#!/usr/bin/env ocaml
(* libguestfs
- * Copyright (C) 2009 Red Hat Inc.
+ * Copyright (C) 2009-2010 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* all the daemon actions.
*
* To add a new action there are only two files you need to change,
- * this one to describe the interface (see the big table below), and
- * daemon/<somefile>.c to write the implementation.
+ * this one to describe the interface (see the big table of
+ * 'daemon_functions' below), and daemon/<somefile>.c to write the
+ * implementation.
*
- * After editing this file, run it (./src/generator.ml) to regenerate all the
- * output files. Note that if you are using a separate build directory you
- * must run generator.ml from the _source_ directory.
+ * After editing this file, run it (./src/generator.ml) to regenerate
+ * all the output files. 'make' will rerun this automatically when
+ * necessary. Note that if you are using a separate build directory
+ * you must run generator.ml from the _source_ directory.
*
* IMPORTANT: This script should NOT print any warnings. If it prints
* warnings, you should treat them as errors.
+ *
+ * OCaml tips:
+ * (1) In emacs, install tuareg-mode to display and format OCaml code
+ * correctly. 'vim' comes with a good OCaml editing mode by default.
+ * (2) Read the resources at http://ocaml-tutorial.org/
*)
#load "unix.cma";;
#load "str.cma";;
+#directory "+xml-light";;
+#directory "+../pkg-lib/xml-light";; (* for GODI users *)
+#load "xml-light.cma";;
open Unix
open Printf
*)
| FileIn of string
| FileOut of string
-(* Not implemented:
(* Opaque buffer which can contain arbitrary 8 bit data.
- * In the C API, this is expressed as <char *, int> pair.
+ * In the C API, this is expressed as <const char *, size_t> pair.
* Most other languages have a string type which can contain
* ASCII NUL. We use whatever type is appropriate for each
* language.
* To return an arbitrary buffer, use RBufferOut.
*)
| BufferIn of string
-*)
+ (* Key material / passphrase. Eventually we should treat this
+ * as sensitive and mlock it into physical RAM. However this
+ * is highly complex because of all the places that XDR-encoded
+ * strings can end up. So currently the only difference from
+ * 'String' is the way that guestfish requests these parameters
+ * from the user.
+ *)
+ | Key of string
type flags =
| ProtocolLimitWarning (* display warning about protocol size limits *)
| DangerWillRobinson (* flags particularly dangerous commands *)
| FishAlias of string (* provide an alias for this cmd in guestfish *)
- | FishAction of string (* call this function in guestfish *)
+ | FishOutput of fish_output_t (* how to display output in guestfish *)
| NotInFish (* do not export via guestfish *)
| NotInDocs (* do not add this function to documentation *)
| DeprecatedBy of string (* function is deprecated, use .. instead *)
| Optional of string (* function is part of an optional group *)
+ | Progress (* function can generate progress messages *)
+
+and fish_output_t =
+ | FishOutputOctal (* for int return, print in octal *)
+ | FishOutputHexadecimal (* for int return, print in hex *)
(* You can supply zero or as many tests as you want per API call.
*
(* As for 'If' but the test runs _unless_ the code returns true. *)
| Unless of string
+ (* Run the test only if 'string' is available in the daemon. *)
+ | IfAvailable of string
+
(* Some initial scenarios for testing. *)
and test_init =
(* Do nothing, block devices could contain random stuff including
Int64 "integer64";
FileIn "filein";
FileOut "fileout";
+ BufferIn "bufferin";
]
let test_all_rets = [
*)
let non_daemon_functions = test_functions @ [
- ("launch", (RErr, []), -1, [FishAlias "run"; FishAction "launch"],
+ ("launch", (RErr, []), -1, [FishAlias "run"],
[],
"launch the qemu subprocess",
"\
This is equivalent to the qemu parameter
C<-drive file=filename,cache=off,if=...>.
+
C<cache=off> is omitted in cases where it is not supported by
the underlying filesystem.
+C<if=...> is set at compile time by the configuration option
+C<./configure --with-drive-if=...>. In the rare case where you
+might need to change this at run time, use C<guestfs_add_drive_with_if>
+or C<guestfs_add_drive_ro_with_if>.
+
Note that this call checks for the existence of C<filename>. This
stops you from specifying other types of drive which are supported
by qemu such as C<nbd:> and C<http:> URLs. To specify those, use
This is equivalent to the qemu parameter C<-cdrom filename>.
-Note that this call checks for the existence of C<filename>. This
+Notes:
+
+=over 4
+
+=item *
+
+This call checks for the existence of C<filename>. This
stops you from specifying other types of drive which are supported
by qemu such as C<nbd:> and C<http:> URLs. To specify those, use
-the general C<guestfs_config> call instead.");
+the general C<guestfs_config> call instead.
+
+=item *
+
+If you just want to add an ISO file (often you use this as an
+efficient way to transfer large files into the guest), then you
+should probably use C<guestfs_add_drive_ro> instead.
+
+=back");
("add_drive_ro", (RErr, [String "filename"]), -1, [FishAlias "add-ro"],
[],
This is equivalent to the qemu parameter
C<-drive file=filename,snapshot=on,if=...>.
+C<if=...> is set at compile time by the configuration option
+C<./configure --with-drive-if=...>. In the rare case where you
+might need to change this at run time, use C<guestfs_add_drive_with_if>
+or C<guestfs_add_drive_ro_with_if>.
+
Note that this call checks for the existence of C<filename>. This
stops you from specifying other types of drive which are supported
by qemu such as C<nbd:> and C<http:> URLs. To specify those, use
C<value> can be NULL.");
- ("set_qemu", (RErr, [String "qemu"]), -1, [FishAlias "qemu"],
+ ("set_qemu", (RErr, [OptString "qemu"]), -1, [FishAlias "qemu"],
[],
"set the qemu binary",
"\
You can also override this by setting the C<LIBGUESTFS_QEMU>
environment variable.
-Setting C<qemu> to C<NULL> restores the default qemu binary.");
+Setting C<qemu> to C<NULL> restores the default qemu binary.
+
+Note that you should call this function as early as possible
+after creating the handle. This is because some pre-launch
+operations depend on testing qemu features (by running C<qemu -help>).
+If the qemu binary changes, we don't retest features, and
+so you might see inconsistent results. Using the environment
+variable C<LIBGUESTFS_QEMU> is safest of all since that picks
+the qemu binary at the same time as the handle is created.");
("get_qemu", (RConstString "qemu", []), -1, [],
[InitNone, Always, TestRun (
This is always non-NULL. If it wasn't set already, then this will
return the default qemu binary name.");
- ("set_path", (RErr, [String "searchpath"]), -1, [FishAlias "path"],
+ ("set_path", (RErr, [OptString "searchpath"]), -1, [FishAlias "path"],
[],
"set the search path",
"\
This call was added in version C<1.0.58>. In previous
versions of libguestfs there was no way to get the version
-number. From C code you can use ELF weak linking tricks to find out if
-this symbol exists (if it doesn't, then it's an earlier version).
+number. From C code you can use dynamic linker functions
+to find out if this symbol exists (if it doesn't, then
+it's an earlier version).
The call returns a structure with four elements. The first
three (C<major>, C<minor> and C<release>) are numbers and
To construct the original version string:
C<$major.$minor.$release$extra>
+See also: L<guestfs(3)/LIBGUESTFS VERSION NUMBERS>.
+
I<Note:> Don't use this call to test for availability
-of features. Distro backports makes this unreliable. Use
-C<guestfs_available> instead.");
+of features. In enterprise distributions we backport
+features from later versions into earlier versions,
+making this an unreliable way to test for features.
+Use C<guestfs_available> instead.");
("set_selinux", (RErr, [Bool "selinux"]), -1, [FishAlias "selinux"],
[InitNone, Always, TestOutputTrue (
"enable or disable command traces",
"\
If the command trace flag is set to 1, then commands are
-printed on stdout before they are executed in a format
+printed on stderr before they are executed in a format
which is very similar to the one used by guestfish. In
other words, you can run a program with this enabled, and
you will get out a script which you can feed to guestfish
"\
Return the recovery process enabled flag.");
+ ("add_drive_with_if", (RErr, [String "filename"; String "iface"]), -1, [],
+ [],
+ "add a drive specifying the QEMU block emulation to use",
+ "\
+This is the same as C<guestfs_add_drive> but it allows you
+to specify the QEMU interface emulation to use at run time.");
+
+ ("add_drive_ro_with_if", (RErr, [String "filename"; String "iface"]), -1, [],
+ [],
+ "add a drive read-only specifying the QEMU block emulation to use",
+ "\
+This is the same as C<guestfs_add_drive_ro> but it allows you
+to specify the QEMU interface emulation to use at run time.");
+
+ ("file_architecture", (RString "arch", [Pathname "filename"]), -1, [],
+ [InitISOFS, Always, TestOutput (
+ [["file_architecture"; "/bin-i586-dynamic"]], "i386");
+ InitISOFS, Always, TestOutput (
+ [["file_architecture"; "/bin-sparc-dynamic"]], "sparc");
+ InitISOFS, Always, TestOutput (
+ [["file_architecture"; "/bin-win32.exe"]], "i386");
+ InitISOFS, Always, TestOutput (
+ [["file_architecture"; "/bin-win64.exe"]], "x86_64");
+ InitISOFS, Always, TestOutput (
+ [["file_architecture"; "/bin-x86_64-dynamic"]], "x86_64");
+ InitISOFS, Always, TestOutput (
+ [["file_architecture"; "/lib-i586.so"]], "i386");
+ InitISOFS, Always, TestOutput (
+ [["file_architecture"; "/lib-sparc.so"]], "sparc");
+ InitISOFS, Always, TestOutput (
+ [["file_architecture"; "/lib-win32.dll"]], "i386");
+ InitISOFS, Always, TestOutput (
+ [["file_architecture"; "/lib-win64.dll"]], "x86_64");
+ InitISOFS, Always, TestOutput (
+ [["file_architecture"; "/lib-x86_64.so"]], "x86_64");
+ InitISOFS, Always, TestOutput (
+ [["file_architecture"; "/initrd-x86_64.img"]], "x86_64");
+ InitISOFS, Always, TestOutput (
+ [["file_architecture"; "/initrd-x86_64.img.gz"]], "x86_64");],
+ "detect the architecture of a binary file",
+ "\
+This detects the architecture of the binary C<filename>,
+and returns it if known.
+
+Currently defined architectures are:
+
+=over 4
+
+=item \"i386\"
+
+This string is returned for all 32 bit i386, i486, i586, i686 binaries
+irrespective of the precise processor requirements of the binary.
+
+=item \"x86_64\"
+
+64 bit x86-64.
+
+=item \"sparc\"
+
+32 bit SPARC.
+
+=item \"sparc64\"
+
+64 bit SPARC V9 and above.
+
+=item \"ia64\"
+
+Intel Itanium.
+
+=item \"ppc\"
+
+32 bit Power PC.
+
+=item \"ppc64\"
+
+64 bit Power PC.
+
+=back
+
+Libguestfs may return other architecture strings in future.
+
+The function works on at least the following types of files:
+
+=over 4
+
+=item *
+
+many types of Un*x and Linux binary
+
+=item *
+
+many types of Un*x and Linux shared library
+
+=item *
+
+Windows Win32 and Win64 binaries
+
+=item *
+
+Windows Win32 and Win64 DLLs
+
+Win32 binaries and DLLs return C<i386>.
+
+Win64 binaries and DLLs return C<x86_64>.
+
+=item *
+
+Linux kernel modules
+
+=item *
+
+Linux new-style initrd images
+
+=item *
+
+some non-x86 Linux vmlinuz kernels
+
+=back
+
+What it can't do currently:
+
+=over 4
+
+=item *
+
+static libraries (libfoo.a)
+
+=item *
+
+Linux old-style initrd as compressed ext2 filesystem (RHEL 3)
+
+=item *
+
+x86 Linux vmlinuz kernels
+
+x86 vmlinuz images (bzImage format) consist of a mix of 16-, 32- and
+compressed code, and are horribly hard to unpack. If you want to find
+the architecture of a kernel, use the architecture of the associated
+initrd or kernel module(s) instead.
+
+=back");
+
+ ("inspect_os", (RStringList "roots", []), -1, [],
+ [],
+ "inspect disk and return list of operating systems found",
+ "\
+This function uses other libguestfs functions and certain
+heuristics to inspect the disk(s) (usually disks belonging to
+a virtual machine), looking for operating systems.
+
+The list returned is empty if no operating systems were found.
+
+If one operating system was found, then this returns a list with
+a single element, which is the name of the root filesystem of
+this operating system. It is also possible for this function
+to return a list containing more than one element, indicating
+a dual-boot or multi-boot virtual machine, with each element being
+the root filesystem of one of the operating systems.
+
+You can pass the root string(s) returned to other
+C<guestfs_inspect_get_*> functions in order to query further
+information about each operating system, such as the name
+and version.
+
+This function uses other libguestfs features such as
+C<guestfs_mount_ro> and C<guestfs_umount_all> in order to mount
+and unmount filesystems and look at the contents. This should
+be called with no disks currently mounted. The function may also
+use Augeas, so any existing Augeas handle will be closed.
+
+This function cannot decrypt encrypted disks. The caller
+must do that first (supplying the necessary keys) if the
+disk is encrypted.
+
+Please read L<guestfs(3)/INSPECTION> for more details.");
+
+ ("inspect_get_type", (RString "name", [Device "root"]), -1, [],
+ [],
+ "get type of inspected operating system",
+ "\
+This function should only be called with a root device string
+as returned by C<guestfs_inspect_os>.
+
+This returns the type of the inspected operating system.
+Currently defined types are:
+
+=over 4
+
+=item \"linux\"
+
+Any Linux-based operating system.
+
+=item \"windows\"
+
+Any Microsoft Windows operating system.
+
+=item \"unknown\"
+
+The operating system type could not be determined.
+
+=back
+
+Future versions of libguestfs may return other strings here.
+The caller should be prepared to handle any string.
+
+Please read L<guestfs(3)/INSPECTION> for more details.");
+
+ ("inspect_get_arch", (RString "arch", [Device "root"]), -1, [],
+ [],
+ "get architecture of inspected operating system",
+ "\
+This function should only be called with a root device string
+as returned by C<guestfs_inspect_os>.
+
+This returns the architecture of the inspected operating system.
+The possible return values are listed under
+C<guestfs_file_architecture>.
+
+If the architecture could not be determined, then the
+string C<unknown> is returned.
+
+Please read L<guestfs(3)/INSPECTION> for more details.");
+
+ ("inspect_get_distro", (RString "distro", [Device "root"]), -1, [],
+ [],
+ "get distro of inspected operating system",
+ "\
+This function should only be called with a root device string
+as returned by C<guestfs_inspect_os>.
+
+This returns the distro (distribution) of the inspected operating
+system.
+
+Currently defined distros are:
+
+=over 4
+
+=item \"debian\"
+
+Debian or a Debian-derived distro such as Ubuntu.
+
+=item \"fedora\"
+
+Fedora.
+
+=item \"redhat-based\"
+
+Some Red Hat-derived distro.
+
+=item \"rhel\"
+
+Red Hat Enterprise Linux and some derivatives.
+
+=item \"windows\"
+
+Windows does not have distributions. This string is
+returned if the OS type is Windows.
+
+=item \"unknown\"
+
+The distro could not be determined.
+
+=back
+
+Future versions of libguestfs may return other strings here.
+The caller should be prepared to handle any string.
+
+Please read L<guestfs(3)/INSPECTION> for more details.");
+
+ ("inspect_get_major_version", (RInt "major", [Device "root"]), -1, [],
+ [],
+ "get major version of inspected operating system",
+ "\
+This function should only be called with a root device string
+as returned by C<guestfs_inspect_os>.
+
+This returns the major version number of the inspected operating
+system.
+
+Windows uses a consistent versioning scheme which is I<not>
+reflected in the popular public names used by the operating system.
+Notably the operating system known as \"Windows 7\" is really
+version 6.1 (ie. major = 6, minor = 1). You can find out the
+real versions corresponding to releases of Windows by consulting
+Wikipedia or MSDN.
+
+If the version could not be determined, then C<0> is returned.
+
+Please read L<guestfs(3)/INSPECTION> for more details.");
+
+ ("inspect_get_minor_version", (RInt "minor", [Device "root"]), -1, [],
+ [],
+ "get minor version of inspected operating system",
+ "\
+This function should only be called with a root device string
+as returned by C<guestfs_inspect_os>.
+
+This returns the minor version number of the inspected operating
+system.
+
+If the version could not be determined, then C<0> is returned.
+
+Please read L<guestfs(3)/INSPECTION> for more details.
+See also C<guestfs_inspect_get_major_version>.");
+
+ ("inspect_get_product_name", (RString "product", [Device "root"]), -1, [],
+ [],
+ "get product name of inspected operating system",
+ "\
+This function should only be called with a root device string
+as returned by C<guestfs_inspect_os>.
+
+This returns the product name of the inspected operating
+system. The product name is generally some freeform string
+which can be displayed to the user, but should not be
+parsed by programs.
+
+If the product name could not be determined, then the
+string C<unknown> is returned.
+
+Please read L<guestfs(3)/INSPECTION> for more details.");
+
+ ("inspect_get_mountpoints", (RHashtable "mountpoints", [Device "root"]), -1, [],
+ [],
+ "get mountpoints of inspected operating system",
+ "\
+This function should only be called with a root device string
+as returned by C<guestfs_inspect_os>.
+
+This returns a hash of where we think the filesystems
+associated with this operating system should be mounted.
+Callers should note that this is at best an educated guess
+made by reading configuration files such as C</etc/fstab>.
+
+Each element in the returned hashtable has a key which
+is the path of the mountpoint (eg. C</boot>) and a value
+which is the filesystem that would be mounted there
+(eg. C</dev/sda1>).
+
+Non-mounted devices such as swap devices are I<not>
+returned in this list.
+
+Please read L<guestfs(3)/INSPECTION> for more details.
+See also C<guestfs_inspect_get_filesystems>.");
+
+ ("inspect_get_filesystems", (RStringList "filesystems", [Device "root"]), -1, [],
+ [],
+ "get filesystems associated with inspected operating system",
+ "\
+This function should only be called with a root device string
+as returned by C<guestfs_inspect_os>.
+
+This returns a list of all the filesystems that we think
+are associated with this operating system. This includes
+the root filesystem, other ordinary filesystems, and
+non-mounted devices like swap partitions.
+
+In the case of a multi-boot virtual machine, it is possible
+for a filesystem to be shared between operating systems.
+
+Please read L<guestfs(3)/INSPECTION> for more details.
+See also C<guestfs_inspect_get_mountpoints>.");
+
+ ("set_network", (RErr, [Bool "network"]), -1, [FishAlias "network"],
+ [],
+ "set enable network flag",
+ "\
+If C<network> is true, then the network is enabled in the
+libguestfs appliance. The default is false.
+
+This affects whether commands are able to access the network
+(see L<guestfs(3)/RUNNING COMMANDS>).
+
+You must call this before calling C<guestfs_launch>, otherwise
+it has no effect.");
+
+ ("get_network", (RBool "network", []), -1, [],
+ [],
+ "get enable network flag",
+ "\
+This returns the enable network flag.");
+
]
(* daemon_functions are any functions which cause some action
[["part_disk"; "/dev/sda"; "mbr"];
["mkfs"; "ext2"; "/dev/sda1"];
["mount"; "/dev/sda1"; "/"];
- ["write_file"; "/new"; "new file contents"; "0"];
+ ["write"; "/new"; "new file contents"];
["cat"; "/new"]], "new file contents")],
"mount a guest disk at a position in the filesystem",
"\
The mounted filesystem is writable, if we have sufficient permissions
on the underlying device.
-The filesystem options C<sync> and C<noatime> are set with this
-call, in order to improve reliability.");
+B<Important note:>
+When you use this call, the filesystem options C<sync> and C<noatime>
+are set implicitly. This was originally done because we thought it
+would improve reliability, but it turns out that I<-o sync> has a
+very large negative performance impact and negligible effect on
+reliability. Therefore we recommend that you avoid using
+C<guestfs_mount> in any code that needs performance, and instead
+use C<guestfs_mount_options> (use an empty string for the first
+parameter if you don't want any options).");
("sync", (RErr, []), 2, [],
[ InitEmpty, Always, TestRun [["sync"]]],
"\
Touch acts like the L<touch(1)> command. It can be used to
update the timestamps on a file, or, if the file does not exist,
-to create a new zero-length file.");
+to create a new zero-length file.
+
+This command only works on regular files, and will fail on other
+file types such as directories, symbolic links, block special etc.");
("cat", (RString "content", [Pathname "path"]), 4, [ProtocolLimitWarning],
[InitISOFS, Always, TestOutput (
[], (* XXX Augeas code needs tests. *)
"set Augeas path to value",
"\
-Set the value associated with C<path> to C<value>.");
+Set the value associated with C<path> to C<val>.
+
+In the Augeas API, it is possible to clear a node by setting
+the value to NULL. Due to an oversight in the libguestfs API
+you cannot do that with this call. Instead you must use the
+C<guestfs_aug_clear> call.");
("aug_insert", (RErr, [String "augpath"; String "label"; Bool "before"]), 21, [Optional "augeas"],
[], (* XXX Augeas code needs tests. *)
"change file mode",
"\
Change the mode (permissions) of C<path> to C<mode>. Only
-numeric modes are supported.");
+numeric modes are supported.
+
+I<Note>: When using this command from guestfish, C<mode>
+by default would be decimal, unless you prefix it with
+C<0> to get octal, ie. use C<0700> not C<700>.
+
+The mode actually set is affected by the umask.");
("chown", (RErr, [Int "owner"; Int "group"; Pathname "path"]), 35, [],
[], (* XXX Need stat command to test *)
[["is_file"; "/known-1"]]);
InitISOFS, Always, TestOutputFalse (
[["is_file"; "/directory"]])],
- "test if file exists",
+ "test if a regular file",
"\
-This returns C<true> if and only if there is a file
+This returns C<true> if and only if there is a regular file
with the given C<path> name. Note that it returns false for
other objects like directories.
[["is_dir"; "/known-3"]]);
InitISOFS, Always, TestOutputTrue (
[["is_dir"; "/directory"]])],
- "test if file exists",
+ "test if a directory",
"\
This returns C<true> if and only if there is a directory
with the given C<path> name. Note that it returns false for
["lvs"]],
["/dev/VG1/LV1"; "/dev/VG1/LV2";
"/dev/VG2/LV3"; "/dev/VG2/LV4"; "/dev/VG2/LV5"])],
- "create an LVM volume group",
+ "create an LVM logical volume",
"\
-This creates an LVM volume group called C<logvol>
+This creates an LVM logical volume called C<logvol>
on the volume group C<volgroup>, with C<size> megabytes.");
("mkfs", (RErr, [String "fstype"; Device "device"]), 42, [],
[InitEmpty, Always, TestOutput (
[["part_disk"; "/dev/sda"; "mbr"];
["mkfs"; "ext2"; "/dev/sda1"];
- ["mount"; "/dev/sda1"; "/"];
- ["write_file"; "/new"; "new file contents"; "0"];
+ ["mount_options"; ""; "/dev/sda1"; "/"];
+ ["write"; "/new"; "new file contents"];
["cat"; "/new"]], "new file contents")],
"make a filesystem",
"\
See also: C<guestfs_sfdisk_l>, C<guestfs_sfdisk_N>,
C<guestfs_part_init>");
- ("write_file", (RErr, [Pathname "path"; String "content"; Int "size"]), 44, [ProtocolLimitWarning],
- [InitBasicFS, Always, TestOutput (
- [["write_file"; "/new"; "new file contents"; "0"];
- ["cat"; "/new"]], "new file contents");
- InitBasicFS, Always, TestOutput (
- [["write_file"; "/new"; "\nnew file contents\n"; "0"];
- ["cat"; "/new"]], "\nnew file contents\n");
- InitBasicFS, Always, TestOutput (
- [["write_file"; "/new"; "\n\n"; "0"];
- ["cat"; "/new"]], "\n\n");
- InitBasicFS, Always, TestOutput (
- [["write_file"; "/new"; ""; "0"];
- ["cat"; "/new"]], "");
- InitBasicFS, Always, TestOutput (
- [["write_file"; "/new"; "\n\n\n"; "0"];
- ["cat"; "/new"]], "\n\n\n");
- InitBasicFS, Always, TestOutput (
- [["write_file"; "/new"; "\n"; "0"];
- ["cat"; "/new"]], "\n")],
+ ("write_file", (RErr, [Pathname "path"; String "content"; Int "size"]), 44, [ProtocolLimitWarning; DeprecatedBy "write"],
+ (* Regression test for RHBZ#597135. *)
+ [InitBasicFS, Always, TestLastFail
+ [["write_file"; "/new"; "abc"; "10000"]]],
"create a file",
"\
This call creates a file called C<path>. The contents of the
the content cannot contain embedded ASCII NULs).
I<NB.> Owing to a bug, writing content containing ASCII NUL
-characters does I<not> work, even if the length is specified.
-We hope to resolve this bug in a future version. In the meantime
-use C<guestfs_upload>.");
+characters does I<not> work, even if the length is specified.");
("umount", (RErr, [String "pathordevice"]), 45, [FishAlias "unmount"],
[InitEmpty, Always, TestOutputListOfDevices (
[["part_disk"; "/dev/sda"; "mbr"];
["mkfs"; "ext2"; "/dev/sda1"];
- ["mount"; "/dev/sda1"; "/"];
+ ["mount_options"; ""; "/dev/sda1"; "/"];
["mounts"]], ["/dev/sda1"]);
InitEmpty, Always, TestOutputList (
[["part_disk"; "/dev/sda"; "mbr"];
["mkfs"; "ext2"; "/dev/sda1"];
- ["mount"; "/dev/sda1"; "/"];
+ ["mount_options"; ""; "/dev/sda1"; "/"];
["umount"; "/"];
["mounts"]], [])],
"unmount a filesystem",
["mkfs"; "ext2"; "/dev/sda1"];
["mkfs"; "ext2"; "/dev/sda2"];
["mkfs"; "ext2"; "/dev/sda3"];
- ["mount"; "/dev/sda1"; "/"];
+ ["mount_options"; ""; "/dev/sda1"; "/"];
["mkdir"; "/mp1"];
- ["mount"; "/dev/sda2"; "/mp1"];
+ ["mount_options"; ""; "/dev/sda2"; "/mp1"];
["mkdir"; "/mp1/mp2"];
- ["mount"; "/dev/sda3"; "/mp1/mp2"];
+ ["mount_options"; ""; "/dev/sda3"; "/mp1/mp2"];
["mkdir"; "/mp1/mp2/mp3"];
["umount_all"];
["mounts"]], [])],
InitISOFS, Always, TestOutput (
[["file"; "/known-1"]], "ASCII text");
InitISOFS, Always, TestLastFail (
- [["file"; "/notexists"]])],
+ [["file"; "/notexists"]]);
+ InitISOFS, Always, TestOutput (
+ [["file"; "/abssymlink"]], "symbolic link");
+ InitISOFS, Always, TestOutput (
+ [["file"; "/directory"]], "directory")],
"determine file type",
"\
This call uses the standard L<file(1)> command to determine
-the type or contents of the file. This also works on devices,
-for example to find out whether a partition contains a filesystem.
+the type or contents of the file.
This call will also transparently look inside various types
of compressed file.
-The exact command which runs is C<file -zbsL path>. Note in
+The exact command which runs is C<file -zb path>. Note in
particular that the filename is not prepended to the output
-(the C<-b> option).");
+(the C<-b> option).
+
+This command can also be used on C</dev/> devices
+(and partitions, LV names). You can for example use this
+to determine if a device contains a filesystem, although
+it's usually better to use C<guestfs_vfs_type>.
+
+If the C<path> does not begin with C</dev/> then
+this command only works for the content of regular files.
+For other file types (directory, symbolic link etc) it
+will just return the string C<directory> etc.");
("command", (RString "output", [StringList "arguments"]), 50, [ProtocolLimitWarning],
[InitBasicFS, Always, TestOutput (
This uses the L<blockdev(8)> command.");
- ("upload", (RErr, [FileIn "filename"; String "remotefilename"]), 66, [],
+ ("upload", (RErr, [FileIn "filename"; Dev_or_Path "remotefilename"]), 66, [],
[InitBasicFS, Always, TestOutput (
(* Pick a file from cwd which isn't likely to change. *)
[["upload"; "../COPYING.LIB"; "/COPYING.LIB"];
["checksum"; "md5"; "/COPYING.LIB"]],
- Digest.to_hex (Digest.file "COPYING.LIB"))],
+ Digest.to_hex (Digest.file "COPYING.LIB"))],
"upload a file from the local machine",
"\
Upload local file C<filename> to C<remotefilename> on the
See also C<guestfs_download>.");
- ("download", (RErr, [Dev_or_Path "remotefilename"; FileOut "filename"]), 67, [],
+ ("download", (RErr, [Dev_or_Path "remotefilename"; FileOut "filename"]), 67, [Progress],
[InitBasicFS, Always, TestOutput (
(* Pick a file from cwd which isn't likely to change. *)
[["upload"; "../COPYING.LIB"; "/COPYING.LIB"];
["download"; "/COPYING.LIB"; "testdownload.tmp"];
["upload"; "testdownload.tmp"; "/upload"];
["checksum"; "md5"; "/upload"]],
- Digest.to_hex (Digest.file "COPYING.LIB"))],
+ Digest.to_hex (Digest.file "COPYING.LIB"))],
"download a file to the local machine",
"\
Download file C<remotefilename> and save it as C<filename>
InitISOFS, Always, TestOutput (
[["checksum"; "sha384"; "/known-3"]], "5fa7883430f357b5d7b7271d3a1d2872b51d73cba72731de6863d3dea55f30646af2799bef44d5ea776a5ec7941ac640");
InitISOFS, Always, TestOutput (
- [["checksum"; "sha512"; "/known-3"]], "2794062c328c6b216dca90443b7f7134c5f40e56bd0ed7853123275a09982a6f992e6ca682f9d2fba34a4c5e870d8fe077694ff831e3032a004ee077e00603f6")],
+ [["checksum"; "sha512"; "/known-3"]], "2794062c328c6b216dca90443b7f7134c5f40e56bd0ed7853123275a09982a6f992e6ca682f9d2fba34a4c5e870d8fe077694ff831e3032a004ee077e00603f6");
+ (* Test for RHBZ#579608, absolute symbolic links. *)
+ InitISOFS, Always, TestOutput (
+ [["checksum"; "sha512"; "/abssymlink"]], "5f57d0639bc95081c53afc63a449403883818edc64da48930ad6b1a4fb49be90404686877743fbcd7c99811f3def7df7bc22635c885c6a8cf79c806b43451c1a")],
"compute MD5, SHAx or CRC checksum of file",
"\
This call computes the MD5, SHAx or CRC checksum of the
=back
-The checksum is returned as a printable string.");
+The checksum is returned as a printable string.
+
+To get the checksum for a device, use C<guestfs_checksum_device>.
- ("tar_in", (RErr, [FileIn "tarfile"; String "directory"]), 69, [],
+To get the checksums for many files, use C<guestfs_checksums_out>.");
+
+ ("tar_in", (RErr, [FileIn "tarfile"; Pathname "directory"]), 69, [],
[InitBasicFS, Always, TestOutput (
[["tar_in"; "../images/helloworld.tar"; "/"];
["cat"; "/hello"]], "hello\n")],
This command uploads and unpacks local file C<tarfile> (an
I<uncompressed> tar file) into C<directory>.
-To upload a compressed tarball, use C<guestfs_tgz_in>.");
+To upload a compressed tarball, use C<guestfs_tgz_in>
+or C<guestfs_txz_in>.");
("tar_out", (RErr, [String "directory"; FileOut "tarfile"]), 70, [],
[],
This command packs the contents of C<directory> and downloads
it to local file C<tarfile>.
-To download a compressed tarball, use C<guestfs_tgz_out>.");
+To download a compressed tarball, use C<guestfs_tgz_out>
+or C<guestfs_txz_out>.");
- ("tgz_in", (RErr, [FileIn "tarball"; String "directory"]), 71, [],
+ ("tgz_in", (RErr, [FileIn "tarball"; Pathname "directory"]), 71, [],
[InitBasicFS, Always, TestOutput (
[["tgz_in"; "../images/helloworld.tar.gz"; "/"];
["cat"; "/hello"]], "hello\n")],
["mount_ro"; "/dev/sda1"; "/"];
["touch"; "/new"]]);
InitBasicFS, Always, TestOutput (
- [["write_file"; "/new"; "data"; "0"];
+ [["write"; "/new"; "data"];
["umount"; "/"];
["mount_ro"; "/dev/sda1"; "/"];
["cat"; "/new"]], "data")],
"\
This is the same as the C<guestfs_mount> command, but it
allows you to set the mount options as for the
-L<mount(8)> I<-o> flag.");
+L<mount(8)> I<-o> flag.
+
+If the C<options> parameter is an empty string, then
+no options are passed (all options default to whatever
+the filesystem uses).");
("mount_vfs", (RErr, [String "options"; String "vfstype"; Device "device"; String "mountpoint"]), 75, [],
[],
You can use either C<guestfs_tune2fs_l> or C<guestfs_get_e2label>
to return the existing label on a filesystem.");
- ("get_e2label", (RString "label", [Device "device"]), 81, [],
+ ("get_e2label", (RString "label", [Device "device"]), 81, [DeprecatedBy "vfs_label"],
[],
"get the ext2/3/4 filesystem label",
"\
You can use either C<guestfs_tune2fs_l> or C<guestfs_get_e2uuid>
to return the existing UUID of a filesystem.");
- ("get_e2uuid", (RString "uuid", [Device "device"]), 83, [],
- [],
+ ("get_e2uuid", (RString "uuid", [Device "device"]), 83, [DeprecatedBy "vfs_uuid"],
+ (* Regression test for RHBZ#597112. *)
+ (let uuid = uuidgen () in
+ [InitBasicFS, Always, TestOutput (
+ [["mke2journal"; "1024"; "/dev/sdb"];
+ ["set_e2uuid"; "/dev/sdb"; uuid];
+ ["get_e2uuid"; "/dev/sdb"]], uuid)]),
"get the ext2/3/4 filesystem UUID",
"\
This returns the ext2/3/4 filesystem UUID of the filesystem on
C<device>.");
- ("fsck", (RInt "status", [String "fstype"; Device "device"]), 84, [],
+ ("fsck", (RInt "status", [String "fstype"; Device "device"]), 84, [FishOutput FishOutputHexadecimal],
[InitBasicFS, Always, TestOutputInt (
[["umount"; "/dev/sda1"];
["fsck"; "ext2"; "/dev/sda1"]], 0);
This command is entirely equivalent to running C<fsck -a -t fstype device>.");
- ("zero", (RErr, [Device "device"]), 85, [],
+ ("zero", (RErr, [Device "device"]), 85, [Progress],
[InitBasicFS, Always, TestOutput (
[["umount"; "/dev/sda1"];
["zero"; "/dev/sda1"];
to securely wipe the device). It should be sufficient to remove
any partition tables, filesystem superblocks and so on.
-See also: C<guestfs_scrub_device>.");
+See also: C<guestfs_zero_device>, C<guestfs_scrub_device>.");
("grub_install", (RErr, [Pathname "root"; Device "device"]), 86, [],
- (* Test disabled because grub-install incompatible with virtio-blk driver.
- * See also: https://bugzilla.redhat.com/show_bug.cgi?id=479760
+ (* See:
+ * https://bugzilla.redhat.com/show_bug.cgi?id=484986
+ * https://bugzilla.redhat.com/show_bug.cgi?id=479760
*)
- [InitBasicFS, Disabled, TestOutputTrue (
- [["grub_install"; "/"; "/dev/sda1"];
+ [InitBasicFS, Always, TestOutputTrue (
+ [["mkdir_p"; "/boot/grub"];
+ ["write"; "/boot/grub/device.map"; "(hd0) /dev/vda"];
+ ["grub_install"; "/"; "/dev/vda"];
["is_dir"; "/boot"]])],
"install GRUB",
"\
This command installs GRUB (the Grand Unified Bootloader) on
-C<device>, with the root directory being C<root>.");
+C<device>, with the root directory being C<root>.
+
+Note: If grub-install reports the error
+\"No suitable drive was found in the generated device map.\"
+it may be that you need to create a C</boot/grub/device.map>
+file first that contains the mapping between grub device names
+and Linux device names. It is usually sufficient to create
+a file containing:
+
+ (hd0) /dev/vda
+
+replacing C</dev/vda> with the name of the installation device.");
("cp", (RErr, [Pathname "src"; Pathname "dest"]), 87, [],
[InitBasicFS, Always, TestOutput (
- [["write_file"; "/old"; "file content"; "0"];
+ [["write"; "/old"; "file content"];
["cp"; "/old"; "/new"];
["cat"; "/new"]], "file content");
InitBasicFS, Always, TestOutputTrue (
- [["write_file"; "/old"; "file content"; "0"];
+ [["write"; "/old"; "file content"];
["cp"; "/old"; "/new"];
["is_file"; "/old"]]);
InitBasicFS, Always, TestOutput (
- [["write_file"; "/old"; "file content"; "0"];
+ [["write"; "/old"; "file content"];
["mkdir"; "/dir"];
["cp"; "/old"; "/dir/new"];
["cat"; "/dir/new"]], "file content")],
[InitBasicFS, Always, TestOutput (
[["mkdir"; "/olddir"];
["mkdir"; "/newdir"];
- ["write_file"; "/olddir/file"; "file content"; "0"];
+ ["write"; "/olddir/file"; "file content"];
["cp_a"; "/olddir"; "/newdir"];
["cat"; "/newdir/olddir/file"]], "file content")],
"copy a file or directory recursively",
("mv", (RErr, [Pathname "src"; Pathname "dest"]), 89, [],
[InitBasicFS, Always, TestOutput (
- [["write_file"; "/old"; "file content"; "0"];
+ [["write"; "/old"; "file content"];
["mv"; "/old"; "/new"];
["cat"; "/new"]], "file content");
InitBasicFS, Always, TestOutputFalse (
- [["write_file"; "/old"; "file content"; "0"];
+ [["write"; "/old"; "file content"];
["mv"; "/old"; "/new"];
["is_file"; "/old"]])],
"move a file",
("equal", (RBool "equality", [Pathname "file1"; Pathname "file2"]), 93, [],
[InitBasicFS, Always, TestOutputTrue (
- [["write_file"; "/file1"; "contents of a file"; "0"];
+ [["write"; "/file1"; "contents of a file"];
["cp"; "/file1"; "/file2"];
["equal"; "/file1"; "/file2"]]);
InitBasicFS, Always, TestOutputFalse (
- [["write_file"; "/file1"; "contents of a file"; "0"];
- ["write_file"; "/file2"; "contents of another file"; "0"];
+ [["write"; "/file1"; "contents of a file"];
+ ["write"; "/file2"; "contents of another file"];
["equal"; "/file1"; "/file2"]]);
InitBasicFS, Always, TestLastFail (
[["equal"; "/file1"; "/file2"]])],
[InitISOFS, Always, TestOutputList (
[["strings"; "/known-5"]], ["abcdefghi"; "jklmnopqr"]);
InitISOFS, Always, TestOutputList (
- [["strings"; "/empty"]], [])],
+ [["strings"; "/empty"]], []);
+ (* Test for RHBZ#579608, absolute symbolic links. *)
+ InitISOFS, Always, TestRun (
+ [["strings"; "/abssymlink"]])],
"print the printable strings in a file",
"\
This runs the L<strings(1)> command on a file and returns
("strings_e", (RStringList "stringsout", [String "encoding"; Pathname "path"]), 95, [ProtocolLimitWarning],
[InitISOFS, Always, TestOutputList (
[["strings_e"; "b"; "/known-5"]], []);
- InitBasicFS, Disabled, TestOutputList (
- [["write_file"; "/new"; "\000h\000e\000l\000l\000o\000\n\000w\000o\000r\000l\000d\000\n"; "24"];
+ InitBasicFS, Always, TestOutputList (
+ [["write"; "/new"; "\000h\000e\000l\000l\000o\000\n\000w\000o\000r\000l\000d\000\n"];
["strings_e"; "b"; "/new"]], ["hello"; "world"])],
"print the printable strings in a file",
"\
This is like the C<guestfs_strings> command, but allows you to
-specify the encoding.
+specify the encoding of strings that are looked for in
+the source file C<path>.
+
+Allowed encodings are:
+
+=over 4
-See the L<strings(1)> manpage for the full list of encodings.
+=item s
-Commonly useful encodings are C<l> (lower case L) which will
-show strings inside Windows/x86 files.
+Single 7-bit-byte characters like ASCII and the ASCII-compatible
+parts of ISO-8859-X (this is what C<guestfs_strings> uses).
+
+=item S
+
+Single 8-bit-byte characters.
+
+=item b
+
+16-bit big endian strings such as those encoded in
+UTF-16BE or UCS-2BE.
+
+=item l (lower case letter L)
+
+16-bit little endian such as UTF-16LE and UCS-2LE.
+This is useful for examining binaries in Windows guests.
+
+=item B
+
+32-bit big endian such as UCS-4BE.
+
+=item L
+
+32-bit little endian such as UCS-4LE.
+
+=back
The returned strings are transcoded to UTF-8.");
* commands to segfault.
*)
InitISOFS, Always, TestRun (
- [["hexdump"; "/100krandom"]])],
+ [["hexdump"; "/100krandom"]]);
+ (* Test for RHBZ#579608, absolute symbolic links. *)
+ InitISOFS, Always, TestRun (
+ [["hexdump"; "/abssymlink"]])],
"dump a file in hexadecimal",
"\
This runs C<hexdump -C> on the given C<path>. The result is
[InitNone, Always, TestOutput (
[["part_disk"; "/dev/sda"; "mbr"];
["mkfs"; "ext3"; "/dev/sda1"];
- ["mount"; "/dev/sda1"; "/"];
- ["write_file"; "/new"; "test file"; "0"];
+ ["mount_options"; ""; "/dev/sda1"; "/"];
+ ["write"; "/new"; "test file"];
["umount"; "/dev/sda1"];
["zerofree"; "/dev/sda1"];
- ["mount"; "/dev/sda1"; "/"];
+ ["mount_options"; ""; "/dev/sda1"; "/"];
["cat"; "/new"]], "test file")],
"zero unused inodes and disk blocks on ext2/3 filesystem",
"\
["vgcreate"; "VG"; "/dev/sda1"];
["lvcreate"; "LV"; "VG"; "10"];
["mkfs"; "ext2"; "/dev/VG/LV"];
- ["mount"; "/dev/VG/LV"; "/"];
- ["write_file"; "/new"; "test content"; "0"];
+ ["mount_options"; ""; "/dev/VG/LV"; "/"];
+ ["write"; "/new"; "test content"];
["umount"; "/"];
["lvresize"; "/dev/VG/LV"; "20"];
["e2fsck_f"; "/dev/VG/LV"];
["resize2fs"; "/dev/VG/LV"];
- ["mount"; "/dev/VG/LV"; "/"];
- ["cat"; "/new"]], "test content")],
- "resize an LVM logical volume",
+ ["mount_options"; ""; "/dev/VG/LV"; "/"];
+ ["cat"; "/new"]], "test content");
+ InitNone, Always, TestRun (
+ (* Make an LV smaller to test RHBZ#587484. *)
+ [["part_disk"; "/dev/sda"; "mbr"];
+ ["pvcreate"; "/dev/sda1"];
+ ["vgcreate"; "VG"; "/dev/sda1"];
+ ["lvcreate"; "LV"; "VG"; "20"];
+ ["lvresize"; "/dev/VG/LV"; "10"]])],
+ "resize an LVM logical volume",
"\
This resizes (expands or shrinks) an existing LVM logical
volume to C<mbytes>. When reducing, data in the reduced part
("resize2fs", (RErr, [Device "device"]), 106, [],
[], (* lvresize tests this *)
- "resize an ext2/ext3 filesystem",
+ "resize an ext2, ext3 or ext4 filesystem",
"\
-This resizes an ext2 or ext3 filesystem to match the size of
+This resizes an ext2, ext3 or ext4 filesystem to match the size of
the underlying device.
I<Note:> It is sometimes required that you run C<guestfs_e2fsck_f>
("scrub_file", (RErr, [Pathname "file"]), 115, [Optional "scrub"],
[InitBasicFS, Always, TestRun (
- [["write_file"; "/file"; "content"; "0"];
+ [["write"; "/file"; "content"];
["scrub_file"; "/file"]])],
"scrub (securely wipe) a file",
"\
("wc_l", (RInt "lines", [Pathname "path"]), 118, [],
[InitISOFS, Always, TestOutputInt (
- [["wc_l"; "/10klines"]], 10000)],
+ [["wc_l"; "/10klines"]], 10000);
+ (* Test for RHBZ#579608, absolute symbolic links. *)
+ InitISOFS, Always, TestOutputInt (
+ [["wc_l"; "/abssymlink"]], 10000)],
"count lines in a file",
"\
This command counts the lines in a file, using the
("head", (RStringList "lines", [Pathname "path"]), 121, [ProtocolLimitWarning],
[InitISOFS, Always, TestOutputList (
- [["head"; "/10klines"]], ["0abcdefghijklmnopqrstuvwxyz";"1abcdefghijklmnopqrstuvwxyz";"2abcdefghijklmnopqrstuvwxyz";"3abcdefghijklmnopqrstuvwxyz";"4abcdefghijklmnopqrstuvwxyz";"5abcdefghijklmnopqrstuvwxyz";"6abcdefghijklmnopqrstuvwxyz";"7abcdefghijklmnopqrstuvwxyz";"8abcdefghijklmnopqrstuvwxyz";"9abcdefghijklmnopqrstuvwxyz"])],
+ [["head"; "/10klines"]], ["0abcdefghijklmnopqrstuvwxyz";"1abcdefghijklmnopqrstuvwxyz";"2abcdefghijklmnopqrstuvwxyz";"3abcdefghijklmnopqrstuvwxyz";"4abcdefghijklmnopqrstuvwxyz";"5abcdefghijklmnopqrstuvwxyz";"6abcdefghijklmnopqrstuvwxyz";"7abcdefghijklmnopqrstuvwxyz";"8abcdefghijklmnopqrstuvwxyz";"9abcdefghijklmnopqrstuvwxyz"]);
+ (* Test for RHBZ#579608, absolute symbolic links. *)
+ InitISOFS, Always, TestOutputList (
+ [["head"; "/abssymlink"]], ["0abcdefghijklmnopqrstuvwxyz";"1abcdefghijklmnopqrstuvwxyz";"2abcdefghijklmnopqrstuvwxyz";"3abcdefghijklmnopqrstuvwxyz";"4abcdefghijklmnopqrstuvwxyz";"5abcdefghijklmnopqrstuvwxyz";"6abcdefghijklmnopqrstuvwxyz";"7abcdefghijklmnopqrstuvwxyz";"8abcdefghijklmnopqrstuvwxyz";"9abcdefghijklmnopqrstuvwxyz"])],
"return first 10 lines of a file",
"\
This command returns up to the first 10 lines of a file as
The C<mode> parameter should be the mode, using the standard
constants. C<devmajor> and C<devminor> are the
device major and minor numbers, only used when creating block
-and character special devices.");
+and character special devices.
+
+Note that, just like L<mknod(2)>, the mode must be bitwise
+OR'd with S_IFBLK, S_IFCHR, S_IFIFO or S_IFSOCK (otherwise this call
+just creates a regular file). These constants are
+available in the standard Linux header files, or you can use
+C<guestfs_mknod_b>, C<guestfs_mknod_c> or C<guestfs_mkfifo>
+which are wrappers around this command which bitwise OR
+in the appropriate constant for you.
+
+The mode actually set is affected by the umask.");
("mkfifo", (RErr, [Int "mode"; Pathname "path"]), 134, [Optional "mknod"],
[InitBasicFS, Always, TestOutputStruct (
"\
This call creates a FIFO (named pipe) called C<path> with
mode C<mode>. It is just a convenient wrapper around
-C<guestfs_mknod>.");
+C<guestfs_mknod>.
+
+The mode actually set is affected by the umask.");
("mknod_b", (RErr, [Int "mode"; Int "devmajor"; Int "devminor"; Pathname "path"]), 135, [Optional "mknod"],
[InitBasicFS, Always, TestOutputStruct (
"\
This call creates a block device node called C<path> with
mode C<mode> and device major/minor C<devmajor> and C<devminor>.
-It is just a convenient wrapper around C<guestfs_mknod>.");
+It is just a convenient wrapper around C<guestfs_mknod>.
+
+The mode actually set is affected by the umask.");
("mknod_c", (RErr, [Int "mode"; Int "devmajor"; Int "devminor"; Pathname "path"]), 136, [Optional "mknod"],
[InitBasicFS, Always, TestOutputStruct (
"\
This call creates a char device node called C<path> with
mode C<mode> and device major/minor C<devmajor> and C<devminor>.
-It is just a convenient wrapper around C<guestfs_mknod>.");
+It is just a convenient wrapper around C<guestfs_mknod>.
- ("umask", (RInt "oldmask", [Int "mask"]), 137, [],
- [], (* XXX umask is one of those stateful things that we should
- * reset between each test.
- *)
+The mode actually set is affected by the umask.");
+
+ ("umask", (RInt "oldmask", [Int "mask"]), 137, [FishOutput FishOutputOctal],
+ [InitEmpty, Always, TestOutputInt (
+ [["umask"; "0o22"]], 0o22)],
"set file mode creation mask (umask)",
"\
This function sets the mask used for creating new files and
means that directories and device nodes will be created with
C<0644> or C<0755> mode even if you specify C<0777>.
-See also L<umask(2)>, C<guestfs_mknod>, C<guestfs_mkdir>.
+See also C<guestfs_get_umask>,
+L<umask(2)>, C<guestfs_mknod>, C<guestfs_mkdir>.
This call returns the previous umask.");
=item '?'
-The L<readdir(3)> returned a C<d_type> field with an
+The L<readdir(3)> call returned a C<d_type> field with an
unexpected value
=back
device name to directory where the device is mounted.");
("mkmountpoint", (RErr, [String "exemptpath"]), 148, [],
- (* This is a special case: while you would expect a parameter
- * of type "Pathname", that doesn't work, because it implies
- * NEED_ROOT in the generated calling code in stubs.c, and
- * this function cannot use NEED_ROOT.
- *)
+ (* This is a special case: while you would expect a parameter
+ * of type "Pathname", that doesn't work, because it implies
+ * NEED_ROOT in the generated calling code in stubs.c, and
+ * this function cannot use NEED_ROOT.
+ *)
[],
"create a mountpoint",
"\
("read_file", (RBufferOut "content", [Pathname "path"]), 150, [ProtocolLimitWarning],
[InitISOFS, Always, TestOutputBuffer (
- [["read_file"; "/known-4"]], "abc\ndef\nghi")],
+ [["read_file"; "/known-4"]], "abc\ndef\nghi");
+ (* Test various near large, large and too large files (RHBZ#589039). *)
+ InitBasicFS, Always, TestLastFail (
+ [["touch"; "/a"];
+ ["truncate_size"; "/a"; "4194303"]; (* GUESTFS_MESSAGE_MAX - 1 *)
+ ["read_file"; "/a"]]);
+ InitBasicFS, Always, TestLastFail (
+ [["touch"; "/a"];
+ ["truncate_size"; "/a"; "4194304"]; (* GUESTFS_MESSAGE_MAX *)
+ ["read_file"; "/a"]]);
+ InitBasicFS, Always, TestLastFail (
+ [["touch"; "/a"];
+ ["truncate_size"; "/a"; "41943040"]; (* GUESTFS_MESSAGE_MAX * 10 *)
+ ["read_file"; "/a"]])],
"read a file",
"\
This calls returns the contents of the file C<path> as a
[InitISOFS, Always, TestOutputList (
[["grep"; "abc"; "/test-grep.txt"]], ["abc"; "abc123"]);
InitISOFS, Always, TestOutputList (
- [["grep"; "nomatch"; "/test-grep.txt"]], [])],
+ [["grep"; "nomatch"; "/test-grep.txt"]], []);
+ (* Test for RHBZ#579608, absolute symbolic links. *)
+ InitISOFS, Always, TestOutputList (
+ [["grep"; "nomatch"; "/abssymlink"]], [])],
"return lines matching a pattern",
"\
This calls the external C<grep> program and returns the
This calls the external C<zfgrep -i> program and returns the
matching lines.");
- ("realpath", (RString "rpath", [Pathname "path"]), 163, [],
+ ("realpath", (RString "rpath", [Pathname "path"]), 163, [Optional "realpath"],
[InitISOFS, Always, TestOutput (
[["realpath"; "/../directory"]], "/directory")],
"canonicalized absolute pathname",
"\
This command reads the target of a symbolic link.");
- ("fallocate", (RErr, [Pathname "path"; Int "len"]), 169, [],
+ ("fallocate", (RErr, [Pathname "path"; Int "len"]), 169, [DeprecatedBy "fallocate64"],
[InitBasicFS, Always, TestOutputStruct (
[["fallocate"; "/a"; "1000000"];
["stat"; "/a"]], [CompareWithInt ("size", 1_000_000)])],
[InitEmpty, Always, TestOutput (
[["part_disk"; "/dev/sda"; "mbr"];
["mkfs_b"; "ext2"; "4096"; "/dev/sda1"];
- ["mount"; "/dev/sda1"; "/"];
- ["write_file"; "/new"; "new file contents"; "0"];
- ["cat"; "/new"]], "new file contents")],
+ ["mount_options"; ""; "/dev/sda1"; "/"];
+ ["write"; "/new"; "new file contents"];
+ ["cat"; "/new"]], "new file contents");
+ InitEmpty, Always, TestRun (
+ [["part_disk"; "/dev/sda"; "mbr"];
+ ["mkfs_b"; "vfat"; "32768"; "/dev/sda1"]]);
+ InitEmpty, Always, TestLastFail (
+ [["part_disk"; "/dev/sda"; "mbr"];
+ ["mkfs_b"; "vfat"; "32769"; "/dev/sda1"]]);
+ InitEmpty, Always, TestLastFail (
+ [["part_disk"; "/dev/sda"; "mbr"];
+ ["mkfs_b"; "vfat"; "33280"; "/dev/sda1"]]);
+ InitEmpty, IfAvailable "ntfsprogs", TestRun (
+ [["part_disk"; "/dev/sda"; "mbr"];
+ ["mkfs_b"; "ntfs"; "32768"; "/dev/sda1"]])],
"make a filesystem with block size",
"\
This call is similar to C<guestfs_mkfs>, but it allows you to
control the block size of the resulting filesystem. Supported
block sizes depend on the filesystem type, but typically they
-are C<1024>, C<2048> or C<4096> only.");
+are C<1024>, C<2048> or C<4096> only.
+
+For VFAT and NTFS the C<blocksize> parameter is treated as
+the requested cluster size.");
("mke2journal", (RErr, [Int "blocksize"; Device "device"]), 188, [],
[InitEmpty, Always, TestOutput (
[["sfdiskM"; "/dev/sda"; ",100 ,"];
["mke2journal"; "4096"; "/dev/sda1"];
["mke2fs_J"; "ext2"; "4096"; "/dev/sda2"; "/dev/sda1"];
- ["mount"; "/dev/sda2"; "/"];
- ["write_file"; "/new"; "new file contents"; "0"];
+ ["mount_options"; ""; "/dev/sda2"; "/"];
+ ["write"; "/new"; "new file contents"];
["cat"; "/new"]], "new file contents")],
"make ext2/3/4 external journal",
"\
[["sfdiskM"; "/dev/sda"; ",100 ,"];
["mke2journal_L"; "4096"; "JOURNAL"; "/dev/sda1"];
["mke2fs_JL"; "ext2"; "4096"; "/dev/sda2"; "JOURNAL"];
- ["mount"; "/dev/sda2"; "/"];
- ["write_file"; "/new"; "new file contents"; "0"];
+ ["mount_options"; ""; "/dev/sda2"; "/"];
+ ["write"; "/new"; "new file contents"];
["cat"; "/new"]], "new file contents")],
"make ext2/3/4 external journal with label",
"\
[["sfdiskM"; "/dev/sda"; ",100 ,"];
["mke2journal_U"; "4096"; uuid; "/dev/sda1"];
["mke2fs_JU"; "ext2"; "4096"; "/dev/sda2"; uuid];
- ["mount"; "/dev/sda2"; "/"];
- ["write_file"; "/new"; "new file contents"; "0"];
+ ["mount_options"; ""; "/dev/sda2"; "/"];
+ ["write"; "/new"; "new file contents"];
["cat"; "/new"]], "new file contents")]),
"make ext2/3/4 external journal with UUID",
"\
("echo_daemon", (RString "output", [StringList "words"]), 195, [],
[InitNone, Always, TestOutput (
- [["echo_daemon"; "This is a test"]], "This is a test"
- )],
+ [["echo_daemon"; "This is a test"]], "This is a test"
+ )],
"echo arguments back to the client",
"\
-This command concatenate the list of C<words> passed with single spaces between
-them and returns the resulting string.
+This command concatenates the list of C<words> passed with single spaces
+between them and returns the resulting string.
You can use this command to test the connection through to the daemon.
[["vfs_type"; "/dev/sda1"]], "ext2")],
"get the Linux VFS type corresponding to a mounted device",
"\
-This command gets the block device type corresponding to
-a mounted device called C<device>.
+This command gets the filesystem type corresponding to
+the filesystem on C<device>.
-Usually the result is the name of the Linux VFS module that
-is used to mount this device (probably determined automatically
-if you used the C<guestfs_mount> call).");
+For most filesystems, the result is the name of the Linux
+VFS module which would be used to mount this filesystem
+if you mounted it without specifying the filesystem type.
+For example a string such as C<ext3> or C<ntfs>.");
("truncate", (RErr, [Pathname "path"]), 199, [],
[InitBasicFS, Always, TestOutputStruct (
- [["write_file"; "/test"; "some stuff so size is not zero"; "0"];
+ [["write"; "/test"; "some stuff so size is not zero"];
["truncate"; "/test"];
["stat"; "/test"]], [CompareWithInt ("size", 0)])],
"truncate a file to zero size",
"truncate a file to a particular size",
"\
This command truncates C<path> to size C<size> bytes. The file
-must exist already. If the file is smaller than C<size> then
-the file is extended to the required size with null bytes.");
+must exist already.
+
+If the current file size is less than C<size> then
+the file is extended to the required size with zero bytes.
+This creates a sparse file (ie. disk blocks are not allocated
+for the file until you write to it). To create a non-sparse
+file of zeroes, use C<guestfs_fallocate64> instead.");
("utimens", (RErr, [Pathname "path"; Int64 "atsecs"; Int64 "atnsecs"; Int64 "mtsecs"; Int64 "mtnsecs"]), 201, [],
[InitBasicFS, Always, TestOutputStruct (
"create a directory with a particular mode",
"\
This command creates a directory, setting the initial permissions
-of the directory to C<mode>. See also C<guestfs_mkdir>.");
+of the directory to C<mode>.
+
+For common Linux filesystems, the actual mode which is set will
+be C<mode & ~umask & 01777>. Non-native-Linux filesystems may
+interpret the mode in other ways.
+
+See also C<guestfs_mkdir>, C<guestfs_umask>");
("lchown", (RErr, [Int "owner"; Int "group"; Pathname "path"]), 203, [],
[], (* XXX *)
On return you get a list of strings, with a one-to-one
correspondence to the C<names> list. Each string is the
-value of the symbol link.
+value of the symbolic link.
If the C<readlink(2)> operation fails on any name, then
the corresponding result string is the empty string C<\"\">.
bytes of the file, starting at C<offset>, from file C<path>.
This may read fewer bytes than requested. For further details
-see the L<pread(2)> system call.");
+see the L<pread(2)> system call.
+
+See also C<guestfs_pwrite>.");
("part_init", (RErr, [Device "device"; String "parttype"]), 208, [],
[InitEmpty, Always, TestRun (
This sets the bootable flag on partition numbered C<partnum> on
device C<device>. Note that partitions are numbered from 1.
-The bootable flag is used by some PC BIOSes to determine which
-partition to boot from. It is by no means universally recognized,
-and in any case if your operating system installed a boot
-sector on the device itself, then that takes precedence.");
+The bootable flag is used by some operating systems (notably
+Windows) to determine which partition to boot from. It is by
+no means universally recognized.");
("part_set_name", (RErr, [Device "device"; Int "partnum"; String "name"]), 212, [],
[InitEmpty, Always, TestRun (
values are possible, although unusual. See C<guestfs_part_init>
for a full list.");
- ("fill", (RErr, [Int "c"; Int "len"; Pathname "path"]), 215, [],
+ ("fill", (RErr, [Int "c"; Int "len"; Pathname "path"]), 215, [Progress],
[InitBasicFS, Always, TestOutputBuffer (
[["fill"; "0x63"; "10"; "/test"];
["read_file"; "/test"]], "cccccccccc")],
must be a number in the range C<[0..255]>.
To fill a file with zero bytes (sparsely), it is
-much more efficient to use C<guestfs_truncate_size>.");
+much more efficient to use C<guestfs_truncate_size>.
+To create a file with a pattern of repeating bytes
+use C<guestfs_fill_pattern>.");
("available", (RErr, [StringList "groups"]), 216, [],
- [],
+ [InitNone, Always, TestRun [["available"; ""]]],
"test availability of some parts of the API",
"\
This command is used to check the availability of some
-groups of libguestfs functions which not all builds of
-libguestfs will be able to provide.
+groups of functionality in the appliance, which not all builds of
+the libguestfs appliance will be able to provide.
-The precise libguestfs function groups that may be checked by this
-command are listed in L<guestfs(3)/AVAILABILITY>.
+The libguestfs groups, and the functions that those
+groups correspond to, are listed in L<guestfs(3)/AVAILABILITY>.
+You can also fetch this list at runtime by calling
+C<guestfs_available_all_groups>.
-The argument C<groups> is a list of API group names, eg:
+The argument C<groups> is a list of group names, eg:
C<[\"inotify\", \"augeas\"]> would check for the availability of
-the C<guestfs_inotify_*> functions and C<guestfs_aug_*>
-(partition editing) functions.
+the Linux inotify functions and Augeas (configuration file
+editing) functions.
The command returns no error if I<all> requested groups are available.
-It returns an error if one or more of the requested
-groups is unavailable.
+It fails with an error if one or more of the requested
+groups is unavailable in the appliance.
If an unknown group name is included in the
-list of C<groups> then an error is always returned.
+list of groups then an error is always returned.
I<Notes:>
=item *
You must call C<guestfs_launch> before calling this function.
-The reason is because we don't know what function groups are
+
+The reason is because we don't know what groups are
supported by the appliance/daemon until it is running and can
be queried.
=back");
-]
+ ("dd", (RErr, [Dev_or_Path "src"; Dev_or_Path "dest"]), 217, [],
+ [InitBasicFS, Always, TestOutputBuffer (
+ [["write"; "/src"; "hello, world"];
+ ["dd"; "/src"; "/dest"];
+ ["read_file"; "/dest"]], "hello, world")],
+ "copy from source to destination using dd",
+ "\
+This command copies from one source device or file C<src>
+to another destination device or file C<dest>. Normally you
+would use this to copy to or from a device or partition, for
+example to duplicate a filesystem.
-let all_functions = non_daemon_functions @ daemon_functions
+If the destination is a device, it must be as large or larger
+than the source file or device, otherwise the copy will fail.
+This command cannot do partial copies (see C<guestfs_copy_size>).");
-(* In some places we want the functions to be displayed sorted
- * alphabetically, so this is useful:
- *)
-let all_functions_sorted =
- List.sort (fun (n1,_,_,_,_,_,_) (n2,_,_,_,_,_,_) ->
- compare n1 n2) all_functions
+ ("filesize", (RInt64 "size", [Pathname "file"]), 218, [],
+ [InitBasicFS, Always, TestOutputInt (
+ [["write"; "/file"; "hello, world"];
+ ["filesize"; "/file"]], 12)],
+ "return the size of the file in bytes",
+ "\
+This command returns the size of C<file> in bytes.
-(* Field types for structures. *)
-type field =
- | FChar (* C 'char' (really, a 7 bit byte). *)
- | FString (* nul-terminated ASCII string, NOT NULL. *)
- | FBuffer (* opaque buffer of bytes, (char *, int) pair *)
- | FUInt32
- | FInt32
- | FUInt64
- | FInt64
- | FBytes (* Any int measure that counts bytes. *)
- | FUUID (* 32 bytes long, NOT nul-terminated. *)
- | FOptPercent (* [0..100], or -1 meaning "not present". *)
+To get other stats about a file, use C<guestfs_stat>, C<guestfs_lstat>,
+C<guestfs_is_dir>, C<guestfs_is_file> etc.
+To get the size of block devices, use C<guestfs_blockdev_getsize64>.");
-(* Because we generate extra parsing code for LVM command line tools,
- * we have to pull out the LVM columns separately here.
- *)
-let lvm_pv_cols = [
- "pv_name", FString;
- "pv_uuid", FUUID;
- "pv_fmt", FString;
- "pv_size", FBytes;
- "dev_size", FBytes;
- "pv_free", FBytes;
- "pv_used", FBytes;
- "pv_attr", FString (* XXX *);
- "pv_pe_count", FInt64;
- "pv_pe_alloc_count", FInt64;
- "pv_tags", FString;
- "pe_start", FBytes;
- "pv_mda_count", FInt64;
- "pv_mda_free", FBytes;
- (* Not in Fedora 10:
- "pv_mda_size", FBytes;
- *)
-]
-let lvm_vg_cols = [
- "vg_name", FString;
- "vg_uuid", FUUID;
- "vg_fmt", FString;
- "vg_attr", FString (* XXX *);
- "vg_size", FBytes;
- "vg_free", FBytes;
- "vg_sysid", FString;
- "vg_extent_size", FBytes;
- "vg_extent_count", FInt64;
- "vg_free_count", FInt64;
- "max_lv", FInt64;
- "max_pv", FInt64;
- "pv_count", FInt64;
- "lv_count", FInt64;
- "snap_count", FInt64;
- "vg_seqno", FInt64;
- "vg_tags", FString;
- "vg_mda_count", FInt64;
- "vg_mda_free", FBytes;
- (* Not in Fedora 10:
- "vg_mda_size", FBytes;
- *)
-]
-let lvm_lv_cols = [
- "lv_name", FString;
- "lv_uuid", FUUID;
- "lv_attr", FString (* XXX *);
- "lv_major", FInt64;
- "lv_minor", FInt64;
- "lv_kernel_major", FInt64;
- "lv_kernel_minor", FInt64;
- "lv_size", FBytes;
- "seg_count", FInt64;
- "origin", FString;
- "snap_percent", FOptPercent;
- "copy_percent", FOptPercent;
- "move_pv", FString;
- "lv_tags", FString;
- "mirror_log", FString;
- "modules", FString;
-]
+ ("lvrename", (RErr, [String "logvol"; String "newlogvol"]), 219, [],
+ [InitBasicFSonLVM, Always, TestOutputList (
+ [["lvrename"; "/dev/VG/LV"; "/dev/VG/LV2"];
+ ["lvs"]], ["/dev/VG/LV2"])],
+ "rename an LVM logical volume",
+ "\
+Rename a logical volume C<logvol> with the new name C<newlogvol>.");
-(* Names and fields in all structures (in RStruct and RStructList)
- * that we support.
- *)
-let structs = [
- (* The old RIntBool return type, only ever used for aug_defnode. Do
- * not use this struct in any new code.
- *)
- "int_bool", [
- "i", FInt32; (* for historical compatibility *)
- "b", FInt32; (* for historical compatibility *)
- ];
+ ("vgrename", (RErr, [String "volgroup"; String "newvolgroup"]), 220, [],
+ [InitBasicFSonLVM, Always, TestOutputList (
+ [["umount"; "/"];
+ ["vg_activate"; "false"; "VG"];
+ ["vgrename"; "VG"; "VG2"];
+ ["vg_activate"; "true"; "VG2"];
+ ["mount_options"; ""; "/dev/VG2/LV"; "/"];
+ ["vgs"]], ["VG2"])],
+ "rename an LVM volume group",
+ "\
+Rename a volume group C<volgroup> with the new name C<newvolgroup>.");
- (* LVM PVs, VGs, LVs. *)
- "lvm_pv", lvm_pv_cols;
- "lvm_vg", lvm_vg_cols;
- "lvm_lv", lvm_lv_cols;
+ ("initrd_cat", (RBufferOut "content", [Pathname "initrdpath"; String "filename"]), 221, [ProtocolLimitWarning],
+ [InitISOFS, Always, TestOutputBuffer (
+ [["initrd_cat"; "/initrd"; "known-4"]], "abc\ndef\nghi")],
+ "list the contents of a single file in an initrd",
+ "\
+This command unpacks the file C<filename> from the initrd file
+called C<initrdpath>. The filename must be given I<without> the
+initial C</> character.
- (* Column names and types from stat structures.
- * NB. Can't use things like 'st_atime' because glibc header files
- * define some of these as macros. Ugh.
- *)
- "stat", [
- "dev", FInt64;
- "ino", FInt64;
- "mode", FInt64;
- "nlink", FInt64;
- "uid", FInt64;
- "gid", FInt64;
- "rdev", FInt64;
- "size", FInt64;
- "blksize", FInt64;
- "blocks", FInt64;
- "atime", FInt64;
- "mtime", FInt64;
- "ctime", FInt64;
- ];
- "statvfs", [
- "bsize", FInt64;
- "frsize", FInt64;
- "blocks", FInt64;
- "bfree", FInt64;
- "bavail", FInt64;
- "files", FInt64;
- "ffree", FInt64;
- "favail", FInt64;
- "fsid", FInt64;
- "flag", FInt64;
- "namemax", FInt64;
- ];
+For example, in guestfish you could use the following command
+to examine the boot script (usually called C</init>)
+contained in a Linux initrd or initramfs image:
- (* Column names in dirent structure. *)
- "dirent", [
- "ino", FInt64;
- (* 'b' 'c' 'd' 'f' (FIFO) 'l' 'r' (regular file) 's' 'u' '?' *)
- "ftyp", FChar;
- "name", FString;
- ];
+ initrd-cat /boot/initrd-<version>.img init
- (* Version numbers. *)
- "version", [
- "major", FInt64;
- "minor", FInt64;
- "release", FInt64;
- "extra", FString;
- ];
+See also C<guestfs_initrd_list>.");
- (* Extended attribute. *)
- "xattr", [
- "attrname", FString;
- "attrval", FBuffer;
- ];
+ ("pvuuid", (RString "uuid", [Device "device"]), 222, [],
+ [],
+ "get the UUID of a physical volume",
+ "\
+This command returns the UUID of the LVM PV C<device>.");
- (* Inotify events. *)
- "inotify_event", [
- "in_wd", FInt64;
- "in_mask", FUInt32;
- "in_cookie", FUInt32;
- "in_name", FString;
- ];
+ ("vguuid", (RString "uuid", [String "vgname"]), 223, [],
+ [],
+ "get the UUID of a volume group",
+ "\
+This command returns the UUID of the LVM VG named C<vgname>.");
- (* Partition table entry. *)
- "partition", [
- "part_num", FInt32;
- "part_start", FBytes;
- "part_end", FBytes;
- "part_size", FBytes;
- ];
-] (* end of structs *)
+ ("lvuuid", (RString "uuid", [Device "device"]), 224, [],
+ [],
+ "get the UUID of a logical volume",
+ "\
+This command returns the UUID of the LVM LV C<device>.");
-(* Ugh, Java has to be different ..
- * These names are also used by the Haskell bindings.
- *)
-let java_structs = [
- "int_bool", "IntBool";
- "lvm_pv", "PV";
- "lvm_vg", "VG";
- "lvm_lv", "LV";
- "stat", "Stat";
- "statvfs", "StatVFS";
- "dirent", "Dirent";
- "version", "Version";
- "xattr", "XAttr";
- "inotify_event", "INotifyEvent";
- "partition", "Partition";
-]
+ ("vgpvuuids", (RStringList "uuids", [String "vgname"]), 225, [],
+ [],
+ "get the PV UUIDs containing the volume group",
+ "\
+Given a VG called C<vgname>, this returns the UUIDs of all
+the physical volumes that this volume group resides on.
-(* What structs are actually returned. *)
-type rstructs_used_t = RStructOnly | RStructListOnly | RStructAndList
+You can use this along with C<guestfs_pvs> and C<guestfs_pvuuid>
+calls to associate physical volumes and volume groups.
-(* Returns a list of RStruct/RStructList structs that are returned
- * by any function. Each element of returned list is a pair:
- *
- * (structname, RStructOnly)
- * == there exists function which returns RStruct (_, structname)
- * (structname, RStructListOnly)
- * == there exists function which returns RStructList (_, structname)
- * (structname, RStructAndList)
- * == there are functions returning both RStruct (_, structname)
- * and RStructList (_, structname)
- *)
-let rstructs_used_by functions =
- (* ||| is a "logical OR" for rstructs_used_t *)
- let (|||) a b =
- match a, b with
- | RStructAndList, _
- | _, RStructAndList -> RStructAndList
- | RStructOnly, RStructListOnly
- | RStructListOnly, RStructOnly -> RStructAndList
- | RStructOnly, RStructOnly -> RStructOnly
- | RStructListOnly, RStructListOnly -> RStructListOnly
- in
+See also C<guestfs_vglvuuids>.");
- let h = Hashtbl.create 13 in
+ ("vglvuuids", (RStringList "uuids", [String "vgname"]), 226, [],
+ [],
+ "get the LV UUIDs of all LVs in the volume group",
+ "\
+Given a VG called C<vgname>, this returns the UUIDs of all
+the logical volumes created in this volume group.
- (* if elem->oldv exists, update entry using ||| operator,
- * else just add elem->newv to the hash
- *)
- let update elem newv =
- try let oldv = Hashtbl.find h elem in
- Hashtbl.replace h elem (newv ||| oldv)
- with Not_found -> Hashtbl.add h elem newv
- in
+You can use this along with C<guestfs_lvs> and C<guestfs_lvuuid>
+calls to associate logical volumes and volume groups.
- List.iter (
- fun (_, style, _, _, _, _, _) ->
- match fst style with
- | RStruct (_, structname) -> update structname RStructOnly
- | RStructList (_, structname) -> update structname RStructListOnly
- | _ -> ()
- ) functions;
+See also C<guestfs_vgpvuuids>.");
- (* return key->values as a list of (key,value) *)
- Hashtbl.fold (fun key value xs -> (key, value) :: xs) h []
+ ("copy_size", (RErr, [Dev_or_Path "src"; Dev_or_Path "dest"; Int64 "size"]), 227, [Progress],
+ [InitBasicFS, Always, TestOutputBuffer (
+ [["write"; "/src"; "hello, world"];
+ ["copy_size"; "/src"; "/dest"; "5"];
+ ["read_file"; "/dest"]], "hello")],
+ "copy size bytes from source to destination using dd",
+ "\
+This command copies exactly C<size> bytes from one source device
+or file C<src> to another destination device or file C<dest>.
-(* Used for testing language bindings. *)
-type callt =
- | CallString of string
- | CallOptString of string option
- | CallStringList of string list
- | CallInt of int
- | CallInt64 of int64
- | CallBool of bool
+Note this will fail if the source is too short or if the destination
+is not large enough.");
-(* Used to memoize the result of pod2text. *)
-let pod2text_memo_filename = "src/.pod2text.data"
-let pod2text_memo : ((int * string * string), string list) Hashtbl.t =
- try
- let chan = open_in pod2text_memo_filename in
- let v = input_value chan in
- close_in chan;
- v
- with
- _ -> Hashtbl.create 13
-let pod2text_memo_updated () =
- let chan = open_out pod2text_memo_filename in
- output_value chan pod2text_memo;
- close_out chan
+ ("zero_device", (RErr, [Device "device"]), 228, [DangerWillRobinson; Progress],
+ [InitBasicFSonLVM, Always, TestRun (
+ [["zero_device"; "/dev/VG/LV"]])],
+ "write zeroes to an entire device",
+ "\
+This command writes zeroes over the entire C<device>. Compare
+with C<guestfs_zero> which just zeroes the first few blocks of
+a device.");
-(* Useful functions.
- * Note we don't want to use any external OCaml libraries which
- * makes this a bit harder than it should be.
- *)
-let failwithf fs = ksprintf failwith fs
+ ("txz_in", (RErr, [FileIn "tarball"; Pathname "directory"]), 229, [Optional "xz"],
+ [InitBasicFS, Always, TestOutput (
+ [["txz_in"; "../images/helloworld.tar.xz"; "/"];
+ ["cat"; "/hello"]], "hello\n")],
+ "unpack compressed tarball to directory",
+ "\
+This command uploads and unpacks local file C<tarball> (an
+I<xz compressed> tar file) into C<directory>.");
-let replace_char s c1 c2 =
- let s2 = String.copy s in
- let r = ref false in
- for i = 0 to String.length s2 - 1 do
- if String.unsafe_get s2 i = c1 then (
- String.unsafe_set s2 i c2;
- r := true
- )
- done;
- if not !r then s else s2
+ ("txz_out", (RErr, [Pathname "directory"; FileOut "tarball"]), 230, [Optional "xz"],
+ [],
+ "pack directory into compressed tarball",
+ "\
+This command packs the contents of C<directory> and downloads
+it to local file C<tarball> (as an xz compressed tar archive).");
-let isspace c =
- c = ' '
- (* || c = '\f' *) || c = '\n' || c = '\r' || c = '\t' (* || c = '\v' *)
+ ("ntfsresize", (RErr, [Device "device"]), 231, [Optional "ntfsprogs"],
+ [],
+ "resize an NTFS filesystem",
+ "\
+This command resizes an NTFS filesystem, expanding or
+shrinking it to the size of the underlying device.
+See also L<ntfsresize(8)>.");
-let triml ?(test = isspace) str =
- let i = ref 0 in
- let n = ref (String.length str) in
- while !n > 0 && test str.[!i]; do
- decr n;
- incr i
- done;
- if !i = 0 then str
- else String.sub str !i !n
+ ("vgscan", (RErr, []), 232, [],
+ [InitEmpty, Always, TestRun (
+ [["vgscan"]])],
+ "rescan for LVM physical volumes, volume groups and logical volumes",
+ "\
+This rescans all block devices and rebuilds the list of LVM
+physical volumes, volume groups and logical volumes.");
-let trimr ?(test = isspace) str =
- let n = ref (String.length str) in
- while !n > 0 && test str.[!n-1]; do
- decr n
- done;
- if !n = String.length str then str
- else String.sub str 0 !n
+ ("part_del", (RErr, [Device "device"; Int "partnum"]), 233, [],
+ [InitEmpty, Always, TestRun (
+ [["part_init"; "/dev/sda"; "mbr"];
+ ["part_add"; "/dev/sda"; "primary"; "1"; "-1"];
+ ["part_del"; "/dev/sda"; "1"]])],
+ "delete a partition",
+ "\
+This command deletes the partition numbered C<partnum> on C<device>.
-let trim ?(test = isspace) str =
- trimr ~test (triml ~test str)
+Note that in the case of MBR partitioning, deleting an
+extended partition also deletes any logical partitions
+it contains.");
-let rec find s sub =
- let len = String.length s in
- let sublen = String.length sub in
- let rec loop i =
- if i <= len-sublen then (
- let rec loop2 j =
- if j < sublen then (
- if s.[i+j] = sub.[j] then loop2 (j+1)
- else -1
- ) else
- i (* found *)
- in
- let r = loop2 0 in
- if r = -1 then loop (i+1) else r
- ) else
- -1 (* not found *)
- in
- loop 0
+ ("part_get_bootable", (RBool "bootable", [Device "device"; Int "partnum"]), 234, [],
+ [InitEmpty, Always, TestOutputTrue (
+ [["part_init"; "/dev/sda"; "mbr"];
+ ["part_add"; "/dev/sda"; "primary"; "1"; "-1"];
+ ["part_set_bootable"; "/dev/sda"; "1"; "true"];
+ ["part_get_bootable"; "/dev/sda"; "1"]])],
+ "return true if a partition is bootable",
+ "\
+This command returns true if the partition C<partnum> on
+C<device> has the bootable flag set.
-let rec replace_str s s1 s2 =
- let len = String.length s in
- let sublen = String.length s1 in
- let i = find s s1 in
- if i = -1 then s
- else (
- let s' = String.sub s 0 i in
- let s'' = String.sub s (i+sublen) (len-i-sublen) in
- s' ^ s2 ^ replace_str s'' s1 s2
- )
+See also C<guestfs_part_set_bootable>.");
-let rec string_split sep str =
- let len = String.length str in
- let seplen = String.length sep in
- let i = find str sep in
- if i = -1 then [str]
- else (
- let s' = String.sub str 0 i in
- let s'' = String.sub str (i+seplen) (len-i-seplen) in
- s' :: string_split sep s''
- )
+ ("part_get_mbr_id", (RInt "idbyte", [Device "device"; Int "partnum"]), 235, [FishOutput FishOutputHexadecimal],
+ [InitEmpty, Always, TestOutputInt (
+ [["part_init"; "/dev/sda"; "mbr"];
+ ["part_add"; "/dev/sda"; "primary"; "1"; "-1"];
+ ["part_set_mbr_id"; "/dev/sda"; "1"; "0x7f"];
+ ["part_get_mbr_id"; "/dev/sda"; "1"]], 0x7f)],
+ "get the MBR type byte (ID byte) from a partition",
+ "\
+Returns the MBR type byte (also known as the ID byte) from
+the numbered partition C<partnum>.
-let files_equal n1 n2 =
- let cmd = sprintf "cmp -s %s %s" (Filename.quote n1) (Filename.quote n2) in
- match Sys.command cmd with
- | 0 -> true
- | 1 -> false
- | i -> failwithf "%s: failed with error code %d" cmd i
+Note that only MBR (old DOS-style) partitions have type bytes.
+You will get undefined results for other partition table
+types (see C<guestfs_part_get_parttype>).");
-let rec filter_map f = function
- | [] -> []
- | x :: xs ->
- match f x with
- | Some y -> y :: filter_map f xs
- | None -> filter_map f xs
+ ("part_set_mbr_id", (RErr, [Device "device"; Int "partnum"; Int "idbyte"]), 236, [],
+ [], (* tested by part_get_mbr_id *)
+ "set the MBR type byte (ID byte) of a partition",
+ "\
+Sets the MBR type byte (also known as the ID byte) of
+the numbered partition C<partnum> to C<idbyte>. Note
+that the type bytes quoted in most documentation are
+in fact hexadecimal numbers, but usually documented
+without any leading \"0x\" which might be confusing.
-let rec find_map f = function
- | [] -> raise Not_found
- | x :: xs ->
- match f x with
- | Some y -> y
- | None -> find_map f xs
+Note that only MBR (old DOS-style) partitions have type bytes.
+You will get undefined results for other partition table
+types (see C<guestfs_part_get_parttype>).");
-let iteri f xs =
- let rec loop i = function
- | [] -> ()
- | x :: xs -> f i x; loop (i+1) xs
- in
- loop 0 xs
+ ("checksum_device", (RString "checksum", [String "csumtype"; Device "device"]), 237, [],
+ [InitISOFS, Always, TestOutput (
+ [["checksum_device"; "md5"; "/dev/sdd"]],
+ (Digest.to_hex (Digest.file "images/test.iso")))],
+ "compute MD5, SHAx or CRC checksum of the contents of a device",
+ "\
+This call computes the MD5, SHAx or CRC checksum of the
+contents of the device named C<device>. For the types of
+checksums supported see the C<guestfs_checksum> command.");
-let mapi f xs =
- let rec loop i = function
- | [] -> []
- | x :: xs -> let r = f i x in r :: loop (i+1) xs
- in
- loop 0 xs
+ ("lvresize_free", (RErr, [Device "lv"; Int "percent"]), 238, [Optional "lvm2"],
+ [InitNone, Always, TestRun (
+ [["part_disk"; "/dev/sda"; "mbr"];
+ ["pvcreate"; "/dev/sda1"];
+ ["vgcreate"; "VG"; "/dev/sda1"];
+ ["lvcreate"; "LV"; "VG"; "10"];
+ ["lvresize_free"; "/dev/VG/LV"; "100"]])],
+ "expand an LV to fill free space",
+ "\
+This expands an existing logical volume C<lv> so that it fills
+C<pc>% of the remaining free space in the volume group. Commonly
+you would call this with pc = 100 which expands the logical volume
+as much as possible, using all remaining free space in the volume
+group.");
-let name_of_argt = function
- | Pathname n | Device n | Dev_or_Path n | String n | OptString n
- | StringList n | DeviceList n | Bool n | Int n | Int64 n
- | FileIn n | FileOut n -> n
+ ("aug_clear", (RErr, [String "augpath"]), 239, [Optional "augeas"],
+ [], (* XXX Augeas code needs tests. *)
+ "clear Augeas path",
+ "\
+Set the value associated with C<path> to C<NULL>. This
+is the same as the L<augtool(1)> C<clear> command.");
-let java_name_of_struct typ =
- try List.assoc typ java_structs
- with Not_found ->
- failwithf
- "java_name_of_struct: no java_structs entry corresponding to %s" typ
+ ("get_umask", (RInt "mask", []), 240, [FishOutput FishOutputOctal],
+ [InitEmpty, Always, TestOutputInt (
+ [["get_umask"]], 0o22)],
+ "get the current umask",
+ "\
+Return the current umask. By default the umask is C<022>
+unless it has been set by calling C<guestfs_umask>.");
-let cols_of_struct typ =
- try List.assoc typ structs
- with Not_found ->
- failwithf "cols_of_struct: unknown struct %s" typ
+ ("debug_upload", (RErr, [FileIn "filename"; String "tmpname"; Int "mode"]), 241, [],
+ [],
+ "upload a file to the appliance (internal use only)",
+ "\
+The C<guestfs_debug_upload> command uploads a file to
+the libguestfs appliance.
-let seq_of_test = function
- | TestRun s | TestOutput (s, _) | TestOutputList (s, _)
- | TestOutputListOfDevices (s, _)
- | TestOutputInt (s, _) | TestOutputIntOp (s, _, _)
- | TestOutputTrue s | TestOutputFalse s
- | TestOutputLength (s, _) | TestOutputBuffer (s, _)
- | TestOutputStruct (s, _)
- | TestLastFail s -> s
+There is no comprehensive help for this command. You have
+to look at the file C<daemon/debug.c> in the libguestfs source
+to find out what it is for.");
-(* Handling for function flags. *)
-let protocol_limit_warning =
- "Because of the message protocol, there is a transfer limit
-of somewhere between 2MB and 4MB. To transfer large files you should use
-FTP."
+ ("base64_in", (RErr, [FileIn "base64file"; Pathname "filename"]), 242, [],
+ [InitBasicFS, Always, TestOutput (
+ [["base64_in"; "../images/hello.b64"; "/hello"];
+ ["cat"; "/hello"]], "hello\n")],
+ "upload base64-encoded data to file",
+ "\
+This command uploads base64-encoded data from C<base64file>
+to C<filename>.");
-let danger_will_robinson =
- "B<This command is dangerous. Without careful use you
-can easily destroy all your data>."
+ ("base64_out", (RErr, [Pathname "filename"; FileOut "base64file"]), 243, [],
+ [],
+ "download file and encode as base64",
+ "\
+This command downloads the contents of C<filename>, writing
+it out to local file C<base64file> encoded as base64.");
-let deprecation_notice flags =
- try
- let alt =
- find_map (function DeprecatedBy str -> Some str | _ -> None) flags in
- let txt =
- sprintf "This function is deprecated.
-In new code, use the C<%s> call instead.
+ ("checksums_out", (RErr, [String "csumtype"; Pathname "directory"; FileOut "sumsfile"]), 244, [],
+ [],
+ "compute MD5, SHAx or CRC checksum of files in a directory",
+ "\
+This command computes the checksums of all regular files in
+C<directory> and then emits a list of those checksums to
+the local output file C<sumsfile>.
-Deprecated functions will not be removed from the API, but the
-fact that they are deprecated indicates that there are problems
-with correct use of these functions." alt in
- Some txt
- with
- Not_found -> None
+This can be used for verifying the integrity of a virtual
+machine. However to be properly secure you should pay
+attention to the output of the checksum command (it uses
+the ones from GNU coreutils). In particular when the
+filename is not printable, coreutils uses a special
+backslash syntax. For more information, see the GNU
+coreutils info file.");
-(* Create list of optional groups. *)
-let optgroups =
- let h = Hashtbl.create 13 in
- List.iter (
- fun (name, _, _, flags, _, _, _) ->
- List.iter (
- function
- | Optional group ->
- let names = try Hashtbl.find h group with Not_found -> [] in
- Hashtbl.replace h group (name :: names)
- | _ -> ()
- ) flags
- ) daemon_functions;
- let groups = Hashtbl.fold (fun k _ ks -> k :: ks) h [] in
- let groups =
- List.map (
- fun group -> group, List.sort compare (Hashtbl.find h group)
- ) groups in
- List.sort (fun x y -> compare (fst x) (fst y)) groups
+ ("fill_pattern", (RErr, [String "pattern"; Int "len"; Pathname "path"]), 245, [Progress],
+ [InitBasicFS, Always, TestOutputBuffer (
+ [["fill_pattern"; "abcdefghijklmnopqrstuvwxyz"; "28"; "/test"];
+ ["read_file"; "/test"]], "abcdefghijklmnopqrstuvwxyzab")],
+ "fill a file with a repeating pattern of bytes",
+ "\
+This function is like C<guestfs_fill> except that it creates
+a new file of length C<len> containing the repeating pattern
+of bytes in C<pattern>. The pattern is truncated if necessary
+to ensure the length of the file is exactly C<len> bytes.");
-(* Check function names etc. for consistency. *)
-let check_functions () =
- let contains_uppercase str =
- let len = String.length str in
- let rec loop i =
- if i >= len then false
- else (
- let c = str.[i] in
- if c >= 'A' && c <= 'Z' then true
- else loop (i+1)
- )
- in
- loop 0
- in
+ ("write", (RErr, [Pathname "path"; BufferIn "content"]), 246, [ProtocolLimitWarning],
+ [InitBasicFS, Always, TestOutput (
+ [["write"; "/new"; "new file contents"];
+ ["cat"; "/new"]], "new file contents");
+ InitBasicFS, Always, TestOutput (
+ [["write"; "/new"; "\nnew file contents\n"];
+ ["cat"; "/new"]], "\nnew file contents\n");
+ InitBasicFS, Always, TestOutput (
+ [["write"; "/new"; "\n\n"];
+ ["cat"; "/new"]], "\n\n");
+ InitBasicFS, Always, TestOutput (
+ [["write"; "/new"; ""];
+ ["cat"; "/new"]], "");
+ InitBasicFS, Always, TestOutput (
+ [["write"; "/new"; "\n\n\n"];
+ ["cat"; "/new"]], "\n\n\n");
+ InitBasicFS, Always, TestOutput (
+ [["write"; "/new"; "\n"];
+ ["cat"; "/new"]], "\n")],
+ "create a new file",
+ "\
+This call creates a file called C<path>. The content of the
+file is the string C<content> (which can contain any 8 bit data).");
- (* Check function names. *)
- List.iter (
- fun (name, _, _, _, _, _, _) ->
- if String.length name >= 7 && String.sub name 0 7 = "guestfs" then
- failwithf "function name %s does not need 'guestfs' prefix" name;
- if name = "" then
- failwithf "function name is empty";
- if name.[0] < 'a' || name.[0] > 'z' then
- failwithf "function name %s must start with lowercase a-z" name;
- if String.contains name '-' then
- failwithf "function name %s should not contain '-', use '_' instead."
- name
- ) all_functions;
+ ("pwrite", (RInt "nbytes", [Pathname "path"; BufferIn "content"; Int64 "offset"]), 247, [ProtocolLimitWarning],
+ [InitBasicFS, Always, TestOutput (
+ [["write"; "/new"; "new file contents"];
+ ["pwrite"; "/new"; "data"; "4"];
+ ["cat"; "/new"]], "new data contents");
+ InitBasicFS, Always, TestOutput (
+ [["write"; "/new"; "new file contents"];
+ ["pwrite"; "/new"; "is extended"; "9"];
+ ["cat"; "/new"]], "new file is extended");
+ InitBasicFS, Always, TestOutput (
+ [["write"; "/new"; "new file contents"];
+ ["pwrite"; "/new"; ""; "4"];
+ ["cat"; "/new"]], "new file contents")],
+ "write to part of a file",
+ "\
+This command writes to part of a file. It writes the data
+buffer C<content> to the file C<path> starting at offset C<offset>.
- (* Check function parameter/return names. *)
- List.iter (
- fun (name, style, _, _, _, _, _) ->
- let check_arg_ret_name n =
- if contains_uppercase n then
- failwithf "%s param/ret %s should not contain uppercase chars"
- name n;
- if String.contains n '-' || String.contains n '_' then
- failwithf "%s param/ret %s should not contain '-' or '_'"
- name n;
- if n = "value" then
- failwithf "%s has a param/ret called 'value', which causes conflicts in the OCaml bindings, use something like 'val' or a more descriptive name" name;
- if n = "int" || n = "char" || n = "short" || n = "long" then
- failwithf "%s has a param/ret which conflicts with a C type (eg. 'int', 'char' etc.)" name;
- if n = "i" || n = "n" then
- failwithf "%s has a param/ret called 'i' or 'n', which will cause some conflicts in the generated code" name;
- if n = "argv" || n = "args" then
- failwithf "%s has a param/ret called 'argv' or 'args', which will cause some conflicts in the generated code" name;
+This command implements the L<pwrite(2)> system call, and like
+that system call it may not write the full data requested. The
+return value is the number of bytes that were actually written
+to the file. This could even be 0, although short writes are
+unlikely for regular files in ordinary circumstances.
- (* List Haskell, OCaml and C keywords here.
- * http://www.haskell.org/haskellwiki/Keywords
- * http://caml.inria.fr/pub/docs/manual-ocaml/lex.html#operator-char
- * http://en.wikipedia.org/wiki/C_syntax#Reserved_keywords
- * Formatted via: cat c haskell ocaml|sort -u|grep -vE '_|^val$' \
- * |perl -pe 's/(.+)/"$1";/'|fmt -70
- * Omitting _-containing words, since they're handled above.
- * Omitting the OCaml reserved word, "val", is ok,
- * and saves us from renaming several parameters.
- *)
- let reserved = [
- "and"; "as"; "asr"; "assert"; "auto"; "begin"; "break"; "case";
- "char"; "class"; "const"; "constraint"; "continue"; "data";
- "default"; "deriving"; "do"; "done"; "double"; "downto"; "else";
- "end"; "enum"; "exception"; "extern"; "external"; "false"; "float";
- "for"; "forall"; "foreign"; "fun"; "function"; "functor"; "goto";
- "hiding"; "if"; "import"; "in"; "include"; "infix"; "infixl";
- "infixr"; "inherit"; "initializer"; "inline"; "instance"; "int";
- "land"; "lazy"; "let"; "long"; "lor"; "lsl"; "lsr"; "lxor";
- "match"; "mdo"; "method"; "mod"; "module"; "mutable"; "new";
- "newtype"; "object"; "of"; "open"; "or"; "private"; "qualified";
- "rec"; "register"; "restrict"; "return"; "short"; "sig"; "signed";
- "sizeof"; "static"; "struct"; "switch"; "then"; "to"; "true"; "try";
- "type"; "typedef"; "union"; "unsigned"; "virtual"; "void";
- "volatile"; "when"; "where"; "while";
- ] in
- if List.mem n reserved then
- failwithf "%s has param/ret using reserved word %s" name n;
- in
+See also C<guestfs_pread>.");
- (match fst style with
- | RErr -> ()
- | RInt n | RInt64 n | RBool n
- | RConstString n | RConstOptString n | RString n
- | RStringList n | RStruct (n, _) | RStructList (n, _)
- | RHashtable n | RBufferOut n ->
- check_arg_ret_name n
- );
- List.iter (fun arg -> check_arg_ret_name (name_of_argt arg)) (snd style)
- ) all_functions;
+ ("resize2fs_size", (RErr, [Device "device"; Int64 "size"]), 248, [],
+ [],
+ "resize an ext2, ext3 or ext4 filesystem (with size)",
+ "\
+This command is the same as C<guestfs_resize2fs> except that it
+allows you to specify the new size (in bytes) explicitly.");
- (* Check short descriptions. *)
- List.iter (
- fun (name, _, _, _, _, shortdesc, _) ->
- if shortdesc.[0] <> Char.lowercase shortdesc.[0] then
- failwithf "short description of %s should begin with lowercase." name;
- let c = shortdesc.[String.length shortdesc-1] in
- if c = '\n' || c = '.' then
- failwithf "short description of %s should not end with . or \\n." name
- ) all_functions;
+ ("pvresize_size", (RErr, [Device "device"; Int64 "size"]), 249, [Optional "lvm2"],
+ [],
+ "resize an LVM physical volume (with size)",
+ "\
+This command is the same as C<guestfs_pvresize> except that it
+allows you to specify the new size (in bytes) explicitly.");
- (* Check long dscriptions. *)
- List.iter (
- fun (name, _, _, _, _, _, longdesc) ->
- if longdesc.[String.length longdesc-1] = '\n' then
- failwithf "long description of %s should not end with \\n." name
- ) all_functions;
+ ("ntfsresize_size", (RErr, [Device "device"; Int64 "size"]), 250, [Optional "ntfsprogs"],
+ [],
+ "resize an NTFS filesystem (with size)",
+ "\
+This command is the same as C<guestfs_ntfsresize> except that it
+allows you to specify the new size (in bytes) explicitly.");
- (* Check proc_nrs. *)
- List.iter (
- fun (name, _, proc_nr, _, _, _, _) ->
- if proc_nr <= 0 then
- failwithf "daemon function %s should have proc_nr > 0" name
- ) daemon_functions;
+ ("available_all_groups", (RStringList "groups", []), 251, [],
+ [InitNone, Always, TestRun [["available_all_groups"]]],
+ "return a list of all optional groups",
+ "\
+This command returns a list of all optional groups that this
+daemon knows about. Note this returns both supported and unsupported
+groups. To find out which ones the daemon can actually support
+you have to call C<guestfs_available> on each member of the
+returned list.
- List.iter (
- fun (name, _, proc_nr, _, _, _, _) ->
- if proc_nr <> -1 then
- failwithf "non-daemon function %s should have proc_nr -1" name
- ) non_daemon_functions;
+See also C<guestfs_available> and L<guestfs(3)/AVAILABILITY>.");
- let proc_nrs =
- List.map (fun (name, _, proc_nr, _, _, _, _) -> name, proc_nr)
- daemon_functions in
- let proc_nrs =
- List.sort (fun (_,nr1) (_,nr2) -> compare nr1 nr2) proc_nrs in
- let rec loop = function
- | [] -> ()
- | [_] -> ()
- | (name1,nr1) :: ((name2,nr2) :: _ as rest) when nr1 < nr2 ->
- loop rest
- | (name1,nr1) :: (name2,nr2) :: _ ->
- failwithf "%s and %s have conflicting procedure numbers (%d, %d)"
- name1 name2 nr1 nr2
- in
- loop proc_nrs;
+ ("fallocate64", (RErr, [Pathname "path"; Int64 "len"]), 252, [],
+ [InitBasicFS, Always, TestOutputStruct (
+ [["fallocate64"; "/a"; "1000000"];
+ ["stat"; "/a"]], [CompareWithInt ("size", 1_000_000)])],
+ "preallocate a file in the guest filesystem",
+ "\
+This command preallocates a file (containing zero bytes) named
+C<path> of size C<len> bytes. If the file exists already, it
+is overwritten.
- (* Check tests. *)
- List.iter (
- function
- (* Ignore functions that have no tests. We generate a
- * warning when the user does 'make check' instead.
- *)
- | name, _, _, _, [], _, _ -> ()
- | name, _, _, _, tests, _, _ ->
- let funcs =
- List.map (
- fun (_, _, test) ->
- match seq_of_test test with
- | [] ->
- failwithf "%s has a test containing an empty sequence" name
- | cmds -> List.map List.hd cmds
- ) tests in
- let funcs = List.flatten funcs in
+Note that this call allocates disk blocks for the file.
+To create a sparse file use C<guestfs_truncate_size> instead.
- let tested = List.mem name funcs in
+The deprecated call C<guestfs_fallocate> does the same,
+but owing to an oversight it only allowed 30 bit lengths
+to be specified, effectively limiting the maximum size
+of files created through that call to 1GB.
- if not tested then
- failwithf "function %s has tests but does not test itself" name
- ) all_functions
+Do not confuse this with the guestfish-specific
+C<alloc> and C<sparse> commands which create
+a file in the host and attach it as a device.");
-(* 'pr' prints to the current output file. *)
-let chan = ref Pervasives.stdout
-let pr fs = ksprintf (output_string !chan) fs
+ ("vfs_label", (RString "label", [Device "device"]), 253, [],
+ [InitBasicFS, Always, TestOutput (
+ [["set_e2label"; "/dev/sda1"; "LTEST"];
+ ["vfs_label"; "/dev/sda1"]], "LTEST")],
+ "get the filesystem label",
+ "\
+This returns the filesystem label of the filesystem on
+C<device>.
-(* Generate a header block in a number of standard styles. *)
-type comment_style = CStyle | HashStyle | OCamlStyle | HaskellStyle
-type license = GPLv2 | LGPLv2
+If the filesystem is unlabeled, this returns the empty string.
-let generate_header comment license =
- let c = match comment with
- | CStyle -> pr "/* "; " *"
- | HashStyle -> pr "# "; "#"
- | OCamlStyle -> pr "(* "; " *"
- | HaskellStyle -> pr "{- "; " " in
- pr "libguestfs generated file\n";
- pr "%s WARNING: THIS FILE IS GENERATED BY 'src/generator.ml'.\n" c;
- pr "%s ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST.\n" c;
- pr "%s\n" c;
- pr "%s Copyright (C) 2009 Red Hat Inc.\n" c;
- pr "%s\n" c;
- (match license with
- | GPLv2 ->
- pr "%s This program is free software; you can redistribute it and/or modify\n" c;
- pr "%s it under the terms of the GNU General Public License as published by\n" c;
- pr "%s the Free Software Foundation; either version 2 of the License, or\n" c;
- pr "%s (at your option) any later version.\n" c;
- pr "%s\n" c;
- pr "%s This program is distributed in the hope that it will be useful,\n" c;
- pr "%s but WITHOUT ANY WARRANTY; without even the implied warranty of\n" c;
- pr "%s MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" c;
- pr "%s GNU General Public License for more details.\n" c;
- pr "%s\n" c;
- pr "%s You should have received a copy of the GNU General Public License along\n" c;
- pr "%s with this program; if not, write to the Free Software Foundation, Inc.,\n" c;
- pr "%s 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\n" c;
+To find a filesystem from the label, use C<guestfs_findfs_label>.");
- | LGPLv2 ->
- pr "%s This library is free software; you can redistribute it and/or\n" c;
- pr "%s modify it under the terms of the GNU Lesser General Public\n" c;
- pr "%s License as published by the Free Software Foundation; either\n" c;
- pr "%s version 2 of the License, or (at your option) any later version.\n" c;
- pr "%s\n" c;
- pr "%s This library is distributed in the hope that it will be useful,\n" c;
- pr "%s but WITHOUT ANY WARRANTY; without even the implied warranty of\n" c;
- pr "%s MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n" c;
- pr "%s Lesser General Public License for more details.\n" c;
- pr "%s\n" c;
- pr "%s You should have received a copy of the GNU Lesser General Public\n" c;
- pr "%s License along with this library; if not, write to the Free Software\n" c;
- pr "%s Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n" c;
- );
- (match comment with
- | CStyle -> pr " */\n"
- | HashStyle -> ()
- | OCamlStyle -> pr " *)\n"
- | HaskellStyle -> pr "-}\n"
- );
- pr "\n"
+ ("vfs_uuid", (RString "uuid", [Device "device"]), 254, [],
+ (let uuid = uuidgen () in
+ [InitBasicFS, Always, TestOutput (
+ [["set_e2uuid"; "/dev/sda1"; uuid];
+ ["vfs_uuid"; "/dev/sda1"]], uuid)]),
+ "get the filesystem UUID",
+ "\
+This returns the filesystem UUID of the filesystem on
+C<device>.
-(* Start of main code generation functions below this line. *)
+If the filesystem does not have a UUID, this returns the empty string.
-(* Generate the pod documentation for the C API. *)
-let rec generate_actions_pod () =
- List.iter (
- fun (shortname, style, _, flags, _, _, longdesc) ->
- if not (List.mem NotInDocs flags) then (
- let name = "guestfs_" ^ shortname in
- pr "=head2 %s\n\n" name;
- pr " ";
- generate_prototype ~extern:false ~handle:"handle" name style;
- pr "\n\n";
- pr "%s\n\n" longdesc;
- (match fst style with
- | RErr ->
- pr "This function returns 0 on success or -1 on error.\n\n"
- | RInt _ ->
- pr "On error this function returns -1.\n\n"
- | RInt64 _ ->
- pr "On error this function returns -1.\n\n"
- | RBool _ ->
- pr "This function returns a C truth value on success or -1 on error.\n\n"
- | RConstString _ ->
- pr "This function returns a string, or NULL on error.
-The string is owned by the guest handle and must I<not> be freed.\n\n"
- | RConstOptString _ ->
- pr "This function returns a string which may be NULL.
-There is way to return an error from this function.
-The string is owned by the guest handle and must I<not> be freed.\n\n"
- | RString _ ->
- pr "This function returns a string, or NULL on error.
-I<The caller must free the returned string after use>.\n\n"
- | RStringList _ ->
- pr "This function returns a NULL-terminated array of strings
-(like L<environ(3)>), or NULL if there was an error.
-I<The caller must free the strings and the array after use>.\n\n"
- | RStruct (_, typ) ->
- pr "This function returns a C<struct guestfs_%s *>,
-or NULL if there was an error.
-I<The caller must call C<guestfs_free_%s> after use>.\n\n" typ typ
- | RStructList (_, typ) ->
- pr "This function returns a C<struct guestfs_%s_list *>
-(see E<lt>guestfs-structs.hE<gt>),
-or NULL if there was an error.
-I<The caller must call C<guestfs_free_%s_list> after use>.\n\n" typ typ
- | RHashtable _ ->
- pr "This function returns a NULL-terminated array of
-strings, or NULL if there was an error.
-The array of strings will always have length C<2n+1>, where
-C<n> keys and values alternate, followed by the trailing NULL entry.
-I<The caller must free the strings and the array after use>.\n\n"
- | RBufferOut _ ->
- pr "This function returns a buffer, or NULL on error.
-The size of the returned buffer is written to C<*size_r>.
-I<The caller must free the returned buffer after use>.\n\n"
- );
- if List.mem ProtocolLimitWarning flags then
- pr "%s\n\n" protocol_limit_warning;
- if List.mem DangerWillRobinson flags then
- pr "%s\n\n" danger_will_robinson;
- match deprecation_notice flags with
- | None -> ()
- | Some txt -> pr "%s\n\n" txt
- )
- ) all_functions_sorted
+To find a filesystem from the UUID, use C<guestfs_findfs_uuid>.");
-and generate_structs_pod () =
- (* Structs documentation. *)
- List.iter (
- fun (typ, cols) ->
- pr "=head2 guestfs_%s\n" typ;
- pr "\n";
- pr " struct guestfs_%s {\n" typ;
- List.iter (
- function
- | name, FChar -> pr " char %s;\n" name
- | name, FUInt32 -> pr " uint32_t %s;\n" name
- | name, FInt32 -> pr " int32_t %s;\n" name
- | name, (FUInt64|FBytes) -> pr " uint64_t %s;\n" name
- | name, FInt64 -> pr " int64_t %s;\n" name
- | name, FString -> pr " char *%s;\n" name
- | name, FBuffer ->
- pr " /* The next two fields describe a byte array. */\n";
- pr " uint32_t %s_len;\n" name;
- pr " char *%s;\n" name
- | name, FUUID ->
- pr " /* The next field is NOT nul-terminated, be careful when printing it: */\n";
- pr " char %s[32];\n" name
- | name, FOptPercent ->
- pr " /* The next field is [0..100] or -1 meaning 'not present': */\n";
- pr " float %s;\n" name
- ) cols;
- pr " };\n";
- pr " \n";
- pr " struct guestfs_%s_list {\n" typ;
- pr " uint32_t len; /* Number of elements in list. */\n";
- pr " struct guestfs_%s *val; /* Elements. */\n" typ;
- pr " };\n";
- pr " \n";
- pr " void guestfs_free_%s (struct guestfs_free_%s *);\n" typ typ;
- pr " void guestfs_free_%s_list (struct guestfs_free_%s_list *);\n"
- typ typ;
- pr "\n"
- ) structs
+ ("lvm_set_filter", (RErr, [DeviceList "devices"]), 255, [Optional "lvm2"],
+ (* Can't be tested with the current framework because
+ * the VG is being used by the mounted filesystem, so
+ * the vgchange -an command we do first will fail.
+ *)
+ [],
+ "set LVM device filter",
+ "\
+This sets the LVM device filter so that LVM will only be
+able to \"see\" the block devices in the list C<devices>,
+and will ignore all other attached block devices.
-and generate_availability_pod () =
- (* Availability documentation. *)
- pr "=over 4\n";
- pr "\n";
- List.iter (
- fun (group, functions) ->
- pr "=item B<%s>\n" group;
- pr "\n";
- pr "The following functions:\n";
- List.iter (pr "L</guestfs_%s>\n") functions;
- pr "\n"
- ) optgroups;
- pr "=back\n";
- pr "\n"
+Where disk image(s) contain duplicate PVs or VGs, this
+command is useful to get LVM to ignore the duplicates, otherwise
+LVM can get confused. Note also there are two types
+of duplication possible: either cloned PVs/VGs which have
+identical UUIDs; or VGs that are not cloned but just happen
+to have the same name. In normal operation you cannot
+create this situation, but you can do it outside LVM, eg.
+by cloning disk images or by bit twiddling inside the LVM
+metadata.
-(* Generate the protocol (XDR) file, 'guestfs_protocol.x' and
- * indirectly 'guestfs_protocol.h' and 'guestfs_protocol.c'.
- *
- * We have to use an underscore instead of a dash because otherwise
- * rpcgen generates incorrect code.
- *
- * This header is NOT exported to clients, but see also generate_structs_h.
- *)
-and generate_xdr () =
- generate_header CStyle LGPLv2;
+This command also clears the LVM cache and performs a volume
+group scan.
- (* This has to be defined to get around a limitation in Sun's rpcgen. *)
- pr "typedef string str<>;\n";
- pr "\n";
+You can filter whole block devices or individual partitions.
- (* Internal structures. *)
- List.iter (
- function
- | typ, cols ->
- pr "struct guestfs_int_%s {\n" typ;
- List.iter (function
- | name, FChar -> pr " char %s;\n" name
- | name, FString -> pr " string %s<>;\n" name
- | name, FBuffer -> pr " opaque %s<>;\n" name
- | name, FUUID -> pr " opaque %s[32];\n" name
- | name, (FInt32|FUInt32) -> pr " int %s;\n" name
- | name, (FInt64|FUInt64|FBytes) -> pr " hyper %s;\n" name
- | name, FOptPercent -> pr " float %s;\n" name
- ) cols;
- pr "};\n";
- pr "\n";
- pr "typedef struct guestfs_int_%s guestfs_int_%s_list<>;\n" typ typ;
- pr "\n";
- ) structs;
+You cannot use this if any VG is currently in use (eg.
+contains a mounted filesystem), even if you are not
+filtering out that VG.");
- List.iter (
- fun (shortname, style, _, _, _, _, _) ->
- let name = "guestfs_" ^ shortname in
+ ("lvm_clear_filter", (RErr, []), 256, [],
+ [], (* see note on lvm_set_filter *)
+ "clear LVM device filter",
+ "\
+This undoes the effect of C<guestfs_lvm_set_filter>. LVM
+will be able to see every block device.
- (match snd style with
- | [] -> ()
- | args ->
- pr "struct %s_args {\n" name;
- List.iter (
- function
- | Pathname n | Device n | Dev_or_Path n | String n ->
- pr " string %s<>;\n" n
- | OptString n -> pr " str *%s;\n" n
- | StringList n | DeviceList n -> pr " str %s<>;\n" n
- | Bool n -> pr " bool %s;\n" n
- | Int n -> pr " int %s;\n" n
- | Int64 n -> pr " hyper %s;\n" n
- | FileIn _ | FileOut _ -> ()
- ) args;
- pr "};\n\n"
- );
- (match fst style with
- | RErr -> ()
- | RInt n ->
- pr "struct %s_ret {\n" name;
- pr " int %s;\n" n;
- pr "};\n\n"
- | RInt64 n ->
- pr "struct %s_ret {\n" name;
- pr " hyper %s;\n" n;
- pr "};\n\n"
- | RBool n ->
- pr "struct %s_ret {\n" name;
- pr " bool %s;\n" n;
- pr "};\n\n"
- | RConstString _ | RConstOptString _ ->
- failwithf "RConstString|RConstOptString cannot be used by daemon functions"
- | RString n ->
- pr "struct %s_ret {\n" name;
- pr " string %s<>;\n" n;
- pr "};\n\n"
- | RStringList n ->
- pr "struct %s_ret {\n" name;
- pr " str %s<>;\n" n;
- pr "};\n\n"
- | RStruct (n, typ) ->
- pr "struct %s_ret {\n" name;
- pr " guestfs_int_%s %s;\n" typ n;
- pr "};\n\n"
- | RStructList (n, typ) ->
- pr "struct %s_ret {\n" name;
- pr " guestfs_int_%s_list %s;\n" typ n;
- pr "};\n\n"
- | RHashtable n ->
- pr "struct %s_ret {\n" name;
- pr " str %s<>;\n" n;
- pr "};\n\n"
- | RBufferOut n ->
- pr "struct %s_ret {\n" name;
- pr " opaque %s<>;\n" n;
- pr "};\n\n"
- );
- ) daemon_functions;
+This command also clears the LVM cache and performs a volume
+group scan.");
- (* Table of procedure numbers. *)
- pr "enum guestfs_procedure {\n";
- List.iter (
- fun (shortname, _, proc_nr, _, _, _, _) ->
- pr " GUESTFS_PROC_%s = %d,\n" (String.uppercase shortname) proc_nr
- ) daemon_functions;
- pr " GUESTFS_PROC_NR_PROCS\n";
- pr "};\n";
- pr "\n";
+ ("luks_open", (RErr, [Device "device"; Key "key"; String "mapname"]), 257, [Optional "luks"],
+ [],
+ "open a LUKS-encrypted block device",
+ "\
+This command opens a block device which has been encrypted
+according to the Linux Unified Key Setup (LUKS) standard.
- (* Having to choose a maximum message size is annoying for several
- * reasons (it limits what we can do in the API), but it (a) makes
- * the protocol a lot simpler, and (b) provides a bound on the size
- * of the daemon which operates in limited memory space. For large
- * file transfers you should use FTP.
- *)
- pr "const GUESTFS_MESSAGE_MAX = %d;\n" (4 * 1024 * 1024);
- pr "\n";
+C<device> is the encrypted block device or partition.
- (* Message header, etc. *)
- pr "\
-/* The communication protocol is now documented in the guestfs(3)
- * manpage.
- */
+The caller must supply one of the keys associated with the
+LUKS block device, in the C<key> parameter.
-const GUESTFS_PROGRAM = 0x2000F5F5;
-const GUESTFS_PROTOCOL_VERSION = 1;
+This creates a new block device called C</dev/mapper/mapname>.
+Reads and writes to this block device are decrypted from and
+encrypted to the underlying C<device> respectively.
-/* These constants must be larger than any possible message length. */
-const GUESTFS_LAUNCH_FLAG = 0xf5f55ff5;
-const GUESTFS_CANCEL_FLAG = 0xffffeeee;
+If this block device contains LVM volume groups, then
+calling C<guestfs_vgscan> followed by C<guestfs_vg_activate_all>
+will make them visible.");
-enum guestfs_message_direction {
- GUESTFS_DIRECTION_CALL = 0, /* client -> daemon */
- GUESTFS_DIRECTION_REPLY = 1 /* daemon -> client */
-};
+ ("luks_open_ro", (RErr, [Device "device"; Key "key"; String "mapname"]), 258, [Optional "luks"],
+ [],
+ "open a LUKS-encrypted block device read-only",
+ "\
+This is the same as C<guestfs_luks_open> except that a read-only
+mapping is created.");
-enum guestfs_message_status {
- GUESTFS_STATUS_OK = 0,
- GUESTFS_STATUS_ERROR = 1
-};
+ ("luks_close", (RErr, [Device "device"]), 259, [Optional "luks"],
+ [],
+ "close a LUKS device",
+ "\
+This closes a LUKS device that was created earlier by
+C<guestfs_luks_open> or C<guestfs_luks_open_ro>. The
+C<device> parameter must be the name of the LUKS mapping
+device (ie. C</dev/mapper/mapname>) and I<not> the name
+of the underlying block device.");
-const GUESTFS_ERROR_LEN = 256;
+ ("luks_format", (RErr, [Device "device"; Key "key"; Int "keyslot"]), 260, [Optional "luks"; DangerWillRobinson],
+ [],
+ "format a block device as a LUKS encrypted device",
+ "\
+This command erases existing data on C<device> and formats
+the device as a LUKS encrypted device. C<key> is the
+initial key, which is added to key slot C<slot>. (LUKS
+supports 8 key slots, numbered 0-7).");
-struct guestfs_message_error {
- string error_message<GUESTFS_ERROR_LEN>;
-};
+ ("luks_format_cipher", (RErr, [Device "device"; Key "key"; Int "keyslot"; String "cipher"]), 261, [Optional "luks"; DangerWillRobinson],
+ [],
+ "format a block device as a LUKS encrypted device",
+ "\
+This command is the same as C<guestfs_luks_format> but
+it also allows you to set the C<cipher> used.");
-struct guestfs_message_header {
- unsigned prog; /* GUESTFS_PROGRAM */
- unsigned vers; /* GUESTFS_PROTOCOL_VERSION */
- guestfs_procedure proc; /* GUESTFS_PROC_x */
- guestfs_message_direction direction;
- unsigned serial; /* message serial number */
- guestfs_message_status status;
-};
+ ("luks_add_key", (RErr, [Device "device"; Key "key"; Key "newkey"; Int "keyslot"]), 262, [Optional "luks"],
+ [],
+ "add a key on a LUKS encrypted device",
+ "\
+This command adds a new key on LUKS device C<device>.
+C<key> is any existing key, and is used to access the device.
+C<newkey> is the new key to add. C<keyslot> is the key slot
+that will be replaced.
-const GUESTFS_MAX_CHUNK_SIZE = 8192;
+Note that if C<keyslot> already contains a key, then this
+command will fail. You have to use C<guestfs_luks_kill_slot>
+first to remove that key.");
-struct guestfs_chunk {
- int cancel; /* if non-zero, transfer is cancelled */
- /* data size is 0 bytes if the transfer has finished successfully */
- opaque data<GUESTFS_MAX_CHUNK_SIZE>;
-};
-"
+ ("luks_kill_slot", (RErr, [Device "device"; Key "key"; Int "keyslot"]), 263, [Optional "luks"],
+ [],
+ "remove a key from a LUKS encrypted device",
+ "\
+This command deletes the key in key slot C<keyslot> from the
+encrypted LUKS device C<device>. C<key> must be one of the
+I<other> keys.");
-(* Generate the guestfs-structs.h file. *)
-and generate_structs_h () =
- generate_header CStyle LGPLv2;
+ ("is_lv", (RBool "lvflag", [Device "device"]), 264, [Optional "lvm2"],
+ [InitBasicFSonLVM, IfAvailable "lvm2", TestOutputTrue (
+ [["is_lv"; "/dev/VG/LV"]]);
+ InitBasicFSonLVM, IfAvailable "lvm2", TestOutputFalse (
+ [["is_lv"; "/dev/sda1"]])],
+ "test if device is a logical volume",
+ "\
+This command tests whether C<device> is a logical volume, and
+returns true iff this is the case.");
- (* This is a public exported header file containing various
- * structures. The structures are carefully written to have
- * exactly the same in-memory format as the XDR structures that
- * we use on the wire to the daemon. The reason for creating
- * copies of these structures here is just so we don't have to
- * export the whole of guestfs_protocol.h (which includes much
- * unrelated and XDR-dependent stuff that we don't want to be
- * public, or required by clients).
- *
- * To reiterate, we will pass these structures to and from the
- * client with a simple assignment or memcpy, so the format
- * must be identical to what rpcgen / the RFC defines.
- *)
-
- (* Public structures. *)
- List.iter (
- fun (typ, cols) ->
- pr "struct guestfs_%s {\n" typ;
- List.iter (
- function
- | name, FChar -> pr " char %s;\n" name
- | name, FString -> pr " char *%s;\n" name
- | name, FBuffer ->
- pr " uint32_t %s_len;\n" name;
- pr " char *%s;\n" name
- | name, FUUID -> pr " char %s[32]; /* this is NOT nul-terminated, be careful when printing */\n" name
- | name, FUInt32 -> pr " uint32_t %s;\n" name
- | name, FInt32 -> pr " int32_t %s;\n" name
- | name, (FUInt64|FBytes) -> pr " uint64_t %s;\n" name
- | name, FInt64 -> pr " int64_t %s;\n" name
- | name, FOptPercent -> pr " float %s; /* [0..100] or -1 */\n" name
- ) cols;
- pr "};\n";
- pr "\n";
- pr "struct guestfs_%s_list {\n" typ;
- pr " uint32_t len;\n";
- pr " struct guestfs_%s *val;\n" typ;
- pr "};\n";
- pr "\n";
- pr "extern void guestfs_free_%s (struct guestfs_%s *);\n" typ typ;
- pr "extern void guestfs_free_%s_list (struct guestfs_%s_list *);\n" typ typ;
- pr "\n"
- ) structs
-
-(* Generate the guestfs-actions.h file. *)
-and generate_actions_h () =
- generate_header CStyle LGPLv2;
- List.iter (
- fun (shortname, style, _, _, _, _, _) ->
- let name = "guestfs_" ^ shortname in
- generate_prototype ~single_line:true ~newline:true ~handle:"handle"
- name style
- ) all_functions
-
-(* Generate the guestfs-internal-actions.h file. *)
-and generate_internal_actions_h () =
- generate_header CStyle LGPLv2;
- List.iter (
- fun (shortname, style, _, _, _, _, _) ->
- let name = "guestfs__" ^ shortname in
- generate_prototype ~single_line:true ~newline:true ~handle:"handle"
- name style
- ) non_daemon_functions
-
-(* Generate the client-side dispatch stubs. *)
-and generate_client_actions () =
- generate_header CStyle LGPLv2;
-
- pr "\
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <inttypes.h>
+ ("findfs_uuid", (RString "device", [String "uuid"]), 265, [],
+ [],
+ "find a filesystem by UUID",
+ "\
+This command searches the filesystems and returns the one
+which has the given UUID. An error is returned if no such
+filesystem can be found.
-#include \"guestfs.h\"
-#include \"guestfs-internal.h\"
-#include \"guestfs-internal-actions.h\"
-#include \"guestfs_protocol.h\"
+To find the UUID of a filesystem, use C<guestfs_vfs_uuid>.");
-#define error guestfs_error
-//#define perrorf guestfs_perrorf
-#define safe_malloc guestfs_safe_malloc
-#define safe_realloc guestfs_safe_realloc
-//#define safe_strdup guestfs_safe_strdup
-#define safe_memdup guestfs_safe_memdup
+ ("findfs_label", (RString "device", [String "label"]), 266, [],
+ [],
+ "find a filesystem by label",
+ "\
+This command searches the filesystems and returns the one
+which has the given label. An error is returned if no such
+filesystem can be found.
-/* Check the return message from a call for validity. */
-static int
-check_reply_header (guestfs_h *g,
- const struct guestfs_message_header *hdr,
- unsigned int proc_nr, unsigned int serial)
-{
- if (hdr->prog != GUESTFS_PROGRAM) {
- error (g, \"wrong program (%%d/%%d)\", hdr->prog, GUESTFS_PROGRAM);
- return -1;
- }
- if (hdr->vers != GUESTFS_PROTOCOL_VERSION) {
- error (g, \"wrong protocol version (%%d/%%d)\",
- hdr->vers, GUESTFS_PROTOCOL_VERSION);
- return -1;
- }
- if (hdr->direction != GUESTFS_DIRECTION_REPLY) {
- error (g, \"unexpected message direction (%%d/%%d)\",
- hdr->direction, GUESTFS_DIRECTION_REPLY);
- return -1;
- }
- if (hdr->proc != proc_nr) {
- error (g, \"unexpected procedure number (%%d/%%d)\", hdr->proc, proc_nr);
- return -1;
- }
- if (hdr->serial != serial) {
- error (g, \"unexpected serial (%%d/%%d)\", hdr->serial, serial);
- return -1;
- }
+To find the label of a filesystem, use C<guestfs_vfs_label>.");
- return 0;
-}
+ ("is_chardev", (RBool "flag", [Pathname "path"]), 267, [],
+ [InitISOFS, Always, TestOutputFalse (
+ [["is_chardev"; "/directory"]]);
+ InitBasicFS, Always, TestOutputTrue (
+ [["mknod_c"; "0o777"; "99"; "66"; "/test"];
+ ["is_chardev"; "/test"]])],
+ "test if character device",
+ "\
+This returns C<true> if and only if there is a character device
+with the given C<path> name.
-/* Check we are in the right state to run a high-level action. */
-static int
-check_state (guestfs_h *g, const char *caller)
-{
- if (!guestfs__is_ready (g)) {
- if (guestfs__is_config (g) || guestfs__is_launching (g))
- error (g, \"%%s: call launch before using this function\\n(in guestfish, don't forget to use the 'run' command)\",
- caller);
- else
- error (g, \"%%s called from the wrong state, %%d != READY\",
- caller, guestfs__get_state (g));
- return -1;
- }
- return 0;
-}
+See also C<guestfs_stat>.");
-";
+ ("is_blockdev", (RBool "flag", [Pathname "path"]), 268, [],
+ [InitISOFS, Always, TestOutputFalse (
+ [["is_blockdev"; "/directory"]]);
+ InitBasicFS, Always, TestOutputTrue (
+ [["mknod_b"; "0o777"; "99"; "66"; "/test"];
+ ["is_blockdev"; "/test"]])],
+ "test if block device",
+ "\
+This returns C<true> if and only if there is a block device
+with the given C<path> name.
- (* Generate code to generate guestfish call traces. *)
- let trace_call shortname style =
- pr " if (guestfs__get_trace (g)) {\n";
+See also C<guestfs_stat>.");
- let needs_i =
- List.exists (function
- | StringList _ | DeviceList _ -> true
- | _ -> false) (snd style) in
- if needs_i then (
- pr " int i;\n";
- pr "\n"
- );
+ ("is_fifo", (RBool "flag", [Pathname "path"]), 269, [],
+ [InitISOFS, Always, TestOutputFalse (
+ [["is_fifo"; "/directory"]]);
+ InitBasicFS, Always, TestOutputTrue (
+ [["mkfifo"; "0o777"; "/test"];
+ ["is_fifo"; "/test"]])],
+ "test if FIFO (named pipe)",
+ "\
+This returns C<true> if and only if there is a FIFO (named pipe)
+with the given C<path> name.
- pr " printf (\"%s\");\n" shortname;
- List.iter (
- function
- | String n (* strings *)
- | Device n
- | Pathname n
- | Dev_or_Path n
- | FileIn n
- | FileOut n ->
- (* guestfish doesn't support string escaping, so neither do we *)
- pr " printf (\" \\\"%%s\\\"\", %s);\n" n
- | OptString n -> (* string option *)
- pr " if (%s) printf (\" \\\"%%s\\\"\", %s);\n" n n;
- pr " else printf (\" null\");\n"
- | StringList n
- | DeviceList n -> (* string list *)
- pr " putchar (' ');\n";
- pr " putchar ('\"');\n";
- pr " for (i = 0; %s[i]; ++i) {\n" n;
- pr " if (i > 0) putchar (' ');\n";
- pr " fputs (%s[i], stdout);\n" n;
- pr " }\n";
- pr " putchar ('\"');\n";
- | Bool n -> (* boolean *)
- pr " fputs (%s ? \" true\" : \" false\", stdout);\n" n
- | Int n -> (* int *)
- pr " printf (\" %%d\", %s);\n" n
- | Int64 n ->
- pr " printf (\" %%\" PRIi64, %s);\n" n
- ) (snd style);
- pr " putchar ('\\n');\n";
- pr " }\n";
- pr "\n";
- in
+See also C<guestfs_stat>.");
- (* For non-daemon functions, generate a wrapper around each function. *)
- List.iter (
- fun (shortname, style, _, _, _, _, _) ->
- let name = "guestfs_" ^ shortname in
+ ("is_symlink", (RBool "flag", [Pathname "path"]), 270, [],
+ [InitISOFS, Always, TestOutputFalse (
+ [["is_symlink"; "/directory"]]);
+ InitISOFS, Always, TestOutputTrue (
+ [["is_symlink"; "/abssymlink"]])],
+ "test if symbolic link",
+ "\
+This returns C<true> if and only if there is a symbolic link
+with the given C<path> name.
- generate_prototype ~extern:false ~semicolon:false ~newline:true
- ~handle:"g" name style;
- pr "{\n";
- trace_call shortname style;
- pr " return guestfs__%s " shortname;
- generate_c_call_args ~handle:"g" style;
- pr ";\n";
- pr "}\n";
- pr "\n"
- ) non_daemon_functions;
+See also C<guestfs_stat>.");
- (* Client-side stubs for each function. *)
- List.iter (
- fun (shortname, style, _, _, _, _, _) ->
- let name = "guestfs_" ^ shortname in
+ ("is_socket", (RBool "flag", [Pathname "path"]), 271, [],
+ (* XXX Need a positive test for sockets. *)
+ [InitISOFS, Always, TestOutputFalse (
+ [["is_socket"; "/directory"]])],
+ "test if socket",
+ "\
+This returns C<true> if and only if there is a Unix domain socket
+with the given C<path> name.
- (* Generate the action stub. *)
- generate_prototype ~extern:false ~semicolon:false ~newline:true
- ~handle:"g" name style;
+See also C<guestfs_stat>.");
- let error_code =
- match fst style with
- | RErr | RInt _ | RInt64 _ | RBool _ -> "-1"
- | RConstString _ | RConstOptString _ ->
- failwithf "RConstString|RConstOptString cannot be used by daemon functions"
- | RString _ | RStringList _
- | RStruct _ | RStructList _
- | RHashtable _ | RBufferOut _ ->
- "NULL" in
+]
- pr "{\n";
+let all_functions = non_daemon_functions @ daemon_functions
- (match snd style with
- | [] -> ()
- | _ -> pr " struct %s_args args;\n" name
- );
+(* In some places we want the functions to be displayed sorted
+ * alphabetically, so this is useful:
+ *)
+let all_functions_sorted =
+ List.sort (fun (n1,_,_,_,_,_,_) (n2,_,_,_,_,_,_) ->
+ compare n1 n2) all_functions
- pr " guestfs_message_header hdr;\n";
- pr " guestfs_message_error err;\n";
- let has_ret =
- match fst style with
- | RErr -> false
- | RConstString _ | RConstOptString _ ->
- failwithf "RConstString|RConstOptString cannot be used by daemon functions"
- | RInt _ | RInt64 _
- | RBool _ | RString _ | RStringList _
- | RStruct _ | RStructList _
- | RHashtable _ | RBufferOut _ ->
- pr " struct %s_ret ret;\n" name;
- true in
+(* This is used to generate the src/MAX_PROC_NR file which
+ * contains the maximum procedure number, a surrogate for the
+ * ABI version number. See src/Makefile.am for the details.
+ *)
+let max_proc_nr =
+ let proc_nrs = List.map (
+ fun (_, _, proc_nr, _, _, _, _) -> proc_nr
+ ) daemon_functions in
+ List.fold_left max 0 proc_nrs
- pr " int serial;\n";
- pr " int r;\n";
- pr "\n";
- trace_call shortname style;
- pr " if (check_state (g, \"%s\") == -1) return %s;\n" name error_code;
- pr " guestfs___set_busy (g);\n";
- pr "\n";
+(* Field types for structures. *)
+type field =
+ | FChar (* C 'char' (really, a 7 bit byte). *)
+ | FString (* nul-terminated ASCII string, NOT NULL. *)
+ | FBuffer (* opaque buffer of bytes, (char *, int) pair *)
+ | FUInt32
+ | FInt32
+ | FUInt64
+ | FInt64
+ | FBytes (* Any int measure that counts bytes. *)
+ | FUUID (* 32 bytes long, NOT nul-terminated. *)
+ | FOptPercent (* [0..100], or -1 meaning "not present". *)
- (* Send the main header and arguments. *)
- (match snd style with
- | [] ->
- pr " serial = guestfs___send (g, GUESTFS_PROC_%s, NULL, NULL);\n"
- (String.uppercase shortname)
- | args ->
- List.iter (
- function
- | Pathname n | Device n | Dev_or_Path n | String n ->
- pr " args.%s = (char *) %s;\n" n n
- | OptString n ->
- pr " args.%s = %s ? (char **) &%s : NULL;\n" n n n
- | StringList n | DeviceList n ->
- pr " args.%s.%s_val = (char **) %s;\n" n n n;
- pr " for (args.%s.%s_len = 0; %s[args.%s.%s_len]; args.%s.%s_len++) ;\n" n n n n n n n;
+(* Because we generate extra parsing code for LVM command line tools,
+ * we have to pull out the LVM columns separately here.
+ *)
+let lvm_pv_cols = [
+ "pv_name", FString;
+ "pv_uuid", FUUID;
+ "pv_fmt", FString;
+ "pv_size", FBytes;
+ "dev_size", FBytes;
+ "pv_free", FBytes;
+ "pv_used", FBytes;
+ "pv_attr", FString (* XXX *);
+ "pv_pe_count", FInt64;
+ "pv_pe_alloc_count", FInt64;
+ "pv_tags", FString;
+ "pe_start", FBytes;
+ "pv_mda_count", FInt64;
+ "pv_mda_free", FBytes;
+ (* Not in Fedora 10:
+ "pv_mda_size", FBytes;
+ *)
+]
+let lvm_vg_cols = [
+ "vg_name", FString;
+ "vg_uuid", FUUID;
+ "vg_fmt", FString;
+ "vg_attr", FString (* XXX *);
+ "vg_size", FBytes;
+ "vg_free", FBytes;
+ "vg_sysid", FString;
+ "vg_extent_size", FBytes;
+ "vg_extent_count", FInt64;
+ "vg_free_count", FInt64;
+ "max_lv", FInt64;
+ "max_pv", FInt64;
+ "pv_count", FInt64;
+ "lv_count", FInt64;
+ "snap_count", FInt64;
+ "vg_seqno", FInt64;
+ "vg_tags", FString;
+ "vg_mda_count", FInt64;
+ "vg_mda_free", FBytes;
+ (* Not in Fedora 10:
+ "vg_mda_size", FBytes;
+ *)
+]
+let lvm_lv_cols = [
+ "lv_name", FString;
+ "lv_uuid", FUUID;
+ "lv_attr", FString (* XXX *);
+ "lv_major", FInt64;
+ "lv_minor", FInt64;
+ "lv_kernel_major", FInt64;
+ "lv_kernel_minor", FInt64;
+ "lv_size", FBytes;
+ "seg_count", FInt64;
+ "origin", FString;
+ "snap_percent", FOptPercent;
+ "copy_percent", FOptPercent;
+ "move_pv", FString;
+ "lv_tags", FString;
+ "mirror_log", FString;
+ "modules", FString;
+]
+
+(* Names and fields in all structures (in RStruct and RStructList)
+ * that we support.
+ *)
+let structs = [
+ (* The old RIntBool return type, only ever used for aug_defnode. Do
+ * not use this struct in any new code.
+ *)
+ "int_bool", [
+ "i", FInt32; (* for historical compatibility *)
+ "b", FInt32; (* for historical compatibility *)
+ ];
+
+ (* LVM PVs, VGs, LVs. *)
+ "lvm_pv", lvm_pv_cols;
+ "lvm_vg", lvm_vg_cols;
+ "lvm_lv", lvm_lv_cols;
+
+ (* Column names and types from stat structures.
+ * NB. Can't use things like 'st_atime' because glibc header files
+ * define some of these as macros. Ugh.
+ *)
+ "stat", [
+ "dev", FInt64;
+ "ino", FInt64;
+ "mode", FInt64;
+ "nlink", FInt64;
+ "uid", FInt64;
+ "gid", FInt64;
+ "rdev", FInt64;
+ "size", FInt64;
+ "blksize", FInt64;
+ "blocks", FInt64;
+ "atime", FInt64;
+ "mtime", FInt64;
+ "ctime", FInt64;
+ ];
+ "statvfs", [
+ "bsize", FInt64;
+ "frsize", FInt64;
+ "blocks", FInt64;
+ "bfree", FInt64;
+ "bavail", FInt64;
+ "files", FInt64;
+ "ffree", FInt64;
+ "favail", FInt64;
+ "fsid", FInt64;
+ "flag", FInt64;
+ "namemax", FInt64;
+ ];
+
+ (* Column names in dirent structure. *)
+ "dirent", [
+ "ino", FInt64;
+ (* 'b' 'c' 'd' 'f' (FIFO) 'l' 'r' (regular file) 's' 'u' '?' *)
+ "ftyp", FChar;
+ "name", FString;
+ ];
+
+ (* Version numbers. *)
+ "version", [
+ "major", FInt64;
+ "minor", FInt64;
+ "release", FInt64;
+ "extra", FString;
+ ];
+
+ (* Extended attribute. *)
+ "xattr", [
+ "attrname", FString;
+ "attrval", FBuffer;
+ ];
+
+ (* Inotify events. *)
+ "inotify_event", [
+ "in_wd", FInt64;
+ "in_mask", FUInt32;
+ "in_cookie", FUInt32;
+ "in_name", FString;
+ ];
+
+ (* Partition table entry. *)
+ "partition", [
+ "part_num", FInt32;
+ "part_start", FBytes;
+ "part_end", FBytes;
+ "part_size", FBytes;
+ ];
+] (* end of structs *)
+
+(* Ugh, Java has to be different ..
+ * These names are also used by the Haskell bindings.
+ *)
+let java_structs = [
+ "int_bool", "IntBool";
+ "lvm_pv", "PV";
+ "lvm_vg", "VG";
+ "lvm_lv", "LV";
+ "stat", "Stat";
+ "statvfs", "StatVFS";
+ "dirent", "Dirent";
+ "version", "Version";
+ "xattr", "XAttr";
+ "inotify_event", "INotifyEvent";
+ "partition", "Partition";
+]
+
+(* What structs are actually returned. *)
+type rstructs_used_t = RStructOnly | RStructListOnly | RStructAndList
+
+(* Returns a list of RStruct/RStructList structs that are returned
+ * by any function. Each element of returned list is a pair:
+ *
+ * (structname, RStructOnly)
+ * == there exists function which returns RStruct (_, structname)
+ * (structname, RStructListOnly)
+ * == there exists function which returns RStructList (_, structname)
+ * (structname, RStructAndList)
+ * == there are functions returning both RStruct (_, structname)
+ * and RStructList (_, structname)
+ *)
+let rstructs_used_by functions =
+ (* ||| is a "logical OR" for rstructs_used_t *)
+ let (|||) a b =
+ match a, b with
+ | RStructAndList, _
+ | _, RStructAndList -> RStructAndList
+ | RStructOnly, RStructListOnly
+ | RStructListOnly, RStructOnly -> RStructAndList
+ | RStructOnly, RStructOnly -> RStructOnly
+ | RStructListOnly, RStructListOnly -> RStructListOnly
+ in
+
+ let h = Hashtbl.create 13 in
+
+ (* if elem->oldv exists, update entry using ||| operator,
+ * else just add elem->newv to the hash
+ *)
+ let update elem newv =
+ try let oldv = Hashtbl.find h elem in
+ Hashtbl.replace h elem (newv ||| oldv)
+ with Not_found -> Hashtbl.add h elem newv
+ in
+
+ List.iter (
+ fun (_, style, _, _, _, _, _) ->
+ match fst style with
+ | RStruct (_, structname) -> update structname RStructOnly
+ | RStructList (_, structname) -> update structname RStructListOnly
+ | _ -> ()
+ ) functions;
+
+ (* return key->values as a list of (key,value) *)
+ Hashtbl.fold (fun key value xs -> (key, value) :: xs) h []
+
+(* Used for testing language bindings. *)
+type callt =
+ | CallString of string
+ | CallOptString of string option
+ | CallStringList of string list
+ | CallInt of int
+ | CallInt64 of int64
+ | CallBool of bool
+ | CallBuffer of string
+
+(* Used for the guestfish -N (prepared disk images) option.
+ * Note that the longdescs are indented by 2 spaces.
+ *)
+let prepopts = [
+ ("disk",
+ "create a blank disk",
+ [ "size", "100M", "the size of the disk image" ],
+ " Create a blank disk, size 100MB (by default).
+
+ The default size can be changed by supplying an optional parameter.");
+
+ ("part",
+ "create a partitioned disk",
+ [ "size", "100M", "the size of the disk image";
+ "partition", "mbr", "partition table type" ],
+ " Create a disk with a single partition. By default the size of the disk
+ is 100MB (the available space in the partition will be a tiny bit smaller)
+ and the partition table will be MBR (old DOS-style).
+
+ These defaults can be changed by supplying optional parameters.");
+
+ ("fs",
+ "create a filesystem",
+ [ "filesystem", "ext2", "the type of filesystem to use";
+ "size", "100M", "the size of the disk image";
+ "partition", "mbr", "partition table type" ],
+ " Create a disk with a single partition, with the partition containing
+ an empty filesystem. This defaults to creating a 100MB disk (the available
+ space in the filesystem will be a tiny bit smaller) with an MBR (old
+ DOS-style) partition table and an ext2 filesystem.
+
+ These defaults can be changed by supplying optional parameters.");
+
+ ("lv",
+ "create a disk with logical volume",
+ [ "name", "/dev/VG/LV", "the name of the VG and LV to use";
+ "size", "100M", "the size of the disk image";
+ "partition", "mbr", "partition table type" ],
+ " Create a disk with a single partition, set up the partition as an
+ LVM2 physical volume, and place a volume group and logical volume
+ on there. This defaults to creating a 100MB disk with the VG and
+ LV called /dev/VG/LV. You can change the name of the VG and LV
+ by supplying an alternate name as the first optional parameter.
+
+ Note this does not create a filesystem. Use 'lvfs' to do that.");
+
+ ("lvfs",
+ "create a disk with logical volume and filesystem",
+ [ "name", "/dev/VG/LV", "the name of the VG and LV to use";
+ "filesystem", "ext2", "the type of filesystem to use";
+ "size", "100M", "the size of the disk image";
+ "partition", "mbr", "partition table type" ],
+ " Create a disk with a single partition, set up the partition as an
+ LVM2 physical volume, and place a volume group and logical volume
+ on there. Then format the LV with a filesystem. This defaults to
+ creating a 100MB disk with the VG and LV called /dev/VG/LV, with an
+ ext2 filesystem.");
+
+ ("bootroot",
+ "create a boot and root filesystem",
+ [ "bootfs", "ext2", "the type of filesystem to use for boot";
+ "rootfs", "ext2", "the type of filesystem to use for root";
+ "size", "100M", "the size of the disk image";
+ "bootsize", "32M", "the size of the boot filesystem";
+ "partition", "mbr", "partition table type" ],
+ " Create a disk with two partitions, for boot and root filesystem.
+ Format the two filesystems independently. There are several optional
+ parameters which control the exact layout and filesystem types.");
+
+ ("bootrootlv",
+ "create a boot and root filesystem using LVM",
+ [ "name", "/dev/VG/LV", "the name of the VG and LV for root";
+ "bootfs", "ext2", "the type of filesystem to use for boot";
+ "rootfs", "ext2", "the type of filesystem to use for root";
+ "size", "100M", "the size of the disk image";
+ "bootsize", "32M", "the size of the boot filesystem";
+ "partition", "mbr", "partition table type" ],
+ " This is the same as 'bootroot' but the root filesystem (only) is
+ placed on a logical volume, named by default '/dev/VG/LV'. There are
+ several optional parameters which control the exact layout.");
+
+]
+
+(* Used to memoize the result of pod2text. *)
+let pod2text_memo_filename = "src/.pod2text.data"
+let pod2text_memo : ((int * string * string), string list) Hashtbl.t =
+ try
+ let chan = open_in pod2text_memo_filename in
+ let v = input_value chan in
+ close_in chan;
+ v
+ with
+ _ -> Hashtbl.create 13
+let pod2text_memo_updated () =
+ let chan = open_out pod2text_memo_filename in
+ output_value chan pod2text_memo;
+ close_out chan
+
+(* Useful functions.
+ * Note we don't want to use any external OCaml libraries which
+ * makes this a bit harder than it should be.
+ *)
+module StringMap = Map.Make (String)
+
+let failwithf fs = ksprintf failwith fs
+
+let unique = let i = ref 0 in fun () -> incr i; !i
+
+let replace_char s c1 c2 =
+ let s2 = String.copy s in
+ let r = ref false in
+ for i = 0 to String.length s2 - 1 do
+ if String.unsafe_get s2 i = c1 then (
+ String.unsafe_set s2 i c2;
+ r := true
+ )
+ done;
+ if not !r then s else s2
+
+let isspace c =
+ c = ' '
+ (* || c = '\f' *) || c = '\n' || c = '\r' || c = '\t' (* || c = '\v' *)
+
+let triml ?(test = isspace) str =
+ let i = ref 0 in
+ let n = ref (String.length str) in
+ while !n > 0 && test str.[!i]; do
+ decr n;
+ incr i
+ done;
+ if !i = 0 then str
+ else String.sub str !i !n
+
+let trimr ?(test = isspace) str =
+ let n = ref (String.length str) in
+ while !n > 0 && test str.[!n-1]; do
+ decr n
+ done;
+ if !n = String.length str then str
+ else String.sub str 0 !n
+
+let trim ?(test = isspace) str =
+ trimr ~test (triml ~test str)
+
+let rec find s sub =
+ let len = String.length s in
+ let sublen = String.length sub in
+ let rec loop i =
+ if i <= len-sublen then (
+ let rec loop2 j =
+ if j < sublen then (
+ if s.[i+j] = sub.[j] then loop2 (j+1)
+ else -1
+ ) else
+ i (* found *)
+ in
+ let r = loop2 0 in
+ if r = -1 then loop (i+1) else r
+ ) else
+ -1 (* not found *)
+ in
+ loop 0
+
+let rec replace_str s s1 s2 =
+ let len = String.length s in
+ let sublen = String.length s1 in
+ let i = find s s1 in
+ if i = -1 then s
+ else (
+ let s' = String.sub s 0 i in
+ let s'' = String.sub s (i+sublen) (len-i-sublen) in
+ s' ^ s2 ^ replace_str s'' s1 s2
+ )
+
+let rec string_split sep str =
+ let len = String.length str in
+ let seplen = String.length sep in
+ let i = find str sep in
+ if i = -1 then [str]
+ else (
+ let s' = String.sub str 0 i in
+ let s'' = String.sub str (i+seplen) (len-i-seplen) in
+ s' :: string_split sep s''
+ )
+
+let files_equal n1 n2 =
+ let cmd = sprintf "cmp -s %s %s" (Filename.quote n1) (Filename.quote n2) in
+ match Sys.command cmd with
+ | 0 -> true
+ | 1 -> false
+ | i -> failwithf "%s: failed with error code %d" cmd i
+
+let rec filter_map f = function
+ | [] -> []
+ | x :: xs ->
+ match f x with
+ | Some y -> y :: filter_map f xs
+ | None -> filter_map f xs
+
+let rec find_map f = function
+ | [] -> raise Not_found
+ | x :: xs ->
+ match f x with
+ | Some y -> y
+ | None -> find_map f xs
+
+let iteri f xs =
+ let rec loop i = function
+ | [] -> ()
+ | x :: xs -> f i x; loop (i+1) xs
+ in
+ loop 0 xs
+
+let mapi f xs =
+ let rec loop i = function
+ | [] -> []
+ | x :: xs -> let r = f i x in r :: loop (i+1) xs
+ in
+ loop 0 xs
+
+let count_chars c str =
+ let count = ref 0 in
+ for i = 0 to String.length str - 1 do
+ if c = String.unsafe_get str i then incr count
+ done;
+ !count
+
+let explode str =
+ let r = ref [] in
+ for i = 0 to String.length str - 1 do
+ let c = String.unsafe_get str i in
+ r := c :: !r;
+ done;
+ List.rev !r
+
+let map_chars f str =
+ List.map f (explode str)
+
+let name_of_argt = function
+ | Pathname n | Device n | Dev_or_Path n | String n | OptString n
+ | StringList n | DeviceList n | Bool n | Int n | Int64 n
+ | FileIn n | FileOut n | BufferIn n | Key n -> n
+
+let java_name_of_struct typ =
+ try List.assoc typ java_structs
+ with Not_found ->
+ failwithf
+ "java_name_of_struct: no java_structs entry corresponding to %s" typ
+
+let cols_of_struct typ =
+ try List.assoc typ structs
+ with Not_found ->
+ failwithf "cols_of_struct: unknown struct %s" typ
+
+let seq_of_test = function
+ | TestRun s | TestOutput (s, _) | TestOutputList (s, _)
+ | TestOutputListOfDevices (s, _)
+ | TestOutputInt (s, _) | TestOutputIntOp (s, _, _)
+ | TestOutputTrue s | TestOutputFalse s
+ | TestOutputLength (s, _) | TestOutputBuffer (s, _)
+ | TestOutputStruct (s, _)
+ | TestLastFail s -> s
+
+(* Handling for function flags. *)
+let progress_message =
+ "This long-running command can generate progress notification messages
+so that the caller can display a progress bar or indicator.
+To receive these messages, the caller must register a progress
+callback. See L<guestfs(3)/guestfs_set_progress_callback>."
+
+let protocol_limit_warning =
+ "Because of the message protocol, there is a transfer limit
+of somewhere between 2MB and 4MB. See L<guestfs(3)/PROTOCOL LIMITS>."
+
+let danger_will_robinson =
+ "B<This command is dangerous. Without careful use you
+can easily destroy all your data>."
+
+let deprecation_notice flags =
+ try
+ let alt =
+ find_map (function DeprecatedBy str -> Some str | _ -> None) flags in
+ let txt =
+ sprintf "This function is deprecated.
+In new code, use the C<%s> call instead.
+
+Deprecated functions will not be removed from the API, but the
+fact that they are deprecated indicates that there are problems
+with correct use of these functions." alt in
+ Some txt
+ with
+ Not_found -> None
+
+(* Create list of optional groups. *)
+let optgroups =
+ let h = Hashtbl.create 13 in
+ List.iter (
+ fun (name, _, _, flags, _, _, _) ->
+ List.iter (
+ function
+ | Optional group ->
+ let names = try Hashtbl.find h group with Not_found -> [] in
+ Hashtbl.replace h group (name :: names)
+ | _ -> ()
+ ) flags
+ ) daemon_functions;
+ let groups = Hashtbl.fold (fun k _ ks -> k :: ks) h [] in
+ let groups =
+ List.map (
+ fun group -> group, List.sort compare (Hashtbl.find h group)
+ ) groups in
+ List.sort (fun x y -> compare (fst x) (fst y)) groups
+
+(* Check function names etc. for consistency. *)
+let check_functions () =
+ let contains_uppercase str =
+ let len = String.length str in
+ let rec loop i =
+ if i >= len then false
+ else (
+ let c = str.[i] in
+ if c >= 'A' && c <= 'Z' then true
+ else loop (i+1)
+ )
+ in
+ loop 0
+ in
+
+ (* Check function names. *)
+ List.iter (
+ fun (name, _, _, _, _, _, _) ->
+ if String.length name >= 7 && String.sub name 0 7 = "guestfs" then
+ failwithf "function name %s does not need 'guestfs' prefix" name;
+ if name = "" then
+ failwithf "function name is empty";
+ if name.[0] < 'a' || name.[0] > 'z' then
+ failwithf "function name %s must start with lowercase a-z" name;
+ if String.contains name '-' then
+ failwithf "function name %s should not contain '-', use '_' instead."
+ name
+ ) all_functions;
+
+ (* Check function parameter/return names. *)
+ List.iter (
+ fun (name, style, _, _, _, _, _) ->
+ let check_arg_ret_name n =
+ if contains_uppercase n then
+ failwithf "%s param/ret %s should not contain uppercase chars"
+ name n;
+ if String.contains n '-' || String.contains n '_' then
+ failwithf "%s param/ret %s should not contain '-' or '_'"
+ name n;
+ if n = "value" then
+ failwithf "%s has a param/ret called 'value', which causes conflicts in the OCaml bindings, use something like 'val' or a more descriptive name" name;
+ if n = "int" || n = "char" || n = "short" || n = "long" then
+ failwithf "%s has a param/ret which conflicts with a C type (eg. 'int', 'char' etc.)" name;
+ if n = "i" || n = "n" then
+ failwithf "%s has a param/ret called 'i' or 'n', which will cause some conflicts in the generated code" name;
+ if n = "argv" || n = "args" then
+ failwithf "%s has a param/ret called 'argv' or 'args', which will cause some conflicts in the generated code" name;
+
+ (* List Haskell, OCaml and C keywords here.
+ * http://www.haskell.org/haskellwiki/Keywords
+ * http://caml.inria.fr/pub/docs/manual-ocaml/lex.html#operator-char
+ * http://en.wikipedia.org/wiki/C_syntax#Reserved_keywords
+ * Formatted via: cat c haskell ocaml|sort -u|grep -vE '_|^val$' \
+ * |perl -pe 's/(.+)/"$1";/'|fmt -70
+ * Omitting _-containing words, since they're handled above.
+ * Omitting the OCaml reserved word, "val", is ok,
+ * and saves us from renaming several parameters.
+ *)
+ let reserved = [
+ "and"; "as"; "asr"; "assert"; "auto"; "begin"; "break"; "case";
+ "char"; "class"; "const"; "constraint"; "continue"; "data";
+ "default"; "deriving"; "do"; "done"; "double"; "downto"; "else";
+ "end"; "enum"; "exception"; "extern"; "external"; "false"; "float";
+ "for"; "forall"; "foreign"; "fun"; "function"; "functor"; "goto";
+ "hiding"; "if"; "import"; "in"; "include"; "infix"; "infixl";
+ "infixr"; "inherit"; "initializer"; "inline"; "instance"; "int";
+ "interface";
+ "land"; "lazy"; "let"; "long"; "lor"; "lsl"; "lsr"; "lxor";
+ "match"; "mdo"; "method"; "mod"; "module"; "mutable"; "new";
+ "newtype"; "object"; "of"; "open"; "or"; "private"; "qualified";
+ "rec"; "register"; "restrict"; "return"; "short"; "sig"; "signed";
+ "sizeof"; "static"; "struct"; "switch"; "then"; "to"; "true"; "try";
+ "type"; "typedef"; "union"; "unsigned"; "virtual"; "void";
+ "volatile"; "when"; "where"; "while";
+ ] in
+ if List.mem n reserved then
+ failwithf "%s has param/ret using reserved word %s" name n;
+ in
+
+ (match fst style with
+ | RErr -> ()
+ | RInt n | RInt64 n | RBool n
+ | RConstString n | RConstOptString n | RString n
+ | RStringList n | RStruct (n, _) | RStructList (n, _)
+ | RHashtable n | RBufferOut n ->
+ check_arg_ret_name n
+ );
+ List.iter (fun arg -> check_arg_ret_name (name_of_argt arg)) (snd style)
+ ) all_functions;
+
+ (* Check short descriptions. *)
+ List.iter (
+ fun (name, _, _, _, _, shortdesc, _) ->
+ if shortdesc.[0] <> Char.lowercase shortdesc.[0] then
+ failwithf "short description of %s should begin with lowercase." name;
+ let c = shortdesc.[String.length shortdesc-1] in
+ if c = '\n' || c = '.' then
+ failwithf "short description of %s should not end with . or \\n." name
+ ) all_functions;
+
+ (* Check long descriptions. *)
+ List.iter (
+ fun (name, _, _, _, _, _, longdesc) ->
+ if longdesc.[String.length longdesc-1] = '\n' then
+ failwithf "long description of %s should not end with \\n." name
+ ) all_functions;
+
+ (* Check proc_nrs. *)
+ List.iter (
+ fun (name, _, proc_nr, _, _, _, _) ->
+ if proc_nr <= 0 then
+ failwithf "daemon function %s should have proc_nr > 0" name
+ ) daemon_functions;
+
+ List.iter (
+ fun (name, _, proc_nr, _, _, _, _) ->
+ if proc_nr <> -1 then
+ failwithf "non-daemon function %s should have proc_nr -1" name
+ ) non_daemon_functions;
+
+ let proc_nrs =
+ List.map (fun (name, _, proc_nr, _, _, _, _) -> name, proc_nr)
+ daemon_functions in
+ let proc_nrs =
+ List.sort (fun (_,nr1) (_,nr2) -> compare nr1 nr2) proc_nrs in
+ let rec loop = function
+ | [] -> ()
+ | [_] -> ()
+ | (name1,nr1) :: ((name2,nr2) :: _ as rest) when nr1 < nr2 ->
+ loop rest
+ | (name1,nr1) :: (name2,nr2) :: _ ->
+ failwithf "%s and %s have conflicting procedure numbers (%d, %d)"
+ name1 name2 nr1 nr2
+ in
+ loop proc_nrs;
+
+ (* Check tests. *)
+ List.iter (
+ function
+ (* Ignore functions that have no tests. We generate a
+ * warning when the user does 'make check' instead.
+ *)
+ | name, _, _, _, [], _, _ -> ()
+ | name, _, _, _, tests, _, _ ->
+ let funcs =
+ List.map (
+ fun (_, _, test) ->
+ match seq_of_test test with
+ | [] ->
+ failwithf "%s has a test containing an empty sequence" name
+ | cmds -> List.map List.hd cmds
+ ) tests in
+ let funcs = List.flatten funcs in
+
+ let tested = List.mem name funcs in
+
+ if not tested then
+ failwithf "function %s has tests but does not test itself" name
+ ) all_functions
+
+(* 'pr' prints to the current output file. *)
+let chan = ref Pervasives.stdout
+let lines = ref 0
+let pr fs =
+ ksprintf
+ (fun str ->
+ let i = count_chars '\n' str in
+ lines := !lines + i;
+ output_string !chan str
+ ) fs
+
+let copyright_years =
+ let this_year = 1900 + (localtime (time ())).tm_year in
+ if this_year > 2009 then sprintf "2009-%04d" this_year else "2009"
+
+(* Generate a header block in a number of standard styles. *)
+type comment_style =
+ CStyle | CPlusPlusStyle | HashStyle | OCamlStyle | HaskellStyle
+type license = GPLv2plus | LGPLv2plus
+
+let generate_header ?(extra_inputs = []) comment license =
+ let inputs = "src/generator.ml" :: extra_inputs in
+ let c = match comment with
+ | CStyle -> pr "/* "; " *"
+ | CPlusPlusStyle -> pr "// "; "//"
+ | HashStyle -> pr "# "; "#"
+ | OCamlStyle -> pr "(* "; " *"
+ | HaskellStyle -> pr "{- "; " " in
+ pr "libguestfs generated file\n";
+ pr "%s WARNING: THIS FILE IS GENERATED FROM:\n" c;
+ List.iter (pr "%s %s\n" c) inputs;
+ pr "%s ANY CHANGES YOU MAKE TO THIS FILE WILL BE LOST.\n" c;
+ pr "%s\n" c;
+ pr "%s Copyright (C) %s Red Hat Inc.\n" c copyright_years;
+ pr "%s\n" c;
+ (match license with
+ | GPLv2plus ->
+ pr "%s This program is free software; you can redistribute it and/or modify\n" c;
+ pr "%s it under the terms of the GNU General Public License as published by\n" c;
+ pr "%s the Free Software Foundation; either version 2 of the License, or\n" c;
+ pr "%s (at your option) any later version.\n" c;
+ pr "%s\n" c;
+ pr "%s This program is distributed in the hope that it will be useful,\n" c;
+ pr "%s but WITHOUT ANY WARRANTY; without even the implied warranty of\n" c;
+ pr "%s MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\n" c;
+ pr "%s GNU General Public License for more details.\n" c;
+ pr "%s\n" c;
+ pr "%s You should have received a copy of the GNU General Public License along\n" c;
+ pr "%s with this program; if not, write to the Free Software Foundation, Inc.,\n" c;
+ pr "%s 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\n" c;
+
+ | LGPLv2plus ->
+ pr "%s This library is free software; you can redistribute it and/or\n" c;
+ pr "%s modify it under the terms of the GNU Lesser General Public\n" c;
+ pr "%s License as published by the Free Software Foundation; either\n" c;
+ pr "%s version 2 of the License, or (at your option) any later version.\n" c;
+ pr "%s\n" c;
+ pr "%s This library is distributed in the hope that it will be useful,\n" c;
+ pr "%s but WITHOUT ANY WARRANTY; without even the implied warranty of\n" c;
+ pr "%s MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\n" c;
+ pr "%s Lesser General Public License for more details.\n" c;
+ pr "%s\n" c;
+ pr "%s You should have received a copy of the GNU Lesser General Public\n" c;
+ pr "%s License along with this library; if not, write to the Free Software\n" c;
+ pr "%s Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\n" c;
+ );
+ (match comment with
+ | CStyle -> pr " */\n"
+ | CPlusPlusStyle
+ | HashStyle -> ()
+ | OCamlStyle -> pr " *)\n"
+ | HaskellStyle -> pr "-}\n"
+ );
+ pr "\n"
+
+(* Start of main code generation functions below this line. *)
+
+(* Generate the pod documentation for the C API. *)
+let rec generate_actions_pod () =
+ List.iter (
+ fun (shortname, style, _, flags, _, _, longdesc) ->
+ if not (List.mem NotInDocs flags) then (
+ let name = "guestfs_" ^ shortname in
+ pr "=head2 %s\n\n" name;
+ pr " ";
+ generate_prototype ~extern:false ~handle:"g" name style;
+ pr "\n\n";
+ pr "%s\n\n" longdesc;
+ (match fst style with
+ | RErr ->
+ pr "This function returns 0 on success or -1 on error.\n\n"
+ | RInt _ ->
+ pr "On error this function returns -1.\n\n"
+ | RInt64 _ ->
+ pr "On error this function returns -1.\n\n"
+ | RBool _ ->
+ pr "This function returns a C truth value on success or -1 on error.\n\n"
+ | RConstString _ ->
+ pr "This function returns a string, or NULL on error.
+The string is owned by the guest handle and must I<not> be freed.\n\n"
+ | RConstOptString _ ->
+ pr "This function returns a string which may be NULL.
+There is no way to return an error from this function.
+The string is owned by the guest handle and must I<not> be freed.\n\n"
+ | RString _ ->
+ pr "This function returns a string, or NULL on error.
+I<The caller must free the returned string after use>.\n\n"
+ | RStringList _ ->
+ pr "This function returns a NULL-terminated array of strings
+(like L<environ(3)>), or NULL if there was an error.
+I<The caller must free the strings and the array after use>.\n\n"
+ | RStruct (_, typ) ->
+ pr "This function returns a C<struct guestfs_%s *>,
+or NULL if there was an error.
+I<The caller must call C<guestfs_free_%s> after use>.\n\n" typ typ
+ | RStructList (_, typ) ->
+ pr "This function returns a C<struct guestfs_%s_list *>
+(see E<lt>guestfs-structs.hE<gt>),
+or NULL if there was an error.
+I<The caller must call C<guestfs_free_%s_list> after use>.\n\n" typ typ
+ | RHashtable _ ->
+ pr "This function returns a NULL-terminated array of
+strings, or NULL if there was an error.
+The array of strings will always have length C<2n+1>, where
+C<n> keys and values alternate, followed by the trailing NULL entry.
+I<The caller must free the strings and the array after use>.\n\n"
+ | RBufferOut _ ->
+ pr "This function returns a buffer, or NULL on error.
+The size of the returned buffer is written to C<*size_r>.
+I<The caller must free the returned buffer after use>.\n\n"
+ );
+ if List.mem Progress flags then
+ pr "%s\n\n" progress_message;
+ if List.mem ProtocolLimitWarning flags then
+ pr "%s\n\n" protocol_limit_warning;
+ if List.mem DangerWillRobinson flags then
+ pr "%s\n\n" danger_will_robinson;
+ if List.exists (function Key _ -> true | _ -> false) (snd style) then
+ pr "This function takes a key or passphrase parameter which
+could contain sensitive material. Read the section
+L</KEYS AND PASSPHRASES> for more information.\n\n";
+ match deprecation_notice flags with
+ | None -> ()
+ | Some txt -> pr "%s\n\n" txt
+ )
+ ) all_functions_sorted
+
+and generate_structs_pod () =
+ (* Structs documentation. *)
+ List.iter (
+ fun (typ, cols) ->
+ pr "=head2 guestfs_%s\n" typ;
+ pr "\n";
+ pr " struct guestfs_%s {\n" typ;
+ List.iter (
+ function
+ | name, FChar -> pr " char %s;\n" name
+ | name, FUInt32 -> pr " uint32_t %s;\n" name
+ | name, FInt32 -> pr " int32_t %s;\n" name
+ | name, (FUInt64|FBytes) -> pr " uint64_t %s;\n" name
+ | name, FInt64 -> pr " int64_t %s;\n" name
+ | name, FString -> pr " char *%s;\n" name
+ | name, FBuffer ->
+ pr " /* The next two fields describe a byte array. */\n";
+ pr " uint32_t %s_len;\n" name;
+ pr " char *%s;\n" name
+ | name, FUUID ->
+ pr " /* The next field is NOT nul-terminated, be careful when printing it: */\n";
+ pr " char %s[32];\n" name
+ | name, FOptPercent ->
+ pr " /* The next field is [0..100] or -1 meaning 'not present': */\n";
+ pr " float %s;\n" name
+ ) cols;
+ pr " };\n";
+ pr " \n";
+ pr " struct guestfs_%s_list {\n" typ;
+ pr " uint32_t len; /* Number of elements in list. */\n";
+ pr " struct guestfs_%s *val; /* Elements. */\n" typ;
+ pr " };\n";
+ pr " \n";
+ pr " void guestfs_free_%s (struct guestfs_free_%s *);\n" typ typ;
+ pr " void guestfs_free_%s_list (struct guestfs_free_%s_list *);\n"
+ typ typ;
+ pr "\n"
+ ) structs
+
+and generate_availability_pod () =
+ (* Availability documentation. *)
+ pr "=over 4\n";
+ pr "\n";
+ List.iter (
+ fun (group, functions) ->
+ pr "=item B<%s>\n" group;
+ pr "\n";
+ pr "The following functions:\n";
+ List.iter (pr "L</guestfs_%s>\n") functions;
+ pr "\n"
+ ) optgroups;
+ pr "=back\n";
+ pr "\n"
+
+(* Generate the protocol (XDR) file, 'guestfs_protocol.x' and
+ * indirectly 'guestfs_protocol.h' and 'guestfs_protocol.c'.
+ *
+ * We have to use an underscore instead of a dash because otherwise
+ * rpcgen generates incorrect code.
+ *
+ * This header is NOT exported to clients, but see also generate_structs_h.
+ *)
+and generate_xdr () =
+ generate_header CStyle LGPLv2plus;
+
+ (* This has to be defined to get around a limitation in Sun's rpcgen. *)
+ pr "typedef string guestfs_str<>;\n";
+ pr "\n";
+
+ (* Internal structures. *)
+ List.iter (
+ function
+ | typ, cols ->
+ pr "struct guestfs_int_%s {\n" typ;
+ List.iter (function
+ | name, FChar -> pr " char %s;\n" name
+ | name, FString -> pr " string %s<>;\n" name
+ | name, FBuffer -> pr " opaque %s<>;\n" name
+ | name, FUUID -> pr " opaque %s[32];\n" name
+ | name, (FInt32|FUInt32) -> pr " int %s;\n" name
+ | name, (FInt64|FUInt64|FBytes) -> pr " hyper %s;\n" name
+ | name, FOptPercent -> pr " float %s;\n" name
+ ) cols;
+ pr "};\n";
+ pr "\n";
+ pr "typedef struct guestfs_int_%s guestfs_int_%s_list<>;\n" typ typ;
+ pr "\n";
+ ) structs;
+
+ List.iter (
+ fun (shortname, style, _, _, _, _, _) ->
+ let name = "guestfs_" ^ shortname in
+
+ (match snd style with
+ | [] -> ()
+ | args ->
+ pr "struct %s_args {\n" name;
+ List.iter (
+ function
+ | Pathname n | Device n | Dev_or_Path n | String n | Key n ->
+ pr " string %s<>;\n" n
+ | OptString n -> pr " guestfs_str *%s;\n" n
+ | StringList n | DeviceList n -> pr " guestfs_str %s<>;\n" n
+ | Bool n -> pr " bool %s;\n" n
+ | Int n -> pr " int %s;\n" n
+ | Int64 n -> pr " hyper %s;\n" n
+ | BufferIn n ->
+ pr " opaque %s<>;\n" n
+ | FileIn _ | FileOut _ -> ()
+ ) args;
+ pr "};\n\n"
+ );
+ (match fst style with
+ | RErr -> ()
+ | RInt n ->
+ pr "struct %s_ret {\n" name;
+ pr " int %s;\n" n;
+ pr "};\n\n"
+ | RInt64 n ->
+ pr "struct %s_ret {\n" name;
+ pr " hyper %s;\n" n;
+ pr "};\n\n"
+ | RBool n ->
+ pr "struct %s_ret {\n" name;
+ pr " bool %s;\n" n;
+ pr "};\n\n"
+ | RConstString _ | RConstOptString _ ->
+ failwithf "RConstString|RConstOptString cannot be used by daemon functions"
+ | RString n ->
+ pr "struct %s_ret {\n" name;
+ pr " string %s<>;\n" n;
+ pr "};\n\n"
+ | RStringList n ->
+ pr "struct %s_ret {\n" name;
+ pr " guestfs_str %s<>;\n" n;
+ pr "};\n\n"
+ | RStruct (n, typ) ->
+ pr "struct %s_ret {\n" name;
+ pr " guestfs_int_%s %s;\n" typ n;
+ pr "};\n\n"
+ | RStructList (n, typ) ->
+ pr "struct %s_ret {\n" name;
+ pr " guestfs_int_%s_list %s;\n" typ n;
+ pr "};\n\n"
+ | RHashtable n ->
+ pr "struct %s_ret {\n" name;
+ pr " guestfs_str %s<>;\n" n;
+ pr "};\n\n"
+ | RBufferOut n ->
+ pr "struct %s_ret {\n" name;
+ pr " opaque %s<>;\n" n;
+ pr "};\n\n"
+ );
+ ) daemon_functions;
+
+ (* Table of procedure numbers. *)
+ pr "enum guestfs_procedure {\n";
+ List.iter (
+ fun (shortname, _, proc_nr, _, _, _, _) ->
+ pr " GUESTFS_PROC_%s = %d,\n" (String.uppercase shortname) proc_nr
+ ) daemon_functions;
+ pr " GUESTFS_PROC_NR_PROCS\n";
+ pr "};\n";
+ pr "\n";
+
+ (* Having to choose a maximum message size is annoying for several
+ * reasons (it limits what we can do in the API), but it (a) makes
+ * the protocol a lot simpler, and (b) provides a bound on the size
+ * of the daemon which operates in limited memory space.
+ *)
+ pr "const GUESTFS_MESSAGE_MAX = %d;\n" (4 * 1024 * 1024);
+ pr "\n";
+
+ (* Message header, etc. *)
+ pr "\
+/* The communication protocol is now documented in the guestfs(3)
+ * manpage.
+ */
+
+const GUESTFS_PROGRAM = 0x2000F5F5;
+const GUESTFS_PROTOCOL_VERSION = 2;
+
+/* These constants must be larger than any possible message length. */
+const GUESTFS_LAUNCH_FLAG = 0xf5f55ff5;
+const GUESTFS_CANCEL_FLAG = 0xffffeeee;
+const GUESTFS_PROGRESS_FLAG = 0xffff5555;
+
+enum guestfs_message_direction {
+ GUESTFS_DIRECTION_CALL = 0, /* client -> daemon */
+ GUESTFS_DIRECTION_REPLY = 1 /* daemon -> client */
+};
+
+enum guestfs_message_status {
+ GUESTFS_STATUS_OK = 0,
+ GUESTFS_STATUS_ERROR = 1
+};
+
+";
+
+ pr "const GUESTFS_ERROR_LEN = %d;\n" (64 * 1024);
+ pr "\n";
+
+ pr "\
+struct guestfs_message_error {
+ int linux_errno; /* Linux errno if available. */
+ string error_message<GUESTFS_ERROR_LEN>;
+};
+
+struct guestfs_message_header {
+ unsigned prog; /* GUESTFS_PROGRAM */
+ unsigned vers; /* GUESTFS_PROTOCOL_VERSION */
+ guestfs_procedure proc; /* GUESTFS_PROC_x */
+ guestfs_message_direction direction;
+ unsigned serial; /* message serial number */
+ guestfs_message_status status;
+};
+
+const GUESTFS_MAX_CHUNK_SIZE = 8192;
+
+struct guestfs_chunk {
+ int cancel; /* if non-zero, transfer is cancelled */
+ /* data size is 0 bytes if the transfer has finished successfully */
+ opaque data<GUESTFS_MAX_CHUNK_SIZE>;
+};
+
+/* Progress notifications. Daemon self-limits these messages to
+ * at most one per second. The daemon can send these messages
+ * at any time, and the caller should discard unexpected messages.
+ * 'position' and 'total' have undefined units; however they may
+ * have meaning for some calls.
+ *
+ * NB. guestfs___recv_from_daemon assumes the XDR-encoded
+ * structure is 24 bytes long.
+ */
+struct guestfs_progress {
+ guestfs_procedure proc; /* @0: GUESTFS_PROC_x */
+ unsigned serial; /* @4: message serial number */
+ unsigned hyper position; /* @8: 0 <= position <= total */
+ unsigned hyper total; /* @16: total size of operation */
+ /* @24: size of structure */
+};
+"
+
+(* Generate the guestfs-structs.h file. *)
+and generate_structs_h () =
+ generate_header CStyle LGPLv2plus;
+
+ (* This is a public exported header file containing various
+ * structures. The structures are carefully written to have
+ * exactly the same in-memory format as the XDR structures that
+ * we use on the wire to the daemon. The reason for creating
+ * copies of these structures here is just so we don't have to
+ * export the whole of guestfs_protocol.h (which includes much
+ * unrelated and XDR-dependent stuff that we don't want to be
+ * public, or required by clients).
+ *
+ * To reiterate, we will pass these structures to and from the
+ * client with a simple assignment or memcpy, so the format
+ * must be identical to what rpcgen / the RFC defines.
+ *)
+
+ (* Public structures. *)
+ List.iter (
+ fun (typ, cols) ->
+ pr "struct guestfs_%s {\n" typ;
+ List.iter (
+ function
+ | name, FChar -> pr " char %s;\n" name
+ | name, FString -> pr " char *%s;\n" name
+ | name, FBuffer ->
+ pr " uint32_t %s_len;\n" name;
+ pr " char *%s;\n" name
+ | name, FUUID -> pr " char %s[32]; /* this is NOT nul-terminated, be careful when printing */\n" name
+ | name, FUInt32 -> pr " uint32_t %s;\n" name
+ | name, FInt32 -> pr " int32_t %s;\n" name
+ | name, (FUInt64|FBytes) -> pr " uint64_t %s;\n" name
+ | name, FInt64 -> pr " int64_t %s;\n" name
+ | name, FOptPercent -> pr " float %s; /* [0..100] or -1 */\n" name
+ ) cols;
+ pr "};\n";
+ pr "\n";
+ pr "struct guestfs_%s_list {\n" typ;
+ pr " uint32_t len;\n";
+ pr " struct guestfs_%s *val;\n" typ;
+ pr "};\n";
+ pr "\n";
+ pr "extern void guestfs_free_%s (struct guestfs_%s *);\n" typ typ;
+ pr "extern void guestfs_free_%s_list (struct guestfs_%s_list *);\n" typ typ;
+ pr "\n"
+ ) structs
+
+(* Generate the guestfs-actions.h file. *)
+and generate_actions_h () =
+ generate_header CStyle LGPLv2plus;
+ List.iter (
+ fun (shortname, style, _, flags, _, _, _) ->
+ let name = "guestfs_" ^ shortname in
+
+ let deprecated =
+ List.exists (function DeprecatedBy _ -> true | _ -> false) flags in
+ let test0 =
+ String.length shortname >= 5 && String.sub shortname 0 5 = "test0" in
+ let debug =
+ String.length shortname >= 5 && String.sub shortname 0 5 = "debug" in
+ if not deprecated && not test0 && not debug then
+ pr "#define LIBGUESTFS_HAVE_%s 1\n" (String.uppercase shortname);
+
+ generate_prototype ~single_line:true ~newline:true ~handle:"g"
+ name style
+ ) all_functions_sorted
+
+(* Generate the guestfs-internal-actions.h file. *)
+and generate_internal_actions_h () =
+ generate_header CStyle LGPLv2plus;
+ List.iter (
+ fun (shortname, style, _, _, _, _, _) ->
+ let name = "guestfs__" ^ shortname in
+ generate_prototype ~single_line:true ~newline:true ~handle:"g"
+ name style
+ ) non_daemon_functions
+
+(* Generate the client-side dispatch stubs. *)
+and generate_client_actions () =
+ generate_header CStyle LGPLv2plus;
+
+ pr "\
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <inttypes.h>
+
+#include \"guestfs.h\"
+#include \"guestfs-internal.h\"
+#include \"guestfs-internal-actions.h\"
+#include \"guestfs_protocol.h\"
+
+/* Check the return message from a call for validity. */
+static int
+check_reply_header (guestfs_h *g,
+ const struct guestfs_message_header *hdr,
+ unsigned int proc_nr, unsigned int serial)
+{
+ if (hdr->prog != GUESTFS_PROGRAM) {
+ error (g, \"wrong program (%%d/%%d)\", hdr->prog, GUESTFS_PROGRAM);
+ return -1;
+ }
+ if (hdr->vers != GUESTFS_PROTOCOL_VERSION) {
+ error (g, \"wrong protocol version (%%d/%%d)\",
+ hdr->vers, GUESTFS_PROTOCOL_VERSION);
+ return -1;
+ }
+ if (hdr->direction != GUESTFS_DIRECTION_REPLY) {
+ error (g, \"unexpected message direction (%%d/%%d)\",
+ hdr->direction, GUESTFS_DIRECTION_REPLY);
+ return -1;
+ }
+ if (hdr->proc != proc_nr) {
+ error (g, \"unexpected procedure number (%%d/%%d)\", hdr->proc, proc_nr);
+ return -1;
+ }
+ if (hdr->serial != serial) {
+ error (g, \"unexpected serial (%%d/%%d)\", hdr->serial, serial);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Check we are in the right state to run a high-level action. */
+static int
+check_state (guestfs_h *g, const char *caller)
+{
+ if (!guestfs__is_ready (g)) {
+ if (guestfs__is_config (g) || guestfs__is_launching (g))
+ error (g, \"%%s: call launch before using this function\\n(in guestfish, don't forget to use the 'run' command)\",
+ caller);
+ else
+ error (g, \"%%s called from the wrong state, %%d != READY\",
+ caller, guestfs__get_state (g));
+ return -1;
+ }
+ return 0;
+}
+
+";
+
+ let error_code_of = function
+ | RErr | RInt _ | RInt64 _ | RBool _ -> "-1"
+ | RConstString _ | RConstOptString _
+ | RString _ | RStringList _
+ | RStruct _ | RStructList _
+ | RHashtable _ | RBufferOut _ -> "NULL"
+ in
+
+ (* Generate code to check String-like parameters are not passed in
+ * as NULL (returning an error if they are).
+ *)
+ let check_null_strings shortname style =
+ let pr_newline = ref false in
+ List.iter (
+ function
+ (* parameters which should not be NULL *)
+ | String n
+ | Device n
+ | Pathname n
+ | Dev_or_Path n
+ | FileIn n
+ | FileOut n
+ | BufferIn n
+ | StringList n
+ | DeviceList n
+ | Key n ->
+ pr " if (%s == NULL) {\n" n;
+ pr " error (g, \"%%s: %%s: parameter cannot be NULL\",\n";
+ pr " \"%s\", \"%s\");\n" shortname n;
+ pr " return %s;\n" (error_code_of (fst style));
+ pr " }\n";
+ pr_newline := true
+
+ (* can be NULL *)
+ | OptString _
+
+ (* not applicable *)
+ | Bool _
+ | Int _
+ | Int64 _ -> ()
+ ) (snd style);
+
+ if !pr_newline then pr "\n";
+ in
+
+ (* Generate code to generate guestfish call traces. *)
+ let trace_call shortname style =
+ pr " if (guestfs__get_trace (g)) {\n";
+
+ let needs_i =
+ List.exists (function
+ | StringList _ | DeviceList _ -> true
+ | _ -> false) (snd style) in
+ if needs_i then (
+ pr " size_t i;\n";
+ pr "\n"
+ );
+
+ pr " fprintf (stderr, \"%s\");\n" shortname;
+ List.iter (
+ function
+ | String n (* strings *)
+ | Device n
+ | Pathname n
+ | Dev_or_Path n
+ | FileIn n
+ | FileOut n
+ | BufferIn n
+ | Key n ->
+ (* guestfish doesn't support string escaping, so neither do we *)
+ pr " fprintf (stderr, \" \\\"%%s\\\"\", %s);\n" n
+ | OptString n -> (* string option *)
+ pr " if (%s) fprintf (stderr, \" \\\"%%s\\\"\", %s);\n" n n;
+ pr " else fprintf (stderr, \" null\");\n"
+ | StringList n
+ | DeviceList n -> (* string list *)
+ pr " fputc (' ', stderr);\n";
+ pr " fputc ('\"', stderr);\n";
+ pr " for (i = 0; %s[i]; ++i) {\n" n;
+ pr " if (i > 0) fputc (' ', stderr);\n";
+ pr " fputs (%s[i], stderr);\n" n;
+ pr " }\n";
+ pr " fputc ('\"', stderr);\n";
+ | Bool n -> (* boolean *)
+ pr " fputs (%s ? \" true\" : \" false\", stderr);\n" n
+ | Int n -> (* int *)
+ pr " fprintf (stderr, \" %%d\", %s);\n" n
+ | Int64 n ->
+ pr " fprintf (stderr, \" %%\" PRIi64, %s);\n" n
+ ) (snd style);
+ pr " fputc ('\\n', stderr);\n";
+ pr " }\n";
+ pr "\n";
+ in
+
+ (* For non-daemon functions, generate a wrapper around each function. *)
+ List.iter (
+ fun (shortname, style, _, _, _, _, _) ->
+ let name = "guestfs_" ^ shortname in
+
+ generate_prototype ~extern:false ~semicolon:false ~newline:true
+ ~handle:"g" name style;
+ pr "{\n";
+ check_null_strings shortname style;
+ trace_call shortname style;
+ pr " return guestfs__%s " shortname;
+ generate_c_call_args ~handle:"g" style;
+ pr ";\n";
+ pr "}\n";
+ pr "\n"
+ ) non_daemon_functions;
+
+ (* Client-side stubs for each function. *)
+ List.iter (
+ fun (shortname, style, _, _, _, _, _) ->
+ let name = "guestfs_" ^ shortname in
+ let error_code = error_code_of (fst style) in
+
+ (* Generate the action stub. *)
+ generate_prototype ~extern:false ~semicolon:false ~newline:true
+ ~handle:"g" name style;
+
+ pr "{\n";
+
+ (match snd style with
+ | [] -> ()
+ | _ -> pr " struct %s_args args;\n" name
+ );
+
+ pr " guestfs_message_header hdr;\n";
+ pr " guestfs_message_error err;\n";
+ let has_ret =
+ match fst style with
+ | RErr -> false
+ | RConstString _ | RConstOptString _ ->
+ failwithf "RConstString|RConstOptString cannot be used by daemon functions"
+ | RInt _ | RInt64 _
+ | RBool _ | RString _ | RStringList _
+ | RStruct _ | RStructList _
+ | RHashtable _ | RBufferOut _ ->
+ pr " struct %s_ret ret;\n" name;
+ true in
+
+ pr " int serial;\n";
+ pr " int r;\n";
+ pr "\n";
+ check_null_strings shortname style;
+ trace_call shortname style;
+ pr " if (check_state (g, \"%s\") == -1) return %s;\n"
+ shortname error_code;
+ pr " guestfs___set_busy (g);\n";
+ pr "\n";
+
+ (* Send the main header and arguments. *)
+ (match snd style with
+ | [] ->
+ pr " serial = guestfs___send (g, GUESTFS_PROC_%s, NULL, NULL);\n"
+ (String.uppercase shortname)
+ | args ->
+ List.iter (
+ function
+ | Pathname n | Device n | Dev_or_Path n | String n | Key n ->
+ pr " args.%s = (char *) %s;\n" n n
+ | OptString n ->
+ pr " args.%s = %s ? (char **) &%s : NULL;\n" n n n
+ | StringList n | DeviceList n ->
+ pr " args.%s.%s_val = (char **) %s;\n" n n n;
+ pr " for (args.%s.%s_len = 0; %s[args.%s.%s_len]; args.%s.%s_len++) ;\n" n n n n n n n;
| Bool n ->
pr " args.%s = %s;\n" n n
| Int n ->
| Int64 n ->
pr " args.%s = %s;\n" n n
| FileIn _ | FileOut _ -> ()
+ | BufferIn n ->
+ pr " /* Just catch grossly large sizes. XDR encoding will make this precise. */\n";
+ pr " if (%s_size >= GUESTFS_MESSAGE_MAX) {\n" n;
+ pr " error (g, \"%%s: size of input buffer too large\", \"%s\");\n"
+ shortname;
+ pr " guestfs___end_busy (g);\n";
+ pr " return %s;\n" error_code;
+ pr " }\n";
+ pr " args.%s.%s_val = (char *) %s;\n" n n n;
+ pr " args.%s.%s_len = %s_size;\n" n n n
) args;
pr " serial = guestfs___send (g, GUESTFS_PROC_%s,\n"
(String.uppercase shortname);
(* Generate daemon/actions.h. *)
and generate_daemon_actions_h () =
- generate_header CStyle GPLv2;
+ generate_header CStyle GPLv2plus;
pr "#include \"../src/guestfs_protocol.h\"\n";
pr "\n";
name style;
) daemon_functions
+(* Generate the linker script which controls the visibility of
+ * symbols in the public ABI and ensures no other symbols get
+ * exported accidentally.
+ *)
+and generate_linker_script () =
+ generate_header HashStyle GPLv2plus;
+
+ let globals = [
+ "guestfs_create";
+ "guestfs_close";
+ "guestfs_get_error_handler";
+ "guestfs_get_out_of_memory_handler";
+ "guestfs_get_private";
+ "guestfs_last_error";
+ "guestfs_set_close_callback";
+ "guestfs_set_error_handler";
+ "guestfs_set_launch_done_callback";
+ "guestfs_set_log_message_callback";
+ "guestfs_set_out_of_memory_handler";
+ "guestfs_set_private";
+ "guestfs_set_progress_callback";
+ "guestfs_set_subprocess_quit_callback";
+
+ (* Unofficial parts of the API: the bindings code use these
+ * functions, so it is useful to export them.
+ *)
+ "guestfs_safe_calloc";
+ "guestfs_safe_malloc";
+ "guestfs_safe_strdup";
+ "guestfs_safe_memdup";
+ ] in
+ let functions =
+ List.map (fun (name, _, _, _, _, _, _) -> "guestfs_" ^ name)
+ all_functions in
+ let structs =
+ List.concat (
+ List.map (fun (typ, _) ->
+ ["guestfs_free_" ^ typ; "guestfs_free_" ^ typ ^ "_list"])
+ structs
+ ) in
+ let globals = List.sort compare (globals @ functions @ structs) in
+
+ pr "{\n";
+ pr " global:\n";
+ List.iter (pr " %s;\n") globals;
+ pr "\n";
+
+ pr " local:\n";
+ pr " *;\n";
+ pr "};\n"
+
(* Generate the server-side stubs. *)
and generate_daemon_actions () =
- generate_header CStyle GPLv2;
+ generate_header CStyle GPLv2plus;
pr "#include <config.h>\n";
pr "\n";
function
| Device n | Dev_or_Path n
| Pathname n
- | String n -> ()
+ | String n
+ | Key n -> ()
| OptString n -> pr " char *%s;\n" n
| StringList n | DeviceList n -> pr " char **%s;\n" n
| Bool n -> pr " int %s;\n" n
| Int n -> pr " int %s;\n" n
| Int64 n -> pr " int64_t %s;\n" n
| FileIn _ | FileOut _ -> ()
+ | BufferIn n ->
+ pr " const char *%s;\n" n;
+ pr " size_t %s_size;\n" n
) args
);
pr "\n";
+ let is_filein =
+ List.exists (function FileIn _ -> true | _ -> false) (snd style) in
+
(match snd style with
| [] -> ()
| args ->
pr " memset (&args, 0, sizeof args);\n";
pr "\n";
pr " if (!xdr_guestfs_%s_args (xdr_in, &args)) {\n" name;
- pr " reply_with_error (\"%%s: daemon failed to decode procedure arguments\", \"%s\");\n" name;
- pr " return;\n";
+ if is_filein then
+ pr " if (cancel_receive () != -2)\n";
+ pr " reply_with_error (\"daemon failed to decode procedure arguments\");\n";
+ pr " goto done;\n";
pr " }\n";
let pr_args n =
pr " char *%s = args.%s;\n" n n
pr " %s = realloc (args.%s.%s_val,\n" n n n;
pr " sizeof (char *) * (args.%s.%s_len+1));\n" n n;
pr " if (%s == NULL) {\n" n;
- pr " reply_with_perror (\"realloc\");\n";
+ if is_filein then
+ pr " if (cancel_receive () != -2)\n";
+ pr " reply_with_perror (\"realloc\");\n";
pr " goto done;\n";
pr " }\n";
pr " %s[args.%s.%s_len] = NULL;\n" n n n;
function
| Pathname n ->
pr_args n;
- pr " ABS_PATH (%s, goto done);\n" n;
+ pr " ABS_PATH (%s, %s, goto done);\n"
+ n (if is_filein then "cancel_receive ()" else "0");
| Device n ->
pr_args n;
- pr " RESOLVE_DEVICE (%s, goto done);\n" n;
+ pr " RESOLVE_DEVICE (%s, %s, goto done);\n"
+ n (if is_filein then "cancel_receive ()" else "0");
| Dev_or_Path n ->
pr_args n;
- pr " REQUIRE_ROOT_OR_RESOLVE_DEVICE (%s, goto done);\n" n;
- | String n -> pr_args n
+ pr " REQUIRE_ROOT_OR_RESOLVE_DEVICE (%s, %s, goto done);\n"
+ n (if is_filein then "cancel_receive ()" else "0");
+ | String n | Key n -> pr_args n
| OptString n -> pr " %s = args.%s ? *args.%s : NULL;\n" n n n
| StringList n ->
pr_list_handling_code n;
| DeviceList n ->
pr_list_handling_code n;
pr " /* Ensure that each is a device,\n";
- pr " * and perform device name translation. */\n";
- pr " { int pvi; for (pvi = 0; physvols[pvi] != NULL; ++pvi)\n";
- pr " RESOLVE_DEVICE (physvols[pvi], goto done);\n";
+ pr " * and perform device name translation.\n";
+ pr " */\n";
+ pr " {\n";
+ pr " size_t i;\n";
+ pr " for (i = 0; %s[i] != NULL; ++i)\n" n;
+ pr " RESOLVE_DEVICE (%s[i], %s, goto done);\n" n
+ (if is_filein then "cancel_receive ()" else "0");
pr " }\n";
| Bool n -> pr " %s = args.%s;\n" n n
| Int n -> pr " %s = args.%s;\n" n n
| Int64 n -> pr " %s = args.%s;\n" n n
| FileIn _ | FileOut _ -> ()
+ | BufferIn n ->
+ pr " %s = args.%s.%s_val;\n" n n n;
+ pr " %s_size = args.%s.%s_len;\n" n n n
) args;
pr "\n"
);
-
(* this is used at least for do_equal *)
if List.exists (function Pathname _ -> true | _ -> false) (snd style) then (
(* Emit NEED_ROOT just once, even when there are two or
more Pathname args *)
- pr " NEED_ROOT (goto done);\n";
+ pr " NEED_ROOT (%s, goto done);\n"
+ (if is_filein then "cancel_receive ()" else "0");
);
(* Don't want to call the impl with any FileIn or FileOut
);
(* Free the args. *)
+ pr "done:\n";
(match snd style with
- | [] ->
- pr "done: ;\n";
+ | [] -> ()
| _ ->
- pr "done:\n";
pr " xdr_free ((xdrproc_t) xdr_guestfs_%s_args, (char *) &args);\n"
name
);
-
+ pr " return;\n";
pr "}\n\n";
) daemon_functions;
pr "static int lvm_tokenize_%s (char *str, guestfs_int_lvm_%s *r)\n" typ typ;
pr "{\n";
pr " char *tok, *p, *next;\n";
- pr " int i, j;\n";
+ pr " size_t i, j;\n";
pr "\n";
(*
pr " fprintf (stderr, \"%%s: <<%%s>>\\n\", __func__, str);\n";
pr " ret->guestfs_int_lvm_%s_list_val = NULL;\n" typ;
pr "\n";
pr " r = command (&out, &err,\n";
- pr " \"/sbin/lvm\", \"%ss\",\n" typ;
+ pr " \"lvm\", \"%ss\",\n" typ;
pr " \"-o\", lvm_%s_cols, \"--unbuffered\", \"--noheadings\",\n" typ;
pr " \"--nosuffix\", \"--separator\", \",\", \"--units\", \"b\", NULL);\n";
pr " if (r == -1) {\n";
(* Generate a list of function names, for debugging in the daemon.. *)
and generate_daemon_names () =
- generate_header CStyle GPLv2;
+ generate_header CStyle GPLv2plus;
pr "#include <config.h>\n";
pr "\n";
* guestfs_available.
*)
and generate_daemon_optgroups_c () =
- generate_header CStyle GPLv2;
+ generate_header CStyle GPLv2plus;
pr "#include <config.h>\n";
pr "\n";
pr "};\n"
and generate_daemon_optgroups_h () =
- generate_header CStyle GPLv2;
+ generate_header CStyle GPLv2plus;
List.iter (
fun (group, _) ->
(* Generate the tests. *)
and generate_tests () =
- generate_header CStyle GPLv2;
+ generate_header CStyle GPLv2plus;
pr "\
#include <stdio.h>
/* FIXME: nearly identical code appears in fish.c */
static void print_strings (char *const *argv)
{
- int argc;
+ size_t argc;
for (argc = 0; argv[argc] != NULL; ++argc)
printf (\"\\t%%s\\n\", argv[argc]);
/*
static void print_table (char const *const *argv)
{
- int i;
+ size_t i;
for (i = 0; argv[i] != NULL; i += 2)
printf (\"%%s: %%s\\n\", argv[i], argv[i+1]);
}
*/
+static int
+is_available (const char *group)
+{
+ const char *groups[] = { group, NULL };
+ int r;
+
+ suppress_error = 1;
+ r = guestfs_available (g, (char **) groups);
+ suppress_error = 0;
+
+ return r == 0;
+}
+
+static void
+incr (guestfs_h *g, void *iv)
+{
+ int *i = (int *) iv;
+ (*i)++;
+}
+
";
(* Generate a list of commands which are not tested anywhere. *)
fun (_, _, _, _, tests, _, _) ->
let tests = filter_map (
function
- | (_, (Always|If _|Unless _), test) -> Some test
+ | (_, (Always|If _|Unless _|IfAvailable _), test) -> Some test
| (_, Disabled, _) -> None
) tests in
let seq = List.concat (List.map seq_of_test tests) in
exit (EXIT_FAILURE);
}
+ /* Set a timeout in case qemu hangs during launch (RHBZ#505329). */
+ alarm (600);
+
if (guestfs_launch (g) == -1) {
printf (\"guestfs_launch FAILED\\n\");
exit (EXIT_FAILURE);
}
- /* Set a timeout in case qemu hangs during launch (RHBZ#505329). */
- alarm (600);
-
/* Cancel previous alarm. */
alarm (0);
iteri (
fun i test_name ->
pr " test_num++;\n";
+ pr " if (guestfs_get_verbose (g))\n";
+ pr " printf (\"-------------------------------------------------------------------------------\\n\");\n";
pr " printf (\"%%3d/%%3d %s\\n\", test_num, nr_tests);\n" test_name;
pr " if (%s () == -1) {\n" test_name;
pr " printf (\"%s FAILED\\n\");\n" test_name;
) test_names;
pr "\n";
- pr " guestfs_close (g);\n";
- pr " unlink (\"test1.img\");\n";
- pr " unlink (\"test2.img\");\n";
- pr " unlink (\"test3.img\");\n";
- pr "\n";
+ pr " /* Check close callback is called. */
+ int close_sentinel = 1;
+ guestfs_set_close_callback (g, incr, &close_sentinel);
+
+ guestfs_close (g);
+
+ if (close_sentinel != 2) {
+ fprintf (stderr, \"close callback was not called\\n\");
+ exit (EXIT_FAILURE);
+ }
+
+ unlink (\"test1.img\");
+ unlink (\"test2.img\");
+ unlink (\"test3.img\");
+
+";
pr " if (n_failed > 0) {\n";
pr " printf (\"***** %%lu / %%d tests FAILED *****\\n\", n_failed, nr_tests);\n";
" test_name name (String.uppercase test_name) (String.uppercase name);
(match prereq with
- | Disabled | Always -> ()
+ | Disabled | Always | IfAvailable _ -> ()
| If code | Unless code ->
pr "static int %s_prereq (void)\n" test_name;
pr "{\n";
List.iter (
function
| Optional group ->
- pr " {\n";
- pr " const char *groups[] = { \"%s\", NULL };\n" group;
- pr " int r;\n";
- pr " suppress_error = 1;\n";
- pr " r = guestfs_available (g, (char **) groups);\n";
- pr " suppress_error = 0;\n";
- pr " if (r == -1) {\n";
- pr " printf (\" %%s skipped (reason: group %%s not available in daemon)\\n\", \"%s\", groups[0]);\n" test_name;
- pr " return 0;\n";
- pr " }\n";
+ pr " if (!is_available (\"%s\")) {\n" group;
+ pr " printf (\" %%s skipped (reason: group %%s not available in daemon)\\n\", \"%s\", \"%s\");\n" test_name group;
+ pr " return 0;\n";
pr " }\n";
| _ -> ()
) flags;
pr " }\n";
pr "\n";
generate_one_test_body name i test_name init test;
+ | IfAvailable group ->
+ pr " if (!is_available (\"%s\")) {\n" group;
+ pr " printf (\" %%s skipped (reason: %%s not available)\\n\", \"%s\", \"%s\");\n" test_name group;
+ pr " return 0;\n";
+ pr " }\n";
+ pr "\n";
+ generate_one_test_body name i test_name init test;
| Always ->
generate_one_test_body name i test_name init test
);
["lvm_remove_all"];
["part_disk"; "/dev/sda"; "mbr"];
["mkfs"; "ext2"; "/dev/sda1"];
- ["mount"; "/dev/sda1"; "/"]]
+ ["mount_options"; ""; "/dev/sda1"; "/"]]
| InitBasicFSonLVM ->
pr " /* InitBasicFSonLVM for %s: create ext2 on /dev/VG/LV */\n"
test_name;
["vgcreate"; "VG"; "/dev/sda1"];
["lvcreate"; "LV"; "VG"; "8"];
["mkfs"; "ext2"; "/dev/VG/LV"];
- ["mount"; "/dev/VG/LV"; "/"]]
+ ["mount_options"; ""; "/dev/VG/LV"; "/"]]
| InitISOFS ->
pr " /* InitISOFS for %s */\n" test_name;
List.iter (generate_test_command_call test_name)
| Device n, arg
| Dev_or_Path n, arg
| String n, arg
- | OptString n, arg ->
+ | OptString n, arg
+ | Key n, arg ->
+ pr " const char *%s = \"%s\";\n" n (c_quote arg);
+ | BufferIn n, arg ->
pr " const char *%s = \"%s\";\n" n (c_quote arg);
+ pr " size_t %s_size = %d;\n" n (String.length arg)
| Int _, _
| Int64 _, _
| Bool _, _
| FileIn _, _ | FileOut _, _ -> ()
+ | StringList n, "" | DeviceList n, "" ->
+ pr " const char *const %s[1] = { NULL };\n" n
| StringList n, arg | DeviceList n, arg ->
let strs = string_split " " arg in
iteri (
| RString _ -> pr " char *r;\n"; "NULL"
| RStringList _ | RHashtable _ ->
pr " char **r;\n";
- pr " int i;\n";
+ pr " size_t i;\n";
"NULL"
| RStruct (_, typ) ->
pr " struct guestfs_%s *r;\n" typ; "NULL"
| Pathname n, _
| Device n, _ | Dev_or_Path n, _
| String n, _
- | OptString n, _ ->
+ | OptString n, _
+ | Key n, _ ->
pr ", %s" n
+ | BufferIn n, _ ->
+ pr ", %s, %s_size" n n
| FileIn _, arg | FileOut _, arg ->
pr ", \"%s\"" (c_quote arg)
| StringList n, _ | DeviceList n, _ ->
(* Generate a lot of different functions for guestfish. *)
and generate_fish_cmds () =
- generate_header CStyle GPLv2;
+ generate_header CStyle GPLv2plus;
let all_functions =
List.filter (
fun (_, _, _, flags, _, _, _) -> not (List.mem NotInFish flags)
) all_functions_sorted in
+ pr "#include <config.h>\n";
+ pr "\n";
pr "#include <stdio.h>\n";
pr "#include <stdlib.h>\n";
pr "#include <string.h>\n";
pr "\n";
pr "#include <guestfs.h>\n";
pr "#include \"c-ctype.h\"\n";
+ pr "#include \"full-write.h\"\n";
+ pr "#include \"xstrtol.h\"\n";
pr "#include \"fish.h\"\n";
pr "\n";
+ pr "/* Valid suffixes allowed for numbers. See Gnulib xstrtol function. */\n";
+ pr "static const char *xstrtol_suffixes = \"0kKMGTPEZY\";\n";
+ pr "\n";
(* list_commands function, which implements guestfish -h *)
pr "void list_commands (void)\n";
pr "\n";
(* display_command function, which implements guestfish -h cmd *)
- pr "void display_command (const char *cmd)\n";
+ pr "int display_command (const char *cmd)\n";
pr "{\n";
List.iter (
fun (name, style, _, flags, _, shortdesc, longdesc) ->
match snd style with
| [] -> name2
| args ->
+ let args = List.filter (function Key _ -> false | _ -> true) args in
sprintf "%s %s"
name2 (String.concat " " (List.map name_of_argt args)) in
let warnings =
- if List.mem ProtocolLimitWarning flags then
- ("\n\n" ^ protocol_limit_warning)
+ if List.exists (function Key _ -> true | _ -> false) (snd style) then
+ "\n\nThis command has one or more key or passphrase parameters.
+Guestfish will prompt for these separately."
else "" in
+ let warnings =
+ warnings ^
+ if List.mem ProtocolLimitWarning flags then
+ ("\n\n" ^ protocol_limit_warning)
+ else "" in
+
(* For DangerWillRobinson commands, we should probably have
* guestfish prompt before allowing you to use them (especially
* in interactive mode). XXX
pr " || STRCASEEQ (cmd, \"%s\")" name2;
if name <> alias then
pr " || STRCASEEQ (cmd, \"%s\")" alias;
- pr ")\n";
+ pr ") {\n";
pr " pod2text (\"%s\", _(\"%s\"), %S);\n"
name2 shortdesc
("=head1 SYNOPSIS\n\n " ^ synopsis ^ "\n\n" ^
"=head1 DESCRIPTION\n\n" ^
longdesc ^ warnings ^ describe_alias);
+ pr " return 0;\n";
+ pr " }\n";
pr " else\n"
) all_functions;
- pr " display_builtin_command (cmd);\n";
+ pr " return display_builtin_command (cmd);\n";
pr "}\n";
pr "\n";
function
| Device n
| String n
- | OptString n
- | FileIn n
- | FileOut n -> pr " const char *%s;\n" n
+ | OptString n -> pr " const char *%s;\n" n
| Pathname n
- | Dev_or_Path n -> pr " char *%s;\n" n
+ | Dev_or_Path n
+ | FileIn n
+ | FileOut n
+ | Key n -> pr " char *%s;\n" n
+ | BufferIn n ->
+ pr " const char *%s;\n" n;
+ pr " size_t %s_size;\n" n
| StringList n | DeviceList n -> pr " char **%s;\n" n
| Bool n -> pr " int %s;\n" n
| Int n -> pr " int %s;\n" n
) (snd style);
(* Check and convert parameters. *)
- let argc_expected = List.length (snd style) in
+ let argc_expected =
+ let args_no_keys =
+ List.filter (function Key _ -> false | _ -> true) (snd style) in
+ List.length args_no_keys in
pr " if (argc != %d) {\n" argc_expected;
pr " fprintf (stderr, _(\"%%s should have %%d parameter(s)\\n\"), cmd, %d);\n"
argc_expected;
pr " fprintf (stderr, _(\"type 'help %%s' for help on %%s\\n\"), cmd, cmd);\n";
pr " return -1;\n";
pr " }\n";
- iteri (
- fun i ->
- function
- | Device name
- | String name ->
- pr " %s = argv[%d];\n" name i
- | Pathname name
- | Dev_or_Path name ->
- pr " %s = resolve_win_path (argv[%d]);\n" name i;
- pr " if (%s == NULL) return -1;\n" name
- | OptString name ->
- pr " %s = STRNEQ (argv[%d], \"\") ? argv[%d] : NULL;\n"
- name i i
- | FileIn name ->
- pr " %s = STRNEQ (argv[%d], \"-\") ? argv[%d] : \"/dev/stdin\";\n"
- name i i
- | FileOut name ->
- pr " %s = STRNEQ (argv[%d], \"-\") ? argv[%d] : \"/dev/stdout\";\n"
- name i i
- | StringList name | DeviceList name ->
- pr " %s = parse_string_list (argv[%d]);\n" name i;
- pr " if (%s == NULL) return -1;\n" name;
- | Bool name ->
- pr " %s = is_true (argv[%d]) ? 1 : 0;\n" name i
- | Int name ->
- pr " %s = atoi (argv[%d]);\n" name i
- | Int64 name ->
- pr " %s = atoll (argv[%d]);\n" name i
+
+ let parse_integer fn fntyp rtyp range name =
+ pr " {\n";
+ pr " strtol_error xerr;\n";
+ pr " %s r;\n" fntyp;
+ pr "\n";
+ pr " xerr = %s (argv[i++], NULL, 0, &r, xstrtol_suffixes);\n" fn;
+ pr " if (xerr != LONGINT_OK) {\n";
+ pr " fprintf (stderr,\n";
+ pr " _(\"%%s: %%s: invalid integer parameter (%%s returned %%d)\\n\"),\n";
+ pr " cmd, \"%s\", \"%s\", xerr);\n" name fn;
+ pr " return -1;\n";
+ pr " }\n";
+ (match range with
+ | None -> ()
+ | Some (min, max, comment) ->
+ pr " /* %s */\n" comment;
+ pr " if (r < %s || r > %s) {\n" min max;
+ pr " fprintf (stderr, _(\"%%s: %%s: integer out of range\\n\"), cmd, \"%s\");\n"
+ name;
+ pr " return -1;\n";
+ pr " }\n";
+ pr " /* The check above should ensure this assignment does not overflow. */\n";
+ );
+ pr " %s = r;\n" name;
+ pr " }\n";
+ in
+
+ if snd style <> [] then
+ pr " size_t i = 0;\n";
+
+ List.iter (
+ function
+ | Device name
+ | String name ->
+ pr " %s = argv[i++];\n" name
+ | Pathname name
+ | Dev_or_Path name ->
+ pr " %s = resolve_win_path (argv[i++]);\n" name;
+ pr " if (%s == NULL) return -1;\n" name
+ | OptString name ->
+ pr " %s = STRNEQ (argv[i], \"\") ? argv[i] : NULL;\n" name;
+ pr " i++;\n"
+ | BufferIn name ->
+ pr " %s = argv[i];\n" name;
+ pr " %s_size = strlen (argv[i]);\n" name;
+ pr " i++;\n"
+ | FileIn name ->
+ pr " %s = file_in (argv[i++]);\n" name;
+ pr " if (%s == NULL) return -1;\n" name
+ | FileOut name ->
+ pr " %s = file_out (argv[i++]);\n" name;
+ pr " if (%s == NULL) return -1;\n" name
+ | StringList name | DeviceList name ->
+ pr " %s = parse_string_list (argv[i++]);\n" name;
+ pr " if (%s == NULL) return -1;\n" name
+ | Key name ->
+ pr " %s = read_key (\"%s\");\n" name name;
+ pr " if (%s == NULL) return -1;\n" name
+ | Bool name ->
+ pr " %s = is_true (argv[i++]) ? 1 : 0;\n" name
+ | Int name ->
+ let range =
+ let min = "(-(2LL<<30))"
+ and max = "((2LL<<30)-1)"
+ and comment =
+ "The Int type in the generator is a signed 31 bit int." in
+ Some (min, max, comment) in
+ parse_integer "xstrtoll" "long long" "int" range name
+ | Int64 name ->
+ parse_integer "xstrtoll" "long long" "int64_t" None name
) (snd style);
(* Call C API function. *)
- let fn =
- try find_map (function FishAction n -> Some n | _ -> None) flags
- with Not_found -> sprintf "guestfs_%s" name in
- pr " r = %s " fn;
+ pr " r = guestfs_%s " name;
generate_c_call_args ~handle:"g" style;
pr ";\n";
List.iter (
function
- | Device name | String name
- | OptString name | FileIn name | FileOut name | Bool name
- | Int name | Int64 name -> ()
- | Pathname name | Dev_or_Path name ->
+ | Device _ | String _
+ | OptString _ | Bool _
+ | Int _ | Int64 _
+ | BufferIn _ -> ()
+ | Pathname name | Dev_or_Path name | FileOut name
+ | Key name ->
pr " free (%s);\n" name
+ | FileIn name ->
+ pr " free_file_in (%s);\n" name
| StringList name | DeviceList name ->
pr " free_strings (%s);\n" name
) (snd style);
+ (* Any output flags? *)
+ let fish_output =
+ let flags = filter_map (
+ function FishOutput flag -> Some flag | _ -> None
+ ) flags in
+ match flags with
+ | [] -> None
+ | [f] -> Some f
+ | _ ->
+ failwithf "%s: more than one FishOutput flag is not allowed" name in
+
(* Check return value for errors and display command results. *)
(match fst style with
| RErr -> pr " return r;\n"
| RInt _ ->
pr " if (r == -1) return -1;\n";
- pr " printf (\"%%d\\n\", r);\n";
+ (match fish_output with
+ | None ->
+ pr " printf (\"%%d\\n\", r);\n";
+ | Some FishOutputOctal ->
+ pr " printf (\"%%s%%o\\n\", r != 0 ? \"0\" : \"\", r);\n";
+ | Some FishOutputHexadecimal ->
+ pr " printf (\"%%s%%x\\n\", r != 0 ? \"0x\" : \"\", r);\n");
pr " return 0;\n"
| RInt64 _ ->
pr " if (r == -1) return -1;\n";
- pr " printf (\"%%\" PRIi64 \"\\n\", r);\n";
+ (match fish_output with
+ | None ->
+ pr " printf (\"%%\" PRIi64 \"\\n\", r);\n";
+ | Some FishOutputOctal ->
+ pr " printf (\"%%s%%\" PRIo64 \"\\n\", r != 0 ? \"0\" : \"\", r);\n";
+ | Some FishOutputHexadecimal ->
+ pr " printf (\"%%s%%\" PRIx64 \"\\n\", r != 0 ? \"0x\" : \"\", r);\n");
pr " return 0;\n"
| RBool _ ->
pr " if (r == -1) return -1;\n";
pr " return 0;\n"
| RBufferOut _ ->
pr " if (r == NULL) return -1;\n";
- pr " fwrite (r, size, 1, stdout);\n";
+ pr " if (full_write (1, r, size) != size) {\n";
+ pr " perror (\"write\");\n";
+ pr " free (r);\n";
+ pr " return -1;\n";
+ pr " }\n";
pr " free (r);\n";
pr " return 0;\n"
);
) all_functions;
pr " {\n";
pr " fprintf (stderr, _(\"%%s: unknown command\\n\"), cmd);\n";
+ pr " if (command_num == 1)\n";
+ pr " extended_help_message ();\n";
pr " return -1;\n";
pr " }\n";
pr " return 0;\n";
(* Readline completion for guestfish. *)
and generate_fish_completion () =
- generate_header CStyle GPLv2;
+ generate_header CStyle GPLv2plus;
let all_functions =
List.filter (
static char *
generator (const char *text, int state)
{
- static int index, len;
+ static size_t index, len;
const char *name;
if (!state) {
#endif /* HAVE_LIBREADLINE */
-char **do_completion (const char *text, int start, int end)
+#ifdef HAVE_RL_COMPLETION_MATCHES
+#define RL_COMPLETION_MATCHES rl_completion_matches
+#else
+#ifdef HAVE_COMPLETION_MATCHES
+#define RL_COMPLETION_MATCHES completion_matches
+#endif
+#endif /* else just fail if we don't have either symbol */
+
+char **
+do_completion (const char *text, int start, int end)
{
char **matches = NULL;
rl_completion_append_character = ' ';
if (start == 0)
- matches = rl_completion_matches (text, generator);
+ matches = RL_COMPLETION_MATCHES (text, generator);
else if (complete_dest_paths)
- matches = rl_completion_matches (text, complete_dest_paths_generator);
+ matches = RL_COMPLETION_MATCHES (text, complete_dest_paths_generator);
#endif
return matches;
pr " %s" name;
List.iter (
function
- | Pathname n | Device n | Dev_or_Path n | String n -> pr " %s" n
+ | Pathname n | Device n | Dev_or_Path n | String n ->
+ pr " %s" n
| OptString n -> pr " %s" n
| StringList n | DeviceList n -> pr " '%s ...'" n
| Bool _ -> pr " true|false"
| Int n -> pr " %s" n
| Int64 n -> pr " %s" n
| FileIn n | FileOut n -> pr " (%s|-)" n
+ | BufferIn n -> pr " %s" n
+ | Key _ -> () (* keys are entered at a prompt *)
) (snd style);
pr "\n";
pr "\n";
| _ -> false) (snd style) then
pr "Use C<-> instead of a filename to read/write from stdin/stdout.\n\n";
+ if List.exists (function Key _ -> true | _ -> false) (snd style) then
+ pr "This command has one or more key or passphrase parameters.
+Guestfish will prompt for these separately.\n\n";
+
if List.mem ProtocolLimitWarning flags then
pr "%s\n\n" protocol_limit_warning;
| Some txt -> pr "%s\n\n" txt
) all_functions_sorted
+and generate_fish_prep_options_h () =
+ generate_header CStyle GPLv2plus;
+
+ pr "#ifndef PREPOPTS_H\n";
+ pr "\n";
+
+ pr "\
+struct prep {
+ const char *name; /* eg. \"fs\" */
+
+ size_t nr_params; /* optional parameters */
+ struct prep_param *params;
+
+ const char *shortdesc; /* short description */
+ const char *longdesc; /* long description */
+
+ /* functions to implement it */
+ void (*prelaunch) (const char *filename, prep_data *);
+ void (*postlaunch) (const char *filename, prep_data *, const char *device);
+};
+
+struct prep_param {
+ const char *pname; /* parameter name */
+ const char *pdefault; /* parameter default */
+ const char *pdesc; /* parameter description */
+};
+
+extern const struct prep preps[];
+#define NR_PREPS %d
+
+" (List.length prepopts);
+
+ List.iter (
+ fun (name, shortdesc, args, longdesc) ->
+ pr "\
+extern void prep_prelaunch_%s (const char *filename, prep_data *data);
+extern void prep_postlaunch_%s (const char *filename, prep_data *data, const char *device);
+
+" name name;
+ ) prepopts;
+
+ pr "\n";
+ pr "#endif /* PREPOPTS_H */\n"
+
+and generate_fish_prep_options_c () =
+ generate_header CStyle GPLv2plus;
+
+ pr "\
+#include \"fish.h\"
+#include \"prepopts.h\"
+
+";
+
+ List.iter (
+ fun (name, shortdesc, args, longdesc) ->
+ pr "static struct prep_param %s_args[] = {\n" name;
+ List.iter (
+ fun (n, default, desc) ->
+ pr " { \"%s\", \"%s\", \"%s\" },\n" n default desc
+ ) args;
+ pr "};\n";
+ pr "\n";
+ ) prepopts;
+
+ pr "const struct prep preps[] = {\n";
+ List.iter (
+ fun (name, shortdesc, args, longdesc) ->
+ pr " { \"%s\", %d, %s_args,
+ \"%s\",
+ \"%s\",
+ prep_prelaunch_%s, prep_postlaunch_%s },
+"
+ name (List.length args) name
+ (c_quote shortdesc) (c_quote longdesc)
+ name name;
+ ) prepopts;
+ pr "};\n"
+
(* Generate a C function prototype. *)
and generate_prototype ?(extern = true) ?(static = false) ?(semicolon = true)
?(single_line = false) ?(newline = false) ?(in_daemon = false)
| Pathname n
| Device n | Dev_or_Path n
| String n
- | OptString n ->
+ | OptString n
+ | Key n ->
next ();
pr "const char *%s" n
| StringList n | DeviceList n ->
| FileIn n
| FileOut n ->
if not in_daemon then (next (); pr "const char *%s" n)
+ | BufferIn n ->
+ next ();
+ pr "const char *%s" n;
+ next ();
+ pr "size_t %s_size" n
) (snd style);
if is_RBufferOut then (next (); pr "size_t *size_r");
);
| Some handle -> pr "%s" handle; comma := true
);
List.iter (
- fun arg ->
- next ();
- pr "%s" (name_of_argt arg)
+ function
+ | BufferIn n ->
+ next ();
+ pr "%s, %s_size" n n
+ | arg ->
+ next ();
+ pr "%s" (name_of_argt arg)
) (snd style);
(* For RBufferOut calls, add implicit &size parameter. *)
if not decl then (
(* Generate the OCaml bindings interface. *)
and generate_ocaml_mli () =
- generate_header OCamlStyle LGPLv2;
+ generate_header OCamlStyle LGPLv2plus;
pr "\
(** For API documentation you should refer to the C API
unreferenced, but callers can call this in order to provide
predictable cleanup. *)
+type progress_cb = int -> int -> int64 -> int64 -> unit
+
+val set_progress_callback : t -> progress_cb -> unit
+(** [set_progress_callback g f] sets [f] as the progress callback function.
+ For some long-running functions, [f] will be called repeatedly
+ during the function with progress updates.
+
+ The callback is [f proc_nr serial position total]. See
+ the description of [guestfs_set_progress_callback] in guestfs(3)
+ for the meaning of these four numbers.
+
+ Note that if the closure captures a reference to the handle,
+ this reference will prevent the handle from being
+ automatically closed by the garbage collector. There are
+ three ways to avoid this: be careful not to capture the handle
+ in the closure, or use a weak reference, or call
+ {!Guestfs.clear_progress_callback} to remove the reference. *)
+
+val clear_progress_callback : t -> unit
+(** [clear_progress_callback g] removes any progress callback function
+ associated with the handle. See {!Guestfs.set_progress_callback}. *)
+
";
generate_ocaml_structure_decls ();
(* Generate the OCaml bindings implementation. *)
and generate_ocaml_ml () =
- generate_header OCamlStyle LGPLv2;
+ generate_header OCamlStyle LGPLv2plus;
pr "\
type t
external create : unit -> t = \"ocaml_guestfs_create\"
external close : t -> unit = \"ocaml_guestfs_close\"
+type progress_cb = int -> int -> int64 -> int64 -> unit
+
+external set_progress_callback : t -> progress_cb -> unit
+ = \"ocaml_guestfs_set_progress_callback\"
+external clear_progress_callback : t -> unit
+ = \"ocaml_guestfs_clear_progress_callback\"
+
(* Give the exceptions names, so they can be raised from the C code. *)
let () =
Callback.register_exception \"ocaml_guestfs_error\" (Error \"\");
(* Generate the OCaml bindings C implementation. *)
and generate_ocaml_c () =
- generate_header CStyle LGPLv2;
+ generate_header CStyle LGPLv2plus;
pr "\
#include <stdio.h>
#include <caml/mlvalues.h>
#include <caml/signals.h>
-#include <guestfs.h>
+#include \"guestfs.h\"
#include \"guestfs_c.h\"
{
CAMLparam0 ();
CAMLlocal5 (rv, pairv, kv, vv, cons);
- int i;
+ size_t i;
rv = Val_int (0);
for (i = 0; argv[i] != NULL; i += 2) {
| Device n | Dev_or_Path n
| String n
| FileIn n
- | FileOut n ->
- pr " const char *%s = String_val (%sv);\n" n n
+ | FileOut n
+ | Key n ->
+ (* Copy strings in case the GC moves them: RHBZ#604691 *)
+ pr " char *%s = guestfs_safe_strdup (g, String_val (%sv));\n" n n
| OptString n ->
- pr " const char *%s =\n" n;
- pr " %sv != Val_int (0) ? String_val (Field (%sv, 0)) : NULL;\n"
- n n
+ pr " char *%s =\n" n;
+ pr " %sv != Val_int (0) ?" n;
+ pr " guestfs_safe_strdup (g, String_val (Field (%sv, 0))) : NULL;\n" n
+ | BufferIn n ->
+ pr " size_t %s_size = caml_string_length (%sv);\n" n n;
+ pr " char *%s = guestfs_safe_memdup (g, String_val (%sv), %s_size);\n" n n n
| StringList n | DeviceList n ->
pr " char **%s = ocaml_guestfs_strings_val (g, %sv);\n" n n
| Bool n ->
pr " const char *r;\n"; "NULL"
| RString _ -> pr " char *r;\n"; "NULL"
| RStringList _ ->
- pr " int i;\n";
+ pr " size_t i;\n";
pr " char **r;\n";
"NULL"
| RStruct (_, typ) ->
| RStructList (_, typ) ->
pr " struct guestfs_%s_list *r;\n" typ; "NULL"
| RHashtable _ ->
- pr " int i;\n";
+ pr " size_t i;\n";
pr " char **r;\n";
"NULL"
| RBufferOut _ ->
pr ";\n";
pr " caml_leave_blocking_section ();\n";
+ (* Free strings if we copied them above. *)
List.iter (
function
+ | Pathname n | Device n | Dev_or_Path n | String n | OptString n
+ | FileIn n | FileOut n | BufferIn n | Key n ->
+ pr " free (%s);\n" n
| StringList n | DeviceList n ->
pr " ocaml_guestfs_free_strings (%s);\n" n;
- | Pathname _ | Device _ | Dev_or_Path _ | String _ | OptString _
- | Bool _ | Int _ | Int64 _
- | FileIn _ | FileOut _ -> ()
+ | Bool _ | Int _ | Int64 _ -> ()
) (snd style);
pr " if (r == %s)\n" error_code;
pr "%s : t -> " name;
List.iter (
function
- | Pathname _ | Device _ | Dev_or_Path _ | String _ | FileIn _ | FileOut _ -> pr "string -> "
+ | Pathname _ | Device _ | Dev_or_Path _ | String _ | FileIn _ | FileOut _
+ | BufferIn _ | Key _ -> pr "string -> "
| OptString _ -> pr "string option -> "
| StringList _ | DeviceList _ -> pr "string array -> "
| Bool _ -> pr "bool -> "
(* Generate Perl xs code, a sort of crazy variation of C with macros. *)
and generate_perl_xs () =
- generate_header CStyle LGPLv2;
+ generate_header CStyle LGPLv2plus;
pr "\
#include \"EXTERN.h\"
return ret;
}
+#define PROGRESS_KEY \"_perl_progress_cb\"
+
+static void
+_clear_progress_callback (guestfs_h *g)
+{
+ guestfs_set_progress_callback (g, NULL, NULL);
+ SV *cb = guestfs_get_private (g, PROGRESS_KEY);
+ if (cb) {
+ guestfs_set_private (g, PROGRESS_KEY, NULL);
+ SvREFCNT_dec (cb);
+ }
+}
+
+/* http://www.perlmonks.org/?node=338857 */
+static void
+_progress_callback (guestfs_h *g, void *cb,
+ int proc_nr, int serial, uint64_t position, uint64_t total)
+{
+ dSP;
+ ENTER;
+ SAVETMPS;
+ PUSHMARK (SP);
+ XPUSHs (sv_2mortal (newSViv (proc_nr)));
+ XPUSHs (sv_2mortal (newSViv (serial)));
+ XPUSHs (sv_2mortal (my_newSVull (position)));
+ XPUSHs (sv_2mortal (my_newSVull (total)));
+ PUTBACK;
+ call_sv ((SV *) cb, G_VOID | G_DISCARD | G_EVAL);
+ FREETMPS;
+ LEAVE;
+}
+
+static void
+_close_handle (guestfs_h *g)
+{
+ assert (g != NULL);
+ _clear_progress_callback (g);
+ guestfs_close (g);
+}
+
MODULE = Sys::Guestfs PACKAGE = Sys::Guestfs
PROTOTYPES: ENABLE
RETVAL
void
-DESTROY (g)
+DESTROY (sv)
+ SV *sv;
+ PPCODE:
+ /* For the 'g' argument above we do the conversion explicitly and
+ * don't rely on the typemap, because if the handle has been
+ * explicitly closed we don't want the typemap conversion to
+ * display an error.
+ */
+ HV *hv = (HV *) SvRV (sv);
+ SV **svp = hv_fetch (hv, \"_g\", 2, 0);
+ if (svp != NULL) {
+ guestfs_h *g = (guestfs_h *) SvIV (*svp);
+ _close_handle (g);
+ }
+
+void
+close (g)
+ guestfs_h *g;
+ PPCODE:
+ _close_handle (g);
+ /* Avoid double-free in DESTROY method. */
+ HV *hv = (HV *) SvRV (ST(0));
+ (void) hv_delete (hv, \"_g\", 2, G_DISCARD);
+
+void
+set_progress_callback (g, cb)
+ guestfs_h *g;
+ SV *cb;
+ PPCODE:
+ _clear_progress_callback (g);
+ SvREFCNT_inc (cb);
+ guestfs_set_private (g, PROGRESS_KEY, cb);
+ guestfs_set_progress_callback (g, _progress_callback, cb);
+
+void
+clear_progress_callback (g)
guestfs_h *g;
PPCODE:
- guestfs_close (g);
+ _clear_progress_callback (g);
";
pr "void\n" (* all lists returned implictly on the stack *)
);
(* Call and arguments. *)
- pr "%s " name;
- generate_c_call_args ~handle:"g" ~decl:true style;
- pr "\n";
+ pr "%s (g" name;
+ List.iter (
+ fun arg -> pr ", %s" (name_of_argt arg)
+ ) (snd style);
+ pr ")\n";
pr " guestfs_h *g;\n";
iteri (
fun i ->
function
- | Pathname n | Device n | Dev_or_Path n | String n | FileIn n | FileOut n ->
+ | Pathname n | Device n | Dev_or_Path n | String n
+ | FileIn n | FileOut n | Key n ->
pr " char *%s;\n" n
+ | BufferIn n ->
+ pr " char *%s;\n" n;
+ pr " size_t %s_size = SvCUR (ST(%d));\n" n (i+1)
| OptString n ->
(* http://www.perlmonks.org/?node_id=554277
* Note that the implicit handle argument means we have
function
| Pathname _ | Device _ | Dev_or_Path _ | String _ | OptString _
| Bool _ | Int _ | Int64 _
- | FileIn _ | FileOut _ -> ()
+ | FileIn _ | FileOut _
+ | BufferIn _ | Key _ -> ()
| StringList n | DeviceList n -> pr " free (%s);\n" n
) (snd style)
in
pr ";\n";
do_cleanups ();
pr " if (r == -1)\n";
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
| RInt n
| RBool n ->
pr "PREINIT:\n";
pr ";\n";
do_cleanups ();
pr " if (%s == -1)\n" n;
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
pr " RETVAL = newSViv (%s);\n" n;
pr " OUTPUT:\n";
pr " RETVAL\n"
pr ";\n";
do_cleanups ();
pr " if (%s == -1)\n" n;
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
pr " RETVAL = my_newSVll (%s);\n" n;
pr " OUTPUT:\n";
pr " RETVAL\n"
pr ";\n";
do_cleanups ();
pr " if (%s == NULL)\n" n;
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
pr " RETVAL = newSVpv (%s, 0);\n" n;
pr " OUTPUT:\n";
pr " RETVAL\n"
pr ";\n";
do_cleanups ();
pr " if (%s == NULL)\n" n;
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
pr " RETVAL = newSVpv (%s, 0);\n" n;
pr " free (%s);\n" n;
pr " OUTPUT:\n";
| RStringList n | RHashtable n ->
pr "PREINIT:\n";
pr " char **%s;\n" n;
- pr " int i, n;\n";
+ pr " size_t i, n;\n";
pr " PPCODE:\n";
pr " %s = guestfs_%s " n name;
generate_c_call_args ~handle:"g" style;
pr ";\n";
do_cleanups ();
pr " if (%s == NULL)\n" n;
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
pr " for (n = 0; %s[n] != NULL; ++n) /**/;\n" n;
pr " EXTEND (SP, n);\n";
pr " for (i = 0; i < n; ++i) {\n";
pr ";\n";
do_cleanups ();
pr " if (%s == NULL)\n" n;
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
- pr " RETVAL = newSVpv (%s, size);\n" n;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
+ pr " RETVAL = newSVpvn (%s, size);\n" n;
pr " free (%s);\n" n;
pr " OUTPUT:\n";
pr " RETVAL\n"
);
- pr "\n"
- ) all_functions
+ pr "\n"
+ ) all_functions
+
+and generate_perl_struct_list_code typ cols name style n do_cleanups =
+ pr "PREINIT:\n";
+ pr " struct guestfs_%s_list *%s;\n" typ n;
+ pr " size_t i;\n";
+ pr " HV *hv;\n";
+ pr " PPCODE:\n";
+ pr " %s = guestfs_%s " n name;
+ generate_c_call_args ~handle:"g" style;
+ pr ";\n";
+ do_cleanups ();
+ pr " if (%s == NULL)\n" n;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
+ pr " EXTEND (SP, %s->len);\n" n;
+ pr " for (i = 0; i < %s->len; ++i) {\n" n;
+ pr " hv = newHV ();\n";
+ List.iter (
+ function
+ | name, FString ->
+ pr " (void) hv_store (hv, \"%s\", %d, newSVpv (%s->val[i].%s, 0), 0);\n"
+ name (String.length name) n name
+ | name, FUUID ->
+ pr " (void) hv_store (hv, \"%s\", %d, newSVpv (%s->val[i].%s, 32), 0);\n"
+ name (String.length name) n name
+ | name, FBuffer ->
+ pr " (void) hv_store (hv, \"%s\", %d, newSVpvn (%s->val[i].%s, %s->val[i].%s_len), 0);\n"
+ name (String.length name) n name n name
+ | name, (FBytes|FUInt64) ->
+ pr " (void) hv_store (hv, \"%s\", %d, my_newSVull (%s->val[i].%s), 0);\n"
+ name (String.length name) n name
+ | name, FInt64 ->
+ pr " (void) hv_store (hv, \"%s\", %d, my_newSVll (%s->val[i].%s), 0);\n"
+ name (String.length name) n name
+ | name, (FInt32|FUInt32) ->
+ pr " (void) hv_store (hv, \"%s\", %d, newSVnv (%s->val[i].%s), 0);\n"
+ name (String.length name) n name
+ | name, FChar ->
+ pr " (void) hv_store (hv, \"%s\", %d, newSVpv (&%s->val[i].%s, 1), 0);\n"
+ name (String.length name) n name
+ | name, FOptPercent ->
+ pr " (void) hv_store (hv, \"%s\", %d, newSVnv (%s->val[i].%s), 0);\n"
+ name (String.length name) n name
+ ) cols;
+ pr " PUSHs (sv_2mortal (newRV ((SV *) hv)));\n";
+ pr " }\n";
+ pr " guestfs_free_%s_list (%s);\n" typ n
+
+and generate_perl_struct_code typ cols name style n do_cleanups =
+ pr "PREINIT:\n";
+ pr " struct guestfs_%s *%s;\n" typ n;
+ pr " PPCODE:\n";
+ pr " %s = guestfs_%s " n name;
+ generate_c_call_args ~handle:"g" style;
+ pr ";\n";
+ do_cleanups ();
+ pr " if (%s == NULL)\n" n;
+ pr " croak (\"%%s\", guestfs_last_error (g));\n";
+ pr " EXTEND (SP, 2 * %d);\n" (List.length cols);
+ List.iter (
+ fun ((name, _) as col) ->
+ pr " PUSHs (sv_2mortal (newSVpv (\"%s\", 0)));\n" name;
+
+ match col with
+ | name, FString ->
+ pr " PUSHs (sv_2mortal (newSVpv (%s->%s, 0)));\n"
+ n name
+ | name, FBuffer ->
+ pr " PUSHs (sv_2mortal (newSVpvn (%s->%s, %s->%s_len)));\n"
+ n name n name
+ | name, FUUID ->
+ pr " PUSHs (sv_2mortal (newSVpv (%s->%s, 32)));\n"
+ n name
+ | name, (FBytes|FUInt64) ->
+ pr " PUSHs (sv_2mortal (my_newSVull (%s->%s)));\n"
+ n name
+ | name, FInt64 ->
+ pr " PUSHs (sv_2mortal (my_newSVll (%s->%s)));\n"
+ n name
+ | name, (FInt32|FUInt32) ->
+ pr " PUSHs (sv_2mortal (newSVnv (%s->%s)));\n"
+ n name
+ | name, FChar ->
+ pr " PUSHs (sv_2mortal (newSVpv (&%s->%s, 1)));\n"
+ n name
+ | name, FOptPercent ->
+ pr " PUSHs (sv_2mortal (newSVnv (%s->%s)));\n"
+ n name
+ ) cols;
+ pr " free (%s);\n" n
+
+(* Generate Sys/Guestfs.pm. *)
+and generate_perl_pm () =
+ generate_header HashStyle LGPLv2plus;
+
+ pr "\
+=pod
+
+=head1 NAME
+
+Sys::Guestfs - Perl bindings for libguestfs
+
+=head1 SYNOPSIS
+
+ use Sys::Guestfs;
+
+ my $h = Sys::Guestfs->new ();
+ $h->add_drive ('guest.img');
+ $h->launch ();
+ $h->mount ('/dev/sda1', '/');
+ $h->touch ('/hello');
+ $h->sync ();
+
+=head1 DESCRIPTION
+
+The C<Sys::Guestfs> module provides a Perl XS binding to the
+libguestfs API for examining and modifying virtual machine
+disk images.
+
+Amongst the things this is good for: making batch configuration
+changes to guests, getting disk used/free statistics (see also:
+virt-df), migrating between virtualization systems (see also:
+virt-p2v), performing partial backups, performing partial guest
+clones, cloning guests and changing registry/UUID/hostname info, and
+much else besides.
+
+Libguestfs uses Linux kernel and qemu code, and can access any type of
+guest filesystem that Linux and qemu can, including but not limited
+to: ext2/3/4, btrfs, FAT and NTFS, LVM, many different disk partition
+schemes, qcow, qcow2, vmdk.
+
+Libguestfs provides ways to enumerate guest storage (eg. partitions,
+LVs, what filesystem is in each LV, etc.). It can also run commands
+in the context of the guest. Also you can access filesystems over
+FUSE.
+
+See also L<Sys::Guestfs::Lib(3)> for a set of useful library
+functions for using libguestfs from Perl, including integration
+with libvirt.
+
+=head1 ERRORS
+
+All errors turn into calls to C<croak> (see L<Carp(3)>).
+
+=head1 METHODS
+
+=over 4
+
+=cut
+
+package Sys::Guestfs;
+
+use strict;
+use warnings;
+
+# This version number changes whenever a new function
+# is added to the libguestfs API. It is not directly
+# related to the libguestfs version number.
+use vars qw($VERSION);
+$VERSION = '0.%d';
+
+require XSLoader;
+XSLoader::load ('Sys::Guestfs');
+
+=item $h = Sys::Guestfs->new ();
+
+Create a new guestfs handle.
+
+=cut
+
+sub new {
+ my $proto = shift;
+ my $class = ref ($proto) || $proto;
+
+ my $g = Sys::Guestfs::_create ();
+ my $self = { _g => $g };
+ bless $self, $class;
+ return $self;
+}
+
+=item $h->close ();
+
+Explicitly close the guestfs handle.
+
+B<Note:> You should not usually call this function. The handle will
+be closed implicitly when its reference count goes to zero (eg.
+when it goes out of scope or the program ends). This call is
+only required in some exceptional cases, such as where the program
+may contain cached references to the handle 'somewhere' and you
+really have to have the close happen right away. After calling
+C<close> the program must not call any method (including C<close>)
+on the handle (but the implicit call to C<DESTROY> that happens
+when the final reference is cleaned up is OK).
+
+=item $h->set_progress_callback (\\&cb);
+
+Set the progress notification callback for this handle
+to the Perl closure C<cb>.
+
+C<cb> will be called whenever a long-running operation
+generates a progress notification message. The 4 parameters
+to the function are: C<proc_nr>, C<serial>, C<position>
+and C<total>.
+
+You should carefully read the documentation for
+L<guestfs(3)/guestfs_set_progress_callback> before using
+this function.
+
+=item $h->clear_progress_callback ();
+
+This removes any progress callback function associated with
+the handle.
+
+=cut
+
+" max_proc_nr;
+
+ (* Actions. We only need to print documentation for these as
+ * they are pulled in from the XS code automatically.
+ *)
+ List.iter (
+ fun (name, style, _, flags, _, _, longdesc) ->
+ if not (List.mem NotInDocs flags) then (
+ let longdesc = replace_str longdesc "C<guestfs_" "C<$h-E<gt>" in
+ pr "=item ";
+ generate_perl_prototype name style;
+ pr "\n\n";
+ pr "%s\n\n" longdesc;
+ if List.mem ProtocolLimitWarning flags then
+ pr "%s\n\n" protocol_limit_warning;
+ if List.mem DangerWillRobinson flags then
+ pr "%s\n\n" danger_will_robinson;
+ match deprecation_notice flags with
+ | None -> ()
+ | Some txt -> pr "%s\n\n" txt
+ )
+ ) all_functions_sorted;
+
+ (* End of file. *)
+ pr "\
+=cut
+
+1;
+
+=back
+
+=head1 AVAILABILITY
+
+From time to time we add new libguestfs APIs. Also some libguestfs
+APIs won't be available in all builds of libguestfs (the Fedora
+build is full-featured, but other builds may disable features).
+How do you test whether the APIs that your Perl program needs are
+available in the version of C<Sys::Guestfs> that you are using?
+
+To test if a particular function is available in the C<Sys::Guestfs>
+class, use the ordinary Perl UNIVERSAL method C<can(METHOD)>
+(see L<perlobj(1)>). For example:
+
+ use Sys::Guestfs;
+ if (defined (Sys::Guestfs->can (\"set_verbose\"))) {
+ print \"\\$h->set_verbose is available\\n\";
+ }
+
+To test if particular features are supported by the current
+build, use the L</available> method like the example below. Note
+that the appliance must be launched first.
+
+ $h->available ( [\"augeas\"] );
+
+Since the L</available> method croaks if the feature is not supported,
+you might also want to wrap this in an eval and return a boolean.
+In fact this has already been done for you: use
+L<Sys::Guestfs::Lib(3)/feature_available>.
+
+For further discussion on this topic, refer to
+L<guestfs(3)/AVAILABILITY>.
+
+=head1 STORING DATA IN THE HANDLE
+
+The handle returned from L</new> is a hash reference. The hash
+normally contains a single element:
+
+ {
+ _g => [private data used by libguestfs]
+ }
+
+Callers can add other elements to this hash to store data for their own
+purposes. The data lasts for the lifetime of the handle.
+
+Any fields whose names begin with an underscore are reserved
+for private use by libguestfs. We may add more in future.
+
+It is recommended that callers prefix the name of their field(s)
+with some unique string, to avoid conflicts with other users.
+
+=head1 COPYRIGHT
+
+Copyright (C) %s Red Hat Inc.
+
+=head1 LICENSE
+
+Please see the file COPYING.LIB for the full license.
+
+=head1 SEE ALSO
+
+L<guestfs(3)>,
+L<guestfish(1)>,
+L<http://libguestfs.org>,
+L<Sys::Guestfs::Lib(3)>.
+
+=cut
+" copyright_years
+
+and generate_perl_prototype name style =
+ (match fst style with
+ | RErr -> ()
+ | RBool n
+ | RInt n
+ | RInt64 n
+ | RConstString n
+ | RConstOptString n
+ | RString n
+ | RBufferOut n -> pr "$%s = " n
+ | RStruct (n,_)
+ | RHashtable n -> pr "%%%s = " n
+ | RStringList n
+ | RStructList (n,_) -> pr "@%s = " n
+ );
+ pr "$h->%s (" name;
+ let comma = ref false in
+ List.iter (
+ fun arg ->
+ if !comma then pr ", ";
+ comma := true;
+ match arg with
+ | Pathname n | Device n | Dev_or_Path n | String n
+ | OptString n | Bool n | Int n | Int64 n | FileIn n | FileOut n
+ | BufferIn n | Key n ->
+ pr "$%s" n
+ | StringList n | DeviceList n ->
+ pr "\\@%s" n
+ ) (snd style);
+ pr ");"
+
+(* Generate Python C module. *)
+and generate_python_c () =
+ generate_header CStyle LGPLv2plus;
-and generate_perl_struct_list_code typ cols name style n do_cleanups =
- pr "PREINIT:\n";
- pr " struct guestfs_%s_list *%s;\n" typ n;
- pr " int i;\n";
- pr " HV *hv;\n";
- pr " PPCODE:\n";
- pr " %s = guestfs_%s " n name;
- generate_c_call_args ~handle:"g" style;
- pr ";\n";
- do_cleanups ();
- pr " if (%s == NULL)\n" n;
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
- pr " EXTEND (SP, %s->len);\n" n;
- pr " for (i = 0; i < %s->len; ++i) {\n" n;
- pr " hv = newHV ();\n";
- List.iter (
- function
- | name, FString ->
- pr " (void) hv_store (hv, \"%s\", %d, newSVpv (%s->val[i].%s, 0), 0);\n"
- name (String.length name) n name
- | name, FUUID ->
- pr " (void) hv_store (hv, \"%s\", %d, newSVpv (%s->val[i].%s, 32), 0);\n"
- name (String.length name) n name
- | name, FBuffer ->
- pr " (void) hv_store (hv, \"%s\", %d, newSVpv (%s->val[i].%s, %s->val[i].%s_len), 0);\n"
- name (String.length name) n name n name
- | name, (FBytes|FUInt64) ->
- pr " (void) hv_store (hv, \"%s\", %d, my_newSVull (%s->val[i].%s), 0);\n"
- name (String.length name) n name
- | name, FInt64 ->
- pr " (void) hv_store (hv, \"%s\", %d, my_newSVll (%s->val[i].%s), 0);\n"
- name (String.length name) n name
- | name, (FInt32|FUInt32) ->
- pr " (void) hv_store (hv, \"%s\", %d, newSVnv (%s->val[i].%s), 0);\n"
- name (String.length name) n name
- | name, FChar ->
- pr " (void) hv_store (hv, \"%s\", %d, newSVpv (&%s->val[i].%s, 1), 0);\n"
- name (String.length name) n name
- | name, FOptPercent ->
- pr " (void) hv_store (hv, \"%s\", %d, newSVnv (%s->val[i].%s), 0);\n"
- name (String.length name) n name
- ) cols;
- pr " PUSHs (sv_2mortal (newRV ((SV *) hv)));\n";
- pr " }\n";
- pr " guestfs_free_%s_list (%s);\n" typ n
+ pr "\
+#define PY_SSIZE_T_CLEAN 1
+#include <Python.h>
-and generate_perl_struct_code typ cols name style n do_cleanups =
- pr "PREINIT:\n";
- pr " struct guestfs_%s *%s;\n" typ n;
- pr " PPCODE:\n";
- pr " %s = guestfs_%s " n name;
- generate_c_call_args ~handle:"g" style;
- pr ";\n";
- do_cleanups ();
- pr " if (%s == NULL)\n" n;
- pr " croak (\"%s: %%s\", guestfs_last_error (g));\n" name;
- pr " EXTEND (SP, 2 * %d);\n" (List.length cols);
- List.iter (
- fun ((name, _) as col) ->
- pr " PUSHs (sv_2mortal (newSVpv (\"%s\", 0)));\n" name;
+#if PY_VERSION_HEX < 0x02050000
+typedef int Py_ssize_t;
+#define PY_SSIZE_T_MAX INT_MAX
+#define PY_SSIZE_T_MIN INT_MIN
+#endif
- match col with
- | name, FString ->
- pr " PUSHs (sv_2mortal (newSVpv (%s->%s, 0)));\n"
- n name
- | name, FBuffer ->
- pr " PUSHs (sv_2mortal (newSVpv (%s->%s, %s->%s_len)));\n"
- n name n name
- | name, FUUID ->
- pr " PUSHs (sv_2mortal (newSVpv (%s->%s, 32)));\n"
- n name
- | name, (FBytes|FUInt64) ->
- pr " PUSHs (sv_2mortal (my_newSVull (%s->%s)));\n"
- n name
- | name, FInt64 ->
- pr " PUSHs (sv_2mortal (my_newSVll (%s->%s)));\n"
- n name
- | name, (FInt32|FUInt32) ->
- pr " PUSHs (sv_2mortal (newSVnv (%s->%s)));\n"
- n name
- | name, FChar ->
- pr " PUSHs (sv_2mortal (newSVpv (&%s->%s, 1)));\n"
- n name
- | name, FOptPercent ->
- pr " PUSHs (sv_2mortal (newSVnv (%s->%s)));\n"
- n name
- ) cols;
- pr " free (%s);\n" n
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
-(* Generate Sys/Guestfs.pm. *)
-and generate_perl_pm () =
- generate_header HashStyle LGPLv2;
+#include \"guestfs.h\"
- pr "\
-=pod
+#ifndef HAVE_PYCAPSULE_NEW
+typedef struct {
+ PyObject_HEAD
+ guestfs_h *g;
+} Pyguestfs_Object;
+#endif
-=head1 NAME
+static guestfs_h *
+get_handle (PyObject *obj)
+{
+ assert (obj);
+ assert (obj != Py_None);
+#ifndef HAVE_PYCAPSULE_NEW
+ return ((Pyguestfs_Object *) obj)->g;
+#else
+ return (guestfs_h*) PyCapsule_GetPointer(obj, \"guestfs_h\");
+#endif
+}
-Sys::Guestfs - Perl bindings for libguestfs
+static PyObject *
+put_handle (guestfs_h *g)
+{
+ assert (g);
+#ifndef HAVE_PYCAPSULE_NEW
+ return
+ PyCObject_FromVoidPtrAndDesc ((void *) g, (char *) \"guestfs_h\", NULL);
+#else
+ return PyCapsule_New ((void *) g, \"guestfs_h\", NULL);
+#endif
+}
-=head1 SYNOPSIS
+/* This list should be freed (but not the strings) after use. */
+static char **
+get_string_list (PyObject *obj)
+{
+ size_t i, len;
+ char **r;
- use Sys::Guestfs;
+ assert (obj);
- my $h = Sys::Guestfs->new ();
- $h->add_drive ('guest.img');
- $h->launch ();
- $h->mount ('/dev/sda1', '/');
- $h->touch ('/hello');
- $h->sync ();
+ if (!PyList_Check (obj)) {
+ PyErr_SetString (PyExc_RuntimeError, \"expecting a list parameter\");
+ return NULL;
+ }
-=head1 DESCRIPTION
+ Py_ssize_t slen = PyList_Size (obj);
+ if (slen == -1) {
+ PyErr_SetString (PyExc_RuntimeError, \"get_string_list: PyList_Size failure\");
+ return NULL;
+ }
+ len = (size_t) slen;
+ r = malloc (sizeof (char *) * (len+1));
+ if (r == NULL) {
+ PyErr_SetString (PyExc_RuntimeError, \"get_string_list: out of memory\");
+ return NULL;
+ }
-The C<Sys::Guestfs> module provides a Perl XS binding to the
-libguestfs API for examining and modifying virtual machine
-disk images.
+ for (i = 0; i < len; ++i)
+ r[i] = PyString_AsString (PyList_GetItem (obj, i));
+ r[len] = NULL;
-Amongst the things this is good for: making batch configuration
-changes to guests, getting disk used/free statistics (see also:
-virt-df), migrating between virtualization systems (see also:
-virt-p2v), performing partial backups, performing partial guest
-clones, cloning guests and changing registry/UUID/hostname info, and
-much else besides.
+ return r;
+}
-Libguestfs uses Linux kernel and qemu code, and can access any type of
-guest filesystem that Linux and qemu can, including but not limited
-to: ext2/3/4, btrfs, FAT and NTFS, LVM, many different disk partition
-schemes, qcow, qcow2, vmdk.
+static PyObject *
+put_string_list (char * const * const argv)
+{
+ PyObject *list;
+ int argc, i;
-Libguestfs provides ways to enumerate guest storage (eg. partitions,
-LVs, what filesystem is in each LV, etc.). It can also run commands
-in the context of the guest. Also you can access filesystems over FTP.
+ for (argc = 0; argv[argc] != NULL; ++argc)
+ ;
-See also L<Sys::Guestfs::Lib(3)> for a set of useful library
-functions for using libguestfs from Perl, including integration
-with libvirt.
+ list = PyList_New (argc);
+ for (i = 0; i < argc; ++i)
+ PyList_SetItem (list, i, PyString_FromString (argv[i]));
+
+ return list;
+}
+
+static PyObject *
+put_table (char * const * const argv)
+{
+ PyObject *list, *item;
+ int argc, i;
+
+ for (argc = 0; argv[argc] != NULL; ++argc)
+ ;
+
+ list = PyList_New (argc >> 1);
+ for (i = 0; i < argc; i += 2) {
+ item = PyTuple_New (2);
+ PyTuple_SetItem (item, 0, PyString_FromString (argv[i]));
+ PyTuple_SetItem (item, 1, PyString_FromString (argv[i+1]));
+ PyList_SetItem (list, i >> 1, item);
+ }
+
+ return list;
+}
+
+static void
+free_strings (char **argv)
+{
+ int argc;
+
+ for (argc = 0; argv[argc] != NULL; ++argc)
+ free (argv[argc]);
+ free (argv);
+}
+
+static PyObject *
+py_guestfs_create (PyObject *self, PyObject *args)
+{
+ guestfs_h *g;
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ PyErr_SetString (PyExc_RuntimeError,
+ \"guestfs.create: failed to allocate handle\");
+ return NULL;
+ }
+ guestfs_set_error_handler (g, NULL, NULL);
+ /* This can return NULL, but in that case put_handle will have
+ * set the Python error string.
+ */
+ return put_handle (g);
+}
+
+static PyObject *
+py_guestfs_close (PyObject *self, PyObject *args)
+{
+ PyObject *py_g;
+ guestfs_h *g;
+
+ if (!PyArg_ParseTuple (args, (char *) \"O:guestfs_close\", &py_g))
+ return NULL;
+ g = get_handle (py_g);
+
+ guestfs_close (g);
+
+ Py_INCREF (Py_None);
+ return Py_None;
+}
-=head1 ERRORS
+";
-All errors turn into calls to C<croak> (see L<Carp(3)>).
+ let emit_put_list_function typ =
+ pr "static PyObject *\n";
+ pr "put_%s_list (struct guestfs_%s_list *%ss)\n" typ typ typ;
+ pr "{\n";
+ pr " PyObject *list;\n";
+ pr " size_t i;\n";
+ pr "\n";
+ pr " list = PyList_New (%ss->len);\n" typ;
+ pr " for (i = 0; i < %ss->len; ++i)\n" typ;
+ pr " PyList_SetItem (list, i, put_%s (&%ss->val[i]));\n" typ typ;
+ pr " return list;\n";
+ pr "};\n";
+ pr "\n"
+ in
-=head1 METHODS
+ (* Structures, turned into Python dictionaries. *)
+ List.iter (
+ fun (typ, cols) ->
+ pr "static PyObject *\n";
+ pr "put_%s (struct guestfs_%s *%s)\n" typ typ typ;
+ pr "{\n";
+ pr " PyObject *dict;\n";
+ pr "\n";
+ pr " dict = PyDict_New ();\n";
+ List.iter (
+ function
+ | name, FString ->
+ pr " PyDict_SetItemString (dict, \"%s\",\n" name;
+ pr " PyString_FromString (%s->%s));\n"
+ typ name
+ | name, FBuffer ->
+ pr " PyDict_SetItemString (dict, \"%s\",\n" name;
+ pr " PyString_FromStringAndSize (%s->%s, %s->%s_len));\n"
+ typ name typ name
+ | name, FUUID ->
+ pr " PyDict_SetItemString (dict, \"%s\",\n" name;
+ pr " PyString_FromStringAndSize (%s->%s, 32));\n"
+ typ name
+ | name, (FBytes|FUInt64) ->
+ pr " PyDict_SetItemString (dict, \"%s\",\n" name;
+ pr " PyLong_FromUnsignedLongLong (%s->%s));\n"
+ typ name
+ | name, FInt64 ->
+ pr " PyDict_SetItemString (dict, \"%s\",\n" name;
+ pr " PyLong_FromLongLong (%s->%s));\n"
+ typ name
+ | name, FUInt32 ->
+ pr " PyDict_SetItemString (dict, \"%s\",\n" name;
+ pr " PyLong_FromUnsignedLong (%s->%s));\n"
+ typ name
+ | name, FInt32 ->
+ pr " PyDict_SetItemString (dict, \"%s\",\n" name;
+ pr " PyLong_FromLong (%s->%s));\n"
+ typ name
+ | name, FOptPercent ->
+ pr " if (%s->%s >= 0)\n" typ name;
+ pr " PyDict_SetItemString (dict, \"%s\",\n" name;
+ pr " PyFloat_FromDouble ((double) %s->%s));\n"
+ typ name;
+ pr " else {\n";
+ pr " Py_INCREF (Py_None);\n";
+ pr " PyDict_SetItemString (dict, \"%s\", Py_None);\n" name;
+ pr " }\n"
+ | name, FChar ->
+ pr " PyDict_SetItemString (dict, \"%s\",\n" name;
+ pr " PyString_FromStringAndSize (&dirent->%s, 1));\n" name
+ ) cols;
+ pr " return dict;\n";
+ pr "};\n";
+ pr "\n";
-=over 4
+ ) structs;
-=cut
+ (* Emit a put_TYPE_list function definition only if that function is used. *)
+ List.iter (
+ function
+ | typ, (RStructListOnly | RStructAndList) ->
+ (* generate the function for typ *)
+ emit_put_list_function typ
+ | typ, _ -> () (* empty *)
+ ) (rstructs_used_by all_functions);
-package Sys::Guestfs;
+ (* Python wrapper functions. *)
+ List.iter (
+ fun (name, style, _, _, _, _, _) ->
+ pr "static PyObject *\n";
+ pr "py_guestfs_%s (PyObject *self, PyObject *args)\n" name;
+ pr "{\n";
-use strict;
-use warnings;
+ pr " PyObject *py_g;\n";
+ pr " guestfs_h *g;\n";
+ pr " PyObject *py_r;\n";
-require XSLoader;
-XSLoader::load ('Sys::Guestfs');
+ let error_code =
+ match fst style with
+ | RErr | RInt _ | RBool _ -> pr " int r;\n"; "-1"
+ | RInt64 _ -> pr " int64_t r;\n"; "-1"
+ | RConstString _ | RConstOptString _ ->
+ pr " const char *r;\n"; "NULL"
+ | RString _ -> pr " char *r;\n"; "NULL"
+ | RStringList _ | RHashtable _ -> pr " char **r;\n"; "NULL"
+ | RStruct (_, typ) -> pr " struct guestfs_%s *r;\n" typ; "NULL"
+ | RStructList (_, typ) ->
+ pr " struct guestfs_%s_list *r;\n" typ; "NULL"
+ | RBufferOut _ ->
+ pr " char *r;\n";
+ pr " size_t size;\n";
+ "NULL" in
-=item $h = Sys::Guestfs->new ();
+ List.iter (
+ function
+ | Pathname n | Device n | Dev_or_Path n | String n | Key n
+ | FileIn n | FileOut n ->
+ pr " const char *%s;\n" n
+ | OptString n -> pr " const char *%s;\n" n
+ | BufferIn n ->
+ pr " const char *%s;\n" n;
+ pr " Py_ssize_t %s_size;\n" n
+ | StringList n | DeviceList n ->
+ pr " PyObject *py_%s;\n" n;
+ pr " char **%s;\n" n
+ | Bool n -> pr " int %s;\n" n
+ | Int n -> pr " int %s;\n" n
+ | Int64 n -> pr " long long %s;\n" n
+ ) (snd style);
-Create a new guestfs handle.
+ pr "\n";
-=cut
+ (* Convert the parameters. *)
+ pr " if (!PyArg_ParseTuple (args, (char *) \"O";
+ List.iter (
+ function
+ | Pathname _ | Device _ | Dev_or_Path _ | String _ | Key _
+ | FileIn _ | FileOut _ -> pr "s"
+ | OptString _ -> pr "z"
+ | StringList _ | DeviceList _ -> pr "O"
+ | Bool _ -> pr "i" (* XXX Python has booleans? *)
+ | Int _ -> pr "i"
+ | Int64 _ -> pr "L" (* XXX Whoever thought it was a good idea to
+ * emulate C's int/long/long long in Python?
+ *)
+ | BufferIn _ -> pr "s#"
+ ) (snd style);
+ pr ":guestfs_%s\",\n" name;
+ pr " &py_g";
+ List.iter (
+ function
+ | Pathname n | Device n | Dev_or_Path n | String n | Key n
+ | FileIn n | FileOut n -> pr ", &%s" n
+ | OptString n -> pr ", &%s" n
+ | StringList n | DeviceList n -> pr ", &py_%s" n
+ | Bool n -> pr ", &%s" n
+ | Int n -> pr ", &%s" n
+ | Int64 n -> pr ", &%s" n
+ | BufferIn n -> pr ", &%s, &%s_size" n n
+ ) (snd style);
-sub new {
- my $proto = shift;
- my $class = ref ($proto) || $proto;
+ pr "))\n";
+ pr " return NULL;\n";
- my $self = Sys::Guestfs::_create ();
- bless $self, $class;
- return $self;
-}
+ pr " g = get_handle (py_g);\n";
+ List.iter (
+ function
+ | Pathname _ | Device _ | Dev_or_Path _ | String _ | Key _
+ | FileIn _ | FileOut _ | OptString _ | Bool _ | Int _ | Int64 _
+ | BufferIn _ -> ()
+ | StringList n | DeviceList n ->
+ pr " %s = get_string_list (py_%s);\n" n n;
+ pr " if (!%s) return NULL;\n" n
+ ) (snd style);
-";
+ pr "\n";
- (* Actions. We only need to print documentation for these as
- * they are pulled in from the XS code automatically.
- *)
- List.iter (
- fun (name, style, _, flags, _, _, longdesc) ->
- if not (List.mem NotInDocs flags) then (
- let longdesc = replace_str longdesc "C<guestfs_" "C<$h-E<gt>" in
- pr "=item ";
- generate_perl_prototype name style;
- pr "\n\n";
- pr "%s\n\n" longdesc;
- if List.mem ProtocolLimitWarning flags then
- pr "%s\n\n" protocol_limit_warning;
- if List.mem DangerWillRobinson flags then
- pr "%s\n\n" danger_will_robinson;
- match deprecation_notice flags with
- | None -> ()
- | Some txt -> pr "%s\n\n" txt
- )
- ) all_functions_sorted;
+ pr " r = guestfs_%s " name;
+ generate_c_call_args ~handle:"g" style;
+ pr ";\n";
- (* End of file. *)
- pr "\
-=cut
+ List.iter (
+ function
+ | Pathname _ | Device _ | Dev_or_Path _ | String _ | Key _
+ | FileIn _ | FileOut _ | OptString _ | Bool _ | Int _ | Int64 _
+ | BufferIn _ -> ()
+ | StringList n | DeviceList n ->
+ pr " free (%s);\n" n
+ ) (snd style);
-1;
+ pr " if (r == %s) {\n" error_code;
+ pr " PyErr_SetString (PyExc_RuntimeError, guestfs_last_error (g));\n";
+ pr " return NULL;\n";
+ pr " }\n";
+ pr "\n";
-=back
+ (match fst style with
+ | RErr ->
+ pr " Py_INCREF (Py_None);\n";
+ pr " py_r = Py_None;\n"
+ | RInt _
+ | RBool _ -> pr " py_r = PyInt_FromLong ((long) r);\n"
+ | RInt64 _ -> pr " py_r = PyLong_FromLongLong (r);\n"
+ | RConstString _ -> pr " py_r = PyString_FromString (r);\n"
+ | RConstOptString _ ->
+ pr " if (r)\n";
+ pr " py_r = PyString_FromString (r);\n";
+ pr " else {\n";
+ pr " Py_INCREF (Py_None);\n";
+ pr " py_r = Py_None;\n";
+ pr " }\n"
+ | RString _ ->
+ pr " py_r = PyString_FromString (r);\n";
+ pr " free (r);\n"
+ | RStringList _ ->
+ pr " py_r = put_string_list (r);\n";
+ pr " free_strings (r);\n"
+ | RStruct (_, typ) ->
+ pr " py_r = put_%s (r);\n" typ;
+ pr " guestfs_free_%s (r);\n" typ
+ | RStructList (_, typ) ->
+ pr " py_r = put_%s_list (r);\n" typ;
+ pr " guestfs_free_%s_list (r);\n" typ
+ | RHashtable n ->
+ pr " py_r = put_table (r);\n";
+ pr " free_strings (r);\n"
+ | RBufferOut _ ->
+ pr " py_r = PyString_FromStringAndSize (r, size);\n";
+ pr " free (r);\n"
+ );
-=head1 COPYRIGHT
+ pr " return py_r;\n";
+ pr "}\n";
+ pr "\n"
+ ) all_functions;
+
+ (* Table of functions. *)
+ pr "static PyMethodDef methods[] = {\n";
+ pr " { (char *) \"create\", py_guestfs_create, METH_VARARGS, NULL },\n";
+ pr " { (char *) \"close\", py_guestfs_close, METH_VARARGS, NULL },\n";
+ List.iter (
+ fun (name, _, _, _, _, _, _) ->
+ pr " { (char *) \"%s\", py_guestfs_%s, METH_VARARGS, NULL },\n"
+ name name
+ ) all_functions;
+ pr " { NULL, NULL, 0, NULL }\n";
+ pr "};\n";
+ pr "\n";
-Copyright (C) 2009 Red Hat Inc.
+ (* Init function. *)
+ pr "\
+void
+initlibguestfsmod (void)
+{
+ static int initialized = 0;
-=head1 LICENSE
+ if (initialized) return;
+ Py_InitModule ((char *) \"libguestfsmod\", methods);
+ initialized = 1;
+}
+"
-Please see the file COPYING.LIB for the full license.
+(* Generate Python module. *)
+and generate_python_py () =
+ generate_header HashStyle LGPLv2plus;
-=head1 SEE ALSO
+ pr "\
+u\"\"\"Python bindings for libguestfs
-L<guestfs(3)>,
-L<guestfish(1)>,
-L<http://libguestfs.org>,
-L<Sys::Guestfs::Lib(3)>.
+import guestfs
+g = guestfs.GuestFS ()
+g.add_drive (\"guest.img\")
+g.launch ()
+parts = g.list_partitions ()
-=cut
-"
+The guestfs module provides a Python binding to the libguestfs API
+for examining and modifying virtual machine disk images.
-and generate_perl_prototype name style =
- (match fst style with
- | RErr -> ()
- | RBool n
- | RInt n
- | RInt64 n
- | RConstString n
- | RConstOptString n
- | RString n
- | RBufferOut n -> pr "$%s = " n
- | RStruct (n,_)
- | RHashtable n -> pr "%%%s = " n
- | RStringList n
- | RStructList (n,_) -> pr "@%s = " n
- );
- pr "$h->%s (" name;
- let comma = ref false in
- List.iter (
- fun arg ->
- if !comma then pr ", ";
- comma := true;
- match arg with
- | Pathname n | Device n | Dev_or_Path n | String n
- | OptString n | Bool n | Int n | Int64 n | FileIn n | FileOut n ->
- pr "$%s" n
- | StringList n | DeviceList n ->
- pr "\\@%s" n
- ) (snd style);
- pr ");"
+Amongst the things this is good for: making batch configuration
+changes to guests, getting disk used/free statistics (see also:
+virt-df), migrating between virtualization systems (see also:
+virt-p2v), performing partial backups, performing partial guest
+clones, cloning guests and changing registry/UUID/hostname info, and
+much else besides.
-(* Generate Python C module. *)
-and generate_python_c () =
- generate_header CStyle LGPLv2;
+Libguestfs uses Linux kernel and qemu code, and can access any type of
+guest filesystem that Linux and qemu can, including but not limited
+to: ext2/3/4, btrfs, FAT and NTFS, LVM, many different disk partition
+schemes, qcow, qcow2, vmdk.
- pr "\
-#include <Python.h>
+Libguestfs provides ways to enumerate guest storage (eg. partitions,
+LVs, what filesystem is in each LV, etc.). It can also run commands
+in the context of the guest. Also you can access filesystems over
+FUSE.
-#include <stdio.h>
-#include <stdlib.h>
-#include <assert.h>
+Errors which happen while using the API are turned into Python
+RuntimeError exceptions.
-#include \"guestfs.h\"
+To create a guestfs handle you usually have to perform the following
+sequence of calls:
-typedef struct {
- PyObject_HEAD
- guestfs_h *g;
-} Pyguestfs_Object;
+# Create the handle, call add_drive at least once, and possibly
+# several times if the guest has multiple block devices:
+g = guestfs.GuestFS ()
+g.add_drive (\"guest.img\")
-static guestfs_h *
-get_handle (PyObject *obj)
-{
- assert (obj);
- assert (obj != Py_None);
- return ((Pyguestfs_Object *) obj)->g;
-}
+# Launch the qemu subprocess and wait for it to become ready:
+g.launch ()
-static PyObject *
-put_handle (guestfs_h *g)
-{
- assert (g);
- return
- PyCObject_FromVoidPtrAndDesc ((void *) g, (char *) \"guestfs_h\", NULL);
-}
+# Now you can issue commands, for example:
+logvols = g.lvs ()
-/* This list should be freed (but not the strings) after use. */
-static char **
-get_string_list (PyObject *obj)
-{
- int i, len;
- char **r;
+\"\"\"
- assert (obj);
+import libguestfsmod
- if (!PyList_Check (obj)) {
- PyErr_SetString (PyExc_RuntimeError, \"expecting a list parameter\");
- return NULL;
- }
+class GuestFS:
+ \"\"\"Instances of this class are libguestfs API handles.\"\"\"
- len = PyList_Size (obj);
- r = malloc (sizeof (char *) * (len+1));
- if (r == NULL) {
- PyErr_SetString (PyExc_RuntimeError, \"get_string_list: out of memory\");
- return NULL;
- }
+ def __init__ (self):
+ \"\"\"Create a new libguestfs handle.\"\"\"
+ self._o = libguestfsmod.create ()
- for (i = 0; i < len; ++i)
- r[i] = PyString_AsString (PyList_GetItem (obj, i));
- r[len] = NULL;
+ def __del__ (self):
+ libguestfsmod.close (self._o)
- return r;
-}
+";
-static PyObject *
-put_string_list (char * const * const argv)
-{
- PyObject *list;
- int argc, i;
+ List.iter (
+ fun (name, style, _, flags, _, _, longdesc) ->
+ pr " def %s " name;
+ generate_py_call_args ~handle:"self" (snd style);
+ pr ":\n";
- for (argc = 0; argv[argc] != NULL; ++argc)
- ;
+ if not (List.mem NotInDocs flags) then (
+ let doc = replace_str longdesc "C<guestfs_" "C<g." in
+ let doc =
+ match fst style with
+ | RErr | RInt _ | RInt64 _ | RBool _
+ | RConstOptString _ | RConstString _
+ | RString _ | RBufferOut _ -> doc
+ | RStringList _ ->
+ doc ^ "\n\nThis function returns a list of strings."
+ | RStruct (_, typ) ->
+ doc ^ sprintf "\n\nThis function returns a dictionary, with keys matching the various fields in the guestfs_%s structure." typ
+ | RStructList (_, typ) ->
+ doc ^ sprintf "\n\nThis function returns a list of %ss. Each %s is represented as a dictionary." typ typ
+ | RHashtable _ ->
+ doc ^ "\n\nThis function returns a dictionary." in
+ let doc =
+ if List.mem ProtocolLimitWarning flags then
+ doc ^ "\n\n" ^ protocol_limit_warning
+ else doc in
+ let doc =
+ if List.mem DangerWillRobinson flags then
+ doc ^ "\n\n" ^ danger_will_robinson
+ else doc in
+ let doc =
+ match deprecation_notice flags with
+ | None -> doc
+ | Some txt -> doc ^ "\n\n" ^ txt in
+ let doc = pod2text ~width:60 name doc in
+ let doc = List.map (fun line -> replace_str line "\\" "\\\\") doc in
+ let doc = String.concat "\n " doc in
+ pr " u\"\"\"%s\"\"\"\n" doc;
+ );
+ pr " return libguestfsmod.%s " name;
+ generate_py_call_args ~handle:"self._o" (snd style);
+ pr "\n";
+ pr "\n";
+ ) all_functions
- list = PyList_New (argc);
- for (i = 0; i < argc; ++i)
- PyList_SetItem (list, i, PyString_FromString (argv[i]));
+(* Generate Python call arguments, eg "(handle, foo, bar)" *)
+and generate_py_call_args ~handle args =
+ pr "(%s" handle;
+ List.iter (fun arg -> pr ", %s" (name_of_argt arg)) args;
+ pr ")"
- return list;
-}
+(* Useful if you need the longdesc POD text as plain text. Returns a
+ * list of lines.
+ *
+ * Because this is very slow (the slowest part of autogeneration),
+ * we memoize the results.
+ *)
+and pod2text ~width name longdesc =
+ let key = width, name, longdesc in
+ try Hashtbl.find pod2text_memo key
+ with Not_found ->
+ let filename, chan = Filename.open_temp_file "gen" ".tmp" in
+ fprintf chan "=head1 %s\n\n%s\n" name longdesc;
+ close_out chan;
+ let cmd = sprintf "pod2text -w %d %s" width (Filename.quote filename) in
+ let chan = open_process_in cmd in
+ let lines = ref [] in
+ let rec loop i =
+ let line = input_line chan in
+ if i = 1 then (* discard the first line of output *)
+ loop (i+1)
+ else (
+ let line = triml line in
+ lines := line :: !lines;
+ loop (i+1)
+ ) in
+ let lines = try loop 1 with End_of_file -> List.rev !lines in
+ unlink filename;
+ (match close_process_in chan with
+ | WEXITED 0 -> ()
+ | WEXITED i ->
+ failwithf "pod2text: process exited with non-zero status (%d)" i
+ | WSIGNALED i | WSTOPPED i ->
+ failwithf "pod2text: process signalled or stopped by signal %d" i
+ );
+ Hashtbl.add pod2text_memo key lines;
+ pod2text_memo_updated ();
+ lines
-static PyObject *
-put_table (char * const * const argv)
-{
- PyObject *list, *item;
- int argc, i;
+(* Generate ruby bindings. *)
+and generate_ruby_c () =
+ generate_header CStyle LGPLv2plus;
- for (argc = 0; argv[argc] != NULL; ++argc)
- ;
+ pr "\
+#include <stdio.h>
+#include <stdlib.h>
- list = PyList_New (argc >> 1);
- for (i = 0; i < argc; i += 2) {
- item = PyTuple_New (2);
- PyTuple_SetItem (item, 0, PyString_FromString (argv[i]));
- PyTuple_SetItem (item, 1, PyString_FromString (argv[i+1]));
- PyList_SetItem (list, i >> 1, item);
- }
+#include <ruby.h>
- return list;
-}
+#include \"guestfs.h\"
-static void
-free_strings (char **argv)
-{
- int argc;
+#include \"extconf.h\"
- for (argc = 0; argv[argc] != NULL; ++argc)
- free (argv[argc]);
- free (argv);
+/* For Ruby < 1.9 */
+#ifndef RARRAY_LEN
+#define RARRAY_LEN(r) (RARRAY((r))->len)
+#endif
+
+static VALUE m_guestfs; /* guestfs module */
+static VALUE c_guestfs; /* guestfs_h handle */
+static VALUE e_Error; /* used for all errors */
+
+static void ruby_guestfs_free (void *p)
+{
+ if (!p) return;
+ guestfs_close ((guestfs_h *) p);
}
-static PyObject *
-py_guestfs_create (PyObject *self, PyObject *args)
+static VALUE ruby_guestfs_create (VALUE m)
{
guestfs_h *g;
g = guestfs_create ();
- if (g == NULL) {
- PyErr_SetString (PyExc_RuntimeError,
- \"guestfs.create: failed to allocate handle\");
- return NULL;
- }
+ if (!g)
+ rb_raise (e_Error, \"failed to create guestfs handle\");
+
+ /* Don't print error messages to stderr by default. */
guestfs_set_error_handler (g, NULL, NULL);
- return put_handle (g);
+
+ /* Wrap it, and make sure the close function is called when the
+ * handle goes away.
+ */
+ return Data_Wrap_Struct (c_guestfs, NULL, ruby_guestfs_free, g);
}
-static PyObject *
-py_guestfs_close (PyObject *self, PyObject *args)
+static VALUE ruby_guestfs_close (VALUE gv)
{
- PyObject *py_g;
guestfs_h *g;
+ Data_Get_Struct (gv, guestfs_h, g);
- if (!PyArg_ParseTuple (args, (char *) \"O:guestfs_close\", &py_g))
- return NULL;
- g = get_handle (py_g);
-
- guestfs_close (g);
+ ruby_guestfs_free (g);
+ DATA_PTR (gv) = NULL;
- Py_INCREF (Py_None);
- return Py_None;
+ return Qnil;
}
";
- let emit_put_list_function typ =
- pr "static PyObject *\n";
- pr "put_%s_list (struct guestfs_%s_list *%ss)\n" typ typ typ;
- pr "{\n";
- pr " PyObject *list;\n";
- pr " int i;\n";
- pr "\n";
- pr " list = PyList_New (%ss->len);\n" typ;
- pr " for (i = 0; i < %ss->len; ++i)\n" typ;
- pr " PyList_SetItem (list, i, put_%s (&%ss->val[i]));\n" typ typ;
- pr " return list;\n";
- pr "};\n";
- pr "\n"
- in
-
- (* Structures, turned into Python dictionaries. *)
List.iter (
- fun (typ, cols) ->
- pr "static PyObject *\n";
- pr "put_%s (struct guestfs_%s *%s)\n" typ typ typ;
+ fun (name, style, _, _, _, _, _) ->
+ pr "static VALUE ruby_guestfs_%s (VALUE gv" name;
+ List.iter (fun arg -> pr ", VALUE %sv" (name_of_argt arg)) (snd style);
+ pr ")\n";
pr "{\n";
- pr " PyObject *dict;\n";
+ pr " guestfs_h *g;\n";
+ pr " Data_Get_Struct (gv, guestfs_h, g);\n";
+ pr " if (!g)\n";
+ pr " rb_raise (rb_eArgError, \"%%s: used handle after closing it\", \"%s\");\n"
+ name;
pr "\n";
- pr " dict = PyDict_New ();\n";
+
List.iter (
function
- | name, FString ->
- pr " PyDict_SetItemString (dict, \"%s\",\n" name;
- pr " PyString_FromString (%s->%s));\n"
- typ name
- | name, FBuffer ->
- pr " PyDict_SetItemString (dict, \"%s\",\n" name;
- pr " PyString_FromStringAndSize (%s->%s, %s->%s_len));\n"
- typ name typ name
- | name, FUUID ->
- pr " PyDict_SetItemString (dict, \"%s\",\n" name;
- pr " PyString_FromStringAndSize (%s->%s, 32));\n"
- typ name
- | name, (FBytes|FUInt64) ->
- pr " PyDict_SetItemString (dict, \"%s\",\n" name;
- pr " PyLong_FromUnsignedLongLong (%s->%s));\n"
- typ name
- | name, FInt64 ->
- pr " PyDict_SetItemString (dict, \"%s\",\n" name;
- pr " PyLong_FromLongLong (%s->%s));\n"
- typ name
- | name, FUInt32 ->
- pr " PyDict_SetItemString (dict, \"%s\",\n" name;
- pr " PyLong_FromUnsignedLong (%s->%s));\n"
- typ name
- | name, FInt32 ->
- pr " PyDict_SetItemString (dict, \"%s\",\n" name;
- pr " PyLong_FromLong (%s->%s));\n"
- typ name
- | name, FOptPercent ->
- pr " if (%s->%s >= 0)\n" typ name;
- pr " PyDict_SetItemString (dict, \"%s\",\n" name;
- pr " PyFloat_FromDouble ((double) %s->%s));\n"
- typ name;
- pr " else {\n";
- pr " Py_INCREF (Py_None);\n";
- pr " PyDict_SetItemString (dict, \"%s\", Py_None);\n" name;
- pr " }\n"
- | name, FChar ->
- pr " PyDict_SetItemString (dict, \"%s\",\n" name;
- pr " PyString_FromStringAndSize (&dirent->%s, 1));\n" name
- ) cols;
- pr " return dict;\n";
- pr "};\n";
+ | Pathname n | Device n | Dev_or_Path n | String n | Key n
+ | FileIn n | FileOut n ->
+ pr " Check_Type (%sv, T_STRING);\n" n;
+ pr " const char *%s = StringValueCStr (%sv);\n" n n;
+ pr " if (!%s)\n" n;
+ pr " rb_raise (rb_eTypeError, \"expected string for parameter %%s of %%s\",\n";
+ pr " \"%s\", \"%s\");\n" n name
+ | BufferIn n ->
+ pr " Check_Type (%sv, T_STRING);\n" n;
+ pr " const char *%s = RSTRING (%sv)->ptr;\n" n n;
+ pr " if (!%s)\n" n;
+ pr " rb_raise (rb_eTypeError, \"expected string for parameter %%s of %%s\",\n";
+ pr " \"%s\", \"%s\");\n" n name;
+ pr " size_t %s_size = RSTRING (%sv)->len;\n" n n
+ | OptString n ->
+ pr " const char *%s = !NIL_P (%sv) ? StringValueCStr (%sv) : NULL;\n" n n n
+ | StringList n | DeviceList n ->
+ pr " char **%s;\n" n;
+ pr " Check_Type (%sv, T_ARRAY);\n" n;
+ pr " {\n";
+ pr " size_t i, len;\n";
+ pr " len = RARRAY_LEN (%sv);\n" n;
+ pr " %s = guestfs_safe_malloc (g, sizeof (char *) * (len+1));\n"
+ n;
+ pr " for (i = 0; i < len; ++i) {\n";
+ pr " VALUE v = rb_ary_entry (%sv, i);\n" n;
+ pr " %s[i] = StringValueCStr (v);\n" n;
+ pr " }\n";
+ pr " %s[len] = NULL;\n" n;
+ pr " }\n";
+ | Bool n ->
+ pr " int %s = RTEST (%sv);\n" n n
+ | Int n ->
+ pr " int %s = NUM2INT (%sv);\n" n n
+ | Int64 n ->
+ pr " long long %s = NUM2LL (%sv);\n" n n
+ ) (snd style);
pr "\n";
- ) structs;
-
- (* Emit a put_TYPE_list function definition only if that function is used. *)
- List.iter (
- function
- | typ, (RStructListOnly | RStructAndList) ->
- (* generate the function for typ *)
- emit_put_list_function typ
- | typ, _ -> () (* empty *)
- ) (rstructs_used_by all_functions);
-
- (* Python wrapper functions. *)
- List.iter (
- fun (name, style, _, _, _, _, _) ->
- pr "static PyObject *\n";
- pr "py_guestfs_%s (PyObject *self, PyObject *args)\n" name;
- pr "{\n";
-
- pr " PyObject *py_g;\n";
- pr " guestfs_h *g;\n";
- pr " PyObject *py_r;\n";
-
let error_code =
match fst style with
| RErr | RInt _ | RBool _ -> pr " int r;\n"; "-1"
pr " char *r;\n";
pr " size_t size;\n";
"NULL" in
-
- List.iter (
- function
- | Pathname n | Device n | Dev_or_Path n | String n | FileIn n | FileOut n ->
- pr " const char *%s;\n" n
- | OptString n -> pr " const char *%s;\n" n
- | StringList n | DeviceList n ->
- pr " PyObject *py_%s;\n" n;
- pr " char **%s;\n" n
- | Bool n -> pr " int %s;\n" n
- | Int n -> pr " int %s;\n" n
- | Int64 n -> pr " long long %s;\n" n
- ) (snd style);
-
- pr "\n";
-
- (* Convert the parameters. *)
- pr " if (!PyArg_ParseTuple (args, (char *) \"O";
- List.iter (
- function
- | Pathname _ | Device _ | Dev_or_Path _ | String _ | FileIn _ | FileOut _ -> pr "s"
- | OptString _ -> pr "z"
- | StringList _ | DeviceList _ -> pr "O"
- | Bool _ -> pr "i" (* XXX Python has booleans? *)
- | Int _ -> pr "i"
- | Int64 _ -> pr "L" (* XXX Whoever thought it was a good idea to
- * emulate C's int/long/long long in Python?
- *)
- ) (snd style);
- pr ":guestfs_%s\",\n" name;
- pr " &py_g";
- List.iter (
- function
- | Pathname n | Device n | Dev_or_Path n | String n | FileIn n | FileOut n -> pr ", &%s" n
- | OptString n -> pr ", &%s" n
- | StringList n | DeviceList n -> pr ", &py_%s" n
- | Bool n -> pr ", &%s" n
- | Int n -> pr ", &%s" n
- | Int64 n -> pr ", &%s" n
- ) (snd style);
-
- pr "))\n";
- pr " return NULL;\n";
-
- pr " g = get_handle (py_g);\n";
- List.iter (
- function
- | Pathname _ | Device _ | Dev_or_Path _ | String _
- | FileIn _ | FileOut _ | OptString _ | Bool _ | Int _ | Int64 _ -> ()
- | StringList n | DeviceList n ->
- pr " %s = get_string_list (py_%s);\n" n n;
- pr " if (!%s) return NULL;\n" n
- ) (snd style);
-
pr "\n";
pr " r = guestfs_%s " name;
List.iter (
function
- | Pathname _ | Device _ | Dev_or_Path _ | String _
- | FileIn _ | FileOut _ | OptString _ | Bool _ | Int _ | Int64 _ -> ()
+ | Pathname _ | Device _ | Dev_or_Path _ | String _ | Key _
+ | FileIn _ | FileOut _ | OptString _ | Bool _ | Int _ | Int64 _
+ | BufferIn _ -> ()
| StringList n | DeviceList n ->
pr " free (%s);\n" n
) (snd style);
- pr " if (r == %s) {\n" error_code;
- pr " PyErr_SetString (PyExc_RuntimeError, guestfs_last_error (g));\n";
- pr " return NULL;\n";
- pr " }\n";
+ pr " if (r == %s)\n" error_code;
+ pr " rb_raise (e_Error, \"%%s\", guestfs_last_error (g));\n";
pr "\n";
(match fst style with
| RErr ->
- pr " Py_INCREF (Py_None);\n";
- pr " py_r = Py_None;\n"
- | RInt _
- | RBool _ -> pr " py_r = PyInt_FromLong ((long) r);\n"
- | RInt64 _ -> pr " py_r = PyLong_FromLongLong (r);\n"
- | RConstString _ -> pr " py_r = PyString_FromString (r);\n"
- | RConstOptString _ ->
- pr " if (r)\n";
- pr " py_r = PyString_FromString (r);\n";
- pr " else {\n";
- pr " Py_INCREF (Py_None);\n";
- pr " py_r = Py_None;\n";
- pr " }\n"
+ pr " return Qnil;\n"
+ | RInt _ | RBool _ ->
+ pr " return INT2NUM (r);\n"
+ | RInt64 _ ->
+ pr " return ULL2NUM (r);\n"
+ | RConstString _ ->
+ pr " return rb_str_new2 (r);\n";
+ | RConstOptString _ ->
+ pr " if (r)\n";
+ pr " return rb_str_new2 (r);\n";
+ pr " else\n";
+ pr " return Qnil;\n";
| RString _ ->
- pr " py_r = PyString_FromString (r);\n";
- pr " free (r);\n"
+ pr " VALUE rv = rb_str_new2 (r);\n";
+ pr " free (r);\n";
+ pr " return rv;\n";
| RStringList _ ->
- pr " py_r = put_string_list (r);\n";
- pr " free_strings (r);\n"
+ pr " size_t i, len = 0;\n";
+ pr " for (i = 0; r[i] != NULL; ++i) len++;\n";
+ pr " VALUE rv = rb_ary_new2 (len);\n";
+ pr " for (i = 0; r[i] != NULL; ++i) {\n";
+ pr " rb_ary_push (rv, rb_str_new2 (r[i]));\n";
+ pr " free (r[i]);\n";
+ pr " }\n";
+ pr " free (r);\n";
+ pr " return rv;\n"
| RStruct (_, typ) ->
- pr " py_r = put_%s (r);\n" typ;
- pr " guestfs_free_%s (r);\n" typ
+ let cols = cols_of_struct typ in
+ generate_ruby_struct_code typ cols
| RStructList (_, typ) ->
- pr " py_r = put_%s_list (r);\n" typ;
- pr " guestfs_free_%s_list (r);\n" typ
- | RHashtable n ->
- pr " py_r = put_table (r);\n";
- pr " free_strings (r);\n"
+ let cols = cols_of_struct typ in
+ generate_ruby_struct_list_code typ cols
+ | RHashtable _ ->
+ pr " VALUE rv = rb_hash_new ();\n";
+ pr " size_t i;\n";
+ pr " for (i = 0; r[i] != NULL; i+=2) {\n";
+ pr " rb_hash_aset (rv, rb_str_new2 (r[i]), rb_str_new2 (r[i+1]));\n";
+ pr " free (r[i]);\n";
+ pr " free (r[i+1]);\n";
+ pr " }\n";
+ pr " free (r);\n";
+ pr " return rv;\n"
| RBufferOut _ ->
- pr " py_r = PyString_FromStringAndSize (r, size);\n";
- pr " free (r);\n"
+ pr " VALUE rv = rb_str_new (r, size);\n";
+ pr " free (r);\n";
+ pr " return rv;\n";
);
- pr " return py_r;\n";
pr "}\n";
pr "\n"
) all_functions;
- (* Table of functions. *)
- pr "static PyMethodDef methods[] = {\n";
- pr " { (char *) \"create\", py_guestfs_create, METH_VARARGS, NULL },\n";
- pr " { (char *) \"close\", py_guestfs_close, METH_VARARGS, NULL },\n";
- List.iter (
- fun (name, _, _, _, _, _, _) ->
- pr " { (char *) \"%s\", py_guestfs_%s, METH_VARARGS, NULL },\n"
- name name
- ) all_functions;
- pr " { NULL, NULL, 0, NULL }\n";
- pr "};\n";
- pr "\n";
-
- (* Init function. *)
pr "\
-void
-initlibguestfsmod (void)
+/* Initialize the module. */
+void Init__guestfs ()
{
- static int initialized = 0;
-
- if (initialized) return;
- Py_InitModule ((char *) \"libguestfsmod\", methods);
- initialized = 1;
-}
-"
-
-(* Generate Python module. *)
-and generate_python_py () =
- generate_header HashStyle LGPLv2;
-
- pr "\
-u\"\"\"Python bindings for libguestfs
-
-import guestfs
-g = guestfs.GuestFS ()
-g.add_drive (\"guest.img\")
-g.launch ()
-parts = g.list_partitions ()
-
-The guestfs module provides a Python binding to the libguestfs API
-for examining and modifying virtual machine disk images.
-
-Amongst the things this is good for: making batch configuration
-changes to guests, getting disk used/free statistics (see also:
-virt-df), migrating between virtualization systems (see also:
-virt-p2v), performing partial backups, performing partial guest
-clones, cloning guests and changing registry/UUID/hostname info, and
-much else besides.
+ m_guestfs = rb_define_module (\"Guestfs\");
+ c_guestfs = rb_define_class_under (m_guestfs, \"Guestfs\", rb_cObject);
+ e_Error = rb_define_class_under (m_guestfs, \"Error\", rb_eStandardError);
-Libguestfs uses Linux kernel and qemu code, and can access any type of
-guest filesystem that Linux and qemu can, including but not limited
-to: ext2/3/4, btrfs, FAT and NTFS, LVM, many different disk partition
-schemes, qcow, qcow2, vmdk.
+#ifdef HAVE_RB_DEFINE_ALLOC_FUNC
+ rb_define_alloc_func (c_guestfs, ruby_guestfs_create);
+#endif
-Libguestfs provides ways to enumerate guest storage (eg. partitions,
-LVs, what filesystem is in each LV, etc.). It can also run commands
-in the context of the guest. Also you can access filesystems over FTP.
+ rb_define_module_function (m_guestfs, \"create\", ruby_guestfs_create, 0);
+ rb_define_method (c_guestfs, \"close\", ruby_guestfs_close, 0);
-Errors which happen while using the API are turned into Python
-RuntimeError exceptions.
+";
+ (* Define the rest of the methods. *)
+ List.iter (
+ fun (name, style, _, _, _, _, _) ->
+ pr " rb_define_method (c_guestfs, \"%s\",\n" name;
+ pr " ruby_guestfs_%s, %d);\n" name (List.length (snd style))
+ ) all_functions;
-To create a guestfs handle you usually have to perform the following
-sequence of calls:
+ pr "}\n"
-# Create the handle, call add_drive at least once, and possibly
-# several times if the guest has multiple block devices:
-g = guestfs.GuestFS ()
-g.add_drive (\"guest.img\")
+(* Ruby code to return a struct. *)
+and generate_ruby_struct_code typ cols =
+ pr " VALUE rv = rb_hash_new ();\n";
+ List.iter (
+ function
+ | name, FString ->
+ pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_str_new2 (r->%s));\n" name name
+ | name, FBuffer ->
+ pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_str_new (r->%s, r->%s_len));\n" name name name
+ | name, FUUID ->
+ pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_str_new (r->%s, 32));\n" name name
+ | name, (FBytes|FUInt64) ->
+ pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), ULL2NUM (r->%s));\n" name name
+ | name, FInt64 ->
+ pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), LL2NUM (r->%s));\n" name name
+ | name, FUInt32 ->
+ pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), UINT2NUM (r->%s));\n" name name
+ | name, FInt32 ->
+ pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), INT2NUM (r->%s));\n" name name
+ | name, FOptPercent ->
+ pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_dbl2big (r->%s));\n" name name
+ | name, FChar -> (* XXX wrong? *)
+ pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), ULL2NUM (r->%s));\n" name name
+ ) cols;
+ pr " guestfs_free_%s (r);\n" typ;
+ pr " return rv;\n"
-# Launch the qemu subprocess and wait for it to become ready:
-g.launch ()
+(* Ruby code to return a struct list. *)
+and generate_ruby_struct_list_code typ cols =
+ pr " VALUE rv = rb_ary_new2 (r->len);\n";
+ pr " size_t i;\n";
+ pr " for (i = 0; i < r->len; ++i) {\n";
+ pr " VALUE hv = rb_hash_new ();\n";
+ List.iter (
+ function
+ | name, FString ->
+ pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_str_new2 (r->val[i].%s));\n" name name
+ | name, FBuffer ->
+ pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_str_new (r->val[i].%s, r->val[i].%s_len));\n" name name name
+ | name, FUUID ->
+ pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_str_new (r->val[i].%s, 32));\n" name name
+ | name, (FBytes|FUInt64) ->
+ pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), ULL2NUM (r->val[i].%s));\n" name name
+ | name, FInt64 ->
+ pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), LL2NUM (r->val[i].%s));\n" name name
+ | name, FUInt32 ->
+ pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), UINT2NUM (r->val[i].%s));\n" name name
+ | name, FInt32 ->
+ pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), INT2NUM (r->val[i].%s));\n" name name
+ | name, FOptPercent ->
+ pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_dbl2big (r->val[i].%s));\n" name name
+ | name, FChar -> (* XXX wrong? *)
+ pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), ULL2NUM (r->val[i].%s));\n" name name
+ ) cols;
+ pr " rb_ary_push (rv, hv);\n";
+ pr " }\n";
+ pr " guestfs_free_%s_list (r);\n" typ;
+ pr " return rv;\n"
-# Now you can issue commands, for example:
-logvols = g.lvs ()
+(* Generate Java bindings GuestFS.java file. *)
+and generate_java_java () =
+ generate_header CStyle LGPLv2plus;
-\"\"\"
+ pr "\
+package com.redhat.et.libguestfs;
-import libguestfsmod
+import java.util.HashMap;
+import com.redhat.et.libguestfs.LibGuestFSException;
+import com.redhat.et.libguestfs.PV;
+import com.redhat.et.libguestfs.VG;
+import com.redhat.et.libguestfs.LV;
+import com.redhat.et.libguestfs.Stat;
+import com.redhat.et.libguestfs.StatVFS;
+import com.redhat.et.libguestfs.IntBool;
+import com.redhat.et.libguestfs.Dirent;
-class GuestFS:
- \"\"\"Instances of this class are libguestfs API handles.\"\"\"
+/**
+ * The GuestFS object is a libguestfs handle.
+ *
+ * @author rjones
+ */
+public class GuestFS {
+ // Load the native code.
+ static {
+ System.loadLibrary (\"guestfs_jni\");
+ }
- def __init__ (self):
- \"\"\"Create a new libguestfs handle.\"\"\"
- self._o = libguestfsmod.create ()
+ /**
+ * The native guestfs_h pointer.
+ */
+ long g;
- def __del__ (self):
- libguestfsmod.close (self._o)
+ /**
+ * Create a libguestfs handle.
+ *
+ * @throws LibGuestFSException
+ */
+ public GuestFS () throws LibGuestFSException
+ {
+ g = _create ();
+ }
+ private native long _create () throws LibGuestFSException;
-";
+ /**
+ * Close a libguestfs handle.
+ *
+ * You can also leave handles to be collected by the garbage
+ * collector, but this method ensures that the resources used
+ * by the handle are freed up immediately. If you call any
+ * other methods after closing the handle, you will get an
+ * exception.
+ *
+ * @throws LibGuestFSException
+ */
+ public void close () throws LibGuestFSException
+ {
+ if (g != 0)
+ _close (g);
+ g = 0;
+ }
+ private native void _close (long g) throws LibGuestFSException;
- List.iter (
- fun (name, style, _, flags, _, _, longdesc) ->
- pr " def %s " name;
- generate_py_call_args ~handle:"self" (snd style);
- pr ":\n";
+ public void finalize () throws LibGuestFSException
+ {
+ close ();
+ }
- if not (List.mem NotInDocs flags) then (
+";
+
+ List.iter (
+ fun (name, style, _, flags, _, shortdesc, longdesc) ->
+ if not (List.mem NotInDocs flags); then (
let doc = replace_str longdesc "C<guestfs_" "C<g." in
let doc =
- match fst style with
- | RErr | RInt _ | RInt64 _ | RBool _
- | RConstOptString _ | RConstString _
- | RString _ | RBufferOut _ -> doc
- | RStringList _ ->
- doc ^ "\n\nThis function returns a list of strings."
- | RStruct (_, typ) ->
- doc ^ sprintf "\n\nThis function returns a dictionary, with keys matching the various fields in the guestfs_%s structure." typ
- | RStructList (_, typ) ->
- doc ^ sprintf "\n\nThis function returns a list of %ss. Each %s is represented as a dictionary." typ typ
- | RHashtable _ ->
- doc ^ "\n\nThis function returns a dictionary." in
- let doc =
if List.mem ProtocolLimitWarning flags then
doc ^ "\n\n" ^ protocol_limit_warning
else doc in
| None -> doc
| Some txt -> doc ^ "\n\n" ^ txt in
let doc = pod2text ~width:60 name doc in
- let doc = List.map (fun line -> replace_str line "\\" "\\\\") doc in
- let doc = String.concat "\n " doc in
- pr " u\"\"\"%s\"\"\"\n" doc;
+ let doc = List.map ( (* RHBZ#501883 *)
+ function
+ | "" -> "<p>"
+ | nonempty -> nonempty
+ ) doc in
+ let doc = String.concat "\n * " doc in
+
+ pr " /**\n";
+ pr " * %s\n" shortdesc;
+ pr " * <p>\n";
+ pr " * %s\n" doc;
+ pr " * @throws LibGuestFSException\n";
+ pr " */\n";
+ pr " ";
);
- pr " return libguestfsmod.%s " name;
- generate_py_call_args ~handle:"self._o" (snd style);
+ generate_java_prototype ~public:true ~semicolon:false name style;
+ pr "\n";
+ pr " {\n";
+ pr " if (g == 0)\n";
+ pr " throw new LibGuestFSException (\"%s: handle is closed\");\n"
+ name;
+ pr " ";
+ if fst style <> RErr then pr "return ";
+ pr "_%s " name;
+ generate_java_call_args ~handle:"g" (snd style);
+ pr ";\n";
+ pr " }\n";
+ pr " ";
+ generate_java_prototype ~privat:true ~native:true name style;
pr "\n";
pr "\n";
- ) all_functions
+ ) all_functions;
-(* Generate Python call arguments, eg "(handle, foo, bar)" *)
-and generate_py_call_args ~handle args =
+ pr "}\n"
+
+(* Generate Java call arguments, eg "(handle, foo, bar)" *)
+and generate_java_call_args ~handle args =
pr "(%s" handle;
List.iter (fun arg -> pr ", %s" (name_of_argt arg)) args;
pr ")"
-(* Useful if you need the longdesc POD text as plain text. Returns a
- * list of lines.
- *
- * Because this is very slow (the slowest part of autogeneration),
- * we memoize the results.
- *)
-and pod2text ~width name longdesc =
- let key = width, name, longdesc in
- try Hashtbl.find pod2text_memo key
- with Not_found ->
- let filename, chan = Filename.open_temp_file "gen" ".tmp" in
- fprintf chan "=head1 %s\n\n%s\n" name longdesc;
- close_out chan;
- let cmd = sprintf "pod2text -w %d %s" width (Filename.quote filename) in
- let chan = open_process_in cmd in
- let lines = ref [] in
- let rec loop i =
- let line = input_line chan in
- if i = 1 then (* discard the first line of output *)
- loop (i+1)
- else (
- let line = triml line in
- lines := line :: !lines;
- loop (i+1)
- ) in
- let lines = try loop 1 with End_of_file -> List.rev !lines in
- unlink filename;
- (match close_process_in chan with
- | WEXITED 0 -> ()
- | WEXITED i ->
- failwithf "pod2text: process exited with non-zero status (%d)" i
- | WSIGNALED i | WSTOPPED i ->
- failwithf "pod2text: process signalled or stopped by signal %d" i
- );
- Hashtbl.add pod2text_memo key lines;
- pod2text_memo_updated ();
- lines
+and generate_java_prototype ?(public=false) ?(privat=false) ?(native=false)
+ ?(semicolon=true) name style =
+ if privat then pr "private ";
+ if public then pr "public ";
+ if native then pr "native ";
-(* Generate ruby bindings. *)
-and generate_ruby_c () =
- generate_header CStyle LGPLv2;
+ (* return type *)
+ (match fst style with
+ | RErr -> pr "void ";
+ | RInt _ -> pr "int ";
+ | RInt64 _ -> pr "long ";
+ | RBool _ -> pr "boolean ";
+ | RConstString _ | RConstOptString _ | RString _
+ | RBufferOut _ -> pr "String ";
+ | RStringList _ -> pr "String[] ";
+ | RStruct (_, typ) ->
+ let name = java_name_of_struct typ in
+ pr "%s " name;
+ | RStructList (_, typ) ->
+ let name = java_name_of_struct typ in
+ pr "%s[] " name;
+ | RHashtable _ -> pr "HashMap<String,String> ";
+ );
+
+ if native then pr "_%s " name else pr "%s " name;
+ pr "(";
+ let needs_comma = ref false in
+ if native then (
+ pr "long g";
+ needs_comma := true
+ );
+
+ (* args *)
+ List.iter (
+ fun arg ->
+ if !needs_comma then pr ", ";
+ needs_comma := true;
+
+ match arg with
+ | Pathname n
+ | Device n | Dev_or_Path n
+ | String n
+ | OptString n
+ | FileIn n
+ | FileOut n
+ | Key n ->
+ pr "String %s" n
+ | BufferIn n ->
+ pr "byte[] %s" n
+ | StringList n | DeviceList n ->
+ pr "String[] %s" n
+ | Bool n ->
+ pr "boolean %s" n
+ | Int n ->
+ pr "int %s" n
+ | Int64 n ->
+ pr "long %s" n
+ ) (snd style);
+
+ pr ")\n";
+ pr " throws LibGuestFSException";
+ if semicolon then pr ";"
+
+and generate_java_struct jtyp cols () =
+ generate_header CStyle LGPLv2plus;
pr "\
-#include <stdio.h>
-#include <stdlib.h>
+package com.redhat.et.libguestfs;
-#include <ruby.h>
+/**
+ * Libguestfs %s structure.
+ *
+ * @author rjones
+ * @see GuestFS
+ */
+public class %s {
+" jtyp jtyp;
-#include \"guestfs.h\"
+ List.iter (
+ function
+ | name, FString
+ | name, FUUID
+ | name, FBuffer -> pr " public String %s;\n" name
+ | name, (FBytes|FUInt64|FInt64) -> pr " public long %s;\n" name
+ | name, (FUInt32|FInt32) -> pr " public int %s;\n" name
+ | name, FChar -> pr " public char %s;\n" name
+ | name, FOptPercent ->
+ pr " /* The next field is [0..100] or -1 meaning 'not present': */\n";
+ pr " public float %s;\n" name
+ ) cols;
-#include \"extconf.h\"
+ pr "}\n"
-/* For Ruby < 1.9 */
-#ifndef RARRAY_LEN
-#define RARRAY_LEN(r) (RARRAY((r))->len)
-#endif
+and generate_java_c () =
+ generate_header CStyle LGPLv2plus;
-static VALUE m_guestfs; /* guestfs module */
-static VALUE c_guestfs; /* guestfs_h handle */
-static VALUE e_Error; /* used for all errors */
+ pr "\
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
-static void ruby_guestfs_free (void *p)
+#include \"com_redhat_et_libguestfs_GuestFS.h\"
+#include \"guestfs.h\"
+
+/* Note that this function returns. The exception is not thrown
+ * until after the wrapper function returns.
+ */
+static void
+throw_exception (JNIEnv *env, const char *msg)
{
- if (!p) return;
- guestfs_close ((guestfs_h *) p);
+ jclass cl;
+ cl = (*env)->FindClass (env,
+ \"com/redhat/et/libguestfs/LibGuestFSException\");
+ (*env)->ThrowNew (env, cl, msg);
}
-static VALUE ruby_guestfs_create (VALUE m)
+JNIEXPORT jlong JNICALL
+Java_com_redhat_et_libguestfs_GuestFS__1create
+ (JNIEnv *env, jobject obj)
{
guestfs_h *g;
g = guestfs_create ();
- if (!g)
- rb_raise (e_Error, \"failed to create guestfs handle\");
-
- /* Don't print error messages to stderr by default. */
+ if (g == NULL) {
+ throw_exception (env, \"GuestFS.create: failed to allocate handle\");
+ return 0;
+ }
guestfs_set_error_handler (g, NULL, NULL);
-
- /* Wrap it, and make sure the close function is called when the
- * handle goes away.
- */
- return Data_Wrap_Struct (c_guestfs, NULL, ruby_guestfs_free, g);
+ return (jlong) (long) g;
}
-static VALUE ruby_guestfs_close (VALUE gv)
+JNIEXPORT void JNICALL
+Java_com_redhat_et_libguestfs_GuestFS__1close
+ (JNIEnv *env, jobject obj, jlong jg)
{
- guestfs_h *g;
- Data_Get_Struct (gv, guestfs_h, g);
-
- ruby_guestfs_free (g);
- DATA_PTR (gv) = NULL;
-
- return Qnil;
+ guestfs_h *g = (guestfs_h *) (long) jg;
+ guestfs_close (g);
}
";
List.iter (
fun (name, style, _, _, _, _, _) ->
- pr "static VALUE ruby_guestfs_%s (VALUE gv" name;
- List.iter (fun arg -> pr ", VALUE %sv" (name_of_argt arg)) (snd style);
- pr ")\n";
- pr "{\n";
- pr " guestfs_h *g;\n";
- pr " Data_Get_Struct (gv, guestfs_h, g);\n";
- pr " if (!g)\n";
- pr " rb_raise (rb_eArgError, \"%%s: used handle after closing it\", \"%s\");\n"
- name;
+ pr "JNIEXPORT ";
+ (match fst style with
+ | RErr -> pr "void ";
+ | RInt _ -> pr "jint ";
+ | RInt64 _ -> pr "jlong ";
+ | RBool _ -> pr "jboolean ";
+ | RConstString _ | RConstOptString _ | RString _
+ | RBufferOut _ -> pr "jstring ";
+ | RStruct _ | RHashtable _ ->
+ pr "jobject ";
+ | RStringList _ | RStructList _ ->
+ pr "jobjectArray ";
+ );
+ pr "JNICALL\n";
+ pr "Java_com_redhat_et_libguestfs_GuestFS_";
+ pr "%s" (replace_str ("_" ^ name) "_" "_1");
pr "\n";
-
+ pr " (JNIEnv *env, jobject obj, jlong jg";
List.iter (
function
- | Pathname n | Device n | Dev_or_Path n | String n | FileIn n | FileOut n ->
- pr " Check_Type (%sv, T_STRING);\n" n;
- pr " const char *%s = StringValueCStr (%sv);\n" n n;
- pr " if (!%s)\n" n;
- pr " rb_raise (rb_eTypeError, \"expected string for parameter %%s of %%s\",\n";
- pr " \"%s\", \"%s\");\n" n name
- | OptString n ->
- pr " const char *%s = !NIL_P (%sv) ? StringValueCStr (%sv) : NULL;\n" n n n
+ | Pathname n
+ | Device n | Dev_or_Path n
+ | String n
+ | OptString n
+ | FileIn n
+ | FileOut n
+ | Key n ->
+ pr ", jstring j%s" n
+ | BufferIn n ->
+ pr ", jbyteArray j%s" n
| StringList n | DeviceList n ->
- pr " char **%s;\n" n;
- pr " Check_Type (%sv, T_ARRAY);\n" n;
- pr " {\n";
- pr " int i, len;\n";
- pr " len = RARRAY_LEN (%sv);\n" n;
- pr " %s = guestfs_safe_malloc (g, sizeof (char *) * (len+1));\n"
- n;
- pr " for (i = 0; i < len; ++i) {\n";
- pr " VALUE v = rb_ary_entry (%sv, i);\n" n;
- pr " %s[i] = StringValueCStr (v);\n" n;
- pr " }\n";
- pr " %s[len] = NULL;\n" n;
- pr " }\n";
+ pr ", jobjectArray j%s" n
| Bool n ->
- pr " int %s = RTEST (%sv);\n" n n
+ pr ", jboolean j%s" n
| Int n ->
- pr " int %s = NUM2INT (%sv);\n" n n
+ pr ", jint j%s" n
| Int64 n ->
- pr " long long %s = NUM2LL (%sv);\n" n n
+ pr ", jlong j%s" n
) (snd style);
- pr "\n";
-
- let error_code =
+ pr ")\n";
+ pr "{\n";
+ pr " guestfs_h *g = (guestfs_h *) (long) jg;\n";
+ let error_code, no_ret =
match fst style with
- | RErr | RInt _ | RBool _ -> pr " int r;\n"; "-1"
- | RInt64 _ -> pr " int64_t r;\n"; "-1"
- | RConstString _ | RConstOptString _ ->
- pr " const char *r;\n"; "NULL"
- | RString _ -> pr " char *r;\n"; "NULL"
- | RStringList _ | RHashtable _ -> pr " char **r;\n"; "NULL"
- | RStruct (_, typ) -> pr " struct guestfs_%s *r;\n" typ; "NULL"
+ | RErr -> pr " int r;\n"; "-1", ""
+ | RBool _
+ | RInt _ -> pr " int r;\n"; "-1", "0"
+ | RInt64 _ -> pr " int64_t r;\n"; "-1", "0"
+ | RConstString _ -> pr " const char *r;\n"; "NULL", "NULL"
+ | RConstOptString _ -> pr " const char *r;\n"; "NULL", "NULL"
+ | RString _ ->
+ pr " jstring jr;\n";
+ pr " char *r;\n"; "NULL", "NULL"
+ | RStringList _ ->
+ pr " jobjectArray jr;\n";
+ pr " int r_len;\n";
+ pr " jclass cl;\n";
+ pr " jstring jstr;\n";
+ pr " char **r;\n"; "NULL", "NULL"
+ | RStruct (_, typ) ->
+ pr " jobject jr;\n";
+ pr " jclass cl;\n";
+ pr " jfieldID fl;\n";
+ pr " struct guestfs_%s *r;\n" typ; "NULL", "NULL"
| RStructList (_, typ) ->
- pr " struct guestfs_%s_list *r;\n" typ; "NULL"
+ pr " jobjectArray jr;\n";
+ pr " jclass cl;\n";
+ pr " jfieldID fl;\n";
+ pr " jobject jfl;\n";
+ pr " struct guestfs_%s_list *r;\n" typ; "NULL", "NULL"
+ | RHashtable _ -> pr " char **r;\n"; "NULL", "NULL"
| RBufferOut _ ->
+ pr " jstring jr;\n";
pr " char *r;\n";
pr " size_t size;\n";
- "NULL" in
+ "NULL", "NULL" in
+ List.iter (
+ function
+ | Pathname n
+ | Device n | Dev_or_Path n
+ | String n
+ | OptString n
+ | FileIn n
+ | FileOut n
+ | Key n ->
+ pr " const char *%s;\n" n
+ | BufferIn n ->
+ pr " jbyte *%s;\n" n;
+ pr " size_t %s_size;\n" n
+ | StringList n | DeviceList n ->
+ pr " int %s_len;\n" n;
+ pr " const char **%s;\n" n
+ | Bool n
+ | Int n ->
+ pr " int %s;\n" n
+ | Int64 n ->
+ pr " int64_t %s;\n" n
+ ) (snd style);
+
+ let needs_i =
+ (match fst style with
+ | RStringList _ | RStructList _ -> true
+ | RErr | RBool _ | RInt _ | RInt64 _ | RConstString _
+ | RConstOptString _
+ | RString _ | RBufferOut _ | RStruct _ | RHashtable _ -> false) ||
+ List.exists (function
+ | StringList _ -> true
+ | DeviceList _ -> true
+ | _ -> false) (snd style) in
+ if needs_i then
+ pr " size_t i;\n";
+
pr "\n";
+ (* Get the parameters. *)
+ List.iter (
+ function
+ | Pathname n
+ | Device n | Dev_or_Path n
+ | String n
+ | FileIn n
+ | FileOut n
+ | Key n ->
+ pr " %s = (*env)->GetStringUTFChars (env, j%s, NULL);\n" n n
+ | OptString n ->
+ (* This is completely undocumented, but Java null becomes
+ * a NULL parameter.
+ *)
+ pr " %s = j%s ? (*env)->GetStringUTFChars (env, j%s, NULL) : NULL;\n" n n n
+ | BufferIn n ->
+ pr " %s = (*env)->GetByteArrayElements (env, j%s, NULL);\n" n n;
+ pr " %s_size = (*env)->GetArrayLength (env, j%s);\n" n n
+ | StringList n | DeviceList n ->
+ pr " %s_len = (*env)->GetArrayLength (env, j%s);\n" n n;
+ pr " %s = guestfs_safe_malloc (g, sizeof (char *) * (%s_len+1));\n" n n;
+ pr " for (i = 0; i < %s_len; ++i) {\n" n;
+ pr " jobject o = (*env)->GetObjectArrayElement (env, j%s, i);\n"
+ n;
+ pr " %s[i] = (*env)->GetStringUTFChars (env, o, NULL);\n" n;
+ pr " }\n";
+ pr " %s[%s_len] = NULL;\n" n n;
+ | Bool n
+ | Int n
+ | Int64 n ->
+ pr " %s = j%s;\n" n n
+ ) (snd style);
+
+ (* Make the call. *)
pr " r = guestfs_%s " name;
generate_c_call_args ~handle:"g" style;
pr ";\n";
+ (* Release the parameters. *)
List.iter (
function
- | Pathname _ | Device _ | Dev_or_Path _ | String _
- | FileIn _ | FileOut _ | OptString _ | Bool _ | Int _ | Int64 _ -> ()
+ | Pathname n
+ | Device n | Dev_or_Path n
+ | String n
+ | FileIn n
+ | FileOut n
+ | Key n ->
+ pr " (*env)->ReleaseStringUTFChars (env, j%s, %s);\n" n n
+ | OptString n ->
+ pr " if (j%s)\n" n;
+ pr " (*env)->ReleaseStringUTFChars (env, j%s, %s);\n" n n
+ | BufferIn n ->
+ pr " (*env)->ReleaseByteArrayElements (env, j%s, %s, 0);\n" n n
| StringList n | DeviceList n ->
+ pr " for (i = 0; i < %s_len; ++i) {\n" n;
+ pr " jobject o = (*env)->GetObjectArrayElement (env, j%s, i);\n"
+ n;
+ pr " (*env)->ReleaseStringUTFChars (env, o, %s[i]);\n" n;
+ pr " }\n";
pr " free (%s);\n" n
+ | Bool n
+ | Int n
+ | Int64 n -> ()
) (snd style);
- pr " if (r == %s)\n" error_code;
- pr " rb_raise (e_Error, \"%%s\", guestfs_last_error (g));\n";
- pr "\n";
+ (* Check for errors. *)
+ pr " if (r == %s) {\n" error_code;
+ pr " throw_exception (env, guestfs_last_error (g));\n";
+ pr " return %s;\n" no_ret;
+ pr " }\n";
+ (* Return value. *)
(match fst style with
- | RErr ->
- pr " return Qnil;\n"
- | RInt _ | RBool _ ->
- pr " return INT2NUM (r);\n"
- | RInt64 _ ->
- pr " return ULL2NUM (r);\n"
- | RConstString _ ->
- pr " return rb_str_new2 (r);\n";
+ | RErr -> ()
+ | RInt _ -> pr " return (jint) r;\n"
+ | RBool _ -> pr " return (jboolean) r;\n"
+ | RInt64 _ -> pr " return (jlong) r;\n"
+ | RConstString _ -> pr " return (*env)->NewStringUTF (env, r);\n"
| RConstOptString _ ->
- pr " if (r)\n";
- pr " return rb_str_new2 (r);\n";
- pr " else\n";
- pr " return Qnil;\n";
+ pr " return (*env)->NewStringUTF (env, r); /* XXX r NULL? */\n"
| RString _ ->
- pr " VALUE rv = rb_str_new2 (r);\n";
+ pr " jr = (*env)->NewStringUTF (env, r);\n";
pr " free (r);\n";
- pr " return rv;\n";
+ pr " return jr;\n"
| RStringList _ ->
- pr " int i, len = 0;\n";
- pr " for (i = 0; r[i] != NULL; ++i) len++;\n";
- pr " VALUE rv = rb_ary_new2 (len);\n";
- pr " for (i = 0; r[i] != NULL; ++i) {\n";
- pr " rb_ary_push (rv, rb_str_new2 (r[i]));\n";
+ pr " for (r_len = 0; r[r_len] != NULL; ++r_len) ;\n";
+ pr " cl = (*env)->FindClass (env, \"java/lang/String\");\n";
+ pr " jstr = (*env)->NewStringUTF (env, \"\");\n";
+ pr " jr = (*env)->NewObjectArray (env, r_len, cl, jstr);\n";
+ pr " for (i = 0; i < r_len; ++i) {\n";
+ pr " jstr = (*env)->NewStringUTF (env, r[i]);\n";
+ pr " (*env)->SetObjectArrayElement (env, jr, i, jstr);\n";
pr " free (r[i]);\n";
pr " }\n";
pr " free (r);\n";
- pr " return rv;\n"
+ pr " return jr;\n"
| RStruct (_, typ) ->
+ let jtyp = java_name_of_struct typ in
let cols = cols_of_struct typ in
- generate_ruby_struct_code typ cols
+ generate_java_struct_return typ jtyp cols
| RStructList (_, typ) ->
+ let jtyp = java_name_of_struct typ in
let cols = cols_of_struct typ in
- generate_ruby_struct_list_code typ cols
+ generate_java_struct_list_return typ jtyp cols
| RHashtable _ ->
- pr " VALUE rv = rb_hash_new ();\n";
- pr " int i;\n";
- pr " for (i = 0; r[i] != NULL; i+=2) {\n";
- pr " rb_hash_aset (rv, rb_str_new2 (r[i]), rb_str_new2 (r[i+1]));\n";
- pr " free (r[i]);\n";
- pr " free (r[i+1]);\n";
- pr " }\n";
- pr " free (r);\n";
- pr " return rv;\n"
+ (* XXX *)
+ pr " throw_exception (env, \"%s: internal error: please let us know how to make a Java HashMap from JNI bindings!\");\n" name;
+ pr " return NULL;\n"
| RBufferOut _ ->
- pr " VALUE rv = rb_str_new (r, size);\n";
+ pr " jr = (*env)->NewStringUTF (env, r); /* XXX size */\n";
pr " free (r);\n";
- pr " return rv;\n";
+ pr " return jr;\n"
);
pr "}\n";
pr "\n"
- ) all_functions;
-
- pr "\
-/* Initialize the module. */
-void Init__guestfs ()
-{
- m_guestfs = rb_define_module (\"Guestfs\");
- c_guestfs = rb_define_class_under (m_guestfs, \"Guestfs\", rb_cObject);
- e_Error = rb_define_class_under (m_guestfs, \"Error\", rb_eStandardError);
-
- rb_define_module_function (m_guestfs, \"create\", ruby_guestfs_create, 0);
- rb_define_method (c_guestfs, \"close\", ruby_guestfs_close, 0);
-
-";
- (* Define the rest of the methods. *)
- List.iter (
- fun (name, style, _, _, _, _, _) ->
- pr " rb_define_method (c_guestfs, \"%s\",\n" name;
- pr " ruby_guestfs_%s, %d);\n" name (List.length (snd style))
- ) all_functions;
-
- pr "}\n"
-
-(* Ruby code to return a struct. *)
-and generate_ruby_struct_code typ cols =
- pr " VALUE rv = rb_hash_new ();\n";
+ ) all_functions
+
+and generate_java_struct_return typ jtyp cols =
+ pr " cl = (*env)->FindClass (env, \"com/redhat/et/libguestfs/%s\");\n" jtyp;
+ pr " jr = (*env)->AllocObject (env, cl);\n";
List.iter (
function
| name, FString ->
- pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_str_new2 (r->%s));\n" name name
- | name, FBuffer ->
- pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_str_new (r->%s, r->%s_len));\n" name name name
+ pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
+ pr " (*env)->SetObjectField (env, jr, fl, (*env)->NewStringUTF (env, r->%s));\n" name;
| name, FUUID ->
- pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_str_new (r->%s, 32));\n" name name
- | name, (FBytes|FUInt64) ->
- pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), ULL2NUM (r->%s));\n" name name
- | name, FInt64 ->
- pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), LL2NUM (r->%s));\n" name name
- | name, FUInt32 ->
- pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), UINT2NUM (r->%s));\n" name name
- | name, FInt32 ->
- pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), INT2NUM (r->%s));\n" name name
+ pr " {\n";
+ pr " char s[33];\n";
+ pr " memcpy (s, r->%s, 32);\n" name;
+ pr " s[32] = 0;\n";
+ pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
+ pr " (*env)->SetObjectField (env, jr, fl, (*env)->NewStringUTF (env, s));\n";
+ pr " }\n";
+ | name, FBuffer ->
+ pr " {\n";
+ pr " int len = r->%s_len;\n" name;
+ pr " char s[len+1];\n";
+ pr " memcpy (s, r->%s, len);\n" name;
+ pr " s[len] = 0;\n";
+ pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
+ pr " (*env)->SetObjectField (env, jr, fl, (*env)->NewStringUTF (env, s));\n";
+ pr " }\n";
+ | name, (FBytes|FUInt64|FInt64) ->
+ pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"J\");\n" name;
+ pr " (*env)->SetLongField (env, jr, fl, r->%s);\n" name;
+ | name, (FUInt32|FInt32) ->
+ pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"I\");\n" name;
+ pr " (*env)->SetLongField (env, jr, fl, r->%s);\n" name;
| name, FOptPercent ->
- pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), rb_dbl2big (r->%s));\n" name name
- | name, FChar -> (* XXX wrong? *)
- pr " rb_hash_aset (rv, rb_str_new2 (\"%s\"), ULL2NUM (r->%s));\n" name name
+ pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"F\");\n" name;
+ pr " (*env)->SetFloatField (env, jr, fl, r->%s);\n" name;
+ | name, FChar ->
+ pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"C\");\n" name;
+ pr " (*env)->SetLongField (env, jr, fl, r->%s);\n" name;
) cols;
- pr " guestfs_free_%s (r);\n" typ;
- pr " return rv;\n"
+ pr " free (r);\n";
+ pr " return jr;\n"
-(* Ruby code to return a struct list. *)
-and generate_ruby_struct_list_code typ cols =
- pr " VALUE rv = rb_ary_new2 (r->len);\n";
- pr " int i;\n";
+and generate_java_struct_list_return typ jtyp cols =
+ pr " cl = (*env)->FindClass (env, \"com/redhat/et/libguestfs/%s\");\n" jtyp;
+ pr " jr = (*env)->NewObjectArray (env, r->len, cl, NULL);\n";
pr " for (i = 0; i < r->len; ++i) {\n";
- pr " VALUE hv = rb_hash_new ();\n";
+ pr " jfl = (*env)->AllocObject (env, cl);\n";
List.iter (
function
| name, FString ->
- pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_str_new2 (r->val[i].%s));\n" name name
- | name, FBuffer ->
- pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_str_new (r->val[i].%s, r->val[i].%s_len));\n" name name name
+ pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
+ pr " (*env)->SetObjectField (env, jfl, fl, (*env)->NewStringUTF (env, r->val[i].%s));\n" name;
| name, FUUID ->
- pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_str_new (r->val[i].%s, 32));\n" name name
- | name, (FBytes|FUInt64) ->
- pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), ULL2NUM (r->val[i].%s));\n" name name
- | name, FInt64 ->
- pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), LL2NUM (r->val[i].%s));\n" name name
- | name, FUInt32 ->
- pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), UINT2NUM (r->val[i].%s));\n" name name
- | name, FInt32 ->
- pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), INT2NUM (r->val[i].%s));\n" name name
+ pr " {\n";
+ pr " char s[33];\n";
+ pr " memcpy (s, r->val[i].%s, 32);\n" name;
+ pr " s[32] = 0;\n";
+ pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
+ pr " (*env)->SetObjectField (env, jfl, fl, (*env)->NewStringUTF (env, s));\n";
+ pr " }\n";
+ | name, FBuffer ->
+ pr " {\n";
+ pr " int len = r->val[i].%s_len;\n" name;
+ pr " char s[len+1];\n";
+ pr " memcpy (s, r->val[i].%s, len);\n" name;
+ pr " s[len] = 0;\n";
+ pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
+ pr " (*env)->SetObjectField (env, jfl, fl, (*env)->NewStringUTF (env, s));\n";
+ pr " }\n";
+ | name, (FBytes|FUInt64|FInt64) ->
+ pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"J\");\n" name;
+ pr " (*env)->SetLongField (env, jfl, fl, r->val[i].%s);\n" name;
+ | name, (FUInt32|FInt32) ->
+ pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"I\");\n" name;
+ pr " (*env)->SetLongField (env, jfl, fl, r->val[i].%s);\n" name;
| name, FOptPercent ->
- pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), rb_dbl2big (r->val[i].%s));\n" name name
- | name, FChar -> (* XXX wrong? *)
- pr " rb_hash_aset (hv, rb_str_new2 (\"%s\"), ULL2NUM (r->val[i].%s));\n" name name
+ pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"F\");\n" name;
+ pr " (*env)->SetFloatField (env, jfl, fl, r->val[i].%s);\n" name;
+ | name, FChar ->
+ pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"C\");\n" name;
+ pr " (*env)->SetLongField (env, jfl, fl, r->val[i].%s);\n" name;
) cols;
- pr " rb_ary_push (rv, hv);\n";
+ pr " (*env)->SetObjectArrayElement (env, jfl, i, jfl);\n";
pr " }\n";
pr " guestfs_free_%s_list (r);\n" typ;
- pr " return rv;\n"
-
-(* Generate Java bindings GuestFS.java file. *)
-and generate_java_java () =
- generate_header CStyle LGPLv2;
-
- pr "\
-package com.redhat.et.libguestfs;
-
-import java.util.HashMap;
-import com.redhat.et.libguestfs.LibGuestFSException;
-import com.redhat.et.libguestfs.PV;
-import com.redhat.et.libguestfs.VG;
-import com.redhat.et.libguestfs.LV;
-import com.redhat.et.libguestfs.Stat;
-import com.redhat.et.libguestfs.StatVFS;
-import com.redhat.et.libguestfs.IntBool;
-import com.redhat.et.libguestfs.Dirent;
-
-/**
- * The GuestFS object is a libguestfs handle.
- *
- * @author rjones
- */
-public class GuestFS {
- // Load the native code.
- static {
- System.loadLibrary (\"guestfs_jni\");
- }
-
- /**
- * The native guestfs_h pointer.
- */
- long g;
-
- /**
- * Create a libguestfs handle.
- *
- * @throws LibGuestFSException
- */
- public GuestFS () throws LibGuestFSException
- {
- g = _create ();
- }
- private native long _create () throws LibGuestFSException;
-
- /**
- * Close a libguestfs handle.
- *
- * You can also leave handles to be collected by the garbage
- * collector, but this method ensures that the resources used
- * by the handle are freed up immediately. If you call any
- * other methods after closing the handle, you will get an
- * exception.
- *
- * @throws LibGuestFSException
- */
- public void close () throws LibGuestFSException
- {
- if (g != 0)
- _close (g);
- g = 0;
- }
- private native void _close (long g) throws LibGuestFSException;
-
- public void finalize () throws LibGuestFSException
- {
- close ();
- }
+ pr " return jr;\n"
-";
+and generate_java_makefile_inc () =
+ generate_header HashStyle GPLv2plus;
+ pr "java_built_sources = \\\n";
List.iter (
- fun (name, style, _, flags, _, shortdesc, longdesc) ->
- if not (List.mem NotInDocs flags); then (
- let doc = replace_str longdesc "C<guestfs_" "C<g." in
- let doc =
- if List.mem ProtocolLimitWarning flags then
- doc ^ "\n\n" ^ protocol_limit_warning
- else doc in
- let doc =
- if List.mem DangerWillRobinson flags then
- doc ^ "\n\n" ^ danger_will_robinson
- else doc in
- let doc =
- match deprecation_notice flags with
- | None -> doc
- | Some txt -> doc ^ "\n\n" ^ txt in
- let doc = pod2text ~width:60 name doc in
- let doc = List.map ( (* RHBZ#501883 *)
- function
- | "" -> "<p>"
- | nonempty -> nonempty
- ) doc in
- let doc = String.concat "\n * " doc in
-
- pr " /**\n";
- pr " * %s\n" shortdesc;
- pr " * <p>\n";
- pr " * %s\n" doc;
- pr " * @throws LibGuestFSException\n";
- pr " */\n";
- pr " ";
- );
- generate_java_prototype ~public:true ~semicolon:false name style;
- pr "\n";
- pr " {\n";
- pr " if (g == 0)\n";
- pr " throw new LibGuestFSException (\"%s: handle is closed\");\n"
- name;
- pr " ";
- if fst style <> RErr then pr "return ";
- pr "_%s " name;
- generate_java_call_args ~handle:"g" (snd style);
- pr ";\n";
- pr " }\n";
- pr " ";
- generate_java_prototype ~privat:true ~native:true name style;
- pr "\n";
- pr "\n";
- ) all_functions;
-
- pr "}\n"
+ fun (typ, jtyp) ->
+ pr "\tcom/redhat/et/libguestfs/%s.java \\\n" jtyp;
+ ) java_structs;
+ pr "\tcom/redhat/et/libguestfs/GuestFS.java\n"
-(* Generate Java call arguments, eg "(handle, foo, bar)" *)
-and generate_java_call_args ~handle args =
- pr "(%s" handle;
- List.iter (fun arg -> pr ", %s" (name_of_argt arg)) args;
- pr ")"
+and generate_haskell_hs () =
+ generate_header HaskellStyle LGPLv2plus;
-and generate_java_prototype ?(public=false) ?(privat=false) ?(native=false)
- ?(semicolon=true) name style =
- if privat then pr "private ";
- if public then pr "public ";
- if native then pr "native ";
+ (* XXX We only know how to generate partial FFI for Haskell
+ * at the moment. Please help out!
+ *)
+ let can_generate style =
+ match style with
+ | RErr, _
+ | RInt _, _
+ | RInt64 _, _ -> true
+ | RBool _, _
+ | RConstString _, _
+ | RConstOptString _, _
+ | RString _, _
+ | RStringList _, _
+ | RStruct _, _
+ | RStructList _, _
+ | RHashtable _, _
+ | RBufferOut _, _ -> false in
- (* return type *)
- (match fst style with
- | RErr -> pr "void ";
- | RInt _ -> pr "int ";
- | RInt64 _ -> pr "long ";
- | RBool _ -> pr "boolean ";
- | RConstString _ | RConstOptString _ | RString _
- | RBufferOut _ -> pr "String ";
- | RStringList _ -> pr "String[] ";
- | RStruct (_, typ) ->
- let name = java_name_of_struct typ in
- pr "%s " name;
- | RStructList (_, typ) ->
- let name = java_name_of_struct typ in
- pr "%s[] " name;
- | RHashtable _ -> pr "HashMap<String,String> ";
- );
+ pr "\
+{-# INCLUDE <guestfs.h> #-}
+{-# LANGUAGE ForeignFunctionInterface #-}
- if native then pr "_%s " name else pr "%s " name;
- pr "(";
- let needs_comma = ref false in
- if native then (
- pr "long g";
- needs_comma := true
- );
+module Guestfs (
+ create";
- (* args *)
+ (* List out the names of the actions we want to export. *)
List.iter (
- fun arg ->
- if !needs_comma then pr ", ";
- needs_comma := true;
+ fun (name, style, _, _, _, _, _) ->
+ if can_generate style then pr ",\n %s" name
+ ) all_functions;
- match arg with
- | Pathname n
- | Device n | Dev_or_Path n
- | String n
- | OptString n
- | FileIn n
- | FileOut n ->
- pr "String %s" n
- | StringList n | DeviceList n ->
- pr "String[] %s" n
- | Bool n ->
- pr "boolean %s" n
- | Int n ->
- pr "int %s" n
- | Int64 n ->
- pr "long %s" n
- ) (snd style);
+ pr "
+ ) where
- pr ")\n";
- pr " throws LibGuestFSException";
- if semicolon then pr ";"
+-- Unfortunately some symbols duplicate ones already present
+-- in Prelude. We don't know which, so we hard-code a list
+-- here.
+import Prelude hiding (truncate)
-and generate_java_struct jtyp cols =
- generate_header CStyle LGPLv2;
+import Foreign
+import Foreign.C
+import Foreign.C.Types
+import IO
+import Control.Exception
+import Data.Typeable
- pr "\
-package com.redhat.et.libguestfs;
+data GuestfsS = GuestfsS -- represents the opaque C struct
+type GuestfsP = Ptr GuestfsS -- guestfs_h *
+type GuestfsH = ForeignPtr GuestfsS -- guestfs_h * with attached finalizer
-/**
- * Libguestfs %s structure.
- *
- * @author rjones
- * @see GuestFS
- */
-public class %s {
-" jtyp jtyp;
+-- XXX define properly later XXX
+data PV = PV
+data VG = VG
+data LV = LV
+data IntBool = IntBool
+data Stat = Stat
+data StatVFS = StatVFS
+data Hashtable = Hashtable
- List.iter (
- function
- | name, FString
- | name, FUUID
- | name, FBuffer -> pr " public String %s;\n" name
- | name, (FBytes|FUInt64|FInt64) -> pr " public long %s;\n" name
- | name, (FUInt32|FInt32) -> pr " public int %s;\n" name
- | name, FChar -> pr " public char %s;\n" name
- | name, FOptPercent ->
- pr " /* The next field is [0..100] or -1 meaning 'not present': */\n";
- pr " public float %s;\n" name
- ) cols;
+foreign import ccall unsafe \"guestfs_create\" c_create
+ :: IO GuestfsP
+foreign import ccall unsafe \"&guestfs_close\" c_close
+ :: FunPtr (GuestfsP -> IO ())
+foreign import ccall unsafe \"guestfs_set_error_handler\" c_set_error_handler
+ :: GuestfsP -> Ptr CInt -> Ptr CInt -> IO ()
- pr "}\n"
+create :: IO GuestfsH
+create = do
+ p <- c_create
+ c_set_error_handler p nullPtr nullPtr
+ h <- newForeignPtr c_close p
+ return h
-and generate_java_c () =
- generate_header CStyle LGPLv2;
+foreign import ccall unsafe \"guestfs_last_error\" c_last_error
+ :: GuestfsP -> IO CString
- pr "\
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+-- last_error :: GuestfsH -> IO (Maybe String)
+-- last_error h = do
+-- str <- withForeignPtr h (\\p -> c_last_error p)
+-- maybePeek peekCString str
-#include \"com_redhat_et_libguestfs_GuestFS.h\"
-#include \"guestfs.h\"
+last_error :: GuestfsH -> IO (String)
+last_error h = do
+ str <- withForeignPtr h (\\p -> c_last_error p)
+ if (str == nullPtr)
+ then return \"no error\"
+ else peekCString str
-/* Note that this function returns. The exception is not thrown
- * until after the wrapper function returns.
- */
-static void
-throw_exception (JNIEnv *env, const char *msg)
-{
- jclass cl;
- cl = (*env)->FindClass (env,
- \"com/redhat/et/libguestfs/LibGuestFSException\");
- (*env)->ThrowNew (env, cl, msg);
-}
+";
+
+ (* Generate wrappers for each foreign function. *)
+ List.iter (
+ fun (name, style, _, _, _, _, _) ->
+ if can_generate style then (
+ pr "foreign import ccall unsafe \"guestfs_%s\" c_%s\n" name name;
+ pr " :: ";
+ generate_haskell_prototype ~handle:"GuestfsP" style;
+ pr "\n";
+ pr "\n";
+ pr "%s :: " name;
+ generate_haskell_prototype ~handle:"GuestfsH" ~hs:true style;
+ pr "\n";
+ pr "%s %s = do\n" name
+ (String.concat " " ("h" :: List.map name_of_argt (snd style)));
+ pr " r <- ";
+ (* Convert pointer arguments using with* functions. *)
+ List.iter (
+ function
+ | FileIn n
+ | FileOut n
+ | Pathname n | Device n | Dev_or_Path n | String n | Key n ->
+ pr "withCString %s $ \\%s -> " n n
+ | BufferIn n ->
+ pr "withCStringLen %s $ \\(%s, %s_size) -> " n n n
+ | OptString n -> pr "maybeWith withCString %s $ \\%s -> " n n
+ | StringList n | DeviceList n -> pr "withMany withCString %s $ \\%s -> withArray0 nullPtr %s $ \\%s -> " n n n n
+ | Bool _ | Int _ | Int64 _ -> ()
+ ) (snd style);
+ (* Convert integer arguments. *)
+ let args =
+ List.map (
+ function
+ | Bool n -> sprintf "(fromBool %s)" n
+ | Int n -> sprintf "(fromIntegral %s)" n
+ | Int64 n -> sprintf "(fromIntegral %s)" n
+ | FileIn n | FileOut n
+ | Pathname n | Device n | Dev_or_Path n
+ | String n | OptString n
+ | StringList n | DeviceList n
+ | Key n -> n
+ | BufferIn n -> sprintf "%s (fromIntegral %s_size)" n n
+ ) (snd style) in
+ pr "withForeignPtr h (\\p -> c_%s %s)\n" name
+ (String.concat " " ("p" :: args));
+ (match fst style with
+ | RErr | RInt _ | RInt64 _ | RBool _ ->
+ pr " if (r == -1)\n";
+ pr " then do\n";
+ pr " err <- last_error h\n";
+ pr " fail err\n";
+ | RConstString _ | RConstOptString _ | RString _
+ | RStringList _ | RStruct _
+ | RStructList _ | RHashtable _ | RBufferOut _ ->
+ pr " if (r == nullPtr)\n";
+ pr " then do\n";
+ pr " err <- last_error h\n";
+ pr " fail err\n";
+ );
+ (match fst style with
+ | RErr ->
+ pr " else return ()\n"
+ | RInt _ ->
+ pr " else return (fromIntegral r)\n"
+ | RInt64 _ ->
+ pr " else return (fromIntegral r)\n"
+ | RBool _ ->
+ pr " else return (toBool r)\n"
+ | RConstString _
+ | RConstOptString _
+ | RString _
+ | RStringList _
+ | RStruct _
+ | RStructList _
+ | RHashtable _
+ | RBufferOut _ ->
+ pr " else return ()\n" (* XXXXXXXXXXXXXXXXXXXX *)
+ );
+ pr "\n";
+ )
+ ) all_functions
+
+and generate_haskell_prototype ~handle ?(hs = false) style =
+ pr "%s -> " handle;
+ let string = if hs then "String" else "CString" in
+ let int = if hs then "Int" else "CInt" in
+ let bool = if hs then "Bool" else "CInt" in
+ let int64 = if hs then "Integer" else "Int64" in
+ List.iter (
+ fun arg ->
+ (match arg with
+ | Pathname _ | Device _ | Dev_or_Path _ | String _ | Key _ ->
+ pr "%s" string
+ | BufferIn _ ->
+ if hs then pr "String"
+ else pr "CString -> CInt"
+ | OptString _ -> if hs then pr "Maybe String" else pr "CString"
+ | StringList _ | DeviceList _ -> if hs then pr "[String]" else pr "Ptr CString"
+ | Bool _ -> pr "%s" bool
+ | Int _ -> pr "%s" int
+ | Int64 _ -> pr "%s" int
+ | FileIn _ -> pr "%s" string
+ | FileOut _ -> pr "%s" string
+ );
+ pr " -> ";
+ ) (snd style);
+ pr "IO (";
+ (match fst style with
+ | RErr -> if not hs then pr "CInt"
+ | RInt _ -> pr "%s" int
+ | RInt64 _ -> pr "%s" int64
+ | RBool _ -> pr "%s" bool
+ | RConstString _ -> pr "%s" string
+ | RConstOptString _ -> pr "Maybe %s" string
+ | RString _ -> pr "%s" string
+ | RStringList _ -> pr "[%s]" string
+ | RStruct (_, typ) ->
+ let name = java_name_of_struct typ in
+ pr "%s" name
+ | RStructList (_, typ) ->
+ let name = java_name_of_struct typ in
+ pr "[%s]" name
+ | RHashtable _ -> pr "Hashtable"
+ | RBufferOut _ -> pr "%s" string
+ );
+ pr ")"
-JNIEXPORT jlong JNICALL
-Java_com_redhat_et_libguestfs_GuestFS__1create
- (JNIEnv *env, jobject obj)
-{
- guestfs_h *g;
+and generate_csharp () =
+ generate_header CPlusPlusStyle LGPLv2plus;
- g = guestfs_create ();
- if (g == NULL) {
- throw_exception (env, \"GuestFS.create: failed to allocate handle\");
- return 0;
- }
- guestfs_set_error_handler (g, NULL, NULL);
- return (jlong) (long) g;
-}
+ (* XXX Make this configurable by the C# assembly users. *)
+ let library = "libguestfs.so.0" in
-JNIEXPORT void JNICALL
-Java_com_redhat_et_libguestfs_GuestFS__1close
- (JNIEnv *env, jobject obj, jlong jg)
+ pr "\
+// These C# bindings are highly experimental at present.
+//
+// Firstly they only work on Linux (ie. Mono). In order to get them
+// to work on Windows (ie. .Net) you would need to port the library
+// itself to Windows first.
+//
+// The second issue is that some calls are known to be incorrect and
+// can cause Mono to segfault. Particularly: calls which pass or
+// return string[], or return any structure value. This is because
+// we haven't worked out the correct way to do this from C#.
+//
+// The third issue is that when compiling you get a lot of warnings.
+// We are not sure whether the warnings are important or not.
+//
+// Fourthly we do not routinely build or test these bindings as part
+// of the make && make check cycle, which means that regressions might
+// go unnoticed.
+//
+// Suggestions and patches are welcome.
+
+// To compile:
+//
+// gmcs Libguestfs.cs
+// mono Libguestfs.exe
+//
+// (You'll probably want to add a Test class / static main function
+// otherwise this won't do anything useful).
+
+using System;
+using System.IO;
+using System.Runtime.InteropServices;
+using System.Runtime.Serialization;
+using System.Collections;
+
+namespace Guestfs
{
- guestfs_h *g = (guestfs_h *) (long) jg;
- guestfs_close (g);
-}
+ class Error : System.ApplicationException
+ {
+ public Error (string message) : base (message) {}
+ protected Error (SerializationInfo info, StreamingContext context) {}
+ }
-";
+ class Guestfs
+ {
+ IntPtr _handle;
- List.iter (
- fun (name, style, _, _, _, _, _) ->
- pr "JNIEXPORT ";
- (match fst style with
- | RErr -> pr "void ";
- | RInt _ -> pr "jint ";
- | RInt64 _ -> pr "jlong ";
- | RBool _ -> pr "jboolean ";
- | RConstString _ | RConstOptString _ | RString _
- | RBufferOut _ -> pr "jstring ";
- | RStruct _ | RHashtable _ ->
- pr "jobject ";
- | RStringList _ | RStructList _ ->
- pr "jobjectArray ";
- );
- pr "JNICALL\n";
- pr "Java_com_redhat_et_libguestfs_GuestFS_";
- pr "%s" (replace_str ("_" ^ name) "_" "_1");
- pr "\n";
- pr " (JNIEnv *env, jobject obj, jlong jg";
- List.iter (
- function
- | Pathname n
- | Device n | Dev_or_Path n
- | String n
- | OptString n
- | FileIn n
- | FileOut n ->
- pr ", jstring j%s" n
- | StringList n | DeviceList n ->
- pr ", jobjectArray j%s" n
- | Bool n ->
- pr ", jboolean j%s" n
- | Int n ->
- pr ", jint j%s" n
- | Int64 n ->
- pr ", jlong j%s" n
- ) (snd style);
- pr ")\n";
- pr "{\n";
- pr " guestfs_h *g = (guestfs_h *) (long) jg;\n";
- let error_code, no_ret =
- match fst style with
- | RErr -> pr " int r;\n"; "-1", ""
- | RBool _
- | RInt _ -> pr " int r;\n"; "-1", "0"
- | RInt64 _ -> pr " int64_t r;\n"; "-1", "0"
- | RConstString _ -> pr " const char *r;\n"; "NULL", "NULL"
- | RConstOptString _ -> pr " const char *r;\n"; "NULL", "NULL"
- | RString _ ->
- pr " jstring jr;\n";
- pr " char *r;\n"; "NULL", "NULL"
- | RStringList _ ->
- pr " jobjectArray jr;\n";
- pr " int r_len;\n";
- pr " jclass cl;\n";
- pr " jstring jstr;\n";
- pr " char **r;\n"; "NULL", "NULL"
- | RStruct (_, typ) ->
- pr " jobject jr;\n";
- pr " jclass cl;\n";
- pr " jfieldID fl;\n";
- pr " struct guestfs_%s *r;\n" typ; "NULL", "NULL"
- | RStructList (_, typ) ->
- pr " jobjectArray jr;\n";
- pr " jclass cl;\n";
- pr " jfieldID fl;\n";
- pr " jobject jfl;\n";
- pr " struct guestfs_%s_list *r;\n" typ; "NULL", "NULL"
- | RHashtable _ -> pr " char **r;\n"; "NULL", "NULL"
- | RBufferOut _ ->
- pr " jstring jr;\n";
- pr " char *r;\n";
- pr " size_t size;\n";
- "NULL", "NULL" in
- List.iter (
- function
- | Pathname n
- | Device n | Dev_or_Path n
- | String n
- | OptString n
- | FileIn n
- | FileOut n ->
- pr " const char *%s;\n" n
- | StringList n | DeviceList n ->
- pr " int %s_len;\n" n;
- pr " const char **%s;\n" n
- | Bool n
- | Int n ->
- pr " int %s;\n" n
- | Int64 n ->
- pr " int64_t %s;\n" n
- ) (snd style);
+ [DllImport (\"%s\")]
+ static extern IntPtr guestfs_create ();
- let needs_i =
- (match fst style with
- | RStringList _ | RStructList _ -> true
- | RErr | RBool _ | RInt _ | RInt64 _ | RConstString _
- | RConstOptString _
- | RString _ | RBufferOut _ | RStruct _ | RHashtable _ -> false) ||
- List.exists (function
- | StringList _ -> true
- | DeviceList _ -> true
- | _ -> false) (snd style) in
- if needs_i then
- pr " int i;\n";
+ public Guestfs ()
+ {
+ _handle = guestfs_create ();
+ if (_handle == IntPtr.Zero)
+ throw new Error (\"could not create guestfs handle\");
+ }
- pr "\n";
+ [DllImport (\"%s\")]
+ static extern void guestfs_close (IntPtr h);
- (* Get the parameters. *)
- List.iter (
- function
- | Pathname n
- | Device n | Dev_or_Path n
- | String n
- | FileIn n
- | FileOut n ->
- pr " %s = (*env)->GetStringUTFChars (env, j%s, NULL);\n" n n
- | OptString n ->
- (* This is completely undocumented, but Java null becomes
- * a NULL parameter.
- *)
- pr " %s = j%s ? (*env)->GetStringUTFChars (env, j%s, NULL) : NULL;\n" n n n
- | StringList n | DeviceList n ->
- pr " %s_len = (*env)->GetArrayLength (env, j%s);\n" n n;
- pr " %s = guestfs_safe_malloc (g, sizeof (char *) * (%s_len+1));\n" n n;
- pr " for (i = 0; i < %s_len; ++i) {\n" n;
- pr " jobject o = (*env)->GetObjectArrayElement (env, j%s, i);\n"
- n;
- pr " %s[i] = (*env)->GetStringUTFChars (env, o, NULL);\n" n;
- pr " }\n";
- pr " %s[%s_len] = NULL;\n" n n;
- | Bool n
- | Int n
- | Int64 n ->
- pr " %s = j%s;\n" n n
- ) (snd style);
+ ~Guestfs ()
+ {
+ guestfs_close (_handle);
+ }
- (* Make the call. *)
- pr " r = guestfs_%s " name;
- generate_c_call_args ~handle:"g" style;
- pr ";\n";
+ [DllImport (\"%s\")]
+ static extern string guestfs_last_error (IntPtr h);
- (* Release the parameters. *)
+" library library library;
+
+ (* Generate C# structure bindings. We prefix struct names with
+ * underscore because C# cannot have conflicting struct names and
+ * method names (eg. "class stat" and "stat").
+ *)
+ List.iter (
+ fun (typ, cols) ->
+ pr " [StructLayout (LayoutKind.Sequential)]\n";
+ pr " public class _%s {\n" typ;
List.iter (
function
- | Pathname n
- | Device n | Dev_or_Path n
- | String n
- | FileIn n
- | FileOut n ->
- pr " (*env)->ReleaseStringUTFChars (env, j%s, %s);\n" n n
- | OptString n ->
- pr " if (j%s)\n" n;
- pr " (*env)->ReleaseStringUTFChars (env, j%s, %s);\n" n n
- | StringList n | DeviceList n ->
- pr " for (i = 0; i < %s_len; ++i) {\n" n;
- pr " jobject o = (*env)->GetObjectArrayElement (env, j%s, i);\n"
- n;
- pr " (*env)->ReleaseStringUTFChars (env, o, %s[i]);\n" n;
- pr " }\n";
- pr " free (%s);\n" n
- | Bool n
- | Int n
- | Int64 n -> ()
- ) (snd style);
+ | name, FChar -> pr " char %s;\n" name
+ | name, FString -> pr " string %s;\n" name
+ | name, FBuffer ->
+ pr " uint %s_len;\n" name;
+ pr " string %s;\n" name
+ | name, FUUID ->
+ pr " [MarshalAs (UnmanagedType.ByValTStr, SizeConst=16)]\n";
+ pr " string %s;\n" name
+ | name, FUInt32 -> pr " uint %s;\n" name
+ | name, FInt32 -> pr " int %s;\n" name
+ | name, (FUInt64|FBytes) -> pr " ulong %s;\n" name
+ | name, FInt64 -> pr " long %s;\n" name
+ | name, FOptPercent -> pr " float %s; /* [0..100] or -1 */\n" name
+ ) cols;
+ pr " }\n";
+ pr "\n"
+ ) structs;
- (* Check for errors. *)
- pr " if (r == %s) {\n" error_code;
- pr " throw_exception (env, guestfs_last_error (g));\n";
- pr " return %s;\n" no_ret;
- pr " }\n";
+ (* Generate C# function bindings. *)
+ List.iter (
+ fun (name, style, _, _, _, shortdesc, _) ->
+ let rec csharp_return_type () =
+ match fst style with
+ | RErr -> "void"
+ | RBool n -> "bool"
+ | RInt n -> "int"
+ | RInt64 n -> "long"
+ | RConstString n
+ | RConstOptString n
+ | RString n
+ | RBufferOut n -> "string"
+ | RStruct (_,n) -> "_" ^ n
+ | RHashtable n -> "Hashtable"
+ | RStringList n -> "string[]"
+ | RStructList (_,n) -> sprintf "_%s[]" n
+
+ and c_return_type () =
+ match fst style with
+ | RErr
+ | RBool _
+ | RInt _ -> "int"
+ | RInt64 _ -> "long"
+ | RConstString _
+ | RConstOptString _
+ | RString _
+ | RBufferOut _ -> "string"
+ | RStruct (_,n) -> "_" ^ n
+ | RHashtable _
+ | RStringList _ -> "string[]"
+ | RStructList (_,n) -> sprintf "_%s[]" n
+
+ and c_error_comparison () =
+ match fst style with
+ | RErr
+ | RBool _
+ | RInt _
+ | RInt64 _ -> "== -1"
+ | RConstString _
+ | RConstOptString _
+ | RString _
+ | RBufferOut _
+ | RStruct (_,_)
+ | RHashtable _
+ | RStringList _
+ | RStructList (_,_) -> "== null"
+
+ and generate_extern_prototype () =
+ pr " static extern %s guestfs_%s (IntPtr h"
+ (c_return_type ()) name;
+ List.iter (
+ function
+ | Pathname n | Device n | Dev_or_Path n | String n | OptString n
+ | FileIn n | FileOut n
+ | Key n
+ | BufferIn n ->
+ pr ", [In] string %s" n
+ | StringList n | DeviceList n ->
+ pr ", [In] string[] %s" n
+ | Bool n ->
+ pr ", bool %s" n
+ | Int n ->
+ pr ", int %s" n
+ | Int64 n ->
+ pr ", long %s" n
+ ) (snd style);
+ pr ");\n"
+
+ and generate_public_prototype () =
+ pr " public %s %s (" (csharp_return_type ()) name;
+ let comma = ref false in
+ let next () =
+ if !comma then pr ", ";
+ comma := true
+ in
+ List.iter (
+ function
+ | Pathname n | Device n | Dev_or_Path n | String n | OptString n
+ | FileIn n | FileOut n
+ | Key n
+ | BufferIn n ->
+ next (); pr "string %s" n
+ | StringList n | DeviceList n ->
+ next (); pr "string[] %s" n
+ | Bool n ->
+ next (); pr "bool %s" n
+ | Int n ->
+ next (); pr "int %s" n
+ | Int64 n ->
+ next (); pr "long %s" n
+ ) (snd style);
+ pr ")\n"
- (* Return value. *)
+ and generate_call () =
+ pr "guestfs_%s (_handle" name;
+ List.iter (fun arg -> pr ", %s" (name_of_argt arg)) (snd style);
+ pr ");\n";
+ in
+
+ pr " [DllImport (\"%s\")]\n" library;
+ generate_extern_prototype ();
+ pr "\n";
+ pr " /// <summary>\n";
+ pr " /// %s\n" shortdesc;
+ pr " /// </summary>\n";
+ generate_public_prototype ();
+ pr " {\n";
+ pr " %s r;\n" (c_return_type ());
+ pr " r = ";
+ generate_call ();
+ pr " if (r %s)\n" (c_error_comparison ());
+ pr " throw new Error (guestfs_last_error (_handle));\n";
(match fst style with
- | RErr -> ()
- | RInt _ -> pr " return (jint) r;\n"
- | RBool _ -> pr " return (jboolean) r;\n"
- | RInt64 _ -> pr " return (jlong) r;\n"
- | RConstString _ -> pr " return (*env)->NewStringUTF (env, r);\n"
- | RConstOptString _ ->
- pr " return (*env)->NewStringUTF (env, r); /* XXX r NULL? */\n"
- | RString _ ->
- pr " jr = (*env)->NewStringUTF (env, r);\n";
- pr " free (r);\n";
- pr " return jr;\n"
- | RStringList _ ->
- pr " for (r_len = 0; r[r_len] != NULL; ++r_len) ;\n";
- pr " cl = (*env)->FindClass (env, \"java/lang/String\");\n";
- pr " jstr = (*env)->NewStringUTF (env, \"\");\n";
- pr " jr = (*env)->NewObjectArray (env, r_len, cl, jstr);\n";
- pr " for (i = 0; i < r_len; ++i) {\n";
- pr " jstr = (*env)->NewStringUTF (env, r[i]);\n";
- pr " (*env)->SetObjectArrayElement (env, jr, i, jstr);\n";
- pr " free (r[i]);\n";
- pr " }\n";
- pr " free (r);\n";
- pr " return jr;\n"
- | RStruct (_, typ) ->
- let jtyp = java_name_of_struct typ in
- let cols = cols_of_struct typ in
- generate_java_struct_return typ jtyp cols
- | RStructList (_, typ) ->
- let jtyp = java_name_of_struct typ in
- let cols = cols_of_struct typ in
- generate_java_struct_list_return typ jtyp cols
+ | RErr -> ()
+ | RBool _ ->
+ pr " return r != 0 ? true : false;\n"
| RHashtable _ ->
- (* XXX *)
- pr " throw_exception (env, \"%s: internal error: please let us know how to make a Java HashMap from JNI bindings!\");\n" name;
- pr " return NULL;\n"
- | RBufferOut _ ->
- pr " jr = (*env)->NewStringUTF (env, r); /* XXX size */\n";
- pr " free (r);\n";
- pr " return jr;\n"
+ pr " Hashtable rr = new Hashtable ();\n";
+ pr " for (size_t i = 0; i < r.Length; i += 2)\n";
+ pr " rr.Add (r[i], r[i+1]);\n";
+ pr " return rr;\n"
+ | RInt _ | RInt64 _ | RConstString _ | RConstOptString _
+ | RString _ | RBufferOut _ | RStruct _ | RStringList _
+ | RStructList _ ->
+ pr " return r;\n"
);
+ pr " }\n";
+ pr "\n";
+ ) all_functions_sorted;
- pr "}\n";
- pr "\n"
- ) all_functions
+ pr " }
+}
+"
-and generate_java_struct_return typ jtyp cols =
- pr " cl = (*env)->FindClass (env, \"com/redhat/et/libguestfs/%s\");\n" jtyp;
- pr " jr = (*env)->AllocObject (env, cl);\n";
- List.iter (
- function
- | name, FString ->
- pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
- pr " (*env)->SetObjectField (env, jr, fl, (*env)->NewStringUTF (env, r->%s));\n" name;
- | name, FUUID ->
- pr " {\n";
- pr " char s[33];\n";
- pr " memcpy (s, r->%s, 32);\n" name;
- pr " s[32] = 0;\n";
- pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
- pr " (*env)->SetObjectField (env, jr, fl, (*env)->NewStringUTF (env, s));\n";
- pr " }\n";
- | name, FBuffer ->
- pr " {\n";
- pr " int len = r->%s_len;\n" name;
- pr " char s[len+1];\n";
- pr " memcpy (s, r->%s, len);\n" name;
- pr " s[len] = 0;\n";
- pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
- pr " (*env)->SetObjectField (env, jr, fl, (*env)->NewStringUTF (env, s));\n";
- pr " }\n";
- | name, (FBytes|FUInt64|FInt64) ->
- pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"J\");\n" name;
- pr " (*env)->SetLongField (env, jr, fl, r->%s);\n" name;
- | name, (FUInt32|FInt32) ->
- pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"I\");\n" name;
- pr " (*env)->SetLongField (env, jr, fl, r->%s);\n" name;
- | name, FOptPercent ->
- pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"F\");\n" name;
- pr " (*env)->SetFloatField (env, jr, fl, r->%s);\n" name;
- | name, FChar ->
- pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"C\");\n" name;
- pr " (*env)->SetLongField (env, jr, fl, r->%s);\n" name;
- ) cols;
- pr " free (r);\n";
- pr " return jr;\n"
+and generate_php_h () =
+ generate_header CStyle LGPLv2plus;
-and generate_java_struct_list_return typ jtyp cols =
- pr " cl = (*env)->FindClass (env, \"com/redhat/et/libguestfs/%s\");\n" jtyp;
- pr " jr = (*env)->NewObjectArray (env, r->len, cl, NULL);\n";
- pr " for (i = 0; i < r->len; ++i) {\n";
- pr " jfl = (*env)->AllocObject (env, cl);\n";
- List.iter (
- function
- | name, FString ->
- pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
- pr " (*env)->SetObjectField (env, jfl, fl, (*env)->NewStringUTF (env, r->val[i].%s));\n" name;
- | name, FUUID ->
- pr " {\n";
- pr " char s[33];\n";
- pr " memcpy (s, r->val[i].%s, 32);\n" name;
- pr " s[32] = 0;\n";
- pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
- pr " (*env)->SetObjectField (env, jfl, fl, (*env)->NewStringUTF (env, s));\n";
- pr " }\n";
- | name, FBuffer ->
- pr " {\n";
- pr " int len = r->val[i].%s_len;\n" name;
- pr " char s[len+1];\n";
- pr " memcpy (s, r->val[i].%s, len);\n" name;
- pr " s[len] = 0;\n";
- pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"Ljava/lang/String;\");\n" name;
- pr " (*env)->SetObjectField (env, jfl, fl, (*env)->NewStringUTF (env, s));\n";
- pr " }\n";
- | name, (FBytes|FUInt64|FInt64) ->
- pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"J\");\n" name;
- pr " (*env)->SetLongField (env, jfl, fl, r->val[i].%s);\n" name;
- | name, (FUInt32|FInt32) ->
- pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"I\");\n" name;
- pr " (*env)->SetLongField (env, jfl, fl, r->val[i].%s);\n" name;
- | name, FOptPercent ->
- pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"F\");\n" name;
- pr " (*env)->SetFloatField (env, jfl, fl, r->val[i].%s);\n" name;
- | name, FChar ->
- pr " fl = (*env)->GetFieldID (env, cl, \"%s\", \"C\");\n" name;
- pr " (*env)->SetLongField (env, jfl, fl, r->val[i].%s);\n" name;
- ) cols;
- pr " (*env)->SetObjectArrayElement (env, jfl, i, jfl);\n";
- pr " }\n";
- pr " guestfs_free_%s_list (r);\n" typ;
- pr " return jr;\n"
+ pr "\
+#ifndef PHP_GUESTFS_PHP_H
+#define PHP_GUESTFS_PHP_H 1
-and generate_java_makefile_inc () =
- generate_header HashStyle GPLv2;
+#ifdef ZTS
+#include \"TSRM.h\"
+#endif
+
+#define PHP_GUESTFS_PHP_EXTNAME \"guestfs_php\"
+#define PHP_GUESTFS_PHP_VERSION \"1.0\"
+
+PHP_MINIT_FUNCTION (guestfs_php);
+
+#define PHP_GUESTFS_HANDLE_RES_NAME \"guestfs_h\"
+
+PHP_FUNCTION (guestfs_create);
+PHP_FUNCTION (guestfs_last_error);
+";
- pr "java_built_sources = \\\n";
List.iter (
- fun (typ, jtyp) ->
- pr "\tcom/redhat/et/libguestfs/%s.java \\\n" jtyp;
- ) java_structs;
- pr "\tcom/redhat/et/libguestfs/GuestFS.java\n"
+ fun (shortname, style, _, _, _, _, _) ->
+ pr "PHP_FUNCTION (guestfs_%s);\n" shortname
+ ) all_functions_sorted;
-and generate_haskell_hs () =
- generate_header HaskellStyle LGPLv2;
+ pr "\
- (* XXX We only know how to generate partial FFI for Haskell
- * at the moment. Please help out!
- *)
- let can_generate style =
- match style with
- | RErr, _
- | RInt _, _
- | RInt64 _, _ -> true
- | RBool _, _
- | RConstString _, _
- | RConstOptString _, _
- | RString _, _
- | RStringList _, _
- | RStruct _, _
- | RStructList _, _
- | RHashtable _, _
- | RBufferOut _, _ -> false in
+extern zend_module_entry guestfs_php_module_entry;
+#define phpext_guestfs_php_ptr &guestfs_php_module_entry
+
+#endif /* PHP_GUESTFS_PHP_H */
+"
+
+and generate_php_c () =
+ generate_header CStyle LGPLv2plus;
pr "\
-{-# INCLUDE <guestfs.h> #-}
-{-# LANGUAGE ForeignFunctionInterface #-}
+/* NOTE: Be very careful with all macros in PHP header files. The
+ * morons who wrote them aren't good at making them safe for inclusion
+ * in arbitrary places in C code, eg. not using 'do ... while(0)'
+ * or parenthesizing any of the arguments.
+ */
-module Guestfs (
- create";
+/* NOTE (2): Some parts of the API can't be used on 32 bit platforms.
+ * Any 64 bit numbers will be truncated. There's no easy way around
+ * this in PHP.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include <php.h>
+#include <php_guestfs_php.h>
+
+#include \"guestfs.h\"
+
+static int res_guestfs_h;
+
+static void
+guestfs_php_handle_dtor (zend_rsrc_list_entry *rsrc TSRMLS_DC)
+{
+ guestfs_h *g = (guestfs_h *) rsrc->ptr;
+ if (g != NULL)
+ guestfs_close (g);
+}
+
+PHP_MINIT_FUNCTION (guestfs_php)
+{
+ res_guestfs_h =
+ zend_register_list_destructors_ex (guestfs_php_handle_dtor,
+ NULL, PHP_GUESTFS_HANDLE_RES_NAME, module_number);
+}
+
+static function_entry guestfs_php_functions[] = {
+ PHP_FE (guestfs_create, NULL)
+ PHP_FE (guestfs_last_error, NULL)
+";
- (* List out the names of the actions we want to export. *)
List.iter (
- fun (name, style, _, _, _, _, _) ->
- if can_generate style then pr ",\n %s" name
- ) all_functions;
+ fun (shortname, style, _, _, _, _, _) ->
+ pr " PHP_FE (guestfs_%s, NULL)\n" shortname
+ ) all_functions_sorted;
- pr "
- ) where
+ pr " { NULL, NULL, NULL }
+};
--- Unfortunately some symbols duplicate ones already present
--- in Prelude. We don't know which, so we hard-code a list
--- here.
-import Prelude hiding (truncate)
+zend_module_entry guestfs_php_module_entry = {
+#if ZEND_MODULE_API_NO >= 20010901
+ STANDARD_MODULE_HEADER,
+#endif
+ PHP_GUESTFS_PHP_EXTNAME,
+ guestfs_php_functions,
+ PHP_MINIT (guestfs_php),
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+#if ZEND_MODULE_API_NO >= 20010901
+ PHP_GUESTFS_PHP_VERSION,
+#endif
+ STANDARD_MODULE_PROPERTIES
+};
-import Foreign
-import Foreign.C
-import Foreign.C.Types
-import IO
-import Control.Exception
-import Data.Typeable
+#ifdef COMPILE_DL_GUESTFS_PHP
+ZEND_GET_MODULE (guestfs_php)
+#endif
-data GuestfsS = GuestfsS -- represents the opaque C struct
-type GuestfsP = Ptr GuestfsS -- guestfs_h *
-type GuestfsH = ForeignPtr GuestfsS -- guestfs_h * with attached finalizer
+PHP_FUNCTION (guestfs_create)
+{
+ guestfs_h *g = guestfs_create ();
+ if (g == NULL) {
+ RETURN_FALSE;
+ }
--- XXX define properly later XXX
-data PV = PV
-data VG = VG
-data LV = LV
-data IntBool = IntBool
-data Stat = Stat
-data StatVFS = StatVFS
-data Hashtable = Hashtable
+ guestfs_set_error_handler (g, NULL, NULL);
-foreign import ccall unsafe \"guestfs_create\" c_create
- :: IO GuestfsP
-foreign import ccall unsafe \"&guestfs_close\" c_close
- :: FunPtr (GuestfsP -> IO ())
-foreign import ccall unsafe \"guestfs_set_error_handler\" c_set_error_handler
- :: GuestfsP -> Ptr CInt -> Ptr CInt -> IO ()
+ ZEND_REGISTER_RESOURCE (return_value, g, res_guestfs_h);
+}
+
+PHP_FUNCTION (guestfs_last_error)
+{
+ zval *z_g;
+ guestfs_h *g;
+
+ if (zend_parse_parameters (ZEND_NUM_ARGS() TSRMLS_CC, \"r\",
+ &z_g) == FAILURE) {
+ RETURN_FALSE;
+ }
+
+ ZEND_FETCH_RESOURCE (g, guestfs_h *, &z_g, -1, PHP_GUESTFS_HANDLE_RES_NAME,
+ res_guestfs_h);
+ if (g == NULL) {
+ RETURN_FALSE;
+ }
+
+ const char *err = guestfs_last_error (g);
+ if (err) {
+ RETURN_STRING (err, 1);
+ } else {
+ RETURN_NULL ();
+ }
+}
+
+";
+
+ (* Now generate the PHP bindings for each action. *)
+ List.iter (
+ fun (shortname, style, _, _, _, _, _) ->
+ pr "PHP_FUNCTION (guestfs_%s)\n" shortname;
+ pr "{\n";
+ pr " zval *z_g;\n";
+ pr " guestfs_h *g;\n";
+
+ List.iter (
+ function
+ | String n | Device n | Pathname n | Dev_or_Path n
+ | FileIn n | FileOut n | Key n
+ | OptString n
+ | BufferIn n ->
+ pr " char *%s;\n" n;
+ pr " int %s_size;\n" n
+ | StringList n
+ | DeviceList n ->
+ pr " zval *z_%s;\n" n;
+ pr " char **%s;\n" n;
+ | Bool n ->
+ pr " zend_bool %s;\n" n
+ | Int n | Int64 n ->
+ pr " long %s;\n" n
+ ) (snd style);
+
+ pr "\n";
+
+ (* Parse the parameters. *)
+ let param_string = String.concat "" (
+ List.map (
+ function
+ | String n | Device n | Pathname n | Dev_or_Path n
+ | FileIn n | FileOut n | BufferIn n | Key n -> "s"
+ | OptString n -> "s!"
+ | StringList n | DeviceList n -> "a"
+ | Bool n -> "b"
+ | Int n | Int64 n -> "l"
+ ) (snd style)
+ ) in
+
+ pr " if (zend_parse_parameters (ZEND_NUM_ARGS() TSRMLS_CC, \"r%s\",\n"
+ param_string;
+ pr " &z_g";
+ List.iter (
+ function
+ | String n | Device n | Pathname n | Dev_or_Path n
+ | FileIn n | FileOut n | BufferIn n | Key n
+ | OptString n ->
+ pr ", &%s, &%s_size" n n
+ | StringList n | DeviceList n ->
+ pr ", &z_%s" n
+ | Bool n ->
+ pr ", &%s" n
+ | Int n | Int64 n ->
+ pr ", &%s" n
+ ) (snd style);
+ pr ") == FAILURE) {\n";
+ pr " RETURN_FALSE;\n";
+ pr " }\n";
+ pr "\n";
+ pr " ZEND_FETCH_RESOURCE (g, guestfs_h *, &z_g, -1, PHP_GUESTFS_HANDLE_RES_NAME,\n";
+ pr " res_guestfs_h);\n";
+ pr " if (g == NULL) {\n";
+ pr " RETURN_FALSE;\n";
+ pr " }\n";
+ pr "\n";
+
+ List.iter (
+ function
+ | String n | Device n | Pathname n | Dev_or_Path n
+ | FileIn n | FileOut n | Key n
+ | OptString n ->
+ (* Just need to check the string doesn't contain any ASCII
+ * NUL characters, which won't be supported by the C API.
+ *)
+ pr " if (strlen (%s) != %s_size) {\n" n n;
+ pr " fprintf (stderr, \"libguestfs: %s: parameter '%s' contains embedded ASCII NUL.\\n\");\n" shortname n;
+ pr " RETURN_FALSE;\n";
+ pr " }\n";
+ pr "\n"
+ | BufferIn n -> ()
+ | StringList n
+ | DeviceList n ->
+ (* Convert array to list of strings.
+ * http://marc.info/?l=pecl-dev&m=112205192100631&w=2
+ *)
+ pr " {\n";
+ pr " HashTable *a;\n";
+ pr " int n;\n";
+ pr " HashPosition p;\n";
+ pr " zval **d;\n";
+ pr " size_t c = 0;\n";
+ pr "\n";
+ pr " a = Z_ARRVAL_P (z_%s);\n" n;
+ pr " n = zend_hash_num_elements (a);\n";
+ pr " %s = safe_emalloc (n + 1, sizeof (char *), 0);\n" n;
+ pr " for (zend_hash_internal_pointer_reset_ex (a, &p);\n";
+ pr " zend_hash_get_current_data_ex (a, (void **) &d, &p) == SUCCESS;\n";
+ pr " zend_hash_move_forward_ex (a, &p)) {\n";
+ pr " zval t = **d;\n";
+ pr " zval_copy_ctor (&t);\n";
+ pr " convert_to_string (&t);\n";
+ pr " %s[c] = Z_STRVAL (t);\n" n;
+ pr " c++;\n";
+ pr " }\n";
+ pr " %s[c] = NULL;\n" n;
+ pr " }\n";
+ pr "\n"
+ | Bool n | Int n | Int64 n -> ()
+ ) (snd style);
-create :: IO GuestfsH
-create = do
- p <- c_create
- c_set_error_handler p nullPtr nullPtr
- h <- newForeignPtr c_close p
- return h
+ (* Return value. *)
+ let error_code =
+ match fst style with
+ | RErr -> pr " int r;\n"; "-1"
+ | RBool _
+ | RInt _ -> pr " int r;\n"; "-1"
+ | RInt64 _ -> pr " int64_t r;\n"; "-1"
+ | RConstString _ -> pr " const char *r;\n"; "NULL"
+ | RConstOptString _ -> pr " const char *r;\n"; "NULL"
+ | RString _ ->
+ pr " char *r;\n"; "NULL"
+ | RStringList _ ->
+ pr " char **r;\n"; "NULL"
+ | RStruct (_, typ) ->
+ pr " struct guestfs_%s *r;\n" typ; "NULL"
+ | RStructList (_, typ) ->
+ pr " struct guestfs_%s_list *r;\n" typ; "NULL"
+ | RHashtable _ ->
+ pr " char **r;\n"; "NULL"
+ | RBufferOut _ ->
+ pr " char *r;\n";
+ pr " size_t size;\n";
+ "NULL" in
-foreign import ccall unsafe \"guestfs_last_error\" c_last_error
- :: GuestfsP -> IO CString
+ (* Call the function. *)
+ pr " r = guestfs_%s " shortname;
+ generate_c_call_args ~handle:"g" style;
+ pr ";\n";
+ pr "\n";
--- last_error :: GuestfsH -> IO (Maybe String)
--- last_error h = do
--- str <- withForeignPtr h (\\p -> c_last_error p)
--- maybePeek peekCString str
+ (* Free up parameters. *)
+ List.iter (
+ function
+ | String n | Device n | Pathname n | Dev_or_Path n
+ | FileIn n | FileOut n | Key n
+ | OptString n -> ()
+ | BufferIn n -> ()
+ | StringList n
+ | DeviceList n ->
+ pr " {\n";
+ pr " size_t c = 0;\n";
+ pr "\n";
+ pr " for (c = 0; %s[c] != NULL; ++c)\n" n;
+ pr " efree (%s[c]);\n" n;
+ pr " efree (%s);\n" n;
+ pr " }\n";
+ pr "\n"
+ | Bool n | Int n | Int64 n -> ()
+ ) (snd style);
-last_error :: GuestfsH -> IO (String)
-last_error h = do
- str <- withForeignPtr h (\\p -> c_last_error p)
- if (str == nullPtr)
- then return \"no error\"
- else peekCString str
+ (* Check for errors. *)
+ pr " if (r == %s) {\n" error_code;
+ pr " RETURN_FALSE;\n";
+ pr " }\n";
+ pr "\n";
-";
+ (* Convert the return value. *)
+ (match fst style with
+ | RErr ->
+ pr " RETURN_TRUE;\n"
+ | RBool _ ->
+ pr " RETURN_BOOL (r);\n"
+ | RInt _ ->
+ pr " RETURN_LONG (r);\n"
+ | RInt64 _ ->
+ pr " RETURN_LONG (r);\n"
+ | RConstString _ ->
+ pr " RETURN_STRING (r, 1);\n"
+ | RConstOptString _ ->
+ pr " if (r) { RETURN_STRING (r, 1); }\n";
+ pr " else { RETURN_NULL (); }\n"
+ | RString _ ->
+ pr " char *r_copy = estrdup (r);\n";
+ pr " free (r);\n";
+ pr " RETURN_STRING (r_copy, 0);\n"
+ | RBufferOut _ ->
+ pr " char *r_copy = estrndup (r, size);\n";
+ pr " free (r);\n";
+ pr " RETURN_STRING (r_copy, 0);\n"
+ | RStringList _ ->
+ pr " size_t c = 0;\n";
+ pr " array_init (return_value);\n";
+ pr " for (c = 0; r[c] != NULL; ++c) {\n";
+ pr " add_next_index_string (return_value, r[c], 1);\n";
+ pr " free (r[c]);\n";
+ pr " }\n";
+ pr " free (r);\n";
+ | RHashtable _ ->
+ pr " size_t c = 0;\n";
+ pr " array_init (return_value);\n";
+ pr " for (c = 0; r[c] != NULL; c += 2) {\n";
+ pr " add_assoc_string (return_value, r[c], r[c+1], 1);\n";
+ pr " free (r[c]);\n";
+ pr " free (r[c+1]);\n";
+ pr " }\n";
+ pr " free (r);\n";
+ | RStruct (_, typ) ->
+ let cols = cols_of_struct typ in
+ generate_php_struct_code typ cols
+ | RStructList (_, typ) ->
+ let cols = cols_of_struct typ in
+ generate_php_struct_list_code typ cols
+ );
- (* Generate wrappers for each foreign function. *)
- List.iter (
- fun (name, style, _, _, _, _, _) ->
- if can_generate style then (
- pr "foreign import ccall unsafe \"guestfs_%s\" c_%s\n" name name;
- pr " :: ";
- generate_haskell_prototype ~handle:"GuestfsP" style;
- pr "\n";
- pr "\n";
- pr "%s :: " name;
- generate_haskell_prototype ~handle:"GuestfsH" ~hs:true style;
- pr "\n";
- pr "%s %s = do\n" name
- (String.concat " " ("h" :: List.map name_of_argt (snd style)));
- pr " r <- ";
- (* Convert pointer arguments using with* functions. *)
- List.iter (
- function
- | FileIn n
- | FileOut n
- | Pathname n | Device n | Dev_or_Path n | String n -> pr "withCString %s $ \\%s -> " n n
- | OptString n -> pr "maybeWith withCString %s $ \\%s -> " n n
- | StringList n | DeviceList n -> pr "withMany withCString %s $ \\%s -> withArray0 nullPtr %s $ \\%s -> " n n n n
- | Bool _ | Int _ | Int64 _ -> ()
- ) (snd style);
- (* Convert integer arguments. *)
- let args =
- List.map (
- function
- | Bool n -> sprintf "(fromBool %s)" n
- | Int n -> sprintf "(fromIntegral %s)" n
- | Int64 n -> sprintf "(fromIntegral %s)" n
- | FileIn n | FileOut n
- | Pathname n | Device n | Dev_or_Path n | String n | OptString n | StringList n | DeviceList n -> n
- ) (snd style) in
- pr "withForeignPtr h (\\p -> c_%s %s)\n" name
- (String.concat " " ("p" :: args));
- (match fst style with
- | RErr | RInt _ | RInt64 _ | RBool _ ->
- pr " if (r == -1)\n";
- pr " then do\n";
- pr " err <- last_error h\n";
- pr " fail err\n";
- | RConstString _ | RConstOptString _ | RString _
- | RStringList _ | RStruct _
- | RStructList _ | RHashtable _ | RBufferOut _ ->
- pr " if (r == nullPtr)\n";
- pr " then do\n";
- pr " err <- last_error h\n";
- pr " fail err\n";
- );
- (match fst style with
- | RErr ->
- pr " else return ()\n"
- | RInt _ ->
- pr " else return (fromIntegral r)\n"
- | RInt64 _ ->
- pr " else return (fromIntegral r)\n"
- | RBool _ ->
- pr " else return (toBool r)\n"
- | RConstString _
- | RConstOptString _
- | RString _
- | RStringList _
- | RStruct _
- | RStructList _
- | RHashtable _
- | RBufferOut _ ->
- pr " else return ()\n" (* XXXXXXXXXXXXXXXXXXXX *)
- );
- pr "\n";
- )
- ) all_functions
+ pr "}\n";
+ pr "\n"
+ ) all_functions_sorted
-and generate_haskell_prototype ~handle ?(hs = false) style =
- pr "%s -> " handle;
- let string = if hs then "String" else "CString" in
- let int = if hs then "Int" else "CInt" in
- let bool = if hs then "Bool" else "CInt" in
- let int64 = if hs then "Integer" else "Int64" in
+and generate_php_struct_code typ cols =
+ pr " array_init (return_value);\n";
List.iter (
- fun arg ->
- (match arg with
- | Pathname _ | Device _ | Dev_or_Path _ | String _ -> pr "%s" string
- | OptString _ -> if hs then pr "Maybe String" else pr "CString"
- | StringList _ | DeviceList _ -> if hs then pr "[String]" else pr "Ptr CString"
- | Bool _ -> pr "%s" bool
- | Int _ -> pr "%s" int
- | Int64 _ -> pr "%s" int
- | FileIn _ -> pr "%s" string
- | FileOut _ -> pr "%s" string
- );
- pr " -> ";
- ) (snd style);
- pr "IO (";
- (match fst style with
- | RErr -> if not hs then pr "CInt"
- | RInt _ -> pr "%s" int
- | RInt64 _ -> pr "%s" int64
- | RBool _ -> pr "%s" bool
- | RConstString _ -> pr "%s" string
- | RConstOptString _ -> pr "Maybe %s" string
- | RString _ -> pr "%s" string
- | RStringList _ -> pr "[%s]" string
- | RStruct (_, typ) ->
- let name = java_name_of_struct typ in
- pr "%s" name
- | RStructList (_, typ) ->
- let name = java_name_of_struct typ in
- pr "[%s]" name
- | RHashtable _ -> pr "Hashtable"
- | RBufferOut _ -> pr "%s" string
- );
- pr ")"
+ function
+ | name, FString ->
+ pr " add_assoc_string (return_value, \"%s\", r->%s, 1);\n" name name
+ | name, FBuffer ->
+ pr " add_assoc_stringl (return_value, \"%s\", r->%s, r->%s_len, 1);\n"
+ name name name
+ | name, FUUID ->
+ pr " add_assoc_stringl (return_value, \"%s\", r->%s, 32, 1);\n"
+ name name
+ | name, (FBytes|FUInt64|FInt64|FInt32|FUInt32) ->
+ pr " add_assoc_long (return_value, \"%s\", r->%s);\n"
+ name name
+ | name, FChar ->
+ pr " add_assoc_stringl (return_value, \"%s\", &r->%s, 1, 1);\n"
+ name name
+ | name, FOptPercent ->
+ pr " add_assoc_double (return_value, \"%s\", r->%s);\n"
+ name name
+ ) cols;
+ pr " guestfs_free_%s (r);\n" typ
+
+and generate_php_struct_list_code typ cols =
+ pr " array_init (return_value);\n";
+ pr " size_t c = 0;\n";
+ pr " for (c = 0; c < r->len; ++c) {\n";
+ pr " zval *z_elem;\n";
+ pr " ALLOC_INIT_ZVAL (z_elem);\n";
+ pr " array_init (z_elem);\n";
+ List.iter (
+ function
+ | name, FString ->
+ pr " add_assoc_string (z_elem, \"%s\", r->val[c].%s, 1);\n"
+ name name
+ | name, FBuffer ->
+ pr " add_assoc_stringl (z_elem, \"%s\", r->val[c].%s, r->val[c].%s_len, 1);\n"
+ name name name
+ | name, FUUID ->
+ pr " add_assoc_stringl (z_elem, \"%s\", r->val[c].%s, 32, 1);\n"
+ name name
+ | name, (FBytes|FUInt64|FInt64|FInt32|FUInt32) ->
+ pr " add_assoc_long (z_elem, \"%s\", r->val[c].%s);\n"
+ name name
+ | name, FChar ->
+ pr " add_assoc_stringl (z_elem, \"%s\", &r->val[c].%s, 1, 1);\n"
+ name name
+ | name, FOptPercent ->
+ pr " add_assoc_double (z_elem, \"%s\", r->val[c].%s);\n"
+ name name
+ ) cols;
+ pr " add_next_index_zval (return_value, z_elem);\n";
+ pr " }\n";
+ pr " guestfs_free_%s_list (r);\n" typ
and generate_bindtests () =
- generate_header CStyle LGPLv2;
+ generate_header CStyle LGPLv2plus;
pr "\
#include <stdio.h>
static void
print_strings (char *const *argv)
{
- int argc;
+ size_t argc;
printf (\"[\");
for (argc = 0; argv[argc] != NULL; ++argc) {
| Device n | Dev_or_Path n
| String n
| FileIn n
- | FileOut n -> pr " printf (\"%%s\\n\", %s);\n" n
+ | FileOut n
+ | Key n -> pr " printf (\"%%s\\n\", %s);\n" n
+ | BufferIn n ->
+ pr " {\n";
+ pr " size_t i;\n";
+ pr " for (i = 0; i < %s_size; ++i)\n" n;
+ pr " printf (\"<%%02x>\", %s[i]);\n" n;
+ pr " printf (\"\\n\");\n";
+ pr " }\n";
| OptString n -> pr " printf (\"%%s\\n\", %s ? %s : \"null\");\n" n n
| StringList n | DeviceList n -> pr " print_strings (%s);\n" n
| Bool n -> pr " printf (\"%%s\\n\", %s ? \"true\" : \"false\");\n" n
) tests
and generate_ocaml_bindtests () =
- generate_header OCamlStyle GPLv2;
+ generate_header OCamlStyle GPLv2plus;
pr "\
let () =
| CallInt64 i when i >= 0L -> Int64.to_string i ^ "L"
| CallInt64 i (* when i < 0L *) -> "(" ^ Int64.to_string i ^ "L)"
| CallBool b -> string_of_bool b
+ | CallBuffer s -> sprintf "%S" s
) args
)
in
and generate_perl_bindtests () =
pr "#!/usr/bin/perl -w\n";
- generate_header HashStyle GPLv2;
+ generate_header HashStyle GPLv2plus;
pr "\
use strict;
| CallInt i -> string_of_int i
| CallInt64 i -> Int64.to_string i
| CallBool b -> if b then "1" else "0"
+ | CallBuffer s -> "\"" ^ c_quote s ^ "\""
) args
)
in
pr "print \"EOF\\n\"\n"
and generate_python_bindtests () =
- generate_header HashStyle GPLv2;
+ generate_header HashStyle GPLv2plus;
pr "\
import guestfs
| CallInt i -> string_of_int i
| CallInt64 i -> Int64.to_string i
| CallBool b -> if b then "1" else "0"
+ | CallBuffer s -> "\"" ^ c_quote s ^ "\""
) args
)
in
pr "print \"EOF\"\n"
and generate_ruby_bindtests () =
- generate_header HashStyle GPLv2;
+ generate_header HashStyle GPLv2plus;
pr "\
require 'guestfs'
| CallInt i -> string_of_int i
| CallInt64 i -> Int64.to_string i
| CallBool b -> string_of_bool b
+ | CallBuffer s -> "\"" ^ c_quote s ^ "\""
) args
)
in
pr "print \"EOF\\n\"\n"
and generate_java_bindtests () =
- generate_header CStyle GPLv2;
+ generate_header CStyle GPLv2plus;
pr "\
import com.redhat.et.libguestfs.*;
| CallInt i -> string_of_int i
| CallInt64 i -> Int64.to_string i
| CallBool b -> string_of_bool b
+ | CallBuffer s ->
+ "new byte[] { " ^ String.concat "," (
+ map_chars (fun c -> string_of_int (Char.code c)) s
+ ) ^ " }"
) args
)
in
"
and generate_haskell_bindtests () =
- generate_header HaskellStyle GPLv2;
+ generate_header HaskellStyle GPLv2plus;
pr "\
module Bindtests where
| CallInt64 i -> Int64.to_string i
| CallBool true -> "True"
| CallBool false -> "False"
+ | CallBuffer s -> "\"" ^ c_quote s ^ "\""
) args
)
in
and generate_lang_bindtests call =
call "test0" [CallString "abc"; CallOptString (Some "def");
CallStringList []; CallBool false;
- CallInt 0; CallInt64 0L; CallString "123"; CallString "456"];
+ CallInt 0; CallInt64 0L; CallString "123"; CallString "456";
+ CallBuffer "abc\000abc"];
call "test0" [CallString "abc"; CallOptString None;
CallStringList []; CallBool false;
- CallInt 0; CallInt64 0L; CallString "123"; CallString "456"];
+ CallInt 0; CallInt64 0L; CallString "123"; CallString "456";
+ CallBuffer "abc\000abc"];
call "test0" [CallString ""; CallOptString (Some "def");
CallStringList []; CallBool false;
- CallInt 0; CallInt64 0L; CallString "123"; CallString "456"];
+ CallInt 0; CallInt64 0L; CallString "123"; CallString "456";
+ CallBuffer "abc\000abc"];
call "test0" [CallString ""; CallOptString (Some "");
CallStringList []; CallBool false;
- CallInt 0; CallInt64 0L; CallString "123"; CallString "456"];
+ CallInt 0; CallInt64 0L; CallString "123"; CallString "456";
+ CallBuffer "abc\000abc"];
call "test0" [CallString "abc"; CallOptString (Some "def");
CallStringList ["1"]; CallBool false;
- CallInt 0; CallInt64 0L; CallString "123"; CallString "456"];
+ CallInt 0; CallInt64 0L; CallString "123"; CallString "456";
+ CallBuffer "abc\000abc"];
call "test0" [CallString "abc"; CallOptString (Some "def");
CallStringList ["1"; "2"]; CallBool false;
- CallInt 0; CallInt64 0L; CallString "123"; CallString "456"];
+ CallInt 0; CallInt64 0L; CallString "123"; CallString "456";
+ CallBuffer "abc\000abc"];
call "test0" [CallString "abc"; CallOptString (Some "def");
CallStringList ["1"]; CallBool true;
- CallInt 0; CallInt64 0L; CallString "123"; CallString "456"];
+ CallInt 0; CallInt64 0L; CallString "123"; CallString "456";
+ CallBuffer "abc\000abc"];
call "test0" [CallString "abc"; CallOptString (Some "def");
CallStringList ["1"]; CallBool false;
- CallInt (-1); CallInt64 (-1L); CallString "123"; CallString "456"];
+ CallInt (-1); CallInt64 (-1L); CallString "123"; CallString "456";
+ CallBuffer "abc\000abc"];
call "test0" [CallString "abc"; CallOptString (Some "def");
CallStringList ["1"]; CallBool false;
- CallInt (-2); CallInt64 (-2L); CallString "123"; CallString "456"];
+ CallInt (-2); CallInt64 (-2L); CallString "123"; CallString "456";
+ CallBuffer "abc\000abc"];
call "test0" [CallString "abc"; CallOptString (Some "def");
CallStringList ["1"]; CallBool false;
- CallInt 1; CallInt64 1L; CallString "123"; CallString "456"];
+ CallInt 1; CallInt64 1L; CallString "123"; CallString "456";
+ CallBuffer "abc\000abc"];
call "test0" [CallString "abc"; CallOptString (Some "def");
CallStringList ["1"]; CallBool false;
- CallInt 2; CallInt64 2L; CallString "123"; CallString "456"];
+ CallInt 2; CallInt64 2L; CallString "123"; CallString "456";
+ CallBuffer "abc\000abc"];
call "test0" [CallString "abc"; CallOptString (Some "def");
CallStringList ["1"]; CallBool false;
- CallInt 4095; CallInt64 4095L; CallString "123"; CallString "456"];
+ CallInt 4095; CallInt64 4095L; CallString "123"; CallString "456";
+ CallBuffer "abc\000abc"];
call "test0" [CallString "abc"; CallOptString (Some "def");
CallStringList ["1"]; CallBool false;
- CallInt 0; CallInt64 0L; CallString ""; CallString ""]
+ CallInt 0; CallInt64 0L; CallString ""; CallString "";
+ CallBuffer "abc\000abc"]
(* XXX Add here tests of the return and error functions. *)
-(* This is used to generate the src/MAX_PROC_NR file which
- * contains the maximum procedure number, a surrogate for the
- * ABI version number. See src/Makefile.am for the details.
- *)
and generate_max_proc_nr () =
- let proc_nrs = List.map (
- fun (_, _, proc_nr, _, _, _, _) -> proc_nr
- ) daemon_functions in
-
- let max_proc_nr = List.fold_left max 0 proc_nrs in
-
pr "%d\n" max_proc_nr
-let output_to filename =
+let output_to filename k =
let filename_new = filename ^ ".new" in
chan := open_out filename_new;
- let close () =
- close_out !chan;
- chan := Pervasives.stdout;
-
- (* Is the new file different from the current file? *)
- if Sys.file_exists filename && files_equal filename filename_new then
- unlink filename_new (* same, so skip it *)
- else (
- (* different, overwrite old one *)
- (try chmod filename 0o644 with Unix_error _ -> ());
- rename filename_new filename;
- chmod filename 0o444;
- printf "written %s\n%!" filename;
- )
- in
- close
+ k ();
+ close_out !chan;
+ chan := Pervasives.stdout;
+
+ (* Is the new file different from the current file? *)
+ if Sys.file_exists filename && files_equal filename filename_new then
+ unlink filename_new (* same, so skip it *)
+ else (
+ (* different, overwrite old one *)
+ (try chmod filename 0o644 with Unix_error _ -> ());
+ rename filename_new filename;
+ chmod filename 0o444;
+ printf "written %s\n%!" filename;
+ )
let perror msg = function
| Unix_error (err, _, _) ->
check_functions ();
- let close = output_to "src/guestfs_protocol.x" in
- generate_xdr ();
- close ();
-
- let close = output_to "src/guestfs-structs.h" in
- generate_structs_h ();
- close ();
-
- let close = output_to "src/guestfs-actions.h" in
- generate_actions_h ();
- close ();
-
- let close = output_to "src/guestfs-internal-actions.h" in
- generate_internal_actions_h ();
- close ();
-
- let close = output_to "src/guestfs-actions.c" in
- generate_client_actions ();
- close ();
-
- let close = output_to "daemon/actions.h" in
- generate_daemon_actions_h ();
- close ();
-
- let close = output_to "daemon/stubs.c" in
- generate_daemon_actions ();
- close ();
-
- let close = output_to "daemon/names.c" in
- generate_daemon_names ();
- close ();
-
- let close = output_to "daemon/optgroups.c" in
- generate_daemon_optgroups_c ();
- close ();
-
- let close = output_to "daemon/optgroups.h" in
- generate_daemon_optgroups_h ();
- close ();
-
- let close = output_to "capitests/tests.c" in
- generate_tests ();
- close ();
-
- let close = output_to "src/guestfs-bindtests.c" in
- generate_bindtests ();
- close ();
-
- let close = output_to "fish/cmds.c" in
- generate_fish_cmds ();
- close ();
-
- let close = output_to "fish/completion.c" in
- generate_fish_completion ();
- close ();
-
- let close = output_to "guestfs-structs.pod" in
- generate_structs_pod ();
- close ();
-
- let close = output_to "guestfs-actions.pod" in
- generate_actions_pod ();
- close ();
-
- let close = output_to "guestfs-availability.pod" in
- generate_availability_pod ();
- close ();
-
- let close = output_to "guestfish-actions.pod" in
- generate_fish_actions_pod ();
- close ();
-
- let close = output_to "ocaml/guestfs.mli" in
- generate_ocaml_mli ();
- close ();
-
- let close = output_to "ocaml/guestfs.ml" in
- generate_ocaml_ml ();
- close ();
-
- let close = output_to "ocaml/guestfs_c_actions.c" in
- generate_ocaml_c ();
- close ();
-
- let close = output_to "ocaml/bindtests.ml" in
- generate_ocaml_bindtests ();
- close ();
-
- let close = output_to "perl/Guestfs.xs" in
- generate_perl_xs ();
- close ();
-
- let close = output_to "perl/lib/Sys/Guestfs.pm" in
- generate_perl_pm ();
- close ();
-
- let close = output_to "perl/bindtests.pl" in
- generate_perl_bindtests ();
- close ();
-
- let close = output_to "python/guestfs-py.c" in
- generate_python_c ();
- close ();
-
- let close = output_to "python/guestfs.py" in
- generate_python_py ();
- close ();
-
- let close = output_to "python/bindtests.py" in
- generate_python_bindtests ();
- close ();
-
- let close = output_to "ruby/ext/guestfs/_guestfs.c" in
- generate_ruby_c ();
- close ();
-
- let close = output_to "ruby/bindtests.rb" in
- generate_ruby_bindtests ();
- close ();
-
- let close = output_to "java/com/redhat/et/libguestfs/GuestFS.java" in
- generate_java_java ();
- close ();
+ output_to "src/guestfs_protocol.x" generate_xdr;
+ output_to "src/guestfs-structs.h" generate_structs_h;
+ output_to "src/guestfs-actions.h" generate_actions_h;
+ output_to "src/guestfs-internal-actions.h" generate_internal_actions_h;
+ output_to "src/actions.c" generate_client_actions;
+ output_to "src/bindtests.c" generate_bindtests;
+ output_to "src/guestfs-structs.pod" generate_structs_pod;
+ output_to "src/guestfs-actions.pod" generate_actions_pod;
+ output_to "src/guestfs-availability.pod" generate_availability_pod;
+ output_to "src/MAX_PROC_NR" generate_max_proc_nr;
+ output_to "src/libguestfs.syms" generate_linker_script;
+ output_to "daemon/actions.h" generate_daemon_actions_h;
+ output_to "daemon/stubs.c" generate_daemon_actions;
+ output_to "daemon/names.c" generate_daemon_names;
+ output_to "daemon/optgroups.c" generate_daemon_optgroups_c;
+ output_to "daemon/optgroups.h" generate_daemon_optgroups_h;
+ output_to "capitests/tests.c" generate_tests;
+ output_to "fish/cmds.c" generate_fish_cmds;
+ output_to "fish/completion.c" generate_fish_completion;
+ output_to "fish/guestfish-actions.pod" generate_fish_actions_pod;
+ output_to "fish/prepopts.c" generate_fish_prep_options_c;
+ output_to "fish/prepopts.h" generate_fish_prep_options_h;
+ output_to "ocaml/guestfs.mli" generate_ocaml_mli;
+ output_to "ocaml/guestfs.ml" generate_ocaml_ml;
+ output_to "ocaml/guestfs_c_actions.c" generate_ocaml_c;
+ output_to "ocaml/bindtests.ml" generate_ocaml_bindtests;
+ output_to "perl/Guestfs.xs" generate_perl_xs;
+ output_to "perl/lib/Sys/Guestfs.pm" generate_perl_pm;
+ output_to "perl/bindtests.pl" generate_perl_bindtests;
+ output_to "python/guestfs-py.c" generate_python_c;
+ output_to "python/guestfs.py" generate_python_py;
+ output_to "python/bindtests.py" generate_python_bindtests;
+ output_to "ruby/ext/guestfs/_guestfs.c" generate_ruby_c;
+ output_to "ruby/bindtests.rb" generate_ruby_bindtests;
+ output_to "java/com/redhat/et/libguestfs/GuestFS.java" generate_java_java;
List.iter (
fun (typ, jtyp) ->
let cols = cols_of_struct typ in
let filename = sprintf "java/com/redhat/et/libguestfs/%s.java" jtyp in
- let close = output_to filename in
- generate_java_struct jtyp cols;
- close ();
+ output_to filename (generate_java_struct jtyp cols);
) java_structs;
- let close = output_to "java/Makefile.inc" in
- generate_java_makefile_inc ();
- close ();
-
- let close = output_to "java/com_redhat_et_libguestfs_GuestFS.c" in
- generate_java_c ();
- close ();
-
- let close = output_to "java/Bindtests.java" in
- generate_java_bindtests ();
- close ();
-
- let close = output_to "haskell/Guestfs.hs" in
- generate_haskell_hs ();
- close ();
-
- let close = output_to "haskell/Bindtests.hs" in
- generate_haskell_bindtests ();
- close ();
-
- let close = output_to "src/MAX_PROC_NR" in
- generate_max_proc_nr ();
- close ();
+ output_to "java/Makefile.inc" generate_java_makefile_inc;
+ output_to "java/com_redhat_et_libguestfs_GuestFS.c" generate_java_c;
+ output_to "java/Bindtests.java" generate_java_bindtests;
+ output_to "haskell/Guestfs.hs" generate_haskell_hs;
+ output_to "haskell/Bindtests.hs" generate_haskell_bindtests;
+ output_to "csharp/Libguestfs.cs" generate_csharp;
+ output_to "php/extension/php_guestfs_php.h" generate_php_h;
+ output_to "php/extension/guestfs_php.c" generate_php_c;
(* Always generate this file last, and unconditionally. It's used
* by the Makefile to know when we must re-run the generator.
*)
let chan = open_out "src/stamp-generator" in
fprintf chan "1\n";
- close_out chan
+ close_out chan;
+
+ printf "generated %d lines of code\n" !lines
git.annexia.org / libguestfs.git / blobdiff