X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=perl%2Flib%2FSys%2FGuestfs.pm;h=83fbbb106b4b13074822b69710a7380bf5290fe3;hb=da947eadcfa1367c2d634667068db813a87a6dd1;hp=cba0032517a3f5bf59db2ca30527f2f2a5acd099;hpb=3e408f493496597dc026d20778837f421f05a9dd;p=libguestfs.git

diff --git a/perl/lib/Sys/Guestfs.pm b/perl/lib/Sys/Guestfs.pm
index cba0032..83fbbb1 100644
--- a/perl/lib/Sys/Guestfs.pm
+++ b/perl/lib/Sys/Guestfs.pm
@@ -97,6 +97,11 @@ This function adds a virtual CD-ROM disk image to the guest.
 
 This is equivalent to the qemu parameter C<-cdrom filename>.
 
+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
+the general C<$h-E<gt>config> call instead.
+
 =item $h->add_drive ($filename);
 
 This function adds a virtual machine disk image C<filename> to the
@@ -110,7 +115,31 @@ for whatever operations you want to perform (ie. read access if you
 just want to read the image or write access if you want to modify the
 image).
 
-This is equivalent to the qemu parameter C<-drive file=filename>.
+This is equivalent to the qemu parameter C<-drive file=filename,cache=off>.
+
+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
+the general C<$h-E<gt>config> call instead.
+
+=item $h->add_drive_ro ($filename);
+
+This adds a drive in snapshot mode, making it effectively
+read-only.
+
+Note that writes to the device are allowed, and will be seen for
+the duration of the guestfs handle, but they are written
+to a temporary file which is discarded as soon as the guestfs
+handle is closed.  We don't currently have any method to enable
+changes to be committed, although qemu can support this.
+
+This is equivalent to the qemu parameter
+C<-drive file=filename,snapshot=on>.
+
+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
+the general C<$h-E<gt>config> call instead.
 
 =item $h->aug_close ();
 
@@ -403,7 +432,9 @@ or compatible processor architecture).
 The single parameter is an argv-style list of arguments.
 The first element is the name of the program to run.
 Subsequent elements are parameters.  The list must be
-non-empty (ie. must contain a program name).
+non-empty (ie. must contain a program name).  Note that
+the command runs directly, and is I<not> invoked via
+the shell (see C<$h-E<gt>sh>).
 
 The return value is anything printed to I<stdout> by
 the command.
@@ -432,6 +463,8 @@ FTP.
 This is the same as C<$h-E<gt>command>, but splits the
 result into a list of lines.
 
+See also: C<$h-E<gt>sh_lines>
+
 Because of the message protocol, there is a transfer limit 
 of somewhere between 2MB and 4MB.  To transfer large files you should use
 FTP.
@@ -643,6 +676,19 @@ For more information on states, see L<guestfs(3)>.
 
 This returns the verbose messages flag.
 
+=item @paths = $h->glob_expand ($pattern);
+
+This command searches for all the pathnames matching
+C<pattern> according to the wildcard expansion rules
+used by the shell.
+
+If no paths match, then this returns an empty list
+(note: not an error).
+
+It is just a wrapper around the C L<glob(3)> function
+with flags C<GLOB_MARK|GLOB_BRACE>.
+See that manual page for more details.
+
 =item $h->grub_install ($root, $device);
 
 This command installs GRUB (the Grand Unified Bootloader) on
@@ -806,6 +852,27 @@ Create a directory named C<path>.
 Create a directory named C<path>, creating any parent directories
 as necessary.  This is like the C<mkdir -p> shell command.
 
+=item $dir = $h->mkdtemp ($template);
+
+This command creates a temporary directory.  The
+C<template> parameter should be a full pathname for the
+temporary directory name with the final six characters being
+"XXXXXX".
+
+For example: "/tmp/myprogXXXXXX" or "/Temp/myprogXXXXXX",
+the second one being suitable for Windows filesystems.
+
+The name of the temporary directory that was created
+is returned.
+
+The temporary directory is created with mode 0700
+and is owned by root.
+
+The caller is responsible for deleting the temporary
+directory and its contents after use.
+
+See also: L<mkdtemp(3)>
+
 =item $h->mkfs ($fstype, $device);
 
 This creates a filesystem on C<device> (usually a partition
@@ -860,6 +927,20 @@ Some internal mounts are not shown.
 This moves a file from C<src> to C<dest> where C<dest> is
 either a destination filename or destination directory.
 
+=item $status = $h->ntfs_3g_probe ($rw, $device);
+
+This command runs the L<ntfs-3g.probe(8)> command which probes
+an NTFS C<device> for mountability.  (Not all NTFS volumes can
+be mounted read-write, and some cannot be mounted at all).
+
+C<rw> is a boolean flag.  Set it to true if you want to test
+if the volume can be mounted read-write.  Set it to false if
+you want to test if the volume can be mounted read-only.
+
+The return value is an integer which C<0> if the operation
+would succeed, or some non-zero value documented in the
+L<ntfs-3g.probe(8)> manual page.
+
 =item $h->ping_daemon ();
 
 This is a test probe into the guestfs daemon running inside
@@ -939,6 +1020,38 @@ command.
 
 Remove the single directory C<path>.
 
+=item $h->scrub_device ($device);
+
+This command writes patterns over C<device> to make data retrieval
+more difficult.
+
+It is an interface to the L<scrub(1)> program.  See that
+manual page for more details.
+
+B<This command is dangerous.  Without careful use you
+can easily destroy all your data>.
+
+=item $h->scrub_file ($file);
+
+This command writes patterns over a file to make data retrieval
+more difficult.
+
+The file is I<removed> after scrubbing.
+
+It is an interface to the L<scrub(1)> program.  See that
+manual page for more details.
+
+=item $h->scrub_freespace ($dir);
+
+This command creates the directory C<dir> and then fills it
+with files until the filesystem is full, and scrubs the files
+as for C<$h-E<gt>scrub_file>, and deletes them.
+The intention is to scrub any free space on the partition
+containing C<dir>.
+
+It is an interface to the L<scrub(1)> program.  See that
+manual page for more details.
+
 =item $h->set_append ($append);
 
 This function is used to add additional options to the
@@ -1082,6 +1195,32 @@ This displays the partition table on C<device>, in the
 human-readable output of the L<sfdisk(8)> command.  It is
 not intended to be parsed.
 
+=item $output = $h->sh ($command);
+
+This call runs a command from the guest filesystem via the
+guest's C</bin/sh>.
+
+This is like C<$h-E<gt>command>, but passes the command to:
+
+ /bin/sh -c "command"
+
+Depending on the guest's shell, this usually results in
+wildcards being expanded, shell expressions being interpolated
+and so on.
+
+All the provisos about C<$h-E<gt>command> apply to this call.
+
+=item @lines = $h->sh_lines ($command);
+
+This is the same as C<$h-E<gt>sh>, but splits the result
+into a list of lines.
+
+See also: C<$h-E<gt>command_lines>
+
+=item $h->sleep ($secs);
+
+Sleep for C<secs> seconds.
+
 =item %statbuf = $h->stat ($path);
 
 Returns file information for the given C<path>.
@@ -1279,6 +1418,8 @@ How many blocks are zeroed isn't specified (but it's I<not> enough
 to securely wipe the device).  It should be sufficient to remove
 any partition tables, filesystem superblocks and so on.
 
+See also: C<$h-E<gt>scrub_device>.
+
 =item $h->zerofree ($device);
 
 This runs the I<zerofree> program on C<device>.  This program