X-Git-Url: http://git.annexia.org/?p=libguestfs.git;a=blobdiff_plain;f=guestfs-actions.pod;h=d35d1aa22dba91be38249dd0949f0745f0b1912c;hp=0b06470da0b3332bb5a40e0bfcb6484f2e3aa21d;hb=2eda36dbadd4687f7488a86eea9313bbe30cde82;hpb=3e408f493496597dc026d20778837f421f05a9dd

diff --git a/guestfs-actions.pod b/guestfs-actions.pod
index 0b06470..d35d1aa 100644
--- a/guestfs-actions.pod
+++ b/guestfs-actions.pod
@@ -7,6 +7,11 @@ 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<guestfs_config> call instead.
+
 This function returns 0 on success or -1 on error.
 
 =head2 guestfs_add_drive
@@ -27,6 +32,35 @@ image).
 
 This is equivalent to the qemu parameter C<-drive file=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<guestfs_config> call instead.
+
+This function returns 0 on success or -1 on error.
+
+=head2 guestfs_add_drive_ro
+
+ int guestfs_add_drive_ro (guestfs_h *handle,
+		const char *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<guestfs_config> call instead.
+
 This function returns 0 on success or -1 on error.
 
 =head2 guestfs_aug_close
@@ -477,7 +511,9 @@ 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<guestfs_sh>).
 
 The return value is anything printed to I<stdout> by
 the command.
@@ -512,6 +548,8 @@ FTP.
 This is the same as C<guestfs_command>, but splits the
 result into a list of lines.
 
+See also: C<guestfs_sh_lines>
+
 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>.
@@ -846,6 +884,26 @@ This returns the verbose messages flag.
 
 This function returns a C truth value on success or -1 on error.
 
+=head2 guestfs_glob_expand
+
+ char **guestfs_glob_expand (guestfs_h *handle,
+		const char *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.
+
+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>.
+
 =head2 guestfs_grub_install
 
  int guestfs_grub_install (guestfs_h *handle,
@@ -1232,6 +1290,26 @@ either a destination filename or destination directory.
 
 This function returns 0 on success or -1 on error.
 
+=head2 guestfs_ntfs_3g_probe
+
+ int guestfs_ntfs_3g_probe (guestfs_h *handle,
+		int rw,
+		const char *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.
+
+On error this function returns -1.
+
 =head2 guestfs_ping_daemon
 
  int guestfs_ping_daemon (guestfs_h *handle);
@@ -1595,6 +1673,50 @@ not intended to be parsed.
 This function returns a string, or NULL on error.
 I<The caller must free the returned string after use>.
 
+=head2 guestfs_sh
+
+ char *guestfs_sh (guestfs_h *handle,
+		const char *command);
+
+This call runs a command from the guest filesystem via the
+guest's C</bin/sh>.
+
+This is like C<guestfs_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<guestfs_command> apply to this call.
+
+This function returns a string, or NULL on error.
+I<The caller must free the returned string after use>.
+
+=head2 guestfs_sh_lines
+
+ char **guestfs_sh_lines (guestfs_h *handle,
+		const char *command);
+
+This is the same as C<guestfs_sh>, but splits the result
+into a list of lines.
+
+See also: C<guestfs_command_lines>
+
+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>.
+
+=head2 guestfs_sleep
+
+ int guestfs_sleep (guestfs_h *handle,
+		int secs);
+
+Sleep for C<secs> seconds.
+
+This function returns 0 on success or -1 on error.
+
 =head2 guestfs_stat
 
  struct guestfs_stat *guestfs_stat (guestfs_h *handle,