+ ("is_zero", (RBool "zeroflag", [Pathname "path"], []), 283, [],
+ [InitISOFS, Always, TestOutputTrue (
+ [["is_zero"; "/100kallzeroes"]]);
+ InitISOFS, Always, TestOutputFalse (
+ [["is_zero"; "/100kallspaces"]])],
+ "test if a file contains all zero bytes",
+ "\
+This returns true iff the file exists and the file is empty or
+it contains all zero bytes.");
+
+ ("is_zero_device", (RBool "zeroflag", [Device "device"], []), 284, [],
+ [InitBasicFS, Always, TestOutputTrue (
+ [["umount"; "/dev/sda1"];
+ ["zero_device"; "/dev/sda1"];
+ ["is_zero_device"; "/dev/sda1"]]);
+ InitBasicFS, Always, TestOutputFalse (
+ [["is_zero_device"; "/dev/sda1"]])],
+ "test if a device contains all zero bytes",
+ "\
+This returns true iff the device exists and contains all zero bytes.
+
+Note that for large devices this can take a long time to run.");
+
+ ("list_9p", (RStringList "mounttags", [], []), 285, [],
+ [],
+ "list 9p filesystems",
+ "\
+List all 9p filesystems attached to the guest. A list of
+mount tags is returned.");
+
+ ("mount_9p", (RErr, [String "mounttag"; String "mountpoint"], [String "options"]), 286, [],
+ [],
+ "mount 9p filesystem",
+ "\
+Mount the virtio-9p filesystem with the tag C<mounttag> on the
+directory C<mountpoint>.
+
+If required, C<trans=virtio> will be automatically added to the options.
+Any other options required can be passed in the optional C<options>
+parameter.");
+
+ ("list_dm_devices", (RStringList "devices", [], []), 287, [],
+ [],
+ "list device mapper devices",
+ "\
+List all device mapper devices.
+
+The returned list contains C</dev/mapper/*> devices, eg. ones created
+by a previous call to C<guestfs_luks_open>.
+
+Device mapper devices which correspond to logical volumes are I<not>
+returned in this list. Call C<guestfs_lvs> if you want to list logical
+volumes.");
+
+ ("ntfsresize_opts", (RErr, [Device "device"], [Int64 "size"; Bool "force"]), 288, [Optional "ntfsprogs"],
+ [],
+ "resize an NTFS filesystem",
+ "\
+This command resizes an NTFS filesystem, expanding or
+shrinking it to the size of the underlying device.
+
+The optional parameters are:
+
+=over 4
+
+=item C<size>
+
+The new size (in bytes) of the filesystem. If omitted, the filesystem
+is resized to fit the container (eg. partition).
+
+=item C<force>
+
+If this option is true, then force the resize of the filesystem
+even if the filesystem is marked as requiring a consistency check.
+
+After the resize operation, the filesystem is always marked
+as requiring a consistency check (for safety). You have to boot
+into Windows to perform this check and clear this condition.
+If you I<don't> set the C<force> option then it is not
+possible to call C<guestfs_ntfsresize_opts> multiple times on a
+single filesystem without booting into Windows between each resize.
+
+=back
+
+See also L<ntfsresize(8)>.");
+
+ ("btrfs_filesystem_resize", (RErr, [Pathname "mountpoint"], [Int64 "size"]), 289, [Optional "btrfs"],
+ [],
+ "resize a btrfs filesystem",
+ "\
+This command resizes a btrfs filesystem.
+
+Note that unlike other resize calls, the filesystem has to be
+mounted and the parameter is the mountpoint not the device
+(this is a requirement of btrfs itself).
+
+The optional parameters are:
+
+=over 4
+
+=item C<size>
+
+The new size (in bytes) of the filesystem. If omitted, the filesystem
+is resized to the maximum size.
+
+=back
+
+See also L<btrfs(8)>.");
+
+ ("write_append", (RErr, [Pathname "path"; BufferIn "content"], []), 290, [ProtocolLimitWarning],
+ [InitScratchFS, Always, TestOutput (
+ [["write"; "/write_append"; "line1\n"];
+ ["write_append"; "/write_append"; "line2\n"];
+ ["write_append"; "/write_append"; "line3a"];
+ ["write_append"; "/write_append"; "line3b\n"];
+ ["cat"; "/write_append"]], "line1\nline2\nline3aline3b\n")],
+ "append content to end of file",
+ "\
+This call appends C<content> to the end of file C<path>. If
+C<path> does not exist, then a new file is created.
+
+See also C<guestfs_write>.");
+