of somewhere between 2MB and 4MB. To transfer large files you should use
FTP.
+=head2 guestfs_checksum
+
+ char *guestfs_checksum (guestfs_h *handle,
+ const char *csumtype,
+ const char *path);
+
+This call computes the MD5, SHAx or CRC checksum of the
+file named C<path>.
+
+The type of checksum to compute is given by the C<csumtype>
+parameter which must have one of the following values:
+
+=over 4
+
+=item C<crc>
+
+Compute the cyclic redundancy check (CRC) specified by POSIX
+for the C<cksum> command.
+
+=item C<md5>
+
+Compute the MD5 hash (using the C<md5sum> program).
+
+=item C<sha1>
+
+Compute the SHA1 hash (using the C<sha1sum> program).
+
+=item C<sha224>
+
+Compute the SHA224 hash (using the C<sha224sum> program).
+
+=item C<sha256>
+
+Compute the SHA256 hash (using the C<sha256sum> program).
+
+=item C<sha384>
+
+Compute the SHA384 hash (using the C<sha384sum> program).
+
+=item C<sha512>
+
+Compute the SHA512 hash (using the C<sha512sum> program).
+
+=back
+
+The checksum is returned as a printable string.
+
+This function returns a string, or NULL on error.
+I<The caller must free the returned string after use>.
+
=head2 guestfs_chmod
int guestfs_chmod (guestfs_h *handle,
This function returns 0 on success or -1 on error.
+=head2 guestfs_tar_in
+
+ int guestfs_tar_in (guestfs_h *handle,
+ const char *tarfile,
+ const char *directory);
+
+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>.
+
+This function returns 0 on success or -1 on error.
+
+=head2 guestfs_tar_out
+
+ int guestfs_tar_out (guestfs_h *handle,
+ const char *directory,
+ const char *tarfile);
+
+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>.
+
+This function returns 0 on success or -1 on error.
+
+=head2 guestfs_tgz_in
+
+ int guestfs_tgz_in (guestfs_h *handle,
+ const char *tarball,
+ const char *directory);
+
+This command uploads and unpacks local file C<tarball> (a
+I<gzip compressed> tar file) into C<directory>.
+
+To upload an uncompressed tarball, use C<guestfs_tar_in>.
+
+This function returns 0 on success or -1 on error.
+
+=head2 guestfs_tgz_out
+
+ int guestfs_tgz_out (guestfs_h *handle,
+ const char *directory,
+ const char *tarball);
+
+This command packs the contents of C<directory> and downloads
+it to local file C<tarball>.
+
+To download an uncompressed tarball, use C<guestfs_tar_out>.
+
+This function returns 0 on success or -1 on error.
+
=head2 guestfs_touch
int guestfs_touch (guestfs_h *handle,