diff options
Diffstat (limited to 'release/src/router/busybox/archival/libunarchive/get_header_tar_gz.c')
| -rw-r--r-- | release/src/router/busybox/archival/libunarchive/get_header_tar_gz.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/release/src/router/busybox/archival/libunarchive/get_header_tar_gz.c b/release/src/router/busybox/archival/libunarchive/get_header_tar_gz.c new file mode 100644 index 00000000..7792432a --- /dev/null +++ b/release/src/router/busybox/archival/libunarchive/get_header_tar_gz.c @@ -0,0 +1,49 @@ +/* + * 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 + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Library General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +#include <stdlib.h> + +#include "libbb.h" +#include "unarchive.h" + +extern char get_header_tar_gz(archive_handle_t *archive_handle) +{ + unsigned char magic[2]; + + archive_xread_all(archive_handle, &magic, 2); + if ((magic[0] != 0x1f) || (magic[1] != 0x8b)) { + bb_error_msg_and_die("Invalid gzip magic"); + } + + check_header_gzip(archive_handle->src_fd); + + GZ_gzReadOpen(archive_handle->src_fd, 0, 0); + + archive_handle->read = read_gz; + archive_handle->seek = seek_by_char; + + archive_handle->offset = 0; + while (get_header_tar(archive_handle) == EXIT_SUCCESS); + + /* Cleanup */ + GZ_gzReadClose(); + + check_trailer_gzip(archive_handle->src_fd); + + /* Can only do one tar.bz2 per archive */ + return(EXIT_FAILURE); +} + |