diff options
Diffstat (limited to 'archival/libunarchive/get_header_tar_gz.c')
-rw-r--r-- | archival/libunarchive/get_header_tar_gz.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/archival/libunarchive/get_header_tar_gz.c b/archival/libunarchive/get_header_tar_gz.c new file mode 100644 index 000000000..41c02e16a --- /dev/null +++ b/archival/libunarchive/get_header_tar_gz.c @@ -0,0 +1,31 @@ +/* vi: set sw=4 ts=4: */ +/* + * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. + */ + +#include <stdlib.h> + +#include "libbb.h" +#include "unarchive.h" + +char get_header_tar_gz(archive_handle_t *archive_handle) +{ + unsigned char magic[2]; + + /* Can't lseek over pipes */ + archive_handle->seek = seek_by_read; + + xread(archive_handle->src_fd, &magic, 2); + if ((magic[0] != 0x1f) || (magic[1] != 0x8b)) { + bb_error_msg_and_die("invalid gzip magic"); + } + + check_header_gzip(archive_handle->src_fd); + + archive_handle->src_fd = open_transformer(archive_handle->src_fd, inflate_gunzip); + archive_handle->offset = 0; + while (get_header_tar(archive_handle) == EXIT_SUCCESS) /**/; + + /* Can only do one file at a time */ + return EXIT_FAILURE; +} |