From c14d39e83a7f55ab9b92e98673a281fd6565c32d Mon Sep 17 00:00:00 2001 From: Denis Vlasenko Date: Fri, 8 Jun 2007 13:05:39 +0000 Subject: rmp: add optional support for bz2 data. +50 bytes of code --- archival/rpm.c | 25 ++++++++++++++++++------- 1 file changed, 18 insertions(+), 7 deletions(-) (limited to 'archival/rpm.c') diff --git a/archival/rpm.c b/archival/rpm.c index 71ed32e41..674ee2640 100644 --- a/archival/rpm.c +++ b/archival/rpm.c @@ -187,10 +187,11 @@ int rpm_main(int argc, char **argv) static void extract_cpio_gz(int fd) { + USE_DESKTOP(long long) int (*xformer)(int src_fd, int dst_fd); archive_handle_t *archive_handle; unsigned char magic[2]; - /* Initialise */ + /* Initialize */ archive_handle = init_handle(); archive_handle->seek = seek_by_read; //archive_handle->action_header = header_list; @@ -201,16 +202,26 @@ static void extract_cpio_gz(int fd) archive_handle->offset = 0; xread(archive_handle->src_fd, &magic, 2); + xformer = unpack_gz_stream; if ((magic[0] != 0x1f) || (magic[1] != 0x8b)) { - bb_error_msg_and_die("invalid gzip magic"); - } - check_header_gzip_or_die(archive_handle->src_fd); - xchdir("/"); /* Install RPM's to root */ + if (ENABLE_FEATURE_RPM_BZ2 + && (magic[0] == 0x42) && (magic[1] == 0x5a)) { + xformer = unpack_bz2_stream; + /* We can do better, need modifying unpack_bz2_stream to not require + * first 2 bytes. Not very hard to do... I mean, TODO :) */ + xlseek(archive_handle->src_fd, -2, SEEK_CUR); + } else + bb_error_msg_and_die("no gzip" + USE_FEATURE_RPM_BZ2("/bzip") + " magic"); + } else + check_header_gzip_or_die(archive_handle->src_fd); - archive_handle->src_fd = open_transformer(archive_handle->src_fd, inflate_gunzip); + xchdir("/"); /* Install RPM's to root */ + archive_handle->src_fd = open_transformer(archive_handle->src_fd, xformer); archive_handle->offset = 0; while (get_header_cpio(archive_handle) == EXIT_SUCCESS) - /* loop */; + continue; } -- cgit v1.2.3