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authorDenys Vlasenko2012-03-06 16:27:48 +0100
committerDenys Vlasenko2012-03-06 16:27:48 +0100
commit8a6a2f9c9c214b94bd945acd97ac8b28c25e194e (patch)
tree08b9a2af482bb50a7e369c01f9e9083680543fd4 /archival/unzip.c
parent774bce8e8ba1e424c953e8f13aee8f0778c8a911 (diff)
downloadbusybox-8a6a2f9c9c214b94bd945acd97ac8b28c25e194e.zip
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update seamless uncompression code
This change makes "tar tf hello_world.txz" work without adding special-casing for ".txz" extension. It also removes ever-growing magic checking code in rpm2cpio and get_header_tar - we reuse one which lives in setup_unzip_on_fd. function old new delta unpack_gz_stream 7 566 +559 check_signature16 - 70 +70 setup_unzip_on_fd 99 142 +43 handle_SIGCHLD - 41 +41 unpack_bz2_stream 342 376 +34 unzip_main 2352 2385 +33 bbunpack 503 533 +30 open_transformer 74 102 +28 unpack_Z_stream 1278 1304 +26 unpack_gunzip 101 123 +22 init_transformer_aux_data - 18 +18 unpack_xz_stream 2388 2402 +14 open_zipped 131 141 +10 rpm_main 1358 1363 +5 get_header_tar_lzma 52 57 +5 get_header_tar_bz2 52 57 +5 unpack_lzma_stream 2698 2702 +4 hash_find 234 233 -1 get_header_tar 1759 1733 -26 get_header_tar_gz 92 57 -35 unpack_uncompress 51 12 -39 rpm2cpio_main 201 147 -54 unpack_unxz 67 12 -55 unpack_bz2_stream_prime 55 - -55 get_header_tar_Z 86 - -86 unpack_gz_stream_with_info 539 - -539 ------------------------------------------------------------------------------ (add/remove: 3/3 grow/shrink: 14/6 up/down: 947/-890) Total: 57 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'archival/unzip.c')
-rw-r--r--archival/unzip.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/archival/unzip.c b/archival/unzip.c
index 3a11f78..3c76cda 100644
--- a/archival/unzip.c
+++ b/archival/unzip.c
@@ -249,15 +249,17 @@ static void unzip_extract(zip_header_t *zip_header, int dst_fd)
bb_copyfd_exact_size(zip_fd, dst_fd, size);
} else {
/* Method 8 - inflate */
- inflate_unzip_result res;
- if (inflate_unzip(&res, zip_header->formatted.cmpsize, zip_fd, dst_fd) < 0)
+ transformer_aux_data_t aux;
+ init_transformer_aux_data(&aux);
+ aux.bytes_in = zip_header->formatted.cmpsize;
+ if (inflate_unzip(&aux, zip_fd, dst_fd) < 0)
bb_error_msg_and_die("inflate error");
/* Validate decompression - crc */
- if (zip_header->formatted.crc32 != (res.crc ^ 0xffffffffL)) {
+ if (zip_header->formatted.crc32 != (aux.crc32 ^ 0xffffffffL)) {
bb_error_msg_and_die("crc error");
}
/* Validate decompression - size */
- if (zip_header->formatted.ucmpsize != res.bytes_out) {
+ if (zip_header->formatted.ucmpsize != aux.bytes_out) {
/* Don't die. Who knows, maybe len calculation
* was botched somewhere. After all, crc matched! */
bb_error_msg("bad length");