emo/busybox
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

xz compression detection: avoid the need to seek

Browse Source 
function                                             old     new   delta
unpack_unxz                                           12      67     +55
unpack_xz_stream                                    2357    2373     +16
xmalloc_read                                         197     199      +2
setup_unzip_on_fd                                    118      99     -19
rpm2cpio_main                                        222     203     -19
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 3/2 up/down: 73/-38)             Total: 35 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2010-07-01 05:12:28 +02:00
parent 620e863ba2
commit 45f66167fe
5 changed files with 30 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
archival/libunarchive/decompress_unxz.c
View File

@@ -56,9 +56,11 @@ unpack_xz_stream(int src_fd, int dst_fd)
if (!crc32_table)
crc32_table = crc32_filltable(NULL, /*endian:*/ 0);
membuf = xmalloc(2 * BUFSIZ);
memset(&iobuf, 0, sizeof(iobuf));
/* Preload XZ file signature */
membuf = (void*) strcpy(xmalloc(2 * BUFSIZ), HEADER_MAGIC);
iobuf.in = membuf;
iobuf.in_size = HEADER_MAGIC_SIZE;
iobuf.out = membuf + BUFSIZ;
iobuf.out_size = BUFSIZ;