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bzip2 decompression: simple code shrink

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function                                             old     new   delta
unpack_bz2_stream_prime                               60      55      -5
get_header_tar                                      1508    1496     -12

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2010-06-30 19:43:44 +02:00
parent fa5ea17b5f
commit 620e863ba2
2 changed files with 9 additions and 6 deletions
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6
archival/libunarchive/decompress_bunzip2.c
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@@ -692,9 +692,9 @@ unpack_bz2_stream(int src_fd, int dst_fd)
IF_DESKTOP(long long) int FAST_FUNC
unpack_bz2_stream_prime(int src_fd, int dst_fd)
{
unsigned char magic[2];
xread(src_fd, magic, 2);
if (magic[0] != 'B' || magic[1] != 'Z') {
uint16_t magic2;
xread(src_fd, &magic2, 2);
if (magic2 != BZIP2_MAGIC) {
bb_error_msg_and_die("invalid magic");
}
return unpack_bz2_stream(src_fd, dst_fd);