diff options
Diffstat (limited to 'package/utils/busybox/patches/000-busybox-1.25.0-gzip.patch')
| -rw-r--r-- | package/utils/busybox/patches/000-busybox-1.25.0-gzip.patch | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/package/utils/busybox/patches/000-busybox-1.25.0-gzip.patch b/package/utils/busybox/patches/000-busybox-1.25.0-gzip.patch deleted file mode 100644 index 7110f8d2c5..0000000000 --- a/package/utils/busybox/patches/000-busybox-1.25.0-gzip.patch +++ /dev/null @@ -1,30 +0,0 @@ -gzip: fix compression level bug. Closes 9131 -fix broken logic to get the gzip_level_config value from options -1 to --9. - -This fixes an off-by-one bug that caused gzip -9 output bigger files -than the other compression levels. - -It fixes so that compression level 1 to 3 are actually mapped to level 4 -as comments say. - -It also fixes that levels -4 to -9 is mapped to correct level and avoids -out-of-bounds access. - -Signed-off-by: Natanael Copa <ncopa@alpinelinux.org> -Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> - ---- a/archival/gzip.c -+++ b/archival/gzip.c -@@ -2220,10 +2220,7 @@ int gzip_main(int argc UNUSED_PARAM, cha - opt >>= ENABLE_GUNZIP ? 7 : 5; /* drop cfv[dt]qn bits */ - if (opt == 0) - opt = 1 << 6; /* default: 6 */ -- /* Map 1..3 to 4 */ -- if (opt & 0x7) -- opt |= 1 << 4; -- opt = ffs(opt >> 3); -+ opt = ffs(opt >> 4); /* Maps -1..-4 to [0], -5 to [1] ... -9 to [5] */ - max_chain_length = 1 << gzip_level_config[opt].chain_shift; - good_match = gzip_level_config[opt].good; - max_lazy_match = gzip_level_config[opt].lazy2 * 2; |