| From upstream: https://busybox.net/downloads/fixes-1.25.0/ |
| |
| Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar> |
| |
| --- busybox-1.25.0/archival/gzip.c |
| +++ busybox-1.25.0-gzip/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; |
