diff options
Diffstat (limited to 'archival/bzip2.c')
| -rw-r--r-- | archival/bzip2.c | 37 |
1 files changed, 30 insertions, 7 deletions
diff --git a/archival/bzip2.c b/archival/bzip2.c index bb1610e..e9a69c4 100644 --- a/archival/bzip2.c +++ b/archival/bzip2.c @@ -120,6 +120,7 @@ USE_DESKTOP(long long) int bz_write_tail(bz_stream *strm, void *wbuf) return total; } +static uint8_t level; static USE_DESKTOP(long long) int compressStream(void) @@ -134,7 +135,7 @@ USE_DESKTOP(long long) int compressStream(void) iobuf = xmalloc(2 * IOBUF_SIZE); - BZ2_bzCompressInit(strm, 9 /*blockSize100k*/); + BZ2_bzCompressInit(strm, level); while (1) { count = full_read(STDIN_FILENO, rbuf, IOBUF_SIZE); @@ -166,17 +167,39 @@ int bzip2_main(int argc, char **argv) { unsigned opt; + /* standard bzip2 flags + * -d --decompress force decompression + * -z --compress force compression + * -k --keep keep (don't delete) input files + * -f --force overwrite existing output files + * -t --test test compressed file integrity + * -c --stdout output to standard out + * -q --quiet suppress noncritical error messages + * -v --verbose be verbose (a 2nd -v gives more) + * -s --small use less memory (at most 2500k) + * -1 .. -9 set block size to 100k .. 900k + * --fast alias for -1 + * --best alias for -9 + */ + /* Must match bbunzip's constants OPT_STDOUT, OPT_FORCE! */ - opt = getopt32(argv, "cfv" USE_BUNZIP2("d") "q123456789" ); + opt = getopt32(argv, "cfv" USE_BUNZIP2("d") "123456789qzs" ); #if ENABLE_BUNZIP2 /* bunzip2_main may not be visible... */ if (opt & 0x8) // -d return bunzip2_main(argc, argv); + opt >>= 4; +#else + opt >>= 3; #endif - option_mask32 &= 0x7; /* ignore -q, -0..9 */ - //if (opt & 0x1) // -c - //if (opt & 0x2) // -f - //if (opt & 0x4) // -v - argv += optind; + opt = (uint8_t)opt; /* isolate bits for -1..-8 */ + opt |= 0x100; /* if nothing else, assume -9 */ + level = 1; + while (!(opt & 1)) { + level++; + opt >>= 1; + } + argv += optind; + option_mask32 &= 0x7; /* ignore all except -cfv */ return bbunpack(argv, make_new_name_bzip2, compressStream); } |