diff options
Diffstat (limited to '')
| -rw-r--r-- | main.c | 13 |
1 files changed, 7 insertions, 6 deletions
@@ -88,13 +88,11 @@ struct { const char * from; const char * to; } const known_extensions[] = { struct Lzma_options { - int dictionary_size; /* 4KiB..512MiB */ - int match_len_limit; /* 5..273 */ + int dictionary_size; /* 4 KiB .. 512 MiB */ + int match_len_limit; /* 5 .. 273 */ }; enum Mode { m_compress, m_decompress, m_test }; -const unsigned long long max_member_size = 0x1000000000000000ULL; -const unsigned long long max_volume_size = 0x7FFFFFFFFFFFFFFFULL; char * output_filename = 0; int outfd = -1; @@ -161,7 +159,7 @@ static void show_help( void ) " -m, --match-length=<bytes> set match length limit in bytes [36]\n" " -o, --output=<file> if reading stdin, place the output into <file>\n" " -q, --quiet suppress all messages\n" - " -s, --dictionary-size=<bytes> set dictionary size limit in bytes [8MiB]\n" + " -s, --dictionary-size=<bytes> set dictionary size limit in bytes [8 MiB]\n" " -S, --volume-size=<bytes> set volume size limit in bytes\n" " -t, --test test compressed file integrity\n" " -v, --verbose be verbose (a 2nd -v gives more)\n" @@ -175,7 +173,8 @@ static void show_help( void ) "The bidimensional parameter space of LZMA can't be mapped to a linear\n" "scale optimal for all files. If your files are large, very repetitive,\n" "etc, you may need to use the --match-length and --dictionary-size\n" - "options directly to achieve optimal performance.\n" + "options directly to achieve optimal performance. For example, -9m64\n" + "usually compresses executables more (and faster) than -9.\n" "\nExit status: 0 for a normal exit, 1 for environmental problems (file\n" "not found, invalid flags, I/O errors, etc), 2 to indicate a corrupt or\n" "invalid input file, 3 for an internal consistency error (eg, bug) which\n" @@ -839,6 +838,8 @@ int main( const int argc, const char * const argv[] ) { 3 << 23, 132 }, /* -8 */ { 1 << 25, 273 } }; /* -9 */ struct Lzma_options encoder_options = option_mapping[6]; /* default = "-6" */ + const unsigned long long max_member_size = 0x0100000000000000ULL; + const unsigned long long max_volume_size = 0x4000000000000000ULL; unsigned long long member_size = max_member_size; unsigned long long volume_size = 0; const char * input_filename = ""; |