diff options
Diffstat (limited to 'main.cc')
| -rw-r--r-- | main.cc | 35 |
1 files changed, 18 insertions, 17 deletions
@@ -18,7 +18,7 @@ Return values: 0 for a normal exit, 1 for environmental problems (file not found, invalid flags, I/O errors, etc), 2 to indicate a corrupt or invalid input file, 3 for an internal consistency error - (eg, bug) which caused lzip to panic. + (eg, bug) which caused minilzip to panic. */ #define _FILE_OFFSET_BITS 64 @@ -138,6 +138,7 @@ void show_help() throw() std::printf( " -c, --stdout send output to standard output\n" ); std::printf( " -d, --decompress decompress\n" ); std::printf( " -f, --force overwrite existing output files\n" ); + std::printf( " -F, --recompress force recompression of compressed files\n" ); std::printf( " -k, --keep keep (don't delete) input files\n" ); std::printf( " -m, --match-length=<n> set match length limit in bytes [36]\n" ); std::printf( " -o, --output=<file> if reading stdin, place the output into <file>\n" ); @@ -184,7 +185,7 @@ const char * format_num( long long num ) throw() } -long long getnum( const char * const ptr, const int bs = 0, +long long getnum( const char * const ptr, const long long llimit = LLONG_MIN + 1, const long long ulimit = LLONG_MAX ) throw() { @@ -205,9 +206,6 @@ long long getnum( const char * const ptr, const int bs = 0, switch( tail[0] ) { case ' ': break; - case 'b': if( bs > 0 ) { factor = bs; exponent = 1; } - else bad_multiplier = true; - break; case 'Y': exponent = 8; break; case 'Z': exponent = 7; break; case 'E': exponent = 6; break; @@ -249,7 +247,7 @@ int get_dict_size( const char * const arg ) throw() if( bits >= LZ_min_dictionary_bits() && bits <= LZ_max_dictionary_bits() && *tail == 0 ) return ( 1 << bits ); - return getnum( arg, 0, LZ_min_dictionary_size(), LZ_max_dictionary_size() ); + return getnum( arg, LZ_min_dictionary_size(), LZ_max_dictionary_size() ); } @@ -268,10 +266,10 @@ int extension_index( const std::string & name ) throw() int open_instream( const std::string & name, struct stat * const in_statsp, const Mode program_mode, const int eindex, - const bool force, const bool to_stdout ) throw() + const bool recompress, const bool to_stdout ) throw() { int infd = -1; - if( program_mode == m_compress && !force && eindex >= 0 ) + if( program_mode == m_compress && !recompress && eindex >= 0 ) { if( verbosity >= 0 ) std::fprintf( stderr, "%s: Input file `%s' already has `%s' suffix.\n", @@ -331,7 +329,7 @@ void set_d_outname( const std::string & name, const int i ) throw() } } output_filename = name; output_filename += ".out"; - if( verbosity >= 0 ) + if( verbosity >= 1 ) std::fprintf( stderr, "%s: Can't guess original name for `%s' -- using `%s'.\n", program_name, name.c_str(), output_filename.c_str() ); } @@ -382,7 +380,7 @@ void cleanup_and_fail( const int retval ) throw() std::fprintf( stderr, "%s: Deleting output file `%s', if it exists.\n", program_name, output_filename.c_str() ); if( outfd >= 0 ) { close( outfd ); outfd = -1; } - if( std::remove( output_filename.c_str() ) != 0 ) + if( std::remove( output_filename.c_str() ) != 0 && errno != ENOENT ) show_error( "WARNING: deletion of output file (apparently) failed." ); } std::exit( retval ); @@ -589,12 +587,12 @@ int do_decompress( LZ_Decoder * const decoder, const int infd, std::fprintf( stderr, "version %d, dictionary size %7sB. ", LZ_decompress_member_version( decoder ), format_num( LZ_decompress_dictionary_size( decoder ) ) ); - if( verbosity >= 4 && data_position > 0 && member_size > 0 ) + if( verbosity >= 3 && data_position > 0 && member_size > 0 ) std::fprintf( stderr, "%6.3f:1, %6.3f bits/byte, %5.2f%% saved. ", (double)data_position / member_size, ( 8.0 * member_size ) / data_position, 100.0 * ( 1.0 - ( (double)member_size / data_position ) ) ); - if( verbosity >= 3 ) + if( verbosity >= 4 ) std::fprintf( stderr, "data CRC %08X, data size %9lld, member size %8lld. ", LZ_decompress_data_crc( decoder ), data_position, member_size ); @@ -778,6 +776,7 @@ int main( const int argc, const char * const argv[] ) Mode program_mode = m_compress; bool force = false; bool keep_input_files = false; + bool recompress = false; bool to_stdout = false; std::string input_filename; std::string default_output_filename; @@ -807,6 +806,7 @@ int main( const int argc, const char * const argv[] ) { 'd', "decompress", Arg_parser::no }, { 'e', "extreme", Arg_parser::no }, { 'f', "force", Arg_parser::no }, + { 'F', "recompress", Arg_parser::no }, { 'h', "help", Arg_parser::no }, { 'k', "keep", Arg_parser::no }, { 'm', "match-length", Arg_parser::yes }, @@ -834,21 +834,22 @@ int main( const int argc, const char * const argv[] ) case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': encoder_options = option_mapping[code-'0']; break; - case 'b': member_size = getnum( arg, 0, 100000, LLONG_MAX / 2 ); break; + case 'b': member_size = getnum( arg, 100000, LLONG_MAX / 2 ); break; case 'c': to_stdout = true; break; case 'd': program_mode = m_decompress; break; case 'e': break; // ignored by now case 'f': force = true; break; + case 'F': recompress = true; break; case 'h': show_help(); return 0; case 'k': keep_input_files = true; break; case 'm': encoder_options.match_len_limit = - getnum( arg, 0, LZ_min_match_len_limit(), - LZ_max_match_len_limit() ); break; + getnum( arg, LZ_min_match_len_limit(), + LZ_max_match_len_limit() ); break; case 'o': default_output_filename = arg; break; case 'q': verbosity = -1; break; case 's': encoder_options.dictionary_size = get_dict_size( arg ); break; - case 'S': volume_size = getnum( arg, 0, 100000, LLONG_MAX / 2 ); break; + case 'S': volume_size = getnum( arg, 100000, LLONG_MAX / 2 ); break; case 't': program_mode = m_test; break; case 'v': if( verbosity < 4 ) ++verbosity; break; case 'V': show_version(); return 0; @@ -911,7 +912,7 @@ int main( const int argc, const char * const argv[] ) input_filename = filenames[i]; const int eindex = extension_index( input_filename ); infd = open_instream( input_filename, &in_stats, program_mode, - eindex, force, to_stdout ); + eindex, recompress, to_stdout ); if( infd < 0 ) { if( retval < 1 ) retval = 1; continue; } if( program_mode != m_test ) { |