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author | Daniel Baumann <mail@daniel-baumann.ch> | 2015-11-07 13:41:03 +0000 |
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committer | Daniel Baumann <mail@daniel-baumann.ch> | 2015-11-07 13:41:03 +0000 |
commit | be26dc2b4ee2be043b42250cbcda337cedf635d8 (patch) | |
tree | 027e128c510f3b64af2741189c2ab578c7957682 /main.cc | |
parent | Adding upstream version 1.0. (diff) | |
download | lzlib-be26dc2b4ee2be043b42250cbcda337cedf635d8.tar.xz lzlib-be26dc2b4ee2be043b42250cbcda337cedf635d8.zip |
Adding upstream version 1.1.upstream/1.1
Signed-off-by: Daniel Baumann <mail@daniel-baumann.ch>
Diffstat (limited to '')
-rw-r--r-- | main.cc | 186 |
1 files changed, 94 insertions, 92 deletions
@@ -1,5 +1,5 @@ /* Minilzip - A test program for the lzlib library - Copyright (C) 2009, 2010 Antonio Diaz Diaz. + Copyright (C) 2009, 2010, 2011 Antonio Diaz Diaz. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -63,10 +63,10 @@ int writeblock( const int fd, const uint8_t * const buf, const int size ) throw( namespace { +const char * const Program_name = "Minilzip"; +const char * const program_name = "minilzip"; +const char * const program_year = "2011"; const char * invocation_name = 0; -const char * const Program_name = "Minilzip"; -const char * const program_name = "minilzip"; -const char * const program_year = "2010"; #ifdef O_BINARY const int o_binary = O_BINARY; @@ -85,27 +85,26 @@ struct Lzma_options int match_len_limit; // 5..273 }; -enum Mode { m_compress = 0, m_decompress, m_test }; +enum Mode { m_compress, m_decompress, m_test }; std::string output_filename; int outfd = -1; -mode_t outfd_mode = S_IRUSR | S_IWUSR; int verbosity = 0; +mode_t outfd_mode = S_IRUSR | S_IWUSR; bool delete_output_on_interrupt = false; class Pretty_print { const char * const stdin_name; - const unsigned int stdin_name_len; unsigned int longest_name; std::string name_; mutable bool first_post; public: Pretty_print( const std::vector< std::string > & filenames ) - : stdin_name( "(stdin)" ), stdin_name_len( std::strlen( stdin_name ) ), - longest_name( 0 ), first_post( false ) + : stdin_name( "(stdin)" ), longest_name( 0 ), first_post( false ) { + const unsigned int stdin_name_len = std::strlen( stdin_name ); for( unsigned int i = 0; i < filenames.size(); ++i ) { const std::string & s = filenames[i]; @@ -140,7 +139,7 @@ void show_help() throw() std::printf( " -d, --decompress decompress\n" ); std::printf( " -f, --force overwrite existing output 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 [80]\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" ); std::printf( " -q, --quiet suppress all messages\n" ); std::printf( " -s, --dictionary-size=<n> set dictionary size limit in bytes [8MiB]\n" ); @@ -169,26 +168,18 @@ void show_version() throw() } -const char * format_num( long long num, long long limit = 9999, - const int set_prefix = 0 ) throw() +const char * format_num( long long num ) throw() { - const char * const si_prefix[8] = - { "k", "M", "G", "T", "P", "E", "Z", "Y" }; - const char * const binary_prefix[8] = + const char * const prefix[8] = { "Ki", "Mi", "Gi", "Ti", "Pi", "Ei", "Zi", "Yi" }; - static bool si = false; - static char buf[16]; - - if( set_prefix ) si = ( set_prefix > 0 ); - const int factor = ( si ) ? 1000 : 1024; - const char * const *prefix = ( si ) ? si_prefix : binary_prefix; + enum { buf_size = 16, factor = 1024 }; + static char buf[buf_size]; const char *p = ""; - limit = std::max( 999LL, std::min( 999999LL, limit ) ); - for( int i = 0; i < 8 && ( llabs( num ) > limit || + for( int i = 0; i < 8 && ( llabs( num ) > 9999 || ( llabs( num ) >= factor && num % factor == 0 ) ); ++i ) { num /= factor; p = prefix[i]; } - snprintf( buf, sizeof buf, "%lld %s", num, p ); + snprintf( buf, buf_size, "%lld %s", num, p ); return buf; } @@ -202,7 +193,7 @@ long long getnum( const char * const ptr, const int bs = 0, long long result = strtoll( ptr, &tail, 0 ); if( tail == ptr ) { - show_error( "bad or missing numerical argument", 0, true ); + show_error( "Bad or missing numerical argument.", 0, true ); std::exit( 1 ); } @@ -232,7 +223,7 @@ long long getnum( const char * const ptr, const int bs = 0, } if( bad_multiplier ) { - show_error( "bad multiplier in numerical argument", 0, true ); + show_error( "Bad multiplier in numerical argument.", 0, true ); std::exit( 1 ); } for( int i = 0; i < exponent; ++i ) @@ -244,7 +235,7 @@ long long getnum( const char * const ptr, const int bs = 0, if( !errno && ( result < llimit || result > ulimit ) ) errno = ERANGE; if( errno ) { - show_error( "numerical argument out of limits" ); + show_error( "Numerical argument out of limits." ); std::exit( 1 ); } return result; @@ -283,7 +274,7 @@ int open_instream( const std::string & name, struct stat * const in_statsp, if( program_mode == m_compress && !force && eindex >= 0 ) { if( verbosity >= 0 ) - std::fprintf( stderr, "%s: input file `%s' already has `%s' suffix.\n", + std::fprintf( stderr, "%s: Input file `%s' already has `%s' suffix.\n", program_name, name.c_str(), known_extensions[eindex].from ); } @@ -300,14 +291,16 @@ int open_instream( const std::string & name, struct stat * const in_statsp, { const int i = fstat( infd, in_statsp ); const mode_t & mode = in_statsp->st_mode; - if( i < 0 || !( S_ISREG( mode ) || ( to_stdout && - ( S_ISFIFO( mode ) || S_ISSOCK( mode ) || - S_ISBLK( mode ) || S_ISCHR( mode ) ) ) ) ) + const bool can_read = ( i == 0 && + ( S_ISBLK( mode ) || S_ISCHR( mode ) || + S_ISFIFO( mode ) || S_ISSOCK( mode ) ) ); + if( i != 0 || ( !S_ISREG( mode ) && ( !to_stdout || !can_read ) ) ) { if( verbosity >= 0 ) - std::fprintf( stderr, "%s: input file `%s' is not a regular file%s.\n", + std::fprintf( stderr, "%s: Input file `%s' is not a regular file%s.\n", program_name, name.c_str(), - to_stdout ? "" : " and `--stdout' was not specified" ); + ( can_read && !to_stdout ) ? + " and `--stdout' was not specified" : "" ); close( infd ); infd = -1; } @@ -339,7 +332,7 @@ void set_d_outname( const std::string & name, const int i ) throw() } output_filename = name; output_filename += ".out"; if( verbosity >= 0 ) - std::fprintf( stderr, "%s: can't guess original name for `%s' -- using `%s'.\n", + std::fprintf( stderr, "%s: Can't guess original name for `%s' -- using `%s'.\n", program_name, name.c_str(), output_filename.c_str() ); } @@ -350,18 +343,14 @@ bool open_outstream( const bool force ) throw() if( force ) flags |= O_TRUNC; else flags |= O_EXCL; outfd = open( output_filename.c_str(), flags, outfd_mode ); - if( outfd < 0 ) + if( outfd < 0 && verbosity >= 0 ) { - if( errno == EEXIST ) outfd = -2; else outfd = -1; - if( verbosity >= 0 ) - { - if( outfd == -2 ) - std::fprintf( stderr, "%s: Output file %s already exists, skipping.\n", - program_name, output_filename.c_str() ); - else - std::fprintf( stderr, "%s: Can't create output file `%s': %s.\n", - program_name, output_filename.c_str(), std::strerror( errno ) ); - } + if( errno == EEXIST ) + std::fprintf( stderr, "%s: Output file `%s' already exists, skipping.\n", + program_name, output_filename.c_str() ); + else + std::fprintf( stderr, "%s: Can't create output file `%s': %s.\n", + program_name, output_filename.c_str(), std::strerror( errno ) ); } return ( outfd >= 0 ); } @@ -369,7 +358,7 @@ bool open_outstream( const bool force ) throw() bool check_tty( const int infd, const Mode program_mode ) throw() { - if( program_mode == m_compress && isatty( outfd ) ) + if( program_mode == m_compress && outfd >= 0 && isatty( outfd ) ) { show_error( "I won't write compressed data to a terminal.", 0, true ); return false; @@ -391,7 +380,7 @@ void cleanup_and_fail( const int retval ) throw() delete_output_on_interrupt = false; if( verbosity >= 0 ) std::fprintf( stderr, "%s: Deleting output file `%s', if it exists.\n", - program_name, output_filename.c_str() ); + program_name, output_filename.c_str() ); if( outfd >= 0 ) { close( outfd ); outfd = -1; } if( std::remove( output_filename.c_str() ) != 0 ) show_error( "WARNING: deletion of output file (apparently) failed." ); @@ -406,9 +395,10 @@ void close_and_set_permissions( const struct stat * const in_statsp ) bool error = false; if( in_statsp ) { - if( fchmod( outfd, in_statsp->st_mode ) != 0 || - ( fchown( outfd, in_statsp->st_uid, in_statsp->st_gid ) != 0 && - errno != EPERM ) ) error = true; + if( ( fchown( outfd, in_statsp->st_uid, in_statsp->st_gid ) != 0 && + errno != EPERM ) || + fchmod( outfd, in_statsp->st_mode ) != 0 ) + error = true; // fchown will in many cases return with EPERM, which can be safely ignored. } if( close( outfd ) == 0 ) outfd = -1; @@ -424,7 +414,7 @@ void close_and_set_permissions( const struct stat * const in_statsp ) } if( error ) { - show_error( "I can't change output file attributes." ); + show_error( "Can't change output file attributes." ); cleanup_and_fail( 1 ); } } @@ -461,10 +451,11 @@ int do_compress( LZ_Encoder * const encoder, const long long member_size, buffer_size ); const int rd = readblock( infd, buffer, size ); if( rd != size && errno ) - { pp(); show_error( "read error", errno ); return 1; } + { pp(); show_error( "Read error", errno ); return 1; } if( rd > 0 && rd != LZ_compress_write( encoder, buffer, rd ) ) internal_error( "library error (LZ_compress_write)" ); if( rd < size ) LZ_compress_finish( encoder ); +// else LZ_compress_sync_flush( encoder ); in_size += rd; } const int out_size = LZ_compress_read( encoder, buffer, buffer_size ); @@ -472,15 +463,15 @@ int do_compress( LZ_Encoder * const encoder, const long long member_size, { pp(); if( verbosity >= 0 ) - std::fprintf( stderr, "LZ_compress_read error: %s.\n", - LZ_strerror( LZ_compress_errno( encoder ) ) ); + std::fprintf( stderr, "%s: LZ_compress_read error: %s.\n", + program_name, LZ_strerror( LZ_compress_errno( encoder ) ) ); return 1; } else if( out_size > 0 ) { const int wr = writeblock( outfd, buffer, out_size ); if( wr != out_size ) - { pp(); show_error( "write error", errno ); return 1; } + { pp(); show_error( "Write error", errno ); return 1; } } else if( in_size == 0 ) internal_error( "library error (LZ_compress_read)" ); if( LZ_compress_member_finished( encoder ) ) @@ -494,7 +485,7 @@ int do_compress( LZ_Encoder * const encoder, const long long member_size, { close_and_set_permissions( in_statsp ); if( !next_filename() ) - { pp(); show_error( "too many volume files" ); return 1; } + { pp( "Too many volume files." ); return 1; } if( !open_outstream( true ) ) return 1; delete_output_on_interrupt = true; } @@ -505,8 +496,8 @@ int do_compress( LZ_Encoder * const encoder, const long long member_size, { pp(); if( verbosity >= 0 ) - std::fprintf( stderr, "LZ_compress_restart_member error: %s.\n", - LZ_strerror( LZ_compress_errno( encoder ) ) ); + std::fprintf( stderr, "%s: LZ_compress_restart_member error: %s.\n", + program_name, LZ_strerror( LZ_compress_errno( encoder ) ) ); return 1; } } @@ -517,7 +508,7 @@ int do_compress( LZ_Encoder * const encoder, const long long member_size, const long long in_size = LZ_compress_total_in_size( encoder ); const long long out_size = LZ_compress_total_out_size( encoder ); if( in_size <= 0 || out_size <= 0 ) - std::fprintf( stderr, "no data compressed.\n" ); + std::fprintf( stderr, "No data compressed.\n" ); else std::fprintf( stderr, "%6.3f:1, %6.3f bits/byte, " "%5.2f%% saved, %lld in, %lld out.\n", @@ -543,7 +534,7 @@ int compress( const long long member_size, const long long volume_size, if( !encoder || LZ_compress_errno( encoder ) != LZ_ok ) { if( !encoder || LZ_compress_errno( encoder ) == LZ_mem_error ) - pp( "not enough memory. Try a smaller dictionary size" ); + pp( "Not enough memory. Try a smaller dictionary size" ); else internal_error( "invalid argument to encoder" ); retval = 1; @@ -569,7 +560,7 @@ int do_decompress( LZ_Decoder * const decoder, const int infd, const int max_in_size = in_size; in_size = readblock( infd, buffer, max_in_size ); if( in_size != max_in_size && errno ) - { pp(); show_error( "read error", errno ); return 1; } + { pp(); show_error( "Read error", errno ); return 1; } if( in_size > 0 && in_size != LZ_decompress_write( decoder, buffer, in_size ) ) internal_error( "library error (LZ_decompress_write)" ); if( in_size < max_in_size ) LZ_decompress_finish( decoder ); @@ -585,22 +576,28 @@ int do_decompress( LZ_Decoder * const decoder, const int infd, { const int wr = writeblock( outfd, buffer, rd ); if( wr != rd ) - { pp(); show_error( "write error", errno ); return 1; } + { pp(); show_error( "Write error", errno ); return 1; } } } else if( rd < 0 ) { out_size = rd; break; } if( verbosity >= 1 && LZ_decompress_member_finished( decoder ) == 1 ) { + const long long data_position = LZ_decompress_data_position( decoder ); + const long long member_size = LZ_decompress_member_position( decoder ); pp(); if( verbosity >= 2 ) 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 ) + 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 ) - std::fprintf( stderr, "data crc %08X, data size %9lld, member size %8lld. ", + std::fprintf( stderr, "data CRC %08X, data size %9lld, member size %8lld. ", LZ_decompress_data_crc( decoder ), - LZ_decompress_data_position( decoder ), - LZ_decompress_member_position( decoder ) ); + data_position, member_size ); if( testing ) std::fprintf( stderr, "ok\n" ); else std::fprintf( stderr, "done\n" ); pp.reset(); @@ -614,19 +611,19 @@ int do_decompress( LZ_Decoder * const decoder, const int infd, { if( LZ_decompress_total_out_size( decoder ) > 0 ) break; // trailing garbage - pp( "error reading member header" ); + pp( "Error reading member header" ); return 1; } if( lz_errno == LZ_mem_error ) { - pp( "not enough memory. Find a machine with more memory" ); + pp( "Not enough memory. Find a machine with more memory" ); return 1; } pp(); if( lz_errno == LZ_unexpected_eof ) { if( verbosity >= 0 ) - std::fprintf( stderr, "file ends unexpectedly at pos %lld\n", + std::fprintf( stderr, "File ends unexpectedly at pos %lld\n", LZ_decompress_total_in_size( decoder ) ); return 2; } @@ -651,7 +648,7 @@ int decompress( const int infd, const Pretty_print & pp, if( !decoder || LZ_decompress_errno( decoder ) != LZ_ok ) { - pp( "not enough memory. Find a machine with more memory" ); + pp( "Not enough memory. Find a machine with more memory" ); retval = 1; } else retval = do_decompress( decoder, infd, pp, testing ); @@ -699,22 +696,24 @@ void show_error( const char * const msg, const int errcode, const bool help ) th { if( verbosity >= 0 ) { - if( msg && msg[0] != 0 ) + if( msg && msg[0] ) { std::fprintf( stderr, "%s: %s", program_name, msg ); - if( errcode > 0 ) std::fprintf( stderr, ": %s", std::strerror( errcode ) ); + if( errcode > 0 ) + std::fprintf( stderr, ": %s", std::strerror( errcode ) ); std::fprintf( stderr, "\n" ); } - if( help && invocation_name && invocation_name[0] != 0 ) - std::fprintf( stderr, "Try `%s --help' for more information.\n", invocation_name ); + if( help && invocation_name && invocation_name[0] ) + std::fprintf( stderr, "Try `%s --help' for more information.\n", + invocation_name ); } } void internal_error( const char * const msg ) { - std::string s( "internal error: " ); s += msg; - show_error( s.c_str() ); + if( verbosity >= 0 ) + std::fprintf( stderr, "%s: internal error: %s.\n", program_name, msg ); std::exit( 3 ); } @@ -762,15 +761,15 @@ int main( const int argc, const char * const argv[] ) // to the corresponding LZMA compression modes. const Lzma_options option_mapping[] = { - { 1 << 16, 5 }, // -0 - { 1 << 20, 10 }, // -1 - { 3 << 19, 12 }, // -2 - { 1 << 21, 17 }, // -3 - { 3 << 20, 26 }, // -4 - { 1 << 22, 44 }, // -5 - { 1 << 23, 80 }, // -6 - { 1 << 24, 108 }, // -7 - { 3 << 23, 163 }, // -8 + { 1 << 20, 5 }, // -0 + { 1 << 20, 5 }, // -1 + { 3 << 19, 6 }, // -2 + { 1 << 21, 8 }, // -3 + { 3 << 20, 12 }, // -4 + { 1 << 22, 20 }, // -5 + { 1 << 23, 36 }, // -6 + { 1 << 24, 68 }, // -7 + { 3 << 23, 132 }, // -8 { 1 << 25, 273 } }; // -9 Lzma_options encoder_options = option_mapping[6]; // default = "-6" long long member_size = LLONG_MAX; @@ -793,8 +792,8 @@ int main( const int argc, const char * const argv[] ) const Arg_parser::Option options[] = { - { '0', 0, Arg_parser::no }, - { '1', "fast", Arg_parser::no }, + { '0', "fast", Arg_parser::no }, + { '1', 0, Arg_parser::no }, { '2', 0, Arg_parser::no }, { '3', 0, Arg_parser::no }, { '4', 0, Arg_parser::no }, @@ -820,7 +819,7 @@ int main( const int argc, const char * const argv[] ) { 'V', "version", Arg_parser::no }, { 0 , 0, Arg_parser::no } }; - Arg_parser parser( argc, argv, options ); + const Arg_parser parser( argc, argv, options ); if( parser.error().size() ) // bad option { show_error( parser.error().c_str(), 0, true ); return 1; } @@ -838,7 +837,7 @@ int main( const int argc, const char * const argv[] ) case 'b': member_size = getnum( arg, 0, 100000, LLONG_MAX / 2 ); break; case 'c': to_stdout = true; break; case 'd': program_mode = m_decompress; break; - case 'e': break; + case 'e': break; // ignored by now case 'f': force = true; break; case 'h': show_help(); return 0; case 'k': keep_input_files = true; break; @@ -855,7 +854,12 @@ int main( const int argc, const char * const argv[] ) case 'V': show_version(); return 0; default : internal_error( "uncaught option" ); } - } + } // end process options + +#if defined(__OS2__) + _fsetmode( stdin, "b" ); + _fsetmode( stdout, "b" ); +#endif bool filenames_given = false; for( ; argind < parser.arguments(); ++argind ) @@ -954,9 +958,7 @@ int main( const int argc, const char * const argv[] ) } if( outfd >= 0 && close( outfd ) != 0 ) { - if( verbosity >= 0 ) - std::fprintf( stderr, "%s: Can't close stdout: %s.\n", - program_name, std::strerror( errno ) ); + show_error( "Can't close stdout", errno ); if( retval < 1 ) retval = 1; } return retval; |