Adding upstream version 1.3.upstream/1.3

Signed-off-by: Daniel Baumann <mail@daniel-baumann.ch>

1 files changed, 0 insertions, 966 deletions

diff --git a/main.cc b/main.cc
deleted file mode 100644
index 5c5d572..0000000
--- a/main.cc
+++ /dev/null
@@ -1,966 +0,0 @@
-/*  Minilzip - A test program for the lzlib library
-    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
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-/*
-    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 minilzip to panic.
-*/
-
-#define _FILE_OFFSET_BITS 64
-
-#include <algorithm>
-#include <cerrno>
-#include <climits>
-#include <csignal>
-#include <cstdio>
-#include <cstdlib>
-#include <cstring>
-#include <string>
-#include <vector>
-#include <fcntl.h>
-#include <stdint.h>
-#include <unistd.h>
-#include <utime.h>
-#include <sys/stat.h>
-
-#include "arg_parser.h"
-#include "lzlib.h"
-
-#if CHAR_BIT != 8
-#error "Environments where CHAR_BIT != 8 are not supported."
-#endif
-
-#ifndef LLONG_MAX
-#define LLONG_MAX  0x7FFFFFFFFFFFFFFFLL
-#endif
-#ifndef LLONG_MIN
-#define LLONG_MIN  (-LLONG_MAX - 1LL)
-#endif
-#ifndef ULLONG_MAX
-#define ULLONG_MAX 0xFFFFFFFFFFFFFFFFULL
-#endif
-
-void show_error( const char * const msg, const int errcode = 0, const bool help = false ) throw();
-void internal_error( const char * const msg );
-int readblock( const int fd, uint8_t * const buf, const int size ) throw();
-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;
-
-#ifdef O_BINARY
-const int o_binary = O_BINARY;
-#else
-const int o_binary = 0;
-#endif
-
-struct { const char * from; const char * to; } const known_extensions[] = {
-  { ".lz",  ""     },
-  { ".tlz", ".tar" },
-  { 0,      0      } };
-
-struct Lzma_options
-  {
-  int dictionary_size;		// 4KiB..512MiB
-  int match_len_limit;		// 5..273
-  };
-
-enum Mode { m_compress, m_decompress, m_test };
-
-std::string output_filename;
-int outfd = -1;
-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;
-  unsigned int longest_name;
-  std::string name_;
-  mutable bool first_post;
-
-public:
-  Pretty_print( const std::vector< std::string > & filenames )
-    : 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];
-      const unsigned int len = ( ( s == "-" ) ? stdin_name_len : s.size() );
-      if( len > longest_name ) longest_name = len;
-      }
-    if( longest_name == 0 ) longest_name = stdin_name_len;
-    }
-
-  void set_name( const std::string & filename )
-    {
-    if( filename.size() && filename != "-" ) name_ = filename;
-    else name_ = stdin_name;
-    first_post = true;
-    }
-
-  void reset() const throw() { if( name_.size() ) first_post = true; }
-  const char * name() const throw() { return name_.c_str(); }
-  void operator()( const char * const msg = 0 ) const throw();
-  };
-
-
-void show_help() throw()
-  {
-  std::printf( "%s - A test program for the lzlib library.\n", Program_name );
-  std::printf( "\nUsage: %s [options] [files]\n", invocation_name );
-  std::printf( "\nOptions:\n" );
-  std::printf( "  -h, --help                 display this help and exit\n" );
-  std::printf( "  -V, --version              output version information and exit\n" );
-  std::printf( "  -b, --member-size=<n>      set member size limit in bytes\n" );
-  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" );
-  std::printf( "  -q, --quiet                suppress all messages\n" );
-  std::printf( "  -s, --dictionary-size=<n>  set dictionary size limit in bytes [8MiB]\n" );
-  std::printf( "  -S, --volume-size=<n>      set volume size limit in bytes\n" );
-  std::printf( "  -t, --test                 test compressed file integrity\n" );
-  std::printf( "  -v, --verbose              be verbose (a 2nd -v gives more)\n" );
-  std::printf( "  -1 .. -9                   set compression level [default 6]\n" );
-  std::printf( "      --fast                 alias for -1\n" );
-  std::printf( "      --best                 alias for -9\n" );
-  std::printf( "If no file names are given, %s compresses or decompresses\n", program_name );
-  std::printf( "from standard input to standard output.\n" );
-  std::printf( "Numbers may be followed by a multiplier: k = kB = 10^3 = 1000,\n" );
-  std::printf( "Ki = KiB = 2^10 = 1024, M = 10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc...\n" );
-  std::printf( "\nReport bugs to lzip-bug@nongnu.org\n" );
-  std::printf( "Lzlib home page: http://www.nongnu.org/lzip/lzlib.html\n" );
-  }
-
-
-void show_version() throw()
-  {
-  std::printf( "%s %s\n", Program_name, PROGVERSION );
-  std::printf( "Copyright (C) %s Antonio Diaz Diaz.\n", program_year );
-  std::printf( "License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\n" );
-  std::printf( "This is free software: you are free to change and redistribute it.\n" );
-  std::printf( "There is NO WARRANTY, to the extent permitted by law.\n" );
-  }
-
-
-const char * format_num( long long num ) throw()
-  {
-  const char * const prefix[8] =
-    { "Ki", "Mi", "Gi", "Ti", "Pi", "Ei", "Zi", "Yi" };
-  enum { buf_size = 16, factor = 1024 };
-  static char buf[buf_size];
-  const char *p = "";
-
-  for( int i = 0; i < 8 && ( llabs( num ) > 9999 ||
-       ( llabs( num ) >= factor && num % factor == 0 ) ); ++i )
-    { num /= factor; p = prefix[i]; }
-  snprintf( buf, buf_size, "%lld %s", num, p );
-  return buf;
-  }
-
-
-long long getnum( const char * const ptr,
-                  const long long llimit = LLONG_MIN + 1,
-                  const long long ulimit = LLONG_MAX ) throw()
-  {
-  errno = 0;
-  char *tail;
-  long long result = strtoll( ptr, &tail, 0 );
-  if( tail == ptr )
-    {
-    show_error( "Bad or missing numerical argument.", 0, true );
-    std::exit( 1 );
-    }
-
-  if( !errno && tail[0] )
-    {
-    int factor = ( tail[1] == 'i' ) ? 1024 : 1000;
-    int exponent = 0;
-    bool bad_multiplier = false;
-    switch( tail[0] )
-      {
-      case ' ': break;
-      case 'Y': exponent = 8; break;
-      case 'Z': exponent = 7; break;
-      case 'E': exponent = 6; break;
-      case 'P': exponent = 5; break;
-      case 'T': exponent = 4; break;
-      case 'G': exponent = 3; break;
-      case 'M': exponent = 2; break;
-      case 'K': if( factor == 1024 ) exponent = 1; else bad_multiplier = true;
-                break;
-      case 'k': if( factor == 1000 ) exponent = 1; else bad_multiplier = true;
-                break;
-      default : bad_multiplier = true;
-      }
-    if( bad_multiplier )
-      {
-      show_error( "Bad multiplier in numerical argument.", 0, true );
-      std::exit( 1 );
-      }
-    for( int i = 0; i < exponent; ++i )
-      {
-      if( LLONG_MAX / factor >= llabs( result ) ) result *= factor;
-      else { errno = ERANGE; break; }
-      }
-    }
-  if( !errno && ( result < llimit || result > ulimit ) ) errno = ERANGE;
-  if( errno )
-    {
-    show_error( "Numerical argument out of limits." );
-    std::exit( 1 );
-    }
-  return result;
-  }
-
-
-int get_dict_size( const char * const arg ) throw()
-  {
-  char *tail;
-  int bits = std::strtol( arg, &tail, 0 );
-  if( bits >= LZ_min_dictionary_bits() &&
-      bits <= LZ_max_dictionary_bits() && *tail == 0 )
-    return ( 1 << bits );
-  return getnum( arg, LZ_min_dictionary_size(), LZ_max_dictionary_size() );
-  }
-
-
-int extension_index( const std::string & name ) throw()
-  {
-  for( int i = 0; known_extensions[i].from; ++i )
-    {
-    const std::string ext( known_extensions[i].from );
-    if( name.size() > ext.size() &&
-        name.compare( name.size() - ext.size(), ext.size(), ext ) == 0 )
-      return i;
-    }
-  return -1;
-  }
-
-
-int open_instream( const std::string & name, struct stat * const in_statsp,
-                   const Mode program_mode, const int eindex,
-                   const bool recompress, const bool to_stdout ) throw()
-  {
-  int infd = -1;
-  if( program_mode == m_compress && !recompress && eindex >= 0 )
-    {
-    if( verbosity >= 0 )
-      std::fprintf( stderr, "%s: Input file `%s' already has `%s' suffix.\n",
-                    program_name, name.c_str(),
-                    known_extensions[eindex].from );
-    }
-  else
-    {
-    infd = open( name.c_str(), O_RDONLY | o_binary );
-    if( infd < 0 )
-      {
-      if( verbosity >= 0 )
-        std::fprintf( stderr, "%s: Can't open input file `%s': %s.\n",
-                      program_name, name.c_str(), std::strerror( errno ) );
-      }
-    else
-      {
-      const int i = fstat( infd, in_statsp );
-      const mode_t & mode = in_statsp->st_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",
-                        program_name, name.c_str(),
-                        ( can_read && !to_stdout ) ?
-                        " and `--stdout' was not specified" : "" );
-        close( infd );
-        infd = -1;
-        }
-      }
-    }
-  return infd;
-  }
-
-
-void set_c_outname( const std::string & name, const bool multifile ) throw()
-  {
-  output_filename = name;
-  if( multifile ) output_filename += "00001";
-  output_filename += known_extensions[0].from;
-  }
-
-
-void set_d_outname( const std::string & name, const int i ) throw()
-  {
-  if( i >= 0 )
-    {
-    const std::string from( known_extensions[i].from );
-    if( name.size() > from.size() )
-      {
-      output_filename.assign( name, 0, name.size() - from.size() );
-      output_filename += known_extensions[i].to;
-      return;
-      }
-    }
-  output_filename = name; output_filename += ".out";
-  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() );
-  }
-
-
-bool open_outstream( const bool force ) throw()
-  {
-  int flags = O_CREAT | O_WRONLY | o_binary;
-  if( force ) flags |= O_TRUNC; else flags |= O_EXCL;
-
-  outfd = open( output_filename.c_str(), flags, outfd_mode );
-  if( outfd < 0 && verbosity >= 0 )
-    {
-    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 );
-  }
-
-
-bool check_tty( const int infd, const Mode program_mode ) throw()
-  {
-  if( program_mode == m_compress && outfd >= 0 && isatty( outfd ) )
-    {
-    show_error( "I won't write compressed data to a terminal.", 0, true );
-    return false;
-    }
-  if( ( program_mode == m_decompress || program_mode == m_test ) &&
-      isatty( infd ) )
-    {
-    show_error( "I won't read compressed data from a terminal.", 0, true );
-    return false;
-    }
-  return true;
-  }
-
-
-void cleanup_and_fail( const int retval ) throw()
-  {
-  if( delete_output_on_interrupt )
-    {
-    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() );
-    if( outfd >= 0 ) { close( outfd ); outfd = -1; }
-    if( std::remove( output_filename.c_str() ) != 0 && errno != ENOENT )
-      show_error( "WARNING: deletion of output file (apparently) failed." );
-    }
-  std::exit( retval );
-  }
-
-
-     // Set permissions, owner and times.
-void close_and_set_permissions( const struct stat * const in_statsp )
-  {
-  bool error = false;
-  if( in_statsp )
-    {
-    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;
-  else cleanup_and_fail( 1 );
-  delete_output_on_interrupt = false;
-  if( !in_statsp ) return;
-  if( !error )
-    {
-    struct utimbuf t;
-    t.actime = in_statsp->st_atime;
-    t.modtime = in_statsp->st_mtime;
-    if( utime( output_filename.c_str(), &t ) != 0 ) error = true;
-    }
-  if( error )
-    {
-    show_error( "Can't change output file attributes." );
-    cleanup_and_fail( 1 );
-    }
-  }
-
-
-bool next_filename()
-  {
-  const unsigned int len = std::strlen( known_extensions[0].from );
-  if( output_filename.size() >= len + 5 )		// "*00001.lz"
-    for( int i = output_filename.size() - len - 1, j = 0; j < 5; --i, ++j )
-      {
-      if( output_filename[i] < '9' ) { ++output_filename[i]; return true; }
-      else output_filename[i] = '0';
-      }
-  return false;
-  }
-
-
-int do_compress( LZ_Encoder * const encoder, const long long member_size,
-                 const long long volume_size, const int infd,
-                 const Pretty_print & pp, const struct stat * const in_statsp )
-  {
-  long long partial_volume_size = 0;
-  const int buffer_size = 65536;
-  uint8_t buffer[buffer_size];
-
-  if( verbosity >= 1 ) pp();
-  while( true )
-    {
-    int in_size = 0;
-    while( LZ_compress_write_size( encoder ) > 0 )
-      {
-      const int size = std::min( LZ_compress_write_size( encoder ),
-                                 buffer_size );
-      const int rd = readblock( infd, buffer, size );
-      if( rd != size && errno )
-        { 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 );
-    if( out_size < 0 )
-      {
-      pp();
-      if( verbosity >= 0 )
-        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; }
-      }
-    else if( in_size == 0 ) internal_error( "library error (LZ_compress_read)" );
-    if( LZ_compress_member_finished( encoder ) )
-      {
-      if( LZ_compress_finished( encoder ) == 1 ) break;
-      partial_volume_size += LZ_compress_member_position( encoder );
-      if( partial_volume_size >= volume_size - LZ_min_dictionary_size() )
-        {
-        partial_volume_size = 0;
-        if( delete_output_on_interrupt )
-          {
-          close_and_set_permissions( in_statsp );
-          if( !next_filename() )
-            { pp( "Too many volume files." ); return 1; }
-          if( !open_outstream( true ) ) return 1;
-          delete_output_on_interrupt = true;
-          }
-        }
-      const long long size =
-        std::min( member_size, volume_size - partial_volume_size );
-      if( LZ_compress_restart_member( encoder, size ) < 0 )
-        {
-        pp();
-        if( verbosity >= 0 )
-          std::fprintf( stderr, "%s: LZ_compress_restart_member error: %s.\n",
-                        program_name, LZ_strerror( LZ_compress_errno( encoder ) ) );
-        return 1;
-        }
-      }
-    }
-
-  if( verbosity >= 1 )
-    {
-    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" );
-    else
-      std::fprintf( stderr, "%6.3f:1, %6.3f bits/byte, "
-                            "%5.2f%% saved, %lld in, %lld out.\n",
-                    (double)in_size / out_size,
-                    ( 8.0 * out_size ) / in_size,
-                    100.0 * ( 1.0 - ( (double)out_size / in_size ) ),
-                    in_size, out_size );
-    }
-  return 0;
-  }
-
-
-int compress( const long long member_size, const long long volume_size,
-              const Lzma_options & encoder_options, const int infd,
-              const Pretty_print & pp, const struct stat * const in_statsp )
-  {
-  LZ_Encoder * const encoder =
-    LZ_compress_open( encoder_options.dictionary_size,
-                      encoder_options.match_len_limit,
-                      std::min( member_size, volume_size ) );
-  int retval;
-
-  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" );
-    else
-      internal_error( "invalid argument to encoder" );
-    retval = 1;
-    }
-  else retval = do_compress( encoder, member_size, volume_size,
-                             infd, pp, in_statsp );
-  LZ_compress_close( encoder );
-  return retval;
-  }
-
-
-int do_decompress( LZ_Decoder * const decoder, const int infd,
-                   const Pretty_print & pp, const bool testing )
-  {
-  const int buffer_size = 65536;
-  uint8_t buffer[buffer_size];
-
-  while( true )
-    {
-    int in_size = std::min( LZ_decompress_write_size( decoder ), buffer_size );
-    if( in_size > 0 )
-      {
-      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; }
-      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 );
-      }
-    int out_size = 0;
-    while( true )
-      {
-      const int rd = LZ_decompress_read( decoder, buffer, buffer_size );
-      if( rd > 0 )
-        {
-        out_size += rd;
-        if( outfd >= 0 )
-          {
-          const int wr = writeblock( outfd, buffer, rd );
-          if( wr != rd )
-            { 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 >= 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 >= 4 )
-          std::fprintf( stderr, "data CRC %08X, data size %9lld, member size %8lld.  ",
-                        LZ_decompress_data_crc( decoder ),
-                        data_position, member_size );
-        if( testing ) std::fprintf( stderr, "ok\n" );
-        else std::fprintf( stderr, "done\n" );
-        pp.reset();
-        }
-      if( rd <= 0 ) break;
-      }
-    if( out_size < 0 )
-      {
-      const LZ_Errno lz_errno = LZ_decompress_errno( decoder );
-      if( lz_errno == LZ_header_error )
-        {
-        if( LZ_decompress_total_out_size( decoder ) > 0 )
-          break;				// trailing garbage
-        pp( "Error reading member header" );
-        return 1;
-        }
-      if( lz_errno == LZ_mem_error )
-        {
-        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",
-                        LZ_decompress_total_in_size( decoder ) );
-        return 2;
-        }
-      if( verbosity >= 0 )
-        std::fprintf( stderr, "LZ_decompress_read error: %s.\n",
-                      LZ_strerror( LZ_decompress_errno( decoder ) ) );
-      return 1;
-      }
-    if( LZ_decompress_finished( decoder ) == 1 ) break;
-    if( in_size == 0 && out_size == 0 )
-      internal_error( "library error (LZ_decompress_read)" );
-    }
-  return 0;
-  }
-
-
-int decompress( const int infd, const Pretty_print & pp,
-                const bool testing )
-  {
-  LZ_Decoder * const decoder = LZ_decompress_open();
-  int retval;
-
-  if( !decoder || LZ_decompress_errno( decoder ) != LZ_ok )
-    {
-    pp( "Not enough memory. Find a machine with more memory" );
-    retval = 1;
-    }
-  else retval = do_decompress( decoder, infd, pp, testing );
-
-  LZ_decompress_close( decoder );
-  return retval;
-  }
-
-
-extern "C" void signal_handler( int ) throw()
-  {
-  show_error( "Control-C or similar caught, quitting." );
-  cleanup_and_fail( 1 );
-  }
-
-
-void set_signals() throw()
-  {
-  std::signal( SIGHUP, signal_handler );
-  std::signal( SIGINT, signal_handler );
-  std::signal( SIGTERM, signal_handler );
-  }
-
-} // end namespace
-
-
-void Pretty_print::operator()( const char * const msg ) const throw()
-  {
-  if( verbosity >= 0 )
-    {
-    if( first_post )
-      {
-      first_post = false;
-      std::fprintf( stderr, "  %s: ", name_.c_str() );
-      for( unsigned int i = 0; i < longest_name - name_.size(); ++i )
-        std::fprintf( stderr, " " );
-      if( !msg ) std::fflush( stderr );
-      }
-    if( msg ) std::fprintf( stderr, "%s.\n", msg );
-    }
-  }
-
-
-void show_error( const char * const msg, const int errcode, const bool help ) throw()
-  {
-  if( verbosity >= 0 )
-    {
-    if( msg && msg[0] )
-      {
-      std::fprintf( stderr, "%s: %s", program_name, msg );
-      if( errcode > 0 )
-        std::fprintf( stderr, ": %s", std::strerror( errcode ) );
-      std::fprintf( stderr, "\n" );
-      }
-    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 )
-  {
-  if( verbosity >= 0 )
-    std::fprintf( stderr, "%s: internal error: %s.\n", program_name, msg );
-  std::exit( 3 );
-  }
-
-
-// Returns the number of bytes really read.
-// If (returned value < size) and (errno == 0), means EOF was reached.
-//
-int readblock( const int fd, uint8_t * const buf, const int size ) throw()
-  {
-  int rest = size;
-  errno = 0;
-  while( rest > 0 )
-    {
-    errno = 0;
-    const int n = read( fd, buf + size - rest, rest );
-    if( n > 0 ) rest -= n;
-    else if( n == 0 ) break;
-    else if( errno != EINTR && errno != EAGAIN ) break;
-    }
-  return ( rest > 0 ) ? size - rest : size;
-  }
-
-
-// Returns the number of bytes really written.
-// If (returned value < size), it is always an error.
-//
-int writeblock( const int fd, const uint8_t * const buf, const int size ) throw()
-  {
-  int rest = size;
-  errno = 0;
-  while( rest > 0 )
-    {
-    errno = 0;
-    const int n = write( fd, buf + size - rest, rest );
-    if( n > 0 ) rest -= n;
-    else if( errno && errno != EINTR && errno != EAGAIN ) break;
-    }
-  return ( rest > 0 ) ? size - rest : size;
-  }
-
-
-int main( const int argc, const char * const argv[] )
-  {
-  // Mapping from gzip/bzip2 style 1..9 compression modes
-  // to the corresponding LZMA compression modes.
-  const Lzma_options option_mapping[] =
-    {
-    { 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;
-  long long volume_size = LLONG_MAX;
-  int infd = -1;
-  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;
-  std::vector< std::string > filenames;
-  invocation_name = argv[0];
-
-  if( LZ_version()[0] != LZ_version_string[0] )
-    internal_error( "bad library version" );
-
-  if( std::strcmp( PROGVERSION, LZ_version_string ) )
-    internal_error( "bad library version_string" );
-
-  const Arg_parser::Option options[] =
-    {
-    { '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  },
-    { '5',  0,                Arg_parser::no  },
-    { '6',  0,                Arg_parser::no  },
-    { '7',  0,                Arg_parser::no  },
-    { '8',  0,                Arg_parser::no  },
-    { '9', "best",            Arg_parser::no  },
-    { 'b', "member-size",     Arg_parser::yes },
-    { 'c', "stdout",          Arg_parser::no  },
-    { '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 },
-    { 'o', "output",          Arg_parser::yes },
-    { 'q', "quiet",           Arg_parser::no  },
-    { 's', "dictionary-size", Arg_parser::yes },
-    { 'S', "volume-size",     Arg_parser::yes },
-    { 't', "test",            Arg_parser::no  },
-    { 'v', "verbose",         Arg_parser::no  },
-    { 'V', "version",         Arg_parser::no  },
-    {  0 ,  0,                Arg_parser::no  } };
-
-  const Arg_parser parser( argc, argv, options );
-  if( parser.error().size() )				// bad option
-    { show_error( parser.error().c_str(), 0, true ); return 1; }
-
-  int argind = 0;
-  for( ; argind < parser.arguments(); ++argind )
-    {
-    const int code = parser.code( argind );
-    if( !code ) break;					// no more options
-    const char * const arg = parser.argument( argind ).c_str();
-    switch( code )
-      {
-      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, 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, 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, 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;
-      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 )
-    {
-    if( parser.argument( argind ) != "-" ) filenames_given = true;
-    filenames.push_back( parser.argument( argind ) );
-    }
-
-  if( filenames.empty() ) filenames.push_back("-");
-  if( !to_stdout && program_mode != m_test &&
-      ( filenames_given || default_output_filename.size() ) )
-    set_signals();
-
-  Pretty_print pp( filenames );
-  if( program_mode == m_test )
-    outfd = -1;
-
-  int retval = 0;
-  for( unsigned int i = 0; i < filenames.size(); ++i )
-    {
-    struct stat in_stats;
-    output_filename.clear();
-
-    if( !filenames[i].size() || filenames[i] == "-" )
-      {
-      input_filename.clear();
-      infd = STDIN_FILENO;
-      if( program_mode != m_test )
-        {
-        if( to_stdout || !default_output_filename.size() )
-          outfd = STDOUT_FILENO;
-        else
-          {
-          if( program_mode == m_compress )
-            set_c_outname( default_output_filename, volume_size != LLONG_MAX );
-          else output_filename = default_output_filename;
-          outfd_mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
-          if( !open_outstream( force ) )
-            {
-            if( outfd == -1 && retval < 1 ) retval = 1;
-            close( infd ); infd = -1;
-            continue;
-            }
-          }
-        }
-      }
-    else
-      {
-      input_filename = filenames[i];
-      const int eindex = extension_index( input_filename );
-      infd = open_instream( input_filename, &in_stats, program_mode,
-                            eindex, recompress, to_stdout );
-      if( infd < 0 ) { if( retval < 1 ) retval = 1; continue; }
-      if( program_mode != m_test )
-        {
-        if( to_stdout ) outfd = STDOUT_FILENO;
-        else
-          {
-          if( program_mode == m_compress )
-            set_c_outname( input_filename, volume_size != LLONG_MAX );
-          else set_d_outname( input_filename, eindex );
-          outfd_mode = S_IRUSR | S_IWUSR;
-          if( !open_outstream( force ) )
-            {
-            if( outfd == -1 && retval < 1 ) retval = 1;
-            close( infd ); infd = -1;
-            continue;
-            }
-          }
-        }
-      }
-
-    if( !check_tty( infd, program_mode ) ) return 1;
-
-    if( output_filename.size() && !to_stdout && program_mode != m_test )
-      delete_output_on_interrupt = true;
-    const struct stat * const in_statsp = input_filename.size() ? &in_stats : 0;
-    pp.set_name( input_filename );
-    int tmp = 0;
-    if( program_mode == m_compress )
-      tmp = compress( member_size, volume_size, encoder_options, infd,
-                      pp, in_statsp );
-    else
-      tmp = decompress( infd, pp, program_mode == m_test );
-    if( tmp > retval ) retval = tmp;
-    if( tmp && program_mode != m_test ) cleanup_and_fail( retval );
-
-    if( delete_output_on_interrupt )
-      close_and_set_permissions( in_statsp );
-    if( input_filename.size() )
-      {
-      close( infd ); infd = -1;
-      if( !keep_input_files && !to_stdout && program_mode != m_test )
-        std::remove( input_filename.c_str() );
-      }
-    }
-  if( outfd >= 0 && close( outfd ) != 0 )
-    {
-    show_error( "Can't close stdout", errno );
-    if( retval < 1 ) retval = 1;
-    }
-  return retval;
-  }