Merging upstream version 1.4.

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

1 files changed, 111 insertions, 144 deletions

diff --git a/main.c b/main.c
index 91215a9..aea4e18 100644
--- a/main.c
+++ b/main.c
@@ -1,5 +1,5 @@
 /*  Clzip - Data compressor based on the LZMA algorithm
-    Copyright (C) 2010, 2011, 2012 Antonio Diaz Diaz.
+    Copyright (C) 2010, 2011, 2012, 2013 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
@@ -39,6 +39,7 @@
 #include <io.h>
 #define fchmod(x,y) 0
 #define fchown(x,y,z) 0
+#define strtoull strtoul
 #define SIGHUP SIGTERM
 #define S_ISSOCK(x) 0
 #define S_IRGRP 0
@@ -59,22 +60,10 @@
 #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
-
-long long int llabs( long long int number );
-
 
 const char * const Program_name = "Clzip";
 const char * const program_name = "clzip";
-const char * const program_year = "2012";
+const char * const program_year = "2013";
 const char * invocation_name = 0;
 
 #ifdef O_BINARY
@@ -95,6 +84,8 @@ struct Lzma_options
   };
 
 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;
@@ -105,21 +96,7 @@ mode_t outfd_mode = S_IRUSR | S_IWUSR;
 bool delete_output_on_interrupt = false;
 
 
-/* assure at least a minimum size for buffer 'buf' */
-static void * resize_buffer( void * buf, const int min_size )
-  {
-  if( buf ) buf = realloc( buf, min_size );
-  else buf = malloc( min_size );
-  if( !buf )
-    {
-    show_error( "Not enough memory.", 0, false );
-    cleanup_and_fail( 1 );
-    }
-  return buf;
-  }
-
-
-static void show_help()
+static void show_help( void )
   {
   printf( "%s - Data compressor based on the LZMA algorithm.\n", Program_name );
   printf( "\nUsage: %s [options] [files]\n", invocation_name );
@@ -155,7 +132,7 @@ static void show_help()
   }
 
 
-static void show_version()
+static void show_version( void )
   {
   printf( "%s %s\n", Program_name, PROGVERSION );
   printf( "Copyright (C) %s Antonio Diaz Diaz.\n", program_year );
@@ -165,31 +142,32 @@ static void show_version()
   }
 
 
-static const char * format_num( long long num )
+void show_header( const File_header header )
   {
   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 = "";
+  enum { factor = 1024 };
+  const char * p = "";
+  const char * np = "  ";
+  unsigned num = Fh_get_dictionary_size( header ), i;
   bool exact = ( num % factor == 0 );
-  int i;
 
-  for( i = 0; i < 8 && ( llabs( num ) > 9999 ||
-                         ( exact && llabs( num ) >= factor ) ); ++i )
-    { num /= factor; if( num % factor != 0 ) exact = false; p = prefix[i]; }
-  snprintf( buf, buf_size, "%lld %s", num, p );
-  return buf;
+  for( i = 0; i < 8 && ( num > 9999 || ( exact && num >= factor ) ); ++i )
+    { num /= factor; if( num % factor != 0 ) exact = false;
+      p = prefix[i]; np = ""; }
+  fprintf( stderr, "version %d, dictionary size %s%4u %sB.  ",
+           Fh_version( header ), np, num, p );
   }
 
 
-static long long getnum( const char * const ptr,
-                         const long long llimit, const long long ulimit )
+static unsigned long long getnum( const char * const ptr,
+                                  const unsigned long long llimit,
+                                  const unsigned long long ulimit )
   {
-  long long result;
-  char *tail;
+  unsigned long long result;
+  char * tail;
   errno = 0;
-  result = strtoll( ptr, &tail, 0 );
+  result = strtoull( ptr, &tail, 0 );
   if( tail == ptr )
     {
     show_error( "Bad or missing numerical argument.", 0, true );
@@ -199,8 +177,7 @@ static long long getnum( const char * const ptr,
   if( !errno && tail[0] )
     {
     int factor = ( tail[1] == 'i' ) ? 1024 : 1000;
-    int exponent = 0;
-    int i;
+    int exponent = 0, i;
     bool bad_multiplier = false;
     switch( tail[0] )
       {
@@ -225,7 +202,7 @@ static long long getnum( const char * const ptr,
       }
     for( i = 0; i < exponent; ++i )
       {
-      if( LLONG_MAX / factor >= llabs( result ) ) result *= factor;
+      if( ulimit / factor >= result ) result *= factor;
       else { errno = ERANGE; break; }
       }
     }
@@ -241,7 +218,7 @@ static long long getnum( const char * const ptr,
 
 static int get_dict_size( const char * const arg )
   {
-  char *tail;
+  char * tail;
   int bits = strtol( arg, &tail, 0 );
   if( bits >= min_dictionary_bits &&
       bits <= max_dictionary_bits && *tail == 0 )
@@ -250,6 +227,20 @@ static int get_dict_size( const char * const arg )
   }
 
 
+static int extension_index( const char * const name )
+  {
+  int i;
+  for( i = 0; known_extensions[i].from; ++i )
+    {
+    const char * const ext = known_extensions[i].from;
+    if( strlen( name ) > strlen( ext ) &&
+        strncmp( name + strlen( name ) - strlen( ext ), ext, strlen( ext ) ) == 0 )
+      return i;
+    }
+  return -1;
+  }
+
+
 static int open_instream( const char * const name, struct stat * const in_statsp,
                           const enum Mode program_mode, const int eindex,
                           const bool recompress, const bool to_stdout )
@@ -293,6 +284,20 @@ static int open_instream( const char * const name, struct stat * const in_statsp
   }
 
 
+/* assure at least a minimum size for buffer 'buf' */
+static void * resize_buffer( void * buf, const int min_size )
+  {
+  if( buf ) buf = realloc( buf, min_size );
+  else buf = malloc( min_size );
+  if( !buf )
+    {
+    show_error( "Not enough memory.", 0, false );
+    cleanup_and_fail( 1 );
+    }
+  return buf;
+  }
+
+
 static void set_c_outname( const char * const name, const bool multifile )
   {
   output_filename = resize_buffer( output_filename, strlen( name ) + 5 +
@@ -303,20 +308,6 @@ static void set_c_outname( const char * const name, const bool multifile )
   }
 
 
-static int extension_index( const char * const name )
-  {
-  int i;
-  for( i = 0; known_extensions[i].from; ++i )
-    {
-    const char * const ext = known_extensions[i].from;
-    if( strlen( name ) > strlen( ext ) &&
-        strncmp( name + strlen( name ) - strlen( ext ), ext, strlen( ext ) ) == 0 )
-      return i;
-    }
-  return -1;
-  }
-
-
 static void set_d_outname( const char * const name, const int i )
   {
   if( i >= 0 )
@@ -419,9 +410,9 @@ static void close_and_set_permissions( const struct stat * const in_statsp )
   }
 
 
-static bool next_filename()
+static bool next_filename( void )
   {
-  const unsigned int len = strlen( known_extensions[0].from );
+  const unsigned len = strlen( known_extensions[0].from );
   int i, j;
 
   if( strlen( output_filename ) >= len + 5 )		/* "*00001.lz" */
@@ -434,18 +425,19 @@ static bool next_filename()
   }
 
 
-static int compress( const long long member_size, const long long volume_size,
+static int compress( const unsigned long long member_size,
+                     const unsigned long long volume_size,
                      const struct Lzma_options * const encoder_options,
                      const int infd, struct Pretty_print * const pp,
                      const struct stat * const in_statsp )
   {
-  long long in_size = 0, out_size = 0, partial_volume_size = 0;
+  unsigned long long in_size = 0, out_size = 0, partial_volume_size = 0;
   int retval = 0;
-  File_header header;
   struct Matchfinder matchfinder;
+  File_header header;
+  Fh_set_magic( header );
 
   if( verbosity >= 1 ) Pp_show_msg( pp, 0 );
-  Fh_set_magic( header );
   if( !Fh_set_dictionary_size( header, encoder_options->dictionary_size ) ||
       encoder_options->match_len_limit < min_match_len_limit ||
       encoder_options->match_len_limit > max_match_len )
@@ -459,11 +451,11 @@ static int compress( const long long member_size, const long long volume_size,
     }
   Fh_set_dictionary_size( header, matchfinder.dictionary_size );
 
-  while( true )		/* encode one member per iteration */
+  while( true )			/* encode one member per iteration */
     {
     struct LZ_encoder encoder;
-    const long long size =
-      min( member_size, volume_size - partial_volume_size );
+    const unsigned long long size = ( ( volume_size > 0 ) ?
+      min( member_size, volume_size - partial_volume_size ) : member_size );
     if( !LZe_init( &encoder, &matchfinder, header, outfd ) )
       {
       show_error( "Not enough memory. Try a smaller dictionary size.", 0, false );
@@ -473,19 +465,22 @@ static int compress( const long long member_size, const long long volume_size,
       { Pp_show_msg( pp, "Encoder error" ); retval = 1; break; }
     in_size += Mf_data_position( &matchfinder );
     out_size += Re_member_position( &encoder.range_encoder );
-    partial_volume_size += Re_member_position( &encoder.range_encoder );
     LZe_free( &encoder );
     if( Mf_finished( &matchfinder ) ) break;
-    if( partial_volume_size >= volume_size - min_dictionary_size )
+    if( volume_size > 0 )
       {
-      partial_volume_size = 0;
-      if( delete_output_on_interrupt )
+      partial_volume_size += Re_member_position( &encoder.range_encoder );
+      if( partial_volume_size >= volume_size - min_dictionary_size )
         {
-        close_and_set_permissions( in_statsp );
-        if( !next_filename() )
-          { Pp_show_msg( pp, "Too many volume files" ); retval = 1; break; }
-        if( !open_outstream( true ) ) { retval = 1; break; }
-        delete_output_on_interrupt = true;
+        partial_volume_size = 0;
+        if( delete_output_on_interrupt )
+          {
+          close_and_set_permissions( in_statsp );
+          if( !next_filename() )
+            { Pp_show_msg( pp, "Too many volume files" ); retval = 1; break; }
+          if( !open_outstream( true ) ) { retval = 1; break; }
+          delete_output_on_interrupt = true;
+          }
         }
       }
     Mf_reset( &matchfinder );
@@ -493,11 +488,11 @@ static int compress( const long long member_size, const long long volume_size,
 
   if( retval == 0 && verbosity >= 1 )
     {
-    if( in_size <= 0 || out_size <= 0 )
+    if( in_size == 0 || out_size == 0 )
       fprintf( stderr, " no data compressed.\n" );
     else
       fprintf( stderr, "%6.3f:1, %6.3f bits/byte, "
-                       "%5.2f%% saved, %lld in, %lld out.\n",
+                       "%5.2f%% saved, %llu in, %llu out.\n",
                (double)in_size / out_size,
                ( 8.0 * out_size ) / in_size,
                100.0 * ( 1.0 - ( (double)out_size / in_size ) ),
@@ -511,9 +506,9 @@ static int compress( const long long member_size, const long long volume_size,
 static int decompress( const int infd, struct Pretty_print * const pp,
                        const bool testing )
   {
-  long long partial_file_pos = 0;
+  unsigned long long partial_file_pos = 0;
   struct Range_decoder rdec;
-  int retval = 0, result;
+  int retval = 0;
   bool first_member;
   if( !Rd_init( &rdec, infd ) )
     {
@@ -521,13 +516,14 @@ static int decompress( const int infd, struct Pretty_print * const pp,
     cleanup_and_fail( 1 );
     }
 
-  for( first_member = true; ; first_member = false, Pp_reset( pp ) )
+  for( first_member = true; ; first_member = false )
     {
+    int result;
     File_header header;
     struct LZ_decoder decoder;
     Rd_reset_member_position( &rdec );
     Rd_read_data( &rdec, header, Fh_size );
-    if( Rd_finished( &rdec ) )		/* End Of File */
+    if( Rd_finished( &rdec ) )			/* End Of File */
       {
       if( first_member )
         { Pp_show_msg( pp, "Error reading member header" ); retval = 1; }
@@ -553,13 +549,7 @@ static int decompress( const int infd, struct Pretty_print * const pp,
         retval = 2; break; }
 
     if( verbosity >= 2 || ( verbosity == 1 && first_member ) )
-      {
-      Pp_show_msg( pp, 0 );
-      if( verbosity >= 2 )
-        fprintf( stderr, "version %d, dictionary size %7sB.  ",
-                 Fh_version( header ),
-                 format_num( Fh_get_dictionary_size( header ) ) );
-      }
+      { Pp_show_msg( pp, 0 ); if( verbosity >= 2 ) show_header( header ); }
 
     if( !LZd_init( &decoder, header, &rdec, outfd ) )
       {
@@ -575,16 +565,16 @@ static int decompress( const int infd, struct Pretty_print * const pp,
         {
         Pp_show_msg( pp, 0 );
         if( result == 2 )
-          fprintf( stderr, "File ends unexpectedly at pos %lld\n",
+          fprintf( stderr, "File ends unexpectedly at pos %llu\n",
                    partial_file_pos );
         else
-          fprintf( stderr, "Decoder error at pos %lld\n", partial_file_pos );
+          fprintf( stderr, "Decoder error at pos %llu\n", partial_file_pos );
         }
       retval = 2; break;
       }
     if( verbosity >= 2 )
       { if( testing ) fprintf( stderr, "ok\n" );
-        else fprintf( stderr, "done\n" ); }
+        else fprintf( stderr, "done\n" ); Pp_reset( pp ); }
     }
   Rd_free( &rdec );
   if( verbosity == 1 && retval == 0 )
@@ -596,13 +586,13 @@ static int decompress( const int infd, struct Pretty_print * const pp,
 
 void signal_handler( int sig )
   {
-  sig = 0;			/* keep compiler happy */
+  if( sig ) {}				/* keep compiler happy */
   show_error( "Control-C or similar caught, quitting.", 0, false );
   cleanup_and_fail( 1 );
   }
 
 
-static void set_signals()
+static void set_signals( void )
   {
   signal( SIGHUP, signal_handler );
   signal( SIGINT, signal_handler );
@@ -613,7 +603,7 @@ static void set_signals()
 void Pp_init( struct Pretty_print * const pp, const char * const filenames[],
               const int num_filenames, const int v )
   {
-  unsigned int stdin_name_len;
+  unsigned stdin_name_len;
   int i;
   pp->name = 0;
   pp->stdin_name = "(stdin)";
@@ -625,31 +615,13 @@ void Pp_init( struct Pretty_print * const pp, const char * const filenames[],
   for( i = 0; i < num_filenames; ++i )
     {
     const char * const s = filenames[i];
-    const int len = ( !strcmp( s, "-" ) ? stdin_name_len : strlen( s ) );
+    const int len = ( (strcmp( s, "-" ) == 0) ? stdin_name_len : strlen( s ) );
     if( len > pp->longest_name ) pp->longest_name = len;
     }
   if( pp->longest_name == 0 ) pp->longest_name = stdin_name_len;
   }
 
 
-void Pp_show_msg( struct Pretty_print * const pp, const char * const msg )
-  {
-  if( verbosity >= 0 )
-    {
-    if( pp->first_post )
-      {
-      int i, len;
-      pp->first_post = false;
-      fprintf( stderr, "  %s: ", pp->name );
-      len = pp->longest_name - strlen( pp->name );
-      for( i = 0; i < len; ++i ) fprintf( stderr, " " );
-      if( !msg ) fflush( stderr );
-      }
-    if( msg ) fprintf( stderr, "%s.\n", msg );
-    }
-  }
-
-
 void show_error( const char * const msg, const int errcode, const bool help )
   {
   if( verbosity >= 0 )
@@ -660,7 +632,7 @@ void show_error( const char * const msg, const int errcode, const bool help )
       if( errcode > 0 ) fprintf( stderr, ": %s", strerror( errcode ) );
       fprintf( stderr, "\n" );
       }
-    if( help && invocation_name && invocation_name[0] )
+    if( help )
       fprintf( stderr, "Try '%s --help' for more information.\n",
                invocation_name );
     }
@@ -692,8 +664,8 @@ 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" */
-  long long member_size = LLONG_MAX;
-  long long volume_size = LLONG_MAX;
+  unsigned long long member_size = max_member_size;
+  unsigned long long volume_size = 0;
   const char * input_filename = "";
   const char * default_output_filename = "";
   const char ** filenames = 0;
@@ -753,14 +725,14 @@ int main( const int argc, const char * const argv[] )
     {
     const int code = ap_code( &parser, argind );
     const char * const arg = ap_argument( &parser, argind );
-    if( !code ) break;				/* no more options */
+    if( !code ) break;					/* no more options */
     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 'b': member_size = getnum( arg, 100000, max_member_size ); break;
       case 'c': to_stdout = true; break;
       case 'd': program_mode = m_decompress; break;
       case 'f': force = true; break;
@@ -773,7 +745,7 @@ int main( const int argc, const char * const argv[] )
       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 'S': volume_size = getnum( arg, 100000, max_volume_size ); break;
       case 't': program_mode = m_test; break;
       case 'v': if( verbosity < 4 ) ++verbosity; break;
       case 'V': show_version(); return 0;
@@ -782,8 +754,8 @@ int main( const int argc, const char * const argv[] )
     } /* end process options */
 
 #if defined(__MSVCRT__) || defined(__OS2__)
-  _fsetmode( stdin, "b" );
-  _fsetmode( stdout, "b" );
+  setmode( STDIN_FILENO, O_BINARY );
+  setmode( STDOUT_FILENO, O_BINARY );
 #endif
 
   if( program_mode == m_test )
@@ -794,21 +766,16 @@ int main( const int argc, const char * const argv[] )
     Prob_prices_init();
     }
 
-  for( ; argind < ap_arguments( &parser ); ++argind )
-    {
-    if( strcmp( ap_argument( &parser, argind ), "-" ) )
-      filenames_given = true;
-    ++num_filenames;
-    filenames = resize_buffer( filenames, num_filenames * sizeof (char *) );
-    filenames[num_filenames-1] = ap_argument( &parser, argind );
-    }
+  num_filenames = max( 1, ap_arguments( &parser ) - argind );
+  filenames = resize_buffer( filenames, num_filenames * sizeof filenames[0] );
+  filenames[0] = "-";
 
-  if( num_filenames == 0 )
+  for( i = 0; argind + i < ap_arguments( &parser ); ++i )
     {
-    ++num_filenames;
-    filenames = resize_buffer( filenames, sizeof (char *) );
-    filenames[num_filenames-1] = "-";
+    filenames[i] = ap_argument( &parser, argind + i );
+    if( strcmp( filenames[i], "-" ) != 0 ) filenames_given = true;
     }
+
   if( !to_stdout && program_mode != m_test &&
       ( filenames_given || default_output_filename[0] ) )
     set_signals();
@@ -823,7 +790,7 @@ int main( const int argc, const char * const argv[] )
     const struct stat * in_statsp;
     output_filename[0] = 0;
 
-    if( !filenames[i][0] || !strcmp( filenames[i], "-" ) )
+    if( !filenames[i][0] || strcmp( filenames[i], "-" ) == 0 )
       {
       input_filename = "";
       infd = STDIN_FILENO;
@@ -834,7 +801,7 @@ int main( const int argc, const char * const argv[] )
         else
           {
           if( program_mode == m_compress )
-            set_c_outname( default_output_filename, volume_size != LLONG_MAX );
+            set_c_outname( default_output_filename, volume_size > 0 );
           else
             {
             output_filename = resize_buffer( output_filename,
@@ -844,7 +811,7 @@ int main( const int argc, const char * const argv[] )
           outfd_mode = all_rw;
           if( !open_outstream( force ) )
             {
-            if( outfd == -1 && retval < 1 ) retval = 1;
+            if( retval < 1 ) retval = 1;
             close( infd ); infd = -1;
             continue;
             }
@@ -864,12 +831,12 @@ int main( const int argc, const char * const argv[] )
         else
           {
           if( program_mode == m_compress )
-            set_c_outname( input_filename, volume_size != LLONG_MAX );
+            set_c_outname( input_filename, volume_size > 0 );
           else set_d_outname( input_filename, eindex );
           outfd_mode = usr_rw;
           if( !open_outstream( force ) )
             {
-            if( outfd == -1 && retval < 1 ) retval = 1;
+            if( retval < 1 ) retval = 1;
             close( infd ); infd = -1;
             continue;
             }