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-rw-r--r--main.c413
1 files changed, 214 insertions, 199 deletions
diff --git a/main.c b/main.c
index fe31871..9e69828 100644
--- a/main.c
+++ b/main.c
@@ -1,5 +1,5 @@
/* Minilzip - A test program for the lzlib library
- Copyright (C) 2009, 2010, 2011, 2012 Antonio Diaz Diaz.
+ Copyright (C) 2009, 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
@@ -35,6 +35,21 @@
#include <unistd.h>
#include <utime.h>
#include <sys/stat.h>
+#if defined(__MSVCRT__)
+#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
+#define S_IWGRP 0
+#define S_IROTH 0
+#define S_IWOTH 0
+#endif
+#if defined(__OS2__)
+#include <io.h>
+#endif
#include "carg_parser.h"
#include "lzlib.h"
@@ -43,26 +58,21 @@
#error "Environments where CHAR_BIT != 8 are not supported."
#endif
-#ifndef LLONG_MAX
-#define LLONG_MAX 0x7FFFFFFFFFFFFFFFLL
+#ifndef max
+ #define max(x,y) ((x) >= (y) ? (x) : (y))
#endif
-#ifndef LLONG_MIN
-#define LLONG_MIN (-LLONG_MAX - 1LL)
-#endif
-#ifndef ULLONG_MAX
-#define ULLONG_MAX 0xFFFFFFFFFFFFFFFFULL
-#endif
-
#ifndef min
#define min(x,y) ((x) <= (y) ? (x) : (y))
#endif
-long long int llabs( long long int number );
+void cleanup_and_fail( const int retval );
+void show_error( const char * const msg, const int errcode, const bool help );
+void internal_error( const char * const msg );
const char * const Program_name = "Minilzip";
const char * const program_name = "minilzip";
-const char * const program_year = "2012";
+const char * const program_year = "2013";
const char * invocation_name = 0;
#ifdef O_BINARY
@@ -83,6 +93,8 @@ 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;
@@ -101,31 +113,10 @@ struct Pretty_print
bool first_post;
};
-static void Pp_init( struct Pretty_print * const pp,
- const char * const filenames[], const int num_filenames )
- {
- unsigned int stdin_name_len;
- int i;
- pp->name = 0;
- pp->stdin_name = "(stdin)";
- pp->longest_name = 0;
- pp->first_post = false;
- stdin_name_len = strlen( pp->stdin_name );
-
- for( i = 0; i < num_filenames; ++i )
- {
- const char * const s = filenames[i];
- const int len = ( !strcmp( s, "-" ) ? 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;
- }
-
-
static inline void Pp_set_name( struct Pretty_print * const pp,
const char * const filename )
{
- if( filename && filename[0] && strcmp( filename, "-" ) )
+ if( filename && filename[0] && strcmp( filename, "-" ) != 0 )
pp->name = filename;
else pp->name = pp->stdin_name;
pp->first_post = true;
@@ -201,56 +192,32 @@ static void show_version( void )
}
-void show_error( const char * const msg, const int errcode, const bool help )
- {
- if( verbosity >= 0 )
- {
- if( msg && msg[0] )
- {
- fprintf( stderr, "%s: %s", program_name, msg );
- if( errcode > 0 ) fprintf( stderr, ": %s", strerror( errcode ) );
- fprintf( stderr, "\n" );
- }
- if( help && invocation_name && invocation_name[0] )
- fprintf( stderr, "Try '%s --help' for more information.\n",
- invocation_name );
- }
- }
-
-
-void internal_error( const char * const msg )
- {
- if( verbosity >= 0 )
- fprintf( stderr, "%s: internal error: %s.\n", program_name, msg );
- exit( 3 );
- }
-
-
-static const char * format_num( long long num )
+void show_header( struct LZ_Decoder * const decoder )
{
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 = LZ_decompress_dictionary_size( decoder ), 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. ",
+ LZ_decompress_member_version( decoder ), 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 );
@@ -260,8 +227,7 @@ 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] )
{
@@ -286,7 +252,7 @@ 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; }
}
}
@@ -302,7 +268,7 @@ 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 >= LZ_min_dictionary_bits() &&
bits <= LZ_max_dictionary_bits() && *tail == 0 )
@@ -311,6 +277,20 @@ 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 )
@@ -354,22 +334,6 @@ static int open_instream( const char * const name, struct stat * const in_statsp
}
-void cleanup_and_fail( const int retval )
- {
- if( delete_output_on_interrupt )
- {
- delete_output_on_interrupt = false;
- if( verbosity >= 0 )
- fprintf( stderr, "%s: Deleting output file '%s', if it exists.\n",
- program_name, output_filename );
- if( outfd >= 0 ) { close( outfd ); outfd = -1; }
- if( remove( output_filename ) != 0 && errno != ENOENT )
- show_error( "WARNING: deletion of output file (apparently) failed.", 0, false );
- }
- exit( retval );
- }
-
-
/* assure at least a minimum size for buffer 'buf' */
static void * resize_buffer( void * buf, const int min_size )
{
@@ -394,20 +358,6 @@ 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 )
@@ -468,6 +418,22 @@ static bool check_tty( const int infd, const enum Mode program_mode )
}
+void cleanup_and_fail( const int retval )
+ {
+ if( delete_output_on_interrupt )
+ {
+ delete_output_on_interrupt = false;
+ if( verbosity >= 0 )
+ fprintf( stderr, "%s: Deleting output file '%s', if it exists.\n",
+ program_name, output_filename );
+ if( outfd >= 0 ) { close( outfd ); outfd = -1; }
+ if( remove( output_filename ) != 0 && errno != ENOENT )
+ show_error( "WARNING: deletion of output file (apparently) failed.", 0, false );
+ }
+ exit( retval );
+ }
+
+
/* Set permissions, owner and times. */
static void close_and_set_permissions( const struct stat * const in_statsp )
{
@@ -503,13 +469,13 @@ int readblock( const int fd, uint8_t * const buf, const int 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( n == 0 ) break; /* EOF */
else if( errno != EINTR && errno != EAGAIN ) break;
+ errno = 0;
}
- return ( rest > 0 ) ? size - rest : size;
+ return size - rest;
}
@@ -522,18 +488,18 @@ int writeblock( const int fd, const uint8_t * const buf, const int size )
errno = 0;
while( rest > 0 )
{
- errno = 0;
const int n = write( fd, buf + size - rest, rest );
if( n > 0 ) rest -= n;
else if( n < 0 && errno != EINTR && errno != EAGAIN ) break;
+ errno = 0;
}
- return ( rest > 0 ) ? size - rest : size;
+ return size - rest;
}
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" */
@@ -546,19 +512,20 @@ static bool next_filename( void )
}
-static int do_compress( struct LZ_Encoder * const encoder, const long long member_size,
- const long long volume_size, const int infd,
+static int do_compress( struct LZ_Encoder * const encoder,
+ const unsigned long long member_size,
+ const unsigned long long volume_size, const int infd,
struct Pretty_print * const pp,
const struct stat * const in_statsp )
{
- long long partial_volume_size = 0;
+ unsigned long long partial_volume_size = 0;
enum { buffer_size = 65536 };
uint8_t buffer[buffer_size];
if( verbosity >= 1 ) Pp_show_msg( pp, 0 );
while( true )
{
- int in_size = 0;
+ int in_size = 0, out_size;
while( LZ_compress_write_size( encoder ) > 0 )
{
const int size = min( LZ_compress_write_size( encoder ), buffer_size );
@@ -574,7 +541,7 @@ static int do_compress( struct LZ_Encoder * const encoder, const long long membe
/* else LZ_compress_sync_flush( encoder ); */
in_size += rd;
}
- const int out_size = LZ_compress_read( encoder, buffer, buffer_size );
+ out_size = LZ_compress_read( encoder, buffer, buffer_size );
if( out_size < 0 )
{
Pp_show_msg( pp, 0 );
@@ -595,22 +562,27 @@ static int do_compress( struct LZ_Encoder * const encoder, const long long membe
else if( in_size == 0 ) internal_error( "library error (LZ_compress_read)" );
if( LZ_compress_member_finished( encoder ) )
{
+ unsigned long long size;
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() )
+ if( volume_size > 0 )
{
- partial_volume_size = 0;
- if( delete_output_on_interrupt )
+ partial_volume_size += LZ_compress_member_position( encoder );
+ if( partial_volume_size >= volume_size - LZ_min_dictionary_size() )
{
- close_and_set_permissions( in_statsp );
- if( !next_filename() )
- { Pp_show_msg( pp, "Too many volume files" ); return 1; }
- if( !open_outstream( true ) ) return 1;
- 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" ); return 1; }
+ if( !open_outstream( true ) ) return 1;
+ delete_output_on_interrupt = true;
+ }
}
+ size = min( member_size, volume_size - partial_volume_size );
}
- const long long size =
- min( member_size, volume_size - partial_volume_size );
+ else
+ size = member_size;
if( LZ_compress_restart_member( encoder, size ) < 0 )
{
Pp_show_msg( pp, 0 );
@@ -624,13 +596,13 @@ static int do_compress( struct LZ_Encoder * const encoder, const long long membe
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 )
+ const unsigned long long in_size = LZ_compress_total_in_size( encoder );
+ const unsigned long long out_size = LZ_compress_total_out_size( encoder );
+ 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 ) ),
@@ -640,14 +612,16 @@ static int do_compress( struct LZ_Encoder * const encoder, const long long membe
}
-int compress( const long long member_size, const 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 )
+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 )
{
struct LZ_Encoder * const encoder =
LZ_compress_open( encoder_options->dictionary_size,
- encoder_options->match_len_limit,
- min( member_size, volume_size ) );
+ encoder_options->match_len_limit, ( volume_size > 0 ) ?
+ min( member_size, volume_size ) : member_size );
int retval;
if( !encoder || LZ_compress_errno( encoder ) != LZ_ok )
@@ -675,6 +649,7 @@ int do_decompress( struct LZ_Decoder * const decoder, const int infd,
for( first_member = true; ; )
{
int in_size = min( LZ_decompress_write_size( decoder ), buffer_size );
+ int out_size = 0;
if( in_size > 0 )
{
const int max_in_size = in_size;
@@ -688,7 +663,6 @@ int do_decompress( struct LZ_Decoder * const decoder, const int infd,
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 );
@@ -706,35 +680,34 @@ int do_decompress( struct LZ_Decoder * const decoder, const int infd,
}
}
else if( rd < 0 ) { out_size = rd; break; }
- if( verbosity >= 1 && LZ_decompress_member_finished( decoder ) == 1 )
+ if( 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_show_msg( pp, 0 );
- if( verbosity >= 2 )
- 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 )
- 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 )
- fprintf( stderr, "data CRC %08X, data size %9lld, member size %8lld. ",
- LZ_decompress_data_crc( decoder ),
- data_position, member_size );
- if( testing ) fprintf( stderr, "ok\n" );
- else fprintf( stderr, "done\n" );
+ if( verbosity >= 1 )
+ {
+ const unsigned long long data_position = LZ_decompress_data_position( decoder );
+ const unsigned long long member_size = LZ_decompress_member_position( decoder );
+ Pp_show_msg( pp, 0 );
+ if( verbosity >= 2 ) show_header( decoder );
+ if( verbosity >= 3 && data_position > 0 && member_size > 0 )
+ 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 )
+ fprintf( stderr, "data CRC %08X, data size %9llu, member size %8llu. ",
+ LZ_decompress_data_crc( decoder ),
+ data_position, member_size );
+ if( testing ) fprintf( stderr, "ok\n" );
+ else fprintf( stderr, "done\n" );
+ }
+ first_member = false; Pp_reset( pp );
}
- if( LZ_decompress_member_finished( decoder ) == 1 )
- { first_member = false; Pp_reset( pp ); }
if( rd <= 0 ) break;
}
- if( out_size < 0 )
+ if( out_size < 0 || ( first_member && out_size == 0 ) )
{
const enum LZ_Errno lz_errno = LZ_decompress_errno( decoder );
- if( lz_errno == LZ_header_error )
+ if( lz_errno == LZ_header_error || ( first_member && out_size == 0 ) )
{
if( !first_member ) break; /* trailing garbage */
Pp_show_msg( pp, "Error reading member header" );
@@ -745,18 +718,18 @@ int do_decompress( struct LZ_Decoder * const decoder, const int infd,
Pp_show_msg( pp, "Not enough memory. Find a machine with more memory" );
return 1;
}
- Pp_show_msg( pp, 0 );
- if( lz_errno == LZ_unexpected_eof )
+ if( verbosity >= 0 )
{
- if( verbosity >= 0 )
- fprintf( stderr, "File ends unexpectedly at pos %lld\n",
+ Pp_show_msg( pp, 0 );
+ if( lz_errno == LZ_unexpected_eof )
+ fprintf( stderr, "File ends unexpectedly at pos %llu\n",
LZ_decompress_total_in_size( decoder ) );
- return 2;
+ else
+ fprintf( stderr, "Decoder error at pos %llu: %s.\n",
+ LZ_decompress_total_in_size( decoder ),
+ LZ_strerror( LZ_decompress_errno( decoder ) ) );
}
- if( verbosity >= 0 )
- fprintf( stderr, "LZ_decompress_read error: %s.\n",
- LZ_strerror( LZ_decompress_errno( decoder ) ) );
- return 1;
+ return 2;
}
if( LZ_decompress_finished( decoder ) == 1 ) break;
if( in_size == 0 && out_size == 0 )
@@ -786,7 +759,7 @@ 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 );
}
@@ -800,6 +773,52 @@ static void set_signals( void )
}
+static void Pp_init( struct Pretty_print * const pp,
+ const char * const filenames[], const int num_filenames )
+ {
+ unsigned stdin_name_len;
+ int i;
+ pp->name = 0;
+ pp->stdin_name = "(stdin)";
+ pp->longest_name = 0;
+ pp->first_post = false;
+ stdin_name_len = strlen( pp->stdin_name );
+
+ for( i = 0; i < num_filenames; ++i )
+ {
+ const char * const s = filenames[i];
+ 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 show_error( const char * const msg, const int errcode, const bool help )
+ {
+ if( verbosity >= 0 )
+ {
+ if( msg && msg[0] )
+ {
+ fprintf( stderr, "%s: %s", program_name, msg );
+ if( errcode > 0 ) fprintf( stderr, ": %s", strerror( errcode ) );
+ fprintf( stderr, "\n" );
+ }
+ if( help )
+ fprintf( stderr, "Try '%s --help' for more information.\n",
+ invocation_name );
+ }
+ }
+
+
+void internal_error( const char * const msg )
+ {
+ if( verbosity >= 0 )
+ fprintf( stderr, "%s: internal error: %s.\n", program_name, msg );
+ exit( 3 );
+ }
+
+
int main( const int argc, const char * const argv[] )
{
/* Mapping from gzip/bzip2 style 1..9 compression modes
@@ -817,8 +836,8 @@ 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;
@@ -867,9 +886,10 @@ int main( const int argc, const char * const argv[] )
struct Arg_parser parser;
invocation_name = argv[0];
+
if( LZ_version()[0] != LZ_version_string[0] )
internal_error( "bad library version" );
- if( strcmp( PROGVERSION, LZ_version_string ) )
+ if( strcmp( PROGVERSION, LZ_version_string ) != 0 )
internal_error( "bad library version_string" );
if( !ap_init( &parser, argc, argv, options, 0 ) )
@@ -881,14 +901,14 @@ 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;
@@ -902,7 +922,7 @@ 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;
@@ -910,29 +930,24 @@ int main( const int argc, const char * const argv[] )
}
} /* end process options */
-#if defined(__OS2__)
- _fsetmode( stdin, "b" );
- _fsetmode( stdout, "b" );
+#if defined(__MSVCRT__) || defined(__OS2__)
+ setmode( STDIN_FILENO, O_BINARY );
+ setmode( STDOUT_FILENO, O_BINARY );
#endif
if( program_mode == m_test )
outfd = -1;
- 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();
@@ -947,7 +962,7 @@ 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;
@@ -958,7 +973,7 @@ 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,
@@ -968,7 +983,7 @@ 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;
}
@@ -988,12 +1003,12 @@ 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;
}