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-rw-r--r--main.c60
1 files changed, 14 insertions, 46 deletions
diff --git a/main.c b/main.c
index 79a32bd..f24893a 100644
--- a/main.c
+++ b/main.c
@@ -128,6 +128,7 @@ static void show_help()
printf( " -c, --stdout send output to standard output\n" );
printf( " -d, --decompress decompress\n" );
printf( " -f, --force overwrite existing output files\n" );
+ printf( " -F, --recompress force recompression of compressed files\n" );
printf( " -k, --keep keep (don't delete) input files\n" );
printf( " -m, --match-length=<n> set match length limit in bytes [36]\n" );
printf( " -o, --output=<file> if reading stdin, place the output into <file>\n" );
@@ -244,10 +245,10 @@ static int get_dict_size( const char * const arg )
static int open_instream( const char * const name, struct stat * const in_statsp,
const enum Mode program_mode, const int eindex,
- const bool force, const bool to_stdout )
+ const bool recompress, const bool to_stdout )
{
int infd = -1;
- if( program_mode == m_compress && !force && eindex >= 0 )
+ if( program_mode == m_compress && !recompress && eindex >= 0 )
{
if( verbosity >= 0 )
fprintf( stderr, "%s: Input file `%s' already has `%s' suffix.\n",
@@ -327,7 +328,7 @@ static void set_d_outname( const char * const name, const int i )
output_filename = resize_buffer( output_filename, strlen( name ) + 4 + 1 );
strcpy( output_filename, name );
strcat( output_filename, ".out" );
- if( verbosity >= 0 )
+ if( verbosity >= 1 )
fprintf( stderr, "%s: Can't guess original name for `%s' -- using `%s'.\n",
program_name, name, output_filename );
}
@@ -378,7 +379,7 @@ void cleanup_and_fail( const int retval )
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 )
+ if( remove( output_filename ) != 0 && errno != ENOENT )
show_error( "WARNING: deletion of output file (apparently) failed.", 0, false );
}
exit( retval );
@@ -538,7 +539,7 @@ static int decompress( const int infd, struct Pretty_print * const pp,
{ Pp_show_msg( pp, "Invalid dictionary size in member header" );
retval = 2; break; }
- if( verbosity >= 1 )
+ if( verbosity >= 2 || ( verbosity == 1 && first_member ) )
{
Pp_show_msg( pp, 0 );
if( verbosity >= 2 )
@@ -564,11 +565,14 @@ static int decompress( const int infd, struct Pretty_print * const pp,
}
retval = 2; break;
}
- if( verbosity >= 1 )
+ if( verbosity >= 2 )
{ if( testing ) fprintf( stderr, "ok\n" );
else fprintf( stderr, "done\n" ); }
}
Rd_free( &rdec );
+ if( verbosity == 1 && retval == 0 )
+ { if( testing ) fprintf( stderr, "ok\n" );
+ else fprintf( stderr, "done\n" ); }
return retval;
}
@@ -654,45 +658,6 @@ void internal_error( const char * const msg )
}
-/* 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 )
- {
- int rest = size;
- while( true )
- {
- int n;
- errno = 0;
- if( rest <= 0 ) break;
- 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 )
- {
- int rest = size;
- while( true )
- {
- int n;
- errno = 0;
- if( rest <= 0 ) break;
- 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
@@ -724,6 +689,7 @@ int main( const int argc, const char * const argv[] )
bool filenames_given = false;
bool force = false;
bool keep_input_files = false;
+ bool recompress = false;
bool to_stdout = false;
struct Pretty_print pp;
@@ -744,6 +710,7 @@ int main( const int argc, const char * const argv[] )
{ 'd', "decompress", ap_no },
{ 'e', "extreme", ap_no },
{ 'f', "force", ap_no },
+ { 'F', "recompress", ap_no },
{ 'h', "help", ap_no },
{ 'k', "keep", ap_no },
{ 'm', "match-length", ap_yes },
@@ -781,6 +748,7 @@ int main( const int argc, const char * const argv[] )
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 =
@@ -871,7 +839,7 @@ int main( const int argc, const char * const argv[] )
const int eindex = extension_index( filenames[i] );
input_filename = filenames[i];
infd = open_instream( input_filename, &in_stats, program_mode,
- eindex, force, to_stdout );
+ eindex, recompress, to_stdout );
if( infd < 0 ) { if( retval < 1 ) retval = 1; continue; }
if( program_mode != m_test )
{