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-rw-r--r--main.c40
1 files changed, 20 insertions, 20 deletions
diff --git a/main.c b/main.c
index 70bcb37..3a53f94 100644
--- a/main.c
+++ b/main.c
@@ -88,14 +88,14 @@ static void show_help( void )
"small size makes it well suited for embedded devices or software\n"
"installers that need to decompress files but do not need compression\n"
"capabilities. Lunzip is fully compatible with lzip-1.4 or newer.\n"
- "\nIf the size of the output buffer is specified with the '--buffer-size'\n"
- "option, lunzip uses the decompressed file as dictionary for distances\n"
- "beyond the buffer size and is able to decompress any file using as\n"
+ "\nLunzip provides a 'low memory' mode able to decompress any file using as\n"
"little memory as 50 kB, irrespective of the dictionary size used to\n"
- "compress the file. Of course, the smaller the output buffer size used in\n"
- "relation to the dictionary size, the more accesses to disk are needed\n"
- "and the slower the decompression is. This 'low memory' mode only works\n"
- "when decompressing to a regular file.\n" );
+ "compress the file. To activate it, specify the size of the output buffer\n"
+ "with the '--buffer-size' option and lunzip will use the decompressed\n"
+ "file as dictionary for distances beyond the buffer size. Of course, the\n"
+ "smaller the output buffer size used in relation to the dictionary size,\n"
+ "the more accesses to disk are needed and the slower the decompression is.\n"
+ "This 'low memory' mode only works when decompressing to a regular file.\n" );
printf( "\nUsage: %s [options] [files]\n", invocation_name );
printf( "\nOptions:\n"
" -h, --help display this help and exit\n"
@@ -111,6 +111,8 @@ static void show_help( void )
" -v, --verbose be verbose (a 2nd -v gives more)\n"
"If no file names are given, lunzip decompresses from standard input to\n"
"standard output.\n"
+ "Numbers may be followed by a multiplier: k = kB = 10^3 = 1000,\n"
+ "Ki = KiB = 2^10 = 1024, M = 10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc...\n"
"\nExit status: 0 for a normal exit, 1 for environmental problems (file\n"
"not found, invalid flags, I/O errors, etc), 2 to indicate a corrupt or\n"
"invalid input file, 3 for an internal consistency error (eg, bug) which\n"
@@ -122,7 +124,7 @@ static void show_help( void )
static void show_version( void )
{
- printf( "%s %s\n", Program_name, PROGVERSION );
+ printf( "%s %s\n", program_name, PROGVERSION );
printf( "Copyright (C) %s Antonio Diaz Diaz.\n", program_year );
printf( "License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>\n"
"This is free software: you are free to change and redistribute it.\n"
@@ -232,8 +234,7 @@ static int open_instream( const char * const name, struct stat * const in_statsp
const bool no_ofile )
{
int infd;
- do infd = open( name, O_RDONLY | O_BINARY );
- while( infd < 0 && errno == EINTR );
+ infd = open( name, O_RDONLY | O_BINARY );
if( infd < 0 )
{
if( verbosity >= 0 )
@@ -305,8 +306,7 @@ static bool open_outstream( const bool force )
int flags = O_APPEND | O_CREAT | O_RDWR | O_BINARY;
if( force ) flags |= O_TRUNC; else flags |= O_EXCL;
- do outfd = open( output_filename, flags, outfd_mode );
- while( outfd < 0 && errno == EINTR );
+ outfd = open( output_filename, flags, outfd_mode );
if( outfd < 0 && verbosity >= 0 )
{
if( errno == EEXIST )
@@ -390,14 +390,14 @@ static int decompress( const int buffer_size, const int infd,
if( Rd_finished( &rdec ) ) /* End Of File */
{
if( first_member )
- { Pp_show_msg( pp, "File ends unexpectedly at member header" );
+ { Pp_show_msg( pp, "File ends unexpectedly at member header." );
retval = 2; }
break;
}
if( !Fh_verify_magic( header ) )
{
if( !first_member ) break; /* trailing garbage */
- Pp_show_msg( pp, "Bad magic number (file not in lzip format)" );
+ Pp_show_msg( pp, "Bad magic number (file not in lzip format)." );
retval = 2; break;
}
if( !Fh_verify_version( header ) )
@@ -411,7 +411,7 @@ static int decompress( const int buffer_size, const int infd,
dictionary_size = Fh_get_dictionary_size( header );
if( dictionary_size < min_dictionary_size ||
dictionary_size > max_dictionary_size )
- { Pp_show_msg( pp, "Invalid dictionary size in member header" );
+ { Pp_show_msg( pp, "Invalid dictionary size in member header." );
retval = 2; break; }
if( verbosity >= 2 || ( verbosity == 1 && first_member ) )
@@ -432,10 +432,10 @@ static int decompress( const int buffer_size, const int infd,
{
Pp_show_msg( pp, 0 );
if( result == 2 )
- fprintf( stderr, "File ends unexpectedly at pos %llu\n",
+ fprintf( stderr, "File ends unexpectedly at pos %llu.\n",
partial_file_pos );
else
- fprintf( stderr, "Decoder error at pos %llu\n", partial_file_pos );
+ fprintf( stderr, "Decoder error at pos %llu.\n", partial_file_pos );
}
retval = 2; break;
}
@@ -472,7 +472,7 @@ void show_error( const char * const msg, const int errcode, const bool help )
if( msg && msg[0] )
{
fprintf( stderr, "%s: %s", program_name, msg );
- if( errcode > 0 ) fprintf( stderr, ": %s", strerror( errcode ) );
+ if( errcode > 0 ) fprintf( stderr, ": %s.", strerror( errcode ) );
fprintf( stderr, "\n" );
}
if( help )
@@ -485,7 +485,7 @@ void show_error( const char * const msg, const int errcode, const bool help )
void internal_error( const char * const msg )
{
if( verbosity >= 0 )
- fprintf( stderr, "%s: internal error: %s.\n", program_name, msg );
+ fprintf( stderr, "%s: internal error: %s\n", program_name, msg );
exit( 3 );
}
@@ -553,7 +553,7 @@ int main( const int argc, const char * const argv[] )
case 'u': buffer_size = get_dict_size( arg ); break;
case 'v': if( verbosity < 4 ) ++verbosity; break;
case 'V': show_version(); return 0;
- default : internal_error( "uncaught option" );
+ default : internal_error( "uncaught option." );
}
} /* end process options */