lzip/lunzip
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Adding upstream version 1.5.

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Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
Daniel Baumann 2025-02-17 22:16:00 +01:00
parent 25083e3fd1
commit f71ad10fd3
Signed by: daniel
GPG key ID: FBB4F0E80A80222F
11 changed files with 91 additions and 91 deletions
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40
main.c
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@ -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 */