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-rw-r--r--list.c123
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+/* Lunzip - Decompressor for the lzip format
+ Copyright (C) 2010-2017 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
+ the Free Software Foundation, either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#define _FILE_OFFSET_BITS 64
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+#include "lzip.h"
+#include "file_index.h"
+
+
+static void list_line( const unsigned long long uncomp_size,
+ const unsigned long long comp_size,
+ const char * const input_filename )
+ {
+ if( uncomp_size > 0 )
+ printf( "%15llu %15llu %6.2f%% %s\n", uncomp_size, comp_size,
+ 100.0 * ( 1.0 - ( (double)comp_size / uncomp_size ) ),
+ input_filename );
+ else
+ printf( "%15llu %15llu -INF%% %s\n", uncomp_size, comp_size,
+ input_filename );
+ }
+
+
+int list_files( const char * const filenames[], const int num_filenames,
+ const bool ignore_trailing )
+ {
+ unsigned long long total_comp = 0, total_uncomp = 0;
+ int files = 0, retval = 0;
+ int i;
+ bool first_post = true;
+ bool stdin_used = false;
+ for( i = 0; i < num_filenames; ++i )
+ {
+ const char * input_filename;
+ struct File_index file_index;
+ struct stat in_stats; /* not used */
+ int infd;
+ const bool from_stdin = ( strcmp( filenames[i], "-" ) == 0 );
+ if( from_stdin ) { if( stdin_used ) continue; else stdin_used = true; }
+ input_filename = from_stdin ? "(stdin)" : filenames[i];
+ infd = from_stdin ? STDIN_FILENO :
+ open_instream( input_filename, &in_stats, true, true );
+ if( infd < 0 ) { if( retval < 1 ) retval = 1; continue; }
+
+ Fi_init( &file_index, infd, ignore_trailing );
+ close( infd );
+ if( file_index.retval != 0 )
+ {
+ show_file_error( input_filename, file_index.error, 0 );
+ if( retval < file_index.retval ) retval = file_index.retval;
+ Fi_free( &file_index ); continue;
+ }
+ if( verbosity >= 0 )
+ {
+ const unsigned long long udata_size = Fi_udata_size( &file_index );
+ const unsigned long long cdata_size = Fi_cdata_size( &file_index );
+ total_comp += cdata_size; total_uncomp += udata_size; ++files;
+ if( first_post )
+ {
+ first_post = false;
+ if( verbosity >= 1 ) fputs( " dict memb trail ", stdout );
+ fputs( " uncompressed compressed saved name\n", stdout );
+ }
+ if( verbosity >= 1 )
+ {
+ long long trailing_size;
+ unsigned dictionary_size = 0;
+ long i;
+ for( i = 0; i < file_index.members; ++i )
+ dictionary_size =
+ max( dictionary_size, Fi_dictionary_size( &file_index, i ) );
+ trailing_size = Fi_file_size( &file_index ) - cdata_size;
+ printf( "%s %5ld %6lld ", format_ds( dictionary_size ),
+ file_index.members, trailing_size );
+ }
+ list_line( udata_size, cdata_size, input_filename );
+
+ if( verbosity >= 2 && file_index.members > 1 )
+ {
+ long i;
+ fputs( " member data_pos data_size member_pos member_size\n", stdout );
+ for( i = 0; i < file_index.members; ++i )
+ {
+ const struct Block * db = Fi_dblock( &file_index, i );
+ const struct Block * mb = Fi_mblock( &file_index, i );
+ printf( "%5ld %15llu %15llu %15llu %15llu\n",
+ i + 1, db->pos, db->size, mb->pos, mb->size );
+ }
+ first_post = true; /* reprint heading after list of members */
+ }
+ fflush( stdout );
+ }
+ Fi_free( &file_index );
+ }
+ if( verbosity >= 0 && files > 1 )
+ {
+ if( verbosity >= 1 ) fputs( " ", stdout );
+ list_line( total_uncomp, total_comp, "(totals)" );
+ fflush( stdout );
+ }
+ return retval;
+ }