Adding upstream version 1.23.upstream/1.23upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 125 insertions, 0 deletions

diff --git a/list.cc b/list.cc
new file mode 100644
index 0000000..6cc5aab
--- /dev/null
+++ b/list.cc
@@ -0,0 +1,125 @@
+/* Lziprecover - Data recovery tool for the lzip format
+   Copyright (C) 2009-2022 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 <cstdio>
+#include <cstring>
+#include <string>
+#include <vector>
+#include <stdint.h>
+#include <unistd.h>
+#include <sys/stat.h>
+
+#include "lzip.h"
+#include "lzip_index.h"
+
+
+namespace {
+
+void list_line( const unsigned long long uncomp_size,
+                const unsigned long long comp_size,
+                const char * const input_filename )
+  {
+  if( uncomp_size > 0 )
+    std::printf( "%14llu %14llu %6.2f%%  %s\n", uncomp_size, comp_size,
+                  100.0 - ( ( 100.0 * comp_size ) / uncomp_size ),
+                  input_filename );
+  else
+    std::printf( "%14llu %14llu   -INF%%  %s\n", uncomp_size, comp_size,
+                  input_filename );
+  }
+
+} // end namespace
+
+
+int list_files( const std::vector< std::string > & filenames,
+                const bool ignore_errors,
+                const bool ignore_trailing, const bool loose_trailing )
+  {
+  unsigned long long total_comp = 0, total_uncomp = 0;
+  int files = 0, retval = 0;
+  bool first_post = true;
+  bool stdin_used = false;
+
+  for( unsigned i = 0; i < filenames.size(); ++i )
+    {
+    const bool from_stdin = ( filenames[i] == "-" );
+    if( from_stdin ) { if( stdin_used ) continue; else stdin_used = true; }
+    const char * const input_filename =
+      from_stdin ? "(stdin)" : filenames[i].c_str();
+    struct stat in_stats;				// not used
+    const int infd = from_stdin ? STDIN_FILENO :
+      open_instream( input_filename, &in_stats, false, true );
+    if( infd < 0 ) { set_retval( retval, 1 ); continue; }
+
+    const Lzip_index lzip_index( infd, ignore_trailing, loose_trailing,
+                                 ignore_errors, ignore_errors );
+    close( infd );
+    if( lzip_index.retval() != 0 )
+      {
+      show_file_error( input_filename, lzip_index.error().c_str() );
+      set_retval( retval, lzip_index.retval() );
+      continue;
+      }
+    if( verbosity < 0 ) continue;
+    const unsigned long long udata_size = lzip_index.udata_size();
+    const unsigned long long cdata_size = lzip_index.cdata_size();
+    total_comp += cdata_size; total_uncomp += udata_size; ++files;
+    const long members = lzip_index.members();
+    if( first_post )
+      {
+      first_post = false;
+      if( verbosity >= 1 ) std::fputs( "   dict   memb  trail ", stdout );
+      std::fputs( "  uncompressed     compressed   saved  name\n", stdout );
+      }
+    if( verbosity >= 1 )
+      std::printf( "%s %5ld %6lld ", format_ds( lzip_index.dictionary_size() ),
+                   members, lzip_index.file_size() - cdata_size );
+    list_line( udata_size, cdata_size, input_filename );
+
+    if( verbosity >= 2 && ( members > 1 ||
+        ( members == 1 && lzip_index.mblock( 0 ).pos() > 0 ) ) )
+      {
+      std::fputs( " member      data_pos      data_size     member_pos    member_size\n", stdout );
+      long long prev_end = 0;
+      for( long i = 0, gaps = 0; i < members; ++i )
+        {
+        const Block & db = lzip_index.dblock( i );
+        const Block & mb = lzip_index.mblock( i );
+        if( mb.pos() > prev_end )
+          {
+          std::printf( "   gap              -              - %14llu %14llu\n",
+                       prev_end, mb.pos() - prev_end );
+          ++gaps;
+          }
+        std::printf( "%6ld %14llu %14llu %14llu %14llu\n",
+                     i + gaps + 1, db.pos(), db.size(), mb.pos(), mb.size() );
+        prev_end = mb.end();
+        }
+      first_post = true;	// reprint heading after list of members
+      }
+    std::fflush( stdout );
+    }
+  if( verbosity >= 0 && files > 1 )
+    {
+    if( verbosity >= 1 ) std::fputs( "                      ", stdout );
+    list_line( total_uncomp, total_comp, "(totals)" );
+    std::fflush( stdout );
+    }
+  return retval;
+  }