www/plugins-dist/medias/lib/getid3/module.misc.exe.php

   1 <?php
   2
   3 /////////////////////////////////////////////////////////////////
   4 /// getID3() by James Heinrich <info@getid3.org>               //
   5 //  available at https://github.com/JamesHeinrich/getID3       //
   6 //            or https://www.getid3.org                        //
   7 //            or http://getid3.sourceforge.net                 //
   8 //  see readme.txt for more details                            //
   9 /////////////////////////////////////////////////////////////////
  10 //                                                             //
  11 // module.misc.exe.php                                         //
  12 // module for analyzing EXE files                              //
  13 // dependencies: NONE                                          //
  14 //                                                            ///
  15 /////////////////////////////////////////////////////////////////
  16
  17
  18 class getid3_exe extends getid3_handler
  19 {
  20         /**
  21          * @return bool
  22          */
  23         public function Analyze() {
  24                 $info = &$this->getid3->info;
  25
  26                 $this->fseek($info['avdataoffset']);
  27                 $EXEheader = $this->fread(28);
  28
  29                 $magic = 'MZ';
  30                 if (substr($EXEheader, 0, 2) != $magic) {
  31                         $this->error('Expecting "'.getid3_lib::PrintHexBytes($magic).'" at offset '.$info['avdataoffset'].', found "'.getid3_lib::PrintHexBytes(substr($EXEheader, 0, 2)).'"');
  32                         return false;
  33                 }
  34
  35                 $info['fileformat'] = 'exe';
  36                 $info['exe']['mz']['magic'] = 'MZ';
  37
  38                 $info['exe']['mz']['raw']['last_page_size']          = getid3_lib::LittleEndian2Int(substr($EXEheader,  2, 2));
  39                 $info['exe']['mz']['raw']['page_count']              = getid3_lib::LittleEndian2Int(substr($EXEheader,  4, 2));
  40                 $info['exe']['mz']['raw']['relocation_count']        = getid3_lib::LittleEndian2Int(substr($EXEheader,  6, 2));
  41                 $info['exe']['mz']['raw']['header_paragraphs']       = getid3_lib::LittleEndian2Int(substr($EXEheader,  8, 2));
  42                 $info['exe']['mz']['raw']['min_memory_paragraphs']   = getid3_lib::LittleEndian2Int(substr($EXEheader, 10, 2));
  43                 $info['exe']['mz']['raw']['max_memory_paragraphs']   = getid3_lib::LittleEndian2Int(substr($EXEheader, 12, 2));
  44                 $info['exe']['mz']['raw']['initial_ss']              = getid3_lib::LittleEndian2Int(substr($EXEheader, 14, 2));
  45                 $info['exe']['mz']['raw']['initial_sp']              = getid3_lib::LittleEndian2Int(substr($EXEheader, 16, 2));
  46                 $info['exe']['mz']['raw']['checksum']                = getid3_lib::LittleEndian2Int(substr($EXEheader, 18, 2));
  47                 $info['exe']['mz']['raw']['cs_ip']                   = getid3_lib::LittleEndian2Int(substr($EXEheader, 20, 4));
  48                 $info['exe']['mz']['raw']['relocation_table_offset'] = getid3_lib::LittleEndian2Int(substr($EXEheader, 24, 2));
  49                 $info['exe']['mz']['raw']['overlay_number']          = getid3_lib::LittleEndian2Int(substr($EXEheader, 26, 2));
  50
  51                 $info['exe']['mz']['byte_size']          = (($info['exe']['mz']['raw']['page_count'] - 1)) * 512 + $info['exe']['mz']['raw']['last_page_size'];
  52                 $info['exe']['mz']['header_size']        = $info['exe']['mz']['raw']['header_paragraphs'] * 16;
  53                 $info['exe']['mz']['memory_minimum']     = $info['exe']['mz']['raw']['min_memory_paragraphs'] * 16;
  54                 $info['exe']['mz']['memory_recommended'] = $info['exe']['mz']['raw']['max_memory_paragraphs'] * 16;
  55
  56                 $this->error('EXE parsing not enabled in this version of getID3() ['.$this->getid3->version().']');
  57                 return false;
  58
  59         }
  60
  61 }