1--TEST-- 2Bug #71263: fread() does not report bzip2.decompress errors 3--EXTENSIONS-- 4bz2 5--FILE-- 6<?php 7 8function test($case) { 9 $plain = "The quick brown fox jumps over the lazy dog."; 10 $fn = "bug71263.bz2"; 11 $compressed = (string) bzcompress($plain); 12 echo "Compressed len = ", strlen($compressed), "\n"; 13 14 if ($case == 1) { 15 // Set a random byte in the middle of the compressed data 16 // --> php_bz2_decompress_filter() detects fatal error 17 // --> fread() displays empty string then garbage, no errors detected: 18 $compressed[strlen($compressed) - 15] = 'X'; 19 } else if ($case == 2) { 20 // Truncate the compressed data 21 // --> php_bz2_decompress_filter() does not detect errors, 22 // --> fread() displays the empty string: 23 $compressed = substr($compressed, 0, strlen($compressed) - 20); 24 } else { 25 // Corrupted final CRC 26 // --> php_bz2_decompress_filter() detects fatal error 27 // --> fread() displays an empty string, then the correct plain text, no error detected: 28 $compressed[strlen($compressed)-2] = 'X'; 29 } 30 31 file_put_contents($fn, $compressed); 32 33 $r = fopen($fn, "r"); 34 stream_filter_append($r, 'bzip2.decompress', STREAM_FILTER_READ); 35 while (!feof($r)) { 36 $s = fread($r, 100); 37 echo "read: "; var_dump($s); 38 } 39 fclose($r); 40 unlink($fn); 41} 42 43test(1); 44test(2); 45test(3); 46?> 47--EXPECTF-- 48Compressed len = 81 49 50Notice: fread(): bzip2 decompression failed in %s on line %d 51read: bool(false) 52Compressed len = 81 53read: string(0) "" 54Compressed len = 81 55 56Notice: fread(): bzip2 decompression failed in %s on line %d 57read: bool(false) 58
