Bug #67370 [NEW]: Fseek does not return error (-1) on read out of file

From: roman4e at gmail dot com Operating system: linux mint 15 PHP version: 5.5.13 Package: Filesystem function related Bug Type: Bug Bug description:Fseek does not return error (-1) on read out of file Description: ------------ php v.5.5.5 (cli) (built: Mar 17 2014 12:31:03) (DEBUG) fseek() does not return error (-1) on read out of file, returns 0 Test script: --------------- $f = fopen("file","r"); // file must be several KBytes size $page = 0; while ( !fseek($f,$page,SEEK_SET) ) { $page += 1024; $str = fread($f,1024); if ( $str === false ) die("error reading block"); } echo "ok" Expected result: ---------------- fseek should return -1; Actual result: -------------- file size of 76800 result of reading out of file. last parametr is type of data returned by fread Pageoff = 75776 fseek=0 ftell=75776 read=1024 string Pageoff = 76800 fseek=0 ftell=76800 read=0 string Pageoff = 77824 fseek=0 ftell=77824 read=0 string -- Edit bug report at https://bugs.php.net/bug.php?id=67370&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=67370&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=67370&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=67370&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=67370&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=67370&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=67370&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=67370&r=needscript Try newer version: https://bugs.php.net/fix.php?id=67370&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=67370&r=support Expected behavior: https://bugs.php.net/fix.php?id=67370&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=67370&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=67370&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=67370&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=67370&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=67370&r=dst IIS Stability: https://bugs.php.net/fix.php?id=67370&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=67370&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=67370&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=67370&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=67370&r=mysqlcfg