Bug #72092 [NEW]: CURLOPT_FILE is rewinded depending on stream type

From: bugs dot php dot net at ss dot st dot tc Operating system: Linux PHP version: 7.0.5 Package: cURL related Bug Type: Bug Bug description:CURLOPT_FILE is rewinded depending on stream type Description: ------------ When using CURLOPT_FILE, file position indicator stays in the end when the handle is a temporary stream. However the indicator is rewinded to 0 when the handle is a regular file (which seems to be a wrong behaviour). Tested in PHP 7.0.5 and 5.6.20. Test script: --------------- <?php function test($filename) { echo $filename, PHP_EOL; $fh = fopen($filename, 'w'); $curl = curl_init('http://php.net/'); curl_setopt($curl, CURLOPT_FILE, $fh); curl_exec($curl); echo ' fstat size: ', fstat($fh)['size'], PHP_EOL; echo ' ftell: ', ftell($fh), PHP_EOL; } test('regular-file.tmp'); test('php://temp'); Expected result: ---------------- regular-file.tmp fstat size: 19371 ftell: 19371 php://temp fstat size: 19371 ftell: 19371 Actual result: -------------- regular-file.tmp fstat size: 19371 ftell: 0 php://temp fstat size: 19371 ftell: 19371 -- Edit bug report at https://bugs.php.net/bug.php?id=72092&edit=1 -- Try a snapshot (PHP 5.4): https://bugs.php.net/fix.php?id=72092&r=trysnapshot54 Try a snapshot (PHP 5.5): https://bugs.php.net/fix.php?id=72092&r=trysnapshot55 Try a snapshot (trunk): https://bugs.php.net/fix.php?id=72092&r=trysnapshottrunk Fixed in SVN: https://bugs.php.net/fix.php?id=72092&r=fixed Fixed in release: https://bugs.php.net/fix.php?id=72092&r=alreadyfixed Need backtrace: https://bugs.php.net/fix.php?id=72092&r=needtrace Need Reproduce Script: https://bugs.php.net/fix.php?id=72092&r=needscript Try newer version: https://bugs.php.net/fix.php?id=72092&r=oldversion Not developer issue: https://bugs.php.net/fix.php?id=72092&r=support Expected behavior: https://bugs.php.net/fix.php?id=72092&r=notwrong Not enough info: https://bugs.php.net/fix.php?id=72092&r=notenoughinfo Submitted twice: https://bugs.php.net/fix.php?id=72092&r=submittedtwice register_globals: https://bugs.php.net/fix.php?id=72092&r=globals PHP 4 support discontinued: https://bugs.php.net/fix.php?id=72092&r=php4 Daylight Savings: https://bugs.php.net/fix.php?id=72092&r=dst IIS Stability: https://bugs.php.net/fix.php?id=72092&r=isapi Install GNU Sed: https://bugs.php.net/fix.php?id=72092&r=gnused Floating point limitations: https://bugs.php.net/fix.php?id=72092&r=float No Zend Extensions: https://bugs.php.net/fix.php?id=72092&r=nozend MySQL Configuration Error: https://bugs.php.net/fix.php?id=72092&r=mysqlcfg