#44667 [NEW]: proc_open does not handle pipes with the mode 'wb' correctly

From: mike at silverorange dot com Operating system: Irrelevant PHP version: 5.2CVS-2008-04-08 (CVS) PHP Bug Type: Program Execution Bug description: proc_open does not handle pipes with the mode 'wb' correctly Description: ------------ proc_open.c checks if the mode parameter != "w" instead of checking the first character of the mode parameter. This prevents the mode 'wb' from working properly. Reproduce code: --------------- <?php $pipes = array(); $descriptor_spec = array( 0 => array('pipe', 'rb'), 1 => array('pipe', 'wb'), ); $proc = proc_open('cat', $descriptor_spec, $pipes); fwrite($pipes[0], 'Hello', 5); fflush($pipes[0]); fclose($pipes[0]); $result = fread($pipes[1], 5); fclose($pipes[1]); proc_close($proc); echo "Result is: ", $result, "\n"; ?> Expected result: ---------------- Result is: Hello Actual result: -------------- on stderr: cat: write error: Bad file descriptor on stdout: Result is: -- Edit bug report at http://bugs.php.net/?id=44667&edit=1 -- Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=44667&r=trysnapshot52 Try a CVS snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=44667&r=trysnapshot53 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=44667&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=44667&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=44667&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=44667&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=44667&r=needscript Try newer version: http://bugs.php.net/fix.php?id=44667&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=44667&r=support Expected behavior: http://bugs.php.net/fix.php?id=44667&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=44667&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=44667&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=44667&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=44667&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=44667&r=dst IIS Stability: http://bugs.php.net/fix.php?id=44667&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=44667&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=44667&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=44667&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=44667&r=mysqlcfg