#26786 [NEW]: with CGI, shell_exec()/backtick operator never returns

From: php dot chad at cropcirclesystems dot net Operating system: FreeBSD 5.1-p11 PHP version: 4.3.4 PHP Bug Type: CGI related Bug description: with CGI, shell_exec()/backtick operator never returns Description: ------------ Using the Apache module or the CLI, everything works just fine. However, when using PHP via CGI, the backticks operator and the shell_exec() function both never return, however, they DO successfully execute the command! php blocks idle, not racing. Seems similar to #11224 in effect, but #11224 claims it was fixed in 4.0.6! Also, #11224 is on Windows using IIS! (yuck!) I've built PHP 4.3.4 via FreeBSD's port system, so it could be their problem. I have yet to test this with another operating system. My php.ini is your php.ini- recommended. My configure line is rather large, but can be seen at 'http://www.cropcirclesystems.net/phpinfo.php', although I have many optional modules, I've also tried this with FreeBSD's port's default module selections. I built using: cd /usr/ports/lang/php4; make WITHOUT_CLI=yes WITHOUT_APACHE=yes install; cp /usr/ local/etc/php.ini-recommended /usr/local/etc/php.ini Reproduce code: --------------- <?php print shell_exec('/full/path/to/some/executable'); ?> Expected result: ---------------- the stdout of the executable Actual result: -------------- indefinate waiting. The executable gets executed, though. I'd be happy to follow up with more testing/information. I'll let you know after I try the same thing on FreeBSD 4.9 and Gentoo Linux. -- Edit bug report at http://bugs.php.net/?id=26786&edit=1 -- Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=26786&r=trysnapshot4 Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=26786&r=trysnapshot5 Fixed in CVS: http://bugs.php.net/fix.php?id=26786&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=26786&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=26786&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=26786&r=needscript Try newer version: http://bugs.php.net/fix.php?id=26786&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=26786&r=support Expected behavior: http://bugs.php.net/fix.php?id=26786&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=26786&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=26786&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=26786&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=26786&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=26786&r=dst IIS Stability: http://bugs.php.net/fix.php?id=26786&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=26786&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=26786&r=float