#42560 [NEW]: Empty directory argument to tempnam yields open_basedir problems

From: Bjorn dot Wiberg at its dot uu dot se Operating system: IBM AIX 5.3 5300-05-06 PHP version: 5.2.4 PHP Bug Type: Directory function related Bug description: Empty directory argument to tempnam yields open_basedir problems Description: ------------ If open_basedir is used -- even if it includes /tmp among its directories -- calling tempnam() with an empty string as the first (directory) argument does not make PHP fall back to "the system default" as http://se.php.net/manual/en/function.tempnam.php specifies. Reproduce code: --------------- // open_basedir: .:/apache/php/lib:/tmp:/usr/local/bin:/usr/local/etc/Counter/data:/apache/htdocs/webdev-its tempnam('', 'test'); Expected result: ---------------- No errors, temporary file gets created in /tmp or whatever the fallback is. Actual result: -------------- From the Apache error log: Warning: tempnam(): open_basedir restriction in effect. File() is not within the allowed path(s): (.:/apache/php/lib:/tmp:/usr/local/bin:/usr/local/etc/Counter/data:/apache/htdocs/webdev-its) in /apache/htdocs/webdev-its/limesurvey/admin/classes/pear/OLE/PPS/File.php on line 87 -- Edit bug report at http://bugs.php.net/?id=42560&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=42560&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=42560&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=42560&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=42560&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=42560&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=42560&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=42560&r=needscript Try newer version: http://bugs.php.net/fix.php?id=42560&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=42560&r=support Expected behavior: http://bugs.php.net/fix.php?id=42560&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=42560&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=42560&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=42560&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=42560&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=42560&r=dst IIS Stability: http://bugs.php.net/fix.php?id=42560&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=42560&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=42560&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=42560&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=42560&r=mysqlcfg