Bug #54110 [NEW]: tsrm_realpath_r and junction point with denied read access

From: Operating system: Windows PHP version: Irrelevant Package: Filesystem function related Bug Type: Bug Bug description:tsrm_realpath_r and junction point with denied read access Description: ------------ tsrm_realpath_r is having a problem if working with/inside a junction point and "read data/list directory" is denied on this junction point. That's the implementation for many common directories on Windows7/Vista in e.g. %USERPROFILE%, %ALLUSERSPROFILE% like "%USERPROFILE%\SendTo". The problem is a call to CreateFile with GENERIC_READ access in tsrm_realpath_r. Well, the MSDN is writing: > If this parameter is zero, the application can query certain metadata > such as file, directory, or device attributes without accessing that > file or device, even if GENERIC_READ access would have been denied. I think "zero" is save at this point and that's what I'm doing in my patch. Regards, Carsten Test script: --------------- in the shell: md test1 mklink /j test test1 icacls test /deny *S-1-1-0:(rd) php -r "var_dump(realpath('test'));" php -r "var_dump(fopen('test/test.txt', 'w'));" Expected result: ---------------- string(31) "C:\Users\Public\Documents\test1" resource(5) of type (stream) Actual result: -------------- bool(false) Warning: fopen(test/test.txt): failed to open stream: No such file or directory in Command line code on line 1 -- Edit bug report at http://bugs.php.net/bug.php?id=54110&edit=1 -- Try a snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=54110&r=trysnapshot52 Try a snapshot (PHP 5.3): http://bugs.php.net/fix.php?id=54110&r=trysnapshot53 Try a snapshot (trunk): http://bugs.php.net/fix.php?id=54110&r=trysnapshottrunk Fixed in SVN: http://bugs.php.net/fix.php?id=54110&r=fixed Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=54110&r=needdocs Fixed in release: http://bugs.php.net/fix.php?id=54110&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=54110&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=54110&r=needscript Try newer version: http://bugs.php.net/fix.php?id=54110&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=54110&r=support Expected behavior: http://bugs.php.net/fix.php?id=54110&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=54110&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=54110&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=54110&r=globals PHP 4 support discontinued: http://bugs.php.net/fix.php?id=54110&r=php4 Daylight Savings: http://bugs.php.net/fix.php?id=54110&r=dst IIS Stability: http://bugs.php.net/fix.php?id=54110&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=54110&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=54110&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=54110&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=54110&r=mysqlcfg