#35886 [Asn->Ver]: file_get_contents fails with some combinations of offset & maxlen

ID: 35886 Updated by: nlopess@php.net Reported By: chris at lodesys dot com -Status: Assigned +Status: Verified Bug Type: Reproducible crash Operating System: Windows PHP Version: 5CVS-2006-01-03 (snap) Assigned To: nlopess New Comment: OK, the problem is in the MapViewOfFile() call in php_stdiop_set_option(), because it is mapping less data than we've asked. It seems a windows problem to me, but I'm leaving open because this can be a serious bug (although I'm not able to fix it..). Previous Comments: ------------------------------------------------------------------------ [2006-01-05 00:26:24] nlopess@php.net OK, back from the school exams, the problem seems to be in php_stdiop_set_option(), because it is allocating one less byte than it should. (and that mmap code is specific for windows). I'll try to investigate the problem further and produce a patch. ------------------------------------------------------------------------ [2006-01-04 01:25:08] sniper@php.net Nuno, if you can reproduce -> provide the backtrace. ------------------------------------------------------------------------ [2006-01-04 00:11:14] nlopess@php.net I'm able to reproduce the crash on Windows XP. ------------------------------------------------------------------------ [2006-01-03 23:50:54] chris at lodesys dot com Not in a position to buy/snag a copy of the Microsoft compiler (let me know if MSVC6 is something else), so will have to let it go unless someone else can duplicate it. Too bad you can't get the info. you need from Dr. Watson. Have worked around it on my own project by changing the size of the fetch (just need the first 6KB of 12-200 KB text files). Thanks for your help! ------------------------------------------------------------------------ [2006-01-03 22:47:53] tony2001@php.net Thank you for this bug report. To properly diagnose the problem, we need a backtrace to see what is happening behind the scenes. To find out how to generate a backtrace, please read http://bugs.php.net/bugs-generating-backtrace.php for *NIX and http://bugs.php.net/bugs-generating-backtrace-win32.php for Win32 Once you have generated a backtrace, please submit it to this bug report and change the status back to "Open". Thank you for helping us make PHP better. Works perfectly fine here. ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/35886 -- Edit this bug report at http://bugs.php.net/?id=35886&edit=1