From: rabbitt at gmail dot com
Operating system: Linux 2.6.13
PHP version: 4.4.1
PHP Bug Type: Reproducible crash
Bug description: getopt() only usable once - with long options built in,
causes segfault
Description:
------------
Without long options built into zif_getopt(), zif_getopt()'s calls to
getopt() will only return a populated result once. The reason for this is
that 'optind' does not get reset on each call to getopt(). optind is used
to keep track of the most option processed internally in getopt(). Once
getopt() has finished processing the options, optind remains at the last
value it was set to (typically, at this point, optind == argc).
The problem with this is that when getopt() is called a second time, it
thinks that it's already finished with processing the options due to
optind being equal to argc. Worse still, with long optoins built in
(-DHARTMUT_0), it causes a segfault in glibc's getopt.c (function:
_getopt_internal_r() - line 521 specifically).
Reproduce code:
---------------
create file called test.php and add:
<?php
print_r(@getopt('t', array('test')));
print_r(@getopt('t', array('test')));
?>
then run:
php test.php -t
Expected result:
----------------
Array
(
[t] =>
)
Array
(
[t] =>
)
Actual result:
--------------
One of two things will happen:
Array
(
[t] =>
)
Array
(
)
or:
Array
(
)
Segmentation fault (core dumped)
--
Edit bug report at http://bugs.php.net/?id=35594&edit=1
--
Try a CVS snapshot (PHP 4.4):
http://bugs.php.net/fix.php?id=35594&r=trysnapshot44
Try a CVS snapshot (PHP 5.1):
http://bugs.php.net/fix.php?id=35594&r=trysnapshot51
Try a CVS snapshot (PHP 6.0):
http://bugs.php.net/fix.php?id=35594&r=trysnapshot60
Fixed in CVS: http://bugs.php.net/fix.php?id=35594&r=fixedcvs
Fixed in release:
http://bugs.php.net/fix.php?id=35594&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=35594&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=35594&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=35594&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=35594&r=support
Expected behavior: http://bugs.php.net/fix.php?id=35594&r=notwrong
Not enough info:
http://bugs.php.net/fix.php?id=35594&r=notenoughinfo
Submitted twice:
http://bugs.php.net/fix.php?id=35594&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=35594&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=35594&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=35594&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=35594&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=35594&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=35594&r=float
No Zend Extensions: http://bugs.php.net/fix.php?id=35594&r=nozend
MySQL Configuration Error: http://bugs.php.net/fix.php?id=35594&r=mysqlcfg
