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The current implementation of php_get_current_user() uses
the non-reentrant getpwuid() rather than the reentrant
getpwuid_r(). Therefore issuing on Linux in a ZTS enabled
build could lead to unpredictable/undesirable results. the code should use the re-entrant version if it is available.
The following patch which were built against the latest
snapshot (Jan 9 2007, 1330 GMT) modifies the code in
main/safe_mode.c to use the re-entrant getpwuid_r if its
Following makes necessary associated change to configure.in:
Fix tested on Linux RHEL with mysql extension enabled and
sql.safe_mode=On in php.ini. The modified code can then easily be invoked by issuing mysql_connect().
Problem found by code inspection. As with most thread safety
issues difficult to produce a simple testcase which will show a reproducible crash but current Linux executable is clearly not reentrant.
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This bug has been fixed in CVS.
Snapshots of the sources are packaged every three hours; this change
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