Memory leak fix for: src/solaris/native/com/sun/security/auth/module/Unix.c

[Dmitry Samersoff]

John,

Sorry for being later. Again, it's not to your changes but as well as
you are touching this code.

88, 103, 118: Type-o - we are checking for uid,gid,groups field,
    but exception says "invalid field: username" in all cases.

    It's better to fix it as well.

??: Does it make sense to abort after (*env)->ThrowNew(...) ?

-Dmitry


On 2012-10-20 00:28, John Zavgren wrote:
> Greetings:
> The following webrev image contains a fix for a memory leak that occurs in the procedure: Java_com_sun_security_auth_module_UnixSystem_getUnixInfo (JNIEnv *env, jobject obj) in the file: jdk/src/solaris/native/com/sun/security/auth/module/Unix.c
> 
> http://cr.openjdk.java.net/~khazra/john/8000204/webrev/
> 
> The leaked memory is associated with the pointer named "groups": gid_t *groups = (gid_t *)calloc(numSuppGroups, sizeof(gid_t));id 
> 
> The procedure in question exits in many places and in every case it's necessary to deallocate this memory. The leak occurred because returns were being made without freeing it. I fixed the leak by modifying the code so that there is a common "exit point", that is reached from these same places via goto statements, that performs this common function, immediately before the "return" statement.
> 
> Thanks!
> John Zavgren
> john.zavgren at oracle.com
> 


-- 
Dmitry Samersoff
Java Hotspot development team, SPB04
* There will come soft rains ...