Get User Groups

From: Kushal Agarwal (kushal.agarwal_at_gmail.com)
Date: 09/29/04 

Date: 29 Sep 2004 12:35:49 -0700

Hello,

I am wondering what is the system call to get all the groups a user
belongs to. I need both the group ids and the group names. I need to
make this call from a c++ module.

Thanks,

Kushal