3691 setgroups() needs a sorted GID list for more than 16 groups
Reviewed-By: Marcel Telka <marcel@telka.sk>
Reviewed-By: Richard Lowe <richlowe@richlowe.net>

*** 17,26 ****
--- 17,29 ----
   * information: Portions Copyright [yyyy] [name of copyright owner]
   *
   * CDDL HEADER END
   */
  /*
+  * Copyright (c) 2013, Ira Cooper.  All rights reserved.
+  */
+ /*
   * Copyright (c) 1989, 2010, Oracle and/or its affiliates. All rights reserved.
   */
  
  /*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
  /*        All Rights Reserved   */
*** 1438,1447 ****
--- 1441,1451 ----
                  kmem_free(mem, sz);
                  return (NULL);
          }
          mem->crg_ref = 1;
          mem->crg_ngroups = n;
+         qsort(mem->crg_groups, n, sizeof (gid_t), gidcmp);
          return (mem);
  }
  
  const gid_t *
  crgetggroups(const credgrp_t *grps)