nss_wrapper: fix segfault in print_group() in the testsuite

Running
'TESTS=posix_s3 POSIX_SUBTESTS="RPC-SAMR-LARGE-DC LOCAL-NSS-WRAPPER" make test'
from s3 made smbtorture4 crash on my box.

Michael

diff --git a/lib/nss_wrapper/testsuite.c b/lib/nss_wrapper/testsuite.c
index d6b48393182ab8bc7c21d7dbba827d4dec95a6df..da1a2675a2726c930804327fbf46bf0bf9a64e31 100644 (file)
--- a/lib/nss_wrapper/testsuite.c
+++ b/lib/nss_wrapper/testsuite.c
@@ -175,7 +175,7 @@ static void print_group(struct group *grp)
               grp->gr_passwd,
               (unsigned long)grp->gr_gid);
 
-       if (!grp->gr_mem[0]) {
+       if ((grp->gr_mem == NULL) || !grp->gr_mem[0]) {
                printf("\n");
                return;
        }