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-rw-r--r--nis/nss_nis/nis-netgrp.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/nis/nss_nis/nis-netgrp.c b/nis/nss_nis/nis-netgrp.c
index 7609ea08ed..aa51c2f0df 100644
--- a/nis/nss_nis/nis-netgrp.c
+++ b/nis/nss_nis/nis-netgrp.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
@@ -52,7 +52,7 @@ _nss_nis_setnetgrent (char *group)
status = NSS_STATUS_SUCCESS;
- if (group[0] == '\0')
+ if (group == NULL || group[0] == '\0')
return NSS_STATUS_UNAVAIL;
if (yp_get_default_domain (&domain))