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authorTodd C. Miller <millert@cvs.openbsd.org>2001-06-17 22:54:45 +0000
committerTodd C. Miller <millert@cvs.openbsd.org>2001-06-17 22:54:45 +0000
commite4b09237672c3f715d4eaea29319d825c3e14494 (patch)
treeb8a64d362747b98126fd7bb591b10d09f830ea33 /usr.bin
parentf7af1085deb6d0912133129e632f7b34ce76d83d (diff)
be careful to avoid null pointer deref
Diffstat (limited to 'usr.bin')
-rw-r--r--usr.bin/skeyinfo/skeyinfo.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/usr.bin/skeyinfo/skeyinfo.c b/usr.bin/skeyinfo/skeyinfo.c
index fbf150aaac6..80050068a69 100644
--- a/usr.bin/skeyinfo/skeyinfo.c
+++ b/usr.bin/skeyinfo/skeyinfo.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: skeyinfo.c,v 1.7 2001/06/17 22:44:51 millert Exp $ */
+/* $OpenBSD: skeyinfo.c,v 1.8 2001/06/17 22:54:44 millert Exp $ */
/*
* Copyright (c) 1997, 2001 Todd C. Miller <Todd.Miller@courtesan.com>
@@ -82,7 +82,8 @@ main(argc, argv)
as = auth_userchallenge(name, "skey", NULL, &challenge);
if (as == NULL || challenge == NULL) {
- auth_close(as);
+ if (as)
+ auth_close(as);
errx(1, "unable to retrieve S/Key challenge for %s", name);
}