Make sure the return value of X509_NAME_oneline(, NULL,) is checked against

NULL.
ok deraadt@ guenther@ jsing@

1 files changed, 4 insertions, 2 deletions

diff --git a/src/lib/libcrypto/asn1/t_x509.c b/src/lib/libcrypto/asn1/t_x509.c
index e6f0692ccc..f4872d8b24 100644
--- a/src/lib/libcrypto/asn1/t_x509.c
+++ b/src/lib/libcrypto/asn1/t_x509.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: t_x509.c,v 1.24 2014/07/11 08:44:47 jsing Exp $ */
+/* $OpenBSD: t_x509.c,v 1.25 2014/07/12 16:33:25 miod Exp $ */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
@@ -505,7 +505,9 @@ X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
         l = 80 - 2 - obase;
 
         b = X509_NAME_oneline(name, NULL, 0);
-        if (!*b) {
+        if (b == NULL)
+                return 0;
+        if (*b == '\0') {
                 free(b);
                 return 1;
         }