X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=src%2Fopenssl%2Fdigest.c;h=8d6e64da40f3bce367433465f0d78bdf02256044;hb=70b9e071d137c4c9c9edc4e916fcddfed39aea7d;hp=8d97e3bf9ed345c53e5db8dc7949297e06920c65;hpb=ee34ac3d6125b7d1f41afa82c7e30f0a7205546c;p=meshlink

diff --git a/src/openssl/digest.c b/src/openssl/digest.c
index 8d97e3bf..8d6e64da 100644
--- a/src/openssl/digest.c
+++ b/src/openssl/digest.c
@@ -1,6 +1,6 @@
 /*
     digest.c -- Digest handling
-    Copyright (C) 2007-2013 Guus Sliepen <guus@tinc-vpn.org>
+    Copyright (C) 2014 Guus Sliepen <guus@meshlink.io>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -115,14 +115,23 @@ bool digest_verify(digest_t *digest, const void *indata, size_t inlen, const voi
 }
 
 int digest_get_nid(const digest_t *digest) {
-	return digest->digest ? digest->digest->type : 0;
+	if(!digest || !digest->digest)
+		return 0;
+
+	return digest->digest->type;
 }
 
 size_t digest_keylength(const digest_t *digest) {
+	if(!digest || !digest->digest)
+		return 0;
+
 	return digest->digest->md_size;
 }
 
 size_t digest_length(const digest_t *digest) {
+	if(!digest)
+		return 0;
+
 	return digest->maclength;
 }