X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fgcrypt%2Fdigest.c;h=c8d4b3149b36f54e7cf31b4e4ec30719dd310099;hb=77cd819058de43a5fcea54300dde50e03088c318;hp=ad1f31d825ede77f9f508510592623ddf0e942c6;hpb=3b6d366005b6fc23c705b3156e365316f6ab776c;p=tinc

diff --git a/src/gcrypt/digest.c b/src/gcrypt/digest.c
index ad1f31d8..c8d4b314 100644
--- a/src/gcrypt/digest.c
+++ b/src/gcrypt/digest.c
@@ -166,13 +166,21 @@ bool digest_verify(digest_t *digest, const void *indata, size_t inlen, const voi
 }
 
 int digest_get_nid(const digest_t *digest) {
+	if(!digest || !digest->nid) {
+		return 0;
+	}
+
 	return digest->nid;
 }
 
 size_t digest_length(const digest_t *digest) {
+	if(!digest) {
+		return 0;
+	}
+
 	return digest->maclength;
 }
 
 bool digest_active(const digest_t *digest) {
-	return digest->algo != GCRY_MD_NONE;
+	return digest && digest->algo != GCRY_MD_NONE;
 }