X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~mdw/git/tripe/blobdiff_plain/dbc84ac3309e10a581233f3a2bd62ba174d247db..d5cdcb8a4f5f6f30d2e6f2f5d16d438a430e3cb6:/server/bulkcrypto.c

diff --git a/server/bulkcrypto.c b/server/bulkcrypto.c
index 6b175ddd..9af4bb8c 100644
--- a/server/bulkcrypto.c
+++ b/server/bulkcrypto.c
@@ -889,11 +889,10 @@ static bulkalgs *aead_getalgs(const algswitch *asw, dstr *e,
   p = key_getattr(kf, k, "tagsz");
   if (!p) {
     p = key_getattr(kf, k, "mac");
-    if (strncmp(p, "aead", 4) != 0 || (p[4] && p[4] != '/')) {
-      a_format(e, "unknown-mac", "%s", p, A_END);
-      goto fail;
-    }
-    if (p[4] == '/') p += 5;
+    if (!p) ;
+    else if (strncmp(p, "aead", 4) != 0 || (p[4] && p[4] != '/'))
+      { a_format(e, "unknown-mac", "%s", p, A_END); goto fail; }
+    else if (p[4] == '/') p += 5;
     else p = 0;
   }
   if (!p)