tsig: don't abort on NULL tkey->creator

diff --git a/lib/dns/tsig.c b/lib/dns/tsig.c
index 117e0b8e72f27568e85bd071dd05f0877939c701..4369d4803c241b884ab5a2b946f65147a6448556 100644 (file)
--- a/lib/dns/tsig.c
+++ b/lib/dns/tsig.c
@@ -203,8 +203,10 @@ tsig_log(dns_tsigkey_t *key, int level, const char *fmt, ...) {
        else
                strcpy(namestr, "<null>");
 
-       if (key != NULL && key->generated)
+       if (key != NULL && key->generated && key->creator)
                dns_name_format(key->creator, creatorstr, sizeof(creatorstr));
+       else
+               strcpy(creatorstr, "<null>");
 
        va_start(ap, fmt);
        vsnprintf(message, sizeof(message), fmt, ap);