realmname may be NULL

diff --git a/src/modules/rlm_realm/rlm_realm.c b/src/modules/rlm_realm/rlm_realm.c
index b2cc178ea5300b80df7b92b7f2d0e3ff053e1bb3..24894ea46606e0c7c5eeabf3b5aeb107028afef0 100644 (file)
--- a/src/modules/rlm_realm/rlm_realm.c
+++ b/src/modules/rlm_realm/rlm_realm.c
@@ -220,8 +220,14 @@ static int check_for_realm(void *instance, REQUEST *request, REALM **returnrealm
         *      entered.
         */
        if (realm->name[0] != '~') realmname = realm->name;
-       pair_make_request("Realm", realmname, T_OP_EQ);
-       RDEBUG2("Adding Realm = \"%s\"", realmname);
+
+       /*
+        *      A NULL realmname is allowed.
+        */
+       if (realmname) {
+               pair_make_request("Realm", realmname, T_OP_EQ);
+               RDEBUG2("Adding Realm = \"%s\"", realmname);
+       }
 
        talloc_free(namebuf);
        username = NULL;