Oracle patch to handle invalid inputs
Sent upstream via e-mail
diff --git a/lib/api.c b/lib/api.c
--- a/lib/api.c
+++ b/lib/api.c
@@ -270,6 +270,10 @@
 	char actions_string[ACTION_STRING_BUFSIE];
 
 	assert(from != NULL && to != NULL);
+#ifdef        SUN_CHANGE
+	if (from == NULL || to == NULL)
+		return (idn_invalid_name);
+#endif        /* SUN_CHANGE */
 
 	idn__res_actionstostring(actions, actions_string);
 	TRACE(("idn_encodename(actions=%s, from=\"%s\", tolen=%d)\n",
@@ -296,6 +300,10 @@
 	char actions_string[ACTION_STRING_BUFSIE];
 
 	assert(from != NULL && to != NULL);
+#ifdef        SUN_CHANGE
+	if (from == NULL || to == NULL)
+		return (idn_invalid_name);
+#endif        /* SUN_CHANGE */
 
 	idn__res_actionstostring(actions, actions_string);
 	TRACE(("idn_decodename(actions=%s, from=\"%s\", tolen=%d)\n",
@@ -323,6 +331,10 @@
 	char actions_string[ACTION_STRING_BUFSIE];
 
 	assert(from != NULL && to != NULL);
+#ifdef        SUN_CHANGE
+	if (from == NULL || to == NULL)
+		return (idn_invalid_name);
+#endif        /* SUN_CHANGE */
 
 	idn__res_actionstostring(actions, actions_string);
 	TRACE(("idn_decodename2(actions=%s, from=\"%s\", tolen=%d, "
@@ -360,6 +372,10 @@
 	char actions2_string[ACTION_STRING_BUFSIE];
 
 	assert(name1 != NULL && name2 != NULL);
+#ifdef        SUN_CHANGE
+	if (name1 == NULL || name2 == NULL)
+		return (idn_invalid_name);
+#endif        /* SUN_CHANGE */
 
 	idn__res_actionstostring(actions1, actions1_string);
 	idn__res_actionstostring(actions2, actions2_string);
@@ -391,6 +407,10 @@
 	char actions_string[ACTION_STRING_BUFSIE];
 
 	assert(name != NULL);
+#ifdef        SUN_CHANGE
+	if (name == NULL)
+		return (idn_invalid_name);
+#endif        /* SUN_CHANGE */
 
 	idn__res_actionstostring(actions, actions_string);
 	TRACE(("idn_checkname(actions=%s, name=\"%s\")\n",