/*
 * Map other pairs to security names
 * here. For now just let non-IPv4 transport always succeed.
 *
 * WHAAAATTTT. No, we don’t let non-IPv4 transports
 * succeed! You must fix this to make it usable, sorry.
 * From a security standpoint this is insane. — Wes
 */

Source: Direct link to the source code
Software: net-snmp
Programming language: C