coldfusion_srv_lookup.cfm

<cfscript>
// converted to cfscript from https://www.petefreitag.com/item/487.cfm
array function srv_lookup(required string name, numeric timeout=60, numeric retries=3) {
	var ht = createobject("java", "java.util.Hashtable");
	ht.put("java.naming.factory.initial", "com.sun.jndi.dns.DnsContextFactory");
	// with arg: string dnsserver="8.8.8.8"
	//  ht.put("java.naming.provider.url", "dns://" & arguments.dnsserver);
	ht.put("com.sun.jndi.dns.timeout.initial", arguments.timeout);
	ht.put("com.syb.jndi.dns.timeout.retries", arguments.retries);

	var dir = createobject("java", "javax.naming.directory.InitialDirContext");
	dir.init(ht);

	var ret = [];
	var type = ['SRV'];
	try {
		var attrs = dir.getAttributes(arguments.name, type);
		var attr_enum = attrs.getAll();
		while(attr_enum.hasMore()) {
			var attr = attr_enum.next();
			var fields = attr.toString().listtoArray(' ', true);

			ret.append({priority:fields[2], weight:fields[3], port:fields[4], target:fields[5]});
		}
	} catch ("javax.naming.NameNotFoundException" nnfe) {
	}

	return ret;
}

variables.name = "_bar._tcp.example.org";
//variables.name = "_foo._tcp.example.org";
writeDump(srv_lookup(variables.name));
</cfscript>