/*
 *     Copyright 2022 The Dragonfly Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package ip

import "net"

// FormatIP returns a valid textual representation of an IP address.
func FormatIP(addr string) (string, bool) {
	ip := net.ParseIP(addr)
	if ip == nil {
		return "", false
	}

	if ip.To4() != nil {
		return addr, true
	}

	return "[" + addr + "]", true
}