connection.go

/*
Copyright (c) 2014 VMware, Inc. All Rights Reserved.

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 ipmi

import (
	"fmt"
	"net"
)

// Connection properties for a Client
type Connection struct {
	Path      string
	Hostname  string
	Port      int
	Username  string
	Password  string
	Interface string
}

// RemoteIP returns the remote (bmc) IP address of the Connection
func (c *Connection) RemoteIP() string {
	if net.ParseIP(c.Hostname) == nil {
		addrs, err := net.LookupHost(c.Hostname)
		if err != nil && len(addrs) > 0 {
			return addrs[0]
		}
	}
	return c.Hostname
}

// LocalIP returns the local (client) IP address of the Connection
func (c *Connection) LocalIP() string {
	conn, err := net.Dial("udp", fmt.Sprintf("%s:%d", c.Hostname, c.Port))
	if err != nil {
		// don't bother returning an error, since this value will never
		// make it to the bmc if we can't connect to it.
		return c.Hostname
	}
	_ = conn.Close()
	host, _, _ := net.SplitHostPort(conn.LocalAddr().String())
	return host
}