~evanj/cms

ref: 515c5fd9b9df1ff4652d7ce3e5b2f7df58ee5b85 cms/vendor/github.com/google/uuid/node_net.go -rw-r--r-- 949 bytes
515c5fd9Evan M Jones Feat(content search): Pagination for content search complete. Fix up 1 year, 2 months ago
                                                                                
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
// Copyright 2017 Google Inc.  All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// +build !js

package uuid

import "net"

var interfaces []net.Interface // cached list of interfaces

// getHardwareInterface returns the name and hardware address of interface name.
// If name is "" then the name and hardware address of one of the system's
// interfaces is returned.  If no interfaces are found (name does not exist or
// there are no interfaces) then "", nil is returned.
//
// Only addresses of at least 6 bytes are returned.
func getHardwareInterface(name string) (string, []byte) {
	if interfaces == nil {
		var err error
		interfaces, err = net.Interfaces()
		if err != nil {
			return "", nil
		}
	}
	for _, ifs := range interfaces {
		if len(ifs.HardwareAddr) >= 6 && (name == "" || name == ifs.Name) {
			return ifs.Name, ifs.HardwareAddr
		}
	}
	return "", nil
}