gateway/gateway_windows.go at master · jackpal/gateway · GitHub

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
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
//go:build windows
// +build windows

package gateway

import (
	"net"
	"os/exec"
	"syscall"
)

func discoverGatewaysOSSpecific() (ips []net.IP, err error) {
	routeCmd := exec.Command("route", "print", "0.0.0.0")
	routeCmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
	output, err := routeCmd.CombinedOutput()
	if err != nil {
		return nil, err
	}

	return parseWindowsGatewayIPs(output)
}

func discoverGatewayInterfaceOSSpecific() (ip net.IP, err error) {
	routeCmd := exec.Command("route", "print", "0.0.0.0")
	routeCmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
	output, err := routeCmd.CombinedOutput()
	if err != nil {
		return nil, err
	}

	ips, err := parseWindowsInterfaceIP(output)
	if err != nil {
		return nil, err
	}
	return ips[0], nil
}

func discoverGatewaysIPv6OSSpecific() (ips []net.IP, err error) {
	routeCmd := exec.Command("route", "print", "-6", "::/0")
	routeCmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
	output, err := routeCmd.CombinedOutput()
	if err != nil {
		return nil, err
	}

	return parseWindowsIPv6GatewayIPs(output)
}

func discoverGatewayInterfaceIPv6OSSpecific() (ip net.IP, err error) {
	routeCmd := exec.Command("route", "print", "-6", "::/0")
	routeCmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
	output, err := routeCmd.CombinedOutput()
	if err != nil {
		return nil, err
	}

	return parseWindowsIPv6InterfaceIP(output)
}