37 lines
840 B
Go
37 lines
840 B
Go
// +build darwin dragonfly freebsd netbsd openbsd
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package sockaddr
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import "os/exec"
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var cmds map[string][]string = map[string][]string{
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"route": {"/sbin/route", "-n", "get", "default"},
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}
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type routeInfo struct {
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cmds map[string][]string
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}
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// NewRouteInfo returns a BSD-specific implementation of the RouteInfo
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// interface.
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func NewRouteInfo() (routeInfo, error) {
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return routeInfo{
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cmds: cmds,
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}, nil
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}
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// GetDefaultInterfaceName returns the interface name attached to the default
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// route on the default interface.
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func (ri routeInfo) GetDefaultInterfaceName() (string, error) {
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out, err := exec.Command(cmds["route"][0], cmds["route"][1:]...).Output()
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if err != nil {
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return "", err
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}
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var ifName string
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if ifName, err = parseDefaultIfNameFromRoute(string(out)); err != nil {
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return "", err
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}
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return ifName, nil
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}
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