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updating net check function on macos

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This commit is contained in:
afeiszli 2021-09-19 16:18:22 -04:00
parent a0586ea6d2
commit 06811235c9
1 changed files with 23 additions and 12 deletions
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35
netclient/local/local.go
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@ -4,6 +4,7 @@ import (
//"github.com/davecgh/go-spew/spew" //"github.com/davecgh/go-spew/spew"
"errors" "errors"
"log" "log"
"net"
"runtime" "runtime"
"strings" "strings"
@ -58,23 +59,33 @@ func IsWGInstalled() bool {
return strings.Contains(out, "Available subcommand") return strings.Contains(out, "Available subcommand")
} }
func GetMacIface(addr string) (string, error) { func GetMacIface(ipstring string) (string, error) {
out, err := ncutils.RunCmd("route get "+addr, false) var wgiface string
var iface string _, checknet, err := net.ParseCIDR(ipstring + "/24")
if err != nil { if err != nil {
return iface, errors.New(string(out)) return wgiface, errors.New("could not parse ip " + ipstring)
} }
for _, line := range strings.Split(strings.TrimSuffix(string(out), "\n"), "\n") { ifaces, err := net.Interfaces()
if strings.Contains(line, "interface: ") { if err != nil {
iface = getLineAfter(string(out), "interface: ") return wgiface, err
iface = strings.Split(iface, "\n")[0] }
break for _, iface := range ifaces {
addrs, err := iface.Addrs()
if err != nil {
continue
}
for _, addr := range addrs {
ip := addr.(*net.IPNet).IP
if checknet.Contains(ip) {
wgiface = iface.Name
break
}
} }
} }
if iface == "" { if wgiface == "" {
err = errors.New("could not find iface for ip addr " + addr) err = errors.New("could not find iface for network " + ipstring)
} }
return iface, err return wgiface, err
} }
func getLineAfter(value string, a string) string { func getLineAfter(value string, a string) string {