fix(internal/host): Extract optimizes the return of the minimum index IP

internal/host/host.go

@@ -50,20 +50,16 @@ func Extract(hostPort string, lis net.Listener) (string, error) {
 	if err != nil {
 		return "", err
 	}
-	minIndex := int(^uint(0) >> 1)
-	ips := make([]net.IP, 0)
+	ips := make([]net.IP, 0, 1)
 	for _, iface := range ifaces {
-		if (iface.Flags & net.FlagUp) == 0 {
-			continue
-		}
-		if iface.Index >= minIndex && len(ips) != 0 {
+		if iface.Flags&net.FlagUp == 0 {
 			continue
 		}
 		addrs, err := iface.Addrs()
 		if err != nil {
 			continue
 		}
-		for i, rawAddr := range addrs {
+		for _, rawAddr := range addrs {
 			var ip net.IP
 			switch addr := rawAddr.(type) {
 			case *net.IPAddr:
@@ -74,19 +70,15 @@ func Extract(hostPort string, lis net.Listener) (string, error) {
 				continue
 			}
 			if isValidIP(ip.String()) {
-				minIndex = iface.Index
-				if i == 0 {
-					ips = make([]net.IP, 0, 1)
-				}
 				ips = append(ips, ip)
 				if ip.To4() != nil {
 					break
 				}
 			}
 		}
-	}
-	if len(ips) != 0 {
-		return net.JoinHostPort(ips[len(ips)-1].String(), port), nil
+		if len(ips) != 0 {
+			return net.JoinHostPort(ips[len(ips)-1].String(), port), nil
+		}
 	}
 	return "", nil
 }