Extend the system informations

client/system/ip.go

@@ -0,0 +1,42 @@
+package system
+
+import (
+	"net"
+
+	log "github.com/sirupsen/logrus"
+)
+
+func localAddresses() (string, string) {
+	conn, err := net.Dial("udp", "8.8.8.8:53")
+	if err != nil {
+		log.Errorf("failed to check ip: %s", err)
+		return "", ""
+	}
+	defer conn.Close()
+
+	localAddr := conn.LocalAddr().(*net.UDPAddr)
+	ifaces, err := net.Interfaces()
+	if err != nil {
+		log.Errorf("failed to list interfaces: %s", err)
+		return "", ""
+	}
+	for _, i := range ifaces {
+		addrs, err := i.Addrs()
+		if err != nil {
+			log.Errorf("failed to list addresses: %s", err)
+			continue
+		}
+
+		for _, addr := range addrs {
+			cidr, _, err := net.ParseCIDR(addr.String())
+			if err != nil {
+				continue
+			}
+
+			if localAddr.IP.String() == cidr.String() {
+				return addr.String(), i.HardwareAddr.String()
+			}
+		}
+	}
+	return "", ""
+}