add permission check

timest · Nov 6, 2017 · aa927d4 · aa927d4
1 parent 65c48fd
commit aa927d4
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/src/main/main.go b/src/main/main.go
@@ -137,6 +137,9 @@ func sendARP() {
 }
 
 func main() {
+    if os.Getuid() != 0 {
+        log.Fatal("goscan must run as root.")
+    }
     flag.StringVar(&iface, "I", "", "Network interface name")
     flag.Parse()
     // 初始化 data