MSH: perfect cmd ifconfig.

components/finsh/msh_cmd.c

@@ -182,14 +182,32 @@ FINSH_FUNCTION_EXPORT_ALIAS(cmd_mkdir, __cmd_mkdir, Create the DIRECTORY.);
 #ifdef RT_USING_LWIP
 int cmd_ifconfig(int argc, char** argv)
 {
- 	extern void list_if(void);
+    extern void list_if(void);
+    extern void set_if(char* netif_name, char* ip_addr, char* gw_addr, char* nm_addr);
 
-	list_if();
-	return 0;
+
+    if(argc == 1)
+    {
+        list_if();
+    }
+    else if(argc == 5)
+    {
+        rt_kprintf("config : %s\n", argv[1]);
+        rt_kprintf("IP addr: %s\n", argv[2]);
+        rt_kprintf("Gateway: %s\n", argv[3]);
+        rt_kprintf("netmask: %s\n", argv[4]);
+        set_if(argv[1], argv[2], argv[3], argv[4]);
+    }
+    else
+    {
+        rt_kprintf("bad parameter! e.g: ifconfig e0 192.168.1.30 192.168.1.1 255.255.255.0\n");
+    }
+
+    return 0;
 }
 FINSH_FUNCTION_EXPORT_ALIAS(cmd_ifconfig, __cmd_ifconfig, list the information of network interfaces);
 
-#endif
+#endif /* RT_USING_LWIP */
 
 int cmd_ps(int argc, char** argv)
 {