From c53389e46f94f7161ef9cfb69b23141b568588fc Mon Sep 17 00:00:00 2001
From: bernard <bernard.xiong@rt-thread.com>
Date: Tue, 31 Jan 2017 13:17:34 +0800
Subject: [PATCH] [finsh] Add lwip 2.0.0 support.

---
 components/finsh/msh_cmd.c | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/components/finsh/msh_cmd.c b/components/finsh/msh_cmd.c
index 29a30eabe6..67708d33e6 100644
--- a/components/finsh/msh_cmd.c
+++ b/components/finsh/msh_cmd.c
@@ -314,6 +314,9 @@ FINSH_FUNCTION_EXPORT_ALIAS(cmd_ifconfig, __cmd_ifconfig, list the information o
 #ifdef RT_LWIP_DNS
 #include <lwip/api.h>
 #include <lwip/dns.h>
+#include <lwip/ip_addr.h>
+#include <lwip/init.h>
+
 int cmd_dns(int argc, char **argv)
 {
     extern void set_dns(char* dns_server);
@@ -321,12 +324,22 @@ int cmd_dns(int argc, char **argv)
     if (argc == 1)
     {
         int index;
-        struct ip_addr ip_addr;
+
+#if (LWIP_VERSION) < 0x02000000U
+        ip_addr_t ip_addr;
+        for(index=0; index<DNS_MAX_SERVERS; index++)
+        {
+            ip_addr = dns_getserver(index);
+            rt_kprintf("dns server #%d: %s\n", index, ipaddr_ntoa(&ip_addr));
+        }
+#else
+        const ip_addr_t *ip_addr;
         for(index=0; index<DNS_MAX_SERVERS; index++)
         {
             ip_addr = dns_getserver(index);
-            rt_kprintf("dns server #%d: %s\n", index, ipaddr_ntoa(&(ip_addr)));
+            rt_kprintf("dns server #%d: %s\n", index, ipaddr_ntoa(ip_addr));
         }
+#endif
     }
     else if (argc == 2)
     {
-- 
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