From 8a0409ab5f6f4aecd657d1dbbf6adaac0c13e0de Mon Sep 17 00:00:00 2001
From: "bernard.xiong" <bernard.xiong@gmail.com>
Date: Thu, 18 Feb 2010 04:04:38 +0000
Subject: [PATCH] add lwip_get_error function.

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@420 bbd45198-f89e-11dd-88c7-29a3b14d5316
---
 net/lwip/src/api/sockets.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/net/lwip/src/api/sockets.c b/net/lwip/src/api/sockets.c
index 36df4d8960..fc56fb465e 100644
--- a/net/lwip/src/api/sockets.c
+++ b/net/lwip/src/api/sockets.c
@@ -238,6 +238,14 @@ alloc_socket(struct netconn *newconn)
   return -1;
 }
 
+int lwip_get_error(int s)
+{
+	struct lwip_socket *sock;
+	sock = get_socket(s);
+
+	return sock->err;
+}
+
 /* Below this, the well-known socket functions are implemented.
  * Use google.com or opengroup.org to get a good description :-)
  *
-- 
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