From 9c9a020b8f5347f294b487f3d204ae2a32a0a9f2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peter=20=C3=85strand?= <astrand@cendio.com>
Date: Sat, 8 Nov 2003 09:17:41 +0000
Subject: [PATCH] errno is not valid when recv returns zero.

git-svn-id: svn://svn.code.sf.net/p/rdesktop/code/trunk/rdesktop@545 423420c4-83ab-492f-b58f-81f9feb106b5
---
 tcp.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tcp.c b/tcp.c
index 822184a..009c688 100644
--- a/tcp.c
+++ b/tcp.c
@@ -112,11 +112,16 @@ tcp_recv(STREAM s, uint32 length)
 			return NULL;
 
 		rcvd = recv(sock, s->end, length, 0);
-		if (rcvd <= 0)
+		if (rcvd < 0)
 		{
 			error("recv: %s\n", strerror(errno));
 			return NULL;
 		}
+		else if (rcvd == 0)
+		{
+			error("Connection closed\n");
+			return NULL;
+		}
 
 		s->end += rcvd;
 		length -= rcvd;