From ea82b6b2c0ca6045dd7ae61829eeefef4f9ce0a2 Mon Sep 17 00:00:00 2001
From: Johan Danielsson <joda@pdc.kth.se>
Date: Sun, 5 Apr 1998 06:31:17 +0000
Subject: [PATCH] Check for error before returning errno.

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@4730 ec53bebd-3082-4978-b11e-865c3cabbd6b
---
 lib/krb5/read_message.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/lib/krb5/read_message.c b/lib/krb5/read_message.c
index 1c9820268..83bc7910b 100644
--- a/lib/krb5/read_message.c
+++ b/lib/krb5/read_message.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997 Kungliga Tekniska Högskolan
+ * Copyright (c) 1997, 1998 Kungliga Tekniska Högskolan
  * (Royal Institute of Technology, Stockholm, Sweden). 
  * All rights reserved. 
  *
@@ -49,8 +49,13 @@ krb5_read_message (krb5_context context,
     u_int32_t len;
     u_int8_t buf[4];
 
-    if (krb5_net_read (context, p_fd, buf, 4) != 4)
+    ret = krb5_net_read (context, p_fd, buf, 4);
+    if(ret == -1)
 	return errno;
+    if(ret < 4) {
+	data->length = 0;
+	return 0;
+    }
     len = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3];
     ret = krb5_data_alloc (data, len);
     if (ret)