From fb9de67c11db6ab2f5e3d705d842cb99481c1ee3 Mon Sep 17 00:00:00 2001
From: Assar Westerlund <assar@sics.se>
Date: Sat, 3 Jul 1999 02:37:57 +0000
Subject: [PATCH] (writev): error check malloc properly

git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@6405 ec53bebd-3082-4978-b11e-865c3cabbd6b
---
 lib/roken/writev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/roken/writev.c b/lib/roken/writev.c
index 8aaf39754..e6175f3d6 100644
--- a/lib/roken/writev.c
+++ b/lib/roken/writev.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
+ * Copyright (c) 1995, 1996, 1997, 1998, 1999 Kungliga Tekniska Högskolan
  * (Royal Institute of Technology, Stockholm, Sweden).
  * All rights reserved.
  * 
@@ -54,7 +54,7 @@ writev(int d, const struct iovec *iov, int iovcnt)
     for(i = 0; i < iovcnt; ++i)
 	tot += iov[i].iov_len;
     buf = malloc(tot);
-    if (buf == NULL) {
+    if (tot != 0 && buf == NULL) {
 	errno = ENOMEM;
 	return -1;
     }