From 71be565cf48f17b21eebbcde1ddba27c6e06d4c5 Mon Sep 17 00:00:00 2001
From: Daniel Stenberg <daniel@haxx.se>
Date: Wed, 21 Apr 2010 23:20:18 +0200
Subject: curl: -O crash on windows

The -O option caused curl to crash on windows and DOS due to the
tool writing out of boundary memory.
---
 src/main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/main.c b/src/main.c
index b7e438b1e..2dd6dc873 100644
--- a/src/main.c
+++ b/src/main.c
@@ -5839,7 +5839,8 @@ rename_if_dos_device_name (char *file_name)
 static char *sanitize_dos_name(char *fn)
 {
   char tmpfn[PATH_MAX];
-  fn[PATH_MAX-1]=0; /* ensure fn is not too long by possibly truncating it */
+  if(strlen(fn) >= PATH_MAX)
+    fn[PATH_MAX-1]=0; /* truncate it */
   strcpy(tmpfn, msdosify(fn));
   free(fn);
   return strdup(rename_if_dos_device_name(tmpfn));
-- 
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