From 23d632de5d5a99914c90d3b4842e426802347e77 Mon Sep 17 00:00:00 2001
From: Guido Vranken <guidovranken@gmail.com>
Date: Thu, 8 Jun 2017 00:44:15 +0200
Subject: [PATCH] refactor my_strupr

Refactor my_strupr such that it will not check and possibly alter bytes
after the string's null terminator for strings of length 0.

Signed-off-by: Guido Vranken <guidovranken@gmail.com>
Acked-by: Gert Doering <gert@greenie.muc.de>
Message-Id: <CAO5O-ELXwXgGtRFou=FY1TAhW4W4BHPZF4=rqSY877njtXNMJg@mail.gmail.com>
URL: https://www.mail-archive.com/openvpn-devel@lists.sourceforge.net/msg14756.html
Signed-off-by: Gert Doering <gert@greenie.muc.de>
(cherry picked from commit 69162924de3600bfe8ae9708a1d6e3f4515ef995)
(cherry picked from commit 8dd598e89f25074f2d4d23f77cb601cf48a810e3)
---
 ntlm.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/ntlm.c b/ntlm.c
index 0453358cc..5c3d6d6ad 100644
--- a/ntlm.c
+++ b/ntlm.c
@@ -127,13 +127,16 @@ gen_nonce (unsigned char *nonce)
 	}
 }
 
-unsigned char *my_strupr(unsigned char *str)
-{ 
-	/* converts string to uppercase in place */
-	unsigned char *tmp = str;;
+void
+my_strupr(unsigned char *str)
+{
+    /* converts string to uppercase in place */
 
-	do *str = toupper(*str); while (*(++str));
-	return tmp;
+    while (*str)
+    {
+        *str = toupper(*str);
+        str++;
+    }
 }
 
 static int
-- 
2.47.2