From 36882aa67107766801f6c7aedbcbd3aa396ee388 Mon Sep 17 00:00:00 2001
From: des <des@d4fa192b-c00b-0410-8231-f00ffab90ce4>
Date: Sun, 17 Jun 2007 15:10:08 +0000
Subject: [PATCH] Don't allow len to go negative if the header is empty.

git-svn-id: svn+ssh://projects.linpro.no/svn/varnish/trunk@1531 d4fa192b-c00b-0410-8231-f00ffab90ce4
---
 varnish-cache/bin/varnishncsa/varnishncsa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/varnish-cache/bin/varnishncsa/varnishncsa.c b/varnish-cache/bin/varnishncsa/varnishncsa.c
index 92642292..68a891fe 100644
--- a/varnish-cache/bin/varnishncsa/varnishncsa.c
+++ b/varnish-cache/bin/varnishncsa/varnishncsa.c
@@ -155,7 +155,7 @@ trimline(const char *str, const char *end)
 		 /* nothing */ ;
 
 	/* trim trailing space */
-	while (str[len - 1] == ' ')
+	while (len && str[len - 1] == ' ')
 		--len;
 
 	/* copy and return */
-- 
2.39.5