From 4639bd0e1865a24158a3f7b46ea9b6d95cbf3f4e Mon Sep 17 00:00:00 2001
From: Ulrich Habel <rhaen@netbsd.org>
Date: Wed, 29 Oct 2008 06:54:26 +0100
Subject: [PATCH] src/utils_dns.c: Cast a `char' to `int' when using `tolower'.

This is needed at least on NetBSD, but probably on other non-GNU libcs as well.

Resolves: #32
---
 src/utils_dns.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/utils_dns.c b/src/utils_dns.c
index 9b001517..46e6018e 100644
--- a/src/utils_dns.c
+++ b/src/utils_dns.c
@@ -390,7 +390,7 @@ handle_dns(const char *buf, int len,
     while ((t = strchr(qh.qname, '\r')))
 	*t = ' ';
     for (t = qh.qname; *t; t++)
-	*t = tolower(*t);
+	*t = tolower((int) *t);
 
     memcpy(&us, buf + offset, 2);
     qh.qtype = ntohs(us);
-- 
2.11.0