From 53616c9ec511e349810151b9154892130492ae68 Mon Sep 17 00:00:00 2001
From: Adam <Adam@anope.org>
Date: Wed, 6 Aug 2014 04:10:03 -0400
Subject: [PATCH] Fix core from parse_v4_netmask parsing invalid cidrs

---
 src/cidr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/cidr.c b/src/cidr.c
index dcd925cf3..4df879442 100644
--- a/src/cidr.c
+++ b/src/cidr.c
@@ -211,7 +211,7 @@ static int parse_v4_netmask(const char *text, struct IN_ADDR *addr, short int *b
 	{
 		char *after;
 		bits = strtoul(p + 1, &after, 10);
-		if (!bits || *after) /* Error: Invalid number or not end */
+		if (bits < 0 || *after) /* Error: Invalid number or not end */
 			return HM_HOST;
 		if (bits > n * 8) /* Error: More than the bits given */
 			return HM_HOST;