From: Todd C. Miller <Todd.Miller@courtesan.com>
Date: Thu, 13 Dec 2001 01:07:25 +0000 (+0000)
Subject: Fix CIDR -> in_addr_t conversion.
X-Git-Tag: SUDO_1_6_4~119
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4572e80469de2384083635ee2ab68eb4ed4458bd;p=sudo

Fix CIDR -> in_addr_t conversion.
---

diff --git a/parse.c b/parse.c
index a6db514e1..5934e7440 100644
--- a/parse.c
+++ b/parse.c
@@ -377,8 +377,14 @@ addr_matches(n)
 	addr.s_addr = inet_addr(n);
 	if (strchr(m, '.'))
 	    mask.s_addr = inet_addr(m);
-	else
-	    mask.s_addr = (1 << atoi(m)) - 1;	/* XXX - better way? */
+	else {
+	    i = 32 - atoi(m);
+	    mask.s_addr = 0xffffffff;
+	    mask.s_addr >>= i;
+	    mask.s_addr <<= i;
+	    mask.s_addr = htonl(mask.s_addr);
+
+	}
 	*(m - 1) = '/';
 
 	for (i = 0; i < num_interfaces; i++)