Fix a possible infinite loop in "route flush" on 64-bit archs.

MFC after: 3 days
2012-02-04 17:53:22 +00:00 · 2012-02-04 17:53:22 +00:00 · 0f7ce0eaaf
commit 0f7ce0eaaf
parent d657a808e1
1 changed files with 2 additions and 2 deletions
--- a/sbin/route/route.c
+++ b/sbin/route/route.c
@ -460,8 +460,8 @@ netname(struct sockaddr *sa)
 			 * Guess at the subnet mask, assuming reasonable
 			 * width subnet fields.
 			 */
-			while (in.s_addr &~ mask)
-				mask = (long)mask >> subnetshift;
+			while (in.s_addr & ~mask)
+				mask |= mask >> subnetshift;
 			net = in.s_addr & mask;
 			while ((mask & 1) == 0)
 				mask >>= 1, net >>= 1;