Allow 24bits subnet on ZabbixAgent

--- zabbix-1.8.6.orig/src/libs/zbxcomms/comms.c 2011-08-04 05:23:14.000000000 -0300
+++ zabbix-1.8.6/src/libs/zbxcomms/comms.c  2011-08-11 14:41:33.000000000 -0300
@@ -1216,7 +1216,7 @@
                sip = inet_ntoa(*((struct in_addr *)hp->h_addr));

                if (4 == sscanf(sip, "%d.%d.%d.%d", &j[0], &j[1], &j[2], &j[3]) &&
-                       i[0] == j[0] && i[1] == j[1] && i[2] == j[2] && i[3] == j[3])
+                       i[0] == j[0] && i[1] == j[1] && i[2] == j[2] && ( i[3] == j[3] || j[3] == 0 ))
                {
                    return SUCCEED;
                }