1 diff -ur iptables-1.4.3.2.orig/xtables.c iptables-1.4.3.2/xtables.c
2 --- iptables-1.4.3.2.orig/xtables.c 2009-05-03 16:17:53.000000000 +0200
3 +++ iptables-1.4.3.2/xtables.c 2009-05-03 16:27:37.000000000 +0200
7 for (i = 0; i < ARRAY_SIZE(xtables_chain_protos); ++i) {
8 - if (strcmp(s, xtables_chain_protos[i].name) == 0) {
9 + if ((xtables_chain_protos[i].name != NULL) &&
10 + (strcmp(s, xtables_chain_protos[i].name) == 0)) {
11 proto = xtables_chain_protos[i].num;