if ((natfp = fopen("/proc/net/nf_conntrack", "r")) == 0 &&
errno != ENOENT) {
die(1, "failed to open `/proc/net/nf_conntrack' for reading: %s",
if ((natfp = fopen("/proc/net/nf_conntrack", "r")) == 0 &&
errno != ENOENT) {
die(1, "failed to open `/proc/net/nf_conntrack' for reading: %s",