exit(1);
}
mask.s_addr = htonl(~((1L << (32 - bits)) - 1) & 0xffffffff);
} else if (!inet_pton(AF_INET6, tmask, &mask))
} else if (!inet_pton(AF_INET, tmask, &mask))
{
fprintf(stderr, "Could not parse \"%s\" as a netmask\n", tmask);