do_nodelay = 1;
} else if (!strncmp(ptr,"to=",3)) {
/* nothing, inet_listen() parses this one */;
+ } else if (!strncmp(ptr,"ipv4",4)) {
+ /* nothing, inet_connect() and inet_listen() parse this one */;
+ } else if (!strncmp(ptr,"ipv6",4)) {
+ /* nothing, inet_connect() and inet_listen() parse this one */;
} else {
printf("Unknown option: %s\n", ptr);
goto fail;