Change Details

Currently, I haven't changed much code, just introduced `in6addr_whod_group` like `INADDR_WHOD_GROUP` is for ipv4. Also changed come code in main() to use `getaddrinfo(3)` with `AF_UNSPEC`. I didn't change code further to first get advise on how should I conditionally select `ipv6`/`ipv4` for multicast. The global `multicast_addr` currently sticks to `AF_INET`. I can use struct `sockaddr_storage`, but on what basis should I select whether to use` ipv6` or `ipv4`, like should I conditionally allow both or take it as input through args?

Currently, I haven't changed much code, just introduced `in6addr_whod_group` like `INADDR_WHOD_GROUP` is for ipv4. Also changed come code in main() to use `getaddrinfo(3)` with `AF_UNSPEC`. Also `struct servent *hp` was a global variable just being used for port information. So I replaced it with `in_port_t who_port`. I didn't change code further to first get advise on how should I conditionally select `ipv6`/`ipv4` for multicast. The global `multicast_addr` currently sticks to `AF_INET`. I can use struct `sockaddr_storage`, but on what basis should I select whether to use` ipv6` or `ipv4`, like should I conditionally allow both or take it as input through args?

Currently, I haven't changed much code, just introduced `in6addr_whod_group` like `INADDR_WHOD_GROUP` is for ipv4. Also changed come code in main() to use `getaddrinfo(3)` with `AF_UNSPEC`. Also `struct servent *hp` was a global variable just being used for port information. So I replaced it with `in_port_t who_port`. I didn't change code further to first get advise on how should I conditionally select `ipv6`/`ipv4` for multicast. The global `multicast_addr` currently sticks to `AF_INET`. I can use struct `sockaddr_storage`, but on what basis should I select whether to use` ipv6` or `ipv4`, like should I conditionally allow both or take it as input through args?