xgzeng

add IP_ADD/DROP_SOURCE_MEMBERSHIP sockopt

3

Socket options IP_ADD_SOURCE_MEMBERSHIP / IP_DROP_SOURCE_MEMBERSHIP is used to manage source-specific multicast group; related constant and struct is defined in libc crate, but not in nix.

listzone may return null id/email for owner field

6

I got ListZone response returned from cloudflare with null value for owner.id and owner.email. The situation causes list zone always fail.