* Include <sys/socket.h> and <netinet/in.h> in files with <arpa/inet.h>.
* Don't use GCC union assignment feature (.rrs=0 => .rrs.untyped=0).
* Explictly cast things to [const] struct sockaddr* in syscall args.
* Include <sys/socket.h> and <netinet/in.h> in files with <arpa/inet.h>.
* Don't use GCC union assignment feature (.rrs=0 => .rrs.untyped=0).
* Explictly cast things to [const] struct sockaddr* in syscall args.