50     virtual Status getsockname(Fd sock, sockaddr* addr, socklen_t* addrlen) const = 0;
52     virtual Status getsockopt(Fd sock, int level, int optname, void *optval,
55     virtual Status setsockopt(Fd sock, int level, int optname, const void* optval,
58     virtual Status bind(Fd sock, const sockaddr* addr, socklen_t addrlen) const = 0;
60     virtual Status connect(Fd sock, const sockaddr* addr, socklen_t addrlen) const = 0;
62     virtual StatusOr<ifreq> ioctl(Fd sock, unsigned long request, ifreq* ifr) const = 0;
74     virtual StatusOr<size_t> sendto(Fd sock, const Slice buf, int flags, const sockaddr* dst,
77     virtual StatusOr<Slice> recvfrom(Fd sock, const Slice dst, int flags, sockaddr* src,
117     StatusOr<SockaddrT> getsockname(Fd sock) const {  in getsockname()  argument
120         RETURN_IF_NOT_OK(getsockname(sock, asSockaddrPtr(&addr), &addrlen));  in getsockname()
125     Status getsockopt(Fd sock, int level, int optname, void* optval, socklen_t* optlen) const {  in getsockopt()  argument
126         return getsockopt(sock, level, optname, optval, optlen);  in getsockopt()
130     Status setsockopt(Fd sock, int level, int optname, const SockoptT& opt) const {  in setsockopt()  argument
131         return setsockopt(sock, level, optname, &opt, sizeof(opt));  in setsockopt()
135     Status bind(Fd sock, const SockaddrT& addr) const {  in bind()  argument
136         return bind(sock, asSockaddrPtr(&addr), sizeof(addr));  in bind()
140     Status connect(Fd sock, const SockaddrT& addr) const {  in connect()  argument
141         return connect(sock, asSockaddrPtr(&addr), sizeof(addr));  in connect()
162     StatusOr<size_t> sendto(Fd sock, const Slice buf, int flags, const SockaddrT& dst) const {  in sendto()  argument
163         return sendto(sock, buf, flags, asSockaddrPtr(&dst), sizeof(dst));  in sendto()
167     StatusOr<Slice> recvfrom(Fd sock, const Slice dst, int flags) const {  in recvfrom()  argument
168         return recvfrom(sock, dst, flags, nullptr, nullptr);  in recvfrom()
172     StatusOr<std::pair<Slice, SockaddrT>> recvfrom(Fd sock, const Slice dst, int flags) const {  in recvfrom()  argument
175         ASSIGN_OR_RETURN(auto used, recvfrom(sock, dst, flags, asSockaddrPtr(&addr), &addrlen));  in recvfrom()