vcom_socket_accept (int __fd, __SOCKADDR_ARG __addr,
socklen_t * __restrict __addr_len);
-#ifdef __USE_GNU
int
vcom_socket_accept4 (int __fd, __SOCKADDR_ARG __addr,
socklen_t * __restrict __addr_len, int __flags);
-#endif
int vcom_socket_shutdown (int __fd, int __how);