67 so_check_fd(int fd, int *errno)  in so_check_fd()  argument
73 		*errno = ENOTSOCK;  in so_check_fd()
77 		*errno = ENOTSOCK;  in so_check_fd()
97 	errno = 0;  in socket()
105 		errno = EPROTONOSUPPORT;  in socket()
115 		errno = EMFILE;	/* No slots left. */  in socket()
139 		errno = EPROTOTYPE;  in socket()
143 	if (errno != 0)  in socket()
160 	errno = 0;  in getsockname()
161 	if ((i = so_check_fd(s, &errno)) == -1)  in getsockname()
165 		errno = ENOMEM;  in getsockname()
188 	errno = 0;  in getsockopt()
189 	if ((i = so_check_fd(s, &errno)) == -1)  in getsockopt()
200 				errno = EINVAL;  in getsockopt()
209 				errno = EINVAL;  in getsockopt()
218 				errno = EINVAL;  in getsockopt()
226 				errno = EINVAL;  in getsockopt()
234 				errno = EINVAL;  in getsockopt()
243 				errno = EINVAL;  in getsockopt()
246 			errno = ENOPROTOOPT;  in getsockopt()
256 			errno = ENOPROTOOPT;  in getsockopt()
262 		errno = ENOPROTOOPT;  in getsockopt()
266 	if (errno != 0)  in getsockopt()
309 	errno = 0;  in setsockopt()
310 	if ((i = so_check_fd(s, &errno)) == -1)  in setsockopt()
320 				errno = EINVAL;  in setsockopt()
330 				errno = EINVAL;  in setsockopt()
340 				errno = EINVAL;  in setsockopt()
351 				errno = EINVAL;  in setsockopt()
362 				errno = EINVAL;  in setsockopt()
372 				errno = EINVAL;  in setsockopt()
376 			errno = ENOPROTOOPT;  in setsockopt()
385 			errno = ENOPROTOOPT;  in setsockopt()
391 		errno = ENOPROTOOPT;  in setsockopt()
395 	if (errno != 0)  in setsockopt()
412 	errno = 0;  in shutdown()
413 	if ((sock_id = so_check_fd(s, &errno)) == -1)  in shutdown()
418 		errno = EOPNOTSUPP;  in shutdown()
423 		errno = ENOTCONN;  in shutdown()
438 		errno = EINVAL;  in shutdown()
462 		errno = EINVAL;  in shutdown()
477 	errno = 0;  in socket_close()
478 	if ((sock_id = so_check_fd(s, &errno)) == -1)  in socket_close()
528 		if (n == -1 && errno == EWOULDBLOCK) {  in socket_read()
531 				errno = EINTR;  in socket_read()
568 					errno = EADDRINUSE;  in bind_check()
583 	errno = 0;  in bind()
585 	if ((i = so_check_fd(s, &errno)) == -1)  in bind()
598 		errno = EINVAL;  in bind()
602 		errno = EAFNOSUPPORT;  in bind()
611 		errno = EINVAL;	/* already bound */  in bind()
615 	if (errno != 0) {  in bind()
654 	errno = 0;  in quickbind()
676 	errno = 0;  in listen()
677 	if ((sock_id = so_check_fd(fd, &errno)) == -1)  in listen()
681 		errno = EOPNOTSUPP;  in listen()
685 		errno = sockets[sock_id].so_error;  in listen()
697 	errno = 0;  in accept()
698 	if ((sock_id = so_check_fd(fd, &errno)) == -1)  in accept()
702 		errno = EOPNOTSUPP;  in accept()
706 		errno = sockets[sock_id].so_error;  in accept()
711 	sock_id = so_check_fd(new_sd, &errno);  in accept()
722 	errno = 0;  in connect()
723 	if ((sock_id = so_check_fd(fd, &errno)) == -1)  in connect()
729 		errno = EINVAL;  in connect()
734 		errno = EPROTONOSUPPORT;  in connect()
739 		errno = EINVAL;  in connect()
744 		errno = sockets[sock_id].so_error;  in connect()
756 				errno = EADDRNOTAVAIL;  in connect()
771 				errno = sockets[sock_id].so_error;  in connect()
804 	errno = 0;  in recvfrom()
806 	if ((sock_id = so_check_fd(s, &errno)) == -1) {  in recvfrom()
807 		errno = EINVAL;  in recvfrom()
813 		errno = ENOTCONN;  in recvfrom()
818 		errno = EINVAL;  in recvfrom()
823 		errno = EINVAL;  in recvfrom()
834 						errno =  in recvfrom()
870 				errno = sockets[sock_id].so_error;  in recvfrom()
881 		errno = EWOULDBLOCK;  in recvfrom()
999 	errno = 0;  in sendto()
1001 	if ((sock_id = so_check_fd(s, &errno)) == -1) {  in sendto()
1005 		errno = EINVAL;  in sendto()
1010 		errno = EINVAL;  in sendto()
1014 		errno = sockets[sock_id].so_error;  in sendto()
1018 		errno = EAFNOSUPPORT;  in sendto()
1027 			errno = EINVAL;  in sendto()
1035 			errno = EINVAL;  in sendto()
1039 			errno = EPIPE;  in sendto()
1046 		errno = EPROTOTYPE;  in sendto()
1105 		errno = ENOMEM;  in dgram_sendto()
1116 				if (errno == 0)  in dgram_sendto()
1117 					errno = EIO;  in dgram_sendto()
1143 			errno = sockets[i].so_error;  in stream_sendto()