/* include readable_conn1 */#include	"icmpd.h"intreadable_conn(int i){	int				unixfd, recvfd;	char			c;	ssize_t			n;	socklen_t		len;	union {	  char				buf[MAXSOCKADDR];	  struct sockaddr	sock;	} un;	unixfd = client[i].connfd;	recvfd = -1;	if ( (n = Read_fd(unixfd, &c, 1, &recvfd)) == 0) {		err_msg("client %d terminated, recvfd = %d", i, recvfd);		goto clientdone;	/* client probably terminated */	}		/* 4data from client; should be descriptor */	if (recvfd < 0) {		err_msg("read_fd did not return descriptor");		goto clienterr;	}/* end readable_conn1 *//* include readable_conn2 */	len = sizeof(un.buf);	if (getsockname(recvfd, (SA *) un.buf, &len) < 0) {		err_ret("getsockname error");		goto clienterr;	}	client[i].family = un.sock.sa_family;	if ( (client[i].lport = sock_get_port(&un.sock, len)) == 0) {		client[i].lport = sock_bind_wild(recvfd, client[i].family);		if (client[i].lport <= 0) {			err_ret("error binding ephemeral port");			goto clienterr;		}	}	Write(unixfd, "1", 1);	/* tell client all OK */	FD_SET(unixfd, &allset);	if (unixfd > maxfd)		maxfd = unixfd;	if (i > maxi)		maxi = i;	Close(recvfd);			/* all done with client's UDP socket */	return(--nready);clienterr:	Write(unixfd, "0", 1);	/* tell client error occurred */clientdone:	Close(unixfd);	if (recvfd >= 0)		Close(recvfd);	FD_CLR(unixfd, &allset);	client[i].connfd = -1;	return(--nready);}/* end readable_conn2 */