261 channel_register_fds(Channel *c, int rfd, int wfd, int efd,  in channel_register_fds()  argument
265 	channel_max_fd = MAXIMUM(channel_max_fd, rfd);  in channel_register_fds()
269 	if (rfd != -1)  in channel_register_fds()
270 		fcntl(rfd, F_SETFD, FD_CLOEXEC);  in channel_register_fds()
271 	if (wfd != -1 && wfd != rfd)  in channel_register_fds()
273 	if (efd != -1 && efd != rfd && efd != wfd)  in channel_register_fds()
276 	c->rfd = rfd;  in channel_register_fds()
278 	c->sock = (rfd == wfd) ? rfd : -1;  in channel_register_fds()
283 		debug2("channel %d: rfd %d isatty", c->self, c->rfd);  in channel_register_fds()
291 		if (rfd != -1)  in channel_register_fds()
292 			set_nonblock(rfd);  in channel_register_fds()
305 channel_new(char *ctype, int type, int rfd, int wfd, int efd,  in channel_new()  argument
350 	channel_register_fds(c, rfd, wfd, efd, extusage, nonblock, 0);  in channel_new()
393 			max = MAXIMUM(max, c->rfd);  in channel_find_maxfd()
420 	channel_close_fd(&c->rfd);  in channel_close_fds()
734 			    c->rfd, c->wfd, c->ctl_chan);  in channel_open_message()
855 channel_set_fds(int id, int rfd, int wfd, int efd,  in channel_set_fds()  argument
862 	channel_register_fds(c, rfd, wfd, efd, extusage, nonblock, is_tty);  in channel_set_fds()
916 		FD_SET(c->rfd, readset);  in channel_pre_open()
1098 		FD_SET(c->rfd, readset);  in channel_pre_mux_client()
1700 				c->sock = c->rfd = c->wfd = sock;  in channel_post_connecting()
1734 	if (c->rfd != -1 && (force || FD_ISSET(c->rfd, readset))) {
1736 		len = read(c->rfd, buf, sizeof(buf));
1747 			    c->self, c->rfd, len);
1962 		len = read(c->rfd, buf, MINIMUM(rlen, CHAN_RBUF));
1967 			    c->self, c->rfd, len);
1985 	if (c->rfd != -1 && !c->mux_pause && FD_ISSET(c->rfd, readset) &&
4230 		if (ioctl(channels[i]->rfd, TIOCGWINSZ, &ws) < 0)