224 channel_register_fds(Channel *c, int rfd, int wfd, int efd,  in channel_register_fds()  argument
229 	channel_max_fd = MAX(channel_max_fd, wfd);  in channel_register_fds()
234 	if (wfd != -1 && wfd != rfd)  in channel_register_fds()
235 		fcntl(wfd, F_SETFD, FD_CLOEXEC);  in channel_register_fds()
236 	if (efd != -1 && efd != rfd && efd != wfd)  in channel_register_fds()
240 	c->wfd = wfd;  in channel_register_fds()
241 	c->sock = (rfd == wfd) ? rfd : -1;  in channel_register_fds()
247 	c->wfd_isatty = is_tty || isatty(c->wfd);  in channel_register_fds()
253 		if (wfd != -1)  in channel_register_fds()
254 			set_nonblock(wfd);  in channel_register_fds()
265 channel_new(char *ctype, int type, int rfd, int wfd, int efd,  in channel_new()  argument
308 	channel_register_fds(c, rfd, wfd, efd, extusage, nonblock, 0);  in channel_new()
351 			max = MAX(max, c->wfd);  in channel_find_maxfd()
378 	channel_close_fd(&c->wfd);  in channel_close_fds()
638 			    c->rfd, c->wfd, c->ctl_chan);  in channel_open_message()
759 channel_set_fds(int id, int rfd, int wfd, int efd,  in channel_set_fds()  argument
766 	channel_register_fds(c, rfd, wfd, efd, extusage, nonblock, is_tty);  in channel_set_fds()
824 			FD_SET(c->wfd, writeset);  in channel_pre_open()
1006 			FD_SET(c->wfd, writeset);  in channel_pre_mux_client()
1563 				c->sock = c->rfd = c->wfd = sock;  in channel_post_connecting()
1648 	if (c->wfd != -1 &&
1649 	    FD_ISSET(c->wfd, writeset) &&
1670 			len = write(c->wfd, buf, dlen);
1690 		len = write(c->wfd, buf, dlen);
1710 			if (tcgetattr(c->wfd, &tio) == 0 &&
1874 	if (c->wfd != -1 && FD_ISSET(c->wfd, writeset) &&
1876 		len = write(c->wfd, buffer_ptr(&c->output),