2584 start_charshunt(ifd, ofd)  in start_charshunt()  argument
2585     int ifd, ofd;  in start_charshunt()
2604 	charshunt(ifd, ofd, record_file);
2638 charshunt(ifd, ofd, record_file)  in charshunt()  argument
2639     int ifd, ofd;  in charshunt()
2716     if (ofd != ifd) {
2717 	flags = fcntl(ofd, F_GETFL);
2719 	    || fcntl(ofd, F_SETFL, flags | O_NONBLOCK) == -1)
2735     nfds = (ofd > pty_master? ofd: pty_master) + 1;
2746     while (nibuf != 0 || nobuf != 0 || ofd >= 0 || pty_master >= 0) {
2762 	    else if (ofd >= 0)
2763 		FD_SET(ofd, &writey);
2766 	    if (pty_master >= 0 && ofd >= 0)
2817 	if (ofd >= 0 && pty_master >= 0 && FD_ISSET(pty_master, &ready)) {
2822 	    if (nobuf < 0 || ofd == -1) {
2831 		(void) close(ofd);
2832 		ofd = -1;
2838 		FD_SET(ofd, &writey);
2845 	if (ofd == -1)
2847 	else if (FD_ISSET(ofd, &writey)) {
2851 	    n = write(ofd, obufp, n);
2854 		    (void) close(ofd);
2855 		    ofd = -1;