926 start_charshunt(ifd, ofd)  in start_charshunt()  argument
927     int ifd, ofd;  in start_charshunt()
931     cpid = safe_fork(ifd, ofd, (log_to_fd >= 0? log_to_fd: 2));
978 charshunt(ifd, ofd, record_file)  in charshunt()  argument
979     int ifd, ofd;  in charshunt()
1041     if (ifd >= FD_SETSIZE || ofd >= FD_SETSIZE || pty_master >= FD_SETSIZE)
1043 	      ifd, ofd, pty_master);
1059     flags = fcntl(ifd, F_GETFL);
1061 	|| fcntl(ifd, F_SETFL, flags | O_NONBLOCK) == -1)
1062 	warn("couldn't set %s to nonblock: %m", (ifd==0? "stdin": "tty"));
1063     if (ofd != ifd) {
1106 	    FD_SET(ifd, &ready);
1133 	if (FD_ISSET(ifd, &ready)) {
1135 	    nibuf = read(ifd, ibufp, PPP_MRU + PPP_HDRLEN);