3 * discard.c -- discard output on a file pointer
5 * This code is Copyright (c) 2002, by the authors of nmh. See the
6 * COPYRIGHT file in the root directory of the nmh distribution for
7 * complete copyright information.
26 # define _filbuf(fp) ((fp)->__cnt = 0, __filbuf(fp))
33 #ifndef HAVE_TERMIOS_H
45 tcflush (fileno(io), TCOFLUSH);
48 if (ioctl (fileno(io), TCGETA, &tio) != -1)
49 ioctl (fileno(io), TCSETA, &tio);
51 if (ioctl (fileno(io), TIOCGETP, (char *) &tio) != -1)
52 ioctl (fileno(io), TIOCSETP, (char *) &tio);
56 #if defined(_FSTDIO) || defined(__DragonFly__)
60 io->_IO_write_ptr = io->_IO_write_base;
62 if ((io->_ptr = io->_base))