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- /* Copyright (C) 1991, 1992 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If
- not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- #include <ansidecl.h>
- #include <errno.h>
- #include <stddef.h>
- #include <termios.h>
- #include <unistd.h>
- #include "bsdtty.h"
- #include <sys/file.h>
-
- /* Flush pending data on FD. */
- int
- DEFUN(tcflush, (fd, queue_selector), int fd AND int queue_selector)
- {
- int arg;
-
- switch (queue_selector)
- {
- case TCIFLUSH:
- arg = FREAD;
- break;
- case TCOFLUSH:
- arg = FWRITE;
- break;
- case TCIOFLUSH:
- arg = FREAD | FWRITE;
- break;
- default:
- errno = EINVAL;
- return -1;
- }
-
- return __ioctl (fd, TIOCFLUSH, (PTR) &arg);
- }
-