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ce7f605ba7
Tue Oct 8 13:58:31 1996 Thomas Bushnell, n/BSG <thomas@gnu.ai.mit.edu> * hurd/ports-get.c (_hurd_ports_get): If the requested port is null, don't attempt mach_port_mod_refs.
52 lines
1.4 KiB
C
52 lines
1.4 KiB
C
/* Copyright (C) 1991, 1992, 1996 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If
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not, write to the Free Software Foundation, Inc., 675 Mass Ave,
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Cambridge, MA 02139, USA. */
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#include <errno.h>
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#include <stddef.h>
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#include <termios.h>
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#include <unistd.h>
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#include "bsdtty.h"
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#include <sys/file.h>
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/* Flush pending data on FD. */
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int
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tcflush (fd, queue_selector)
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int fd;
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int queue_selector;
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{
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int arg;
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switch (queue_selector)
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{
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case TCIFLUSH:
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arg = FREAD;
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break;
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case TCOFLUSH:
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arg = FWRITE;
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break;
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case TCIOFLUSH:
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arg = FREAD | FWRITE;
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break;
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default:
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__set_errno (EINVAL);
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return -1;
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}
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return __ioctl (fd, TIOCFLUSH, (void *) &arg);
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}
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