7120f34ec1
. also implement some netbsd-style tty ioctls . also implement SIGINFO . also import netbsd stty . rename keymap minix CMIN (for ctrl+minus on numeric keypad) to CNMIN; to keep unchanged control character default CMIN in new <sys/ttydefaults.h> . convert CS[5678] logic in rs232 driver to explicit setting of LC bits Change-Id: I9b7d2963fe9aec00fb6e7535ef565b3191fc1c1d
80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
/* $NetBSD: tcflow.c,v 1.9 2012/06/25 22:32:46 abs Exp $ */
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/*-
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* Copyright (c) 1989, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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#if 0
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static char sccsid[] = "@(#)termios.c 8.2 (Berkeley) 2/21/94";
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#else
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__RCSID("$NetBSD: tcflow.c,v 1.9 2012/06/25 22:32:46 abs Exp $");
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#endif
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#endif /* LIBC_SCCS and not lint */
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#include "namespace.h"
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#include <sys/ioctl.h>
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#include <assert.h>
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#include <errno.h>
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#include <termios.h>
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#include <unistd.h>
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#ifdef __weak_alias
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__weak_alias(tcflow,_tcflow)
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#endif
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int
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tcflow(int fd, int action)
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{
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struct termios term;
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u_char c;
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_DIAGASSERT(fd != -1);
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switch (action) {
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case TCOOFF:
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return (ioctl(fd, TIOCSTOP, 0));
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case TCOON:
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return (ioctl(fd, TIOCSTART, 0));
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case TCION:
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case TCIOFF:
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if (tcgetattr(fd, &term) == -1)
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return (-1);
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c = term.c_cc[action == TCIOFF ? VSTOP : VSTART];
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if (c != _POSIX_VDISABLE && write(fd, &c, sizeof(c)) == -1)
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return (-1);
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return (0);
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default:
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errno = EINVAL;
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return (-1);
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}
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/* NOTREACHED */
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}
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