98 lines
3.0 KiB
C
98 lines
3.0 KiB
C
|
/* $NetBSD: sshtty.c,v 1.1.1.1 2001/05/15 15:02:41 itojun Exp $ */
|
||
|
|
/* $OpenBSD: sshtty.c,v 1.1 2001/04/14 16:33:20 stevesk Exp $ */
|
||
|
|
/*
|
||
|
|
* Author: Tatu Ylonen <ylo@cs.hut.fi>
|
||
|
|
* Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
|
||
|
|
* All rights reserved
|
||
|
|
*
|
||
|
|
* As far as I am concerned, the code I have written for this software
|
||
|
|
* can be used freely for any purpose. Any derived versions of this
|
||
|
|
* software must be clearly marked as such, and if the derived work is
|
||
|
|
* incompatible with the protocol description in the RFC file, it must be
|
||
|
|
* called by a name other than "ssh" or "Secure Shell".
|
||
|
|
*/
|
||
|
|
/*
|
||
|
|
* Copyright (c) 2001 Markus Friedl. All rights reserved.
|
||
|
|
* Copyright (c) 2001 Kevin Steves. All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||
|
|
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||
|
|
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||
|
|
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||
|
|
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||
|
|
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||
|
|
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "includes.h"
|
||
|
|
|
||
|
|
#include "sshtty.h"
|
||
|
|
#include "log.h"
|
||
|
|
|
||
|
|
static struct termios _saved_tio;
|
||
|
|
static int _in_raw_mode = 0;
|
||
|
|
|
||
|
|
int
|
||
|
|
in_raw_mode(void)
|
||
|
|
{
|
||
|
|
return _in_raw_mode;
|
||
|
|
}
|
||
|
|
|
||
|
|
struct termios
|
||
|
|
get_saved_tio(void)
|
||
|
|
{
|
||
|
|
return _saved_tio;
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
leave_raw_mode(void)
|
||
|
|
{
|
||
|
|
if (!_in_raw_mode)
|
||
|
|
return;
|
||
|
|
if (tcsetattr(fileno(stdin), TCSADRAIN, &_saved_tio) == -1)
|
||
|
|
perror("tcsetattr");
|
||
|
|
else
|
||
|
|
_in_raw_mode = 0;
|
||
|
|
|
||
|
|
fatal_remove_cleanup((void (*) (void *)) leave_raw_mode, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
enter_raw_mode(void)
|
||
|
|
{
|
||
|
|
struct termios tio;
|
||
|
|
|
||
|
|
if (tcgetattr(fileno(stdin), &tio) == -1) {
|
||
|
|
perror("tcgetattr");
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
_saved_tio = tio;
|
||
|
|
tio.c_iflag |= IGNPAR;
|
||
|
|
tio.c_iflag &= ~(ISTRIP | INLCR | IGNCR | ICRNL | IXON | IXANY | IXOFF);
|
||
|
|
tio.c_lflag &= ~(ISIG | ICANON | ECHO | ECHOE | ECHOK | ECHONL);
|
||
|
|
#ifdef IEXTEN
|
||
|
|
tio.c_lflag &= ~IEXTEN;
|
||
|
|
#endif
|
||
|
|
tio.c_oflag &= ~OPOST;
|
||
|
|
tio.c_cc[VMIN] = 1;
|
||
|
|
tio.c_cc[VTIME] = 0;
|
||
|
|
if (tcsetattr(fileno(stdin), TCSADRAIN, &tio) == -1)
|
||
|
|
perror("tcsetattr");
|
||
|
|
else
|
||
|
|
_in_raw_mode = 1;
|
||
|
|
|
||
|
|
fatal_add_cleanup((void (*) (void *)) leave_raw_mode, NULL);
|
||
|
|
}
|