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3c0ef626 | 1 | /* |
2 | * Author: Tatu Ylonen <ylo@cs.hut.fi> | |
3 | * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland | |
4 | * All rights reserved | |
5 | * | |
6 | * As far as I am concerned, the code I have written for this software | |
7 | * can be used freely for any purpose. Any derived versions of this | |
8 | * software must be clearly marked as such, and if the derived work is | |
9 | * incompatible with the protocol description in the RFC file, it must be | |
10 | * called by a name other than "ssh" or "Secure Shell". | |
11 | */ | |
12 | /* | |
13 | * Copyright (c) 2001 Markus Friedl. All rights reserved. | |
14 | * Copyright (c) 2001 Kevin Steves. All rights reserved. | |
15 | * | |
16 | * Redistribution and use in source and binary forms, with or without | |
17 | * modification, are permitted provided that the following conditions | |
18 | * are met: | |
19 | * 1. Redistributions of source code must retain the above copyright | |
20 | * notice, this list of conditions and the following disclaimer. | |
21 | * 2. Redistributions in binary form must reproduce the above copyright | |
22 | * notice, this list of conditions and the following disclaimer in the | |
23 | * documentation and/or other materials provided with the distribution. | |
24 | * | |
25 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
26 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
27 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
28 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
29 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
30 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
31 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
32 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
33 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
34 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
35 | */ | |
36 | ||
37 | #include "includes.h" | |
416fd2a8 | 38 | RCSID("$OpenBSD: sshtty.c,v 1.5 2003/09/19 17:43:35 markus Exp $"); |
3c0ef626 | 39 | |
40 | #include "sshtty.h" | |
41 | #include "log.h" | |
42 | ||
43 | static struct termios _saved_tio; | |
44 | static int _in_raw_mode = 0; | |
45 | ||
3c0ef626 | 46 | struct termios |
47 | get_saved_tio(void) | |
48 | { | |
49 | return _saved_tio; | |
50 | } | |
51 | ||
52 | void | |
53 | leave_raw_mode(void) | |
54 | { | |
55 | if (!_in_raw_mode) | |
56 | return; | |
57 | if (tcsetattr(fileno(stdin), TCSADRAIN, &_saved_tio) == -1) | |
58 | perror("tcsetattr"); | |
59 | else | |
60 | _in_raw_mode = 0; | |
3c0ef626 | 61 | } |
62 | ||
63 | void | |
64 | enter_raw_mode(void) | |
65 | { | |
66 | struct termios tio; | |
67 | ||
68 | if (tcgetattr(fileno(stdin), &tio) == -1) { | |
69 | perror("tcgetattr"); | |
70 | return; | |
71 | } | |
72 | _saved_tio = tio; | |
73 | tio.c_iflag |= IGNPAR; | |
74 | tio.c_iflag &= ~(ISTRIP | INLCR | IGNCR | ICRNL | IXON | IXANY | IXOFF); | |
70791e56 | 75 | #ifdef IUCLC |
76 | tio.c_iflag &= ~IUCLC; | |
77 | #endif | |
3c0ef626 | 78 | tio.c_lflag &= ~(ISIG | ICANON | ECHO | ECHOE | ECHOK | ECHONL); |
79 | #ifdef IEXTEN | |
80 | tio.c_lflag &= ~IEXTEN; | |
81 | #endif | |
82 | tio.c_oflag &= ~OPOST; | |
83 | tio.c_cc[VMIN] = 1; | |
84 | tio.c_cc[VTIME] = 0; | |
85 | if (tcsetattr(fileno(stdin), TCSADRAIN, &tio) == -1) | |
86 | perror("tcsetattr"); | |
87 | else | |
88 | _in_raw_mode = 1; | |
3c0ef626 | 89 | } |