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7b628035 | 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" | |
1d3e026f | 38 | RCSID("$OpenBSD: sshtty.c,v 1.7 2006/02/07 01:42:00 stevesk Exp $"); |
39 | ||
40 | #include <termios.h> | |
7b628035 | 41 | |
07d80252 | 42 | #include "sshpty.h" |
7b628035 | 43 | #include "log.h" |
44 | ||
45 | static struct termios _saved_tio; | |
46 | static int _in_raw_mode = 0; | |
47 | ||
7b628035 | 48 | struct termios |
49 | get_saved_tio(void) | |
50 | { | |
51 | return _saved_tio; | |
52 | } | |
53 | ||
54 | void | |
55 | leave_raw_mode(void) | |
56 | { | |
57 | if (!_in_raw_mode) | |
58 | return; | |
59 | if (tcsetattr(fileno(stdin), TCSADRAIN, &_saved_tio) == -1) | |
60 | perror("tcsetattr"); | |
61 | else | |
62 | _in_raw_mode = 0; | |
7b628035 | 63 | } |
64 | ||
65 | void | |
66 | enter_raw_mode(void) | |
67 | { | |
68 | struct termios tio; | |
69 | ||
70 | if (tcgetattr(fileno(stdin), &tio) == -1) { | |
71 | perror("tcgetattr"); | |
72 | return; | |
73 | } | |
74 | _saved_tio = tio; | |
75 | tio.c_iflag |= IGNPAR; | |
76 | tio.c_iflag &= ~(ISTRIP | INLCR | IGNCR | ICRNL | IXON | IXANY | IXOFF); | |
145d23ca | 77 | #ifdef IUCLC |
78 | tio.c_iflag &= ~IUCLC; | |
79 | #endif | |
7b628035 | 80 | tio.c_lflag &= ~(ISIG | ICANON | ECHO | ECHOE | ECHOK | ECHONL); |
81 | #ifdef IEXTEN | |
82 | tio.c_lflag &= ~IEXTEN; | |
83 | #endif | |
84 | tio.c_oflag &= ~OPOST; | |
85 | tio.c_cc[VMIN] = 1; | |
86 | tio.c_cc[VTIME] = 0; | |
87 | if (tcsetattr(fileno(stdin), TCSADRAIN, &tio) == -1) | |
88 | perror("tcsetattr"); | |
89 | else | |
90 | _in_raw_mode = 1; | |
7b628035 | 91 | } |