OpenCoverage

sshtty.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/openssh/src/sshtty.c
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1/* $OpenBSD: sshtty.c,v 1.14 2010/01/09 05:04:24 djm Exp $ */-
2/*-
3 * Author: Tatu Ylonen <ylo@cs.hut.fi>-
4 * Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland-
5 * All rights reserved-
6 *-
7 * As far as I am concerned, the code I have written for this software-
8 * can be used freely for any purpose. Any derived versions of this-
9 * software must be clearly marked as such, and if the derived work is-
10 * incompatible with the protocol description in the RFC file, it must be-
11 * called by a name other than "ssh" or "Secure Shell".-
12 */-
13/*-
14 * Copyright (c) 2001 Markus Friedl. All rights reserved.-
15 * Copyright (c) 2001 Kevin Steves. All rights reserved.-
16 *-
17 * Redistribution and use in source and binary forms, with or without-
18 * modification, are permitted provided that the following conditions-
19 * are met:-
20 * 1. Redistributions of source code must retain the above copyright-
21 * notice, this list of conditions and the following disclaimer.-
22 * 2. Redistributions in binary form must reproduce the above copyright-
23 * notice, this list of conditions and the following disclaimer in the-
24 * documentation and/or other materials provided with the distribution.-
25 *-
26 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR-
27 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES-
28 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.-
29 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,-
30 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT-
31 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,-
32 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY-
33 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT-
34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF-
35 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.-
36 */-
37-
38#include "includes.h"-
39-
40#include <sys/types.h>-
41#include <stdio.h>-
42#include <termios.h>-
43#include <pwd.h>-
44-
45#include "sshpty.h"-
46-
47static struct termios _saved_tio;-
48static int _in_raw_mode = 0;-
49-
50struct termios *-
51get_saved_tio(void)-
52{-
53 return _in_raw_mode ? &_saved_tio : NULL;
never executed: return _in_raw_mode ? &_saved_tio : ((void *)0) ;
_in_raw_modeDescription
TRUEnever evaluated
FALSEnever evaluated
0
54}-
55-
56void-
57leave_raw_mode(int quiet)-
58{-
59 if (!_in_raw_mode)
!_in_raw_modeDescription
TRUEnever evaluated
FALSEnever evaluated
0
60 return;
never executed: return;
0
61 if (tcsetattr(fileno(stdin), TCSADRAIN, &_saved_tio) == -1) {
tcsetattr(file...ved_tio) == -1Description
TRUEnever evaluated
FALSEnever evaluated
0
62 if (!quiet)
!quietDescription
TRUEnever evaluated
FALSEnever evaluated
0
63 perror("tcsetattr");
never executed: perror("tcsetattr");
0
64 } else
never executed: end of block
0
65 _in_raw_mode = 0;
never executed: _in_raw_mode = 0;
0
66}-
67-
68void-
69enter_raw_mode(int quiet)-
70{-
71 struct termios tio;-
72-
73 if (tcgetattr(fileno(stdin), &tio) == -1) {
tcgetattr(file...), &tio) == -1Description
TRUEnever evaluated
FALSEnever evaluated
0
74 if (!quiet)
!quietDescription
TRUEnever evaluated
FALSEnever evaluated
0
75 perror("tcgetattr");
never executed: perror("tcgetattr");
0
76 return;
never executed: return;
0
77 }-
78 _saved_tio = tio;-
79 tio.c_iflag |= IGNPAR;-
80 tio.c_iflag &= ~(ISTRIP | INLCR | IGNCR | ICRNL | IXON | IXANY | IXOFF);-
81#ifdef IUCLC-
82 tio.c_iflag &= ~IUCLC;-
83#endif-
84 tio.c_lflag &= ~(ISIG | ICANON | ECHO | ECHOE | ECHOK | ECHONL);-
85#ifdef IEXTEN-
86 tio.c_lflag &= ~IEXTEN;-
87#endif-
88 tio.c_oflag &= ~OPOST;-
89 tio.c_cc[VMIN] = 1;-
90 tio.c_cc[VTIME] = 0;-
91 if (tcsetattr(fileno(stdin), TCSADRAIN, &tio) == -1) {
tcsetattr(file... , &tio) == -1Description
TRUEnever evaluated
FALSEnever evaluated
0
92 if (!quiet)
!quietDescription
TRUEnever evaluated
FALSEnever evaluated
0
93 perror("tcsetattr");
never executed: perror("tcsetattr");
0
94 } else
never executed: end of block
0
95 _in_raw_mode = 1;
never executed: _in_raw_mode = 1;
0
96}-
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