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1 | // This file is part of libptytty. Do not make local modifications. |
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2 | // http://software.schmorp.de/pkg/libptytty |
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3 | |
1 | /*--------------------------------*-C-*---------------------------------* |
4 | /*----------------------------------------------------------------------* |
2 | * File: ptytty.C |
5 | * File: ptytty.C |
3 | *----------------------------------------------------------------------* |
6 | *----------------------------------------------------------------------* |
4 | * |
7 | * |
5 | * All portions of code are copyright by their respective author/s. |
8 | * All portions of code are copyright by their respective author/s. |
6 | * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com> |
9 | * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com> |
7 | * Copyright (c) 2004 Marc Lehmann <pcg@goof.com> |
10 | * Copyright (c) 2004-2006 Marc Lehmann <pcg@goof.com> |
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11 | * Copyright (c) 2006 Emanuele Giaquinta <e.giaquinta@glauco.it> |
8 | * |
12 | * |
9 | * This program is free software; you can redistribute it and/or modify |
13 | * This program is free software; you can redistribute it and/or modify |
10 | * it under the terms of the GNU General Public License as published by |
14 | * it under the terms of the GNU General Public License as published by |
11 | * the Free Software Foundation; either version 2 of the License, or |
15 | * the Free Software Foundation; either version 2 of the License, or |
12 | * (at your option) any later version. |
16 | * (at your option) any later version. |
… | |
… | |
19 | * You should have received a copy of the GNU General Public License |
23 | * You should have received a copy of the GNU General Public License |
20 | * along with this program; if not, write to the Free Software |
24 | * along with this program; if not, write to the Free Software |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
25 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
22 | *---------------------------------------------------------------------*/ |
26 | *---------------------------------------------------------------------*/ |
23 | |
27 | |
24 | #include "../config.h" /* NECESSARY */ |
28 | #include "../config.h" |
25 | |
29 | |
26 | /* |
30 | #include "ptytty.h" |
27 | * Try to be self-contained except for the above autoconfig'd defines |
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28 | */ |
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29 | |
31 | |
30 | #if 0 |
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31 | #ifdef HAVE_GETPT |
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32 | # define _GNU_SOURCE |
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33 | #endif |
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34 | #endif |
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35 | |
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36 | #include <cstdio> |
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37 | #ifdef HAVE_STDLIB_H |
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38 | # include <cstdlib> |
32 | #include <cstdlib> |
39 | #endif |
33 | #include <cstring> |
40 | #ifdef HAVE_SYS_TYPES_H |
34 | #include <csignal> |
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35 | |
41 | # include <sys/types.h> |
36 | #include <sys/types.h> |
42 | #endif |
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43 | #ifdef HAVE_UNISTD_H |
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44 | # include <unistd.h> |
37 | #include <unistd.h> |
45 | #endif |
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46 | #if defined(HAVE_STRING_H) |
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47 | # include <cstring> |
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48 | #endif |
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49 | #ifdef HAVE_FCNTL_H |
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50 | # include <fcntl.h> |
38 | #include <fcntl.h> |
51 | #endif |
39 | |
52 | #ifdef HAVE_SYS_IOCTL_H |
40 | #ifdef HAVE_SYS_IOCTL_H |
53 | # include <sys/ioctl.h> |
41 | # include <sys/ioctl.h> |
54 | #endif |
42 | #endif |
55 | #if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H) |
43 | #if defined(HAVE_DEV_PTMX) && defined(HAVE_SYS_STROPTS_H) |
56 | # include <sys/stropts.h> /* for I_PUSH */ |
44 | # include <sys/stropts.h> /* for I_PUSH */ |
57 | #endif |
45 | #endif |
58 | #ifdef HAVE_ISASTREAM |
46 | #ifdef HAVE_ISASTREAM |
59 | # include <stropts.h> |
47 | # include <stropts.h> |
60 | #endif |
48 | #endif |
61 | |
49 | #if defined(HAVE_PTY_H) |
62 | #ifdef DEBUG_TTY |
50 | # include <pty.h> |
63 | # define D_TTY(x) fprintf x ; fputc('\n', stderr) ; fflush(stderr) |
51 | #elif defined(HAVE_LIBUTIL_H) |
64 | #else |
52 | # include <libutil.h> |
65 | # define D_TTY(x) |
53 | #elif defined(HAVE_UTIL_H) |
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54 | # include <util.h> |
66 | #endif |
55 | #endif |
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56 | #ifdef TTY_GID_SUPPORT |
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57 | #include <grp.h> |
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58 | #endif |
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59 | |
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60 | #include <cstdio> |
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61 | |
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62 | ///////////////////////////////////////////////////////////////////////////// |
67 | |
63 | |
68 | /* ------------------------------------------------------------------------- * |
64 | /* ------------------------------------------------------------------------- * |
69 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
65 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
70 | * ------------------------------------------------------------------------- */ |
66 | * ------------------------------------------------------------------------- */ |
71 | /* |
67 | /* |
72 | * Returns pty file descriptor, or -1 on failure |
68 | * Returns pty file descriptor, or -1 on failure |
73 | * If successful, ttydev is set to the name of the slave device. |
69 | * If successful, ttydev is set to the name of the slave device. |
74 | * fd_tty _may_ also be set to an open fd to the slave device |
70 | * fd_tty _may_ also be set to an open fd to the slave device |
75 | */ |
71 | */ |
76 | /* EXTPROTO */ |
72 | #if defined(UNIX98_PTY) |
77 | int |
73 | |
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74 | static int |
78 | rxvt_get_pty (int *fd_tty, const char **ttydev) |
75 | get_pty (int *fd_tty, char **ttydev) |
79 | { |
76 | { |
80 | int pfd; |
77 | int pfd; |
81 | |
78 | |
82 | #ifdef PTYS_ARE_OPENPTY |
79 | # if defined(HAVE_GETPT) |
83 | |
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84 | char tty_name[sizeof "/dev/pts/????\0"]; |
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85 | |
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86 | if (openpty (&pfd, fd_tty, tty_name, NULL, NULL) != -1) |
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87 | { |
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88 | *ttydev = strdup (tty_name); |
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89 | return pfd; |
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90 | } |
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91 | #endif |
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92 | |
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93 | #ifdef PTYS_ARE__GETPTY |
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94 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
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95 | if (*ttydev != NULL) |
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96 | return pfd; |
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97 | #endif |
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98 | |
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99 | #ifdef PTYS_ARE_GETPTY |
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100 | |
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101 | char *ptydev; |
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102 | |
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103 | while ((ptydev = getpty ()) != NULL) |
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104 | if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0) |
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105 | { |
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106 | *ttydev = ptydev; |
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107 | return pfd; |
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108 | } |
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109 | #endif |
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110 | |
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111 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
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112 | # if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX) |
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113 | |
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114 | { |
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115 | # ifdef PTYS_ARE_GETPT |
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116 | pfd = getpt (); |
80 | pfd = getpt(); |
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81 | # elif defined(HAVE_POSIX_OPENPT) |
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82 | pfd = posix_openpt (O_RDWR); |
117 | # else |
83 | # else |
118 | |
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119 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
84 | pfd = open (CLONE_DEVICE, O_RDWR | O_NOCTTY, 0); |
120 | # endif |
85 | # endif |
121 | |
86 | |
122 | if (pfd >= 0) |
87 | if (pfd >= 0) |
123 | { |
88 | { |
124 | if (grantpt (pfd) == 0 /* change slave permissions */ |
89 | if (grantpt (pfd) == 0 /* change slave permissions */ |
125 | && unlockpt (pfd) == 0) |
90 | && unlockpt (pfd) == 0) |
126 | { /* slave now unlocked */ |
91 | { /* slave now unlocked */ |
127 | *ttydev = ptsname (pfd); /* get slave's name */ |
92 | *ttydev = strdup (ptsname (pfd)); /* get slave's name */ |
128 | return pfd; |
93 | return pfd; |
129 | } |
94 | } |
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95 | |
130 | close (pfd); |
96 | close (pfd); |
131 | } |
97 | } |
132 | } |
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133 | # endif |
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134 | #endif |
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135 | |
98 | |
136 | #ifdef PTYS_ARE_PTC |
99 | return -1; |
137 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
100 | } |
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101 | |
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102 | #elif defined(HAVE_OPENPTY) |
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103 | |
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104 | static int |
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105 | get_pty (int *fd_tty, char **ttydev) |
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106 | { |
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107 | int pfd; |
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108 | int res; |
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109 | char tty_name[32]; |
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110 | |
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111 | res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); |
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112 | |
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113 | if (res != -1) |
138 | { |
114 | { |
139 | *ttydev = ttyname (pfd); |
115 | *ttydev = strdup (tty_name); |
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116 | return pfd; |
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117 | } |
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118 | |
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119 | return -1; |
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120 | } |
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121 | |
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122 | #elif defined(HAVE__GETPTY) |
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123 | |
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124 | static int |
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125 | get_pty (int *fd_tty, char **ttydev) |
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126 | { |
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127 | int pfd; |
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128 | |
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129 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
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130 | |
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131 | if (*ttydev != NULL) |
140 | return pfd; |
132 | return pfd; |
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133 | |
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134 | return -1; |
141 | } |
135 | } |
142 | #endif |
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143 | |
136 | |
144 | #ifdef PTYS_ARE_CLONE |
137 | #elif defined(HAVE_DEV_PTC) |
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138 | |
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139 | static int |
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140 | get_pty (int *fd_tty, char **ttydev) |
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141 | { |
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142 | int pfd; |
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143 | |
145 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
144 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
146 | { |
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147 | *ttydev = ptsname (pfd); |
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148 | return pfd; |
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149 | } |
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150 | #endif |
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151 | |
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152 | #ifdef PTYS_ARE_NUMERIC |
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153 | { |
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154 | int idx; |
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155 | char *c1, *c2; |
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156 | char pty_name[] = "/dev/ptyp???"; |
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157 | char tty_name[] = "/dev/ttyp???"; |
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158 | |
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159 | c1 = & (pty_name[sizeof (pty_name) - 4]); |
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160 | c2 = & (tty_name[sizeof (tty_name) - 4]); |
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161 | for (idx = 0; idx < 256; idx++) |
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162 | { |
145 | { |
163 | sprintf (c1, "%d", idx); |
146 | *ttydev = strdup (ttyname (pfd)); |
164 | sprintf (c2, "%d", idx); |
147 | return pfd; |
165 | if (access (tty_name, F_OK) < 0) |
148 | } |
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149 | |
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150 | return -1; |
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151 | } |
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152 | |
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153 | #elif defined(HAVE_DEV_CLONE) |
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154 | |
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155 | static int |
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156 | get_pty (int *fd_tty, char **ttydev) |
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157 | { |
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158 | int pfd; |
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159 | |
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160 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
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161 | { |
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162 | *ttydev = strdup (ptsname (pfd)); |
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163 | return pfd; |
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164 | } |
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165 | |
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166 | return -1; |
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167 | } |
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168 | |
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169 | #else |
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170 | |
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171 | /* Based on the code in openssh/openbsd-compat/bsd-openpty.c */ |
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172 | static int |
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173 | get_pty (int *fd_tty, char **ttydev) |
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174 | { |
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175 | int pfd; |
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176 | int i; |
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177 | char pty_name[32]; |
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178 | char tty_name[32]; |
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179 | const char *majors = "pqrstuvwxyzabcde"; |
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180 | const char *minors = "0123456789abcdef"; |
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181 | |
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182 | for (i = 0; i < 256; i++) |
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183 | { |
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184 | snprintf(pty_name, 32, "/dev/pty%c%c", majors[i / 16], minors[i % 16]); |
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185 | snprintf(tty_name, 32, "/dev/tty%c%c", majors[i / 16], minors[i % 16]); |
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186 | |
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187 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) == -1) |
166 | { |
188 | { |
167 | idx = 256; |
189 | snprintf(pty_name, 32, "/dev/ptyp%d", i); |
168 | break; |
190 | snprintf(tty_name, 32, "/dev/ttyp%d", i); |
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191 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) == -1) |
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192 | continue; |
169 | } |
193 | } |
170 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
194 | |
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195 | if (access (tty_name, R_OK | W_OK) == 0) |
171 | { |
196 | { |
172 | if (access (tty_name, R_OK | W_OK) == 0) |
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173 | { |
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174 | *ttydev = strdup (tty_name); |
197 | *ttydev = strdup (tty_name); |
175 | return pfd; |
198 | return pfd; |
176 | } |
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177 | close (pfd); |
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178 | } |
199 | } |
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200 | |
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201 | close (pfd); |
179 | } |
202 | } |
180 | } |
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181 | #endif |
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182 | #ifdef PTYS_ARE_SEARCHED |
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183 | { |
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184 | const char *c1, *c2; |
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185 | char pty_name[] = "/dev/pty??"; |
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186 | char tty_name[] = "/dev/tty??"; |
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187 | |
203 | |
188 | # ifndef PTYCHAR1 |
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189 | # define PTYCHAR1 "pqrstuvwxyz" |
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190 | # endif |
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191 | # ifndef PTYCHAR2 |
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192 | # define PTYCHAR2 "0123456789abcdef" |
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193 | # endif |
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194 | |
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195 | for (c1 = PTYCHAR1; *c1; c1++) |
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196 | { |
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197 | pty_name[ (sizeof (pty_name) - 3)] = |
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198 | tty_name[ (sizeof (pty_name) - 3)] = *c1; |
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199 | for (c2 = PTYCHAR2; *c2; c2++) |
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200 | { |
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201 | pty_name[ (sizeof (pty_name) - 2)] = |
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202 | tty_name[ (sizeof (pty_name) - 2)] = *c2; |
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203 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
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204 | { |
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205 | if (access (tty_name, R_OK | W_OK) == 0) |
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206 | { |
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207 | *ttydev = strdup (tty_name); |
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208 | return pfd; |
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209 | } |
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210 | close (pfd); |
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211 | } |
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212 | } |
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213 | } |
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214 | } |
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215 | #endif |
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216 | return -1; |
204 | return -1; |
217 | } |
205 | } |
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206 | |
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207 | #endif |
218 | |
208 | |
219 | /*----------------------------------------------------------------------*/ |
209 | /*----------------------------------------------------------------------*/ |
220 | /* |
210 | /* |
221 | * Returns tty file descriptor, or -1 on failure |
211 | * Returns tty file descriptor, or -1 on failure |
222 | */ |
212 | */ |
223 | /* EXTPROTO */ |
213 | static int |
224 | int |
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225 | rxvt_get_tty (const char *ttydev) |
214 | get_tty (char *ttydev) |
226 | { |
215 | { |
227 | return open (ttydev, O_RDWR | O_NOCTTY, 0); |
216 | return open (ttydev, O_RDWR | O_NOCTTY, 0); |
228 | } |
217 | } |
229 | |
218 | |
230 | /*----------------------------------------------------------------------*/ |
219 | /*----------------------------------------------------------------------*/ |
231 | /* |
220 | /* |
232 | * Make our tty a controlling tty so that /dev/tty points to us |
221 | * Make our tty a controlling tty so that /dev/tty points to us |
233 | */ |
222 | */ |
234 | /* EXTPROTO */ |
223 | static int |
235 | int |
224 | control_tty (int fd_tty) |
236 | rxvt_control_tty (int fd_tty, const char *ttydev) |
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237 | { |
225 | { |
238 | #ifndef __QNX__ |
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239 | int fd; |
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240 | |
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241 | D_TTY ((stderr, "rxvt_control_tty (): pid: %d, tty fd: %d, dev: %s", getpid (), fd_tty, ttydev)); |
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242 | /* ---------------------------------------- */ |
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243 | # ifdef HAVE_SETSID |
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244 | setsid (); |
226 | setsid (); |
245 | # endif |
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246 | # if defined(HAVE_SETPGID) |
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247 | setpgid (0, 0); |
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248 | # elif defined(HAVE_SETPGRP) |
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249 | setpgrp (0, 0); |
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250 | # endif |
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251 | /* ---------------------------------------- */ |
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252 | # ifdef TIOCNOTTY |
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253 | |
227 | |
254 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
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255 | D_TTY ((stderr, "rxvt_control_tty (): Voiding tty associations: previous=%s", fd < 0 ? "no" : "yes")); |
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256 | if (fd >= 0) |
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257 | { |
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258 | ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ |
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259 | close (fd); |
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260 | } |
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261 | # endif |
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262 | /* ---------------------------------------- */ |
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263 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
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264 | D_TTY ((stderr, "rxvt_control_tty (): /dev/tty has controlling tty? %s", fd < 0 ? "no (good)" : "yes (bad)")); |
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265 | if (fd >= 0) |
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266 | close (fd); /* ouch: still have controlling tty */ |
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267 | /* ---------------------------------------- */ |
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268 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
228 | #if defined(HAVE_DEV_PTMX) && defined(I_PUSH) |
269 | /* |
229 | /* |
270 | * Push STREAMS modules: |
230 | * Push STREAMS modules: |
271 | * ptem: pseudo-terminal hardware emulation module. |
231 | * ptem: pseudo-terminal hardware emulation module. |
272 | * ldterm: standard terminal line discipline. |
232 | * ldterm: standard terminal line discipline. |
273 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
233 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
… | |
… | |
285 | */ |
245 | */ |
286 | # ifdef HAVE_ISASTREAM |
246 | # ifdef HAVE_ISASTREAM |
287 | if (isastream (fd_tty) == 1) |
247 | if (isastream (fd_tty) == 1) |
288 | # endif |
248 | # endif |
289 | { |
249 | { |
290 | D_TTY ((stderr, "rxvt_control_tty (): Pushing STREAMS modules")); |
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291 | ioctl (fd_tty, I_PUSH, "ptem"); |
250 | ioctl (fd_tty, I_PUSH, "ptem"); |
292 | ioctl (fd_tty, I_PUSH, "ldterm"); |
251 | ioctl (fd_tty, I_PUSH, "ldterm"); |
293 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
252 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
294 | } |
253 | } |
295 | #endif |
254 | #endif |
296 | /* ---------------------------------------- */ |
255 | |
297 | # if defined(TIOCSCTTY) |
256 | #ifdef TIOCSCTTY |
298 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
257 | ioctl (fd_tty, TIOCSCTTY, NULL); |
299 | D_TTY ((stderr, "rxvt_control_tty (): ioctl (..,TIOCSCTTY): %d", fd)); |
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300 | # elif defined(TIOCSETCTTY) |
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301 | fd = ioctl (fd_tty, TIOCSETCTTY, NULL); |
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302 | D_TTY ((stderr, "rxvt_control_tty (): ioctl (..,TIOCSETCTTY): %d", fd)); |
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303 | # else |
258 | #else |
304 | fd = open (ttydev, O_RDWR); |
259 | fd = open (name, O_RDWR); |
305 | D_TTY ((stderr, "rxvt_control_tty (): tty open%s", fd < 0 ? " failure" : "ed OK")); |
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306 | if (fd >= 0) |
260 | if (fd >= 0) |
307 | close (fd); |
261 | close (fd); |
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262 | #endif |
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263 | |
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264 | int fd = open ("/dev/tty", O_WRONLY); |
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265 | if (fd < 0) |
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266 | return -1; /* fatal */ |
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267 | |
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268 | close (fd); |
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269 | |
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270 | return 0; |
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271 | } |
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272 | |
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273 | void |
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274 | ptytty::close_tty () |
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275 | { |
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276 | if (tty < 0) |
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277 | return; |
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278 | |
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279 | close (tty); |
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280 | tty = -1; |
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281 | } |
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282 | |
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283 | bool |
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284 | ptytty::make_controlling_tty () |
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285 | { |
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286 | return control_tty (tty) >= 0; |
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287 | } |
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288 | |
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289 | void |
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290 | ptytty::set_utf8_mode (bool on) |
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291 | { |
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292 | #ifdef IUTF8 |
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293 | if (pty < 0) |
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294 | return; |
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295 | |
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296 | struct termios tio; |
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297 | |
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298 | if (tcgetattr (pty, &tio) != -1) |
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299 | { |
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300 | tcflag_t new_cflag = tio.c_iflag; |
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301 | |
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302 | if (on) |
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303 | new_cflag |= IUTF8; |
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304 | else |
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305 | new_cflag &= ~IUTF8; |
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306 | |
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307 | if (new_cflag != tio.c_iflag) |
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308 | { |
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309 | tio.c_iflag = new_cflag; |
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310 | tcsetattr (pty, TCSANOW, &tio); |
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311 | } |
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312 | } |
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313 | #endif |
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314 | } |
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315 | |
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316 | static struct ttyconf { |
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317 | gid_t gid; |
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318 | mode_t mode; |
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319 | |
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320 | ttyconf () |
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321 | { |
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322 | #ifdef TTY_GID_SUPPORT |
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323 | struct group *gr = getgrnam ("tty"); |
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324 | |
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325 | if (gr) |
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326 | { /* change group ownership of tty to "tty" */ |
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327 | mode = S_IRUSR | S_IWUSR | S_IWGRP; |
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328 | gid = gr->gr_gid; |
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329 | } |
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330 | else |
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331 | #endif /* TTY_GID_SUPPORT */ |
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332 | { |
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333 | mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH; |
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334 | gid = 0; |
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335 | } |
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336 | } |
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337 | } ttyconf; |
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338 | |
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339 | ptytty_unix::ptytty_unix () |
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340 | { |
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341 | name = 0; |
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342 | #if UTMP_SUPPORT |
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343 | cmd_pid = 0; |
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344 | #endif |
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345 | } |
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346 | |
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347 | ptytty_unix::~ptytty_unix () |
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348 | { |
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349 | #if UTMP_SUPPORT |
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350 | logout (); |
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351 | #endif |
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352 | put (); |
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353 | } |
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354 | |
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355 | void |
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356 | ptytty_unix::put () |
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357 | { |
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358 | if (name) |
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359 | { |
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360 | chmod (name, RESTORE_TTY_MODE); |
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361 | chown (name, 0, ttyconf.gid); |
|
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362 | } |
|
|
363 | |
|
|
364 | close_tty (); |
|
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365 | |
|
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366 | if (pty >= 0) |
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367 | close (pty); |
|
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368 | |
|
|
369 | free (name); |
|
|
370 | |
|
|
371 | pty = tty = -1; |
|
|
372 | name = 0; |
|
|
373 | } |
|
|
374 | |
|
|
375 | bool |
|
|
376 | ptytty_unix::get () |
|
|
377 | { |
|
|
378 | /* get master (pty) */ |
|
|
379 | if ((pty = get_pty (&tty, &name)) < 0) |
|
|
380 | return false; |
|
|
381 | |
|
|
382 | fcntl (pty, F_SETFL, O_NONBLOCK); |
|
|
383 | |
|
|
384 | /* get slave (tty) */ |
|
|
385 | if (tty < 0) |
|
|
386 | { |
|
|
387 | #ifndef NO_SETOWNER_TTYDEV |
|
|
388 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
|
|
389 | chmod (name, ttyconf.mode); |
|
|
390 | # ifdef HAVE_REVOKE |
|
|
391 | revoke (name); |
308 | # endif |
392 | # endif |
309 | /* ---------------------------------------- */ |
393 | #endif |
310 | fd = open ("/dev/tty", O_WRONLY); |
|
|
311 | D_TTY ((stderr, "rxvt_control_tty (): do we have controlling tty now: %s", fd < 0 ? "no (fatal)" : "yes (good)")); |
|
|
312 | if (fd < 0) |
|
|
313 | return -1; /* fatal */ |
|
|
314 | close (fd); |
|
|
315 | /* ---------------------------------------- */ |
|
|
316 | D_TTY ((stderr, "rxvt_control_tty (): tcgetpgrp (): %d getpgrp (): %d", tcgetpgrp (fd_tty), getpgrp ())); |
|
|
317 | /* ---------------------------------------- */ |
|
|
318 | #endif /* ! __QNX__ */ |
|
|
319 | |
394 | |
|
|
395 | if ((tty = get_tty (name)) < 0) |
|
|
396 | { |
|
|
397 | put (); |
|
|
398 | return false; |
|
|
399 | } |
|
|
400 | } |
|
|
401 | |
320 | return 0; |
402 | return true; |
321 | } |
403 | } |
322 | /*----------------------- end-of-file (C source) -----------------------*/ |
404 | |