1 | /*--------------------------------*-C-*---------------------------------* |
1 | /*--------------------------------*-C-*---------------------------------* |
2 | * File: ptytty.c |
2 | * File: ptytty.C |
3 | *----------------------------------------------------------------------* |
3 | *----------------------------------------------------------------------* |
4 | * $Id: ptytty.C,v 1.2 2003/11/24 17:31:27 pcg Exp $ |
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5 | * |
4 | * |
6 | * All portions of code are copyright by their respective author/s. |
5 | * All portions of code are copyright by their respective author/s. |
7 | * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com> |
6 | * Copyright (c) 1999-2001 Geoff Wing <gcw@pobox.com> |
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7 | * Copyright (c) 2004-2006 Marc Lehmann <pcg@goof.com> |
8 | * |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify |
9 | * 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 |
10 | * 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 |
11 | * the Free Software Foundation; either version 2 of the License, or |
12 | * (at your option) any later version. |
12 | * (at your option) any later version. |
… | |
… | |
20 | * along with this program; if not, write to the Free Software |
20 | * along with this program; if not, write to the Free Software |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
22 | *---------------------------------------------------------------------*/ |
22 | *---------------------------------------------------------------------*/ |
23 | |
23 | |
24 | #include "../config.h" /* NECESSARY */ |
24 | #include "../config.h" /* NECESSARY */ |
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25 | #include "rxvt.h" |
25 | |
26 | |
26 | /* |
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27 | * Try to be self-contained except for the above autoconfig'd defines |
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28 | */ |
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29 | |
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30 | #include <stdio.h> |
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31 | #ifdef HAVE_STDLIB_H |
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32 | # include <stdlib.h> |
27 | # include <cstdlib> |
33 | #endif |
28 | # include <cstring> |
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29 | |
34 | #ifdef HAVE_SYS_TYPES_H |
30 | #ifdef HAVE_SYS_TYPES_H |
35 | # include <sys/types.h> |
31 | # include <sys/types.h> |
36 | #endif |
32 | #endif |
37 | #ifdef HAVE_UNISTD_H |
33 | #ifdef HAVE_UNISTD_H |
38 | # include <unistd.h> |
34 | # include <unistd.h> |
39 | #endif |
35 | #endif |
40 | #if defined(HAVE_STRING_H) |
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41 | # include <string.h> |
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42 | #endif |
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43 | #ifdef HAVE_FCNTL_H |
36 | #ifdef HAVE_FCNTL_H |
44 | # include <fcntl.h> |
37 | # include <fcntl.h> |
45 | #endif |
38 | #endif |
46 | #ifdef HAVE_SYS_IOCTL_H |
39 | #ifdef HAVE_SYS_IOCTL_H |
47 | # include <sys/ioctl.h> |
40 | # include <sys/ioctl.h> |
48 | #endif |
41 | #endif |
49 | #if defined(PTYS_ARE_PTMX) && !defined(__CYGWIN32__) |
42 | #if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H) |
50 | # include <sys/stropts.h> /* for I_PUSH */ |
43 | # include <sys/stropts.h> /* for I_PUSH */ |
51 | #endif |
44 | #endif |
52 | |
45 | #ifdef HAVE_ISASTREAM |
53 | |
46 | # include <stropts.h> |
54 | #ifdef DEBUG_TTY |
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55 | # define D_TTY(x) fprintf x ; fputc('\n', stderr) ; fflush(stderr) |
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56 | #else |
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57 | # define D_TTY(x) |
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58 | #endif |
47 | #endif |
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48 | #if defined(HAVE_PTY_H) |
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49 | # include <pty.h> |
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50 | #elif defined(HAVE_LIBUTIL_H) |
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51 | # include <libutil.h> |
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52 | #elif defined(HAVE_UTIL_H) |
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53 | # include <util.h> |
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54 | #endif |
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55 | |
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56 | #include <cstdio> |
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57 | #include <grp.h> |
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58 | |
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59 | #include "ptytty.h" |
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60 | |
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61 | ///////////////////////////////////////////////////////////////////////////// |
59 | |
62 | |
60 | /* ------------------------------------------------------------------------- * |
63 | /* ------------------------------------------------------------------------- * |
61 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
64 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
62 | * ------------------------------------------------------------------------- */ |
65 | * ------------------------------------------------------------------------- */ |
63 | /* |
66 | /* |
64 | * Returns pty file descriptor, or -1 on failure |
67 | * Returns pty file descriptor, or -1 on failure |
65 | * If successful, ttydev is set to the name of the slave device. |
68 | * If successful, ttydev is set to the name of the slave device. |
66 | * fd_tty _may_ also be set to an open fd to the slave device |
69 | * fd_tty _may_ also be set to an open fd to the slave device |
67 | */ |
70 | */ |
68 | /* EXTPROTO */ |
71 | static int |
69 | int |
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70 | rxvt_get_pty(int *fd_tty, const char **ttydev) |
72 | get_pty (int *fd_tty, char **ttydev) |
71 | { |
73 | { |
72 | int pfd; |
74 | int pfd; |
73 | |
75 | |
74 | #ifdef PTYS_ARE_OPENPTY |
76 | #ifdef PTYS_ARE_OPENPTY |
75 | char tty_name[sizeof "/dev/pts/????\0"]; |
77 | char tty_name[sizeof "/dev/pts/????\0"]; |
76 | |
78 | |
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79 | rxvt_privileges(RESTORE); |
77 | if (openpty(&pfd, fd_tty, tty_name, NULL, NULL) != -1) { |
80 | int res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); |
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81 | rxvt_privileges(IGNORE); |
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82 | |
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83 | if (res != -1) |
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84 | { |
78 | *ttydev = strdup(tty_name); |
85 | *ttydev = strdup (tty_name); |
79 | return pfd; |
86 | return pfd; |
80 | } |
87 | } |
81 | #endif |
88 | #endif |
82 | |
89 | |
83 | #ifdef PTYS_ARE__GETPTY |
90 | #ifdef PTYS_ARE__GETPTY |
84 | *ttydev = _getpty(&pfd, O_RDWR | O_NDELAY | O_NOCTTY, 0622, 0); |
91 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
85 | if (*ttydev != NULL) |
92 | if (*ttydev != NULL) |
86 | return pfd; |
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87 | #endif |
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88 | |
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89 | #ifdef PTYS_ARE_GETPTY |
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90 | char *ptydev; |
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91 | |
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92 | while ((ptydev = getpty()) != NULL) |
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93 | if ((pfd = open(ptydev, O_RDWR | O_NOCTTY, 0)) >= 0) { |
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94 | *ttydev = ptydev; |
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95 | return pfd; |
93 | return pfd; |
96 | } |
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97 | #endif |
94 | #endif |
98 | |
95 | |
99 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
96 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
100 | # if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX) |
97 | # if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_POSIX) || defined(PTYS_ARE_PTMX) |
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98 | |
101 | { |
99 | { |
102 | # ifdef PTYS_ARE_GETPT |
100 | # ifdef PTYS_ARE_GETPT |
103 | pfd = getpt(); |
101 | pfd = getpt(); |
104 | # else |
102 | # else |
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103 | # ifdef PTYS_ARE_POSIX |
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104 | pfd = posix_openpt (O_RDWR); |
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105 | # else |
105 | pfd = open("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
106 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
106 | # endif |
107 | # endif |
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108 | # endif |
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109 | |
107 | if (pfd >= 0) { |
110 | if (pfd >= 0) |
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111 | { |
108 | if (grantpt(pfd) == 0 /* change slave permissions */ |
112 | if (grantpt (pfd) == 0 /* change slave permissions */ |
109 | && unlockpt(pfd) == 0) { /* slave now unlocked */ |
113 | && unlockpt (pfd) == 0) |
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114 | { /* slave now unlocked */ |
110 | *ttydev = ptsname(pfd); /* get slave's name */ |
115 | *ttydev = strdup (ptsname (pfd)); /* get slave's name */ |
111 | return pfd; |
116 | return pfd; |
112 | } |
117 | } |
113 | close(pfd); |
118 | close (pfd); |
114 | } |
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115 | } |
119 | } |
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120 | } |
116 | # endif |
121 | # endif |
117 | #endif |
122 | #endif |
118 | |
123 | |
119 | #ifdef PTYS_ARE_PTC |
124 | #ifdef PTYS_ARE_PTC |
120 | if ((pfd = open("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) { |
125 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
121 | *ttydev = ttyname(pfd); |
126 | { |
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127 | *ttydev = strdup (ttyname (pfd)); |
122 | return pfd; |
128 | return pfd; |
123 | } |
129 | } |
124 | #endif |
130 | #endif |
125 | |
131 | |
126 | #ifdef PTYS_ARE_CLONE |
132 | #ifdef PTYS_ARE_CLONE |
127 | if ((pfd = open("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) { |
133 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
128 | *ttydev = ptsname(pfd); |
134 | { |
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135 | *ttydev = strdup (ptsname (pfd)); |
129 | return pfd; |
136 | return pfd; |
130 | } |
137 | } |
131 | #endif |
138 | #endif |
132 | |
139 | |
133 | #ifdef PTYS_ARE_NUMERIC |
140 | #ifdef PTYS_ARE_NUMERIC |
134 | { |
141 | { |
135 | int idx; |
142 | int idx; |
136 | char *c1, *c2; |
143 | char *c1, *c2; |
137 | char pty_name[] = "/dev/ptyp???"; |
144 | char pty_name[] = "/dev/ptyp???"; |
138 | char tty_name[] = "/dev/ttyp???"; |
145 | char tty_name[] = "/dev/ttyp???"; |
139 | |
146 | |
140 | c1 = &(pty_name[sizeof(pty_name) - 4]); |
147 | c1 = &(pty_name[sizeof (pty_name) - 4]); |
141 | c2 = &(tty_name[sizeof(tty_name) - 4]); |
148 | c2 = &(tty_name[sizeof (tty_name) - 4]); |
142 | for (idx = 0; idx < 256; idx++) { |
149 | for (idx = 0; idx < 256; idx++) |
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150 | { |
143 | sprintf(c1, "%d", idx); |
151 | sprintf (c1, "%d", idx); |
144 | sprintf(c2, "%d", idx); |
152 | sprintf (c2, "%d", idx); |
145 | if (access(tty_name, F_OK) < 0) { |
153 | if (access (tty_name, F_OK) < 0) |
146 | idx = 256; |
154 | { |
147 | break; |
155 | idx = 256; |
148 | } |
156 | break; |
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157 | } |
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158 | |
149 | if ((pfd = open(pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) { |
159 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
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160 | { |
150 | if (access(tty_name, R_OK | W_OK) == 0) { |
161 | if (access (tty_name, R_OK | W_OK) == 0) |
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162 | { |
151 | *ttydev = strdup(tty_name); |
163 | *ttydev = strdup (tty_name); |
152 | return pfd; |
164 | return pfd; |
153 | } |
165 | } |
154 | close(pfd); |
166 | |
155 | } |
167 | close (pfd); |
156 | } |
168 | } |
157 | } |
169 | } |
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170 | } |
158 | #endif |
171 | #endif |
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172 | |
159 | #ifdef PTYS_ARE_SEARCHED |
173 | #ifdef PTYS_ARE_SEARCHED |
160 | { |
174 | { |
161 | const char *c1, *c2; |
175 | const char *c1, *c2; |
162 | char pty_name[] = "/dev/pty??"; |
176 | char pty_name[] = "/dev/pty??"; |
163 | char tty_name[] = "/dev/tty??"; |
177 | char tty_name[] = "/dev/tty??"; |
164 | |
178 | |
165 | # ifndef PTYCHAR1 |
179 | # ifndef PTYCHAR1 |
166 | # define PTYCHAR1 "pqrstuvwxyz" |
180 | # define PTYCHAR1 "pqrstuvwxyz" |
167 | # endif |
181 | # endif |
168 | # ifndef PTYCHAR2 |
182 | # ifndef PTYCHAR2 |
169 | # define PTYCHAR2 "0123456789abcdef" |
183 | # define PTYCHAR2 "0123456789abcdef" |
170 | # endif |
184 | # endif |
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185 | |
171 | for (c1 = PTYCHAR1; *c1; c1++) { |
186 | for (c1 = PTYCHAR1; *c1; c1++) |
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187 | { |
172 | pty_name[(sizeof(pty_name) - 3)] = |
188 | pty_name[ (sizeof (pty_name) - 3)] = |
173 | tty_name[(sizeof(pty_name) - 3)] = *c1; |
189 | tty_name[ (sizeof (pty_name) - 3)] = *c1; |
174 | for (c2 = PTYCHAR2; *c2; c2++) { |
190 | for (c2 = PTYCHAR2; *c2; c2++) |
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191 | { |
175 | pty_name[(sizeof(pty_name) - 2)] = |
192 | pty_name[ (sizeof (pty_name) - 2)] = |
176 | tty_name[(sizeof(pty_name) - 2)] = *c2; |
193 | tty_name[ (sizeof (pty_name) - 2)] = *c2; |
177 | if ((pfd = open(pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) { |
194 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
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195 | { |
178 | if (access(tty_name, R_OK | W_OK) == 0) { |
196 | if (access (tty_name, R_OK | W_OK) == 0) |
179 | *ttydev = strdup(tty_name); |
197 | { |
180 | return pfd; |
198 | *ttydev = strdup (tty_name); |
181 | } |
199 | return pfd; |
182 | close(pfd); |
200 | } |
183 | } |
201 | |
184 | } |
202 | close (pfd); |
185 | } |
203 | } |
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204 | } |
186 | } |
205 | } |
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206 | } |
187 | #endif |
207 | #endif |
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208 | |
188 | return -1; |
209 | return -1; |
189 | } |
210 | } |
190 | |
211 | |
191 | /*----------------------------------------------------------------------*/ |
212 | /*----------------------------------------------------------------------*/ |
192 | /* |
213 | /* |
193 | * Returns tty file descriptor, or -1 on failure |
214 | * Returns tty file descriptor, or -1 on failure |
194 | */ |
215 | */ |
195 | /* EXTPROTO */ |
216 | static int |
196 | int |
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197 | rxvt_get_tty(const char *ttydev) |
217 | get_tty (char *ttydev) |
198 | { |
218 | { |
199 | return open(ttydev, O_RDWR | O_NOCTTY, 0); |
219 | return open (ttydev, O_RDWR | O_NOCTTY, 0); |
200 | } |
220 | } |
201 | |
221 | |
202 | /*----------------------------------------------------------------------*/ |
222 | /*----------------------------------------------------------------------*/ |
203 | /* |
223 | /* |
204 | * Make our tty a controlling tty so that /dev/tty points to us |
224 | * Make our tty a controlling tty so that /dev/tty points to us |
205 | */ |
225 | */ |
206 | /* EXTPROTO */ |
226 | static int |
207 | int |
227 | control_tty (int fd_tty) |
208 | rxvt_control_tty(int fd_tty, const char *ttydev) |
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209 | { |
228 | { |
210 | #ifndef __QNX__ |
229 | int fd; |
211 | int fd; |
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212 | |
230 | |
213 | D_TTY((stderr, "rxvt_control_tty(): pid: %d, tty fd: %d, dev: %s", getpid(), fd_tty, ttydev)); |
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214 | /* ---------------------------------------- */ |
231 | /* ---------------------------------------- */ |
215 | # ifdef HAVE_SETSID |
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216 | setsid(); |
232 | setsid (); |
217 | # endif |
233 | |
218 | # if defined(HAVE_SETPGID) |
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219 | setpgid(0, 0); |
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220 | # elif defined(HAVE_SETPGRP) |
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221 | setpgrp(0, 0); |
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222 | # endif |
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223 | /* ---------------------------------------- */ |
234 | /* ---------------------------------------- */ |
224 | # ifdef TIOCNOTTY |
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225 | fd = open("/dev/tty", O_RDWR | O_NOCTTY); |
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226 | D_TTY((stderr, "rxvt_control_tty(): Voiding tty associations: previous=%s", fd < 0 ? "no" : "yes")); |
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227 | if (fd >= 0) { |
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228 | ioctl(fd, TIOCNOTTY, NULL); /* void tty associations */ |
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229 | close(fd); |
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230 | } |
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231 | # endif |
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232 | /* ---------------------------------------- */ |
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233 | fd = open("/dev/tty", O_RDWR | O_NOCTTY); |
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234 | D_TTY((stderr, "rxvt_control_tty(): /dev/tty has controlling tty? %s", fd < 0 ? "no (good)" : "yes (bad)")); |
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235 | if (fd >= 0) |
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236 | close(fd); /* ouch: still have controlling tty */ |
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237 | /* ---------------------------------------- */ |
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238 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
235 | # if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
239 | /* |
236 | /* |
240 | * Push STREAMS modules: |
237 | * Push STREAMS modules: |
241 | * ptem: pseudo-terminal hardware emulation module. |
238 | * ptem: pseudo-terminal hardware emulation module. |
242 | * ldterm: standard terminal line discipline. |
239 | * ldterm: standard terminal line discipline. |
243 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
240 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
244 | * |
241 | * |
245 | * After we push the STREAMS modules, the first open() on the slave side |
242 | * After we push the STREAMS modules, the first open () on the slave side |
246 | * (i.e. the next section between the dashes giving us "tty opened OK") |
243 | * (i.e. the next section between the dashes giving us "tty opened OK") |
247 | * should make the "ptem" (or "ldterm" depending upon either which OS |
244 | * should make the "ptem" (or "ldterm" depending upon either which OS |
248 | * version or which set of manual pages you have) module give us a |
245 | * version or which set of manual pages you have) module give us a |
249 | * controlling terminal. We must already have close()d the master side |
246 | * controlling terminal. We must already have close ()d the master side |
250 | * fd in this child process before we push STREAMS modules on because the |
247 | * fd in this child process before we push STREAMS modules on because the |
251 | * documentation is really unclear about whether it is any close() on |
248 | * documentation is really unclear about whether it is any close () on |
252 | * the master side or the last close() - i.e. a proper STREAMS dismantling |
249 | * the master side or the last close () - i.e. a proper STREAMS dismantling |
253 | * close() - on the master side which causes a hang up to be sent |
250 | * close () - on the master side which causes a hang up to be sent |
254 | * through - Geoff Wing |
251 | * through - Geoff Wing |
255 | */ |
252 | */ |
256 | # ifdef HAVE_ISASTREAM |
253 | # ifdef HAVE_ISASTREAM |
257 | if (isastream(fd_tty) == 1) |
254 | if (isastream (fd_tty) == 1) |
258 | # endif |
255 | # endif |
259 | { |
256 | { |
260 | D_TTY((stderr, "rxvt_control_tty(): Pushing STREAMS modules")); |
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261 | ioctl(fd_tty, I_PUSH, "ptem"); |
257 | ioctl (fd_tty, I_PUSH, "ptem"); |
262 | ioctl(fd_tty, I_PUSH, "ldterm"); |
258 | ioctl (fd_tty, I_PUSH, "ldterm"); |
263 | ioctl(fd_tty, I_PUSH, "ttcompat"); |
259 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
264 | } |
260 | } |
265 | #endif |
261 | # endif |
266 | /* ---------------------------------------- */ |
262 | /* ---------------------------------------- */ |
267 | # if defined(TIOCSCTTY) |
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268 | fd = ioctl(fd_tty, TIOCSCTTY, NULL); |
263 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
269 | D_TTY((stderr, "rxvt_control_tty(): ioctl(..,TIOCSCTTY): %d", fd)); |
264 | /* ---------------------------------------- */ |
270 | # elif defined(TIOCSETCTTY) |
265 | fd = open ("/dev/tty", O_WRONLY); |
271 | fd = ioctl(fd_tty, TIOCSETCTTY, NULL); |
266 | if (fd < 0) |
272 | D_TTY((stderr, "rxvt_control_tty(): ioctl(..,TIOCSETCTTY): %d", fd)); |
267 | return -1; /* fatal */ |
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268 | close (fd); |
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269 | /* ---------------------------------------- */ |
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270 | |
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271 | return 0; |
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272 | } |
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273 | |
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274 | void |
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275 | rxvt_ptytty::close_tty () |
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276 | { |
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277 | if (tty < 0) |
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278 | return; |
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279 | |
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280 | close (tty); |
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281 | tty = -1; |
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282 | } |
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283 | |
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284 | bool |
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285 | rxvt_ptytty::make_controlling_tty () |
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286 | { |
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287 | return control_tty (tty) >= 0; |
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288 | } |
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289 | |
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290 | void |
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291 | rxvt_ptytty::set_utf8_mode (bool on) |
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292 | { |
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293 | #ifdef IUTF8 |
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294 | if (pty < 0) |
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295 | return; |
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296 | |
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297 | struct termios tio; |
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298 | |
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299 | if (tcgetattr (pty, &tio) != -1) |
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300 | { |
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301 | tcflag_t new_cflag = tio.c_iflag; |
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302 | |
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303 | if (on) |
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304 | new_cflag |= IUTF8; |
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305 | else |
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306 | new_cflag &= ~IUTF8; |
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307 | |
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308 | if (new_cflag != tio.c_iflag) |
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309 | { |
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310 | tio.c_iflag = new_cflag; |
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311 | tcsetattr (pty, TCSANOW, &tio); |
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312 | } |
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313 | } |
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314 | #endif |
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315 | } |
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316 | |
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317 | ///////////////////////////////////////////////////////////////////////////// |
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318 | |
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319 | #ifndef NO_SETOWNER_TTYDEV |
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320 | static struct ttyconf { |
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321 | gid_t gid; |
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322 | mode_t mode; |
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323 | |
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324 | ttyconf () |
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325 | { |
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326 | #ifdef TTY_GID_SUPPORT |
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327 | struct group *gr = getgrnam ("tty"); |
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328 | |
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329 | if (gr) |
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330 | { /* change group ownership of tty to "tty" */ |
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331 | mode = S_IRUSR | S_IWUSR | S_IWGRP; |
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332 | gid = gr->gr_gid; |
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333 | } |
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334 | else |
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335 | #endif /* TTY_GID_SUPPORT */ |
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336 | { |
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337 | mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH; |
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338 | gid = getgid (); |
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339 | } |
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340 | } |
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341 | } ttyconf; |
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342 | |
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343 | ///////////////////////////////////////////////////////////////////////////// |
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344 | |
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345 | void |
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346 | rxvt_ptytty_unix::privileges (rxvt_privaction action) |
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347 | { |
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348 | if (!name || !*name) |
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349 | return; |
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350 | |
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351 | rxvt_privileges (RESTORE); |
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352 | |
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353 | if (action == SAVE) |
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354 | { |
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355 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
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356 | /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */ |
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357 | if (lstat (name, &savestat) < 0) /* you lose out */ |
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358 | ; |
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359 | else |
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360 | # endif |
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361 | { |
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362 | saved = true; |
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363 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
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364 | chmod (name, ttyconf.mode); |
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365 | # ifdef HAVE_REVOKE |
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366 | revoke (name); |
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367 | # endif |
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368 | } |
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369 | } |
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370 | else |
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371 | { /* action == RESTORE */ |
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372 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
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373 | if (saved) |
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374 | { |
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375 | chmod (name, savestat.st_mode); |
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376 | chown (name, savestat.st_uid, savestat.st_gid); |
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377 | } |
273 | # else |
378 | # else |
274 | fd = open(ttydev, O_RDWR); |
379 | chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)); |
275 | D_TTY((stderr, "rxvt_control_tty(): tty open%s", fd < 0 ? " failure" : "ed OK")); |
380 | chown (name, 0, 0); |
276 | if (fd >= 0) |
381 | # endif |
277 | close(fd); |
382 | |
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383 | } |
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384 | |
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385 | rxvt_privileges (IGNORE); |
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386 | } |
278 | # endif |
387 | #endif |
279 | /* ---------------------------------------- */ |
388 | |
280 | fd = open("/dev/tty", O_WRONLY); |
389 | rxvt_ptytty_unix::rxvt_ptytty_unix () |
281 | D_TTY((stderr, "rxvt_control_tty(): do we have controlling tty now: %s", fd < 0 ? "no (fatal)" : "yes (good)")); |
390 | { |
282 | if (fd < 0) |
391 | pty = tty = -1; |
283 | return -1; /* fatal */ |
392 | name = 0; |
284 | close(fd); |
393 | #ifndef NO_SETOWNER_TTYDEV |
285 | /* ---------------------------------------- */ |
394 | saved = false; |
286 | D_TTY((stderr, "rxvt_control_tty(): tcgetpgrp(): %d getpgrp(): %d", tcgetpgrp(fd_tty), getpgrp())); |
395 | #endif |
287 | /* ---------------------------------------- */ |
396 | #if UTMP_SUPPORT |
288 | #endif /* ! __QNX__ */ |
397 | cmd_pid = 0; |
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398 | #endif |
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399 | } |
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400 | |
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401 | rxvt_ptytty_unix::~rxvt_ptytty_unix () |
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402 | { |
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403 | logout (); |
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404 | put (); |
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405 | } |
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406 | |
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407 | void |
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408 | rxvt_ptytty_unix::put () |
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409 | { |
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410 | #ifndef NO_SETOWNER_TTYDEV |
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411 | privileges (RESTORE); |
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412 | #endif |
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413 | |
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414 | if (pty >= 0) close (pty); |
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415 | close_tty (); |
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416 | free (name); |
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417 | |
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418 | pty = tty = -1; |
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419 | name = 0; |
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420 | } |
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421 | |
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422 | bool |
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423 | rxvt_ptytty_unix::get () |
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424 | { |
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425 | /* get master (pty) */ |
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426 | if ((pty = get_pty (&tty, &name)) < 0) |
289 | return 0; |
427 | return false; |
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428 | |
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429 | fcntl (pty, F_SETFL, O_NONBLOCK); |
|
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430 | |
|
|
431 | /* get slave (tty) */ |
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432 | if (tty < 0) |
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433 | { |
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434 | #ifndef NO_SETOWNER_TTYDEV |
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435 | privileges (SAVE); |
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436 | #endif |
|
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437 | |
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|
438 | if ((tty = get_tty (name)) < 0) |
|
|
439 | { |
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|
440 | put (); |
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|
441 | return false; |
|
|
442 | } |
|
|
443 | } |
|
|
444 | |
|
|
445 | return true; |
290 | } |
446 | } |
|
|
447 | |
|
|
448 | // a "factory" *g* |
|
|
449 | rxvt_ptytty *rxvt_new_ptytty () |
|
|
450 | { |
|
|
451 | return new rxvt_ptytty_unix; |
|
|
452 | } |
|
|
453 | |
291 | /*----------------------- end-of-file (C source) -----------------------*/ |
454 | /*----------------------- end-of-file (C source) -----------------------*/ |
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|
455 | |