1 | /*--------------------------------*-C-*---------------------------------* |
1 | /*--------------------------------*-C-*---------------------------------* |
2 | * File: ptytty.c |
2 | * File: ptytty.C |
3 | *----------------------------------------------------------------------* |
3 | *----------------------------------------------------------------------* |
4 | * |
4 | * |
5 | * All portions of code are copyright by their respective author/s. |
5 | * All portions of code are copyright by their respective author/s. |
6 | * 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> |
7 | * |
8 | * |
8 | * 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 |
9 | * 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 |
10 | * the Free Software Foundation; either version 2 of the License, or |
11 | * the Free Software Foundation; either version 2 of the License, or |
11 | * (at your option) any later version. |
12 | * (at your option) any later version. |
… | |
… | |
19 | * along with this program; if not, write to the Free Software |
20 | * along with this program; if not, write to the Free Software |
20 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
21 | *---------------------------------------------------------------------*/ |
22 | *---------------------------------------------------------------------*/ |
22 | |
23 | |
23 | #include "../config.h" /* NECESSARY */ |
24 | #include "../config.h" /* NECESSARY */ |
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25 | #include "rxvt.h" |
24 | |
26 | |
25 | /* |
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26 | * Try to be self-contained except for the above autoconfig'd defines |
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27 | */ |
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28 | |
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29 | #if 0 |
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30 | #ifdef HAVE_GETPT |
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31 | # define _GNU_SOURCE |
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32 | #endif |
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33 | #endif |
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34 | |
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35 | #include <cstdio> |
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36 | #ifdef HAVE_STDLIB_H |
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37 | # include <cstdlib> |
27 | # include <cstdlib> |
38 | #endif |
28 | # include <cstring> |
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29 | |
39 | #ifdef HAVE_SYS_TYPES_H |
30 | #ifdef HAVE_SYS_TYPES_H |
40 | # include <sys/types.h> |
31 | # include <sys/types.h> |
41 | #endif |
32 | #endif |
42 | #ifdef HAVE_UNISTD_H |
33 | #ifdef HAVE_UNISTD_H |
43 | # include <unistd.h> |
34 | # include <unistd.h> |
44 | #endif |
35 | #endif |
45 | #if defined(HAVE_STRING_H) |
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46 | # include <cstring> |
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47 | #endif |
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48 | #ifdef HAVE_FCNTL_H |
36 | #ifdef HAVE_FCNTL_H |
49 | # include <fcntl.h> |
37 | # include <fcntl.h> |
50 | #endif |
38 | #endif |
51 | #ifdef HAVE_SYS_IOCTL_H |
39 | #ifdef HAVE_SYS_IOCTL_H |
52 | # include <sys/ioctl.h> |
40 | # include <sys/ioctl.h> |
53 | #endif |
41 | #endif |
54 | #if defined(PTYS_ARE_PTMX) && !defined(__CYGWIN32__) |
42 | #if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H) |
55 | # include <sys/stropts.h> /* for I_PUSH */ |
43 | # include <sys/stropts.h> /* for I_PUSH */ |
56 | #endif |
44 | #endif |
57 | #ifdef HAVE_ISASTREAM |
45 | #ifdef HAVE_ISASTREAM |
58 | # include <stropts.h> |
46 | # include <stropts.h> |
59 | #endif |
47 | #endif |
60 | |
48 | #if defined(HAVE_PTY_H) |
61 | #ifdef DEBUG_TTY |
49 | # include <pty.h> |
62 | # define D_TTY(x) fprintf x ; fputc('\n', stderr) ; fflush(stderr) |
50 | #elif defined(HAVE_LIBUTIL_H) |
63 | #else |
51 | # include <libutil.h> |
64 | # define D_TTY(x) |
52 | #elif defined(HAVE_UTIL_H) |
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53 | # include <util.h> |
65 | #endif |
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 | ///////////////////////////////////////////////////////////////////////////// |
66 | |
62 | |
67 | /* ------------------------------------------------------------------------- * |
63 | /* ------------------------------------------------------------------------- * |
68 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
64 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
69 | * ------------------------------------------------------------------------- */ |
65 | * ------------------------------------------------------------------------- */ |
70 | /* |
66 | /* |
71 | * Returns pty file descriptor, or -1 on failure |
67 | * Returns pty file descriptor, or -1 on failure |
72 | * 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. |
73 | * 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 |
74 | */ |
70 | */ |
75 | /* EXTPROTO */ |
71 | static int |
76 | int |
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77 | rxvt_get_pty (int *fd_tty, const char **ttydev) |
72 | get_pty (int *fd_tty, char **ttydev) |
78 | { |
73 | { |
79 | int pfd; |
74 | int pfd; |
80 | |
75 | |
81 | #ifdef PTYS_ARE_OPENPTY |
76 | #ifdef PTYS_ARE_OPENPTY |
82 | |
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83 | char tty_name[sizeof "/dev/pts/????\0"]; |
77 | char tty_name[sizeof "/dev/pts/????\0"]; |
84 | |
78 | |
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79 | rxvt_privileges(RESTORE); |
85 | 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) |
86 | { |
84 | { |
87 | *ttydev = strdup (tty_name); |
85 | *ttydev = strdup (tty_name); |
88 | return pfd; |
86 | return pfd; |
89 | } |
87 | } |
90 | #endif |
88 | #endif |
… | |
… | |
93 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
91 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
94 | if (*ttydev != NULL) |
92 | if (*ttydev != NULL) |
95 | return pfd; |
93 | return pfd; |
96 | #endif |
94 | #endif |
97 | |
95 | |
98 | #ifdef PTYS_ARE_GETPTY |
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99 | |
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100 | char *ptydev; |
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101 | |
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102 | while ((ptydev = getpty ()) != NULL) |
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103 | if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0) |
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104 | { |
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105 | *ttydev = ptydev; |
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106 | return pfd; |
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107 | } |
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108 | #endif |
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109 | |
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110 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
96 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
111 | # if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX) |
97 | # if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_POSIX) || defined(PTYS_ARE_PTMX) |
112 | |
98 | |
113 | { |
99 | { |
114 | # ifdef PTYS_ARE_GETPT |
100 | # ifdef PTYS_ARE_GETPT |
115 | pfd = getpt (); |
101 | pfd = getpt(); |
116 | # else |
102 | # else |
117 | |
103 | # ifdef PTYS_ARE_POSIX |
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104 | pfd = posix_openpt (O_RDWR); |
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105 | # else |
118 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
106 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
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107 | # endif |
119 | # endif |
108 | # endif |
120 | |
109 | |
121 | if (pfd >= 0) |
110 | if (pfd >= 0) |
122 | { |
111 | { |
123 | if (grantpt (pfd) == 0 /* change slave permissions */ |
112 | if (grantpt (pfd) == 0 /* change slave permissions */ |
124 | && unlockpt (pfd) == 0) |
113 | && unlockpt (pfd) == 0) |
125 | { /* slave now unlocked */ |
114 | { /* slave now unlocked */ |
126 | *ttydev = ptsname (pfd); /* get slave's name */ |
115 | *ttydev = strdup (ptsname (pfd)); /* get slave's name */ |
127 | return pfd; |
116 | return pfd; |
128 | } |
117 | } |
129 | close (pfd); |
118 | close (pfd); |
130 | } |
119 | } |
131 | } |
120 | } |
… | |
… | |
133 | #endif |
122 | #endif |
134 | |
123 | |
135 | #ifdef PTYS_ARE_PTC |
124 | #ifdef PTYS_ARE_PTC |
136 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
125 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
137 | { |
126 | { |
138 | *ttydev = ttyname (pfd); |
127 | *ttydev = strdup (ttyname (pfd)); |
139 | return pfd; |
128 | return pfd; |
140 | } |
129 | } |
141 | #endif |
130 | #endif |
142 | |
131 | |
143 | #ifdef PTYS_ARE_CLONE |
132 | #ifdef PTYS_ARE_CLONE |
144 | 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) |
145 | { |
134 | { |
146 | *ttydev = ptsname (pfd); |
135 | *ttydev = strdup (ptsname (pfd)); |
147 | return pfd; |
136 | return pfd; |
148 | } |
137 | } |
149 | #endif |
138 | #endif |
150 | |
139 | |
151 | #ifdef PTYS_ARE_NUMERIC |
140 | #ifdef PTYS_ARE_NUMERIC |
152 | { |
141 | { |
153 | int idx; |
142 | int idx; |
154 | char *c1, *c2; |
143 | char *c1, *c2; |
155 | char pty_name[] = "/dev/ptyp???"; |
144 | char pty_name[] = "/dev/ptyp???"; |
156 | char tty_name[] = "/dev/ttyp???"; |
145 | char tty_name[] = "/dev/ttyp???"; |
157 | |
146 | |
158 | c1 = & (pty_name[sizeof (pty_name) - 4]); |
147 | c1 = &(pty_name[sizeof (pty_name) - 4]); |
159 | c2 = & (tty_name[sizeof (tty_name) - 4]); |
148 | c2 = &(tty_name[sizeof (tty_name) - 4]); |
160 | for (idx = 0; idx < 256; idx++) |
149 | for (idx = 0; idx < 256; idx++) |
161 | { |
150 | { |
162 | sprintf (c1, "%d", idx); |
151 | sprintf (c1, "%d", idx); |
163 | sprintf (c2, "%d", idx); |
152 | sprintf (c2, "%d", idx); |
164 | if (access (tty_name, F_OK) < 0) |
153 | if (access (tty_name, F_OK) < 0) |
165 | { |
154 | { |
166 | idx = 256; |
155 | idx = 256; |
167 | break; |
156 | break; |
168 | } |
157 | } |
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158 | |
169 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
159 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
170 | { |
160 | { |
171 | if (access (tty_name, R_OK | W_OK) == 0) |
161 | if (access (tty_name, R_OK | W_OK) == 0) |
172 | { |
162 | { |
173 | *ttydev = strdup (tty_name); |
163 | *ttydev = strdup (tty_name); |
174 | return pfd; |
164 | return pfd; |
175 | } |
165 | } |
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166 | |
176 | close (pfd); |
167 | close (pfd); |
177 | } |
168 | } |
178 | } |
169 | } |
179 | } |
170 | } |
180 | #endif |
171 | #endif |
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172 | |
181 | #ifdef PTYS_ARE_SEARCHED |
173 | #ifdef PTYS_ARE_SEARCHED |
182 | { |
174 | { |
183 | const char *c1, *c2; |
175 | const char *c1, *c2; |
184 | char pty_name[] = "/dev/pty??"; |
176 | char pty_name[] = "/dev/pty??"; |
185 | char tty_name[] = "/dev/tty??"; |
177 | char tty_name[] = "/dev/tty??"; |
186 | |
178 | |
187 | # ifndef PTYCHAR1 |
179 | # ifndef PTYCHAR1 |
188 | # define PTYCHAR1 "pqrstuvwxyz" |
180 | # define PTYCHAR1 "pqrstuvwxyz" |
189 | # endif |
181 | # endif |
190 | # ifndef PTYCHAR2 |
182 | # ifndef PTYCHAR2 |
… | |
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204 | if (access (tty_name, R_OK | W_OK) == 0) |
196 | if (access (tty_name, R_OK | W_OK) == 0) |
205 | { |
197 | { |
206 | *ttydev = strdup (tty_name); |
198 | *ttydev = strdup (tty_name); |
207 | return pfd; |
199 | return pfd; |
208 | } |
200 | } |
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201 | |
209 | close (pfd); |
202 | close (pfd); |
210 | } |
203 | } |
211 | } |
204 | } |
212 | } |
205 | } |
213 | } |
206 | } |
214 | #endif |
207 | #endif |
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208 | |
215 | return -1; |
209 | return -1; |
216 | } |
210 | } |
217 | |
211 | |
218 | /*----------------------------------------------------------------------*/ |
212 | /*----------------------------------------------------------------------*/ |
219 | /* |
213 | /* |
220 | * Returns tty file descriptor, or -1 on failure |
214 | * Returns tty file descriptor, or -1 on failure |
221 | */ |
215 | */ |
222 | /* EXTPROTO */ |
216 | static int |
223 | int |
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224 | rxvt_get_tty (const char *ttydev) |
217 | get_tty (char *ttydev) |
225 | { |
218 | { |
226 | return open (ttydev, O_RDWR | O_NOCTTY, 0); |
219 | return open (ttydev, O_RDWR | O_NOCTTY, 0); |
227 | } |
220 | } |
228 | |
221 | |
229 | /*----------------------------------------------------------------------*/ |
222 | /*----------------------------------------------------------------------*/ |
230 | /* |
223 | /* |
231 | * 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 |
232 | */ |
225 | */ |
233 | /* EXTPROTO */ |
226 | static int |
234 | int |
227 | control_tty (int fd_tty) |
235 | rxvt_control_tty (int fd_tty, const char *ttydev) |
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236 | { |
228 | { |
237 | #ifndef __QNX__ |
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238 | int fd; |
229 | int fd; |
239 | |
230 | |
240 | D_TTY ((stderr, "rxvt_control_tty (): pid: %d, tty fd: %d, dev: %s", getpid (), fd_tty, ttydev)); |
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241 | /* ---------------------------------------- */ |
231 | /* ---------------------------------------- */ |
242 | # ifdef HAVE_SETSID |
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243 | setsid (); |
232 | setsid (); |
244 | # endif |
233 | |
245 | # if defined(HAVE_SETPGID) |
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246 | setpgid (0, 0); |
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247 | # elif defined(HAVE_SETPGRP) |
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248 | setpgrp (0, 0); |
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249 | # endif |
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250 | /* ---------------------------------------- */ |
234 | /* ---------------------------------------- */ |
251 | # ifdef TIOCNOTTY |
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252 | |
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253 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
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254 | D_TTY ((stderr, "rxvt_control_tty (): Voiding tty associations: previous=%s", fd < 0 ? "no" : "yes")); |
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255 | if (fd >= 0) |
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256 | { |
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257 | ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ |
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258 | close (fd); |
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259 | } |
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260 | # endif |
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261 | /* ---------------------------------------- */ |
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262 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
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263 | D_TTY ((stderr, "rxvt_control_tty (): /dev/tty has controlling tty? %s", fd < 0 ? "no (good)" : "yes (bad)")); |
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264 | if (fd >= 0) |
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265 | close (fd); /* ouch: still have controlling tty */ |
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266 | /* ---------------------------------------- */ |
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267 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
235 | # if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
268 | /* |
236 | /* |
269 | * Push STREAMS modules: |
237 | * Push STREAMS modules: |
270 | * ptem: pseudo-terminal hardware emulation module. |
238 | * ptem: pseudo-terminal hardware emulation module. |
271 | * ldterm: standard terminal line discipline. |
239 | * ldterm: standard terminal line discipline. |
272 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
240 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
… | |
… | |
280 | * documentation is really unclear about whether it is any close () on |
248 | * documentation is really unclear about whether it is any close () on |
281 | * 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 |
282 | * 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 |
283 | * through - Geoff Wing |
251 | * through - Geoff Wing |
284 | */ |
252 | */ |
285 | # ifdef HAVE_ISASTREAM |
253 | # ifdef HAVE_ISASTREAM |
286 | if (isastream (fd_tty) == 1) |
254 | if (isastream (fd_tty) == 1) |
287 | # endif |
255 | # endif |
288 | { |
256 | { |
289 | D_TTY ((stderr, "rxvt_control_tty (): Pushing STREAMS modules")); |
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290 | ioctl (fd_tty, I_PUSH, "ptem"); |
257 | ioctl (fd_tty, I_PUSH, "ptem"); |
291 | ioctl (fd_tty, I_PUSH, "ldterm"); |
258 | ioctl (fd_tty, I_PUSH, "ldterm"); |
292 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
259 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
293 | } |
260 | } |
294 | #endif |
261 | # endif |
295 | /* ---------------------------------------- */ |
262 | /* ---------------------------------------- */ |
296 | # if defined(TIOCSCTTY) |
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297 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
263 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
298 | D_TTY ((stderr, "rxvt_control_tty (): ioctl (..,TIOCSCTTY): %d", fd)); |
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299 | # elif defined(TIOCSETCTTY) |
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300 | fd = ioctl (fd_tty, TIOCSETCTTY, NULL); |
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301 | D_TTY ((stderr, "rxvt_control_tty (): ioctl (..,TIOCSETCTTY): %d", fd)); |
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302 | # else |
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303 | fd = open (ttydev, O_RDWR); |
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304 | D_TTY ((stderr, "rxvt_control_tty (): tty open%s", fd < 0 ? " failure" : "ed OK")); |
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305 | if (fd >= 0) |
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306 | close (fd); |
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307 | # endif |
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308 | /* ---------------------------------------- */ |
264 | /* ---------------------------------------- */ |
309 | fd = open ("/dev/tty", O_WRONLY); |
265 | fd = open ("/dev/tty", O_WRONLY); |
310 | D_TTY ((stderr, "rxvt_control_tty (): do we have controlling tty now: %s", fd < 0 ? "no (fatal)" : "yes (good)")); |
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311 | if (fd < 0) |
266 | if (fd < 0) |
312 | return -1; /* fatal */ |
267 | return -1; /* fatal */ |
313 | close (fd); |
268 | close (fd); |
314 | /* ---------------------------------------- */ |
269 | /* ---------------------------------------- */ |
315 | D_TTY ((stderr, "rxvt_control_tty (): tcgetpgrp (): %d getpgrp (): %d", tcgetpgrp (fd_tty), getpgrp ())); |
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316 | /* ---------------------------------------- */ |
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317 | #endif /* ! __QNX__ */ |
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318 | |
270 | |
319 | return 0; |
271 | return 0; |
320 | } |
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 | } |
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378 | # else |
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379 | chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)); |
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380 | chown (name, 0, 0); |
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381 | # endif |
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382 | |
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383 | } |
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384 | |
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385 | rxvt_privileges (IGNORE); |
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386 | } |
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387 | #endif |
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388 | |
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389 | rxvt_ptytty_unix::rxvt_ptytty_unix () |
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390 | { |
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391 | pty = tty = -1; |
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392 | name = 0; |
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393 | #ifndef NO_SETOWNER_TTYDEV |
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394 | saved = false; |
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395 | #endif |
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396 | #if UTMP_SUPPORT |
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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) |
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427 | return false; |
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428 | |
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429 | fcntl (pty, F_SETFL, O_NONBLOCK); |
|
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430 | |
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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) |
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439 | { |
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440 | put (); |
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441 | return false; |
|
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442 | } |
|
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443 | } |
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444 | |
|
|
445 | return true; |
|
|
446 | } |
|
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447 | |
|
|
448 | // a "factory" *g* |
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|
449 | rxvt_ptytty *rxvt_new_ptytty () |
|
|
450 | { |
|
|
451 | return new rxvt_ptytty_unix; |
|
|
452 | } |
|
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453 | |
321 | /*----------------------- end-of-file (C source) -----------------------*/ |
454 | /*----------------------- end-of-file (C source) -----------------------*/ |
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|
455 | |