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 <stdio.h> |
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36 | #ifdef HAVE_STDLIB_H |
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37 | # include <stdlib.h> |
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 <string.h> |
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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 | |
45 | #ifdef HAVE_ISASTREAM |
58 | #ifdef DEBUG_TTY |
46 | # include <stropts.h> |
59 | # define D_TTY(x) fprintf x ; fputc('\n', stderr) ; fflush(stderr) |
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60 | #else |
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61 | # define D_TTY(x) |
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62 | #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> |
63 | |
58 | |
64 | /* ------------------------------------------------------------------------- * |
59 | /* ------------------------------------------------------------------------- * |
65 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
60 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
66 | * ------------------------------------------------------------------------- */ |
61 | * ------------------------------------------------------------------------- */ |
67 | /* |
62 | /* |
68 | * Returns pty file descriptor, or -1 on failure |
63 | * Returns pty file descriptor, or -1 on failure |
69 | * If successful, ttydev is set to the name of the slave device. |
64 | * If successful, ttydev is set to the name of the slave device. |
70 | * fd_tty _may_ also be set to an open fd to the slave device |
65 | * fd_tty _may_ also be set to an open fd to the slave device |
71 | */ |
66 | */ |
72 | /* EXTPROTO */ |
67 | static int |
73 | int |
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74 | rxvt_get_pty (int *fd_tty, const char **ttydev) |
68 | get_pty (int *fd_tty, char **ttydev) |
75 | { |
69 | { |
76 | int pfd; |
70 | int pfd; |
77 | |
71 | |
78 | #ifdef PTYS_ARE_OPENPTY |
72 | #ifdef PTYS_ARE_OPENPTY |
79 | |
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80 | char tty_name[sizeof "/dev/pts/????\0"]; |
73 | char tty_name[sizeof "/dev/pts/????\0"]; |
81 | |
74 | |
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75 | rxvt_privileges(RESTORE); |
82 | if (openpty (&pfd, fd_tty, tty_name, NULL, NULL) != -1) |
76 | int res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); |
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77 | rxvt_privileges(IGNORE); |
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78 | |
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79 | if (res != -1) |
83 | { |
80 | { |
84 | *ttydev = strdup (tty_name); |
81 | *ttydev = strdup (tty_name); |
85 | return pfd; |
82 | return pfd; |
86 | } |
83 | } |
87 | #endif |
84 | #endif |
… | |
… | |
90 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
87 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
91 | if (*ttydev != NULL) |
88 | if (*ttydev != NULL) |
92 | return pfd; |
89 | return pfd; |
93 | #endif |
90 | #endif |
94 | |
91 | |
95 | #ifdef PTYS_ARE_GETPTY |
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96 | |
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97 | char *ptydev; |
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98 | |
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99 | while ((ptydev = getpty ()) != NULL) |
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100 | if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0) |
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101 | { |
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102 | *ttydev = ptydev; |
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103 | return pfd; |
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104 | } |
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105 | #endif |
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106 | |
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107 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
92 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
108 | # if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX) |
93 | # if defined(PTYS_ARE_POSIX) || defined(PTYS_ARE_PTMX) |
109 | |
94 | |
110 | { |
95 | { |
111 | # ifdef PTYS_ARE_GETPT |
96 | # ifdef PTYS_ARE_POSIX |
112 | pfd = getpt (); |
97 | pfd = posix_openpt (O_RDWR); |
113 | # else |
98 | # else |
114 | |
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115 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
99 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
116 | # endif |
100 | # endif |
117 | |
101 | |
118 | if (pfd >= 0) |
102 | if (pfd >= 0) |
119 | { |
103 | { |
120 | if (grantpt (pfd) == 0 /* change slave permissions */ |
104 | if (grantpt (pfd) == 0 /* change slave permissions */ |
121 | && unlockpt (pfd) == 0) |
105 | && unlockpt (pfd) == 0) |
122 | { /* slave now unlocked */ |
106 | { /* slave now unlocked */ |
123 | *ttydev = ptsname (pfd); /* get slave's name */ |
107 | *ttydev = strdup (ptsname (pfd)); /* get slave's name */ |
124 | return pfd; |
108 | return pfd; |
125 | } |
109 | } |
126 | close (pfd); |
110 | close (pfd); |
127 | } |
111 | } |
128 | } |
112 | } |
… | |
… | |
130 | #endif |
114 | #endif |
131 | |
115 | |
132 | #ifdef PTYS_ARE_PTC |
116 | #ifdef PTYS_ARE_PTC |
133 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
117 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
134 | { |
118 | { |
135 | *ttydev = ttyname (pfd); |
119 | *ttydev = strdup (ttyname (pfd)); |
136 | return pfd; |
120 | return pfd; |
137 | } |
121 | } |
138 | #endif |
122 | #endif |
139 | |
123 | |
140 | #ifdef PTYS_ARE_CLONE |
124 | #ifdef PTYS_ARE_CLONE |
141 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
125 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
142 | { |
126 | { |
143 | *ttydev = ptsname (pfd); |
127 | *ttydev = strdup (ptsname (pfd)); |
144 | return pfd; |
128 | return pfd; |
145 | } |
129 | } |
146 | #endif |
130 | #endif |
147 | |
131 | |
148 | #ifdef PTYS_ARE_NUMERIC |
132 | #ifdef PTYS_ARE_NUMERIC |
149 | { |
133 | { |
150 | int idx; |
134 | int idx; |
151 | char *c1, *c2; |
135 | char *c1, *c2; |
152 | char pty_name[] = "/dev/ptyp???"; |
136 | char pty_name[] = "/dev/ptyp???"; |
153 | char tty_name[] = "/dev/ttyp???"; |
137 | char tty_name[] = "/dev/ttyp???"; |
154 | |
138 | |
155 | c1 = & (pty_name[sizeof (pty_name) - 4]); |
139 | c1 = &(pty_name[sizeof (pty_name) - 4]); |
156 | c2 = & (tty_name[sizeof (tty_name) - 4]); |
140 | c2 = &(tty_name[sizeof (tty_name) - 4]); |
157 | for (idx = 0; idx < 256; idx++) |
141 | for (idx = 0; idx < 256; idx++) |
158 | { |
142 | { |
159 | sprintf (c1, "%d", idx); |
143 | sprintf (c1, "%d", idx); |
160 | sprintf (c2, "%d", idx); |
144 | sprintf (c2, "%d", idx); |
161 | if (access (tty_name, F_OK) < 0) |
145 | if (access (tty_name, F_OK) < 0) |
162 | { |
146 | { |
163 | idx = 256; |
147 | idx = 256; |
164 | break; |
148 | break; |
165 | } |
149 | } |
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150 | |
166 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
151 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
167 | { |
152 | { |
168 | if (access (tty_name, R_OK | W_OK) == 0) |
153 | if (access (tty_name, R_OK | W_OK) == 0) |
169 | { |
154 | { |
170 | *ttydev = strdup (tty_name); |
155 | *ttydev = strdup (tty_name); |
171 | return pfd; |
156 | return pfd; |
172 | } |
157 | } |
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158 | |
173 | close (pfd); |
159 | close (pfd); |
174 | } |
160 | } |
175 | } |
161 | } |
176 | } |
162 | } |
177 | #endif |
163 | #endif |
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164 | |
178 | #ifdef PTYS_ARE_SEARCHED |
165 | #ifdef PTYS_ARE_SEARCHED |
179 | { |
166 | { |
180 | const char *c1, *c2; |
167 | const char *c1, *c2; |
181 | char pty_name[] = "/dev/pty??"; |
168 | char pty_name[] = "/dev/pty??"; |
182 | char tty_name[] = "/dev/tty??"; |
169 | char tty_name[] = "/dev/tty??"; |
183 | |
170 | |
184 | # ifndef PTYCHAR1 |
171 | # ifndef PTYCHAR1 |
185 | # define PTYCHAR1 "pqrstuvwxyz" |
172 | # define PTYCHAR1 "pqrstuvwxyz" |
186 | # endif |
173 | # endif |
187 | # ifndef PTYCHAR2 |
174 | # ifndef PTYCHAR2 |
… | |
… | |
201 | if (access (tty_name, R_OK | W_OK) == 0) |
188 | if (access (tty_name, R_OK | W_OK) == 0) |
202 | { |
189 | { |
203 | *ttydev = strdup (tty_name); |
190 | *ttydev = strdup (tty_name); |
204 | return pfd; |
191 | return pfd; |
205 | } |
192 | } |
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193 | |
206 | close (pfd); |
194 | close (pfd); |
207 | } |
195 | } |
208 | } |
196 | } |
209 | } |
197 | } |
210 | } |
198 | } |
211 | #endif |
199 | #endif |
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200 | |
212 | return -1; |
201 | return -1; |
213 | } |
202 | } |
214 | |
203 | |
215 | /*----------------------------------------------------------------------*/ |
204 | /*----------------------------------------------------------------------*/ |
216 | /* |
205 | /* |
217 | * Returns tty file descriptor, or -1 on failure |
206 | * Returns tty file descriptor, or -1 on failure |
218 | */ |
207 | */ |
219 | /* EXTPROTO */ |
208 | static int |
220 | int |
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221 | rxvt_get_tty (const char *ttydev) |
209 | get_tty (char *ttydev) |
222 | { |
210 | { |
223 | return open (ttydev, O_RDWR | O_NOCTTY, 0); |
211 | return open (ttydev, O_RDWR | O_NOCTTY, 0); |
224 | } |
212 | } |
225 | |
213 | |
226 | /*----------------------------------------------------------------------*/ |
214 | /*----------------------------------------------------------------------*/ |
227 | /* |
215 | /* |
228 | * Make our tty a controlling tty so that /dev/tty points to us |
216 | * Make our tty a controlling tty so that /dev/tty points to us |
229 | */ |
217 | */ |
230 | /* EXTPROTO */ |
218 | static int |
231 | int |
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232 | rxvt_control_tty (int fd_tty, const char *ttydev) |
219 | control_tty (int fd_tty, const char *ttydev) |
233 | { |
220 | { |
234 | #ifndef __QNX__ |
221 | #ifndef __QNX__ |
235 | int fd; |
222 | int fd; |
236 | |
223 | |
237 | D_TTY ((stderr, "rxvt_control_tty (): pid: %d, tty fd: %d, dev: %s", getpid (), fd_tty, ttydev)); |
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238 | /* ---------------------------------------- */ |
224 | /* ---------------------------------------- */ |
239 | # ifdef HAVE_SETSID |
225 | # ifdef HAVE_SETSID |
240 | setsid (); |
226 | setsid (); |
241 | # endif |
227 | # endif |
242 | # if defined(HAVE_SETPGID) |
228 | # if defined(HAVE_SETPGID) |
243 | setpgid (0, 0); |
229 | setpgid (0, 0); |
244 | # elif defined(HAVE_SETPGRP) |
230 | # elif defined(HAVE_SETPGRP) |
245 | setpgrp (0, 0); |
231 | setpgrp (0, 0); |
246 | # endif |
232 | # endif |
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233 | |
247 | /* ---------------------------------------- */ |
234 | /* ---------------------------------------- */ |
248 | # ifdef TIOCNOTTY |
235 | # ifdef TIOCNOTTY |
249 | |
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250 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
236 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
251 | D_TTY ((stderr, "rxvt_control_tty (): Voiding tty associations: previous=%s", fd < 0 ? "no" : "yes")); |
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252 | if (fd >= 0) |
237 | if (fd >= 0) |
253 | { |
238 | { |
254 | ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ |
239 | ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ |
255 | close (fd); |
240 | close (fd); |
256 | } |
241 | } |
257 | # endif |
242 | # endif |
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243 | |
258 | /* ---------------------------------------- */ |
244 | /* ---------------------------------------- */ |
259 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
245 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
260 | D_TTY ((stderr, "rxvt_control_tty (): /dev/tty has controlling tty? %s", fd < 0 ? "no (good)" : "yes (bad)")); |
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261 | if (fd >= 0) |
246 | if (fd >= 0) |
262 | close (fd); /* ouch: still have controlling tty */ |
247 | close (fd); /* ouch: still have controlling tty */ |
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248 | |
263 | /* ---------------------------------------- */ |
249 | /* ---------------------------------------- */ |
264 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
250 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
265 | /* |
251 | /* |
266 | * Push STREAMS modules: |
252 | * Push STREAMS modules: |
267 | * ptem: pseudo-terminal hardware emulation module. |
253 | * ptem: pseudo-terminal hardware emulation module. |
… | |
… | |
281 | */ |
267 | */ |
282 | # ifdef HAVE_ISASTREAM |
268 | # ifdef HAVE_ISASTREAM |
283 | if (isastream (fd_tty) == 1) |
269 | if (isastream (fd_tty) == 1) |
284 | # endif |
270 | # endif |
285 | { |
271 | { |
286 | D_TTY ((stderr, "rxvt_control_tty (): Pushing STREAMS modules")); |
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287 | ioctl (fd_tty, I_PUSH, "ptem"); |
272 | ioctl (fd_tty, I_PUSH, "ptem"); |
288 | ioctl (fd_tty, I_PUSH, "ldterm"); |
273 | ioctl (fd_tty, I_PUSH, "ldterm"); |
289 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
274 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
290 | } |
275 | } |
291 | #endif |
276 | #endif |
292 | /* ---------------------------------------- */ |
277 | /* ---------------------------------------- */ |
293 | # if defined(TIOCSCTTY) |
278 | # if defined(TIOCSCTTY) |
294 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
279 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
295 | D_TTY ((stderr, "rxvt_control_tty (): ioctl (..,TIOCSCTTY): %d", fd)); |
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296 | # elif defined(TIOCSETCTTY) |
280 | # elif defined(TIOCSETCTTY) |
297 | fd = ioctl (fd_tty, TIOCSETCTTY, NULL); |
281 | fd = ioctl (fd_tty, TIOCSETCTTY, NULL); |
298 | D_TTY ((stderr, "rxvt_control_tty (): ioctl (..,TIOCSETCTTY): %d", fd)); |
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299 | # else |
282 | # else |
300 | fd = open (ttydev, O_RDWR); |
283 | fd = open (ttydev, O_RDWR); |
301 | D_TTY ((stderr, "rxvt_control_tty (): tty open%s", fd < 0 ? " failure" : "ed OK")); |
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302 | if (fd >= 0) |
284 | if (fd >= 0) |
303 | close (fd); |
285 | close (fd); |
304 | # endif |
286 | # endif |
305 | /* ---------------------------------------- */ |
287 | /* ---------------------------------------- */ |
306 | fd = open ("/dev/tty", O_WRONLY); |
288 | fd = open ("/dev/tty", O_WRONLY); |
307 | D_TTY ((stderr, "rxvt_control_tty (): do we have controlling tty now: %s", fd < 0 ? "no (fatal)" : "yes (good)")); |
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308 | if (fd < 0) |
289 | if (fd < 0) |
309 | return -1; /* fatal */ |
290 | return -1; /* fatal */ |
310 | close (fd); |
291 | close (fd); |
311 | /* ---------------------------------------- */ |
292 | /* ---------------------------------------- */ |
312 | D_TTY ((stderr, "rxvt_control_tty (): tcgetpgrp (): %d getpgrp (): %d", tcgetpgrp (fd_tty), getpgrp ())); |
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313 | /* ---------------------------------------- */ |
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314 | #endif /* ! __QNX__ */ |
293 | #endif /* ! __QNX__ */ |
315 | |
294 | |
316 | return 0; |
295 | return 0; |
317 | } |
296 | } |
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297 | |
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298 | #ifndef NO_SETOWNER_TTYDEV |
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299 | static struct ttyconf { |
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300 | gid_t gid; |
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301 | mode_t mode; |
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302 | |
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303 | ttyconf () |
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304 | { |
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305 | #ifdef TTY_GID_SUPPORT |
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306 | struct group *gr = getgrnam ("tty"); |
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307 | |
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308 | if (gr) |
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309 | { /* change group ownership of tty to "tty" */ |
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310 | mode = S_IRUSR | S_IWUSR | S_IWGRP; |
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311 | gid = gr->gr_gid; |
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312 | } |
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313 | else |
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314 | #endif /* TTY_GID_SUPPORT */ |
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315 | { |
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316 | mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH; |
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317 | gid = getgid (); |
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318 | } |
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319 | } |
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320 | } ttyconf; |
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321 | |
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322 | void |
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323 | rxvt_ptytty::privileges (rxvt_privaction action) |
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324 | { |
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325 | if (!name || !*name) |
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326 | return; |
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327 | |
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328 | rxvt_privileges (RESTORE); |
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329 | |
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330 | if (action == SAVE) |
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331 | { |
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332 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
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333 | /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */ |
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334 | if (lstat (name, &savestat) < 0) /* you lose out */ |
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335 | ; |
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336 | else |
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337 | # endif |
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338 | { |
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339 | saved = true; |
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340 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
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341 | chmod (name, ttyconf.mode); |
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342 | # ifdef HAVE_REVOKE |
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343 | revoke (name); |
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344 | # endif |
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345 | } |
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346 | } |
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347 | else |
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348 | { /* action == RESTORE */ |
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349 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
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350 | if (saved) |
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351 | { |
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352 | chmod (name, savestat.st_mode); |
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353 | chown (name, savestat.st_uid, savestat.st_gid); |
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354 | } |
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355 | # else |
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356 | chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)); |
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357 | chown (name, 0, 0); |
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358 | # endif |
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359 | |
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360 | } |
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361 | |
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362 | rxvt_privileges (IGNORE); |
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363 | } |
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364 | #endif |
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365 | |
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366 | rxvt_ptytty::rxvt_ptytty () |
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367 | { |
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368 | pty = tty = -1; |
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369 | name = 0; |
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370 | #ifndef NO_SETOWNER_TTYDEV |
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371 | saved = false; |
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372 | #endif |
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373 | } |
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374 | |
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375 | rxvt_ptytty::~rxvt_ptytty () |
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376 | { |
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377 | put (); |
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378 | } |
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379 | |
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380 | void |
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381 | |
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382 | rxvt_ptytty::close_tty () |
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383 | { |
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384 | if (tty < 0) |
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385 | return; |
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386 | |
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387 | close (tty); |
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388 | tty = -1; |
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389 | } |
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390 | |
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391 | void |
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392 | rxvt_ptytty::put () |
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393 | { |
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394 | #ifndef NO_SETOWNER_TTYDEV |
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395 | privileges (RESTORE); |
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396 | #endif |
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397 | |
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398 | if (pty >= 0) close (pty); |
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399 | close_tty (); |
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400 | free (name); |
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401 | |
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402 | pty = tty = -1; |
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403 | name = 0; |
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404 | } |
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405 | |
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406 | bool |
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407 | rxvt_ptytty::make_controlling_tty () |
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408 | { |
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409 | return control_tty (tty, name) >= 0; |
|
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410 | } |
|
|
411 | |
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|
412 | bool |
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413 | rxvt_ptytty::get () |
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414 | { |
|
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415 | /* get master (pty) */ |
|
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416 | if ((pty = get_pty (&tty, &name)) < 0) |
|
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417 | return false; |
|
|
418 | |
|
|
419 | fcntl (pty, F_SETFL, O_NONBLOCK); |
|
|
420 | |
|
|
421 | /* get slave (tty) */ |
|
|
422 | if (tty < 0) |
|
|
423 | { |
|
|
424 | #ifndef NO_SETOWNER_TTYDEV |
|
|
425 | privileges (SAVE); |
|
|
426 | #endif |
|
|
427 | |
|
|
428 | if ((tty = get_tty (name)) < 0) |
|
|
429 | { |
|
|
430 | put (); |
|
|
431 | return false; |
|
|
432 | } |
|
|
433 | } |
|
|
434 | |
|
|
435 | return true; |
|
|
436 | } |
|
|
437 | |
|
|
438 | void |
|
|
439 | rxvt_ptytty::set_utf8_mode (bool on) |
|
|
440 | { |
|
|
441 | #ifdef IUTF8 |
|
|
442 | if (pty < 0) |
|
|
443 | return; |
|
|
444 | |
|
|
445 | struct termios tio; |
|
|
446 | |
|
|
447 | if (tcgetattr (pty, &tio) != -1) |
|
|
448 | { |
|
|
449 | tcflag_t new_cflag = tio.c_iflag; |
|
|
450 | |
|
|
451 | if (on) |
|
|
452 | new_cflag |= IUTF8; |
|
|
453 | else |
|
|
454 | new_cflag &= ~IUTF8; |
|
|
455 | |
|
|
456 | if (new_cflag != tio.c_iflag) |
|
|
457 | { |
|
|
458 | tio.c_iflag = new_cflag; |
|
|
459 | tcsetattr (pty, TCSANOW, &tio); |
|
|
460 | } |
|
|
461 | } |
|
|
462 | #endif |
|
|
463 | } |
|
|
464 | |
318 | /*----------------------- end-of-file (C source) -----------------------*/ |
465 | /*----------------------- end-of-file (C source) -----------------------*/ |
|
|
466 | |