… | |
… | |
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> |
7 | * Copyright (c) 2004 Marc Lehmann <pcg@goof.com> |
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. |
… | |
… | |
22 | *---------------------------------------------------------------------*/ |
22 | *---------------------------------------------------------------------*/ |
23 | |
23 | |
24 | #include "../config.h" /* NECESSARY */ |
24 | #include "../config.h" /* NECESSARY */ |
25 | #include "rxvt.h" |
25 | #include "rxvt.h" |
26 | |
26 | |
27 | #ifdef HAVE_STDLIB_H |
|
|
28 | # include <cstdlib> |
27 | #include <cstdlib> |
29 | #endif |
28 | #include <cstring> |
30 | #ifdef HAVE_SYS_TYPES_H |
29 | |
31 | # include <sys/types.h> |
30 | #include <sys/types.h> |
32 | #endif |
31 | #include <sys/socket.h> |
33 | #ifdef HAVE_UNISTD_H |
|
|
34 | # include <unistd.h> |
32 | #include <unistd.h> |
35 | #endif |
|
|
36 | #if defined(HAVE_STRING_H) |
|
|
37 | # include <cstring> |
|
|
38 | #endif |
|
|
39 | #ifdef HAVE_FCNTL_H |
|
|
40 | # include <fcntl.h> |
33 | #include <fcntl.h> |
41 | #endif |
34 | |
42 | #ifdef HAVE_SYS_IOCTL_H |
35 | #ifdef HAVE_SYS_IOCTL_H |
43 | # include <sys/ioctl.h> |
36 | # include <sys/ioctl.h> |
44 | #endif |
37 | #endif |
45 | #if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H) |
38 | #if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H) |
46 | # include <sys/stropts.h> /* for I_PUSH */ |
39 | # include <sys/stropts.h> /* for I_PUSH */ |
47 | #endif |
40 | #endif |
48 | #ifdef HAVE_ISASTREAM |
41 | #ifdef HAVE_ISASTREAM |
49 | # include <stropts.h> |
42 | # include <stropts.h> |
50 | #endif |
43 | #endif |
51 | #ifdef HAVE_PTY_H |
44 | #if defined(HAVE_PTY_H) |
52 | # include <pty.h> |
45 | # include <pty.h> |
53 | #endif |
46 | #elif defined(HAVE_LIBUTIL_H) |
54 | |
|
|
55 | // better do this via configure, but.... |
|
|
56 | #if defined(__FreeBSD__) |
|
|
57 | # include <libutil.h> |
47 | # include <libutil.h> |
58 | #elif defined(__DARWIN__) || (defined (__MACH__) && defined (__APPLE__)) |
48 | #elif defined(HAVE_UTIL_H) |
59 | # include <util.h> |
49 | # include <util.h> |
60 | #endif |
50 | #endif |
61 | |
51 | |
62 | #include <cstdio> |
52 | #include <cstdio> |
63 | #include <grp.h> |
53 | #include <grp.h> |
|
|
54 | |
|
|
55 | #include "rxvtutil.h" |
|
|
56 | #include "fdpass.h" |
|
|
57 | #include "ptytty.h" |
|
|
58 | |
|
|
59 | ///////////////////////////////////////////////////////////////////////////// |
64 | |
60 | |
65 | /* ------------------------------------------------------------------------- * |
61 | /* ------------------------------------------------------------------------- * |
66 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
62 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
67 | * ------------------------------------------------------------------------- */ |
63 | * ------------------------------------------------------------------------- */ |
68 | /* |
64 | /* |
69 | * Returns pty file descriptor, or -1 on failure |
65 | * Returns pty file descriptor, or -1 on failure |
70 | * If successful, ttydev is set to the name of the slave device. |
66 | * If successful, ttydev is set to the name of the slave device. |
71 | * fd_tty _may_ also be set to an open fd to the slave device |
67 | * fd_tty _may_ also be set to an open fd to the slave device |
72 | */ |
68 | */ |
73 | static int |
69 | static inline int |
74 | get_pty (int *fd_tty, char **ttydev) |
70 | get_pty_streams (int *fd_tty, char **ttydev) |
75 | { |
71 | { |
|
|
72 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
|
|
73 | # if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_POSIX) || defined(PTYS_ARE_PTMX) |
76 | int pfd; |
74 | int pfd; |
77 | |
75 | |
|
|
76 | # if defined(PTYS_ARE_GETPT) |
|
|
77 | pfd = getpt(); |
|
|
78 | # elif defined(PTYS_ARE_POSIX) |
|
|
79 | pfd = posix_openpt (O_RDWR); |
|
|
80 | # else |
|
|
81 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
|
|
82 | # endif |
|
|
83 | if (pfd >= 0) |
|
|
84 | { |
|
|
85 | if (grantpt (pfd) == 0 /* change slave permissions */ |
|
|
86 | && unlockpt (pfd) == 0) |
|
|
87 | { /* slave now unlocked */ |
|
|
88 | *ttydev = strdup (ptsname (pfd)); /* get slave's name */ |
|
|
89 | return pfd; |
|
|
90 | } |
|
|
91 | |
|
|
92 | close (pfd); |
|
|
93 | } |
|
|
94 | # endif |
|
|
95 | #endif |
|
|
96 | |
|
|
97 | return -1; |
|
|
98 | } |
|
|
99 | |
|
|
100 | static inline int |
|
|
101 | get_pty_openpty (int *fd_tty, char **ttydev) |
|
|
102 | { |
78 | #ifdef PTYS_ARE_OPENPTY |
103 | #ifdef PTYS_ARE_OPENPTY |
|
|
104 | int pfd; |
|
|
105 | int res; |
79 | char tty_name[sizeof "/dev/pts/????\0"]; |
106 | char tty_name[sizeof "/dev/pts/????\0"]; |
80 | |
107 | |
81 | if (openpty (&pfd, fd_tty, tty_name, NULL, NULL) != -1) |
108 | res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); |
|
|
109 | if (res != -1) |
82 | { |
110 | { |
83 | *ttydev = strdup (tty_name); |
111 | *ttydev = strdup (tty_name); |
84 | return pfd; |
112 | return pfd; |
85 | } |
113 | } |
86 | #endif |
114 | #endif |
87 | |
115 | |
|
|
116 | return -1; |
|
|
117 | } |
|
|
118 | |
|
|
119 | static inline int |
|
|
120 | get_pty__getpty (int *fd_tty, char **ttydev) |
|
|
121 | { |
88 | #ifdef PTYS_ARE__GETPTY |
122 | #ifdef PTYS_ARE__GETPTY |
|
|
123 | int pfd; |
|
|
124 | |
89 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
125 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
90 | if (*ttydev != NULL) |
126 | if (*ttydev != NULL) |
91 | return pfd; |
127 | return pfd; |
92 | #endif |
128 | #endif |
93 | |
129 | |
94 | #ifdef PTYS_ARE_GETPTY |
130 | return -1; |
95 | char *ptydev; |
131 | } |
96 | |
132 | |
97 | while ((ptydev = getpty ()) != NULL) |
133 | static inline int |
98 | if ((pfd = open (ptydev, O_RDWR | O_NOCTTY, 0)) >= 0) |
134 | get_pty_ptc (int *fd_tty, char **ttydev) |
99 | { |
135 | { |
100 | *ttydev = ptydev; |
|
|
101 | return pfd; |
|
|
102 | } |
|
|
103 | #endif |
|
|
104 | |
|
|
105 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
|
|
106 | # if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_PTMX) |
|
|
107 | |
|
|
108 | { |
|
|
109 | # ifdef PTYS_ARE_GETPT |
|
|
110 | pfd = getpt (); |
|
|
111 | # else |
|
|
112 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
|
|
113 | # endif |
|
|
114 | |
|
|
115 | if (pfd >= 0) |
|
|
116 | { |
|
|
117 | if (grantpt (pfd) == 0 /* change slave permissions */ |
|
|
118 | && unlockpt (pfd) == 0) |
|
|
119 | { /* slave now unlocked */ |
|
|
120 | *ttydev = strdup (ptsname (pfd)); /* get slave's name */ |
|
|
121 | return pfd; |
|
|
122 | } |
|
|
123 | close (pfd); |
|
|
124 | } |
|
|
125 | } |
|
|
126 | # endif |
|
|
127 | #endif |
|
|
128 | |
|
|
129 | #ifdef PTYS_ARE_PTC |
136 | #ifdef PTYS_ARE_PTC |
|
|
137 | int pfd; |
|
|
138 | |
130 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
139 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
131 | { |
140 | { |
132 | *ttydev = strdup (ttyname (pfd)); |
141 | *ttydev = strdup (ttyname (pfd)); |
133 | return pfd; |
142 | return pfd; |
134 | } |
143 | } |
135 | #endif |
144 | #endif |
136 | |
145 | |
|
|
146 | return -1; |
|
|
147 | } |
|
|
148 | |
|
|
149 | static inline int |
|
|
150 | get_pty_clone (int *fd_tty, char **ttydev) |
|
|
151 | { |
137 | #ifdef PTYS_ARE_CLONE |
152 | #ifdef PTYS_ARE_CLONE |
|
|
153 | int pfd; |
|
|
154 | |
138 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
155 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
139 | { |
156 | { |
140 | *ttydev = strdup (ptsname (pfd)); |
157 | *ttydev = strdup (ptsname (pfd)); |
141 | return pfd; |
158 | return pfd; |
142 | } |
159 | } |
143 | #endif |
160 | #endif |
144 | |
161 | |
|
|
162 | return -1; |
|
|
163 | } |
|
|
164 | |
|
|
165 | static inline int |
|
|
166 | get_pty_numeric (int *fd_tty, char **ttydev) |
|
|
167 | { |
145 | #ifdef PTYS_ARE_NUMERIC |
168 | #ifdef PTYS_ARE_NUMERIC |
146 | { |
169 | int pfd; |
147 | int idx; |
170 | int idx; |
148 | char *c1, *c2; |
171 | char *c1, *c2; |
149 | char pty_name[] = "/dev/ptyp???"; |
172 | char pty_name[] = "/dev/ptyp???"; |
150 | char tty_name[] = "/dev/ttyp???"; |
173 | char tty_name[] = "/dev/ttyp???"; |
151 | |
174 | |
152 | c1 = &(pty_name[sizeof (pty_name) - 4]); |
175 | c1 = &(pty_name[sizeof (pty_name) - 4]); |
153 | c2 = &(tty_name[sizeof (tty_name) - 4]); |
176 | c2 = &(tty_name[sizeof (tty_name) - 4]); |
|
|
177 | |
154 | for (idx = 0; idx < 256; idx++) |
178 | for (idx = 0; idx < 256; idx++) |
155 | { |
179 | { |
156 | sprintf (c1, "%d", idx); |
180 | sprintf (c1, "%d", idx); |
157 | sprintf (c2, "%d", idx); |
181 | sprintf (c2, "%d", idx); |
|
|
182 | |
158 | if (access (tty_name, F_OK) < 0) |
183 | if (access (tty_name, F_OK) < 0) |
159 | { |
184 | { |
160 | idx = 256; |
185 | idx = 256; |
161 | break; |
186 | break; |
162 | } |
187 | } |
163 | |
188 | |
164 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
189 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
165 | { |
190 | { |
166 | if (access (tty_name, R_OK | W_OK) == 0) |
191 | if (access (tty_name, R_OK | W_OK) == 0) |
167 | { |
192 | { |
168 | *ttydev = strdup (tty_name); |
193 | *ttydev = strdup (tty_name); |
169 | return pfd; |
194 | return pfd; |
170 | } |
195 | } |
171 | |
196 | |
172 | close (pfd); |
197 | close (pfd); |
173 | } |
198 | } |
174 | } |
199 | } |
175 | } |
|
|
176 | #endif |
200 | #endif |
177 | |
201 | |
|
|
202 | return -1; |
|
|
203 | } |
|
|
204 | |
|
|
205 | static inline int |
|
|
206 | get_pty_searched (int *fd_tty, char **ttydev) |
|
|
207 | { |
178 | #ifdef PTYS_ARE_SEARCHED |
208 | #ifdef PTYS_ARE_SEARCHED |
179 | { |
|
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180 | const char *c1, *c2; |
|
|
181 | char pty_name[] = "/dev/pty??"; |
|
|
182 | char tty_name[] = "/dev/tty??"; |
|
|
183 | |
|
|
184 | # ifndef PTYCHAR1 |
209 | # ifndef PTYCHAR1 |
185 | # define PTYCHAR1 "pqrstuvwxyz" |
210 | # define PTYCHAR1 "pqrstuvwxyz" |
186 | # endif |
211 | # endif |
187 | # ifndef PTYCHAR2 |
212 | # ifndef PTYCHAR2 |
188 | # define PTYCHAR2 "0123456789abcdef" |
213 | # define PTYCHAR2 "0123456789abcdef" |
189 | # endif |
214 | # endif |
|
|
215 | int pfd; |
|
|
216 | const char *c1, *c2; |
|
|
217 | char pty_name[] = "/dev/pty??"; |
|
|
218 | char tty_name[] = "/dev/tty??"; |
190 | |
219 | |
191 | for (c1 = PTYCHAR1; *c1; c1++) |
220 | for (c1 = PTYCHAR1; *c1; c1++) |
192 | { |
221 | { |
193 | pty_name[ (sizeof (pty_name) - 3)] = |
222 | pty_name[ (sizeof (pty_name) - 3)] = |
194 | tty_name[ (sizeof (pty_name) - 3)] = *c1; |
223 | tty_name[ (sizeof (pty_name) - 3)] = *c1; |
|
|
224 | |
195 | for (c2 = PTYCHAR2; *c2; c2++) |
225 | for (c2 = PTYCHAR2; *c2; c2++) |
196 | { |
226 | { |
197 | pty_name[ (sizeof (pty_name) - 2)] = |
227 | pty_name[ (sizeof (pty_name) - 2)] = |
198 | tty_name[ (sizeof (pty_name) - 2)] = *c2; |
228 | tty_name[ (sizeof (pty_name) - 2)] = *c2; |
|
|
229 | |
199 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
230 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
200 | { |
231 | { |
201 | if (access (tty_name, R_OK | W_OK) == 0) |
232 | if (access (tty_name, R_OK | W_OK) == 0) |
202 | { |
233 | { |
203 | *ttydev = strdup (tty_name); |
234 | *ttydev = strdup (tty_name); |
204 | return pfd; |
235 | return pfd; |
205 | } |
236 | } |
206 | |
237 | |
207 | close (pfd); |
238 | close (pfd); |
208 | } |
239 | } |
209 | } |
240 | } |
210 | } |
241 | } |
211 | } |
|
|
212 | #endif |
242 | #endif |
|
|
243 | |
|
|
244 | return -1; |
|
|
245 | } |
|
|
246 | |
|
|
247 | static int |
|
|
248 | get_pty (int *fd_tty, char **ttydev) |
|
|
249 | { |
|
|
250 | int pfd; |
|
|
251 | |
|
|
252 | if ((pfd = get_pty_streams (fd_tty, ttydev)) != -1 |
|
|
253 | || (pfd = get_pty_openpty (fd_tty, ttydev)) != -1 |
|
|
254 | || (pfd = get_pty__getpty (fd_tty, ttydev)) != -1 |
|
|
255 | || (pfd = get_pty_ptc (fd_tty, ttydev)) != -1 |
|
|
256 | || (pfd = get_pty_clone (fd_tty, ttydev)) != -1 |
|
|
257 | || (pfd = get_pty_numeric (fd_tty, ttydev)) != -1 |
|
|
258 | || (pfd = get_pty_searched (fd_tty, ttydev)) != -1) |
|
|
259 | return pfd; |
213 | |
260 | |
214 | return -1; |
261 | return -1; |
215 | } |
262 | } |
216 | |
263 | |
217 | /*----------------------------------------------------------------------*/ |
264 | /*----------------------------------------------------------------------*/ |
… | |
… | |
227 | /*----------------------------------------------------------------------*/ |
274 | /*----------------------------------------------------------------------*/ |
228 | /* |
275 | /* |
229 | * Make our tty a controlling tty so that /dev/tty points to us |
276 | * Make our tty a controlling tty so that /dev/tty points to us |
230 | */ |
277 | */ |
231 | static int |
278 | static int |
232 | control_tty (int fd_tty, const char *ttydev) |
279 | control_tty (int fd_tty) |
233 | { |
280 | { |
234 | #ifndef __QNX__ |
|
|
235 | int fd; |
|
|
236 | |
|
|
237 | /* ---------------------------------------- */ |
|
|
238 | # ifdef HAVE_SETSID |
|
|
239 | setsid (); |
281 | setsid (); |
240 | # endif |
|
|
241 | # if defined(HAVE_SETPGID) |
|
|
242 | setpgid (0, 0); |
|
|
243 | # elif defined(HAVE_SETPGRP) |
|
|
244 | setpgrp (0, 0); |
|
|
245 | # endif |
|
|
246 | |
282 | |
247 | /* ---------------------------------------- */ |
|
|
248 | # ifdef TIOCNOTTY |
|
|
249 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
|
|
250 | if (fd >= 0) |
|
|
251 | { |
|
|
252 | ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ |
|
|
253 | close (fd); |
|
|
254 | } |
|
|
255 | # endif |
|
|
256 | |
|
|
257 | /* ---------------------------------------- */ |
|
|
258 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
|
|
259 | if (fd >= 0) |
|
|
260 | close (fd); /* ouch: still have controlling tty */ |
|
|
261 | |
|
|
262 | /* ---------------------------------------- */ |
|
|
263 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
283 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
264 | /* |
284 | /* |
265 | * Push STREAMS modules: |
285 | * Push STREAMS modules: |
266 | * ptem: pseudo-terminal hardware emulation module. |
286 | * ptem: pseudo-terminal hardware emulation module. |
267 | * ldterm: standard terminal line discipline. |
287 | * ldterm: standard terminal line discipline. |
… | |
… | |
285 | ioctl (fd_tty, I_PUSH, "ptem"); |
305 | ioctl (fd_tty, I_PUSH, "ptem"); |
286 | ioctl (fd_tty, I_PUSH, "ldterm"); |
306 | ioctl (fd_tty, I_PUSH, "ldterm"); |
287 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
307 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
288 | } |
308 | } |
289 | #endif |
309 | #endif |
290 | /* ---------------------------------------- */ |
310 | |
291 | # if defined(TIOCSCTTY) |
|
|
292 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
311 | ioctl (fd_tty, TIOCSCTTY, NULL); |
293 | # elif defined(TIOCSETCTTY) |
312 | |
294 | fd = ioctl (fd_tty, TIOCSETCTTY, NULL); |
|
|
295 | # else |
|
|
296 | fd = open (ttydev, O_RDWR); |
|
|
297 | if (fd >= 0) |
|
|
298 | close (fd); |
|
|
299 | # endif |
|
|
300 | /* ---------------------------------------- */ |
|
|
301 | fd = open ("/dev/tty", O_WRONLY); |
313 | int fd = open ("/dev/tty", O_WRONLY); |
302 | if (fd < 0) |
314 | if (fd < 0) |
303 | return -1; /* fatal */ |
315 | return -1; /* fatal */ |
|
|
316 | |
304 | close (fd); |
317 | close (fd); |
305 | /* ---------------------------------------- */ |
|
|
306 | #endif /* ! __QNX__ */ |
|
|
307 | |
318 | |
308 | return 0; |
319 | return 0; |
309 | } |
320 | } |
310 | |
321 | |
311 | #ifndef NO_SETOWNER_TTYDEV |
322 | void |
|
|
323 | rxvt_ptytty::close_tty () |
|
|
324 | { |
|
|
325 | if (tty < 0) |
|
|
326 | return; |
|
|
327 | |
|
|
328 | close (tty); |
|
|
329 | tty = -1; |
|
|
330 | } |
|
|
331 | |
|
|
332 | bool |
|
|
333 | rxvt_ptytty::make_controlling_tty () |
|
|
334 | { |
|
|
335 | return control_tty (tty) >= 0; |
|
|
336 | } |
|
|
337 | |
|
|
338 | void |
|
|
339 | rxvt_ptytty::set_utf8_mode (bool on) |
|
|
340 | { |
|
|
341 | #ifdef IUTF8 |
|
|
342 | if (pty < 0) |
|
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343 | return; |
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|
344 | |
|
|
345 | struct termios tio; |
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|
346 | |
|
|
347 | if (tcgetattr (pty, &tio) != -1) |
|
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348 | { |
|
|
349 | tcflag_t new_cflag = tio.c_iflag; |
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|
350 | |
|
|
351 | if (on) |
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352 | new_cflag |= IUTF8; |
|
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353 | else |
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354 | new_cflag &= ~IUTF8; |
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355 | |
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356 | if (new_cflag != tio.c_iflag) |
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357 | { |
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358 | tio.c_iflag = new_cflag; |
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359 | tcsetattr (pty, TCSANOW, &tio); |
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360 | } |
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361 | } |
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362 | #endif |
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363 | } |
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|
364 | |
312 | static struct ttyconf { |
365 | static struct ttyconf { |
313 | gid_t gid; |
366 | gid_t gid; |
314 | mode_t mode; |
367 | mode_t mode; |
315 | |
368 | |
316 | ttyconf () |
369 | ttyconf () |
… | |
… | |
325 | } |
378 | } |
326 | else |
379 | else |
327 | #endif /* TTY_GID_SUPPORT */ |
380 | #endif /* TTY_GID_SUPPORT */ |
328 | { |
381 | { |
329 | mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH; |
382 | mode = S_IRUSR | S_IWUSR | S_IWGRP | S_IWOTH; |
330 | gid = getgid (); |
383 | gid = 0; |
331 | } |
384 | } |
332 | } |
385 | } |
333 | } ttyconf; |
386 | } ttyconf; |
334 | |
387 | |
335 | void |
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|
336 | rxvt_ptytty::privileges (rxvt_privaction action) |
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337 | { |
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338 | if (!name || !*name) |
|
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339 | return; |
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340 | |
|
|
341 | rxvt_privileges (RESTORE); |
|
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342 | |
|
|
343 | if (action == SAVE) |
|
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344 | { |
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345 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
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346 | /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */ |
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347 | if (lstat (name, &savestat) < 0) /* you lose out */ |
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348 | ; |
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349 | else |
|
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350 | # endif |
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351 | { |
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352 | saved = true; |
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353 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
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354 | chmod (name, ttyconf.mode); |
|
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355 | # ifdef HAVE_REVOKE |
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356 | revoke (name); |
|
|
357 | # endif |
|
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358 | } |
|
|
359 | } |
|
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360 | else |
|
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361 | { /* action == RESTORE */ |
|
|
362 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
|
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363 | if (saved) |
|
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364 | { |
|
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365 | chmod (name, savestat.st_mode); |
|
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366 | chown (name, savestat.st_uid, savestat.st_gid); |
|
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367 | } |
|
|
368 | # else |
|
|
369 | chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)); |
|
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370 | chown (name, 0, 0); |
|
|
371 | # endif |
|
|
372 | |
|
|
373 | } |
|
|
374 | |
|
|
375 | rxvt_privileges (IGNORE); |
|
|
376 | } |
|
|
377 | #endif |
|
|
378 | |
|
|
379 | rxvt_ptytty::rxvt_ptytty () |
388 | rxvt_ptytty_unix::rxvt_ptytty_unix () |
380 | { |
389 | { |
381 | pty = tty = -1; |
390 | pty = tty = -1; |
382 | name = 0; |
391 | name = 0; |
383 | #ifndef NO_SETOWNER_TTYDEV |
392 | #if UTMP_SUPPORT |
384 | saved = false; |
393 | cmd_pid = 0; |
385 | #endif |
394 | #endif |
386 | } |
395 | } |
387 | |
396 | |
388 | rxvt_ptytty::~rxvt_ptytty () |
397 | rxvt_ptytty_unix::~rxvt_ptytty_unix () |
389 | { |
398 | { |
|
|
399 | #if UTMP_SUPPORT |
|
|
400 | logout (); |
|
|
401 | #endif |
390 | put (); |
402 | put (); |
391 | } |
403 | } |
392 | |
404 | |
393 | void |
405 | void |
394 | |
|
|
395 | rxvt_ptytty::close_tty () |
|
|
396 | { |
|
|
397 | if (tty >= 0) close (tty); |
|
|
398 | tty = -1; |
|
|
399 | } |
|
|
400 | |
|
|
401 | void |
|
|
402 | rxvt_ptytty::put () |
406 | rxvt_ptytty_unix::put () |
403 | { |
407 | { |
404 | #ifndef NO_SETOWNER_TTYDEV |
408 | chmod (name, RESTORE_TTY_MODE); |
405 | if (tty >= 0) |
409 | chown (name, 0, ttyconf.gid); |
406 | privileges (RESTORE); |
|
|
407 | #endif |
|
|
408 | |
410 | |
409 | if (pty >= 0) close (pty); |
411 | if (pty >= 0) close (pty); |
410 | close_tty (); |
412 | close_tty (); |
411 | free (name); |
413 | free (name); |
412 | |
414 | |
413 | pty = tty = -1; |
415 | pty = tty = -1; |
414 | name = 0; |
416 | name = 0; |
415 | } |
417 | } |
416 | |
418 | |
417 | bool |
419 | bool |
418 | rxvt_ptytty::make_controlling_tty () |
|
|
419 | { |
|
|
420 | return control_tty (tty, name) >= 0; |
|
|
421 | } |
|
|
422 | |
|
|
423 | bool |
|
|
424 | rxvt_ptytty::get () |
420 | rxvt_ptytty_unix::get () |
425 | { |
421 | { |
426 | /* get master (pty) */ |
422 | /* get master (pty) */ |
427 | if ((pty = get_pty (&tty, &name)) < 0) |
423 | if ((pty = get_pty (&tty, &name)) < 0) |
428 | return false; |
424 | return false; |
429 | |
425 | |
… | |
… | |
431 | |
427 | |
432 | /* get slave (tty) */ |
428 | /* get slave (tty) */ |
433 | if (tty < 0) |
429 | if (tty < 0) |
434 | { |
430 | { |
435 | #ifndef NO_SETOWNER_TTYDEV |
431 | #ifndef NO_SETOWNER_TTYDEV |
436 | privileges (SAVE); |
432 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
|
|
433 | chmod (name, ttyconf.mode); |
|
|
434 | # ifdef HAVE_REVOKE |
|
|
435 | revoke (name); |
|
|
436 | # endif |
437 | #endif |
437 | #endif |
438 | |
438 | |
439 | if ((tty = get_tty (name)) < 0) |
439 | if ((tty = get_tty (name)) < 0) |
440 | { |
440 | { |
441 | put (); |
441 | put (); |
… | |
… | |
444 | } |
444 | } |
445 | |
445 | |
446 | return true; |
446 | return true; |
447 | } |
447 | } |
448 | |
448 | |
|
|
449 | #if PTYTTY_HELPER |
|
|
450 | |
|
|
451 | static int sock_fd; |
|
|
452 | static int pid; |
|
|
453 | |
|
|
454 | struct command |
|
|
455 | { |
|
|
456 | enum { get, login, destroy } type; |
|
|
457 | |
|
|
458 | rxvt_ptytty *id; |
|
|
459 | |
|
|
460 | bool login_shell; |
|
|
461 | int cmd_pid; |
|
|
462 | char hostname[512]; // arbitrary, but should be plenty |
|
|
463 | }; |
|
|
464 | |
|
|
465 | struct rxvt_ptytty_proxy : zero_initialized, rxvt_ptytty |
|
|
466 | { |
|
|
467 | rxvt_ptytty *id; |
|
|
468 | |
|
|
469 | ~rxvt_ptytty_proxy (); |
|
|
470 | |
|
|
471 | bool get (); |
|
|
472 | void login (int cmd_pid, bool login_shell, const char *hostname); |
|
|
473 | }; |
|
|
474 | |
|
|
475 | bool |
|
|
476 | rxvt_ptytty_proxy::get () |
|
|
477 | { |
|
|
478 | command cmd; |
|
|
479 | |
|
|
480 | cmd.type = command::get; |
|
|
481 | |
|
|
482 | write (sock_fd, &cmd, sizeof (cmd)); |
|
|
483 | |
|
|
484 | if (read (sock_fd, &id, sizeof (id)) != sizeof (id)) |
|
|
485 | rxvt_fatal ("protocol error while creating pty using helper process, aborting.\n"); |
|
|
486 | |
|
|
487 | if (!id) |
|
|
488 | return false; |
|
|
489 | |
|
|
490 | if ((pty = rxvt_recv_fd (sock_fd)) < 0 |
|
|
491 | || (tty = rxvt_recv_fd (sock_fd)) < 0) |
|
|
492 | rxvt_fatal ("protocol error while reading pty/tty fds from helper process, aborting.\n"); |
|
|
493 | |
|
|
494 | return true; |
|
|
495 | } |
|
|
496 | |
449 | void |
497 | void |
450 | rxvt_ptytty::set_utf8_mode (bool on) |
498 | rxvt_ptytty_proxy::login (int cmd_pid, bool login_shell, const char *hostname) |
451 | { |
499 | { |
452 | #ifdef IUTF8 |
500 | command cmd; |
453 | if (pty != -1) |
|
|
454 | { |
|
|
455 | struct termios tio; |
|
|
456 | |
501 | |
457 | if (tcgetattr (pty, &tio) != -1) |
502 | cmd.type = command::login; |
|
|
503 | cmd.id = id; |
|
|
504 | cmd.cmd_pid = cmd_pid; |
|
|
505 | cmd.login_shell = login_shell; |
|
|
506 | strncpy (cmd.hostname, hostname, sizeof (cmd.hostname)); |
|
|
507 | |
|
|
508 | write (sock_fd, &cmd, sizeof (cmd)); |
|
|
509 | } |
|
|
510 | |
|
|
511 | rxvt_ptytty_proxy::~rxvt_ptytty_proxy () |
|
|
512 | { |
|
|
513 | command cmd; |
|
|
514 | |
|
|
515 | cmd.type = command::destroy; |
|
|
516 | cmd.id = id; |
|
|
517 | |
|
|
518 | write (sock_fd, &cmd, sizeof (cmd)); |
|
|
519 | } |
|
|
520 | |
|
|
521 | static |
|
|
522 | void serve () |
|
|
523 | { |
|
|
524 | command cmd; |
|
|
525 | vector<rxvt_ptytty *> ptys; |
|
|
526 | |
|
|
527 | while (read (sock_fd, &cmd, sizeof (command)) == sizeof (command)) |
|
|
528 | { |
|
|
529 | if (cmd.type == command::get) |
|
|
530 | { |
|
|
531 | // -> id ptyfd ttyfd |
|
|
532 | cmd.id = new rxvt_ptytty_unix; |
|
|
533 | |
|
|
534 | if (cmd.id->get ()) |
458 | { |
535 | { |
459 | tcflag_t new_cflag = tio.c_iflag; |
536 | write (sock_fd, &cmd.id, sizeof (cmd.id)); |
|
|
537 | ptys.push_back (cmd.id); |
460 | |
538 | |
461 | if (on) |
539 | rxvt_send_fd (sock_fd, cmd.id->pty); |
462 | new_cflag |= IUTF8; |
540 | rxvt_send_fd (sock_fd, cmd.id->tty); |
|
|
541 | } |
463 | else |
542 | else |
464 | new_cflag &= ~IUTF8; |
|
|
465 | |
|
|
466 | if (new_cflag != tio.c_iflag) |
|
|
467 | { |
543 | { |
468 | tio.c_iflag = new_cflag; |
544 | delete cmd.id; |
469 | tcsetattr (pty, TCSANOW, &tio); |
545 | cmd.id = 0; |
|
|
546 | write (sock_fd, &cmd.id, sizeof (cmd.id)); |
470 | } |
547 | } |
471 | } |
548 | } |
|
|
549 | else if (cmd.type == command::login) |
|
|
550 | { |
|
|
551 | #if UTMP_SUPPORT |
|
|
552 | if (find (ptys.begin (), ptys.end (), cmd.id)) |
|
|
553 | { |
|
|
554 | cmd.hostname[sizeof (cmd.hostname) - 1] = 0; |
|
|
555 | cmd.id->login (cmd.cmd_pid, cmd.login_shell, cmd.hostname); |
|
|
556 | } |
|
|
557 | #endif |
|
|
558 | } |
|
|
559 | else if (cmd.type == command::destroy) |
|
|
560 | { |
|
|
561 | rxvt_ptytty **pty = find (ptys.begin (), ptys.end (), cmd.id); |
|
|
562 | |
|
|
563 | if (pty) |
|
|
564 | { |
|
|
565 | delete *pty; |
|
|
566 | ptys.erase (pty); |
|
|
567 | } |
|
|
568 | } |
|
|
569 | else |
|
|
570 | break; |
|
|
571 | } |
|
|
572 | |
|
|
573 | // destroy all ptys |
|
|
574 | for (rxvt_ptytty **i = ptys.end (); i-- > ptys.begin (); ) |
|
|
575 | delete *i; |
|
|
576 | } |
|
|
577 | |
|
|
578 | void rxvt_ptytty_server () |
|
|
579 | { |
|
|
580 | int sv[2]; |
|
|
581 | |
|
|
582 | if (socketpair (AF_UNIX, SOCK_STREAM, 0, sv)) |
|
|
583 | rxvt_fatal ("could not create socket to communicate with pty/sessiondb helper, aborting.\n"); |
|
|
584 | |
|
|
585 | pid = fork (); |
|
|
586 | |
|
|
587 | if (pid < 0) |
|
|
588 | rxvt_fatal ("could not create pty/sessiondb helper process, aborting.\n"); |
|
|
589 | |
|
|
590 | if (pid) |
472 | } |
591 | { |
|
|
592 | // client, urxvt |
|
|
593 | sock_fd = sv[0]; |
|
|
594 | close (sv[1]); |
|
|
595 | fcntl (sock_fd, F_SETFD, FD_CLOEXEC); |
|
|
596 | } |
|
|
597 | else |
|
|
598 | { |
|
|
599 | // server, pty-helper |
|
|
600 | sock_fd = sv[1]; |
|
|
601 | |
|
|
602 | for (int fd = 0; fd < 1023; fd++) |
|
|
603 | if (fd != sock_fd) |
|
|
604 | close (fd); |
|
|
605 | |
|
|
606 | serve (); |
|
|
607 | _exit (EXIT_SUCCESS); |
|
|
608 | } |
|
|
609 | } |
473 | #endif |
610 | #endif |
|
|
611 | |
|
|
612 | // a "factory" *g* |
|
|
613 | rxvt_ptytty * |
|
|
614 | rxvt_new_ptytty () |
|
|
615 | { |
|
|
616 | #if PTYTTY_HELPER |
|
|
617 | if (pid > 0) |
|
|
618 | // use helper process |
|
|
619 | return new rxvt_ptytty_proxy; |
|
|
620 | else |
|
|
621 | #endif |
|
|
622 | return new rxvt_ptytty_unix; |
474 | } |
623 | } |
475 | |
624 | |
476 | /*----------------------- end-of-file (C source) -----------------------*/ |
625 | /*----------------------- end-of-file (C source) -----------------------*/ |
477 | |
626 | |