… | |
… | |
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 | # include <cstdlib> |
27 | #include <cstdlib> |
28 | # include <cstring> |
28 | #include <cstring> |
29 | |
29 | |
30 | #ifdef HAVE_SYS_TYPES_H |
|
|
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 | #ifdef HAVE_FCNTL_H |
|
|
37 | # include <fcntl.h> |
33 | #include <fcntl.h> |
38 | #endif |
34 | |
39 | #ifdef HAVE_SYS_IOCTL_H |
35 | #ifdef HAVE_SYS_IOCTL_H |
40 | # include <sys/ioctl.h> |
36 | # include <sys/ioctl.h> |
41 | #endif |
37 | #endif |
42 | #if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H) |
38 | #if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H) |
43 | # include <sys/stropts.h> /* for I_PUSH */ |
39 | # include <sys/stropts.h> /* for I_PUSH */ |
… | |
… | |
53 | # include <util.h> |
49 | # include <util.h> |
54 | #endif |
50 | #endif |
55 | |
51 | |
56 | #include <cstdio> |
52 | #include <cstdio> |
57 | #include <grp.h> |
53 | #include <grp.h> |
|
|
54 | |
|
|
55 | #include "rxvtutil.h" |
|
|
56 | #include "fdpass.h" |
|
|
57 | #include "ptytty.h" |
|
|
58 | |
|
|
59 | ///////////////////////////////////////////////////////////////////////////// |
58 | |
60 | |
59 | /* ------------------------------------------------------------------------- * |
61 | /* ------------------------------------------------------------------------- * |
60 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
62 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
61 | * ------------------------------------------------------------------------- */ |
63 | * ------------------------------------------------------------------------- */ |
62 | /* |
64 | /* |
63 | * Returns pty file descriptor, or -1 on failure |
65 | * Returns pty file descriptor, or -1 on failure |
64 | * 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. |
65 | * 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 |
66 | */ |
68 | */ |
67 | static int |
69 | static inline int |
68 | get_pty (int *fd_tty, char **ttydev) |
70 | get_pty_streams (int *fd_tty, char **ttydev) |
69 | { |
71 | { |
|
|
72 | #ifdef NO_SETOWNER_TTYDEV |
70 | int pfd; |
73 | int pfd; |
71 | |
74 | |
|
|
75 | # ifdef PTYS_ARE_GETPT |
|
|
76 | pfd = getpt(); |
|
|
77 | # else |
|
|
78 | # ifdef PTYS_ARE_POSIX |
|
|
79 | pfd = posix_openpt (O_RDWR); |
|
|
80 | # else |
|
|
81 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
|
|
82 | # endif |
|
|
83 | # endif |
|
|
84 | if (pfd >= 0) |
|
|
85 | { |
|
|
86 | if (grantpt (pfd) == 0 /* change slave permissions */ |
|
|
87 | && unlockpt (pfd) == 0) |
|
|
88 | { /* slave now unlocked */ |
|
|
89 | *ttydev = strdup (ptsname (pfd)); /* get slave's name */ |
|
|
90 | return pfd; |
|
|
91 | } |
|
|
92 | close (pfd); |
|
|
93 | } |
|
|
94 | #endif |
|
|
95 | return -1; |
|
|
96 | } |
|
|
97 | |
|
|
98 | static inline int |
|
|
99 | get_pty_openpty (int *fd_tty, char **ttydev) |
|
|
100 | { |
72 | #ifdef PTYS_ARE_OPENPTY |
101 | #ifdef PTYS_ARE_OPENPTY |
|
|
102 | int pfd; |
|
|
103 | int res; |
73 | char tty_name[sizeof "/dev/pts/????\0"]; |
104 | char tty_name[sizeof "/dev/pts/????\0"]; |
74 | |
105 | |
75 | rxvt_privileges(RESTORE); |
|
|
76 | int res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); |
106 | res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); |
77 | rxvt_privileges(IGNORE); |
|
|
78 | |
|
|
79 | if (res != -1) |
107 | if (res != -1) |
80 | { |
108 | { |
81 | *ttydev = strdup (tty_name); |
109 | *ttydev = strdup (tty_name); |
82 | return pfd; |
110 | return pfd; |
83 | } |
111 | } |
84 | #endif |
112 | #endif |
|
|
113 | return -1; |
|
|
114 | } |
85 | |
115 | |
|
|
116 | static inline int |
|
|
117 | get_pty__getpty (int *fd_tty, char **ttydev) |
|
|
118 | { |
86 | #ifdef PTYS_ARE__GETPTY |
119 | #ifdef PTYS_ARE__GETPTY |
|
|
120 | int pfd; |
|
|
121 | |
87 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
122 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
88 | if (*ttydev != NULL) |
123 | if (*ttydev != NULL) |
89 | return pfd; |
124 | return pfd; |
90 | #endif |
125 | #endif |
|
|
126 | return -1; |
|
|
127 | } |
91 | |
128 | |
92 | #if defined(HAVE_GRANTPT) && defined(HAVE_UNLOCKPT) |
129 | static inline int |
93 | # if defined(PTYS_ARE_GETPT) || defined(PTYS_ARE_POSIX) || defined(PTYS_ARE_PTMX) |
130 | get_pty_ptc (int *fd_tty, char **ttydev) |
94 | |
131 | { |
95 | { |
|
|
96 | # ifdef PTYS_ARE_GETPT |
|
|
97 | pfd = getpt(); |
|
|
98 | # else |
|
|
99 | # ifdef PTYS_ARE_POSIX |
|
|
100 | pfd = posix_openpt (O_RDWR); |
|
|
101 | # else |
|
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102 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
|
|
103 | # endif |
|
|
104 | # endif |
|
|
105 | |
|
|
106 | if (pfd >= 0) |
|
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107 | { |
|
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108 | if (grantpt (pfd) == 0 /* change slave permissions */ |
|
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109 | && unlockpt (pfd) == 0) |
|
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110 | { /* slave now unlocked */ |
|
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111 | *ttydev = strdup (ptsname (pfd)); /* get slave's name */ |
|
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112 | return pfd; |
|
|
113 | } |
|
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114 | close (pfd); |
|
|
115 | } |
|
|
116 | } |
|
|
117 | # endif |
|
|
118 | #endif |
|
|
119 | |
|
|
120 | #ifdef PTYS_ARE_PTC |
132 | #ifdef PTYS_ARE_PTC |
|
|
133 | int pfd; |
|
|
134 | |
121 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
135 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
122 | { |
136 | { |
123 | *ttydev = strdup (ttyname (pfd)); |
137 | *ttydev = strdup (ttyname (pfd)); |
124 | return pfd; |
138 | return pfd; |
125 | } |
139 | } |
126 | #endif |
140 | #endif |
|
|
141 | return -1; |
|
|
142 | } |
127 | |
143 | |
|
|
144 | static inline int |
|
|
145 | get_pty_clone (int *fd_tty, char **ttydev) |
|
|
146 | { |
128 | #ifdef PTYS_ARE_CLONE |
147 | #ifdef PTYS_ARE_CLONE |
|
|
148 | int pfd; |
|
|
149 | |
129 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
150 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
130 | { |
151 | { |
131 | *ttydev = strdup (ptsname (pfd)); |
152 | *ttydev = strdup (ptsname (pfd)); |
132 | return pfd; |
153 | return pfd; |
133 | } |
154 | } |
134 | #endif |
155 | #endif |
|
|
156 | return -1; |
|
|
157 | } |
135 | |
158 | |
|
|
159 | static inline int |
|
|
160 | get_pty_numeric (int *fd_tty, char **ttydev) |
|
|
161 | { |
136 | #ifdef PTYS_ARE_NUMERIC |
162 | #ifdef PTYS_ARE_NUMERIC |
137 | { |
163 | int pfd; |
138 | int idx; |
164 | int idx; |
139 | char *c1, *c2; |
165 | char *c1, *c2; |
140 | char pty_name[] = "/dev/ptyp???"; |
166 | char pty_name[] = "/dev/ptyp???"; |
141 | char tty_name[] = "/dev/ttyp???"; |
167 | char tty_name[] = "/dev/ttyp???"; |
142 | |
168 | |
… | |
… | |
161 | } |
187 | } |
162 | |
188 | |
163 | close (pfd); |
189 | close (pfd); |
164 | } |
190 | } |
165 | } |
191 | } |
166 | } |
|
|
167 | #endif |
192 | #endif |
|
|
193 | return -1; |
|
|
194 | } |
168 | |
195 | |
|
|
196 | static inline int |
|
|
197 | get_pty_searched (int *fd_tty, char **ttydev) |
|
|
198 | { |
169 | #ifdef PTYS_ARE_SEARCHED |
199 | #ifdef PTYS_ARE_SEARCHED |
170 | { |
200 | # ifndef PTYCHAR1 |
|
|
201 | # define PTYCHAR1 "pqrstuvwxyz" |
|
|
202 | # endif |
|
|
203 | # ifndef PTYCHAR2 |
|
|
204 | # define PTYCHAR2 "0123456789abcdef" |
|
|
205 | # endif |
|
|
206 | int pfd; |
171 | const char *c1, *c2; |
207 | const char *c1, *c2; |
172 | char pty_name[] = "/dev/pty??"; |
208 | char pty_name[] = "/dev/pty??"; |
173 | char tty_name[] = "/dev/tty??"; |
209 | char tty_name[] = "/dev/tty??"; |
174 | |
|
|
175 | # ifndef PTYCHAR1 |
|
|
176 | # define PTYCHAR1 "pqrstuvwxyz" |
|
|
177 | # endif |
|
|
178 | # ifndef PTYCHAR2 |
|
|
179 | # define PTYCHAR2 "0123456789abcdef" |
|
|
180 | # endif |
|
|
181 | |
210 | |
182 | for (c1 = PTYCHAR1; *c1; c1++) |
211 | for (c1 = PTYCHAR1; *c1; c1++) |
183 | { |
212 | { |
184 | pty_name[ (sizeof (pty_name) - 3)] = |
213 | pty_name[ (sizeof (pty_name) - 3)] = |
185 | tty_name[ (sizeof (pty_name) - 3)] = *c1; |
214 | tty_name[ (sizeof (pty_name) - 3)] = *c1; |
… | |
… | |
197 | |
226 | |
198 | close (pfd); |
227 | close (pfd); |
199 | } |
228 | } |
200 | } |
229 | } |
201 | } |
230 | } |
202 | } |
|
|
203 | #endif |
231 | #endif |
|
|
232 | return -1; |
|
|
233 | } |
204 | |
234 | |
|
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235 | static int |
|
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236 | get_pty (int *fd_tty, char **ttydev) |
|
|
237 | { |
|
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238 | int pfd; |
|
|
239 | |
|
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240 | if ((pfd = get_pty_streams (fd_tty, ttydev)) != -1 |
|
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241 | || (pfd = get_pty_openpty (fd_tty, ttydev)) != -1 |
|
|
242 | || (pfd = get_pty__getpty (fd_tty, ttydev)) != -1 |
|
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243 | || (pfd = get_pty_ptc (fd_tty, ttydev)) != -1 |
|
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244 | || (pfd = get_pty_clone (fd_tty, ttydev)) != -1 |
|
|
245 | || (pfd = get_pty_numeric (fd_tty, ttydev)) != -1 |
|
|
246 | || (pfd = get_pty_searched (fd_tty, ttydev)) != -1) |
|
|
247 | return pfd; |
205 | return -1; |
248 | return -1; |
206 | } |
249 | } |
207 | |
250 | |
208 | /*----------------------------------------------------------------------*/ |
251 | /*----------------------------------------------------------------------*/ |
209 | /* |
252 | /* |
… | |
… | |
218 | /*----------------------------------------------------------------------*/ |
261 | /*----------------------------------------------------------------------*/ |
219 | /* |
262 | /* |
220 | * Make our tty a controlling tty so that /dev/tty points to us |
263 | * Make our tty a controlling tty so that /dev/tty points to us |
221 | */ |
264 | */ |
222 | static int |
265 | static int |
223 | control_tty (int fd_tty, const char *ttydev) |
266 | control_tty (int fd_tty) |
224 | { |
267 | { |
225 | #ifndef __QNX__ |
|
|
226 | int fd; |
268 | int fd; |
227 | |
269 | |
228 | /* ---------------------------------------- */ |
270 | /* ---------------------------------------- */ |
229 | # ifdef HAVE_SETSID |
|
|
230 | setsid (); |
271 | setsid (); |
231 | # endif |
|
|
232 | # if defined(HAVE_SETPGID) |
|
|
233 | setpgid (0, 0); |
|
|
234 | # elif defined(HAVE_SETPGRP) |
|
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235 | setpgrp (0, 0); |
|
|
236 | # endif |
|
|
237 | |
272 | |
238 | /* ---------------------------------------- */ |
273 | /* ---------------------------------------- */ |
239 | # ifdef TIOCNOTTY |
|
|
240 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
|
|
241 | if (fd >= 0) |
|
|
242 | { |
|
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243 | ioctl (fd, TIOCNOTTY, NULL); /* void tty associations */ |
|
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244 | close (fd); |
|
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245 | } |
|
|
246 | # endif |
|
|
247 | |
|
|
248 | /* ---------------------------------------- */ |
|
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249 | fd = open ("/dev/tty", O_RDWR | O_NOCTTY); |
|
|
250 | if (fd >= 0) |
|
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251 | close (fd); /* ouch: still have controlling tty */ |
|
|
252 | |
|
|
253 | /* ---------------------------------------- */ |
|
|
254 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
274 | # if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
255 | /* |
275 | /* |
256 | * Push STREAMS modules: |
276 | * Push STREAMS modules: |
257 | * ptem: pseudo-terminal hardware emulation module. |
277 | * ptem: pseudo-terminal hardware emulation module. |
258 | * ldterm: standard terminal line discipline. |
278 | * ldterm: standard terminal line discipline. |
259 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
279 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
… | |
… | |
267 | * documentation is really unclear about whether it is any close () on |
287 | * documentation is really unclear about whether it is any close () on |
268 | * the master side or the last close () - i.e. a proper STREAMS dismantling |
288 | * the master side or the last close () - i.e. a proper STREAMS dismantling |
269 | * close () - on the master side which causes a hang up to be sent |
289 | * close () - on the master side which causes a hang up to be sent |
270 | * through - Geoff Wing |
290 | * through - Geoff Wing |
271 | */ |
291 | */ |
272 | # ifdef HAVE_ISASTREAM |
292 | # ifdef HAVE_ISASTREAM |
273 | if (isastream (fd_tty) == 1) |
293 | if (isastream (fd_tty) == 1) |
274 | # endif |
294 | # endif |
275 | { |
295 | { |
276 | ioctl (fd_tty, I_PUSH, "ptem"); |
296 | ioctl (fd_tty, I_PUSH, "ptem"); |
277 | ioctl (fd_tty, I_PUSH, "ldterm"); |
297 | ioctl (fd_tty, I_PUSH, "ldterm"); |
278 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
298 | ioctl (fd_tty, I_PUSH, "ttcompat"); |
279 | } |
299 | } |
280 | #endif |
300 | # endif |
281 | /* ---------------------------------------- */ |
301 | /* ---------------------------------------- */ |
282 | # if defined(TIOCSCTTY) |
|
|
283 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
302 | fd = ioctl (fd_tty, TIOCSCTTY, NULL); |
284 | # elif defined(TIOCSETCTTY) |
|
|
285 | fd = ioctl (fd_tty, TIOCSETCTTY, NULL); |
|
|
286 | # else |
|
|
287 | fd = open (ttydev, O_RDWR); |
|
|
288 | if (fd >= 0) |
|
|
289 | close (fd); |
|
|
290 | # endif |
|
|
291 | /* ---------------------------------------- */ |
303 | /* ---------------------------------------- */ |
292 | fd = open ("/dev/tty", O_WRONLY); |
304 | fd = open ("/dev/tty", O_WRONLY); |
293 | if (fd < 0) |
305 | if (fd < 0) |
294 | return -1; /* fatal */ |
306 | return -1; /* fatal */ |
295 | close (fd); |
307 | close (fd); |
296 | /* ---------------------------------------- */ |
308 | /* ---------------------------------------- */ |
297 | #endif /* ! __QNX__ */ |
|
|
298 | |
309 | |
299 | return 0; |
310 | return 0; |
300 | } |
311 | } |
|
|
312 | |
|
|
313 | void |
|
|
314 | rxvt_ptytty::close_tty () |
|
|
315 | { |
|
|
316 | if (tty < 0) |
|
|
317 | return; |
|
|
318 | |
|
|
319 | close (tty); |
|
|
320 | tty = -1; |
|
|
321 | } |
|
|
322 | |
|
|
323 | bool |
|
|
324 | rxvt_ptytty::make_controlling_tty () |
|
|
325 | { |
|
|
326 | return control_tty (tty) >= 0; |
|
|
327 | } |
|
|
328 | |
|
|
329 | void |
|
|
330 | rxvt_ptytty::set_utf8_mode (bool on) |
|
|
331 | { |
|
|
332 | #ifdef IUTF8 |
|
|
333 | if (pty < 0) |
|
|
334 | return; |
|
|
335 | |
|
|
336 | struct termios tio; |
|
|
337 | |
|
|
338 | if (tcgetattr (pty, &tio) != -1) |
|
|
339 | { |
|
|
340 | tcflag_t new_cflag = tio.c_iflag; |
|
|
341 | |
|
|
342 | if (on) |
|
|
343 | new_cflag |= IUTF8; |
|
|
344 | else |
|
|
345 | new_cflag &= ~IUTF8; |
|
|
346 | |
|
|
347 | if (new_cflag != tio.c_iflag) |
|
|
348 | { |
|
|
349 | tio.c_iflag = new_cflag; |
|
|
350 | tcsetattr (pty, TCSANOW, &tio); |
|
|
351 | } |
|
|
352 | } |
|
|
353 | #endif |
|
|
354 | } |
|
|
355 | |
|
|
356 | ///////////////////////////////////////////////////////////////////////////// |
301 | |
357 | |
302 | #ifndef NO_SETOWNER_TTYDEV |
358 | #ifndef NO_SETOWNER_TTYDEV |
303 | static struct ttyconf { |
359 | static struct ttyconf { |
304 | gid_t gid; |
360 | gid_t gid; |
305 | mode_t mode; |
361 | mode_t mode; |
… | |
… | |
321 | gid = getgid (); |
377 | gid = getgid (); |
322 | } |
378 | } |
323 | } |
379 | } |
324 | } ttyconf; |
380 | } ttyconf; |
325 | |
381 | |
|
|
382 | ///////////////////////////////////////////////////////////////////////////// |
|
|
383 | |
326 | void |
384 | void |
327 | rxvt_ptytty::privileges (rxvt_privaction action) |
385 | rxvt_ptytty_unix::privileges (rxvt_privaction action) |
328 | { |
386 | { |
329 | if (!name || !*name) |
387 | if (!name || !*name) |
330 | return; |
388 | return; |
331 | |
|
|
332 | rxvt_privileges (RESTORE); |
|
|
333 | |
389 | |
334 | if (action == SAVE) |
390 | if (action == SAVE) |
335 | { |
391 | { |
336 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
392 | # ifndef RESET_TTY_TO_COMMON_DEFAULTS |
337 | /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */ |
393 | /* store original tty status for restoration rxvt_clean_exit () -- rgg 04/12/95 */ |
… | |
… | |
360 | chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)); |
416 | chmod (name, (S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH)); |
361 | chown (name, 0, 0); |
417 | chown (name, 0, 0); |
362 | # endif |
418 | # endif |
363 | |
419 | |
364 | } |
420 | } |
365 | |
|
|
366 | rxvt_privileges (IGNORE); |
|
|
367 | } |
421 | } |
368 | #endif |
422 | #endif |
369 | |
423 | |
370 | rxvt_ptytty::rxvt_ptytty () |
424 | rxvt_ptytty_unix::rxvt_ptytty_unix () |
371 | { |
425 | { |
372 | pty = tty = -1; |
426 | pty = tty = -1; |
373 | name = 0; |
427 | name = 0; |
374 | #ifndef NO_SETOWNER_TTYDEV |
428 | #ifndef NO_SETOWNER_TTYDEV |
375 | saved = false; |
429 | saved = false; |
… | |
… | |
377 | #if UTMP_SUPPORT |
431 | #if UTMP_SUPPORT |
378 | cmd_pid = 0; |
432 | cmd_pid = 0; |
379 | #endif |
433 | #endif |
380 | } |
434 | } |
381 | |
435 | |
382 | rxvt_ptytty::~rxvt_ptytty () |
436 | rxvt_ptytty_unix::~rxvt_ptytty_unix () |
383 | { |
437 | { |
|
|
438 | #if UTMP_SUPPORT |
384 | logout (); |
439 | logout (); |
|
|
440 | #endif |
385 | put (); |
441 | put (); |
386 | } |
442 | } |
387 | |
443 | |
388 | void |
444 | void |
389 | |
|
|
390 | rxvt_ptytty::close_tty () |
|
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391 | { |
|
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392 | if (tty < 0) |
|
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393 | return; |
|
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394 | |
|
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395 | close (tty); |
|
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396 | tty = -1; |
|
|
397 | } |
|
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398 | |
|
|
399 | void |
|
|
400 | rxvt_ptytty::put () |
445 | rxvt_ptytty_unix::put () |
401 | { |
446 | { |
402 | #ifndef NO_SETOWNER_TTYDEV |
447 | #ifndef NO_SETOWNER_TTYDEV |
403 | privileges (RESTORE); |
448 | privileges (RESTORE); |
404 | #endif |
449 | #endif |
405 | |
450 | |
… | |
… | |
410 | pty = tty = -1; |
455 | pty = tty = -1; |
411 | name = 0; |
456 | name = 0; |
412 | } |
457 | } |
413 | |
458 | |
414 | bool |
459 | bool |
415 | rxvt_ptytty::make_controlling_tty () |
|
|
416 | { |
|
|
417 | return control_tty (tty, name) >= 0; |
|
|
418 | } |
|
|
419 | |
|
|
420 | bool |
|
|
421 | rxvt_ptytty::get () |
460 | rxvt_ptytty_unix::get () |
422 | { |
461 | { |
423 | /* get master (pty) */ |
462 | /* get master (pty) */ |
424 | if ((pty = get_pty (&tty, &name)) < 0) |
463 | if ((pty = get_pty (&tty, &name)) < 0) |
425 | return false; |
464 | return false; |
426 | |
465 | |
… | |
… | |
441 | } |
480 | } |
442 | |
481 | |
443 | return true; |
482 | return true; |
444 | } |
483 | } |
445 | |
484 | |
|
|
485 | #if PTYTTY_HELPER |
|
|
486 | |
|
|
487 | static int sock_fd; |
|
|
488 | static int pid; |
|
|
489 | |
|
|
490 | struct command |
|
|
491 | { |
|
|
492 | enum { get, login, destroy } type; |
|
|
493 | |
|
|
494 | rxvt_ptytty *id; |
|
|
495 | |
|
|
496 | bool login_shell; |
|
|
497 | int cmd_pid; |
|
|
498 | char hostname[512]; // arbitrary, but should be plenty |
|
|
499 | }; |
|
|
500 | |
|
|
501 | struct rxvt_ptytty_proxy : zero_initialized, rxvt_ptytty |
|
|
502 | { |
|
|
503 | rxvt_ptytty *id; |
|
|
504 | |
|
|
505 | ~rxvt_ptytty_proxy (); |
|
|
506 | |
|
|
507 | bool get (); |
|
|
508 | void login (int cmd_pid, bool login_shell, const char *hostname); |
|
|
509 | }; |
|
|
510 | |
|
|
511 | bool |
|
|
512 | rxvt_ptytty_proxy::get () |
|
|
513 | { |
|
|
514 | command cmd; |
|
|
515 | |
|
|
516 | cmd.type = command::get; |
|
|
517 | |
|
|
518 | write (sock_fd, &cmd, sizeof (cmd)); |
|
|
519 | |
|
|
520 | if (read (sock_fd, &id, sizeof (id)) != sizeof (id)) |
|
|
521 | rxvt_fatal ("protocol error while creating pty using helper process, aborting.\n"); |
|
|
522 | |
|
|
523 | if (!id) |
|
|
524 | return false; |
|
|
525 | |
|
|
526 | if ((pty = rxvt_recv_fd (sock_fd)) < 0 |
|
|
527 | || (tty = rxvt_recv_fd (sock_fd)) < 0) |
|
|
528 | rxvt_fatal ("protocol error while reading pty/tty fds from helper process, aborting.\n"); |
|
|
529 | |
|
|
530 | return true; |
|
|
531 | } |
|
|
532 | |
446 | void |
533 | void |
447 | rxvt_ptytty::set_utf8_mode (bool on) |
534 | rxvt_ptytty_proxy::login (int cmd_pid, bool login_shell, const char *hostname) |
448 | { |
535 | { |
449 | #ifdef IUTF8 |
536 | command cmd; |
450 | if (pty < 0) |
|
|
451 | return; |
|
|
452 | |
537 | |
453 | struct termios tio; |
538 | cmd.type = command::login; |
|
|
539 | cmd.id = id; |
|
|
540 | cmd.cmd_pid = cmd_pid; |
|
|
541 | cmd.login_shell = login_shell; |
|
|
542 | strncpy (cmd.hostname, hostname, sizeof (cmd.hostname)); |
454 | |
543 | |
455 | if (tcgetattr (pty, &tio) != -1) |
544 | write (sock_fd, &cmd, sizeof (cmd)); |
456 | { |
545 | } |
457 | tcflag_t new_cflag = tio.c_iflag; |
|
|
458 | |
546 | |
459 | if (on) |
547 | rxvt_ptytty_proxy::~rxvt_ptytty_proxy () |
460 | new_cflag |= IUTF8; |
548 | { |
|
|
549 | command cmd; |
|
|
550 | |
|
|
551 | cmd.type = command::destroy; |
|
|
552 | cmd.id = id; |
|
|
553 | |
|
|
554 | write (sock_fd, &cmd, sizeof (cmd)); |
|
|
555 | } |
|
|
556 | |
|
|
557 | static |
|
|
558 | void serve () |
|
|
559 | { |
|
|
560 | command cmd; |
|
|
561 | vector<rxvt_ptytty *> ptys; |
|
|
562 | |
|
|
563 | while (read (sock_fd, &cmd, sizeof (command)) == sizeof (command)) |
|
|
564 | { |
|
|
565 | if (cmd.type == command::get) |
|
|
566 | { |
|
|
567 | // -> id ptyfd ttyfd |
|
|
568 | cmd.id = new rxvt_ptytty_unix; |
|
|
569 | |
|
|
570 | if (cmd.id->get ()) |
|
|
571 | { |
|
|
572 | write (sock_fd, &cmd.id, sizeof (cmd.id)); |
|
|
573 | ptys.push_back (cmd.id); |
|
|
574 | |
|
|
575 | rxvt_send_fd (sock_fd, cmd.id->pty); |
|
|
576 | rxvt_send_fd (sock_fd, cmd.id->tty); |
|
|
577 | } |
|
|
578 | else |
|
|
579 | { |
|
|
580 | delete cmd.id; |
|
|
581 | cmd.id = 0; |
|
|
582 | write (sock_fd, &cmd.id, sizeof (cmd.id)); |
|
|
583 | } |
|
|
584 | } |
|
|
585 | else if (cmd.type == command::login) |
|
|
586 | { |
|
|
587 | #if UTMP_SUPPORT |
|
|
588 | if (find (ptys.begin (), ptys.end (), cmd.id)) |
|
|
589 | { |
|
|
590 | cmd.hostname[sizeof (cmd.hostname) - 1] = 0; |
|
|
591 | cmd.id->login (cmd.cmd_pid, cmd.login_shell, cmd.hostname); |
|
|
592 | } |
|
|
593 | #endif |
|
|
594 | } |
|
|
595 | else if (cmd.type == command::destroy) |
|
|
596 | { |
|
|
597 | rxvt_ptytty **pty = find (ptys.begin (), ptys.end (), cmd.id); |
|
|
598 | |
|
|
599 | if (pty) |
|
|
600 | { |
|
|
601 | delete *pty; |
|
|
602 | ptys.erase (pty); |
|
|
603 | } |
|
|
604 | } |
461 | else |
605 | else |
462 | new_cflag &= ~IUTF8; |
606 | break; |
|
|
607 | } |
463 | |
608 | |
464 | if (new_cflag != tio.c_iflag) |
609 | // destroy all ptys |
465 | { |
610 | for (rxvt_ptytty **i = ptys.end (); i-- > ptys.begin (); ) |
466 | tio.c_iflag = new_cflag; |
611 | delete *i; |
467 | tcsetattr (pty, TCSANOW, &tio); |
612 | } |
468 | } |
613 | |
|
|
614 | void rxvt_ptytty_server () |
|
|
615 | { |
|
|
616 | int sv[2]; |
|
|
617 | |
|
|
618 | if (socketpair (AF_UNIX, SOCK_STREAM, 0, sv)) |
|
|
619 | rxvt_fatal ("could not create socket to communicate with pty/sessiondb helper, aborting.\n"); |
|
|
620 | |
|
|
621 | pid = fork (); |
|
|
622 | |
|
|
623 | if (pid < 0) |
|
|
624 | rxvt_fatal ("could not create pty/sessiondb helper process, aborting.\n"); |
|
|
625 | |
|
|
626 | if (pid) |
469 | } |
627 | { |
|
|
628 | // client, urxvt |
|
|
629 | sock_fd = sv[0]; |
|
|
630 | close (sv[1]); |
|
|
631 | fcntl (sock_fd, F_SETFD, FD_CLOEXEC); |
|
|
632 | } |
|
|
633 | else |
|
|
634 | { |
|
|
635 | setgid (getegid ()); |
|
|
636 | setuid (geteuid ()); |
|
|
637 | |
|
|
638 | // server, pty-helper |
|
|
639 | sock_fd = sv[1]; |
|
|
640 | |
|
|
641 | for (int fd = 0; fd < 1023; fd++) |
|
|
642 | if (fd != sock_fd && fd != 1) |
|
|
643 | close (fd); |
|
|
644 | |
|
|
645 | serve (); |
|
|
646 | _exit (EXIT_SUCCESS); |
|
|
647 | } |
|
|
648 | } |
470 | #endif |
649 | #endif |
|
|
650 | |
|
|
651 | // a "factory" *g* |
|
|
652 | rxvt_ptytty * |
|
|
653 | rxvt_new_ptytty () |
|
|
654 | { |
|
|
655 | #if PTYTTY_HELPER |
|
|
656 | if (pid > 0) |
|
|
657 | // use helper process |
|
|
658 | return new rxvt_ptytty_proxy; |
|
|
659 | else |
|
|
660 | #endif |
|
|
661 | return new rxvt_ptytty_unix; |
471 | } |
662 | } |
472 | |
663 | |
473 | /*----------------------- end-of-file (C source) -----------------------*/ |
664 | /*----------------------- end-of-file (C source) -----------------------*/ |
474 | |
665 | |