… | |
… | |
20 | * along with this program; if not, write to the Free Software |
20 | * along with this program; if not, write to the Free Software |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
22 | *---------------------------------------------------------------------*/ |
22 | *---------------------------------------------------------------------*/ |
23 | |
23 | |
24 | #include "../config.h" /* NECESSARY */ |
24 | #include "../config.h" /* NECESSARY */ |
|
|
25 | |
|
|
26 | #include "fdpass.h" |
25 | #include "rxvt.h" |
27 | #include "ptytty.h" |
26 | |
28 | |
27 | #include <cstdlib> |
29 | #include <cstdlib> |
28 | #include <cstring> |
30 | #include <cstring> |
29 | |
31 | |
30 | #include <sys/types.h> |
32 | #include <sys/types.h> |
… | |
… | |
33 | #include <fcntl.h> |
35 | #include <fcntl.h> |
34 | |
36 | |
35 | #ifdef HAVE_SYS_IOCTL_H |
37 | #ifdef HAVE_SYS_IOCTL_H |
36 | # include <sys/ioctl.h> |
38 | # include <sys/ioctl.h> |
37 | #endif |
39 | #endif |
38 | #if defined(PTYS_ARE_PTMX) && defined(HAVE_SYS_STROPTS_H) |
40 | #if defined(HAVE_DEV_PTMX) && defined(HAVE_SYS_STROPTS_H) |
39 | # include <sys/stropts.h> /* for I_PUSH */ |
41 | # include <sys/stropts.h> /* for I_PUSH */ |
40 | #endif |
42 | #endif |
41 | #ifdef HAVE_ISASTREAM |
43 | #ifdef HAVE_ISASTREAM |
42 | # include <stropts.h> |
44 | # include <stropts.h> |
43 | #endif |
45 | #endif |
… | |
… | |
46 | #elif defined(HAVE_LIBUTIL_H) |
48 | #elif defined(HAVE_LIBUTIL_H) |
47 | # include <libutil.h> |
49 | # include <libutil.h> |
48 | #elif defined(HAVE_UTIL_H) |
50 | #elif defined(HAVE_UTIL_H) |
49 | # include <util.h> |
51 | # include <util.h> |
50 | #endif |
52 | #endif |
|
|
53 | #ifdef TTY_GID_SUPPORT |
|
|
54 | #include <grp.h> |
|
|
55 | #endif |
51 | |
56 | |
52 | #include <cstdio> |
57 | #include <cstdio> |
53 | #include <grp.h> |
|
|
54 | |
|
|
55 | #include "rxvtutil.h" |
|
|
56 | #include "fdpass.h" |
|
|
57 | #include "ptytty.h" |
|
|
58 | |
58 | |
59 | ///////////////////////////////////////////////////////////////////////////// |
59 | ///////////////////////////////////////////////////////////////////////////// |
60 | |
60 | |
61 | /* ------------------------------------------------------------------------- * |
61 | /* ------------------------------------------------------------------------- * |
62 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
62 | * GET PSEUDO TELETYPE - MASTER AND SLAVE * |
… | |
… | |
64 | /* |
64 | /* |
65 | * Returns pty file descriptor, or -1 on failure |
65 | * Returns pty file descriptor, or -1 on failure |
66 | * 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. |
67 | * 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 |
68 | */ |
68 | */ |
69 | static inline int |
69 | #if defined(UNIX98_PTY) |
|
|
70 | static int |
70 | get_pty_streams (int *fd_tty, char **ttydev) |
71 | get_pty (int *fd_tty, char **ttydev) |
71 | { |
72 | { |
72 | #ifdef NO_SETOWNER_TTYDEV |
|
|
73 | int pfd; |
73 | int pfd; |
74 | |
74 | |
75 | # if defined(PTYS_ARE_GETPT) |
75 | # if defined(HAVE_GETPT) |
76 | pfd = getpt(); |
76 | pfd = getpt(); |
77 | # elif defined(PTYS_ARE_POSIX) |
77 | # elif defined(HAVE_POSIX_OPENPT) |
78 | pfd = posix_openpt (O_RDWR); |
78 | pfd = posix_openpt (O_RDWR); |
79 | # else |
79 | # else |
80 | pfd = open ("/dev/ptmx", O_RDWR | O_NOCTTY, 0); |
80 | pfd = open (CLONE_DEVICE, O_RDWR | O_NOCTTY, 0); |
81 | # endif |
81 | # endif |
82 | if (pfd >= 0) |
82 | if (pfd >= 0) |
83 | { |
83 | { |
84 | if (grantpt (pfd) == 0 /* change slave permissions */ |
84 | if (grantpt (pfd) == 0 /* change slave permissions */ |
85 | && unlockpt (pfd) == 0) |
85 | && unlockpt (pfd) == 0) |
… | |
… | |
88 | return pfd; |
88 | return pfd; |
89 | } |
89 | } |
90 | |
90 | |
91 | close (pfd); |
91 | close (pfd); |
92 | } |
92 | } |
93 | #endif |
|
|
94 | |
93 | |
95 | return -1; |
94 | return -1; |
96 | } |
95 | } |
97 | |
96 | #elif defined(HAVE_OPENPTY) |
98 | static inline int |
97 | static int |
99 | get_pty_openpty (int *fd_tty, char **ttydev) |
98 | get_pty (int *fd_tty, char **ttydev) |
100 | { |
99 | { |
101 | #ifdef PTYS_ARE_OPENPTY |
|
|
102 | int pfd; |
100 | int pfd; |
103 | int res; |
101 | int res; |
104 | char tty_name[sizeof "/dev/pts/????\0"]; |
102 | char tty_name[32]; |
105 | |
103 | |
106 | res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); |
104 | res = openpty (&pfd, fd_tty, tty_name, NULL, NULL); |
107 | if (res != -1) |
105 | if (res != -1) |
108 | { |
106 | { |
109 | *ttydev = strdup (tty_name); |
107 | *ttydev = strdup (tty_name); |
110 | return pfd; |
108 | return pfd; |
111 | } |
109 | } |
112 | #endif |
|
|
113 | |
110 | |
114 | return -1; |
111 | return -1; |
115 | } |
112 | } |
116 | |
113 | #elif defined(HAVE__GETPTY) |
117 | static inline int |
114 | static int |
118 | get_pty__getpty (int *fd_tty, char **ttydev) |
115 | get_pty (int *fd_tty, char **ttydev) |
119 | { |
116 | { |
120 | #ifdef PTYS_ARE__GETPTY |
|
|
121 | int pfd; |
117 | int pfd; |
122 | |
118 | |
123 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
119 | *ttydev = _getpty (&pfd, O_RDWR | O_NONBLOCK | O_NOCTTY, 0622, 0); |
124 | if (*ttydev != NULL) |
120 | if (*ttydev != NULL) |
125 | return pfd; |
121 | return pfd; |
126 | #endif |
|
|
127 | |
122 | |
128 | return -1; |
123 | return -1; |
129 | } |
124 | } |
130 | |
125 | #elif defined(HAVE_DEV_PTC) |
131 | static inline int |
126 | static int |
132 | get_pty_ptc (int *fd_tty, char **ttydev) |
127 | get_pty (int *fd_tty, char **ttydev) |
133 | { |
128 | { |
134 | #ifdef PTYS_ARE_PTC |
|
|
135 | int pfd; |
129 | int pfd; |
136 | |
130 | |
137 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
131 | if ((pfd = open ("/dev/ptc", O_RDWR | O_NOCTTY, 0)) >= 0) |
138 | { |
132 | { |
139 | *ttydev = strdup (ttyname (pfd)); |
133 | *ttydev = strdup (ttyname (pfd)); |
140 | return pfd; |
134 | return pfd; |
141 | } |
135 | } |
142 | #endif |
|
|
143 | |
136 | |
144 | return -1; |
137 | return -1; |
145 | } |
138 | } |
146 | |
139 | #elif defined(HAVE_DEV_CLONE) |
147 | static inline int |
140 | static int |
148 | get_pty_clone (int *fd_tty, char **ttydev) |
141 | get_pty (int *fd_tty, char **ttydev) |
149 | { |
142 | { |
150 | #ifdef PTYS_ARE_CLONE |
|
|
151 | int pfd; |
143 | int pfd; |
152 | |
144 | |
153 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
145 | if ((pfd = open ("/dev/ptym/clone", O_RDWR | O_NOCTTY, 0)) >= 0) |
154 | { |
146 | { |
155 | *ttydev = strdup (ptsname (pfd)); |
147 | *ttydev = strdup (ptsname (pfd)); |
156 | return pfd; |
148 | return pfd; |
157 | } |
149 | } |
158 | #endif |
|
|
159 | |
150 | |
160 | return -1; |
151 | return -1; |
161 | } |
152 | } |
162 | |
153 | #else |
163 | static inline int |
154 | /* Based on the code in openssh/openbsd-compat/bsd-openpty.c */ |
|
|
155 | static int |
164 | get_pty_numeric (int *fd_tty, char **ttydev) |
156 | get_pty (int *fd_tty, char **ttydev) |
165 | { |
157 | { |
166 | #ifdef PTYS_ARE_NUMERIC |
|
|
167 | int pfd; |
158 | int pfd; |
168 | int idx; |
159 | int i; |
169 | char *c1, *c2; |
160 | char pty_name[32]; |
170 | char pty_name[] = "/dev/ptyp???"; |
161 | char tty_name[32]; |
171 | char tty_name[] = "/dev/ttyp???"; |
162 | const char *majors = "pqrstuvwxyzabcde"; |
172 | |
163 | const char *minors = "0123456789abcdef"; |
173 | c1 = &(pty_name[sizeof (pty_name) - 4]); |
|
|
174 | c2 = &(tty_name[sizeof (tty_name) - 4]); |
|
|
175 | |
|
|
176 | for (idx = 0; idx < 256; idx++) |
164 | for (i = 0; i < 256; i++) |
177 | { |
165 | { |
178 | sprintf (c1, "%d", idx); |
166 | snprintf(pty_name, 32, "/dev/pty%c%c", majors[i / 16], minors[i % 16]); |
179 | sprintf (c2, "%d", idx); |
167 | snprintf(tty_name, 32, "/dev/tty%c%c", majors[i / 16], minors[i % 16]); |
180 | |
|
|
181 | if (access (tty_name, F_OK) < 0) |
|
|
182 | { |
|
|
183 | idx = 256; |
|
|
184 | break; |
|
|
185 | } |
|
|
186 | |
|
|
187 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
168 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) == -1) |
|
|
169 | { |
|
|
170 | snprintf(pty_name, 32, "/dev/ptyp%d", i); |
|
|
171 | snprintf(tty_name, 32, "/dev/ttyp%d", i); |
|
|
172 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) == -1) |
|
|
173 | continue; |
188 | { |
174 | } |
189 | if (access (tty_name, R_OK | W_OK) == 0) |
175 | if (access (tty_name, R_OK | W_OK) == 0) |
190 | { |
176 | { |
191 | *ttydev = strdup (tty_name); |
177 | *ttydev = strdup (tty_name); |
192 | return pfd; |
178 | return pfd; |
193 | } |
179 | } |
194 | |
180 | |
195 | close (pfd); |
181 | close (pfd); |
196 | } |
|
|
197 | } |
182 | } |
198 | #endif |
|
|
199 | |
|
|
200 | return -1; |
|
|
201 | } |
183 | } |
202 | |
|
|
203 | static inline int |
|
|
204 | get_pty_searched (int *fd_tty, char **ttydev) |
|
|
205 | { |
|
|
206 | #ifdef PTYS_ARE_SEARCHED |
|
|
207 | # ifndef PTYCHAR1 |
|
|
208 | # define PTYCHAR1 "pqrstuvwxyz" |
|
|
209 | # endif |
184 | #endif |
210 | # ifndef PTYCHAR2 |
|
|
211 | # define PTYCHAR2 "0123456789abcdef" |
|
|
212 | # endif |
|
|
213 | int pfd; |
|
|
214 | const char *c1, *c2; |
|
|
215 | char pty_name[] = "/dev/pty??"; |
|
|
216 | char tty_name[] = "/dev/tty??"; |
|
|
217 | |
|
|
218 | for (c1 = PTYCHAR1; *c1; c1++) |
|
|
219 | { |
|
|
220 | pty_name[ (sizeof (pty_name) - 3)] = |
|
|
221 | tty_name[ (sizeof (pty_name) - 3)] = *c1; |
|
|
222 | |
|
|
223 | for (c2 = PTYCHAR2; *c2; c2++) |
|
|
224 | { |
|
|
225 | pty_name[ (sizeof (pty_name) - 2)] = |
|
|
226 | tty_name[ (sizeof (pty_name) - 2)] = *c2; |
|
|
227 | |
|
|
228 | if ((pfd = open (pty_name, O_RDWR | O_NOCTTY, 0)) >= 0) |
|
|
229 | { |
|
|
230 | if (access (tty_name, R_OK | W_OK) == 0) |
|
|
231 | { |
|
|
232 | *ttydev = strdup (tty_name); |
|
|
233 | return pfd; |
|
|
234 | } |
|
|
235 | |
|
|
236 | close (pfd); |
|
|
237 | } |
|
|
238 | } |
|
|
239 | } |
|
|
240 | #endif |
|
|
241 | |
|
|
242 | return -1; |
|
|
243 | } |
|
|
244 | |
|
|
245 | static int |
|
|
246 | get_pty (int *fd_tty, char **ttydev) |
|
|
247 | { |
|
|
248 | int pfd; |
|
|
249 | |
|
|
250 | if ((pfd = get_pty_streams (fd_tty, ttydev)) != -1 |
|
|
251 | || (pfd = get_pty_openpty (fd_tty, ttydev)) != -1 |
|
|
252 | || (pfd = get_pty__getpty (fd_tty, ttydev)) != -1 |
|
|
253 | || (pfd = get_pty_ptc (fd_tty, ttydev)) != -1 |
|
|
254 | || (pfd = get_pty_clone (fd_tty, ttydev)) != -1 |
|
|
255 | || (pfd = get_pty_numeric (fd_tty, ttydev)) != -1 |
|
|
256 | || (pfd = get_pty_searched (fd_tty, ttydev)) != -1) |
|
|
257 | return pfd; |
|
|
258 | |
|
|
259 | return -1; |
|
|
260 | } |
|
|
261 | |
185 | |
262 | /*----------------------------------------------------------------------*/ |
186 | /*----------------------------------------------------------------------*/ |
263 | /* |
187 | /* |
264 | * Returns tty file descriptor, or -1 on failure |
188 | * Returns tty file descriptor, or -1 on failure |
265 | */ |
189 | */ |
… | |
… | |
276 | static int |
200 | static int |
277 | control_tty (int fd_tty) |
201 | control_tty (int fd_tty) |
278 | { |
202 | { |
279 | setsid (); |
203 | setsid (); |
280 | |
204 | |
281 | #if defined(PTYS_ARE_PTMX) && defined(I_PUSH) |
205 | #if defined(HAVE_DEV_PTMX) && defined(I_PUSH) |
282 | /* |
206 | /* |
283 | * Push STREAMS modules: |
207 | * Push STREAMS modules: |
284 | * ptem: pseudo-terminal hardware emulation module. |
208 | * ptem: pseudo-terminal hardware emulation module. |
285 | * ldterm: standard terminal line discipline. |
209 | * ldterm: standard terminal line discipline. |
286 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
210 | * ttcompat: V7, 4BSD and XENIX STREAMS compatibility module. |
… | |
… | |
316 | |
240 | |
317 | return 0; |
241 | return 0; |
318 | } |
242 | } |
319 | |
243 | |
320 | void |
244 | void |
321 | rxvt_ptytty::close_tty () |
245 | ptytty::close_tty () |
322 | { |
246 | { |
323 | if (tty < 0) |
247 | if (tty < 0) |
324 | return; |
248 | return; |
325 | |
249 | |
326 | close (tty); |
250 | close (tty); |
327 | tty = -1; |
251 | tty = -1; |
328 | } |
252 | } |
329 | |
253 | |
330 | bool |
254 | bool |
331 | rxvt_ptytty::make_controlling_tty () |
255 | ptytty::make_controlling_tty () |
332 | { |
256 | { |
333 | return control_tty (tty) >= 0; |
257 | return control_tty (tty) >= 0; |
334 | } |
258 | } |
335 | |
259 | |
336 | void |
260 | void |
337 | rxvt_ptytty::set_utf8_mode (bool on) |
261 | ptytty::set_utf8_mode (bool on) |
338 | { |
262 | { |
339 | #ifdef IUTF8 |
263 | #ifdef IUTF8 |
340 | if (pty < 0) |
264 | if (pty < 0) |
341 | return; |
265 | return; |
342 | |
266 | |
… | |
… | |
358 | } |
282 | } |
359 | } |
283 | } |
360 | #endif |
284 | #endif |
361 | } |
285 | } |
362 | |
286 | |
363 | ///////////////////////////////////////////////////////////////////////////// |
|
|
364 | |
|
|
365 | #ifndef NO_SETOWNER_TTYDEV |
|
|
366 | static struct ttyconf { |
287 | static struct ttyconf { |
367 | gid_t gid; |
288 | gid_t gid; |
368 | mode_t mode; |
289 | mode_t mode; |
369 | |
290 | |
370 | ttyconf () |
291 | ttyconf () |
… | |
… | |
384 | gid = 0; |
305 | gid = 0; |
385 | } |
306 | } |
386 | } |
307 | } |
387 | } ttyconf; |
308 | } ttyconf; |
388 | |
309 | |
389 | ///////////////////////////////////////////////////////////////////////////// |
310 | ptytty_unix::ptytty_unix () |
|
|
311 | { |
|
|
312 | name = 0; |
|
|
313 | #if UTMP_SUPPORT |
|
|
314 | cmd_pid = 0; |
|
|
315 | #endif |
|
|
316 | } |
|
|
317 | |
|
|
318 | ptytty_unix::~ptytty_unix () |
|
|
319 | { |
|
|
320 | #if UTMP_SUPPORT |
|
|
321 | logout (); |
|
|
322 | #endif |
|
|
323 | put (); |
|
|
324 | } |
390 | |
325 | |
391 | void |
326 | void |
392 | rxvt_ptytty_unix::privileges (rxvt_privaction action) |
327 | ptytty_unix::put () |
393 | { |
328 | { |
394 | if (!name || !*name) |
329 | chmod (name, RESTORE_TTY_MODE); |
|
|
330 | chown (name, 0, ttyconf.gid); |
|
|
331 | |
|
|
332 | close_tty (); |
|
|
333 | |
|
|
334 | if (pty >= 0) |
|
|
335 | close (pty); |
|
|
336 | |
|
|
337 | free (name); |
|
|
338 | |
|
|
339 | pty = tty = -1; |
|
|
340 | name = 0; |
|
|
341 | } |
|
|
342 | |
|
|
343 | bool |
|
|
344 | ptytty_unix::get () |
|
|
345 | { |
|
|
346 | /* get master (pty) */ |
|
|
347 | if ((pty = get_pty (&tty, &name)) < 0) |
395 | return; |
348 | return false; |
396 | |
349 | |
397 | if (action == SAVE) |
350 | fcntl (pty, F_SETFL, O_NONBLOCK); |
|
|
351 | |
|
|
352 | /* get slave (tty) */ |
|
|
353 | if (tty < 0) |
398 | { |
354 | { |
|
|
355 | #ifndef NO_SETOWNER_TTYDEV |
399 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
356 | chown (name, getuid (), ttyconf.gid); /* fail silently */ |
400 | chmod (name, ttyconf.mode); |
357 | chmod (name, ttyconf.mode); |
401 | # ifdef HAVE_REVOKE |
358 | # ifdef HAVE_REVOKE |
402 | revoke (name); |
359 | revoke (name); |
403 | # endif |
360 | # endif |
404 | } |
|
|
405 | else |
|
|
406 | { /* action == RESTORE */ |
|
|
407 | chmod (name, RESTORE_TTY_MODE); |
|
|
408 | chown (name, 0, ttyconf.gid); |
|
|
409 | } |
|
|
410 | } |
|
|
411 | #endif |
|
|
412 | |
|
|
413 | rxvt_ptytty_unix::rxvt_ptytty_unix () |
|
|
414 | { |
|
|
415 | pty = tty = -1; |
|
|
416 | name = 0; |
|
|
417 | #if UTMP_SUPPORT |
|
|
418 | cmd_pid = 0; |
|
|
419 | #endif |
|
|
420 | } |
|
|
421 | |
|
|
422 | rxvt_ptytty_unix::~rxvt_ptytty_unix () |
|
|
423 | { |
|
|
424 | #if UTMP_SUPPORT |
|
|
425 | logout (); |
|
|
426 | #endif |
|
|
427 | put (); |
|
|
428 | } |
|
|
429 | |
|
|
430 | void |
|
|
431 | rxvt_ptytty_unix::put () |
|
|
432 | { |
|
|
433 | #ifndef NO_SETOWNER_TTYDEV |
|
|
434 | privileges (RESTORE); |
|
|
435 | #endif |
|
|
436 | |
|
|
437 | if (pty >= 0) close (pty); |
|
|
438 | close_tty (); |
|
|
439 | free (name); |
|
|
440 | |
|
|
441 | pty = tty = -1; |
|
|
442 | name = 0; |
|
|
443 | } |
|
|
444 | |
|
|
445 | bool |
|
|
446 | rxvt_ptytty_unix::get () |
|
|
447 | { |
|
|
448 | /* get master (pty) */ |
|
|
449 | if ((pty = get_pty (&tty, &name)) < 0) |
|
|
450 | return false; |
|
|
451 | |
|
|
452 | fcntl (pty, F_SETFL, O_NONBLOCK); |
|
|
453 | |
|
|
454 | /* get slave (tty) */ |
|
|
455 | if (tty < 0) |
|
|
456 | { |
|
|
457 | #ifndef NO_SETOWNER_TTYDEV |
|
|
458 | privileges (SAVE); |
|
|
459 | #endif |
361 | #endif |
460 | |
362 | |
461 | if ((tty = get_tty (name)) < 0) |
363 | if ((tty = get_tty (name)) < 0) |
462 | { |
364 | { |
463 | put (); |
365 | put (); |
… | |
… | |
475 | |
377 | |
476 | struct command |
378 | struct command |
477 | { |
379 | { |
478 | enum { get, login, destroy } type; |
380 | enum { get, login, destroy } type; |
479 | |
381 | |
480 | rxvt_ptytty *id; |
382 | ptytty *id; |
481 | |
383 | |
482 | bool login_shell; |
384 | bool login_shell; |
483 | int cmd_pid; |
385 | int cmd_pid; |
484 | char hostname[512]; // arbitrary, but should be plenty |
386 | char hostname[512]; // arbitrary, but should be plenty |
485 | }; |
387 | }; |
486 | |
388 | |
487 | struct rxvt_ptytty_proxy : zero_initialized, rxvt_ptytty |
389 | struct ptytty_proxy : ptytty |
488 | { |
390 | { |
489 | rxvt_ptytty *id; |
391 | ptytty *id; |
490 | |
392 | |
|
|
393 | ptytty_proxy () |
|
|
394 | : id(0) |
|
|
395 | { |
|
|
396 | } |
|
|
397 | |
491 | ~rxvt_ptytty_proxy (); |
398 | ~ptytty_proxy (); |
492 | |
399 | |
493 | bool get (); |
400 | bool get (); |
494 | void login (int cmd_pid, bool login_shell, const char *hostname); |
401 | void login (int cmd_pid, bool login_shell, const char *hostname); |
495 | }; |
402 | }; |
496 | |
403 | |
497 | bool |
404 | bool |
498 | rxvt_ptytty_proxy::get () |
405 | ptytty_proxy::get () |
499 | { |
406 | { |
500 | command cmd; |
407 | command cmd; |
501 | |
408 | |
502 | cmd.type = command::get; |
409 | cmd.type = command::get; |
503 | |
410 | |
504 | write (sock_fd, &cmd, sizeof (cmd)); |
411 | write (sock_fd, &cmd, sizeof (cmd)); |
505 | |
412 | |
506 | if (read (sock_fd, &id, sizeof (id)) != sizeof (id)) |
413 | if (read (sock_fd, &id, sizeof (id)) != sizeof (id)) |
507 | rxvt_fatal ("protocol error while creating pty using helper process, aborting.\n"); |
414 | fatal ("protocol error while creating pty using helper process, aborting.\n"); |
508 | |
415 | |
509 | if (!id) |
416 | if (!id) |
510 | return false; |
417 | return false; |
511 | |
418 | |
512 | if ((pty = rxvt_recv_fd (sock_fd)) < 0 |
419 | if ((pty = ptytty_recv_fd (sock_fd)) < 0 |
513 | || (tty = rxvt_recv_fd (sock_fd)) < 0) |
420 | || (tty = ptytty_recv_fd (sock_fd)) < 0) |
514 | rxvt_fatal ("protocol error while reading pty/tty fds from helper process, aborting.\n"); |
421 | fatal ("protocol error while reading pty/tty fds from helper process, aborting.\n"); |
515 | |
422 | |
516 | return true; |
423 | return true; |
517 | } |
424 | } |
518 | |
425 | |
519 | void |
426 | void |
520 | rxvt_ptytty_proxy::login (int cmd_pid, bool login_shell, const char *hostname) |
427 | ptytty_proxy::login (int cmd_pid, bool login_shell, const char *hostname) |
521 | { |
428 | { |
522 | command cmd; |
429 | command cmd; |
523 | |
430 | |
524 | cmd.type = command::login; |
431 | cmd.type = command::login; |
525 | cmd.id = id; |
432 | cmd.id = id; |
… | |
… | |
528 | strncpy (cmd.hostname, hostname, sizeof (cmd.hostname)); |
435 | strncpy (cmd.hostname, hostname, sizeof (cmd.hostname)); |
529 | |
436 | |
530 | write (sock_fd, &cmd, sizeof (cmd)); |
437 | write (sock_fd, &cmd, sizeof (cmd)); |
531 | } |
438 | } |
532 | |
439 | |
533 | rxvt_ptytty_proxy::~rxvt_ptytty_proxy () |
440 | ptytty_proxy::~ptytty_proxy () |
534 | { |
441 | { |
|
|
442 | if (id) |
|
|
443 | { |
535 | command cmd; |
444 | command cmd; |
536 | |
445 | |
537 | cmd.type = command::destroy; |
446 | cmd.type = command::destroy; |
538 | cmd.id = id; |
447 | cmd.id = id; |
539 | |
448 | |
540 | write (sock_fd, &cmd, sizeof (cmd)); |
449 | write (sock_fd, &cmd, sizeof (cmd)); |
|
|
450 | } |
541 | } |
451 | } |
542 | |
452 | |
543 | static |
453 | static |
544 | void serve () |
454 | void serve () |
545 | { |
455 | { |
546 | command cmd; |
456 | command cmd; |
547 | vector<rxvt_ptytty *> ptys; |
457 | vector<ptytty *> ptys; |
548 | |
458 | |
549 | while (read (sock_fd, &cmd, sizeof (command)) == sizeof (command)) |
459 | while (read (sock_fd, &cmd, sizeof (command)) == sizeof (command)) |
550 | { |
460 | { |
551 | if (cmd.type == command::get) |
461 | if (cmd.type == command::get) |
552 | { |
462 | { |
553 | // -> id ptyfd ttyfd |
463 | // -> id ptyfd ttyfd |
554 | cmd.id = new rxvt_ptytty_unix; |
464 | cmd.id = new ptytty_unix; |
555 | |
465 | |
556 | if (cmd.id->get ()) |
466 | if (cmd.id->get ()) |
557 | { |
467 | { |
558 | write (sock_fd, &cmd.id, sizeof (cmd.id)); |
468 | write (sock_fd, &cmd.id, sizeof (cmd.id)); |
559 | ptys.push_back (cmd.id); |
469 | ptys.push_back (cmd.id); |
560 | |
470 | |
561 | rxvt_send_fd (sock_fd, cmd.id->pty); |
471 | ptytty_send_fd (sock_fd, cmd.id->pty); |
562 | rxvt_send_fd (sock_fd, cmd.id->tty); |
472 | ptytty_send_fd (sock_fd, cmd.id->tty); |
563 | } |
473 | } |
564 | else |
474 | else |
565 | { |
475 | { |
566 | delete cmd.id; |
476 | delete cmd.id; |
567 | cmd.id = 0; |
477 | cmd.id = 0; |
… | |
… | |
578 | } |
488 | } |
579 | #endif |
489 | #endif |
580 | } |
490 | } |
581 | else if (cmd.type == command::destroy) |
491 | else if (cmd.type == command::destroy) |
582 | { |
492 | { |
583 | rxvt_ptytty **pty = find (ptys.begin (), ptys.end (), cmd.id); |
493 | ptytty **pty = find (ptys.begin (), ptys.end (), cmd.id); |
584 | |
494 | |
585 | if (pty) |
495 | if (pty) |
586 | { |
496 | { |
587 | delete *pty; |
497 | delete *pty; |
588 | ptys.erase (pty); |
498 | ptys.erase (pty); |
… | |
… | |
591 | else |
501 | else |
592 | break; |
502 | break; |
593 | } |
503 | } |
594 | |
504 | |
595 | // destroy all ptys |
505 | // destroy all ptys |
596 | for (rxvt_ptytty **i = ptys.end (); i-- > ptys.begin (); ) |
506 | for (ptytty **i = ptys.end (); i-- > ptys.begin (); ) |
597 | delete *i; |
507 | delete *i; |
598 | } |
508 | } |
599 | |
509 | |
600 | void rxvt_ptytty_server () |
510 | void ptytty_server () |
601 | { |
511 | { |
602 | int sv[2]; |
512 | int sv[2]; |
603 | |
513 | |
604 | if (socketpair (AF_UNIX, SOCK_STREAM, 0, sv)) |
514 | if (socketpair (AF_UNIX, SOCK_STREAM, 0, sv)) |
605 | rxvt_fatal ("could not create socket to communicate with pty/sessiondb helper, aborting.\n"); |
515 | fatal ("could not create socket to communicate with pty/sessiondb helper, aborting.\n"); |
606 | |
516 | |
607 | pid = fork (); |
517 | pid = fork (); |
608 | |
518 | |
609 | if (pid < 0) |
519 | if (pid < 0) |
610 | rxvt_fatal ("could not create pty/sessiondb helper process, aborting.\n"); |
520 | fatal ("could not create pty/sessiondb helper process, aborting.\n"); |
611 | |
521 | |
612 | if (pid) |
522 | if (pid) |
613 | { |
523 | { |
614 | // client, urxvt |
524 | // client, process |
615 | sock_fd = sv[0]; |
525 | sock_fd = sv[0]; |
616 | close (sv[1]); |
526 | close (sv[1]); |
617 | fcntl (sock_fd, F_SETFD, FD_CLOEXEC); |
527 | fcntl (sock_fd, F_SETFD, FD_CLOEXEC); |
618 | } |
528 | } |
619 | else |
529 | else |
… | |
… | |
627 | |
537 | |
628 | serve (); |
538 | serve (); |
629 | _exit (EXIT_SUCCESS); |
539 | _exit (EXIT_SUCCESS); |
630 | } |
540 | } |
631 | } |
541 | } |
|
|
542 | |
632 | #endif |
543 | #endif |
633 | |
544 | |
634 | // a "factory" *g* |
545 | // a "factory" *g* |
635 | rxvt_ptytty * |
546 | ptytty * |
636 | rxvt_new_ptytty () |
547 | new_ptytty () |
637 | { |
548 | { |
638 | #if PTYTTY_HELPER |
549 | #if PTYTTY_HELPER |
639 | if (pid > 0) |
550 | if (pid > 0) |
640 | // use helper process |
551 | // use helper process |
641 | return new rxvt_ptytty_proxy; |
552 | return new ptytty_proxy; |
642 | else |
553 | else |
643 | #endif |
554 | #endif |
644 | return new rxvt_ptytty_unix; |
555 | return new ptytty_unix; |
645 | } |
556 | } |
646 | |
557 | |
647 | /*----------------------- end-of-file (C source) -----------------------*/ |
558 | /*----------------------- end-of-file (C source) -----------------------*/ |
648 | |
559 | |