Commit | Line | Data |
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86a5659e | 1 | /* Interfaces to system-dependent kernel and library entries. |
91bac16a | 2 | Copyright (C) 1985, 1986, 1987, 1988, 1992 Free Software Foundation, Inc. |
86a5659e JB |
3 | |
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 1, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | ||
21 | #include <signal.h> | |
22 | #include <setjmp.h> | |
23 | ||
24 | #include "config.h" | |
25 | #include "lisp.h" | |
26 | #undef NULL | |
27 | ||
28 | #define min(x,y) ((x) > (y) ? (y) : (x)) | |
29 | ||
30 | /* In this file, open, read and write refer to the system calls, | |
31 | not our sugared interfaces sys_open, sys_read and sys_write. | |
32 | Contrariwise, for systems where we use the system calls directly, | |
33 | define sys_read, etc. here as aliases for them. */ | |
34 | #ifndef read | |
35 | #define sys_read read | |
36 | #define sys_write write | |
37 | #endif /* `read' is not a macro */ | |
38 | ||
39 | #undef read | |
40 | #undef write | |
41 | ||
42 | #ifndef close | |
43 | #define sys_close close | |
44 | #else | |
45 | #undef close | |
46 | #endif | |
47 | ||
48 | #ifndef open | |
49 | #define sys_open open | |
50 | #else /* `open' is a macro */ | |
51 | #undef open | |
52 | #endif /* `open' is a macro */ | |
53 | ||
54 | #include <stdio.h> | |
55 | #include <sys/types.h> | |
56 | #include <sys/stat.h> | |
57 | #include <errno.h> | |
58 | ||
59 | extern int errno; | |
60 | #ifndef VMS | |
61 | extern char *sys_errlist[]; | |
62 | #endif | |
63 | ||
64 | #ifdef VMS | |
65 | #include <rms.h> | |
66 | #include <ttdef.h> | |
67 | #include <tt2def.h> | |
68 | #include <iodef.h> | |
69 | #include <ssdef.h> | |
70 | #include <descrip.h> | |
71 | #include <fibdef.h> | |
72 | #include <atrdef.h> | |
73 | #include <ctype.h> | |
74 | #include <string.h> | |
75 | #ifdef __GNUC__ | |
76 | #include <sys/file.h> | |
77 | #else | |
78 | #include <file.h> | |
79 | #endif | |
80 | #undef F_SETFL | |
81 | #ifndef RAB$C_BID | |
82 | #include <rab.h> | |
83 | #endif | |
84 | #define MAXIOSIZE ( 32 * PAGESIZE ) /* Don't I/O more than 32 blocks at a time */ | |
85 | #endif /* VMS */ | |
86 | ||
87 | #ifndef BSD4_1 | |
88 | #ifdef BSD /* this is done this way to avoid defined (BSD) || defined (USG) | |
89 | because the vms compiler doesn't grok `defined' */ | |
90 | #include <fcntl.h> | |
91 | #endif | |
92 | #ifdef USG | |
93 | #include <fcntl.h> | |
94 | #endif | |
95 | #endif /* not 4.1 bsd */ | |
96 | ||
97 | /* Get DGUX definition for FASYNC - DJB */ | |
98 | #ifdef DGUX | |
99 | #include <sys/file.h> | |
100 | #endif /* DGUX */ | |
101 | ||
102 | #include <sys/ioctl.h> | |
91bac16a | 103 | #include "systerm.h" |
86a5659e JB |
104 | |
105 | #ifdef BSD | |
106 | #ifdef BSD4_1 | |
107 | #include <wait.h> | |
108 | #else /* not 4.1 */ | |
109 | #include <sys/wait.h> | |
110 | #endif /* not 4.1 */ | |
111 | #endif /* BSD */ | |
112 | ||
86a5659e JB |
113 | #ifdef BROKEN_TIOCGWINSZ |
114 | #undef TIOCGWINSZ | |
115 | #endif | |
116 | ||
86a5659e JB |
117 | #ifdef USG |
118 | #include <sys/utsname.h> | |
119 | #include <string.h> | |
120 | #ifndef MEMORY_IN_STRING_H | |
121 | #include <memory.h> | |
122 | #endif | |
123 | #ifdef TIOCGWINSZ | |
124 | #ifdef NEED_SIOCTL | |
125 | #include <sys/sioctl.h> | |
126 | #endif | |
127 | #ifdef NEED_PTEM_H | |
128 | #include <sys/stream.h> | |
129 | #include <sys/ptem.h> | |
130 | #endif | |
131 | #endif /* TIOCGWINSZ */ | |
86a5659e JB |
132 | #endif /* USG */ |
133 | ||
86a5659e JB |
134 | extern int quit_char; |
135 | ||
0137dbf7 | 136 | #include "frame.h" |
86a5659e JB |
137 | #include "window.h" |
138 | #include "termhooks.h" | |
139 | #include "termchar.h" | |
140 | #include "termopts.h" | |
141 | #include "dispextern.h" | |
142 | #include "process.h" | |
143 | ||
144 | #ifdef NONSYSTEM_DIR_LIBRARY | |
145 | #include "ndir.h" | |
146 | #endif /* NONSYSTEM_DIR_LIBRARY */ | |
147 | ||
91bac16a JB |
148 | #include "syssignal.h" |
149 | #include "systime.h" | |
86a5659e JB |
150 | |
151 | static int baud_convert[] = | |
152 | #ifdef BAUD_CONVERT | |
153 | BAUD_CONVERT; | |
154 | #else | |
155 | { | |
156 | 0, 50, 75, 110, 135, 150, 200, 300, 600, 1200, | |
157 | 1800, 2400, 4800, 9600, 19200, 38400 | |
158 | }; | |
159 | #endif | |
160 | ||
161 | extern short ospeed; | |
162 | ||
91bac16a JB |
163 | /* The file descriptor for Emacs's input terminal. |
164 | Under Unix, this is always left zero; | |
165 | under VMS, we place the input channel number here. | |
166 | This allows us to write more code that works for both VMS and Unix. */ | |
167 | static int input_fd; | |
168 | ||
86a5659e JB |
169 | #ifdef VMS |
170 | static struct iosb | |
171 | { | |
172 | short status; | |
173 | short offset; | |
174 | short termlen; | |
175 | short term; | |
176 | } input_iosb; | |
177 | ||
178 | int kbd_input_ast (); | |
179 | ||
180 | int waiting_for_ast; | |
181 | int stop_input; | |
182 | int input_ef = 0; | |
183 | int timer_ef = 0; | |
184 | int process_ef = 0; | |
185 | int input_eflist; | |
186 | int timer_eflist; | |
187 | ||
86a5659e JB |
188 | static $DESCRIPTOR (input_dsc, "TT"); |
189 | static int terminator_mask[2] = { 0, 0 }; | |
190 | ||
191 | static struct sensemode { | |
192 | short status; | |
193 | unsigned char xmit_baud; | |
194 | unsigned char rcv_baud; | |
195 | unsigned char crfill; | |
196 | unsigned char lffill; | |
197 | unsigned char parity; | |
198 | unsigned char unused; | |
199 | char class; | |
200 | char type; | |
201 | short scr_wid; | |
202 | unsigned long tt_char : 24, scr_len : 8; | |
203 | unsigned long tt2_char; | |
204 | } sensemode_iosb; | |
86a5659e JB |
205 | #endif /* VMS */ |
206 | ||
207 | discard_tty_input () | |
208 | { | |
91bac16a | 209 | struct emacs_tty buf; |
86a5659e JB |
210 | |
211 | if (noninteractive) | |
212 | return; | |
213 | ||
214 | /* Discarding input is not safe when the input could contain | |
215 | replies from the X server. So don't do it. */ | |
216 | if (read_socket_hook) | |
217 | return; | |
218 | ||
219 | #ifdef VMS | |
220 | end_kbd_input (); | |
91bac16a JB |
221 | SYS$QIOW (0, input_fd, IO$_READVBLK|IO$M_PURGE, input_iosb, 0, 0, |
222 | &buf.main, 0, 0, terminator_mask, 0, 0); | |
86a5659e JB |
223 | queue_kbd_input (); |
224 | #else /* not VMS */ | |
225 | #ifdef APOLLO | |
226 | { | |
227 | int zero = 0; | |
228 | ioctl (0, TIOCFLUSH, &zero); | |
229 | } | |
230 | #else /* not Apollo */ | |
91bac16a JB |
231 | EMACS_GET_TTY (input_fd, &buf); |
232 | EMACS_SET_TTY (input_fd, &buf, 0); | |
86a5659e JB |
233 | #endif /* not Apollo */ |
234 | #endif /* not VMS */ | |
235 | } | |
236 | ||
237 | #ifdef SIGTSTP | |
238 | ||
239 | stuff_char (c) | |
240 | char c; | |
241 | { | |
242 | /* Should perhaps error if in batch mode */ | |
243 | #ifdef TIOCSTI | |
244 | ioctl (0, TIOCSTI, &c); | |
245 | #else /* no TIOCSTI */ | |
246 | error ("Cannot stuff terminal input characters in this version of Unix."); | |
247 | #endif /* no TIOCSTI */ | |
248 | } | |
249 | ||
250 | #endif /* SIGTSTP */ | |
251 | ||
252 | init_baud_rate () | |
253 | { | |
86a5659e JB |
254 | if (noninteractive) |
255 | ospeed = 0; | |
256 | else | |
257 | { | |
258 | #ifdef VMS | |
91bac16a JB |
259 | struct sensemode sg; |
260 | ||
261 | SYS$QIOW (0, input_fd, IO$_SENSEMODE, &sg, 0, 0, | |
86a5659e | 262 | &sg.class, 12, 0, 0, 0, 0 ); |
91bac16a JB |
263 | ospeed = sg.xmit_baud; |
264 | #else /* not VMS */ | |
265 | #ifdef HAVE_TERMIO | |
266 | struct termio sg; | |
267 | ||
268 | sg.c_cflag = (sg.c_cflag & ~CBAUD) | B9600; | |
269 | tcgetattr (0, &sg); | |
270 | ospeed = sg.c_cflag & CBAUD; | |
271 | #else /* neither VMS nor TERMIO */ | |
272 | #ifdef HAVE_TERMIOS | |
273 | struct termios sg; | |
274 | ||
275 | sg.c_cflag = (sg.c_cflag & ~CBAUD) | B9600; | |
86a5659e | 276 | tcgetattr (0, &sg); |
91bac16a JB |
277 | ospeed = sg.c_cflag & CBAUD; |
278 | #else /* neither VMS nor TERMIO nor TERMIOS */ | |
279 | struct sgttyb sg; | |
280 | ||
281 | sg.sg_ospeed = B9600; | |
282 | ioctl (0, TIOCGETP, &sg); | |
283 | ospeed = sg.sg_ospeed; | |
284 | #endif /* not HAVE_TERMIOS */ | |
285 | #endif /* not HAVE_TERMIO */ | |
86a5659e | 286 | #endif /* not VMS */ |
86a5659e JB |
287 | } |
288 | ||
289 | baud_rate = (ospeed < sizeof baud_convert / sizeof baud_convert[0] | |
290 | ? baud_convert[ospeed] : 9600); | |
291 | if (baud_rate == 0) | |
292 | baud_rate = 1200; | |
293 | } | |
294 | ||
295 | /*ARGSUSED*/ | |
296 | set_exclusive_use (fd) | |
297 | int fd; | |
298 | { | |
299 | #ifdef FIOCLEX | |
300 | ioctl (fd, FIOCLEX, 0); | |
301 | #endif | |
302 | /* Ok to do nothing if this feature does not exist */ | |
303 | } | |
304 | ||
305 | #ifndef subprocesses | |
306 | ||
307 | wait_without_blocking () | |
308 | { | |
309 | #ifdef BSD | |
310 | wait3 (0, WNOHANG | WUNTRACED, 0); | |
311 | #else | |
312 | croak ("wait_without_blocking"); | |
313 | #endif | |
314 | synch_process_alive = 0; | |
315 | } | |
316 | ||
317 | #endif /* not subprocesses */ | |
318 | ||
319 | int wait_debugging; /* Set nonzero to make following function work under dbx | |
320 | (at least for bsd). */ | |
321 | ||
322 | SIGTYPE | |
323 | wait_for_termination_signal () | |
324 | {} | |
325 | ||
326 | /* Wait for subprocess with process id `pid' to terminate and | |
327 | make sure it will get eliminated (not remain forever as a zombie) */ | |
328 | ||
329 | wait_for_termination (pid) | |
330 | int pid; | |
331 | { | |
332 | while (1) | |
333 | { | |
334 | #ifdef subprocesses | |
335 | #ifdef VMS | |
336 | int status; | |
337 | ||
338 | status = sys$forcex (&pid, 0, 0); | |
339 | break; | |
340 | #else /* not VMS */ | |
341 | ||
342 | /* Exit if the process has terminated. */ | |
343 | if (!synch_process_alive) | |
344 | break; | |
345 | /* Otherwise wait 1 second or until a signal comes in. */ | |
346 | signal (SIGALRM, wait_for_termination_signal); | |
347 | alarm (1); | |
348 | pause (); | |
349 | alarm (0); | |
350 | signal (SIGALRM, SIG_IGN); | |
351 | #endif /* not VMS */ | |
352 | #else /* not subprocesses */ | |
353 | #ifndef BSD4_1 | |
354 | if (kill (pid, 0) < 0) | |
355 | break; | |
356 | wait (0); | |
357 | #else /* BSD4_1 */ | |
358 | int status; | |
359 | status = wait (0); | |
360 | if (status == pid || status == -1) | |
361 | break; | |
362 | #endif /* BSD4_1 */ | |
363 | #endif /* not subprocesses */ | |
364 | } | |
365 | } | |
366 | ||
367 | #ifdef subprocesses | |
368 | ||
369 | /* | |
370 | * flush any pending output | |
371 | * (may flush input as well; it does not matter the way we use it) | |
372 | */ | |
373 | ||
374 | flush_pending_output (channel) | |
375 | int channel; | |
376 | { | |
377 | #ifdef HAVE_TERMIOS | |
378 | /* If we try this, we get hit with SIGTTIN, because | |
379 | the child's tty belongs to the child's pgrp. */ | |
380 | #else | |
381 | #ifdef TCFLSH | |
382 | ioctl (channel, TCFLSH, 1); | |
383 | #else | |
384 | #ifdef TIOCFLUSH | |
385 | int zero = 0; | |
386 | /* 3rd arg should be ignored | |
387 | but some 4.2 kernels actually want the address of an int | |
388 | and nonzero means something different. */ | |
389 | ioctl (channel, TIOCFLUSH, &zero); | |
390 | #endif | |
391 | #endif | |
392 | #endif | |
393 | } | |
394 | ||
395 | #ifndef VMS | |
396 | /* Set up the terminal at the other end of a pseudo-terminal that | |
397 | we will be controlling an inferior through. | |
398 | It should not echo or do line-editing, since that is done | |
399 | in Emacs. No padding needed for insertion into an Emacs buffer. */ | |
400 | ||
401 | child_setup_tty (out) | |
402 | int out; | |
403 | { | |
91bac16a JB |
404 | struct emacs_tty s; |
405 | ||
406 | EMACS_GET_TTY (out, &s); | |
86a5659e | 407 | |
86a5659e | 408 | #ifdef HAVE_TERMIO |
91bac16a JB |
409 | s.main.c_oflag |= OPOST; /* Enable output postprocessing */ |
410 | s.main.c_oflag &= ~ONLCR; /* Disable map of NL to CR-NL on output */ | |
411 | s.main.c_oflag &= ~(NLDLY|CRDLY|TABDLY|BSDLY|VTDLY|FFDLY); | |
412 | /* No output delays */ | |
413 | s.main.c_lflag &= ~ECHO; /* Disable echo */ | |
414 | s.main.c_lflag |= ISIG; /* Enable signals */ | |
415 | s.main.c_iflag &= ~IUCLC; /* Disable map of upper case to lower on | |
416 | input */ | |
417 | s.main.c_oflag &= ~OLCUC; /* Disable map of lower case to upper on | |
418 | output */ | |
419 | #if 0 | |
420 | /* Said to be unnecesary: */ | |
421 | s.main.c_cc[VMIN] = 1; /* minimum number of characters to accept */ | |
422 | s.main.c_cc[VTIME] = 0; /* wait forever for at least 1 character */ | |
423 | #endif | |
424 | ||
425 | s.main.c_lflag |= ICANON; /* Enable erase/kill and eof processing */ | |
426 | s.main.c_cc[VEOF] = 04; /* insure that EOF is Control-D */ | |
427 | s.main.c_cc[VERASE] = 0377; /* disable erase processing */ | |
428 | s.main.c_cc[VKILL] = 0377; /* disable kill processing */ | |
429 | ||
86a5659e | 430 | #ifdef HPUX |
91bac16a | 431 | s.main.c_cflag = (s.main.c_cflag & ~CBAUD) | B9600; /* baud rate sanity */ |
86a5659e | 432 | #endif /* HPUX */ |
91bac16a | 433 | |
86a5659e JB |
434 | #ifdef AIX |
435 | /* AIX enhanced edit loses NULs, so disable it */ | |
436 | #ifndef IBMR2AIX | |
91bac16a JB |
437 | s.main.c_line = 0; |
438 | s.main.c_iflag &= ~ASCEDIT; | |
86a5659e JB |
439 | #endif |
440 | /* Also, PTY overloads NUL and BREAK. | |
441 | don't ignore break, but don't signal either, so it looks like NUL. */ | |
91bac16a JB |
442 | s.main.c_iflag &= ~IGNBRK; |
443 | s.main.c_iflag &= ~BRKINT; | |
444 | /* QUIT and INTR work better as signals, so disable character forms */ | |
445 | s.main.c_cc[VQUIT] = 0377; | |
446 | s.main.c_cc[VINTR] = 0377; | |
447 | s.main.c_cc[VEOL] = 0377; | |
448 | s.main.c_lflag &= ~ISIG; | |
449 | s.main.c_cflag = (s.main.c_cflag & ~CBAUD) | B9600; /* baud rate sanity */ | |
86a5659e JB |
450 | #endif /* AIX */ |
451 | ||
452 | #else /* not HAVE_TERMIO */ | |
91bac16a JB |
453 | |
454 | s.main.sg_flags &= ~(ECHO | CRMOD | ANYP | ALLDELAY | RAW | LCASE | |
455 | | CBREAK | TANDEM); | |
456 | s.main.sg_erase = 0377; | |
457 | s.main.sg_kill = 0377; | |
458 | ||
86a5659e JB |
459 | #endif /* not HAVE_TERMIO */ |
460 | ||
91bac16a | 461 | EMACS_SET_TTY (out, &s, 0); |
86a5659e JB |
462 | |
463 | #ifdef BSD4_1 | |
464 | if (interrupt_input) | |
465 | reset_sigio (); | |
466 | #endif /* BSD4_1 */ | |
467 | #ifdef RTU | |
468 | { | |
469 | int zero = 0; | |
470 | ioctl (out, FIOASYNC, &zero); | |
471 | } | |
472 | #endif /* RTU */ | |
473 | } | |
474 | #endif /* not VMS */ | |
475 | ||
476 | #endif /* subprocesses */ | |
477 | ||
478 | /*ARGSUSED*/ | |
479 | setpgrp_of_tty (pid) | |
480 | int pid; | |
481 | { | |
ffd56f97 | 482 | EMACS_SET_TTY_PGRP (input_fd, &pid); |
86a5659e JB |
483 | } |
484 | ||
485 | /* Record a signal code and the handler for it. */ | |
486 | struct save_signal | |
487 | { | |
488 | int code; | |
489 | SIGTYPE (*handler) (); | |
490 | }; | |
491 | ||
492 | /* Suspend the Emacs process; give terminal to its superior. */ | |
493 | ||
494 | sys_suspend () | |
495 | { | |
496 | #ifdef VMS | |
497 | unsigned long parent_id; | |
498 | ||
499 | parent_id = getppid (); | |
500 | if (parent_id && parent_id != 0xffffffff) | |
501 | { | |
502 | SIGTYPE (*oldsig)() = (int) signal (SIGINT, SIG_IGN); | |
503 | int status = LIB$ATTACH (&parent_id) & 1; | |
504 | signal (SIGINT, oldsig); | |
505 | return status; | |
506 | } | |
507 | else | |
508 | { | |
509 | struct { | |
510 | int l; | |
511 | char *a; | |
512 | } d_prompt; | |
513 | d_prompt.l = sizeof ("Emacs: "); /* Our special prompt */ | |
514 | d_prompt.a = "Emacs: "; /* Just a reminder */ | |
515 | lib$spawn (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, &d_prompt, 0); | |
516 | return 1; | |
517 | } | |
518 | return -1; | |
519 | #else | |
520 | #ifdef SIGTSTP | |
521 | ||
91bac16a | 522 | EMACS_KILLPG (getpgrp (0), SIGTSTP); |
86a5659e JB |
523 | |
524 | #else /* No SIGTSTP */ | |
525 | #ifdef USG_JOBCTRL /* If you don't know what this is don't mess with it */ | |
526 | ptrace (0, 0, 0, 0); /* set for ptrace - caught by csh */ | |
527 | kill (getpid (), SIGQUIT); | |
528 | ||
529 | #else /* No SIGTSTP or USG_JOBCTRL */ | |
530 | ||
531 | /* On a system where suspending is not implemented, | |
532 | instead fork a subshell and let it talk directly to the terminal | |
533 | while we wait. */ | |
534 | int pid = fork (); | |
535 | struct save_signal saved_handlers[5]; | |
536 | ||
537 | saved_handlers[0].code = SIGINT; | |
538 | saved_handlers[1].code = SIGQUIT; | |
539 | saved_handlers[2].code = SIGTERM; | |
540 | #ifdef SIGIO | |
541 | saved_handlers[3].code = SIGIO; | |
542 | saved_handlers[4].code = 0; | |
543 | #else | |
544 | saved_handlers[3].code = 0; | |
545 | #endif | |
546 | ||
547 | if (pid == -1) | |
548 | error ("Can't spawn subshell"); | |
549 | if (pid == 0) | |
550 | { | |
551 | char *sh; | |
552 | ||
553 | sh = (char *) egetenv ("SHELL"); | |
554 | if (sh == 0) | |
555 | sh = "sh"; | |
556 | /* Use our buffer's default directory for the subshell. */ | |
557 | { | |
558 | Lisp_Object dir; | |
559 | unsigned char *str; | |
560 | int len; | |
561 | ||
562 | /* mentioning current_buffer->buffer would mean including buffer.h, | |
563 | which somehow wedges the hp compiler. So instead... */ | |
564 | ||
565 | dir = intern ("default-directory"); | |
566 | /* Can't use NULL */ | |
567 | if (XFASTINT (Fboundp (dir)) == XFASTINT (Qnil)) | |
568 | goto xyzzy; | |
569 | dir = Fsymbol_value (dir); | |
570 | if (XTYPE (dir) != Lisp_String) | |
571 | goto xyzzy; | |
572 | ||
573 | str = (unsigned char *) alloca (XSTRING (dir)->size + 2); | |
574 | len = XSTRING (dir)->size; | |
575 | bcopy (XSTRING (dir)->data, str, len); | |
576 | if (str[len - 1] != '/') str[len++] = '/'; | |
577 | str[len] = 0; | |
578 | chdir (str); | |
579 | } | |
580 | xyzzy: | |
581 | #ifdef subprocesses | |
582 | close_process_descs (); /* Close Emacs's pipes/ptys */ | |
583 | #endif | |
584 | nice (-nice (0)); /* Give the new shell the default piority */ | |
585 | execlp (sh, sh, 0); | |
586 | write (1, "Can't execute subshell", 22); | |
587 | _exit (1); | |
588 | } | |
589 | ||
590 | save_signal_handlers (saved_handlers); | |
591 | wait_for_termination (pid); | |
592 | restore_signal_handlers (saved_handlers); | |
593 | ||
594 | #endif /* no USG_JOBCTRL */ | |
595 | #endif /* no SIGTSTP */ | |
596 | #endif /* not VMS */ | |
597 | } | |
598 | ||
599 | save_signal_handlers (saved_handlers) | |
600 | struct save_signal *saved_handlers; | |
601 | { | |
602 | while (saved_handlers->code) | |
603 | { | |
508b171c JA |
604 | saved_handlers->handler |
605 | = (SIGTYPE (*) ()) signal (saved_handlers->code, SIG_IGN); | |
86a5659e JB |
606 | saved_handlers++; |
607 | } | |
608 | } | |
609 | ||
610 | restore_signal_handlers (saved_handlers) | |
611 | struct save_signal *saved_handlers; | |
612 | { | |
613 | while (saved_handlers->code) | |
614 | { | |
615 | signal (saved_handlers->code, saved_handlers->handler); | |
616 | saved_handlers++; | |
617 | } | |
618 | } | |
619 | \f | |
620 | #ifdef F_SETFL | |
621 | ||
622 | int old_fcntl_flags; | |
623 | ||
624 | init_sigio () | |
625 | { | |
626 | #ifdef FASYNC | |
627 | old_fcntl_flags = fcntl (0, F_GETFL, 0) & ~FASYNC; | |
628 | #endif | |
629 | request_sigio (); | |
630 | } | |
631 | ||
632 | reset_sigio () | |
633 | { | |
634 | unrequest_sigio (); | |
635 | } | |
636 | ||
637 | #ifdef FASYNC /* F_SETFL does not imply existance of FASYNC */ | |
638 | ||
639 | request_sigio () | |
640 | { | |
641 | #ifdef SIGWINCH | |
e065a56e | 642 | sigunblock (sigmask (SIGWINCH)); |
86a5659e JB |
643 | #endif |
644 | fcntl (0, F_SETFL, old_fcntl_flags | FASYNC); | |
645 | ||
646 | interrupts_deferred = 0; | |
647 | } | |
648 | ||
649 | unrequest_sigio () | |
650 | { | |
651 | #ifdef SIGWINCH | |
e065a56e | 652 | sigblock (sigmask (SIGWINCH)); |
86a5659e JB |
653 | #endif |
654 | fcntl (0, F_SETFL, old_fcntl_flags); | |
655 | interrupts_deferred = 1; | |
656 | } | |
657 | ||
658 | #else /* no FASYNC */ | |
659 | #ifdef STRIDE /* Stride doesn't have FASYNC - use FIOASYNC */ | |
660 | ||
661 | request_sigio () | |
662 | { | |
663 | int on = 1; | |
664 | ioctl (0, FIOASYNC, &on); | |
665 | interrupts_deferred = 0; | |
666 | } | |
667 | ||
668 | unrequest_sigio () | |
669 | { | |
670 | int off = 0; | |
671 | ||
672 | ioctl (0, FIOASYNC, &off); | |
673 | interrupts_deferred = 1; | |
674 | } | |
675 | ||
676 | #else /* not FASYNC, not STRIDE */ | |
677 | ||
678 | request_sigio () | |
679 | { | |
680 | croak ("request_sigio"); | |
681 | } | |
682 | ||
683 | unrequest_sigio () | |
684 | { | |
685 | croak ("unrequest_sigio"); | |
686 | } | |
687 | ||
688 | #endif /* STRIDE */ | |
689 | #endif /* FASYNC */ | |
690 | #endif /* F_SETFL */ | |
691 | \f | |
91bac16a JB |
692 | /* The initial tty mode bits */ |
693 | struct emacs_tty old_tty; | |
86a5659e JB |
694 | |
695 | int term_initted; /* 1 if outer tty status has been recorded */ | |
696 | ||
91bac16a JB |
697 | #ifdef BSD4_1 |
698 | /* BSD 4.1 needs to keep track of the lmode bits in order to start | |
699 | sigio. */ | |
700 | int lmode; | |
701 | #endif | |
702 | ||
86a5659e JB |
703 | #ifdef F_SETOWN |
704 | int old_fcntl_owner; | |
705 | #endif /* F_SETOWN */ | |
706 | ||
86a5659e JB |
707 | /* This may also be defined in stdio, |
708 | but if so, this does no harm, | |
709 | and using the same name avoids wasting the other one's space. */ | |
710 | ||
711 | #if defined (USG) || defined (DGUX) | |
712 | unsigned char _sobuf[BUFSIZ+8]; | |
713 | #else | |
714 | char _sobuf[BUFSIZ]; | |
715 | #endif | |
716 | ||
717 | #ifdef TIOCGLTC | |
718 | static struct ltchars new_ltchars = {-1,-1,-1,-1,-1,-1}; | |
719 | #endif | |
720 | #ifdef TIOCGETC | |
721 | static struct tchars new_tchars = {-1,-1,-1,-1,-1,-1}; | |
722 | #endif | |
723 | ||
724 | init_sys_modes () | |
725 | { | |
91bac16a JB |
726 | struct emacs_tty tty; |
727 | ||
86a5659e JB |
728 | #ifdef VMS |
729 | #if 0 | |
730 | static int oob_chars[2] = {0, 1 << 7}; /* catch C-g's */ | |
731 | extern int (*interrupt_signal) (); | |
732 | #endif | |
733 | #endif | |
734 | ||
735 | if (noninteractive) | |
736 | return; | |
737 | ||
738 | #ifdef VMS | |
739 | if (!input_ef) | |
740 | input_ef = get_kbd_event_flag (); | |
741 | /* LIB$GET_EF (&input_ef); */ | |
742 | SYS$CLREF (input_ef); | |
743 | waiting_for_ast = 0; | |
744 | if (!timer_ef) | |
745 | timer_ef = get_timer_event_flag (); | |
746 | /* LIB$GET_EF (&timer_ef); */ | |
747 | SYS$CLREF (timer_ef); | |
748 | if (!process_ef) | |
749 | { | |
750 | LIB$GET_EF (&process_ef); | |
751 | SYS$CLREF (process_ef); | |
752 | } | |
753 | if (input_ef / 32 != process_ef / 32) | |
754 | croak ("Input and process event flags in different clusters."); | |
755 | if (input_ef / 32 != timer_ef / 32) | |
756 | croak ("Input and process event flags in different clusters."); | |
757 | input_eflist = ((unsigned) 1 << (input_ef % 32)) | | |
758 | ((unsigned) 1 << (process_ef % 32)); | |
759 | timer_eflist = ((unsigned) 1 << (input_ef % 32)) | | |
760 | ((unsigned) 1 << (timer_ef % 32)); | |
86a5659e JB |
761 | #ifndef VMS4_4 |
762 | sys_access_reinit (); | |
763 | #endif | |
86a5659e | 764 | #endif /* not VMS */ |
91bac16a JB |
765 | |
766 | EMACS_GET_TTY (input_fd, &old_tty); | |
767 | ||
86a5659e JB |
768 | if (!read_socket_hook && EQ (Vwindow_system, Qnil)) |
769 | { | |
91bac16a | 770 | tty = old_tty; |
86a5659e JB |
771 | |
772 | #ifdef HAVE_TERMIO | |
91bac16a JB |
773 | tty.main.c_iflag |= (IGNBRK); /* Ignore break condition */ |
774 | tty.main.c_iflag &= ~ICRNL; /* Disable map of CR to NL on input */ | |
86a5659e | 775 | #ifdef ISTRIP |
91bac16a | 776 | tty.main.c_iflag &= ~ISTRIP; /* don't strip 8th bit on input */ |
86a5659e | 777 | #endif |
91bac16a JB |
778 | tty.main.c_lflag &= ~ECHO; /* Disable echo */ |
779 | tty.main.c_lflag &= ~ICANON; /* Disable erase/kill processing */ | |
780 | tty.main.c_lflag |= ISIG; /* Enable signals */ | |
86a5659e JB |
781 | if (flow_control) |
782 | { | |
91bac16a | 783 | tty.main.c_iflag |= IXON; /* Enable start/stop output control */ |
86a5659e | 784 | #ifdef IXANY |
91bac16a | 785 | tty.main.c_iflag &= ~IXANY; |
86a5659e JB |
786 | #endif /* IXANY */ |
787 | } | |
788 | else | |
91bac16a JB |
789 | tty.main.c_iflag &= ~IXON; /* Disable start/stop output control */ |
790 | tty.main.c_oflag &= ~ONLCR; /* Disable map of NL to CR-NL | |
791 | on output */ | |
792 | tty.main.c_oflag &= ~TAB3; /* Disable tab expansion */ | |
86a5659e JB |
793 | #ifdef CS8 |
794 | if (meta_key) | |
795 | { | |
91bac16a JB |
796 | tty.main.c_cflag |= CS8; /* allow 8th bit on input */ |
797 | tty.main.c_cflag &= ~PARENB;/* Don't check parity */ | |
86a5659e JB |
798 | } |
799 | #endif | |
91bac16a | 800 | tty.main.c_cc[VINTR] = quit_char; /* C-g (usually) gives SIGINT */ |
86a5659e JB |
801 | /* Set up C-g for both SIGQUIT and SIGINT. |
802 | We don't know which we will get, but we handle both alike | |
803 | so which one it really gives us does not matter. */ | |
91bac16a JB |
804 | tty.main.c_cc[VQUIT] = quit_char; |
805 | tty.main.c_cc[VMIN] = 1; /* Input should wait for at least 1 char */ | |
806 | tty.main.c_cc[VTIME] = 0; /* no matter how long that takes. */ | |
86a5659e | 807 | #ifdef VSWTCH |
91bac16a JB |
808 | tty.main.c_cc[VSWTCH] = CDEL; /* Turn off shell layering use |
809 | of C-z */ | |
86a5659e JB |
810 | #endif /* VSWTCH */ |
811 | #if defined (mips) || defined (HAVE_TCATTR) | |
812 | /* The following code looks like the right thing in general, | |
813 | but it is said to cause a crash on USG V.4. | |
814 | Let's play safe by turning it on only for the MIPS. */ | |
815 | #ifdef VSUSP | |
91bac16a | 816 | tty.main.c_cc[VSUSP] = CDEL; /* Turn off mips handling of C-z. */ |
86a5659e JB |
817 | #endif /* VSUSP */ |
818 | #ifdef V_DSUSP | |
91bac16a | 819 | tty.main.c_cc[V_DSUSP] = CDEL; /* Turn off mips handling of C-y. */ |
86a5659e JB |
820 | #endif /* V_DSUSP */ |
821 | #endif /* mips or HAVE_TCATTR */ | |
822 | #ifdef AIX | |
823 | #ifndef IBMR2AIX | |
824 | /* AIX enhanced edit loses NULs, so disable it */ | |
91bac16a JB |
825 | tty.main.c_line = 0; |
826 | tty.main.c_iflag &= ~ASCEDIT; | |
86a5659e | 827 | #else |
91bac16a JB |
828 | tty.main.c_cc[VSTRT] = 255; |
829 | tty.main.c_cc[VSTOP] = 255; | |
830 | tty.main.c_cc[VSUSP] = 255; | |
831 | tty.main.c_cc[VDSUSP] = 255; | |
86a5659e JB |
832 | #endif /* IBMR2AIX */ |
833 | /* Also, PTY overloads NUL and BREAK. | |
834 | don't ignore break, but don't signal either, so it looks like NUL. | |
835 | This really serves a purpose only if running in an XTERM window | |
836 | or via TELNET or the like, but does no harm elsewhere. */ | |
91bac16a JB |
837 | tty.main.c_iflag &= ~IGNBRK; |
838 | tty.main.c_iflag &= ~BRKINT; | |
86a5659e JB |
839 | #endif |
840 | #else /* if not HAVE_TERMIO */ | |
841 | #ifdef VMS | |
91bac16a | 842 | tty.main.tt_char |= TT$M_NOECHO; |
86a5659e | 843 | if (meta_key) |
91bac16a | 844 | tty.main.tt_char |= TT$M_EIGHTBIT |
86a5659e | 845 | if (flow_control) |
91bac16a | 846 | tty.main.tt_char |= TT$M_TTSYNC; |
86a5659e | 847 | else |
91bac16a JB |
848 | tty.main.tt_char &= ~TT$M_TTSYNC; |
849 | tty.main.tt2_char |= TT2$M_PASTHRU | TT2$M_XON; | |
86a5659e | 850 | #else /* not VMS (BSD, that is) */ |
91bac16a | 851 | tty.main.sg_flags &= ~(ECHO | CRMOD | XTABS); |
86a5659e | 852 | if (meta_key) |
91bac16a JB |
853 | tty.main.sg_flags |= ANYP; |
854 | tty.main.sg_flags |= interrupt_input ? RAW : CBREAK; | |
86a5659e JB |
855 | #endif /* not VMS (BSD, that is) */ |
856 | #endif /* not HAVE_TERMIO */ | |
857 | ||
91bac16a JB |
858 | /* If going to use CBREAK mode, we must request C-g to interrupt |
859 | and turn off start and stop chars, etc. If not going to use | |
860 | CBREAK mode, do this anyway so as to turn off local flow | |
861 | control for user coming over network on 4.2; in this case, | |
862 | only t_stopc and t_startc really matter. */ | |
863 | #ifndef HAVE_TERMIO | |
864 | #ifdef TIOCGETC | |
865 | /* Note: if not using CBREAK mode, it makes no difference how we | |
866 | set this */ | |
867 | tty.tchars = new_tchars; | |
868 | tty.tchars.t_intrc = quit_char; | |
869 | if (flow_control) | |
870 | { | |
871 | tty.tchars.t_startc = '\021'; | |
872 | tty.tchars.t_stopc = '\023'; | |
873 | } | |
874 | ||
875 | /* LPASS8 is new in 4.3, and makes cbreak mode provide all 8 bits. */ | |
876 | #ifndef LPASS8 | |
877 | #define LPASS8 0 | |
86a5659e | 878 | #endif |
91bac16a JB |
879 | |
880 | #ifdef BSD4_1 | |
881 | #define LNOFLSH 0100000 | |
882 | #endif | |
883 | ||
884 | tty.lmode = LDECCTQ | LLITOUT | LPASS8 | LNOFLSH | old_tty.lmode; | |
885 | ||
886 | #ifdef BSD4_1 | |
887 | lmode = tty.lmode; | |
888 | #endif | |
889 | ||
890 | #endif /* TIOCGETC */ | |
891 | #endif /* not HAVE_TERMIO */ | |
892 | ||
893 | #ifdef TIOCGLTC | |
894 | tty.ltchars = new_ltchars; | |
895 | #endif /* TIOCGLTC */ | |
896 | ||
897 | EMACS_SET_TTY (input_fd, &tty, 0); | |
86a5659e JB |
898 | |
899 | /* This code added to insure that, if flow-control is not to be used, | |
0137dbf7 | 900 | we have an unlocked terminal at the start. */ |
91bac16a | 901 | |
86a5659e JB |
902 | #ifdef TCXONC |
903 | if (!flow_control) ioctl (0, TCXONC, 1); | |
904 | #endif | |
905 | #ifndef APOLLO | |
906 | #ifdef TIOCSTART | |
907 | if (!flow_control) ioctl (0, TIOCSTART, 0); | |
908 | #endif | |
909 | #endif | |
910 | ||
911 | #ifdef AIX | |
912 | hft_init (); | |
913 | #ifdef IBMR2AIX | |
914 | { | |
915 | /* IBM's HFT device usually thinks a ^J should be LF/CR. We need it | |
916 | to be only LF. This is the way that is done. */ | |
917 | struct termio tty; | |
918 | ||
919 | if (ioctl (1, HFTGETID, &tty) != -1) | |
920 | write (1, "\033[20l", 5); | |
921 | } | |
922 | #endif | |
923 | #endif | |
924 | ||
86a5659e JB |
925 | #ifdef VMS |
926 | /* Appears to do nothing when in PASTHRU mode. | |
91bac16a | 927 | SYS$QIOW (0, input_fd, IO$_SETMODE|IO$M_OUTBAND, 0, 0, 0, |
86a5659e JB |
928 | interrupt_signal, oob_chars, 0, 0, 0, 0); |
929 | */ | |
930 | queue_kbd_input (0); | |
931 | #endif /* VMS */ | |
932 | } | |
933 | ||
934 | #ifdef F_SETFL | |
935 | #ifdef F_GETOWN /* F_SETFL does not imply existance of F_GETOWN */ | |
936 | if (interrupt_input) | |
937 | { | |
938 | old_fcntl_owner = fcntl (0, F_GETOWN, 0); | |
939 | fcntl (0, F_SETOWN, getpid ()); | |
940 | init_sigio (); | |
941 | } | |
942 | #endif /* F_GETOWN */ | |
943 | #endif /* F_SETFL */ | |
944 | ||
945 | #ifdef BSD4_1 | |
946 | if (interrupt_input) | |
947 | init_sigio (); | |
948 | #endif | |
949 | ||
950 | #ifdef VMS /* VMS sometimes has this symbol but lacks setvbuf. */ | |
951 | #undef _IOFBF | |
952 | #endif | |
953 | #ifdef _IOFBF | |
954 | /* This symbol is defined on recent USG systems. | |
955 | Someone says without this call USG won't really buffer the file | |
956 | even with a call to setbuf. */ | |
957 | setvbuf (stdout, _sobuf, _IOFBF, sizeof _sobuf); | |
958 | #else | |
959 | setbuf (stdout, _sobuf); | |
960 | #endif | |
961 | set_terminal_modes (); | |
962 | if (term_initted && no_redraw_on_reenter) | |
963 | { | |
964 | if (display_completed) | |
965 | direct_output_forward_char (0); | |
966 | } | |
967 | else | |
968 | { | |
0137dbf7 JB |
969 | frame_garbaged = 1; |
970 | #ifdef MULTI_FRAME | |
971 | if (FRAMEP (Vterminal_frame)) | |
972 | FRAME_GARBAGED_P (XFRAME (Vterminal_frame)) = 1; | |
86a5659e JB |
973 | #endif |
974 | } | |
91bac16a | 975 | |
86a5659e JB |
976 | term_initted = 1; |
977 | } | |
978 | ||
979 | /* Return nonzero if safe to use tabs in output. | |
980 | At the time this is called, init_sys_modes has not been done yet. */ | |
981 | ||
982 | tabs_safe_p () | |
983 | { | |
91bac16a JB |
984 | struct emacs_tty tty; |
985 | ||
986 | EMACS_GET_TTY (input_fd, &tty); | |
987 | return EMACS_TTY_TABS_OK (&tty); | |
86a5659e JB |
988 | } |
989 | ||
990 | /* Get terminal size from system. | |
991 | Store number of lines into *heightp and width into *widthp. | |
992 | If zero or a negative number is stored, the value is not valid. */ | |
993 | ||
0137dbf7 | 994 | get_frame_size (widthp, heightp) |
86a5659e JB |
995 | int *widthp, *heightp; |
996 | { | |
86a5659e | 997 | |
86a5659e | 998 | #ifdef TIOCGWINSZ |
91bac16a JB |
999 | |
1000 | /* BSD-style. */ | |
86a5659e | 1001 | struct winsize size; |
91bac16a JB |
1002 | |
1003 | if (ioctl (input_fd, TIOCGWINSZ, &size) == -1) | |
1004 | *widthp = *heightp = 0; | |
1005 | else | |
1006 | { | |
1007 | *widthp = size.ws_col; | |
1008 | *heightp = size.ws_row; | |
1009 | } | |
1010 | ||
1011 | #else | |
1012 | #ifdef TIOCGSIZE | |
1013 | ||
1014 | /* SunOS - style. */ | |
1015 | struct ttysize size; | |
1016 | ||
1017 | if (ioctl (input_fd, TIOCGSIZE, &size) == -1) | |
1018 | *widthp = *heightp = 0; | |
1019 | else | |
1020 | { | |
1021 | *widthp = size.ts_cols; | |
1022 | *heightp = size.ts_lines; | |
1023 | } | |
1024 | ||
1025 | #else | |
86a5659e | 1026 | #ifdef VMS |
91bac16a JB |
1027 | |
1028 | struct sensemode tty; | |
1029 | ||
1030 | SYS$QIOW (0, input_fd, IO$_SENSEMODE, &tty, 0, 0, | |
86a5659e JB |
1031 | &tty.class, 12, 0, 0, 0, 0); |
1032 | *widthp = tty.scr_wid; | |
1033 | *heightp = tty.scr_len; | |
91bac16a | 1034 | |
86a5659e | 1035 | #else /* system doesn't know size */ |
91bac16a | 1036 | |
86a5659e JB |
1037 | *widthp = 0; |
1038 | *heightp = 0; | |
91bac16a JB |
1039 | |
1040 | #endif /* not VMS */ | |
1041 | #endif /* not SunOS-style */ | |
1042 | #endif /* not BSD-style */ | |
86a5659e | 1043 | } |
91bac16a | 1044 | |
86a5659e | 1045 | \f |
91bac16a | 1046 | /* Prepare the terminal for exiting Emacs; move the cursor to the |
0137dbf7 | 1047 | bottom of the frame, turn off interrupt-driven I/O, etc. */ |
86a5659e JB |
1048 | reset_sys_modes () |
1049 | { | |
1050 | if (noninteractive) | |
1051 | { | |
1052 | fflush (stdout); | |
1053 | return; | |
1054 | } | |
1055 | if (!term_initted) | |
1056 | return; | |
1057 | if (read_socket_hook || !EQ (Vwindow_system, Qnil)) | |
1058 | return; | |
0137dbf7 JB |
1059 | cursor_to (FRAME_HEIGHT (selected_frame) - 1, 0); |
1060 | clear_end_of_line (FRAME_WIDTH (selected_frame)); | |
86a5659e | 1061 | /* clear_end_of_line may move the cursor */ |
0137dbf7 | 1062 | cursor_to (FRAME_HEIGHT (selected_frame) - 1, 0); |
86a5659e JB |
1063 | #ifdef IBMR2AIX |
1064 | { | |
1065 | /* HFT devices normally use ^J as a LF/CR. We forced it to | |
1066 | do the LF only. Now, we need to reset it. */ | |
1067 | struct termio tty; | |
1068 | ||
1069 | if (ioctl (1, HFTGETID, &tty) != -1) | |
1070 | write (1, "\033[20h", 5); | |
1071 | } | |
1072 | #endif | |
1073 | ||
1074 | reset_terminal_modes (); | |
1075 | fflush (stdout); | |
1076 | #ifdef BSD | |
1077 | #ifndef BSD4_1 | |
1078 | /* Avoid possible loss of output when changing terminal modes. */ | |
1079 | fsync (fileno (stdout)); | |
1080 | #endif | |
1081 | #endif | |
91bac16a | 1082 | |
86a5659e JB |
1083 | #ifdef F_SETFL |
1084 | #ifdef F_SETOWN /* F_SETFL does not imply existance of F_SETOWN */ | |
1085 | if (interrupt_input) | |
1086 | { | |
1087 | reset_sigio (); | |
1088 | fcntl (0, F_SETOWN, old_fcntl_owner); | |
1089 | } | |
1090 | #endif /* F_SETOWN */ | |
1091 | #endif /* F_SETFL */ | |
1092 | #ifdef BSD4_1 | |
1093 | if (interrupt_input) | |
1094 | reset_sigio (); | |
1095 | #endif /* BSD4_1 */ | |
91bac16a JB |
1096 | |
1097 | while (EMACS_SET_TTY (input_fd, &old_tty, 0) < 0 && errno == EINTR) | |
1098 | ; | |
86a5659e JB |
1099 | |
1100 | #ifdef AIX | |
1101 | hft_reset (); | |
1102 | #endif | |
1103 | } | |
1104 | \f | |
1105 | #ifdef HAVE_PTYS | |
1106 | ||
1107 | /* Set up the proper status flags for use of a pty. */ | |
1108 | ||
1109 | setup_pty (fd) | |
1110 | int fd; | |
1111 | { | |
1112 | /* I'm told that TOICREMOTE does not mean control chars | |
1113 | "can't be sent" but rather that they don't have | |
1114 | input-editing or signaling effects. | |
1115 | That should be good, because we have other ways | |
1116 | to do those things in Emacs. | |
1117 | However, telnet mode seems not to work on 4.2. | |
1118 | So TIOCREMOTE is turned off now. */ | |
1119 | ||
1120 | /* Under hp-ux, if TIOCREMOTE is turned on, some calls | |
1121 | will hang. In particular, the "timeout" feature (which | |
1122 | causes a read to return if there is no data available) | |
1123 | does this. Also it is known that telnet mode will hang | |
1124 | in such a way that Emacs must be stopped (perhaps this | |
1125 | is the same problem). | |
1126 | ||
1127 | If TIOCREMOTE is turned off, then there is a bug in | |
1128 | hp-ux which sometimes loses data. Apparently the | |
1129 | code which blocks the master process when the internal | |
1130 | buffer fills up does not work. Other than this, | |
1131 | though, everything else seems to work fine. | |
1132 | ||
1133 | Since the latter lossage is more benign, we may as well | |
1134 | lose that way. -- cph */ | |
1135 | #ifdef FIONBIO | |
1136 | #ifdef SYSV_PTYS | |
1137 | { | |
1138 | int on = 1; | |
1139 | ioctl (fd, FIONBIO, &on); | |
1140 | } | |
1141 | #endif | |
1142 | #endif | |
1143 | #ifdef IBMRTAIX | |
1144 | /* On AIX, the parent gets SIGHUP when a pty attached child dies. So, we */ | |
1145 | /* ignore SIGHUP once we've started a child on a pty. Note that this may */ | |
1146 | /* cause EMACS not to die when it should, i.e., when its own controlling */ | |
1147 | /* tty goes away. I've complained to the AIX developers, and they may */ | |
1148 | /* change this behavior, but I'm not going to hold my breath. */ | |
1149 | signal (SIGHUP, SIG_IGN); | |
1150 | #endif | |
1151 | } | |
1152 | #endif /* HAVE_PTYS */ | |
1153 | \f | |
1154 | #ifdef VMS | |
1155 | ||
1156 | /* Assigning an input channel is done at the start of Emacs execution. | |
1157 | This is called each time Emacs is resumed, also, but does nothing | |
1158 | because input_chain is no longer zero. */ | |
1159 | ||
1160 | init_vms_input () | |
1161 | { | |
1162 | int status; | |
1163 | ||
91bac16a | 1164 | if (input_fd == 0) |
86a5659e | 1165 | { |
91bac16a | 1166 | status = SYS$ASSIGN (&input_dsc, &input_fd, 0, 0); |
86a5659e JB |
1167 | if (! (status & 1)) |
1168 | LIB$STOP (status); | |
1169 | } | |
1170 | } | |
1171 | ||
1172 | /* Deassigning the input channel is done before exiting. */ | |
1173 | ||
1174 | stop_vms_input () | |
1175 | { | |
91bac16a | 1176 | return SYS$DASSGN (input_fd); |
86a5659e JB |
1177 | } |
1178 | ||
1179 | short input_buffer; | |
1180 | ||
1181 | /* Request reading one character into the keyboard buffer. | |
1182 | This is done as soon as the buffer becomes empty. */ | |
1183 | ||
1184 | queue_kbd_input () | |
1185 | { | |
1186 | int status; | |
1187 | waiting_for_ast = 0; | |
1188 | stop_input = 0; | |
91bac16a | 1189 | status = SYS$QIO (0, input_fd, IO$_READVBLK, |
86a5659e JB |
1190 | &input_iosb, kbd_input_ast, 1, |
1191 | &input_buffer, 1, 0, terminator_mask, 0, 0); | |
1192 | } | |
1193 | ||
1194 | int input_count; | |
1195 | ||
1196 | /* Ast routine that is called when keyboard input comes in | |
1197 | in accord with the SYS$QIO above. */ | |
1198 | ||
1199 | kbd_input_ast () | |
1200 | { | |
1201 | register int c = -1; | |
1202 | int old_errno = errno; | |
ffd56f97 | 1203 | extern EMACS_TIME *input_available_clear_time; |
86a5659e JB |
1204 | |
1205 | if (waiting_for_ast) | |
1206 | SYS$SETEF (input_ef); | |
1207 | waiting_for_ast = 0; | |
1208 | input_count++; | |
1209 | #ifdef ASTDEBUG | |
1210 | if (input_count == 25) | |
1211 | exit (1); | |
1212 | printf ("Ast # %d,", input_count); | |
1213 | printf (" iosb = %x, %x, %x, %x", | |
1214 | input_iosb.offset, input_iosb.status, input_iosb.termlen, | |
1215 | input_iosb.term); | |
1216 | #endif | |
1217 | if (input_iosb.offset) | |
1218 | { | |
1219 | c = input_buffer; | |
1220 | #ifdef ASTDEBUG | |
1221 | printf (", char = 0%o", c); | |
1222 | #endif | |
1223 | } | |
1224 | #ifdef ASTDEBUG | |
1225 | printf ("\n"); | |
1226 | fflush (stdout); | |
1227 | sleep (1); | |
1228 | #endif | |
1229 | if (! stop_input) | |
1230 | queue_kbd_input (); | |
1231 | if (c >= 0) | |
1232 | { | |
1233 | struct input_event e; | |
1234 | e.kind = ascii_keystroke; | |
1235 | XSET (buf[i].code, Lisp_Int, cbuf[i]); | |
0137dbf7 | 1236 | e.frame = selected_frame; |
86a5659e JB |
1237 | kbd_buffer_store_event (&e); |
1238 | } | |
1239 | ||
ffd56f97 JB |
1240 | if (input_available_clear_time) |
1241 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
86a5659e JB |
1242 | errno = old_errno; |
1243 | } | |
1244 | ||
1245 | /* Wait until there is something in kbd_buffer. */ | |
1246 | ||
1247 | wait_for_kbd_input () | |
1248 | { | |
1249 | extern int have_process_input, process_exited; | |
1250 | ||
1251 | /* If already something, avoid doing system calls. */ | |
1252 | if (detect_input_pending ()) | |
1253 | { | |
1254 | return; | |
1255 | } | |
1256 | /* Clear a flag, and tell ast routine above to set it. */ | |
1257 | SYS$CLREF (input_ef); | |
1258 | waiting_for_ast = 1; | |
1259 | /* Check for timing error: ast happened while we were doing that. */ | |
1260 | if (!detect_input_pending ()) | |
1261 | { | |
1262 | /* No timing error: wait for flag to be set. */ | |
1263 | set_waiting_for_input (0); | |
1264 | SYS$WFLOR (input_ef, input_eflist); | |
1265 | clear_waiting_for_input (0); | |
1266 | if (!detect_input_pending ()) | |
1267 | /* Check for subprocess input availability */ | |
1268 | { | |
1269 | int dsp = have_process_input || process_exited; | |
1270 | ||
1271 | SYS$CLREF (process_ef); | |
1272 | if (have_process_input) | |
1273 | process_command_input (); | |
1274 | if (process_exited) | |
1275 | process_exit (); | |
1276 | if (dsp) | |
1277 | { | |
1278 | update_mode_lines++; | |
1279 | redisplay_preserve_echo_area (); | |
1280 | } | |
1281 | } | |
1282 | } | |
1283 | waiting_for_ast = 0; | |
1284 | } | |
1285 | ||
1286 | /* Get rid of any pending QIO, when we are about to suspend | |
1287 | or when we want to throw away pending input. | |
1288 | We wait for a positive sign that the AST routine has run | |
1289 | and therefore there is no I/O request queued when we return. | |
1290 | SYS$SETAST is used to avoid a timing error. */ | |
1291 | ||
1292 | end_kbd_input () | |
1293 | { | |
1294 | #ifdef ASTDEBUG | |
1295 | printf ("At end_kbd_input.\n"); | |
1296 | fflush (stdout); | |
1297 | sleep (1); | |
1298 | #endif | |
1299 | if (LIB$AST_IN_PROG ()) /* Don't wait if suspending from kbd_buffer_store_event! */ | |
1300 | { | |
91bac16a | 1301 | SYS$CANCEL (input_fd); |
86a5659e JB |
1302 | return; |
1303 | } | |
1304 | ||
1305 | SYS$SETAST (0); | |
1306 | /* Clear a flag, and tell ast routine above to set it. */ | |
1307 | SYS$CLREF (input_ef); | |
1308 | waiting_for_ast = 1; | |
1309 | stop_input = 1; | |
91bac16a | 1310 | SYS$CANCEL (input_fd); |
86a5659e JB |
1311 | SYS$SETAST (1); |
1312 | SYS$WAITFR (input_ef); | |
1313 | waiting_for_ast = 0; | |
1314 | } | |
1315 | ||
1316 | /* Wait for either input available or time interval expiry. */ | |
1317 | ||
1318 | input_wait_timeout (timeval) | |
1319 | int timeval; /* Time to wait, in seconds */ | |
1320 | { | |
1321 | int time [2]; | |
1322 | static int zero = 0; | |
1323 | static int large = -10000000; | |
1324 | ||
1325 | LIB$EMUL (&timeval, &large, &zero, time); /* Convert to VMS format */ | |
1326 | ||
1327 | /* If already something, avoid doing system calls. */ | |
1328 | if (detect_input_pending ()) | |
1329 | { | |
1330 | return; | |
1331 | } | |
1332 | /* Clear a flag, and tell ast routine above to set it. */ | |
1333 | SYS$CLREF (input_ef); | |
1334 | waiting_for_ast = 1; | |
1335 | /* Check for timing error: ast happened while we were doing that. */ | |
1336 | if (!detect_input_pending ()) | |
1337 | { | |
1338 | /* No timing error: wait for flag to be set. */ | |
1339 | SYS$CANTIM (1, 0); | |
1340 | if (SYS$SETIMR (timer_ef, time, 0, 1) & 1) /* Set timer */ | |
1341 | SYS$WFLOR (timer_ef, timer_eflist); /* Wait for timer expiry or input */ | |
1342 | } | |
1343 | waiting_for_ast = 0; | |
1344 | } | |
1345 | ||
1346 | /* The standard `sleep' routine works some other way | |
1347 | and it stops working if you have ever quit out of it. | |
1348 | This one continues to work. */ | |
1349 | ||
1350 | sys_sleep (timeval) | |
1351 | int timeval; | |
1352 | { | |
1353 | int time [2]; | |
1354 | static int zero = 0; | |
1355 | static int large = -10000000; | |
1356 | ||
1357 | LIB$EMUL (&timeval, &large, &zero, time); /* Convert to VMS format */ | |
1358 | ||
1359 | SYS$CANTIM (1, 0); | |
1360 | if (SYS$SETIMR (timer_ef, time, 0, 1) & 1) /* Set timer */ | |
1361 | SYS$WAITFR (timer_ef); /* Wait for timer expiry only */ | |
1362 | } | |
1363 | ||
1364 | init_sigio () | |
1365 | { | |
1366 | request_sigio (); | |
1367 | } | |
1368 | ||
1369 | reset_sigio () | |
1370 | { | |
1371 | unrequest_sigio (); | |
1372 | } | |
1373 | ||
1374 | request_sigio () | |
1375 | { | |
1376 | croak ("request sigio"); | |
1377 | } | |
1378 | ||
1379 | unrequest_sigio () | |
1380 | { | |
1381 | croak ("unrequest sigio"); | |
1382 | } | |
1383 | ||
1384 | #endif /* VMS */ | |
1385 | \f | |
1386 | /* Note that VMS compiler won't accept defined (CANNOT_DUMP). */ | |
1387 | #ifndef CANNOT_DUMP | |
1388 | #define NEED_STARTS | |
1389 | #endif | |
1390 | ||
1391 | #ifndef SYSTEM_MALLOC | |
1392 | #ifndef NEED_STARTS | |
1393 | #define NEED_STARTS | |
1394 | #endif | |
1395 | #endif | |
1396 | ||
1397 | #ifdef NEED_STARTS | |
1398 | /* Some systems that cannot dump also cannot implement these. */ | |
1399 | ||
1400 | /* | |
1401 | * Return the address of the start of the text segment prior to | |
1402 | * doing an unexec. After unexec the return value is undefined. | |
1403 | * See crt0.c for further explanation and _start. | |
1404 | * | |
1405 | */ | |
1406 | ||
1407 | #ifndef CANNOT_UNEXEC | |
1408 | char * | |
1409 | start_of_text () | |
1410 | { | |
1411 | #ifdef TEXT_START | |
1412 | return ((char *) TEXT_START); | |
1413 | #else | |
1414 | #ifdef GOULD | |
1415 | extern csrt (); | |
1416 | return ((char *) csrt); | |
1417 | #else /* not GOULD */ | |
1418 | extern int _start (); | |
1419 | return ((char *) _start); | |
1420 | #endif /* GOULD */ | |
1421 | #endif /* TEXT_START */ | |
1422 | } | |
1423 | #endif /* not CANNOT_UNEXEC */ | |
1424 | ||
1425 | /* | |
1426 | * Return the address of the start of the data segment prior to | |
1427 | * doing an unexec. After unexec the return value is undefined. | |
1428 | * See crt0.c for further information and definition of data_start. | |
1429 | * | |
1430 | * Apparently, on BSD systems this is etext at startup. On | |
1431 | * USG systems (swapping) this is highly mmu dependent and | |
1432 | * is also dependent on whether or not the program is running | |
1433 | * with shared text. Generally there is a (possibly large) | |
1434 | * gap between end of text and start of data with shared text. | |
1435 | * | |
1436 | * On Uniplus+ systems with shared text, data starts at a | |
1437 | * fixed address. Each port (from a given oem) is generally | |
1438 | * different, and the specific value of the start of data can | |
1439 | * be obtained via the UniPlus+ specific "uvar" system call, | |
1440 | * however the method outlined in crt0.c seems to be more portable. | |
1441 | * | |
1442 | * Probably what will have to happen when a USG unexec is available, | |
1443 | * at least on UniPlus, is temacs will have to be made unshared so | |
1444 | * that text and data are contiguous. Then once loadup is complete, | |
1445 | * unexec will produce a shared executable where the data can be | |
1446 | * at the normal shared text boundry and the startofdata variable | |
1447 | * will be patched by unexec to the correct value. | |
1448 | * | |
1449 | */ | |
1450 | ||
1451 | char * | |
1452 | start_of_data () | |
1453 | { | |
1454 | #ifdef DATA_START | |
1455 | return ((char *) DATA_START); | |
1456 | #else | |
1457 | extern int data_start; | |
1458 | return ((char *) &data_start); | |
1459 | #endif | |
1460 | } | |
1461 | #endif /* NEED_STARTS (not CANNOT_DUMP or not SYSTEM_MALLOC) */ | |
1462 | ||
1463 | #ifndef CANNOT_DUMP | |
1464 | /* Some systems that cannot dump also cannot implement these. */ | |
1465 | ||
1466 | /* | |
1467 | * Return the address of the end of the text segment prior to | |
1468 | * doing an unexec. After unexec the return value is undefined. | |
1469 | */ | |
1470 | ||
1471 | char * | |
1472 | end_of_text () | |
1473 | { | |
1474 | #ifdef TEXT_END | |
1475 | return ((char *) TEXT_END); | |
1476 | #else | |
1477 | extern int etext; | |
1478 | return ((char *) &etext); | |
1479 | #endif | |
1480 | } | |
1481 | ||
1482 | /* | |
1483 | * Return the address of the end of the data segment prior to | |
1484 | * doing an unexec. After unexec the return value is undefined. | |
1485 | */ | |
1486 | ||
1487 | char * | |
1488 | end_of_data () | |
1489 | { | |
1490 | #ifdef DATA_END | |
1491 | return ((char *) DATA_END); | |
1492 | #else | |
1493 | extern int edata; | |
1494 | return ((char *) &edata); | |
1495 | #endif | |
1496 | } | |
1497 | ||
1498 | #endif /* not CANNOT_DUMP */ | |
1499 | \f | |
1500 | /* Get_system_name returns as its value | |
1501 | a string for the Lisp function system-name to return. */ | |
1502 | ||
1503 | #ifdef BSD4_1 | |
1504 | #include <whoami.h> | |
1505 | #endif | |
1506 | ||
1507 | #ifdef USG | |
1508 | /* Can't have this within the function since `static' is #defined to nothing */ | |
1509 | static struct utsname get_system_name_name; | |
1510 | #endif | |
1511 | ||
1512 | char * | |
1513 | get_system_name () | |
1514 | { | |
1515 | #ifdef USG | |
1516 | uname (&get_system_name_name); | |
1517 | return (get_system_name_name.nodename); | |
1518 | #else /* Not USG */ | |
1519 | #ifdef BSD4_1 | |
1520 | return sysname; | |
1521 | #else /* not USG, not 4.1 */ | |
1522 | static char system_name_saved[32]; | |
1523 | #ifdef VMS | |
1524 | char *sp; | |
1525 | if ((sp = egetenv ("SYS$NODE")) == 0) | |
1526 | sp = "vax-vms"; | |
1527 | else | |
1528 | { | |
1529 | char *end; | |
1530 | ||
1531 | if ((end = index (sp, ':')) != 0) | |
1532 | *end = '\0'; | |
1533 | } | |
1534 | strcpy (system_name_saved, sp); | |
1535 | #else /* not VMS */ | |
1536 | gethostname (system_name_saved, sizeof (system_name_saved)); | |
1537 | #endif /* not VMS */ | |
1538 | return system_name_saved; | |
1539 | #endif /* not USG, not 4.1 */ | |
1540 | #endif /* not USG */ | |
1541 | } | |
1542 | \f | |
1543 | #ifndef VMS | |
1544 | #ifndef HAVE_SELECT | |
1545 | ||
1546 | #ifdef HAVE_X_WINDOWS | |
1547 | /* Cause explanatory error message at compile time, | |
1548 | since the select emulation is not good enough for X. */ | |
1549 | int *x = &x_windows_lose_if_no_select_system_call; | |
1550 | #endif | |
1551 | ||
1552 | /* Emulate as much as select as is possible under 4.1 and needed by Gnu Emacs | |
1553 | * Only checks read descriptors. | |
1554 | */ | |
1555 | /* How long to wait between checking fds in select */ | |
1556 | #define SELECT_PAUSE 1 | |
1557 | int select_alarmed; | |
1558 | ||
1559 | /* For longjmp'ing back to read_input_waiting. */ | |
1560 | ||
1561 | jmp_buf read_alarm_throw; | |
1562 | ||
1563 | /* Nonzero if the alarm signal should throw back to read_input_waiting. | |
1564 | The read_socket_hook function sets this to 1 while it is waiting. */ | |
1565 | ||
1566 | int read_alarm_should_throw; | |
1567 | ||
1568 | SIGTYPE | |
1569 | select_alarm () | |
1570 | { | |
1571 | select_alarmed = 1; | |
1572 | #ifdef BSD4_1 | |
1573 | sigrelse (SIGALRM); | |
1574 | #else /* not BSD4_1 */ | |
1575 | signal (SIGALRM, SIG_IGN); | |
1576 | #endif /* not BSD4_1 */ | |
1577 | if (read_alarm_should_throw) | |
1578 | longjmp (read_alarm_throw, 1); | |
1579 | } | |
1580 | ||
1581 | /* Only rfds are checked. */ | |
1582 | int | |
1583 | select (nfds, rfds, wfds, efds, timeout) | |
1584 | int nfds; | |
1585 | int *rfds, *wfds, *efds, *timeout; | |
1586 | { | |
1587 | int ravail = 0, orfds = 0, old_alarm; | |
1588 | int timeoutval = timeout ? *timeout : 100000; | |
1589 | int *local_timeout = &timeoutval; | |
1590 | extern int proc_buffered_char[]; | |
1591 | #ifndef subprocesses | |
1592 | int process_tick = 0, update_tick = 0; | |
1593 | #else | |
1594 | extern int process_tick, update_tick; | |
1595 | #endif | |
1596 | SIGTYPE (*old_trap) (); | |
1597 | unsigned char buf; | |
1598 | ||
1599 | if (rfds) | |
1600 | { | |
1601 | orfds = *rfds; | |
1602 | *rfds = 0; | |
1603 | } | |
1604 | if (wfds) | |
1605 | *wfds = 0; | |
1606 | if (efds) | |
1607 | *efds = 0; | |
1608 | ||
1609 | /* If we are looking only for the terminal, with no timeout, | |
1610 | just read it and wait -- that's more efficient. */ | |
1611 | if (orfds == 1 && *local_timeout == 100000 && process_tick == update_tick) | |
1612 | { | |
1613 | if (! detect_input_pending ()) | |
1614 | read_input_waiting (); | |
1615 | *rfds = 1; | |
1616 | return 1; | |
1617 | } | |
1618 | ||
1619 | /* Once a second, till the timer expires, check all the flagged read | |
1620 | * descriptors to see if any input is available. If there is some then | |
1621 | * set the corresponding bit in the return copy of rfds. | |
1622 | */ | |
1623 | while (1) | |
1624 | { | |
1625 | register int to_check, bit, fd; | |
1626 | ||
1627 | if (rfds) | |
1628 | { | |
1629 | for (to_check = nfds, bit = 1, fd = 0; --to_check >= 0; bit <<= 1, fd++) | |
1630 | { | |
1631 | if (orfds & bit) | |
1632 | { | |
1633 | int avail = 0, status = 0; | |
1634 | ||
1635 | if (bit == 1) | |
1636 | avail = detect_input_pending (); /* Special keyboard handler */ | |
1637 | else | |
1638 | { | |
1639 | #ifdef FIONREAD | |
1640 | status = ioctl (fd, FIONREAD, &avail); | |
1641 | #else /* no FIONREAD */ | |
1642 | /* Hoping it will return -1 if nothing available | |
1643 | or 0 if all 0 chars requested are read. */ | |
1644 | if (proc_buffered_char[fd] >= 0) | |
1645 | avail = 1; | |
1646 | else | |
1647 | { | |
1648 | avail = read (fd, &buf, 1); | |
1649 | if (avail > 0) | |
1650 | proc_buffered_char[fd] = buf; | |
1651 | } | |
1652 | #endif /* no FIONREAD */ | |
1653 | } | |
1654 | if (status >= 0 && avail > 0) | |
1655 | { | |
1656 | (*rfds) |= bit; | |
1657 | ravail++; | |
1658 | } | |
1659 | } | |
1660 | } | |
1661 | } | |
1662 | if (*local_timeout == 0 || ravail != 0 || process_tick != update_tick) | |
1663 | break; | |
1664 | old_alarm = alarm (0); | |
1665 | old_trap = (int (*)()) signal (SIGALRM, select_alarm); | |
1666 | select_alarmed = 0; | |
1667 | alarm (SELECT_PAUSE); | |
1668 | /* Wait for a SIGALRM (or maybe a SIGTINT) */ | |
1669 | while (select_alarmed == 0 && *local_timeout != 0 | |
1670 | && process_tick == update_tick) | |
1671 | { | |
1672 | /* If we are interested in terminal input, | |
1673 | wait by reading the terminal. | |
1674 | That makes instant wakeup for terminal input at least. */ | |
1675 | if (orfds & 1) | |
1676 | { | |
1677 | read_input_waiting (); | |
1678 | if (detect_input_pending ()) | |
1679 | select_alarmed = 1; | |
1680 | } | |
1681 | else | |
1682 | pause (); | |
1683 | } | |
1684 | (*local_timeout) -= SELECT_PAUSE; | |
1685 | /* Reset the old alarm if there was one */ | |
1686 | alarm (0); | |
1687 | signal (SIGALRM, old_trap); | |
1688 | if (old_alarm != 0) | |
1689 | { | |
1690 | /* Reset or forge an interrupt for the original handler. */ | |
1691 | old_alarm -= SELECT_PAUSE; | |
1692 | if (old_alarm <= 0) | |
1693 | kill (getpid (), SIGALRM); /* Fake an alarm with the orig' handler */ | |
1694 | else | |
1695 | alarm (old_alarm); | |
1696 | } | |
1697 | if (*local_timeout == 0) /* Stop on timer being cleared */ | |
1698 | break; | |
1699 | } | |
1700 | return ravail; | |
1701 | } | |
1702 | ||
1703 | /* Read keyboard input into the standard buffer, | |
1704 | waiting for at least one character. */ | |
1705 | ||
1706 | /* Make all keyboard buffers much bigger when using X windows. */ | |
1707 | #ifdef HAVE_X_WINDOWS | |
1708 | #define BUFFER_SIZE_FACTOR 16 | |
1709 | #else | |
1710 | #define BUFFER_SIZE_FACTOR 1 | |
1711 | #endif | |
1712 | ||
1713 | read_input_waiting () | |
1714 | { | |
1715 | char buf[256 * BUFFER_SIZE_FACTOR]; | |
1716 | struct input_event e; | |
1717 | int nread; | |
1718 | ||
1719 | if (read_socket_hook) | |
1720 | { | |
1721 | read_alarm_should_throw = 0; | |
1722 | if (! setjmp (read_alarm_throw)) | |
1723 | nread = (*read_socket_hook) (0, buf, 256 * BUFFER_SIZE_FACTOR, 1, 0); | |
1724 | else | |
1725 | nread = -1; | |
1726 | } | |
1727 | else | |
1728 | nread = read (fileno (stdin), buf, 1); | |
1729 | ||
1730 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
1731 | e.kind = ascii_keystroke; | |
0137dbf7 | 1732 | e.frame = selected_frame; |
86a5659e JB |
1733 | for (i = 0; i < nread; i++) |
1734 | { | |
1735 | XSET (e.code, Lisp_Int, buf[i]); | |
1736 | kbd_buffer_store_event (&e); | |
1737 | /* Don't look at input that follows a C-g too closely. | |
1738 | This reduces lossage due to autorepeat on C-g. */ | |
1739 | if (buf[i] == Ctl ('G')) | |
1740 | break; | |
1741 | } | |
1742 | } | |
1743 | ||
1744 | #endif /* not HAVE_SELECT */ | |
1745 | #endif /* not VMS */ | |
1746 | \f | |
1747 | #ifdef BSD4_1 | |
1748 | /* VARARGS */ | |
1749 | setpriority () | |
1750 | { | |
1751 | return 0; | |
1752 | } | |
1753 | ||
1754 | /* | |
1755 | * Partially emulate 4.2 open call. | |
1756 | * open is defined as this in 4.1. | |
1757 | * | |
1758 | * - added by Michael Bloom @ Citicorp/TTI | |
1759 | * | |
1760 | */ | |
1761 | ||
1762 | int | |
1763 | sys_open (path, oflag, mode) | |
1764 | char *path; | |
1765 | int oflag, mode; | |
1766 | { | |
1767 | if (oflag & O_CREAT) | |
1768 | return creat (path, mode); | |
1769 | else | |
1770 | return open (path, oflag); | |
1771 | } | |
1772 | ||
1773 | init_sigio () | |
1774 | { | |
1775 | if (noninteractive) | |
1776 | return; | |
1777 | lmode = LINTRUP | lmode; | |
1778 | ioctl (0, TIOCLSET, &lmode); | |
1779 | } | |
1780 | ||
1781 | reset_sigio () | |
1782 | { | |
1783 | if (noninteractive) | |
1784 | return; | |
1785 | lmode = ~LINTRUP & lmode; | |
1786 | ioctl (0, TIOCLSET, &lmode); | |
1787 | } | |
1788 | ||
1789 | request_sigio () | |
1790 | { | |
1791 | sigrelse (SIGTINT); | |
1792 | ||
1793 | interrupts_deferred = 0; | |
1794 | } | |
1795 | ||
1796 | unrequest_sigio () | |
1797 | { | |
1798 | sighold (SIGTINT); | |
1799 | ||
1800 | interrupts_deferred = 1; | |
1801 | } | |
1802 | ||
1803 | /* still inside #ifdef BSD4_1 */ | |
1804 | #ifdef subprocesses | |
1805 | ||
1806 | int sigheld; /* Mask of held signals */ | |
1807 | ||
1808 | sigholdx (signum) | |
1809 | int signum; | |
1810 | { | |
1811 | sigheld |= sigbit (signum); | |
1812 | sighold (signum); | |
1813 | } | |
1814 | ||
1815 | sigisheld (signum) | |
1816 | int signum; | |
1817 | { | |
1818 | sigheld |= sigbit (signum); | |
1819 | } | |
1820 | ||
1821 | sigunhold (signum) | |
1822 | int signum; | |
1823 | { | |
1824 | sigheld &= ~sigbit (signum); | |
1825 | sigrelse (signum); | |
1826 | } | |
1827 | ||
1828 | sigfree () /* Free all held signals */ | |
1829 | { | |
1830 | int i; | |
1831 | for (i = 0; i < NSIG; i++) | |
1832 | if (sigheld & sigbit (i)) | |
1833 | sigrelse (i); | |
1834 | sigheld = 0; | |
1835 | } | |
1836 | ||
1837 | sigbit (i) | |
1838 | { | |
1839 | return 1 << (i - 1); | |
1840 | } | |
1841 | #endif /* subprocesses */ | |
1842 | #endif /* BSD4_1 */ | |
1843 | \f | |
1844 | /* POSIX signals support - DJB */ | |
1845 | /* Anyone with POSIX signals should have ANSI C declarations */ | |
1846 | ||
1847 | #ifdef POSIX_SIGNALS | |
1848 | ||
1849 | sigset_t old_mask, empty_mask, full_mask, temp_mask; | |
1850 | static struct sigaction new_action, old_action; | |
1851 | ||
1852 | init_signals () | |
1853 | { | |
1854 | #ifdef POSIX_SIGNALS | |
1855 | sigemptyset (&signal_empty_mask); | |
1856 | sigfillset (&signal_full_mask); | |
1857 | #endif | |
1858 | } | |
1859 | ||
1860 | int (*signal_handler_t) (); | |
1861 | ||
1862 | signal_handler_t | |
1863 | sys_signal (int signal_number, signal_handler_t action) | |
1864 | { | |
1865 | #ifdef DGUX | |
1866 | /* This gets us restartable system calls for efficiency. | |
1867 | The "else" code will works as well. */ | |
1868 | return (berk_signal (signal_number, action)); | |
1869 | #else | |
1870 | sigemptyset (&new_action.sa_mask); | |
1871 | new_action.sa_handler = action; | |
1872 | new_action.sa_flags = NULL; | |
d32b2f3c | 1873 | sigaction (signal_number, &new_action, &old_action); |
86a5659e JB |
1874 | return (old_action.sa_handler); |
1875 | #endif /* DGUX */ | |
1876 | } | |
1877 | ||
e065a56e JB |
1878 | #ifndef __GNUC__ |
1879 | /* If we're compiling with GCC, we don't need this function, since it | |
1880 | can be written as a macro. */ | |
1881 | sigset_t | |
1882 | sys_sigmask (int sig) | |
1883 | { | |
1884 | sigset_t mask; | |
1885 | sigemptyset (&mask); | |
1886 | sigaddset (&mask, sig); | |
1887 | return mask; | |
1888 | } | |
1889 | #endif | |
1890 | ||
86a5659e JB |
1891 | int |
1892 | sys_sigpause (sigset_t new_mask) | |
1893 | { | |
1894 | /* pause emulating berk sigpause... */ | |
1895 | sigsuspend (&new_mask); | |
1896 | return (EINTR); | |
1897 | } | |
1898 | ||
1899 | /* I'd like to have these guys return pointers to the mask storage in here, | |
1900 | but there'd be trouble if the code was saving multiple masks. I'll be | |
1901 | safe and pass the structure. It normally won't be more than 2 bytes | |
1902 | anyhow. - DJB */ | |
1903 | ||
1904 | sigset_t | |
1905 | sys_sigblock (sigset_t new_mask) | |
1906 | { | |
1907 | sigset_t old_mask; | |
1908 | sigprocmask (SIG_BLOCK, &new_mask, &old_mask); | |
1909 | return (old_mask); | |
1910 | } | |
1911 | ||
1912 | sigset_t | |
1913 | sys_sigunblock (sigset_t new_mask) | |
1914 | { | |
1915 | sigset_t old_mask; | |
1916 | sigprocmask (SIG_UNBLOCK, &new_mask, &old_mask); | |
1917 | return (old_mask); | |
1918 | } | |
1919 | ||
1920 | sigset_t | |
1921 | sys_sigsetmask (sigset_t new_mask) | |
1922 | { | |
1923 | sigset_t old_mask; | |
1924 | sigprocmask (SIG_SETMASK, &new_mask, &old_mask); | |
1925 | return (old_mask); | |
1926 | } | |
1927 | ||
1928 | #endif /* POSIX_SIGNALS */ | |
1929 | \f | |
1930 | #ifndef BSTRING | |
1931 | ||
1932 | void | |
1933 | bzero (b, length) | |
1934 | register char *b; | |
1935 | register int length; | |
1936 | { | |
1937 | #ifdef VMS | |
1938 | short zero = 0; | |
1939 | long max_str = 65535; | |
1940 | ||
1941 | while (length > max_str) { | |
1942 | (void) LIB$MOVC5 (&zero, &zero, &zero, &max_str, b); | |
1943 | length -= max_str; | |
1944 | b += max_str; | |
1945 | } | |
1946 | max_str = length; | |
1947 | (void) LIB$MOVC5 (&zero, &zero, &zero, &max_str, b); | |
1948 | #else | |
1949 | while (length-- > 0) | |
1950 | *b++ = 0; | |
1951 | #endif /* not VMS */ | |
1952 | } | |
1953 | ||
1954 | /* Saying `void' requires a declaration, above, where bcopy is used | |
1955 | and that declaration causes pain for systems where bcopy is a macro. */ | |
1956 | bcopy (b1, b2, length) | |
1957 | register char *b1; | |
1958 | register char *b2; | |
1959 | register int length; | |
1960 | { | |
1961 | #ifdef VMS | |
1962 | long max_str = 65535; | |
1963 | ||
1964 | while (length > max_str) { | |
1965 | (void) LIB$MOVC3 (&max_str, b1, b2); | |
1966 | length -= max_str; | |
1967 | b1 += max_str; | |
1968 | b2 += max_str; | |
1969 | } | |
1970 | max_str = length; | |
1971 | (void) LIB$MOVC3 (&length, b1, b2); | |
1972 | #else | |
1973 | while (length-- > 0) | |
1974 | *b2++ = *b1++; | |
1975 | #endif /* not VMS */ | |
1976 | } | |
1977 | ||
1978 | int | |
1979 | bcmp (b1, b2, length) /* This could be a macro! */ | |
1980 | register char *b1; | |
1981 | register char *b2; | |
1982 | register int length; | |
1983 | { | |
1984 | #ifdef VMS | |
1985 | struct dsc$descriptor_s src1 = {length, DSC$K_DTYPE_T, DSC$K_CLASS_S, b1}; | |
1986 | struct dsc$descriptor_s src2 = {length, DSC$K_DTYPE_T, DSC$K_CLASS_S, b2}; | |
1987 | ||
1988 | return STR$COMPARE (&src1, &src2); | |
1989 | #else | |
1990 | while (length-- > 0) | |
1991 | if (*b1++ != *b2++) | |
1992 | return 1; | |
1993 | ||
1994 | return 0; | |
1995 | #endif /* not VMS */ | |
1996 | } | |
1997 | #endif /* not BSTRING */ | |
1998 | \f | |
1999 | #ifdef USG | |
2000 | /* | |
2001 | * The BSD random returns numbers in the range of | |
2002 | * 0 to 2e31 - 1. The USG rand returns numbers in the | |
2003 | * range of 0 to 2e15 - 1. This is probably not significant | |
2004 | * in this usage. | |
2005 | */ | |
2006 | ||
2007 | long | |
2008 | random () | |
2009 | { | |
2010 | /* Arrange to return a range centered on zero. */ | |
2011 | return (rand () << 15) + rand () - (1 << 29); | |
2012 | } | |
2013 | ||
2014 | srandom (arg) | |
2015 | int arg; | |
2016 | { | |
2017 | srand (arg); | |
2018 | } | |
2019 | ||
2020 | #endif /* USG */ | |
2021 | ||
2022 | #ifdef BSD4_1 | |
2023 | long random () | |
2024 | { | |
2025 | /* Arrange to return a range centered on zero. */ | |
2026 | return (rand () << 15) + rand () - (1 << 29); | |
2027 | } | |
2028 | ||
2029 | srandom (arg) | |
2030 | int arg; | |
2031 | { | |
2032 | srand (arg); | |
2033 | } | |
2034 | #endif /* BSD4_1 */ | |
2035 | \f | |
2036 | #ifdef WRONG_NAME_INSQUE | |
2037 | ||
2038 | insque (q,p) | |
2039 | caddr_t q,p; | |
2040 | { | |
2041 | _insque (q,p); | |
2042 | } | |
2043 | ||
2044 | #endif | |
2045 | \f | |
2046 | #ifdef VMS | |
2047 | ||
2048 | #ifdef getenv | |
2049 | /* If any place else asks for the TERM variable, | |
2050 | allow it to be overridden with the EMACS_TERM variable | |
2051 | before attempting to translate the logical name TERM. As a last | |
2052 | resort, ask for VAX C's special idea of the TERM variable. */ | |
2053 | #undef getenv | |
2054 | char * | |
2055 | sys_getenv (name) | |
2056 | char *name; | |
2057 | { | |
2058 | register char *val; | |
2059 | static char buf[256]; | |
2060 | static struct dsc$descriptor_s equiv | |
2061 | = {sizeof (buf), DSC$K_DTYPE_T, DSC$K_CLASS_S, buf}; | |
2062 | static struct dsc$descriptor_s d_name | |
2063 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
2064 | short eqlen; | |
2065 | ||
2066 | if (!strcmp (name, "TERM")) | |
2067 | { | |
2068 | val = (char *) getenv ("EMACS_TERM"); | |
2069 | if (val) | |
2070 | return val; | |
2071 | } | |
2072 | ||
2073 | d_name.dsc$w_length = strlen (name); | |
2074 | d_name.dsc$a_pointer = name; | |
2075 | if (lib$sys_trnlog (&d_name, &eqlen, &equiv) == 1) | |
2076 | { | |
2077 | char *str = (char *) xmalloc (eqlen + 1); | |
2078 | bcopy (buf, str, eqlen); | |
2079 | str[eqlen] = '\0'; | |
2080 | /* This is a storage leak, but a pain to fix. With luck, | |
2081 | no one will ever notice. */ | |
2082 | return str; | |
2083 | } | |
2084 | return (char *) getenv (name); | |
2085 | } | |
2086 | #endif /* getenv */ | |
2087 | ||
2088 | #ifdef abort | |
2089 | /* Since VMS doesn't believe in core dumps, the only way to debug this beast is | |
2090 | to force a call on the debugger from within the image. */ | |
2091 | #undef abort | |
2092 | sys_abort () | |
2093 | { | |
2094 | reset_sys_modes (); | |
2095 | LIB$SIGNAL (SS$_DEBUG); | |
2096 | } | |
2097 | #endif /* abort */ | |
2098 | #endif /* VMS */ | |
2099 | \f | |
2100 | #ifdef VMS | |
2101 | #ifdef LINK_CRTL_SHARE | |
2102 | #ifdef SHAREABLE_LIB_BUG | |
2103 | /* Variables declared noshare and initialized in shareable libraries | |
2104 | cannot be shared. The VMS linker incorrectly forces you to use a private | |
2105 | version which is uninitialized... If not for this "feature", we | |
2106 | could use the C library definition of sys_nerr and sys_errlist. */ | |
2107 | int sys_nerr = 35; | |
2108 | char *sys_errlist[] = | |
2109 | { | |
2110 | "error 0", | |
2111 | "not owner", | |
2112 | "no such file or directory", | |
2113 | "no such process", | |
2114 | "interrupted system call", | |
2115 | "i/o error", | |
2116 | "no such device or address", | |
2117 | "argument list too long", | |
2118 | "exec format error", | |
2119 | "bad file number", | |
2120 | "no child process", | |
2121 | "no more processes", | |
2122 | "not enough memory", | |
2123 | "permission denied", | |
2124 | "bad address", | |
2125 | "block device required", | |
2126 | "mount devices busy", | |
2127 | "file exists", | |
2128 | "cross-device link", | |
2129 | "no such device", | |
2130 | "not a directory", | |
2131 | "is a directory", | |
2132 | "invalid argument", | |
2133 | "file table overflow", | |
2134 | "too many open files", | |
2135 | "not a typewriter", | |
2136 | "text file busy", | |
2137 | "file too big", | |
2138 | "no space left on device", | |
2139 | "illegal seek", | |
2140 | "read-only file system", | |
2141 | "too many links", | |
2142 | "broken pipe", | |
2143 | "math argument", | |
2144 | "result too large", | |
2145 | "I/O stream empty", | |
2146 | "vax/vms specific error code nontranslatable error" | |
2147 | }; | |
2148 | #endif /* SHAREABLE_LIB_BUG */ | |
2149 | #endif /* LINK_CRTL_SHARE */ | |
2150 | #endif /* VMS */ | |
2151 | \f | |
2152 | #ifdef INTERRUPTIBLE_OPEN | |
2153 | ||
2154 | int | |
2155 | /* VARARGS 2 */ | |
2156 | sys_open (path, oflag, mode) | |
2157 | char *path; | |
2158 | int oflag, mode; | |
2159 | { | |
2160 | register int rtnval; | |
2161 | ||
2162 | while ((rtnval = open (path, oflag, mode)) == -1 | |
2163 | && (errno == EINTR)); | |
2164 | return (rtnval); | |
2165 | } | |
2166 | ||
2167 | #endif /* INTERRUPTIBLE_OPEN */ | |
2168 | ||
2169 | #ifdef INTERRUPTIBLE_CLOSE | |
2170 | ||
2171 | sys_close (fd) | |
2172 | int fd; | |
2173 | { | |
2174 | register int rtnval; | |
2175 | ||
2176 | while ((rtnval = close (fd)) == -1 | |
2177 | && (errno == EINTR)); | |
2178 | return rtnval; | |
2179 | } | |
2180 | ||
2181 | #endif /* INTERRUPTIBLE_CLOSE */ | |
2182 | ||
2183 | #ifdef INTERRUPTIBLE_IO | |
2184 | ||
2185 | int | |
2186 | sys_read (fildes, buf, nbyte) | |
2187 | int fildes; | |
2188 | char *buf; | |
2189 | unsigned int nbyte; | |
2190 | { | |
2191 | register int rtnval; | |
2192 | ||
2193 | while ((rtnval = read (fildes, buf, nbyte)) == -1 | |
2194 | && (errno == EINTR)); | |
2195 | return (rtnval); | |
2196 | } | |
2197 | ||
2198 | int | |
2199 | sys_write (fildes, buf, nbyte) | |
2200 | int fildes; | |
2201 | char *buf; | |
2202 | unsigned int nbyte; | |
2203 | { | |
2204 | register int rtnval; | |
2205 | ||
2206 | while ((rtnval = write (fildes, buf, nbyte)) == -1 | |
2207 | && (errno == EINTR)); | |
2208 | return (rtnval); | |
2209 | } | |
2210 | ||
2211 | #endif /* INTERRUPTIBLE_IO */ | |
2212 | \f | |
2213 | #ifdef USG | |
2214 | /* | |
2215 | * All of the following are for USG. | |
2216 | * | |
2217 | * On USG systems the system calls are INTERRUPTIBLE by signals | |
2218 | * that the user program has elected to catch. Thus the system call | |
2219 | * must be retried in these cases. To handle this without massive | |
2220 | * changes in the source code, we remap the standard system call names | |
2221 | * to names for our own functions in sysdep.c that do the system call | |
2222 | * with retries. Actually, for portability reasons, it is good | |
2223 | * programming practice, as this example shows, to limit all actual | |
2224 | * system calls to a single occurance in the source. Sure, this | |
2225 | * adds an extra level of function call overhead but it is almost | |
2226 | * always negligible. Fred Fish, Unisoft Systems Inc. | |
2227 | */ | |
2228 | ||
2229 | char *sys_siglist[NSIG + 1] = | |
2230 | { | |
2231 | #ifdef AIX | |
2232 | /* AIX has changed the signals a bit */ | |
2233 | "bogus signal", /* 0 */ | |
2234 | "hangup", /* 1 SIGHUP */ | |
2235 | "interrupt", /* 2 SIGINT */ | |
2236 | "quit", /* 3 SIGQUIT */ | |
2237 | "illegal instruction", /* 4 SIGILL */ | |
2238 | "trace trap", /* 5 SIGTRAP */ | |
2239 | "IOT instruction", /* 6 SIGIOT */ | |
2240 | "crash likely", /* 7 SIGDANGER */ | |
2241 | "floating point exception", /* 8 SIGFPE */ | |
2242 | "kill", /* 9 SIGKILL */ | |
2243 | "bus error", /* 10 SIGBUS */ | |
2244 | "segmentation violation", /* 11 SIGSEGV */ | |
2245 | "bad argument to system call", /* 12 SIGSYS */ | |
2246 | "write on a pipe with no one to read it", /* 13 SIGPIPE */ | |
2247 | "alarm clock", /* 14 SIGALRM */ | |
2248 | "software termination signum", /* 15 SIGTERM */ | |
2249 | "user defined signal 1", /* 16 SIGUSR1 */ | |
2250 | "user defined signal 2", /* 17 SIGUSR2 */ | |
2251 | "death of a child", /* 18 SIGCLD */ | |
2252 | "power-fail restart", /* 19 SIGPWR */ | |
2253 | "bogus signal", /* 20 */ | |
2254 | "bogus signal", /* 21 */ | |
2255 | "bogus signal", /* 22 */ | |
2256 | "bogus signal", /* 23 */ | |
2257 | "bogus signal", /* 24 */ | |
2258 | "LAN I/O interrupt", /* 25 SIGAIO */ | |
2259 | "PTY I/O interrupt", /* 26 SIGPTY */ | |
2260 | "I/O intervention required", /* 27 SIGIOINT */ | |
2261 | "HFT grant", /* 28 SIGGRANT */ | |
2262 | "HFT retract", /* 29 SIGRETRACT */ | |
2263 | "HFT sound done", /* 30 SIGSOUND */ | |
2264 | "HFT input ready", /* 31 SIGMSG */ | |
2265 | #else /* not AIX */ | |
2266 | "bogus signal", /* 0 */ | |
2267 | "hangup", /* 1 SIGHUP */ | |
2268 | "interrupt", /* 2 SIGINT */ | |
2269 | "quit", /* 3 SIGQUIT */ | |
2270 | "illegal instruction", /* 4 SIGILL */ | |
2271 | "trace trap", /* 5 SIGTRAP */ | |
2272 | "IOT instruction", /* 6 SIGIOT */ | |
2273 | "EMT instruction", /* 7 SIGEMT */ | |
2274 | "floating point exception", /* 8 SIGFPE */ | |
2275 | "kill", /* 9 SIGKILL */ | |
2276 | "bus error", /* 10 SIGBUS */ | |
2277 | "segmentation violation", /* 11 SIGSEGV */ | |
2278 | "bad argument to system call", /* 12 SIGSYS */ | |
2279 | "write on a pipe with no one to read it", /* 13 SIGPIPE */ | |
2280 | "alarm clock", /* 14 SIGALRM */ | |
2281 | "software termination signum", /* 15 SIGTERM */ | |
2282 | "user defined signal 1", /* 16 SIGUSR1 */ | |
2283 | "user defined signal 2", /* 17 SIGUSR2 */ | |
2284 | "death of a child", /* 18 SIGCLD */ | |
2285 | "power-fail restart", /* 19 SIGPWR */ | |
2286 | #endif /* not AIX */ | |
2287 | 0 | |
2288 | }; | |
2289 | ||
2290 | /* | |
2291 | * Warning, this function may not duplicate 4.2 action properly | |
2292 | * under error conditions. | |
2293 | */ | |
2294 | ||
2295 | #ifndef MAXPATHLEN | |
2296 | /* In 4.1, param.h fails to define this. */ | |
2297 | #define MAXPATHLEN 1024 | |
2298 | #endif | |
2299 | ||
2300 | #ifndef HAVE_GETWD | |
2301 | ||
2302 | char * | |
2303 | getwd (pathname) | |
2304 | char *pathname; | |
2305 | { | |
2306 | char *npath, *spath; | |
2307 | extern char *getcwd (); | |
2308 | ||
2309 | spath = npath = getcwd ((char *) 0, MAXPATHLEN); | |
2310 | /* On Altos 3068, getcwd can return @hostname/dir, so discard | |
2311 | up to first slash. Should be harmless on other systems. */ | |
2312 | while (*npath && *npath != '/') | |
2313 | npath++; | |
2314 | strcpy (pathname, npath); | |
2315 | free (spath); /* getcwd uses malloc */ | |
2316 | return pathname; | |
2317 | } | |
2318 | ||
2319 | #endif /* HAVE_GETWD */ | |
2320 | ||
2321 | /* | |
2322 | * Emulate rename using unlink/link. Note that this is | |
2323 | * only partially correct. Also, doesn't enforce restriction | |
2324 | * that files be of same type (regular->regular, dir->dir, etc). | |
2325 | */ | |
2326 | ||
4746118a JB |
2327 | #ifndef HAVE_RENAME |
2328 | ||
86a5659e JB |
2329 | rename (from, to) |
2330 | char *from; | |
2331 | char *to; | |
2332 | { | |
2333 | if (access (from, 0) == 0) | |
2334 | { | |
2335 | unlink (to); | |
2336 | if (link (from, to) == 0) | |
2337 | if (unlink (from) == 0) | |
2338 | return (0); | |
2339 | } | |
2340 | return (-1); | |
2341 | } | |
2342 | ||
4746118a JB |
2343 | #endif |
2344 | ||
86a5659e JB |
2345 | /* Set priority value to PRIO. */ |
2346 | ||
4746118a | 2347 | int |
86a5659e JB |
2348 | setpriority (which, who, prio) |
2349 | int which, who, prio; | |
2350 | { | |
2351 | int nice (); | |
2352 | ||
2353 | nice (prio - nice (0)); | |
2354 | return (0); | |
2355 | } | |
2356 | ||
2357 | #ifndef HAVE_VFORK | |
2358 | ||
2359 | /* | |
2360 | * Substitute fork for vfork on USG flavors. | |
2361 | */ | |
2362 | ||
2363 | vfork () | |
2364 | { | |
2365 | return (fork ()); | |
2366 | } | |
2367 | ||
2368 | #endif /* not HAVE_VFORK */ | |
2369 | ||
2370 | #ifdef MISSING_UTIMES | |
2371 | ||
2372 | /* HPUX (among others) sets HAVE_TIMEVAL but does not implement utimes. */ | |
2373 | ||
2374 | utimes () | |
2375 | { | |
2376 | } | |
2377 | #endif | |
2378 | ||
2379 | #ifdef IRIS_UTIME | |
2380 | ||
2381 | /* The IRIS (3.5) has timevals, but uses sys V utime, and doesn't have the | |
2382 | utimbuf structure defined anywhere but in the man page. */ | |
2383 | ||
2384 | struct utimbuf | |
2385 | { | |
2386 | long actime; | |
2387 | long modtime; | |
2388 | }; | |
2389 | ||
2390 | utimes (name, tvp) | |
2391 | char *name; | |
2392 | struct timeval tvp[]; | |
2393 | { | |
2394 | struct utimbuf utb; | |
2395 | utb.actime = tvp[0].tv_sec; | |
2396 | utb.modtime = tvp[1].tv_sec; | |
2397 | utime (name, &utb); | |
2398 | } | |
2399 | #endif /* IRIS_UTIME */ | |
2400 | ||
2401 | ||
2402 | #ifdef HPUX | |
2403 | #ifndef HAVE_PERROR | |
2404 | ||
2405 | /* HPUX curses library references perror, but as far as we know | |
2406 | it won't be called. Anyway this definition will do for now. */ | |
2407 | ||
2408 | perror () | |
2409 | { | |
2410 | } | |
2411 | ||
2412 | #endif /* not HAVE_PERROR */ | |
2413 | #endif /* HPUX */ | |
2414 | ||
2415 | #ifndef HAVE_DUP2 | |
2416 | ||
2417 | /* | |
2418 | * Emulate BSD dup2. First close newd if it already exists. | |
2419 | * Then, attempt to dup oldd. If not successful, call dup2 recursively | |
2420 | * until we are, then close the unsuccessful ones. | |
2421 | */ | |
2422 | ||
2423 | dup2 (oldd, newd) | |
2424 | int oldd; | |
2425 | int newd; | |
2426 | { | |
2427 | register int fd, ret; | |
2428 | ||
2429 | sys_close (newd); | |
2430 | ||
2431 | #ifdef F_DUPFD | |
2432 | fd = fcntl (oldd, F_DUPFD, newd); | |
2433 | if (fd != newd) | |
2434 | error ("can't dup2 (%i,%i) : %s", oldd, newd, sys_errlist[errno]); | |
2435 | #else | |
2436 | fd = dup (old); | |
2437 | if (fd == -1) | |
2438 | return -1; | |
2439 | if (fd == new) | |
2440 | return new; | |
2441 | ret = dup2 (old,new); | |
2442 | sys_close (fd); | |
2443 | return ret; | |
2444 | #endif | |
2445 | } | |
2446 | ||
2447 | #endif /* not HAVE_DUP2 */ | |
2448 | ||
2449 | /* | |
2450 | * Gettimeofday. Simulate as much as possible. Only accurate | |
2451 | * to nearest second. Emacs doesn't use tzp so ignore it for now. | |
2452 | * Only needed when subprocesses are defined. | |
2453 | */ | |
2454 | ||
2455 | #ifdef subprocesses | |
2456 | #ifndef VMS | |
2457 | #ifndef HAVE_GETTIMEOFDAY | |
2458 | #ifdef HAVE_TIMEVAL | |
2459 | ||
2460 | /* ARGSUSED */ | |
2461 | gettimeofday (tp, tzp) | |
2462 | struct timeval *tp; | |
2463 | struct timezone *tzp; | |
2464 | { | |
2465 | extern long time (); | |
2466 | ||
2467 | tp->tv_sec = time ((long *)0); | |
2468 | tp->tv_usec = 0; | |
2469 | tzp->tz_minuteswest = -1; | |
2470 | } | |
2471 | ||
2472 | #endif | |
2473 | #endif | |
2474 | #endif | |
2475 | #endif /* subprocess && !HAVE_GETTIMEOFDAY && HAVE_TIMEVAL && !VMS */ | |
2476 | ||
2477 | /* | |
2478 | * This function will go away as soon as all the stubs fixed. (fnf) | |
2479 | */ | |
2480 | ||
2481 | croak (badfunc) | |
2482 | char *badfunc; | |
2483 | { | |
2484 | printf ("%s not yet implemented\r\n", badfunc); | |
2485 | reset_sys_modes (); | |
2486 | exit (1); | |
2487 | } | |
2488 | ||
2489 | #endif /* USG */ | |
2490 | \f | |
2491 | #ifdef DGUX | |
2492 | ||
2493 | char *sys_siglist[NSIG + 1] = | |
2494 | { | |
2495 | "null signal", /* 0 SIGNULL */ | |
2496 | "hangup", /* 1 SIGHUP */ | |
2497 | "interrupt", /* 2 SIGINT */ | |
2498 | "quit", /* 3 SIGQUIT */ | |
2499 | "illegal instruction", /* 4 SIGILL */ | |
2500 | "trace trap", /* 5 SIGTRAP */ | |
2501 | "abort termination", /* 6 SIGABRT */ | |
2502 | "SIGEMT", /* 7 SIGEMT */ | |
2503 | "floating point exception", /* 8 SIGFPE */ | |
2504 | "kill", /* 9 SIGKILL */ | |
2505 | "bus error", /* 10 SIGBUS */ | |
2506 | "segmentation violation", /* 11 SIGSEGV */ | |
2507 | "bad argument to system call", /* 12 SIGSYS */ | |
2508 | "write on a pipe with no reader", /* 13 SIGPIPE */ | |
2509 | "alarm clock", /* 14 SIGALRM */ | |
2510 | "software termination signal", /* 15 SIGTERM */ | |
2511 | "user defined signal 1", /* 16 SIGUSR1 */ | |
2512 | "user defined signal 2", /* 17 SIGUSR2 */ | |
2513 | "child stopped or terminated", /* 18 SIGCLD */ | |
2514 | "power-fail restart", /* 19 SIGPWR */ | |
2515 | "window size changed", /* 20 SIGWINCH */ | |
2516 | "undefined", /* 21 */ | |
2517 | "pollable event occured", /* 22 SIGPOLL */ | |
2518 | "sendable stop signal not from tty", /* 23 SIGSTOP */ | |
2519 | "stop signal from tty", /* 24 SIGSTP */ | |
2520 | "continue a stopped process", /* 25 SIGCONT */ | |
2521 | "attempted background tty read", /* 26 SIGTTIN */ | |
2522 | "attempted background tty write", /* 27 SIGTTOU */ | |
2523 | "undefined", /* 28 */ | |
2524 | "undefined", /* 29 */ | |
2525 | "undefined", /* 30 */ | |
2526 | "undefined", /* 31 */ | |
2527 | "undefined", /* 32 */ | |
2528 | "socket (TCP/IP) urgent data arrival", /* 33 SIGURG */ | |
2529 | "I/O is possible", /* 34 SIGIO */ | |
2530 | "exceeded cpu time limit", /* 35 SIGXCPU */ | |
2531 | "exceeded file size limit", /* 36 SIGXFSZ */ | |
2532 | "virtual time alarm", /* 37 SIGVTALRM */ | |
2533 | "profiling time alarm", /* 38 SIGPROF */ | |
2534 | "undefined", /* 39 */ | |
2535 | "file record locks revoked", /* 40 SIGLOST */ | |
2536 | "undefined", /* 41 */ | |
2537 | "undefined", /* 42 */ | |
2538 | "undefined", /* 43 */ | |
2539 | "undefined", /* 44 */ | |
2540 | "undefined", /* 45 */ | |
2541 | "undefined", /* 46 */ | |
2542 | "undefined", /* 47 */ | |
2543 | "undefined", /* 48 */ | |
2544 | "undefined", /* 49 */ | |
2545 | "undefined", /* 50 */ | |
2546 | "undefined", /* 51 */ | |
2547 | "undefined", /* 52 */ | |
2548 | "undefined", /* 53 */ | |
2549 | "undefined", /* 54 */ | |
2550 | "undefined", /* 55 */ | |
2551 | "undefined", /* 56 */ | |
2552 | "undefined", /* 57 */ | |
2553 | "undefined", /* 58 */ | |
2554 | "undefined", /* 59 */ | |
2555 | "undefined", /* 60 */ | |
2556 | "undefined", /* 61 */ | |
2557 | "undefined", /* 62 */ | |
2558 | "undefined", /* 63 */ | |
2559 | "notification message in mess. queue", /* 64 SIGDGNOTIFY */ | |
2560 | 0 | |
2561 | }; | |
2562 | ||
2563 | #endif /* DGUX */ | |
2564 | \f | |
2565 | /* Directory routines for systems that don't have them. */ | |
2566 | ||
2567 | #ifdef SYSV_SYSTEM_DIR | |
2568 | ||
2569 | #include <dirent.h> | |
2570 | ||
2571 | #ifndef AIX | |
2572 | int | |
2573 | closedir (dirp) | |
2574 | register DIR *dirp; /* stream from opendir */ | |
2575 | { | |
2576 | sys_close (dirp->dd_fd); | |
2577 | free ((char *) dirp->dd_buf); /* directory block defined in <dirent.h> */ | |
2578 | free ((char *) dirp); | |
2579 | } | |
2580 | #endif /* not AIX */ | |
2581 | #endif /* SYSV_SYSTEM_DIR */ | |
2582 | ||
2583 | #ifdef NONSYSTEM_DIR_LIBRARY | |
2584 | ||
2585 | DIR * | |
2586 | opendir (filename) | |
2587 | char *filename; /* name of directory */ | |
2588 | { | |
2589 | register DIR *dirp; /* -> malloc'ed storage */ | |
2590 | register int fd; /* file descriptor for read */ | |
2591 | struct stat sbuf; /* result of fstat */ | |
2592 | ||
2593 | fd = sys_open (filename, 0); | |
2594 | if (fd < 0) | |
2595 | return 0; | |
2596 | ||
2597 | if (fstat (fd, &sbuf) < 0 | |
2598 | || (sbuf.st_mode & S_IFMT) != S_IFDIR | |
2599 | || (dirp = (DIR *) malloc (sizeof (DIR))) == 0) | |
2600 | { | |
2601 | sys_close (fd); | |
2602 | return 0; /* bad luck today */ | |
2603 | } | |
2604 | ||
2605 | dirp->dd_fd = fd; | |
2606 | dirp->dd_loc = dirp->dd_size = 0; /* refill needed */ | |
2607 | ||
2608 | return dirp; | |
2609 | } | |
2610 | ||
2611 | void | |
2612 | closedir (dirp) | |
2613 | register DIR *dirp; /* stream from opendir */ | |
2614 | { | |
2615 | sys_close (dirp->dd_fd); | |
2616 | free ((char *) dirp); | |
2617 | } | |
2618 | ||
2619 | ||
2620 | #ifndef VMS | |
2621 | #define DIRSIZ 14 | |
2622 | struct olddir | |
2623 | { | |
2624 | ino_t od_ino; /* inode */ | |
2625 | char od_name[DIRSIZ]; /* filename */ | |
2626 | }; | |
2627 | #endif /* not VMS */ | |
2628 | ||
2629 | struct direct dir_static; /* simulated directory contents */ | |
2630 | ||
2631 | /* ARGUSED */ | |
2632 | struct direct * | |
2633 | readdir (dirp) | |
2634 | register DIR *dirp; /* stream from opendir */ | |
2635 | { | |
2636 | #ifndef VMS | |
2637 | register struct olddir *dp; /* -> directory data */ | |
2638 | #else /* VMS */ | |
2639 | register struct dir$_name *dp; /* -> directory data */ | |
2640 | register struct dir$_version *dv; /* -> version data */ | |
2641 | #endif /* VMS */ | |
2642 | ||
2643 | for (; ;) | |
2644 | { | |
2645 | if (dirp->dd_loc >= dirp->dd_size) | |
2646 | dirp->dd_loc = dirp->dd_size = 0; | |
2647 | ||
2648 | if (dirp->dd_size == 0 /* refill buffer */ | |
2649 | && (dirp->dd_size = sys_read (dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ)) <= 0) | |
2650 | return 0; | |
2651 | ||
2652 | #ifndef VMS | |
2653 | dp = (struct olddir *) &dirp->dd_buf[dirp->dd_loc]; | |
2654 | dirp->dd_loc += sizeof (struct olddir); | |
2655 | ||
2656 | if (dp->od_ino != 0) /* not deleted entry */ | |
2657 | { | |
2658 | dir_static.d_ino = dp->od_ino; | |
2659 | strncpy (dir_static.d_name, dp->od_name, DIRSIZ); | |
2660 | dir_static.d_name[DIRSIZ] = '\0'; | |
2661 | dir_static.d_namlen = strlen (dir_static.d_name); | |
2662 | dir_static.d_reclen = sizeof (struct direct) | |
2663 | - MAXNAMLEN + 3 | |
2664 | + dir_static.d_namlen - dir_static.d_namlen % 4; | |
2665 | return &dir_static; /* -> simulated structure */ | |
2666 | } | |
2667 | #else /* VMS */ | |
2668 | dp = (struct dir$_name *) dirp->dd_buf; | |
2669 | if (dirp->dd_loc == 0) | |
2670 | dirp->dd_loc = (dp->dir$b_namecount&1) ? dp->dir$b_namecount + 1 | |
2671 | : dp->dir$b_namecount; | |
2672 | dv = (struct dir$_version *)&dp->dir$t_name[dirp->dd_loc]; | |
2673 | dir_static.d_ino = dv->dir$w_fid_num; | |
2674 | dir_static.d_namlen = dp->dir$b_namecount; | |
2675 | dir_static.d_reclen = sizeof (struct direct) | |
2676 | - MAXNAMLEN + 3 | |
2677 | + dir_static.d_namlen - dir_static.d_namlen % 4; | |
2678 | strncpy (dir_static.d_name, dp->dir$t_name, dp->dir$b_namecount); | |
2679 | dir_static.d_name[dir_static.d_namlen] = '\0'; | |
2680 | dirp->dd_loc = dirp->dd_size; /* only one record at a time */ | |
2681 | return &dir_static; | |
2682 | #endif /* VMS */ | |
2683 | } | |
2684 | } | |
2685 | ||
2686 | #ifdef VMS | |
2687 | /* readdirver is just like readdir except it returns all versions of a file | |
2688 | as separate entries. */ | |
2689 | ||
2690 | /* ARGUSED */ | |
2691 | struct direct * | |
2692 | readdirver (dirp) | |
2693 | register DIR *dirp; /* stream from opendir */ | |
2694 | { | |
2695 | register struct dir$_name *dp; /* -> directory data */ | |
2696 | register struct dir$_version *dv; /* -> version data */ | |
2697 | ||
2698 | if (dirp->dd_loc >= dirp->dd_size - sizeof (struct dir$_name)) | |
2699 | dirp->dd_loc = dirp->dd_size = 0; | |
2700 | ||
2701 | if (dirp->dd_size == 0 /* refill buffer */ | |
2702 | && (dirp->dd_size = sys_read (dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ)) <= 0) | |
2703 | return 0; | |
2704 | ||
2705 | dp = (struct dir$_name *) dirp->dd_buf; | |
2706 | if (dirp->dd_loc == 0) | |
2707 | dirp->dd_loc = (dp->dir$b_namecount & 1) ? dp->dir$b_namecount + 1 | |
2708 | : dp->dir$b_namecount; | |
2709 | dv = (struct dir$_version *) &dp->dir$t_name[dirp->dd_loc]; | |
2710 | strncpy (dir_static.d_name, dp->dir$t_name, dp->dir$b_namecount); | |
2711 | sprintf (&dir_static.d_name[dp->dir$b_namecount], ";%d", dv->dir$w_version); | |
2712 | dir_static.d_namlen = strlen (dir_static.d_name); | |
2713 | dir_static.d_ino = dv->dir$w_fid_num; | |
2714 | dir_static.d_reclen = sizeof (struct direct) - MAXNAMLEN + 3 | |
2715 | + dir_static.d_namlen - dir_static.d_namlen % 4; | |
2716 | dirp->dd_loc = ((char *) (++dv) - dp->dir$t_name); | |
2717 | return &dir_static; | |
2718 | } | |
2719 | ||
2720 | #endif /* VMS */ | |
2721 | ||
2722 | #endif /* NONSYSTEM_DIR_LIBRARY */ | |
2723 | \f | |
2724 | /* Functions for VMS */ | |
2725 | #ifdef VMS | |
91bac16a | 2726 | #include "vms-pwd.h" |
86a5659e JB |
2727 | #include <acldef.h> |
2728 | #include <chpdef.h> | |
2729 | #include <jpidef.h> | |
2730 | ||
2731 | /* Return as a string the VMS error string pertaining to STATUS. | |
2732 | Reuses the same static buffer each time it is called. */ | |
2733 | ||
2734 | char * | |
2735 | vmserrstr (status) | |
2736 | int status; /* VMS status code */ | |
2737 | { | |
2738 | int bufadr[2]; | |
2739 | short len; | |
2740 | static char buf[257]; | |
2741 | ||
2742 | bufadr[0] = sizeof buf - 1; | |
2743 | bufadr[1] = (int) buf; | |
2744 | if (! (SYS$GETMSG (status, &len, bufadr, 0x1, 0) & 1)) | |
2745 | return "untranslatable VMS error status"; | |
2746 | buf[len] = '\0'; | |
2747 | return buf; | |
2748 | } | |
2749 | ||
2750 | #ifdef access | |
2751 | #undef access | |
2752 | ||
2753 | /* The following is necessary because 'access' emulation by VMS C (2.0) does | |
2754 | * not work correctly. (It also doesn't work well in version 2.3.) | |
2755 | */ | |
2756 | ||
2757 | #ifdef VMS4_4 | |
2758 | ||
2759 | #define DESCRIPTOR(name,string) struct dsc$descriptor_s name = \ | |
2760 | { strlen (string), DSC$K_DTYPE_T, DSC$K_CLASS_S, string } | |
2761 | ||
2762 | typedef union { | |
2763 | struct { | |
2764 | unsigned short s_buflen; | |
2765 | unsigned short s_code; | |
2766 | char *s_bufadr; | |
2767 | unsigned short *s_retlenadr; | |
2768 | } s; | |
2769 | int end; | |
2770 | } item; | |
2771 | #define buflen s.s_buflen | |
2772 | #define code s.s_code | |
2773 | #define bufadr s.s_bufadr | |
2774 | #define retlenadr s.s_retlenadr | |
2775 | ||
2776 | #define R_OK 4 /* test for read permission */ | |
2777 | #define W_OK 2 /* test for write permission */ | |
2778 | #define X_OK 1 /* test for execute (search) permission */ | |
2779 | #define F_OK 0 /* test for presence of file */ | |
2780 | ||
2781 | int | |
2782 | sys_access (path, mode) | |
2783 | char *path; | |
2784 | int mode; | |
2785 | { | |
2786 | static char *user = NULL; | |
2787 | char dir_fn[512]; | |
2788 | ||
2789 | /* translate possible directory spec into .DIR file name, so brain-dead | |
2790 | * access can treat the directory like a file. */ | |
2791 | if (directory_file_name (path, dir_fn)) | |
2792 | path = dir_fn; | |
2793 | ||
2794 | if (mode == F_OK) | |
2795 | return access (path, mode); | |
2796 | if (user == NULL && (user = (char *) getenv ("USER")) == NULL) | |
2797 | return -1; | |
2798 | { | |
2799 | int stat; | |
2800 | int flags; | |
2801 | int acces; | |
2802 | unsigned short int dummy; | |
2803 | item itemlst[3]; | |
2804 | static int constant = ACL$C_FILE; | |
2805 | DESCRIPTOR (path_desc, path); | |
2806 | DESCRIPTOR (user_desc, user); | |
2807 | ||
2808 | flags = 0; | |
2809 | acces = 0; | |
2810 | if ((mode & X_OK) && ((stat = access (path, mode)) < 0 || mode == X_OK)) | |
2811 | return stat; | |
2812 | if (mode & R_OK) | |
2813 | acces |= CHP$M_READ; | |
2814 | if (mode & W_OK) | |
2815 | acces |= CHP$M_WRITE; | |
2816 | itemlst[0].buflen = sizeof (int); | |
2817 | itemlst[0].code = CHP$_FLAGS; | |
2818 | itemlst[0].bufadr = (char *) &flags; | |
2819 | itemlst[0].retlenadr = &dummy; | |
2820 | itemlst[1].buflen = sizeof (int); | |
2821 | itemlst[1].code = CHP$_ACCESS; | |
2822 | itemlst[1].bufadr = (char *) &acces; | |
2823 | itemlst[1].retlenadr = &dummy; | |
2824 | itemlst[2].end = CHP$_END; | |
2825 | stat = SYS$CHECK_ACCESS (&constant, &path_desc, &user_desc, itemlst); | |
2826 | return stat == SS$_NORMAL ? 0 : -1; | |
2827 | } | |
2828 | } | |
2829 | ||
2830 | #else /* not VMS4_4 */ | |
2831 | ||
2832 | #include <prvdef.h> | |
2833 | #define ACE$M_WRITE 2 | |
2834 | #define ACE$C_KEYID 1 | |
2835 | ||
2836 | static unsigned short memid, grpid; | |
2837 | static unsigned int uic; | |
2838 | ||
2839 | /* Called from init_sys_modes, so it happens not very often | |
2840 | but at least each time Emacs is loaded. */ | |
2841 | sys_access_reinit () | |
2842 | { | |
2843 | uic = 0; | |
2844 | } | |
2845 | ||
2846 | int | |
2847 | sys_access (filename, type) | |
2848 | char * filename; | |
2849 | int type; | |
2850 | { | |
2851 | struct FAB fab; | |
2852 | struct XABPRO xab; | |
2853 | int status, size, i, typecode, acl_controlled; | |
2854 | unsigned int *aclptr, *aclend, aclbuf[60]; | |
2855 | union prvdef prvmask; | |
2856 | ||
2857 | /* Get UIC and GRP values for protection checking. */ | |
2858 | if (uic == 0) | |
2859 | { | |
2860 | status = LIB$GETJPI (&JPI$_UIC, 0, 0, &uic, 0, 0); | |
2861 | if (! (status & 1)) | |
2862 | return -1; | |
2863 | memid = uic & 0xFFFF; | |
2864 | grpid = uic >> 16; | |
2865 | } | |
2866 | ||
2867 | if (type != 2) /* not checking write access */ | |
2868 | return access (filename, type); | |
2869 | ||
2870 | /* Check write protection. */ | |
2871 | ||
2872 | #define CHECKPRIV(bit) (prvmask.bit) | |
2873 | #define WRITEABLE(field) (! ((xab.xab$w_pro >> field) & XAB$M_NOWRITE)) | |
2874 | ||
2875 | /* Find privilege bits */ | |
2876 | status = sys$setprv (0, 0, 0, prvmask); | |
2877 | if (! (status & 1)) | |
2878 | error ("Unable to find privileges: %s", vmserrstr (status)); | |
2879 | if (CHECKPRIV (PRV$V_BYPASS)) | |
2880 | return 0; /* BYPASS enabled */ | |
2881 | fab = cc$rms_fab; | |
2882 | fab.fab$b_fac = FAB$M_GET; | |
2883 | fab.fab$l_fna = filename; | |
2884 | fab.fab$b_fns = strlen (filename); | |
2885 | fab.fab$l_xab = &xab; | |
2886 | xab = cc$rms_xabpro; | |
2887 | xab.xab$l_aclbuf = aclbuf; | |
2888 | xab.xab$w_aclsiz = sizeof (aclbuf); | |
2889 | status = sys$open (&fab, 0, 0); | |
2890 | if (! (status & 1)) | |
2891 | return -1; | |
2892 | sys$close (&fab, 0, 0); | |
2893 | /* Check system access */ | |
2894 | if (CHECKPRIV (PRV$V_SYSPRV) && WRITEABLE (XAB$V_SYS)) | |
2895 | return 0; | |
2896 | /* Check ACL entries, if any */ | |
2897 | acl_controlled = 0; | |
2898 | if (xab.xab$w_acllen > 0) | |
2899 | { | |
2900 | aclptr = aclbuf; | |
2901 | aclend = &aclbuf[xab.xab$w_acllen / 4]; | |
2902 | while (*aclptr && aclptr < aclend) | |
2903 | { | |
2904 | size = (*aclptr & 0xff) / 4; | |
2905 | typecode = (*aclptr >> 8) & 0xff; | |
2906 | if (typecode == ACE$C_KEYID) | |
2907 | for (i = size - 1; i > 1; i--) | |
2908 | if (aclptr[i] == uic) | |
2909 | { | |
2910 | acl_controlled = 1; | |
2911 | if (aclptr[1] & ACE$M_WRITE) | |
2912 | return 0; /* Write access through ACL */ | |
2913 | } | |
2914 | aclptr = &aclptr[size]; | |
2915 | } | |
2916 | if (acl_controlled) /* ACL specified, prohibits write access */ | |
2917 | return -1; | |
2918 | } | |
2919 | /* No ACL entries specified, check normal protection */ | |
2920 | if (WRITEABLE (XAB$V_WLD)) /* World writeable */ | |
2921 | return 0; | |
2922 | if (WRITEABLE (XAB$V_GRP) && | |
2923 | (unsigned short) (xab.xab$l_uic >> 16) == grpid) | |
2924 | return 0; /* Group writeable */ | |
2925 | if (WRITEABLE (XAB$V_OWN) && | |
2926 | (xab.xab$l_uic & 0xFFFF) == memid) | |
2927 | return 0; /* Owner writeable */ | |
2928 | ||
2929 | return -1; /* Not writeable */ | |
2930 | } | |
2931 | #endif /* not VMS4_4 */ | |
2932 | #endif /* access */ | |
2933 | ||
2934 | static char vtbuf[NAM$C_MAXRSS+1]; | |
2935 | ||
2936 | /* translate a vms file spec to a unix path */ | |
2937 | char * | |
2938 | sys_translate_vms (vfile) | |
2939 | char * vfile; | |
2940 | { | |
2941 | char * p; | |
2942 | char * targ; | |
2943 | ||
2944 | if (!vfile) | |
2945 | return 0; | |
2946 | ||
2947 | targ = vtbuf; | |
2948 | ||
2949 | /* leading device or logical name is a root directory */ | |
2950 | if (p = strchr (vfile, ':')) | |
2951 | { | |
2952 | *targ++ = '/'; | |
2953 | while (vfile < p) | |
2954 | *targ++ = *vfile++; | |
2955 | vfile++; | |
2956 | *targ++ = '/'; | |
2957 | } | |
2958 | p = vfile; | |
2959 | if (*p == '[' || *p == '<') | |
2960 | { | |
2961 | while (*++vfile != *p + 2) | |
2962 | switch (*vfile) | |
2963 | { | |
2964 | case '.': | |
2965 | if (vfile[-1] == *p) | |
2966 | *targ++ = '.'; | |
2967 | *targ++ = '/'; | |
2968 | break; | |
2969 | ||
2970 | case '-': | |
2971 | *targ++ = '.'; | |
2972 | *targ++ = '.'; | |
2973 | break; | |
2974 | ||
2975 | default: | |
2976 | *targ++ = *vfile; | |
2977 | break; | |
2978 | } | |
2979 | vfile++; | |
2980 | *targ++ = '/'; | |
2981 | } | |
2982 | while (*vfile) | |
2983 | *targ++ = *vfile++; | |
2984 | ||
2985 | return vtbuf; | |
2986 | } | |
2987 | ||
2988 | static char utbuf[NAM$C_MAXRSS+1]; | |
2989 | ||
2990 | /* translate a unix path to a VMS file spec */ | |
2991 | char * | |
2992 | sys_translate_unix (ufile) | |
2993 | char * ufile; | |
2994 | { | |
2995 | int slash_seen = 0; | |
2996 | char *p; | |
2997 | char * targ; | |
2998 | ||
2999 | if (!ufile) | |
3000 | return 0; | |
3001 | ||
3002 | targ = utbuf; | |
3003 | ||
3004 | if (*ufile == '/') | |
3005 | { | |
3006 | ufile++; | |
3007 | } | |
3008 | ||
3009 | while (*ufile) | |
3010 | { | |
3011 | switch (*ufile) | |
3012 | { | |
3013 | case '/': | |
3014 | if (slash_seen) | |
3015 | if (index (&ufile[1], '/')) | |
3016 | *targ++ = '.'; | |
3017 | else | |
3018 | *targ++ = ']'; | |
3019 | else | |
3020 | { | |
3021 | *targ++ = ':'; | |
3022 | if (index (&ufile[1], '/')) | |
3023 | *targ++ = '['; | |
3024 | slash_seen = 1; | |
3025 | } | |
3026 | break; | |
3027 | ||
3028 | case '.': | |
3029 | if (strncmp (ufile, "./", 2) == 0) | |
3030 | { | |
3031 | if (!slash_seen) | |
3032 | { | |
3033 | *targ++ = '['; | |
3034 | slash_seen = 1; | |
3035 | } | |
3036 | ufile++; /* skip the dot */ | |
3037 | if (index (&ufile[1], '/')) | |
3038 | *targ++ = '.'; | |
3039 | else | |
3040 | *targ++ = ']'; | |
3041 | } | |
3042 | else if (strncmp (ufile, "../", 3) == 0) | |
3043 | { | |
3044 | if (!slash_seen) | |
3045 | { | |
3046 | *targ++ = '['; | |
3047 | slash_seen = 1; | |
3048 | } | |
3049 | *targ++ = '-'; | |
3050 | ufile += 2; /* skip the dots */ | |
3051 | if (index (&ufile[1], '/')) | |
3052 | *targ++ = '.'; | |
3053 | else | |
3054 | *targ++ = ']'; | |
3055 | } | |
3056 | else | |
3057 | *targ++ = *ufile; | |
3058 | break; | |
3059 | ||
3060 | default: | |
3061 | *targ++ = *ufile; | |
3062 | break; | |
3063 | } | |
3064 | ufile++; | |
3065 | } | |
3066 | *targ = '\0'; | |
3067 | ||
3068 | return utbuf; | |
3069 | } | |
3070 | ||
3071 | char * | |
3072 | getwd (pathname) | |
3073 | char *pathname; | |
3074 | { | |
3075 | char *ptr; | |
3076 | strcpy (pathname, egetenv ("PATH")); | |
3077 | ||
3078 | ptr = pathname; | |
3079 | while (*ptr) | |
3080 | { | |
3081 | if ('a' <= *ptr && *ptr <= 'z') | |
3082 | *ptr -= 040; | |
3083 | ptr++; | |
3084 | } | |
3085 | return pathname; | |
3086 | } | |
3087 | ||
3088 | getppid () | |
3089 | { | |
3090 | long item_code = JPI$_OWNER; | |
3091 | unsigned long parent_id; | |
3092 | int status; | |
3093 | ||
3094 | if (((status = LIB$GETJPI (&item_code, 0, 0, &parent_id)) & 1) == 0) | |
3095 | { | |
3096 | errno = EVMSERR; | |
3097 | vaxc$errno = status; | |
3098 | return -1; | |
3099 | } | |
3100 | return parent_id; | |
3101 | } | |
3102 | ||
3103 | #undef getuid | |
3104 | unsigned | |
3105 | sys_getuid () | |
3106 | { | |
3107 | return (getgid () << 16) | getuid (); | |
3108 | } | |
3109 | ||
3110 | int | |
3111 | sys_read (fildes, buf, nbyte) | |
3112 | int fildes; | |
3113 | char *buf; | |
3114 | unsigned int nbyte; | |
3115 | { | |
3116 | return read (fildes, buf, (nbyte < MAXIOSIZE ? nbyte : MAXIOSIZE)); | |
3117 | } | |
3118 | ||
3119 | #if 0 | |
3120 | int | |
3121 | sys_write (fildes, buf, nbyte) | |
3122 | int fildes; | |
3123 | char *buf; | |
3124 | unsigned int nbyte; | |
3125 | { | |
3126 | register int nwrote, rtnval = 0; | |
3127 | ||
3128 | while (nbyte > MAXIOSIZE && (nwrote = write (fildes, buf, MAXIOSIZE)) > 0) { | |
3129 | nbyte -= nwrote; | |
3130 | buf += nwrote; | |
3131 | rtnval += nwrote; | |
3132 | } | |
3133 | if (nwrote < 0) | |
3134 | return rtnval ? rtnval : -1; | |
3135 | if ((nwrote = write (fildes, buf, nbyte)) < 0) | |
3136 | return rtnval ? rtnval : -1; | |
3137 | return (rtnval + nwrote); | |
3138 | } | |
3139 | #endif /* 0 */ | |
3140 | ||
3141 | /* | |
3142 | * VAX/VMS VAX C RTL really loses. It insists that records | |
3143 | * end with a newline (carriage return) character, and if they | |
3144 | * don't it adds one (nice of it isn't it!) | |
3145 | * | |
3146 | * Thus we do this stupidity below. | |
3147 | */ | |
3148 | ||
3149 | int | |
3150 | sys_write (fildes, buf, nbytes) | |
3151 | int fildes; | |
3152 | char *buf; | |
3153 | unsigned int nbytes; | |
3154 | { | |
3155 | register char *p; | |
3156 | register char *e; | |
23b0668c JB |
3157 | int sum = 0; |
3158 | struct stat st; | |
3159 | ||
3160 | fstat (fildes, &st); | |
86a5659e | 3161 | p = buf; |
86a5659e JB |
3162 | while (nbytes > 0) |
3163 | { | |
23b0668c JB |
3164 | int len, retval; |
3165 | ||
3166 | /* Handle fixed-length files with carriage control. */ | |
3167 | if (st.st_fab_rfm == FAB$C_FIX | |
3168 | && ((st.st_fab_rat & (FAB$M_FTN | FAB$M_CR)) != 0)) | |
3169 | { | |
3170 | len = st.st_fab_mrs; | |
3171 | retval = write (fildes, p, min (len, nbytes)); | |
3172 | if (retval != len) | |
3173 | return -1; | |
3174 | retval++; /* This skips the implied carriage control */ | |
3175 | } | |
3176 | else | |
3177 | { | |
3178 | e = p + min (MAXIOSIZE, nbytes) - 1; | |
3179 | while (*e != '\n' && e > p) e--; | |
3180 | if (p == e) /* Ok.. so here we add a newline... sigh. */ | |
3181 | e = p + min (MAXIOSIZE, nbytes) - 1; | |
3182 | len = e + 1 - p; | |
3183 | retval = write (fildes, p, len); | |
3184 | if (retval != len) | |
3185 | return -1; | |
3186 | } | |
3187 | p += retval; | |
3188 | sum += retval; | |
86a5659e JB |
3189 | nbytes -= retval; |
3190 | } | |
3191 | return sum; | |
3192 | } | |
3193 | ||
3194 | /* Create file NEW copying its attributes from file OLD. If | |
3195 | OLD is 0 or does not exist, create based on the value of | |
3196 | vms_stmlf_recfm. */ | |
3197 | ||
3198 | /* Protection value the file should ultimately have. | |
3199 | Set by create_copy_attrs, and use by rename_sansversions. */ | |
3200 | static unsigned short int fab_final_pro; | |
3201 | ||
3202 | int | |
3203 | creat_copy_attrs (old, new) | |
3204 | char *old, *new; | |
3205 | { | |
3206 | struct FAB fab = cc$rms_fab; | |
3207 | struct XABPRO xabpro; | |
3208 | char aclbuf[256]; /* Choice of size is arbitrary. See below. */ | |
3209 | extern int vms_stmlf_recfm; | |
3210 | ||
3211 | if (old) | |
3212 | { | |
3213 | fab.fab$b_fac = FAB$M_GET; | |
3214 | fab.fab$l_fna = old; | |
3215 | fab.fab$b_fns = strlen (old); | |
3216 | fab.fab$l_xab = (char *) &xabpro; | |
3217 | xabpro = cc$rms_xabpro; | |
3218 | xabpro.xab$l_aclbuf = aclbuf; | |
3219 | xabpro.xab$w_aclsiz = sizeof aclbuf; | |
3220 | /* Call $OPEN to fill in the fab & xabpro fields. */ | |
3221 | if (sys$open (&fab, 0, 0) & 1) | |
3222 | { | |
3223 | sys$close (&fab, 0, 0); | |
3224 | fab.fab$l_alq = 0; /* zero the allocation quantity */ | |
3225 | if (xabpro.xab$w_acllen > 0) | |
3226 | { | |
3227 | if (xabpro.xab$w_acllen > sizeof aclbuf) | |
3228 | /* If the acl buffer was too short, redo open with longer one. | |
3229 | Wouldn't need to do this if there were some system imposed | |
3230 | limit on the size of an ACL, but I can't find any such. */ | |
3231 | { | |
3232 | xabpro.xab$l_aclbuf = (char *) alloca (xabpro.xab$w_acllen); | |
3233 | xabpro.xab$w_aclsiz = xabpro.xab$w_acllen; | |
3234 | if (sys$open (&fab, 0, 0) & 1) | |
3235 | sys$close (&fab, 0, 0); | |
3236 | else | |
3237 | old = 0; | |
3238 | } | |
3239 | } | |
3240 | else | |
3241 | xabpro.xab$l_aclbuf = 0; | |
3242 | } | |
3243 | else | |
3244 | old = 0; | |
3245 | } | |
3246 | fab.fab$l_fna = new; | |
3247 | fab.fab$b_fns = strlen (new); | |
3248 | if (!old) | |
3249 | { | |
3250 | fab.fab$l_xab = 0; | |
3251 | fab.fab$b_rfm = vms_stmlf_recfm ? FAB$C_STMLF : FAB$C_VAR; | |
3252 | fab.fab$b_rat = FAB$M_CR; | |
3253 | } | |
3254 | ||
3255 | /* Set the file protections such that we will be able to manipulate | |
3256 | this file. Once we are done writing and renaming it, we will set | |
3257 | the protections back. */ | |
3258 | if (old) | |
3259 | fab_final_pro = xabpro.xab$w_pro; | |
3260 | else | |
3261 | sys$setdfprot (0, &fab_final_pro); | |
3262 | xabpro.xab$w_pro &= 0xff0f; /* set O:rewd for now. This is set back later. */ | |
3263 | ||
3264 | /* Create the new file with either default attrs or attrs copied | |
3265 | from old file. */ | |
3266 | if (!(SYS$CREATE (&fab, 0, 0) & 1)) | |
3267 | return -1; | |
3268 | sys$close (&fab, 0, 0); | |
3269 | /* As this is a "replacement" for creat, return a file descriptor | |
3270 | opened for writing. */ | |
3271 | return open (new, O_WRONLY); | |
3272 | } | |
3273 | ||
3274 | #ifdef creat | |
3275 | #undef creat | |
3276 | #include <varargs.h> | |
3277 | #ifdef __GNUC__ | |
3278 | #ifndef va_count | |
3279 | #define va_count(X) ((X) = *(((int *) &(va_alist)) - 1)) | |
3280 | #endif | |
3281 | #endif | |
3282 | ||
3283 | sys_creat (va_alist) | |
3284 | va_dcl | |
3285 | { | |
3286 | va_list list_incrementor; | |
3287 | char *name; | |
3288 | int mode; | |
3289 | int rfd; /* related file descriptor */ | |
3290 | int fd; /* Our new file descriptor */ | |
3291 | int count; | |
3292 | struct stat st_buf; | |
3293 | char rfm[12]; | |
3294 | char rat[15]; | |
3295 | char mrs[13]; | |
3296 | char fsz[13]; | |
3297 | extern int vms_stmlf_recfm; | |
3298 | ||
3299 | va_count (count); | |
3300 | va_start (list_incrementor); | |
3301 | name = va_arg (list_incrementor, char *); | |
3302 | mode = va_arg (list_incrementor, int); | |
3303 | if (count > 2) | |
3304 | rfd = va_arg (list_incrementor, int); | |
3305 | va_end (list_incrementor); | |
3306 | if (count > 2) | |
3307 | { | |
3308 | /* Use information from the related file descriptor to set record | |
3309 | format of the newly created file. */ | |
3310 | fstat (rfd, &st_buf); | |
3311 | switch (st_buf.st_fab_rfm) | |
3312 | { | |
3313 | case FAB$C_FIX: | |
3314 | strcpy (rfm, "rfm = fix"); | |
3315 | sprintf (mrs, "mrs = %d", st_buf.st_fab_mrs); | |
3316 | strcpy (rat, "rat = "); | |
3317 | if (st_buf.st_fab_rat & FAB$M_CR) | |
3318 | strcat (rat, "cr"); | |
3319 | else if (st_buf.st_fab_rat & FAB$M_FTN) | |
3320 | strcat (rat, "ftn"); | |
3321 | else if (st_buf.st_fab_rat & FAB$M_PRN) | |
3322 | strcat (rat, "prn"); | |
3323 | if (st_buf.st_fab_rat & FAB$M_BLK) | |
3324 | if (st_buf.st_fab_rat & (FAB$M_CR|FAB$M_FTN|FAB$M_PRN)) | |
3325 | strcat (rat, ", blk"); | |
3326 | else | |
3327 | strcat (rat, "blk"); | |
3328 | return creat (name, 0, rfm, rat, mrs); | |
3329 | ||
3330 | case FAB$C_VFC: | |
3331 | strcpy (rfm, "rfm = vfc"); | |
3332 | sprintf (fsz, "fsz = %d", st_buf.st_fab_fsz); | |
3333 | strcpy (rat, "rat = "); | |
3334 | if (st_buf.st_fab_rat & FAB$M_CR) | |
3335 | strcat (rat, "cr"); | |
3336 | else if (st_buf.st_fab_rat & FAB$M_FTN) | |
3337 | strcat (rat, "ftn"); | |
3338 | else if (st_buf.st_fab_rat & FAB$M_PRN) | |
3339 | strcat (rat, "prn"); | |
3340 | if (st_buf.st_fab_rat & FAB$M_BLK) | |
3341 | if (st_buf.st_fab_rat & (FAB$M_CR|FAB$M_FTN|FAB$M_PRN)) | |
3342 | strcat (rat, ", blk"); | |
3343 | else | |
3344 | strcat (rat, "blk"); | |
3345 | return creat (name, 0, rfm, rat, fsz); | |
3346 | ||
3347 | case FAB$C_STM: | |
3348 | strcpy (rfm, "rfm = stm"); | |
3349 | break; | |
3350 | ||
3351 | case FAB$C_STMCR: | |
3352 | strcpy (rfm, "rfm = stmcr"); | |
3353 | break; | |
3354 | ||
3355 | case FAB$C_STMLF: | |
3356 | strcpy (rfm, "rfm = stmlf"); | |
3357 | break; | |
3358 | ||
3359 | case FAB$C_UDF: | |
3360 | strcpy (rfm, "rfm = udf"); | |
3361 | break; | |
3362 | ||
3363 | case FAB$C_VAR: | |
3364 | strcpy (rfm, "rfm = var"); | |
3365 | break; | |
3366 | } | |
3367 | strcpy (rat, "rat = "); | |
3368 | if (st_buf.st_fab_rat & FAB$M_CR) | |
3369 | strcat (rat, "cr"); | |
3370 | else if (st_buf.st_fab_rat & FAB$M_FTN) | |
3371 | strcat (rat, "ftn"); | |
3372 | else if (st_buf.st_fab_rat & FAB$M_PRN) | |
3373 | strcat (rat, "prn"); | |
3374 | if (st_buf.st_fab_rat & FAB$M_BLK) | |
3375 | if (st_buf.st_fab_rat & (FAB$M_CR|FAB$M_FTN|FAB$M_PRN)) | |
3376 | strcat (rat, ", blk"); | |
3377 | else | |
3378 | strcat (rat, "blk"); | |
3379 | } | |
3380 | else | |
3381 | { | |
3382 | strcpy (rfm, vms_stmlf_recfm ? "rfm = stmlf" : "rfm=var"); | |
3383 | strcpy (rat, "rat=cr"); | |
3384 | } | |
3385 | /* Until the VAX C RTL fixes the many bugs with modes, always use | |
3386 | mode 0 to get the user's default protection. */ | |
3387 | fd = creat (name, 0, rfm, rat); | |
3388 | if (fd < 0 && errno == EEXIST) | |
3389 | { | |
3390 | if (unlink (name) < 0) | |
3391 | report_file_error ("delete", build_string (name)); | |
3392 | fd = creat (name, 0, rfm, rat); | |
3393 | } | |
3394 | return fd; | |
3395 | } | |
3396 | #endif /* creat */ | |
3397 | ||
3398 | /* fwrite to stdout is S L O W. Speed it up by using fputc...*/ | |
3399 | sys_fwrite (ptr, size, num, fp) | |
3400 | register char * ptr; | |
3401 | FILE * fp; | |
3402 | { | |
3403 | register int tot = num * size; | |
3404 | ||
3405 | while (tot--) | |
3406 | fputc (*ptr++, fp); | |
3407 | } | |
3408 | ||
3409 | /* | |
3410 | * The VMS C library routine creat actually creates a new version of an | |
3411 | * existing file rather than truncating the old version. There are times | |
3412 | * when this is not the desired behavior, for instance, when writing an | |
3413 | * auto save file (you only want one version), or when you don't have | |
3414 | * write permission in the directory containing the file (but the file | |
3415 | * itself is writable). Hence this routine, which is equivalent to | |
3416 | * "close (creat (fn, 0));" on Unix if fn already exists. | |
3417 | */ | |
3418 | int | |
3419 | vms_truncate (fn) | |
3420 | char *fn; | |
3421 | { | |
3422 | struct FAB xfab = cc$rms_fab; | |
3423 | struct RAB xrab = cc$rms_rab; | |
3424 | int status; | |
3425 | ||
3426 | xfab.fab$l_fop = FAB$M_TEF; /* free allocated but unused blocks on close */ | |
3427 | xfab.fab$b_fac = FAB$M_TRN | FAB$M_GET; /* allow truncate and get access */ | |
3428 | xfab.fab$b_shr = FAB$M_NIL; /* allow no sharing - file must be locked */ | |
3429 | xfab.fab$l_fna = fn; | |
3430 | xfab.fab$b_fns = strlen (fn); | |
3431 | xfab.fab$l_dna = ";0"; /* default to latest version of the file */ | |
3432 | xfab.fab$b_dns = 2; | |
3433 | xrab.rab$l_fab = &xfab; | |
3434 | ||
3435 | /* This gibberish opens the file, positions to the first record, and | |
3436 | deletes all records from there until the end of file. */ | |
3437 | if ((sys$open (&xfab) & 01) == 01) | |
3438 | { | |
3439 | if ((sys$connect (&xrab) & 01) == 01 && | |
3440 | (sys$find (&xrab) & 01) == 01 && | |
3441 | (sys$truncate (&xrab) & 01) == 01) | |
3442 | status = 0; | |
3443 | else | |
3444 | status = -1; | |
3445 | } | |
3446 | else | |
3447 | status = -1; | |
3448 | sys$close (&xfab); | |
3449 | return status; | |
3450 | } | |
3451 | ||
3452 | /* Define this symbol to actually read SYSUAF.DAT. This requires either | |
3453 | SYSPRV or a readable SYSUAF.DAT. */ | |
3454 | ||
3455 | #ifdef READ_SYSUAF | |
3456 | /* | |
3457 | * getuaf.c | |
3458 | * | |
3459 | * Routine to read the VMS User Authorization File and return | |
3460 | * a specific user's record. | |
3461 | */ | |
3462 | ||
3463 | static struct UAF retuaf; | |
3464 | ||
3465 | struct UAF * | |
3466 | get_uaf_name (uname) | |
3467 | char * uname; | |
3468 | { | |
3469 | register status; | |
3470 | struct FAB uaf_fab; | |
3471 | struct RAB uaf_rab; | |
3472 | ||
3473 | uaf_fab = cc$rms_fab; | |
3474 | uaf_rab = cc$rms_rab; | |
3475 | /* initialize fab fields */ | |
3476 | uaf_fab.fab$l_fna = "SYS$SYSTEM:SYSUAF.DAT"; | |
3477 | uaf_fab.fab$b_fns = 21; | |
3478 | uaf_fab.fab$b_fac = FAB$M_GET; | |
3479 | uaf_fab.fab$b_org = FAB$C_IDX; | |
3480 | uaf_fab.fab$b_shr = FAB$M_GET|FAB$M_PUT|FAB$M_UPD|FAB$M_DEL; | |
3481 | /* initialize rab fields */ | |
3482 | uaf_rab.rab$l_fab = &uaf_fab; | |
3483 | /* open the User Authorization File */ | |
3484 | status = sys$open (&uaf_fab); | |
3485 | if (!(status&1)) | |
3486 | { | |
3487 | errno = EVMSERR; | |
3488 | vaxc$errno = status; | |
3489 | return 0; | |
3490 | } | |
3491 | status = sys$connect (&uaf_rab); | |
3492 | if (!(status&1)) | |
3493 | { | |
3494 | errno = EVMSERR; | |
3495 | vaxc$errno = status; | |
3496 | return 0; | |
3497 | } | |
3498 | /* read the requested record - index is in uname */ | |
3499 | uaf_rab.rab$l_kbf = uname; | |
3500 | uaf_rab.rab$b_ksz = strlen (uname); | |
3501 | uaf_rab.rab$b_rac = RAB$C_KEY; | |
3502 | uaf_rab.rab$l_ubf = (char *)&retuaf; | |
3503 | uaf_rab.rab$w_usz = sizeof retuaf; | |
3504 | status = sys$get (&uaf_rab); | |
3505 | if (!(status&1)) | |
3506 | { | |
3507 | errno = EVMSERR; | |
3508 | vaxc$errno = status; | |
3509 | return 0; | |
3510 | } | |
3511 | /* close the User Authorization File */ | |
3512 | status = sys$disconnect (&uaf_rab); | |
3513 | if (!(status&1)) | |
3514 | { | |
3515 | errno = EVMSERR; | |
3516 | vaxc$errno = status; | |
3517 | return 0; | |
3518 | } | |
3519 | status = sys$close (&uaf_fab); | |
3520 | if (!(status&1)) | |
3521 | { | |
3522 | errno = EVMSERR; | |
3523 | vaxc$errno = status; | |
3524 | return 0; | |
3525 | } | |
3526 | return &retuaf; | |
3527 | } | |
3528 | ||
3529 | struct UAF * | |
3530 | get_uaf_uic (uic) | |
3531 | unsigned long uic; | |
3532 | { | |
3533 | register status; | |
3534 | struct FAB uaf_fab; | |
3535 | struct RAB uaf_rab; | |
3536 | ||
3537 | uaf_fab = cc$rms_fab; | |
3538 | uaf_rab = cc$rms_rab; | |
3539 | /* initialize fab fields */ | |
3540 | uaf_fab.fab$l_fna = "SYS$SYSTEM:SYSUAF.DAT"; | |
3541 | uaf_fab.fab$b_fns = 21; | |
3542 | uaf_fab.fab$b_fac = FAB$M_GET; | |
3543 | uaf_fab.fab$b_org = FAB$C_IDX; | |
3544 | uaf_fab.fab$b_shr = FAB$M_GET|FAB$M_PUT|FAB$M_UPD|FAB$M_DEL; | |
3545 | /* initialize rab fields */ | |
3546 | uaf_rab.rab$l_fab = &uaf_fab; | |
3547 | /* open the User Authorization File */ | |
3548 | status = sys$open (&uaf_fab); | |
3549 | if (!(status&1)) | |
3550 | { | |
3551 | errno = EVMSERR; | |
3552 | vaxc$errno = status; | |
3553 | return 0; | |
3554 | } | |
3555 | status = sys$connect (&uaf_rab); | |
3556 | if (!(status&1)) | |
3557 | { | |
3558 | errno = EVMSERR; | |
3559 | vaxc$errno = status; | |
3560 | return 0; | |
3561 | } | |
3562 | /* read the requested record - index is in uic */ | |
3563 | uaf_rab.rab$b_krf = 1; /* 1st alternate key */ | |
3564 | uaf_rab.rab$l_kbf = (char *) &uic; | |
3565 | uaf_rab.rab$b_ksz = sizeof uic; | |
3566 | uaf_rab.rab$b_rac = RAB$C_KEY; | |
3567 | uaf_rab.rab$l_ubf = (char *)&retuaf; | |
3568 | uaf_rab.rab$w_usz = sizeof retuaf; | |
3569 | status = sys$get (&uaf_rab); | |
3570 | if (!(status&1)) | |
3571 | { | |
3572 | errno = EVMSERR; | |
3573 | vaxc$errno = status; | |
3574 | return 0; | |
3575 | } | |
3576 | /* close the User Authorization File */ | |
3577 | status = sys$disconnect (&uaf_rab); | |
3578 | if (!(status&1)) | |
3579 | { | |
3580 | errno = EVMSERR; | |
3581 | vaxc$errno = status; | |
3582 | return 0; | |
3583 | } | |
3584 | status = sys$close (&uaf_fab); | |
3585 | if (!(status&1)) | |
3586 | { | |
3587 | errno = EVMSERR; | |
3588 | vaxc$errno = status; | |
3589 | return 0; | |
3590 | } | |
3591 | return &retuaf; | |
3592 | } | |
3593 | ||
3594 | static struct passwd retpw; | |
3595 | ||
3596 | struct passwd * | |
3597 | cnv_uaf_pw (up) | |
3598 | struct UAF * up; | |
3599 | { | |
3600 | char * ptr; | |
3601 | ||
3602 | /* copy these out first because if the username is 32 chars, the next | |
3603 | section will overwrite the first byte of the UIC */ | |
3604 | retpw.pw_uid = up->uaf$w_mem; | |
3605 | retpw.pw_gid = up->uaf$w_grp; | |
3606 | ||
3607 | /* I suppose this is not the best sytle, to possibly overwrite one | |
3608 | byte beyond the end of the field, but what the heck... */ | |
3609 | ptr = &up->uaf$t_username[UAF$S_USERNAME]; | |
3610 | while (ptr[-1] == ' ') | |
3611 | ptr--; | |
3612 | *ptr = '\0'; | |
3613 | strcpy (retpw.pw_name, up->uaf$t_username); | |
3614 | ||
3615 | /* the rest of these are counted ascii strings */ | |
3616 | strncpy (retpw.pw_gecos, &up->uaf$t_owner[1], up->uaf$t_owner[0]); | |
3617 | retpw.pw_gecos[up->uaf$t_owner[0]] = '\0'; | |
3618 | strncpy (retpw.pw_dir, &up->uaf$t_defdev[1], up->uaf$t_defdev[0]); | |
3619 | retpw.pw_dir[up->uaf$t_defdev[0]] = '\0'; | |
3620 | strncat (retpw.pw_dir, &up->uaf$t_defdir[1], up->uaf$t_defdir[0]); | |
3621 | retpw.pw_dir[up->uaf$t_defdev[0] + up->uaf$t_defdir[0]] = '\0'; | |
3622 | strncpy (retpw.pw_shell, &up->uaf$t_defcli[1], up->uaf$t_defcli[0]); | |
3623 | retpw.pw_shell[up->uaf$t_defcli[0]] = '\0'; | |
3624 | ||
3625 | return &retpw; | |
3626 | } | |
3627 | #else /* not READ_SYSUAF */ | |
3628 | static struct passwd retpw; | |
3629 | #endif /* not READ_SYSUAF */ | |
3630 | ||
3631 | struct passwd * | |
3632 | getpwnam (name) | |
3633 | char * name; | |
3634 | { | |
3635 | #ifdef READ_SYSUAF | |
3636 | struct UAF *up; | |
3637 | #else | |
3638 | char * user; | |
3639 | char * dir; | |
3640 | unsigned char * full; | |
3641 | #endif /* READ_SYSUAF */ | |
3642 | char *ptr = name; | |
3643 | ||
3644 | while (*ptr) | |
3645 | { | |
3646 | if ('a' <= *ptr && *ptr <= 'z') | |
3647 | *ptr -= 040; | |
3648 | ptr++; | |
3649 | } | |
3650 | #ifdef READ_SYSUAF | |
3651 | if (!(up = get_uaf_name (name))) | |
3652 | return 0; | |
3653 | return cnv_uaf_pw (up); | |
3654 | #else | |
3655 | if (strcmp (name, getenv ("USER")) == 0) | |
3656 | { | |
3657 | retpw.pw_uid = getuid (); | |
3658 | retpw.pw_gid = getgid (); | |
3659 | strcpy (retpw.pw_name, name); | |
3660 | if (full = egetenv ("FULLNAME")) | |
3661 | strcpy (retpw.pw_gecos, full); | |
3662 | else | |
3663 | *retpw.pw_gecos = '\0'; | |
3664 | strcpy (retpw.pw_dir, egetenv ("HOME")); | |
3665 | *retpw.pw_shell = '\0'; | |
3666 | return &retpw; | |
3667 | } | |
3668 | else | |
3669 | return 0; | |
3670 | #endif /* not READ_SYSUAF */ | |
3671 | } | |
3672 | ||
3673 | struct passwd * | |
3674 | getpwuid (uid) | |
3675 | unsigned long uid; | |
3676 | { | |
3677 | #ifdef READ_SYSUAF | |
3678 | struct UAF * up; | |
3679 | ||
3680 | if (!(up = get_uaf_uic (uid))) | |
3681 | return 0; | |
3682 | return cnv_uaf_pw (up); | |
3683 | #else | |
3684 | if (uid == sys_getuid ()) | |
3685 | return getpwnam (egetenv ("USER")); | |
3686 | else | |
3687 | return 0; | |
3688 | #endif /* not READ_SYSUAF */ | |
3689 | } | |
3690 | ||
3691 | /* return total address space available to the current process. This is | |
3692 | the sum of the current p0 size, p1 size and free page table entries | |
3693 | available. */ | |
3694 | vlimit () | |
3695 | { | |
3696 | int item_code; | |
3697 | unsigned long free_pages; | |
3698 | unsigned long frep0va; | |
3699 | unsigned long frep1va; | |
3700 | register status; | |
3701 | ||
3702 | item_code = JPI$_FREPTECNT; | |
3703 | if (((status = LIB$GETJPI (&item_code, 0, 0, &free_pages)) & 1) == 0) | |
3704 | { | |
3705 | errno = EVMSERR; | |
3706 | vaxc$errno = status; | |
3707 | return -1; | |
3708 | } | |
3709 | free_pages *= 512; | |
3710 | ||
3711 | item_code = JPI$_FREP0VA; | |
3712 | if (((status = LIB$GETJPI (&item_code, 0, 0, &frep0va)) & 1) == 0) | |
3713 | { | |
3714 | errno = EVMSERR; | |
3715 | vaxc$errno = status; | |
3716 | return -1; | |
3717 | } | |
3718 | item_code = JPI$_FREP1VA; | |
3719 | if (((status = LIB$GETJPI (&item_code, 0, 0, &frep1va)) & 1) == 0) | |
3720 | { | |
3721 | errno = EVMSERR; | |
3722 | vaxc$errno = status; | |
3723 | return -1; | |
3724 | } | |
3725 | ||
3726 | return free_pages + frep0va + (0x7fffffff - frep1va); | |
3727 | } | |
3728 | ||
3729 | define_logical_name (varname, string) | |
3730 | char *varname; | |
3731 | char *string; | |
3732 | { | |
3733 | struct dsc$descriptor_s strdsc = | |
3734 | {strlen (string), DSC$K_DTYPE_T, DSC$K_CLASS_S, string}; | |
3735 | struct dsc$descriptor_s envdsc = | |
3736 | {strlen (varname), DSC$K_DTYPE_T, DSC$K_CLASS_S, varname}; | |
3737 | struct dsc$descriptor_s lnmdsc = | |
3738 | {7, DSC$K_DTYPE_T, DSC$K_CLASS_S, "LNM$JOB"}; | |
3739 | ||
3740 | return LIB$SET_LOGICAL (&envdsc, &strdsc, &lnmdsc, 0, 0); | |
3741 | } | |
3742 | ||
3743 | delete_logical_name (varname) | |
3744 | char *varname; | |
3745 | { | |
3746 | struct dsc$descriptor_s envdsc = | |
3747 | {strlen (varname), DSC$K_DTYPE_T, DSC$K_CLASS_S, varname}; | |
3748 | struct dsc$descriptor_s lnmdsc = | |
3749 | {7, DSC$K_DTYPE_T, DSC$K_CLASS_S, "LNM$JOB"}; | |
3750 | ||
3751 | return LIB$DELETE_LOGICAL (&envdsc, &lnmdsc); | |
3752 | } | |
3753 | ||
3754 | ulimit () | |
3755 | {} | |
3756 | ||
3757 | setpriority () | |
3758 | {} | |
3759 | ||
3760 | setpgrp () | |
3761 | {} | |
3762 | ||
3763 | execvp () | |
3764 | { | |
3765 | error ("execvp system call not implemented"); | |
3766 | } | |
3767 | ||
3768 | int | |
3769 | rename (from, to) | |
3770 | char *from, *to; | |
3771 | { | |
3772 | int status; | |
3773 | struct FAB from_fab = cc$rms_fab, to_fab = cc$rms_fab; | |
3774 | struct NAM from_nam = cc$rms_nam, to_nam = cc$rms_nam; | |
3775 | char from_esn[NAM$C_MAXRSS]; | |
3776 | char to_esn[NAM$C_MAXRSS]; | |
3777 | ||
3778 | from_fab.fab$l_fna = from; | |
3779 | from_fab.fab$b_fns = strlen (from); | |
3780 | from_fab.fab$l_nam = &from_nam; | |
3781 | from_fab.fab$l_fop = FAB$M_NAM; | |
3782 | ||
3783 | from_nam.nam$l_esa = from_esn; | |
3784 | from_nam.nam$b_ess = sizeof from_esn; | |
3785 | ||
3786 | to_fab.fab$l_fna = to; | |
3787 | to_fab.fab$b_fns = strlen (to); | |
3788 | to_fab.fab$l_nam = &to_nam; | |
3789 | to_fab.fab$l_fop = FAB$M_NAM; | |
3790 | ||
3791 | to_nam.nam$l_esa = to_esn; | |
3792 | to_nam.nam$b_ess = sizeof to_esn; | |
3793 | ||
3794 | status = SYS$RENAME (&from_fab, 0, 0, &to_fab); | |
3795 | ||
3796 | if (status & 1) | |
3797 | return 0; | |
3798 | else | |
3799 | { | |
3800 | if (status == RMS$_DEV) | |
3801 | errno = EXDEV; | |
3802 | else | |
3803 | errno = EVMSERR; | |
3804 | vaxc$errno = status; | |
3805 | return -1; | |
3806 | } | |
3807 | } | |
3808 | ||
3809 | /* This function renames a file like `rename', but it strips | |
3810 | the version number from the "to" filename, such that the "to" file is | |
3811 | will always be a new version. It also sets the file protection once it is | |
3812 | finished. The protection that we will use is stored in fab_final_pro, | |
3813 | and was set when we did a creat_copy_attrs to create the file that we | |
3814 | are renaming. | |
3815 | ||
3816 | We could use the chmod function, but Eunichs uses 3 bits per user category | |
3817 | to describe the protection, and VMS uses 4 (write and delete are seperate | |
3818 | bits). To maintain portability, the VMS implementation of `chmod' wires | |
3819 | the W and D bits together. */ | |
3820 | ||
3821 | ||
3822 | static struct fibdef fib; /* We need this initialized to zero */ | |
3823 | char vms_file_written[NAM$C_MAXRSS]; | |
3824 | ||
3825 | int | |
3826 | rename_sans_version (from,to) | |
3827 | char *from, *to; | |
3828 | { | |
3829 | short int chan; | |
3830 | int stat; | |
3831 | short int iosb[4]; | |
3832 | int status; | |
3833 | struct FAB to_fab = cc$rms_fab; | |
3834 | struct NAM to_nam = cc$rms_nam; | |
3835 | struct dsc$descriptor fib_d ={sizeof (fib),0,0,(char*) &fib}; | |
3836 | struct dsc$descriptor fib_attr[2] | |
3837 | = {{sizeof (fab_final_pro),ATR$C_FPRO,0,(char*) &fab_final_pro},{0,0,0,0}}; | |
3838 | char to_esn[NAM$C_MAXRSS]; | |
3839 | ||
3840 | $DESCRIPTOR (disk,to_esn); | |
3841 | ||
3842 | to_fab.fab$l_fna = to; | |
3843 | to_fab.fab$b_fns = strlen (to); | |
3844 | to_fab.fab$l_nam = &to_nam; | |
3845 | to_fab.fab$l_fop = FAB$M_NAM; | |
3846 | ||
3847 | to_nam.nam$l_esa = to_esn; | |
3848 | to_nam.nam$b_ess = sizeof to_esn; | |
3849 | ||
3850 | status = SYS$PARSE (&to_fab, 0, 0); /* figure out the full file name */ | |
3851 | ||
3852 | if (to_nam.nam$l_fnb && NAM$M_EXP_VER) | |
3853 | *(to_nam.nam$l_ver) = '\0'; | |
3854 | ||
3855 | stat = rename (from, to_esn); | |
3856 | if (stat < 0) | |
3857 | return stat; | |
3858 | ||
3859 | strcpy (vms_file_written, to_esn); | |
3860 | ||
3861 | to_fab.fab$l_fna = vms_file_written; /* this points to the versionless name */ | |
3862 | to_fab.fab$b_fns = strlen (vms_file_written); | |
3863 | ||
3864 | /* Now set the file protection to the correct value */ | |
3865 | sys$open (&to_fab, 0, 0); /* This fills in the nam$w_fid fields */ | |
3866 | ||
3867 | /* Copy these fields into the fib */ | |
3868 | fib.fib$r_fid_overlay.fib$w_fid[0] = to_nam.nam$w_fid[0]; | |
3869 | fib.fib$r_fid_overlay.fib$w_fid[1] = to_nam.nam$w_fid[1]; | |
3870 | fib.fib$r_fid_overlay.fib$w_fid[2] = to_nam.nam$w_fid[2]; | |
3871 | ||
3872 | sys$close (&to_fab, 0, 0); | |
3873 | ||
3874 | stat = sys$assign (&disk, &chan, 0, 0); /* open a channel to the disk */ | |
3875 | if (!stat) | |
3876 | lib$signal (stat); | |
3877 | stat = sys$qiow (0, chan, IO$_MODIFY, iosb, 0, 0, &fib_d, | |
3878 | 0, 0, 0, &fib_attr, 0); | |
3879 | if (!stat) | |
3880 | lib$signal (stat); | |
3881 | stat = sys$dassgn (chan); | |
3882 | if (!stat) | |
3883 | lib$signal (stat); | |
0137dbf7 | 3884 | strcpy (vms_file_written, to_esn); /* We will write this to the terminal*/ |
86a5659e JB |
3885 | return 0; |
3886 | } | |
3887 | ||
3888 | link (file, new) | |
3889 | char * file, * new; | |
3890 | { | |
3891 | register status; | |
3892 | struct FAB fab; | |
3893 | struct NAM nam; | |
3894 | unsigned short fid[3]; | |
3895 | char esa[NAM$C_MAXRSS]; | |
3896 | ||
3897 | fab = cc$rms_fab; | |
3898 | fab.fab$l_fop = FAB$M_OFP; | |
3899 | fab.fab$l_fna = file; | |
3900 | fab.fab$b_fns = strlen (file); | |
3901 | fab.fab$l_nam = &nam; | |
3902 | ||
3903 | nam = cc$rms_nam; | |
3904 | nam.nam$l_esa = esa; | |
3905 | nam.nam$b_ess = NAM$C_MAXRSS; | |
3906 | ||
3907 | status = SYS$PARSE (&fab); | |
3908 | if ((status & 1) == 0) | |
3909 | { | |
3910 | errno = EVMSERR; | |
3911 | vaxc$errno = status; | |
3912 | return -1; | |
3913 | } | |
3914 | status = SYS$SEARCH (&fab); | |
3915 | if ((status & 1) == 0) | |
3916 | { | |
3917 | errno = EVMSERR; | |
3918 | vaxc$errno = status; | |
3919 | return -1; | |
3920 | } | |
3921 | ||
3922 | fid[0] = nam.nam$w_fid[0]; | |
3923 | fid[1] = nam.nam$w_fid[1]; | |
3924 | fid[2] = nam.nam$w_fid[2]; | |
3925 | ||
3926 | fab.fab$l_fna = new; | |
3927 | fab.fab$b_fns = strlen (new); | |
3928 | ||
3929 | status = SYS$PARSE (&fab); | |
3930 | if ((status & 1) == 0) | |
3931 | { | |
3932 | errno = EVMSERR; | |
3933 | vaxc$errno = status; | |
3934 | return -1; | |
3935 | } | |
3936 | ||
3937 | nam.nam$w_fid[0] = fid[0]; | |
3938 | nam.nam$w_fid[1] = fid[1]; | |
3939 | nam.nam$w_fid[2] = fid[2]; | |
3940 | ||
3941 | nam.nam$l_esa = nam.nam$l_name; | |
3942 | nam.nam$b_esl = nam.nam$b_name + nam.nam$b_type + nam.nam$b_ver; | |
3943 | ||
3944 | status = SYS$ENTER (&fab); | |
3945 | if ((status & 1) == 0) | |
3946 | { | |
3947 | errno = EVMSERR; | |
3948 | vaxc$errno = status; | |
3949 | return -1; | |
3950 | } | |
3951 | ||
3952 | return 0; | |
3953 | } | |
3954 | ||
3955 | croak (badfunc) | |
3956 | char *badfunc; | |
3957 | { | |
3958 | printf ("%s not yet implemented\r\n", badfunc); | |
3959 | reset_sys_modes (); | |
3960 | exit (1); | |
3961 | } | |
3962 | ||
3963 | long | |
3964 | random () | |
3965 | { | |
3966 | /* Arrange to return a range centered on zero. */ | |
3967 | return rand () - (1 << 30); | |
3968 | } | |
3969 | ||
3970 | srandom (seed) | |
3971 | { | |
3972 | srand (seed); | |
3973 | } | |
3974 | #endif /* VMS */ | |
3975 | \f | |
3976 | #ifdef AIX | |
3977 | ||
3978 | /* Called from init_sys_modes. */ | |
3979 | hft_init () | |
3980 | { | |
3981 | int junk; | |
3982 | ||
3983 | /* If we're not on an HFT we shouldn't do any of this. We determine | |
3984 | if we are on an HFT by trying to get an HFT error code. If this | |
3985 | call fails, we're not on an HFT. */ | |
3986 | #ifdef IBMR2AIX | |
3987 | if (ioctl (0, HFQERROR, &junk) < 0) | |
3988 | return; | |
3989 | #else /* not IBMR2AIX */ | |
3990 | if (ioctl (0, HFQEIO, 0) < 0) | |
3991 | return; | |
3992 | #endif /* not IBMR2AIX */ | |
3993 | ||
3994 | /* On AIX the default hft keyboard mapping uses backspace rather than delete | |
3995 | as the rubout key's ASCII code. Here this is changed. The bug is that | |
3996 | there's no way to determine the old mapping, so in reset_sys_modes | |
3997 | we need to assume that the normal map had been present. Of course, this | |
3998 | code also doesn't help if on a terminal emulator which doesn't understand | |
3999 | HFT VTD's. */ | |
4000 | { | |
4001 | struct hfbuf buf; | |
4002 | struct hfkeymap keymap; | |
4003 | ||
4004 | buf.hf_bufp = (char *)&keymap; | |
4005 | buf.hf_buflen = sizeof (keymap); | |
4006 | keymap.hf_nkeys = 2; | |
4007 | keymap.hfkey[0].hf_kpos = 15; | |
4008 | keymap.hfkey[0].hf_kstate = HFMAPCHAR | HFSHFNONE; | |
4009 | #ifdef IBMR2AIX | |
4010 | keymap.hfkey[0].hf_keyidh = '<'; | |
4011 | #else /* not IBMR2AIX */ | |
4012 | keymap.hfkey[0].hf_page = '<'; | |
4013 | #endif /* not IBMR2AIX */ | |
4014 | keymap.hfkey[0].hf_char = 127; | |
4015 | keymap.hfkey[1].hf_kpos = 15; | |
4016 | keymap.hfkey[1].hf_kstate = HFMAPCHAR | HFSHFSHFT; | |
4017 | #ifdef IBMR2AIX | |
4018 | keymap.hfkey[1].hf_keyidh = '<'; | |
4019 | #else /* not IBMR2AIX */ | |
4020 | keymap.hfkey[1].hf_page = '<'; | |
4021 | #endif /* not IBMR2AIX */ | |
4022 | keymap.hfkey[1].hf_char = 127; | |
4023 | hftctl (0, HFSKBD, &buf); | |
4024 | } | |
4025 | /* The HFT system on AIX doesn't optimize for scrolling, so it's really ugly | |
4026 | at times. */ | |
4027 | line_ins_del_ok = char_ins_del_ok = 0; | |
4028 | } | |
4029 | ||
4030 | /* Reset the rubout key to backspace. */ | |
4031 | ||
4032 | hft_reset () | |
4033 | { | |
4034 | struct hfbuf buf; | |
4035 | struct hfkeymap keymap; | |
4036 | int junk; | |
4037 | ||
4038 | #ifdef IBMR2AIX | |
4039 | if (ioctl (0, HFQERROR, &junk) < 0) | |
4040 | return; | |
4041 | #else /* not IBMR2AIX */ | |
4042 | if (ioctl (0, HFQEIO, 0) < 0) | |
4043 | return; | |
4044 | #endif /* not IBMR2AIX */ | |
4045 | ||
4046 | buf.hf_bufp = (char *)&keymap; | |
4047 | buf.hf_buflen = sizeof (keymap); | |
4048 | keymap.hf_nkeys = 2; | |
4049 | keymap.hfkey[0].hf_kpos = 15; | |
4050 | keymap.hfkey[0].hf_kstate = HFMAPCHAR | HFSHFNONE; | |
4051 | #ifdef IBMR2AIX | |
4052 | keymap.hfkey[0].hf_keyidh = '<'; | |
4053 | #else /* not IBMR2AIX */ | |
4054 | keymap.hfkey[0].hf_page = '<'; | |
4055 | #endif /* not IBMR2AIX */ | |
4056 | keymap.hfkey[0].hf_char = 8; | |
4057 | keymap.hfkey[1].hf_kpos = 15; | |
4058 | keymap.hfkey[1].hf_kstate = HFMAPCHAR | HFSHFSHFT; | |
4059 | #ifdef IBMR2AIX | |
4060 | keymap.hfkey[1].hf_keyidh = '<'; | |
4061 | #else /* not IBMR2AIX */ | |
4062 | keymap.hfkey[1].hf_page = '<'; | |
4063 | #endif /* not IBMR2AIX */ | |
4064 | keymap.hfkey[1].hf_char = 8; | |
4065 | hftctl (0, HFSKBD, &buf); | |
4066 | } | |
4067 | ||
4068 | #endif /* AIX */ |