Commit | Line | Data |
---|---|---|
86a5659e | 1 | /* Interfaces to system-dependent kernel and library entries. |
275464e7 | 2 | Copyright (C) 1985, 1986, 1987, 1988, 1993, 1994, 1995, 1999, 2000, 2001, |
8cabe764 GM |
3 | 2002, 2003, 2004, 2005, 2006, 2007, 2008 |
4 | Free Software Foundation, Inc. | |
86a5659e JB |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
86a5659e | 9 | it under the terms of the GNU General Public License as published by |
9ec0b715 GM |
10 | the Free Software Foundation, either version 3 of the License, or |
11 | (at your option) any later version. | |
86a5659e JB |
12 | |
13 | GNU Emacs is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
9ec0b715 | 19 | along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */ |
86a5659e | 20 | |
4838e624 PJ |
21 | #ifdef HAVE_CONFIG_H |
22 | #include <config.h> | |
23 | #endif | |
86a5659e JB |
24 | |
25 | #include <signal.h> | |
5890e9f7 | 26 | #include <stdio.h> |
86a5659e | 27 | #include <setjmp.h> |
d3eb3bfa DL |
28 | #ifdef HAVE_UNISTD_H |
29 | #include <unistd.h> | |
30 | #endif | |
86a5659e | 31 | #include "lisp.h" |
8296bbf8 DL |
32 | /* Including stdlib.h isn't necessarily enough to get srandom |
33 | declared, e.g. without __USE_XOPEN_EXTENDED with glibc 2. */ | |
34 | #ifdef HAVE_RANDOM | |
ff4c29f4 GM |
35 | #if 0 /* Don't prototype srandom; it takes an unsigned argument on |
36 | some systems, and an unsigned long on others, like FreeBSD | |
37 | 4.1. */ | |
8296bbf8 DL |
38 | extern void srandom P_ ((unsigned int)); |
39 | #endif | |
ff4c29f4 | 40 | #endif |
8296bbf8 | 41 | |
4d395425 EZ |
42 | /* The w32 build defines select stuff in w32.h, which is included by |
43 | sys/select.h (included below). */ | |
44 | #ifndef WINDOWSNT | |
819b8f00 | 45 | #include "sysselect.h" |
4d395425 | 46 | #endif |
819b8f00 | 47 | |
9ac0d9e0 | 48 | #include "blockinput.h" |
86a5659e | 49 | |
fe03522b | 50 | #ifdef WINDOWSNT |
e15b6288 JR |
51 | #define read sys_read |
52 | #define write sys_write | |
fe03522b | 53 | #include <windows.h> |
e36ec798 AI |
54 | #ifndef NULL |
55 | #define NULL 0 | |
56 | #endif | |
fe03522b RS |
57 | #endif /* not WINDOWSNT */ |
58 | ||
986ffb24 JB |
59 | /* Does anyone other than VMS need this? */ |
60 | #ifndef fwrite | |
61 | #define sys_fwrite fwrite | |
62 | #else | |
63 | #undef fwrite | |
64 | #endif | |
65 | ||
86a5659e JB |
66 | #include <sys/types.h> |
67 | #include <sys/stat.h> | |
68 | #include <errno.h> | |
69 | ||
f95c3f91 | 70 | #ifdef HAVE_SETPGID |
2b7e8799 | 71 | #if !defined (USG) || defined (BSD_PGRPS) |
c8875a65 | 72 | #undef setpgrp |
f95c3f91 GM |
73 | #define setpgrp setpgid |
74 | #endif | |
2b7e8799 | 75 | #endif |
f95c3f91 | 76 | |
b05af5d3 PE |
77 | /* Get SI_SRPC_DOMAIN, if it is available. */ |
78 | #ifdef HAVE_SYS_SYSTEMINFO_H | |
79 | #include <sys/systeminfo.h> | |
80 | #endif | |
81 | ||
207bdbdb RS |
82 | #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida, MW Aug 1993 */ |
83 | #include <dos.h> | |
84 | #include "dosfns.h" | |
85 | #include "msdos.h" | |
86 | #include <sys/param.h> | |
15614e61 RS |
87 | |
88 | #if __DJGPP__ > 1 | |
89 | extern int etext; | |
90 | extern unsigned start __asm__ ("start"); | |
91 | #endif | |
207bdbdb RS |
92 | #endif |
93 | ||
e36ec798 | 94 | #ifndef USE_CRT_DLL |
9ee9af7a | 95 | #ifndef errno |
86a5659e | 96 | extern int errno; |
9ee9af7a | 97 | #endif |
e36ec798 | 98 | #endif |
86a5659e | 99 | |
bb4bc8e2 RM |
100 | #ifdef VMS |
101 | #include <rms.h> | |
102 | #include <ttdef.h> | |
103 | #include <tt2def.h> | |
104 | #include <iodef.h> | |
105 | #include <ssdef.h> | |
106 | #include <descrip.h> | |
107 | #include <fibdef.h> | |
108 | #include <atrdef.h> | |
109 | #include <ctype.h> | |
110 | #include <string.h> | |
111 | #ifdef __GNUC__ | |
112 | #include <sys/file.h> | |
113 | #else | |
114 | #include <file.h> | |
115 | #endif | |
116 | #undef F_SETFL | |
117 | #ifndef RAB$C_BID | |
118 | #include <rab.h> | |
119 | #endif | |
fe03522b | 120 | #define MAXIOSIZE (32 * PAGESIZE) /* Don't I/O more than 32 blocks at a time */ |
bb4bc8e2 RM |
121 | #endif /* VMS */ |
122 | ||
7ce1c4de RS |
123 | #ifndef VMS |
124 | #include <sys/file.h> | |
125 | #endif /* not VMS */ | |
126 | ||
612221ab | 127 | #ifdef HAVE_FCNTL_H |
bb4bc8e2 RM |
128 | #include <fcntl.h> |
129 | #endif | |
86a5659e | 130 | |
207bdbdb | 131 | #ifndef MSDOS |
86a5659e | 132 | #include <sys/ioctl.h> |
207bdbdb | 133 | #endif |
2a633456 | 134 | |
e04a4e0d | 135 | #include "systty.h" |
94c8642a | 136 | #include "syswait.h" |
86a5659e | 137 | |
86a5659e JB |
138 | #ifdef BROKEN_TIOCGWINSZ |
139 | #undef TIOCGWINSZ | |
8dca3179 | 140 | #undef TIOCSWINSZ |
86a5659e JB |
141 | #endif |
142 | ||
e39a993c | 143 | #if defined (USG) |
86a5659e | 144 | #include <sys/utsname.h> |
86a5659e | 145 | #include <memory.h> |
e39a993c | 146 | #if defined (TIOCGWINSZ) |
86a5659e JB |
147 | #ifdef NEED_SIOCTL |
148 | #include <sys/sioctl.h> | |
149 | #endif | |
150 | #ifdef NEED_PTEM_H | |
151 | #include <sys/stream.h> | |
152 | #include <sys/ptem.h> | |
153 | #endif | |
e39a993c DN |
154 | #endif /* TIOCGWINSZ */ |
155 | #endif /* USG */ | |
86a5659e | 156 | |
86a5659e JB |
157 | extern int quit_char; |
158 | ||
e36ec798 | 159 | #include "keyboard.h" |
0137dbf7 | 160 | #include "frame.h" |
86a5659e JB |
161 | #include "window.h" |
162 | #include "termhooks.h" | |
163 | #include "termchar.h" | |
164 | #include "termopts.h" | |
165 | #include "dispextern.h" | |
166 | #include "process.h" | |
0a125897 | 167 | #include "cm.h" /* for reset_sys_modes */ |
86a5659e | 168 | |
d888760c GM |
169 | /* For serial_configure() and serial_open() */ |
170 | extern Lisp_Object QCport, QCspeed, QCprocess; | |
171 | extern Lisp_Object QCbytesize, QCstopbits, QCparity, Qodd, Qeven; | |
172 | extern Lisp_Object QCflowcontrol, Qhw, Qsw, QCsummary; | |
173 | ||
fe03522b RS |
174 | #ifdef WINDOWSNT |
175 | #include <direct.h> | |
176 | /* In process.h which conflicts with the local copy. */ | |
177 | #define _P_WAIT 0 | |
178 | int _CRTAPI1 _spawnlp (int, const char *, const char *, ...); | |
179 | int _CRTAPI1 _getpid (void); | |
b6682dd9 | 180 | extern char *getwd (char *); |
fe03522b RS |
181 | #endif |
182 | ||
86a5659e JB |
183 | #ifdef NONSYSTEM_DIR_LIBRARY |
184 | #include "ndir.h" | |
185 | #endif /* NONSYSTEM_DIR_LIBRARY */ | |
186 | ||
91bac16a JB |
187 | #include "syssignal.h" |
188 | #include "systime.h" | |
d79998bc KH |
189 | #ifdef HAVE_UTIME_H |
190 | #include <utime.h> | |
191 | #endif | |
192 | ||
193 | #ifndef HAVE_UTIMES | |
194 | #ifndef HAVE_STRUCT_UTIMBUF | |
195 | /* We want to use utime rather than utimes, but we couldn't find the | |
196 | structure declaration. We'll use the traditional one. */ | |
197 | struct utimbuf { | |
198 | long actime; | |
199 | long modtime; | |
200 | }; | |
201 | #endif | |
202 | #endif | |
86a5659e | 203 | |
a00d5589 RS |
204 | /* LPASS8 is new in 4.3, and makes cbreak mode provide all 8 bits. */ |
205 | #ifndef LPASS8 | |
206 | #define LPASS8 0 | |
207 | #endif | |
208 | ||
209 | #ifdef BSD4_1 | |
210 | #define LNOFLSH 0100000 | |
211 | #endif | |
212 | ||
86a5659e JB |
213 | static int baud_convert[] = |
214 | #ifdef BAUD_CONVERT | |
215 | BAUD_CONVERT; | |
216 | #else | |
217 | { | |
218 | 0, 50, 75, 110, 135, 150, 200, 300, 600, 1200, | |
219 | 1800, 2400, 4800, 9600, 19200, 38400 | |
220 | }; | |
221 | #endif | |
222 | ||
f0d21750 GM |
223 | #ifdef HAVE_SPEED_T |
224 | #include <termios.h> | |
f0d21750 | 225 | #else |
ba5971b3 | 226 | #if defined (HAVE_LIBNCURSES) && ! defined (NCURSES_OSPEED_T) |
ba5971b3 | 227 | #else |
8a2a6032 | 228 | #if defined (HAVE_TERMIOS_H) && defined (GNU_LINUX) |
515b04d0 | 229 | #include <termios.h> |
f2361c60 | 230 | #endif |
ba5971b3 | 231 | #endif |
f0d21750 | 232 | #endif |
86a5659e | 233 | |
5bdd7bdd GM |
234 | int emacs_ospeed; |
235 | ||
01d09305 | 236 | void croak P_ ((char *)) NO_RETURN; |
b9c4113e | 237 | |
6d0d20a1 | 238 | #ifdef AIXHFT |
28d7d09f KL |
239 | void hft_init P_ ((struct tty_display_info *)); |
240 | void hft_reset P_ ((struct tty_display_info *)); | |
6d0d20a1 | 241 | #endif |
b9c4113e | 242 | |
89723395 GM |
243 | /* Temporary used by `sigblock' when defined in terms of signprocmask. */ |
244 | ||
245 | SIGMASKTYPE sigprocmask_set; | |
246 | ||
f78f1a83 | 247 | |
3480d92b | 248 | #if !defined (HAVE_GET_CURRENT_DIR_NAME) || defined (BROKEN_GET_CURRENT_DIR_NAME) |
f78f1a83 | 249 | |
b6682dd9 | 250 | /* Return the current working directory. Returns NULL on errors. |
f78f1a83 EZ |
251 | Any other returned value must be freed with free. This is used |
252 | only when get_current_dir_name is not defined on the system. */ | |
253 | char* | |
254 | get_current_dir_name () | |
255 | { | |
256 | char *buf; | |
257 | char *pwd; | |
258 | struct stat dotstat, pwdstat; | |
259 | /* If PWD is accurate, use it instead of calling getwd. PWD is | |
260 | sometimes a nicer name, and using it may avoid a fatal error if a | |
261 | parent directory is searchable but not readable. */ | |
262 | if ((pwd = getenv ("PWD")) != 0 | |
263 | && (IS_DIRECTORY_SEP (*pwd) || (*pwd && IS_DEVICE_SEP (pwd[1]))) | |
264 | && stat (pwd, &pwdstat) == 0 | |
265 | && stat (".", &dotstat) == 0 | |
266 | && dotstat.st_ino == pwdstat.st_ino | |
267 | && dotstat.st_dev == pwdstat.st_dev | |
268 | #ifdef MAXPATHLEN | |
269 | && strlen (pwd) < MAXPATHLEN | |
270 | #endif | |
271 | ) | |
272 | { | |
273 | buf = (char *) malloc (strlen (pwd) + 1); | |
274 | if (!buf) | |
275 | return NULL; | |
276 | strcpy (buf, pwd); | |
277 | } | |
278 | #ifdef HAVE_GETCWD | |
279 | else | |
280 | { | |
281 | size_t buf_size = 1024; | |
b6682dd9 | 282 | buf = (char *) malloc (buf_size); |
f78f1a83 EZ |
283 | if (!buf) |
284 | return NULL; | |
285 | for (;;) | |
286 | { | |
287 | if (getcwd (buf, buf_size) == buf) | |
288 | break; | |
289 | if (errno != ERANGE) | |
290 | { | |
291 | int tmp_errno = errno; | |
292 | free (buf); | |
293 | errno = tmp_errno; | |
294 | return NULL; | |
295 | } | |
296 | buf_size *= 2; | |
297 | buf = (char *) realloc (buf, buf_size); | |
298 | if (!buf) | |
299 | return NULL; | |
300 | } | |
301 | } | |
302 | #else | |
303 | else | |
304 | { | |
305 | /* We need MAXPATHLEN here. */ | |
306 | buf = (char *) malloc (MAXPATHLEN + 1); | |
307 | if (!buf) | |
308 | return NULL; | |
309 | if (getwd (buf) == NULL) | |
310 | { | |
311 | int tmp_errno = errno; | |
312 | free (buf); | |
313 | errno = tmp_errno; | |
314 | return NULL; | |
315 | } | |
316 | } | |
317 | #endif | |
318 | return buf; | |
319 | } | |
320 | #endif | |
321 | ||
64e971c3 | 322 | \f |
9628b887 | 323 | /* Discard pending input on all input descriptors. */ |
91bac16a | 324 | |
08633194 | 325 | void |
86a5659e JB |
326 | discard_tty_input () |
327 | { | |
fe03522b | 328 | #ifndef WINDOWSNT |
91bac16a | 329 | struct emacs_tty buf; |
86a5659e JB |
330 | |
331 | if (noninteractive) | |
332 | return; | |
333 | ||
86a5659e JB |
334 | #ifdef VMS |
335 | end_kbd_input (); | |
0b0d3e0b | 336 | SYS$QIOW (0, fileno (CURTTY()->input), IO$_READVBLK|IO$M_PURGE, input_iosb, 0, 0, |
91bac16a | 337 | &buf.main, 0, 0, terminator_mask, 0, 0); |
86a5659e JB |
338 | queue_kbd_input (); |
339 | #else /* not VMS */ | |
fe03522b | 340 | #ifdef MSDOS /* Demacs 1.1.1 91/10/16 HIRANO Satoshi */ |
207bdbdb | 341 | while (dos_keyread () != -1) |
fe03522b | 342 | ; |
207bdbdb | 343 | #else /* not MSDOS */ |
9628b887 | 344 | { |
28d7d09f | 345 | struct tty_display_info *tty; |
9628b887 KL |
346 | for (tty = tty_list; tty; tty = tty->next) |
347 | { | |
0b0d3e0b KL |
348 | if (tty->input) /* Is the device suspended? */ |
349 | { | |
350 | EMACS_GET_TTY (fileno (tty->input), &buf); | |
351 | EMACS_SET_TTY (fileno (tty->input), &buf, 0); | |
352 | } | |
9628b887 KL |
353 | } |
354 | } | |
207bdbdb | 355 | #endif /* not MSDOS */ |
86a5659e | 356 | #endif /* not VMS */ |
fe03522b | 357 | #endif /* not WINDOWSNT */ |
86a5659e JB |
358 | } |
359 | ||
16c290d8 | 360 | \f |
86a5659e JB |
361 | #ifdef SIGTSTP |
362 | ||
64e971c3 | 363 | /* Arrange for character C to be read as the next input from |
16c290d8 KL |
364 | the terminal. |
365 | XXX What if we have multiple ttys? | |
366 | */ | |
64e971c3 | 367 | |
dfcf069d | 368 | void |
0c2338d8 | 369 | stuff_char (char c) |
86a5659e | 370 | { |
428a555e | 371 | if (! FRAME_TERMCAP_P (SELECTED_FRAME ())) |
23dab951 RS |
372 | return; |
373 | ||
86a5659e JB |
374 | /* Should perhaps error if in batch mode */ |
375 | #ifdef TIOCSTI | |
0b0d3e0b | 376 | ioctl (fileno (CURTTY()->input), TIOCSTI, &c); |
86a5659e | 377 | #else /* no TIOCSTI */ |
71f06467 | 378 | error ("Cannot stuff terminal input characters in this version of Unix"); |
86a5659e JB |
379 | #endif /* no TIOCSTI */ |
380 | } | |
381 | ||
382 | #endif /* SIGTSTP */ | |
64e971c3 | 383 | \f |
08633194 | 384 | void |
16c290d8 | 385 | init_baud_rate (int fd) |
86a5659e | 386 | { |
86a5659e | 387 | if (noninteractive) |
5bdd7bdd | 388 | emacs_ospeed = 0; |
86a5659e JB |
389 | else |
390 | { | |
fe03522b | 391 | #ifdef DOS_NT |
5bdd7bdd | 392 | emacs_ospeed = 15; |
fe03522b | 393 | #else /* not DOS_NT */ |
86a5659e | 394 | #ifdef VMS |
91bac16a JB |
395 | struct sensemode sg; |
396 | ||
16c290d8 | 397 | SYS$QIOW (0, fd, IO$_SENSEMODE, &sg, 0, 0, |
86a5659e | 398 | &sg.class, 12, 0, 0, 0, 0 ); |
5bdd7bdd | 399 | emacs_ospeed = sg.xmit_baud; |
91bac16a | 400 | #else /* not VMS */ |
e04a4e0d JB |
401 | #ifdef HAVE_TERMIOS |
402 | struct termios sg; | |
91bac16a | 403 | |
71f06467 | 404 | sg.c_cflag = B9600; |
16c290d8 | 405 | tcgetattr (fd, &sg); |
5bdd7bdd | 406 | emacs_ospeed = cfgetospeed (&sg); |
e04a4e0d JB |
407 | #else /* neither VMS nor TERMIOS */ |
408 | #ifdef HAVE_TERMIO | |
409 | struct termio sg; | |
91bac16a | 410 | |
71f06467 | 411 | sg.c_cflag = B9600; |
e04a4e0d | 412 | #ifdef HAVE_TCATTR |
16c290d8 | 413 | tcgetattr (fd, &sg); |
e04a4e0d | 414 | #else |
16c290d8 | 415 | ioctl (fd, TCGETA, &sg); |
e04a4e0d | 416 | #endif |
5bdd7bdd | 417 | emacs_ospeed = sg.c_cflag & CBAUD; |
e04a4e0d | 418 | #else /* neither VMS nor TERMIOS nor TERMIO */ |
91bac16a | 419 | struct sgttyb sg; |
177c0ea7 | 420 | |
91bac16a | 421 | sg.sg_ospeed = B9600; |
16c290d8 | 422 | if (ioctl (fd, TIOCGETP, &sg) < 0) |
d7272cff | 423 | abort (); |
5bdd7bdd | 424 | emacs_ospeed = sg.sg_ospeed; |
91bac16a | 425 | #endif /* not HAVE_TERMIO */ |
e04a4e0d | 426 | #endif /* not HAVE_TERMIOS */ |
86a5659e | 427 | #endif /* not VMS */ |
fe03522b | 428 | #endif /* not DOS_NT */ |
86a5659e | 429 | } |
177c0ea7 | 430 | |
5bdd7bdd GM |
431 | baud_rate = (emacs_ospeed < sizeof baud_convert / sizeof baud_convert[0] |
432 | ? baud_convert[emacs_ospeed] : 9600); | |
86a5659e JB |
433 | if (baud_rate == 0) |
434 | baud_rate = 1200; | |
435 | } | |
436 | ||
16c290d8 | 437 | \f |
86a5659e | 438 | /*ARGSUSED*/ |
dfcf069d | 439 | void |
86a5659e JB |
440 | set_exclusive_use (fd) |
441 | int fd; | |
442 | { | |
443 | #ifdef FIOCLEX | |
444 | ioctl (fd, FIOCLEX, 0); | |
445 | #endif | |
446 | /* Ok to do nothing if this feature does not exist */ | |
447 | } | |
64e971c3 | 448 | \f |
86a5659e JB |
449 | #ifndef subprocesses |
450 | ||
451 | wait_without_blocking () | |
452 | { | |
2a633456 | 453 | #ifdef BSD_SYSTEM |
86a5659e JB |
454 | wait3 (0, WNOHANG | WUNTRACED, 0); |
455 | #else | |
456 | croak ("wait_without_blocking"); | |
457 | #endif | |
458 | synch_process_alive = 0; | |
459 | } | |
460 | ||
461 | #endif /* not subprocesses */ | |
462 | ||
463 | int wait_debugging; /* Set nonzero to make following function work under dbx | |
fe03522b | 464 | (at least for bsd). */ |
86a5659e JB |
465 | |
466 | SIGTYPE | |
467 | wait_for_termination_signal () | |
468 | {} | |
469 | ||
470 | /* Wait for subprocess with process id `pid' to terminate and | |
471 | make sure it will get eliminated (not remain forever as a zombie) */ | |
472 | ||
08633194 | 473 | void |
86a5659e JB |
474 | wait_for_termination (pid) |
475 | int pid; | |
476 | { | |
477 | while (1) | |
478 | { | |
479 | #ifdef subprocesses | |
480 | #ifdef VMS | |
481 | int status; | |
482 | ||
986ffb24 | 483 | status = SYS$FORCEX (&pid, 0, 0); |
86a5659e JB |
484 | break; |
485 | #else /* not VMS */ | |
2a633456 | 486 | #if defined (BSD_SYSTEM) || (defined (HPUX) && !defined (HPUX_5)) |
4c8975ad RS |
487 | /* Note that kill returns -1 even if the process is just a zombie now. |
488 | But inevitably a SIGCHLD interrupt should be generated | |
489 | and child_sig will do wait3 and make the process go away. */ | |
490 | /* There is some indication that there is a bug involved with | |
491 | termination of subprocesses, perhaps involving a kernel bug too, | |
492 | but no idea what it is. Just as a hunch we signal SIGCHLD to see | |
493 | if that causes the problem to go away or get worse. */ | |
494 | sigsetmask (sigmask (SIGCHLD)); | |
495 | if (0 > kill (pid, 0)) | |
fe03522b | 496 | { |
4c8975ad RS |
497 | sigsetmask (SIGEMPTYMASK); |
498 | kill (getpid (), SIGCHLD); | |
499 | break; | |
500 | } | |
501 | if (wait_debugging) | |
502 | sleep (1); | |
503 | else | |
504 | sigpause (SIGEMPTYMASK); | |
2a633456 | 505 | #else /* not BSD_SYSTEM, and not HPUX version >= 6 */ |
8a2a6032 | 506 | #ifdef POSIX_SIGNALS /* would this work for GNU/Linux as well? */ |
9ab714c7 | 507 | sigblock (sigmask (SIGCHLD)); |
59957f85 GM |
508 | errno = 0; |
509 | if (kill (pid, 0) == -1 && errno == ESRCH) | |
9ab714c7 RS |
510 | { |
511 | sigunblock (sigmask (SIGCHLD)); | |
512 | break; | |
513 | } | |
ac3ac859 | 514 | |
0fdcb867 | 515 | sigsuspend (&empty_mask); |
9ab714c7 | 516 | #else /* not POSIX_SIGNALS */ |
4c8975ad RS |
517 | #ifdef HAVE_SYSV_SIGPAUSE |
518 | sighold (SIGCHLD); | |
519 | if (0 > kill (pid, 0)) | |
520 | { | |
521 | sigrelse (SIGCHLD); | |
522 | break; | |
523 | } | |
524 | sigpause (SIGCHLD); | |
525 | #else /* not HAVE_SYSV_SIGPAUSE */ | |
fe03522b RS |
526 | #ifdef WINDOWSNT |
527 | wait (0); | |
528 | break; | |
529 | #else /* not WINDOWSNT */ | |
4c8975ad | 530 | if (0 > kill (pid, 0)) |
86a5659e | 531 | break; |
4c8975ad RS |
532 | /* Using sleep instead of pause avoids timing error. |
533 | If the inferior dies just before the sleep, | |
534 | we lose just one second. */ | |
535 | sleep (1); | |
fe03522b | 536 | #endif /* not WINDOWSNT */ |
4c8975ad | 537 | #endif /* not HAVE_SYSV_SIGPAUSE */ |
9ab714c7 | 538 | #endif /* not POSIX_SIGNALS */ |
2a633456 | 539 | #endif /* not BSD_SYSTEM, and not HPUX version >= 6 */ |
86a5659e JB |
540 | #endif /* not VMS */ |
541 | #else /* not subprocesses */ | |
15614e61 RS |
542 | #if __DJGPP__ > 1 |
543 | break; | |
544 | #else /* not __DJGPP__ > 1 */ | |
86a5659e JB |
545 | #ifndef BSD4_1 |
546 | if (kill (pid, 0) < 0) | |
547 | break; | |
548 | wait (0); | |
549 | #else /* BSD4_1 */ | |
550 | int status; | |
551 | status = wait (0); | |
552 | if (status == pid || status == -1) | |
553 | break; | |
554 | #endif /* BSD4_1 */ | |
15614e61 | 555 | #endif /* not __DJGPP__ > 1*/ |
86a5659e JB |
556 | #endif /* not subprocesses */ |
557 | } | |
558 | } | |
559 | ||
560 | #ifdef subprocesses | |
561 | ||
562 | /* | |
563 | * flush any pending output | |
564 | * (may flush input as well; it does not matter the way we use it) | |
565 | */ | |
177c0ea7 | 566 | |
08633194 | 567 | void |
86a5659e JB |
568 | flush_pending_output (channel) |
569 | int channel; | |
570 | { | |
571 | #ifdef HAVE_TERMIOS | |
572 | /* If we try this, we get hit with SIGTTIN, because | |
573 | the child's tty belongs to the child's pgrp. */ | |
574 | #else | |
575 | #ifdef TCFLSH | |
576 | ioctl (channel, TCFLSH, 1); | |
577 | #else | |
578 | #ifdef TIOCFLUSH | |
579 | int zero = 0; | |
580 | /* 3rd arg should be ignored | |
581 | but some 4.2 kernels actually want the address of an int | |
582 | and nonzero means something different. */ | |
583 | ioctl (channel, TIOCFLUSH, &zero); | |
584 | #endif | |
585 | #endif | |
586 | #endif | |
587 | } | |
64e971c3 | 588 | \f |
86a5659e JB |
589 | #ifndef VMS |
590 | /* Set up the terminal at the other end of a pseudo-terminal that | |
591 | we will be controlling an inferior through. | |
592 | It should not echo or do line-editing, since that is done | |
593 | in Emacs. No padding needed for insertion into an Emacs buffer. */ | |
594 | ||
08633194 | 595 | void |
86a5659e JB |
596 | child_setup_tty (out) |
597 | int out; | |
598 | { | |
fe03522b | 599 | #ifndef DOS_NT |
91bac16a JB |
600 | struct emacs_tty s; |
601 | ||
602 | EMACS_GET_TTY (out, &s); | |
86a5659e | 603 | |
31be8d24 | 604 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
91bac16a JB |
605 | s.main.c_oflag |= OPOST; /* Enable output postprocessing */ |
606 | s.main.c_oflag &= ~ONLCR; /* Disable map of NL to CR-NL on output */ | |
9d4e5eea | 607 | #ifdef NLDLY |
07cfc4e7 GM |
608 | /* http://lists.gnu.org/archive/html/emacs-devel/2008-05/msg00406.html |
609 | Some versions of GNU Hurd do not have FFDLY? */ | |
610 | #ifdef FFDLY | |
91bac16a JB |
611 | s.main.c_oflag &= ~(NLDLY|CRDLY|TABDLY|BSDLY|VTDLY|FFDLY); |
612 | /* No output delays */ | |
07cfc4e7 GM |
613 | #else |
614 | s.main.c_oflag &= ~(NLDLY|CRDLY|TABDLY|BSDLY|VTDLY); | |
615 | /* No output delays */ | |
616 | #endif | |
9d4e5eea | 617 | #endif |
91bac16a JB |
618 | s.main.c_lflag &= ~ECHO; /* Disable echo */ |
619 | s.main.c_lflag |= ISIG; /* Enable signals */ | |
2ea99a1e | 620 | #if 0 /* This causes bugs in (for instance) telnet to certain sites. */ |
402c9a51 GM |
621 | s.main.c_iflag &= ~ICRNL; /* Disable map of CR to NL on input */ |
622 | #ifdef INLCR /* Just being cautious, since I can't check how | |
623 | widespread INLCR is--rms. */ | |
624 | s.main.c_iflag &= ~INLCR; /* Disable map of NL to CR on input */ | |
625 | #endif | |
5a04bfa9 | 626 | #endif |
9d4e5eea RS |
627 | #ifdef IUCLC |
628 | s.main.c_iflag &= ~IUCLC; /* Disable downcasing on input. */ | |
629 | #endif | |
f7097b2a RS |
630 | #ifdef ISTRIP |
631 | s.main.c_iflag &= ~ISTRIP; /* don't strip 8th bit on input */ | |
632 | #endif | |
23e4c8be | 633 | #ifdef OLCUC |
9d4e5eea RS |
634 | s.main.c_oflag &= ~OLCUC; /* Disable upcasing on output. */ |
635 | #endif | |
f7097b2a | 636 | s.main.c_oflag &= ~TAB3; /* Disable tab expansion */ |
1bf96fb5 | 637 | s.main.c_cflag = (s.main.c_cflag & ~CSIZE) | CS8; /* Don't strip 8th bit */ |
91bac16a | 638 | #if 0 |
eb8c3be9 | 639 | /* Said to be unnecessary: */ |
91bac16a JB |
640 | s.main.c_cc[VMIN] = 1; /* minimum number of characters to accept */ |
641 | s.main.c_cc[VTIME] = 0; /* wait forever for at least 1 character */ | |
642 | #endif | |
643 | ||
644 | s.main.c_lflag |= ICANON; /* Enable erase/kill and eof processing */ | |
645 | s.main.c_cc[VEOF] = 04; /* insure that EOF is Control-D */ | |
441f6399 RS |
646 | s.main.c_cc[VERASE] = CDISABLE; /* disable erase processing */ |
647 | s.main.c_cc[VKILL] = CDISABLE; /* disable kill processing */ | |
91bac16a | 648 | |
86a5659e | 649 | #ifdef HPUX |
91bac16a | 650 | s.main.c_cflag = (s.main.c_cflag & ~CBAUD) | B9600; /* baud rate sanity */ |
86a5659e | 651 | #endif /* HPUX */ |
91bac16a | 652 | |
dfe598b5 RS |
653 | #ifdef SIGNALS_VIA_CHARACTERS |
654 | /* the QUIT and INTR character are used in process_send_signal | |
655 | so set them here to something useful. */ | |
fa51fa32 | 656 | if (s.main.c_cc[VQUIT] == CDISABLE) |
dfe598b5 | 657 | s.main.c_cc[VQUIT] = '\\'&037; /* Control-\ */ |
fa51fa32 | 658 | if (s.main.c_cc[VINTR] == CDISABLE) |
dfe598b5 RS |
659 | s.main.c_cc[VINTR] = 'C'&037; /* Control-C */ |
660 | #endif /* not SIGNALS_VIA_CHARACTERS */ | |
661 | ||
86a5659e JB |
662 | #ifdef AIX |
663 | /* AIX enhanced edit loses NULs, so disable it */ | |
664 | #ifndef IBMR2AIX | |
91bac16a JB |
665 | s.main.c_line = 0; |
666 | s.main.c_iflag &= ~ASCEDIT; | |
86a5659e JB |
667 | #endif |
668 | /* Also, PTY overloads NUL and BREAK. | |
669 | don't ignore break, but don't signal either, so it looks like NUL. */ | |
91bac16a JB |
670 | s.main.c_iflag &= ~IGNBRK; |
671 | s.main.c_iflag &= ~BRKINT; | |
dfe598b5 RS |
672 | /* rms: Formerly it set s.main.c_cc[VINTR] to 0377 here |
673 | unconditionally. Then a SIGNALS_VIA_CHARACTERS conditional | |
674 | would force it to 0377. That looks like duplicated code. */ | |
675 | #ifndef SIGNALS_VIA_CHARACTERS | |
e6cc3307 | 676 | /* QUIT and INTR work better as signals, so disable character forms */ |
fa51fa32 KS |
677 | s.main.c_cc[VQUIT] = CDISABLE; |
678 | s.main.c_cc[VINTR] = CDISABLE; | |
91bac16a | 679 | s.main.c_lflag &= ~ISIG; |
e6cc3307 | 680 | #endif /* no TIOCGPGRP or no TIOCGLTC or no TIOCGETC */ |
fa51fa32 | 681 | s.main.c_cc[VEOL] = CDISABLE; |
91bac16a | 682 | s.main.c_cflag = (s.main.c_cflag & ~CBAUD) | B9600; /* baud rate sanity */ |
86a5659e JB |
683 | #endif /* AIX */ |
684 | ||
685 | #else /* not HAVE_TERMIO */ | |
91bac16a JB |
686 | |
687 | s.main.sg_flags &= ~(ECHO | CRMOD | ANYP | ALLDELAY | RAW | LCASE | |
688 | | CBREAK | TANDEM); | |
a00d5589 | 689 | s.main.sg_flags |= LPASS8; |
91bac16a JB |
690 | s.main.sg_erase = 0377; |
691 | s.main.sg_kill = 0377; | |
1bf96fb5 | 692 | s.lmode = LLITOUT | s.lmode; /* Don't strip 8th bit */ |
91bac16a | 693 | |
86a5659e JB |
694 | #endif /* not HAVE_TERMIO */ |
695 | ||
91bac16a | 696 | EMACS_SET_TTY (out, &s, 0); |
86a5659e JB |
697 | |
698 | #ifdef BSD4_1 | |
699 | if (interrupt_input) | |
0a125897 | 700 | reset_sigio (0); |
86a5659e | 701 | #endif /* BSD4_1 */ |
fe03522b | 702 | #endif /* not DOS_NT */ |
86a5659e JB |
703 | } |
704 | #endif /* not VMS */ | |
705 | ||
706 | #endif /* subprocesses */ | |
64e971c3 | 707 | \f |
86a5659e JB |
708 | /* Record a signal code and the handler for it. */ |
709 | struct save_signal | |
710 | { | |
711 | int code; | |
35a05cca | 712 | SIGTYPE (*handler) P_ ((int)); |
86a5659e JB |
713 | }; |
714 | ||
35a05cca AS |
715 | static void save_signal_handlers P_ ((struct save_signal *)); |
716 | static void restore_signal_handlers P_ ((struct save_signal *)); | |
717 | ||
86a5659e JB |
718 | /* Suspend the Emacs process; give terminal to its superior. */ |
719 | ||
08633194 | 720 | void |
86a5659e JB |
721 | sys_suspend () |
722 | { | |
723 | #ifdef VMS | |
88191e36 RS |
724 | /* "Foster" parentage allows emacs to return to a subprocess that attached |
725 | to the current emacs as a cheaper than starting a whole new process. This | |
726 | is set up by KEPTEDITOR.COM. */ | |
727 | unsigned long parent_id, foster_parent_id; | |
728 | char *fpid_string; | |
729 | ||
730 | fpid_string = getenv ("EMACS_PARENT_PID"); | |
731 | if (fpid_string != NULL) | |
732 | { | |
733 | sscanf (fpid_string, "%x", &foster_parent_id); | |
734 | if (foster_parent_id != 0) | |
735 | parent_id = foster_parent_id; | |
736 | else | |
737 | parent_id = getppid (); | |
738 | } | |
739 | else | |
740 | parent_id = getppid (); | |
741 | ||
9ac0d9e0 | 742 | xfree (fpid_string); /* On VMS, this was malloc'd */ |
86a5659e | 743 | |
86a5659e JB |
744 | if (parent_id && parent_id != 0xffffffff) |
745 | { | |
746 | SIGTYPE (*oldsig)() = (int) signal (SIGINT, SIG_IGN); | |
747 | int status = LIB$ATTACH (&parent_id) & 1; | |
748 | signal (SIGINT, oldsig); | |
749 | return status; | |
750 | } | |
751 | else | |
752 | { | |
753 | struct { | |
754 | int l; | |
755 | char *a; | |
756 | } d_prompt; | |
757 | d_prompt.l = sizeof ("Emacs: "); /* Our special prompt */ | |
758 | d_prompt.a = "Emacs: "; /* Just a reminder */ | |
986ffb24 | 759 | LIB$SPAWN (0, 0, 0, 0, 0, 0, 0, 0, 0, 0, &d_prompt, 0); |
86a5659e JB |
760 | return 1; |
761 | } | |
762 | return -1; | |
763 | #else | |
c4ea52a6 | 764 | #if defined (SIGTSTP) && !defined (MSDOS) |
86a5659e | 765 | |
5a570e37 | 766 | { |
e89a2cd5 | 767 | int pgrp = EMACS_GETPGRP (0); |
5a570e37 JB |
768 | EMACS_KILLPG (pgrp, SIGTSTP); |
769 | } | |
86a5659e JB |
770 | |
771 | #else /* No SIGTSTP */ | |
772 | #ifdef USG_JOBCTRL /* If you don't know what this is don't mess with it */ | |
773 | ptrace (0, 0, 0, 0); /* set for ptrace - caught by csh */ | |
774 | kill (getpid (), SIGQUIT); | |
775 | ||
776 | #else /* No SIGTSTP or USG_JOBCTRL */ | |
777 | ||
778 | /* On a system where suspending is not implemented, | |
779 | instead fork a subshell and let it talk directly to the terminal | |
780 | while we wait. */ | |
a0932daa KH |
781 | sys_subshell (); |
782 | ||
783 | #endif /* no USG_JOBCTRL */ | |
784 | #endif /* no SIGTSTP */ | |
785 | #endif /* not VMS */ | |
786 | } | |
787 | ||
788 | /* Fork a subshell. */ | |
789 | ||
08633194 | 790 | void |
a0932daa KH |
791 | sys_subshell () |
792 | { | |
793 | #ifndef VMS | |
ad00c243 | 794 | #ifdef DOS_NT /* Demacs 1.1.2 91/10/20 Manabu Higashida */ |
a0932daa KH |
795 | int st; |
796 | char oldwd[MAXPATHLEN+1]; /* Fixed length is safe on MSDOS. */ | |
797 | #endif | |
efa04277 | 798 | int pid; |
86a5659e | 799 | struct save_signal saved_handlers[5]; |
efa04277 RS |
800 | Lisp_Object dir; |
801 | unsigned char *str = 0; | |
802 | int len; | |
86a5659e JB |
803 | |
804 | saved_handlers[0].code = SIGINT; | |
805 | saved_handlers[1].code = SIGQUIT; | |
806 | saved_handlers[2].code = SIGTERM; | |
807 | #ifdef SIGIO | |
808 | saved_handlers[3].code = SIGIO; | |
809 | saved_handlers[4].code = 0; | |
810 | #else | |
811 | saved_handlers[3].code = 0; | |
812 | #endif | |
813 | ||
efa04277 RS |
814 | /* Mentioning current_buffer->buffer would mean including buffer.h, |
815 | which somehow wedges the hp compiler. So instead... */ | |
816 | ||
817 | dir = intern ("default-directory"); | |
0e7e7a58 | 818 | if (NILP (Fboundp (dir))) |
efa04277 RS |
819 | goto xyzzy; |
820 | dir = Fsymbol_value (dir); | |
914e81a2 | 821 | if (!STRINGP (dir)) |
efa04277 RS |
822 | goto xyzzy; |
823 | ||
824 | dir = expand_and_dir_to_file (Funhandled_file_name_directory (dir), Qnil); | |
d5db4077 KR |
825 | str = (unsigned char *) alloca (SCHARS (dir) + 2); |
826 | len = SCHARS (dir); | |
827 | bcopy (SDATA (dir), str, len); | |
efa04277 RS |
828 | if (str[len - 1] != '/') str[len++] = '/'; |
829 | str[len] = 0; | |
830 | xyzzy: | |
831 | ||
ad00c243 | 832 | #ifdef DOS_NT |
7964ba9e | 833 | pid = 0; |
718ca3cf RS |
834 | #if __DJGPP__ > 1 |
835 | save_signal_handlers (saved_handlers); | |
836 | synch_process_alive = 1; | |
837 | #endif /* __DJGPP__ > 1 */ | |
177c0ea7 | 838 | #else |
efa04277 | 839 | pid = vfork (); |
86a5659e JB |
840 | if (pid == -1) |
841 | error ("Can't spawn subshell"); | |
7964ba9e RS |
842 | #endif |
843 | ||
86a5659e JB |
844 | if (pid == 0) |
845 | { | |
7964ba9e | 846 | char *sh = 0; |
86a5659e | 847 | |
ad00c243 | 848 | #ifdef DOS_NT /* MW, Aug 1993 */ |
207bdbdb | 849 | getwd (oldwd); |
7964ba9e RS |
850 | if (sh == 0) |
851 | sh = (char *) egetenv ("SUSPEND"); /* KFS, 1994-12-14 */ | |
207bdbdb | 852 | #endif |
7964ba9e RS |
853 | if (sh == 0) |
854 | sh = (char *) egetenv ("SHELL"); | |
86a5659e JB |
855 | if (sh == 0) |
856 | sh = "sh"; | |
207bdbdb | 857 | |
86a5659e | 858 | /* Use our buffer's default directory for the subshell. */ |
efa04277 | 859 | if (str) |
074c438c | 860 | chdir ((char *) str); |
efa04277 | 861 | |
86a5659e JB |
862 | #ifdef subprocesses |
863 | close_process_descs (); /* Close Emacs's pipes/ptys */ | |
864 | #endif | |
1593c2fe | 865 | |
6f8b4d01 | 866 | #ifdef SET_EMACS_PRIORITY |
1593c2fe | 867 | { |
31ade731 | 868 | extern EMACS_INT emacs_priority; |
1593c2fe | 869 | |
6f8b4d01 | 870 | if (emacs_priority < 0) |
1593c2fe JB |
871 | nice (-emacs_priority); |
872 | } | |
873 | #endif | |
874 | ||
fe03522b | 875 | #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */ |
c0917202 | 876 | { |
48178f9a EZ |
877 | char *epwd = getenv ("PWD"); |
878 | char old_pwd[MAXPATHLEN+1+4]; | |
c0917202 EZ |
879 | |
880 | /* If PWD is set, pass it with corrected value. */ | |
48178f9a | 881 | if (epwd) |
c0917202 | 882 | { |
48178f9a | 883 | strcpy (old_pwd, epwd); |
c0917202 EZ |
884 | if (str[len - 1] == '/') |
885 | str[len - 1] = '\0'; | |
886 | setenv ("PWD", str, 1); | |
887 | } | |
888 | st = system (sh); | |
889 | chdir (oldwd); | |
48178f9a | 890 | if (epwd) |
c0917202 EZ |
891 | putenv (old_pwd); /* restore previous value */ |
892 | } | |
7964ba9e | 893 | #if 0 /* This is also reported if last command executed in subshell failed, KFS */ |
207bdbdb | 894 | if (st) |
fe03522b | 895 | report_file_error ("Can't execute subshell", Fcons (build_string (sh), Qnil)); |
7964ba9e | 896 | #endif |
207bdbdb | 897 | #else /* not MSDOS */ |
fe03522b | 898 | #ifdef WINDOWSNT |
fe03522b RS |
899 | /* Waits for process completion */ |
900 | pid = _spawnlp (_P_WAIT, sh, sh, NULL); | |
ad00c243 | 901 | chdir (oldwd); |
fe03522b RS |
902 | if (pid == -1) |
903 | write (1, "Can't execute subshell", 22); | |
fe03522b | 904 | #else /* not WINDOWSNT */ |
e120ea40 | 905 | execlp (sh, sh, (char *) 0); |
86a5659e JB |
906 | write (1, "Can't execute subshell", 22); |
907 | _exit (1); | |
fe03522b | 908 | #endif /* not WINDOWSNT */ |
207bdbdb | 909 | #endif /* not MSDOS */ |
86a5659e JB |
910 | } |
911 | ||
718ca3cf RS |
912 | /* Do this now if we did not do it before. */ |
913 | #if !defined (MSDOS) || __DJGPP__ == 1 | |
86a5659e | 914 | save_signal_handlers (saved_handlers); |
ffafc793 | 915 | synch_process_alive = 1; |
718ca3cf RS |
916 | #endif |
917 | ||
ad00c243 | 918 | #ifndef DOS_NT |
86a5659e | 919 | wait_for_termination (pid); |
7964ba9e | 920 | #endif |
86a5659e | 921 | restore_signal_handlers (saved_handlers); |
718ca3cf | 922 | synch_process_alive = 0; |
a0932daa | 923 | #endif /* !VMS */ |
86a5659e JB |
924 | } |
925 | ||
35a05cca | 926 | static void |
86a5659e JB |
927 | save_signal_handlers (saved_handlers) |
928 | struct save_signal *saved_handlers; | |
929 | { | |
930 | while (saved_handlers->code) | |
931 | { | |
508b171c | 932 | saved_handlers->handler |
35a05cca | 933 | = (SIGTYPE (*) P_ ((int))) signal (saved_handlers->code, SIG_IGN); |
86a5659e JB |
934 | saved_handlers++; |
935 | } | |
936 | } | |
937 | ||
35a05cca | 938 | static void |
86a5659e JB |
939 | restore_signal_handlers (saved_handlers) |
940 | struct save_signal *saved_handlers; | |
941 | { | |
942 | while (saved_handlers->code) | |
943 | { | |
944 | signal (saved_handlers->code, saved_handlers->handler); | |
945 | saved_handlers++; | |
946 | } | |
947 | } | |
948 | \f | |
4d553a13 KL |
949 | #ifndef SIGIO |
950 | /* If SIGIO is broken, don't do anything. */ | |
951 | void | |
952 | init_sigio (int fd) | |
953 | { | |
954 | } | |
955 | ||
956 | void | |
957 | reset_sigio (int fd) | |
958 | { | |
959 | } | |
960 | ||
961 | void | |
962 | request_sigio (void) | |
963 | { | |
964 | } | |
965 | ||
966 | void | |
967 | unrequest_sigio (void) | |
968 | { | |
969 | } | |
970 | ||
971 | #else | |
86a5659e JB |
972 | #ifdef F_SETFL |
973 | ||
819b8f00 | 974 | int old_fcntl_flags[MAXDESC]; |
86a5659e | 975 | |
08633194 | 976 | void |
23dab951 RS |
977 | init_sigio (fd) |
978 | int fd; | |
86a5659e JB |
979 | { |
980 | #ifdef FASYNC | |
819b8f00 KL |
981 | old_fcntl_flags[fd] = fcntl (fd, F_GETFL, 0) & ~FASYNC; |
982 | fcntl (fd, F_SETFL, old_fcntl_flags[fd] | FASYNC); | |
86a5659e | 983 | #endif |
23dab951 | 984 | interrupts_deferred = 0; |
86a5659e JB |
985 | } |
986 | ||
590034f9 | 987 | void |
0a125897 KL |
988 | reset_sigio (fd) |
989 | int fd; | |
86a5659e | 990 | { |
4d553a13 | 991 | #ifdef FASYNC |
819b8f00 | 992 | fcntl (fd, F_SETFL, old_fcntl_flags[fd]); |
4d553a13 | 993 | #endif |
86a5659e JB |
994 | } |
995 | ||
eb8c3be9 | 996 | #ifdef FASYNC /* F_SETFL does not imply existence of FASYNC */ |
428a555e | 997 | /* XXX Uhm, FASYNC is not used anymore here. */ |
6d8cf830 | 998 | /* XXX Yeah, but you need it for SIGIO, don't you? */ |
86a5659e | 999 | |
08633194 | 1000 | void |
86a5659e JB |
1001 | request_sigio () |
1002 | { | |
6bbba5a6 | 1003 | if (noninteractive) |
23dab951 RS |
1004 | return; |
1005 | ||
86a5659e | 1006 | #ifdef SIGWINCH |
e065a56e | 1007 | sigunblock (sigmask (SIGWINCH)); |
86a5659e | 1008 | #endif |
0a125897 | 1009 | sigunblock (sigmask (SIGIO)); |
86a5659e JB |
1010 | |
1011 | interrupts_deferred = 0; | |
1012 | } | |
1013 | ||
08633194 | 1014 | void |
0a125897 | 1015 | unrequest_sigio (void) |
428a555e | 1016 | { |
6bbba5a6 KL |
1017 | if (noninteractive) |
1018 | return; | |
1019 | ||
1020 | #if 0 /* XXX What's wrong with blocking SIGIO under X? */ | |
1021 | if (x_display_list) | |
23dab951 | 1022 | return; |
428a555e | 1023 | #endif |
6bbba5a6 | 1024 | |
86a5659e | 1025 | #ifdef SIGWINCH |
e065a56e | 1026 | sigblock (sigmask (SIGWINCH)); |
86a5659e | 1027 | #endif |
0a125897 | 1028 | sigblock (sigmask (SIGIO)); |
86a5659e JB |
1029 | interrupts_deferred = 1; |
1030 | } | |
1031 | ||
1032 | #else /* no FASYNC */ | |
feb67dfe | 1033 | #ifndef MSDOS |
25ab68af | 1034 | |
08633194 | 1035 | void |
86a5659e JB |
1036 | request_sigio () |
1037 | { | |
6e5b2385 | 1038 | if (noninteractive || read_socket_hook) |
23dab951 RS |
1039 | return; |
1040 | ||
86a5659e JB |
1041 | croak ("request_sigio"); |
1042 | } | |
177c0ea7 | 1043 | |
08633194 | 1044 | void |
86a5659e JB |
1045 | unrequest_sigio () |
1046 | { | |
6e5b2385 | 1047 | if (noninteractive || read_socket_hook) |
23dab951 RS |
1048 | return; |
1049 | ||
86a5659e JB |
1050 | croak ("unrequest_sigio"); |
1051 | } | |
feb67dfe EZ |
1052 | |
1053 | #endif /* MSDOS */ | |
86a5659e JB |
1054 | #endif /* FASYNC */ |
1055 | #endif /* F_SETFL */ | |
4d553a13 | 1056 | #endif /* SIGIO */ |
86a5659e | 1057 | \f |
9ae8f997 JB |
1058 | /* Saving and restoring the process group of Emacs's terminal. */ |
1059 | ||
0ba73609 | 1060 | #ifdef BSD_PGRPS |
9ae8f997 JB |
1061 | |
1062 | /* The process group of which Emacs was a member when it initially | |
1063 | started. | |
1064 | ||
1065 | If Emacs was in its own process group (i.e. inherited_pgroup == | |
1066 | getpid ()), then we know we're running under a shell with job | |
1067 | control (Emacs would never be run as part of a pipeline). | |
1068 | Everything is fine. | |
1069 | ||
1070 | If Emacs was not in its own process group, then we know we're | |
1071 | running under a shell (or a caller) that doesn't know how to | |
1072 | separate itself from Emacs (like sh). Emacs must be in its own | |
1073 | process group in order to receive SIGIO correctly. In this | |
1074 | situation, we put ourselves in our own pgroup, forcibly set the | |
1075 | tty's pgroup to our pgroup, and make sure to restore and reinstate | |
1076 | the tty's pgroup just like any other terminal setting. If | |
1077 | inherited_group was not the tty's pgroup, then we'll get a | |
1078 | SIGTTmumble when we try to change the tty's pgroup, and a CONT if | |
4edd8a5c KL |
1079 | it goes foreground in the future, which is what should happen. |
1080 | ||
1081 | This variable is initialized in emacs.c. */ | |
9ae8f997 JB |
1082 | int inherited_pgroup; |
1083 | ||
4edd8a5c KL |
1084 | /* Split off the foreground process group to Emacs alone. When we are |
1085 | in the foreground, but not started in our own process group, | |
1086 | redirect the tty device handle FD to point to our own process | |
1087 | group. We need to be in our own process group to receive SIGIO | |
1088 | properly. */ | |
75a8734b | 1089 | static void |
16c290d8 | 1090 | narrow_foreground_group (int fd) |
9ae8f997 JB |
1091 | { |
1092 | int me = getpid (); | |
1093 | ||
4edd8a5c | 1094 | setpgrp (0, inherited_pgroup); |
3453bb3a KL |
1095 | #if 0 |
1096 | /* XXX inherited_pgroup should not be zero here, but GTK seems to | |
1097 | mess this up. */ | |
819b8f00 | 1098 | if (! inherited_pgroup) |
4edd8a5c | 1099 | abort (); /* Should not happen. */ |
3453bb3a | 1100 | #endif |
9ae8f997 | 1101 | if (inherited_pgroup != me) |
4edd8a5c KL |
1102 | EMACS_SET_TTY_PGRP (fd, &me); /* XXX This only works on the controlling tty. */ |
1103 | setpgrp (0, me); | |
9ae8f997 JB |
1104 | } |
1105 | ||
1106 | /* Set the tty to our original foreground group. */ | |
75a8734b | 1107 | static void |
16c290d8 | 1108 | widen_foreground_group (int fd) |
9ae8f997 JB |
1109 | { |
1110 | if (inherited_pgroup != getpid ()) | |
16c290d8 | 1111 | EMACS_SET_TTY_PGRP (fd, &inherited_pgroup); |
4edd8a5c | 1112 | setpgrp (0, inherited_pgroup); |
9ae8f997 JB |
1113 | } |
1114 | ||
0ba73609 | 1115 | #endif /* BSD_PGRPS */ |
9ae8f997 | 1116 | \f |
68936329 JB |
1117 | /* Getting and setting emacs_tty structures. */ |
1118 | ||
1119 | /* Set *TC to the parameters associated with the terminal FD. | |
1120 | Return zero if all's well, or -1 if we ran into an error we | |
1121 | couldn't deal with. */ | |
1122 | int | |
1123 | emacs_get_tty (fd, settings) | |
1124 | int fd; | |
1125 | struct emacs_tty *settings; | |
1126 | { | |
1127 | /* Retrieve the primary parameters - baud rate, character size, etcetera. */ | |
1128 | #ifdef HAVE_TCATTR | |
1129 | /* We have those nifty POSIX tcmumbleattr functions. */ | |
1d9f9f9e | 1130 | bzero (&settings->main, sizeof (settings->main)); |
68936329 JB |
1131 | if (tcgetattr (fd, &settings->main) < 0) |
1132 | return -1; | |
1133 | ||
1134 | #else | |
1135 | #ifdef HAVE_TERMIO | |
1136 | /* The SYSV-style interface? */ | |
1137 | if (ioctl (fd, TCGETA, &settings->main) < 0) | |
1138 | return -1; | |
1139 | ||
1140 | #else | |
1141 | #ifdef VMS | |
1142 | /* Vehemently Monstrous System? :-) */ | |
1143 | if (! (SYS$QIOW (0, fd, IO$_SENSEMODE, settings, 0, 0, | |
1144 | &settings->main.class, 12, 0, 0, 0, 0) | |
1145 | & 1)) | |
1146 | return -1; | |
1147 | ||
1148 | #else | |
fe03522b | 1149 | #ifndef DOS_NT |
68936329 JB |
1150 | /* I give up - I hope you have the BSD ioctls. */ |
1151 | if (ioctl (fd, TIOCGETP, &settings->main) < 0) | |
1152 | return -1; | |
fe03522b | 1153 | #endif /* not DOS_NT */ |
68936329 JB |
1154 | #endif |
1155 | #endif | |
1156 | #endif | |
1157 | ||
1158 | /* Suivant - Do we have to get struct ltchars data? */ | |
50b8cf60 | 1159 | #ifdef HAVE_LTCHARS |
68936329 JB |
1160 | if (ioctl (fd, TIOCGLTC, &settings->ltchars) < 0) |
1161 | return -1; | |
1162 | #endif | |
1163 | ||
1164 | /* How about a struct tchars and a wordful of lmode bits? */ | |
50b8cf60 | 1165 | #ifdef HAVE_TCHARS |
68936329 JB |
1166 | if (ioctl (fd, TIOCGETC, &settings->tchars) < 0 |
1167 | || ioctl (fd, TIOCLGET, &settings->lmode) < 0) | |
1168 | return -1; | |
1169 | #endif | |
1170 | ||
1171 | /* We have survived the tempest. */ | |
1172 | return 0; | |
1173 | } | |
1174 | ||
1175 | ||
1176 | /* Set the parameters of the tty on FD according to the contents of | |
394049ec | 1177 | *SETTINGS. If FLUSHP is non-zero, we discard input. |
68936329 | 1178 | Return 0 if all went well, and -1 if anything failed. */ |
394049ec | 1179 | |
68936329 | 1180 | int |
394049ec | 1181 | emacs_set_tty (fd, settings, flushp) |
68936329 JB |
1182 | int fd; |
1183 | struct emacs_tty *settings; | |
394049ec | 1184 | int flushp; |
68936329 JB |
1185 | { |
1186 | /* Set the primary parameters - baud rate, character size, etcetera. */ | |
1187 | #ifdef HAVE_TCATTR | |
e6cc3307 | 1188 | int i; |
68936329 JB |
1189 | /* We have those nifty POSIX tcmumbleattr functions. |
1190 | William J. Smith <wjs@wiis.wang.com> writes: | |
c4ea52a6 | 1191 | "POSIX 1003.1 defines tcsetattr to return success if it was |
68936329 JB |
1192 | able to perform any of the requested actions, even if some |
1193 | of the requested actions could not be performed. | |
1194 | We must read settings back to ensure tty setup properly. | |
1195 | AIX requires this to keep tty from hanging occasionally." */ | |
eb8c3be9 | 1196 | /* This make sure that we don't loop indefinitely in here. */ |
e6cc3307 | 1197 | for (i = 0 ; i < 10 ; i++) |
394049ec | 1198 | if (tcsetattr (fd, flushp ? TCSAFLUSH : TCSADRAIN, &settings->main) < 0) |
68936329 JB |
1199 | { |
1200 | if (errno == EINTR) | |
1201 | continue; | |
1202 | else | |
1203 | return -1; | |
1204 | } | |
1205 | else | |
1206 | { | |
1207 | struct termios new; | |
1208 | ||
1d9f9f9e | 1209 | bzero (&new, sizeof (new)); |
68936329 JB |
1210 | /* Get the current settings, and see if they're what we asked for. */ |
1211 | tcgetattr (fd, &new); | |
e6cc3307 RS |
1212 | /* We cannot use memcmp on the whole structure here because under |
1213 | * aix386 the termios structure has some reserved field that may | |
1214 | * not be filled in. | |
1215 | */ | |
1216 | if ( new.c_iflag == settings->main.c_iflag | |
1217 | && new.c_oflag == settings->main.c_oflag | |
1218 | && new.c_cflag == settings->main.c_cflag | |
1219 | && new.c_lflag == settings->main.c_lflag | |
c4ea52a6 | 1220 | && memcmp (new.c_cc, settings->main.c_cc, NCCS) == 0) |
68936329 | 1221 | break; |
e6cc3307 RS |
1222 | else |
1223 | continue; | |
68936329 JB |
1224 | } |
1225 | ||
1226 | #else | |
1227 | #ifdef HAVE_TERMIO | |
1228 | /* The SYSV-style interface? */ | |
394049ec | 1229 | if (ioctl (fd, flushp ? TCSETAF : TCSETAW, &settings->main) < 0) |
68936329 JB |
1230 | return -1; |
1231 | ||
1232 | #else | |
1233 | #ifdef VMS | |
1234 | /* Vehemently Monstrous System? :-) */ | |
1235 | if (! (SYS$QIOW (0, fd, IO$_SETMODE, &input_iosb, 0, 0, | |
1236 | &settings->main.class, 12, 0, 0, 0, 0) | |
1237 | & 1)) | |
1238 | return -1; | |
1239 | ||
1240 | #else | |
fe03522b | 1241 | #ifndef DOS_NT |
68936329 | 1242 | /* I give up - I hope you have the BSD ioctls. */ |
394049ec | 1243 | if (ioctl (fd, (flushp) ? TIOCSETP : TIOCSETN, &settings->main) < 0) |
68936329 | 1244 | return -1; |
fe03522b | 1245 | #endif /* not DOS_NT */ |
68936329 JB |
1246 | |
1247 | #endif | |
1248 | #endif | |
1249 | #endif | |
1250 | ||
1251 | /* Suivant - Do we have to get struct ltchars data? */ | |
50b8cf60 | 1252 | #ifdef HAVE_LTCHARS |
68936329 JB |
1253 | if (ioctl (fd, TIOCSLTC, &settings->ltchars) < 0) |
1254 | return -1; | |
1255 | #endif | |
1256 | ||
1257 | /* How about a struct tchars and a wordful of lmode bits? */ | |
50b8cf60 | 1258 | #ifdef HAVE_TCHARS |
68936329 JB |
1259 | if (ioctl (fd, TIOCSETC, &settings->tchars) < 0 |
1260 | || ioctl (fd, TIOCLSET, &settings->lmode) < 0) | |
1261 | return -1; | |
1262 | #endif | |
177c0ea7 | 1263 | |
68936329 JB |
1264 | /* We have survived the tempest. */ |
1265 | return 0; | |
1266 | } | |
1267 | ||
1268 | \f | |
86a5659e | 1269 | |
91bac16a JB |
1270 | #ifdef BSD4_1 |
1271 | /* BSD 4.1 needs to keep track of the lmode bits in order to start | |
1272 | sigio. */ | |
1273 | int lmode; | |
1274 | #endif | |
1275 | ||
86a5659e | 1276 | #ifdef F_SETOWN |
819b8f00 | 1277 | int old_fcntl_owner[MAXDESC]; |
86a5659e JB |
1278 | #endif /* F_SETOWN */ |
1279 | ||
86a5659e JB |
1280 | /* This may also be defined in stdio, |
1281 | but if so, this does no harm, | |
1282 | and using the same name avoids wasting the other one's space. */ | |
1283 | ||
6a0d0ed3 KH |
1284 | #ifdef nec_ews_svr4 |
1285 | extern char *_sobuf ; | |
1286 | #else | |
86a5659e JB |
1287 | #if defined (USG) || defined (DGUX) |
1288 | unsigned char _sobuf[BUFSIZ+8]; | |
1289 | #else | |
1290 | char _sobuf[BUFSIZ]; | |
1291 | #endif | |
6a0d0ed3 | 1292 | #endif |
177c0ea7 | 1293 | |
50b8cf60 | 1294 | #ifdef HAVE_LTCHARS |
86a5659e JB |
1295 | static struct ltchars new_ltchars = {-1,-1,-1,-1,-1,-1}; |
1296 | #endif | |
50b8cf60 | 1297 | #ifdef HAVE_TCHARS |
4ec5cb58 | 1298 | static struct tchars new_tchars = {-1,-1,-1,-1,-1,-1}; |
177c0ea7 | 1299 | #endif |
86a5659e | 1300 | |
da8e1115 KL |
1301 | /* Initialize the terminal mode on all tty devices that are currently |
1302 | open. */ | |
1303 | ||
08633194 | 1304 | void |
28d440ab KL |
1305 | init_all_sys_modes (void) |
1306 | { | |
28d7d09f | 1307 | struct tty_display_info *tty; |
16c290d8 | 1308 | for (tty = tty_list; tty; tty = tty->next) |
28d440ab | 1309 | init_sys_modes (tty); |
28d440ab KL |
1310 | } |
1311 | ||
da8e1115 KL |
1312 | /* Initialize the terminal mode on the given tty device. */ |
1313 | ||
28d440ab | 1314 | void |
9628b887 | 1315 | init_sys_modes (tty_out) |
28d7d09f | 1316 | struct tty_display_info *tty_out; |
86a5659e | 1317 | { |
91bac16a JB |
1318 | struct emacs_tty tty; |
1319 | ||
86a5659e JB |
1320 | #ifdef VMS |
1321 | #if 0 | |
1322 | static int oob_chars[2] = {0, 1 << 7}; /* catch C-g's */ | |
1323 | extern int (*interrupt_signal) (); | |
1324 | #endif | |
1325 | #endif | |
1326 | ||
4ec5cb58 RS |
1327 | Vtty_erase_char = Qnil; |
1328 | ||
86a5659e JB |
1329 | if (noninteractive) |
1330 | return; | |
1331 | ||
0b0d3e0b KL |
1332 | if (!tty_out->output) |
1333 | return; /* The tty is suspended. */ | |
1334 | ||
86a5659e JB |
1335 | #ifdef VMS |
1336 | if (!input_ef) | |
1337 | input_ef = get_kbd_event_flag (); | |
1338 | /* LIB$GET_EF (&input_ef); */ | |
1339 | SYS$CLREF (input_ef); | |
1340 | waiting_for_ast = 0; | |
1341 | if (!timer_ef) | |
1342 | timer_ef = get_timer_event_flag (); | |
1343 | /* LIB$GET_EF (&timer_ef); */ | |
1344 | SYS$CLREF (timer_ef); | |
210b2b4f | 1345 | #if 0 |
86a5659e JB |
1346 | if (!process_ef) |
1347 | { | |
1348 | LIB$GET_EF (&process_ef); | |
1349 | SYS$CLREF (process_ef); | |
1350 | } | |
1351 | if (input_ef / 32 != process_ef / 32) | |
1352 | croak ("Input and process event flags in different clusters."); | |
210b2b4f | 1353 | #endif |
86a5659e | 1354 | if (input_ef / 32 != timer_ef / 32) |
210b2b4f JB |
1355 | croak ("Input and timer event flags in different clusters."); |
1356 | #if 0 | |
86a5659e JB |
1357 | input_eflist = ((unsigned) 1 << (input_ef % 32)) | |
1358 | ((unsigned) 1 << (process_ef % 32)); | |
210b2b4f | 1359 | #endif |
86a5659e JB |
1360 | timer_eflist = ((unsigned) 1 << (input_ef % 32)) | |
1361 | ((unsigned) 1 << (timer_ef % 32)); | |
86a5659e JB |
1362 | #ifndef VMS4_4 |
1363 | sys_access_reinit (); | |
1364 | #endif | |
9628b887 | 1365 | #endif /* VMS */ |
91bac16a | 1366 | |
0ba73609 | 1367 | #ifdef BSD_PGRPS |
428a555e KL |
1368 | #if 0 |
1369 | /* read_socket_hook is not global anymore. I think doing this | |
1370 | unconditionally will not cause any problems. */ | |
2246281f | 1371 | if (! read_socket_hook && EQ (Vinitial_window_system, Qnil)) |
428a555e | 1372 | #endif |
0b0d3e0b | 1373 | narrow_foreground_group (fileno (tty_out->input)); |
9ae8f997 JB |
1374 | #endif |
1375 | ||
2246281f KL |
1376 | if (! tty_out->old_tty) |
1377 | tty_out->old_tty = (struct emacs_tty *) xmalloc (sizeof (struct emacs_tty)); | |
fca177d4 | 1378 | |
0b0d3e0b | 1379 | EMACS_GET_TTY (fileno (tty_out->input), tty_out->old_tty); |
23dab951 | 1380 | |
2246281f | 1381 | tty = *tty_out->old_tty; |
86a5659e | 1382 | |
31be8d24 | 1383 | #if defined (HAVE_TERMIO) || defined (HAVE_TERMIOS) |
2246281f | 1384 | XSETINT (Vtty_erase_char, tty.main.c_cc[VERASE]); |
4ec5cb58 | 1385 | |
2246281f KL |
1386 | tty.main.c_iflag |= (IGNBRK); /* Ignore break condition */ |
1387 | tty.main.c_iflag &= ~ICRNL; /* Disable map of CR to NL on input */ | |
7f371164 RS |
1388 | #ifdef INLCR /* I'm just being cautious, |
1389 | since I can't check how widespread INLCR is--rms. */ | |
2246281f | 1390 | tty.main.c_iflag &= ~INLCR; /* Disable map of NL to CR on input */ |
7f371164 | 1391 | #endif |
86a5659e | 1392 | #ifdef ISTRIP |
2246281f | 1393 | tty.main.c_iflag &= ~ISTRIP; /* don't strip 8th bit on input */ |
86a5659e | 1394 | #endif |
2246281f KL |
1395 | tty.main.c_lflag &= ~ECHO; /* Disable echo */ |
1396 | tty.main.c_lflag &= ~ICANON; /* Disable erase/kill processing */ | |
e2b40c23 | 1397 | #ifdef IEXTEN |
2246281f | 1398 | tty.main.c_lflag &= ~IEXTEN; /* Disable other editing characters. */ |
e2b40c23 | 1399 | #endif |
2246281f KL |
1400 | tty.main.c_lflag |= ISIG; /* Enable signals */ |
1401 | if (tty_out->flow_control) | |
1402 | { | |
1403 | tty.main.c_iflag |= IXON; /* Enable start/stop output control */ | |
86a5659e | 1404 | #ifdef IXANY |
2246281f | 1405 | tty.main.c_iflag &= ~IXANY; |
86a5659e | 1406 | #endif /* IXANY */ |
2246281f KL |
1407 | } |
1408 | else | |
1409 | tty.main.c_iflag &= ~IXON; /* Disable start/stop output control */ | |
1410 | tty.main.c_oflag &= ~ONLCR; /* Disable map of NL to CR-NL | |
1411 | on output */ | |
1412 | tty.main.c_oflag &= ~TAB3; /* Disable tab expansion */ | |
86a5659e | 1413 | #ifdef CS8 |
2246281f KL |
1414 | if (tty_out->meta_key) |
1415 | { | |
1416 | tty.main.c_cflag |= CS8; /* allow 8th bit on input */ | |
1417 | tty.main.c_cflag &= ~PARENB;/* Don't check parity */ | |
1418 | } | |
86a5659e | 1419 | #endif |
2246281f KL |
1420 | if (tty_out->input == stdin) |
1421 | { | |
1422 | tty.main.c_cc[VINTR] = quit_char; /* C-g (usually) gives SIGINT */ | |
1423 | /* Set up C-g for both SIGQUIT and SIGINT. | |
1424 | We don't know which we will get, but we handle both alike | |
1425 | so which one it really gives us does not matter. */ | |
1426 | tty.main.c_cc[VQUIT] = quit_char; | |
1427 | } | |
1428 | else | |
1429 | { | |
1430 | /* We normally don't get interrupt or quit signals from tty | |
1431 | devices other than our controlling terminal; therefore, | |
1432 | we must handle C-g as normal input. Unfortunately, this | |
1433 | means that the interrupt and quit feature must be | |
1434 | disabled on secondary ttys, or we would not even see the | |
1435 | keypress. | |
1436 | ||
1437 | Note that even though emacsclient could have special code | |
1438 | to pass SIGINT to Emacs, we should _not_ enable | |
1439 | interrupt/quit keys for emacsclient frames. This means | |
1440 | that we can't break out of loops in C code from a | |
1441 | secondary tty frame, but we can always decide what | |
1442 | display the C-g came from, which is more important from a | |
1443 | usability point of view. (Consider the case when two | |
1444 | people work together using the same Emacs instance.) */ | |
1445 | tty.main.c_cc[VINTR] = CDISABLE; | |
1446 | tty.main.c_cc[VQUIT] = CDISABLE; | |
1447 | } | |
1448 | tty.main.c_cc[VMIN] = 1; /* Input should wait for at least 1 char */ | |
1449 | tty.main.c_cc[VTIME] = 0; /* no matter how long that takes. */ | |
86a5659e | 1450 | #ifdef VSWTCH |
2246281f | 1451 | tty.main.c_cc[VSWTCH] = CDISABLE; /* Turn off shell layering use |
91bac16a | 1452 | of C-z */ |
86a5659e | 1453 | #endif /* VSWTCH */ |
2246281f | 1454 | |
86a5659e | 1455 | #if defined (mips) || defined (HAVE_TCATTR) |
86a5659e | 1456 | #ifdef VSUSP |
2246281f | 1457 | tty.main.c_cc[VSUSP] = CDISABLE; /* Turn off mips handling of C-z. */ |
86a5659e JB |
1458 | #endif /* VSUSP */ |
1459 | #ifdef V_DSUSP | |
2246281f | 1460 | tty.main.c_cc[V_DSUSP] = CDISABLE; /* Turn off mips handling of C-y. */ |
86a5659e | 1461 | #endif /* V_DSUSP */ |
e2b40c23 | 1462 | #ifdef VDSUSP /* Some systems have VDSUSP, some have V_DSUSP. */ |
2246281f | 1463 | tty.main.c_cc[VDSUSP] = CDISABLE; |
e2b40c23 | 1464 | #endif /* VDSUSP */ |
92c995de | 1465 | #ifdef VLNEXT |
2246281f | 1466 | tty.main.c_cc[VLNEXT] = CDISABLE; |
92c995de RS |
1467 | #endif /* VLNEXT */ |
1468 | #ifdef VREPRINT | |
2246281f | 1469 | tty.main.c_cc[VREPRINT] = CDISABLE; |
92c995de RS |
1470 | #endif /* VREPRINT */ |
1471 | #ifdef VWERASE | |
2246281f | 1472 | tty.main.c_cc[VWERASE] = CDISABLE; |
92c995de RS |
1473 | #endif /* VWERASE */ |
1474 | #ifdef VDISCARD | |
2246281f | 1475 | tty.main.c_cc[VDISCARD] = CDISABLE; |
92c995de | 1476 | #endif /* VDISCARD */ |
c179a6d1 | 1477 | |
2246281f KL |
1478 | if (tty_out->flow_control) |
1479 | { | |
421dd92f | 1480 | #ifdef VSTART |
2246281f | 1481 | tty.main.c_cc[VSTART] = '\021'; |
421dd92f RS |
1482 | #endif /* VSTART */ |
1483 | #ifdef VSTOP | |
2246281f | 1484 | tty.main.c_cc[VSTOP] = '\023'; |
421dd92f | 1485 | #endif /* VSTOP */ |
2246281f KL |
1486 | } |
1487 | else | |
1488 | { | |
c179a6d1 | 1489 | #ifdef VSTART |
2246281f | 1490 | tty.main.c_cc[VSTART] = CDISABLE; |
c179a6d1 RS |
1491 | #endif /* VSTART */ |
1492 | #ifdef VSTOP | |
2246281f | 1493 | tty.main.c_cc[VSTOP] = CDISABLE; |
c179a6d1 | 1494 | #endif /* VSTOP */ |
2246281f | 1495 | } |
86a5659e | 1496 | #endif /* mips or HAVE_TCATTR */ |
c179a6d1 | 1497 | |
441f6399 | 1498 | #ifdef SET_LINE_DISCIPLINE |
2246281f KL |
1499 | /* Need to explicitly request TERMIODISC line discipline or |
1500 | Ultrix's termios does not work correctly. */ | |
1501 | tty.main.c_line = SET_LINE_DISCIPLINE; | |
441f6399 | 1502 | #endif |
86a5659e JB |
1503 | #ifdef AIX |
1504 | #ifndef IBMR2AIX | |
2246281f KL |
1505 | /* AIX enhanced edit loses NULs, so disable it. */ |
1506 | tty.main.c_line = 0; | |
1507 | tty.main.c_iflag &= ~ASCEDIT; | |
86a5659e | 1508 | #else |
f5272227 KL |
1509 | tty.main.c_cc[VSTRT] = CDISABLE; |
1510 | tty.main.c_cc[VSTOP] = CDISABLE; | |
1511 | tty.main.c_cc[VSUSP] = CDISABLE; | |
1512 | tty.main.c_cc[VDSUSP] = CDISABLE; | |
86a5659e | 1513 | #endif /* IBMR2AIX */ |
2246281f KL |
1514 | if (tty_out->flow_control) |
1515 | { | |
ac567c95 | 1516 | #ifdef VSTART |
2246281f | 1517 | tty.main.c_cc[VSTART] = '\021'; |
ac567c95 RS |
1518 | #endif /* VSTART */ |
1519 | #ifdef VSTOP | |
2246281f | 1520 | tty.main.c_cc[VSTOP] = '\023'; |
ac567c95 | 1521 | #endif /* VSTOP */ |
2246281f KL |
1522 | } |
1523 | /* Also, PTY overloads NUL and BREAK. | |
1524 | don't ignore break, but don't signal either, so it looks like NUL. | |
1525 | This really serves a purpose only if running in an XTERM window | |
1526 | or via TELNET or the like, but does no harm elsewhere. */ | |
1527 | tty.main.c_iflag &= ~IGNBRK; | |
1528 | tty.main.c_iflag &= ~BRKINT; | |
86a5659e JB |
1529 | #endif |
1530 | #else /* if not HAVE_TERMIO */ | |
1531 | #ifdef VMS | |
2246281f KL |
1532 | tty.main.tt_char |= TT$M_NOECHO; |
1533 | if (meta_key) | |
1534 | tty.main.tt_char |= TT$M_EIGHTBIT; | |
1535 | if (tty_out->flow_control) | |
1536 | tty.main.tt_char |= TT$M_TTSYNC; | |
1537 | else | |
1538 | tty.main.tt_char &= ~TT$M_TTSYNC; | |
1539 | tty.main.tt2_char |= TT2$M_PASTHRU | TT2$M_XON; | |
86a5659e | 1540 | #else /* not VMS (BSD, that is) */ |
fe03522b | 1541 | #ifndef DOS_NT |
2246281f KL |
1542 | XSETINT (Vtty_erase_char, tty.main.sg_erase); |
1543 | tty.main.sg_flags &= ~(ECHO | CRMOD | XTABS); | |
1544 | if (meta_key) | |
1545 | tty.main.sg_flags |= ANYP; | |
1546 | tty.main.sg_flags |= interrupt_input ? RAW : CBREAK; | |
fe03522b | 1547 | #endif /* not DOS_NT */ |
86a5659e JB |
1548 | #endif /* not VMS (BSD, that is) */ |
1549 | #endif /* not HAVE_TERMIO */ | |
1550 | ||
2246281f KL |
1551 | /* If going to use CBREAK mode, we must request C-g to interrupt |
1552 | and turn off start and stop chars, etc. If not going to use | |
1553 | CBREAK mode, do this anyway so as to turn off local flow | |
1554 | control for user coming over network on 4.2; in this case, | |
1555 | only t_stopc and t_startc really matter. */ | |
91bac16a | 1556 | #ifndef HAVE_TERMIO |
50b8cf60 | 1557 | #ifdef HAVE_TCHARS |
2246281f KL |
1558 | /* Note: if not using CBREAK mode, it makes no difference how we |
1559 | set this */ | |
1560 | tty.tchars = new_tchars; | |
1561 | tty.tchars.t_intrc = quit_char; | |
1562 | if (tty_out->flow_control) | |
1563 | { | |
1564 | tty.tchars.t_startc = '\021'; | |
1565 | tty.tchars.t_stopc = '\023'; | |
1566 | } | |
1567 | ||
1568 | tty.lmode = LDECCTQ | LLITOUT | LPASS8 | LNOFLSH | tty_out->old_tty.lmode; | |
37fd7901 | 1569 | #ifdef ultrix |
2246281f KL |
1570 | /* Under Ultrix 4.2a, leaving this out doesn't seem to hurt |
1571 | anything, and leaving it in breaks the meta key. Go figure. */ | |
1572 | tty.lmode &= ~LLITOUT; | |
37fd7901 | 1573 | #endif |
2246281f | 1574 | |
91bac16a | 1575 | #ifdef BSD4_1 |
2246281f | 1576 | lmode = tty.lmode; |
91bac16a JB |
1577 | #endif |
1578 | ||
50b8cf60 | 1579 | #endif /* HAVE_TCHARS */ |
91bac16a JB |
1580 | #endif /* not HAVE_TERMIO */ |
1581 | ||
50b8cf60 | 1582 | #ifdef HAVE_LTCHARS |
2246281f | 1583 | tty.ltchars = new_ltchars; |
50b8cf60 | 1584 | #endif /* HAVE_LTCHARS */ |
207bdbdb | 1585 | #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida, MW Aug 1993 */ |
2246281f KL |
1586 | if (!tty_out->term_initted) |
1587 | internal_terminal_init (); | |
1588 | dos_ttraw (); | |
207bdbdb | 1589 | #endif |
91bac16a | 1590 | |
0b0d3e0b | 1591 | EMACS_SET_TTY (fileno (tty_out->input), &tty, 0); |
86a5659e | 1592 | |
2246281f KL |
1593 | /* This code added to insure that, if flow-control is not to be used, |
1594 | we have an unlocked terminal at the start. */ | |
91bac16a | 1595 | |
86a5659e | 1596 | #ifdef TCXONC |
0b0d3e0b | 1597 | if (!tty_out->flow_control) ioctl (fileno (tty_out->input), TCXONC, 1); |
86a5659e | 1598 | #endif |
86a5659e | 1599 | #ifdef TIOCSTART |
0b0d3e0b | 1600 | if (!tty_out->flow_control) ioctl (fileno (tty_out->input), TIOCSTART, 0); |
86a5659e | 1601 | #endif |
86a5659e | 1602 | |
d228f207 | 1603 | #if defined (HAVE_TERMIOS) || defined (HPUX9) |
51417996 | 1604 | #ifdef TCOON |
0b0d3e0b | 1605 | if (!tty_out->flow_control) tcflow (fileno (tty_out->input), TCOON); |
d228f207 | 1606 | #endif |
51417996 | 1607 | #endif |
d228f207 | 1608 | |
b97ab886 | 1609 | #ifdef AIXHFT |
2246281f | 1610 | hft_init (tty_out); |
86a5659e | 1611 | #ifdef IBMR2AIX |
2246281f KL |
1612 | { |
1613 | /* IBM's HFT device usually thinks a ^J should be LF/CR. We need it | |
1614 | to be only LF. This is the way that is done. */ | |
1615 | struct termio tty; | |
1616 | ||
1617 | if (ioctl (1, HFTGETID, &tty) != -1) | |
1618 | write (1, "\033[20l", 5); | |
1619 | } | |
86a5659e | 1620 | #endif |
b97ab886 | 1621 | #endif /* AIXHFT */ |
86a5659e | 1622 | |
86a5659e JB |
1623 | #ifdef VMS |
1624 | /* Appears to do nothing when in PASTHRU mode. | |
0b0d3e0b | 1625 | SYS$QIOW (0, fileno (tty_out->input), IO$_SETMODE|IO$M_OUTBAND, 0, 0, 0, |
86a5659e JB |
1626 | interrupt_signal, oob_chars, 0, 0, 0, 0); |
1627 | */ | |
2246281f | 1628 | queue_kbd_input (0); |
86a5659e | 1629 | #endif /* VMS */ |
86a5659e JB |
1630 | |
1631 | #ifdef F_SETFL | |
eb8c3be9 | 1632 | #ifdef F_GETOWN /* F_SETFL does not imply existence of F_GETOWN */ |
2246281f | 1633 | if (interrupt_input) |
86a5659e | 1634 | { |
0b0d3e0b KL |
1635 | old_fcntl_owner[fileno (tty_out->input)] = |
1636 | fcntl (fileno (tty_out->input), F_GETOWN, 0); | |
1637 | fcntl (fileno (tty_out->input), F_SETOWN, getpid ()); | |
1638 | init_sigio (fileno (tty_out->input)); | |
7e5a23bd | 1639 | #ifdef HAVE_GPM |
75a8734b | 1640 | if (gpm_tty == tty_out) |
3e748bcb | 1641 | { |
75a8734b | 1642 | /* Arrange for mouse events to give us SIGIO signals. */ |
3e748bcb | 1643 | fcntl (gpm_fd, F_SETOWN, getpid ()); |
57669cf1 | 1644 | fcntl (gpm_fd, F_SETFL, fcntl (gpm_fd, F_GETFL, 0) | O_NONBLOCK); |
3e748bcb NR |
1645 | init_sigio (gpm_fd); |
1646 | } | |
7e5a23bd | 1647 | #endif /* HAVE_GPM */ |
86a5659e JB |
1648 | } |
1649 | #endif /* F_GETOWN */ | |
1650 | #endif /* F_SETFL */ | |
1651 | ||
1652 | #ifdef BSD4_1 | |
1653 | if (interrupt_input) | |
0b0d3e0b | 1654 | init_sigio (fileno (tty_out->input)); |
86a5659e JB |
1655 | #endif |
1656 | ||
1657 | #ifdef VMS /* VMS sometimes has this symbol but lacks setvbuf. */ | |
1658 | #undef _IOFBF | |
1659 | #endif | |
1660 | #ifdef _IOFBF | |
1661 | /* This symbol is defined on recent USG systems. | |
1662 | Someone says without this call USG won't really buffer the file | |
1663 | even with a call to setbuf. */ | |
0b0d3e0b | 1664 | setvbuf (tty_out->output, (char *) _sobuf, _IOFBF, sizeof _sobuf); |
86a5659e | 1665 | #else |
0b0d3e0b | 1666 | setbuf (tty_out->output, (char *) _sobuf); |
86a5659e | 1667 | #endif |
4d553a13 | 1668 | |
69fb5031 JR |
1669 | if (tty_out->terminal->set_terminal_modes_hook) |
1670 | tty_out->terminal->set_terminal_modes_hook (tty_out->terminal); | |
4b311aaf | 1671 | |
9628b887 KL |
1672 | if (!tty_out->term_initted) |
1673 | { | |
1674 | Lisp_Object tail, frame; | |
1675 | FOR_EACH_FRAME (tail, frame) | |
1676 | { | |
daf01701 | 1677 | /* XXX This needs to be revised. */ |
9628b887 KL |
1678 | if (FRAME_TERMCAP_P (XFRAME (frame)) |
1679 | && FRAME_TTY (XFRAME (frame)) == tty_out) | |
1680 | init_frame_faces (XFRAME (frame)); | |
1681 | } | |
1682 | } | |
045942b2 | 1683 | |
9628b887 | 1684 | if (tty_out->term_initted && no_redraw_on_reenter) |
86a5659e | 1685 | { |
1fb8c4ad | 1686 | /* XXX This seems wrong on multi-tty. */ |
86a5659e JB |
1687 | if (display_completed) |
1688 | direct_output_forward_char (0); | |
1689 | } | |
1690 | else | |
1691 | { | |
9628b887 | 1692 | Lisp_Object tail, frame; |
0137dbf7 | 1693 | frame_garbaged = 1; |
9628b887 KL |
1694 | FOR_EACH_FRAME (tail, frame) |
1695 | { | |
1696 | if (FRAME_TERMCAP_P (XFRAME (frame)) | |
1697 | && FRAME_TTY (XFRAME (frame)) == tty_out) | |
1698 | FRAME_GARBAGED_P (XFRAME (frame)) = 1; | |
1699 | } | |
86a5659e | 1700 | } |
91bac16a | 1701 | |
9628b887 | 1702 | tty_out->term_initted = 1; |
86a5659e JB |
1703 | } |
1704 | ||
1705 | /* Return nonzero if safe to use tabs in output. | |
1706 | At the time this is called, init_sys_modes has not been done yet. */ | |
177c0ea7 | 1707 | |
dfcf069d | 1708 | int |
16c290d8 | 1709 | tabs_safe_p (int fd) |
86a5659e | 1710 | { |
6548cf00 | 1711 | struct emacs_tty etty; |
91bac16a | 1712 | |
16c290d8 | 1713 | EMACS_GET_TTY (fd, &etty); |
6548cf00 | 1714 | return EMACS_TTY_TABS_OK (&etty); |
86a5659e | 1715 | } |
73d5358f | 1716 | \f |
86a5659e | 1717 | /* Get terminal size from system. |
73d5358f RS |
1718 | Store number of lines into *HEIGHTP and width into *WIDTHP. |
1719 | We store 0 if there's no valid information. */ | |
86a5659e | 1720 | |
08633194 | 1721 | void |
16c290d8 | 1722 | get_tty_size (int fd, int *widthp, int *heightp) |
86a5659e | 1723 | { |
86a5659e | 1724 | |
86a5659e | 1725 | #ifdef TIOCGWINSZ |
91bac16a JB |
1726 | |
1727 | /* BSD-style. */ | |
86a5659e | 1728 | struct winsize size; |
91bac16a | 1729 | |
16c290d8 | 1730 | if (ioctl (fd, TIOCGWINSZ, &size) == -1) |
91bac16a JB |
1731 | *widthp = *heightp = 0; |
1732 | else | |
1733 | { | |
1734 | *widthp = size.ws_col; | |
1735 | *heightp = size.ws_row; | |
1736 | } | |
1737 | ||
1738 | #else | |
1739 | #ifdef TIOCGSIZE | |
1740 | ||
1741 | /* SunOS - style. */ | |
177c0ea7 | 1742 | struct ttysize size; |
91bac16a | 1743 | |
16c290d8 | 1744 | if (ioctl (fd, TIOCGSIZE, &size) == -1) |
91bac16a JB |
1745 | *widthp = *heightp = 0; |
1746 | else | |
1747 | { | |
1748 | *widthp = size.ts_cols; | |
1749 | *heightp = size.ts_lines; | |
1750 | } | |
1751 | ||
1752 | #else | |
86a5659e | 1753 | #ifdef VMS |
91bac16a | 1754 | |
a72c2d97 TTN |
1755 | /* Use a fresh channel since the current one may have stale info |
1756 | (for example, from prior to a suspend); and to avoid a dependency | |
1757 | in the init sequence. */ | |
1758 | int chan; | |
91bac16a | 1759 | struct sensemode tty; |
177c0ea7 | 1760 | |
a72c2d97 TTN |
1761 | SYS$ASSIGN (&input_dsc, &chan, 0, 0); |
1762 | SYS$QIOW (0, chan, IO$_SENSEMODE, &tty, 0, 0, | |
1763 | &tty.class, 12, 0, 0, 0, 0); | |
1764 | SYS$DASSGN (chan); | |
86a5659e JB |
1765 | *widthp = tty.scr_wid; |
1766 | *heightp = tty.scr_len; | |
91bac16a | 1767 | |
207bdbdb RS |
1768 | #else |
1769 | #ifdef MSDOS | |
1770 | *widthp = ScreenCols (); | |
1771 | *heightp = ScreenRows (); | |
86a5659e JB |
1772 | #else /* system doesn't know size */ |
1773 | *widthp = 0; | |
1774 | *heightp = 0; | |
207bdbdb | 1775 | #endif |
91bac16a JB |
1776 | #endif /* not VMS */ |
1777 | #endif /* not SunOS-style */ | |
1778 | #endif /* not BSD-style */ | |
86a5659e | 1779 | } |
91bac16a | 1780 | |
73d5358f RS |
1781 | /* Set the logical window size associated with descriptor FD |
1782 | to HEIGHT and WIDTH. This is used mainly with ptys. */ | |
1783 | ||
1784 | int | |
1785 | set_window_size (fd, height, width) | |
1786 | int fd, height, width; | |
1787 | { | |
1788 | #ifdef TIOCSWINSZ | |
1789 | ||
1790 | /* BSD-style. */ | |
1791 | struct winsize size; | |
1792 | size.ws_row = height; | |
1793 | size.ws_col = width; | |
1794 | ||
1795 | if (ioctl (fd, TIOCSWINSZ, &size) == -1) | |
1796 | return 0; /* error */ | |
1797 | else | |
1798 | return 1; | |
1799 | ||
1800 | #else | |
1801 | #ifdef TIOCSSIZE | |
1802 | ||
1803 | /* SunOS - style. */ | |
177c0ea7 | 1804 | struct ttysize size; |
73d5358f RS |
1805 | size.ts_lines = height; |
1806 | size.ts_cols = width; | |
1807 | ||
1808 | if (ioctl (fd, TIOCGSIZE, &size) == -1) | |
1809 | return 0; | |
1810 | else | |
1811 | return 1; | |
1812 | #else | |
1813 | return -1; | |
1814 | #endif /* not SunOS-style */ | |
1815 | #endif /* not BSD-style */ | |
1816 | } | |
1817 | ||
86a5659e | 1818 | \f |
da8e1115 KL |
1819 | |
1820 | /* Prepare all terminal devices for exiting Emacs. */ | |
1821 | ||
28d440ab KL |
1822 | void |
1823 | reset_all_sys_modes (void) | |
1824 | { | |
28d7d09f | 1825 | struct tty_display_info *tty; |
16c290d8 | 1826 | for (tty = tty_list; tty; tty = tty->next) |
28d440ab | 1827 | reset_sys_modes (tty); |
28d440ab KL |
1828 | } |
1829 | ||
0a125897 | 1830 | /* Prepare the terminal for closing it; move the cursor to the |
0137dbf7 | 1831 | bottom of the frame, turn off interrupt-driven I/O, etc. */ |
da8e1115 | 1832 | |
08633194 | 1833 | void |
9628b887 | 1834 | reset_sys_modes (tty_out) |
28d7d09f | 1835 | struct tty_display_info *tty_out; |
86a5659e JB |
1836 | { |
1837 | if (noninteractive) | |
1838 | { | |
1839 | fflush (stdout); | |
1840 | return; | |
1841 | } | |
9628b887 | 1842 | if (!tty_out->term_initted) |
86a5659e | 1843 | return; |
da8e1115 | 1844 | |
0b0d3e0b KL |
1845 | if (!tty_out->output) |
1846 | return; /* The tty is suspended. */ | |
1847 | ||
da8e1115 KL |
1848 | /* Go to and clear the last line of the terminal. */ |
1849 | ||
0a125897 | 1850 | cmgoto (tty_out, FrameRows (tty_out) - 1, 0); |
0b0d3e0b | 1851 | |
da8e1115 KL |
1852 | /* Code adapted from tty_clear_end_of_line. */ |
1853 | if (tty_out->TS_clr_line) | |
1854 | { | |
1855 | emacs_tputs (tty_out, tty_out->TS_clr_line, 1, cmputc); | |
1856 | } | |
1857 | else | |
1858 | { /* have to do it the hard way */ | |
1859 | int i; | |
ed8dad6b | 1860 | tty_turn_off_insert (tty_out); |
0b0d3e0b | 1861 | |
da8e1115 | 1862 | for (i = curX (tty_out); i < FrameCols (tty_out) - 1; i++) |
0b0d3e0b KL |
1863 | { |
1864 | fputc (' ', tty_out->output); | |
1865 | } | |
da8e1115 | 1866 | } |
0b0d3e0b | 1867 | |
0a125897 | 1868 | cmgoto (tty_out, FrameRows (tty_out) - 1, 0); |
819b8f00 KL |
1869 | fflush (tty_out->output); |
1870 | ||
b97ab886 | 1871 | #if defined (IBMR2AIX) && defined (AIXHFT) |
86a5659e | 1872 | { |
177c0ea7 | 1873 | /* HFT devices normally use ^J as a LF/CR. We forced it to |
86a5659e JB |
1874 | do the LF only. Now, we need to reset it. */ |
1875 | struct termio tty; | |
1876 | ||
1877 | if (ioctl (1, HFTGETID, &tty) != -1) | |
1878 | write (1, "\033[20h", 5); | |
1879 | } | |
1880 | #endif | |
1881 | ||
69fb5031 JR |
1882 | if (tty_out->terminal->reset_terminal_modes_hook) |
1883 | tty_out->terminal->reset_terminal_modes_hook (tty_out->terminal); | |
2f98e6e3 | 1884 | |
2a633456 | 1885 | #ifdef BSD_SYSTEM |
86a5659e JB |
1886 | #ifndef BSD4_1 |
1887 | /* Avoid possible loss of output when changing terminal modes. */ | |
0b0d3e0b | 1888 | fsync (fileno (tty_out->output)); |
86a5659e JB |
1889 | #endif |
1890 | #endif | |
91bac16a | 1891 | |
86a5659e | 1892 | #ifdef F_SETFL |
eb8c3be9 | 1893 | #ifdef F_SETOWN /* F_SETFL does not imply existence of F_SETOWN */ |
86a5659e JB |
1894 | if (interrupt_input) |
1895 | { | |
0b0d3e0b KL |
1896 | reset_sigio (fileno (tty_out->input)); |
1897 | fcntl (fileno (tty_out->input), F_SETOWN, | |
1898 | old_fcntl_owner[fileno (tty_out->input)]); | |
86a5659e JB |
1899 | } |
1900 | #endif /* F_SETOWN */ | |
a6b00318 | 1901 | #ifdef O_NDELAY |
0b0d3e0b KL |
1902 | fcntl (fileno (tty_out->input), F_SETFL, |
1903 | fcntl (fileno (tty_out->input), F_GETFL, 0) & ~O_NDELAY); | |
a6b00318 | 1904 | #endif |
86a5659e JB |
1905 | #endif /* F_SETFL */ |
1906 | #ifdef BSD4_1 | |
1907 | if (interrupt_input) | |
0b0d3e0b | 1908 | reset_sigio (fileno (tty_out->input)); |
86a5659e | 1909 | #endif /* BSD4_1 */ |
91bac16a | 1910 | |
fca177d4 | 1911 | if (tty_out->old_tty) |
0b0d3e0b | 1912 | while (EMACS_SET_TTY (fileno (tty_out->input), |
fca177d4 | 1913 | tty_out->old_tty, 0) < 0 && errno == EINTR) |
7e32a4fb | 1914 | ; |
86a5659e | 1915 | |
207bdbdb RS |
1916 | #ifdef MSDOS /* Demacs 1.1.2 91/10/20 Manabu Higashida */ |
1917 | dos_ttcooked (); | |
1918 | #endif | |
1919 | ||
441f6399 RS |
1920 | #ifdef SET_LINE_DISCIPLINE |
1921 | /* Ultrix's termios *ignores* any line discipline except TERMIODISC. | |
1922 | A different old line discipline is therefore not restored, yet. | |
1923 | Restore the old line discipline by hand. */ | |
9628b887 | 1924 | ioctl (0, TIOCSETD, &tty_out->old_tty.main.c_line); |
441f6399 RS |
1925 | #endif |
1926 | ||
b97ab886 | 1927 | #ifdef AIXHFT |
86a5659e JB |
1928 | hft_reset (); |
1929 | #endif | |
9ae8f997 | 1930 | |
0ba73609 | 1931 | #ifdef BSD_PGRPS |
0b0d3e0b | 1932 | widen_foreground_group (fileno (tty_out->input)); |
9ae8f997 | 1933 | #endif |
86a5659e JB |
1934 | } |
1935 | \f | |
1936 | #ifdef HAVE_PTYS | |
1937 | ||
1938 | /* Set up the proper status flags for use of a pty. */ | |
1939 | ||
08633194 | 1940 | void |
86a5659e JB |
1941 | setup_pty (fd) |
1942 | int fd; | |
1943 | { | |
1944 | /* I'm told that TOICREMOTE does not mean control chars | |
1945 | "can't be sent" but rather that they don't have | |
1946 | input-editing or signaling effects. | |
1947 | That should be good, because we have other ways | |
1948 | to do those things in Emacs. | |
1949 | However, telnet mode seems not to work on 4.2. | |
1950 | So TIOCREMOTE is turned off now. */ | |
1951 | ||
1952 | /* Under hp-ux, if TIOCREMOTE is turned on, some calls | |
1953 | will hang. In particular, the "timeout" feature (which | |
1954 | causes a read to return if there is no data available) | |
1955 | does this. Also it is known that telnet mode will hang | |
1956 | in such a way that Emacs must be stopped (perhaps this | |
1957 | is the same problem). | |
177c0ea7 | 1958 | |
86a5659e JB |
1959 | If TIOCREMOTE is turned off, then there is a bug in |
1960 | hp-ux which sometimes loses data. Apparently the | |
1961 | code which blocks the master process when the internal | |
1962 | buffer fills up does not work. Other than this, | |
1963 | though, everything else seems to work fine. | |
177c0ea7 | 1964 | |
86a5659e JB |
1965 | Since the latter lossage is more benign, we may as well |
1966 | lose that way. -- cph */ | |
1967 | #ifdef FIONBIO | |
e20caf05 | 1968 | #if defined(SYSV_PTYS) || defined(UNIX98_PTYS) |
86a5659e JB |
1969 | { |
1970 | int on = 1; | |
1971 | ioctl (fd, FIONBIO, &on); | |
1972 | } | |
1973 | #endif | |
1974 | #endif | |
86a5659e JB |
1975 | } |
1976 | #endif /* HAVE_PTYS */ | |
1977 | \f | |
1978 | #ifdef VMS | |
1979 | ||
1980 | /* Assigning an input channel is done at the start of Emacs execution. | |
1981 | This is called each time Emacs is resumed, also, but does nothing | |
1982 | because input_chain is no longer zero. */ | |
1983 | ||
dfcf069d | 1984 | void |
86a5659e JB |
1985 | init_vms_input () |
1986 | { | |
1987 | int status; | |
177c0ea7 | 1988 | |
0b0d3e0b | 1989 | if (fileno (CURTTY ()->input)) == 0) |
86a5659e | 1990 | { |
0b0d3e0b | 1991 | status = SYS$ASSIGN (&input_dsc, &fileno (CURTTY ()->input)), 0, 0); |
86a5659e JB |
1992 | if (! (status & 1)) |
1993 | LIB$STOP (status); | |
1994 | } | |
1995 | } | |
1996 | ||
1997 | /* Deassigning the input channel is done before exiting. */ | |
1998 | ||
dfcf069d | 1999 | void |
86a5659e JB |
2000 | stop_vms_input () |
2001 | { | |
0b0d3e0b | 2002 | return SYS$DASSGN (fileno (CURTTY ()->input))); |
86a5659e JB |
2003 | } |
2004 | ||
2005 | short input_buffer; | |
2006 | ||
2007 | /* Request reading one character into the keyboard buffer. | |
2008 | This is done as soon as the buffer becomes empty. */ | |
2009 | ||
dfcf069d | 2010 | void |
86a5659e JB |
2011 | queue_kbd_input () |
2012 | { | |
2013 | int status; | |
210b2b4f JB |
2014 | extern kbd_input_ast (); |
2015 | ||
86a5659e JB |
2016 | waiting_for_ast = 0; |
2017 | stop_input = 0; | |
0b0d3e0b | 2018 | status = SYS$QIO (0, fileno (CURTTY()->input), IO$_READVBLK, |
86a5659e JB |
2019 | &input_iosb, kbd_input_ast, 1, |
2020 | &input_buffer, 1, 0, terminator_mask, 0, 0); | |
2021 | } | |
2022 | ||
2023 | int input_count; | |
2024 | ||
2025 | /* Ast routine that is called when keyboard input comes in | |
2026 | in accord with the SYS$QIO above. */ | |
2027 | ||
dfcf069d | 2028 | void |
86a5659e JB |
2029 | kbd_input_ast () |
2030 | { | |
2031 | register int c = -1; | |
2032 | int old_errno = errno; | |
ffd56f97 | 2033 | extern EMACS_TIME *input_available_clear_time; |
86a5659e JB |
2034 | |
2035 | if (waiting_for_ast) | |
2036 | SYS$SETEF (input_ef); | |
2037 | waiting_for_ast = 0; | |
2038 | input_count++; | |
2039 | #ifdef ASTDEBUG | |
2040 | if (input_count == 25) | |
2041 | exit (1); | |
2042 | printf ("Ast # %d,", input_count); | |
2043 | printf (" iosb = %x, %x, %x, %x", | |
2044 | input_iosb.offset, input_iosb.status, input_iosb.termlen, | |
2045 | input_iosb.term); | |
2046 | #endif | |
2047 | if (input_iosb.offset) | |
2048 | { | |
2049 | c = input_buffer; | |
2050 | #ifdef ASTDEBUG | |
2051 | printf (", char = 0%o", c); | |
2052 | #endif | |
2053 | } | |
2054 | #ifdef ASTDEBUG | |
2055 | printf ("\n"); | |
2056 | fflush (stdout); | |
2057 | sleep (1); | |
2058 | #endif | |
2059 | if (! stop_input) | |
2060 | queue_kbd_input (); | |
2061 | if (c >= 0) | |
2062 | { | |
2063 | struct input_event e; | |
50acda85 SM |
2064 | EVENT_INIT (e); |
2065 | ||
e43bd4f5 | 2066 | e.kind = ASCII_KEYSTROKE_EVENT; |
c81d47b4 | 2067 | XSETINT (e.code, c); |
2d064114 | 2068 | e.frame_or_window = selected_frame; |
86a5659e JB |
2069 | kbd_buffer_store_event (&e); |
2070 | } | |
ffd56f97 JB |
2071 | if (input_available_clear_time) |
2072 | EMACS_SET_SECS_USECS (*input_available_clear_time, 0, 0); | |
86a5659e JB |
2073 | errno = old_errno; |
2074 | } | |
2075 | ||
2076 | /* Wait until there is something in kbd_buffer. */ | |
2077 | ||
dfcf069d | 2078 | void |
86a5659e JB |
2079 | wait_for_kbd_input () |
2080 | { | |
2081 | extern int have_process_input, process_exited; | |
2082 | ||
2083 | /* If already something, avoid doing system calls. */ | |
2084 | if (detect_input_pending ()) | |
2085 | { | |
2086 | return; | |
2087 | } | |
2088 | /* Clear a flag, and tell ast routine above to set it. */ | |
2089 | SYS$CLREF (input_ef); | |
2090 | waiting_for_ast = 1; | |
2091 | /* Check for timing error: ast happened while we were doing that. */ | |
2092 | if (!detect_input_pending ()) | |
2093 | { | |
2094 | /* No timing error: wait for flag to be set. */ | |
2095 | set_waiting_for_input (0); | |
2096 | SYS$WFLOR (input_ef, input_eflist); | |
61851c0e | 2097 | clear_waiting_for_input (); |
86a5659e JB |
2098 | if (!detect_input_pending ()) |
2099 | /* Check for subprocess input availability */ | |
2100 | { | |
2101 | int dsp = have_process_input || process_exited; | |
2102 | ||
2103 | SYS$CLREF (process_ef); | |
2104 | if (have_process_input) | |
2105 | process_command_input (); | |
2106 | if (process_exited) | |
2107 | process_exit (); | |
2108 | if (dsp) | |
2109 | { | |
2110 | update_mode_lines++; | |
56b18525 | 2111 | prepare_menu_bars (); |
3007ebfb | 2112 | redisplay_preserve_echo_area (18); |
86a5659e JB |
2113 | } |
2114 | } | |
2115 | } | |
2116 | waiting_for_ast = 0; | |
2117 | } | |
2118 | ||
2119 | /* Get rid of any pending QIO, when we are about to suspend | |
2120 | or when we want to throw away pending input. | |
2121 | We wait for a positive sign that the AST routine has run | |
2122 | and therefore there is no I/O request queued when we return. | |
2123 | SYS$SETAST is used to avoid a timing error. */ | |
2124 | ||
dfcf069d | 2125 | void |
86a5659e JB |
2126 | end_kbd_input () |
2127 | { | |
2128 | #ifdef ASTDEBUG | |
2129 | printf ("At end_kbd_input.\n"); | |
2130 | fflush (stdout); | |
2131 | sleep (1); | |
2132 | #endif | |
2133 | if (LIB$AST_IN_PROG ()) /* Don't wait if suspending from kbd_buffer_store_event! */ | |
2134 | { | |
0b0d3e0b | 2135 | SYS$CANCEL (fileno (CURTTY()->input)); |
86a5659e JB |
2136 | return; |
2137 | } | |
2138 | ||
2139 | SYS$SETAST (0); | |
2140 | /* Clear a flag, and tell ast routine above to set it. */ | |
2141 | SYS$CLREF (input_ef); | |
2142 | waiting_for_ast = 1; | |
2143 | stop_input = 1; | |
0b0d3e0b | 2144 | SYS$CANCEL (fileno (CURTTY()->input)); |
86a5659e JB |
2145 | SYS$SETAST (1); |
2146 | SYS$WAITFR (input_ef); | |
2147 | waiting_for_ast = 0; | |
2148 | } | |
2149 | ||
2150 | /* Wait for either input available or time interval expiry. */ | |
2151 | ||
dfcf069d | 2152 | void |
86a5659e JB |
2153 | input_wait_timeout (timeval) |
2154 | int timeval; /* Time to wait, in seconds */ | |
2155 | { | |
2156 | int time [2]; | |
2157 | static int zero = 0; | |
2158 | static int large = -10000000; | |
2159 | ||
2160 | LIB$EMUL (&timeval, &large, &zero, time); /* Convert to VMS format */ | |
2161 | ||
2162 | /* If already something, avoid doing system calls. */ | |
2163 | if (detect_input_pending ()) | |
2164 | { | |
2165 | return; | |
2166 | } | |
2167 | /* Clear a flag, and tell ast routine above to set it. */ | |
2168 | SYS$CLREF (input_ef); | |
2169 | waiting_for_ast = 1; | |
2170 | /* Check for timing error: ast happened while we were doing that. */ | |
2171 | if (!detect_input_pending ()) | |
2172 | { | |
2173 | /* No timing error: wait for flag to be set. */ | |
2174 | SYS$CANTIM (1, 0); | |
2175 | if (SYS$SETIMR (timer_ef, time, 0, 1) & 1) /* Set timer */ | |
2176 | SYS$WFLOR (timer_ef, timer_eflist); /* Wait for timer expiry or input */ | |
2177 | } | |
2178 | waiting_for_ast = 0; | |
2179 | } | |
2180 | ||
2181 | /* The standard `sleep' routine works some other way | |
2182 | and it stops working if you have ever quit out of it. | |
2183 | This one continues to work. */ | |
2184 | ||
2185 | sys_sleep (timeval) | |
2186 | int timeval; | |
2187 | { | |
2188 | int time [2]; | |
2189 | static int zero = 0; | |
2190 | static int large = -10000000; | |
177c0ea7 | 2191 | |
86a5659e JB |
2192 | LIB$EMUL (&timeval, &large, &zero, time); /* Convert to VMS format */ |
2193 | ||
2194 | SYS$CANTIM (1, 0); | |
2195 | if (SYS$SETIMR (timer_ef, time, 0, 1) & 1) /* Set timer */ | |
2196 | SYS$WAITFR (timer_ef); /* Wait for timer expiry only */ | |
2197 | } | |
2198 | ||
08633194 | 2199 | void |
23dab951 RS |
2200 | init_sigio (fd) |
2201 | int fd; | |
86a5659e JB |
2202 | { |
2203 | request_sigio (); | |
2204 | } | |
2205 | ||
0a125897 KL |
2206 | reset_sigio (fd) |
2207 | int fd; | |
86a5659e JB |
2208 | { |
2209 | unrequest_sigio (); | |
2210 | } | |
2211 | ||
08633194 | 2212 | void |
86a5659e JB |
2213 | request_sigio () |
2214 | { | |
6e5b2385 AS |
2215 | if (noninteractive) |
2216 | return; | |
86a5659e JB |
2217 | croak ("request sigio"); |
2218 | } | |
2219 | ||
08633194 | 2220 | void |
86a5659e JB |
2221 | unrequest_sigio () |
2222 | { | |
6e5b2385 AS |
2223 | if (noninteractive) |
2224 | return; | |
86a5659e JB |
2225 | croak ("unrequest sigio"); |
2226 | } | |
2227 | ||
2228 | #endif /* VMS */ | |
2229 | \f | |
2230 | /* Note that VMS compiler won't accept defined (CANNOT_DUMP). */ | |
2231 | #ifndef CANNOT_DUMP | |
2232 | #define NEED_STARTS | |
2233 | #endif | |
2234 | ||
2235 | #ifndef SYSTEM_MALLOC | |
2236 | #ifndef NEED_STARTS | |
2237 | #define NEED_STARTS | |
2238 | #endif | |
2239 | #endif | |
2240 | ||
2241 | #ifdef NEED_STARTS | |
2242 | /* Some systems that cannot dump also cannot implement these. */ | |
2243 | ||
2244 | /* | |
2245 | * Return the address of the start of the text segment prior to | |
2246 | * doing an unexec. After unexec the return value is undefined. | |
2247 | * See crt0.c for further explanation and _start. | |
2248 | * | |
2249 | */ | |
2250 | ||
c0c9ac48 | 2251 | #if !(defined (__NetBSD__) && defined (__ELF__)) |
260fe597 | 2252 | #ifndef HAVE_TEXT_START |
86a5659e JB |
2253 | char * |
2254 | start_of_text () | |
2255 | { | |
2256 | #ifdef TEXT_START | |
2257 | return ((char *) TEXT_START); | |
2258 | #else | |
86a5659e JB |
2259 | extern int _start (); |
2260 | return ((char *) _start); | |
86a5659e JB |
2261 | #endif /* TEXT_START */ |
2262 | } | |
260fe597 | 2263 | #endif /* not HAVE_TEXT_START */ |
c0c9ac48 | 2264 | #endif |
86a5659e JB |
2265 | |
2266 | /* | |
2267 | * Return the address of the start of the data segment prior to | |
2268 | * doing an unexec. After unexec the return value is undefined. | |
2269 | * See crt0.c for further information and definition of data_start. | |
2270 | * | |
2271 | * Apparently, on BSD systems this is etext at startup. On | |
2272 | * USG systems (swapping) this is highly mmu dependent and | |
2273 | * is also dependent on whether or not the program is running | |
2274 | * with shared text. Generally there is a (possibly large) | |
2275 | * gap between end of text and start of data with shared text. | |
2276 | * | |
2277 | * On Uniplus+ systems with shared text, data starts at a | |
2278 | * fixed address. Each port (from a given oem) is generally | |
2279 | * different, and the specific value of the start of data can | |
2280 | * be obtained via the UniPlus+ specific "uvar" system call, | |
2281 | * however the method outlined in crt0.c seems to be more portable. | |
2282 | * | |
2283 | * Probably what will have to happen when a USG unexec is available, | |
2284 | * at least on UniPlus, is temacs will have to be made unshared so | |
2285 | * that text and data are contiguous. Then once loadup is complete, | |
2286 | * unexec will produce a shared executable where the data can be | |
ea5a0917 | 2287 | * at the normal shared text boundary and the startofdata variable |
86a5659e JB |
2288 | * will be patched by unexec to the correct value. |
2289 | * | |
2290 | */ | |
177c0ea7 | 2291 | |
be3abfa2 | 2292 | #ifndef start_of_data |
86a5659e JB |
2293 | char * |
2294 | start_of_data () | |
2295 | { | |
2296 | #ifdef DATA_START | |
2297 | return ((char *) DATA_START); | |
6c65530f JB |
2298 | #else |
2299 | #ifdef ORDINARY_LINK | |
2300 | /* | |
2301 | * This is a hack. Since we're not linking crt0.c or pre_crt0.c, | |
2302 | * data_start isn't defined. We take the address of environ, which | |
2303 | * is known to live at or near the start of the system crt0.c, and | |
2304 | * we don't sweat the handful of bytes that might lose. | |
2305 | */ | |
2306 | extern char **environ; | |
2307 | ||
c4ea52a6 | 2308 | return ((char *) &environ); |
86a5659e JB |
2309 | #else |
2310 | extern int data_start; | |
2311 | return ((char *) &data_start); | |
6c65530f JB |
2312 | #endif /* ORDINARY_LINK */ |
2313 | #endif /* DATA_START */ | |
86a5659e | 2314 | } |
be3abfa2 | 2315 | #endif /* start_of_data */ |
86a5659e | 2316 | #endif /* NEED_STARTS (not CANNOT_DUMP or not SYSTEM_MALLOC) */ |
86a5659e | 2317 | \f |
c0c86835 KH |
2318 | /* init_system_name sets up the string for the Lisp function |
2319 | system-name to return. */ | |
86a5659e JB |
2320 | |
2321 | #ifdef BSD4_1 | |
2322 | #include <whoami.h> | |
2323 | #endif | |
2324 | ||
c0c86835 | 2325 | extern Lisp_Object Vsystem_name; |
86a5659e | 2326 | |
f8a80313 | 2327 | #ifndef BSD4_1 |
f8a80313 RS |
2328 | #ifndef VMS |
2329 | #ifdef HAVE_SOCKETS | |
2330 | #include <sys/socket.h> | |
2331 | #include <netdb.h> | |
2332 | #endif /* HAVE_SOCKETS */ | |
2333 | #endif /* not VMS */ | |
f8a80313 RS |
2334 | #endif /* not BSD4_1 */ |
2335 | ||
8581cd64 KH |
2336 | #ifdef TRY_AGAIN |
2337 | #ifndef HAVE_H_ERRNO | |
2338 | extern int h_errno; | |
2339 | #endif | |
2340 | #endif /* TRY_AGAIN */ | |
2341 | ||
c0c86835 KH |
2342 | void |
2343 | init_system_name () | |
86a5659e | 2344 | { |
86a5659e | 2345 | #ifdef BSD4_1 |
c0c86835 | 2346 | Vsystem_name = build_string (sysname); |
67004ffb | 2347 | #else |
67004ffb | 2348 | #ifdef VMS |
c0c86835 KH |
2349 | char *sp, *end; |
2350 | if ((sp = egetenv ("SYS$NODE")) == 0) | |
2351 | Vsystem_name = build_string ("vax-vms"); | |
2352 | else if ((end = index (sp, ':')) == 0) | |
2353 | Vsystem_name = build_string (sp); | |
2354 | else | |
2355 | Vsystem_name = make_string (sp, end - sp); | |
67004ffb | 2356 | #else |
210b2b4f | 2357 | #ifndef HAVE_GETHOSTNAME |
c0c86835 KH |
2358 | struct utsname uts; |
2359 | uname (&uts); | |
2360 | Vsystem_name = build_string (uts.nodename); | |
67004ffb | 2361 | #else /* HAVE_GETHOSTNAME */ |
cc6e7269 | 2362 | unsigned int hostname_size = 256; |
c0c86835 KH |
2363 | char *hostname = (char *) alloca (hostname_size); |
2364 | ||
2365 | /* Try to get the host name; if the buffer is too short, try | |
2366 | again. Apparently, the only indication gethostname gives of | |
2367 | whether the buffer was large enough is the presence or absence | |
2368 | of a '\0' in the string. Eech. */ | |
2369 | for (;;) | |
2370 | { | |
2371 | gethostname (hostname, hostname_size - 1); | |
2372 | hostname[hostname_size - 1] = '\0'; | |
2373 | ||
2374 | /* Was the buffer large enough for the '\0'? */ | |
2375 | if (strlen (hostname) < hostname_size - 1) | |
2376 | break; | |
2377 | ||
2378 | hostname_size <<= 1; | |
2379 | hostname = (char *) alloca (hostname_size); | |
2380 | } | |
67004ffb | 2381 | #ifdef HAVE_SOCKETS |
c0c86835 KH |
2382 | /* Turn the hostname into the official, fully-qualified hostname. |
2383 | Don't do this if we're going to dump; this can confuse system | |
2384 | libraries on some machines and make the dumped emacs core dump. */ | |
67004ffb | 2385 | #ifndef CANNOT_DUMP |
c0c86835 | 2386 | if (initialized) |
67004ffb | 2387 | #endif /* not CANNOT_DUMP */ |
960d894c KH |
2388 | if (! index (hostname, '.')) |
2389 | { | |
960d894c | 2390 | int count; |
3d66b985 JD |
2391 | #ifdef HAVE_GETADDRINFO |
2392 | struct addrinfo *res; | |
2393 | struct addrinfo hints; | |
2394 | int ret; | |
2395 | ||
2396 | memset (&hints, 0, sizeof(hints)); | |
2397 | hints.ai_socktype = SOCK_STREAM; | |
2398 | hints.ai_flags = AI_CANONNAME; | |
2399 | ||
960d894c KH |
2400 | for (count = 0;; count++) |
2401 | { | |
3d66b985 JD |
2402 | if ((ret = getaddrinfo (hostname, NULL, &hints, &res)) == 0 |
2403 | || ret != EAI_AGAIN) | |
2404 | break; | |
2405 | ||
2406 | if (count >= 5) | |
2407 | break; | |
2408 | Fsleep_for (make_number (1), Qnil); | |
2409 | } | |
2410 | ||
2411 | if (ret == 0) | |
2412 | { | |
2413 | struct addrinfo *it = res; | |
2414 | while (it) | |
2415 | { | |
2416 | char *fqdn = it->ai_canonname; | |
2417 | if (fqdn && index (fqdn, '.') | |
2418 | && strcmp (fqdn, "localhost.localdomain") != 0) | |
2419 | break; | |
2420 | it = it->ai_next; | |
2421 | } | |
2422 | if (it) | |
2423 | { | |
2424 | hostname = alloca (strlen (it->ai_canonname) + 1); | |
2425 | strcpy (hostname, it->ai_canonname); | |
2426 | } | |
2427 | freeaddrinfo (res); | |
2428 | } | |
2429 | #else /* !HAVE_GETADDRINFO */ | |
2430 | struct hostent *hp; | |
2431 | for (count = 0;; count++) | |
2432 | { | |
2433 | ||
e24f1d55 | 2434 | #ifdef TRY_AGAIN |
960d894c | 2435 | h_errno = 0; |
e24f1d55 | 2436 | #endif |
960d894c | 2437 | hp = gethostbyname (hostname); |
efa04277 | 2438 | #ifdef TRY_AGAIN |
960d894c KH |
2439 | if (! (hp == 0 && h_errno == TRY_AGAIN)) |
2440 | #endif | |
3d66b985 | 2441 | |
960d894c | 2442 | break; |
3d66b985 | 2443 | |
960d894c KH |
2444 | if (count >= 5) |
2445 | break; | |
2446 | Fsleep_for (make_number (1), Qnil); | |
2447 | } | |
3d66b985 | 2448 | |
960d894c KH |
2449 | if (hp) |
2450 | { | |
2451 | char *fqdn = (char *) hp->h_name; | |
7c15926f | 2452 | #if 0 |
960d894c | 2453 | char *p; |
7c15926f | 2454 | #endif |
960d894c KH |
2455 | |
2456 | if (!index (fqdn, '.')) | |
2457 | { | |
2458 | /* We still don't have a fully qualified domain name. | |
2459 | Try to find one in the list of alternate names */ | |
2460 | char **alias = hp->h_aliases; | |
923721f4 CY |
2461 | while (*alias |
2462 | && (!index (*alias, '.') | |
2463 | || !strcmp (*alias, "localhost.localdomain"))) | |
960d894c KH |
2464 | alias++; |
2465 | if (*alias) | |
2466 | fqdn = *alias; | |
2467 | } | |
2468 | hostname = fqdn; | |
ab1649fe | 2469 | #if 0 |
960d894c KH |
2470 | /* Convert the host name to lower case. */ |
2471 | /* Using ctype.h here would introduce a possible locale | |
2472 | dependence that is probably wrong for hostnames. */ | |
2473 | p = hostname; | |
2474 | while (*p) | |
2475 | { | |
2476 | if (*p >= 'A' && *p <= 'Z') | |
2477 | *p += 'a' - 'A'; | |
2478 | p++; | |
2479 | } | |
2480 | #endif | |
2481 | } | |
3d66b985 | 2482 | #endif /* !HAVE_GETADDRINFO */ |
960d894c | 2483 | } |
67004ffb | 2484 | #endif /* HAVE_SOCKETS */ |
6250a9db KH |
2485 | /* We used to try using getdomainname here, |
2486 | but NIIBE Yutaka <gniibe@etl.go.jp> says that | |
0b93aa53 RS |
2487 | getdomainname gets the NIS/YP domain which often is not the same |
2488 | as in Internet domain name. */ | |
6250a9db KH |
2489 | #if 0 /* Turned off because sysinfo is not really likely to return the |
2490 | correct Internet domain. */ | |
0b93aa53 | 2491 | #if (HAVE_SYSINFO && defined (SI_SRPC_DOMAIN)) |
b05af5d3 PE |
2492 | if (! index (hostname, '.')) |
2493 | { | |
2494 | /* The hostname is not fully qualified. Append the domain name. */ | |
2495 | ||
2496 | int hostlen = strlen (hostname); | |
2497 | int domain_size = 256; | |
2498 | ||
2499 | for (;;) | |
2500 | { | |
825e7e55 RS |
2501 | char *domain = (char *) alloca (domain_size + 1); |
2502 | char *fqdn = (char *) alloca (hostlen + 1 + domain_size + 1); | |
b05af5d3 PE |
2503 | int sys_domain_size = sysinfo (SI_SRPC_DOMAIN, domain, domain_size); |
2504 | if (sys_domain_size <= 0) | |
2505 | break; | |
2506 | if (domain_size < sys_domain_size) | |
2507 | { | |
2508 | domain_size = sys_domain_size; | |
2509 | continue; | |
2510 | } | |
b05af5d3 | 2511 | strcpy (fqdn, hostname); |
825e7e55 RS |
2512 | if (domain[0] == '.') |
2513 | strcpy (fqdn + hostlen, domain); | |
9b80a5aa | 2514 | else if (domain[0] != 0) |
825e7e55 RS |
2515 | { |
2516 | fqdn[hostlen] = '.'; | |
2517 | strcpy (fqdn + hostlen + 1, domain); | |
2518 | } | |
b05af5d3 PE |
2519 | hostname = fqdn; |
2520 | break; | |
2521 | } | |
2522 | } | |
0b93aa53 | 2523 | #endif /* HAVE_SYSINFO && defined (SI_SRPC_DOMAIN) */ |
6250a9db | 2524 | #endif /* 0 */ |
c0c86835 | 2525 | Vsystem_name = build_string (hostname); |
67004ffb | 2526 | #endif /* HAVE_GETHOSTNAME */ |
210b2b4f | 2527 | #endif /* VMS */ |
67004ffb | 2528 | #endif /* BSD4_1 */ |
c0c86835 KH |
2529 | { |
2530 | unsigned char *p; | |
d5db4077 | 2531 | for (p = SDATA (Vsystem_name); *p; p++) |
c0c86835 KH |
2532 | if (*p == ' ' || *p == '\t') |
2533 | *p = '-'; | |
2534 | } | |
67004ffb | 2535 | } |
86a5659e | 2536 | \f |
7964ba9e | 2537 | #ifndef MSDOS |
86a5659e | 2538 | #ifndef VMS |
4624371d | 2539 | #if !defined (HAVE_SELECT) |
86a5659e | 2540 | |
86d1f23a KH |
2541 | #include "sysselect.h" |
2542 | #undef select | |
2543 | ||
2544 | #if defined (HAVE_X_WINDOWS) && !defined (HAVE_SELECT) | |
86a5659e JB |
2545 | /* Cause explanatory error message at compile time, |
2546 | since the select emulation is not good enough for X. */ | |
2547 | int *x = &x_windows_lose_if_no_select_system_call; | |
2548 | #endif | |
2549 | ||
2550 | /* Emulate as much as select as is possible under 4.1 and needed by Gnu Emacs | |
2551 | * Only checks read descriptors. | |
2552 | */ | |
2553 | /* How long to wait between checking fds in select */ | |
2554 | #define SELECT_PAUSE 1 | |
2555 | int select_alarmed; | |
2556 | ||
2557 | /* For longjmp'ing back to read_input_waiting. */ | |
2558 | ||
2559 | jmp_buf read_alarm_throw; | |
2560 | ||
2561 | /* Nonzero if the alarm signal should throw back to read_input_waiting. | |
2562 | The read_socket_hook function sets this to 1 while it is waiting. */ | |
2563 | ||
2564 | int read_alarm_should_throw; | |
2565 | ||
2566 | SIGTYPE | |
2567 | select_alarm () | |
2568 | { | |
2569 | select_alarmed = 1; | |
2570 | #ifdef BSD4_1 | |
2571 | sigrelse (SIGALRM); | |
2572 | #else /* not BSD4_1 */ | |
2573 | signal (SIGALRM, SIG_IGN); | |
2574 | #endif /* not BSD4_1 */ | |
333f1b6f | 2575 | SIGNAL_THREAD_CHECK (SIGALRM); |
86a5659e JB |
2576 | if (read_alarm_should_throw) |
2577 | longjmp (read_alarm_throw, 1); | |
2578 | } | |
2579 | ||
9d9f1812 | 2580 | #ifndef WINDOWSNT |
86a5659e JB |
2581 | /* Only rfds are checked. */ |
2582 | int | |
86d1f23a | 2583 | sys_select (nfds, rfds, wfds, efds, timeout) |
86a5659e | 2584 | int nfds; |
86d1f23a KH |
2585 | SELECT_TYPE *rfds, *wfds, *efds; |
2586 | EMACS_TIME *timeout; | |
86a5659e | 2587 | { |
2246281f KL |
2588 | /* XXX This needs to be updated for multi-tty support. Is there |
2589 | anybody who needs to emulate select these days? */ | |
2590 | int ravail = 0; | |
86d1f23a KH |
2591 | SELECT_TYPE orfds; |
2592 | int timeoutval; | |
2593 | int *local_timeout; | |
86a5659e JB |
2594 | extern int proc_buffered_char[]; |
2595 | #ifndef subprocesses | |
2596 | int process_tick = 0, update_tick = 0; | |
2597 | #else | |
2598 | extern int process_tick, update_tick; | |
2599 | #endif | |
86a5659e JB |
2600 | unsigned char buf; |
2601 | ||
86d1f23a KH |
2602 | #if defined (HAVE_SELECT) && defined (HAVE_X_WINDOWS) |
2603 | /* If we're using X, then the native select will work; we only need the | |
2604 | emulation for non-X usage. */ | |
2246281f | 2605 | if (!NILP (Vinitial_window_system)) |
86d1f23a KH |
2606 | return select (nfds, rfds, wfds, efds, timeout); |
2607 | #endif | |
2608 | timeoutval = timeout ? EMACS_SECS (*timeout) : 100000; | |
2609 | local_timeout = &timeoutval; | |
2610 | FD_ZERO (&orfds); | |
86a5659e JB |
2611 | if (rfds) |
2612 | { | |
2613 | orfds = *rfds; | |
86d1f23a | 2614 | FD_ZERO (rfds); |
86a5659e JB |
2615 | } |
2616 | if (wfds) | |
86d1f23a | 2617 | FD_ZERO (wfds); |
86a5659e | 2618 | if (efds) |
86d1f23a | 2619 | FD_ZERO (efds); |
86a5659e JB |
2620 | |
2621 | /* If we are looking only for the terminal, with no timeout, | |
2622 | just read it and wait -- that's more efficient. */ | |
86d1f23a KH |
2623 | if (*local_timeout == 100000 && process_tick == update_tick |
2624 | && FD_ISSET (0, &orfds)) | |
86a5659e | 2625 | { |
86d1f23a KH |
2626 | int fd; |
2627 | for (fd = 1; fd < nfds; ++fd) | |
2628 | if (FD_ISSET (fd, &orfds)) | |
2629 | goto hardway; | |
86a5659e JB |
2630 | if (! detect_input_pending ()) |
2631 | read_input_waiting (); | |
86d1f23a | 2632 | FD_SET (0, rfds); |
86a5659e JB |
2633 | return 1; |
2634 | } | |
2635 | ||
86d1f23a | 2636 | hardway: |
86a5659e JB |
2637 | /* Once a second, till the timer expires, check all the flagged read |
2638 | * descriptors to see if any input is available. If there is some then | |
2639 | * set the corresponding bit in the return copy of rfds. | |
177c0ea7 | 2640 | */ |
86a5659e JB |
2641 | while (1) |
2642 | { | |
86d1f23a | 2643 | register int to_check, fd; |
86a5659e JB |
2644 | |
2645 | if (rfds) | |
2646 | { | |
86d1f23a | 2647 | for (to_check = nfds, fd = 0; --to_check >= 0; fd++) |
86a5659e | 2648 | { |
86d1f23a | 2649 | if (FD_ISSET (fd, &orfds)) |
86a5659e JB |
2650 | { |
2651 | int avail = 0, status = 0; | |
2652 | ||
86d1f23a | 2653 | if (fd == 0) |
86a5659e JB |
2654 | avail = detect_input_pending (); /* Special keyboard handler */ |
2655 | else | |
2656 | { | |
2657 | #ifdef FIONREAD | |
2658 | status = ioctl (fd, FIONREAD, &avail); | |
2659 | #else /* no FIONREAD */ | |
2660 | /* Hoping it will return -1 if nothing available | |
2661 | or 0 if all 0 chars requested are read. */ | |
2662 | if (proc_buffered_char[fd] >= 0) | |
2663 | avail = 1; | |
2664 | else | |
2665 | { | |
2666 | avail = read (fd, &buf, 1); | |
2667 | if (avail > 0) | |
2668 | proc_buffered_char[fd] = buf; | |
2669 | } | |
2670 | #endif /* no FIONREAD */ | |
2671 | } | |
2672 | if (status >= 0 && avail > 0) | |
2673 | { | |
86d1f23a | 2674 | FD_SET (fd, rfds); |
86a5659e JB |
2675 | ravail++; |
2676 | } | |
2677 | } | |
2678 | } | |
2679 | } | |
2680 | if (*local_timeout == 0 || ravail != 0 || process_tick != update_tick) | |
2681 | break; | |
ffdcc91d GM |
2682 | |
2683 | turn_on_atimers (0); | |
2684 | signal (SIGALRM, select_alarm); | |
86a5659e JB |
2685 | select_alarmed = 0; |
2686 | alarm (SELECT_PAUSE); | |
177c0ea7 | 2687 | |
86a5659e JB |
2688 | /* Wait for a SIGALRM (or maybe a SIGTINT) */ |
2689 | while (select_alarmed == 0 && *local_timeout != 0 | |
2690 | && process_tick == update_tick) | |
2691 | { | |
2692 | /* If we are interested in terminal input, | |
2693 | wait by reading the terminal. | |
2694 | That makes instant wakeup for terminal input at least. */ | |
86d1f23a | 2695 | if (FD_ISSET (0, &orfds)) |
86a5659e JB |
2696 | { |
2697 | read_input_waiting (); | |
2698 | if (detect_input_pending ()) | |
2699 | select_alarmed = 1; | |
2700 | } | |
2701 | else | |
2702 | pause (); | |
2703 | } | |
2704 | (*local_timeout) -= SELECT_PAUSE; | |
177c0ea7 | 2705 | |
ffdcc91d GM |
2706 | /* Reset the old alarm if there was one. */ |
2707 | turn_on_atimers (1); | |
177c0ea7 | 2708 | |
86a5659e JB |
2709 | if (*local_timeout == 0) /* Stop on timer being cleared */ |
2710 | break; | |
2711 | } | |
2712 | return ravail; | |
2713 | } | |
30790a37 | 2714 | #endif /* not WINDOWSNT */ |
86a5659e JB |
2715 | |
2716 | /* Read keyboard input into the standard buffer, | |
2717 | waiting for at least one character. */ | |
2718 | ||
dfcf069d | 2719 | void |
86a5659e JB |
2720 | read_input_waiting () |
2721 | { | |
2246281f KL |
2722 | /* XXX This needs to be updated for multi-tty support. Is there |
2723 | anybody who needs to emulate select these days? */ | |
34567704 JB |
2724 | int nread, i; |
2725 | extern int quit_char; | |
86a5659e JB |
2726 | |
2727 | if (read_socket_hook) | |
2728 | { | |
9f893fc6 KS |
2729 | struct input_event hold_quit; |
2730 | ||
2731 | EVENT_INIT (hold_quit); | |
2732 | hold_quit.kind = NO_EVENT; | |
2733 | ||
86a5659e JB |
2734 | read_alarm_should_throw = 0; |
2735 | if (! setjmp (read_alarm_throw)) | |
9f893fc6 | 2736 | nread = (*read_socket_hook) (0, 1, &hold_quit); |
86a5659e JB |
2737 | else |
2738 | nread = -1; | |
f4a7e5bd | 2739 | |
9f893fc6 KS |
2740 | if (hold_quit.kind != NO_EVENT) |
2741 | kbd_buffer_store_event (&hold_quit); | |
86a5659e JB |
2742 | } |
2743 | else | |
86a5659e | 2744 | { |
50acda85 | 2745 | struct input_event e; |
f4a7e5bd RS |
2746 | char buf[3]; |
2747 | nread = read (fileno (stdin), buf, 1); | |
50acda85 | 2748 | EVENT_INIT (e); |
f4a7e5bd RS |
2749 | |
2750 | /* Scan the chars for C-g and store them in kbd_buffer. */ | |
e43bd4f5 | 2751 | e.kind = ASCII_KEYSTROKE_EVENT; |
2d064114 | 2752 | e.frame_or_window = selected_frame; |
f4a7e5bd RS |
2753 | e.modifiers = 0; |
2754 | for (i = 0; i < nread; i++) | |
a00d5589 | 2755 | { |
f4a7e5bd RS |
2756 | /* Convert chars > 0177 to meta events if desired. |
2757 | We do this under the same conditions that read_avail_input does. */ | |
2758 | if (read_socket_hook == 0) | |
2759 | { | |
2760 | /* If the user says she has a meta key, then believe her. */ | |
2761 | if (meta_key == 1 && (buf[i] & 0x80)) | |
2762 | e.modifiers = meta_modifier; | |
2763 | if (meta_key != 2) | |
2764 | buf[i] &= ~0x80; | |
2765 | } | |
b95520f5 | 2766 | |
c81d47b4 | 2767 | XSETINT (e.code, buf[i]); |
f4a7e5bd RS |
2768 | kbd_buffer_store_event (&e); |
2769 | /* Don't look at input that follows a C-g too closely. | |
2770 | This reduces lossage due to autorepeat on C-g. */ | |
2771 | if (buf[i] == quit_char) | |
2772 | break; | |
2773 | } | |
86a5659e JB |
2774 | } |
2775 | } | |
2776 | ||
4624371d | 2777 | #if !defined (HAVE_SELECT) |
819b8f00 KL |
2778 | #define select sys_select |
2779 | #endif | |
2780 | ||
86a5659e JB |
2781 | #endif /* not HAVE_SELECT */ |
2782 | #endif /* not VMS */ | |
7964ba9e | 2783 | #endif /* not MSDOS */ |
86a5659e JB |
2784 | \f |
2785 | #ifdef BSD4_1 | |
08633194 | 2786 | void |
23dab951 RS |
2787 | init_sigio (fd) |
2788 | int fd; | |
86a5659e JB |
2789 | { |
2790 | if (noninteractive) | |
2791 | return; | |
2792 | lmode = LINTRUP | lmode; | |
23dab951 | 2793 | ioctl (fd, TIOCLSET, &lmode); |
86a5659e JB |
2794 | } |
2795 | ||
dfcf069d | 2796 | void |
0a125897 KL |
2797 | reset_sigio (fd) |
2798 | int fd; | |
86a5659e JB |
2799 | { |
2800 | if (noninteractive) | |
2801 | return; | |
2802 | lmode = ~LINTRUP & lmode; | |
0a125897 | 2803 | ioctl (fd, TIOCLSET, &lmode); |
86a5659e JB |
2804 | } |
2805 | ||
08633194 | 2806 | void |
86a5659e JB |
2807 | request_sigio () |
2808 | { | |
6e5b2385 AS |
2809 | if (noninteractive) |
2810 | return; | |
86a5659e JB |
2811 | sigrelse (SIGTINT); |
2812 | ||
2813 | interrupts_deferred = 0; | |
2814 | } | |
2815 | ||
08633194 | 2816 | void |
86a5659e JB |
2817 | unrequest_sigio () |
2818 | { | |
6e5b2385 AS |
2819 | if (noninteractive) |
2820 | return; | |
86a5659e JB |
2821 | sighold (SIGTINT); |
2822 | ||
2823 | interrupts_deferred = 1; | |
2824 | } | |
2825 | ||
2826 | /* still inside #ifdef BSD4_1 */ | |
2827 | #ifdef subprocesses | |
2828 | ||
2829 | int sigheld; /* Mask of held signals */ | |
2830 | ||
dfcf069d | 2831 | void |
86a5659e JB |
2832 | sigholdx (signum) |
2833 | int signum; | |
2834 | { | |
2835 | sigheld |= sigbit (signum); | |
2836 | sighold (signum); | |
2837 | } | |
2838 | ||
dfcf069d | 2839 | void |
86a5659e JB |
2840 | sigisheld (signum) |
2841 | int signum; | |
2842 | { | |
2843 | sigheld |= sigbit (signum); | |
2844 | } | |
2845 | ||
dfcf069d | 2846 | void |
86a5659e JB |
2847 | sigunhold (signum) |
2848 | int signum; | |
2849 | { | |
2850 | sigheld &= ~sigbit (signum); | |
2851 | sigrelse (signum); | |
2852 | } | |
2853 | ||
dfcf069d | 2854 | void |
86a5659e JB |
2855 | sigfree () /* Free all held signals */ |
2856 | { | |
2857 | int i; | |
2858 | for (i = 0; i < NSIG; i++) | |
2859 | if (sigheld & sigbit (i)) | |
2860 | sigrelse (i); | |
2861 | sigheld = 0; | |
2862 | } | |
2863 | ||
dfcf069d | 2864 | int |
86a5659e JB |
2865 | sigbit (i) |
2866 | { | |
2867 | return 1 << (i - 1); | |
2868 | } | |
2869 | #endif /* subprocesses */ | |
2870 | #endif /* BSD4_1 */ | |
2871 | \f | |
2872 | /* POSIX signals support - DJB */ | |
2873 | /* Anyone with POSIX signals should have ANSI C declarations */ | |
2874 | ||
2875 | #ifdef POSIX_SIGNALS | |
2876 | ||
c639b0e3 | 2877 | sigset_t empty_mask, full_mask; |
86a5659e | 2878 | |
86a5659e JB |
2879 | signal_handler_t |
2880 | sys_signal (int signal_number, signal_handler_t action) | |
2881 | { | |
c639b0e3 | 2882 | struct sigaction new_action, old_action; |
86a5659e | 2883 | sigemptyset (&new_action.sa_mask); |
e5c99298 | 2884 | new_action.sa_handler = action; |
275464e7 | 2885 | #if defined (SA_RESTART) && ! defined (BROKEN_SA_RESTART) && !defined(SYNC_INPUT) |
25ab68af | 2886 | /* Emacs mostly works better with restartable system services. If this |
55fafcf0 RS |
2887 | flag exists, we probably want to turn it on here. |
2888 | However, on some systems this resets the timeout of `select' | |
2889 | which means that `select' never finishes if it keeps getting signals. | |
2890 | BROKEN_SA_RESTART is defined on those systems. */ | |
275464e7 SM |
2891 | /* It's not clear why the comment above says "mostly works better". --Stef |
2892 | When SYNC_INPUT is set, we don't want SA_RESTART because we need to poll | |
2893 | for pending input so we need long-running syscalls to be interrupted | |
2894 | after a signal that sets the interrupt_input_pending flag. */ | |
25ab68af RS |
2895 | new_action.sa_flags = SA_RESTART; |
2896 | #else | |
4a785b6e | 2897 | new_action.sa_flags = 0; |
25ab68af | 2898 | #endif |
d32b2f3c | 2899 | sigaction (signal_number, &new_action, &old_action); |
e5c99298 | 2900 | return (old_action.sa_handler); |
86a5659e JB |
2901 | } |
2902 | ||
e065a56e JB |
2903 | #ifndef __GNUC__ |
2904 | /* If we're compiling with GCC, we don't need this function, since it | |
2905 | can be written as a macro. */ | |
2906 | sigset_t | |
2907 | sys_sigmask (int sig) | |
2908 | { | |
2909 | sigset_t mask; | |
2910 | sigemptyset (&mask); | |
2911 | sigaddset (&mask, sig); | |
2912 | return mask; | |
2913 | } | |
2914 | #endif | |
2915 | ||
86a5659e JB |
2916 | /* I'd like to have these guys return pointers to the mask storage in here, |
2917 | but there'd be trouble if the code was saving multiple masks. I'll be | |
2918 | safe and pass the structure. It normally won't be more than 2 bytes | |
2919 | anyhow. - DJB */ | |
2920 | ||
2921 | sigset_t | |
2922 | sys_sigblock (sigset_t new_mask) | |
2923 | { | |
2924 | sigset_t old_mask; | |
2925 | sigprocmask (SIG_BLOCK, &new_mask, &old_mask); | |
2926 | return (old_mask); | |
2927 | } | |
2928 | ||
2929 | sigset_t | |
2930 | sys_sigunblock (sigset_t new_mask) | |
2931 | { | |
2932 | sigset_t old_mask; | |
2933 | sigprocmask (SIG_UNBLOCK, &new_mask, &old_mask); | |
2934 | return (old_mask); | |
2935 | } | |
2936 | ||
2937 | sigset_t | |
2938 | sys_sigsetmask (sigset_t new_mask) | |
2939 | { | |
2940 | sigset_t old_mask; | |
2941 | sigprocmask (SIG_SETMASK, &new_mask, &old_mask); | |
2942 | return (old_mask); | |
2943 | } | |
2944 | ||
2945 | #endif /* POSIX_SIGNALS */ | |
2946 | \f | |
b80263be | 2947 | #if !defined HAVE_STRSIGNAL && !HAVE_DECL_SYS_SIGLIST |
ca9c0567 PE |
2948 | static char *my_sys_siglist[NSIG]; |
2949 | # ifdef sys_siglist | |
2950 | # undef sys_siglist | |
2951 | # endif | |
2952 | # define sys_siglist my_sys_siglist | |
2953 | #endif | |
2954 | ||
2955 | void | |
2956 | init_signals () | |
2957 | { | |
2958 | #ifdef POSIX_SIGNALS | |
2959 | sigemptyset (&empty_mask); | |
2960 | sigfillset (&full_mask); | |
2961 | #endif | |
2962 | ||
b80263be | 2963 | #if !defined HAVE_STRSIGNAL && !HAVE_DECL_SYS_SIGLIST |
ca9c0567 PE |
2964 | if (! initialized) |
2965 | { | |
2966 | # ifdef SIGABRT | |
2967 | sys_siglist[SIGABRT] = "Aborted"; | |
2968 | # endif | |
2969 | # ifdef SIGAIO | |
2970 | sys_siglist[SIGAIO] = "LAN I/O interrupt"; | |
2971 | # endif | |
2972 | # ifdef SIGALRM | |
2973 | sys_siglist[SIGALRM] = "Alarm clock"; | |
2974 | # endif | |
2975 | # ifdef SIGBUS | |
2976 | sys_siglist[SIGBUS] = "Bus error"; | |
2977 | # endif | |
2978 | # ifdef SIGCLD | |
2979 | sys_siglist[SIGCLD] = "Child status changed"; | |
2980 | # endif | |
2981 | # ifdef SIGCHLD | |
2982 | sys_siglist[SIGCHLD] = "Child status changed"; | |
2983 | # endif | |
2984 | # ifdef SIGCONT | |
2985 | sys_siglist[SIGCONT] = "Continued"; | |
2986 | # endif | |
2987 | # ifdef SIGDANGER | |
2988 | sys_siglist[SIGDANGER] = "Swap space dangerously low"; | |
2989 | # endif | |
2990 | # ifdef SIGDGNOTIFY | |
2991 | sys_siglist[SIGDGNOTIFY] = "Notification message in queue"; | |
2992 | # endif | |
2993 | # ifdef SIGEMT | |
2994 | sys_siglist[SIGEMT] = "Emulation trap"; | |
2995 | # endif | |
2996 | # ifdef SIGFPE | |
2997 | sys_siglist[SIGFPE] = "Arithmetic exception"; | |
2998 | # endif | |
2999 | # ifdef SIGFREEZE | |
3000 | sys_siglist[SIGFREEZE] = "SIGFREEZE"; | |
3001 | # endif | |
3002 | # ifdef SIGGRANT | |
3003 | sys_siglist[SIGGRANT] = "Monitor mode granted"; | |
3004 | # endif | |
3005 | # ifdef SIGHUP | |
3006 | sys_siglist[SIGHUP] = "Hangup"; | |
3007 | # endif | |
3008 | # ifdef SIGILL | |
3009 | sys_siglist[SIGILL] = "Illegal instruction"; | |
3010 | # endif | |
3011 | # ifdef SIGINT | |
3012 | sys_siglist[SIGINT] = "Interrupt"; | |
3013 | # endif | |
3014 | # ifdef SIGIO | |
3015 | sys_siglist[SIGIO] = "I/O possible"; | |
3016 | # endif | |
3017 | # ifdef SIGIOINT | |
3018 | sys_siglist[SIGIOINT] = "I/O intervention required"; | |
3019 | # endif | |
3020 | # ifdef SIGIOT | |
3021 | sys_siglist[SIGIOT] = "IOT trap"; | |
3022 | # endif | |
3023 | # ifdef SIGKILL | |
3024 | sys_siglist[SIGKILL] = "Killed"; | |
3025 | # endif | |
3026 | # ifdef SIGLOST | |
3027 | sys_siglist[SIGLOST] = "Resource lost"; | |
3028 | # endif | |
3029 | # ifdef SIGLWP | |
3030 | sys_siglist[SIGLWP] = "SIGLWP"; | |
3031 | # endif | |
3032 | # ifdef SIGMSG | |
3033 | sys_siglist[SIGMSG] = "Monitor mode data available"; | |
3034 | # endif | |
3035 | # ifdef SIGPHONE | |
3036 | sys_siglist[SIGWIND] = "SIGPHONE"; | |
3037 | # endif | |
3038 | # ifdef SIGPIPE | |
3039 | sys_siglist[SIGPIPE] = "Broken pipe"; | |
3040 | # endif | |
3041 | # ifdef SIGPOLL | |
3042 | sys_siglist[SIGPOLL] = "Pollable event occurred"; | |
3043 | # endif | |
3044 | # ifdef SIGPROF | |
3045 | sys_siglist[SIGPROF] = "Profiling timer expired"; | |
3046 | # endif | |
3047 | # ifdef SIGPTY | |
3048 | sys_siglist[SIGPTY] = "PTY I/O interrupt"; | |
3049 | # endif | |
3050 | # ifdef SIGPWR | |
3051 | sys_siglist[SIGPWR] = "Power-fail restart"; | |
3052 | # endif | |
3053 | # ifdef SIGQUIT | |
3054 | sys_siglist[SIGQUIT] = "Quit"; | |
3055 | # endif | |
3056 | # ifdef SIGRETRACT | |
3057 | sys_siglist[SIGRETRACT] = "Need to relinguish monitor mode"; | |
3058 | # endif | |
3059 | # ifdef SIGSAK | |
3060 | sys_siglist[SIGSAK] = "Secure attention"; | |
3061 | # endif | |
3062 | # ifdef SIGSEGV | |
3063 | sys_siglist[SIGSEGV] = "Segmentation violation"; | |
3064 | # endif | |
3065 | # ifdef SIGSOUND | |
3066 | sys_siglist[SIGSOUND] = "Sound completed"; | |
3067 | # endif | |
3068 | # ifdef SIGSTOP | |
3069 | sys_siglist[SIGSTOP] = "Stopped (signal)"; | |
3070 | # endif | |
3071 | # ifdef SIGSTP | |
3072 | sys_siglist[SIGSTP] = "Stopped (user)"; | |
3073 | # endif | |
3074 | # ifdef SIGSYS | |
3075 | sys_siglist[SIGSYS] = "Bad argument to system call"; | |
3076 | # endif | |
3077 | # ifdef SIGTERM | |
3078 | sys_siglist[SIGTERM] = "Terminated"; | |
3079 | # endif | |
3080 | # ifdef SIGTHAW | |
3081 | sys_siglist[SIGTHAW] = "SIGTHAW"; | |
3082 | # endif | |
3083 | # ifdef SIGTRAP | |
3084 | sys_siglist[SIGTRAP] = "Trace/breakpoint trap"; | |
3085 | # endif | |
3086 | # ifdef SIGTSTP | |
3087 | sys_siglist[SIGTSTP] = "Stopped (user)"; | |
3088 | # endif | |
3089 | # ifdef SIGTTIN | |
3090 | sys_siglist[SIGTTIN] = "Stopped (tty input)"; | |
3091 | # endif | |
3092 | # ifdef SIGTTOU | |
3093 | sys_siglist[SIGTTOU] = "Stopped (tty output)"; | |
3094 | # endif | |
3095 | # ifdef SIGURG | |
3096 | sys_siglist[SIGURG] = "Urgent I/O condition"; | |
3097 | # endif | |
3098 | # ifdef SIGUSR1 | |
3099 | sys_siglist[SIGUSR1] = "User defined signal 1"; | |
3100 | # endif | |
3101 | # ifdef SIGUSR2 | |
3102 | sys_siglist[SIGUSR2] = "User defined signal 2"; | |
3103 | # endif | |
3104 | # ifdef SIGVTALRM | |
3105 | sys_siglist[SIGVTALRM] = "Virtual timer expired"; | |
3106 | # endif | |
3107 | # ifdef SIGWAITING | |
3108 | sys_siglist[SIGWAITING] = "Process's LWPs are blocked"; | |
3109 | # endif | |
3110 | # ifdef SIGWINCH | |
3111 | sys_siglist[SIGWINCH] = "Window size changed"; | |
3112 | # endif | |
3113 | # ifdef SIGWIND | |
3114 | sys_siglist[SIGWIND] = "SIGWIND"; | |
3115 | # endif | |
3116 | # ifdef SIGXCPU | |
3117 | sys_siglist[SIGXCPU] = "CPU time limit exceeded"; | |
3118 | # endif | |
3119 | # ifdef SIGXFSZ | |
3120 | sys_siglist[SIGXFSZ] = "File size limit exceeded"; | |
3121 | # endif | |
3122 | } | |
b80263be | 3123 | #endif /* !defined HAVE_STRSIGNAL && !defined HAVE_DECL_SYS_SIGLIST */ |
ca9c0567 PE |
3124 | } |
3125 | \f | |
9927a7b1 | 3126 | #ifndef HAVE_RANDOM |
4bb8c8b7 KH |
3127 | #ifdef random |
3128 | #define HAVE_RANDOM | |
3129 | #endif | |
3130 | #endif | |
3131 | ||
3132 | /* Figure out how many bits the system's random number generator uses. | |
3133 | `random' and `lrand48' are assumed to return 31 usable bits. | |
3134 | BSD `rand' returns a 31 bit value but the low order bits are unusable; | |
3135 | so we'll shift it and treat it like the 15-bit USG `rand'. */ | |
3136 | ||
3137 | #ifndef RAND_BITS | |
3138 | # ifdef HAVE_RANDOM | |
3139 | # define RAND_BITS 31 | |
3140 | # else /* !HAVE_RANDOM */ | |
3141 | # ifdef HAVE_LRAND48 | |
3142 | # define RAND_BITS 31 | |
3143 | # define random lrand48 | |
3144 | # else /* !HAVE_LRAND48 */ | |
3145 | # define RAND_BITS 15 | |
3146 | # if RAND_MAX == 32767 | |
3147 | # define random rand | |
3148 | # else /* RAND_MAX != 32767 */ | |
3149 | # if RAND_MAX == 2147483647 | |
3150 | # define random() (rand () >> 16) | |
3151 | # else /* RAND_MAX != 2147483647 */ | |
3152 | # ifdef USG | |
3153 | # define random rand | |
3154 | # else | |
3155 | # define random() (rand () >> 16) | |
2a633456 | 3156 | # endif /* !USG */ |
4bb8c8b7 KH |
3157 | # endif /* RAND_MAX != 2147483647 */ |
3158 | # endif /* RAND_MAX != 32767 */ | |
3159 | # endif /* !HAVE_LRAND48 */ | |
3160 | # endif /* !HAVE_RANDOM */ | |
3161 | #endif /* !RAND_BITS */ | |
2e46c7c6 | 3162 | |
4bb8c8b7 KH |
3163 | void |
3164 | seed_random (arg) | |
3165 | long arg; | |
86a5659e | 3166 | { |
4bb8c8b7 KH |
3167 | #ifdef HAVE_RANDOM |
3168 | srandom ((unsigned int)arg); | |
f8b53a82 | 3169 | #else |
4bb8c8b7 | 3170 | # ifdef HAVE_LRAND48 |
76425a49 | 3171 | srand48 (arg); |
4bb8c8b7 KH |
3172 | # else |
3173 | srand ((unsigned int)arg); | |
3174 | # endif | |
2e46c7c6 | 3175 | #endif |
86a5659e JB |
3176 | } |
3177 | ||
4bb8c8b7 KH |
3178 | /* |
3179 | * Build a full Emacs-sized word out of whatever we've got. | |
3180 | * This suffices even for a 64-bit architecture with a 15-bit rand. | |
3181 | */ | |
3182 | long | |
3183 | get_random () | |
3184 | { | |
3185 | long val = random (); | |
3186 | #if VALBITS > RAND_BITS | |
3187 | val = (val << RAND_BITS) ^ random (); | |
3188 | #if VALBITS > 2*RAND_BITS | |
3189 | val = (val << RAND_BITS) ^ random (); | |
3190 | #if VALBITS > 3*RAND_BITS | |
3191 | val = (val << RAND_BITS) ^ random (); | |
3192 | #if VALBITS > 4*RAND_BITS | |
3193 | val = (val << RAND_BITS) ^ random (); | |
3194 | #endif /* need at least 5 */ | |
3195 | #endif /* need at least 4 */ | |
3196 | #endif /* need at least 3 */ | |
3197 | #endif /* need at least 2 */ | |
3198 | return val & ((1L << VALBITS) - 1); | |
3199 | } | |
86a5659e | 3200 | \f |
86a5659e JB |
3201 | #ifdef VMS |
3202 | ||
3203 | #ifdef getenv | |
3204 | /* If any place else asks for the TERM variable, | |
3205 | allow it to be overridden with the EMACS_TERM variable | |
3206 | before attempting to translate the logical name TERM. As a last | |
3207 | resort, ask for VAX C's special idea of the TERM variable. */ | |
3208 | #undef getenv | |
3209 | char * | |
3210 | sys_getenv (name) | |
3211 | char *name; | |
3212 | { | |
3213 | register char *val; | |
3214 | static char buf[256]; | |
3215 | static struct dsc$descriptor_s equiv | |
3216 | = {sizeof (buf), DSC$K_DTYPE_T, DSC$K_CLASS_S, buf}; | |
3217 | static struct dsc$descriptor_s d_name | |
3218 | = {0, DSC$K_DTYPE_T, DSC$K_CLASS_S, 0}; | |
3219 | short eqlen; | |
3220 | ||
3221 | if (!strcmp (name, "TERM")) | |
3222 | { | |
3223 | val = (char *) getenv ("EMACS_TERM"); | |
3224 | if (val) | |
3225 | return val; | |
3226 | } | |
3227 | ||
3228 | d_name.dsc$w_length = strlen (name); | |
3229 | d_name.dsc$a_pointer = name; | |
986ffb24 | 3230 | if (LIB$SYS_TRNLOG (&d_name, &eqlen, &equiv) == 1) |
86a5659e JB |
3231 | { |
3232 | char *str = (char *) xmalloc (eqlen + 1); | |
3233 | bcopy (buf, str, eqlen); | |
3234 | str[eqlen] = '\0'; | |
3235 | /* This is a storage leak, but a pain to fix. With luck, | |
3236 | no one will ever notice. */ | |
3237 | return str; | |
3238 | } | |
3239 | return (char *) getenv (name); | |
3240 | } | |
3241 | #endif /* getenv */ | |
3242 | ||
3243 | #ifdef abort | |
3244 | /* Since VMS doesn't believe in core dumps, the only way to debug this beast is | |
3245 | to force a call on the debugger from within the image. */ | |
3246 | #undef abort | |
3247 | sys_abort () | |
3248 | { | |
0a125897 | 3249 | reset_all_sys_modes (); |
86a5659e JB |
3250 | LIB$SIGNAL (SS$_DEBUG); |
3251 | } | |
3252 | #endif /* abort */ | |
3253 | #endif /* VMS */ | |
3254 | \f | |
3255 | #ifdef VMS | |
3256 | #ifdef LINK_CRTL_SHARE | |
ea5a0917 | 3257 | #ifdef SHARABLE_LIB_BUG |
eb8c3be9 | 3258 | /* Variables declared noshare and initialized in sharable libraries |
86a5659e JB |
3259 | cannot be shared. The VMS linker incorrectly forces you to use a private |
3260 | version which is uninitialized... If not for this "feature", we | |
3261 | could use the C library definition of sys_nerr and sys_errlist. */ | |
3262 | int sys_nerr = 35; | |
3263 | char *sys_errlist[] = | |
3264 | { | |
3265 | "error 0", | |
3266 | "not owner", | |
3267 | "no such file or directory", | |
3268 | "no such process", | |
3269 | "interrupted system call", | |
3270 | "i/o error", | |
3271 | "no such device or address", | |
3272 | "argument list too long", | |
3273 | "exec format error", | |
3274 | "bad file number", | |
3275 | "no child process", | |
3276 | "no more processes", | |
3277 | "not enough memory", | |
3278 | "permission denied", | |
3279 | "bad address", | |
3280 | "block device required", | |
3281 | "mount devices busy", | |
3282 | "file exists", | |
3283 | "cross-device link", | |
3284 | "no such device", | |
3285 | "not a directory", | |
3286 | "is a directory", | |
3287 | "invalid argument", | |
3288 | "file table overflow", | |
3289 | "too many open files", | |
3290 | "not a typewriter", | |
3291 | "text file busy", | |
3292 | "file too big", | |
3293 | "no space left on device", | |
3294 | "illegal seek", | |
3295 | "read-only file system", | |
3296 | "too many links", | |
3297 | "broken pipe", | |
3298 | "math argument", | |
3299 | "result too large", | |
3300 | "I/O stream empty", | |
3301 | "vax/vms specific error code nontranslatable error" | |
3302 | }; | |
ea5a0917 | 3303 | #endif /* SHARABLE_LIB_BUG */ |
86a5659e JB |
3304 | #endif /* LINK_CRTL_SHARE */ |
3305 | #endif /* VMS */ | |
7088d1ca RM |
3306 | |
3307 | #ifndef HAVE_STRERROR | |
fe03522b | 3308 | #ifndef WINDOWSNT |
7088d1ca RM |
3309 | char * |
3310 | strerror (errnum) | |
3311 | int errnum; | |
3312 | { | |
3313 | extern char *sys_errlist[]; | |
3314 | extern int sys_nerr; | |
3315 | ||
3316 | if (errnum >= 0 && errnum < sys_nerr) | |
3317 | return sys_errlist[errnum]; | |
3318 | return (char *) "Unknown error"; | |
3319 | } | |
fe03522b | 3320 | #endif /* not WINDOWSNT */ |
7088d1ca | 3321 | #endif /* ! HAVE_STRERROR */ |
86a5659e | 3322 | \f |
86a5659e | 3323 | int |
68c45bf0 | 3324 | emacs_open (path, oflag, mode) |
8c2ba7de | 3325 | const char *path; |
86a5659e JB |
3326 | int oflag, mode; |
3327 | { | |
3328 | register int rtnval; | |
68c45bf0 PE |
3329 | |
3330 | #ifdef BSD4_1 | |
177c0ea7 | 3331 | if (oflag & O_CREAT) |
68c45bf0 PE |
3332 | return creat (path, mode); |
3333 | #endif | |
177c0ea7 | 3334 | |
86a5659e | 3335 | while ((rtnval = open (path, oflag, mode)) == -1 |
275464e7 SM |
3336 | && (errno == EINTR)) |
3337 | QUIT; | |
86a5659e JB |
3338 | return (rtnval); |
3339 | } | |
3340 | ||
dfcf069d | 3341 | int |
68c45bf0 | 3342 | emacs_close (fd) |
86a5659e JB |
3343 | int fd; |
3344 | { | |
fe111daf | 3345 | int did_retry = 0; |
86a5659e JB |
3346 | register int rtnval; |
3347 | ||
959116ef YM |
3348 | #if defined (MAC_OSX) && defined (HAVE_CARBON) |
3349 | { | |
3350 | extern int mac_try_close_socket P_ ((int)); | |
3351 | ||
3352 | if (mac_try_close_socket (fd)) | |
3353 | return 0; | |
3354 | } | |
3355 | #endif | |
3356 | ||
86a5659e | 3357 | while ((rtnval = close (fd)) == -1 |
fe111daf KH |
3358 | && (errno == EINTR)) |
3359 | did_retry = 1; | |
3360 | ||
3361 | /* If close is interrupted SunOS 4.1 may or may not have closed the | |
3362 | file descriptor. If it did the second close will fail with | |
3363 | errno = EBADF. That means we have succeeded. */ | |
3364 | if (rtnval == -1 && did_retry && errno == EBADF) | |
3365 | return 0; | |
3366 | ||
86a5659e JB |
3367 | return rtnval; |
3368 | } | |
3369 | ||
86a5659e | 3370 | int |
68c45bf0 | 3371 | emacs_read (fildes, buf, nbyte) |
86a5659e JB |
3372 | int fildes; |
3373 | char *buf; | |
3374 | unsigned int nbyte; | |
3375 | { | |
3376 | register int rtnval; | |
177c0ea7 | 3377 | |
86a5659e | 3378 | while ((rtnval = read (fildes, buf, nbyte)) == -1 |
275464e7 SM |
3379 | && (errno == EINTR)) |
3380 | QUIT; | |
86a5659e JB |
3381 | return (rtnval); |
3382 | } | |
3383 | ||
3384 | int | |
68c45bf0 | 3385 | emacs_write (fildes, buf, nbyte) |
86a5659e | 3386 | int fildes; |
7b1cc119 | 3387 | const char *buf; |
86a5659e JB |
3388 | unsigned int nbyte; |
3389 | { | |
b95520f5 | 3390 | register int rtnval, bytes_written; |
86a5659e | 3391 | |
b95520f5 BF |
3392 | bytes_written = 0; |
3393 | ||
3394 | while (nbyte > 0) | |
3395 | { | |
3396 | rtnval = write (fildes, buf, nbyte); | |
3397 | ||
3398 | if (rtnval == -1) | |
3399 | { | |
3400 | if (errno == EINTR) | |
77220eeb SM |
3401 | { |
3402 | #ifdef SYNC_INPUT | |
3403 | /* I originally used `QUIT' but that might causes files to | |
3404 | be truncated if you hit C-g in the middle of it. --Stef */ | |
3405 | if (interrupt_input_pending) | |
3406 | handle_async_input (); | |
cb5c5b3d JD |
3407 | if (pending_atimers) |
3408 | do_pending_atimers (); | |
77220eeb SM |
3409 | #endif |
3410 | continue; | |
3411 | } | |
b95520f5 | 3412 | else |
aa670904 | 3413 | return (bytes_written ? bytes_written : -1); |
b95520f5 BF |
3414 | } |
3415 | ||
3416 | buf += rtnval; | |
3417 | nbyte -= rtnval; | |
3418 | bytes_written += rtnval; | |
3419 | } | |
3420 | return (bytes_written); | |
86a5659e | 3421 | } |
86a5659e JB |
3422 | \f |
3423 | #ifdef USG | |
3424 | /* | |
3425 | * All of the following are for USG. | |
3426 | * | |
3427 | * On USG systems the system calls are INTERRUPTIBLE by signals | |
3428 | * that the user program has elected to catch. Thus the system call | |
3429 | * must be retried in these cases. To handle this without massive | |
3430 | * changes in the source code, we remap the standard system call names | |
3431 | * to names for our own functions in sysdep.c that do the system call | |
3432 | * with retries. Actually, for portability reasons, it is good | |
3433 | * programming practice, as this example shows, to limit all actual | |
eb8c3be9 | 3434 | * system calls to a single occurrence in the source. Sure, this |
86a5659e JB |
3435 | * adds an extra level of function call overhead but it is almost |
3436 | * always negligible. Fred Fish, Unisoft Systems Inc. | |
3437 | */ | |
3438 | ||
86a5659e JB |
3439 | /* |
3440 | * Warning, this function may not duplicate 4.2 action properly | |
3441 | * under error conditions. | |
3442 | */ | |
3443 | ||
3444 | #ifndef MAXPATHLEN | |
3445 | /* In 4.1, param.h fails to define this. */ | |
3446 | #define MAXPATHLEN 1024 | |
3447 | #endif | |
3448 | ||
3449 | #ifndef HAVE_GETWD | |
3450 | ||
3451 | char * | |
3452 | getwd (pathname) | |
3453 | char *pathname; | |
3454 | { | |
3455 | char *npath, *spath; | |
3456 | extern char *getcwd (); | |
3457 | ||
9ac0d9e0 | 3458 | BLOCK_INPUT; /* getcwd uses malloc */ |
86a5659e | 3459 | spath = npath = getcwd ((char *) 0, MAXPATHLEN); |
f4a7e5bd | 3460 | if (spath == 0) |
18b6bc73 GM |
3461 | { |
3462 | UNBLOCK_INPUT; | |
3463 | return spath; | |
3464 | } | |
86a5659e JB |
3465 | /* On Altos 3068, getcwd can return @hostname/dir, so discard |
3466 | up to first slash. Should be harmless on other systems. */ | |
3467 | while (*npath && *npath != '/') | |
3468 | npath++; | |
3469 | strcpy (pathname, npath); | |
3470 | free (spath); /* getcwd uses malloc */ | |
9ac0d9e0 | 3471 | UNBLOCK_INPUT; |
86a5659e JB |
3472 | return pathname; |
3473 | } | |
3474 | ||
3475 | #endif /* HAVE_GETWD */ | |
3476 | ||
3477 | /* | |
3478 | * Emulate rename using unlink/link. Note that this is | |
3479 | * only partially correct. Also, doesn't enforce restriction | |
3480 | * that files be of same type (regular->regular, dir->dir, etc). | |
3481 | */ | |
3482 | ||
4746118a JB |
3483 | #ifndef HAVE_RENAME |
3484 | ||
86a5659e | 3485 | rename (from, to) |
19c7afdf JB |
3486 | const char *from; |
3487 | const char *to; | |
86a5659e JB |
3488 | { |
3489 | if (access (from, 0) == 0) | |
3490 | { | |
3491 | unlink (to); | |
3492 | if (link (from, to) == 0) | |
3493 | if (unlink (from) == 0) | |
3494 | return (0); | |
3495 | } | |
3496 | return (-1); | |
3497 | } | |
3498 | ||
4746118a JB |
3499 | #endif |
3500 | ||
86a5659e JB |
3501 | |
3502 | #ifdef HPUX | |
3503 | #ifndef HAVE_PERROR | |
3504 | ||
3505 | /* HPUX curses library references perror, but as far as we know | |
3506 | it won't be called. Anyway this definition will do for now. */ | |
3507 | ||
3508 | perror () | |
3509 | { | |
3510 | } | |
3511 | ||
3512 | #endif /* not HAVE_PERROR */ | |
3513 | #endif /* HPUX */ | |
3514 | ||
3515 | #ifndef HAVE_DUP2 | |
3516 | ||
3517 | /* | |
3518 | * Emulate BSD dup2. First close newd if it already exists. | |
3519 | * Then, attempt to dup oldd. If not successful, call dup2 recursively | |
3520 | * until we are, then close the unsuccessful ones. | |
3521 | */ | |
3522 | ||
3523 | dup2 (oldd, newd) | |
3524 | int oldd; | |
3525 | int newd; | |
3526 | { | |
3527 | register int fd, ret; | |
177c0ea7 | 3528 | |
68c45bf0 | 3529 | emacs_close (newd); |
86a5659e JB |
3530 | |
3531 | #ifdef F_DUPFD | |
68c45bf0 | 3532 | return fcntl (oldd, F_DUPFD, newd); |
86a5659e JB |
3533 | #else |
3534 | fd = dup (old); | |
3535 | if (fd == -1) | |
3536 | return -1; | |
3537 | if (fd == new) | |
3538 | return new; | |
3539 | ret = dup2 (old,new); | |
68c45bf0 | 3540 | emacs_close (fd); |
86a5659e JB |
3541 | return ret; |
3542 | #endif | |
3543 | } | |
3544 | ||
3545 | #endif /* not HAVE_DUP2 */ | |
3546 | ||
3547 | /* | |
3548 | * Gettimeofday. Simulate as much as possible. Only accurate | |
3549 | * to nearest second. Emacs doesn't use tzp so ignore it for now. | |
3550 | * Only needed when subprocesses are defined. | |
3551 | */ | |
3552 | ||
3553 | #ifdef subprocesses | |
3554 | #ifndef VMS | |
3555 | #ifndef HAVE_GETTIMEOFDAY | |
3556 | #ifdef HAVE_TIMEVAL | |
177c0ea7 | 3557 | |
86a5659e | 3558 | /* ARGSUSED */ |
dfcf069d | 3559 | int |
86a5659e JB |
3560 | gettimeofday (tp, tzp) |
3561 | struct timeval *tp; | |
3562 | struct timezone *tzp; | |
3563 | { | |
3564 | extern long time (); | |
3565 | ||
177c0ea7 | 3566 | tp->tv_sec = time ((long *)0); |
86a5659e | 3567 | tp->tv_usec = 0; |
4ca7594f RS |
3568 | if (tzp != 0) |
3569 | tzp->tz_minuteswest = -1; | |
dfcf069d | 3570 | return 0; |
86a5659e | 3571 | } |
177c0ea7 | 3572 | |
86a5659e JB |
3573 | #endif |
3574 | #endif | |
3575 | #endif | |
3576 | #endif /* subprocess && !HAVE_GETTIMEOFDAY && HAVE_TIMEVAL && !VMS */ | |
177c0ea7 | 3577 | |
86a5659e JB |
3578 | /* |
3579 | * This function will go away as soon as all the stubs fixed. (fnf) | |
3580 | */ | |
3581 | ||
dfcf069d | 3582 | void |
86a5659e JB |
3583 | croak (badfunc) |
3584 | char *badfunc; | |
3585 | { | |
3586 | printf ("%s not yet implemented\r\n", badfunc); | |
28d440ab | 3587 | reset_all_sys_modes (); |
86a5659e JB |
3588 | exit (1); |
3589 | } | |
3590 | ||
3591 | #endif /* USG */ | |
3592 | \f | |
86a5659e JB |
3593 | /* Directory routines for systems that don't have them. */ |
3594 | ||
3595 | #ifdef SYSV_SYSTEM_DIR | |
3596 | ||
3597 | #include <dirent.h> | |
3598 | ||
c4ea52a6 | 3599 | #if defined (BROKEN_CLOSEDIR) || !defined (HAVE_CLOSEDIR) |
cfdc57af | 3600 | |
86a5659e JB |
3601 | int |
3602 | closedir (dirp) | |
3603 | register DIR *dirp; /* stream from opendir */ | |
3604 | { | |
cfdc57af RS |
3605 | int rtnval; |
3606 | ||
68c45bf0 | 3607 | rtnval = emacs_close (dirp->dd_fd); |
1b929d25 | 3608 | |
65aa44ac JB |
3609 | /* Some systems (like Solaris) allocate the buffer and the DIR all |
3610 | in one block. Why in the world are we freeing this ourselves | |
3611 | anyway? */ | |
3612 | #if ! (defined (sun) && defined (USG5_4)) | |
3613 | xfree ((char *) dirp->dd_buf); /* directory block defined in <dirent.h> */ | |
3614 | #endif | |
9ac0d9e0 | 3615 | xfree ((char *) dirp); |
cfdc57af RS |
3616 | |
3617 | return rtnval; | |
86a5659e | 3618 | } |
1db6401c | 3619 | #endif /* BROKEN_CLOSEDIR or not HAVE_CLOSEDIR */ |
86a5659e JB |
3620 | #endif /* SYSV_SYSTEM_DIR */ |
3621 | ||
3622 | #ifdef NONSYSTEM_DIR_LIBRARY | |
3623 | ||
3624 | DIR * | |
3625 | opendir (filename) | |
3626 | char *filename; /* name of directory */ | |
3627 | { | |
3628 | register DIR *dirp; /* -> malloc'ed storage */ | |
3629 | register int fd; /* file descriptor for read */ | |
3630 | struct stat sbuf; /* result of fstat */ | |
3631 | ||
68c45bf0 | 3632 | fd = emacs_open (filename, O_RDONLY, 0); |
86a5659e JB |
3633 | if (fd < 0) |
3634 | return 0; | |
3635 | ||
9ac0d9e0 | 3636 | BLOCK_INPUT; |
86a5659e JB |
3637 | if (fstat (fd, &sbuf) < 0 |
3638 | || (sbuf.st_mode & S_IFMT) != S_IFDIR | |
7f77dbe3 | 3639 | || (dirp = (DIR *) xmalloc (sizeof (DIR))) == 0) |
86a5659e | 3640 | { |
68c45bf0 | 3641 | emacs_close (fd); |
9ac0d9e0 | 3642 | UNBLOCK_INPUT; |
86a5659e JB |
3643 | return 0; /* bad luck today */ |
3644 | } | |
9ac0d9e0 | 3645 | UNBLOCK_INPUT; |
86a5659e JB |
3646 | |
3647 | dirp->dd_fd = fd; | |
3648 | dirp->dd_loc = dirp->dd_size = 0; /* refill needed */ | |
3649 | ||
3650 | return dirp; | |
3651 | } | |
3652 | ||
3653 | void | |
3654 | closedir (dirp) | |
3655 | register DIR *dirp; /* stream from opendir */ | |
3656 | { | |
68c45bf0 | 3657 | emacs_close (dirp->dd_fd); |
9ac0d9e0 | 3658 | xfree ((char *) dirp); |
86a5659e JB |
3659 | } |
3660 | ||
3661 | ||
3662 | #ifndef VMS | |
3663 | #define DIRSIZ 14 | |
3664 | struct olddir | |
3665 | { | |
3666 | ino_t od_ino; /* inode */ | |
3667 | char od_name[DIRSIZ]; /* filename */ | |
3668 | }; | |
3669 | #endif /* not VMS */ | |
3670 | ||
3671 | struct direct dir_static; /* simulated directory contents */ | |
3672 | ||
3673 | /* ARGUSED */ | |
3674 | struct direct * | |
3675 | readdir (dirp) | |
3676 | register DIR *dirp; /* stream from opendir */ | |
3677 | { | |
3678 | #ifndef VMS | |
3679 | register struct olddir *dp; /* -> directory data */ | |
3680 | #else /* VMS */ | |
3681 | register struct dir$_name *dp; /* -> directory data */ | |
3682 | register struct dir$_version *dv; /* -> version data */ | |
3683 | #endif /* VMS */ | |
3684 | ||
3685 | for (; ;) | |
3686 | { | |
3687 | if (dirp->dd_loc >= dirp->dd_size) | |
3688 | dirp->dd_loc = dirp->dd_size = 0; | |
3689 | ||
3690 | if (dirp->dd_size == 0 /* refill buffer */ | |
68c45bf0 | 3691 | && (dirp->dd_size = emacs_read (dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ)) <= 0) |
86a5659e JB |
3692 | return 0; |
3693 | ||
3694 | #ifndef VMS | |
3695 | dp = (struct olddir *) &dirp->dd_buf[dirp->dd_loc]; | |
3696 | dirp->dd_loc += sizeof (struct olddir); | |
3697 | ||
3698 | if (dp->od_ino != 0) /* not deleted entry */ | |
3699 | { | |
3700 | dir_static.d_ino = dp->od_ino; | |
3701 | strncpy (dir_static.d_name, dp->od_name, DIRSIZ); | |
3702 | dir_static.d_name[DIRSIZ] = '\0'; | |
3703 | dir_static.d_namlen = strlen (dir_static.d_name); | |
3704 | dir_static.d_reclen = sizeof (struct direct) | |
3705 | - MAXNAMLEN + 3 | |
3706 | + dir_static.d_namlen - dir_static.d_namlen % 4; | |
3707 | return &dir_static; /* -> simulated structure */ | |
3708 | } | |
3709 | #else /* VMS */ | |
3710 | dp = (struct dir$_name *) dirp->dd_buf; | |
3711 | if (dirp->dd_loc == 0) | |
3712 | dirp->dd_loc = (dp->dir$b_namecount&1) ? dp->dir$b_namecount + 1 | |
3713 | : dp->dir$b_namecount; | |
3714 | dv = (struct dir$_version *)&dp->dir$t_name[dirp->dd_loc]; | |
3715 | dir_static.d_ino = dv->dir$w_fid_num; | |
3716 | dir_static.d_namlen = dp->dir$b_namecount; | |
3717 | dir_static.d_reclen = sizeof (struct direct) | |
3718 | - MAXNAMLEN + 3 | |
3719 | + dir_static.d_namlen - dir_static.d_namlen % 4; | |
3720 | strncpy (dir_static.d_name, dp->dir$t_name, dp->dir$b_namecount); | |
3721 | dir_static.d_name[dir_static.d_namlen] = '\0'; | |
3722 | dirp->dd_loc = dirp->dd_size; /* only one record at a time */ | |
3723 | return &dir_static; | |
3724 | #endif /* VMS */ | |
3725 | } | |
3726 | } | |
3727 | ||
3728 | #ifdef VMS | |
3729 | /* readdirver is just like readdir except it returns all versions of a file | |
3730 | as separate entries. */ | |
3731 | ||
3732 | /* ARGUSED */ | |
3733 | struct direct * | |
3734 | readdirver (dirp) | |
3735 | register DIR *dirp; /* stream from opendir */ | |
3736 | { | |
3737 | register struct dir$_name *dp; /* -> directory data */ | |
3738 | register struct dir$_version *dv; /* -> version data */ | |
3739 | ||
3740 | if (dirp->dd_loc >= dirp->dd_size - sizeof (struct dir$_name)) | |
3741 | dirp->dd_loc = dirp->dd_size = 0; | |
3742 | ||
3743 | if (dirp->dd_size == 0 /* refill buffer */ | |
3744 | && (dirp->dd_size = sys_read (dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ)) <= 0) | |
3745 | return 0; | |
3746 | ||
3747 | dp = (struct dir$_name *) dirp->dd_buf; | |
3748 | if (dirp->dd_loc == 0) | |
3749 | dirp->dd_loc = (dp->dir$b_namecount & 1) ? dp->dir$b_namecount + 1 | |
3750 | : dp->dir$b_namecount; | |
3751 | dv = (struct dir$_version *) &dp->dir$t_name[dirp->dd_loc]; | |
3752 | strncpy (dir_static.d_name, dp->dir$t_name, dp->dir$b_namecount); | |
3753 | sprintf (&dir_static.d_name[dp->dir$b_namecount], ";%d", dv->dir$w_version); | |
3754 | dir_static.d_namlen = strlen (dir_static.d_name); | |
3755 | dir_static.d_ino = dv->dir$w_fid_num; | |
3756 | dir_static.d_reclen = sizeof (struct direct) - MAXNAMLEN + 3 | |
3757 | + dir_static.d_namlen - dir_static.d_namlen % 4; | |
3758 | dirp->dd_loc = ((char *) (++dv) - dp->dir$t_name); | |
3759 | return &dir_static; | |
3760 | } | |
3761 | ||
3762 | #endif /* VMS */ | |
3763 | ||
3764 | #endif /* NONSYSTEM_DIR_LIBRARY */ | |
23524fb9 JB |
3765 | |
3766 | \f | |
53ea491a | 3767 | int |
061ea326 | 3768 | set_file_times (filename, atime, mtime) |
8c2ba7de | 3769 | const char *filename; |
53ea491a KH |
3770 | EMACS_TIME atime, mtime; |
3771 | { | |
3772 | #ifdef HAVE_UTIMES | |
3773 | struct timeval tv[2]; | |
3774 | tv[0] = atime; | |
3775 | tv[1] = mtime; | |
8334eb21 RS |
3776 | return utimes (filename, tv); |
3777 | #else /* not HAVE_UTIMES */ | |
53ea491a KH |
3778 | struct utimbuf utb; |
3779 | utb.actime = EMACS_SECS (atime); | |
3780 | utb.modtime = EMACS_SECS (mtime); | |
8334eb21 RS |
3781 | return utime (filename, &utb); |
3782 | #endif /* not HAVE_UTIMES */ | |
53ea491a KH |
3783 | } |
3784 | \f | |
23524fb9 JB |
3785 | /* mkdir and rmdir functions, for systems which don't have them. */ |
3786 | ||
3787 | #ifndef HAVE_MKDIR | |
3788 | /* | |
3789 | * Written by Robert Rother, Mariah Corporation, August 1985. | |
3790 | * | |
3791 | * If you want it, it's yours. All I ask in return is that if you | |
3792 | * figure out how to do this in a Bourne Shell script you send me | |
3793 | * a copy. | |
3794 | * sdcsvax!rmr or rmr@uscd | |
3795 | * | |
3796 | * Severely hacked over by John Gilmore to make a 4.2BSD compatible | |
db9cd97a | 3797 | * subroutine. 11Mar86; hoptoad!gnu |
23524fb9 JB |
3798 | * |
3799 | * Modified by rmtodd@uokmax 6-28-87 -- when making an already existing dir, | |
3800 | * subroutine didn't return EEXIST. It does now. | |
3801 | */ | |
3802 | ||
3803 | /* | |
3804 | * Make a directory. | |
3805 | */ | |
f3892946 RS |
3806 | #ifdef MKDIR_PROTOTYPE |
3807 | MKDIR_PROTOTYPE | |
3808 | #else | |
23524fb9 JB |
3809 | int |
3810 | mkdir (dpath, dmode) | |
3811 | char *dpath; | |
3812 | int dmode; | |
f3892946 | 3813 | #endif |
23524fb9 | 3814 | { |
039f26a4 | 3815 | int cpid, status, fd; |
23524fb9 JB |
3816 | struct stat statbuf; |
3817 | ||
3818 | if (stat (dpath, &statbuf) == 0) | |
3819 | { | |
3820 | errno = EEXIST; /* Stat worked, so it already exists */ | |
3821 | return -1; | |
3822 | } | |
3823 | ||
3824 | /* If stat fails for a reason other than non-existence, return error */ | |
3825 | if (errno != ENOENT) | |
3826 | return -1; | |
3827 | ||
039f26a4 | 3828 | synch_process_alive = 1; |
23524fb9 JB |
3829 | switch (cpid = fork ()) |
3830 | { | |
3831 | ||
039f26a4 | 3832 | case -1: /* Error in fork */ |
23524fb9 JB |
3833 | return (-1); /* Errno is set already */ |
3834 | ||
3835 | case 0: /* Child process */ | |
3836 | /* | |
3837 | * Cheap hack to set mode of new directory. Since this | |
3838 | * child process is going away anyway, we zap its umask. | |
3839 | * FIXME, this won't suffice to set SUID, SGID, etc. on this | |
3840 | * directory. Does anybody care? | |
3841 | */ | |
3842 | status = umask (0); /* Get current umask */ | |
3843 | status = umask (status | (0777 & ~dmode)); /* Set for mkdir */ | |
68c45bf0 | 3844 | fd = emacs_open ("/dev/null", O_RDWR, 0); |
039f26a4 RS |
3845 | if (fd >= 0) |
3846 | { | |
3847 | dup2 (fd, 0); | |
3848 | dup2 (fd, 1); | |
3849 | dup2 (fd, 2); | |
3850 | } | |
23524fb9 JB |
3851 | execl ("/bin/mkdir", "mkdir", dpath, (char *) 0); |
3852 | _exit (-1); /* Can't exec /bin/mkdir */ | |
3853 | ||
3854 | default: /* Parent process */ | |
039f26a4 | 3855 | wait_for_termination (cpid); |
23524fb9 JB |
3856 | } |
3857 | ||
6b0824c9 JD |
3858 | if (synch_process_death != 0 || synch_process_retcode != 0 |
3859 | || synch_process_termsig != 0) | |
23524fb9 JB |
3860 | { |
3861 | errno = EIO; /* We don't know why, but */ | |
3862 | return -1; /* /bin/mkdir failed */ | |
3863 | } | |
3864 | ||
3865 | return 0; | |
3866 | } | |
3867 | #endif /* not HAVE_MKDIR */ | |
3868 | ||
3869 | #ifndef HAVE_RMDIR | |
3870 | int | |
3871 | rmdir (dpath) | |
3872 | char *dpath; | |
3873 | { | |
039f26a4 | 3874 | int cpid, status, fd; |
23524fb9 JB |
3875 | struct stat statbuf; |
3876 | ||
3877 | if (stat (dpath, &statbuf) != 0) | |
3878 | { | |
3879 | /* Stat just set errno. We don't have to */ | |
3880 | return -1; | |
3881 | } | |
3882 | ||
039f26a4 | 3883 | synch_process_alive = 1; |
23524fb9 JB |
3884 | switch (cpid = fork ()) |
3885 | { | |
3886 | ||
039f26a4 | 3887 | case -1: /* Error in fork */ |
23524fb9 JB |
3888 | return (-1); /* Errno is set already */ |
3889 | ||
3890 | case 0: /* Child process */ | |
68c45bf0 | 3891 | fd = emacs_open ("/dev/null", O_RDWR, 0); |
039f26a4 RS |
3892 | if (fd >= 0) |
3893 | { | |
3894 | dup2 (fd, 0); | |
3895 | dup2 (fd, 1); | |
3896 | dup2 (fd, 2); | |
3897 | } | |
f560db78 RS |
3898 | execl ("/bin/rmdir", "rmdir", dpath, (char *) 0); |
3899 | _exit (-1); /* Can't exec /bin/rmdir */ | |
3900 | ||
207bdbdb | 3901 | default: /* Parent process */ |
f560db78 | 3902 | wait_for_termination (cpid); |
23524fb9 JB |
3903 | } |
3904 | ||
6b0824c9 JD |
3905 | if (synch_process_death != 0 || synch_process_retcode != 0 |
3906 | || synch_process_termsig != 0) | |
23524fb9 JB |
3907 | { |
3908 | errno = EIO; /* We don't know why, but */ | |
f560db78 | 3909 | return -1; /* /bin/rmdir failed */ |
23524fb9 JB |
3910 | } |
3911 | ||
3912 | return 0; | |
3913 | } | |
3914 | #endif /* !HAVE_RMDIR */ | |
3915 | ||
3916 | ||
86a5659e JB |
3917 | \f |
3918 | /* Functions for VMS */ | |
3919 | #ifdef VMS | |
86a5659e JB |
3920 | #include <acldef.h> |
3921 | #include <chpdef.h> | |
3922 | #include <jpidef.h> | |
3923 | ||
3924 | /* Return as a string the VMS error string pertaining to STATUS. | |
3925 | Reuses the same static buffer each time it is called. */ | |
3926 | ||
3927 | char * | |
3928 | vmserrstr (status) | |
3929 | int status; /* VMS status code */ | |
3930 | { | |
3931 | int bufadr[2]; | |
3932 | short len; | |
3933 | static char buf[257]; | |
3934 | ||
3935 | bufadr[0] = sizeof buf - 1; | |
3936 | bufadr[1] = (int) buf; | |
3937 | if (! (SYS$GETMSG (status, &len, bufadr, 0x1, 0) & 1)) | |
3938 | return "untranslatable VMS error status"; | |
3939 | buf[len] = '\0'; | |
3940 | return buf; | |
3941 | } | |
3942 | ||
3943 | #ifdef access | |
3944 | #undef access | |
177c0ea7 | 3945 | |
86a5659e JB |
3946 | /* The following is necessary because 'access' emulation by VMS C (2.0) does |
3947 | * not work correctly. (It also doesn't work well in version 2.3.) | |
3948 | */ | |
3949 | ||
3950 | #ifdef VMS4_4 | |
3951 | ||
3952 | #define DESCRIPTOR(name,string) struct dsc$descriptor_s name = \ | |
3953 | { strlen (string), DSC$K_DTYPE_T, DSC$K_CLASS_S, string } | |
3954 | ||
3955 | typedef union { | |
3956 | struct { | |
3957 | unsigned short s_buflen; | |
3958 | unsigned short s_code; | |
3959 | char *s_bufadr; | |
3960 | unsigned short *s_retlenadr; | |
3961 | } s; | |
3962 | int end; | |
3963 | } item; | |
3964 | #define buflen s.s_buflen | |
3965 | #define code s.s_code | |
3966 | #define bufadr s.s_bufadr | |
3967 | #define retlenadr s.s_retlenadr | |
3968 | ||
3969 | #define R_OK 4 /* test for read permission */ | |
3970 | #define W_OK 2 /* test for write permission */ | |
3971 | #define X_OK 1 /* test for execute (search) permission */ | |
3972 | #define F_OK 0 /* test for presence of file */ | |
3973 | ||
3974 | int | |
3975 | sys_access (path, mode) | |
3976 | char *path; | |
3977 | int mode; | |
3978 | { | |
3979 | static char *user = NULL; | |
3980 | char dir_fn[512]; | |
3981 | ||
3982 | /* translate possible directory spec into .DIR file name, so brain-dead | |
3983 | * access can treat the directory like a file. */ | |
3984 | if (directory_file_name (path, dir_fn)) | |
3985 | path = dir_fn; | |
177c0ea7 | 3986 | |
86a5659e JB |
3987 | if (mode == F_OK) |
3988 | return access (path, mode); | |
3989 | if (user == NULL && (user = (char *) getenv ("USER")) == NULL) | |
3990 | return -1; | |
3991 | { | |
3992 | int stat; | |
3993 | int flags; | |
3994 | int acces; | |
3995 | unsigned short int dummy; | |
3996 | item itemlst[3]; | |
3997 | static int constant = ACL$C_FILE; | |
3998 | DESCRIPTOR (path_desc, path); | |
3999 | DESCRIPTOR (user_desc, user); | |
177c0ea7 | 4000 | |
86a5659e JB |
4001 | flags = 0; |
4002 | acces = 0; | |
4003 | if ((mode & X_OK) && ((stat = access (path, mode)) < 0 || mode == X_OK)) | |
4004 | return stat; | |
4005 | if (mode & R_OK) | |
4006 | acces |= CHP$M_READ; | |
4007 | if (mode & W_OK) | |
4008 | acces |= CHP$M_WRITE; | |
4009 | itemlst[0].buflen = sizeof (int); | |
4010 | itemlst[0].code = CHP$_FLAGS; | |
4011 | itemlst[0].bufadr = (char *) &flags; | |
4012 | itemlst[0].retlenadr = &dummy; | |
4013 | itemlst[1].buflen = sizeof (int); | |
4014 | itemlst[1].code = CHP$_ACCESS; | |
4015 | itemlst[1].bufadr = (char *) &acces; | |
4016 | itemlst[1].retlenadr = &dummy; | |
4017 | itemlst[2].end = CHP$_END; | |
4018 | stat = SYS$CHECK_ACCESS (&constant, &path_desc, &user_desc, itemlst); | |
4019 | return stat == SS$_NORMAL ? 0 : -1; | |
4020 | } | |
4021 | } | |
4022 | ||
4023 | #else /* not VMS4_4 */ | |
4024 | ||
4025 | #include <prvdef.h> | |
fe03522b RS |
4026 | #define ACE$M_WRITE 2 |
4027 | #define ACE$C_KEYID 1 | |
86a5659e JB |
4028 | |
4029 | static unsigned short memid, grpid; | |
4030 | static unsigned int uic; | |
4031 | ||
4032 | /* Called from init_sys_modes, so it happens not very often | |
4033 | but at least each time Emacs is loaded. */ | |
dfcf069d | 4034 | void |
86a5659e JB |
4035 | sys_access_reinit () |
4036 | { | |
4037 | uic = 0; | |
4038 | } | |
4039 | ||
4040 | int | |
4041 | sys_access (filename, type) | |
4042 | char * filename; | |
4043 | int type; | |
4044 | { | |
4045 | struct FAB fab; | |
4046 | struct XABPRO xab; | |
4047 | int status, size, i, typecode, acl_controlled; | |
4048 | unsigned int *aclptr, *aclend, aclbuf[60]; | |
4049 | union prvdef prvmask; | |
4050 | ||
4051 | /* Get UIC and GRP values for protection checking. */ | |
4052 | if (uic == 0) | |
4053 | { | |
4054 | status = LIB$GETJPI (&JPI$_UIC, 0, 0, &uic, 0, 0); | |
4055 | if (! (status & 1)) | |
4056 | return -1; | |
4057 | memid = uic & 0xFFFF; | |
4058 | grpid = uic >> 16; | |
4059 | } | |
4060 | ||
fe03522b | 4061 | if (type != 2) /* not checking write access */ |
86a5659e JB |
4062 | return access (filename, type); |
4063 | ||
4064 | /* Check write protection. */ | |
177c0ea7 | 4065 | |
fe03522b | 4066 | #define CHECKPRIV(bit) (prvmask.bit) |
ea5a0917 | 4067 | #define WRITABLE(field) (! ((xab.xab$w_pro >> field) & XAB$M_NOWRITE)) |
86a5659e JB |
4068 | |
4069 | /* Find privilege bits */ | |
986ffb24 | 4070 | status = SYS$SETPRV (0, 0, 0, prvmask); |
86a5659e JB |
4071 | if (! (status & 1)) |
4072 | error ("Unable to find privileges: %s", vmserrstr (status)); | |
4073 | if (CHECKPRIV (PRV$V_BYPASS)) | |
4074 | return 0; /* BYPASS enabled */ | |
4075 | fab = cc$rms_fab; | |
4076 | fab.fab$b_fac = FAB$M_GET; | |
4077 | fab.fab$l_fna = filename; | |
4078 | fab.fab$b_fns = strlen (filename); | |
4079 | fab.fab$l_xab = &xab; | |
4080 | xab = cc$rms_xabpro; | |
4081 | xab.xab$l_aclbuf = aclbuf; | |
4082 | xab.xab$w_aclsiz = sizeof (aclbuf); | |
986ffb24 | 4083 | status = SYS$OPEN (&fab, 0, 0); |
86a5659e JB |
4084 | if (! (status & 1)) |
4085 | return -1; | |
986ffb24 | 4086 | SYS$CLOSE (&fab, 0, 0); |
86a5659e | 4087 | /* Check system access */ |
ea5a0917 | 4088 | if (CHECKPRIV (PRV$V_SYSPRV) && WRITABLE (XAB$V_SYS)) |
86a5659e JB |
4089 | return 0; |
4090 | /* Check ACL entries, if any */ | |
4091 | acl_controlled = 0; | |
4092 | if (xab.xab$w_acllen > 0) | |
4093 | { | |
4094 | aclptr = aclbuf; | |
4095 | aclend = &aclbuf[xab.xab$w_acllen / 4]; | |
4096 | while (*aclptr && aclptr < aclend) | |
4097 | { | |
4098 | size = (*aclptr & 0xff) / 4; | |
4099 | typecode = (*aclptr >> 8) & 0xff; | |
4100 | if (typecode == ACE$C_KEYID) | |
4101 | for (i = size - 1; i > 1; i--) | |
4102 | if (aclptr[i] == uic) | |
4103 | { | |
4104 | acl_controlled = 1; | |
4105 | if (aclptr[1] & ACE$M_WRITE) | |
4106 | return 0; /* Write access through ACL */ | |
4107 | } | |
4108 | aclptr = &aclptr[size]; | |
4109 | } | |
4110 | if (acl_controlled) /* ACL specified, prohibits write access */ | |
4111 | return -1; | |
4112 | } | |
4113 | /* No ACL entries specified, check normal protection */ | |
ea5a0917 | 4114 | if (WRITABLE (XAB$V_WLD)) /* World writable */ |
86a5659e | 4115 | return 0; |
ea5a0917 | 4116 | if (WRITABLE (XAB$V_GRP) && |
86a5659e | 4117 | (unsigned short) (xab.xab$l_uic >> 16) == grpid) |
ea5a0917 KH |
4118 | return 0; /* Group writable */ |
4119 | if (WRITABLE (XAB$V_OWN) && | |
86a5659e | 4120 | (xab.xab$l_uic & 0xFFFF) == memid) |
ea5a0917 | 4121 | return 0; /* Owner writable */ |
86a5659e | 4122 | |
ea5a0917 | 4123 | return -1; /* Not writable */ |
86a5659e JB |
4124 | } |
4125 | #endif /* not VMS4_4 */ | |
4126 | #endif /* access */ | |
177c0ea7 | 4127 | |
86a5659e JB |
4128 | static char vtbuf[NAM$C_MAXRSS+1]; |
4129 | ||
4130 | /* translate a vms file spec to a unix path */ | |
4131 | char * | |
4132 | sys_translate_vms (vfile) | |
4133 | char * vfile; | |
4134 | { | |
4135 | char * p; | |
4136 | char * targ; | |
4137 | ||
4138 | if (!vfile) | |
4139 | return 0; | |
4140 | ||
4141 | targ = vtbuf; | |
4142 | ||
4143 | /* leading device or logical name is a root directory */ | |
4144 | if (p = strchr (vfile, ':')) | |
4145 | { | |
4146 | *targ++ = '/'; | |
4147 | while (vfile < p) | |
4148 | *targ++ = *vfile++; | |
4149 | vfile++; | |
4150 | *targ++ = '/'; | |
4151 | } | |
4152 | p = vfile; | |
4153 | if (*p == '[' || *p == '<') | |
4154 | { | |
4155 | while (*++vfile != *p + 2) | |
4156 | switch (*vfile) | |
4157 | { | |
4158 | case '.': | |
4159 | if (vfile[-1] == *p) | |
4160 | *targ++ = '.'; | |
4161 | *targ++ = '/'; | |
4162 | break; | |
4163 | ||
4164 | case '-': | |
4165 | *targ++ = '.'; | |
4166 | *targ++ = '.'; | |
4167 | break; | |
177c0ea7 | 4168 | |
86a5659e JB |
4169 | default: |
4170 | *targ++ = *vfile; | |
4171 | break; | |
4172 | } | |
4173 | vfile++; | |
4174 | *targ++ = '/'; | |
4175 | } | |
4176 | while (*vfile) | |
4177 | *targ++ = *vfile++; | |
4178 | ||
4179 | return vtbuf; | |
4180 | } | |
4181 | ||
4182 | static char utbuf[NAM$C_MAXRSS+1]; | |
4183 | ||
4184 | /* translate a unix path to a VMS file spec */ | |
4185 | char * | |
4186 | sys_translate_unix (ufile) | |
4187 | char * ufile; | |
4188 | { | |
4189 | int slash_seen = 0; | |
4190 | char *p; | |
4191 | char * targ; | |
4192 | ||
4193 | if (!ufile) | |
4194 | return 0; | |
4195 | ||
4196 | targ = utbuf; | |
4197 | ||
4198 | if (*ufile == '/') | |
4199 | { | |
4200 | ufile++; | |
4201 | } | |
4202 | ||
4203 | while (*ufile) | |
4204 | { | |
4205 | switch (*ufile) | |
4206 | { | |
4207 | case '/': | |
4208 | if (slash_seen) | |
4209 | if (index (&ufile[1], '/')) | |
4210 | *targ++ = '.'; | |
4211 | else | |
4212 | *targ++ = ']'; | |
4213 | else | |
4214 | { | |
4215 | *targ++ = ':'; | |
4216 | if (index (&ufile[1], '/')) | |
4217 | *targ++ = '['; | |
4218 | slash_seen = 1; | |
4219 | } | |
4220 | break; | |
4221 | ||
4222 | case '.': | |
4223 | if (strncmp (ufile, "./", 2) == 0) | |
4224 | { | |
4225 | if (!slash_seen) | |
4226 | { | |
4227 | *targ++ = '['; | |
4228 | slash_seen = 1; | |
4229 | } | |
4230 | ufile++; /* skip the dot */ | |
4231 | if (index (&ufile[1], '/')) | |
4232 | *targ++ = '.'; | |
4233 | else | |
4234 | *targ++ = ']'; | |
4235 | } | |
4236 | else if (strncmp (ufile, "../", 3) == 0) | |
4237 | { | |
4238 | if (!slash_seen) | |
4239 | { | |
4240 | *targ++ = '['; | |
4241 | slash_seen = 1; | |
4242 | } | |
4243 | *targ++ = '-'; | |
4244 | ufile += 2; /* skip the dots */ | |
4245 | if (index (&ufile[1], '/')) | |
4246 | *targ++ = '.'; | |
4247 | else | |
4248 | *targ++ = ']'; | |
4249 | } | |
4250 | else | |
4251 | *targ++ = *ufile; | |
4252 | break; | |
4253 | ||
4254 | default: | |
4255 | *targ++ = *ufile; | |
4256 | break; | |
4257 | } | |
4258 | ufile++; | |
4259 | } | |
4260 | *targ = '\0'; | |
177c0ea7 | 4261 | |
86a5659e JB |
4262 | return utbuf; |
4263 | } | |
4264 | ||
4265 | char * | |
4266 | getwd (pathname) | |
4267 | char *pathname; | |
4268 | { | |
f4a7e5bd | 4269 | char *ptr, *val; |
210b2b4f | 4270 | extern char *getcwd (); |
86a5659e | 4271 | |
210b2b4f JB |
4272 | #define MAXPATHLEN 1024 |
4273 | ||
9ac0d9e0 | 4274 | ptr = xmalloc (MAXPATHLEN); |
f4a7e5bd RS |
4275 | val = getcwd (ptr, MAXPATHLEN); |
4276 | if (val == 0) | |
4277 | { | |
4278 | xfree (ptr); | |
4279 | return val; | |
4280 | } | |
210b2b4f | 4281 | strcpy (pathname, ptr); |
9ac0d9e0 | 4282 | xfree (ptr); |
177c0ea7 | 4283 | |
210b2b4f | 4284 | return pathname; |
86a5659e JB |
4285 | } |
4286 | ||
dfcf069d | 4287 | int |
86a5659e JB |
4288 | getppid () |
4289 | { | |
4290 | long item_code = JPI$_OWNER; | |
4291 | unsigned long parent_id; | |
4292 | int status; | |
4293 | ||
4294 | if (((status = LIB$GETJPI (&item_code, 0, 0, &parent_id)) & 1) == 0) | |
4295 | { | |
4296 | errno = EVMSERR; | |
4297 | vaxc$errno = status; | |
4298 | return -1; | |
4299 | } | |
4300 | return parent_id; | |
4301 | } | |
4302 | ||
4303 | #undef getuid | |
4304 | unsigned | |
4305 | sys_getuid () | |
4306 | { | |
4307 | return (getgid () << 16) | getuid (); | |
4308 | } | |
4309 | ||
68c45bf0 | 4310 | #undef read |
86a5659e JB |
4311 | int |
4312 | sys_read (fildes, buf, nbyte) | |
4313 | int fildes; | |
4314 | char *buf; | |
4315 | unsigned int nbyte; | |
4316 | { | |
4317 | return read (fildes, buf, (nbyte < MAXIOSIZE ? nbyte : MAXIOSIZE)); | |
4318 | } | |
4319 | ||
4320 | #if 0 | |
4321 | int | |
4322 | sys_write (fildes, buf, nbyte) | |
4323 | int fildes; | |
4324 | char *buf; | |
4325 | unsigned int nbyte; | |
4326 | { | |
4327 | register int nwrote, rtnval = 0; | |
4328 | ||
4329 | while (nbyte > MAXIOSIZE && (nwrote = write (fildes, buf, MAXIOSIZE)) > 0) { | |
4330 | nbyte -= nwrote; | |
4331 | buf += nwrote; | |
4332 | rtnval += nwrote; | |
4333 | } | |
4334 | if (nwrote < 0) | |
4335 | return rtnval ? rtnval : -1; | |
4336 | if ((nwrote = write (fildes, buf, nbyte)) < 0) | |
4337 | return rtnval ? rtnval : -1; | |
4338 | return (rtnval + nwrote); | |
4339 | } | |
4340 | #endif /* 0 */ | |
4341 | ||
4342 | /* | |
4343 | * VAX/VMS VAX C RTL really loses. It insists that records | |
4344 | * end with a newline (carriage return) character, and if they | |
4345 | * don't it adds one (nice of it isn't it!) | |
4346 | * | |
4347 | * Thus we do this stupidity below. | |
4348 | */ | |
4349 | ||
68c45bf0 | 4350 | #undef write |
86a5659e JB |
4351 | int |
4352 | sys_write (fildes, buf, nbytes) | |
4353 | int fildes; | |
4354 | char *buf; | |
4355 | unsigned int nbytes; | |
4356 | { | |
4357 | register char *p; | |
4358 | register char *e; | |
23b0668c JB |
4359 | int sum = 0; |
4360 | struct stat st; | |
4361 | ||
4362 | fstat (fildes, &st); | |
86a5659e | 4363 | p = buf; |
86a5659e JB |
4364 | while (nbytes > 0) |
4365 | { | |
23b0668c JB |
4366 | int len, retval; |
4367 | ||
4368 | /* Handle fixed-length files with carriage control. */ | |
4369 | if (st.st_fab_rfm == FAB$C_FIX | |
4370 | && ((st.st_fab_rat & (FAB$M_FTN | FAB$M_CR)) != 0)) | |
4371 | { | |
4372 | len = st.st_fab_mrs; | |
4373 | retval = write (fildes, p, min (len, nbytes)); | |
4374 | if (retval != len) | |
4375 | return -1; | |
4376 | retval++; /* This skips the implied carriage control */ | |
4377 | } | |
4378 | else | |
4379 | { | |
4380 | e = p + min (MAXIOSIZE, nbytes) - 1; | |
4381 | while (*e != '\n' && e > p) e--; | |
4382 | if (p == e) /* Ok.. so here we add a newline... sigh. */ | |
4383 | e = p + min (MAXIOSIZE, nbytes) - 1; | |
4384 | len = e + 1 - p; | |
4385 | retval = write (fildes, p, len); | |
4386 | if (retval != len) | |
4387 | return -1; | |
4388 | } | |
4389 | p += retval; | |
4390 | sum += retval; | |
86a5659e JB |
4391 | nbytes -= retval; |
4392 | } | |
4393 | return sum; | |
4394 | } | |
4395 | ||
4396 | /* Create file NEW copying its attributes from file OLD. If | |
4397 | OLD is 0 or does not exist, create based on the value of | |
4398 | vms_stmlf_recfm. */ | |
4399 | ||
4400 | /* Protection value the file should ultimately have. | |
4401 | Set by create_copy_attrs, and use by rename_sansversions. */ | |
4402 | static unsigned short int fab_final_pro; | |
4403 | ||
4404 | int | |
4405 | creat_copy_attrs (old, new) | |
4406 | char *old, *new; | |
4407 | { | |
4408 | struct FAB fab = cc$rms_fab; | |
4409 | struct XABPRO xabpro; | |
4410 | char aclbuf[256]; /* Choice of size is arbitrary. See below. */ | |
4411 | extern int vms_stmlf_recfm; | |
4412 | ||
4413 | if (old) | |
4414 | { | |
4415 | fab.fab$b_fac = FAB$M_GET; | |
4416 | fab.fab$l_fna = old; | |
4417 | fab.fab$b_fns = strlen (old); | |
4418 | fab.fab$l_xab = (char *) &xabpro; | |
4419 | xabpro = cc$rms_xabpro; | |
4420 | xabpro.xab$l_aclbuf = aclbuf; | |
4421 | xabpro.xab$w_aclsiz = sizeof aclbuf; | |
4422 | /* Call $OPEN to fill in the fab & xabpro fields. */ | |
986ffb24 | 4423 | if (SYS$OPEN (&fab, 0, 0) & 1) |
86a5659e | 4424 | { |
986ffb24 | 4425 | SYS$CLOSE (&fab, 0, 0); |
86a5659e JB |
4426 | fab.fab$l_alq = 0; /* zero the allocation quantity */ |
4427 | if (xabpro.xab$w_acllen > 0) | |
4428 | { | |
4429 | if (xabpro.xab$w_acllen > sizeof aclbuf) | |
4430 | /* If the acl buffer was too short, redo open with longer one. | |
4431 | Wouldn't need to do this if there were some system imposed | |
4432 | limit on the size of an ACL, but I can't find any such. */ | |
4433 | { | |
4434 | xabpro.xab$l_aclbuf = (char *) alloca (xabpro.xab$w_acllen); | |
4435 | xabpro.xab$w_aclsiz = xabpro.xab$w_acllen; | |
986ffb24 JB |
4436 | if (SYS$OPEN (&fab, 0, 0) & 1) |
4437 | SYS$CLOSE (&fab, 0, 0); | |
86a5659e JB |
4438 | else |
4439 | old = 0; | |
4440 | } | |
4441 | } | |
4442 | else | |
4443 | xabpro.xab$l_aclbuf = 0; | |
4444 | } | |
4445 | else | |
4446 | old = 0; | |
4447 | } | |
4448 | fab.fab$l_fna = new; | |
4449 | fab.fab$b_fns = strlen (new); | |
4450 | if (!old) | |
4451 | { | |
4452 | fab.fab$l_xab = 0; | |
4453 | fab.fab$b_rfm = vms_stmlf_recfm ? FAB$C_STMLF : FAB$C_VAR; | |
4454 | fab.fab$b_rat = FAB$M_CR; | |
4455 | } | |
4456 | ||
4457 | /* Set the file protections such that we will be able to manipulate | |
4458 | this file. Once we are done writing and renaming it, we will set | |
4459 | the protections back. */ | |
4460 | if (old) | |
4461 | fab_final_pro = xabpro.xab$w_pro; | |
4462 | else | |
986ffb24 | 4463 | SYS$SETDFPROT (0, &fab_final_pro); |
86a5659e JB |
4464 | xabpro.xab$w_pro &= 0xff0f; /* set O:rewd for now. This is set back later. */ |
4465 | ||
4466 | /* Create the new file with either default attrs or attrs copied | |
4467 | from old file. */ | |
4468 | if (!(SYS$CREATE (&fab, 0, 0) & 1)) | |
4469 | return -1; | |
986ffb24 | 4470 | SYS$CLOSE (&fab, 0, 0); |
86a5659e JB |
4471 | /* As this is a "replacement" for creat, return a file descriptor |
4472 | opened for writing. */ | |
4473 | return open (new, O_WRONLY); | |
4474 | } | |
4475 | ||
4476 | #ifdef creat | |
4477 | #undef creat | |
4478 | #include <varargs.h> | |
4479 | #ifdef __GNUC__ | |
4480 | #ifndef va_count | |
4481 | #define va_count(X) ((X) = *(((int *) &(va_alist)) - 1)) | |
4482 | #endif | |
4483 | #endif | |
4484 | ||
dfcf069d | 4485 | int |
86a5659e JB |
4486 | sys_creat (va_alist) |
4487 | va_dcl | |
4488 | { | |
eb8c3be9 | 4489 | va_list list_incrementer; |
86a5659e JB |
4490 | char *name; |
4491 | int mode; | |
4492 | int rfd; /* related file descriptor */ | |
4493 | int fd; /* Our new file descriptor */ | |
4494 | int count; | |
4495 | struct stat st_buf; | |
4496 | char rfm[12]; | |
4497 | char rat[15]; | |
4498 | char mrs[13]; | |
4499 | char fsz[13]; | |
4500 | extern int vms_stmlf_recfm; | |
4501 | ||
4502 | va_count (count); | |
eb8c3be9 JB |
4503 | va_start (list_incrementer); |
4504 | name = va_arg (list_incrementer, char *); | |
4505 | mode = va_arg (list_incrementer, int); | |
86a5659e | 4506 | if (count > 2) |
eb8c3be9 JB |
4507 | rfd = va_arg (list_incrementer, int); |
4508 | va_end (list_incrementer); | |
86a5659e JB |
4509 | if (count > 2) |
4510 | { | |
4511 | /* Use information from the related file descriptor to set record | |
4512 | format of the newly created file. */ | |
4513 | fstat (rfd, &st_buf); | |
4514 | switch (st_buf.st_fab_rfm) | |
4515 | { | |
4516 | case FAB$C_FIX: | |
4517 | strcpy (rfm, "rfm = fix"); | |
4518 | sprintf (mrs, "mrs = %d", st_buf.st_fab_mrs); | |
4519 | strcpy (rat, "rat = "); | |
4520 | if (st_buf.st_fab_rat & FAB$M_CR) | |
4521 | strcat (rat, "cr"); | |
4522 | else if (st_buf.st_fab_rat & FAB$M_FTN) | |
4523 | strcat (rat, "ftn"); | |
4524 | else if (st_buf.st_fab_rat & FAB$M_PRN) | |
4525 | strcat (rat, "prn"); | |
4526 | if (st_buf.st_fab_rat & FAB$M_BLK) | |
4527 | if (st_buf.st_fab_rat & (FAB$M_CR|FAB$M_FTN|FAB$M_PRN)) | |
4528 | strcat (rat, ", blk"); | |
4529 | else | |
4530 | strcat (rat, "blk"); | |
4531 | return creat (name, 0, rfm, rat, mrs); | |
4532 | ||
4533 | case FAB$C_VFC: | |
4534 | strcpy (rfm, "rfm = vfc"); | |
4535 | sprintf (fsz, "fsz = %d", st_buf.st_fab_fsz); | |
4536 | strcpy (rat, "rat = "); | |
4537 | if (st_buf.st_fab_rat & FAB$M_CR) | |
4538 | strcat (rat, "cr"); | |
4539 | else if (st_buf.st_fab_rat & FAB$M_FTN) | |
4540 | strcat (rat, "ftn"); | |
4541 | else if (st_buf.st_fab_rat & FAB$M_PRN) | |
4542 | strcat (rat, "prn"); | |
4543 | if (st_buf.st_fab_rat & FAB$M_BLK) | |
4544 | if (st_buf.st_fab_rat & (FAB$M_CR|FAB$M_FTN|FAB$M_PRN)) | |
4545 | strcat (rat, ", blk"); | |
4546 | else | |
4547 | strcat (rat, "blk"); | |
4548 | return creat (name, 0, rfm, rat, fsz); | |
4549 | ||
4550 | case FAB$C_STM: | |
4551 | strcpy (rfm, "rfm = stm"); | |
4552 | break; | |
4553 | ||
4554 | case FAB$C_STMCR: | |
4555 | strcpy (rfm, "rfm = stmcr"); | |
4556 | break; | |
4557 | ||
4558 | case FAB$C_STMLF: | |
4559 | strcpy (rfm, "rfm = stmlf"); | |
4560 | break; | |
4561 | ||
4562 | case FAB$C_UDF: | |
4563 | strcpy (rfm, "rfm = udf"); | |
4564 | break; | |
4565 | ||
4566 | case FAB$C_VAR: | |
4567 | strcpy (rfm, "rfm = var"); | |
4568 | break; | |
4569 | } | |
4570 | strcpy (rat, "rat = "); | |
4571 | if (st_buf.st_fab_rat & FAB$M_CR) | |
4572 | strcat (rat, "cr"); | |
4573 | else if (st_buf.st_fab_rat & FAB$M_FTN) | |
4574 | strcat (rat, "ftn"); | |
4575 | else if (st_buf.st_fab_rat & FAB$M_PRN) | |
4576 | strcat (rat, "prn"); | |
4577 | if (st_buf.st_fab_rat & FAB$M_BLK) | |
4578 | if (st_buf.st_fab_rat & (FAB$M_CR|FAB$M_FTN|FAB$M_PRN)) | |
4579 | strcat (rat, ", blk"); | |
4580 | else | |
4581 | strcat (rat, "blk"); | |
4582 | } | |
4583 | else | |
4584 | { | |
4585 | strcpy (rfm, vms_stmlf_recfm ? "rfm = stmlf" : "rfm=var"); | |
4586 | strcpy (rat, "rat=cr"); | |
4587 | } | |
4588 | /* Until the VAX C RTL fixes the many bugs with modes, always use | |
4589 | mode 0 to get the user's default protection. */ | |
4590 | fd = creat (name, 0, rfm, rat); | |
4591 | if (fd < 0 && errno == EEXIST) | |
4592 | { | |
4593 | if (unlink (name) < 0) | |
4594 | report_file_error ("delete", build_string (name)); | |
4595 | fd = creat (name, 0, rfm, rat); | |
4596 | } | |
4597 | return fd; | |
4598 | } | |
4599 | #endif /* creat */ | |
4600 | ||
4601 | /* fwrite to stdout is S L O W. Speed it up by using fputc...*/ | |
dfcf069d | 4602 | int |
86a5659e JB |
4603 | sys_fwrite (ptr, size, num, fp) |
4604 | register char * ptr; | |
4605 | FILE * fp; | |
4606 | { | |
4607 | register int tot = num * size; | |
4608 | ||
4609 | while (tot--) | |
4610 | fputc (*ptr++, fp); | |
dfcf069d | 4611 | return num; |
86a5659e JB |
4612 | } |
4613 | ||
4614 | /* | |
4615 | * The VMS C library routine creat actually creates a new version of an | |
4616 | * existing file rather than truncating the old version. There are times | |
4617 | * when this is not the desired behavior, for instance, when writing an | |
4618 | * auto save file (you only want one version), or when you don't have | |
4619 | * write permission in the directory containing the file (but the file | |
177c0ea7 | 4620 | * itself is writable). Hence this routine, which is equivalent to |
86a5659e JB |
4621 | * "close (creat (fn, 0));" on Unix if fn already exists. |
4622 | */ | |
4623 | int | |
4624 | vms_truncate (fn) | |
4625 | char *fn; | |
4626 | { | |
4627 | struct FAB xfab = cc$rms_fab; | |
4628 | struct RAB xrab = cc$rms_rab; | |
4629 | int status; | |
4630 | ||
4631 | xfab.fab$l_fop = FAB$M_TEF; /* free allocated but unused blocks on close */ | |
4632 | xfab.fab$b_fac = FAB$M_TRN | FAB$M_GET; /* allow truncate and get access */ | |
4633 | xfab.fab$b_shr = FAB$M_NIL; /* allow no sharing - file must be locked */ | |
4634 | xfab.fab$l_fna = fn; | |
4635 | xfab.fab$b_fns = strlen (fn); | |
4636 | xfab.fab$l_dna = ";0"; /* default to latest version of the file */ | |
4637 | xfab.fab$b_dns = 2; | |
4638 | xrab.rab$l_fab = &xfab; | |
4639 | ||
4640 | /* This gibberish opens the file, positions to the first record, and | |
4641 | deletes all records from there until the end of file. */ | |
986ffb24 | 4642 | if ((SYS$OPEN (&xfab) & 01) == 01) |
86a5659e | 4643 | { |
986ffb24 JB |
4644 | if ((SYS$CONNECT (&xrab) & 01) == 01 && |
4645 | (SYS$FIND (&xrab) & 01) == 01 && | |
4646 | (SYS$TRUNCATE (&xrab) & 01) == 01) | |
86a5659e JB |
4647 | status = 0; |
4648 | else | |
4649 | status = -1; | |
4650 | } | |
4651 | else | |
4652 | status = -1; | |
986ffb24 | 4653 | SYS$CLOSE (&xfab); |
86a5659e JB |
4654 | return status; |
4655 | } | |
4656 | ||
4657 | /* Define this symbol to actually read SYSUAF.DAT. This requires either | |
4658 | SYSPRV or a readable SYSUAF.DAT. */ | |
4659 | ||
4660 | #ifdef READ_SYSUAF | |
4661 | /* | |
4662 | * getuaf.c | |
4663 | * | |
4664 | * Routine to read the VMS User Authorization File and return | |
4665 | * a specific user's record. | |
4666 | */ | |
4667 | ||
4668 | static struct UAF retuaf; | |
4669 | ||
4670 | struct UAF * | |
4671 | get_uaf_name (uname) | |
4672 | char * uname; | |
4673 | { | |
4674 | register status; | |
4675 | struct FAB uaf_fab; | |
4676 | struct RAB uaf_rab; | |
177c0ea7 | 4677 | |
86a5659e JB |
4678 | uaf_fab = cc$rms_fab; |
4679 | uaf_rab = cc$rms_rab; | |
4680 | /* initialize fab fields */ | |
4681 | uaf_fab.fab$l_fna = "SYS$SYSTEM:SYSUAF.DAT"; | |
4682 | uaf_fab.fab$b_fns = 21; | |
4683 | uaf_fab.fab$b_fac = FAB$M_GET; | |
4684 | uaf_fab.fab$b_org = FAB$C_IDX; | |
4685 | uaf_fab.fab$b_shr = FAB$M_GET|FAB$M_PUT|FAB$M_UPD|FAB$M_DEL; | |
4686 | /* initialize rab fields */ | |
4687 | uaf_rab.rab$l_fab = &uaf_fab; | |
4688 | /* open the User Authorization File */ | |
986ffb24 | 4689 | status = SYS$OPEN (&uaf_fab); |
86a5659e JB |
4690 | if (!(status&1)) |
4691 | { | |
4692 | errno = EVMSERR; | |
4693 | vaxc$errno = status; | |
4694 | return 0; | |
4695 | } | |
986ffb24 | 4696 | status = SYS$CONNECT (&uaf_rab); |
86a5659e JB |
4697 | if (!(status&1)) |
4698 | { | |
4699 | errno = EVMSERR; | |
4700 | vaxc$errno = status; | |
4701 | return 0; | |
4702 | } | |
4703 | /* read the requested record - index is in uname */ | |
4704 | uaf_rab.rab$l_kbf = uname; | |
4705 | uaf_rab.rab$b_ksz = strlen (uname); | |
4706 | uaf_rab.rab$b_rac = RAB$C_KEY; | |
4707 | uaf_rab.rab$l_ubf = (char *)&retuaf; | |
4708 | uaf_rab.rab$w_usz = sizeof retuaf; | |
986ffb24 | 4709 | status = SYS$GET (&uaf_rab); |
86a5659e JB |
4710 | if (!(status&1)) |
4711 | { | |
4712 | errno = EVMSERR; | |
4713 | vaxc$errno = status; | |
4714 | return 0; | |
4715 | } | |
4716 | /* close the User Authorization File */ | |
986ffb24 | 4717 | status = SYS$DISCONNECT (&uaf_rab); |
86a5659e JB |
4718 | if (!(status&1)) |
4719 | { | |
4720 | errno = EVMSERR; | |
4721 | vaxc$errno = status; | |
4722 | return 0; | |
4723 | } | |
986ffb24 | 4724 | status = SYS$CLOSE (&uaf_fab); |
86a5659e JB |
4725 | if (!(status&1)) |
4726 | { | |
4727 | errno = EVMSERR; | |
4728 | vaxc$errno = status; | |
4729 | return 0; | |
4730 | } | |
4731 | return &retuaf; | |
4732 | } | |
4733 | ||
4734 | struct UAF * | |
4735 | get_uaf_uic (uic) | |
4736 | unsigned long uic; | |
4737 | { | |
4738 | register status; | |
4739 | struct FAB uaf_fab; | |
4740 | struct RAB uaf_rab; | |
177c0ea7 | 4741 | |
86a5659e JB |
4742 | uaf_fab = cc$rms_fab; |
4743 | uaf_rab = cc$rms_rab; | |
4744 | /* initialize fab fields */ | |
4745 | uaf_fab.fab$l_fna = "SYS$SYSTEM:SYSUAF.DAT"; | |
4746 | uaf_fab.fab$b_fns = 21; | |
4747 | uaf_fab.fab$b_fac = FAB$M_GET; | |
4748 | uaf_fab.fab$b_org = FAB$C_IDX; | |
4749 | uaf_fab.fab$b_shr = FAB$M_GET|FAB$M_PUT|FAB$M_UPD|FAB$M_DEL; | |
4750 | /* initialize rab fields */ | |
4751 | uaf_rab.rab$l_fab = &uaf_fab; | |
4752 | /* open the User Authorization File */ | |
986ffb24 | 4753 | status = SYS$OPEN (&uaf_fab); |
86a5659e JB |
4754 | if (!(status&1)) |
4755 | { | |
4756 | errno = EVMSERR; | |
4757 | vaxc$errno = status; | |
4758 | return 0; | |
4759 | } | |
986ffb24 | 4760 | status = SYS$CONNECT (&uaf_rab); |
86a5659e JB |
4761 | if (!(status&1)) |
4762 | { | |
4763 | errno = EVMSERR; | |
4764 | vaxc$errno = status; | |
4765 | return 0; | |
4766 | } | |
4767 | /* read the requested record - index is in uic */ | |
4768 | uaf_rab.rab$b_krf = 1; /* 1st alternate key */ | |
4769 | uaf_rab.rab$l_kbf = (char *) &uic; | |
4770 | uaf_rab.rab$b_ksz = sizeof uic; | |
4771 | uaf_rab.rab$b_rac = RAB$C_KEY; | |
4772 | uaf_rab.rab$l_ubf = (char *)&retuaf; | |
4773 | uaf_rab.rab$w_usz = sizeof retuaf; | |
986ffb24 | 4774 | status = SYS$GET (&uaf_rab); |
86a5659e JB |
4775 | if (!(status&1)) |
4776 | { | |
4777 | errno = EVMSERR; | |
4778 | vaxc$errno = status; | |
4779 | return 0; | |
4780 | } | |
4781 | /* close the User Authorization File */ | |
986ffb24 | 4782 | status = SYS$DISCONNECT (&uaf_rab); |
86a5659e JB |
4783 | if (!(status&1)) |
4784 | { | |
4785 | errno = EVMSERR; | |
4786 | vaxc$errno = status; | |
4787 | return 0; | |
4788 | } | |
986ffb24 | 4789 | status = SYS$CLOSE (&uaf_fab); |
86a5659e JB |
4790 | if (!(status&1)) |
4791 | { | |
4792 | errno = EVMSERR; | |
4793 | vaxc$errno = status; | |
4794 | return 0; | |
4795 | } | |
4796 | return &retuaf; | |
4797 | } | |
4798 | ||
4799 | static struct passwd retpw; | |
4800 | ||
4801 | struct passwd * | |
4802 | cnv_uaf_pw (up) | |
4803 | struct UAF * up; | |
4804 | { | |
4805 | char * ptr; | |
4806 | ||
4807 | /* copy these out first because if the username is 32 chars, the next | |
4808 | section will overwrite the first byte of the UIC */ | |
4809 | retpw.pw_uid = up->uaf$w_mem; | |
4810 | retpw.pw_gid = up->uaf$w_grp; | |
4811 | ||
ea5a0917 | 4812 | /* I suppose this is not the best style, to possibly overwrite one |
86a5659e JB |
4813 | byte beyond the end of the field, but what the heck... */ |
4814 | ptr = &up->uaf$t_username[UAF$S_USERNAME]; | |
4815 | while (ptr[-1] == ' ') | |
4816 | ptr--; | |
4817 | *ptr = '\0'; | |
4818 | strcpy (retpw.pw_name, up->uaf$t_username); | |
4819 | ||
4820 | /* the rest of these are counted ascii strings */ | |
4821 | strncpy (retpw.pw_gecos, &up->uaf$t_owner[1], up->uaf$t_owner[0]); | |
4822 | retpw.pw_gecos[up->uaf$t_owner[0]] = '\0'; | |
4823 | strncpy (retpw.pw_dir, &up->uaf$t_defdev[1], up->uaf$t_defdev[0]); | |
4824 | retpw.pw_dir[up->uaf$t_defdev[0]] = '\0'; | |
4825 | strncat (retpw.pw_dir, &up->uaf$t_defdir[1], up->uaf$t_defdir[0]); | |
4826 | retpw.pw_dir[up->uaf$t_defdev[0] + up->uaf$t_defdir[0]] = '\0'; | |
4827 | strncpy (retpw.pw_shell, &up->uaf$t_defcli[1], up->uaf$t_defcli[0]); | |
4828 | retpw.pw_shell[up->uaf$t_defcli[0]] = '\0'; | |
4829 | ||
4830 | return &retpw; | |
4831 | } | |
4832 | #else /* not READ_SYSUAF */ | |
4833 | static struct passwd retpw; | |
4834 | #endif /* not READ_SYSUAF */ | |
4835 | ||
4836 | struct passwd * | |
4837 | getpwnam (name) | |
4838 | char * name; | |
4839 | { | |
4840 | #ifdef READ_SYSUAF | |
4841 | struct UAF *up; | |
4842 | #else | |
4843 | char * user; | |
4844 | char * dir; | |
4845 | unsigned char * full; | |
4846 | #endif /* READ_SYSUAF */ | |
4847 | char *ptr = name; | |
4848 | ||
4849 | while (*ptr) | |
4850 | { | |
4851 | if ('a' <= *ptr && *ptr <= 'z') | |
4852 | *ptr -= 040; | |
4853 | ptr++; | |
4854 | } | |
4855 | #ifdef READ_SYSUAF | |
4856 | if (!(up = get_uaf_name (name))) | |
4857 | return 0; | |
4858 | return cnv_uaf_pw (up); | |
4859 | #else | |
4860 | if (strcmp (name, getenv ("USER")) == 0) | |
4861 | { | |
4862 | retpw.pw_uid = getuid (); | |
4863 | retpw.pw_gid = getgid (); | |
4864 | strcpy (retpw.pw_name, name); | |
4865 | if (full = egetenv ("FULLNAME")) | |
4866 | strcpy (retpw.pw_gecos, full); | |
4867 | else | |
4868 | *retpw.pw_gecos = '\0'; | |
4869 | strcpy (retpw.pw_dir, egetenv ("HOME")); | |
4870 | *retpw.pw_shell = '\0'; | |
4871 | return &retpw; | |
4872 | } | |
4873 | else | |
4874 | return 0; | |
4875 | #endif /* not READ_SYSUAF */ | |
4876 | } | |
4877 | ||
4878 | struct passwd * | |
4879 | getpwuid (uid) | |
4880 | unsigned long uid; | |
4881 | { | |
4882 | #ifdef READ_SYSUAF | |
4883 | struct UAF * up; | |
4884 | ||
4885 | if (!(up = get_uaf_uic (uid))) | |
4886 | return 0; | |
4887 | return cnv_uaf_pw (up); | |
4888 | #else | |
4889 | if (uid == sys_getuid ()) | |
4890 | return getpwnam (egetenv ("USER")); | |
4891 | else | |
4892 | return 0; | |
4893 | #endif /* not READ_SYSUAF */ | |
4894 | } | |
4895 | ||
4896 | /* return total address space available to the current process. This is | |
4897 | the sum of the current p0 size, p1 size and free page table entries | |
4898 | available. */ | |
dfcf069d | 4899 | int |
86a5659e JB |
4900 | vlimit () |
4901 | { | |
4902 | int item_code; | |
4903 | unsigned long free_pages; | |
4904 | unsigned long frep0va; | |
4905 | unsigned long frep1va; | |
4906 | register status; | |
4907 | ||
4908 | item_code = JPI$_FREPTECNT; | |
4909 | if (((status = LIB$GETJPI (&item_code, 0, 0, &free_pages)) & 1) == 0) | |
4910 | { | |
4911 | errno = EVMSERR; | |
4912 | vaxc$errno = status; | |
4913 | return -1; | |
4914 | } | |
4915 | free_pages *= 512; | |
4916 | ||
4917 | item_code = JPI$_FREP0VA; | |
4918 | if (((status = LIB$GETJPI (&item_code, 0, 0, &frep0va)) & 1) == 0) | |
4919 | { | |
4920 | errno = EVMSERR; | |
4921 | vaxc$errno = status; | |
4922 | return -1; | |
4923 | } | |
4924 | item_code = JPI$_FREP1VA; | |
4925 | if (((status = LIB$GETJPI (&item_code, 0, 0, &frep1va)) & 1) == 0) | |
4926 | { | |
4927 | errno = EVMSERR; | |
4928 | vaxc$errno = status; | |
4929 | return -1; | |
4930 | } | |
4931 | ||
4932 | return free_pages + frep0va + (0x7fffffff - frep1va); | |
4933 | } | |
4934 | ||
dfcf069d | 4935 | int |
86a5659e JB |
4936 | define_logical_name (varname, string) |
4937 | char *varname; | |
4938 | char *string; | |
4939 | { | |
4940 | struct dsc$descriptor_s strdsc = | |
4941 | {strlen (string), DSC$K_DTYPE_T, DSC$K_CLASS_S, string}; | |
4942 | struct dsc$descriptor_s envdsc = | |
4943 | {strlen (varname), DSC$K_DTYPE_T, DSC$K_CLASS_S, varname}; | |
4944 | struct dsc$descriptor_s lnmdsc = | |
4945 | {7, DSC$K_DTYPE_T, DSC$K_CLASS_S, "LNM$JOB"}; | |
4946 | ||
4947 | return LIB$SET_LOGICAL (&envdsc, &strdsc, &lnmdsc, 0, 0); | |
4948 | } | |
4949 | ||
dfcf069d | 4950 | int |
86a5659e JB |
4951 | delete_logical_name (varname) |
4952 | char *varname; | |
4953 | { | |
4954 | struct dsc$descriptor_s envdsc = | |
4955 | {strlen (varname), DSC$K_DTYPE_T, DSC$K_CLASS_S, varname}; | |
4956 | struct dsc$descriptor_s lnmdsc = | |
4957 | {7, DSC$K_DTYPE_T, DSC$K_CLASS_S, "LNM$JOB"}; | |
4958 | ||
4959 | return LIB$DELETE_LOGICAL (&envdsc, &lnmdsc); | |
4960 | } | |
4961 | ||
dfcf069d | 4962 | int |
86a5659e | 4963 | ulimit () |
dfcf069d AS |
4964 | { |
4965 | return 0; | |
4966 | } | |
86a5659e | 4967 | |
dfcf069d | 4968 | int |
86a5659e | 4969 | setpgrp () |
dfcf069d AS |
4970 | { |
4971 | return 0; | |
4972 | } | |
86a5659e | 4973 | |
dfcf069d | 4974 | int |
86a5659e JB |
4975 | execvp () |
4976 | { | |
4977 | error ("execvp system call not implemented"); | |
dfcf069d | 4978 | return -1; |
86a5659e JB |
4979 | } |
4980 | ||
4981 | int | |
4982 | rename (from, to) | |
4983 | char *from, *to; | |
4984 | { | |
4985 | int status; | |
4986 | struct FAB from_fab = cc$rms_fab, to_fab = cc$rms_fab; | |
4987 | struct NAM from_nam = cc$rms_nam, to_nam = cc$rms_nam; | |
4988 | char from_esn[NAM$C_MAXRSS]; | |
4989 | char to_esn[NAM$C_MAXRSS]; | |
4990 | ||
4991 | from_fab.fab$l_fna = from; | |
4992 | from_fab.fab$b_fns = strlen (from); | |
4993 | from_fab.fab$l_nam = &from_nam; | |
4994 | from_fab.fab$l_fop = FAB$M_NAM; | |
4995 | ||
4996 | from_nam.nam$l_esa = from_esn; | |
4997 | from_nam.nam$b_ess = sizeof from_esn; | |
4998 | ||
4999 | to_fab.fab$l_fna = to; | |
5000 | to_fab.fab$b_fns = strlen (to); | |
5001 | to_fab.fab$l_nam = &to_nam; | |
5002 | to_fab.fab$l_fop = FAB$M_NAM; | |
5003 | ||
5004 | to_nam.nam$l_esa = to_esn; | |
5005 | to_nam.nam$b_ess = sizeof to_esn; | |
5006 | ||
5007 | status = SYS$RENAME (&from_fab, 0, 0, &to_fab); | |
5008 | ||
5009 | if (status & 1) | |
5010 | return 0; | |
5011 | else | |
5012 | { | |
5013 | if (status == RMS$_DEV) | |
5014 | errno = EXDEV; | |
5015 | else | |
5016 | errno = EVMSERR; | |
5017 | vaxc$errno = status; | |
5018 | return -1; | |
5019 | } | |
5020 | } | |
5021 | ||
5022 | /* This function renames a file like `rename', but it strips | |
5023 | the version number from the "to" filename, such that the "to" file is | |
5024 | will always be a new version. It also sets the file protection once it is | |
5025 | finished. The protection that we will use is stored in fab_final_pro, | |
5026 | and was set when we did a creat_copy_attrs to create the file that we | |
5027 | are renaming. | |
5028 | ||
5029 | We could use the chmod function, but Eunichs uses 3 bits per user category | |
eb8c3be9 | 5030 | to describe the protection, and VMS uses 4 (write and delete are separate |
86a5659e JB |
5031 | bits). To maintain portability, the VMS implementation of `chmod' wires |
5032 | the W and D bits together. */ | |
5033 | ||
177c0ea7 | 5034 | |
86a5659e JB |
5035 | static struct fibdef fib; /* We need this initialized to zero */ |
5036 | char vms_file_written[NAM$C_MAXRSS]; | |
5037 | ||
5038 | int | |
5039 | rename_sans_version (from,to) | |
5040 | char *from, *to; | |
5041 | { | |
5042 | short int chan; | |
5043 | int stat; | |
5044 | short int iosb[4]; | |
5045 | int status; | |
5046 | struct FAB to_fab = cc$rms_fab; | |
5047 | struct NAM to_nam = cc$rms_nam; | |
5048 | struct dsc$descriptor fib_d ={sizeof (fib),0,0,(char*) &fib}; | |
5049 | struct dsc$descriptor fib_attr[2] | |
5050 | = {{sizeof (fab_final_pro),ATR$C_FPRO,0,(char*) &fab_final_pro},{0,0,0,0}}; | |
5051 | char to_esn[NAM$C_MAXRSS]; | |
5052 | ||
5053 | $DESCRIPTOR (disk,to_esn); | |
5054 | ||
5055 | to_fab.fab$l_fna = to; | |
5056 | to_fab.fab$b_fns = strlen (to); | |
5057 | to_fab.fab$l_nam = &to_nam; | |
5058 | to_fab.fab$l_fop = FAB$M_NAM; | |
5059 | ||
5060 | to_nam.nam$l_esa = to_esn; | |
5061 | to_nam.nam$b_ess = sizeof to_esn; | |
5062 | ||
5063 | status = SYS$PARSE (&to_fab, 0, 0); /* figure out the full file name */ | |
5064 | ||
5065 | if (to_nam.nam$l_fnb && NAM$M_EXP_VER) | |
5066 | *(to_nam.nam$l_ver) = '\0'; | |
5067 | ||
5068 | stat = rename (from, to_esn); | |
5069 | if (stat < 0) | |
5070 | return stat; | |
5071 | ||
5072 | strcpy (vms_file_written, to_esn); | |
5073 | ||
5074 | to_fab.fab$l_fna = vms_file_written; /* this points to the versionless name */ | |
5075 | to_fab.fab$b_fns = strlen (vms_file_written); | |
5076 | ||
5077 | /* Now set the file protection to the correct value */ | |
986ffb24 | 5078 | SYS$OPEN (&to_fab, 0, 0); /* This fills in the nam$w_fid fields */ |
86a5659e JB |
5079 | |
5080 | /* Copy these fields into the fib */ | |
5081 | fib.fib$r_fid_overlay.fib$w_fid[0] = to_nam.nam$w_fid[0]; | |
5082 | fib.fib$r_fid_overlay.fib$w_fid[1] = to_nam.nam$w_fid[1]; | |
5083 | fib.fib$r_fid_overlay.fib$w_fid[2] = to_nam.nam$w_fid[2]; | |
5084 | ||
986ffb24 | 5085 | SYS$CLOSE (&to_fab, 0, 0); |
86a5659e | 5086 | |
986ffb24 | 5087 | stat = SYS$ASSIGN (&disk, &chan, 0, 0); /* open a channel to the disk */ |
86a5659e | 5088 | if (!stat) |
986ffb24 JB |
5089 | LIB$SIGNAL (stat); |
5090 | stat = SYS$QIOW (0, chan, IO$_MODIFY, iosb, 0, 0, &fib_d, | |
86a5659e JB |
5091 | 0, 0, 0, &fib_attr, 0); |
5092 | if (!stat) | |
986ffb24 JB |
5093 | LIB$SIGNAL (stat); |
5094 | stat = SYS$DASSGN (chan); | |
86a5659e | 5095 | if (!stat) |
986ffb24 | 5096 | LIB$SIGNAL (stat); |
0137dbf7 | 5097 | strcpy (vms_file_written, to_esn); /* We will write this to the terminal*/ |
86a5659e JB |
5098 | return 0; |
5099 | } | |
5100 | ||
dfcf069d | 5101 | int |
86a5659e JB |
5102 | link (file, new) |
5103 | char * file, * new; | |
5104 | { | |
5105 | register status; | |
5106 | struct FAB fab; | |
5107 | struct NAM nam; | |
5108 | unsigned short fid[3]; | |
5109 | char esa[NAM$C_MAXRSS]; | |
5110 | ||
5111 | fab = cc$rms_fab; | |
5112 | fab.fab$l_fop = FAB$M_OFP; | |
5113 | fab.fab$l_fna = file; | |
5114 | fab.fab$b_fns = strlen (file); | |
5115 | fab.fab$l_nam = &nam; | |
5116 | ||
5117 | nam = cc$rms_nam; | |
5118 | nam.nam$l_esa = esa; | |
5119 | nam.nam$b_ess = NAM$C_MAXRSS; | |
5120 | ||
5121 | status = SYS$PARSE (&fab); | |
5122 | if ((status & 1) == 0) | |
5123 | { | |
5124 | errno = EVMSERR; | |
5125 | vaxc$errno = status; | |
5126 | return -1; | |
5127 | } | |
5128 | status = SYS$SEARCH (&fab); | |
5129 | if ((status & 1) == 0) | |
5130 | { | |
5131 | errno = EVMSERR; | |
5132 | vaxc$errno = status; | |
5133 | return -1; | |
5134 | } | |
5135 | ||
5136 | fid[0] = nam.nam$w_fid[0]; | |
5137 | fid[1] = nam.nam$w_fid[1]; | |
5138 | fid[2] = nam.nam$w_fid[2]; | |
5139 | ||
5140 | fab.fab$l_fna = new; | |
5141 | fab.fab$b_fns = strlen (new); | |
5142 | ||
5143 | status = SYS$PARSE (&fab); | |
5144 | if ((status & 1) == 0) | |
5145 | { | |
5146 | errno = EVMSERR; | |
5147 | vaxc$errno = status; | |
5148 | return -1; | |
5149 | } | |
5150 | ||
5151 | nam.nam$w_fid[0] = fid[0]; | |
5152 | nam.nam$w_fid[1] = fid[1]; | |
5153 | nam.nam$w_fid[2] = fid[2]; | |
5154 | ||
5155 | nam.nam$l_esa = nam.nam$l_name; | |
5156 | nam.nam$b_esl = nam.nam$b_name + nam.nam$b_type + nam.nam$b_ver; | |
5157 | ||
5158 | status = SYS$ENTER (&fab); | |
5159 | if ((status & 1) == 0) | |
5160 | { | |
5161 | errno = EVMSERR; | |
5162 | vaxc$errno = status; | |
5163 | return -1; | |
5164 | } | |
5165 | ||
5166 | return 0; | |
5167 | } | |
5168 | ||
dfcf069d | 5169 | void |
86a5659e JB |
5170 | croak (badfunc) |
5171 | char *badfunc; | |
5172 | { | |
5173 | printf ("%s not yet implemented\r\n", badfunc); | |
28d440ab | 5174 | reset_all_sys_modes (); |
86a5659e JB |
5175 | exit (1); |
5176 | } | |
5177 | ||
5178 | long | |
5179 | random () | |
5180 | { | |
5181 | /* Arrange to return a range centered on zero. */ | |
5182 | return rand () - (1 << 30); | |
5183 | } | |
5184 | ||
dfcf069d | 5185 | void |
86a5659e JB |
5186 | srandom (seed) |
5187 | { | |
5188 | srand (seed); | |
5189 | } | |
5190 | #endif /* VMS */ | |
5191 | \f | |
b97ab886 | 5192 | #ifdef AIXHFT |
86a5659e JB |
5193 | |
5194 | /* Called from init_sys_modes. */ | |
dfcf069d | 5195 | void |
28d7d09f | 5196 | hft_init (struct tty_display_info *tty_out) |
86a5659e JB |
5197 | { |
5198 | int junk; | |
5199 | ||
5200 | /* If we're not on an HFT we shouldn't do any of this. We determine | |
5201 | if we are on an HFT by trying to get an HFT error code. If this | |
177c0ea7 | 5202 | call fails, we're not on an HFT. */ |
86a5659e JB |
5203 | #ifdef IBMR2AIX |
5204 | if (ioctl (0, HFQERROR, &junk) < 0) | |
5205 | return; | |
5206 | #else /* not IBMR2AIX */ | |
5207 | if (ioctl (0, HFQEIO, 0) < 0) | |
5208 | return; | |
5209 | #endif /* not IBMR2AIX */ | |
5210 | ||
5211 | /* On AIX the default hft keyboard mapping uses backspace rather than delete | |
5212 | as the rubout key's ASCII code. Here this is changed. The bug is that | |
5213 | there's no way to determine the old mapping, so in reset_sys_modes | |
5214 | we need to assume that the normal map had been present. Of course, this | |
5215 | code also doesn't help if on a terminal emulator which doesn't understand | |
c4ea52a6 | 5216 | HFT VTD's. */ |
86a5659e JB |
5217 | { |
5218 | struct hfbuf buf; | |
5219 | struct hfkeymap keymap; | |
5220 | ||
5221 | buf.hf_bufp = (char *)&keymap; | |
5222 | buf.hf_buflen = sizeof (keymap); | |
5223 | keymap.hf_nkeys = 2; | |
5224 | keymap.hfkey[0].hf_kpos = 15; | |
5225 | keymap.hfkey[0].hf_kstate = HFMAPCHAR | HFSHFNONE; | |
5226 | #ifdef IBMR2AIX | |
5227 | keymap.hfkey[0].hf_keyidh = '<'; | |
5228 | #else /* not IBMR2AIX */ | |
5229 | keymap.hfkey[0].hf_page = '<'; | |
5230 | #endif /* not IBMR2AIX */ | |
5231 | keymap.hfkey[0].hf_char = 127; | |
5232 | keymap.hfkey[1].hf_kpos = 15; | |
5233 | keymap.hfkey[1].hf_kstate = HFMAPCHAR | HFSHFSHFT; | |
5234 | #ifdef IBMR2AIX | |
5235 | keymap.hfkey[1].hf_keyidh = '<'; | |
5236 | #else /* not IBMR2AIX */ | |
5237 | keymap.hfkey[1].hf_page = '<'; | |
5238 | #endif /* not IBMR2AIX */ | |
5239 | keymap.hfkey[1].hf_char = 127; | |
5240 | hftctl (0, HFSKBD, &buf); | |
5241 | } | |
86a5659e JB |
5242 | } |
5243 | ||
c4ea52a6 | 5244 | /* Reset the rubout key to backspace. */ |
86a5659e | 5245 | |
dfcf069d | 5246 | void |
28d7d09f | 5247 | hft_reset (struct tty_display_info *tty_out) |
86a5659e JB |
5248 | { |
5249 | struct hfbuf buf; | |
5250 | struct hfkeymap keymap; | |
5251 | int junk; | |
5252 | ||
5253 | #ifdef IBMR2AIX | |
5254 | if (ioctl (0, HFQERROR, &junk) < 0) | |
5255 | return; | |
5256 | #else /* not IBMR2AIX */ | |
5257 | if (ioctl (0, HFQEIO, 0) < 0) | |
5258 | return; | |
5259 | #endif /* not IBMR2AIX */ | |
5260 | ||
5261 | buf.hf_bufp = (char *)&keymap; | |
5262 | buf.hf_buflen = sizeof (keymap); | |
5263 | keymap.hf_nkeys = 2; | |
5264 | keymap.hfkey[0].hf_kpos = 15; | |
5265 | keymap.hfkey[0].hf_kstate = HFMAPCHAR | HFSHFNONE; | |
5266 | #ifdef IBMR2AIX | |
5267 | keymap.hfkey[0].hf_keyidh = '<'; | |
5268 | #else /* not IBMR2AIX */ | |
5269 | keymap.hfkey[0].hf_page = '<'; | |
5270 | #endif /* not IBMR2AIX */ | |
5271 | keymap.hfkey[0].hf_char = 8; | |
5272 | keymap.hfkey[1].hf_kpos = 15; | |
5273 | keymap.hfkey[1].hf_kstate = HFMAPCHAR | HFSHFSHFT; | |
5274 | #ifdef IBMR2AIX | |
5275 | keymap.hfkey[1].hf_keyidh = '<'; | |
5276 | #else /* not IBMR2AIX */ | |
5277 | keymap.hfkey[1].hf_page = '<'; | |
5278 | #endif /* not IBMR2AIX */ | |
5279 | keymap.hfkey[1].hf_char = 8; | |
5280 | hftctl (0, HFSKBD, &buf); | |
5281 | } | |
5282 | ||
b97ab886 | 5283 | #endif /* AIXHFT */ |
c238be24 | 5284 | |
51417996 RS |
5285 | \f |
5286 | #ifndef BSTRING | |
5287 | ||
5288 | #ifndef bzero | |
5289 | ||
5290 | void | |
5291 | bzero (b, length) | |
5292 | register char *b; | |
5293 | register int length; | |
5294 | { | |
5295 | #ifdef VMS | |
5296 | short zero = 0; | |
5297 | long max_str = 65535; | |
5298 | ||
5299 | while (length > max_str) { | |
5300 | (void) LIB$MOVC5 (&zero, &zero, &zero, &max_str, b); | |
5301 | length -= max_str; | |
5302 | b += max_str; | |
5303 | } | |
5304 | max_str = length; | |
5305 | (void) LIB$MOVC5 (&zero, &zero, &zero, &max_str, b); | |
5306 | #else | |
5307 | while (length-- > 0) | |
5308 | *b++ = 0; | |
5309 | #endif /* not VMS */ | |
5310 | } | |
5311 | ||
5312 | #endif /* no bzero */ | |
5313 | #endif /* BSTRING */ | |
5314 | ||
c7f93f28 | 5315 | #if (!defined (BSTRING) && !defined (bcopy)) || defined (NEED_BCOPY) |
51417996 RS |
5316 | #undef bcopy |
5317 | ||
5318 | /* Saying `void' requires a declaration, above, where bcopy is used | |
5319 | and that declaration causes pain for systems where bcopy is a macro. */ | |
5320 | bcopy (b1, b2, length) | |
5321 | register char *b1; | |
5322 | register char *b2; | |
5323 | register int length; | |
5324 | { | |
5325 | #ifdef VMS | |
5326 | long max_str = 65535; | |
5327 | ||
5328 | while (length > max_str) { | |
5329 | (void) LIB$MOVC3 (&max_str, b1, b2); | |
5330 | length -= max_str; | |
5331 | b1 += max_str; | |
5332 | b2 += max_str; | |
5333 | } | |
5334 | max_str = length; | |
5335 | (void) LIB$MOVC3 (&length, b1, b2); | |
5336 | #else | |
5337 | while (length-- > 0) | |
5338 | *b2++ = *b1++; | |
5339 | #endif /* not VMS */ | |
5340 | } | |
dfcf069d | 5341 | #endif /* (!defined (BSTRING) && !defined (bcopy)) || defined (NEED_BCOPY) */ |
51417996 | 5342 | |
c7f93f28 | 5343 | #ifndef BSTRING |
51417996 RS |
5344 | #ifndef bcmp |
5345 | int | |
5346 | bcmp (b1, b2, length) /* This could be a macro! */ | |
5347 | register char *b1; | |
5348 | register char *b2; | |
5349 | register int length; | |
5350 | { | |
5351 | #ifdef VMS | |
5352 | struct dsc$descriptor_s src1 = {length, DSC$K_DTYPE_T, DSC$K_CLASS_S, b1}; | |
5353 | struct dsc$descriptor_s src2 = {length, DSC$K_DTYPE_T, DSC$K_CLASS_S, b2}; | |
5354 | ||
5355 | return STR$COMPARE (&src1, &src2); | |
5356 | #else | |
5357 | while (length-- > 0) | |
5358 | if (*b1++ != *b2++) | |
5359 | return 1; | |
5360 | ||
5361 | return 0; | |
5362 | #endif /* not VMS */ | |
5363 | } | |
5364 | #endif /* no bcmp */ | |
5365 | #endif /* not BSTRING */ | |
68c45bf0 PE |
5366 | \f |
5367 | #ifndef HAVE_STRSIGNAL | |
5368 | char * | |
5369 | strsignal (code) | |
5370 | int code; | |
5371 | { | |
5372 | char *signame = 0; | |
5373 | ||
5374 | if (0 <= code && code < NSIG) | |
5375 | { | |
5376 | #ifdef VMS | |
5377 | signame = sys_errlist[code]; | |
5378 | #else | |
5379 | /* Cast to suppress warning if the table has const char *. */ | |
5380 | signame = (char *) sys_siglist[code]; | |
5381 | #endif | |
5382 | } | |
c4ea52a6 | 5383 | |
68c45bf0 PE |
5384 | return signame; |
5385 | } | |
5386 | #endif /* HAVE_STRSIGNAL */ | |
d888760c GM |
5387 | \f |
5388 | #ifdef HAVE_TERMIOS | |
5389 | /* For make-serial-process */ | |
5390 | int serial_open (char *port) | |
5391 | { | |
5392 | int fd = -1; | |
5393 | ||
5394 | fd = emacs_open ((char*) port, | |
5395 | O_RDWR | |
5396 | #ifdef O_NONBLOCK | |
5397 | | O_NONBLOCK | |
5398 | #else | |
5399 | | O_NDELAY | |
5400 | #endif | |
5401 | #ifdef O_NOCTTY | |
5402 | | O_NOCTTY | |
5403 | #endif | |
5404 | , 0); | |
5405 | if (fd < 0) | |
5406 | { | |
5407 | error ("Could not open %s: %s", | |
5408 | port, emacs_strerror (errno)); | |
5409 | } | |
5410 | #ifdef TIOCEXCL | |
5411 | ioctl (fd, TIOCEXCL, (char *) 0); | |
5412 | #endif | |
5413 | ||
5414 | return fd; | |
5415 | } | |
5416 | #endif /* TERMIOS */ | |
5417 | ||
5418 | #ifdef HAVE_TERMIOS | |
5419 | /* For serial-process-configure */ | |
5420 | void | |
5421 | serial_configure (struct Lisp_Process *p, | |
5422 | Lisp_Object contact) | |
5423 | { | |
5424 | Lisp_Object childp2 = Qnil; | |
5425 | Lisp_Object tem = Qnil; | |
5426 | struct termios attr; | |
5427 | int err = -1; | |
5428 | char summary[4] = "???"; /* This usually becomes "8N1". */ | |
5429 | ||
5430 | childp2 = Fcopy_sequence (p->childp); | |
5431 | ||
5432 | /* Read port attributes and prepare default configuration. */ | |
5433 | err = tcgetattr (p->outfd, &attr); | |
5434 | if (err != 0) | |
5435 | error ("tcgetattr() failed: %s", emacs_strerror (errno)); | |
5436 | cfmakeraw (&attr); | |
5437 | #if defined (CLOCAL) | |
5438 | attr.c_cflag |= CLOCAL; | |
5439 | #endif | |
5440 | #if defined (CREAD) | |
5441 | attr.c_cflag | CREAD; | |
5442 | #endif | |
5443 | ||
5444 | /* Configure speed. */ | |
5445 | if (!NILP (Fplist_member (contact, QCspeed))) | |
5446 | tem = Fplist_get (contact, QCspeed); | |
5447 | else | |
5448 | tem = Fplist_get (p->childp, QCspeed); | |
5449 | CHECK_NUMBER (tem); | |
5450 | err = cfsetspeed (&attr, XINT (tem)); | |
5451 | if (err != 0) | |
5452 | error ("cfsetspeed(%d) failed: %s", XINT (tem), emacs_strerror (errno)); | |
5453 | childp2 = Fplist_put (childp2, QCspeed, tem); | |
5454 | ||
5455 | /* Configure bytesize. */ | |
5456 | if (!NILP (Fplist_member (contact, QCbytesize))) | |
5457 | tem = Fplist_get (contact, QCbytesize); | |
5458 | else | |
5459 | tem = Fplist_get (p->childp, QCbytesize); | |
5460 | if (NILP (tem)) | |
5461 | tem = make_number (8); | |
5462 | CHECK_NUMBER (tem); | |
5463 | if (XINT (tem) != 7 && XINT (tem) != 8) | |
5464 | error (":bytesize must be nil (8), 7, or 8"); | |
5465 | summary[0] = XINT(tem) + '0'; | |
5466 | #if defined (CSIZE) && defined (CS7) && defined (CS8) | |
5467 | attr.c_cflag &= ~CSIZE; | |
5468 | attr.c_cflag |= ((XINT (tem) == 7) ? CS7 : CS8); | |
5469 | #else | |
5470 | /* Don't error on bytesize 8, which should be set by cfmakeraw(). */ | |
5471 | if (XINT (tem) != 8) | |
5472 | error ("Bytesize cannot be changed"); | |
5473 | #endif | |
5474 | childp2 = Fplist_put (childp2, QCbytesize, tem); | |
5475 | ||
5476 | /* Configure parity. */ | |
5477 | if (!NILP (Fplist_member (contact, QCparity))) | |
5478 | tem = Fplist_get (contact, QCparity); | |
5479 | else | |
5480 | tem = Fplist_get (p->childp, QCparity); | |
5481 | if (!NILP (tem) && !EQ (tem, Qeven) && !EQ (tem, Qodd)) | |
5482 | error (":parity must be nil (no parity), `even', or `odd'"); | |
5483 | #if defined (PARENB) && defined (PARODD) && defined (IGNPAR) && defined (INPCK) | |
5484 | attr.c_cflag &= ~(PARENB | PARODD); | |
5485 | attr.c_iflag &= ~(IGNPAR | INPCK); | |
5486 | if (NILP (tem)) | |
5487 | { | |
5488 | summary[1] = 'N'; | |
5489 | } | |
5490 | else if (EQ (tem, Qeven)) | |
5491 | { | |
5492 | summary[1] = 'E'; | |
5493 | attr.c_cflag |= PARENB; | |
5494 | attr.c_iflag |= (IGNPAR | INPCK); | |
5495 | } | |
5496 | else if (EQ (tem, Qodd)) | |
5497 | { | |
5498 | summary[1] = 'O'; | |
5499 | attr.c_cflag |= (PARENB | PARODD); | |
5500 | attr.c_iflag |= (IGNPAR | INPCK); | |
5501 | } | |
5502 | #else | |
5503 | /* Don't error on no parity, which should be set by cfmakeraw(). */ | |
5504 | if (!NILP (tem)) | |
5505 | error ("Parity cannot be configured"); | |
5506 | #endif | |
5507 | childp2 = Fplist_put (childp2, QCparity, tem); | |
5508 | ||
5509 | /* Configure stopbits. */ | |
5510 | if (!NILP (Fplist_member (contact, QCstopbits))) | |
5511 | tem = Fplist_get (contact, QCstopbits); | |
5512 | else | |
5513 | tem = Fplist_get (p->childp, QCstopbits); | |
5514 | if (NILP (tem)) | |
5515 | tem = make_number (1); | |
5516 | CHECK_NUMBER (tem); | |
5517 | if (XINT (tem) != 1 && XINT (tem) != 2) | |
5518 | error (":stopbits must be nil (1 stopbit), 1, or 2"); | |
5519 | summary[2] = XINT (tem) + '0'; | |
5520 | #if defined (CSTOPB) | |
5521 | attr.c_cflag &= ~CSTOPB; | |
5522 | if (XINT (tem) == 2) | |
5523 | attr.c_cflag |= CSTOPB; | |
5524 | #else | |
5525 | /* Don't error on 1 stopbit, which should be set by cfmakeraw(). */ | |
5526 | if (XINT (tem) != 1) | |
5527 | error ("Stopbits cannot be configured"); | |
5528 | #endif | |
5529 | childp2 = Fplist_put (childp2, QCstopbits, tem); | |
5530 | ||
5531 | /* Configure flowcontrol. */ | |
5532 | if (!NILP (Fplist_member (contact, QCflowcontrol))) | |
5533 | tem = Fplist_get (contact, QCflowcontrol); | |
5534 | else | |
5535 | tem = Fplist_get (p->childp, QCflowcontrol); | |
5536 | if (!NILP (tem) && !EQ (tem, Qhw) && !EQ (tem, Qsw)) | |
5537 | error (":flowcontrol must be nil (no flowcontrol), `hw', or `sw'"); | |
5538 | #if defined (CRTSCTS) | |
5539 | attr.c_cflag &= ~CRTSCTS; | |
5540 | #endif | |
5541 | #if defined (CNEW_RTSCTS) | |
5542 | attr.c_cflag &= ~CNEW_RTSCTS; | |
5543 | #endif | |
5544 | #if defined (IXON) && defined (IXOFF) | |
5545 | attr.c_iflag &= ~(IXON | IXOFF); | |
5546 | #endif | |
5547 | if (NILP (tem)) | |
5548 | { | |
5549 | /* Already configured. */ | |
5550 | } | |
5551 | else if (EQ (tem, Qhw)) | |
5552 | { | |
5553 | #if defined (CRTSCTS) | |
5554 | attr.c_cflag |= CRTSCTS; | |
5555 | #elif defined (CNEW_RTSCTS) | |
5556 | attr.c_cflag |= CNEW_RTSCTS; | |
5557 | #else | |
5558 | error ("Hardware flowcontrol (RTS/CTS) not supported"); | |
5559 | #endif | |
5560 | } | |
5561 | else if (EQ (tem, Qsw)) | |
5562 | { | |
5563 | #if defined (IXON) && defined (IXOFF) | |
5564 | attr.c_iflag |= (IXON | IXOFF); | |
5565 | #else | |
5566 | error ("Software flowcontrol (XON/XOFF) not supported"); | |
5567 | #endif | |
5568 | } | |
5569 | childp2 = Fplist_put (childp2, QCflowcontrol, tem); | |
5570 | ||
5571 | /* Activate configuration. */ | |
5572 | err = tcsetattr (p->outfd, TCSANOW, &attr); | |
5573 | if (err != 0) | |
5574 | error ("tcsetattr() failed: %s", emacs_strerror (errno)); | |
5575 | ||
5576 | childp2 = Fplist_put (childp2, QCsummary, build_string (summary)); | |
5577 | p->childp = childp2; | |
5578 | ||
5579 | } | |
5580 | #endif /* TERMIOS */ | |
c4ea52a6 | 5581 | |
ab5796a9 MB |
5582 | /* arch-tag: edb43589-4e09-4544-b325-978b5b121dcf |
5583 | (do not change this comment) */ |