Commit | Line | Data |
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1b94449f RS |
1 | /* MS-DOS specific C utilities. Coded by Morten Welinder 1993 |
2 | Copyright (C) 1993 Free Software Foundation, Inc. | |
3 | ||
4 | This file is part of GNU Emacs. | |
5 | ||
6 | GNU Emacs is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 1, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU Emacs is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU Emacs; see the file COPYING. If not, write to | |
18 | the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ | |
19 | ||
20 | /* Note: some of the stuff here was taken from end of sysdep.c in demacs. */ | |
21 | ||
48984716 | 22 | #include <config.h> |
1b94449f RS |
23 | |
24 | #ifdef MSDOS | |
25 | #include "lisp.h" | |
26 | #include <stdio.h> | |
27 | #include <stdlib.h> | |
28 | #include <sys/param.h> | |
29 | #include <sys/time.h> | |
30 | #include <dos.h> | |
31 | #include "dosfns.h" | |
32 | #include "msdos.h" | |
33 | #include "systime.h" | |
34 | #include "termhooks.h" | |
35 | #include "frame.h" | |
36 | #include <go32.h> | |
37 | #include <pc.h> | |
38 | #include <ctype.h> | |
39 | /* #include <process.h> */ | |
40 | /* Damn that local process.h! Instead we can define P_WAIT ourselves. */ | |
41 | #define P_WAIT 1 | |
42 | ||
43 | static int break_stat; /* BREAK check mode status. */ | |
44 | static int stdin_stat; /* stdin IOCTL status. */ | |
45 | static int extended_kbd; /* 101 (102) keyboard present. */ | |
46 | ||
47 | int have_mouse; /* Mouse present? */ | |
48 | static int mouse_last_x; | |
49 | static int mouse_last_y; | |
50 | ||
51 | /* Turn off Dos' Ctrl-C checking and inhibit interpretation of control chars | |
52 | by Dos. Determine the keyboard type. */ | |
53 | int | |
54 | dos_ttraw () | |
55 | { | |
56 | union REGS inregs, outregs; | |
57 | ||
58 | inregs.h.ah = 0xc0; | |
59 | int86 (0x15, &inregs, &outregs); | |
60 | extended_kbd = (!outregs.x.cflag) && (outregs.h.ah == 0); | |
61 | ||
62 | break_stat = getcbrk (); | |
63 | setcbrk (0); | |
64 | install_ctrl_break_check (); | |
49a09c76 | 65 | have_mouse = mouse_init1 (); |
1b94449f RS |
66 | |
67 | inregs.x.ax = 0x4400; /* Get IOCTL status. */ | |
68 | inregs.x.bx = 0x00; /* 0 = stdin. */ | |
69 | intdos (&inregs, &outregs); | |
70 | stdin_stat = outregs.h.dl; | |
71 | ||
72 | inregs.x.dx = (outregs.x.dx | 0x0020) & 0x0027; /* raw mode */ | |
73 | inregs.h.al = 0x01; | |
74 | intdos (&inregs, &outregs); | |
75 | return !outregs.x.cflag; | |
76 | } | |
77 | ||
78 | /* Restore status of standard input and Ctrl-C checking. */ | |
79 | int | |
80 | dos_ttcooked () | |
81 | { | |
82 | union REGS inregs, outregs; | |
83 | ||
84 | setcbrk (break_stat); | |
49a09c76 | 85 | if (have_mouse) mouse_off (); |
1b94449f RS |
86 | |
87 | inregs.x.ax = 0x4401; /* Set IOCTL status. */ | |
88 | inregs.x.bx = 0x00; /* 0 = stdin. */ | |
89 | inregs.x.dx = stdin_stat; | |
90 | intdos (&inregs, &outregs); | |
91 | return !outregs.x.cflag; | |
92 | } | |
93 | ||
94 | static unsigned short | |
95 | ibmpc_translate_map[] = | |
96 | { | |
97 | /* --------------- 00 to 0f --------------- */ | |
98 | 0, /* Ctrl Break */ | |
99 | 0xff1b, /* Escape */ | |
100 | 0xffb1, /* Keypad 1 */ | |
101 | 0xffb2, /* Keypad 2 */ | |
102 | 0xffb3, /* Keypad 3 */ | |
103 | 0xffb4, /* Keypad 4 */ | |
104 | 0xffb5, /* Keypad 5 */ | |
105 | 0xffb6, /* Keypad 6 */ | |
106 | 0xffb7, /* Keypad 7 */ | |
107 | 0xffb8, /* Keypad 8 */ | |
108 | 0xffb9, /* Keypad 9 */ | |
109 | 0xffb0, /* Keypad 0 */ | |
110 | '-', '=', | |
111 | 0xff08, /* Backspace */ | |
112 | 0xff74, /* (Shift) Tab [Tab doesn't use this table] */ | |
113 | ||
114 | /* --------------- 10 to 1f --------------- */ | |
115 | 'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', | |
116 | 0xff8d, /* Keypad Enter */ | |
117 | 0, /* Ctrl */ | |
118 | 'a', 's', | |
119 | ||
120 | /* --------------- 20 to 2f --------------- */ | |
121 | 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`', | |
122 | 0, /* Left shift */ | |
123 | '\\', 'z', 'x', 'c', 'v', | |
124 | ||
125 | /* --------------- 30 to 3f --------------- */ | |
126 | 'b', 'n', 'm', ',', '.', | |
127 | 0xffaf, /* Grey / */ | |
128 | 0, /* Right shift */ | |
129 | 0xffaa, /* Grey * */ | |
130 | 0, /* Alt */ | |
131 | ' ', | |
132 | 0, /* Caps Lock */ | |
133 | 0xffbe, /* F1 */ | |
134 | 0xffbf, /* F2 */ | |
135 | 0xffc0, /* F3 */ | |
136 | 0xffc1, /* F4 */ | |
137 | 0xffc2, /* F5 */ | |
138 | ||
139 | /* --------------- 40 to 4f --------------- */ | |
140 | 0xffc3, /* F6 */ | |
141 | 0xffc4, /* F7 */ | |
142 | 0xffc5, /* F8 */ | |
143 | 0xffc6, /* F9 */ | |
144 | 0xffc7, /* F10 */ | |
145 | 0, /* Num Lock */ | |
146 | 0, /* Scroll Lock */ | |
147 | 0xff50, /* Home */ | |
148 | 0xff52, /* Up */ | |
149 | 0xff55, /* Page Up */ | |
150 | 0xffad, /* Grey - */ | |
151 | 0xff51, /* Left */ | |
152 | 0xffb5, /* Keypad 5 */ | |
153 | 0xff53, /* Right */ | |
154 | 0xffab, /* Grey + */ | |
155 | 0xff57, /* End */ | |
156 | ||
157 | /* --------------- 50 to 5f --------------- */ | |
158 | 0xff54, /* Down */ | |
159 | 0xff56, /* Page Down */ | |
160 | 0xff63, /* Insert */ | |
161 | 0xffff, /* Delete */ | |
162 | 0xffbe, /* (Shift) F1 */ | |
163 | 0xffbf, /* (Shift) F2 */ | |
164 | 0xffc0, /* (Shift) F3 */ | |
165 | 0xffc1, /* (Shift) F4 */ | |
166 | 0xffc2, /* (Shift) F5 */ | |
167 | 0xffc3, /* (Shift) F6 */ | |
168 | 0xffc4, /* (Shift) F7 */ | |
169 | 0xffc5, /* (Shift) F8 */ | |
170 | 0xffc6, /* (Shift) F9 */ | |
171 | 0xffc7, /* (Shift) F10 */ | |
172 | 0xffbe, /* (Ctrl) F1 */ | |
173 | 0xffbf, /* (Ctrl) F2 */ | |
174 | ||
175 | /* --------------- 60 to 6f --------------- */ | |
176 | 0xffc0, /* (Ctrl) F3 */ | |
177 | 0xffc1, /* (Ctrl) F4 */ | |
178 | 0xffc2, /* (Ctrl) F5 */ | |
179 | 0xffc3, /* (Ctrl) F6 */ | |
180 | 0xffc4, /* (Ctrl) F7 */ | |
181 | 0xffc5, /* (Ctrl) F8 */ | |
182 | 0xffc6, /* (Ctrl) F9 */ | |
183 | 0xffc7, /* (Ctrl) F10 */ | |
184 | 0xffbe, /* (Alt) F1 */ | |
185 | 0xffbf, /* (Alt) F2 */ | |
186 | 0xffc0, /* (Alt) F3 */ | |
187 | 0xffc1, /* (Alt) F4 */ | |
188 | 0xffc2, /* (Alt) F5 */ | |
189 | 0xffc3, /* (Alt) F6 */ | |
190 | 0xffc4, /* (Alt) F7 */ | |
191 | 0xffc5, /* (Alt) F8 */ | |
192 | ||
193 | /* --------------- 70 to 7f --------------- */ | |
194 | 0xffc6, /* (Alt) F9 */ | |
195 | 0xffc7, /* (Alt) F10 */ | |
196 | 0xff6d, /* (Ctrl) Sys Rq */ | |
197 | 0xff51, /* (Ctrl) Left */ | |
198 | 0xff53, /* (Ctrl) Right */ | |
199 | 0xff57, /* (Ctrl) End */ | |
200 | 0xff56, /* (Ctrl) Page Down */ | |
201 | 0xff50, /* (Ctrl) Home */ | |
202 | '1', '2', '3', '4', '5', '6', '7', '8', /* (Alt) */ | |
203 | ||
204 | /* --------------- 80 to 8f --------------- */ | |
205 | '9', '0', '-', '=', /* (Alt) */ | |
206 | 0xff55, /* (Ctrl) Page Up */ | |
207 | 0xffc8, /* F11 */ | |
208 | 0xffc9, /* F12 */ | |
209 | 0xffc8, /* (Shift) F11 */ | |
210 | 0xffc9, /* (Shift) F12 */ | |
211 | 0xffc8, /* (Ctrl) F11 */ | |
212 | 0xffc9, /* (Ctrl) F12 */ | |
213 | 0xffc8, /* (Alt) F11 */ | |
214 | 0xffc9, /* (Alt) F12 */ | |
215 | 0xff52, /* (Ctrl) Up */ | |
216 | 0xffae, /* (Ctrl) Grey - */ | |
217 | 0xffb5, /* (Ctrl) Keypad 5 */ | |
218 | ||
219 | /* --------------- 90 to 9f --------------- */ | |
220 | 0xffab, /* (Ctrl) Grey + */ | |
221 | 0xff54, /* (Ctrl) Down */ | |
222 | 0xff63, /* (Ctrl) Insert */ | |
223 | 0xffff, /* (Ctrl) Delete */ | |
224 | 0xff09, /* (Ctrl) Tab */ | |
225 | 0xffaf, /* (Ctrl) Grey / */ | |
226 | 0xffaa, /* (Ctrl) Grey * */ | |
227 | 0xff50, /* (Alt) Home */ | |
228 | 0xff52, /* (Alt) Up */ | |
229 | 0xff55, /* (Alt) Page Up */ | |
230 | 0, /* NO KEY */ | |
231 | 0xff51, /* (Alt) Left */ | |
232 | 0, /* NO KEY */ | |
233 | 0xff53, /* (Alt) Right */ | |
234 | 0, /* NO KEY */ | |
235 | 0xff57, /* (Alt) End */ | |
236 | ||
237 | /* --------------- a0 to af --------------- */ | |
238 | 0xff54, /* (Alt) Down */ | |
239 | 0xff56, /* (Alt) Page Down */ | |
240 | 0xff63, /* (Alt) Insert */ | |
241 | 0xffff, /* (Alt) Delete */ | |
242 | 0xffaf, /* (Alt) Grey / */ | |
243 | 0xff09, /* (Alt) Tab */ | |
244 | 0xff0d /* (Alt) Enter */ | |
245 | }; | |
246 | ||
247 | /* Get a char from keyboard. Function keys are put into the event queue. */ | |
248 | static int | |
249 | dos_rawgetc () | |
250 | { | |
251 | struct input_event event; | |
252 | struct timeval tv; | |
253 | union REGS regs; | |
254 | int ctrl_p, alt_p, shift_p; | |
255 | ||
256 | /* Calculate modifier bits */ | |
257 | regs.h.ah = extended_kbd ? 0x12 : 0x02; | |
258 | int86 (0x16, ®s, ®s); | |
259 | ctrl_p = ((regs.h.al & 4) != 0); | |
260 | shift_p = ((regs.h.al & 3) != 0); | |
261 | alt_p = ((extended_kbd ? (regs.h.ah & 2) : (regs.h.al & 8)) != 0); | |
262 | ||
263 | while (kbhit ()) | |
264 | { | |
265 | union REGS regs; | |
266 | register unsigned char c; | |
267 | int sc, code; | |
268 | ||
269 | regs.h.ah = extended_kbd ? 0x10 : 0x00; | |
270 | int86 (0x16, ®s, ®s); | |
271 | c = regs.h.al; | |
272 | sc = regs.h.ah; | |
273 | ||
274 | /* Determine from the scan code if a keypad key was pressed. */ | |
275 | if (c >= '0' && c <= '9' && sc > 0xb) | |
276 | sc = (c == '0') ? 0xb : (c - '0' + 1), c = 0; | |
277 | else if (sc == 0xe0) | |
278 | { | |
279 | switch (c) | |
280 | { | |
281 | case 10: /* Ctrl Enter */ | |
282 | case 13: | |
283 | sc = 0x1c; | |
284 | break; | |
285 | case '.': /* Decimal point or decimal comma */ | |
286 | case ',': | |
287 | sc = 0x53; | |
288 | break; | |
289 | case '/': | |
290 | sc = 0x35; | |
291 | break; | |
292 | default: | |
293 | sc = 0; | |
294 | }; | |
295 | c = 0; | |
296 | } | |
297 | ||
298 | if (c == 0 | |
299 | || c == ' ' | |
300 | || alt_p | |
301 | || (ctrl_p && shift_p) | |
302 | || (c == 0xe0 && sc != 0) /* Pseudo-key */ | |
303 | || sc == 0x37 /* Grey * */ | |
304 | || sc == 0x4a /* Grey - */ | |
305 | || sc == 0x4e /* Grey + */ | |
306 | || sc == 0x0e) /* Back space *key*, not Ctrl-h */ | |
307 | { | |
308 | if (sc >= (sizeof (ibmpc_translate_map) / sizeof (short))) | |
309 | code = 0; | |
310 | else | |
311 | code = ibmpc_translate_map[sc]; | |
312 | if (code != 0) | |
313 | { | |
314 | if (code >= 0x100) | |
315 | { | |
316 | event.kind = non_ascii_keystroke; | |
49a09c76 | 317 | event.code = (code & 0xff) + 0xff00; |
1b94449f RS |
318 | } |
319 | else | |
320 | { | |
321 | /* Don't return S- if we don't have to. */ | |
322 | if (code >= 'a' && code <= 'z') | |
323 | { | |
324 | c = shift_p ? toupper (code) : code; | |
325 | shift_p = 0; | |
326 | } | |
327 | else | |
328 | if (c == 0) c = code; | |
329 | event.kind = ascii_keystroke; | |
330 | event.code = c; | |
331 | } | |
332 | event.modifiers | |
49a09c76 RS |
333 | = (shift_p ? shift_modifier : 0 |
334 | + (ctrl_p ? ctrl_modifier : 0 | |
335 | + (alt_p ? meta_modifier : 0))); | |
1b94449f RS |
336 | /* EMACS == Enter Meta Alt Control Shift */ |
337 | event.frame_or_window = selected_frame; | |
338 | gettimeofday (&tv, NULL); | |
339 | event.timestamp = tv.tv_usec; | |
340 | kbd_buffer_store_event (&event); | |
341 | } | |
342 | } else | |
343 | return c; | |
344 | } | |
345 | ||
346 | if (have_mouse) | |
347 | { | |
348 | int but, press, x, y, ok; | |
349 | ||
350 | /* Check for mouse movement *before* buttons. */ | |
49a09c76 | 351 | mouse_check_moved (); |
1b94449f RS |
352 | |
353 | for (but = 0; but < NUM_MOUSE_BUTTONS; but++) | |
354 | for (press = 0; press < 2; press++) | |
355 | { | |
356 | if (press) | |
49a09c76 | 357 | ok = mouse_pressed (but, &x, &y); |
1b94449f | 358 | else |
49a09c76 | 359 | ok = mouse_released (but, &x, &y); |
1b94449f RS |
360 | if (ok) |
361 | { | |
362 | event.kind = mouse_click; | |
363 | event.code = but; | |
364 | event.modifiers | |
49a09c76 RS |
365 | = (shift_p ? shift_modifier : 0 |
366 | + (ctrl_p ? ctrl_modifier : 0 | |
367 | + (alt_p ? meta_modifier : 0 | |
368 | + (press ? down_modifier : up_modifier)))); | |
1b94449f RS |
369 | event.x = x; |
370 | event.y = y; | |
371 | event.frame_or_window = selected_frame; | |
372 | gettimeofday (&tv, NULL); | |
373 | event.timestamp = tv.tv_usec; | |
374 | kbd_buffer_store_event (&event); | |
375 | } | |
376 | } | |
377 | } | |
378 | ||
379 | return -1; | |
380 | } | |
381 | ||
382 | static int prev_get_char = -1; | |
383 | ||
384 | /* Return 1 if a key is ready to be read without suspending execution. */ | |
385 | dos_keysns () | |
386 | { | |
387 | if (prev_get_char != -1) | |
388 | return 1; | |
389 | else | |
390 | return ((prev_get_char = dos_rawgetc ()) != -1); | |
391 | } | |
392 | ||
393 | /* Read a key. Return -1 if no key is ready. */ | |
394 | dos_keyread () | |
395 | { | |
396 | if (prev_get_char != -1) | |
397 | { | |
398 | int c = prev_get_char; | |
399 | prev_get_char = -1; | |
400 | return c; | |
401 | } | |
402 | else | |
403 | return dos_rawgetc (); | |
404 | } | |
405 | ||
406 | /* Hostnames for a pc are not really funny, but they are used in change log | |
407 | so we emulate the best we can. */ | |
408 | gethostname (p, size) | |
409 | char *p; | |
410 | int size; | |
411 | { | |
412 | char *q = egetenv ("HOSTNAME"); | |
413 | ||
414 | if (!q) q = "pc"; | |
415 | strcpy (p, q); | |
416 | return 0; | |
417 | } | |
418 | ||
419 | /* Destructively turn backslashes into slashes. */ | |
420 | void | |
421 | dostounix_filename (p) | |
422 | register char *p; | |
423 | { | |
424 | while (*p) | |
425 | { | |
426 | if (*p == '\\') | |
427 | *p = '/'; | |
428 | p++; | |
429 | } | |
430 | } | |
431 | ||
432 | /* Destructively turn slashes into backslashes. */ | |
433 | void | |
434 | unixtodos_filename (p) | |
435 | register char *p; | |
436 | { | |
437 | while (*p) | |
438 | { | |
439 | if (*p == '/') | |
440 | *p = '\\'; | |
441 | p++; | |
442 | } | |
443 | } | |
444 | ||
445 | /* Get the default directory for a given drive. 0=def, 1=A, 2=B, ... */ | |
446 | int | |
447 | getdefdir (drive, dst) | |
448 | int drive; | |
449 | char *dst; | |
450 | { | |
451 | union REGS regs; | |
452 | ||
453 | *dst++ = '/'; | |
454 | regs.h.dl = drive; | |
455 | regs.x.si = (int) dst; | |
456 | regs.h.ah = 0x47; | |
457 | intdos (®s, ®s); | |
458 | return !regs.x.cflag; | |
459 | } | |
460 | ||
461 | /* Remove all CR's that are followed by a LF. */ | |
462 | int | |
463 | crlf_to_lf (n, buf) | |
464 | register int n; | |
465 | register unsigned char *buf; | |
466 | { | |
467 | unsigned char *np = buf; | |
468 | unsigned char *startp = buf; | |
469 | unsigned char *endp = buf + n; | |
470 | unsigned char c; | |
471 | ||
472 | if (n == 0) | |
473 | return n; | |
3d4ad6e0 | 474 | while (buf < endp - 1) |
1b94449f RS |
475 | { |
476 | if (*buf == 0x0d) | |
477 | { | |
478 | if (*(++buf) != 0x0a) | |
479 | *np++ = 0x0d; | |
480 | } | |
481 | else | |
482 | *np++ = *buf++; | |
483 | } | |
3d4ad6e0 RS |
484 | if (buf < endp) |
485 | *np++ = *buf++; | |
1b94449f RS |
486 | return np - startp; |
487 | } | |
488 | ||
489 | ||
490 | /* Run command as specified by ARGV in directory DIR. | |
491 | The command is run with input from TEMPIN and output to file TEMPOUT. */ | |
492 | int | |
493 | run_msdos_command (argv, dir, tempin, tempout) | |
494 | unsigned char **argv; | |
495 | Lisp_Object dir; | |
496 | int tempin, tempout; | |
497 | { | |
498 | char *saveargv1, *saveargv2, **envv; | |
499 | char oldwd[MAXPATHLEN + 1]; /* Fixed size is safe on MSDOS. */ | |
500 | int msshell, result = -1; | |
501 | int in, out, inbak, outbak, errbak; | |
502 | Lisp_Object cmd; | |
503 | ||
504 | /* Get current directory as MSDOS cwd is not per-process. */ | |
505 | getwd (oldwd); | |
506 | ||
507 | cmd = Ffile_name_nondirectory (build_string (argv[0])); | |
508 | msshell = !NILP (Fmember (cmd, Fsymbol_value (intern ("msdos-shells")))) | |
509 | && !strcmp ("-c", argv[1]); | |
510 | if (msshell) | |
511 | { | |
512 | saveargv1 = argv[1]; | |
513 | argv[1] = "/c"; | |
514 | if (argv[2]) | |
515 | { | |
516 | saveargv2 = argv[2]; | |
517 | unixtodos_filename (argv[2] = strdup (argv[2])); | |
518 | } | |
519 | } | |
520 | ||
521 | /* Build the environment array. */ | |
522 | { | |
523 | extern Lisp_Object Vprocess_environment; | |
091d0bdf KH |
524 | Lisp_Object tmp, lst; |
525 | int i, len; | |
526 | ||
527 | lst = Vprocess_environment; | |
528 | len = XFASTINT (Flength (lst)); | |
1b94449f RS |
529 | |
530 | envv = alloca ((len + 1) * sizeof (char *)); | |
531 | for (i = 0; i < len; i++) | |
532 | { | |
533 | tmp = Fcar (lst); | |
534 | lst = Fcdr (lst); | |
535 | CHECK_STRING (tmp, 0); | |
536 | envv[i] = alloca (XSTRING (tmp)->size + 1); | |
537 | strcpy (envv[i], XSTRING (tmp)->data); | |
538 | } | |
539 | envv[len] = (char *) 0; | |
540 | } | |
541 | ||
542 | if (XTYPE (dir) == Lisp_String) | |
543 | chdir (XSTRING (dir)->data); | |
544 | inbak = dup (0); | |
545 | outbak = dup (1); | |
546 | errbak = dup (2); | |
547 | if (inbak < 0 || outbak < 0 || errbak < 0) | |
548 | goto done; /* Allocation might fail due to lack of descriptors. */ | |
549 | dup2 (tempin, 0); | |
550 | dup2 (tempout, 1); | |
551 | dup2 (tempout, 2); | |
552 | dos_ttcooked (); | |
553 | result = spawnve (P_WAIT, argv[0], argv, envv); | |
554 | dos_ttraw (); | |
555 | dup2 (inbak, 0); | |
556 | dup2 (outbak, 1); | |
557 | dup2 (errbak, 2); | |
558 | ||
559 | done: | |
560 | chdir (oldwd); | |
561 | if (msshell) | |
562 | { | |
563 | argv[1] = saveargv1; | |
564 | if (argv[2]) | |
565 | { | |
566 | free (argv[2]); | |
567 | argv[2] = saveargv2; | |
568 | } | |
569 | } | |
570 | return result; | |
571 | } | |
572 | ||
573 | ||
574 | croak (badfunc) | |
575 | char *badfunc; | |
576 | { | |
577 | fprintf (stderr, "%s not yet implemented\r\n", badfunc); | |
578 | reset_sys_modes (); | |
579 | exit (1); | |
580 | } | |
581 | ||
582 | /* A list of unimplemented functions that we silently ignore. */ | |
583 | unsigned alarm (s) unsigned s; {} | |
584 | fork () { return 0; } | |
585 | int kill (x, y) int x, y; { return -1; } | |
586 | nice (p) int p; {} | |
587 | void volatile pause () {} | |
588 | request_sigio () {} | |
589 | setpgrp () {return 0; } | |
590 | setpriority (x,y,z) int x,y,z; { return 0; } | |
591 | sigsetmask (x) int x; { return 0; } | |
592 | unrequest_sigio () {} | |
593 | ||
594 | #ifdef chdir | |
595 | #undef chdir | |
596 | #endif | |
597 | ||
598 | int | |
599 | sys_chdir (path) | |
600 | const char* path; | |
601 | { | |
602 | int len = strlen (path); | |
603 | char *tmp = (char *) alloca (len + 1); | |
604 | /* Gotta do this extern here due to the corresponding #define: */ | |
605 | extern int chdir (); | |
606 | ||
607 | if (*path && path[1] == ':' && (getdisk () != tolower (path[0]) - 'a')) | |
608 | setdisk (tolower (path[0]) - 'a'); | |
609 | ||
610 | strcpy (tmp, path); | |
611 | if (strcmp (path, "/") && strcmp (path + 1, ":/") && (path[len - 1] == '/')) | |
612 | tmp[len - 1] = 0; | |
613 | return chdir (tmp); | |
614 | } | |
615 | ||
616 | /* Sleep SECS. If KBDOK also return immediately if a key is pressed. */ | |
617 | void | |
618 | sleep_or_kbd_hit (secs, kbdok) | |
619 | int secs, kbdok; | |
620 | { | |
621 | long clnow, clthen; | |
622 | struct timeval t; | |
623 | ||
624 | gettimeofday (&t, NULL); | |
625 | clnow = t.tv_sec * 100 + t.tv_usec / 10000; | |
626 | clthen = clnow + (100 * secs); | |
627 | ||
628 | do | |
629 | { | |
630 | gettimeofday (&t, NULL); | |
631 | clnow = t.tv_sec * 100 + t.tv_usec / 10000; | |
632 | if (kbdok && detect_input_pending ()) | |
633 | return; | |
634 | } | |
635 | while (clnow < clthen); | |
636 | } | |
637 | ||
638 | /* Define a lot of environment variables if not already defined. Don't | |
639 | remove anything unless you know what you're doing -- lots of code will | |
640 | break if one or more of these are missing. */ | |
641 | void | |
642 | init_environment (argc, argv, skip_args) | |
643 | int argc; | |
644 | char **argv; | |
645 | int skip_args; | |
646 | { | |
647 | char *s, *t; | |
648 | ||
649 | /* We default HOME to the directory from which Emacs was started, but with | |
650 | a "/bin" suffix removed. */ | |
651 | s = argv[0]; | |
652 | t = alloca (strlen (s) + 1); | |
653 | strcpy (t, s); | |
654 | s = t + strlen (t); | |
655 | while (s != t && *s != '/' && *s != ':') s--; | |
656 | if (s == t) | |
657 | t = "c:/emacs"; /* When run under debug32. */ | |
658 | else | |
659 | { | |
660 | if (*s == ':') s++; | |
661 | *s = 0; | |
662 | if (s - 4 >= t && strcmp (s - 4, "/bin") == 0) | |
663 | s[strlen (s) - 4] = 0; | |
664 | } | |
665 | setenv ("HOME", t, 0); | |
666 | ||
667 | /* We set EMACSPATH to ~/bin (expanded) */ | |
668 | s = getenv ("HOME"); | |
669 | t = strcpy (alloca (strlen (s) + 6), s); | |
670 | if (s[strlen (s) - 1] != '/') strcat (t, "/"); | |
671 | strcat (t, "bin"); | |
672 | setenv ("EMACSPATH", t, 0); | |
673 | ||
674 | /* I don't expect anybody to ever use other terminals so the internal | |
675 | terminal is the default. */ | |
676 | setenv ("TERM", "internal", 0); | |
677 | ||
678 | /* SHELL is a bit tricky -- COMSPEC is the closest we come, but we must | |
679 | downcase it and mirror the backslashes. */ | |
680 | s = getenv ("COMSPEC"); | |
681 | if (!s) s = "c:/command.com"; | |
682 | t = alloca (strlen (s) + 1); | |
683 | strcpy (t, s); | |
684 | strlwr (t); | |
685 | dostounix_filename (t); | |
686 | setenv ("SHELL", t, 0); | |
687 | ||
688 | /* PATH is also downcased and backslashes mirrored. */ | |
689 | s = getenv ("PATH"); | |
690 | if (!s) s = ""; | |
691 | t = alloca (strlen (s) + 3); | |
692 | /* Current directory is always considered part of MsDos's path but it is | |
693 | not normally mentioned. Now it is. */ | |
694 | strcat (strcpy (t, ".;"), s); | |
695 | strlwr (t); | |
696 | dostounix_filename (t); /* Not a single file name, but this should work. */ | |
697 | setenv ("PATH", t, 1); | |
698 | ||
699 | /* In some sense all dos users have root privileges, so... */ | |
700 | setenv ("USER", "root", 0); | |
701 | setenv ("NAME", getenv ("USER"), 0); | |
702 | ||
703 | /* Time zone determined from country code. To make this possible, the | |
704 | country code may not span more than one time zone. In other words, | |
705 | in the USA, you lose. */ | |
706 | switch (dos_country_code) | |
707 | { | |
708 | case 31: /* Belgium */ | |
709 | case 32: /* The Netherlands */ | |
710 | case 33: /* France */ | |
711 | case 34: /* Spain */ | |
712 | case 36: /* Hungary */ | |
713 | case 38: /* Yugoslavia (or what's left of it?) */ | |
714 | case 39: /* Italy */ | |
715 | case 41: /* Switzerland */ | |
716 | case 42: /* Tjekia */ | |
717 | case 45: /* Denmark */ | |
718 | case 46: /* Sweden */ | |
719 | case 47: /* Norway */ | |
720 | case 48: /* Poland */ | |
721 | case 49: /* Germany */ | |
722 | /* Daylight saving from last Sunday in March to last Sunday in | |
723 | September, both at 2AM. */ | |
724 | setenv ("TZ", "MET-01METDST-02,M3.5.0/02:00,M9.5.0/02:00", 0); | |
725 | break; | |
726 | case 44: /* United Kingdom */ | |
727 | case 351: /* Portugal */ | |
728 | case 354: /* Iceland */ | |
729 | setenv ("TZ", "GMT+00", 0); | |
730 | break; | |
731 | case 81: /* Japan */ | |
732 | case 82: /* Korea */ | |
733 | setenv ("TZ", "???-09", 0); | |
734 | break; | |
735 | case 90: /* Turkey */ | |
736 | case 358: /* Finland */ | |
737 | case 972: /* Israel */ | |
738 | setenv ("TZ", "EET-02", 0); | |
739 | break; | |
740 | } | |
741 | tzset (); | |
b278e52a | 742 | init_gettimeofday (); |
1b94449f RS |
743 | } |
744 | ||
745 | /* Flash the screen as a substitute for BEEPs. */ | |
746 | ||
747 | static unsigned char _xorattr; | |
748 | ||
49a09c76 | 749 | static void |
1b94449f RS |
750 | visible_bell (xorattr) |
751 | unsigned char xorattr; | |
752 | { | |
753 | _xorattr = xorattr; | |
49a09c76 RS |
754 | asm volatile |
755 | (" pushl %eax | |
756 | pushl %ebx | |
757 | pushl %ecx | |
758 | pushl %edx | |
759 | movl $1,%edx | |
1b94449f | 760 | visible_bell_0: |
49a09c76 RS |
761 | call _ScreenRows |
762 | pushl %eax | |
763 | call _ScreenCols | |
764 | pushl %eax | |
765 | movl _ScreenPrimary,%eax | |
766 | call dosmemsetup | |
767 | movl %eax,%ebx | |
768 | popl %ecx | |
769 | popl %eax | |
770 | imull %eax,%ecx | |
771 | movb (__xorattr),%al | |
772 | incl %ebx | |
1b94449f | 773 | visible_bell_1: |
49a09c76 RS |
774 | xorb %al,%gs:(%ebx) |
775 | addl $2,%ebx | |
776 | decl %ecx | |
777 | jne visible_bell_1 | |
778 | decl %edx | |
779 | jne visible_bell_3 | |
1b94449f | 780 | visible_bell_2: |
49a09c76 RS |
781 | movzwl %ax,%eax |
782 | movzwl %ax,%eax | |
783 | movzwl %ax,%eax | |
784 | movzwl %ax,%eax | |
785 | decw %cx | |
786 | jne visible_bell_2 | |
787 | jmp visible_bell_0 | |
1b94449f | 788 | visible_bell_3: |
49a09c76 RS |
789 | popl %edx |
790 | popl %ecx | |
791 | popl %ebx | |
792 | popl %eax"); | |
1b94449f RS |
793 | } |
794 | ||
795 | static int internal_terminal = 0; | |
796 | #undef fflush | |
797 | ||
798 | int | |
799 | internal_flush (f) | |
800 | FILE *f; | |
801 | { | |
802 | static int x; | |
803 | static int y; | |
804 | char c, *cp; | |
805 | int count, i; | |
806 | ||
807 | if (internal_terminal && f == stdout) | |
808 | { | |
49a09c76 | 809 | if (have_mouse) mouse_off (); |
1b94449f RS |
810 | cp = stdout->_base; |
811 | count = stdout->_ptr - stdout->_base; | |
812 | while (count > 0) | |
813 | { | |
814 | switch (c = *cp++) | |
815 | { | |
816 | case 27: | |
817 | switch (*cp++) | |
818 | { | |
819 | case '@': | |
820 | y = *cp++; | |
821 | x = *cp++; | |
822 | count -= 4; | |
823 | break; | |
824 | case 'A': | |
825 | ScreenAttrib = *cp++; | |
826 | count -= 3; | |
827 | break; | |
828 | case 'B': | |
829 | visible_bell (*cp++); | |
830 | count -= 3; | |
831 | break; | |
832 | case 'C': | |
833 | ScreenClear (); | |
834 | x = y = 0; | |
835 | count -= 2; | |
836 | break; | |
837 | case 'E': | |
838 | for (i = ScreenCols () - 1; i >= x; i--) | |
839 | ScreenPutChar (' ', ScreenAttrib, i, y); | |
840 | count -= 2; | |
841 | break; | |
842 | case 'R': | |
843 | x++; | |
844 | count -= 2; | |
845 | break; | |
846 | case 'U': | |
847 | y--; | |
848 | count -= 2; | |
849 | break; | |
850 | case 'X': | |
851 | ScreenAttrib ^= *cp++; | |
852 | count -= 3; | |
853 | break; | |
854 | default: | |
855 | count -= 2; | |
856 | } | |
857 | break; | |
858 | case 8: | |
859 | x--; | |
860 | count--; | |
861 | break; | |
862 | case 13: | |
863 | x = 0; | |
864 | count--; | |
865 | break; | |
866 | case 10: | |
867 | y++; | |
868 | count--; | |
869 | break; | |
870 | default: | |
871 | ScreenPutChar (c, ScreenAttrib, x++, y); | |
872 | count--; | |
873 | } | |
874 | } | |
875 | fpurge (stdout); | |
876 | ScreenSetCursor (y, x); | |
49a09c76 | 877 | if (have_mouse) mouse_on (); |
1b94449f RS |
878 | } |
879 | else | |
880 | /* This is a call to the original fflush. */ | |
881 | fflush (f); | |
882 | } | |
883 | ||
884 | /* Do we need the internal terminal? */ | |
885 | void | |
886 | internal_terminal_init () | |
887 | { | |
888 | char *term = getenv ("TERM"); | |
889 | ||
890 | internal_terminal | |
891 | = (!noninteractive) && term && !strcmp (term, "internal"); | |
892 | } | |
b278e52a RS |
893 | \f |
894 | /* When time zones are set from Ms-Dos too may C-libraries are playing | |
895 | tricks with time values. We solve this by defining our own version | |
896 | of `gettimeofday' bypassing GO32. Our version needs to be initialized | |
897 | once and after each call to `tzset' with TZ changed. */ | |
1b94449f | 898 | |
b278e52a RS |
899 | static int daylight, gmtoffset; |
900 | ||
901 | int | |
902 | gettimeofday (struct timeval *tp, struct timezone *tzp) | |
903 | { | |
904 | if (tp) | |
905 | { | |
906 | struct time t; | |
907 | struct date d; | |
908 | struct tm tmrec; | |
909 | ||
910 | gettime (&t); | |
911 | getdate (&d); | |
912 | tmrec.tm_year = d.da_year - 1900; | |
913 | tmrec.tm_mon = d.da_mon - 1; | |
914 | tmrec.tm_mday = d.da_day; | |
915 | tmrec.tm_hour = t.ti_hour; | |
916 | tmrec.tm_min = t.ti_min; | |
917 | tmrec.tm_sec = t.ti_sec; | |
918 | tmrec.tm_gmtoff = gmtoffset; | |
919 | tmrec.tm_isdst = daylight; | |
920 | tp->tv_sec = mktime (&tmrec); | |
921 | tp->tv_usec = t.ti_hund * (1000000 / 100); | |
922 | } | |
923 | if (tzp) | |
924 | { | |
925 | tzp->tz_minuteswest = gmtoffset; | |
926 | tzp->tz_dsttime = daylight; | |
927 | } | |
928 | return 0; | |
929 | } | |
930 | ||
931 | void | |
932 | init_gettimeofday () | |
933 | { | |
934 | time_t ltm, gtm; | |
935 | struct tm *lstm; | |
936 | ||
937 | daylight = 0; | |
938 | gmtoffset = 0; | |
939 | ltm = gtm = time (NULL); | |
940 | ltm = mktime (lstm = localtime (<m)); | |
941 | gtm = mktime (gmtime (>m)); | |
942 | daylight = lstm->tm_isdst; | |
943 | gmtoffset = (int)(gtm - ltm) / 60; | |
944 | } | |
945 | \f | |
1b94449f RS |
946 | /* These must be global. */ |
947 | static _go32_dpmi_seginfo ctrl_break_vector; | |
948 | static _go32_dpmi_registers ctrl_break_regs; | |
949 | static int ctrlbreakinstalled = 0; | |
950 | ||
951 | /* Interrupt level detection of Ctrl-Break. Don't do anything fancy here! */ | |
952 | void | |
953 | ctrl_break_func (regs) | |
954 | _go32_dpmi_registers *regs; | |
955 | { | |
956 | Vquit_flag = Qt; | |
957 | } | |
958 | ||
959 | void | |
960 | install_ctrl_break_check () | |
961 | { | |
962 | if (!ctrlbreakinstalled) | |
963 | { | |
964 | /* Don't press Ctrl-Break if you don't have either DPMI or Emacs | |
965 | was compiler with Djgpp 1.11 maintenance level 2 or later! */ | |
966 | ctrlbreakinstalled = 1; | |
967 | ctrl_break_vector.pm_offset = (int) ctrl_break_func; | |
968 | _go32_dpmi_allocate_real_mode_callback_iret (&ctrl_break_vector, | |
969 | &ctrl_break_regs); | |
970 | _go32_dpmi_set_real_mode_interrupt_vector (0x1b, &ctrl_break_vector); | |
971 | } | |
972 | } | |
973 | \f | |
974 | ||
975 | /* Mouse routines under devellopment follow. Coordinates are in screen | |
976 | positions and zero based. Mouse buttons are numbered from left to | |
977 | right and also zero based. */ | |
978 | ||
979 | static int mouse_button_translate[NUM_MOUSE_BUTTONS]; | |
980 | static int mouse_button_count; | |
981 | ||
982 | void | |
983 | mouse_init () | |
984 | { | |
985 | union REGS regs; | |
986 | ||
987 | regs.x.ax = 0x0007; | |
988 | regs.x.cx = 0; | |
989 | regs.x.dx = 8 * (ScreenCols () - 1); | |
990 | int86 (0x33, ®s, ®s); | |
991 | ||
992 | regs.x.ax = 0x0008; | |
993 | regs.x.cx = 0; | |
994 | regs.x.dx = 8 * (ScreenRows () - 1); | |
995 | int86 (0x33, ®s, ®s); | |
996 | ||
997 | mouse_moveto (ScreenCols () - 1, ScreenRows () - 1); | |
998 | mouse_on (); | |
999 | } | |
1000 | ||
1001 | void | |
1002 | mouse_on () | |
1003 | { | |
1004 | union REGS regs; | |
1005 | ||
1006 | regs.x.ax = 0x0001; | |
1007 | int86 (0x33, ®s, ®s); | |
1008 | } | |
1009 | ||
1010 | void | |
1011 | mouse_off () | |
1012 | { | |
1013 | union REGS regs; | |
1014 | ||
1015 | regs.x.ax = 0x0002; | |
1016 | int86 (0x33, ®s, ®s); | |
1017 | } | |
1018 | ||
1019 | void | |
1020 | mouse_moveto (x, y) | |
1021 | int x, y; | |
1022 | { | |
1023 | union REGS regs; | |
1024 | ||
1025 | regs.x.ax = 0x0004; | |
1026 | mouse_last_x = regs.x.cx = x * 8; | |
1027 | mouse_last_y = regs.x.dx = y * 8; | |
1028 | int86 (0x33, ®s, ®s); | |
1029 | } | |
1030 | ||
1031 | int | |
1032 | mouse_pressed (b, xp, yp) | |
1033 | int b, *xp, *yp; | |
1034 | { | |
1035 | union REGS regs; | |
1036 | ||
1037 | if (b >= mouse_button_count) | |
1038 | return 0; | |
1039 | regs.x.ax = 0x0005; | |
1040 | regs.x.bx = mouse_button_translate[b]; | |
1041 | int86 (0x33, ®s, ®s); | |
1042 | if (regs.x.bx) | |
1043 | *xp = regs.x.cx / 8, *yp = regs.x.dx /8; | |
1044 | return (regs.x.bx != 0); | |
1045 | } | |
1046 | ||
1047 | int | |
1048 | mouse_released (b, xp, yp) | |
1049 | int b, *xp, *yp; | |
1050 | { | |
1051 | union REGS regs; | |
1052 | ||
1053 | if (b >= mouse_button_count) | |
1054 | return 0; | |
1055 | regs.x.ax = 0x0006; | |
1056 | regs.x.bx = mouse_button_translate[b]; | |
1057 | int86 (0x33, ®s, ®s); | |
1058 | if (regs.x.bx) | |
1059 | *xp = regs.x.cx / 8, *yp = regs.x.dx / 8; | |
1060 | return (regs.x.bx != 0); | |
1061 | } | |
1062 | ||
1063 | void | |
1064 | mouse_get_pos (f, bar_window, part, x, y, time) | |
1065 | FRAME_PTR *f; | |
1066 | Lisp_Object *bar_window, *x, *y; | |
1067 | enum scroll_bar_part *part; | |
1068 | unsigned long *time; | |
1069 | { | |
1070 | union REGS regs; | |
1071 | struct timeval tv; | |
1072 | ||
1073 | regs.x.ax = 0x0003; | |
1074 | int86 (0x33, ®s, ®s); | |
1075 | *f = selected_frame; | |
1076 | *bar_window = Qnil; | |
1077 | gettimeofday (&tv, NULL); | |
411acee3 RS |
1078 | *x = make_number (regs.x.cx); |
1079 | *y = make_number (regs.x.dx); | |
1b94449f RS |
1080 | *time = tv.tv_usec; |
1081 | mouse_moved = 0; | |
1082 | } | |
1083 | ||
1084 | void | |
1085 | mouse_check_moved () | |
1086 | { | |
1087 | union REGS regs; | |
1088 | ||
1089 | regs.x.ax = 0x0003; | |
1090 | int86 (0x33, ®s, ®s); | |
1091 | if (regs.x.cx != mouse_last_x || regs.x.dx != mouse_last_y) | |
1092 | { | |
1093 | mouse_moved = 1; | |
1094 | mouse_last_x = regs.x.cx; | |
1095 | mouse_last_y = regs.x.dx; | |
1096 | } | |
1097 | } | |
1098 | ||
1099 | int | |
1100 | mouse_init1 () | |
1101 | { | |
1102 | union REGS regs; | |
1103 | int present; | |
1104 | ||
1105 | regs.x.ax = 0x0021; | |
1106 | int86 (0x33, ®s, ®s); | |
1107 | present = internal_terminal && (regs.x.ax & 0xffff) == 0xffff; | |
1108 | if (present) | |
1109 | { | |
1110 | if (regs.x.bx == 3) | |
1111 | { | |
1112 | mouse_button_count = 3; | |
1113 | mouse_button_translate[0] = 0; /* Left */ | |
1114 | mouse_button_translate[1] = 2; /* Middle */ | |
1115 | mouse_button_translate[2] = 1; /* Right */ | |
1116 | } | |
1117 | else | |
1118 | { | |
1119 | mouse_button_count = 2; | |
1120 | mouse_button_translate[0] = 0; | |
1121 | mouse_button_translate[1] = 1; | |
1122 | } | |
1123 | mouse_position_hook = &mouse_get_pos; | |
1124 | mouse_init (); | |
1125 | } | |
1126 | return present; | |
1127 | } | |
1128 | ||
49a09c76 RS |
1129 | /* See xterm.c for more info. */ |
1130 | void | |
1131 | pixel_to_glyph_coords (f, pix_x, pix_y, x, y, bounds, noclip) | |
1132 | FRAME_PTR f; | |
1133 | register int pix_x, pix_y; | |
1134 | register int *x, *y; | |
1135 | void /* XRectangle */ *bounds; | |
1136 | int noclip; | |
1137 | { | |
1138 | if (bounds) abort (); | |
1139 | ||
1140 | /* Ignore clipping. */ | |
1141 | ||
1142 | *x = pix_x; | |
1143 | *y = pix_y; | |
1144 | } | |
1145 | ||
1146 | void | |
1147 | glyph_to_pixel_coords (f, x, y, pix_x, pix_y) | |
1148 | FRAME_PTR f; | |
1149 | register int x, y; | |
1150 | register int *pix_x, *pix_y; | |
1151 | { | |
1152 | *pix_x = x; | |
1153 | *pix_y = y; | |
1154 | } | |
1155 | ||
1b94449f | 1156 | #endif /* MSDOS */ |