Commit | Line | Data |
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1b94449f RS |
1 | /* MS-DOS specific Lisp utilities. Coded by Manabu Higashida, 1991. |
2 | Major changes May-July 1993 Morten Welinder (only 10% original code left) | |
0b5538bd | 3 | Copyright (C) 1991, 1993, 1996, 1997, 1998, 2001, 2002, 2003, 2004, |
114f9c96 | 4 | 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc. |
1b94449f RS |
5 | |
6 | This file is part of GNU Emacs. | |
7 | ||
9ec0b715 | 8 | GNU Emacs is free software: you can redistribute it and/or modify |
1b94449f | 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. | |
1b94449f RS |
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/>. */ |
1b94449f | 20 | |
48984716 | 21 | #include <config.h> |
1b94449f RS |
22 | |
23 | #ifdef MSDOS | |
24 | /* The entire file is within this conditional */ | |
25 | ||
26 | #include <stdio.h> | |
27 | #include <dos.h> | |
d7306fe6 | 28 | #include <setjmp.h> |
1b94449f RS |
29 | #include "lisp.h" |
30 | #include "buffer.h" | |
31 | #include "termchar.h" | |
1b94449f | 32 | #include "frame.h" |
c06981c0 | 33 | #include "termhooks.h" |
838a94b8 EZ |
34 | #include "blockinput.h" |
35 | #include "window.h" | |
1b94449f RS |
36 | #include "dosfns.h" |
37 | #include "msdos.h" | |
e4441df0 | 38 | #include "dispextern.h" |
83be827a | 39 | #include "character.h" |
76a76a57 | 40 | #include "coding.h" |
e5c9f94c | 41 | #include "process.h" |
838a94b8 | 42 | #include <dpmi.h> |
5f08dc78 | 43 | #include <go32.h> |
50666766 | 44 | #include <dirent.h> |
76a76a57 | 45 | #include <sys/vfs.h> |
e5c9f94c EZ |
46 | #include <unistd.h> |
47 | #include <grp.h> | |
48 | #include <crt0.h> | |
1b94449f | 49 | |
1b94449f | 50 | DEFUN ("int86", Fint86, Sint86, 2, 2, 0, |
8fc29035 | 51 | doc: /* Call specific MS-DOS interrupt number INTERRUPT with REGISTERS. |
7363986a PJ |
52 | Return the updated REGISTER vector. |
53 | ||
54 | INTERRUPT should be an integer in the range 0 to 255. | |
55 | REGISTERS should be a vector produced by `make-register' and | |
56 | `set-register-value'. */) | |
5842a27b | 57 | (Lisp_Object interrupt, Lisp_Object registers) |
1b94449f RS |
58 | { |
59 | register int i; | |
60 | int no; | |
61 | union REGS inregs, outregs; | |
1b94449f | 62 | |
b7826503 | 63 | CHECK_NUMBER (interrupt); |
e20104ba | 64 | no = (unsigned long) XINT (interrupt); |
b7826503 | 65 | CHECK_VECTOR (registers); |
b058cb36 | 66 | if (no < 0 || no > 0xff || XVECTOR (registers)-> size != 8) |
1b94449f RS |
67 | return Qnil; |
68 | for (i = 0; i < 8; i++) | |
b7826503 | 69 | CHECK_NUMBER (XVECTOR (registers)->contents[i]); |
1b94449f | 70 | |
e20104ba EN |
71 | inregs.x.ax = (unsigned long) XFASTINT (XVECTOR (registers)->contents[0]); |
72 | inregs.x.bx = (unsigned long) XFASTINT (XVECTOR (registers)->contents[1]); | |
73 | inregs.x.cx = (unsigned long) XFASTINT (XVECTOR (registers)->contents[2]); | |
74 | inregs.x.dx = (unsigned long) XFASTINT (XVECTOR (registers)->contents[3]); | |
75 | inregs.x.si = (unsigned long) XFASTINT (XVECTOR (registers)->contents[4]); | |
76 | inregs.x.di = (unsigned long) XFASTINT (XVECTOR (registers)->contents[5]); | |
77 | inregs.x.cflag = (unsigned long) XFASTINT (XVECTOR (registers)->contents[6]); | |
78 | inregs.x.flags = (unsigned long) XFASTINT (XVECTOR (registers)->contents[7]); | |
1b94449f RS |
79 | |
80 | int86 (no, &inregs, &outregs); | |
81 | ||
e20104ba EN |
82 | XVECTOR (registers)->contents[0] = make_number (outregs.x.ax); |
83 | XVECTOR (registers)->contents[1] = make_number (outregs.x.bx); | |
84 | XVECTOR (registers)->contents[2] = make_number (outregs.x.cx); | |
85 | XVECTOR (registers)->contents[3] = make_number (outregs.x.dx); | |
86 | XVECTOR (registers)->contents[4] = make_number (outregs.x.si); | |
87 | XVECTOR (registers)->contents[5] = make_number (outregs.x.di); | |
88 | XVECTOR (registers)->contents[6] = make_number (outregs.x.cflag); | |
89 | XVECTOR (registers)->contents[7] = make_number (outregs.x.flags); | |
1b94449f | 90 | |
e20104ba | 91 | return registers; |
1b94449f RS |
92 | } |
93 | ||
5f08dc78 | 94 | DEFUN ("msdos-memget", Fdos_memget, Sdos_memget, 2, 2, 0, |
7363986a PJ |
95 | doc: /* Read DOS memory at offset ADDRESS into VECTOR. |
96 | Return the updated VECTOR. */) | |
5842a27b | 97 | (Lisp_Object address, Lisp_Object vector) |
5f08dc78 KS |
98 | { |
99 | register int i; | |
100 | int offs, len; | |
101 | char *buf; | |
5f08dc78 | 102 | |
b7826503 | 103 | CHECK_NUMBER (address); |
e20104ba | 104 | offs = (unsigned long) XINT (address); |
b7826503 | 105 | CHECK_VECTOR (vector); |
e20104ba | 106 | len = XVECTOR (vector)-> size; |
238a44a8 | 107 | if (len < 1 || len > 2048 || offs < 0 || offs > 0xfffff - len) |
5f08dc78 KS |
108 | return Qnil; |
109 | buf = alloca (len); | |
110 | dosmemget (offs, len, buf); | |
b058cb36 | 111 | |
5f08dc78 | 112 | for (i = 0; i < len; i++) |
e20104ba | 113 | XVECTOR (vector)->contents[i] = make_number (buf[i]); |
5f08dc78 | 114 | |
e20104ba | 115 | return vector; |
5f08dc78 KS |
116 | } |
117 | ||
118 | DEFUN ("msdos-memput", Fdos_memput, Sdos_memput, 2, 2, 0, | |
7363986a | 119 | doc: /* Write DOS memory at offset ADDRESS from VECTOR. */) |
5842a27b | 120 | (Lisp_Object address, Lisp_Object vector) |
5f08dc78 KS |
121 | { |
122 | register int i; | |
123 | int offs, len; | |
124 | char *buf; | |
5f08dc78 | 125 | |
b7826503 | 126 | CHECK_NUMBER (address); |
e20104ba | 127 | offs = (unsigned long) XINT (address); |
b7826503 | 128 | CHECK_VECTOR (vector); |
e20104ba | 129 | len = XVECTOR (vector)-> size; |
238a44a8 | 130 | if (len < 1 || len > 2048 || offs < 0 || offs > 0xfffff - len) |
5f08dc78 KS |
131 | return Qnil; |
132 | buf = alloca (len); | |
133 | ||
134 | for (i = 0; i < len; i++) | |
135 | { | |
b7826503 | 136 | CHECK_NUMBER (XVECTOR (vector)->contents[i]); |
e20104ba | 137 | buf[i] = (unsigned char) XFASTINT (XVECTOR (vector)->contents[i]) & 0xFF; |
5f08dc78 KS |
138 | } |
139 | ||
140 | dosmemput (buf, len, offs); | |
141 | return Qt; | |
142 | } | |
143 | ||
144 | DEFUN ("msdos-set-keyboard", Fmsdos_set_keyboard, Smsdos_set_keyboard, 1, 2, 0, | |
7363986a PJ |
145 | doc: /* Set keyboard layout according to COUNTRY-CODE. |
146 | If the optional argument ALLKEYS is non-nil, the keyboard is mapped for | |
147 | all keys; otherwise it is only used when the ALT key is pressed. | |
148 | The current keyboard layout is available in dos-keyboard-code. */) | |
5842a27b | 149 | (Lisp_Object country_code, Lisp_Object allkeys) |
5f08dc78 | 150 | { |
b7826503 | 151 | CHECK_NUMBER (country_code); |
5f08dc78 KS |
152 | if (!dos_set_keyboard (XINT (country_code), !NILP (allkeys))) |
153 | return Qnil; | |
154 | return Qt; | |
155 | } | |
156 | ||
87485d6f MW |
157 | #ifndef HAVE_X_WINDOWS |
158 | /* Later we might want to control the mouse interface with this function, | |
159 | e.g., with respect to non-80 column screen modes. */ | |
160 | ||
7363986a PJ |
161 | DEFUN ("msdos-mouse-p", Fmsdos_mouse_p, Smsdos_mouse_p, 0, 0, 0, |
162 | doc: /* Report whether a mouse is present. */) | |
5842a27b | 163 | (void) |
87485d6f MW |
164 | { |
165 | if (have_mouse) | |
166 | return Qt; | |
167 | else | |
168 | return Qnil; | |
169 | } | |
87485d6f MW |
170 | #endif |
171 | ||
ac3b0279 | 172 | DEFUN ("msdos-mouse-init", Fmsdos_mouse_init, Smsdos_mouse_init, 0, 0, "", |
7363986a | 173 | doc: /* Initialize and enable mouse if available. */) |
5842a27b | 174 | (void) |
ac3b0279 | 175 | { |
5f08dc78 KS |
176 | if (have_mouse) |
177 | { | |
178 | have_mouse = 1; | |
179 | mouse_init (); | |
180 | return Qt; | |
181 | } | |
ac3b0279 RS |
182 | return Qnil; |
183 | } | |
184 | ||
185 | DEFUN ("msdos-mouse-enable", Fmsdos_mouse_enable, Smsdos_mouse_enable, 0, 0, "", | |
7363986a | 186 | doc: /* Enable mouse if available. */) |
5842a27b | 187 | (void) |
ac3b0279 RS |
188 | { |
189 | if (have_mouse) | |
190 | { | |
5f08dc78 KS |
191 | have_mouse = 1; |
192 | mouse_on (); | |
ac3b0279 RS |
193 | } |
194 | return have_mouse ? Qt : Qnil; | |
195 | } | |
196 | ||
197 | DEFUN ("msdos-mouse-disable", Fmsdos_mouse_disable, Smsdos_mouse_disable, 0, 0, "", | |
7363986a | 198 | doc: /* Disable mouse if available. */) |
5842a27b | 199 | (void) |
ac3b0279 RS |
200 | { |
201 | mouse_off (); | |
202 | if (have_mouse) have_mouse = -1; | |
203 | return Qnil; | |
204 | } | |
205 | ||
7363986a | 206 | DEFUN ("insert-startup-screen", Finsert_startup_screen, Sinsert_startup_screen, 0, 0, "", |
cd53fb50 | 207 | doc: /* Insert copy of screen contents prior to starting Emacs. |
7363986a | 208 | Return nil if startup screen is not available. */) |
5842a27b | 209 | (void) |
5f08dc78 KS |
210 | { |
211 | char *s; | |
b058cb36 EZ |
212 | int rows, cols, i, j; |
213 | ||
5f08dc78 KS |
214 | if (!dos_get_saved_screen (&s, &rows, &cols)) |
215 | return Qnil; | |
b058cb36 | 216 | |
5f08dc78 KS |
217 | for (i = 0; i < rows; i++) |
218 | { | |
219 | for (j = 0; j < cols; j++) | |
220 | { | |
65788bc2 | 221 | insert_char (*s); |
5f08dc78 KS |
222 | s += 2; |
223 | } | |
65788bc2 | 224 | insert_char ('\n'); |
5f08dc78 KS |
225 | } |
226 | ||
227 | return Qt; | |
228 | } | |
87485d6f | 229 | \f |
5f08dc78 | 230 | /* country info */ |
31ade731 SM |
231 | EMACS_INT dos_country_code; |
232 | EMACS_INT dos_codepage; | |
233 | EMACS_INT dos_timezone_offset; | |
234 | EMACS_INT dos_decimal_point; | |
235 | EMACS_INT dos_keyboard_layout; | |
5f08dc78 | 236 | unsigned char dos_country_info[DOS_COUNTRY_INFO]; |
e089dc62 RS |
237 | static unsigned char usa_country_info[DOS_COUNTRY_INFO] = { |
238 | 0, 0, /* date format */ | |
239 | '$', 0, 0, 0, 0, /* currency string */ | |
240 | ',', 0, /* thousands separator */ | |
241 | '.', 0, /* decimal separator */ | |
242 | '/', 0, /* date separator */ | |
243 | ':', 0, /* time separator */ | |
244 | 0, /* currency format */ | |
245 | 2, /* digits after decimal in currency */ | |
246 | 0, /* time format */ | |
247 | 0, 0, 0, 0, /* address of case map routine, GPF if used */ | |
248 | ' ', 0, /* data-list separator (?) */ | |
249 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* reserved */ | |
250 | }; | |
5f08dc78 | 251 | |
31ade731 SM |
252 | EMACS_INT dos_hyper_key; |
253 | EMACS_INT dos_super_key; | |
254 | EMACS_INT dos_keypad_mode; | |
1b94449f | 255 | |
5f08dc78 KS |
256 | Lisp_Object Vdos_version; |
257 | Lisp_Object Vdos_display_scancodes; | |
838a94b8 EZ |
258 | |
259 | #ifndef HAVE_X_WINDOWS | |
260 | static unsigned dos_windows_version; | |
261 | Lisp_Object Vdos_windows_version; | |
262 | ||
263 | char parent_vm_title[50]; /* Ralf Brown says 30 is enough */ | |
264 | int w95_set_virtual_machine_title (const char *); | |
265 | ||
266 | void | |
267 | restore_parent_vm_title (void) | |
268 | { | |
269 | if (NILP (Vdos_windows_version)) | |
270 | return; | |
271 | if ((dos_windows_version & 0xff) >= 4 && parent_vm_title[0]) | |
272 | w95_set_virtual_machine_title (parent_vm_title); | |
273 | delay (50); | |
274 | } | |
275 | #endif /* !HAVE_X_WINDOWS */ | |
b058cb36 | 276 | |
1b94449f | 277 | void |
3a8ce822 | 278 | init_dosfns (void) |
1b94449f RS |
279 | { |
280 | union REGS regs; | |
1b94449f | 281 | _go32_dpmi_registers dpmiregs; |
e089dc62 | 282 | unsigned long xbuf = _go32_info_block.linear_address_of_transfer_buffer; |
1b94449f | 283 | |
87485d6f | 284 | #ifndef SYSTEM_MALLOC |
891ef8f7 EZ |
285 | extern void get_lim_data (void); |
286 | ||
1b94449f | 287 | get_lim_data (); /* why the hell isn't this called elsewhere? */ |
87485d6f | 288 | #endif |
1b94449f RS |
289 | |
290 | regs.x.ax = 0x3000; | |
291 | intdos (®s, ®s); | |
292 | Vdos_version = Fcons (make_number (regs.h.al), make_number (regs.h.ah)); | |
293 | ||
e089dc62 RS |
294 | /* Obtain the country code via DPMI, use DJGPP transfer buffer. */ |
295 | dpmiregs.x.ax = 0x3800; | |
7a2fd369 | 296 | dpmiregs.x.ds = xbuf >> 4; |
e089dc62 RS |
297 | dpmiregs.x.dx = 0; |
298 | dpmiregs.x.ss = dpmiregs.x.sp = dpmiregs.x.flags = 0; | |
299 | _go32_dpmi_simulate_int (0x21, &dpmiregs); | |
300 | if (dpmiregs.x.flags & 1) | |
301 | { | |
302 | dos_country_code = 1; /* assume USA if 213800 failed */ | |
303 | memcpy (dos_country_info, usa_country_info, DOS_COUNTRY_INFO); | |
304 | } | |
1b94449f RS |
305 | else |
306 | { | |
1b94449f | 307 | dos_country_code = dpmiregs.x.bx; |
e089dc62 | 308 | dosmemget (xbuf, DOS_COUNTRY_INFO, dos_country_info); |
1b94449f | 309 | } |
e089dc62 | 310 | |
5f08dc78 | 311 | dos_set_keyboard (dos_country_code, 0); |
1b94449f RS |
312 | |
313 | regs.x.ax = 0x6601; | |
314 | intdos (®s, ®s); | |
315 | if (regs.x.cflag) | |
316 | /* Estimate code page from country code */ | |
b058cb36 | 317 | switch (dos_country_code) |
1b94449f RS |
318 | { |
319 | case 45: /* Denmark */ | |
320 | case 47: /* Norway */ | |
321 | dos_codepage = 865; | |
322 | break; | |
323 | default: | |
324 | /* US */ | |
325 | dos_codepage = 437; | |
326 | } | |
327 | else | |
328 | dos_codepage = regs.x.bx & 0xffff; | |
50666766 | 329 | |
838a94b8 EZ |
330 | #ifndef HAVE_X_WINDOWS |
331 | parent_vm_title[0] = '\0'; | |
332 | ||
333 | /* If we are running from DOS box on MS-Windows, get Windows version. */ | |
334 | dpmiregs.x.ax = 0x1600; /* enhanced mode installation check */ | |
335 | dpmiregs.x.ss = dpmiregs.x.sp = dpmiregs.x.flags = 0; | |
336 | _go32_dpmi_simulate_int (0x2f, &dpmiregs); | |
337 | /* We only support Windows-specific features when we run on Windows 9X | |
338 | or on Windows 3.X/enhanced mode. | |
339 | ||
340 | Int 2Fh/AX=1600h returns: | |
341 | ||
342 | AL = 00: no Windows at all; | |
343 | AL = 01: Windows/386 2.x; | |
344 | AL = 80h: Windows 3.x in mode other than enhanced; | |
345 | AL = FFh: Windows/386 2.x | |
346 | ||
347 | We also check AH > 0 (Windows 3.1 or later), in case AL tricks us. */ | |
348 | if (dpmiregs.h.al > 2 && dpmiregs.h.al != 0x80 && dpmiregs.h.al != 0xff | |
349 | && (dpmiregs.h.al > 3 || dpmiregs.h.ah > 0)) | |
350 | { | |
351 | dos_windows_version = dpmiregs.x.ax; | |
352 | Vdos_windows_version = | |
353 | Fcons (make_number (dpmiregs.h.al), make_number (dpmiregs.h.ah)); | |
354 | ||
355 | /* Save the current title of this virtual machine, so we can restore | |
356 | it before exiting. Otherwise, Windows 95 will continue to use | |
357 | the title we set even after we are history, stupido... */ | |
358 | if (dpmiregs.h.al >= 4) | |
359 | { | |
360 | dpmiregs.x.ax = 0x168e; | |
361 | dpmiregs.x.dx = 3; /* get VM title */ | |
362 | dpmiregs.x.cx = sizeof(parent_vm_title) - 1; | |
363 | dpmiregs.x.es = __tb >> 4; | |
364 | dpmiregs.x.di = __tb & 15; | |
365 | dpmiregs.x.sp = dpmiregs.x.ss = dpmiregs.x.flags = 0; | |
366 | _go32_dpmi_simulate_int (0x2f, &dpmiregs); | |
367 | if (dpmiregs.x.ax == 1) | |
368 | dosmemget (__tb, sizeof(parent_vm_title), parent_vm_title); | |
369 | } | |
370 | } | |
371 | else | |
372 | { | |
373 | dos_windows_version = 0; | |
374 | Vdos_windows_version = Qnil; | |
375 | } | |
376 | #endif /* !HAVE_X_WINDOWS */ | |
377 | ||
459f4042 RS |
378 | /* Without this, we never see hidden files. |
379 | Don't OR it with the previous value, so the value recorded at dump | |
380 | time, possibly with `preserve-case' flags set, won't get through. */ | |
381 | __opendir_flags = __OPENDIR_FIND_HIDDEN; | |
382 | ||
383 | #if __DJGPP_MINOR__ == 0 | |
384 | /* Under LFN, preserve the case of files as recorded in the directory | |
385 | (in DJGPP 2.01 and later this is automagically done by the library). */ | |
50666766 RS |
386 | if (!NILP (Fmsdos_long_file_names ())) |
387 | __opendir_flags |= __OPENDIR_PRESERVE_CASE; | |
459f4042 | 388 | #endif /* __DJGPP_MINOR__ == 0 */ |
1b94449f RS |
389 | } |
390 | \f | |
838a94b8 | 391 | #ifndef HAVE_X_WINDOWS |
e4441df0 EZ |
392 | |
393 | /* Emulation of some X window features from xfns.c and xfaces.c. */ | |
394 | ||
395 | /* Standard VGA colors, in the order of their standard numbering | |
396 | in the default VGA palette. */ | |
397 | static char *vga_colors[16] = { | |
398 | "black", "blue", "green", "cyan", "red", "magenta", "brown", | |
399 | "lightgray", "darkgray", "lightblue", "lightgreen", "lightcyan", | |
400 | "lightred", "lightmagenta", "yellow", "white" | |
401 | }; | |
402 | ||
403 | /* Given a color name, return its index, or -1 if not found. Note | |
404 | that this only performs case-insensitive comparison against the | |
405 | standard names. For anything more sophisticated, like matching | |
406 | "gray" with "grey" or translating X color names into their MSDOS | |
2d764c78 EZ |
407 | equivalents, call the Lisp function Qtty_color_desc (defined |
408 | on lisp/term/tty-colors.el). */ | |
e4441df0 EZ |
409 | int |
410 | msdos_stdcolor_idx (const char *name) | |
411 | { | |
412 | int i; | |
413 | ||
414 | for (i = 0; i < sizeof (vga_colors) / sizeof (vga_colors[0]); i++) | |
05131107 | 415 | if (xstrcasecmp (name, vga_colors[i]) == 0) |
e4441df0 EZ |
416 | return i; |
417 | ||
f9d2fdc4 | 418 | return |
24480d5b EZ |
419 | strcmp (name, unspecified_fg) == 0 ? FACE_TTY_DEFAULT_FG_COLOR |
420 | : strcmp (name, unspecified_bg) == 0 ? FACE_TTY_DEFAULT_BG_COLOR | |
f9d2fdc4 | 421 | : FACE_TTY_DEFAULT_COLOR; |
e4441df0 EZ |
422 | } |
423 | ||
424 | /* Given a color index, return its standard name. */ | |
2d764c78 | 425 | Lisp_Object |
e4441df0 EZ |
426 | msdos_stdcolor_name (int idx) |
427 | { | |
24480d5b EZ |
428 | extern Lisp_Object Qunspecified; |
429 | ||
430 | if (idx == FACE_TTY_DEFAULT_FG_COLOR) | |
431 | return build_string (unspecified_fg); | |
432 | else if (idx == FACE_TTY_DEFAULT_BG_COLOR) | |
433 | return build_string (unspecified_bg); | |
434 | else if (idx >= 0 && idx < sizeof (vga_colors) / sizeof (vga_colors[0])) | |
435 | return build_string (vga_colors[idx]); | |
436 | else | |
437 | return Qunspecified; /* meaning the default */ | |
e4441df0 EZ |
438 | } |
439 | ||
838a94b8 EZ |
440 | /* Support for features that are available when we run in a DOS box |
441 | on MS-Windows. */ | |
442 | int | |
443 | ms_windows_version (void) | |
444 | { | |
445 | return dos_windows_version; | |
446 | } | |
447 | ||
448 | /* Set the title of the current virtual machine, to appear on | |
449 | the caption bar of that machine's window. */ | |
450 | ||
451 | int | |
452 | w95_set_virtual_machine_title (const char *title_string) | |
453 | { | |
454 | /* Only Windows 9X (version 4 and higher) support this function. */ | |
455 | if (!NILP (Vdos_windows_version) | |
456 | && (dos_windows_version & 0xff) >= 4) | |
457 | { | |
458 | _go32_dpmi_registers regs; | |
459 | dosmemput (title_string, strlen (title_string) + 1, __tb); | |
460 | regs.x.ax = 0x168e; | |
461 | regs.x.dx = 1; | |
462 | regs.x.es = __tb >> 4; | |
463 | regs.x.di = __tb & 15; | |
464 | regs.x.sp = regs.x.ss = regs.x.flags = 0; | |
465 | _go32_dpmi_simulate_int (0x2f, ®s); | |
466 | return regs.x.ax == 1; | |
467 | } | |
468 | return 0; | |
469 | } | |
470 | ||
471 | /* Change the title of frame F to NAME. | |
472 | If NAME is nil, use the frame name as the title. | |
473 | ||
474 | If Emacs is not run from a DOS box on Windows 9X, this only | |
475 | sets the name in the frame struct, but has no other effects. */ | |
476 | ||
477 | void | |
3a8ce822 | 478 | x_set_title (struct frame *f, Lisp_Object name) |
838a94b8 EZ |
479 | { |
480 | /* Don't change the title if it's already NAME. */ | |
481 | if (EQ (name, f->title)) | |
482 | return; | |
483 | ||
484 | update_mode_lines = 1; | |
485 | ||
486 | f->title = name; | |
487 | ||
488 | if (NILP (name)) | |
489 | name = f->name; | |
490 | ||
491 | if (FRAME_MSDOS_P (f)) | |
492 | { | |
493 | BLOCK_INPUT; | |
d5db4077 | 494 | w95_set_virtual_machine_title (SDATA (name)); |
838a94b8 EZ |
495 | UNBLOCK_INPUT; |
496 | } | |
497 | } | |
498 | #endif /* !HAVE_X_WINDOWS */ | |
499 | \f | |
76a76a57 | 500 | DEFUN ("file-system-info", Ffile_system_info, Sfile_system_info, 1, 1, 0, |
7363986a PJ |
501 | doc: /* Return storage information about the file system FILENAME is on. |
502 | Value is a list of floats (TOTAL FREE AVAIL), where TOTAL is the total | |
503 | storage of the file system, FREE is the free storage, and AVAIL is the | |
504 | storage available to a non-superuser. All 3 numbers are in bytes. | |
505 | If the underlying system call fails, value is nil. */) | |
5842a27b | 506 | (Lisp_Object filename) |
76a76a57 EZ |
507 | { |
508 | struct statfs stfs; | |
509 | Lisp_Object encoded, value; | |
510 | ||
b7826503 | 511 | CHECK_STRING (filename); |
76a76a57 EZ |
512 | filename = Fexpand_file_name (filename, Qnil); |
513 | encoded = ENCODE_FILE (filename); | |
514 | ||
d5db4077 | 515 | if (statfs (SDATA (encoded), &stfs)) |
76a76a57 EZ |
516 | value = Qnil; |
517 | else | |
518 | value = list3 (make_float ((double) stfs.f_bsize * stfs.f_blocks), | |
519 | make_float ((double) stfs.f_bsize * stfs.f_bfree), | |
520 | make_float ((double) stfs.f_bsize * stfs.f_bavail)); | |
521 | ||
522 | return value; | |
523 | } | |
524 | \f | |
e5c9f94c EZ |
525 | /* System depended enumeration of and access to system processes a-la |
526 | ps(1). Here, we only return info about the running Emacs process. | |
527 | (There are no other processes on DOS, right?) */ | |
528 | ||
529 | Lisp_Object | |
3a8ce822 | 530 | list_system_processes (void) |
e5c9f94c EZ |
531 | { |
532 | Lisp_Object proclist = Qnil; | |
533 | ||
534 | proclist = Fcons (make_fixnum_or_float (getpid ()), proclist); | |
535 | ||
536 | return proclist; | |
537 | } | |
538 | ||
539 | Lisp_Object | |
540 | system_process_attributes (Lisp_Object pid) | |
541 | { | |
542 | int proc_id; | |
543 | Lisp_Object attrs = Qnil; | |
544 | ||
545 | CHECK_NUMBER_OR_FLOAT (pid); | |
546 | proc_id = FLOATP (pid) ? XFLOAT_DATA (pid) : XINT (pid); | |
547 | ||
548 | if (proc_id == getpid ()) | |
549 | { | |
550 | EMACS_INT uid, gid; | |
551 | char *usr; | |
552 | struct group *gr; | |
553 | char cmd[FILENAME_MAX]; | |
554 | char *cmdline = NULL, *p, *q; | |
555 | size_t cmdline_size = 0; | |
556 | int i; | |
557 | Lisp_Object cmd_str, decoded_cmd, tem; | |
558 | double pmem; | |
891ef8f7 | 559 | EXFUN (Fget_internal_run_time, 0); |
693a2698 | 560 | #ifndef SYSTEM_MALLOC |
e5c9f94c | 561 | extern unsigned long ret_lim_data (); |
693a2698 | 562 | #endif |
e5c9f94c EZ |
563 | |
564 | uid = getuid (); | |
565 | attrs = Fcons (Fcons (Qeuid, make_fixnum_or_float (uid)), attrs); | |
566 | usr = getlogin (); | |
567 | if (usr) | |
568 | attrs = Fcons (Fcons (Quser, build_string (usr)), attrs); | |
569 | gid = getgid (); | |
570 | attrs = Fcons (Fcons (Qegid, make_fixnum_or_float (gid)), attrs); | |
571 | gr = getgrgid (gid); | |
572 | if (gr) | |
573 | attrs = Fcons (Fcons (Qgroup, build_string (gr->gr_name)), attrs); | |
574 | strcpy (cmd, basename (__crt0_argv[0])); | |
575 | /* Command name is encoded in locale-coding-system; decode it. */ | |
576 | cmd_str = make_unibyte_string (cmd, strlen (cmd)); | |
577 | decoded_cmd = code_convert_string_norecord (cmd_str, | |
578 | Vlocale_coding_system, 0); | |
579 | attrs = Fcons (Fcons (Qcomm, decoded_cmd), attrs); | |
580 | /* Pretend we have 0 as PPID. */ | |
581 | attrs = Fcons (Fcons (Qppid, make_number (0)), attrs); | |
582 | attrs = Fcons (Fcons (Qpgrp, pid), attrs); | |
583 | attrs = Fcons (Fcons (Qttname, build_string ("/dev/tty")), attrs); | |
584 | /* We are never idle! */ | |
585 | tem = Fget_internal_run_time (); | |
586 | attrs = Fcons (Fcons (Qtime, tem), attrs); | |
587 | attrs = Fcons (Fcons (Qthcount, make_number (1)), attrs); | |
588 | attrs = Fcons (Fcons (Qstart, | |
589 | Fsymbol_value (intern ("before-init-time"))), | |
590 | attrs); | |
591 | attrs = Fcons (Fcons (Qvsize, | |
592 | make_fixnum_or_float ((unsigned long)sbrk(0)/1024)), | |
593 | attrs); | |
594 | attrs = Fcons (Fcons (Qetime, tem), attrs); | |
693a2698 EZ |
595 | #ifndef SYSTEM_MALLOC |
596 | /* ret_lim_data is on vm-limit.c, which is not compiled in under | |
597 | SYSTEM_MALLOC. */ | |
e5c9f94c EZ |
598 | pmem = (double)((unsigned long) sbrk (0)) / ret_lim_data () * 100.0; |
599 | if (pmem > 100) | |
693a2698 | 600 | #endif |
e5c9f94c EZ |
601 | pmem = 100; |
602 | attrs = Fcons (Fcons (Qpmem, make_float (pmem)), attrs); | |
603 | /* Pass 1: Count how much storage we need. */ | |
604 | for (i = 0; i < __crt0_argc; i++) | |
605 | { | |
606 | cmdline_size += strlen (__crt0_argv[i]) + 1; /* +1 for blank delim */ | |
607 | if (strpbrk (__crt0_argv[i], " \t\n\r\v\f")) | |
608 | { | |
609 | cmdline_size += 2; | |
610 | for (p = __crt0_argv[i]; *p; p++) | |
611 | { | |
612 | if (*p == '"') | |
613 | cmdline_size++; | |
614 | } | |
615 | } | |
616 | } | |
617 | /* Pass 2: Allocate storage and concatenate argv[]. */ | |
618 | cmdline = xmalloc (cmdline_size + 1); | |
619 | for (i = 0, q = cmdline; i < __crt0_argc; i++) | |
620 | { | |
621 | if (strpbrk (__crt0_argv[i], " \t\n\r\v\f")) | |
622 | { | |
623 | *q++ = '"'; | |
624 | for (p = __crt0_argv[i]; *p; p++) | |
625 | { | |
626 | if (*p == '\"') | |
627 | *q++ = '\\'; | |
628 | *q++ = *p; | |
629 | } | |
630 | *q++ = '"'; | |
631 | } | |
632 | else | |
633 | { | |
634 | strcpy (q, __crt0_argv[i]); | |
635 | q += strlen (__crt0_argv[i]); | |
636 | } | |
637 | *q++ = ' '; | |
638 | } | |
639 | /* Remove the trailing blank. */ | |
640 | if (q > cmdline) | |
641 | q[-1] = '\0'; | |
642 | ||
643 | /* Command line is encoded in locale-coding-system; decode it. */ | |
644 | cmd_str = make_unibyte_string (cmdline, strlen (cmdline)); | |
645 | decoded_cmd = code_convert_string_norecord (cmd_str, | |
646 | Vlocale_coding_system, 0); | |
647 | xfree (cmdline); | |
648 | attrs = Fcons (Fcons (Qargs, decoded_cmd), attrs); | |
649 | } | |
650 | ||
651 | return attrs; | |
652 | } | |
653 | \f | |
838a94b8 EZ |
654 | void |
655 | dos_cleanup (void) | |
656 | { | |
c06981c0 EZ |
657 | struct tty_display_info *tty; |
658 | ||
838a94b8 EZ |
659 | #ifndef HAVE_X_WINDOWS |
660 | restore_parent_vm_title (); | |
661 | #endif | |
6f855d64 EZ |
662 | /* Make sure the termscript file is committed, in case we are |
663 | crashing and some vital info was written there. */ | |
c06981c0 | 664 | if (FRAMEP (selected_frame)) |
6f855d64 | 665 | { |
c06981c0 EZ |
666 | struct frame *sf = XFRAME (selected_frame); |
667 | ||
668 | if (FRAME_LIVE_P (sf) | |
669 | && (FRAME_MSDOS_P (sf) || FRAME_TERMCAP_P (sf))) | |
670 | { | |
671 | tty = CURTTY (); | |
672 | if (tty->termscript) | |
673 | { | |
674 | fflush (tty->termscript); | |
675 | fsync (fileno (tty->termscript)); | |
676 | } | |
677 | } | |
6f855d64 | 678 | } |
838a94b8 EZ |
679 | } |
680 | ||
1b94449f RS |
681 | /* |
682 | * Define everything | |
683 | */ | |
3a8ce822 EZ |
684 | void |
685 | syms_of_dosfns (void) | |
1b94449f | 686 | { |
1b94449f | 687 | defsubr (&Sint86); |
5f08dc78 KS |
688 | defsubr (&Sdos_memget); |
689 | defsubr (&Sdos_memput); | |
ac3b0279 RS |
690 | defsubr (&Smsdos_mouse_init); |
691 | defsubr (&Smsdos_mouse_enable); | |
5f08dc78 KS |
692 | defsubr (&Smsdos_set_keyboard); |
693 | defsubr (&Sinsert_startup_screen); | |
ac3b0279 | 694 | defsubr (&Smsdos_mouse_disable); |
76a76a57 | 695 | defsubr (&Sfile_system_info); |
87485d6f MW |
696 | #ifndef HAVE_X_WINDOWS |
697 | defsubr (&Smsdos_mouse_p); | |
87485d6f | 698 | #endif |
1b94449f RS |
699 | |
700 | DEFVAR_INT ("dos-country-code", &dos_country_code, | |
7363986a PJ |
701 | doc: /* The country code returned by Dos when Emacs was started. |
702 | Usually this is the international telephone prefix. */); | |
1b94449f RS |
703 | |
704 | DEFVAR_INT ("dos-codepage", &dos_codepage, | |
7363986a PJ |
705 | doc: /* The codepage active when Emacs was started. |
706 | The following are known: | |
707 | 437 United States | |
708 | 850 Multilingual (Latin I) | |
709 | 852 Slavic (Latin II) | |
710 | 857 Turkish | |
711 | 860 Portugal | |
712 | 861 Iceland | |
713 | 863 Canada (French) | |
714 | 865 Norway/Denmark */); | |
1b94449f | 715 | |
5f08dc78 | 716 | DEFVAR_INT ("dos-timezone-offset", &dos_timezone_offset, |
7363986a PJ |
717 | doc: /* The current timezone offset to UTC in minutes. |
718 | Implicitly modified when the TZ variable is changed. */); | |
b058cb36 | 719 | |
1b94449f | 720 | DEFVAR_LISP ("dos-version", &Vdos_version, |
7363986a | 721 | doc: /* The (MAJOR . MINOR) Dos version (subject to modification with setver). */); |
5f08dc78 | 722 | |
838a94b8 EZ |
723 | #ifndef HAVE_X_WINDOWS |
724 | DEFVAR_LISP ("dos-windows-version", &Vdos_windows_version, | |
7363986a | 725 | doc: /* The (MAJOR . MINOR) Windows version for DOS session on MS-Windows. */); |
838a94b8 EZ |
726 | #endif |
727 | ||
5f08dc78 | 728 | DEFVAR_LISP ("dos-display-scancodes", &Vdos_display_scancodes, |
7363986a PJ |
729 | doc: /* *Controls whether DOS raw keyboard events are displayed as you type. |
730 | When non-nil, the keyboard scan-codes are displayed at the bottom right | |
731 | corner of the display (typically at the end of the mode line). | |
732 | The output format is: scan code:char code*modifiers. */); | |
733 | ||
5f08dc78 | 734 | Vdos_display_scancodes = Qnil; |
b058cb36 | 735 | |
5f08dc78 | 736 | DEFVAR_INT ("dos-hyper-key", &dos_hyper_key, |
7363986a PJ |
737 | doc: /* *If set to 1, use right ALT key as hyper key. |
738 | If set to 2, use right CTRL key as hyper key. */); | |
5f08dc78 | 739 | dos_hyper_key = 0; |
b058cb36 | 740 | |
5f08dc78 | 741 | DEFVAR_INT ("dos-super-key", &dos_super_key, |
7363986a PJ |
742 | doc: /* *If set to 1, use right ALT key as super key. |
743 | If set to 2, use right CTRL key as super key. */); | |
5f08dc78 | 744 | dos_super_key = 0; |
b058cb36 | 745 | |
5f08dc78 | 746 | DEFVAR_INT ("dos-keypad-mode", &dos_keypad_mode, |
7363986a PJ |
747 | doc: /* *Controls what key code is returned by a key in the numeric keypad. |
748 | The `numlock ON' action is only taken if no modifier keys are pressed. | |
749 | The value is an integer constructed by adding the following bits together: | |
750 | ||
751 | 0x00 Digit key returns digit (if numlock ON) | |
752 | 0x01 Digit key returns kp-digit (if numlock ON) | |
753 | 0x02 Digit key returns M-digit (if numlock ON) | |
754 | 0x03 Digit key returns edit key (if numlock ON) | |
755 | ||
756 | 0x00 Grey key returns char (if numlock ON) | |
757 | 0x04 Grey key returns kp-key (if numlock ON) | |
758 | ||
759 | 0x00 Digit key returns digit (if numlock OFF) | |
760 | 0x10 Digit key returns kp-digit (if numlock OFF) | |
761 | 0x20 Digit key returns M-digit (if numlock OFF) | |
762 | 0x30 Digit key returns edit key (if numlock OFF) | |
763 | ||
764 | 0x00 Grey key returns char (if numlock OFF) | |
765 | 0x40 Grey key returns kp-key (if numlock OFF) | |
766 | ||
767 | 0x200 ALT-0..ALT-9 in top-row produces shifted codes. */); | |
b3d5621c | 768 | dos_keypad_mode = 0x75; |
b058cb36 | 769 | |
5f08dc78 | 770 | DEFVAR_INT ("dos-keyboard-layout", &dos_keyboard_layout, |
7363986a PJ |
771 | doc: /* Contains the country code for the current keyboard layout. |
772 | Use msdos-set-keyboard to select another keyboard layout. */); | |
5f08dc78 | 773 | dos_keyboard_layout = 1; /* US */ |
b058cb36 | 774 | |
5f08dc78 | 775 | DEFVAR_INT ("dos-decimal-point", &dos_decimal_point, |
7363986a PJ |
776 | doc: /* The character to produce when kp-decimal key is pressed. |
777 | If non-zero, this variable contains the character to be returned when the | |
778 | decimal point key in the numeric keypad is pressed when Num Lock is on. | |
779 | If zero, the decimal point key returns the country code specific value. */); | |
5f08dc78 | 780 | dos_decimal_point = 0; |
1b94449f RS |
781 | } |
782 | #endif /* MSDOS */ | |
6b61353c KH |
783 | |
784 | /* arch-tag: f5ea8847-a014-42c9-83f5-7738ad640b17 | |
785 | (do not change this comment) */ |