| 1 | /* MS-DOS specific Lisp utilities. Coded by Manabu Higashida, 1991. |
| 2 | Major changes May-July 1993 Morten Welinder (only 10% original code left) |
| 3 | Copyright (C) 1991, 1993, 1996, 1997, 1998, 2001 |
| 4 | Free Software Foundation, Inc. |
| 5 | |
| 6 | This file is part of GNU Emacs. |
| 7 | |
| 8 | GNU Emacs is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 2, or (at your option) |
| 11 | any later version. |
| 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 |
| 19 | along with GNU Emacs; see the file COPYING. If not, write to |
| 20 | the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 21 | Boston, MA 02111-1307, USA. */ |
| 22 | |
| 23 | #include <config.h> |
| 24 | |
| 25 | #ifdef MSDOS |
| 26 | /* The entire file is within this conditional */ |
| 27 | |
| 28 | #include <stdio.h> |
| 29 | #include <string.h> |
| 30 | #include <dos.h> |
| 31 | #include "lisp.h" |
| 32 | #include "buffer.h" |
| 33 | #include "termchar.h" |
| 34 | #include "termhooks.h" |
| 35 | #include "frame.h" |
| 36 | #include "blockinput.h" |
| 37 | #include "window.h" |
| 38 | #include "dosfns.h" |
| 39 | #include "msdos.h" |
| 40 | #include "dispextern.h" |
| 41 | #include "charset.h" |
| 42 | #include "coding.h" |
| 43 | #include <dpmi.h> |
| 44 | #include <go32.h> |
| 45 | #include <dirent.h> |
| 46 | #include <sys/vfs.h> |
| 47 | |
| 48 | #ifndef __DJGPP_MINOR__ |
| 49 | # define __tb _go32_info_block.linear_address_of_transfer_buffer; |
| 50 | #endif |
| 51 | |
| 52 | DEFUN ("int86", Fint86, Sint86, 2, 2, 0, |
| 53 | doc: /* Call specific MSDOS interrupt number INTERRUPT with REGISTERS. |
| 54 | Return the updated REGISTER vector. |
| 55 | |
| 56 | INTERRUPT should be an integer in the range 0 to 255. |
| 57 | REGISTERS should be a vector produced by `make-register' and |
| 58 | `set-register-value'. */) |
| 59 | (interrupt, registers) |
| 60 | Lisp_Object interrupt, registers; |
| 61 | { |
| 62 | register int i; |
| 63 | int no; |
| 64 | union REGS inregs, outregs; |
| 65 | Lisp_Object val; |
| 66 | |
| 67 | CHECK_NUMBER (interrupt); |
| 68 | no = (unsigned long) XINT (interrupt); |
| 69 | CHECK_VECTOR (registers); |
| 70 | if (no < 0 || no > 0xff || XVECTOR (registers)-> size != 8) |
| 71 | return Qnil; |
| 72 | for (i = 0; i < 8; i++) |
| 73 | CHECK_NUMBER (XVECTOR (registers)->contents[i]); |
| 74 | |
| 75 | inregs.x.ax = (unsigned long) XFASTINT (XVECTOR (registers)->contents[0]); |
| 76 | inregs.x.bx = (unsigned long) XFASTINT (XVECTOR (registers)->contents[1]); |
| 77 | inregs.x.cx = (unsigned long) XFASTINT (XVECTOR (registers)->contents[2]); |
| 78 | inregs.x.dx = (unsigned long) XFASTINT (XVECTOR (registers)->contents[3]); |
| 79 | inregs.x.si = (unsigned long) XFASTINT (XVECTOR (registers)->contents[4]); |
| 80 | inregs.x.di = (unsigned long) XFASTINT (XVECTOR (registers)->contents[5]); |
| 81 | inregs.x.cflag = (unsigned long) XFASTINT (XVECTOR (registers)->contents[6]); |
| 82 | inregs.x.flags = (unsigned long) XFASTINT (XVECTOR (registers)->contents[7]); |
| 83 | |
| 84 | int86 (no, &inregs, &outregs); |
| 85 | |
| 86 | XVECTOR (registers)->contents[0] = make_number (outregs.x.ax); |
| 87 | XVECTOR (registers)->contents[1] = make_number (outregs.x.bx); |
| 88 | XVECTOR (registers)->contents[2] = make_number (outregs.x.cx); |
| 89 | XVECTOR (registers)->contents[3] = make_number (outregs.x.dx); |
| 90 | XVECTOR (registers)->contents[4] = make_number (outregs.x.si); |
| 91 | XVECTOR (registers)->contents[5] = make_number (outregs.x.di); |
| 92 | XVECTOR (registers)->contents[6] = make_number (outregs.x.cflag); |
| 93 | XVECTOR (registers)->contents[7] = make_number (outregs.x.flags); |
| 94 | |
| 95 | return registers; |
| 96 | } |
| 97 | |
| 98 | DEFUN ("msdos-memget", Fdos_memget, Sdos_memget, 2, 2, 0, |
| 99 | doc: /* Read DOS memory at offset ADDRESS into VECTOR. |
| 100 | Return the updated VECTOR. */) |
| 101 | (address, vector) |
| 102 | Lisp_Object address, vector; |
| 103 | { |
| 104 | register int i; |
| 105 | int offs, len; |
| 106 | char *buf; |
| 107 | Lisp_Object val; |
| 108 | |
| 109 | CHECK_NUMBER (address); |
| 110 | offs = (unsigned long) XINT (address); |
| 111 | CHECK_VECTOR (vector); |
| 112 | len = XVECTOR (vector)-> size; |
| 113 | if (len < 1 || len > 2048 || address < 0 || address > 0xfffff - len) |
| 114 | return Qnil; |
| 115 | buf = alloca (len); |
| 116 | dosmemget (offs, len, buf); |
| 117 | |
| 118 | for (i = 0; i < len; i++) |
| 119 | XVECTOR (vector)->contents[i] = make_number (buf[i]); |
| 120 | |
| 121 | return vector; |
| 122 | } |
| 123 | |
| 124 | DEFUN ("msdos-memput", Fdos_memput, Sdos_memput, 2, 2, 0, |
| 125 | doc: /* Write DOS memory at offset ADDRESS from VECTOR. */) |
| 126 | (address, vector) |
| 127 | Lisp_Object address, vector; |
| 128 | { |
| 129 | register int i; |
| 130 | int offs, len; |
| 131 | char *buf; |
| 132 | Lisp_Object val; |
| 133 | |
| 134 | CHECK_NUMBER (address); |
| 135 | offs = (unsigned long) XINT (address); |
| 136 | CHECK_VECTOR (vector); |
| 137 | len = XVECTOR (vector)-> size; |
| 138 | if (len < 1 || len > 2048 || address < 0 || address > 0xfffff - len) |
| 139 | return Qnil; |
| 140 | buf = alloca (len); |
| 141 | |
| 142 | for (i = 0; i < len; i++) |
| 143 | { |
| 144 | CHECK_NUMBER (XVECTOR (vector)->contents[i]); |
| 145 | buf[i] = (unsigned char) XFASTINT (XVECTOR (vector)->contents[i]) & 0xFF; |
| 146 | } |
| 147 | |
| 148 | dosmemput (buf, len, offs); |
| 149 | return Qt; |
| 150 | } |
| 151 | |
| 152 | DEFUN ("msdos-set-keyboard", Fmsdos_set_keyboard, Smsdos_set_keyboard, 1, 2, 0, |
| 153 | doc: /* Set keyboard layout according to COUNTRY-CODE. |
| 154 | If the optional argument ALLKEYS is non-nil, the keyboard is mapped for |
| 155 | all keys; otherwise it is only used when the ALT key is pressed. |
| 156 | The current keyboard layout is available in dos-keyboard-code. */) |
| 157 | (country_code, allkeys) |
| 158 | Lisp_Object country_code; |
| 159 | { |
| 160 | CHECK_NUMBER (country_code); |
| 161 | if (!dos_set_keyboard (XINT (country_code), !NILP (allkeys))) |
| 162 | return Qnil; |
| 163 | return Qt; |
| 164 | } |
| 165 | |
| 166 | #ifndef HAVE_X_WINDOWS |
| 167 | /* Later we might want to control the mouse interface with this function, |
| 168 | e.g., with respect to non-80 column screen modes. */ |
| 169 | |
| 170 | DEFUN ("msdos-mouse-p", Fmsdos_mouse_p, Smsdos_mouse_p, 0, 0, 0, |
| 171 | doc: /* Report whether a mouse is present. */) |
| 172 | () |
| 173 | { |
| 174 | if (have_mouse) |
| 175 | return Qt; |
| 176 | else |
| 177 | return Qnil; |
| 178 | } |
| 179 | #endif |
| 180 | |
| 181 | DEFUN ("msdos-mouse-init", Fmsdos_mouse_init, Smsdos_mouse_init, 0, 0, "", |
| 182 | doc: /* Initialize and enable mouse if available. */) |
| 183 | () |
| 184 | { |
| 185 | if (have_mouse) |
| 186 | { |
| 187 | have_mouse = 1; |
| 188 | mouse_init (); |
| 189 | return Qt; |
| 190 | } |
| 191 | return Qnil; |
| 192 | } |
| 193 | |
| 194 | DEFUN ("msdos-mouse-enable", Fmsdos_mouse_enable, Smsdos_mouse_enable, 0, 0, "", |
| 195 | doc: /* Enable mouse if available. */) |
| 196 | () |
| 197 | { |
| 198 | if (have_mouse) |
| 199 | { |
| 200 | have_mouse = 1; |
| 201 | mouse_on (); |
| 202 | } |
| 203 | return have_mouse ? Qt : Qnil; |
| 204 | } |
| 205 | |
| 206 | DEFUN ("msdos-mouse-disable", Fmsdos_mouse_disable, Smsdos_mouse_disable, 0, 0, "", |
| 207 | doc: /* Disable mouse if available. */) |
| 208 | () |
| 209 | { |
| 210 | mouse_off (); |
| 211 | if (have_mouse) have_mouse = -1; |
| 212 | return Qnil; |
| 213 | } |
| 214 | |
| 215 | DEFUN ("insert-startup-screen", Finsert_startup_screen, Sinsert_startup_screen, 0, 0, "", |
| 216 | doc: /* Insert copy of screen contents prior to starting emacs. |
| 217 | Return nil if startup screen is not available. */) |
| 218 | () |
| 219 | { |
| 220 | char *s; |
| 221 | int rows, cols, i, j; |
| 222 | |
| 223 | if (!dos_get_saved_screen (&s, &rows, &cols)) |
| 224 | return Qnil; |
| 225 | |
| 226 | for (i = 0; i < rows; i++) |
| 227 | { |
| 228 | for (j = 0; j < cols; j++) |
| 229 | { |
| 230 | insert_char (*s); |
| 231 | s += 2; |
| 232 | } |
| 233 | insert_char ('\n'); |
| 234 | } |
| 235 | |
| 236 | return Qt; |
| 237 | } |
| 238 | \f |
| 239 | /* country info */ |
| 240 | EMACS_INT dos_country_code; |
| 241 | EMACS_INT dos_codepage; |
| 242 | EMACS_INT dos_timezone_offset; |
| 243 | EMACS_INT dos_decimal_point; |
| 244 | EMACS_INT dos_keyboard_layout; |
| 245 | unsigned char dos_country_info[DOS_COUNTRY_INFO]; |
| 246 | static unsigned char usa_country_info[DOS_COUNTRY_INFO] = { |
| 247 | 0, 0, /* date format */ |
| 248 | '$', 0, 0, 0, 0, /* currency string */ |
| 249 | ',', 0, /* thousands separator */ |
| 250 | '.', 0, /* decimal separator */ |
| 251 | '/', 0, /* date separator */ |
| 252 | ':', 0, /* time separator */ |
| 253 | 0, /* currency format */ |
| 254 | 2, /* digits after decimal in currency */ |
| 255 | 0, /* time format */ |
| 256 | 0, 0, 0, 0, /* address of case map routine, GPF if used */ |
| 257 | ' ', 0, /* data-list separator (?) */ |
| 258 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* reserved */ |
| 259 | }; |
| 260 | |
| 261 | EMACS_INT dos_hyper_key; |
| 262 | EMACS_INT dos_super_key; |
| 263 | EMACS_INT dos_keypad_mode; |
| 264 | |
| 265 | Lisp_Object Vdos_version; |
| 266 | Lisp_Object Vdos_display_scancodes; |
| 267 | |
| 268 | #ifndef HAVE_X_WINDOWS |
| 269 | static unsigned dos_windows_version; |
| 270 | Lisp_Object Vdos_windows_version; |
| 271 | |
| 272 | char parent_vm_title[50]; /* Ralf Brown says 30 is enough */ |
| 273 | int w95_set_virtual_machine_title (const char *); |
| 274 | |
| 275 | void |
| 276 | restore_parent_vm_title (void) |
| 277 | { |
| 278 | if (NILP (Vdos_windows_version)) |
| 279 | return; |
| 280 | if ((dos_windows_version & 0xff) >= 4 && parent_vm_title[0]) |
| 281 | w95_set_virtual_machine_title (parent_vm_title); |
| 282 | delay (50); |
| 283 | } |
| 284 | #endif /* !HAVE_X_WINDOWS */ |
| 285 | |
| 286 | void |
| 287 | init_dosfns () |
| 288 | { |
| 289 | union REGS regs; |
| 290 | _go32_dpmi_registers dpmiregs; |
| 291 | unsigned long xbuf = _go32_info_block.linear_address_of_transfer_buffer; |
| 292 | |
| 293 | #ifndef SYSTEM_MALLOC |
| 294 | get_lim_data (); /* why the hell isn't this called elsewhere? */ |
| 295 | #endif |
| 296 | |
| 297 | regs.x.ax = 0x3000; |
| 298 | intdos (®s, ®s); |
| 299 | Vdos_version = Fcons (make_number (regs.h.al), make_number (regs.h.ah)); |
| 300 | |
| 301 | /* Obtain the country code via DPMI, use DJGPP transfer buffer. */ |
| 302 | dpmiregs.x.ax = 0x3800; |
| 303 | dpmiregs.x.ds = xbuf >> 4; |
| 304 | dpmiregs.x.dx = 0; |
| 305 | dpmiregs.x.ss = dpmiregs.x.sp = dpmiregs.x.flags = 0; |
| 306 | _go32_dpmi_simulate_int (0x21, &dpmiregs); |
| 307 | if (dpmiregs.x.flags & 1) |
| 308 | { |
| 309 | dos_country_code = 1; /* assume USA if 213800 failed */ |
| 310 | memcpy (dos_country_info, usa_country_info, DOS_COUNTRY_INFO); |
| 311 | } |
| 312 | else |
| 313 | { |
| 314 | dos_country_code = dpmiregs.x.bx; |
| 315 | dosmemget (xbuf, DOS_COUNTRY_INFO, dos_country_info); |
| 316 | } |
| 317 | |
| 318 | dos_set_keyboard (dos_country_code, 0); |
| 319 | |
| 320 | regs.x.ax = 0x6601; |
| 321 | intdos (®s, ®s); |
| 322 | if (regs.x.cflag) |
| 323 | /* Estimate code page from country code */ |
| 324 | switch (dos_country_code) |
| 325 | { |
| 326 | case 45: /* Denmark */ |
| 327 | case 47: /* Norway */ |
| 328 | dos_codepage = 865; |
| 329 | break; |
| 330 | default: |
| 331 | /* US */ |
| 332 | dos_codepage = 437; |
| 333 | } |
| 334 | else |
| 335 | dos_codepage = regs.x.bx & 0xffff; |
| 336 | |
| 337 | #ifndef HAVE_X_WINDOWS |
| 338 | parent_vm_title[0] = '\0'; |
| 339 | |
| 340 | /* If we are running from DOS box on MS-Windows, get Windows version. */ |
| 341 | dpmiregs.x.ax = 0x1600; /* enhanced mode installation check */ |
| 342 | dpmiregs.x.ss = dpmiregs.x.sp = dpmiregs.x.flags = 0; |
| 343 | _go32_dpmi_simulate_int (0x2f, &dpmiregs); |
| 344 | /* We only support Windows-specific features when we run on Windows 9X |
| 345 | or on Windows 3.X/enhanced mode. |
| 346 | |
| 347 | Int 2Fh/AX=1600h returns: |
| 348 | |
| 349 | AL = 00: no Windows at all; |
| 350 | AL = 01: Windows/386 2.x; |
| 351 | AL = 80h: Windows 3.x in mode other than enhanced; |
| 352 | AL = FFh: Windows/386 2.x |
| 353 | |
| 354 | We also check AH > 0 (Windows 3.1 or later), in case AL tricks us. */ |
| 355 | if (dpmiregs.h.al > 2 && dpmiregs.h.al != 0x80 && dpmiregs.h.al != 0xff |
| 356 | && (dpmiregs.h.al > 3 || dpmiregs.h.ah > 0)) |
| 357 | { |
| 358 | dos_windows_version = dpmiregs.x.ax; |
| 359 | Vdos_windows_version = |
| 360 | Fcons (make_number (dpmiregs.h.al), make_number (dpmiregs.h.ah)); |
| 361 | |
| 362 | /* Save the current title of this virtual machine, so we can restore |
| 363 | it before exiting. Otherwise, Windows 95 will continue to use |
| 364 | the title we set even after we are history, stupido... */ |
| 365 | if (dpmiregs.h.al >= 4) |
| 366 | { |
| 367 | dpmiregs.x.ax = 0x168e; |
| 368 | dpmiregs.x.dx = 3; /* get VM title */ |
| 369 | dpmiregs.x.cx = sizeof(parent_vm_title) - 1; |
| 370 | dpmiregs.x.es = __tb >> 4; |
| 371 | dpmiregs.x.di = __tb & 15; |
| 372 | dpmiregs.x.sp = dpmiregs.x.ss = dpmiregs.x.flags = 0; |
| 373 | _go32_dpmi_simulate_int (0x2f, &dpmiregs); |
| 374 | if (dpmiregs.x.ax == 1) |
| 375 | dosmemget (__tb, sizeof(parent_vm_title), parent_vm_title); |
| 376 | } |
| 377 | } |
| 378 | else |
| 379 | { |
| 380 | dos_windows_version = 0; |
| 381 | Vdos_windows_version = Qnil; |
| 382 | } |
| 383 | #endif /* !HAVE_X_WINDOWS */ |
| 384 | |
| 385 | #if __DJGPP__ >= 2 |
| 386 | |
| 387 | /* Without this, we never see hidden files. |
| 388 | Don't OR it with the previous value, so the value recorded at dump |
| 389 | time, possibly with `preserve-case' flags set, won't get through. */ |
| 390 | __opendir_flags = __OPENDIR_FIND_HIDDEN; |
| 391 | |
| 392 | #if __DJGPP_MINOR__ == 0 |
| 393 | /* Under LFN, preserve the case of files as recorded in the directory |
| 394 | (in DJGPP 2.01 and later this is automagically done by the library). */ |
| 395 | if (!NILP (Fmsdos_long_file_names ())) |
| 396 | __opendir_flags |= __OPENDIR_PRESERVE_CASE; |
| 397 | #endif /* __DJGPP_MINOR__ == 0 */ |
| 398 | #endif /* __DJGPP__ >= 2 */ |
| 399 | } |
| 400 | \f |
| 401 | #ifndef HAVE_X_WINDOWS |
| 402 | |
| 403 | /* Emulation of some X window features from xfns.c and xfaces.c. */ |
| 404 | |
| 405 | /* Standard VGA colors, in the order of their standard numbering |
| 406 | in the default VGA palette. */ |
| 407 | static char *vga_colors[16] = { |
| 408 | "black", "blue", "green", "cyan", "red", "magenta", "brown", |
| 409 | "lightgray", "darkgray", "lightblue", "lightgreen", "lightcyan", |
| 410 | "lightred", "lightmagenta", "yellow", "white" |
| 411 | }; |
| 412 | |
| 413 | /* Given a color name, return its index, or -1 if not found. Note |
| 414 | that this only performs case-insensitive comparison against the |
| 415 | standard names. For anything more sophisticated, like matching |
| 416 | "gray" with "grey" or translating X color names into their MSDOS |
| 417 | equivalents, call the Lisp function Qtty_color_desc (defined |
| 418 | on lisp/term/tty-colors.el). */ |
| 419 | int |
| 420 | msdos_stdcolor_idx (const char *name) |
| 421 | { |
| 422 | int i; |
| 423 | |
| 424 | for (i = 0; i < sizeof (vga_colors) / sizeof (vga_colors[0]); i++) |
| 425 | if (strcasecmp (name, vga_colors[i]) == 0) |
| 426 | return i; |
| 427 | |
| 428 | return |
| 429 | strcmp (name, unspecified_fg) == 0 ? FACE_TTY_DEFAULT_FG_COLOR |
| 430 | : strcmp (name, unspecified_bg) == 0 ? FACE_TTY_DEFAULT_BG_COLOR |
| 431 | : FACE_TTY_DEFAULT_COLOR; |
| 432 | } |
| 433 | |
| 434 | /* Given a color index, return its standard name. */ |
| 435 | Lisp_Object |
| 436 | msdos_stdcolor_name (int idx) |
| 437 | { |
| 438 | extern Lisp_Object Qunspecified; |
| 439 | |
| 440 | if (idx == FACE_TTY_DEFAULT_FG_COLOR) |
| 441 | return build_string (unspecified_fg); |
| 442 | else if (idx == FACE_TTY_DEFAULT_BG_COLOR) |
| 443 | return build_string (unspecified_bg); |
| 444 | else if (idx >= 0 && idx < sizeof (vga_colors) / sizeof (vga_colors[0])) |
| 445 | return build_string (vga_colors[idx]); |
| 446 | else |
| 447 | return Qunspecified; /* meaning the default */ |
| 448 | } |
| 449 | |
| 450 | /* Support for features that are available when we run in a DOS box |
| 451 | on MS-Windows. */ |
| 452 | int |
| 453 | ms_windows_version (void) |
| 454 | { |
| 455 | return dos_windows_version; |
| 456 | } |
| 457 | |
| 458 | /* Set the title of the current virtual machine, to appear on |
| 459 | the caption bar of that machine's window. */ |
| 460 | |
| 461 | int |
| 462 | w95_set_virtual_machine_title (const char *title_string) |
| 463 | { |
| 464 | /* Only Windows 9X (version 4 and higher) support this function. */ |
| 465 | if (!NILP (Vdos_windows_version) |
| 466 | && (dos_windows_version & 0xff) >= 4) |
| 467 | { |
| 468 | _go32_dpmi_registers regs; |
| 469 | dosmemput (title_string, strlen (title_string) + 1, __tb); |
| 470 | regs.x.ax = 0x168e; |
| 471 | regs.x.dx = 1; |
| 472 | regs.x.es = __tb >> 4; |
| 473 | regs.x.di = __tb & 15; |
| 474 | regs.x.sp = regs.x.ss = regs.x.flags = 0; |
| 475 | _go32_dpmi_simulate_int (0x2f, ®s); |
| 476 | return regs.x.ax == 1; |
| 477 | } |
| 478 | return 0; |
| 479 | } |
| 480 | |
| 481 | /* Change the title of frame F to NAME. |
| 482 | If NAME is nil, use the frame name as the title. |
| 483 | |
| 484 | If Emacs is not run from a DOS box on Windows 9X, this only |
| 485 | sets the name in the frame struct, but has no other effects. */ |
| 486 | |
| 487 | void |
| 488 | x_set_title (f, name) |
| 489 | struct frame *f; |
| 490 | Lisp_Object name; |
| 491 | { |
| 492 | /* Don't change the title if it's already NAME. */ |
| 493 | if (EQ (name, f->title)) |
| 494 | return; |
| 495 | |
| 496 | update_mode_lines = 1; |
| 497 | |
| 498 | f->title = name; |
| 499 | |
| 500 | if (NILP (name)) |
| 501 | name = f->name; |
| 502 | |
| 503 | if (FRAME_MSDOS_P (f)) |
| 504 | { |
| 505 | BLOCK_INPUT; |
| 506 | w95_set_virtual_machine_title (SDATA (name)); |
| 507 | UNBLOCK_INPUT; |
| 508 | } |
| 509 | } |
| 510 | #endif /* !HAVE_X_WINDOWS */ |
| 511 | \f |
| 512 | DEFUN ("file-system-info", Ffile_system_info, Sfile_system_info, 1, 1, 0, |
| 513 | doc: /* Return storage information about the file system FILENAME is on. |
| 514 | Value is a list of floats (TOTAL FREE AVAIL), where TOTAL is the total |
| 515 | storage of the file system, FREE is the free storage, and AVAIL is the |
| 516 | storage available to a non-superuser. All 3 numbers are in bytes. |
| 517 | If the underlying system call fails, value is nil. */) |
| 518 | (filename) |
| 519 | Lisp_Object filename; |
| 520 | { |
| 521 | struct statfs stfs; |
| 522 | Lisp_Object encoded, value; |
| 523 | |
| 524 | CHECK_STRING (filename); |
| 525 | filename = Fexpand_file_name (filename, Qnil); |
| 526 | encoded = ENCODE_FILE (filename); |
| 527 | |
| 528 | if (statfs (SDATA (encoded), &stfs)) |
| 529 | value = Qnil; |
| 530 | else |
| 531 | value = list3 (make_float ((double) stfs.f_bsize * stfs.f_blocks), |
| 532 | make_float ((double) stfs.f_bsize * stfs.f_bfree), |
| 533 | make_float ((double) stfs.f_bsize * stfs.f_bavail)); |
| 534 | |
| 535 | return value; |
| 536 | } |
| 537 | \f |
| 538 | void |
| 539 | dos_cleanup (void) |
| 540 | { |
| 541 | #ifndef HAVE_X_WINDOWS |
| 542 | restore_parent_vm_title (); |
| 543 | #endif |
| 544 | /* Make sure the termscript file is committed, in case we are |
| 545 | crashing and some vital info was written there. */ |
| 546 | if (termscript) |
| 547 | { |
| 548 | fflush (termscript); |
| 549 | fsync (fileno (termscript)); |
| 550 | } |
| 551 | } |
| 552 | |
| 553 | /* |
| 554 | * Define everything |
| 555 | */ |
| 556 | syms_of_dosfns () |
| 557 | { |
| 558 | defsubr (&Sint86); |
| 559 | defsubr (&Sdos_memget); |
| 560 | defsubr (&Sdos_memput); |
| 561 | defsubr (&Smsdos_mouse_init); |
| 562 | defsubr (&Smsdos_mouse_enable); |
| 563 | defsubr (&Smsdos_set_keyboard); |
| 564 | defsubr (&Sinsert_startup_screen); |
| 565 | defsubr (&Smsdos_mouse_disable); |
| 566 | defsubr (&Sfile_system_info); |
| 567 | #ifndef HAVE_X_WINDOWS |
| 568 | defsubr (&Smsdos_mouse_p); |
| 569 | #endif |
| 570 | |
| 571 | DEFVAR_INT ("dos-country-code", &dos_country_code, |
| 572 | doc: /* The country code returned by Dos when Emacs was started. |
| 573 | Usually this is the international telephone prefix. */); |
| 574 | |
| 575 | DEFVAR_INT ("dos-codepage", &dos_codepage, |
| 576 | doc: /* The codepage active when Emacs was started. |
| 577 | The following are known: |
| 578 | 437 United States |
| 579 | 850 Multilingual (Latin I) |
| 580 | 852 Slavic (Latin II) |
| 581 | 857 Turkish |
| 582 | 860 Portugal |
| 583 | 861 Iceland |
| 584 | 863 Canada (French) |
| 585 | 865 Norway/Denmark */); |
| 586 | |
| 587 | DEFVAR_INT ("dos-timezone-offset", &dos_timezone_offset, |
| 588 | doc: /* The current timezone offset to UTC in minutes. |
| 589 | Implicitly modified when the TZ variable is changed. */); |
| 590 | |
| 591 | DEFVAR_LISP ("dos-version", &Vdos_version, |
| 592 | doc: /* The (MAJOR . MINOR) Dos version (subject to modification with setver). */); |
| 593 | |
| 594 | #ifndef HAVE_X_WINDOWS |
| 595 | DEFVAR_LISP ("dos-windows-version", &Vdos_windows_version, |
| 596 | doc: /* The (MAJOR . MINOR) Windows version for DOS session on MS-Windows. */); |
| 597 | #endif |
| 598 | |
| 599 | DEFVAR_LISP ("dos-display-scancodes", &Vdos_display_scancodes, |
| 600 | doc: /* *Controls whether DOS raw keyboard events are displayed as you type. |
| 601 | When non-nil, the keyboard scan-codes are displayed at the bottom right |
| 602 | corner of the display (typically at the end of the mode line). |
| 603 | The output format is: scan code:char code*modifiers. */); |
| 604 | |
| 605 | Vdos_display_scancodes = Qnil; |
| 606 | |
| 607 | DEFVAR_INT ("dos-hyper-key", &dos_hyper_key, |
| 608 | doc: /* *If set to 1, use right ALT key as hyper key. |
| 609 | If set to 2, use right CTRL key as hyper key. */); |
| 610 | dos_hyper_key = 0; |
| 611 | |
| 612 | DEFVAR_INT ("dos-super-key", &dos_super_key, |
| 613 | doc: /* *If set to 1, use right ALT key as super key. |
| 614 | If set to 2, use right CTRL key as super key. */); |
| 615 | dos_super_key = 0; |
| 616 | |
| 617 | DEFVAR_INT ("dos-keypad-mode", &dos_keypad_mode, |
| 618 | doc: /* *Controls what key code is returned by a key in the numeric keypad. |
| 619 | The `numlock ON' action is only taken if no modifier keys are pressed. |
| 620 | The value is an integer constructed by adding the following bits together: |
| 621 | |
| 622 | 0x00 Digit key returns digit (if numlock ON) |
| 623 | 0x01 Digit key returns kp-digit (if numlock ON) |
| 624 | 0x02 Digit key returns M-digit (if numlock ON) |
| 625 | 0x03 Digit key returns edit key (if numlock ON) |
| 626 | |
| 627 | 0x00 Grey key returns char (if numlock ON) |
| 628 | 0x04 Grey key returns kp-key (if numlock ON) |
| 629 | |
| 630 | 0x00 Digit key returns digit (if numlock OFF) |
| 631 | 0x10 Digit key returns kp-digit (if numlock OFF) |
| 632 | 0x20 Digit key returns M-digit (if numlock OFF) |
| 633 | 0x30 Digit key returns edit key (if numlock OFF) |
| 634 | |
| 635 | 0x00 Grey key returns char (if numlock OFF) |
| 636 | 0x40 Grey key returns kp-key (if numlock OFF) |
| 637 | |
| 638 | 0x200 ALT-0..ALT-9 in top-row produces shifted codes. */); |
| 639 | dos_keypad_mode = 0x75; |
| 640 | |
| 641 | DEFVAR_INT ("dos-keyboard-layout", &dos_keyboard_layout, |
| 642 | doc: /* Contains the country code for the current keyboard layout. |
| 643 | Use msdos-set-keyboard to select another keyboard layout. */); |
| 644 | dos_keyboard_layout = 1; /* US */ |
| 645 | |
| 646 | DEFVAR_INT ("dos-decimal-point", &dos_decimal_point, |
| 647 | doc: /* The character to produce when kp-decimal key is pressed. |
| 648 | If non-zero, this variable contains the character to be returned when the |
| 649 | decimal point key in the numeric keypad is pressed when Num Lock is on. |
| 650 | If zero, the decimal point key returns the country code specific value. */); |
| 651 | dos_decimal_point = 0; |
| 652 | } |
| 653 | #endif /* MSDOS */ |
| 654 | |
| 655 | /* arch-tag: f5ea8847-a014-42c9-83f5-7738ad640b17 |
| 656 | (do not change this comment) */ |