util/grub-mklayout.c

   1 /*
   2  *  GRUB  --  GRand Unified Bootloader
   3  *  Copyright (C) 2010 Free Software Foundation, Inc.
   4  *
   5  *  GRUB is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  GRUB is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #include <config.h>
  20
  21 #include <grub/util/misc.h>
  22 #include <grub/i18n.h>
  23 #include <grub/term.h>
  24 #include <grub/keyboard_layouts.h>
  25
  26 #define _GNU_SOURCE     1
  27
  28 #include <stdio.h>
  29 #include <stdlib.h>
  30 #include <string.h>
  31 #include <argp.h>
  32 #include <unistd.h>
  33 #include <errno.h>
  34
  35 #include "progname.h"
  36
  37 struct arguments
  38 {
  39   char *input;
  40   char *output;
  41   int verbosity;
  42 };
  43
  44 static struct argp_option options[] = {
  45   {"input",  'i', N_("FILE"), 0,
  46    N_("set input filename. Default is STDIN"), 0},
  47   {"output",  'o', N_("FILE"), 0,
  48    N_("set output filename. Default is STDOUT"), 0},
  49   {"verbose",     'v', 0,      0, N_("print verbose messages."), 0},
  50   { 0, 0, 0, 0, 0, 0 }
  51 };
  52
  53 struct console_grub_equivalence
  54 {
  55   const char *layout;
  56   grub_uint32_t grub;
  57 };
  58
  59 static struct console_grub_equivalence console_grub_equivalences_shift[] = {
  60   {"KP_0", '0'},
  61   {"KP_1", '1'},
  62   {"KP_2", '2'},
  63   {"KP_3", '3'},
  64   {"KP_4", '4'},
  65   {"KP_5", '5'},
  66   {"KP_6", '6'},
  67   {"KP_7", '7'},
  68   {"KP_8", '8'},
  69   {"KP_9", '9'},
  70   {"KP_Period", '.'},
  71
  72   {NULL, '\0'}
  73 };
  74
  75 static struct console_grub_equivalence console_grub_equivalences_unshift[] = {
  76   {"KP_0", GRUB_TERM_KEY_INSERT},
  77   {"KP_1", GRUB_TERM_KEY_END},
  78   {"KP_2", GRUB_TERM_KEY_DOWN},
  79   {"KP_3", GRUB_TERM_KEY_NPAGE},
  80   {"KP_4", GRUB_TERM_KEY_LEFT},
  81   {"KP_5", GRUB_TERM_KEY_CENTER},
  82   {"KP_6", GRUB_TERM_KEY_RIGHT},
  83   {"KP_7", GRUB_TERM_KEY_HOME},
  84   {"KP_8", GRUB_TERM_KEY_UP},
  85   {"KP_9", GRUB_TERM_KEY_PPAGE},
  86   {"KP_Period", GRUB_TERM_KEY_DC},
  87
  88   {NULL, '\0'}
  89 };
  90
  91 static struct console_grub_equivalence console_grub_equivalences_common[] = {
  92   {"Escape", GRUB_TERM_ESC},
  93   {"Tab", GRUB_TERM_TAB},
  94   {"Delete", GRUB_TERM_BACKSPACE},
  95
  96   {"KP_Enter", '\n'},
  97   {"Return", '\n'},
  98
  99   {"KP_Multiply", '*'},
 100   {"KP_Subtract", '-'},
 101   {"KP_Add", '+'},
 102   {"KP_Divide", '/'},
 103
 104   {"F1", GRUB_TERM_KEY_F1},
 105   {"F2", GRUB_TERM_KEY_F2},
 106   {"F3", GRUB_TERM_KEY_F3},
 107   {"F4", GRUB_TERM_KEY_F4},
 108   {"F5", GRUB_TERM_KEY_F5},
 109   {"F6", GRUB_TERM_KEY_F6},
 110   {"F7", GRUB_TERM_KEY_F7},
 111   {"F8", GRUB_TERM_KEY_F8},
 112   {"F9", GRUB_TERM_KEY_F9},
 113   {"F10", GRUB_TERM_KEY_F10},
 114   {"F11", GRUB_TERM_KEY_F11},
 115   {"F12", GRUB_TERM_KEY_F12},
 116   {"F13", GRUB_TERM_KEY_F1 | GRUB_TERM_SHIFT},
 117   {"F14", GRUB_TERM_KEY_F2 | GRUB_TERM_SHIFT},
 118   {"F15", GRUB_TERM_KEY_F3 | GRUB_TERM_SHIFT},
 119   {"F16", GRUB_TERM_KEY_F4 | GRUB_TERM_SHIFT},
 120   {"F17", GRUB_TERM_KEY_F5 | GRUB_TERM_SHIFT},
 121   {"F18", GRUB_TERM_KEY_F6 | GRUB_TERM_SHIFT},
 122   {"F19", GRUB_TERM_KEY_F7 | GRUB_TERM_SHIFT},
 123   {"F20", GRUB_TERM_KEY_F8 | GRUB_TERM_SHIFT},
 124   {"F21", GRUB_TERM_KEY_F9 | GRUB_TERM_SHIFT},
 125   {"F22", GRUB_TERM_KEY_F10 | GRUB_TERM_SHIFT},
 126   {"F23", GRUB_TERM_KEY_F11 | GRUB_TERM_SHIFT},
 127   {"F24", GRUB_TERM_KEY_F12 | GRUB_TERM_SHIFT},
 128   {"Console_13", GRUB_TERM_KEY_F1 | GRUB_TERM_ALT},
 129   {"Console_14", GRUB_TERM_KEY_F2 | GRUB_TERM_ALT},
 130   {"Console_15", GRUB_TERM_KEY_F3 | GRUB_TERM_ALT},
 131   {"Console_16", GRUB_TERM_KEY_F4 | GRUB_TERM_ALT},
 132   {"Console_17", GRUB_TERM_KEY_F5 | GRUB_TERM_ALT},
 133   {"Console_18", GRUB_TERM_KEY_F6 | GRUB_TERM_ALT},
 134   {"Console_19", GRUB_TERM_KEY_F7 | GRUB_TERM_ALT},
 135   {"Console_20", GRUB_TERM_KEY_F8 | GRUB_TERM_ALT},
 136   {"Console_21", GRUB_TERM_KEY_F9 | GRUB_TERM_ALT},
 137   {"Console_22", GRUB_TERM_KEY_F10 | GRUB_TERM_ALT},
 138   {"Console_23", GRUB_TERM_KEY_F11 | GRUB_TERM_ALT},
 139   {"Console_24", GRUB_TERM_KEY_F12 | GRUB_TERM_ALT},
 140   {"Console_25", GRUB_TERM_KEY_F1 | GRUB_TERM_SHIFT | GRUB_TERM_ALT},
 141   {"Console_26", GRUB_TERM_KEY_F2 | GRUB_TERM_SHIFT | GRUB_TERM_ALT},
 142   {"Console_27", GRUB_TERM_KEY_F3 | GRUB_TERM_SHIFT | GRUB_TERM_ALT},
 143   {"Console_28", GRUB_TERM_KEY_F4 | GRUB_TERM_SHIFT | GRUB_TERM_ALT},
 144   {"Console_29", GRUB_TERM_KEY_F5 | GRUB_TERM_SHIFT | GRUB_TERM_ALT},
 145   {"Console_30", GRUB_TERM_KEY_F6 | GRUB_TERM_SHIFT | GRUB_TERM_ALT},
 146   {"Console_31", GRUB_TERM_KEY_F7 | GRUB_TERM_SHIFT | GRUB_TERM_ALT},
 147   {"Console_32", GRUB_TERM_KEY_F8 | GRUB_TERM_SHIFT | GRUB_TERM_ALT},
 148   {"Console_33", GRUB_TERM_KEY_F9 | GRUB_TERM_SHIFT | GRUB_TERM_ALT},
 149   {"Console_34", GRUB_TERM_KEY_F10 | GRUB_TERM_SHIFT | GRUB_TERM_ALT},
 150   {"Console_35", GRUB_TERM_KEY_F11 | GRUB_TERM_SHIFT | GRUB_TERM_ALT},
 151   {"Console_36", GRUB_TERM_KEY_F12 | GRUB_TERM_SHIFT | GRUB_TERM_ALT},
 152
 153   {"Insert", GRUB_TERM_KEY_INSERT},
 154   {"Down", GRUB_TERM_KEY_DOWN},
 155   {"Up", GRUB_TERM_KEY_UP},
 156   {"Home", GRUB_TERM_KEY_HOME},
 157   {"End", GRUB_TERM_KEY_END},
 158   {"Right", GRUB_TERM_KEY_RIGHT},
 159   {"Left", GRUB_TERM_KEY_LEFT},
 160   {"Next", GRUB_TERM_KEY_NPAGE},
 161   {"Prior", GRUB_TERM_KEY_PPAGE},
 162   {"Remove", GRUB_TERM_KEY_DC},
 163   {"VoidSymbol", 0},
 164
 165   /* "Undead" keys since no dead key support in GRUB.  */
 166   {"dead_acute", '\''},
 167   {"dead_circumflex", '^'},
 168   {"dead_grave", '`'},
 169   {"dead_tilde", '~'},
 170   {"dead_diaeresis", '"'},
 171
 172   /* Following ones don't provide any useful symbols for shell.  */
 173   {"dead_cedilla", 0},
 174   {"dead_ogonek", 0},
 175   {"dead_caron", 0},
 176   {"dead_breve", 0},
 177   {"dead_doubleacute", 0},
 178
 179   /* Unused in GRUB.  */
 180   {"Pause", 0},
 181   {"Scroll_Forward", 0},
 182   {"Scroll_Backward", 0},
 183   {"Hex_0", 0},
 184   {"Hex_1", 0},
 185   {"Hex_2", 0},
 186   {"Hex_3", 0},
 187   {"Hex_4", 0},
 188   {"Hex_5", 0},
 189   {"Hex_6", 0},
 190   {"Hex_7", 0},
 191   {"Hex_8", 0},
 192   {"Hex_9", 0},
 193   {"Hex_A", 0},
 194   {"Hex_B", 0},
 195   {"Hex_C", 0},
 196   {"Hex_D", 0},
 197   {"Hex_E", 0},
 198   {"Hex_F", 0},
 199   {"Scroll_Lock", 0},
 200   {"Show_Memory", 0},
 201   {"Show_Registers", 0},
 202   {"Control_backslash", 0},
 203   {"Compose", 0},
 204
 205   {NULL, '\0'}
 206 };
 207
 208 static grub_uint8_t linux_to_usb_map[128] = {
 209   /* 0x00 */ 0 /* Unused  */,               GRUB_KEYBOARD_KEY_ESCAPE,
 210   /* 0x02 */ GRUB_KEYBOARD_KEY_1,           GRUB_KEYBOARD_KEY_2,
 211   /* 0x04 */ GRUB_KEYBOARD_KEY_3,           GRUB_KEYBOARD_KEY_4,
 212   /* 0x06 */ GRUB_KEYBOARD_KEY_5,           GRUB_KEYBOARD_KEY_6,
 213   /* 0x08 */ GRUB_KEYBOARD_KEY_7,           GRUB_KEYBOARD_KEY_8,
 214   /* 0x0a */ GRUB_KEYBOARD_KEY_9,           GRUB_KEYBOARD_KEY_0,
 215   /* 0x0c */ GRUB_KEYBOARD_KEY_DASH,        GRUB_KEYBOARD_KEY_EQUAL,
 216   /* 0x0e */ GRUB_KEYBOARD_KEY_BACKSPACE,   GRUB_KEYBOARD_KEY_TAB,
 217   /* 0x10 */ GRUB_KEYBOARD_KEY_Q,           GRUB_KEYBOARD_KEY_W,
 218   /* 0x12 */ GRUB_KEYBOARD_KEY_E,           GRUB_KEYBOARD_KEY_R,
 219   /* 0x14 */ GRUB_KEYBOARD_KEY_T,           GRUB_KEYBOARD_KEY_Y,
 220   /* 0x16 */ GRUB_KEYBOARD_KEY_U,           GRUB_KEYBOARD_KEY_I,
 221   /* 0x18 */ GRUB_KEYBOARD_KEY_O,           GRUB_KEYBOARD_KEY_P,
 222   /* 0x1a */ GRUB_KEYBOARD_KEY_LBRACKET,    GRUB_KEYBOARD_KEY_RBRACKET,
 223   /* 0x1c */ GRUB_KEYBOARD_KEY_ENTER,       GRUB_KEYBOARD_KEY_LEFT_CTRL,
 224   /* 0x1e */ GRUB_KEYBOARD_KEY_A,           GRUB_KEYBOARD_KEY_S,
 225   /* 0x20 */ GRUB_KEYBOARD_KEY_D,           GRUB_KEYBOARD_KEY_F,
 226   /* 0x22 */ GRUB_KEYBOARD_KEY_G,           GRUB_KEYBOARD_KEY_H,
 227   /* 0x24 */ GRUB_KEYBOARD_KEY_J,           GRUB_KEYBOARD_KEY_K,
 228   /* 0x26 */ GRUB_KEYBOARD_KEY_L,           GRUB_KEYBOARD_KEY_SEMICOLON,
 229   /* 0x28 */ GRUB_KEYBOARD_KEY_DQUOTE,      GRUB_KEYBOARD_KEY_RQUOTE,
 230   /* 0x2a */ GRUB_KEYBOARD_KEY_LEFT_SHIFT,  GRUB_KEYBOARD_KEY_BACKSLASH,
 231   /* 0x2c */ GRUB_KEYBOARD_KEY_Z,           GRUB_KEYBOARD_KEY_X,
 232   /* 0x2e */ GRUB_KEYBOARD_KEY_C,           GRUB_KEYBOARD_KEY_V,
 233   /* 0x30 */ GRUB_KEYBOARD_KEY_B,           GRUB_KEYBOARD_KEY_N,
 234   /* 0x32 */ GRUB_KEYBOARD_KEY_M,           GRUB_KEYBOARD_KEY_COMMA,
 235   /* 0x34 */ GRUB_KEYBOARD_KEY_DOT,         GRUB_KEYBOARD_KEY_SLASH,
 236   /* 0x36 */ GRUB_KEYBOARD_KEY_RIGHT_SHIFT, GRUB_KEYBOARD_KEY_NUMMUL,
 237   /* 0x38 */ GRUB_KEYBOARD_KEY_LEFT_ALT,    GRUB_KEYBOARD_KEY_SPACE,
 238   /* 0x3a */ GRUB_KEYBOARD_KEY_CAPS_LOCK,   GRUB_KEYBOARD_KEY_F1,
 239   /* 0x3c */ GRUB_KEYBOARD_KEY_F2,          GRUB_KEYBOARD_KEY_F3,
 240   /* 0x3e */ GRUB_KEYBOARD_KEY_F4,          GRUB_KEYBOARD_KEY_F5,
 241   /* 0x40 */ GRUB_KEYBOARD_KEY_F6,          GRUB_KEYBOARD_KEY_F7,
 242   /* 0x42 */ GRUB_KEYBOARD_KEY_F8,          GRUB_KEYBOARD_KEY_F9,
 243   /* 0x44 */ GRUB_KEYBOARD_KEY_F10,         GRUB_KEYBOARD_KEY_NUM_LOCK,
 244   /* 0x46 */ GRUB_KEYBOARD_KEY_SCROLL_LOCK, GRUB_KEYBOARD_KEY_NUM7,
 245   /* 0x48 */ GRUB_KEYBOARD_KEY_NUM8,        GRUB_KEYBOARD_KEY_NUM9,
 246   /* 0x4a */ GRUB_KEYBOARD_KEY_NUMMINUS,    GRUB_KEYBOARD_KEY_NUM4,
 247   /* 0x4c */ GRUB_KEYBOARD_KEY_NUM5,        GRUB_KEYBOARD_KEY_NUM6,
 248   /* 0x4e */ GRUB_KEYBOARD_KEY_NUMPLUS,     GRUB_KEYBOARD_KEY_NUM1,
 249   /* 0x50 */ GRUB_KEYBOARD_KEY_NUM2,        GRUB_KEYBOARD_KEY_NUM3,
 250   /* 0x52 */ GRUB_KEYBOARD_KEY_NUMDOT,      GRUB_KEYBOARD_KEY_NUMDOT,
 251   /* 0x54 */ 0,                             0,
 252   /* 0x56 */ GRUB_KEYBOARD_KEY_102ND,       GRUB_KEYBOARD_KEY_F11,
 253   /* 0x58 */ GRUB_KEYBOARD_KEY_F12,         0,
 254   /* 0x5a */ 0,                             0,
 255   /* 0x5c */ 0,                             0,
 256   /* 0x5e */ 0,                             0,
 257   /* 0x60 */ GRUB_KEYBOARD_KEY_NUMENTER,    GRUB_KEYBOARD_KEY_RIGHT_CTRL,
 258   /* 0x62 */ GRUB_KEYBOARD_KEY_NUMSLASH,    0,
 259   /* 0x64 */ GRUB_KEYBOARD_KEY_RIGHT_ALT,   0,
 260   /* 0x66 */ GRUB_KEYBOARD_KEY_HOME,        GRUB_KEYBOARD_KEY_UP,
 261   /* 0x68 */ GRUB_KEYBOARD_KEY_PPAGE,       GRUB_KEYBOARD_KEY_LEFT,
 262   /* 0x6a */ GRUB_KEYBOARD_KEY_RIGHT,       GRUB_KEYBOARD_KEY_END,
 263   /* 0x6c */ GRUB_KEYBOARD_KEY_DOWN,        GRUB_KEYBOARD_KEY_NPAGE,
 264   /* 0x6e */ GRUB_KEYBOARD_KEY_INSERT,      GRUB_KEYBOARD_KEY_DELETE
 265 };
 266
 267 static void
 268 add_special_keys (struct grub_keyboard_layout *layout)
 269 {
 270   (void) layout;
 271 }
 272
 273 static unsigned
 274 lookup (char *code, int shift)
 275 {
 276   int i;
 277   struct console_grub_equivalence *pr;
 278
 279   if (shift)
 280     pr = console_grub_equivalences_shift;
 281   else
 282     pr =  console_grub_equivalences_unshift;
 283
 284   for (i = 0; pr[i].layout != NULL; i++)
 285     if (strcmp (code, pr[i].layout) == 0)
 286       return pr[i].grub;
 287
 288   for (i = 0; console_grub_equivalences_common[i].layout != NULL; i++)
 289     if (strcmp (code, console_grub_equivalences_common[i].layout) == 0)
 290       return console_grub_equivalences_common[i].grub;
 291
 292   /* TRANSLATORS: scan identifier is keyboard key symbolic name.  */
 293   fprintf (stderr, _("Unknown keyboard scan identifier %s\n"), code);
 294
 295   return '\0';
 296 }
 297
 298 static unsigned int
 299 get_grub_code (char *layout_code, int shift)
 300 {
 301   unsigned int code;
 302
 303   if (strncmp (layout_code, "U+", sizeof ("U+") - 1) == 0)
 304     sscanf (layout_code, "U+%x", &code);
 305   else if (strncmp (layout_code, "+U+", sizeof ("+U+") - 1) == 0)
 306     sscanf (layout_code, "+U+%x", &code);
 307   else
 308     code = lookup (layout_code, shift);
 309   return code;
 310 }
 311
 312 static void
 313 write_file (FILE *out, struct grub_keyboard_layout *layout)
 314 {
 315   grub_uint32_t version;
 316   unsigned i;
 317
 318   version = grub_cpu_to_le32 (GRUB_KEYBOARD_LAYOUTS_VERSION);
 319
 320   for (i = 0; i < ARRAY_SIZE (layout->keyboard_map); i++)
 321     layout->keyboard_map[i] = grub_cpu_to_le32(layout->keyboard_map[i]);
 322
 323   for (i = 0; i < ARRAY_SIZE (layout->keyboard_map_shift); i++)
 324     layout->keyboard_map_shift[i]
 325       = grub_cpu_to_le32(layout->keyboard_map_shift[i]);
 326
 327   for (i = 0; i < ARRAY_SIZE (layout->keyboard_map_l3); i++)
 328     layout->keyboard_map_l3[i]
 329       = grub_cpu_to_le32(layout->keyboard_map_l3[i]);
 330
 331   for (i = 0; i < ARRAY_SIZE (layout->keyboard_map_shift_l3); i++)
 332     layout->keyboard_map_shift_l3[i]
 333       = grub_cpu_to_le32(layout->keyboard_map_shift_l3[i]);
 334
 335   fwrite (GRUB_KEYBOARD_LAYOUTS_FILEMAGIC, 1,
 336           GRUB_KEYBOARD_LAYOUTS_FILEMAGIC_SIZE, out);
 337   fwrite (&version, sizeof (version), 1, out);
 338   fwrite (layout, 1, sizeof (*layout), out);
 339 }
 340
 341 static void
 342 write_keymaps (FILE *in, FILE *out)
 343 {
 344   struct grub_keyboard_layout layout;
 345   char line[2048];
 346   int ok;
 347
 348   memset (&layout, 0, sizeof (layout));
 349
 350   /* Process the ckbcomp output and prepare the layouts.  */
 351   ok = 0;
 352   while (fgets (line, sizeof (line), in))
 353     {
 354       if (strncmp (line, "keycode", sizeof ("keycode") - 1) == 0)
 355         {
 356           unsigned keycode_linux;
 357           unsigned keycode_usb;
 358           char normal[64];
 359           char shift[64];
 360           char normalalt[64];
 361           char shiftalt[64];
 362
 363           sscanf (line, "keycode %u = %60s %60s %60s %60s", &keycode_linux,
 364                   normal, shift, normalalt, shiftalt);
 365
 366           /* Not used.  */
 367           if (keycode_linux == 0x77 /* Pause */
 368               /* Some obscure keys */
 369               || keycode_linux == 0x63 || keycode_linux == 0x7d
 370               || keycode_linux == 0x7e)
 371             continue;
 372
 373           /* Not remappable.  */
 374           if (keycode_linux == 0x1d /* Left CTRL */
 375               || keycode_linux == 0x61 /* Right CTRL */
 376               || keycode_linux == 0x2a /* Left Shift. */
 377               || keycode_linux == 0x36 /* Right Shift. */
 378               || keycode_linux == 0x38 /* Left ALT. */
 379               || keycode_linux == 0x64 /* Right ALT. */
 380               || keycode_linux == 0x3a /* CapsLock. */
 381               || keycode_linux == 0x45 /* NumLock. */
 382               || keycode_linux == 0x46 /* ScrollLock. */)
 383             continue;
 384
 385           keycode_usb = linux_to_usb_map[keycode_linux];
 386           if (keycode_usb == 0
 387               || keycode_usb >= GRUB_KEYBOARD_LAYOUTS_ARRAY_SIZE)
 388             {
 389               /* TRANSLATORS: scan code is keyboard key numeric identifier.  */
 390               fprintf (stderr, _("Unknown keyboard scan code 0x%02x\n"), keycode_linux);
 391               continue;
 392             }
 393           if (keycode_usb < GRUB_KEYBOARD_LAYOUTS_ARRAY_SIZE)
 394             {
 395               layout.keyboard_map[keycode_usb] = get_grub_code (normal, 0);
 396               layout.keyboard_map_shift[keycode_usb] = get_grub_code (shift, 1);
 397               layout.keyboard_map_l3[keycode_usb]
 398                 = get_grub_code (normalalt, 0);
 399               layout.keyboard_map_shift_l3[keycode_usb]
 400                 = get_grub_code (shiftalt, 1);
 401               ok = 1;
 402             }
 403         }
 404     }
 405
 406   if (ok == 0)
 407     {
 408       /* TRANSLATORS: this error is triggered when input doesn't contain any
 409          key descriptions.  */
 410       fprintf (stderr, "%s", _("ERROR: no valid keyboard layout found. Check the input.\n"));
 411       exit (1);
 412     }
 413
 414   add_special_keys (&layout);
 415
 416   write_file (out, &layout);
 417 }
 418
 419 static error_t
 420 argp_parser (int key, char *arg, struct argp_state *state)
 421 {
 422   /* Get the input argument from argp_parse, which we
 423      know is a pointer to our arguments structure. */
 424   struct arguments *arguments = state->input;
 425
 426   switch (key)
 427     {
 428     case 'i':
 429       arguments->input = xstrdup (arg);
 430       break;
 431
 432     case 'o':
 433       arguments->output = xstrdup (arg);
 434       break;
 435
 436     case 'v':
 437       arguments->verbosity++;
 438       break;
 439
 440     default:
 441       return ARGP_ERR_UNKNOWN;
 442     }
 443
 444   return 0;
 445 }
 446
 447 static struct argp argp = {
 448   options, argp_parser, N_("[OPTIONS]"),
 449   N_("Generate GRUB keyboard layout from Linux console one."),
 450   NULL, NULL, NULL
 451 };
 452
 453 int
 454 main (int argc, char *argv[])
 455 {
 456   FILE *in, *out;
 457   struct arguments arguments;
 458
 459   set_program_name (argv[0]);
 460
 461   /* Check for options.  */
 462   memset (&arguments, 0, sizeof (struct arguments));
 463   if (argp_parse (&argp, argc, argv, 0, 0, &arguments) != 0)
 464     {
 465       fprintf (stderr, "%s", _("Error in parsing command line arguments\n"));
 466       exit(1);
 467     }
 468
 469   if (arguments.input)
 470     in = fopen (arguments.input, "r");
 471   else
 472     in = stdin;
 473
 474   if (!in)
 475     grub_util_error (_("cannot open `%s': %s"), arguments.input ? : "stdin",
 476                      strerror (errno));
 477
 478   if (arguments.output)
 479     out = fopen (arguments.output, "wb");
 480   else
 481     out = stdout;
 482
 483   if (!out)
 484     {
 485       if (in != stdin)
 486         fclose (in);
 487       grub_util_error (_("cannot open `%s': %s"), arguments.output ? : "stdout",
 488                        strerror (errno));
 489     }
 490
 491   write_keymaps (in, out);
 492
 493   if (in != stdin)
 494     fclose (in);
 495
 496   if (out != stdout)
 497     fclose (out);
 498
 499   return 0;
 500 }