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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2002,2003,2005,2007,2008,2009 Free Software Foundation, Inc.
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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#include <grub/term.h>
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#include <grub/misc.h>
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#include <grub/time.h>
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#include <grub/keyboard_layouts.h>
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#include <grub/command.h>
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#include <grub/i18n.h>
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#include <grub/file.h>
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static struct grub_keyboard_layout layout_us = {
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/* Keyboard errors. Handled by driver. */
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/* 0x00 */ 0, 0, 0, 0,
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/* 0x04 */ 'a', 'b', 'c', 'd',
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/* 0x08 */ 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l',
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/* 0x10 */ 'm', 'n', 'o', 'p', 'q', 'r', 's', 't',
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/* 0x18 */ 'u', 'v', 'w', 'x', 'y', 'z', '1', '2',
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/* 0x20 */ '3', '4', '5', '6', '7', '8', '9', '0',
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/* 0x28 */ '\n', '\e', '\b', '\t', ' ', '-', '=', '[',
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/* According to usage table 0x31 should be mapped to '/'
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but testing with real keyboard shows that 0x32 is remapped to '/'.
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/* 0x30 */ ']', 0, '\\', ';', '\'', '`', ',', '.',
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/* 0x39 is CapsLock. Handled by driver. */
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/* 0x38 */ '/', 0, GRUB_TERM_KEY_F1, GRUB_TERM_KEY_F2,
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/* 0x3c */ GRUB_TERM_KEY_F3, GRUB_TERM_KEY_F4,
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/* 0x3e */ GRUB_TERM_KEY_F5, GRUB_TERM_KEY_F6,
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/* 0x40 */ GRUB_TERM_KEY_F7, GRUB_TERM_KEY_F8,
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/* 0x42 */ GRUB_TERM_KEY_F9, GRUB_TERM_KEY_F10,
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/* 0x44 */ GRUB_TERM_KEY_F11, GRUB_TERM_KEY_F12,
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/* PrtScr and ScrollLock. Not handled yet. */
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/* 0x48 is Pause. Not handled yet. */
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/* 0x48 */ 0, GRUB_TERM_KEY_INSERT,
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/* 0x4a */ GRUB_TERM_KEY_HOME, GRUB_TERM_KEY_PPAGE,
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/* 0x4c */ GRUB_TERM_KEY_DC, GRUB_TERM_KEY_END,
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/* 0x4e */ GRUB_TERM_KEY_NPAGE, GRUB_TERM_KEY_RIGHT,
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/* 0x50 */ GRUB_TERM_KEY_LEFT, GRUB_TERM_KEY_DOWN,
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/* 0x53 is NumLock. Handled by driver. */
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/* 0x52 */ GRUB_TERM_KEY_UP, 0,
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/* 0x58 */ '\n', GRUB_TERM_KEY_END,
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/* 0x5a */ GRUB_TERM_KEY_DOWN, GRUB_TERM_KEY_NPAGE,
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/* 0x5c */ GRUB_TERM_KEY_LEFT, GRUB_TERM_KEY_CENTER,
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/* 0x5e */ GRUB_TERM_KEY_RIGHT, GRUB_TERM_KEY_HOME,
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/* 0x60 */ GRUB_TERM_KEY_UP, GRUB_TERM_KEY_PPAGE,
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/* 0x62 */ GRUB_TERM_KEY_INSERT, GRUB_TERM_KEY_DC,
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.keyboard_map_shift = {
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/* Keyboard errors. Handled by driver. */
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/* 0x00 */ 0, 0, 0, 0,
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/* 0x04 */ 'A', 'B', 'C', 'D',
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/* 0x08 */ 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L',
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/* 0x10 */ 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T',
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/* 0x18 */ 'U', 'V', 'W', 'X', 'Y', 'Z', '!', '@',
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/* 0x20 */ '#', '$', '%', '^', '&', '*', '(', ')',
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/* 0x28 */ '\n' | GRUB_TERM_SHIFT, '\e' | GRUB_TERM_SHIFT,
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/* 0x2a */ '\b' | GRUB_TERM_SHIFT, '\t' | GRUB_TERM_SHIFT,
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/* 0x2c */ ' ' | GRUB_TERM_SHIFT, '_', '+', '{',
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/* According to usage table 0x31 should be mapped to '/'
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but testing with real keyboard shows that 0x32 is remapped to '/'.
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/* 0x30 */ '}', 0, '|', ':', '"', '~', '<', '>',
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/* 0x39 is CapsLock. Handled by driver. */
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/* 0x3a */ GRUB_TERM_KEY_F1 | GRUB_TERM_SHIFT,
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/* 0x3b */ GRUB_TERM_KEY_F2 | GRUB_TERM_SHIFT,
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/* 0x3c */ GRUB_TERM_KEY_F3 | GRUB_TERM_SHIFT,
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/* 0x3d */ GRUB_TERM_KEY_F4 | GRUB_TERM_SHIFT,
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/* 0x3e */ GRUB_TERM_KEY_F5 | GRUB_TERM_SHIFT,
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/* 0x3f */ GRUB_TERM_KEY_F6 | GRUB_TERM_SHIFT,
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/* 0x40 */ GRUB_TERM_KEY_F7 | GRUB_TERM_SHIFT,
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/* 0x41 */ GRUB_TERM_KEY_F8 | GRUB_TERM_SHIFT,
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/* 0x42 */ GRUB_TERM_KEY_F9 | GRUB_TERM_SHIFT,
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/* 0x43 */ GRUB_TERM_KEY_F10 | GRUB_TERM_SHIFT,
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/* 0x44 */ GRUB_TERM_KEY_F11 | GRUB_TERM_SHIFT,
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/* 0x45 */ GRUB_TERM_KEY_F12 | GRUB_TERM_SHIFT,
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/* PrtScr and ScrollLock. Not handled yet. */
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/* 0x48 is Pause. Not handled yet. */
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/* 0x48 */ 0, GRUB_TERM_KEY_INSERT | GRUB_TERM_SHIFT,
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/* 0x4a */ GRUB_TERM_KEY_HOME | GRUB_TERM_SHIFT,
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/* 0x4b */ GRUB_TERM_KEY_PPAGE | GRUB_TERM_SHIFT,
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/* 0x4c */ GRUB_TERM_KEY_DC | GRUB_TERM_SHIFT,
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/* 0x4d */ GRUB_TERM_KEY_END | GRUB_TERM_SHIFT,
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/* 0x4e */ GRUB_TERM_KEY_NPAGE | GRUB_TERM_SHIFT,
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/* 0x4f */ GRUB_TERM_KEY_RIGHT | GRUB_TERM_SHIFT,
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/* 0x50 */ GRUB_TERM_KEY_LEFT | GRUB_TERM_SHIFT,
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/* 0x51 */ GRUB_TERM_KEY_DOWN | GRUB_TERM_SHIFT,
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/* 0x53 is NumLock. Handled by driver. */
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/* 0x52 */ GRUB_TERM_KEY_UP | GRUB_TERM_SHIFT, 0,
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/* 0x58 */ '\n' | GRUB_TERM_SHIFT, '1', '2', '3', '4', '5','6', '7',
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/* 0x60 */ '8', '9', '0', '.', '|'
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static struct grub_keyboard_layout *grub_current_layout = &layout_us;
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map_key_core (int code, int status, int *alt_gr_consumed)
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*alt_gr_consumed = 0;
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if (status & GRUB_TERM_STATUS_RALT)
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if (status & (GRUB_TERM_STATUS_LSHIFT | GRUB_TERM_STATUS_RSHIFT))
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if (grub_current_layout->keyboard_map_shift_l3[code])
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*alt_gr_consumed = 1;
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return grub_current_layout->keyboard_map_shift_l3[code];
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else if (grub_current_layout->keyboard_map_l3[code])
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*alt_gr_consumed = 1;
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return grub_current_layout->keyboard_map_l3[code];
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if (status & (GRUB_TERM_STATUS_LSHIFT | GRUB_TERM_STATUS_RSHIFT))
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return grub_current_layout->keyboard_map_shift[code];
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return grub_current_layout->keyboard_map[code];
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grub_term_map_key (grub_keyboard_key_t code, int status)
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int alt_gr_consumed = 0;
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if (code >= 0x59 && code <= 0x63 && (status & GRUB_TERM_STATUS_NUM))
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if (status & (GRUB_TERM_STATUS_RSHIFT | GRUB_TERM_STATUS_LSHIFT))
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status &= ~(GRUB_TERM_STATUS_RSHIFT | GRUB_TERM_STATUS_LSHIFT);
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status |= GRUB_TERM_STATUS_RSHIFT;
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key = map_key_core (code, status, &alt_gr_consumed);
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if (key == 0 || key == GRUB_TERM_SHIFT)
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grub_printf ("Unknown key 0x%x detected\n", code);
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if (status & GRUB_TERM_STATUS_CAPS)
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if ((key >= 'a') && (key <= 'z'))
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else if ((key >= 'A') && (key <= 'Z'))
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if ((status & GRUB_TERM_STATUS_LALT) ||
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((status & GRUB_TERM_STATUS_RALT) && !alt_gr_consumed))
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key |= GRUB_TERM_ALT;
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if (status & (GRUB_TERM_STATUS_LCTRL | GRUB_TERM_STATUS_RCTRL))
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key |= GRUB_TERM_CTRL;
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grub_cmd_keymap (struct grub_command *cmd __attribute__ ((unused)),
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int argc, char *argv[])
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grub_uint32_t version;
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grub_uint8_t magic[GRUB_KEYBOARD_LAYOUTS_FILEMAGIC_SIZE];
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struct grub_keyboard_layout *newmap = NULL;
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return grub_error (GRUB_ERR_BAD_ARGUMENT, "file or layout name required");
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if (argv[0][0] != '(' && argv[0][0] != '/' && argv[0][0] != '+')
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const char *prefix = grub_env_get ("prefix");
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return grub_error (GRUB_ERR_BAD_ARGUMENT, "No prefix set");
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filename = grub_xasprintf ("%s/layouts/%s.gkb", prefix, argv[0]);
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file = grub_file_open (filename);
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if (grub_file_read (file, magic, sizeof (magic)) != sizeof (magic))
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grub_error (GRUB_ERR_BAD_ARGUMENT, "file is too short");
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if (grub_memcmp (magic, GRUB_KEYBOARD_LAYOUTS_FILEMAGIC,
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GRUB_KEYBOARD_LAYOUTS_FILEMAGIC_SIZE) != 0)
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grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid magic");
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if (grub_file_read (file, &version, sizeof (version)) != sizeof (version))
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grub_error (GRUB_ERR_BAD_ARGUMENT, "file is too short");
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if (grub_le_to_cpu32 (version) != GRUB_KEYBOARD_LAYOUTS_VERSION)
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grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid version");
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newmap = grub_malloc (sizeof (*newmap));
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if (grub_file_read (file, newmap, sizeof (*newmap)) != sizeof (*newmap))
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grub_error (GRUB_ERR_BAD_ARGUMENT, "file is too short");
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for (i = 0; i < ARRAY_SIZE (newmap->keyboard_map); i++)
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newmap->keyboard_map[i] = grub_le_to_cpu32(newmap->keyboard_map[i]);
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for (i = 0; i < ARRAY_SIZE (newmap->keyboard_map_shift); i++)
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newmap->keyboard_map_shift[i]
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= grub_le_to_cpu32(newmap->keyboard_map_shift[i]);
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for (i = 0; i < ARRAY_SIZE (newmap->keyboard_map_l3); i++)
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newmap->keyboard_map_l3[i]
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= grub_le_to_cpu32(newmap->keyboard_map_l3[i]);
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for (i = 0; i < ARRAY_SIZE (newmap->keyboard_map_shift_l3); i++)
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newmap->keyboard_map_shift_l3[i]
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= grub_le_to_cpu32(newmap->keyboard_map_shift_l3[i]);
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grub_current_layout = newmap;
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return GRUB_ERR_NONE;
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if (filename != argv[0])
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grub_free (filename);
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grub_file_close (file);
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static grub_command_t cmd;
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GRUB_MOD_INIT(keylayouts)
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cmd = grub_register_command ("keymap", grub_cmd_keymap,
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0, N_("Load a keyboard layout."));
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GRUB_MOD_FINI(keylayouts)
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grub_unregister_command (cmd);