e745cf0ca6
guidelines. * grub-core/kern/dl.c (grub_dl_check_license): New function. (grub_dl_load_core): Use grub_dl_check_license. * include/grub/dl.h (GRUB_MOD_SECTION): New macro. (GRUB_MOD_LICENSE): Likewise. (GRUB_MOD_DUAL_LICENSE): Likewise. All modules updated.
110 lines
2.8 KiB
C
110 lines
2.8 KiB
C
/* keystatus.c - Command to check key modifier status. */
|
||
/*
|
||
* GRUB -- GRand Unified Bootloader
|
||
* Copyright (C) 2009 Free Software Foundation, Inc.
|
||
*
|
||
* GRUB is free software: you can redistribute it and/or modify
|
||
* it under the terms of the GNU General Public License as published by
|
||
* the Free Software Foundation, either version 3 of the License, or
|
||
* (at your option) any later version.
|
||
*
|
||
* GRUB is distributed in the hope that it will be useful,
|
||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
* GNU General Public License for more details.
|
||
*
|
||
* You should have received a copy of the GNU General Public License
|
||
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
|
||
*/
|
||
|
||
#include <grub/dl.h>
|
||
#include <grub/misc.h>
|
||
#include <grub/extcmd.h>
|
||
#include <grub/term.h>
|
||
#include <grub/i18n.h>
|
||
|
||
GRUB_MOD_LICENSE ("GPLv3+");
|
||
|
||
static const struct grub_arg_option options[] =
|
||
{
|
||
{"shift", 's', 0, N_("Check Shift key."), 0, 0},
|
||
{"ctrl", 'c', 0, N_("Check Control key."), 0, 0},
|
||
{"alt", 'a', 0, N_("Check Alt key."), 0, 0},
|
||
{0, 0, 0, 0, 0, 0}
|
||
};
|
||
|
||
static int
|
||
grub_getkeystatus (void)
|
||
{
|
||
int status = 0;
|
||
grub_term_input_t term;
|
||
|
||
if (grub_term_poll_usb)
|
||
grub_term_poll_usb ();
|
||
|
||
FOR_ACTIVE_TERM_INPUTS(term)
|
||
{
|
||
if (term->getkeystatus)
|
||
status |= term->getkeystatus (term);
|
||
}
|
||
|
||
return status;
|
||
}
|
||
|
||
static grub_err_t
|
||
grub_cmd_keystatus (grub_extcmd_context_t ctxt,
|
||
int argc __attribute__ ((unused)),
|
||
char **args __attribute__ ((unused)))
|
||
{
|
||
struct grub_arg_list *state = ctxt->state;
|
||
int expect_mods = 0;
|
||
int mods;
|
||
|
||
if (state[0].set)
|
||
expect_mods |= (GRUB_TERM_STATUS_LSHIFT | GRUB_TERM_STATUS_RSHIFT);
|
||
if (state[1].set)
|
||
expect_mods |= (GRUB_TERM_STATUS_LCTRL | GRUB_TERM_STATUS_RCTRL);
|
||
if (state[2].set)
|
||
expect_mods |= (GRUB_TERM_STATUS_LALT | GRUB_TERM_STATUS_RALT);
|
||
|
||
grub_dprintf ("keystatus", "expect_mods: %d\n", expect_mods);
|
||
|
||
/* Without arguments, just check whether getkeystatus is supported at
|
||
all. */
|
||
if (expect_mods == 0)
|
||
{
|
||
grub_term_input_t term;
|
||
int nterms = 0;
|
||
|
||
FOR_ACTIVE_TERM_INPUTS (term)
|
||
if (!term->getkeystatus)
|
||
return grub_error (GRUB_ERR_TEST_FAILURE, "false");
|
||
else
|
||
nterms++;
|
||
if (!nterms)
|
||
return grub_error (GRUB_ERR_TEST_FAILURE, "false");
|
||
return 0;
|
||
}
|
||
|
||
mods = grub_getkeystatus ();
|
||
grub_dprintf ("keystatus", "mods: %d\n", mods);
|
||
if (mods >= 0 && (mods & expect_mods) != 0)
|
||
return 0;
|
||
else
|
||
return grub_error (GRUB_ERR_TEST_FAILURE, "false");
|
||
}
|
||
|
||
static grub_extcmd_t cmd;
|
||
|
||
GRUB_MOD_INIT(keystatus)
|
||
{
|
||
cmd = grub_register_extcmd ("keystatus", grub_cmd_keystatus, 0,
|
||
N_("[--shift] [--ctrl] [--alt]"),
|
||
N_("Check key modifier status."),
|
||
options);
|
||
}
|
||
|
||
GRUB_MOD_FINI(keystatus)
|
||
{
|
||
grub_unregister_extcmd (cmd);
|
||
}
|