grub/commands/terminal.c

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/*
* 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/mm.h>
#include <grub/dl.h>
#include <grub/command.h>
#include <grub/term.h>
#include <grub/i18n.h>
#include <grub/misc.h>
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struct grub_term_autoload *grub_term_input_autoload = NULL;
struct grub_term_autoload *grub_term_output_autoload = NULL;
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grub_err_t
grub_cmd_terminal_input (grub_command_t cmd __attribute__ ((unused)),
int argc, char **args)
{
int i;
grub_term_input_t term;
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struct grub_term_autoload *aut;
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if (argc == 0)
{
grub_puts_ (N_ ("Active input terminals:"));
FOR_ACTIVE_TERM_INPUTS(term)
grub_printf ("%s ", term->name);
grub_printf ("\n");
grub_puts_ (N_ ("Available input terminals:"));
FOR_DISABLED_TERM_INPUTS(term)
grub_printf ("%s ", term->name);
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/* This is quadratic but we don't expect mode than 30 terminal
modules ever. */
for (aut = grub_term_input_autoload; aut; aut = aut->next)
{
FOR_DISABLED_TERM_INPUTS(term)
if (grub_strcmp (term->name, aut->name) == 0)
break;
if (!term)
FOR_ACTIVE_TERM_INPUTS(term)
if (grub_strcmp (term->name, aut->name) == 0)
break;
if (!term)
grub_printf ("%s ", aut->name);
}
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grub_printf ("\n");
return GRUB_ERR_NONE;
}
i = 0;
if (grub_strcmp (args[0], "--append") == 0
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|| grub_strcmp (args[0], "--remove") == 0)
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i++;
if (i == argc)
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_ ("no terminal specified"));
for (; i < argc; i++)
{
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int again = 0;
while (1)
{
FOR_DISABLED_TERM_INPUTS(term)
if (grub_strcmp (args[i], term->name) == 0)
break;
if (term == 0)
FOR_ACTIVE_TERM_INPUTS(term)
if (grub_strcmp (args[i], term->name) == 0)
break;
if (term)
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break;
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if (again)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "unknown terminal '%s'\n",
args[i]);
for (aut = grub_term_input_autoload; aut; aut = aut->next)
if (grub_strcmp (args[i], aut->name) == 0)
{
grub_dl_t mod;
mod = grub_dl_load (aut->modname);
if (mod)
grub_dl_ref (mod);
grub_errno = GRUB_ERR_NONE;
break;
}
if (!aut)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "unknown terminal '%s'\n",
args[i]);
again = 1;
}
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}
if (grub_strcmp (args[0], "--append") == 0)
{
for (i = 1; i < argc; i++)
{
FOR_DISABLED_TERM_INPUTS(term)
if (grub_strcmp (args[i], term->name) == 0)
break;
if (term)
{
grub_list_remove (GRUB_AS_LIST_P (&(grub_term_inputs_disabled)),
GRUB_AS_LIST (term));
if (term->init)
term->init ();
grub_list_push (GRUB_AS_LIST_P (&grub_term_inputs),
GRUB_AS_LIST (term));
}
}
return GRUB_ERR_NONE;
}
if (grub_strcmp (args[0], "--remove") == 0)
{
for (i = 1; i < argc; i++)
{
FOR_ACTIVE_TERM_INPUTS(term)
if (grub_strcmp (args[i], term->name) == 0)
break;
if (term)
{
if (!term->next && term == grub_term_inputs)
return grub_error (GRUB_ERR_BAD_ARGUMENT,
"can't remove the last terminal");
grub_list_remove (GRUB_AS_LIST_P (&(grub_term_inputs)),
GRUB_AS_LIST (term));
if (term->fini)
term->fini ();
grub_list_push (GRUB_AS_LIST_P (&grub_term_inputs_disabled),
GRUB_AS_LIST (term));
}
}
return GRUB_ERR_NONE;
}
for (i = 0; i < argc; i++)
{
FOR_DISABLED_TERM_INPUTS(term)
if (grub_strcmp (args[i], term->name) == 0)
break;
if (term)
{
grub_list_remove (GRUB_AS_LIST_P (&(grub_term_inputs_disabled)),
GRUB_AS_LIST (term));
if (term->init)
term->init ();
grub_list_push (GRUB_AS_LIST_P (&grub_term_inputs),
GRUB_AS_LIST (term));
}
}
FOR_ACTIVE_TERM_INPUTS(term)
{
for (i = 0; i < argc; i++)
if (grub_strcmp (args[i], term->name) == 0)
break;
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if (i == argc)
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{
if (!term->next && term == grub_term_inputs)
return grub_error (GRUB_ERR_BAD_ARGUMENT,
"can't remove the last terminal");
grub_list_remove (GRUB_AS_LIST_P (&(grub_term_inputs)),
GRUB_AS_LIST (term));
if (term->fini)
term->fini ();
grub_list_push (GRUB_AS_LIST_P (&grub_term_inputs_disabled),
GRUB_AS_LIST (term));
}
}
return GRUB_ERR_NONE;
}
grub_err_t
grub_cmd_terminal_output (grub_command_t cmd __attribute__ ((unused)),
int argc, char **args)
{
int i;
grub_term_output_t term;
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struct grub_term_autoload *aut;
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if (argc == 0)
{
grub_puts_ (N_ ("Active output terminals:"));
FOR_ACTIVE_TERM_OUTPUTS(term)
grub_printf ("%s ", term->name);
grub_printf ("\n");
grub_puts_ (N_ ("Available output terminals:"));
FOR_DISABLED_TERM_OUTPUTS(term)
grub_printf ("%s ", term->name);
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/* This is quadratic but we don't expect mode than 30 terminal
modules ever. */
for (aut = grub_term_output_autoload; aut; aut = aut->next)
{
FOR_DISABLED_TERM_OUTPUTS(term)
if (grub_strcmp (term->name, aut->name) == 0)
break;
if (!term)
FOR_ACTIVE_TERM_OUTPUTS(term)
if (grub_strcmp (term->name, aut->name) == 0)
break;
if (!term)
grub_printf ("%s ", aut->name);
}
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grub_printf ("\n");
return GRUB_ERR_NONE;
}
i = 0;
if (grub_strcmp (args[0], "--append") == 0
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|| grub_strcmp (args[0], "--remove") == 0)
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i++;
if (i == argc)
return grub_error (GRUB_ERR_BAD_ARGUMENT, N_ ("no terminal specified"));
for (; i < argc; i++)
{
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int again = 0;
while (1)
{
FOR_DISABLED_TERM_OUTPUTS(term)
if (grub_strcmp (args[i], term->name) == 0)
break;
if (term == 0)
FOR_ACTIVE_TERM_OUTPUTS(term)
if (grub_strcmp (args[i], term->name) == 0)
break;
if (term)
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break;
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if (again)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "unknown terminal '%s'\n",
args[i]);
for (aut = grub_term_output_autoload; aut; aut = aut->next)
if (grub_strcmp (args[i], aut->name) == 0)
{
grub_dl_t mod;
mod = grub_dl_load (aut->modname);
if (mod)
grub_dl_ref (mod);
grub_errno = GRUB_ERR_NONE;
break;
}
if (!aut)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "unknown terminal '%s'\n",
args[i]);
again = 1;
}
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}
if (grub_strcmp (args[0], "--append") == 0)
{
for (i = 1; i < argc; i++)
{
FOR_DISABLED_TERM_OUTPUTS(term)
if (grub_strcmp (args[i], term->name) == 0)
break;
if (term)
{
grub_list_remove (GRUB_AS_LIST_P (&(grub_term_outputs_disabled)),
GRUB_AS_LIST (term));
if (term->init)
term->init ();
grub_list_push (GRUB_AS_LIST_P (&grub_term_outputs),
GRUB_AS_LIST (term));
}
}
return GRUB_ERR_NONE;
}
if (grub_strcmp (args[0], "--remove") == 0)
{
for (i = 1; i < argc; i++)
{
FOR_ACTIVE_TERM_OUTPUTS(term)
if (grub_strcmp (args[i], term->name) == 0)
break;
if (term)
{
if (!term->next && term == grub_term_outputs)
return grub_error (GRUB_ERR_BAD_ARGUMENT,
"can't remove the last terminal");
grub_list_remove (GRUB_AS_LIST_P (&(grub_term_outputs)),
GRUB_AS_LIST (term));
if (term->fini)
term->fini ();
grub_list_push (GRUB_AS_LIST_P (&grub_term_outputs_disabled),
GRUB_AS_LIST (term));
}
}
return GRUB_ERR_NONE;
}
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for (i = 0; i < argc; i++)
{
FOR_DISABLED_TERM_OUTPUTS(term)
if (grub_strcmp (args[i], term->name) == 0)
break;
if (term)
{
grub_list_remove (GRUB_AS_LIST_P (&(grub_term_outputs_disabled)),
GRUB_AS_LIST (term));
if (term->init)
term->init ();
grub_list_push (GRUB_AS_LIST_P (&grub_term_outputs),
GRUB_AS_LIST (term));
}
}
FOR_ACTIVE_TERM_OUTPUTS(term)
{
for (i = 0; i < argc; i++)
if (grub_strcmp (args[i], term->name) == 0)
break;
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if (i == argc)
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{
if (!term->next && term == grub_term_outputs)
return grub_error (GRUB_ERR_BAD_ARGUMENT,
"can't remove the last terminal");
grub_list_remove (GRUB_AS_LIST_P (&(grub_term_outputs)),
GRUB_AS_LIST (term));
if (term->fini)
term->fini ();
grub_list_push (GRUB_AS_LIST_P (&grub_term_outputs_disabled),
GRUB_AS_LIST (term));
}
}
return GRUB_ERR_NONE;
}
static grub_command_t cmd_terminal_input, cmd_terminal_output;
GRUB_MOD_INIT(terminal)
{
cmd_terminal_input =
grub_register_command ("terminal_input", grub_cmd_terminal_input,
"terminal_input [--append|--remove] "
"[TERMINAL1] [TERMINAL2] ...",
"List or select an input terminal.");
cmd_terminal_output =
grub_register_command ("terminal_output", grub_cmd_terminal_output,
"terminal_output [--append|--remove] "
"[TERMINAL1] [TERMINAL2] ...",
"List or select an output terminal.");
}
GRUB_MOD_FINI(terminal)
{
grub_unregister_command (cmd_terminal_input);
grub_unregister_command (cmd_terminal_output);
}