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vaseboot/VasEBoot-core/commands/terminal.c

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/*
* VasEBoot -- GRand Unified Bootloader
* Copyright (C) 2009,2010 Free Software Foundation, Inc.
*
* VasEBoot 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.
*
* VasEBoot 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 VasEBoot. If not, see <http://www.gnu.org/licenses/>.
*/
#include <VasEBoot/mm.h>
#include <VasEBoot/dl.h>
#include <VasEBoot/command.h>
#include <VasEBoot/term.h>
#include <VasEBoot/i18n.h>
#include <VasEBoot/misc.h>
VasEBoot_MOD_LICENSE ("GPLv3+");
struct VasEBoot_term_autoload *VasEBoot_term_input_autoload = NULL;
struct VasEBoot_term_autoload *VasEBoot_term_output_autoload = NULL;
struct abstract_terminal
{
struct abstract_terminal *next;
struct abstract_terminal *prev;
const char *name;
VasEBoot_err_t (*init) (struct abstract_terminal *term);
VasEBoot_err_t (*fini) (struct abstract_terminal *term);
};
static VasEBoot_err_t
handle_command (int argc, char **args, struct abstract_terminal **enabled,
struct abstract_terminal **disabled,
struct VasEBoot_term_autoload *autoloads,
const char *active_str,
const char *available_str)
{
int i;
struct abstract_terminal *term;
struct VasEBoot_term_autoload *aut;
if (argc == 0)
{
VasEBoot_puts_ (active_str);
for (term = *enabled; term; term = term->next)
VasEBoot_printf ("%s ", term->name);
VasEBoot_printf ("\n");
VasEBoot_puts_ (available_str);
for (term = *disabled; term; term = term->next)
VasEBoot_printf ("%s ", term->name);
/* This is quadratic but we don't expect mode than 30 terminal
modules ever. */
for (aut = autoloads; aut; aut = aut->next)
{
for (term = *disabled; term; term = term->next)
if (VasEBoot_strcmp (term->name, aut->name) == 0
|| (aut->name[0] && aut->name[VasEBoot_strlen (aut->name) - 1] == '*'
&& VasEBoot_memcmp (term->name, aut->name,
VasEBoot_strlen (aut->name) - 1) == 0))
break;
if (!term)
for (term = *enabled; term; term = term->next)
if (VasEBoot_strcmp (term->name, aut->name) == 0
|| (aut->name[0] && aut->name[VasEBoot_strlen (aut->name) - 1] == '*'
&& VasEBoot_memcmp (term->name, aut->name,
VasEBoot_strlen (aut->name) - 1) == 0))
break;
if (!term)
VasEBoot_printf ("%s ", aut->name);
}
VasEBoot_printf ("\n");
return VasEBoot_ERR_NONE;
}
i = 0;
if (VasEBoot_strcmp (args[0], "--append") == 0
|| VasEBoot_strcmp (args[0], "--remove") == 0)
i++;
if (i == argc)
return VasEBoot_error (VasEBoot_ERR_BAD_ARGUMENT, N_ ("no terminal specified"));
for (; i < argc; i++)
{
int again = 0;
while (1)
{
for (term = *disabled; term; term = term->next)
if (VasEBoot_strcmp (args[i], term->name) == 0
|| (VasEBoot_strcmp (args[i], "ofconsole") == 0
&& VasEBoot_strcmp ("console", term->name) == 0))
break;
if (term == 0)
for (term = *enabled; term; term = term->next)
if (VasEBoot_strcmp (args[i], term->name) == 0
|| (VasEBoot_strcmp (args[i], "ofconsole") == 0
&& VasEBoot_strcmp ("console", term->name) == 0))
break;
if (term)
break;
if (again)
return VasEBoot_error (VasEBoot_ERR_BAD_ARGUMENT,
N_("terminal `%s' isn't found"),
args[i]);
for (aut = autoloads; aut; aut = aut->next)
if (VasEBoot_strcmp (args[i], aut->name) == 0
|| (VasEBoot_strcmp (args[i], "ofconsole") == 0
&& VasEBoot_strcmp ("console", aut->name) == 0)
|| (aut->name[0] && aut->name[VasEBoot_strlen (aut->name) - 1] == '*'
&& VasEBoot_memcmp (args[i], aut->name,
VasEBoot_strlen (aut->name) - 1) == 0))
{
VasEBoot_dl_t mod;
mod = VasEBoot_dl_load (aut->modname);
if (mod)
VasEBoot_dl_ref (mod);
VasEBoot_errno = VasEBoot_ERR_NONE;
break;
}
if (VasEBoot_memcmp (args[i], "serial_usb",
sizeof ("serial_usb") - 1) == 0
&& VasEBoot_term_poll_usb)
{
VasEBoot_term_poll_usb (1);
again = 1;
continue;
}
if (!aut)
return VasEBoot_error (VasEBoot_ERR_BAD_ARGUMENT,
N_("terminal `%s' isn't found"),
args[i]);
again = 1;
}
}
if (VasEBoot_strcmp (args[0], "--append") == 0)
{
for (i = 1; i < argc; i++)
{
for (term = *disabled; term; term = term->next)
if (VasEBoot_strcmp (args[i], term->name) == 0
|| (VasEBoot_strcmp (args[i], "ofconsole") == 0
&& VasEBoot_strcmp ("console", term->name) == 0))
break;
if (term)
{
if (term->init && term->init (term) != VasEBoot_ERR_NONE)
return VasEBoot_errno;
VasEBoot_list_remove (VasEBoot_AS_LIST (term));
VasEBoot_list_push (VasEBoot_AS_LIST_P (enabled), VasEBoot_AS_LIST (term));
}
}
return VasEBoot_ERR_NONE;
}
if (VasEBoot_strcmp (args[0], "--remove") == 0)
{
for (i = 1; i < argc; i++)
{
for (term = *enabled; term; term = term->next)
if (VasEBoot_strcmp (args[i], term->name) == 0
|| (VasEBoot_strcmp (args[i], "ofconsole") == 0
&& VasEBoot_strcmp ("console", term->name) == 0))
break;
if (term)
{
if (!term->next && term == *enabled)
return VasEBoot_error (VasEBoot_ERR_BAD_ARGUMENT,
"can't remove the last terminal");
VasEBoot_list_remove (VasEBoot_AS_LIST (term));
if (term->fini)
term->fini (term);
VasEBoot_list_push (VasEBoot_AS_LIST_P (disabled), VasEBoot_AS_LIST (term));
}
}
return VasEBoot_ERR_NONE;
}
for (i = 0; i < argc; i++)
{
for (term = *disabled; term; term = term->next)
if (VasEBoot_strcmp (args[i], term->name) == 0
|| (VasEBoot_strcmp (args[i], "ofconsole") == 0
&& VasEBoot_strcmp ("console", term->name) == 0))
break;
if (term)
{
if (term->init && term->init (term) != VasEBoot_ERR_NONE)
return VasEBoot_errno;
VasEBoot_list_remove (VasEBoot_AS_LIST (term));
VasEBoot_list_push (VasEBoot_AS_LIST_P (enabled), VasEBoot_AS_LIST (term));
}
}
{
struct abstract_terminal *next;
for (term = *enabled; term; term = next)
{
next = term->next;
for (i = 0; i < argc; i++)
if (VasEBoot_strcmp (args[i], term->name) == 0
|| (VasEBoot_strcmp (args[i], "ofconsole") == 0
&& VasEBoot_strcmp ("console", term->name) == 0))
break;
if (i == argc)
{
if (!term->next && term == *enabled)
return VasEBoot_error (VasEBoot_ERR_BAD_ARGUMENT,
"can't remove the last terminal");
VasEBoot_list_remove (VasEBoot_AS_LIST (term));
if (term->fini)
term->fini (term);
VasEBoot_list_push (VasEBoot_AS_LIST_P (disabled), VasEBoot_AS_LIST (term));
}
}
}
return VasEBoot_ERR_NONE;
}
static VasEBoot_err_t
VasEBoot_cmd_terminal_input (VasEBoot_command_t cmd __attribute__ ((unused)),
int argc, char **args)
{
(void) VasEBoot_FIELD_MATCH (VasEBoot_term_inputs, struct abstract_terminal *, next);
(void) VasEBoot_FIELD_MATCH (VasEBoot_term_inputs, struct abstract_terminal *, prev);
(void) VasEBoot_FIELD_MATCH (VasEBoot_term_inputs, struct abstract_terminal *, name);
(void) VasEBoot_FIELD_MATCH (VasEBoot_term_inputs, struct abstract_terminal *, init);
(void) VasEBoot_FIELD_MATCH (VasEBoot_term_inputs, struct abstract_terminal *, fini);
return handle_command (argc, args,
(struct abstract_terminal **) (void *) &VasEBoot_term_inputs,
(struct abstract_terminal **) (void *) &VasEBoot_term_inputs_disabled,
VasEBoot_term_input_autoload,
N_ ("Active input terminals:"),
N_ ("Available input terminals:"));
}
static VasEBoot_err_t
VasEBoot_cmd_terminal_output (VasEBoot_command_t cmd __attribute__ ((unused)),
int argc, char **args)
{
(void) VasEBoot_FIELD_MATCH (VasEBoot_term_outputs, struct abstract_terminal *, next);
(void) VasEBoot_FIELD_MATCH (VasEBoot_term_outputs, struct abstract_terminal *, prev);
(void) VasEBoot_FIELD_MATCH (VasEBoot_term_outputs, struct abstract_terminal *, name);
(void) VasEBoot_FIELD_MATCH (VasEBoot_term_outputs, struct abstract_terminal *, init);
(void) VasEBoot_FIELD_MATCH (VasEBoot_term_outputs, struct abstract_terminal *, fini);
return handle_command (argc, args,
(struct abstract_terminal **) (void *) &VasEBoot_term_outputs,
(struct abstract_terminal **) (void *) &VasEBoot_term_outputs_disabled,
VasEBoot_term_output_autoload,
N_ ("Active output terminals:"),
N_ ("Available output terminals:"));
}
static VasEBoot_command_t cmd_terminal_input, cmd_terminal_output;
VasEBoot_MOD_INIT(terminal)
{
cmd_terminal_input =
VasEBoot_register_command ("terminal_input", VasEBoot_cmd_terminal_input,
N_("[--append|--remove] "
"[TERMINAL1] [TERMINAL2] ..."),
N_("List or select an input terminal."));
cmd_terminal_output =
VasEBoot_register_command ("terminal_output", VasEBoot_cmd_terminal_output,
N_("[--append|--remove] "
"[TERMINAL1] [TERMINAL2] ..."),
N_("List or select an output terminal."));
}
VasEBoot_MOD_FINI(terminal)
{
VasEBoot_unregister_command (cmd_terminal_input);
VasEBoot_unregister_command (cmd_terminal_output);
}
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