grub-file.c

/*
 *  GRUB  --  GRand Unified Bootloader
 *  Copyright (C) 2010,2012,2013 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 <config.h>

#include <grub/util/misc.h>
#include <grub/i18n.h>
#include <grub/term.h>
#include <grub/font.h>
#include <grub/gfxmenu_view.h>
#include <grub/color.h>
#include <grub/util/install.h>
#include <grub/command.h>
#include <grub/env.h>

#define _GNU_SOURCE	1

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>

#include "progname.h"

void grub_file_init (void);
void grub_host_init (void);
void grub_hostfs_init (void);

int
main (int argc, char *argv[])
{
  char **argv2;
  int i;
  int had_file = 0, had_separator = 0;
  grub_command_t cmd;
  grub_err_t err;

  grub_util_host_init (&argc, &argv);

  argv2 = xcalloc (argc, sizeof (argv2[0]));

  if (argc == 2 && strcmp (argv[1], "--version") == 0)
    {
      printf ("%s (%s) %s\n", program_name, PACKAGE_NAME, PACKAGE_VERSION);
    }

  for (i = 1; i < argc; i++)
    {
      if (argv[i][0] == '-' && argv[i][1] == '-'
	  && argv[i][2] == '\0' && !had_separator)
	{
	  had_separator = 1;
	  argv2[i - 1] = xstrdup (argv[i]);
	  continue;
	}
      if (argv[i][0] == '-' && !had_separator)
	{
	  argv2[i - 1] = xstrdup (argv[i]);
	  continue;
	}
      if (had_file)
	grub_util_error ("one argument expected");
      argv2[i - 1] = grub_canonicalize_file_name (argv[i]);
      if (!argv2[i - 1])
	{
	  grub_util_error (_("cannot open `%s': %s"), argv[i],
			   strerror (errno));
	}
      had_file = 1;
    }
  argv2[i - 1] = NULL;

  /* Initialize all modules. */
  grub_init_all ();
  grub_file_init ();
  grub_hostfs_init ();
  grub_host_init ();

  grub_env_set ("root", "host");

  cmd = grub_command_find ("file");
  if (! cmd)
    grub_util_error (_("can't find command `%s'"), "file");

  err = (cmd->func) (cmd, argc - 1, argv2);
  if (err && err != GRUB_ERR_TEST_FAILURE)
    grub_print_error ();
  return err;
}