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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004,2006,2007,2008,2009,2010,2011,2012,2013 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 <config-util.h>
#include <grub/emu/hostdisk.h>
#include <grub/emu/exec.h>
#include <grub/emu/config.h>
#include <grub/util/install.h>
#include <grub/util/misc.h>
#include <string.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <errno.h>
#include <stdlib.h>
const char *
grub_util_get_config_filename (void)
{
static char *value = NULL;
if (!value)
value = grub_util_path_concat (3, GRUB_SYSCONFDIR,
"default", "grub");
return value;
}
const char *
grub_util_get_pkgdatadir (void)
{
const char *ret = getenv ("pkgdatadir");
if (ret)
return ret;
return GRUB_DATADIR "/" PACKAGE;
}
const char *
grub_util_get_pkglibdir (void)
{
return GRUB_LIBDIR "/" PACKAGE;
}
const char *
grub_util_get_localedir (void)
{
return LOCALEDIR;
}
void
grub_util_load_config (struct grub_util_config *cfg)
{
pid_t pid;
const char *argv[4];
char *script, *ptr;
const char *cfgfile, *iptr;
FILE *f = NULL;
int fd;
const char *v;
memset (cfg, 0, sizeof (*cfg));
v = getenv ("GRUB_ENABLE_CRYPTODISK");
if (v && v[0] == 'y' && v[1] == '\0')
cfg->is_cryptodisk_enabled = 1;
v = getenv ("GRUB_DISTRIBUTOR");
if (v)
cfg->grub_distributor = xstrdup (v);
cfgfile = grub_util_get_config_filename ();
if (!grub_util_is_regular (cfgfile))
return;
argv[0] = "sh";
argv[1] = "-c";
script = xcalloc (4, strlen (cfgfile) + 300);
ptr = script;
memcpy (ptr, ". '", 3);
ptr += 3;
for (iptr = cfgfile; *iptr; iptr++)
{
if (*iptr == '\\')
{
memcpy (ptr, "'\\''", 4);
ptr += 4;
continue;
}
*ptr++ = *iptr;
}
strcpy (ptr, "'; printf \"GRUB_ENABLE_CRYPTODISK=%s\\nGRUB_DISTRIBUTOR=%s\\n\" "
"\"$GRUB_ENABLE_CRYPTODISK\" \"$GRUB_DISTRIBUTOR\"");
argv[2] = script;
argv[3] = '\0';
pid = grub_util_exec_pipe (argv, &fd);
if (pid)
f = fdopen (fd, "r");
if (f)
{
grub_util_parse_config (f, cfg, 1);
fclose (f);
}
if (pid)
{
close (fd);
waitpid (pid, NULL, 0);
}
if (f)
return;
f = grub_util_fopen (cfgfile, "r");
if (f)
{
grub_util_parse_config (f, cfg, 0);
fclose (f);
}
else
grub_util_warn (_("cannot open configuration file `%s': %s"),
cfgfile, strerror (errno));
}
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