| /* |
| * 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)); |
| } |