src/locale-setup.c

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2010 Lennart Poettering
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU General Public License as published by
  10   the Free Software Foundation; either version 2 of the License, or
  11   (at your option) any later version.
  12
  13   systemd is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #include <string.h>
  23 #include <stdlib.h>
  24 #include <errno.h>
  25
  26 #include "locale-setup.h"
  27 #include "util.h"
  28 #include "macro.h"
  29
  30 enum {
  31         /* We don't list LC_ALL here on purpose. People should be
  32          * using LANG instead. */
  33
  34         VARIABLE_LANG,
  35         VARIABLE_LC_CTYPE,
  36         VARIABLE_LC_NUMERIC,
  37         VARIABLE_LC_TIME,
  38         VARIABLE_LC_COLLATE,
  39         VARIABLE_LC_MONETARY,
  40         VARIABLE_LC_MESSAGES,
  41         VARIABLE_LC_PAPER,
  42         VARIABLE_LC_NAME,
  43         VARIABLE_LC_ADDRESS,
  44         VARIABLE_LC_TELEPHONE,
  45         VARIABLE_LC_MEASUREMENT,
  46         VARIABLE_LC_IDENTIFICATION,
  47         _VARIABLE_MAX
  48 };
  49
  50 static const char * const variable_names[_VARIABLE_MAX] = {
  51         [VARIABLE_LANG] = "LANG",
  52         [VARIABLE_LC_CTYPE] = "LC_CTYPE",
  53         [VARIABLE_LC_NUMERIC] = "LC_NUMERIC",
  54         [VARIABLE_LC_TIME] = "TIME",
  55         [VARIABLE_LC_COLLATE] = "COLLATE",
  56         [VARIABLE_LC_MONETARY] = "MONETARY",
  57         [VARIABLE_LC_MESSAGES] = "MESSAGE",
  58         [VARIABLE_LC_PAPER] = "PAPER",
  59         [VARIABLE_LC_NAME] = "NAME",
  60         [VARIABLE_LC_ADDRESS] = "ADDRESS",
  61         [VARIABLE_LC_TELEPHONE] = "TELEPHONE",
  62         [VARIABLE_LC_MEASUREMENT] = "MEASUREMENT",
  63         [VARIABLE_LC_IDENTIFICATION] = "IDENTIFICATION"
  64 };
  65
  66 int locale_setup(void) {
  67         char *variables[_VARIABLE_MAX];
  68         int r, i;
  69
  70         zero(variables);
  71
  72 #ifdef TARGET_FEDORA
  73         if ((r = parse_env_file("/etc/sysconfig/i18n", NEWLINE,
  74                                 "LANG", &variables[VARIABLE_LANG],
  75                                 NULL)) < 0) {
  76
  77                 if (r != -ENOENT)
  78                         log_warning("Failed to read /etc/sysconfig/i18n: %s", strerror(-r));
  79         }
  80 #elif defined(TARGET_ARCH)
  81         if ((r = parse_env_file("/etc/rc.conf", NEWLINE,
  82                                 "LOCALE", &variables[VARIABLE_LANG],
  83                                 NULL)) < 0) {
  84
  85                 if (r != -ENOENT)
  86                         log_warning("Failed to read /etc/rc.conf: %s", strerror(-r));
  87         }
  88 #elif defined(TARGET_GENTOO)
  89         /* Gentoo's openrc expects locale variables in /etc/env.d/
  90          * These files are later compiled by env-update into shell
  91          * export commands at /etc/profile.env, with variables being
  92          * exported by openrc's runscript (so /etc/init.d/)
  93          */
  94         if ((r = parse_env_file("/etc/profile.env", NEWLINE,
  95                                 "export LANG",              &variables[VARIABLE_LANG],
  96                                 "export LC_CTYPE",          &variables[VARIABLE_LC_CTYPE],
  97                                 "export LC_NUMERIC",        &variables[VARIABLE_LC_NUMERIC],
  98                                 "export LC_TIME",           &variables[VARIABLE_LC_TIME],
  99                                 "export LC_COLLATE",        &variables[VARIABLE_LC_COLLATE],
 100                                 "export LC_MONETARY",       &variables[VARIABLE_LC_MONETARY],
 101                                 "export LC_MESSAGES",       &variables[VARIABLE_LC_MESSAGES],
 102                                 "export LC_PAPER",          &variables[VARIABLE_LC_PAPER],
 103                                 "export LC_NAME",           &variables[VARIABLE_LC_NAME],
 104                                 "export LC_ADDRESS",        &variables[VARIABLE_LC_ADDRESS],
 105                                 "export LC_TELEPHONE",      &variables[VARIABLE_LC_TELEPHONE],
 106                                 "export LC_MEASUREMENT",    &variables[VARIABLE_LC_MEASUREMENT],
 107                                 "export LC_IDENTIFICATION", &variables[VARIABLE_LC_IDENTIFICATION],
 108                                 NULL)) < 0) {
 109
 110                 if (r != -ENOENT)
 111                         log_warning("Failed to read /etc/profile.env: %s", strerror(-r));
 112         }
 113 #endif
 114
 115         /* Override distribution-specific options with the
 116          * distribution-independent configuration */
 117         if ((r = parse_env_file("/etc/locale", NEWLINE,
 118                                 "LANG",              &variables[VARIABLE_LANG],
 119                                 "LC_CTYPE",          &variables[VARIABLE_LC_CTYPE],
 120                                 "LC_NUMERIC",        &variables[VARIABLE_LC_NUMERIC],
 121                                 "LC_TIME",           &variables[VARIABLE_LC_TIME],
 122                                 "LC_COLLATE",        &variables[VARIABLE_LC_COLLATE],
 123                                 "LC_MONETARY",       &variables[VARIABLE_LC_MONETARY],
 124                                 "LC_MESSAGES",       &variables[VARIABLE_LC_MESSAGES],
 125                                 "LC_PAPER",          &variables[VARIABLE_LC_PAPER],
 126                                 "LC_NAME",           &variables[VARIABLE_LC_NAME],
 127                                 "LC_ADDRESS",        &variables[VARIABLE_LC_ADDRESS],
 128                                 "LC_TELEPHONE",      &variables[VARIABLE_LC_TELEPHONE],
 129                                 "LC_MEASUREMENT",    &variables[VARIABLE_LC_MEASUREMENT],
 130                                 "LC_IDENTIFICATION", &variables[VARIABLE_LC_IDENTIFICATION],
 131                                 NULL)) < 0) {
 132
 133                 if (r != -ENOENT)
 134                         log_warning("Failed to read /etc/locale: %s", strerror(-r));
 135         }
 136
 137         if ((r = parse_env_file("/proc/cmdline", WHITESPACE,
 138 #ifdef TARGET_FEDORA
 139                                 "LANG",                     &variables[VARIABLE_LANG],
 140 #endif
 141                                 "locale.LANG",              &variables[VARIABLE_LANG],
 142                                 "locale.LC_CTYPE",          &variables[VARIABLE_LC_CTYPE],
 143                                 "locale.LC_NUMERIC",        &variables[VARIABLE_LC_NUMERIC],
 144                                 "locale.LC_TIME",           &variables[VARIABLE_LC_TIME],
 145                                 "locale.LC_COLLATE",        &variables[VARIABLE_LC_COLLATE],
 146                                 "locale.LC_MONETARY",       &variables[VARIABLE_LC_MONETARY],
 147                                 "locale.LC_MESSAGES",       &variables[VARIABLE_LC_MESSAGES],
 148                                 "locale.LC_PAPER",          &variables[VARIABLE_LC_PAPER],
 149                                 "locale.LC_NAME",           &variables[VARIABLE_LC_NAME],
 150                                 "locale.LC_ADDRESS",        &variables[VARIABLE_LC_ADDRESS],
 151                                 "locale.LC_TELEPHONE",      &variables[VARIABLE_LC_TELEPHONE],
 152                                 "locale.LC_MEASUREMENT",    &variables[VARIABLE_LC_MEASUREMENT],
 153                                 "locale.LC_IDENTIFICATION", &variables[VARIABLE_LC_IDENTIFICATION],
 154                                 NULL)) < 0) {
 155
 156                 if (r != -ENOENT)
 157                         log_warning("Failed to read /proc/cmdline: %s", strerror(-r));
 158         }
 159
 160         if (!variables[VARIABLE_LANG]) {
 161                 if (!(variables[VARIABLE_LANG] = strdup("C"))) {
 162                         r = -ENOMEM;
 163                         goto finish;
 164                 }
 165         }
 166
 167         for (i = 0; i < _VARIABLE_MAX; i++) {
 168
 169                 if (variables[i]) {
 170                         if (setenv(variable_names[i], variables[i], 1) < 0) {
 171                                 r = -errno;
 172                                 goto finish;
 173                         }
 174                 } else
 175                         unsetenv(variable_names[i]);
 176         }
 177
 178         r = 0;
 179
 180 finish:
 181         for (i = 0; i < _VARIABLE_MAX; i++)
 182                 free(variables[i]);
 183
 184         return r;
 185 }