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         VARIABLE_LANG,
  32         VARIABLE_LC_CTYPE,
  33         VARIABLE_LC_NUMERIC,
  34         VARIABLE_LC_TIME,
  35         VARIABLE_LC_COLLATE,
  36         VARIABLE_LC_MONETARY,
  37         VARIABLE_LC_MESSAGES,
  38         VARIABLE_LC_ALL,
  39         VARIABLE_LC_PAPER,
  40         VARIABLE_LC_NAME,
  41         VARIABLE_LC_ADDRESS,
  42         VARIABLE_LC_TELEPHONE,
  43         VARIABLE_LC_MEASUREMENT,
  44         VARIABLE_LC_IDENTIFICATION,
  45         _VARIABLE_MAX
  46 };
  47
  48 static const char * const variable_names[_VARIABLE_MAX] = {
  49         [VARIABLE_LANG] = "LANG",
  50         [VARIABLE_LC_CTYPE] = "LC_CTYPE",
  51         [VARIABLE_LC_NUMERIC] = "LC_NUMERIC",
  52         [VARIABLE_LC_TIME] = "TIME",
  53         [VARIABLE_LC_COLLATE] = "COLLATE",
  54         [VARIABLE_LC_MONETARY] = "MONETARY",
  55         [VARIABLE_LC_MESSAGES] = "MESSAGE",
  56         [VARIABLE_LC_ALL] = "ALL",
  57         [VARIABLE_LC_PAPER] = "PAPER",
  58         [VARIABLE_LC_NAME] = "NAME",
  59         [VARIABLE_LC_ADDRESS] = "ADDRESS",
  60         [VARIABLE_LC_TELEPHONE] = "TELEPHONE",
  61         [VARIABLE_LC_MEASUREMENT] = "MEASUREMENT",
  62         [VARIABLE_LC_IDENTIFICATION] = "IDENTIFICATION"
  63 };
  64
  65 int locale_setup(void) {
  66         char *variables[_VARIABLE_MAX];
  67         int r, i;
  68
  69         zero(variables);
  70
  71 #ifdef TARGET_FEDORA
  72         if ((r = parse_env_file("/etc/sysconfig/i18n", NEWLINE,
  73                                 "LANG", &variables[VARIABLE_LANG],
  74                                 NULL)) < 0) {
  75
  76                 if (r != -ENOENT)
  77                         log_warning("Failed to read /etc/sysconfig/i18n: %s", strerror(-r));
  78         }
  79 #endif
  80
  81         /* Override distribution-specific options with the
  82          * distribution-independent configuration */
  83         if ((r = parse_env_file("/etc/locale", NEWLINE,
  84                                 "LANG",              &variables[VARIABLE_LANG],
  85                                 "LC_CTYPE",          &variables[VARIABLE_LC_CTYPE],
  86                                 "LC_NUMERIC",        &variables[VARIABLE_LC_NUMERIC],
  87                                 "LC_TIME",           &variables[VARIABLE_LC_TIME],
  88                                 "LC_COLLATE",        &variables[VARIABLE_LC_COLLATE],
  89                                 "LC_MONETARY",       &variables[VARIABLE_LC_MONETARY],
  90                                 "LC_MESSAGES",       &variables[VARIABLE_LC_MESSAGES],
  91                                 "LC_ALL",            &variables[VARIABLE_LC_ALL],
  92                                 "LC_PAPER",          &variables[VARIABLE_LC_PAPER],
  93                                 "LC_NAME",           &variables[VARIABLE_LC_NAME],
  94                                 "LC_ADDRESS",        &variables[VARIABLE_LC_ADDRESS],
  95                                 "LC_TELEPHONE",      &variables[VARIABLE_LC_TELEPHONE],
  96                                 "LC_MEASUREMENT",    &variables[VARIABLE_LC_MEASUREMENT],
  97                                 "LC_IDENTIFICATION", &variables[VARIABLE_LC_IDENTIFICATION],
  98                                 NULL)) < 0) {
  99
 100                 if (r != -ENOENT)
 101                         log_warning("Failed to read /etc/locale: %s", strerror(-r));
 102         }
 103
 104         if ((r = parse_env_file("/proc/cmdline", WHITESPACE,
 105 #ifdef TARGET_FEDORA
 106                                 "LANG",                     &variables[VARIABLE_LANG],
 107 #endif
 108                                 "locale.LANG",              &variables[VARIABLE_LANG],
 109                                 "locale.LC_CTYPE",          &variables[VARIABLE_LC_CTYPE],
 110                                 "locale.LC_NUMERIC",        &variables[VARIABLE_LC_NUMERIC],
 111                                 "locale.LC_TIME",           &variables[VARIABLE_LC_TIME],
 112                                 "locale.LC_COLLATE",        &variables[VARIABLE_LC_COLLATE],
 113                                 "locale.LC_MONETARY",       &variables[VARIABLE_LC_MONETARY],
 114                                 "locale.LC_MESSAGES",       &variables[VARIABLE_LC_MESSAGES],
 115                                 "locale.LC_ALL",            &variables[VARIABLE_LC_ALL],
 116                                 "locale.LC_PAPER",          &variables[VARIABLE_LC_PAPER],
 117                                 "locale.LC_NAME",           &variables[VARIABLE_LC_NAME],
 118                                 "locale.LC_ADDRESS",        &variables[VARIABLE_LC_ADDRESS],
 119                                 "locale.LC_TELEPHONE",      &variables[VARIABLE_LC_TELEPHONE],
 120                                 "locale.LC_MEASUREMENT",    &variables[VARIABLE_LC_MEASUREMENT],
 121                                 "locale.LC_IDENTIFICATION", &variables[VARIABLE_LC_IDENTIFICATION],
 122                                 NULL)) < 0) {
 123
 124                 if (r != -ENOENT)
 125                         log_warning("Failed to read /proc/cmdline: %s", strerror(-r));
 126         }
 127
 128         if (!variables[VARIABLE_LANG]) {
 129                 if (!(variables[VARIABLE_LANG] = strdup("C"))) {
 130                         r = -ENOMEM;
 131                         goto finish;
 132                 }
 133         }
 134
 135         for (i = 0; i < _VARIABLE_MAX; i++) {
 136
 137                 if (!variables[i])
 138                         continue;
 139
 140                 if (setenv(variable_names[i], variables[i], 1) < 0) {
 141                         r = -errno;
 142                         goto finish;
 143                 }
 144
 145         }
 146         r = 0;
 147
 148 finish:
 149         for (i = 0; i < _VARIABLE_MAX; i++)
 150                 free(variables[i]);
 151
 152         return r;
 153 }