Line data    Source code

       1             : /* SPDX-License-Identifier: LGPL-2.1+ */
       2             : 
       3             : #include <errno.h>
       4             : #include <stdlib.h>
       5             : #include <string.h>
       6             : 
       7             : #include "env-file.h"
       8             : #include "env-util.h"
       9             : #include "locale-setup.h"
      10             : #include "locale-util.h"
      11             : #include "proc-cmdline.h"
      12             : #include "string-util.h"
      13             : #include "strv.h"
      14             : #include "util.h"
      15             : #include "virt.h"
      16             : 
      17           0 : int locale_setup(char ***environment) {
      18           0 :         _cleanup_(locale_variables_freep) char *variables[_VARIABLE_LC_MAX] = {};
      19           0 :         _cleanup_strv_free_ char **add = NULL;
      20             :         LocaleVariable i;
      21             :         int r;
      22             : 
      23           0 :         r = proc_cmdline_get_key_many(PROC_CMDLINE_STRIP_RD_PREFIX,
      24             :                                       "locale.LANG",              &variables[VARIABLE_LANG],
      25             :                                       "locale.LANGUAGE",          &variables[VARIABLE_LANGUAGE],
      26             :                                       "locale.LC_CTYPE",          &variables[VARIABLE_LC_CTYPE],
      27             :                                       "locale.LC_NUMERIC",        &variables[VARIABLE_LC_NUMERIC],
      28             :                                       "locale.LC_TIME",           &variables[VARIABLE_LC_TIME],
      29             :                                       "locale.LC_COLLATE",        &variables[VARIABLE_LC_COLLATE],
      30             :                                       "locale.LC_MONETARY",       &variables[VARIABLE_LC_MONETARY],
      31             :                                       "locale.LC_MESSAGES",       &variables[VARIABLE_LC_MESSAGES],
      32             :                                       "locale.LC_PAPER",          &variables[VARIABLE_LC_PAPER],
      33             :                                       "locale.LC_NAME",           &variables[VARIABLE_LC_NAME],
      34             :                                       "locale.LC_ADDRESS",        &variables[VARIABLE_LC_ADDRESS],
      35             :                                       "locale.LC_TELEPHONE",      &variables[VARIABLE_LC_TELEPHONE],
      36             :                                       "locale.LC_MEASUREMENT",    &variables[VARIABLE_LC_MEASUREMENT],
      37             :                                       "locale.LC_IDENTIFICATION", &variables[VARIABLE_LC_IDENTIFICATION]);
      38           0 :         if (r < 0 && r != -ENOENT)
      39           0 :                 log_warning_errno(r, "Failed to read /proc/cmdline: %m");
      40             : 
      41             :         /* Hmm, nothing set on the kernel cmd line? Then let's try /etc/locale.conf */
      42           0 :         if (r <= 0) {
      43           0 :                 r = parse_env_file(NULL, "/etc/locale.conf",
      44             :                                    "LANG",              &variables[VARIABLE_LANG],
      45             :                                    "LANGUAGE",          &variables[VARIABLE_LANGUAGE],
      46             :                                    "LC_CTYPE",          &variables[VARIABLE_LC_CTYPE],
      47             :                                    "LC_NUMERIC",        &variables[VARIABLE_LC_NUMERIC],
      48             :                                    "LC_TIME",           &variables[VARIABLE_LC_TIME],
      49             :                                    "LC_COLLATE",        &variables[VARIABLE_LC_COLLATE],
      50             :                                    "LC_MONETARY",       &variables[VARIABLE_LC_MONETARY],
      51             :                                    "LC_MESSAGES",       &variables[VARIABLE_LC_MESSAGES],
      52             :                                    "LC_PAPER",          &variables[VARIABLE_LC_PAPER],
      53             :                                    "LC_NAME",           &variables[VARIABLE_LC_NAME],
      54             :                                    "LC_ADDRESS",        &variables[VARIABLE_LC_ADDRESS],
      55             :                                    "LC_TELEPHONE",      &variables[VARIABLE_LC_TELEPHONE],
      56             :                                    "LC_MEASUREMENT",    &variables[VARIABLE_LC_MEASUREMENT],
      57             :                                    "LC_IDENTIFICATION", &variables[VARIABLE_LC_IDENTIFICATION]);
      58           0 :                 if (r < 0 && r != -ENOENT)
      59           0 :                         log_warning_errno(r, "Failed to read /etc/locale.conf: %m");
      60             :         }
      61             : 
      62           0 :         for (i = 0; i < _VARIABLE_LC_MAX; i++) {
      63             :                 char *s;
      64             : 
      65           0 :                 if (!variables[i])
      66           0 :                         continue;
      67             : 
      68           0 :                 s = strjoin(locale_variable_to_string(i), "=", variables[i]);
      69           0 :                 if (!s)
      70           0 :                         return -ENOMEM;
      71             : 
      72           0 :                 if (strv_consume(&add, s) < 0)
      73           0 :                         return -ENOMEM;
      74             :         }
      75             : 
      76           0 :         if (strv_isempty(add)) {
      77             :                 /* If no locale is configured then default to compile-time default. */
      78             : 
      79           0 :                 add = strv_new("LANG=" SYSTEMD_DEFAULT_LOCALE);
      80           0 :                 if (!add)
      81           0 :                         return -ENOMEM;
      82             :         }
      83             : 
      84           0 :         if (strv_isempty(*environment))
      85           0 :                 strv_free_and_replace(*environment, add);
      86             :         else {
      87             :                 char **merged;
      88             : 
      89           0 :                 merged = strv_env_merge(2, *environment, add);
      90           0 :                 if (!merged)
      91           0 :                         return -ENOMEM;
      92             : 
      93           0 :                 strv_free_and_replace(*environment, merged);
      94             :         }
      95             : 
      96           0 :         return 0;
      97             : }