src/core/locale-setup.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <errno.h>
   4 #include <stdlib.h>
   5 #include <string.h>
   6
   7 #include "env-util.h"
   8 #include "fileio.h"
   9 #include "locale-setup.h"
  10 #include "locale-util.h"
  11 #include "string-util.h"
  12 #include "strv.h"
  13 #include "util.h"
  14 #include "virt.h"
  15
  16 int locale_setup(char ***environment) {
  17         char **add;
  18         char *variables[_VARIABLE_LC_MAX] = {};
  19         int r = 0, i;
  20
  21         if (detect_container() <= 0) {
  22                 r = parse_env_file(NULL, "/proc/cmdline", WHITESPACE,
  23                                    "locale.LANG",              &variables[VARIABLE_LANG],
  24                                    "locale.LANGUAGE",          &variables[VARIABLE_LANGUAGE],
  25                                    "locale.LC_CTYPE",          &variables[VARIABLE_LC_CTYPE],
  26                                    "locale.LC_NUMERIC",        &variables[VARIABLE_LC_NUMERIC],
  27                                    "locale.LC_TIME",           &variables[VARIABLE_LC_TIME],
  28                                    "locale.LC_COLLATE",        &variables[VARIABLE_LC_COLLATE],
  29                                    "locale.LC_MONETARY",       &variables[VARIABLE_LC_MONETARY],
  30                                    "locale.LC_MESSAGES",       &variables[VARIABLE_LC_MESSAGES],
  31                                    "locale.LC_PAPER",          &variables[VARIABLE_LC_PAPER],
  32                                    "locale.LC_NAME",           &variables[VARIABLE_LC_NAME],
  33                                    "locale.LC_ADDRESS",        &variables[VARIABLE_LC_ADDRESS],
  34                                    "locale.LC_TELEPHONE",      &variables[VARIABLE_LC_TELEPHONE],
  35                                    "locale.LC_MEASUREMENT",    &variables[VARIABLE_LC_MEASUREMENT],
  36                                    "locale.LC_IDENTIFICATION", &variables[VARIABLE_LC_IDENTIFICATION],
  37                                    NULL);
  38
  39                 if (r < 0 && r != -ENOENT)
  40                         log_warning_errno(r, "Failed to read /proc/cmdline: %m");
  41         }
  42
  43         /* Hmm, nothing set on the kernel cmd line? Then let's
  44          * try /etc/locale.conf */
  45         if (r <= 0) {
  46                 r = parse_env_file(NULL, "/etc/locale.conf", NEWLINE,
  47                                    "LANG",              &variables[VARIABLE_LANG],
  48                                    "LANGUAGE",          &variables[VARIABLE_LANGUAGE],
  49                                    "LC_CTYPE",          &variables[VARIABLE_LC_CTYPE],
  50                                    "LC_NUMERIC",        &variables[VARIABLE_LC_NUMERIC],
  51                                    "LC_TIME",           &variables[VARIABLE_LC_TIME],
  52                                    "LC_COLLATE",        &variables[VARIABLE_LC_COLLATE],
  53                                    "LC_MONETARY",       &variables[VARIABLE_LC_MONETARY],
  54                                    "LC_MESSAGES",       &variables[VARIABLE_LC_MESSAGES],
  55                                    "LC_PAPER",          &variables[VARIABLE_LC_PAPER],
  56                                    "LC_NAME",           &variables[VARIABLE_LC_NAME],
  57                                    "LC_ADDRESS",        &variables[VARIABLE_LC_ADDRESS],
  58                                    "LC_TELEPHONE",      &variables[VARIABLE_LC_TELEPHONE],
  59                                    "LC_MEASUREMENT",    &variables[VARIABLE_LC_MEASUREMENT],
  60                                    "LC_IDENTIFICATION", &variables[VARIABLE_LC_IDENTIFICATION],
  61                                    NULL);
  62
  63                 if (r < 0 && r != -ENOENT)
  64                         log_warning_errno(r, "Failed to read /etc/locale.conf: %m");
  65         }
  66
  67         add = NULL;
  68         for (i = 0; i < _VARIABLE_LC_MAX; i++) {
  69                 char *s;
  70
  71                 if (!variables[i])
  72                         continue;
  73
  74                 s = strjoin(locale_variable_to_string(i), "=", variables[i]);
  75                 if (!s) {
  76                         r = -ENOMEM;
  77                         goto finish;
  78                 }
  79
  80                 if (strv_consume(&add, s) < 0) {
  81                         r = -ENOMEM;
  82                         goto finish;
  83                 }
  84         }
  85
  86         if (!strv_isempty(add)) {
  87                 char **e;
  88
  89                 e = strv_env_merge(2, *environment, add);
  90                 if (!e) {
  91                         r = -ENOMEM;
  92                         goto finish;
  93                 }
  94
  95                 strv_free_and_replace(*environment, e);
  96         }
  97
  98         r = 0;
  99
 100 finish:
 101         strv_free(add);
 102
 103         for (i = 0; i < _VARIABLE_LC_MAX; i++)
 104                 free(variables[i]);
 105
 106         return r;
 107 }