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/* SPDX-License-Identifier: LGPL-2.1+ */
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include "env-file.h"
#include "env-util.h"
#include "locale-setup.h"
#include "locale-util.h"
#include "proc-cmdline.h"
#include "string-util.h"
#include "strv.h"
#include "util.h"
#include "virt.h"
int locale_setup(char ***environment) {
_cleanup_(locale_variables_freep) char *variables[_VARIABLE_LC_MAX] = {};
_cleanup_strv_free_ char **add = NULL;
LocaleVariable i;
int r;
r = proc_cmdline_get_key_many(PROC_CMDLINE_STRIP_RD_PREFIX,
"locale.LANG", &variables[VARIABLE_LANG],
"locale.LANGUAGE", &variables[VARIABLE_LANGUAGE],
"locale.LC_CTYPE", &variables[VARIABLE_LC_CTYPE],
"locale.LC_NUMERIC", &variables[VARIABLE_LC_NUMERIC],
"locale.LC_TIME", &variables[VARIABLE_LC_TIME],
"locale.LC_COLLATE", &variables[VARIABLE_LC_COLLATE],
"locale.LC_MONETARY", &variables[VARIABLE_LC_MONETARY],
"locale.LC_MESSAGES", &variables[VARIABLE_LC_MESSAGES],
"locale.LC_PAPER", &variables[VARIABLE_LC_PAPER],
"locale.LC_NAME", &variables[VARIABLE_LC_NAME],
"locale.LC_ADDRESS", &variables[VARIABLE_LC_ADDRESS],
"locale.LC_TELEPHONE", &variables[VARIABLE_LC_TELEPHONE],
"locale.LC_MEASUREMENT", &variables[VARIABLE_LC_MEASUREMENT],
"locale.LC_IDENTIFICATION", &variables[VARIABLE_LC_IDENTIFICATION]);
if (r < 0 && r != -ENOENT)
log_warning_errno(r, "Failed to read /proc/cmdline: %m");
/* Hmm, nothing set on the kernel cmd line? Then let's try /etc/locale.conf */
if (r <= 0) {
r = parse_env_file(NULL, "/etc/locale.conf",
"LANG", &variables[VARIABLE_LANG],
"LANGUAGE", &variables[VARIABLE_LANGUAGE],
"LC_CTYPE", &variables[VARIABLE_LC_CTYPE],
"LC_NUMERIC", &variables[VARIABLE_LC_NUMERIC],
"LC_TIME", &variables[VARIABLE_LC_TIME],
"LC_COLLATE", &variables[VARIABLE_LC_COLLATE],
"LC_MONETARY", &variables[VARIABLE_LC_MONETARY],
"LC_MESSAGES", &variables[VARIABLE_LC_MESSAGES],
"LC_PAPER", &variables[VARIABLE_LC_PAPER],
"LC_NAME", &variables[VARIABLE_LC_NAME],
"LC_ADDRESS", &variables[VARIABLE_LC_ADDRESS],
"LC_TELEPHONE", &variables[VARIABLE_LC_TELEPHONE],
"LC_MEASUREMENT", &variables[VARIABLE_LC_MEASUREMENT],
"LC_IDENTIFICATION", &variables[VARIABLE_LC_IDENTIFICATION]);
if (r < 0 && r != -ENOENT)
log_warning_errno(r, "Failed to read /etc/locale.conf: %m");
}
for (i = 0; i < _VARIABLE_LC_MAX; i++) {
char *s;
if (!variables[i])
continue;
s = strjoin(locale_variable_to_string(i), "=", variables[i]);
if (!s)
return -ENOMEM;
if (strv_consume(&add, s) < 0)
return -ENOMEM;
}
if (strv_isempty(add)) {
/* If no locale is configured then default to compile-time default. */
add = strv_new("LANG=" SYSTEMD_DEFAULT_LOCALE);
if (!add)
return -ENOMEM;
}
if (strv_isempty(*environment))
strv_free_and_replace(*environment, add);
else {
char **merged;
merged = strv_env_merge(2, *environment, add);
if (!merged)
return -ENOMEM;
strv_free_and_replace(*environment, merged);
}
return 0;
}
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