[thirdparty/systemd.git] / src / locale-setup.c

/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

/***
  This file is part of systemd.

  Copyright 2010 Lennart Poettering

  systemd is free software; you can redistribute it and/or modify it
  under the terms of the GNU General Public License as published by
  the Free Software Foundation; either version 2 of the License, or
  (at your option) any later version.

  systemd is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#include <string.h>
#include <stdlib.h>
#include <errno.h>

#include "locale-setup.h"
#include "util.h"
#include "macro.h"

enum {
        /* We don't list LC_ALL here on purpose. People should be
         * using LANG instead. */

        VARIABLE_LANG,
        VARIABLE_LC_CTYPE,
        VARIABLE_LC_NUMERIC,
        VARIABLE_LC_TIME,
        VARIABLE_LC_COLLATE,
        VARIABLE_LC_MONETARY,
        VARIABLE_LC_MESSAGES,
        VARIABLE_LC_PAPER,
        VARIABLE_LC_NAME,
        VARIABLE_LC_ADDRESS,
        VARIABLE_LC_TELEPHONE,
        VARIABLE_LC_MEASUREMENT,
        VARIABLE_LC_IDENTIFICATION,
        _VARIABLE_MAX
};

static const char * const variable_names[_VARIABLE_MAX] = {
        [VARIABLE_LANG] = "LANG",
        [VARIABLE_LC_CTYPE] = "LC_CTYPE",
        [VARIABLE_LC_NUMERIC] = "LC_NUMERIC",
        [VARIABLE_LC_TIME] = "TIME",
        [VARIABLE_LC_COLLATE] = "COLLATE",
        [VARIABLE_LC_MONETARY] = "MONETARY",
        [VARIABLE_LC_MESSAGES] = "MESSAGE",
        [VARIABLE_LC_PAPER] = "PAPER",
        [VARIABLE_LC_NAME] = "NAME",
        [VARIABLE_LC_ADDRESS] = "ADDRESS",
        [VARIABLE_LC_TELEPHONE] = "TELEPHONE",
        [VARIABLE_LC_MEASUREMENT] = "MEASUREMENT",
        [VARIABLE_LC_IDENTIFICATION] = "IDENTIFICATION"
};

int locale_setup(void) {
        char *variables[_VARIABLE_MAX];
        int r, i;

        zero(variables);

        if ((r = parse_env_file("/proc/cmdline", WHITESPACE,
#ifdef TARGET_FEDORA
                                "LANG",                     &variables[VARIABLE_LANG],
#endif
                                "locale.LANG",              &variables[VARIABLE_LANG],
                                "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],
                                NULL)) < 0) {

                if (r != -ENOENT)
                        log_warning("Failed to read /proc/cmdline: %s", strerror(-r));
        }

        /* Hmm, nothing set on the kernel cmd line? Then let's
         * try /etc/locale */
        if (r <= 0 &&
            (r = parse_env_file("/etc/locale", NEWLINE,
                               "LANG",              &variables[VARIABLE_LANG],
                               "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],
                                NULL)) < 0) {

                if (r != -ENOENT)
                        log_warning("Failed to read /etc/locale: %s", strerror(-r));
        }

#ifdef TARGET_FEDORA
        if (r <= 0 &&
            (r = parse_env_file("/etc/sysconfig/i18n", NEWLINE,
                                "LANG", &variables[VARIABLE_LANG],
                                NULL)) < 0) {

                if (r != -ENOENT)
                        log_warning("Failed to read /etc/sysconfig/i18n: %s", strerror(-r));
        }

#elif defined(TARGET_SUSE)
        if (r <= 0 &&
            (r = parse_env_file("/etc/sysconfig/language", NEWLINE,
                                "RC_LANG", &variables[VARIABLE_LANG],
                                NULL)) < 0) {

                if (r != -ENOENT)
                        log_warning("Failed to read /etc/sysconfig/language: %s", strerror(-r));
        }

#elif defined(TARGET_DEBIAN)
        if (r <= 0 &&
            (r = parse_env_file("/etc/default/locale", NEWLINE,
                                "LANG", &variables[VARIABLE_LANG],
                                NULL)) < 0) {

                if (r != -ENOENT)
                        log_warning("Failed to read /etc/default/locale: %s", strerror(-r));
        }

#elif defined(TARGET_ARCH)
        if (r <= 0 &&
            (r = parse_env_file("/etc/rc.conf", NEWLINE,
                                "LOCALE", &variables[VARIABLE_LANG],
                                NULL)) < 0) {

                if (r != -ENOENT)
                        log_warning("Failed to read /etc/rc.conf: %s", strerror(-r));
        }

#elif defined(TARGET_GENTOO)
        /* Gentoo's openrc expects locale variables in /etc/env.d/
         * These files are later compiled by env-update into shell
         * export commands at /etc/profile.env, with variables being
         * exported by openrc's runscript (so /etc/init.d/)
         */
        if (r <= 0 &&
            (r = parse_env_file("/etc/profile.env", NEWLINE,
                                "export LANG",              &variables[VARIABLE_LANG],
                                "export LC_CTYPE",          &variables[VARIABLE_LC_CTYPE],
                                "export LC_NUMERIC",        &variables[VARIABLE_LC_NUMERIC],
                                "export LC_TIME",           &variables[VARIABLE_LC_TIME],
                                "export LC_COLLATE",        &variables[VARIABLE_LC_COLLATE],
                                "export LC_MONETARY",       &variables[VARIABLE_LC_MONETARY],
                                "export LC_MESSAGES",       &variables[VARIABLE_LC_MESSAGES],
                                "export LC_PAPER",          &variables[VARIABLE_LC_PAPER],
                                "export LC_NAME",           &variables[VARIABLE_LC_NAME],
                                "export LC_ADDRESS",        &variables[VARIABLE_LC_ADDRESS],
                                "export LC_TELEPHONE",      &variables[VARIABLE_LC_TELEPHONE],
                                "export LC_MEASUREMENT",    &variables[VARIABLE_LC_MEASUREMENT],
                                "export LC_IDENTIFICATION", &variables[VARIABLE_LC_IDENTIFICATION],
                                NULL)) < 0) {

                if (r != -ENOENT)
                        log_warning("Failed to read /etc/profile.env: %s", strerror(-r));
        }
#endif

        if (!variables[VARIABLE_LANG]) {
                if (!(variables[VARIABLE_LANG] = strdup("C"))) {
                        r = -ENOMEM;
                        goto finish;
                }
        }

        for (i = 0; i < _VARIABLE_MAX; i++) {

                if (variables[i]) {
                        if (setenv(variable_names[i], variables[i], 1) < 0) {
                                r = -errno;
                                goto finish;
                        }
                } else
                        unsetenv(variable_names[i]);
        }

        r = 0;

finish:
        for (i = 0; i < _VARIABLE_MAX; i++)
                free(variables[i]);

        return r;
}
Commit	Line	Data
72bca11b LP	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 {
97e3d13f LP	31	/* We don't list LC_ALL here on purpose. People should be
	32	* using LANG instead. */
	33
72bca11b LP	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,
72bca11b LP	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",
72bca11b LP	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
ce8a6aa1 LP	72	if ((r = parse_env_file("/proc/cmdline", WHITESPACE,
	73	#ifdef TARGET_FEDORA
	74	"LANG", &variables[VARIABLE_LANG],
	75	#endif
	76	"locale.LANG", &variables[VARIABLE_LANG],
	77	"locale.LC_CTYPE", &variables[VARIABLE_LC_CTYPE],
	78	"locale.LC_NUMERIC", &variables[VARIABLE_LC_NUMERIC],
	79	"locale.LC_TIME", &variables[VARIABLE_LC_TIME],
	80	"locale.LC_COLLATE", &variables[VARIABLE_LC_COLLATE],
	81	"locale.LC_MONETARY", &variables[VARIABLE_LC_MONETARY],
	82	"locale.LC_MESSAGES", &variables[VARIABLE_LC_MESSAGES],
	83	"locale.LC_PAPER", &variables[VARIABLE_LC_PAPER],
	84	"locale.LC_NAME", &variables[VARIABLE_LC_NAME],
	85	"locale.LC_ADDRESS", &variables[VARIABLE_LC_ADDRESS],
	86	"locale.LC_TELEPHONE", &variables[VARIABLE_LC_TELEPHONE],
	87	"locale.LC_MEASUREMENT", &variables[VARIABLE_LC_MEASUREMENT],
	88	"locale.LC_IDENTIFICATION", &variables[VARIABLE_LC_IDENTIFICATION],
	89	NULL)) < 0) {
	90
	91	if (r != -ENOENT)
	92	log_warning("Failed to read /proc/cmdline: %s", strerror(-r));
	93	}
	94
	95	/* Hmm, nothing set on the kernel cmd line? Then let's
	96	* try /etc/locale */
ce8a6aa1 LP	97	if (r <= 0 &&
	98	(r = parse_env_file("/etc/locale", NEWLINE,
	99	"LANG", &variables[VARIABLE_LANG],
	100	"LC_CTYPE", &variables[VARIABLE_LC_CTYPE],
	101	"LC_NUMERIC", &variables[VARIABLE_LC_NUMERIC],
	102	"LC_TIME", &variables[VARIABLE_LC_TIME],
	103	"LC_COLLATE", &variables[VARIABLE_LC_COLLATE],
	104	"LC_MONETARY", &variables[VARIABLE_LC_MONETARY],
	105	"LC_MESSAGES", &variables[VARIABLE_LC_MESSAGES],
	106	"LC_PAPER", &variables[VARIABLE_LC_PAPER],
	107	"LC_NAME", &variables[VARIABLE_LC_NAME],
	108	"LC_ADDRESS", &variables[VARIABLE_LC_ADDRESS],
	109	"LC_TELEPHONE", &variables[VARIABLE_LC_TELEPHONE],
	110	"LC_MEASUREMENT", &variables[VARIABLE_LC_MEASUREMENT],
	111	"LC_IDENTIFICATION", &variables[VARIABLE_LC_IDENTIFICATION],
	112	NULL)) < 0) {
	113
	114	if (r != -ENOENT)
	115	log_warning("Failed to read /etc/locale: %s", strerror(-r));
	116	}
	117
72bca11b	118	#ifdef TARGET_FEDORA
ce8a6aa1 LP	119	if (r <= 0 &&
ce8a6aa1 LP	120	(r = parse_env_file("/etc/sysconfig/i18n", NEWLINE,
72bca11b LP	121	"LANG", &variables[VARIABLE_LANG],
	122	NULL)) < 0) {
	123
	124	if (r != -ENOENT)
	125	log_warning("Failed to read /etc/sysconfig/i18n: %s", strerror(-r));
	126	}
653ab83b	127
03aeb5be KS	128	#elif defined(TARGET_SUSE)
	129	if (r <= 0 &&
	130	(r = parse_env_file("/etc/sysconfig/language", NEWLINE,
	131	"RC_LANG", &variables[VARIABLE_LANG],
	132	NULL)) < 0) {
	133
	134	if (r != -ENOENT)
	135	log_warning("Failed to read /etc/sysconfig/language: %s", strerror(-r));
	136	}
	137
f6943caa	138	#elif defined(TARGET_DEBIAN)
7472744b MB	139	if (r <= 0 &&
	140	(r = parse_env_file("/etc/default/locale", NEWLINE,
	141	"LANG", &variables[VARIABLE_LANG],
	142	NULL)) < 0) {
	143
	144	if (r != -ENOENT)
	145	log_warning("Failed to read /etc/default/locale: %s", strerror(-r));
	146	}
	147
f2fcd59f	148	#elif defined(TARGET_ARCH)
ce8a6aa1 LP	149	if (r <= 0 &&
ce8a6aa1 LP	150	(r = parse_env_file("/etc/rc.conf", NEWLINE,
97e3d13f LP	151	"LOCALE", &variables[VARIABLE_LANG],
97e3d13f LP	152	NULL)) < 0) {
f2fcd59f	153
97e3d13f LP	154	if (r != -ENOENT)
	155	log_warning("Failed to read /etc/rc.conf: %s", strerror(-r));
	156	}
653ab83b	157
918f4c69 GSB	158	#elif defined(TARGET_GENTOO)
	159	/* Gentoo's openrc expects locale variables in /etc/env.d/
	160	* These files are later compiled by env-update into shell
	161	* export commands at /etc/profile.env, with variables being
	162	* exported by openrc's runscript (so /etc/init.d/)
	163	*/
ce8a6aa1 LP	164	if (r <= 0 &&
ce8a6aa1 LP	165	(r = parse_env_file("/etc/profile.env", NEWLINE,
918f4c69 GSB	166	"export LANG", &variables[VARIABLE_LANG],
	167	"export LC_CTYPE", &variables[VARIABLE_LC_CTYPE],
	168	"export LC_NUMERIC", &variables[VARIABLE_LC_NUMERIC],
	169	"export LC_TIME", &variables[VARIABLE_LC_TIME],
	170	"export LC_COLLATE", &variables[VARIABLE_LC_COLLATE],
	171	"export LC_MONETARY", &variables[VARIABLE_LC_MONETARY],
	172	"export LC_MESSAGES", &variables[VARIABLE_LC_MESSAGES],
918f4c69 GSB	173	"export LC_PAPER", &variables[VARIABLE_LC_PAPER],
	174	"export LC_NAME", &variables[VARIABLE_LC_NAME],
	175	"export LC_ADDRESS", &variables[VARIABLE_LC_ADDRESS],
	176	"export LC_TELEPHONE", &variables[VARIABLE_LC_TELEPHONE],
	177	"export LC_MEASUREMENT", &variables[VARIABLE_LC_MEASUREMENT],
	178	"export LC_IDENTIFICATION", &variables[VARIABLE_LC_IDENTIFICATION],
	179	NULL)) < 0) {
	180
	181	if (r != -ENOENT)
	182	log_warning("Failed to read /etc/profile.env: %s", strerror(-r));
	183	}
72bca11b LP	184	#endif
72bca11b LP	185
72bca11b LP	186	if (!variables[VARIABLE_LANG]) {
	187	if (!(variables[VARIABLE_LANG] = strdup("C"))) {
	188	r = -ENOMEM;
	189	goto finish;
	190	}
	191	}
	192
	193	for (i = 0; i < _VARIABLE_MAX; i++) {
	194
8780d48d LP	195	if (variables[i]) {
	196	if (setenv(variable_names[i], variables[i], 1) < 0) {
	197	r = -errno;
	198	goto finish;
	199	}
	200	} else
	201	unsetenv(variable_names[i]);
72bca11b	202	}
8780d48d	203
72bca11b LP	204	r = 0;
	205
	206	finish:
	207	for (i = 0; i < _VARIABLE_MAX; i++)
	208	free(variables[i]);
	209
	210	return r;
	211	}