chiark / gitweb /
move libsystemd_core.la sources into core/
[elogind.git] / src / core / locale-setup.c
diff --git a/src/core/locale-setup.c b/src/core/locale-setup.c
new file mode 100644 (file)
index 0000000..7f692e9
--- /dev/null
@@ -0,0 +1,251 @@
+/*-*- 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"
+#include "virt.h"
+
+enum {
+        /* We don't list LC_ALL here on purpose. People should be
+         * using LANG instead. */
+
+        VARIABLE_LANG,
+        VARIABLE_LANGUAGE,
+        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_LANGUAGE] = "LANGUAGE",
+        [VARIABLE_LC_CTYPE] = "LC_CTYPE",
+        [VARIABLE_LC_NUMERIC] = "LC_NUMERIC",
+        [VARIABLE_LC_TIME] = "LC_TIME",
+        [VARIABLE_LC_COLLATE] = "LC_COLLATE",
+        [VARIABLE_LC_MONETARY] = "LC_MONETARY",
+        [VARIABLE_LC_MESSAGES] = "LC_MESSAGES",
+        [VARIABLE_LC_PAPER] = "LC_PAPER",
+        [VARIABLE_LC_NAME] = "LC_NAME",
+        [VARIABLE_LC_ADDRESS] = "LC_ADDRESS",
+        [VARIABLE_LC_TELEPHONE] = "LC_TELEPHONE",
+        [VARIABLE_LC_MEASUREMENT] = "LC_MEASUREMENT",
+        [VARIABLE_LC_IDENTIFICATION] = "LC_IDENTIFICATION"
+};
+
+int locale_setup(void) {
+        char *variables[_VARIABLE_MAX];
+        int r = 0, i;
+
+        zero(variables);
+
+        if (detect_container(NULL) <= 0)
+                if ((r = parse_env_file("/proc/cmdline", WHITESPACE,
+#if defined(TARGET_FEDORA) || defined(TARGET_MEEGO)
+                                        "LANG",                     &variables[VARIABLE_LANG],
+#endif
+                                        "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],
+                                        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.conf */
+        if (r <= 0 &&
+            (r = parse_env_file("/etc/locale.conf", NEWLINE,
+                               "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],
+                                NULL)) < 0) {
+
+                if (r != -ENOENT)
+                        log_warning("Failed to read /etc/locale.conf: %s", strerror(-r));
+        }
+
+#if defined(TARGET_FEDORA) || defined(TARGET_ALTLINUX) || defined(TARGET_MEEGO)
+        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) || defined(TARGET_UBUNTU) || defined(TARGET_ANGSTROM)
+        if (r <= 0 &&
+            (r = parse_env_file("/etc/default/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/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));
+        }
+#elif defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA )
+        if (r <= 0 &&
+            (r = parse_env_file("/etc/sysconfig/i18n", 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/sysconfig/i18n: %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;
+}