[thirdparty/systemd.git] / src / locale / keymap-util.c

/* SPDX-License-Identifier: LGPL-2.1+ */

#include <errno.h>
#include <stdio_ext.h>
#include <string.h>
#include <unistd.h>

#include "def.h"
#include "env-util.h"
#include "fd-util.h"
#include "fileio-label.h"
#include "fileio.h"
#include "keymap-util.h"
#include "locale-util.h"
#include "macro.h"
#include "mkdir.h"
#include "string-util.h"
#include "strv.h"

static bool startswith_comma(const char *s, const char *prefix) {
        s = startswith(s, prefix);
        if (!s)
                return false;

        return IN_SET(*s, ',', '\0');
}

static const char* strnulldash(const char *s) {
        return isempty(s) || streq(s, "-") ? NULL : s;
}

static const char* systemd_kbd_model_map(void) {
        const char* s;

        s = getenv("SYSTEMD_KBD_MODEL_MAP");
        if (s)
                return s;

        return SYSTEMD_KBD_MODEL_MAP;
}

static const char* systemd_language_fallback_map(void) {
        const char* s;

        s = getenv("SYSTEMD_LANGUAGE_FALLBACK_MAP");
        if (s)
                return s;

        return SYSTEMD_LANGUAGE_FALLBACK_MAP;
}

static void context_free_x11(Context *c) {
        c->x11_layout = mfree(c->x11_layout);
        c->x11_options = mfree(c->x11_options);
        c->x11_model = mfree(c->x11_model);
        c->x11_variant = mfree(c->x11_variant);
}

static void context_free_vconsole(Context *c) {
        c->vc_keymap = mfree(c->vc_keymap);
        c->vc_keymap_toggle = mfree(c->vc_keymap_toggle);
}

static void context_free_locale(Context *c) {
        int p;

        for (p = 0; p < _VARIABLE_LC_MAX; p++)
                c->locale[p] = mfree(c->locale[p]);
}

void context_free(Context *c) {
        context_free_locale(c);
        context_free_x11(c);
        context_free_vconsole(c);

        sd_bus_message_unref(c->locale_cache);
        sd_bus_message_unref(c->x11_cache);
        sd_bus_message_unref(c->vc_cache);
};

void locale_simplify(char *locale[_VARIABLE_LC_MAX]) {
        int p;

        for (p = VARIABLE_LANG+1; p < _VARIABLE_LC_MAX; p++)
                if (isempty(locale[p]) || streq_ptr(locale[VARIABLE_LANG], locale[p]))
                        locale[p] = mfree(locale[p]);
}

int locale_read_data(Context *c, sd_bus_message *m) {
        struct stat st;
        int r;

        /* Do not try to re-read the file within single bus operation. */
        if (m) {
                if (m == c->locale_cache)
                        return 0;

                sd_bus_message_unref(c->locale_cache);
                c->locale_cache = sd_bus_message_ref(m);
        }

        r = stat("/etc/locale.conf", &st);
        if (r < 0 && errno != ENOENT)
                return -errno;

        if (r >= 0) {
                usec_t t;

                /* If mtime is not changed, then we do not need to re-read the file. */
                t = timespec_load(&st.st_mtim);
                if (c->locale_mtime != USEC_INFINITY && t == c->locale_mtime)
                        return 0;

                c->locale_mtime = t;
                context_free_locale(c);

                r = parse_env_file(NULL, "/etc/locale.conf", NEWLINE,
                                   "LANG",              &c->locale[VARIABLE_LANG],
                                   "LANGUAGE",          &c->locale[VARIABLE_LANGUAGE],
                                   "LC_CTYPE",          &c->locale[VARIABLE_LC_CTYPE],
                                   "LC_NUMERIC",        &c->locale[VARIABLE_LC_NUMERIC],
                                   "LC_TIME",           &c->locale[VARIABLE_LC_TIME],
                                   "LC_COLLATE",        &c->locale[VARIABLE_LC_COLLATE],
                                   "LC_MONETARY",       &c->locale[VARIABLE_LC_MONETARY],
                                   "LC_MESSAGES",       &c->locale[VARIABLE_LC_MESSAGES],
                                   "LC_PAPER",          &c->locale[VARIABLE_LC_PAPER],
                                   "LC_NAME",           &c->locale[VARIABLE_LC_NAME],
                                   "LC_ADDRESS",        &c->locale[VARIABLE_LC_ADDRESS],
                                   "LC_TELEPHONE",      &c->locale[VARIABLE_LC_TELEPHONE],
                                   "LC_MEASUREMENT",    &c->locale[VARIABLE_LC_MEASUREMENT],
                                   "LC_IDENTIFICATION", &c->locale[VARIABLE_LC_IDENTIFICATION],
                                   NULL);
                if (r < 0)
                        return r;
        } else {
                int p;

                c->locale_mtime = USEC_INFINITY;
                context_free_locale(c);

                /* Fill in what we got passed from systemd. */
                for (p = 0; p < _VARIABLE_LC_MAX; p++) {
                        const char *name;

                        name = locale_variable_to_string(p);
                        assert(name);

                        r = free_and_strdup(&c->locale[p], empty_to_null(getenv(name)));
                        if (r < 0)
                                return r;
                }
        }

        locale_simplify(c->locale);
        return 0;
}

int vconsole_read_data(Context *c, sd_bus_message *m) {
        struct stat st;
        usec_t t;
        int r;

        /* Do not try to re-read the file within single bus operation. */
        if (m) {
                if (m == c->vc_cache)
                        return 0;

                sd_bus_message_unref(c->vc_cache);
                c->vc_cache = sd_bus_message_ref(m);
        }

        if (stat("/etc/vconsole.conf", &st) < 0) {
                if (errno != ENOENT)
                        return -errno;

                c->vc_mtime = USEC_INFINITY;
                context_free_vconsole(c);
                return 0;
        }

        /* If mtime is not changed, then we do not need to re-read */
        t = timespec_load(&st.st_mtim);
        if (c->vc_mtime != USEC_INFINITY && t == c->vc_mtime)
                return 0;

        c->vc_mtime = t;
        context_free_vconsole(c);

        r = parse_env_file(NULL, "/etc/vconsole.conf", NEWLINE,
                           "KEYMAP",        &c->vc_keymap,
                           "KEYMAP_TOGGLE", &c->vc_keymap_toggle,
                           NULL);
        if (r < 0)
                return r;

        return 0;
}

int x11_read_data(Context *c, sd_bus_message *m) {
        _cleanup_fclose_ FILE *f = NULL;
        bool in_section = false;
        char line[LINE_MAX];
        struct stat st;
        usec_t t;
        int r;

        /* Do not try to re-read the file within single bus operation. */
        if (m) {
                if (m == c->x11_cache)
                        return 0;

                sd_bus_message_unref(c->x11_cache);
                c->x11_cache = sd_bus_message_ref(m);
        }

        if (stat("/etc/X11/xorg.conf.d/00-keyboard.conf", &st) < 0) {
                if (errno != ENOENT)
                        return -errno;

                c->x11_mtime = USEC_INFINITY;
                context_free_x11(c);
                return 0;
        }

        /* If mtime is not changed, then we do not need to re-read */
        t = timespec_load(&st.st_mtim);
        if (c->x11_mtime != USEC_INFINITY && t == c->x11_mtime)
                return 0;

        c->x11_mtime = t;
        context_free_x11(c);

        f = fopen("/etc/X11/xorg.conf.d/00-keyboard.conf", "re");
        if (!f)
                return -errno;

        while (fgets(line, sizeof(line), f)) {
                char *l;

                char_array_0(line);
                l = strstrip(line);

                if (IN_SET(l[0], 0, '#'))
                        continue;

                if (in_section && first_word(l, "Option")) {
                        _cleanup_strv_free_ char **a = NULL;

                        r = strv_split_extract(&a, l, WHITESPACE, EXTRACT_QUOTES);
                        if (r < 0)
                                return r;

                        if (strv_length(a) == 3) {
                                char **p = NULL;

                                if (streq(a[1], "XkbLayout"))
                                        p = &c->x11_layout;
                                else if (streq(a[1], "XkbModel"))
                                        p = &c->x11_model;
                                else if (streq(a[1], "XkbVariant"))
                                        p = &c->x11_variant;
                                else if (streq(a[1], "XkbOptions"))
                                        p = &c->x11_options;

                                if (p) {
                                        free_and_replace(*p, a[2]);
                                }
                        }

                } else if (!in_section && first_word(l, "Section")) {
                        _cleanup_strv_free_ char **a = NULL;

                        r = strv_split_extract(&a, l, WHITESPACE, EXTRACT_QUOTES);
                        if (r < 0)
                                return -ENOMEM;

                        if (strv_length(a) == 2 && streq(a[1], "InputClass"))
                                in_section = true;

                } else if (in_section && first_word(l, "EndSection"))
                        in_section = false;
        }

        return 0;
}

int locale_write_data(Context *c, char ***settings) {
        _cleanup_strv_free_ char **l = NULL;
        struct stat st;
        int r, p;

        /* Set values will be returned as strv in *settings on success. */

        for (p = 0; p < _VARIABLE_LC_MAX; p++) {
                _cleanup_free_ char *t = NULL;
                char **u;
                const char *name;

                name = locale_variable_to_string(p);
                assert(name);

                if (isempty(c->locale[p]))
                        continue;

                if (asprintf(&t, "%s=%s", name, c->locale[p]) < 0)
                        return -ENOMEM;

                u = strv_env_set(l, t);
                if (!u)
                        return -ENOMEM;

                strv_free_and_replace(l, u);
        }

        if (strv_isempty(l)) {
                if (unlink("/etc/locale.conf") < 0)
                        return errno == ENOENT ? 0 : -errno;

                c->locale_mtime = USEC_INFINITY;
                return 0;
        }

        r = write_env_file_label("/etc/locale.conf", l);
        if (r < 0)
                return r;

        *settings = TAKE_PTR(l);

        if (stat("/etc/locale.conf", &st) >= 0)
                c->locale_mtime = timespec_load(&st.st_mtim);

        return 0;
}

int vconsole_write_data(Context *c) {
        _cleanup_strv_free_ char **l = NULL;
        struct stat st;
        int r;

        r = load_env_file(NULL, "/etc/vconsole.conf", NULL, &l);
        if (r < 0 && r != -ENOENT)
                return r;

        if (isempty(c->vc_keymap))
                l = strv_env_unset(l, "KEYMAP");
        else {
                _cleanup_free_ char *s = NULL;
                char **u;

                s = strappend("KEYMAP=", c->vc_keymap);
                if (!s)
                        return -ENOMEM;

                u = strv_env_set(l, s);
                if (!u)
                        return -ENOMEM;

                strv_free_and_replace(l, u);
        }

        if (isempty(c->vc_keymap_toggle))
                l = strv_env_unset(l, "KEYMAP_TOGGLE");
        else  {
                _cleanup_free_ char *s = NULL;
                char **u;

                s = strappend("KEYMAP_TOGGLE=", c->vc_keymap_toggle);
                if (!s)
                        return -ENOMEM;

                u = strv_env_set(l, s);
                if (!u)
                        return -ENOMEM;

                strv_free_and_replace(l, u);
        }

        if (strv_isempty(l)) {
                if (unlink("/etc/vconsole.conf") < 0)
                        return errno == ENOENT ? 0 : -errno;

                c->vc_mtime = USEC_INFINITY;
                return 0;
        }

        r = write_env_file_label("/etc/vconsole.conf", l);
        if (r < 0)
                return r;

        if (stat("/etc/vconsole.conf", &st) >= 0)
                c->vc_mtime = timespec_load(&st.st_mtim);

        return 0;
}

int x11_write_data(Context *c) {
        _cleanup_fclose_ FILE *f = NULL;
        _cleanup_free_ char *temp_path = NULL;
        struct stat st;
        int r;

        if (isempty(c->x11_layout) &&
            isempty(c->x11_model) &&
            isempty(c->x11_variant) &&
            isempty(c->x11_options)) {

                if (unlink("/etc/X11/xorg.conf.d/00-keyboard.conf") < 0)
                        return errno == ENOENT ? 0 : -errno;

                c->vc_mtime = USEC_INFINITY;
                return 0;
        }

        mkdir_p_label("/etc/X11/xorg.conf.d", 0755);

        r = fopen_temporary("/etc/X11/xorg.conf.d/00-keyboard.conf", &f, &temp_path);
        if (r < 0)
                return r;

        (void) __fsetlocking(f, FSETLOCKING_BYCALLER);
        (void) fchmod(fileno(f), 0644);

        fputs("# Written by systemd-localed(8), read by systemd-localed and Xorg. It's\n"
              "# probably wise not to edit this file manually. Use localectl(1) to\n"
              "# instruct systemd-localed to update it.\n"
              "Section \"InputClass\"\n"
              "        Identifier \"system-keyboard\"\n"
              "        MatchIsKeyboard \"on\"\n", f);

        if (!isempty(c->x11_layout))
                fprintf(f, "        Option \"XkbLayout\" \"%s\"\n", c->x11_layout);

        if (!isempty(c->x11_model))
                fprintf(f, "        Option \"XkbModel\" \"%s\"\n", c->x11_model);

        if (!isempty(c->x11_variant))
                fprintf(f, "        Option \"XkbVariant\" \"%s\"\n", c->x11_variant);

        if (!isempty(c->x11_options))
                fprintf(f, "        Option \"XkbOptions\" \"%s\"\n", c->x11_options);

        fputs("EndSection\n", f);

        r = fflush_sync_and_check(f);
        if (r < 0)
                goto fail;

        if (rename(temp_path, "/etc/X11/xorg.conf.d/00-keyboard.conf") < 0) {
                r = -errno;
                goto fail;
        }

        if (stat("/etc/X11/xorg.conf.d/00-keyboard.conf", &st) >= 0)
                c->x11_mtime = timespec_load(&st.st_mtim);

        return 0;

fail:
        if (temp_path)
                (void) unlink(temp_path);

        return r;
}

static int read_next_mapping(const char* filename,
                             unsigned min_fields, unsigned max_fields,
                             FILE *f, unsigned *n, char ***a) {
        assert(f);
        assert(n);
        assert(a);

        for (;;) {
                char line[LINE_MAX];
                char *l, **b;
                int r;
                size_t length;

                errno = 0;
                if (!fgets(line, sizeof(line), f)) {

                        if (ferror(f))
                                return errno > 0 ? -errno : -EIO;

                        return 0;
                }

                (*n)++;

                l = strstrip(line);
                if (IN_SET(l[0], 0, '#'))
                        continue;

                r = strv_split_extract(&b, l, WHITESPACE, EXTRACT_QUOTES);
                if (r < 0)
                        return r;

                length = strv_length(b);
                if (length < min_fields || length > max_fields) {
                        log_error("Invalid line %s:%u, ignoring.", filename, *n);
                        strv_free(b);
                        continue;

                }

                *a = b;
                return 1;
        }
}

int vconsole_convert_to_x11(Context *c) {
        const char *map;
        int modified = -1;

        map = systemd_kbd_model_map();

        if (isempty(c->vc_keymap)) {
                modified =
                        !isempty(c->x11_layout) ||
                        !isempty(c->x11_model) ||
                        !isempty(c->x11_variant) ||
                        !isempty(c->x11_options);

                context_free_x11(c);
        } else {
                _cleanup_fclose_ FILE *f = NULL;
                unsigned n = 0;

                f = fopen(map, "re");
                if (!f)
                        return -errno;

                for (;;) {
                        _cleanup_strv_free_ char **a = NULL;
                        int r;

                        r = read_next_mapping(map, 5, UINT_MAX, f, &n, &a);
                        if (r < 0)
                                return r;
                        if (r == 0)
                                break;

                        if (!streq(c->vc_keymap, a[0]))
                                continue;

                        if (!streq_ptr(c->x11_layout, strnulldash(a[1])) ||
                            !streq_ptr(c->x11_model, strnulldash(a[2])) ||
                            !streq_ptr(c->x11_variant, strnulldash(a[3])) ||
                            !streq_ptr(c->x11_options, strnulldash(a[4]))) {

                                if (free_and_strdup(&c->x11_layout, strnulldash(a[1])) < 0 ||
                                    free_and_strdup(&c->x11_model, strnulldash(a[2])) < 0 ||
                                    free_and_strdup(&c->x11_variant, strnulldash(a[3])) < 0 ||
                                    free_and_strdup(&c->x11_options, strnulldash(a[4])) < 0)
                                        return -ENOMEM;

                                modified = true;
                        }

                        break;
                }
        }

        if (modified > 0)
                log_info("Changing X11 keyboard layout to '%s' model '%s' variant '%s' options '%s'",
                         strempty(c->x11_layout),
                         strempty(c->x11_model),
                         strempty(c->x11_variant),
                         strempty(c->x11_options));
        else if (modified < 0)
                log_notice("X11 keyboard layout was not modified: no conversion found for \"%s\".",
                           c->vc_keymap);
        else
                log_debug("X11 keyboard layout did not need to be modified.");

        return modified > 0;
}

int find_converted_keymap(const char *x11_layout, const char *x11_variant, char **new_keymap) {
        const char *dir;
        _cleanup_free_ char *n;

        if (x11_variant)
                n = strjoin(x11_layout, "-", x11_variant);
        else
                n = strdup(x11_layout);
        if (!n)
                return -ENOMEM;

        NULSTR_FOREACH(dir, KBD_KEYMAP_DIRS) {
                _cleanup_free_ char *p = NULL, *pz = NULL;
                bool uncompressed;

                p = strjoin(dir, "xkb/", n, ".map");
                pz = strjoin(dir, "xkb/", n, ".map.gz");
                if (!p || !pz)
                        return -ENOMEM;

                uncompressed = access(p, F_OK) == 0;
                if (uncompressed || access(pz, F_OK) == 0) {
                        log_debug("Found converted keymap %s at %s",
                                  n, uncompressed ? p : pz);

                        *new_keymap = TAKE_PTR(n);
                        return 1;
                }
        }

        return 0;
}

int find_legacy_keymap(Context *c, char **ret) {
        const char *map;
        _cleanup_fclose_ FILE *f = NULL;
        _cleanup_free_ char *new_keymap = NULL;
        unsigned n = 0;
        unsigned best_matching = 0;
        int r;

        assert(!isempty(c->x11_layout));

        map = systemd_kbd_model_map();

        f = fopen(map, "re");
        if (!f)
                return -errno;

        for (;;) {
                _cleanup_strv_free_ char **a = NULL;
                unsigned matching = 0;

                r = read_next_mapping(map, 5, UINT_MAX, f, &n, &a);
                if (r < 0)
                        return r;
                if (r == 0)
                        break;

                /* Determine how well matching this entry is */
                if (streq(c->x11_layout, a[1]))
                        /* If we got an exact match, this is best */
                        matching = 10;
                else {
                        /* We have multiple X layouts, look for an
                         * entry that matches our key with everything
                         * but the first layout stripped off. */
                        if (startswith_comma(c->x11_layout, a[1]))
                                matching = 5;
                        else  {
                                char *x;

                                /* If that didn't work, strip off the
                                 * other layouts from the entry, too */
                                x = strndupa(a[1], strcspn(a[1], ","));
                                if (startswith_comma(c->x11_layout, x))
                                        matching = 1;
                        }
                }

                if (matching > 0) {
                        if (isempty(c->x11_model) || streq_ptr(c->x11_model, a[2])) {
                                matching++;

                                if (streq_ptr(c->x11_variant, a[3])) {
                                        matching++;

                                        if (streq_ptr(c->x11_options, a[4]))
                                                matching++;
                                }
                        }
                }

                /* The best matching entry so far, then let's save that */
                if (matching >= MAX(best_matching, 1u)) {
                        log_debug("Found legacy keymap %s with score %u",
                                  a[0], matching);

                        if (matching > best_matching) {
                                best_matching = matching;

                                r = free_and_strdup(&new_keymap, a[0]);
                                if (r < 0)
                                        return r;
                        }
                }
        }

        if (best_matching < 10 && c->x11_layout) {
                /* The best match is only the first part of the X11
                 * keymap. Check if we have a converted map which
                 * matches just the first layout.
                 */
                char *l, *v = NULL, *converted;

                l = strndupa(c->x11_layout, strcspn(c->x11_layout, ","));
                if (c->x11_variant)
                        v = strndupa(c->x11_variant, strcspn(c->x11_variant, ","));
                r = find_converted_keymap(l, v, &converted);
                if (r < 0)
                        return r;
                if (r > 0)
                        free_and_replace(new_keymap, converted);
        }

        *ret = TAKE_PTR(new_keymap);
        return (bool) *ret;
}

int find_language_fallback(const char *lang, char **language) {
        const char *map;
        _cleanup_fclose_ FILE *f = NULL;
        unsigned n = 0;

        assert(lang);
        assert(language);

        map = systemd_language_fallback_map();

        f = fopen(map, "re");
        if (!f)
                return -errno;

        for (;;) {
                _cleanup_strv_free_ char **a = NULL;
                int r;

                r = read_next_mapping(map, 2, 2, f, &n, &a);
                if (r <= 0)
                        return r;

                if (streq(lang, a[0])) {
                        assert(strv_length(a) == 2);
                        *language = TAKE_PTR(a[1]);
                        return 1;
                }
        }

        assert_not_reached("should not be here");
}

int x11_convert_to_vconsole(Context *c) {
        bool modified = false;

        if (isempty(c->x11_layout)) {
                modified =
                        !isempty(c->vc_keymap) ||
                        !isempty(c->vc_keymap_toggle);

                context_free_vconsole(c);
        } else {
                _cleanup_free_ char *new_keymap = NULL;
                int r;

                r = find_converted_keymap(c->x11_layout, c->x11_variant, &new_keymap);
                if (r < 0)
                        return r;
                else if (r == 0) {
                        r = find_legacy_keymap(c, &new_keymap);
                        if (r < 0)
                                return r;
                }
                if (r == 0)
                        /* We search for layout-variant match first, but then we also look
                         * for anything which matches just the layout. So it's accurate to say
                         * that we couldn't find anything which matches the layout. */
                        log_notice("No conversion to virtual console map found for \"%s\".",
                                   c->x11_layout);

                if (!streq_ptr(c->vc_keymap, new_keymap)) {
                        free_and_replace(c->vc_keymap, new_keymap);
                        c->vc_keymap_toggle = mfree(c->vc_keymap_toggle);
                        modified = true;
                }
        }

        if (modified)
                log_info("Changing virtual console keymap to '%s' toggle '%s'",
                         strempty(c->vc_keymap), strempty(c->vc_keymap_toggle));
        else
                log_debug("Virtual console keymap was not modified.");

        return modified;
}
Commit	Line	Data
53e1b683	1	/* SPDX-License-Identifier: LGPL-2.1+ */
4897d1dc ZJS	2
4897d1dc ZJS	3	#include <errno.h>
0d536673	4	#include <stdio_ext.h>
4897d1dc ZJS	5	#include <string.h>
	6	#include <unistd.h>
	7
	8	#include "def.h"
	9	#include "env-util.h"
	10	#include "fd-util.h"
	11	#include "fileio-label.h"
	12	#include "fileio.h"
	13	#include "keymap-util.h"
	14	#include "locale-util.h"
	15	#include "macro.h"
	16	#include "mkdir.h"
	17	#include "string-util.h"
	18	#include "strv.h"
	19
	20	static bool startswith_comma(const char s, const char prefix) {
5ad327dd ZJS	21	s = startswith(s, prefix);
	22	if (!s)
	23	return false;
4897d1dc	24
4c701096	25	return IN_SET(*s, ',', '\0');
4897d1dc ZJS	26	}
	27
	28	static const char* strnulldash(const char *s) {
	29	return isempty(s) \|\| streq(s, "-") ? NULL : s;
	30	}
	31
cabffaf8 ZJS	32	static const char* systemd_kbd_model_map(void) {
	33	const char* s;
	34
	35	s = getenv("SYSTEMD_KBD_MODEL_MAP");
	36	if (s)
	37	return s;
	38
	39	return SYSTEMD_KBD_MODEL_MAP;
	40	}
	41
	42	static const char* systemd_language_fallback_map(void) {
	43	const char* s;
	44
	45	s = getenv("SYSTEMD_LANGUAGE_FALLBACK_MAP");
	46	if (s)
	47	return s;
	48
	49	return SYSTEMD_LANGUAGE_FALLBACK_MAP;
	50	}
	51
4897d1dc ZJS	52	static void context_free_x11(Context *c) {
	53	c->x11_layout = mfree(c->x11_layout);
	54	c->x11_options = mfree(c->x11_options);
	55	c->x11_model = mfree(c->x11_model);
	56	c->x11_variant = mfree(c->x11_variant);
	57	}
	58
	59	static void context_free_vconsole(Context *c) {
	60	c->vc_keymap = mfree(c->vc_keymap);
	61	c->vc_keymap_toggle = mfree(c->vc_keymap_toggle);
	62	}
	63
	64	static void context_free_locale(Context *c) {
	65	int p;
	66
	67	for (p = 0; p < _VARIABLE_LC_MAX; p++)
	68	c->locale[p] = mfree(c->locale[p]);
	69	}
	70
	71	void context_free(Context *c) {
	72	context_free_locale(c);
	73	context_free_x11(c);
	74	context_free_vconsole(c);
65d34266 YW	75
	76	sd_bus_message_unref(c->locale_cache);
	77	sd_bus_message_unref(c->x11_cache);
	78	sd_bus_message_unref(c->vc_cache);
4897d1dc ZJS	79	};
4897d1dc ZJS	80
df4fd2c7	81	void locale_simplify(char *locale[_VARIABLE_LC_MAX]) {
4897d1dc ZJS	82	int p;
	83
	84	for (p = VARIABLE_LANG+1; p < _VARIABLE_LC_MAX; p++)
df4fd2c7 YW	85	if (isempty(locale[p]) \|\| streq_ptr(locale[VARIABLE_LANG], locale[p]))
df4fd2c7 YW	86	locale[p] = mfree(locale[p]);
4897d1dc ZJS	87	}
4897d1dc ZJS	88
df4fd2c7 YW	89	int locale_read_data(Context c, sd_bus_message m) {
df4fd2c7 YW	90	struct stat st;
4897d1dc ZJS	91	int r;
4897d1dc ZJS	92
df4fd2c7	93	/* Do not try to re-read the file within single bus operation. */
65d34266 YW	94	if (m) {
	95	if (m == c->locale_cache)
	96	return 0;
4897d1dc	97
65d34266 YW	98	sd_bus_message_unref(c->locale_cache);
	99	c->locale_cache = sd_bus_message_ref(m);
	100	}
df4fd2c7 YW	101
	102	r = stat("/etc/locale.conf", &st);
	103	if (r < 0 && errno != ENOENT)
	104	return -errno;
	105
	106	if (r >= 0) {
	107	usec_t t;
	108
	109	/* If mtime is not changed, then we do not need to re-read the file. */
	110	t = timespec_load(&st.st_mtim);
	111	if (c->locale_mtime != USEC_INFINITY && t == c->locale_mtime)
	112	return 0;
4897d1dc	113
df4fd2c7 YW	114	c->locale_mtime = t;
	115	context_free_locale(c);
	116
	117	r = parse_env_file(NULL, "/etc/locale.conf", NEWLINE,
	118	"LANG", &c->locale[VARIABLE_LANG],
	119	"LANGUAGE", &c->locale[VARIABLE_LANGUAGE],
	120	"LC_CTYPE", &c->locale[VARIABLE_LC_CTYPE],
	121	"LC_NUMERIC", &c->locale[VARIABLE_LC_NUMERIC],
	122	"LC_TIME", &c->locale[VARIABLE_LC_TIME],
	123	"LC_COLLATE", &c->locale[VARIABLE_LC_COLLATE],
	124	"LC_MONETARY", &c->locale[VARIABLE_LC_MONETARY],
	125	"LC_MESSAGES", &c->locale[VARIABLE_LC_MESSAGES],
	126	"LC_PAPER", &c->locale[VARIABLE_LC_PAPER],
	127	"LC_NAME", &c->locale[VARIABLE_LC_NAME],
	128	"LC_ADDRESS", &c->locale[VARIABLE_LC_ADDRESS],
	129	"LC_TELEPHONE", &c->locale[VARIABLE_LC_TELEPHONE],
	130	"LC_MEASUREMENT", &c->locale[VARIABLE_LC_MEASUREMENT],
	131	"LC_IDENTIFICATION", &c->locale[VARIABLE_LC_IDENTIFICATION],
	132	NULL);
	133	if (r < 0)
	134	return r;
	135	} else {
4897d1dc ZJS	136	int p;
4897d1dc ZJS	137
df4fd2c7 YW	138	c->locale_mtime = USEC_INFINITY;
	139	context_free_locale(c);
	140
4897d1dc ZJS	141	/* Fill in what we got passed from systemd. */
	142	for (p = 0; p < _VARIABLE_LC_MAX; p++) {
	143	const char *name;
	144
	145	name = locale_variable_to_string(p);
	146	assert(name);
	147
	148	r = free_and_strdup(&c->locale[p], empty_to_null(getenv(name)));
	149	if (r < 0)
	150	return r;
	151	}
4897d1dc ZJS	152	}
4897d1dc ZJS	153
df4fd2c7 YW	154	locale_simplify(c->locale);
df4fd2c7 YW	155	return 0;
4897d1dc ZJS	156	}
4897d1dc ZJS	157
df4fd2c7 YW	158	int vconsole_read_data(Context c, sd_bus_message m) {
	159	struct stat st;
	160	usec_t t;
4897d1dc ZJS	161	int r;
4897d1dc ZJS	162
df4fd2c7	163	/* Do not try to re-read the file within single bus operation. */
65d34266 YW	164	if (m) {
	165	if (m == c->vc_cache)
	166	return 0;
df4fd2c7	167
65d34266 YW	168	sd_bus_message_unref(c->vc_cache);
	169	c->vc_cache = sd_bus_message_ref(m);
	170	}
df4fd2c7 YW	171
	172	if (stat("/etc/vconsole.conf", &st) < 0) {
	173	if (errno != ENOENT)
	174	return -errno;
	175
	176	c->vc_mtime = USEC_INFINITY;
	177	context_free_vconsole(c);
	178	return 0;
	179	}
	180
	181	/* If mtime is not changed, then we do not need to re-read */
	182	t = timespec_load(&st.st_mtim);
	183	if (c->vc_mtime != USEC_INFINITY && t == c->vc_mtime)
	184	return 0;
	185
	186	c->vc_mtime = t;
4897d1dc ZJS	187	context_free_vconsole(c);
4897d1dc ZJS	188
1a5a177e	189	r = parse_env_file(NULL, "/etc/vconsole.conf", NEWLINE,
4897d1dc ZJS	190	"KEYMAP", &c->vc_keymap,
	191	"KEYMAP_TOGGLE", &c->vc_keymap_toggle,
	192	NULL);
df4fd2c7	193	if (r < 0)
4897d1dc ZJS	194	return r;
	195
	196	return 0;
	197	}
	198
df4fd2c7 YW	199	int x11_read_data(Context c, sd_bus_message m) {
df4fd2c7 YW	200	_cleanup_fclose_ FILE *f = NULL;
4897d1dc	201	bool in_section = false;
df4fd2c7 YW	202	char line[LINE_MAX];
	203	struct stat st;
	204	usec_t t;
4897d1dc ZJS	205	int r;
4897d1dc ZJS	206
df4fd2c7	207	/* Do not try to re-read the file within single bus operation. */
65d34266 YW	208	if (m) {
	209	if (m == c->x11_cache)
	210	return 0;
df4fd2c7	211
65d34266 YW	212	sd_bus_message_unref(c->x11_cache);
	213	c->x11_cache = sd_bus_message_ref(m);
	214	}
df4fd2c7 YW	215
	216	if (stat("/etc/X11/xorg.conf.d/00-keyboard.conf", &st) < 0) {
	217	if (errno != ENOENT)
	218	return -errno;
	219
	220	c->x11_mtime = USEC_INFINITY;
	221	context_free_x11(c);
	222	return 0;
	223	}
	224
	225	/* If mtime is not changed, then we do not need to re-read */
	226	t = timespec_load(&st.st_mtim);
	227	if (c->x11_mtime != USEC_INFINITY && t == c->x11_mtime)
	228	return 0;
	229
	230	c->x11_mtime = t;
4897d1dc ZJS	231	context_free_x11(c);
	232
	233	f = fopen("/etc/X11/xorg.conf.d/00-keyboard.conf", "re");
	234	if (!f)
df4fd2c7	235	return -errno;
4897d1dc ZJS	236
	237	while (fgets(line, sizeof(line), f)) {
	238	char *l;
	239
	240	char_array_0(line);
	241	l = strstrip(line);
	242
4c701096	243	if (IN_SET(l[0], 0, '#'))
4897d1dc ZJS	244	continue;
	245
	246	if (in_section && first_word(l, "Option")) {
	247	_cleanup_strv_free_ char **a = NULL;
	248
	249	r = strv_split_extract(&a, l, WHITESPACE, EXTRACT_QUOTES);
	250	if (r < 0)
	251	return r;
	252
	253	if (strv_length(a) == 3) {
	254	char **p = NULL;
	255
	256	if (streq(a[1], "XkbLayout"))
	257	p = &c->x11_layout;
	258	else if (streq(a[1], "XkbModel"))
	259	p = &c->x11_model;
	260	else if (streq(a[1], "XkbVariant"))
	261	p = &c->x11_variant;
	262	else if (streq(a[1], "XkbOptions"))
	263	p = &c->x11_options;
	264
	265	if (p) {
f9ecfd3b	266	free_and_replace(*p, a[2]);
4897d1dc ZJS	267	}
	268	}
	269
	270	} else if (!in_section && first_word(l, "Section")) {
	271	_cleanup_strv_free_ char **a = NULL;
	272
	273	r = strv_split_extract(&a, l, WHITESPACE, EXTRACT_QUOTES);
	274	if (r < 0)
	275	return -ENOMEM;
	276
	277	if (strv_length(a) == 2 && streq(a[1], "InputClass"))
	278	in_section = true;
	279
	280	} else if (in_section && first_word(l, "EndSection"))
	281	in_section = false;
	282	}
	283
	284	return 0;
	285	}
	286
4897d1dc	287	int locale_write_data(Context c, char **settings) {
4897d1dc	288	_cleanup_strv_free_ char **l = NULL;
df4fd2c7 YW	289	struct stat st;
df4fd2c7 YW	290	int r, p;
4897d1dc ZJS	291
	292	/* Set values will be returned as strv in settings on success. /
	293
4897d1dc ZJS	294	for (p = 0; p < _VARIABLE_LC_MAX; p++) {
	295	_cleanup_free_ char *t = NULL;
	296	char **u;
	297	const char *name;
	298
	299	name = locale_variable_to_string(p);
	300	assert(name);
	301
df4fd2c7	302	if (isempty(c->locale[p]))
4897d1dc	303	continue;
4897d1dc ZJS	304
	305	if (asprintf(&t, "%s=%s", name, c->locale[p]) < 0)
	306	return -ENOMEM;
	307
	308	u = strv_env_set(l, t);
	309	if (!u)
	310	return -ENOMEM;
	311
130d3d22	312	strv_free_and_replace(l, u);
4897d1dc ZJS	313	}
	314
	315	if (strv_isempty(l)) {
	316	if (unlink("/etc/locale.conf") < 0)
	317	return errno == ENOENT ? 0 : -errno;
	318
df4fd2c7	319	c->locale_mtime = USEC_INFINITY;
4897d1dc ZJS	320	return 0;
	321	}
	322
	323	r = write_env_file_label("/etc/locale.conf", l);
	324	if (r < 0)
	325	return r;
	326
ae2a15bc	327	*settings = TAKE_PTR(l);
df4fd2c7 YW	328
	329	if (stat("/etc/locale.conf", &st) >= 0)
	330	c->locale_mtime = timespec_load(&st.st_mtim);
	331
4897d1dc ZJS	332	return 0;
	333	}
	334
	335	int vconsole_write_data(Context *c) {
4897d1dc	336	_cleanup_strv_free_ char **l = NULL;
df4fd2c7 YW	337	struct stat st;
df4fd2c7 YW	338	int r;
4897d1dc ZJS	339
	340	r = load_env_file(NULL, "/etc/vconsole.conf", NULL, &l);
	341	if (r < 0 && r != -ENOENT)
	342	return r;
	343
	344	if (isempty(c->vc_keymap))
	345	l = strv_env_unset(l, "KEYMAP");
	346	else {
	347	_cleanup_free_ char *s = NULL;
	348	char **u;
	349
	350	s = strappend("KEYMAP=", c->vc_keymap);
	351	if (!s)
	352	return -ENOMEM;
	353
	354	u = strv_env_set(l, s);
	355	if (!u)
	356	return -ENOMEM;
	357
130d3d22	358	strv_free_and_replace(l, u);
4897d1dc ZJS	359	}
	360
	361	if (isempty(c->vc_keymap_toggle))
	362	l = strv_env_unset(l, "KEYMAP_TOGGLE");
	363	else {
	364	_cleanup_free_ char *s = NULL;
	365	char **u;
	366
	367	s = strappend("KEYMAP_TOGGLE=", c->vc_keymap_toggle);
	368	if (!s)
	369	return -ENOMEM;
	370
	371	u = strv_env_set(l, s);
	372	if (!u)
	373	return -ENOMEM;
	374
130d3d22	375	strv_free_and_replace(l, u);
4897d1dc ZJS	376	}
	377
	378	if (strv_isempty(l)) {
	379	if (unlink("/etc/vconsole.conf") < 0)
	380	return errno == ENOENT ? 0 : -errno;
	381
df4fd2c7	382	c->vc_mtime = USEC_INFINITY;
4897d1dc ZJS	383	return 0;
	384	}
	385
df4fd2c7 YW	386	r = write_env_file_label("/etc/vconsole.conf", l);
	387	if (r < 0)
	388	return r;
	389
	390	if (stat("/etc/vconsole.conf", &st) >= 0)
	391	c->vc_mtime = timespec_load(&st.st_mtim);
	392
	393	return 0;
4897d1dc ZJS	394	}
	395
	396	int x11_write_data(Context *c) {
	397	_cleanup_fclose_ FILE *f = NULL;
	398	_cleanup_free_ char *temp_path = NULL;
df4fd2c7	399	struct stat st;
4897d1dc ZJS	400	int r;
	401
	402	if (isempty(c->x11_layout) &&
	403	isempty(c->x11_model) &&
	404	isempty(c->x11_variant) &&
	405	isempty(c->x11_options)) {
	406
	407	if (unlink("/etc/X11/xorg.conf.d/00-keyboard.conf") < 0)
	408	return errno == ENOENT ? 0 : -errno;
	409
df4fd2c7	410	c->vc_mtime = USEC_INFINITY;
4897d1dc ZJS	411	return 0;
	412	}
	413
	414	mkdir_p_label("/etc/X11/xorg.conf.d", 0755);
	415
	416	r = fopen_temporary("/etc/X11/xorg.conf.d/00-keyboard.conf", &f, &temp_path);
	417	if (r < 0)
	418	return r;
	419
0d536673 LP	420	(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
0d536673 LP	421	(void) fchmod(fileno(f), 0644);
4897d1dc	422
0d536673 LP	423	fputs("# Written by systemd-localed(8), read by systemd-localed and Xorg. It's\n"
	424	"# probably wise not to edit this file manually. Use localectl(1) to\n"
	425	"# instruct systemd-localed to update it.\n"
	426	"Section \"InputClass\"\n"
	427	" Identifier \"system-keyboard\"\n"
	428	" MatchIsKeyboard \"on\"\n", f);
4897d1dc ZJS	429
	430	if (!isempty(c->x11_layout))
	431	fprintf(f, " Option \"XkbLayout\" \"%s\"\n", c->x11_layout);
	432
	433	if (!isempty(c->x11_model))
	434	fprintf(f, " Option \"XkbModel\" \"%s\"\n", c->x11_model);
	435
	436	if (!isempty(c->x11_variant))
	437	fprintf(f, " Option \"XkbVariant\" \"%s\"\n", c->x11_variant);
	438
	439	if (!isempty(c->x11_options))
	440	fprintf(f, " Option \"XkbOptions\" \"%s\"\n", c->x11_options);
	441
0d536673	442	fputs("EndSection\n", f);
4897d1dc	443
0675e94a	444	r = fflush_sync_and_check(f);
4897d1dc ZJS	445	if (r < 0)
	446	goto fail;
	447
	448	if (rename(temp_path, "/etc/X11/xorg.conf.d/00-keyboard.conf") < 0) {
	449	r = -errno;
	450	goto fail;
	451	}
	452
df4fd2c7 YW	453	if (stat("/etc/X11/xorg.conf.d/00-keyboard.conf", &st) >= 0)
	454	c->x11_mtime = timespec_load(&st.st_mtim);
	455
4897d1dc ZJS	456	return 0;
	457
	458	fail:
4897d1dc ZJS	459	if (temp_path)
	460	(void) unlink(temp_path);
	461
	462	return r;
	463	}
	464
	465	static int read_next_mapping(const char* filename,
	466	unsigned min_fields, unsigned max_fields,
	467	FILE f, unsigned n, char ***a) {
	468	assert(f);
	469	assert(n);
	470	assert(a);
	471
	472	for (;;) {
	473	char line[LINE_MAX];
	474	char l, *b;
	475	int r;
	476	size_t length;
	477
	478	errno = 0;
	479	if (!fgets(line, sizeof(line), f)) {
	480
	481	if (ferror(f))
	482	return errno > 0 ? -errno : -EIO;
	483
	484	return 0;
	485	}
	486
	487	(*n)++;
	488
	489	l = strstrip(line);
4c701096	490	if (IN_SET(l[0], 0, '#'))
4897d1dc ZJS	491	continue;
	492
	493	r = strv_split_extract(&b, l, WHITESPACE, EXTRACT_QUOTES);
	494	if (r < 0)
	495	return r;
	496
	497	length = strv_length(b);
	498	if (length < min_fields \|\| length > max_fields) {
	499	log_error("Invalid line %s:%u, ignoring.", filename, *n);
	500	strv_free(b);
	501	continue;
	502
	503	}
	504
	505	*a = b;
	506	return 1;
	507	}
	508	}
	509
	510	int vconsole_convert_to_x11(Context *c) {
cabffaf8	511	const char *map;
6f3287b3	512	int modified = -1;
4897d1dc	513
cabffaf8 ZJS	514	map = systemd_kbd_model_map();
cabffaf8 ZJS	515
4897d1dc	516	if (isempty(c->vc_keymap)) {
4897d1dc ZJS	517	modified =
	518	!isempty(c->x11_layout) \|\|
	519	!isempty(c->x11_model) \|\|
	520	!isempty(c->x11_variant) \|\|
	521	!isempty(c->x11_options);
	522
	523	context_free_x11(c);
	524	} else {
	525	_cleanup_fclose_ FILE *f = NULL;
	526	unsigned n = 0;
	527
cabffaf8	528	f = fopen(map, "re");
4897d1dc ZJS	529	if (!f)
	530	return -errno;
	531
	532	for (;;) {
	533	_cleanup_strv_free_ char **a = NULL;
	534	int r;
	535
cabffaf8	536	r = read_next_mapping(map, 5, UINT_MAX, f, &n, &a);
4897d1dc ZJS	537	if (r < 0)
	538	return r;
	539	if (r == 0)
	540	break;
	541
	542	if (!streq(c->vc_keymap, a[0]))
	543	continue;
	544
	545	if (!streq_ptr(c->x11_layout, strnulldash(a[1])) \|\|
	546	!streq_ptr(c->x11_model, strnulldash(a[2])) \|\|
	547	!streq_ptr(c->x11_variant, strnulldash(a[3])) \|\|
	548	!streq_ptr(c->x11_options, strnulldash(a[4]))) {
	549
	550	if (free_and_strdup(&c->x11_layout, strnulldash(a[1])) < 0 \|\|
	551	free_and_strdup(&c->x11_model, strnulldash(a[2])) < 0 \|\|
	552	free_and_strdup(&c->x11_variant, strnulldash(a[3])) < 0 \|\|
	553	free_and_strdup(&c->x11_options, strnulldash(a[4])) < 0)
	554	return -ENOMEM;
	555
	556	modified = true;
	557	}
	558
	559	break;
	560	}
	561	}
	562
6f3287b3	563	if (modified > 0)
4897d1dc ZJS	564	log_info("Changing X11 keyboard layout to '%s' model '%s' variant '%s' options '%s'",
	565	strempty(c->x11_layout),
	566	strempty(c->x11_model),
	567	strempty(c->x11_variant),
	568	strempty(c->x11_options));
6f3287b3 ZJS	569	else if (modified < 0)
	570	log_notice("X11 keyboard layout was not modified: no conversion found for \"%s\".",
	571	c->vc_keymap);
4897d1dc	572	else
6f3287b3	573	log_debug("X11 keyboard layout did not need to be modified.");
4897d1dc	574
6f3287b3	575	return modified > 0;
4897d1dc ZJS	576	}
	577
	578	int find_converted_keymap(const char x11_layout, const char x11_variant, char **new_keymap) {
	579	const char *dir;
	580	_cleanup_free_ char *n;
	581
	582	if (x11_variant)
605405c6	583	n = strjoin(x11_layout, "-", x11_variant);
4897d1dc ZJS	584	else
	585	n = strdup(x11_layout);
	586	if (!n)
	587	return -ENOMEM;
	588
	589	NULSTR_FOREACH(dir, KBD_KEYMAP_DIRS) {
	590	_cleanup_free_ char p = NULL, pz = NULL;
	591	bool uncompressed;
	592
605405c6 ZJS	593	p = strjoin(dir, "xkb/", n, ".map");
605405c6 ZJS	594	pz = strjoin(dir, "xkb/", n, ".map.gz");
4897d1dc ZJS	595	if (!p \|\| !pz)
	596	return -ENOMEM;
	597
	598	uncompressed = access(p, F_OK) == 0;
	599	if (uncompressed \|\| access(pz, F_OK) == 0) {
	600	log_debug("Found converted keymap %s at %s",
	601	n, uncompressed ? p : pz);
	602
ae2a15bc	603	*new_keymap = TAKE_PTR(n);
4897d1dc ZJS	604	return 1;
	605	}
	606	}
	607
	608	return 0;
	609	}
	610
6a6e9c03	611	int find_legacy_keymap(Context c, char *ret) {
cabffaf8 ZJS	612	const char *map;
cabffaf8 ZJS	613	_cleanup_fclose_ FILE *f = NULL;
6a6e9c03	614	_cleanup_free_ char *new_keymap = NULL;
4897d1dc ZJS	615	unsigned n = 0;
	616	unsigned best_matching = 0;
	617	int r;
	618
5ad327dd ZJS	619	assert(!isempty(c->x11_layout));
5ad327dd ZJS	620
cabffaf8 ZJS	621	map = systemd_kbd_model_map();
	622
	623	f = fopen(map, "re");
4897d1dc ZJS	624	if (!f)
	625	return -errno;
	626
	627	for (;;) {
	628	_cleanup_strv_free_ char **a = NULL;
	629	unsigned matching = 0;
	630
cabffaf8	631	r = read_next_mapping(map, 5, UINT_MAX, f, &n, &a);
4897d1dc ZJS	632	if (r < 0)
	633	return r;
	634	if (r == 0)
	635	break;
	636
	637	/* Determine how well matching this entry is */
5ad327dd	638	if (streq(c->x11_layout, a[1]))
4897d1dc ZJS	639	/* If we got an exact match, this is best */
	640	matching = 10;
	641	else {
	642	/* We have multiple X layouts, look for an
	643	* entry that matches our key with everything
	644	* but the first layout stripped off. */
	645	if (startswith_comma(c->x11_layout, a[1]))
	646	matching = 5;
	647	else {
	648	char *x;
	649
	650	/* If that didn't work, strip off the
	651	* other layouts from the entry, too */
	652	x = strndupa(a[1], strcspn(a[1], ","));
	653	if (startswith_comma(c->x11_layout, x))
	654	matching = 1;
	655	}
	656	}
	657
	658	if (matching > 0) {
	659	if (isempty(c->x11_model) \|\| streq_ptr(c->x11_model, a[2])) {
	660	matching++;
	661
	662	if (streq_ptr(c->x11_variant, a[3])) {
	663	matching++;
	664
	665	if (streq_ptr(c->x11_options, a[4]))
	666	matching++;
	667	}
	668	}
	669	}
	670
	671	/* The best matching entry so far, then let's save that */
	672	if (matching >= MAX(best_matching, 1u)) {
	673	log_debug("Found legacy keymap %s with score %u",
	674	a[0], matching);
	675
	676	if (matching > best_matching) {
	677	best_matching = matching;
	678
6a6e9c03	679	r = free_and_strdup(&new_keymap, a[0]);
4897d1dc ZJS	680	if (r < 0)
	681	return r;
	682	}
	683	}
	684	}
	685
	686	if (best_matching < 10 && c->x11_layout) {
	687	/* The best match is only the first part of the X11
	688	* keymap. Check if we have a converted map which
	689	* matches just the first layout.
	690	*/
	691	char l, v = NULL, *converted;
	692
	693	l = strndupa(c->x11_layout, strcspn(c->x11_layout, ","));
	694	if (c->x11_variant)
	695	v = strndupa(c->x11_variant, strcspn(c->x11_variant, ","));
	696	r = find_converted_keymap(l, v, &converted);
	697	if (r < 0)
	698	return r;
6a6e9c03 ZJS	699	if (r > 0)
6a6e9c03 ZJS	700	free_and_replace(new_keymap, converted);
4897d1dc ZJS	701	}
4897d1dc ZJS	702
6a6e9c03 ZJS	703	*ret = TAKE_PTR(new_keymap);
6a6e9c03 ZJS	704	return (bool) *ret;
4897d1dc ZJS	705	}
	706
	707	int find_language_fallback(const char lang, char *language) {
cabffaf8	708	const char *map;
4897d1dc ZJS	709	_cleanup_fclose_ FILE *f = NULL;
	710	unsigned n = 0;
	711
aa63b56f	712	assert(lang);
4897d1dc ZJS	713	assert(language);
4897d1dc ZJS	714
cabffaf8 ZJS	715	map = systemd_language_fallback_map();
	716
	717	f = fopen(map, "re");
4897d1dc ZJS	718	if (!f)
	719	return -errno;
	720
	721	for (;;) {
	722	_cleanup_strv_free_ char **a = NULL;
	723	int r;
	724
cabffaf8	725	r = read_next_mapping(map, 2, 2, f, &n, &a);
4897d1dc ZJS	726	if (r <= 0)
	727	return r;
	728
	729	if (streq(lang, a[0])) {
	730	assert(strv_length(a) == 2);
1cc6c93a	731	*language = TAKE_PTR(a[1]);
4897d1dc ZJS	732	return 1;
	733	}
	734	}
	735
	736	assert_not_reached("should not be here");
	737	}
	738
	739	int x11_convert_to_vconsole(Context *c) {
	740	bool modified = false;
	741
	742	if (isempty(c->x11_layout)) {
4897d1dc ZJS	743	modified =
	744	!isempty(c->vc_keymap) \|\|
	745	!isempty(c->vc_keymap_toggle);
	746
aa63b56f	747	context_free_vconsole(c);
4897d1dc	748	} else {
6a837b03	749	_cleanup_free_ char *new_keymap = NULL;
4897d1dc ZJS	750	int r;
	751
	752	r = find_converted_keymap(c->x11_layout, c->x11_variant, &new_keymap);
	753	if (r < 0)
	754	return r;
	755	else if (r == 0) {
	756	r = find_legacy_keymap(c, &new_keymap);
	757	if (r < 0)
	758	return r;
	759	}
5ad327dd ZJS	760	if (r == 0)
	761	/* We search for layout-variant match first, but then we also look
	762	* for anything which matches just the layout. So it's accurate to say
	763	* that we couldn't find anything which matches the layout. */
	764	log_notice("No conversion to virtual console map found for \"%s\".",
	765	c->x11_layout);
4897d1dc ZJS	766
4897d1dc ZJS	767	if (!streq_ptr(c->vc_keymap, new_keymap)) {
6a837b03	768	free_and_replace(c->vc_keymap, new_keymap);
4897d1dc ZJS	769	c->vc_keymap_toggle = mfree(c->vc_keymap_toggle);
4897d1dc ZJS	770	modified = true;
6a837b03	771	}
4897d1dc ZJS	772	}
	773
	774	if (modified)
	775	log_info("Changing virtual console keymap to '%s' toggle '%s'",
	776	strempty(c->vc_keymap), strempty(c->vc_keymap_toggle));
	777	else
	778	log_debug("Virtual console keymap was not modified.");
	779
	780	return modified;
	781	}