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

/* SPDX-License-Identifier: LGPL-2.1+ */
/***
  Copyright © 2013 Kay Sievers
***/

#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);
};

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 && m == c->locale_cache)
                return 0;

        /* To suppress multiple call of stat(), store the message to cache here. */
        c->locale_cache = 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 && m == c->vc_cache)
                return 0;

        /* To suppress multiple call of stat(), store the message to cache here. */
        c->vc_cache = 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 && m == c->x11_cache)
                return 0;

        /* To suppress multiple call of stat(), store the message to cache here. */
        c->x11_cache = 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	2	/***
96b2fb93	3	Copyright © 2013 Kay Sievers
4897d1dc ZJS	4	***/
	5
	6	#include <errno.h>
0d536673	7	#include <stdio_ext.h>
4897d1dc ZJS	8	#include <string.h>
	9	#include <unistd.h>
	10
	11	#include "def.h"
	12	#include "env-util.h"
	13	#include "fd-util.h"
	14	#include "fileio-label.h"
	15	#include "fileio.h"
	16	#include "keymap-util.h"
	17	#include "locale-util.h"
	18	#include "macro.h"
	19	#include "mkdir.h"
	20	#include "string-util.h"
	21	#include "strv.h"
	22
	23	static bool startswith_comma(const char s, const char prefix) {
5ad327dd ZJS	24	s = startswith(s, prefix);
	25	if (!s)
	26	return false;
4897d1dc	27
4c701096	28	return IN_SET(*s, ',', '\0');
4897d1dc ZJS	29	}
	30
	31	static const char* strnulldash(const char *s) {
	32	return isempty(s) \|\| streq(s, "-") ? NULL : s;
	33	}
	34
cabffaf8 ZJS	35	static const char* systemd_kbd_model_map(void) {
	36	const char* s;
	37
	38	s = getenv("SYSTEMD_KBD_MODEL_MAP");
	39	if (s)
	40	return s;
	41
	42	return SYSTEMD_KBD_MODEL_MAP;
	43	}
	44
	45	static const char* systemd_language_fallback_map(void) {
	46	const char* s;
	47
	48	s = getenv("SYSTEMD_LANGUAGE_FALLBACK_MAP");
	49	if (s)
	50	return s;
	51
	52	return SYSTEMD_LANGUAGE_FALLBACK_MAP;
	53	}
	54
4897d1dc ZJS	55	static void context_free_x11(Context *c) {
	56	c->x11_layout = mfree(c->x11_layout);
	57	c->x11_options = mfree(c->x11_options);
	58	c->x11_model = mfree(c->x11_model);
	59	c->x11_variant = mfree(c->x11_variant);
	60	}
	61
	62	static void context_free_vconsole(Context *c) {
	63	c->vc_keymap = mfree(c->vc_keymap);
	64	c->vc_keymap_toggle = mfree(c->vc_keymap_toggle);
	65	}
	66
	67	static void context_free_locale(Context *c) {
	68	int p;
	69
	70	for (p = 0; p < _VARIABLE_LC_MAX; p++)
	71	c->locale[p] = mfree(c->locale[p]);
	72	}
	73
	74	void context_free(Context *c) {
	75	context_free_locale(c);
	76	context_free_x11(c);
	77	context_free_vconsole(c);
	78	};
	79
df4fd2c7	80	void locale_simplify(char *locale[_VARIABLE_LC_MAX]) {
4897d1dc ZJS	81	int p;
	82
	83	for (p = VARIABLE_LANG+1; p < _VARIABLE_LC_MAX; p++)
df4fd2c7 YW	84	if (isempty(locale[p]) \|\| streq_ptr(locale[VARIABLE_LANG], locale[p]))
df4fd2c7 YW	85	locale[p] = mfree(locale[p]);
4897d1dc ZJS	86	}
4897d1dc ZJS	87
df4fd2c7 YW	88	int locale_read_data(Context c, sd_bus_message m) {
df4fd2c7 YW	89	struct stat st;
4897d1dc ZJS	90	int r;
4897d1dc ZJS	91
df4fd2c7 YW	92	/* Do not try to re-read the file within single bus operation. */
	93	if (m && m == c->locale_cache)
	94	return 0;
4897d1dc	95
df4fd2c7 YW	96	/* To suppress multiple call of stat(), store the message to cache here. */
	97	c->locale_cache = m;
	98
	99	r = stat("/etc/locale.conf", &st);
	100	if (r < 0 && errno != ENOENT)
	101	return -errno;
	102
	103	if (r >= 0) {
	104	usec_t t;
	105
	106	/* If mtime is not changed, then we do not need to re-read the file. */
	107	t = timespec_load(&st.st_mtim);
	108	if (c->locale_mtime != USEC_INFINITY && t == c->locale_mtime)
	109	return 0;
4897d1dc	110
df4fd2c7 YW	111	c->locale_mtime = t;
	112	context_free_locale(c);
	113
	114	r = parse_env_file(NULL, "/etc/locale.conf", NEWLINE,
	115	"LANG", &c->locale[VARIABLE_LANG],
	116	"LANGUAGE", &c->locale[VARIABLE_LANGUAGE],
	117	"LC_CTYPE", &c->locale[VARIABLE_LC_CTYPE],
	118	"LC_NUMERIC", &c->locale[VARIABLE_LC_NUMERIC],
	119	"LC_TIME", &c->locale[VARIABLE_LC_TIME],
	120	"LC_COLLATE", &c->locale[VARIABLE_LC_COLLATE],
	121	"LC_MONETARY", &c->locale[VARIABLE_LC_MONETARY],
	122	"LC_MESSAGES", &c->locale[VARIABLE_LC_MESSAGES],
	123	"LC_PAPER", &c->locale[VARIABLE_LC_PAPER],
	124	"LC_NAME", &c->locale[VARIABLE_LC_NAME],
	125	"LC_ADDRESS", &c->locale[VARIABLE_LC_ADDRESS],
	126	"LC_TELEPHONE", &c->locale[VARIABLE_LC_TELEPHONE],
	127	"LC_MEASUREMENT", &c->locale[VARIABLE_LC_MEASUREMENT],
	128	"LC_IDENTIFICATION", &c->locale[VARIABLE_LC_IDENTIFICATION],
	129	NULL);
	130	if (r < 0)
	131	return r;
	132	} else {
4897d1dc ZJS	133	int p;
4897d1dc ZJS	134
df4fd2c7 YW	135	c->locale_mtime = USEC_INFINITY;
	136	context_free_locale(c);
	137
4897d1dc ZJS	138	/* Fill in what we got passed from systemd. */
	139	for (p = 0; p < _VARIABLE_LC_MAX; p++) {
	140	const char *name;
	141
	142	name = locale_variable_to_string(p);
	143	assert(name);
	144
	145	r = free_and_strdup(&c->locale[p], empty_to_null(getenv(name)));
	146	if (r < 0)
	147	return r;
	148	}
4897d1dc ZJS	149	}
4897d1dc ZJS	150
df4fd2c7 YW	151	locale_simplify(c->locale);
df4fd2c7 YW	152	return 0;
4897d1dc ZJS	153	}
4897d1dc ZJS	154
df4fd2c7 YW	155	int vconsole_read_data(Context c, sd_bus_message m) {
	156	struct stat st;
	157	usec_t t;
4897d1dc ZJS	158	int r;
4897d1dc ZJS	159
df4fd2c7 YW	160	/* Do not try to re-read the file within single bus operation. */
	161	if (m && m == c->vc_cache)
	162	return 0;
	163
	164	/* To suppress multiple call of stat(), store the message to cache here. */
	165	c->vc_cache = m;
	166
	167	if (stat("/etc/vconsole.conf", &st) < 0) {
	168	if (errno != ENOENT)
	169	return -errno;
	170
	171	c->vc_mtime = USEC_INFINITY;
	172	context_free_vconsole(c);
	173	return 0;
	174	}
	175
	176	/* If mtime is not changed, then we do not need to re-read */
	177	t = timespec_load(&st.st_mtim);
	178	if (c->vc_mtime != USEC_INFINITY && t == c->vc_mtime)
	179	return 0;
	180
	181	c->vc_mtime = t;
4897d1dc ZJS	182	context_free_vconsole(c);
4897d1dc ZJS	183
1a5a177e	184	r = parse_env_file(NULL, "/etc/vconsole.conf", NEWLINE,
4897d1dc ZJS	185	"KEYMAP", &c->vc_keymap,
	186	"KEYMAP_TOGGLE", &c->vc_keymap_toggle,
	187	NULL);
df4fd2c7	188	if (r < 0)
4897d1dc ZJS	189	return r;
	190
	191	return 0;
	192	}
	193
df4fd2c7 YW	194	int x11_read_data(Context c, sd_bus_message m) {
df4fd2c7 YW	195	_cleanup_fclose_ FILE *f = NULL;
4897d1dc	196	bool in_section = false;
df4fd2c7 YW	197	char line[LINE_MAX];
	198	struct stat st;
	199	usec_t t;
4897d1dc ZJS	200	int r;
4897d1dc ZJS	201
df4fd2c7 YW	202	/* Do not try to re-read the file within single bus operation. */
	203	if (m && m == c->x11_cache)
	204	return 0;
	205
	206	/* To suppress multiple call of stat(), store the message to cache here. */
	207	c->x11_cache = m;
	208
	209	if (stat("/etc/X11/xorg.conf.d/00-keyboard.conf", &st) < 0) {
	210	if (errno != ENOENT)
	211	return -errno;
	212
	213	c->x11_mtime = USEC_INFINITY;
	214	context_free_x11(c);
	215	return 0;
	216	}
	217
	218	/* If mtime is not changed, then we do not need to re-read */
	219	t = timespec_load(&st.st_mtim);
	220	if (c->x11_mtime != USEC_INFINITY && t == c->x11_mtime)
	221	return 0;
	222
	223	c->x11_mtime = t;
4897d1dc ZJS	224	context_free_x11(c);
	225
	226	f = fopen("/etc/X11/xorg.conf.d/00-keyboard.conf", "re");
	227	if (!f)
df4fd2c7	228	return -errno;
4897d1dc ZJS	229
	230	while (fgets(line, sizeof(line), f)) {
	231	char *l;
	232
	233	char_array_0(line);
	234	l = strstrip(line);
	235
4c701096	236	if (IN_SET(l[0], 0, '#'))
4897d1dc ZJS	237	continue;
	238
	239	if (in_section && first_word(l, "Option")) {
	240	_cleanup_strv_free_ char **a = NULL;
	241
	242	r = strv_split_extract(&a, l, WHITESPACE, EXTRACT_QUOTES);
	243	if (r < 0)
	244	return r;
	245
	246	if (strv_length(a) == 3) {
	247	char **p = NULL;
	248
	249	if (streq(a[1], "XkbLayout"))
	250	p = &c->x11_layout;
	251	else if (streq(a[1], "XkbModel"))
	252	p = &c->x11_model;
	253	else if (streq(a[1], "XkbVariant"))
	254	p = &c->x11_variant;
	255	else if (streq(a[1], "XkbOptions"))
	256	p = &c->x11_options;
	257
	258	if (p) {
f9ecfd3b	259	free_and_replace(*p, a[2]);
4897d1dc ZJS	260	}
	261	}
	262
	263	} else if (!in_section && first_word(l, "Section")) {
	264	_cleanup_strv_free_ char **a = NULL;
	265
	266	r = strv_split_extract(&a, l, WHITESPACE, EXTRACT_QUOTES);
	267	if (r < 0)
	268	return -ENOMEM;
	269
	270	if (strv_length(a) == 2 && streq(a[1], "InputClass"))
	271	in_section = true;
	272
	273	} else if (in_section && first_word(l, "EndSection"))
	274	in_section = false;
	275	}
	276
	277	return 0;
	278	}
	279
4897d1dc	280	int locale_write_data(Context c, char **settings) {
4897d1dc	281	_cleanup_strv_free_ char **l = NULL;
df4fd2c7 YW	282	struct stat st;
df4fd2c7 YW	283	int r, p;
4897d1dc ZJS	284
	285	/* Set values will be returned as strv in settings on success. /
	286
4897d1dc ZJS	287	for (p = 0; p < _VARIABLE_LC_MAX; p++) {
	288	_cleanup_free_ char *t = NULL;
	289	char **u;
	290	const char *name;
	291
	292	name = locale_variable_to_string(p);
	293	assert(name);
	294
df4fd2c7	295	if (isempty(c->locale[p]))
4897d1dc	296	continue;
4897d1dc ZJS	297
	298	if (asprintf(&t, "%s=%s", name, c->locale[p]) < 0)
	299	return -ENOMEM;
	300
	301	u = strv_env_set(l, t);
	302	if (!u)
	303	return -ENOMEM;
	304
130d3d22	305	strv_free_and_replace(l, u);
4897d1dc ZJS	306	}
	307
	308	if (strv_isempty(l)) {
	309	if (unlink("/etc/locale.conf") < 0)
	310	return errno == ENOENT ? 0 : -errno;
	311
df4fd2c7	312	c->locale_mtime = USEC_INFINITY;
4897d1dc ZJS	313	return 0;
	314	}
	315
	316	r = write_env_file_label("/etc/locale.conf", l);
	317	if (r < 0)
	318	return r;
	319
ae2a15bc	320	*settings = TAKE_PTR(l);
df4fd2c7 YW	321
	322	if (stat("/etc/locale.conf", &st) >= 0)
	323	c->locale_mtime = timespec_load(&st.st_mtim);
	324
4897d1dc ZJS	325	return 0;
	326	}
	327
	328	int vconsole_write_data(Context *c) {
4897d1dc	329	_cleanup_strv_free_ char **l = NULL;
df4fd2c7 YW	330	struct stat st;
df4fd2c7 YW	331	int r;
4897d1dc ZJS	332
	333	r = load_env_file(NULL, "/etc/vconsole.conf", NULL, &l);
	334	if (r < 0 && r != -ENOENT)
	335	return r;
	336
	337	if (isempty(c->vc_keymap))
	338	l = strv_env_unset(l, "KEYMAP");
	339	else {
	340	_cleanup_free_ char *s = NULL;
	341	char **u;
	342
	343	s = strappend("KEYMAP=", c->vc_keymap);
	344	if (!s)
	345	return -ENOMEM;
	346
	347	u = strv_env_set(l, s);
	348	if (!u)
	349	return -ENOMEM;
	350
130d3d22	351	strv_free_and_replace(l, u);
4897d1dc ZJS	352	}
	353
	354	if (isempty(c->vc_keymap_toggle))
	355	l = strv_env_unset(l, "KEYMAP_TOGGLE");
	356	else {
	357	_cleanup_free_ char *s = NULL;
	358	char **u;
	359
	360	s = strappend("KEYMAP_TOGGLE=", c->vc_keymap_toggle);
	361	if (!s)
	362	return -ENOMEM;
	363
	364	u = strv_env_set(l, s);
	365	if (!u)
	366	return -ENOMEM;
	367
130d3d22	368	strv_free_and_replace(l, u);
4897d1dc ZJS	369	}
	370
	371	if (strv_isempty(l)) {
	372	if (unlink("/etc/vconsole.conf") < 0)
	373	return errno == ENOENT ? 0 : -errno;
	374
df4fd2c7	375	c->vc_mtime = USEC_INFINITY;
4897d1dc ZJS	376	return 0;
	377	}
	378
df4fd2c7 YW	379	r = write_env_file_label("/etc/vconsole.conf", l);
	380	if (r < 0)
	381	return r;
	382
	383	if (stat("/etc/vconsole.conf", &st) >= 0)
	384	c->vc_mtime = timespec_load(&st.st_mtim);
	385
	386	return 0;
4897d1dc ZJS	387	}
	388
	389	int x11_write_data(Context *c) {
	390	_cleanup_fclose_ FILE *f = NULL;
	391	_cleanup_free_ char *temp_path = NULL;
df4fd2c7	392	struct stat st;
4897d1dc ZJS	393	int r;
	394
	395	if (isempty(c->x11_layout) &&
	396	isempty(c->x11_model) &&
	397	isempty(c->x11_variant) &&
	398	isempty(c->x11_options)) {
	399
	400	if (unlink("/etc/X11/xorg.conf.d/00-keyboard.conf") < 0)
	401	return errno == ENOENT ? 0 : -errno;
	402
df4fd2c7	403	c->vc_mtime = USEC_INFINITY;
4897d1dc ZJS	404	return 0;
	405	}
	406
	407	mkdir_p_label("/etc/X11/xorg.conf.d", 0755);
	408
	409	r = fopen_temporary("/etc/X11/xorg.conf.d/00-keyboard.conf", &f, &temp_path);
	410	if (r < 0)
	411	return r;
	412
0d536673 LP	413	(void) __fsetlocking(f, FSETLOCKING_BYCALLER);
0d536673 LP	414	(void) fchmod(fileno(f), 0644);
4897d1dc	415
0d536673 LP	416	fputs("# Written by systemd-localed(8), read by systemd-localed and Xorg. It's\n"
	417	"# probably wise not to edit this file manually. Use localectl(1) to\n"
	418	"# instruct systemd-localed to update it.\n"
	419	"Section \"InputClass\"\n"
	420	" Identifier \"system-keyboard\"\n"
	421	" MatchIsKeyboard \"on\"\n", f);
4897d1dc ZJS	422
	423	if (!isempty(c->x11_layout))
	424	fprintf(f, " Option \"XkbLayout\" \"%s\"\n", c->x11_layout);
	425
	426	if (!isempty(c->x11_model))
	427	fprintf(f, " Option \"XkbModel\" \"%s\"\n", c->x11_model);
	428
	429	if (!isempty(c->x11_variant))
	430	fprintf(f, " Option \"XkbVariant\" \"%s\"\n", c->x11_variant);
	431
	432	if (!isempty(c->x11_options))
	433	fprintf(f, " Option \"XkbOptions\" \"%s\"\n", c->x11_options);
	434
0d536673	435	fputs("EndSection\n", f);
4897d1dc	436
0675e94a	437	r = fflush_sync_and_check(f);
4897d1dc ZJS	438	if (r < 0)
	439	goto fail;
	440
	441	if (rename(temp_path, "/etc/X11/xorg.conf.d/00-keyboard.conf") < 0) {
	442	r = -errno;
	443	goto fail;
	444	}
	445
df4fd2c7 YW	446	if (stat("/etc/X11/xorg.conf.d/00-keyboard.conf", &st) >= 0)
	447	c->x11_mtime = timespec_load(&st.st_mtim);
	448
4897d1dc ZJS	449	return 0;
	450
	451	fail:
4897d1dc ZJS	452	if (temp_path)
	453	(void) unlink(temp_path);
	454
	455	return r;
	456	}
	457
	458	static int read_next_mapping(const char* filename,
	459	unsigned min_fields, unsigned max_fields,
	460	FILE f, unsigned n, char ***a) {
	461	assert(f);
	462	assert(n);
	463	assert(a);
	464
	465	for (;;) {
	466	char line[LINE_MAX];
	467	char l, *b;
	468	int r;
	469	size_t length;
	470
	471	errno = 0;
	472	if (!fgets(line, sizeof(line), f)) {
	473
	474	if (ferror(f))
	475	return errno > 0 ? -errno : -EIO;
	476
	477	return 0;
	478	}
	479
	480	(*n)++;
	481
	482	l = strstrip(line);
4c701096	483	if (IN_SET(l[0], 0, '#'))
4897d1dc ZJS	484	continue;
	485
	486	r = strv_split_extract(&b, l, WHITESPACE, EXTRACT_QUOTES);
	487	if (r < 0)
	488	return r;
	489
	490	length = strv_length(b);
	491	if (length < min_fields \|\| length > max_fields) {
	492	log_error("Invalid line %s:%u, ignoring.", filename, *n);
	493	strv_free(b);
	494	continue;
	495
	496	}
	497
	498	*a = b;
	499	return 1;
	500	}
	501	}
	502
	503	int vconsole_convert_to_x11(Context *c) {
cabffaf8	504	const char *map;
6f3287b3	505	int modified = -1;
4897d1dc	506
cabffaf8 ZJS	507	map = systemd_kbd_model_map();
cabffaf8 ZJS	508
4897d1dc	509	if (isempty(c->vc_keymap)) {
4897d1dc ZJS	510	modified =
	511	!isempty(c->x11_layout) \|\|
	512	!isempty(c->x11_model) \|\|
	513	!isempty(c->x11_variant) \|\|
	514	!isempty(c->x11_options);
	515
	516	context_free_x11(c);
	517	} else {
	518	_cleanup_fclose_ FILE *f = NULL;
	519	unsigned n = 0;
	520
cabffaf8	521	f = fopen(map, "re");
4897d1dc ZJS	522	if (!f)
	523	return -errno;
	524
	525	for (;;) {
	526	_cleanup_strv_free_ char **a = NULL;
	527	int r;
	528
cabffaf8	529	r = read_next_mapping(map, 5, UINT_MAX, f, &n, &a);
4897d1dc ZJS	530	if (r < 0)
	531	return r;
	532	if (r == 0)
	533	break;
	534
	535	if (!streq(c->vc_keymap, a[0]))
	536	continue;
	537
	538	if (!streq_ptr(c->x11_layout, strnulldash(a[1])) \|\|
	539	!streq_ptr(c->x11_model, strnulldash(a[2])) \|\|
	540	!streq_ptr(c->x11_variant, strnulldash(a[3])) \|\|
	541	!streq_ptr(c->x11_options, strnulldash(a[4]))) {
	542
	543	if (free_and_strdup(&c->x11_layout, strnulldash(a[1])) < 0 \|\|
	544	free_and_strdup(&c->x11_model, strnulldash(a[2])) < 0 \|\|
	545	free_and_strdup(&c->x11_variant, strnulldash(a[3])) < 0 \|\|
	546	free_and_strdup(&c->x11_options, strnulldash(a[4])) < 0)
	547	return -ENOMEM;
	548
	549	modified = true;
	550	}
	551
	552	break;
	553	}
	554	}
	555
6f3287b3	556	if (modified > 0)
4897d1dc ZJS	557	log_info("Changing X11 keyboard layout to '%s' model '%s' variant '%s' options '%s'",
	558	strempty(c->x11_layout),
	559	strempty(c->x11_model),
	560	strempty(c->x11_variant),
	561	strempty(c->x11_options));
6f3287b3 ZJS	562	else if (modified < 0)
	563	log_notice("X11 keyboard layout was not modified: no conversion found for \"%s\".",
	564	c->vc_keymap);
4897d1dc	565	else
6f3287b3	566	log_debug("X11 keyboard layout did not need to be modified.");
4897d1dc	567
6f3287b3	568	return modified > 0;
4897d1dc ZJS	569	}
	570
	571	int find_converted_keymap(const char x11_layout, const char x11_variant, char **new_keymap) {
	572	const char *dir;
	573	_cleanup_free_ char *n;
	574
	575	if (x11_variant)
605405c6	576	n = strjoin(x11_layout, "-", x11_variant);
4897d1dc ZJS	577	else
	578	n = strdup(x11_layout);
	579	if (!n)
	580	return -ENOMEM;
	581
	582	NULSTR_FOREACH(dir, KBD_KEYMAP_DIRS) {
	583	_cleanup_free_ char p = NULL, pz = NULL;
	584	bool uncompressed;
	585
605405c6 ZJS	586	p = strjoin(dir, "xkb/", n, ".map");
605405c6 ZJS	587	pz = strjoin(dir, "xkb/", n, ".map.gz");
4897d1dc ZJS	588	if (!p \|\| !pz)
	589	return -ENOMEM;
	590
	591	uncompressed = access(p, F_OK) == 0;
	592	if (uncompressed \|\| access(pz, F_OK) == 0) {
	593	log_debug("Found converted keymap %s at %s",
	594	n, uncompressed ? p : pz);
	595
ae2a15bc	596	*new_keymap = TAKE_PTR(n);
4897d1dc ZJS	597	return 1;
	598	}
	599	}
	600
	601	return 0;
	602	}
	603
6a6e9c03	604	int find_legacy_keymap(Context c, char *ret) {
cabffaf8 ZJS	605	const char *map;
cabffaf8 ZJS	606	_cleanup_fclose_ FILE *f = NULL;
6a6e9c03	607	_cleanup_free_ char *new_keymap = NULL;
4897d1dc ZJS	608	unsigned n = 0;
	609	unsigned best_matching = 0;
	610	int r;
	611
5ad327dd ZJS	612	assert(!isempty(c->x11_layout));
5ad327dd ZJS	613
cabffaf8 ZJS	614	map = systemd_kbd_model_map();
	615
	616	f = fopen(map, "re");
4897d1dc ZJS	617	if (!f)
	618	return -errno;
	619
	620	for (;;) {
	621	_cleanup_strv_free_ char **a = NULL;
	622	unsigned matching = 0;
	623
cabffaf8	624	r = read_next_mapping(map, 5, UINT_MAX, f, &n, &a);
4897d1dc ZJS	625	if (r < 0)
	626	return r;
	627	if (r == 0)
	628	break;
	629
	630	/* Determine how well matching this entry is */
5ad327dd	631	if (streq(c->x11_layout, a[1]))
4897d1dc ZJS	632	/* If we got an exact match, this is best */
	633	matching = 10;
	634	else {
	635	/* We have multiple X layouts, look for an
	636	* entry that matches our key with everything
	637	* but the first layout stripped off. */
	638	if (startswith_comma(c->x11_layout, a[1]))
	639	matching = 5;
	640	else {
	641	char *x;
	642
	643	/* If that didn't work, strip off the
	644	* other layouts from the entry, too */
	645	x = strndupa(a[1], strcspn(a[1], ","));
	646	if (startswith_comma(c->x11_layout, x))
	647	matching = 1;
	648	}
	649	}
	650
	651	if (matching > 0) {
	652	if (isempty(c->x11_model) \|\| streq_ptr(c->x11_model, a[2])) {
	653	matching++;
	654
	655	if (streq_ptr(c->x11_variant, a[3])) {
	656	matching++;
	657
	658	if (streq_ptr(c->x11_options, a[4]))
	659	matching++;
	660	}
	661	}
	662	}
	663
	664	/* The best matching entry so far, then let's save that */
	665	if (matching >= MAX(best_matching, 1u)) {
	666	log_debug("Found legacy keymap %s with score %u",
	667	a[0], matching);
	668
	669	if (matching > best_matching) {
	670	best_matching = matching;
	671
6a6e9c03	672	r = free_and_strdup(&new_keymap, a[0]);
4897d1dc ZJS	673	if (r < 0)
	674	return r;
	675	}
	676	}
	677	}
	678
	679	if (best_matching < 10 && c->x11_layout) {
	680	/* The best match is only the first part of the X11
	681	* keymap. Check if we have a converted map which
	682	* matches just the first layout.
	683	*/
	684	char l, v = NULL, *converted;
	685
	686	l = strndupa(c->x11_layout, strcspn(c->x11_layout, ","));
	687	if (c->x11_variant)
	688	v = strndupa(c->x11_variant, strcspn(c->x11_variant, ","));
	689	r = find_converted_keymap(l, v, &converted);
	690	if (r < 0)
	691	return r;
6a6e9c03 ZJS	692	if (r > 0)
6a6e9c03 ZJS	693	free_and_replace(new_keymap, converted);
4897d1dc ZJS	694	}
4897d1dc ZJS	695
6a6e9c03 ZJS	696	*ret = TAKE_PTR(new_keymap);
6a6e9c03 ZJS	697	return (bool) *ret;
4897d1dc ZJS	698	}
	699
	700	int find_language_fallback(const char lang, char *language) {
cabffaf8	701	const char *map;
4897d1dc ZJS	702	_cleanup_fclose_ FILE *f = NULL;
	703	unsigned n = 0;
	704
aa63b56f	705	assert(lang);
4897d1dc ZJS	706	assert(language);
4897d1dc ZJS	707
cabffaf8 ZJS	708	map = systemd_language_fallback_map();
	709
	710	f = fopen(map, "re");
4897d1dc ZJS	711	if (!f)
	712	return -errno;
	713
	714	for (;;) {
	715	_cleanup_strv_free_ char **a = NULL;
	716	int r;
	717
cabffaf8	718	r = read_next_mapping(map, 2, 2, f, &n, &a);
4897d1dc ZJS	719	if (r <= 0)
	720	return r;
	721
	722	if (streq(lang, a[0])) {
	723	assert(strv_length(a) == 2);
1cc6c93a	724	*language = TAKE_PTR(a[1]);
4897d1dc ZJS	725	return 1;
	726	}
	727	}
	728
	729	assert_not_reached("should not be here");
	730	}
	731
	732	int x11_convert_to_vconsole(Context *c) {
	733	bool modified = false;
	734
	735	if (isempty(c->x11_layout)) {
4897d1dc ZJS	736	modified =
	737	!isempty(c->vc_keymap) \|\|
	738	!isempty(c->vc_keymap_toggle);
	739
aa63b56f	740	context_free_vconsole(c);
4897d1dc	741	} else {
6a837b03	742	_cleanup_free_ char *new_keymap = NULL;
4897d1dc ZJS	743	int r;
	744
	745	r = find_converted_keymap(c->x11_layout, c->x11_variant, &new_keymap);
	746	if (r < 0)
	747	return r;
	748	else if (r == 0) {
	749	r = find_legacy_keymap(c, &new_keymap);
	750	if (r < 0)
	751	return r;
	752	}
5ad327dd ZJS	753	if (r == 0)
	754	/* We search for layout-variant match first, but then we also look
	755	* for anything which matches just the layout. So it's accurate to say
	756	* that we couldn't find anything which matches the layout. */
	757	log_notice("No conversion to virtual console map found for \"%s\".",
	758	c->x11_layout);
4897d1dc ZJS	759
4897d1dc ZJS	760	if (!streq_ptr(c->vc_keymap, new_keymap)) {
6a837b03	761	free_and_replace(c->vc_keymap, new_keymap);
4897d1dc ZJS	762	c->vc_keymap_toggle = mfree(c->vc_keymap_toggle);
4897d1dc ZJS	763	modified = true;
6a837b03	764	}
4897d1dc ZJS	765	}
	766
	767	if (modified)
	768	log_info("Changing virtual console keymap to '%s' toggle '%s'",
	769	strempty(c->vc_keymap), strempty(c->vc_keymap_toggle));
	770	else
	771	log_debug("Virtual console keymap was not modified.");
	772
	773	return modified;
	774	}