src/locale/keymap-util.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <errno.h>
   4 #include <stdio_ext.h>
   5 #include <string.h>
   6 #include <sys/stat.h>
   7 #include <sys/types.h>
   8 #include <unistd.h>
   9
  10 #include "bus-util.h"
  11 #include "env-file-label.h"
  12 #include "env-file.h"
  13 #include "env-util.h"
  14 #include "fd-util.h"
  15 #include "fileio-label.h"
  16 #include "fileio.h"
  17 #include "kbd-util.h"
  18 #include "keymap-util.h"
  19 #include "locale-util.h"
  20 #include "macro.h"
  21 #include "mkdir.h"
  22 #include "nulstr-util.h"
  23 #include "string-util.h"
  24 #include "strv.h"
  25 #include "tmpfile-util.h"
  26
  27 static bool startswith_comma(const char *s, const char *prefix) {
  28         s = startswith(s, prefix);
  29         if (!s)
  30                 return false;
  31
  32         return IN_SET(*s, ',', '\0');
  33 }
  34
  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
  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_clear(Context *c) {
  75         context_free_locale(c);
  76         context_free_x11(c);
  77         context_free_vconsole(c);
  78
  79         sd_bus_message_unref(c->locale_cache);
  80         sd_bus_message_unref(c->x11_cache);
  81         sd_bus_message_unref(c->vc_cache);
  82
  83         bus_verify_polkit_async_registry_free(c->polkit_registry);
  84 };
  85
  86 void locale_simplify(char *locale[_VARIABLE_LC_MAX]) {
  87         int p;
  88
  89         for (p = VARIABLE_LANG+1; p < _VARIABLE_LC_MAX; p++)
  90                 if (isempty(locale[p]) || streq_ptr(locale[VARIABLE_LANG], locale[p]))
  91                         locale[p] = mfree(locale[p]);
  92 }
  93
  94 int locale_read_data(Context *c, sd_bus_message *m) {
  95         struct stat st;
  96         int r;
  97
  98         /* Do not try to re-read the file within single bus operation. */
  99         if (m) {
 100                 if (m == c->locale_cache)
 101                         return 0;
 102
 103                 sd_bus_message_unref(c->locale_cache);
 104                 c->locale_cache = sd_bus_message_ref(m);
 105         }
 106
 107         r = stat("/etc/locale.conf", &st);
 108         if (r < 0 && errno != ENOENT)
 109                 return -errno;
 110
 111         if (r >= 0) {
 112                 usec_t t;
 113
 114                 /* If mtime is not changed, then we do not need to re-read the file. */
 115                 t = timespec_load(&st.st_mtim);
 116                 if (c->locale_mtime != USEC_INFINITY && t == c->locale_mtime)
 117                         return 0;
 118
 119                 c->locale_mtime = t;
 120                 context_free_locale(c);
 121
 122                 r = parse_env_file(NULL, "/etc/locale.conf",
 123                                    "LANG",              &c->locale[VARIABLE_LANG],
 124                                    "LANGUAGE",          &c->locale[VARIABLE_LANGUAGE],
 125                                    "LC_CTYPE",          &c->locale[VARIABLE_LC_CTYPE],
 126                                    "LC_NUMERIC",        &c->locale[VARIABLE_LC_NUMERIC],
 127                                    "LC_TIME",           &c->locale[VARIABLE_LC_TIME],
 128                                    "LC_COLLATE",        &c->locale[VARIABLE_LC_COLLATE],
 129                                    "LC_MONETARY",       &c->locale[VARIABLE_LC_MONETARY],
 130                                    "LC_MESSAGES",       &c->locale[VARIABLE_LC_MESSAGES],
 131                                    "LC_PAPER",          &c->locale[VARIABLE_LC_PAPER],
 132                                    "LC_NAME",           &c->locale[VARIABLE_LC_NAME],
 133                                    "LC_ADDRESS",        &c->locale[VARIABLE_LC_ADDRESS],
 134                                    "LC_TELEPHONE",      &c->locale[VARIABLE_LC_TELEPHONE],
 135                                    "LC_MEASUREMENT",    &c->locale[VARIABLE_LC_MEASUREMENT],
 136                                    "LC_IDENTIFICATION", &c->locale[VARIABLE_LC_IDENTIFICATION]);
 137                 if (r < 0)
 138                         return r;
 139         } else {
 140                 int p;
 141
 142                 c->locale_mtime = USEC_INFINITY;
 143                 context_free_locale(c);
 144
 145                 /* Fill in what we got passed from systemd. */
 146                 for (p = 0; p < _VARIABLE_LC_MAX; p++) {
 147                         const char *name;
 148
 149                         name = locale_variable_to_string(p);
 150                         assert(name);
 151
 152                         r = free_and_strdup(&c->locale[p], empty_to_null(getenv(name)));
 153                         if (r < 0)
 154                                 return r;
 155                 }
 156         }
 157
 158         locale_simplify(c->locale);
 159         return 0;
 160 }
 161
 162 int vconsole_read_data(Context *c, sd_bus_message *m) {
 163         struct stat st;
 164         usec_t t;
 165         int r;
 166
 167         /* Do not try to re-read the file within single bus operation. */
 168         if (m) {
 169                 if (m == c->vc_cache)
 170                         return 0;
 171
 172                 sd_bus_message_unref(c->vc_cache);
 173                 c->vc_cache = sd_bus_message_ref(m);
 174         }
 175
 176         if (stat("/etc/vconsole.conf", &st) < 0) {
 177                 if (errno != ENOENT)
 178                         return -errno;
 179
 180                 c->vc_mtime = USEC_INFINITY;
 181                 context_free_vconsole(c);
 182                 return 0;
 183         }
 184
 185         /* If mtime is not changed, then we do not need to re-read */
 186         t = timespec_load(&st.st_mtim);
 187         if (c->vc_mtime != USEC_INFINITY && t == c->vc_mtime)
 188                 return 0;
 189
 190         c->vc_mtime = t;
 191         context_free_vconsole(c);
 192
 193         r = parse_env_file(NULL, "/etc/vconsole.conf",
 194                            "KEYMAP",        &c->vc_keymap,
 195                            "KEYMAP_TOGGLE", &c->vc_keymap_toggle);
 196         if (r < 0)
 197                 return r;
 198
 199         return 0;
 200 }
 201
 202 int x11_read_data(Context *c, sd_bus_message *m) {
 203         _cleanup_fclose_ FILE *f = NULL;
 204         bool in_section = false;
 205         struct stat st;
 206         usec_t t;
 207         int r;
 208
 209         /* Do not try to re-read the file within single bus operation. */
 210         if (m) {
 211                 if (m == c->x11_cache)
 212                         return 0;
 213
 214                 sd_bus_message_unref(c->x11_cache);
 215                 c->x11_cache = sd_bus_message_ref(m);
 216         }
 217
 218         if (stat("/etc/X11/xorg.conf.d/00-keyboard.conf", &st) < 0) {
 219                 if (errno != ENOENT)
 220                         return -errno;
 221
 222                 c->x11_mtime = USEC_INFINITY;
 223                 context_free_x11(c);
 224                 return 0;
 225         }
 226
 227         /* If mtime is not changed, then we do not need to re-read */
 228         t = timespec_load(&st.st_mtim);
 229         if (c->x11_mtime != USEC_INFINITY && t == c->x11_mtime)
 230                 return 0;
 231
 232         c->x11_mtime = t;
 233         context_free_x11(c);
 234
 235         f = fopen("/etc/X11/xorg.conf.d/00-keyboard.conf", "re");
 236         if (!f)
 237                 return -errno;
 238
 239         for (;;) {
 240                 _cleanup_free_ char *line = NULL;
 241                 char *l;
 242
 243                 r = read_line(f, LONG_LINE_MAX, &line);
 244                 if (r < 0)
 245                         return r;
 246                 if (r == 0)
 247                         break;
 248
 249                 l = strstrip(line);
 250                 if (IN_SET(l[0], 0, '#'))
 251                         continue;
 252
 253                 if (in_section && first_word(l, "Option")) {
 254                         _cleanup_strv_free_ char **a = NULL;
 255
 256                         r = strv_split_extract(&a, l, WHITESPACE, EXTRACT_QUOTES);
 257                         if (r < 0)
 258                                 return r;
 259
 260                         if (strv_length(a) == 3) {
 261                                 char **p = NULL;
 262
 263                                 if (streq(a[1], "XkbLayout"))
 264                                         p = &c->x11_layout;
 265                                 else if (streq(a[1], "XkbModel"))
 266                                         p = &c->x11_model;
 267                                 else if (streq(a[1], "XkbVariant"))
 268                                         p = &c->x11_variant;
 269                                 else if (streq(a[1], "XkbOptions"))
 270                                         p = &c->x11_options;
 271
 272                                 if (p) {
 273                                         free_and_replace(*p, a[2]);
 274                                 }
 275                         }
 276
 277                 } else if (!in_section && first_word(l, "Section")) {
 278                         _cleanup_strv_free_ char **a = NULL;
 279
 280                         r = strv_split_extract(&a, l, WHITESPACE, EXTRACT_QUOTES);
 281                         if (r < 0)
 282                                 return -ENOMEM;
 283
 284                         if (strv_length(a) == 2 && streq(a[1], "InputClass"))
 285                                 in_section = true;
 286
 287                 } else if (in_section && first_word(l, "EndSection"))
 288                         in_section = false;
 289         }
 290
 291         return 0;
 292 }
 293
 294 int locale_write_data(Context *c, char ***settings) {
 295         _cleanup_strv_free_ char **l = NULL;
 296         struct stat st;
 297         int r, p;
 298
 299         /* Set values will be returned as strv in *settings on success. */
 300
 301         for (p = 0; p < _VARIABLE_LC_MAX; p++) {
 302                 _cleanup_free_ char *t = NULL;
 303                 char **u;
 304                 const char *name;
 305
 306                 name = locale_variable_to_string(p);
 307                 assert(name);
 308
 309                 if (isempty(c->locale[p]))
 310                         continue;
 311
 312                 if (asprintf(&t, "%s=%s", name, c->locale[p]) < 0)
 313                         return -ENOMEM;
 314
 315                 u = strv_env_set(l, t);
 316                 if (!u)
 317                         return -ENOMEM;
 318
 319                 strv_free_and_replace(l, u);
 320         }
 321
 322         if (strv_isempty(l)) {
 323                 if (unlink("/etc/locale.conf") < 0)
 324                         return errno == ENOENT ? 0 : -errno;
 325
 326                 c->locale_mtime = USEC_INFINITY;
 327                 return 0;
 328         }
 329
 330         r = write_env_file_label("/etc/locale.conf", l);
 331         if (r < 0)
 332                 return r;
 333
 334         *settings = TAKE_PTR(l);
 335
 336         if (stat("/etc/locale.conf", &st) >= 0)
 337                 c->locale_mtime = timespec_load(&st.st_mtim);
 338
 339         return 0;
 340 }
 341
 342 int vconsole_write_data(Context *c) {
 343         _cleanup_strv_free_ char **l = NULL;
 344         struct stat st;
 345         int r;
 346
 347         r = load_env_file(NULL, "/etc/vconsole.conf", &l);
 348         if (r < 0 && r != -ENOENT)
 349                 return r;
 350
 351         if (isempty(c->vc_keymap))
 352                 l = strv_env_unset(l, "KEYMAP");
 353         else {
 354                 _cleanup_free_ char *s = NULL;
 355                 char **u;
 356
 357                 s = strappend("KEYMAP=", c->vc_keymap);
 358                 if (!s)
 359                         return -ENOMEM;
 360
 361                 u = strv_env_set(l, s);
 362                 if (!u)
 363                         return -ENOMEM;
 364
 365                 strv_free_and_replace(l, u);
 366         }
 367
 368         if (isempty(c->vc_keymap_toggle))
 369                 l = strv_env_unset(l, "KEYMAP_TOGGLE");
 370         else  {
 371                 _cleanup_free_ char *s = NULL;
 372                 char **u;
 373
 374                 s = strappend("KEYMAP_TOGGLE=", c->vc_keymap_toggle);
 375                 if (!s)
 376                         return -ENOMEM;
 377
 378                 u = strv_env_set(l, s);
 379                 if (!u)
 380                         return -ENOMEM;
 381
 382                 strv_free_and_replace(l, u);
 383         }
 384
 385         if (strv_isempty(l)) {
 386                 if (unlink("/etc/vconsole.conf") < 0)
 387                         return errno == ENOENT ? 0 : -errno;
 388
 389                 c->vc_mtime = USEC_INFINITY;
 390                 return 0;
 391         }
 392
 393         r = write_env_file_label("/etc/vconsole.conf", l);
 394         if (r < 0)
 395                 return r;
 396
 397         if (stat("/etc/vconsole.conf", &st) >= 0)
 398                 c->vc_mtime = timespec_load(&st.st_mtim);
 399
 400         return 0;
 401 }
 402
 403 int x11_write_data(Context *c) {
 404         _cleanup_fclose_ FILE *f = NULL;
 405         _cleanup_free_ char *temp_path = NULL;
 406         struct stat st;
 407         int r;
 408
 409         if (isempty(c->x11_layout) &&
 410             isempty(c->x11_model) &&
 411             isempty(c->x11_variant) &&
 412             isempty(c->x11_options)) {
 413
 414                 if (unlink("/etc/X11/xorg.conf.d/00-keyboard.conf") < 0)
 415                         return errno == ENOENT ? 0 : -errno;
 416
 417                 c->vc_mtime = USEC_INFINITY;
 418                 return 0;
 419         }
 420
 421         (void) mkdir_p_label("/etc/X11/xorg.conf.d", 0755);
 422         r = fopen_temporary("/etc/X11/xorg.conf.d/00-keyboard.conf", &f, &temp_path);
 423         if (r < 0)
 424                 return r;
 425
 426         (void) __fsetlocking(f, FSETLOCKING_BYCALLER);
 427         (void) fchmod(fileno(f), 0644);
 428
 429         fputs("# Written by systemd-localed(8), read by systemd-localed and Xorg. It's\n"
 430               "# probably wise not to edit this file manually. Use localectl(1) to\n"
 431               "# instruct systemd-localed to update it.\n"
 432               "Section \"InputClass\"\n"
 433               "        Identifier \"system-keyboard\"\n"
 434               "        MatchIsKeyboard \"on\"\n", f);
 435
 436         if (!isempty(c->x11_layout))
 437                 fprintf(f, "        Option \"XkbLayout\" \"%s\"\n", c->x11_layout);
 438
 439         if (!isempty(c->x11_model))
 440                 fprintf(f, "        Option \"XkbModel\" \"%s\"\n", c->x11_model);
 441
 442         if (!isempty(c->x11_variant))
 443                 fprintf(f, "        Option \"XkbVariant\" \"%s\"\n", c->x11_variant);
 444
 445         if (!isempty(c->x11_options))
 446                 fprintf(f, "        Option \"XkbOptions\" \"%s\"\n", c->x11_options);
 447
 448         fputs("EndSection\n", f);
 449
 450         r = fflush_sync_and_check(f);
 451         if (r < 0)
 452                 goto fail;
 453
 454         if (rename(temp_path, "/etc/X11/xorg.conf.d/00-keyboard.conf") < 0) {
 455                 r = -errno;
 456                 goto fail;
 457         }
 458
 459         if (stat("/etc/X11/xorg.conf.d/00-keyboard.conf", &st) >= 0)
 460                 c->x11_mtime = timespec_load(&st.st_mtim);
 461
 462         return 0;
 463
 464 fail:
 465         if (temp_path)
 466                 (void) unlink(temp_path);
 467
 468         return r;
 469 }
 470
 471 static int read_next_mapping(const char* filename,
 472                              unsigned min_fields, unsigned max_fields,
 473                              FILE *f, unsigned *n, char ***a) {
 474         assert(f);
 475         assert(n);
 476         assert(a);
 477
 478         for (;;) {
 479                 _cleanup_free_ char *line = NULL;
 480                 size_t length;
 481                 char *l, **b;
 482                 int r;
 483
 484                 r = read_line(f, LONG_LINE_MAX, &line);
 485                 if (r < 0)
 486                         return r;
 487                 if (r == 0)
 488                         break;
 489
 490                 (*n)++;
 491
 492                 l = strstrip(line);
 493                 if (IN_SET(l[0], 0, '#'))
 494                         continue;
 495
 496                 r = strv_split_extract(&b, l, WHITESPACE, EXTRACT_QUOTES);
 497                 if (r < 0)
 498                         return r;
 499
 500                 length = strv_length(b);
 501                 if (length < min_fields || length > max_fields) {
 502                         log_error("Invalid line %s:%u, ignoring.", filename, *n);
 503                         strv_free(b);
 504                         continue;
 505
 506                 }
 507
 508                 *a = b;
 509                 return 1;
 510         }
 511
 512         return 0;
 513 }
 514
 515 int vconsole_convert_to_x11(Context *c) {
 516         const char *map;
 517         int modified = -1;
 518
 519         map = systemd_kbd_model_map();
 520
 521         if (isempty(c->vc_keymap)) {
 522                 modified =
 523                         !isempty(c->x11_layout) ||
 524                         !isempty(c->x11_model) ||
 525                         !isempty(c->x11_variant) ||
 526                         !isempty(c->x11_options);
 527
 528                 context_free_x11(c);
 529         } else {
 530                 _cleanup_fclose_ FILE *f = NULL;
 531                 unsigned n = 0;
 532
 533                 f = fopen(map, "re");
 534                 if (!f)
 535                         return -errno;
 536
 537                 for (;;) {
 538                         _cleanup_strv_free_ char **a = NULL;
 539                         int r;
 540
 541                         r = read_next_mapping(map, 5, UINT_MAX, f, &n, &a);
 542                         if (r < 0)
 543                                 return r;
 544                         if (r == 0)
 545                                 break;
 546
 547                         if (!streq(c->vc_keymap, a[0]))
 548                                 continue;
 549
 550                         if (!streq_ptr(c->x11_layout, empty_or_dash_to_null(a[1])) ||
 551                             !streq_ptr(c->x11_model, empty_or_dash_to_null(a[2])) ||
 552                             !streq_ptr(c->x11_variant, empty_or_dash_to_null(a[3])) ||
 553                             !streq_ptr(c->x11_options, empty_or_dash_to_null(a[4]))) {
 554
 555                                 if (free_and_strdup(&c->x11_layout, empty_or_dash_to_null(a[1])) < 0 ||
 556                                     free_and_strdup(&c->x11_model, empty_or_dash_to_null(a[2])) < 0 ||
 557                                     free_and_strdup(&c->x11_variant, empty_or_dash_to_null(a[3])) < 0 ||
 558                                     free_and_strdup(&c->x11_options, empty_or_dash_to_null(a[4])) < 0)
 559                                         return -ENOMEM;
 560
 561                                 modified = true;
 562                         }
 563
 564                         break;
 565                 }
 566         }
 567
 568         if (modified > 0)
 569                 log_info("Changing X11 keyboard layout to '%s' model '%s' variant '%s' options '%s'",
 570                          strempty(c->x11_layout),
 571                          strempty(c->x11_model),
 572                          strempty(c->x11_variant),
 573                          strempty(c->x11_options));
 574         else if (modified < 0)
 575                 log_notice("X11 keyboard layout was not modified: no conversion found for \"%s\".",
 576                            c->vc_keymap);
 577         else
 578                 log_debug("X11 keyboard layout did not need to be modified.");
 579
 580         return modified > 0;
 581 }
 582
 583 int find_converted_keymap(const char *x11_layout, const char *x11_variant, char **new_keymap) {
 584         const char *dir;
 585         _cleanup_free_ char *n;
 586
 587         if (x11_variant)
 588                 n = strjoin(x11_layout, "-", x11_variant);
 589         else
 590                 n = strdup(x11_layout);
 591         if (!n)
 592                 return -ENOMEM;
 593
 594         NULSTR_FOREACH(dir, KBD_KEYMAP_DIRS) {
 595                 _cleanup_free_ char *p = NULL, *pz = NULL;
 596                 bool uncompressed;
 597
 598                 p = strjoin(dir, "xkb/", n, ".map");
 599                 pz = strjoin(dir, "xkb/", n, ".map.gz");
 600                 if (!p || !pz)
 601                         return -ENOMEM;
 602
 603                 uncompressed = access(p, F_OK) == 0;
 604                 if (uncompressed || access(pz, F_OK) == 0) {
 605                         log_debug("Found converted keymap %s at %s",
 606                                   n, uncompressed ? p : pz);
 607
 608                         *new_keymap = TAKE_PTR(n);
 609                         return 1;
 610                 }
 611         }
 612
 613         return 0;
 614 }
 615
 616 int find_legacy_keymap(Context *c, char **ret) {
 617         const char *map;
 618         _cleanup_fclose_ FILE *f = NULL;
 619         _cleanup_free_ char *new_keymap = NULL;
 620         unsigned n = 0;
 621         unsigned best_matching = 0;
 622         int r;
 623
 624         assert(!isempty(c->x11_layout));
 625
 626         map = systemd_kbd_model_map();
 627
 628         f = fopen(map, "re");
 629         if (!f)
 630                 return -errno;
 631
 632         for (;;) {
 633                 _cleanup_strv_free_ char **a = NULL;
 634                 unsigned matching = 0;
 635
 636                 r = read_next_mapping(map, 5, UINT_MAX, f, &n, &a);
 637                 if (r < 0)
 638                         return r;
 639                 if (r == 0)
 640                         break;
 641
 642                 /* Determine how well matching this entry is */
 643                 if (streq(c->x11_layout, a[1]))
 644                         /* If we got an exact match, this is best */
 645                         matching = 10;
 646                 else {
 647                         /* We have multiple X layouts, look for an
 648                          * entry that matches our key with everything
 649                          * but the first layout stripped off. */
 650                         if (startswith_comma(c->x11_layout, a[1]))
 651                                 matching = 5;
 652                         else  {
 653                                 char *x;
 654
 655                                 /* If that didn't work, strip off the
 656                                  * other layouts from the entry, too */
 657                                 x = strndupa(a[1], strcspn(a[1], ","));
 658                                 if (startswith_comma(c->x11_layout, x))
 659                                         matching = 1;
 660                         }
 661                 }
 662
 663                 if (matching > 0) {
 664                         if (isempty(c->x11_model) || streq_ptr(c->x11_model, a[2])) {
 665                                 matching++;
 666
 667                                 if (streq_ptr(c->x11_variant, a[3])) {
 668                                         matching++;
 669
 670                                         if (streq_ptr(c->x11_options, a[4]))
 671                                                 matching++;
 672                                 }
 673                         }
 674                 }
 675
 676                 /* The best matching entry so far, then let's save that */
 677                 if (matching >= MAX(best_matching, 1u)) {
 678                         log_debug("Found legacy keymap %s with score %u",
 679                                   a[0], matching);
 680
 681                         if (matching > best_matching) {
 682                                 best_matching = matching;
 683
 684                                 r = free_and_strdup(&new_keymap, a[0]);
 685                                 if (r < 0)
 686                                         return r;
 687                         }
 688                 }
 689         }
 690
 691         if (best_matching < 10 && c->x11_layout) {
 692                 /* The best match is only the first part of the X11
 693                  * keymap. Check if we have a converted map which
 694                  * matches just the first layout.
 695                  */
 696                 char *l, *v = NULL, *converted;
 697
 698                 l = strndupa(c->x11_layout, strcspn(c->x11_layout, ","));
 699                 if (c->x11_variant)
 700                         v = strndupa(c->x11_variant, strcspn(c->x11_variant, ","));
 701                 r = find_converted_keymap(l, v, &converted);
 702                 if (r < 0)
 703                         return r;
 704                 if (r > 0)
 705                         free_and_replace(new_keymap, converted);
 706         }
 707
 708         *ret = TAKE_PTR(new_keymap);
 709         return (bool) *ret;
 710 }
 711
 712 int find_language_fallback(const char *lang, char **language) {
 713         const char *map;
 714         _cleanup_fclose_ FILE *f = NULL;
 715         unsigned n = 0;
 716
 717         assert(lang);
 718         assert(language);
 719
 720         map = systemd_language_fallback_map();
 721
 722         f = fopen(map, "re");
 723         if (!f)
 724                 return -errno;
 725
 726         for (;;) {
 727                 _cleanup_strv_free_ char **a = NULL;
 728                 int r;
 729
 730                 r = read_next_mapping(map, 2, 2, f, &n, &a);
 731                 if (r <= 0)
 732                         return r;
 733
 734                 if (streq(lang, a[0])) {
 735                         assert(strv_length(a) == 2);
 736                         *language = TAKE_PTR(a[1]);
 737                         return 1;
 738                 }
 739         }
 740
 741         assert_not_reached("should not be here");
 742 }
 743
 744 int x11_convert_to_vconsole(Context *c) {
 745         bool modified = false;
 746
 747         if (isempty(c->x11_layout)) {
 748                 modified =
 749                         !isempty(c->vc_keymap) ||
 750                         !isempty(c->vc_keymap_toggle);
 751
 752                 context_free_vconsole(c);
 753         } else {
 754                 _cleanup_free_ char *new_keymap = NULL;
 755                 int r;
 756
 757                 r = find_converted_keymap(c->x11_layout, c->x11_variant, &new_keymap);
 758                 if (r < 0)
 759                         return r;
 760                 else if (r == 0) {
 761                         r = find_legacy_keymap(c, &new_keymap);
 762                         if (r < 0)
 763                                 return r;
 764                 }
 765                 if (r == 0)
 766                         /* We search for layout-variant match first, but then we also look
 767                          * for anything which matches just the layout. So it's accurate to say
 768                          * that we couldn't find anything which matches the layout. */
 769                         log_notice("No conversion to virtual console map found for \"%s\".",
 770                                    c->x11_layout);
 771
 772                 if (!streq_ptr(c->vc_keymap, new_keymap)) {
 773                         free_and_replace(c->vc_keymap, new_keymap);
 774                         c->vc_keymap_toggle = mfree(c->vc_keymap_toggle);
 775                         modified = true;
 776                 }
 777         }
 778
 779         if (modified)
 780                 log_info("Changing virtual console keymap to '%s' toggle '%s'",
 781                          strempty(c->vc_keymap), strempty(c->vc_keymap_toggle));
 782         else
 783                 log_debug("Virtual console keymap was not modified.");
 784
 785         return modified;
 786 }