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-rw-r--r--src/locale/localed-util.c1161
1 files changed, 1161 insertions, 0 deletions
diff --git a/src/locale/localed-util.c b/src/locale/localed-util.c
new file mode 100644
index 0000000..e4e57a0
--- /dev/null
+++ b/src/locale/localed-util.c
@@ -0,0 +1,1161 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include "bus-polkit.h"
+#include "copy.h"
+#include "env-file-label.h"
+#include "env-file.h"
+#include "env-util.h"
+#include "fd-util.h"
+#include "fileio-label.h"
+#include "fileio.h"
+#include "fs-util.h"
+#include "kbd-util.h"
+#include "localed-util.h"
+#include "macro.h"
+#include "mkdir-label.h"
+#include "nulstr-util.h"
+#include "process-util.h"
+#include "stat-util.h"
+#include "string-util.h"
+#include "strv.h"
+#include "tmpfile-util.h"
+#include "xkbcommon-util.h"
+
+static bool startswith_comma(const char *s, const char *prefix) {
+ assert(s);
+ assert(prefix);
+
+ s = startswith(s, prefix);
+ if (!s)
+ return false;
+
+ return IN_SET(*s, ',', '\0');
+}
+
+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;
+}
+
+void x11_context_clear(X11Context *xc) {
+ assert(xc);
+
+ xc->layout = mfree(xc->layout);
+ xc->options = mfree(xc->options);
+ xc->model = mfree(xc->model);
+ xc->variant = mfree(xc->variant);
+}
+
+void x11_context_replace(X11Context *dest, X11Context *src) {
+ assert(dest);
+ assert(src);
+
+ x11_context_clear(dest);
+ *dest = TAKE_STRUCT(*src);
+}
+
+bool x11_context_isempty(const X11Context *xc) {
+ assert(xc);
+
+ return
+ isempty(xc->layout) &&
+ isempty(xc->model) &&
+ isempty(xc->variant) &&
+ isempty(xc->options);
+}
+
+void x11_context_empty_to_null(X11Context *xc) {
+ assert(xc);
+
+ /* Do not call x11_context_clear() for the passed object. */
+
+ xc->layout = empty_to_null(xc->layout);
+ xc->model = empty_to_null(xc->model);
+ xc->variant = empty_to_null(xc->variant);
+ xc->options = empty_to_null(xc->options);
+}
+
+bool x11_context_is_safe(const X11Context *xc) {
+ assert(xc);
+
+ return
+ (!xc->layout || string_is_safe(xc->layout)) &&
+ (!xc->model || string_is_safe(xc->model)) &&
+ (!xc->variant || string_is_safe(xc->variant)) &&
+ (!xc->options || string_is_safe(xc->options));
+}
+
+bool x11_context_equal(const X11Context *a, const X11Context *b) {
+ assert(a);
+ assert(b);
+
+ return
+ streq_ptr(a->layout, b->layout) &&
+ streq_ptr(a->model, b->model) &&
+ streq_ptr(a->variant, b->variant) &&
+ streq_ptr(a->options, b->options);
+}
+
+int x11_context_copy(X11Context *dest, const X11Context *src) {
+ bool modified;
+ int r;
+
+ assert(dest);
+
+ if (dest == src)
+ return 0;
+
+ if (!src) {
+ modified = !x11_context_isempty(dest);
+ x11_context_clear(dest);
+ return modified;
+ }
+
+ r = free_and_strdup(&dest->layout, src->layout);
+ if (r < 0)
+ return r;
+ modified = r > 0;
+
+ r = free_and_strdup(&dest->model, src->model);
+ if (r < 0)
+ return r;
+ modified = modified || r > 0;
+
+ r = free_and_strdup(&dest->variant, src->variant);
+ if (r < 0)
+ return r;
+ modified = modified || r > 0;
+
+ r = free_and_strdup(&dest->options, src->options);
+ if (r < 0)
+ return r;
+ modified = modified || r > 0;
+
+ return modified;
+}
+
+int x11_context_verify_and_warn(const X11Context *xc, int log_level, sd_bus_error *error) {
+ int r;
+
+ assert(xc);
+
+ if (!x11_context_is_safe(xc)) {
+ if (error)
+ sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid X11 keyboard layout.");
+ return log_full_errno(log_level, SYNTHETIC_ERRNO(EINVAL), "Invalid X11 keyboard layout.");
+ }
+
+ r = verify_xkb_rmlvo(xc->model, xc->layout, xc->variant, xc->options);
+ if (r == -EOPNOTSUPP) {
+ log_full_errno(MAX(log_level, LOG_NOTICE), r,
+ "Cannot verify if new keymap is correct, libxkbcommon.so unavailable.");
+ return 0;
+ }
+ if (r < 0) {
+ if (error)
+ sd_bus_error_set_errnof(error, r, "Specified keymap cannot be compiled, refusing as invalid.");
+ return log_full_errno(log_level, r,
+ "Cannot compile XKB keymap for x11 keyboard layout "
+ "(model='%s' / layout='%s' / variant='%s' / options='%s'): %m",
+ strempty(xc->model), strempty(xc->layout), strempty(xc->variant), strempty(xc->options));
+ }
+
+ return 0;
+}
+
+void vc_context_clear(VCContext *vc) {
+ assert(vc);
+
+ vc->keymap = mfree(vc->keymap);
+ vc->toggle = mfree(vc->toggle);
+}
+
+void vc_context_replace(VCContext *dest, VCContext *src) {
+ assert(dest);
+ assert(src);
+
+ vc_context_clear(dest);
+ *dest = TAKE_STRUCT(*src);
+}
+
+bool vc_context_isempty(const VCContext *vc) {
+ assert(vc);
+
+ return
+ isempty(vc->keymap) &&
+ isempty(vc->toggle);
+}
+
+void vc_context_empty_to_null(VCContext *vc) {
+ assert(vc);
+
+ /* Do not call vc_context_clear() for the passed object. */
+
+ vc->keymap = empty_to_null(vc->keymap);
+ vc->toggle = empty_to_null(vc->toggle);
+}
+
+bool vc_context_equal(const VCContext *a, const VCContext *b) {
+ assert(a);
+ assert(b);
+
+ return
+ streq_ptr(a->keymap, b->keymap) &&
+ streq_ptr(a->toggle, b->toggle);
+}
+
+int vc_context_copy(VCContext *dest, const VCContext *src) {
+ bool modified;
+ int r;
+
+ assert(dest);
+
+ if (dest == src)
+ return 0;
+
+ if (!src) {
+ modified = !vc_context_isempty(dest);
+ vc_context_clear(dest);
+ return modified;
+ }
+
+ r = free_and_strdup(&dest->keymap, src->keymap);
+ if (r < 0)
+ return r;
+ modified = r > 0;
+
+ r = free_and_strdup(&dest->toggle, src->toggle);
+ if (r < 0)
+ return r;
+ modified = modified || r > 0;
+
+ return modified;
+}
+
+static int verify_keymap(const char *keymap, int log_level, sd_bus_error *error) {
+ int r;
+
+ assert(keymap);
+
+ r = keymap_exists(keymap); /* This also verifies that the keymap name is kosher. */
+ if (r < 0) {
+ if (error)
+ sd_bus_error_set_errnof(error, r, "Failed to check keymap %s: %m", keymap);
+ return log_full_errno(log_level, r, "Failed to check keymap %s: %m", keymap);
+ }
+ if (r == 0) {
+ if (error)
+ sd_bus_error_setf(error, SD_BUS_ERROR_FAILED, "Keymap %s is not installed.", keymap);
+ return log_full_errno(log_level, SYNTHETIC_ERRNO(ENOENT), "Keymap %s is not installed.", keymap);
+ }
+
+ return 0;
+}
+
+int vc_context_verify_and_warn(const VCContext *vc, int log_level, sd_bus_error *error) {
+ int r;
+
+ assert(vc);
+
+ if (vc->keymap) {
+ r = verify_keymap(vc->keymap, log_level, error);
+ if (r < 0)
+ return r;
+ }
+
+ if (vc->toggle) {
+ r = verify_keymap(vc->toggle, log_level, error);
+ if (r < 0)
+ return r;
+ }
+
+ return 0;
+}
+
+void context_clear(Context *c) {
+ assert(c);
+
+ locale_context_clear(&c->locale_context);
+ x11_context_clear(&c->x11_from_xorg);
+ x11_context_clear(&c->x11_from_vc);
+ vc_context_clear(&c->vc);
+
+ c->locale_cache = sd_bus_message_unref(c->locale_cache);
+ c->x11_cache = sd_bus_message_unref(c->x11_cache);
+ c->vc_cache = sd_bus_message_unref(c->vc_cache);
+
+ c->polkit_registry = bus_verify_polkit_async_registry_free(c->polkit_registry);
+};
+
+X11Context *context_get_x11_context(Context *c) {
+ assert(c);
+
+ if (!x11_context_isempty(&c->x11_from_vc))
+ return &c->x11_from_vc;
+
+ if (!x11_context_isempty(&c->x11_from_xorg))
+ return &c->x11_from_xorg;
+
+ return &c->x11_from_vc;
+}
+
+int locale_read_data(Context *c, sd_bus_message *m) {
+ assert(c);
+
+ /* 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);
+ }
+
+ return locale_context_load(&c->locale_context, LOCALE_LOAD_LOCALE_CONF | LOCALE_LOAD_ENVIRONMENT | LOCALE_LOAD_SIMPLIFY);
+}
+
+int vconsole_read_data(Context *c, sd_bus_message *m) {
+ _cleanup_close_ int fd = -EBADF;
+ struct stat st;
+ int r;
+
+ assert(c);
+
+ /* 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);
+ }
+
+ fd = RET_NERRNO(open("/etc/vconsole.conf", O_CLOEXEC | O_PATH));
+ if (fd == -ENOENT) {
+ c->vc_stat = (struct stat) {};
+ vc_context_clear(&c->vc);
+ x11_context_clear(&c->x11_from_vc);
+ return 0;
+ }
+ if (fd < 0)
+ return fd;
+
+ if (fstat(fd, &st) < 0)
+ return -errno;
+
+ /* If the file is not changed, then we do not need to re-read */
+ if (stat_inode_unmodified(&c->vc_stat, &st))
+ return 0;
+
+ c->vc_stat = st;
+ vc_context_clear(&c->vc);
+ x11_context_clear(&c->x11_from_vc);
+
+ r = parse_env_file_fd(
+ fd, "/etc/vconsole.conf",
+ "KEYMAP", &c->vc.keymap,
+ "KEYMAP_TOGGLE", &c->vc.toggle,
+ "XKBLAYOUT", &c->x11_from_vc.layout,
+ "XKBMODEL", &c->x11_from_vc.model,
+ "XKBVARIANT", &c->x11_from_vc.variant,
+ "XKBOPTIONS", &c->x11_from_vc.options);
+ if (r < 0)
+ return r;
+
+ if (vc_context_verify(&c->vc) < 0)
+ vc_context_clear(&c->vc);
+
+ if (x11_context_verify(&c->x11_from_vc) < 0)
+ x11_context_clear(&c->x11_from_vc);
+
+ return 0;
+}
+
+int x11_read_data(Context *c, sd_bus_message *m) {
+ _cleanup_close_ int fd = -EBADF;
+ _cleanup_fclose_ FILE *f = NULL;
+ bool in_section = false;
+ struct stat st;
+ int r;
+
+ assert(c);
+
+ /* 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);
+ }
+
+ fd = RET_NERRNO(open("/etc/X11/xorg.conf.d/00-keyboard.conf", O_CLOEXEC | O_PATH));
+ if (fd == -ENOENT) {
+ c->x11_stat = (struct stat) {};
+ x11_context_clear(&c->x11_from_xorg);
+ return 0;
+ }
+ if (fd < 0)
+ return fd;
+
+ if (fstat(fd, &st) < 0)
+ return -errno;
+
+ /* If the file is not changed, then we do not need to re-read */
+ if (stat_inode_unmodified(&c->x11_stat, &st))
+ return 0;
+
+ c->x11_stat = st;
+ x11_context_clear(&c->x11_from_xorg);
+
+ r = fdopen_independent(fd, "re", &f);
+ if (r < 0)
+ return r;
+
+ for (;;) {
+ _cleanup_free_ char *line = NULL;
+
+ r = read_stripped_line(f, LONG_LINE_MAX, &line);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ break;
+
+ if (IN_SET(line[0], 0, '#'))
+ continue;
+
+ if (in_section && first_word(line, "Option")) {
+ _cleanup_strv_free_ char **a = NULL;
+
+ r = strv_split_full(&a, line, WHITESPACE, EXTRACT_UNQUOTE);
+ if (r < 0)
+ return r;
+
+ if (strv_length(a) == 3) {
+ char **p = NULL;
+
+ if (streq(a[1], "XkbLayout"))
+ p = &c->x11_from_xorg.layout;
+ else if (streq(a[1], "XkbModel"))
+ p = &c->x11_from_xorg.model;
+ else if (streq(a[1], "XkbVariant"))
+ p = &c->x11_from_xorg.variant;
+ else if (streq(a[1], "XkbOptions"))
+ p = &c->x11_from_xorg.options;
+
+ if (p)
+ free_and_replace(*p, a[2]);
+ }
+
+ } else if (!in_section && first_word(line, "Section")) {
+ _cleanup_strv_free_ char **a = NULL;
+
+ r = strv_split_full(&a, line, WHITESPACE, EXTRACT_UNQUOTE);
+ if (r < 0)
+ return -ENOMEM;
+
+ if (strv_length(a) == 2 && streq(a[1], "InputClass"))
+ in_section = true;
+
+ } else if (in_section && first_word(line, "EndSection"))
+ in_section = false;
+ }
+
+ if (x11_context_verify(&c->x11_from_xorg) < 0)
+ x11_context_clear(&c->x11_from_xorg);
+
+ return 0;
+}
+
+int vconsole_write_data(Context *c) {
+ _cleanup_strv_free_ char **l = NULL;
+ const X11Context *xc;
+ int r;
+
+ assert(c);
+
+ xc = context_get_x11_context(c);
+
+ r = load_env_file(NULL, "/etc/vconsole.conf", &l);
+ if (r < 0 && r != -ENOENT)
+ return r;
+
+ r = strv_env_assign(&l, "KEYMAP", empty_to_null(c->vc.keymap));
+ if (r < 0)
+ return r;
+
+ r = strv_env_assign(&l, "KEYMAP_TOGGLE", empty_to_null(c->vc.toggle));
+ if (r < 0)
+ return r;
+
+ r = strv_env_assign(&l, "XKBLAYOUT", empty_to_null(xc->layout));
+ if (r < 0)
+ return r;
+
+ r = strv_env_assign(&l, "XKBMODEL", empty_to_null(xc->model));
+ if (r < 0)
+ return r;
+
+ r = strv_env_assign(&l, "XKBVARIANT", empty_to_null(xc->variant));
+ if (r < 0)
+ return r;
+
+ r = strv_env_assign(&l, "XKBOPTIONS", empty_to_null(xc->options));
+ if (r < 0)
+ return r;
+
+ if (strv_isempty(l)) {
+ if (unlink("/etc/vconsole.conf") < 0)
+ return errno == ENOENT ? 0 : -errno;
+
+ c->vc_stat = (struct stat) {};
+ return 0;
+ }
+
+ r = write_vconsole_conf_label(l);
+ if (r < 0)
+ return r;
+
+ if (stat("/etc/vconsole.conf", &c->vc_stat) < 0)
+ return -errno;
+
+ return 0;
+}
+
+int x11_write_data(Context *c) {
+ _cleanup_fclose_ FILE *f = NULL;
+ _cleanup_(unlink_and_freep) char *temp_path = NULL;
+ const X11Context *xc;
+ int r;
+
+ assert(c);
+
+ xc = context_get_x11_context(c);
+ if (x11_context_isempty(xc)) {
+ if (unlink("/etc/X11/xorg.conf.d/00-keyboard.conf") < 0)
+ return errno == ENOENT ? 0 : -errno;
+
+ c->x11_stat = (struct stat) {};
+ return 0;
+ }
+
+ (void) 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) 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"
+ "# update this file.\n"
+ "Section \"InputClass\"\n"
+ " Identifier \"system-keyboard\"\n"
+ " MatchIsKeyboard \"on\"\n", f);
+
+ if (!isempty(xc->layout))
+ fprintf(f, " Option \"XkbLayout\" \"%s\"\n", xc->layout);
+
+ if (!isempty(xc->model))
+ fprintf(f, " Option \"XkbModel\" \"%s\"\n", xc->model);
+
+ if (!isempty(xc->variant))
+ fprintf(f, " Option \"XkbVariant\" \"%s\"\n", xc->variant);
+
+ if (!isempty(xc->options))
+ fprintf(f, " Option \"XkbOptions\" \"%s\"\n", xc->options);
+
+ fputs("EndSection\n", f);
+
+ r = fflush_sync_and_check(f);
+ if (r < 0)
+ return r;
+
+ if (rename(temp_path, "/etc/X11/xorg.conf.d/00-keyboard.conf") < 0)
+ return -errno;
+
+ if (stat("/etc/X11/xorg.conf.d/00-keyboard.conf", &c->x11_stat) < 0)
+ return -errno;
+
+ return 0;
+}
+
+static int read_next_mapping(
+ const char *filename,
+ unsigned min_fields,
+ unsigned max_fields,
+ FILE *f,
+ unsigned *n,
+ char ***ret) {
+
+ assert(f);
+ assert(n);
+ assert(ret);
+
+ for (;;) {
+ _cleanup_strv_free_ char **b = NULL;
+ _cleanup_free_ char *line = NULL;
+ size_t length;
+ int r;
+
+ r = read_stripped_line(f, LONG_LINE_MAX, &line);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ break;
+
+ (*n)++;
+
+ if (IN_SET(line[0], 0, '#'))
+ continue;
+
+ r = strv_split_full(&b, line, WHITESPACE, EXTRACT_UNQUOTE);
+ if (r < 0)
+ return r;
+
+ length = strv_length(b);
+ if (length < min_fields || length > max_fields) {
+ log_debug("Invalid line %s:%u, ignoring.", strna(filename), *n);
+ continue;
+
+ }
+
+ *ret = TAKE_PTR(b);
+ return 1;
+ }
+
+ *ret = NULL;
+ return 0;
+}
+
+int vconsole_convert_to_x11(const VCContext *vc, X11Context *ret) {
+ _cleanup_fclose_ FILE *f = NULL;
+ const char *map;
+ X11Context xc;
+ int r;
+
+ assert(vc);
+ assert(ret);
+
+ if (isempty(vc->keymap)) {
+ *ret = (X11Context) {};
+ return 0;
+ }
+
+ map = systemd_kbd_model_map();
+ f = fopen(map, "re");
+ if (!f)
+ return -errno;
+
+ for (unsigned n = 0;;) {
+ _cleanup_strv_free_ char **a = NULL;
+
+ r = read_next_mapping(map, 5, UINT_MAX, f, &n, &a);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ break;
+
+ if (!streq(vc->keymap, a[0]))
+ continue;
+
+ xc = (X11Context) {
+ .layout = empty_or_dash_to_null(a[1]),
+ .model = empty_or_dash_to_null(a[2]),
+ .variant = empty_or_dash_to_null(a[3]),
+ .options = empty_or_dash_to_null(a[4]),
+ };
+
+ if (x11_context_verify(&xc) < 0)
+ continue;
+
+ return x11_context_copy(ret, &xc);
+ }
+
+ /* No custom mapping has been found, see if the keymap is a converted one. In such case deducing the
+ * corresponding x11 layout is easy. */
+ _cleanup_free_ char *xlayout = NULL, *converted = NULL;
+ char *xvariant;
+
+ xlayout = strdup(vc->keymap);
+ if (!xlayout)
+ return -ENOMEM;
+ xvariant = strchr(xlayout, '-');
+ if (xvariant) {
+ xvariant[0] = '\0';
+ xvariant++;
+ }
+
+ /* Note: by default we use keyboard model "microsoftpro" which should be equivalent to "pc105" but
+ * with the internet/media key mapping added. */
+ xc = (X11Context) {
+ .layout = xlayout,
+ .model = (char*) "microsoftpro",
+ .variant = xvariant,
+ .options = (char*) "terminate:ctrl_alt_bksp",
+ };
+
+ /* This sanity check seems redundant with the verification of the X11 layout done on the next
+ * step. However xkbcommon is an optional dependency hence the verification might be a NOP. */
+ r = find_converted_keymap(&xc, &converted);
+ if (r == 0 && xc.variant) {
+ /* If we still haven't find a match, try with no variant, it's still better than nothing. */
+ xc.variant = NULL;
+ r = find_converted_keymap(&xc, &converted);
+ }
+ if (r < 0)
+ return r;
+
+ if (r == 0 || x11_context_verify(&xc) < 0) {
+ *ret = (X11Context) {};
+ return 0;
+ }
+
+ return x11_context_copy(ret, &xc);
+}
+
+int find_converted_keymap(const X11Context *xc, char **ret) {
+ _cleanup_free_ char *n = NULL;
+
+ assert(xc);
+ assert(!isempty(xc->layout));
+ assert(ret);
+
+ if (xc->variant)
+ n = strjoin(xc->layout, "-", xc->variant);
+ else
+ n = strdup(xc->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);
+ *ret = TAKE_PTR(n);
+ return 1;
+ }
+ }
+
+ *ret = NULL;
+ return 0;
+}
+
+int find_legacy_keymap(const X11Context *xc, char **ret) {
+ const char *map;
+ _cleanup_fclose_ FILE *f = NULL;
+ _cleanup_free_ char *new_keymap = NULL;
+ unsigned best_matching = 0;
+ int r;
+
+ assert(xc);
+ assert(!isempty(xc->layout));
+
+ map = systemd_kbd_model_map();
+ f = fopen(map, "re");
+ if (!f)
+ return -errno;
+
+ for (unsigned n = 0;;) {
+ _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(xc->layout, a[1]))
+ /* If we got an exact match, this is the best */
+ matching = 10;
+ else {
+ /* see if we get an exact match with the order reversed */
+ _cleanup_strv_free_ char **b = NULL;
+ _cleanup_free_ char *c = NULL;
+ r = strv_split_full(&b, a[1], ",", 0);
+ if (r < 0)
+ return r;
+ strv_reverse(b);
+ c = strv_join(b, ",");
+ if (!c)
+ return log_oom();
+ if (streq(xc->layout, c))
+ matching = 9;
+ 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(xc->layout, a[1]))
+ matching = 5;
+ else {
+ _cleanup_free_ char *x = NULL;
+
+ /* If that didn't work, strip off the
+ * other layouts from the entry, too */
+ x = strdupcspn(a[1], ",");
+ if (!x)
+ return -ENOMEM;
+ if (startswith_comma(xc->layout, x))
+ matching = 1;
+ }
+ }
+ }
+
+ if (matching > 0) {
+ if (isempty(xc->model) || streq_ptr(xc->model, a[2])) {
+ matching++;
+
+ if (streq_ptr(xc->variant, a[3]) || ((isempty(xc->variant) || streq_skip_trailing_chars(xc->variant, "", ",")) && streq(a[3], "-"))) {
+ matching++;
+
+ if (streq_ptr(xc->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 < 9 && !isempty(xc->layout)) {
+ _cleanup_free_ char *l = NULL, *v = NULL, *converted = NULL;
+
+ /* 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.
+ */
+
+ l = strdupcspn(xc->layout, ",");
+ if (!l)
+ return -ENOMEM;
+
+ if (!isempty(xc->variant)) {
+ v = strdupcspn(xc->variant, ",");
+ if (!v)
+ return -ENOMEM;
+ }
+
+ r = find_converted_keymap(
+ &(X11Context) {
+ .layout = l,
+ .variant = v,
+ },
+ &converted);
+ if (r < 0)
+ return r;
+ if (r > 0)
+ free_and_replace(new_keymap, converted);
+ }
+
+ *ret = TAKE_PTR(new_keymap);
+ return !!*ret;
+}
+
+int x11_convert_to_vconsole(const X11Context *xc, VCContext *ret) {
+ _cleanup_free_ char *keymap = NULL;
+ int r;
+
+ assert(xc);
+ assert(ret);
+
+ if (isempty(xc->layout)) {
+ *ret = (VCContext) {};
+ return 0;
+ }
+
+ r = find_converted_keymap(xc, &keymap);
+ if (r == 0) {
+ r = find_legacy_keymap(xc, &keymap);
+ if (r == 0 && xc->variant)
+ /* If we still haven't find a match, try with no variant, it's still better than
+ * nothing. */
+ r = find_converted_keymap(
+ &(X11Context) {
+ .layout = xc->layout,
+ },
+ &keymap);
+ }
+ if (r < 0)
+ return r;
+
+ *ret = (VCContext) {
+ .keymap = TAKE_PTR(keymap),
+ };
+ return 0;
+}
+
+int find_language_fallback(const char *lang, char **ret) {
+ const char *map;
+ _cleanup_fclose_ FILE *f = NULL;
+ unsigned n = 0;
+ int r;
+
+ assert(lang);
+ assert(ret);
+
+ map = systemd_language_fallback_map();
+ f = fopen(map, "re");
+ if (!f)
+ return -errno;
+
+ for (;;) {
+ _cleanup_strv_free_ char **a = NULL;
+
+ 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);
+ *ret = TAKE_PTR(a[1]);
+ return 1;
+ }
+ }
+}
+
+bool locale_gen_check_available(void) {
+#if HAVE_LOCALEGEN
+ if (access(LOCALEGEN_PATH, X_OK) < 0) {
+ if (errno != ENOENT)
+ log_warning_errno(errno, "Unable to determine whether " LOCALEGEN_PATH " exists and is executable, assuming it is not: %m");
+ return false;
+ }
+ if (access("/etc/locale.gen", F_OK) < 0) {
+ if (errno != ENOENT)
+ log_warning_errno(errno, "Unable to determine whether /etc/locale.gen exists, assuming it does not: %m");
+ return false;
+ }
+ return true;
+#else
+ return false;
+#endif
+}
+
+#if HAVE_LOCALEGEN
+static bool locale_encoding_is_utf8_or_unspecified(const char *locale) {
+ const char *c = strchr(locale, '.');
+ return !c || strcaseeq(c, ".UTF-8") || strcasestr(locale, ".UTF-8@");
+}
+
+static int locale_gen_locale_supported(const char *locale_entry) {
+ /* Returns an error valus <= 0 if the locale-gen entry is invalid or unsupported,
+ * 1 in case the locale entry is valid, and -EOPNOTSUPP specifically in case
+ * the distributor has not provided us with a SUPPORTED file to check
+ * locale for validity. */
+
+ _cleanup_fclose_ FILE *f = NULL;
+ int r;
+
+ assert(locale_entry);
+
+ /* Locale templates without country code are never supported */
+ if (!strstr(locale_entry, "_"))
+ return -EINVAL;
+
+ f = fopen("/usr/share/i18n/SUPPORTED", "re");
+ if (!f) {
+ if (errno == ENOENT)
+ return log_debug_errno(SYNTHETIC_ERRNO(EOPNOTSUPP),
+ "Unable to check validity of locale entry %s: /usr/share/i18n/SUPPORTED does not exist",
+ locale_entry);
+ return -errno;
+ }
+
+ for (;;) {
+ _cleanup_free_ char *line = NULL;
+
+ r = read_stripped_line(f, LONG_LINE_MAX, &line);
+ if (r < 0)
+ return log_debug_errno(r, "Failed to read /usr/share/i18n/SUPPORTED: %m");
+ if (r == 0)
+ return 0;
+
+ if (strcaseeq_ptr(line, locale_entry))
+ return 1;
+ }
+}
+#endif
+
+int locale_gen_enable_locale(const char *locale) {
+#if HAVE_LOCALEGEN
+ _cleanup_fclose_ FILE *fr = NULL, *fw = NULL;
+ _cleanup_(unlink_and_freep) char *temp_path = NULL;
+ _cleanup_free_ char *locale_entry = NULL;
+ bool locale_enabled = false, first_line = false;
+ bool write_new = false;
+ int r;
+
+ if (isempty(locale))
+ return 0;
+
+ if (locale_encoding_is_utf8_or_unspecified(locale)) {
+ locale_entry = strjoin(locale, " UTF-8");
+ if (!locale_entry)
+ return -ENOMEM;
+ } else
+ return -ENOEXEC; /* We do not process non-UTF-8 locale */
+
+ r = locale_gen_locale_supported(locale_entry);
+ if (r == 0)
+ return -EINVAL;
+ if (r < 0 && r != -EOPNOTSUPP)
+ return r;
+
+ fr = fopen("/etc/locale.gen", "re");
+ if (!fr) {
+ if (errno != ENOENT)
+ return -errno;
+ write_new = true;
+ }
+
+ r = fopen_temporary("/etc/locale.gen", &fw, &temp_path);
+ if (r < 0)
+ return r;
+
+ if (write_new)
+ (void) fchmod(fileno(fw), 0644);
+ else {
+ /* apply mode & xattrs of the original file to new file */
+ r = copy_access(fileno(fr), fileno(fw));
+ if (r < 0)
+ return r;
+ r = copy_xattr(fileno(fr), NULL, fileno(fw), NULL, COPY_ALL_XATTRS);
+ if (r < 0)
+ log_debug_errno(r, "Failed to copy all xattrs from old to new /etc/locale.gen file, ignoring: %m");
+ }
+
+ if (!write_new) {
+ /* The config file ends with a line break, which we do not want to include before potentially appending a new locale
+ * instead of uncommenting an existing line. By prepending linebreaks, we can avoid buffering this file but can still write
+ * a nice config file without empty lines */
+ first_line = true;
+ for (;;) {
+ _cleanup_free_ char *line = NULL;
+ char *line_locale;
+
+ r = read_line(fr, LONG_LINE_MAX, &line);
+ if (r < 0)
+ return r;
+ if (r == 0)
+ break;
+
+ if (locale_enabled) {
+ /* Just complete writing the file if the new locale was already enabled */
+ if (!first_line)
+ fputc('\n', fw);
+ fputs(line, fw);
+ first_line = false;
+ continue;
+ }
+
+ line_locale = strstrip(line);
+ if (isempty(line_locale)) {
+ fputc('\n', fw);
+ first_line = false;
+ continue;
+ }
+
+ if (line_locale[0] == '#')
+ line_locale = strstrip(line_locale + 1);
+ else if (strcaseeq_ptr(line_locale, locale_entry))
+ return 0; /* the file already had our locale activated, so skip updating it */
+
+ if (strcaseeq_ptr(line_locale, locale_entry)) {
+ /* Uncomment existing line for new locale */
+ if (!first_line)
+ fputc('\n', fw);
+ fputs(locale_entry, fw);
+ locale_enabled = true;
+ first_line = false;
+ continue;
+ }
+
+ /* The line was not for the locale we want to enable, just copy it */
+ if (!first_line)
+ fputc('\n', fw);
+ fputs(line, fw);
+ first_line = false;
+ }
+ }
+
+ /* Add locale to enable to the end of the file if it was not found as commented line */
+ if (!locale_enabled) {
+ if (!write_new)
+ fputc('\n', fw);
+ fputs(locale_entry, fw);
+ }
+ fputc('\n', fw);
+
+ r = fflush_sync_and_check(fw);
+ if (r < 0)
+ return r;
+
+ if (rename(temp_path, "/etc/locale.gen") < 0)
+ return -errno;
+ temp_path = mfree(temp_path);
+
+ return 0;
+#else
+ return -EOPNOTSUPP;
+#endif
+}
+
+int locale_gen_run(void) {
+#if HAVE_LOCALEGEN
+ pid_t pid;
+ int r;
+
+ r = safe_fork("(sd-localegen)", FORK_RESET_SIGNALS|FORK_RLIMIT_NOFILE_SAFE|FORK_CLOSE_ALL_FDS|FORK_LOG|FORK_WAIT, &pid);
+ if (r < 0)
+ return r;
+ if (r == 0) {
+ execl(LOCALEGEN_PATH, LOCALEGEN_PATH, NULL);
+ _exit(EXIT_FAILURE);
+ }
+
+ return 0;
+#else
+ return -EOPNOTSUPP;
+#endif
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-12 03:02:28 +0000