648 lines
20 KiB
C
648 lines
20 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2012 Lennart Poettering
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Copyright 2013 Kay Sievers
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <locale.h>
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#include <stdlib.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include <getopt.h>
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#include <string.h>
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#include <ftw.h>
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#include <sys/mman.h>
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#include <fcntl.h>
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#include "sd-bus.h"
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#include "bus-util.h"
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#include "bus-error.h"
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#include "bus-message.h"
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#include "util.h"
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#include "spawn-polkit-agent.h"
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#include "build.h"
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#include "strv.h"
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#include "pager.h"
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#include "set.h"
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#include "path-util.h"
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#include "utf8.h"
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#include "def.h"
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#include "locale-util.h"
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static bool arg_no_pager = false;
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static bool arg_ask_password = true;
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static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
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static char *arg_host = NULL;
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static bool arg_convert = true;
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static void pager_open_if_enabled(void) {
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if (arg_no_pager)
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return;
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pager_open(false);
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}
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static void polkit_agent_open_if_enabled(void) {
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/* Open the polkit agent as a child process if necessary */
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if (!arg_ask_password)
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return;
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if (arg_transport != BUS_TRANSPORT_LOCAL)
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return;
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polkit_agent_open();
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}
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typedef struct StatusInfo {
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char **locale;
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const char *vconsole_keymap;
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const char *vconsole_keymap_toggle;
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const char *x11_layout;
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const char *x11_model;
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const char *x11_variant;
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const char *x11_options;
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} StatusInfo;
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static void print_status_info(StatusInfo *i) {
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assert(i);
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if (strv_isempty(i->locale))
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puts(" System Locale: n/a\n");
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else {
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char **j;
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printf(" System Locale: %s\n", i->locale[0]);
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STRV_FOREACH(j, i->locale + 1)
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printf(" %s\n", *j);
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}
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printf(" VC Keymap: %s\n", strna(i->vconsole_keymap));
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if (!isempty(i->vconsole_keymap_toggle))
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printf("VC Toggle Keymap: %s\n", i->vconsole_keymap_toggle);
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printf(" X11 Layout: %s\n", strna(i->x11_layout));
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if (!isempty(i->x11_model))
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printf(" X11 Model: %s\n", i->x11_model);
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if (!isempty(i->x11_variant))
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printf(" X11 Variant: %s\n", i->x11_variant);
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if (!isempty(i->x11_options))
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printf(" X11 Options: %s\n", i->x11_options);
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}
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static int show_status(sd_bus *bus, char **args, unsigned n) {
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StatusInfo info = {};
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static const struct bus_properties_map map[] = {
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{ "VConsoleKeymap", "s", NULL, offsetof(StatusInfo, vconsole_keymap) },
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{ "VConsoleKeymap", "s", NULL, offsetof(StatusInfo, vconsole_keymap) },
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{ "VConsoleKeymapToggle", "s", NULL, offsetof(StatusInfo, vconsole_keymap_toggle) },
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{ "X11Layout", "s", NULL, offsetof(StatusInfo, x11_layout) },
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{ "X11Model", "s", NULL, offsetof(StatusInfo, x11_model) },
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{ "X11Variant", "s", NULL, offsetof(StatusInfo, x11_variant) },
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{ "X11Options", "s", NULL, offsetof(StatusInfo, x11_options) },
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{ "Locale", "as", NULL, offsetof(StatusInfo, locale) },
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{}
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};
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int r;
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assert(bus);
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r = bus_map_all_properties(bus,
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"org.freedesktop.locale1",
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"/org/freedesktop/locale1",
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map,
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&info);
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if (r < 0) {
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log_error("Could not get properties: %s", strerror(-r));
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goto fail;
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}
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print_status_info(&info);
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fail:
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strv_free(info.locale);
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return r;
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}
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static int set_locale(sd_bus *bus, char **args, unsigned n) {
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_cleanup_bus_message_unref_ sd_bus_message *m = NULL;
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_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
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int r;
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assert(bus);
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assert(args);
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polkit_agent_open_if_enabled();
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r = sd_bus_message_new_method_call(
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bus,
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&m,
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"org.freedesktop.locale1",
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"/org/freedesktop/locale1",
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"org.freedesktop.locale1",
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"SetLocale");
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if (r < 0)
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return bus_log_create_error(r);
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r = sd_bus_message_append_strv(m, args + 1);
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if (r < 0)
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return bus_log_create_error(r);
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r = sd_bus_message_append(m, "b", arg_ask_password);
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if (r < 0)
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return bus_log_create_error(r);
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r = sd_bus_call(bus, m, 0, &error, NULL);
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if (r < 0) {
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log_error("Failed to issue method call: %s", bus_error_message(&error, -r));
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return r;
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}
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return 0;
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}
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static int list_locales(sd_bus *bus, char **args, unsigned n) {
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_cleanup_strv_free_ char **l = NULL;
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int r;
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assert(args);
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r = get_locales(&l);
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if (r < 0) {
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log_error("Failed to read list of locales: %s", strerror(-r));
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return r;
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}
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pager_open_if_enabled();
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strv_print(l);
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return 0;
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}
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static int set_vconsole_keymap(sd_bus *bus, char **args, unsigned n) {
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_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
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const char *map, *toggle_map;
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int r;
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assert(bus);
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assert(args);
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if (n > 3) {
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log_error("Too many arguments.");
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return -EINVAL;
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}
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polkit_agent_open_if_enabled();
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map = args[1];
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toggle_map = n > 2 ? args[2] : "";
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r = sd_bus_call_method(
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bus,
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"org.freedesktop.locale1",
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"/org/freedesktop/locale1",
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"org.freedesktop.locale1",
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"SetVConsoleKeyboard",
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&error,
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NULL,
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"ssbb", map, toggle_map, arg_convert, arg_ask_password);
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if (r < 0)
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log_error("Failed to set keymap: %s", bus_error_message(&error, -r));
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return r;
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}
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static Set *keymaps = NULL;
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static int nftw_cb(
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const char *fpath,
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const struct stat *sb,
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int tflag,
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struct FTW *ftwbuf) {
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char *p, *e;
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int r;
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if (tflag != FTW_F)
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return 0;
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if (!endswith(fpath, ".map") &&
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!endswith(fpath, ".map.gz"))
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return 0;
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p = strdup(basename(fpath));
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if (!p)
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return log_oom();
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e = endswith(p, ".map");
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if (e)
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*e = 0;
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e = endswith(p, ".map.gz");
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if (e)
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*e = 0;
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r = set_consume(keymaps, p);
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if (r < 0 && r != -EEXIST) {
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log_error("Can't add keymap: %s", strerror(-r));
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return r;
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}
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return 0;
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}
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static int list_vconsole_keymaps(sd_bus *bus, char **args, unsigned n) {
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_cleanup_strv_free_ char **l = NULL;
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const char *dir;
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keymaps = set_new(&string_hash_ops);
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if (!keymaps)
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return log_oom();
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NULSTR_FOREACH(dir, KBD_KEYMAP_DIRS)
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nftw(dir, nftw_cb, 20, FTW_MOUNT|FTW_PHYS);
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l = set_get_strv(keymaps);
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if (!l) {
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set_free_free(keymaps);
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return log_oom();
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}
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set_free(keymaps);
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if (strv_isempty(l)) {
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log_error("Couldn't find any console keymaps.");
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return -ENOENT;
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}
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strv_sort(l);
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pager_open_if_enabled();
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strv_print(l);
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return 0;
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}
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static int set_x11_keymap(sd_bus *bus, char **args, unsigned n) {
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_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
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const char *layout, *model, *variant, *options;
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int r;
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assert(bus);
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assert(args);
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if (n > 5) {
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log_error("Too many arguments.");
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return -EINVAL;
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}
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polkit_agent_open_if_enabled();
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layout = args[1];
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model = n > 2 ? args[2] : "";
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variant = n > 3 ? args[3] : "";
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options = n > 4 ? args[4] : "";
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r = sd_bus_call_method(
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bus,
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"org.freedesktop.locale1",
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"/org/freedesktop/locale1",
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"org.freedesktop.locale1",
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"SetX11Keyboard",
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&error,
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NULL,
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"ssssbb", layout, model, variant, options,
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arg_convert, arg_ask_password);
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if (r < 0)
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log_error("Failed to set keymap: %s", bus_error_message(&error, -r));
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return r;
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}
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static int list_x11_keymaps(sd_bus *bus, char **args, unsigned n) {
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_cleanup_fclose_ FILE *f = NULL;
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_cleanup_strv_free_ char **list = NULL;
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char line[LINE_MAX];
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enum {
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NONE,
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MODELS,
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LAYOUTS,
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VARIANTS,
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OPTIONS
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} state = NONE, look_for;
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int r;
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if (n > 2) {
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log_error("Too many arguments.");
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return -EINVAL;
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}
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f = fopen("/usr/share/X11/xkb/rules/base.lst", "re");
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if (!f) {
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log_error("Failed to open keyboard mapping list. %m");
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return -errno;
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}
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if (streq(args[0], "list-x11-keymap-models"))
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look_for = MODELS;
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else if (streq(args[0], "list-x11-keymap-layouts"))
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look_for = LAYOUTS;
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else if (streq(args[0], "list-x11-keymap-variants"))
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look_for = VARIANTS;
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else if (streq(args[0], "list-x11-keymap-options"))
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look_for = OPTIONS;
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else
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assert_not_reached("Wrong parameter");
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FOREACH_LINE(line, f, break) {
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char *l, *w;
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l = strstrip(line);
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if (isempty(l))
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continue;
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if (l[0] == '!') {
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if (startswith(l, "! model"))
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state = MODELS;
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else if (startswith(l, "! layout"))
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state = LAYOUTS;
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else if (startswith(l, "! variant"))
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state = VARIANTS;
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else if (startswith(l, "! option"))
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state = OPTIONS;
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else
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state = NONE;
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continue;
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}
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if (state != look_for)
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continue;
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w = l + strcspn(l, WHITESPACE);
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if (n > 1) {
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char *e;
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if (*w == 0)
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continue;
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*w = 0;
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w++;
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w += strspn(w, WHITESPACE);
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e = strchr(w, ':');
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if (!e)
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continue;
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*e = 0;
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if (!streq(w, args[1]))
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continue;
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} else
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*w = 0;
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r = strv_extend(&list, l);
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if (r < 0)
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return log_oom();
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}
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if (strv_isempty(list)) {
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log_error("Couldn't find any entries.");
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return -ENOENT;
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}
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strv_sort(list);
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strv_uniq(list);
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pager_open_if_enabled();
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strv_print(list);
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return 0;
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}
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static void help(void) {
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printf("%s [OPTIONS...] COMMAND ...\n\n"
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"Query or change system locale and keyboard settings.\n\n"
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" -h --help Show this help\n"
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" --version Show package version\n"
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" --no-pager Do not pipe output into a pager\n"
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" --no-ask-password Do not prompt for password\n"
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" -H --host=[USER@]HOST Operate on remote host\n"
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" -M --machine=CONTAINER Operate on local container\n"
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" --no-convert Don't convert keyboard mappings\n\n"
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"Commands:\n"
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" status Show current locale settings\n"
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" set-locale LOCALE... Set system locale\n"
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" list-locales Show known locales\n"
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" set-keymap MAP [MAP] Set virtual console keyboard mapping\n"
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" list-keymaps Show known virtual console keyboard mappings\n"
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" set-x11-keymap LAYOUT [MODEL] [VARIANT] [OPTIONS]\n"
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" Set X11 keyboard mapping\n"
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" list-x11-keymap-models Show known X11 keyboard mapping models\n"
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" list-x11-keymap-layouts Show known X11 keyboard mapping layouts\n"
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" list-x11-keymap-variants [LAYOUT]\n"
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" Show known X11 keyboard mapping variants\n"
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" list-x11-keymap-options Show known X11 keyboard mapping options\n"
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, program_invocation_short_name);
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}
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static int parse_argv(int argc, char *argv[]) {
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enum {
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ARG_VERSION = 0x100,
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ARG_NO_PAGER,
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ARG_NO_CONVERT,
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ARG_NO_ASK_PASSWORD
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};
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static const struct option options[] = {
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{ "help", no_argument, NULL, 'h' },
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{ "version", no_argument, NULL, ARG_VERSION },
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{ "no-pager", no_argument, NULL, ARG_NO_PAGER },
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{ "host", required_argument, NULL, 'H' },
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{ "machine", required_argument, NULL, 'M' },
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{ "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
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{ "no-convert", no_argument, NULL, ARG_NO_CONVERT },
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{}
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};
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int c;
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assert(argc >= 0);
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assert(argv);
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while ((c = getopt_long(argc, argv, "hH:M:", options, NULL)) >= 0)
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switch (c) {
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case 'h':
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help();
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return 0;
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case ARG_VERSION:
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puts(PACKAGE_STRING);
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puts(SYSTEMD_FEATURES);
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return 0;
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case ARG_NO_CONVERT:
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arg_convert = false;
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break;
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case ARG_NO_PAGER:
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arg_no_pager = true;
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break;
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case ARG_NO_ASK_PASSWORD:
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arg_ask_password = false;
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break;
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case 'H':
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arg_transport = BUS_TRANSPORT_REMOTE;
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arg_host = optarg;
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break;
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case 'M':
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arg_transport = BUS_TRANSPORT_CONTAINER;
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arg_host = optarg;
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break;
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case '?':
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return -EINVAL;
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default:
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assert_not_reached("Unhandled option");
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}
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return 1;
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}
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static int localectl_main(sd_bus *bus, int argc, char *argv[]) {
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static const struct {
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const char* verb;
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const enum {
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MORE,
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LESS,
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EQUAL
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} argc_cmp;
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const int argc;
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int (* const dispatch)(sd_bus *bus, char **args, unsigned n);
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} verbs[] = {
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{ "status", LESS, 1, show_status },
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{ "set-locale", MORE, 2, set_locale },
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{ "list-locales", EQUAL, 1, list_locales },
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|
{ "set-keymap", MORE, 2, set_vconsole_keymap },
|
|
{ "list-keymaps", EQUAL, 1, list_vconsole_keymaps },
|
|
{ "set-x11-keymap", MORE, 2, set_x11_keymap },
|
|
{ "list-x11-keymap-models", EQUAL, 1, list_x11_keymaps },
|
|
{ "list-x11-keymap-layouts", EQUAL, 1, list_x11_keymaps },
|
|
{ "list-x11-keymap-variants", LESS, 2, list_x11_keymaps },
|
|
{ "list-x11-keymap-options", EQUAL, 1, list_x11_keymaps },
|
|
};
|
|
|
|
int left;
|
|
unsigned i;
|
|
|
|
assert(argc >= 0);
|
|
assert(argv);
|
|
|
|
left = argc - optind;
|
|
|
|
if (left <= 0)
|
|
/* Special rule: no arguments means "status" */
|
|
i = 0;
|
|
else {
|
|
if (streq(argv[optind], "help")) {
|
|
help();
|
|
return 0;
|
|
}
|
|
|
|
for (i = 0; i < ELEMENTSOF(verbs); i++)
|
|
if (streq(argv[optind], verbs[i].verb))
|
|
break;
|
|
|
|
if (i >= ELEMENTSOF(verbs)) {
|
|
log_error("Unknown operation %s", argv[optind]);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
switch (verbs[i].argc_cmp) {
|
|
|
|
case EQUAL:
|
|
if (left != verbs[i].argc) {
|
|
log_error("Invalid number of arguments.");
|
|
return -EINVAL;
|
|
}
|
|
|
|
break;
|
|
|
|
case MORE:
|
|
if (left < verbs[i].argc) {
|
|
log_error("Too few arguments.");
|
|
return -EINVAL;
|
|
}
|
|
|
|
break;
|
|
|
|
case LESS:
|
|
if (left > verbs[i].argc) {
|
|
log_error("Too many arguments.");
|
|
return -EINVAL;
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
assert_not_reached("Unknown comparison operator.");
|
|
}
|
|
|
|
return verbs[i].dispatch(bus, argv + optind, left);
|
|
}
|
|
|
|
int main(int argc, char*argv[]) {
|
|
_cleanup_bus_close_unref_ sd_bus *bus = NULL;
|
|
int r;
|
|
|
|
setlocale(LC_ALL, "");
|
|
log_parse_environment();
|
|
log_open();
|
|
|
|
r = parse_argv(argc, argv);
|
|
if (r <= 0)
|
|
goto finish;
|
|
|
|
r = bus_open_transport(arg_transport, arg_host, false, &bus);
|
|
if (r < 0) {
|
|
log_error("Failed to create bus connection: %s", strerror(-r));
|
|
goto finish;
|
|
}
|
|
|
|
r = localectl_main(bus, argc, argv);
|
|
|
|
finish:
|
|
pager_close();
|
|
|
|
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
|
|
}
|