-/***
- This file is part of systemd.
-
- Copyright 2012 Lennart Poettering
-
- systemd is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 2.1 of the License, or
- (at your option) any later version.
-
- systemd is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public License
- along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
+/* SPDX-License-Identifier: LGPL-2.1+ */
#include <getopt.h>
#include <locale.h>
#include "bus-util.h"
#include "hostname-util.h"
#include "spawn-polkit-agent.h"
+#include "terminal-util.h"
#include "util.h"
+#include "verbs.h"
static bool arg_ask_password = true;
static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
static bool arg_pretty = false;
static bool arg_static = false;
-static void polkit_agent_open_if_enabled(void) {
-
- /* Open the polkit agent as a child process if necessary */
- if (!arg_ask_password)
- return;
-
- if (arg_transport != BUS_TRANSPORT_LOCAL)
- return;
-
- polkit_agent_open();
-}
-
typedef struct StatusInfo {
- char *hostname;
- char *static_hostname;
- char *pretty_hostname;
- char *icon_name;
- char *chassis;
- char *deployment;
- char *location;
- char *kernel_name;
- char *kernel_release;
- char *os_pretty_name;
- char *os_cpe_name;
- char *virtualization;
- char *architecture;
+ const char *hostname;
+ const char *static_hostname;
+ const char *pretty_hostname;
+ const char *icon_name;
+ const char *chassis;
+ const char *deployment;
+ const char *location;
+ const char *kernel_name;
+ const char *kernel_release;
+ const char *os_pretty_name;
+ const char *os_cpe_name;
+ const char *virtualization;
+ const char *architecture;
+ const char *home_url;
} StatusInfo;
static void print_status_info(StatusInfo *i) {
if (!isempty(i->virtualization))
printf(" Virtualization: %s\n", i->virtualization);
- if (!isempty(i->os_pretty_name))
- printf(" Operating System: %s\n", i->os_pretty_name);
+ if (!isempty(i->os_pretty_name)) {
+ _cleanup_free_ char *formatted = NULL;
+ const char *t = i->os_pretty_name;
+
+ if (i->home_url) {
+ if (terminal_urlify(i->home_url, i->os_pretty_name, &formatted) >= 0)
+ t = formatted;
+ }
+
+ printf(" Operating System: %s\n", t);
+ }
if (!isempty(i->os_cpe_name))
printf(" CPE OS Name: %s\n", i->os_cpe_name);
"org.freedesktop.hostname1",
attr,
&error, &reply, "s");
- if (r < 0) {
- log_error("Could not get property: %s", bus_error_message(&error, -r));
- return r;
- }
+ if (r < 0)
+ return log_error_errno(r, "Could not get property: %s", bus_error_message(&error, r));
r = sd_bus_message_read(reply, "s", &s);
if (r < 0)
return 0;
}
-static int show_all_names(sd_bus *bus) {
+static int show_all_names(sd_bus *bus, sd_bus_error *error) {
StatusInfo info = {};
static const struct bus_properties_map hostname_map[] = {
{ "KernelRelease", "s", NULL, offsetof(StatusInfo, kernel_release) },
{ "OperatingSystemPrettyName", "s", NULL, offsetof(StatusInfo, os_pretty_name) },
{ "OperatingSystemCPEName", "s", NULL, offsetof(StatusInfo, os_cpe_name) },
+ { "HomeURL", "s", NULL, offsetof(StatusInfo, home_url) },
{}
};
{}
};
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *host_message = NULL, *manager_message = NULL;
int r;
r = bus_map_all_properties(bus,
"org.freedesktop.hostname1",
"/org/freedesktop/hostname1",
hostname_map,
+ 0,
+ error,
+ &host_message,
&info);
if (r < 0)
- goto fail;
+ return r;
- bus_map_all_properties(bus,
- "org.freedesktop.systemd1",
- "/org/freedesktop/systemd1",
- manager_map,
- &info);
+ r = bus_map_all_properties(bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ manager_map,
+ 0,
+ error,
+ &manager_message,
+ &info);
print_status_info(&info);
-fail:
- free(info.hostname);
- free(info.static_hostname);
- free(info.pretty_hostname);
- free(info.icon_name);
- free(info.chassis);
- free(info.deployment);
- free(info.location);
- free(info.kernel_name);
- free(info.kernel_release);
- free(info.os_pretty_name);
- free(info.os_cpe_name);
- free(info.virtualization);
- free(info.architecture);
-
return r;
}
-static int show_status(sd_bus *bus, char **args, unsigned n) {
- assert(args);
+static int show_status(int argc, char **argv, void *userdata) {
+ sd_bus *bus = userdata;
+ int r;
if (arg_pretty || arg_static || arg_transient) {
const char *attr;
arg_static ? "StaticHostname" : "Hostname";
return show_one_name(bus, attr);
- } else
- return show_all_names(bus);
+ } else {
+ _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+
+ r = show_all_names(bus, &error);
+ if (r < 0)
+ return log_error_errno(r, "Failed to query system properties: %s", bus_error_message(&error, r));
+
+ return 0;
+ }
}
static int set_simple_string(sd_bus *bus, const char *method, const char *value) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
int r = 0;
- polkit_agent_open_if_enabled();
+ polkit_agent_open_if_enabled(arg_transport, arg_ask_password);
r = sd_bus_call_method(
bus,
return r;
}
-static int set_hostname(sd_bus *bus, char **args, unsigned n) {
+static int set_hostname(int argc, char **argv, void *userdata) {
_cleanup_free_ char *h = NULL;
- const char *hostname = args[1];
+ const char *hostname = argv[1];
+ sd_bus *bus = userdata;
int r;
- assert(args);
- assert(n == 2);
-
if (!arg_pretty && !arg_static && !arg_transient)
arg_pretty = arg_static = arg_transient = true;
/* Now that we set the pretty hostname, let's clean up the parameter and use that as static
* hostname. If the hostname was already valid as static hostname, this will only chop off the trailing
* dot if there is one. If it was not valid, then it will be made fully valid by truncating, dropping
- * multiple dots, and and dropping weird chars. Note that we clean the name up only if we also are
+ * multiple dots, and dropping weird chars. Note that we clean the name up only if we also are
* supposed to set the pretty name. If the pretty name is not being set we assume the user knows what
* he does and pass the name as-is. */
h = strdup(hostname);
return 0;
}
-static int set_icon_name(sd_bus *bus, char **args, unsigned n) {
- assert(args);
- assert(n == 2);
-
- return set_simple_string(bus, "SetIconName", args[1]);
+static int set_icon_name(int argc, char **argv, void *userdata) {
+ return set_simple_string(userdata, "SetIconName", argv[1]);
}
-static int set_chassis(sd_bus *bus, char **args, unsigned n) {
- assert(args);
- assert(n == 2);
-
- return set_simple_string(bus, "SetChassis", args[1]);
+static int set_chassis(int argc, char **argv, void *userdata) {
+ return set_simple_string(userdata, "SetChassis", argv[1]);
}
-static int set_deployment(sd_bus *bus, char **args, unsigned n) {
- assert(args);
- assert(n == 2);
-
- return set_simple_string(bus, "SetDeployment", args[1]);
+static int set_deployment(int argc, char **argv, void *userdata) {
+ return set_simple_string(userdata, "SetDeployment", argv[1]);
}
-static int set_location(sd_bus *bus, char **args, unsigned n) {
- assert(args);
- assert(n == 2);
-
- return set_simple_string(bus, "SetLocation", args[1]);
+static int set_location(int argc, char **argv, void *userdata) {
+ return set_simple_string(userdata, "SetLocation", argv[1]);
}
-static void help(void) {
+static int help(void) {
printf("%s [OPTIONS...] COMMAND ...\n\n"
"Query or change system hostname.\n\n"
" -h --help Show this help\n"
" set-deployment NAME Set deployment environment for host\n"
" set-location NAME Set location for host\n"
, program_invocation_short_name);
+
+ return 0;
+}
+
+static int verb_help(int argc, char **argv, void *userdata) {
+ return help();
}
static int parse_argv(int argc, char *argv[]) {
switch (c) {
case 'h':
- help();
- return 0;
+ return help();
case ARG_VERSION:
return version();
static int hostnamectl_main(sd_bus *bus, int argc, char *argv[]) {
- static const struct {
- const char* verb;
- const enum {
- MORE,
- LESS,
- EQUAL
- } argc_cmp;
- const int argc;
- int (* const dispatch)(sd_bus *bus, char **args, unsigned n);
- } verbs[] = {
- { "status", LESS, 1, show_status },
- { "set-hostname", EQUAL, 2, set_hostname },
- { "set-icon-name", EQUAL, 2, set_icon_name },
- { "set-chassis", EQUAL, 2, set_chassis },
- { "set-deployment", EQUAL, 2, set_deployment },
- { "set-location", EQUAL, 2, set_location },
+ static const Verb verbs[] = {
+ { "status", VERB_ANY, 1, VERB_DEFAULT, show_status },
+ { "set-hostname", 2, 2, 0, set_hostname },
+ { "set-icon-name", 2, 2, 0, set_icon_name },
+ { "set-chassis", 2, 2, 0, set_chassis },
+ { "set-deployment", 2, 2, 0, set_deployment },
+ { "set-location", 2, 2, 0, set_location },
+ { "help", VERB_ANY, VERB_ANY, 0, verb_help }, /* Not documented, but supported since it is created. */
+ {}
};
- 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);
+ return dispatch_verb(argc, argv, verbs, bus);
}
int main(int argc, char *argv[]) {
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