2012-10-17 21:23:30 +02:00
|
|
|
/***
|
|
|
|
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/>.
|
|
|
|
***/
|
|
|
|
|
|
|
|
#include <getopt.h>
|
2012-11-12 20:16:07 +01:00
|
|
|
#include <locale.h>
|
2015-09-23 03:01:06 +02:00
|
|
|
#include <stdbool.h>
|
|
|
|
#include <stdlib.h>
|
2012-10-17 21:23:30 +02:00
|
|
|
#include <string.h>
|
|
|
|
|
2013-10-30 06:55:31 +01:00
|
|
|
#include "sd-bus.h"
|
2015-05-18 17:10:07 +02:00
|
|
|
#include "sd-id128.h"
|
2015-09-23 03:01:06 +02:00
|
|
|
|
2015-10-27 03:01:06 +01:00
|
|
|
#include "alloc-util.h"
|
2015-09-23 03:01:06 +02:00
|
|
|
#include "architecture.h"
|
2013-10-30 06:55:31 +01:00
|
|
|
#include "bus-error.h"
|
2015-09-23 03:01:06 +02:00
|
|
|
#include "bus-util.h"
|
|
|
|
#include "hostname-util.h"
|
2012-10-17 21:23:30 +02:00
|
|
|
#include "spawn-polkit-agent.h"
|
2015-09-23 03:01:06 +02:00
|
|
|
#include "util.h"
|
2012-10-17 21:23:30 +02:00
|
|
|
|
|
|
|
static bool arg_ask_password = true;
|
2013-10-30 06:55:31 +01:00
|
|
|
static BusTransport arg_transport = BUS_TRANSPORT_LOCAL;
|
2013-06-09 22:54:39 +02:00
|
|
|
static char *arg_host = NULL;
|
2013-08-15 00:55:11 +02:00
|
|
|
static bool arg_transient = false;
|
|
|
|
static bool arg_pretty = false;
|
|
|
|
static bool arg_static = false;
|
2012-10-17 21:23:30 +02:00
|
|
|
|
2013-11-07 21:06:44 +01:00
|
|
|
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();
|
|
|
|
}
|
|
|
|
|
2012-10-17 21:23:30 +02:00
|
|
|
typedef struct StatusInfo {
|
2013-10-30 06:55:31 +01:00
|
|
|
char *hostname;
|
|
|
|
char *static_hostname;
|
|
|
|
char *pretty_hostname;
|
|
|
|
char *icon_name;
|
|
|
|
char *chassis;
|
2014-07-08 23:26:05 +02:00
|
|
|
char *deployment;
|
2014-08-15 17:06:10 +02:00
|
|
|
char *location;
|
2014-04-23 23:41:13 +02:00
|
|
|
char *kernel_name;
|
|
|
|
char *kernel_release;
|
2014-03-11 14:57:16 +01:00
|
|
|
char *os_pretty_name;
|
|
|
|
char *os_cpe_name;
|
2014-02-25 01:03:25 +01:00
|
|
|
char *virtualization;
|
|
|
|
char *architecture;
|
2012-10-17 21:23:30 +02:00
|
|
|
} StatusInfo;
|
|
|
|
|
|
|
|
static void print_status_info(StatusInfo *i) {
|
2014-02-19 17:47:11 +01:00
|
|
|
sd_id128_t mid = {}, bid = {};
|
2012-10-17 21:23:30 +02:00
|
|
|
int r;
|
|
|
|
|
|
|
|
assert(i);
|
|
|
|
|
2014-02-25 01:03:25 +01:00
|
|
|
printf(" Static hostname: %s\n", strna(i->static_hostname));
|
2012-10-17 21:23:30 +02:00
|
|
|
|
2013-05-07 20:56:05 +02:00
|
|
|
if (!isempty(i->pretty_hostname) &&
|
|
|
|
!streq_ptr(i->pretty_hostname, i->static_hostname))
|
2014-02-25 01:03:25 +01:00
|
|
|
printf(" Pretty hostname: %s\n", i->pretty_hostname);
|
2013-05-07 20:56:05 +02:00
|
|
|
|
|
|
|
if (!isempty(i->hostname) &&
|
|
|
|
!streq_ptr(i->hostname, i->static_hostname))
|
2014-02-25 01:03:25 +01:00
|
|
|
printf("Transient hostname: %s\n", i->hostname);
|
2012-10-17 21:23:30 +02:00
|
|
|
|
2014-08-15 17:06:10 +02:00
|
|
|
if (!isempty(i->icon_name))
|
|
|
|
printf(" Icon name: %s\n",
|
|
|
|
strna(i->icon_name));
|
|
|
|
|
|
|
|
if (!isempty(i->chassis))
|
|
|
|
printf(" Chassis: %s\n",
|
|
|
|
strna(i->chassis));
|
|
|
|
|
|
|
|
if (!isempty(i->deployment))
|
|
|
|
printf(" Deployment: %s\n", i->deployment);
|
|
|
|
|
|
|
|
if (!isempty(i->location))
|
|
|
|
printf(" Location: %s\n", i->location);
|
2012-10-17 21:23:30 +02:00
|
|
|
|
|
|
|
r = sd_id128_get_machine(&mid);
|
|
|
|
if (r >= 0)
|
|
|
|
printf(" Machine ID: " SD_ID128_FORMAT_STR "\n", SD_ID128_FORMAT_VAL(mid));
|
|
|
|
|
|
|
|
r = sd_id128_get_boot(&bid);
|
|
|
|
if (r >= 0)
|
|
|
|
printf(" Boot ID: " SD_ID128_FORMAT_STR "\n", SD_ID128_FORMAT_VAL(bid));
|
|
|
|
|
2014-02-25 01:03:25 +01:00
|
|
|
if (!isempty(i->virtualization))
|
|
|
|
printf(" Virtualization: %s\n", i->virtualization);
|
2012-10-21 03:35:33 +02:00
|
|
|
|
2014-03-11 14:57:16 +01:00
|
|
|
if (!isempty(i->os_pretty_name))
|
|
|
|
printf(" Operating System: %s\n", i->os_pretty_name);
|
2012-10-21 03:35:33 +02:00
|
|
|
|
2014-03-11 14:57:16 +01:00
|
|
|
if (!isempty(i->os_cpe_name))
|
|
|
|
printf(" CPE OS Name: %s\n", i->os_cpe_name);
|
2012-10-21 03:35:33 +02:00
|
|
|
|
2014-04-23 23:41:13 +02:00
|
|
|
if (!isempty(i->kernel_name) && !isempty(i->kernel_release))
|
|
|
|
printf(" Kernel: %s %s\n", i->kernel_name, i->kernel_release);
|
2014-02-25 01:03:25 +01:00
|
|
|
|
|
|
|
if (!isempty(i->architecture))
|
|
|
|
printf(" Architecture: %s\n", i->architecture);
|
2012-10-21 03:35:33 +02:00
|
|
|
|
2012-10-17 21:23:30 +02:00
|
|
|
}
|
|
|
|
|
2013-10-30 06:55:31 +01:00
|
|
|
static int show_one_name(sd_bus *bus, const char* attr) {
|
tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy
GLIB has recently started to officially support the gcc cleanup
attribute in its public API, hence let's do the same for our APIs.
With this patch we'll define an xyz_unrefp() call for each public
xyz_unref() call, to make it easy to use inside a
__attribute__((cleanup())) expression. Then, all code is ported over to
make use of this.
The new calls are also documented in the man pages, with examples how to
use them (well, I only added docs where the _unref() call itself already
had docs, and the examples, only cover sd_bus_unrefp() and
sd_event_unrefp()).
This also renames sd_lldp_free() to sd_lldp_unref(), since that's how we
tend to call our destructors these days.
Note that this defines no public macro that wraps gcc's attribute and
makes it easier to use. While I think it's our duty in the library to
make our stuff easy to use, I figure it's not our duty to make gcc's own
features easy to use on its own. Most likely, client code which wants to
make use of this should define its own:
#define _cleanup_(function) __attribute__((cleanup(function)))
Or similar, to make the gcc feature easier to use.
Making this logic public has the benefit that we can remove three header
files whose only purpose was to define these functions internally.
See #2008.
2015-11-27 19:13:45 +01:00
|
|
|
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
|
|
|
|
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
|
2013-10-30 06:55:31 +01:00
|
|
|
const char *s;
|
2013-08-15 00:55:11 +02:00
|
|
|
int r;
|
|
|
|
|
2013-10-30 06:55:31 +01:00
|
|
|
r = sd_bus_get_property(
|
2013-08-15 00:55:11 +02:00
|
|
|
bus,
|
|
|
|
"org.freedesktop.hostname1",
|
|
|
|
"/org/freedesktop/hostname1",
|
2013-10-30 06:55:31 +01:00
|
|
|
"org.freedesktop.hostname1",
|
|
|
|
attr,
|
|
|
|
&error, &reply, "s");
|
|
|
|
if (r < 0) {
|
|
|
|
log_error("Could not get property: %s", bus_error_message(&error, -r));
|
2013-08-15 00:55:11 +02:00
|
|
|
return r;
|
|
|
|
}
|
|
|
|
|
2013-10-30 06:55:31 +01:00
|
|
|
r = sd_bus_message_read(reply, "s", &s);
|
|
|
|
if (r < 0)
|
2013-11-07 21:26:31 +01:00
|
|
|
return bus_log_parse_error(r);
|
2013-08-15 00:55:11 +02:00
|
|
|
|
|
|
|
printf("%s\n", s);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-10-30 06:55:31 +01:00
|
|
|
static int show_all_names(sd_bus *bus) {
|
2013-03-25 00:59:00 +01:00
|
|
|
StatusInfo info = {};
|
2014-02-25 01:03:25 +01:00
|
|
|
|
|
|
|
static const struct bus_properties_map hostname_map[] = {
|
2014-08-15 17:06:10 +02:00
|
|
|
{ "Hostname", "s", NULL, offsetof(StatusInfo, hostname) },
|
|
|
|
{ "StaticHostname", "s", NULL, offsetof(StatusInfo, static_hostname) },
|
|
|
|
{ "PrettyHostname", "s", NULL, offsetof(StatusInfo, pretty_hostname) },
|
|
|
|
{ "IconName", "s", NULL, offsetof(StatusInfo, icon_name) },
|
|
|
|
{ "Chassis", "s", NULL, offsetof(StatusInfo, chassis) },
|
|
|
|
{ "Deployment", "s", NULL, offsetof(StatusInfo, deployment) },
|
|
|
|
{ "Location", "s", NULL, offsetof(StatusInfo, location) },
|
|
|
|
{ "KernelName", "s", NULL, offsetof(StatusInfo, kernel_name) },
|
|
|
|
{ "KernelRelease", "s", NULL, offsetof(StatusInfo, kernel_release) },
|
|
|
|
{ "OperatingSystemPrettyName", "s", NULL, offsetof(StatusInfo, os_pretty_name) },
|
|
|
|
{ "OperatingSystemCPEName", "s", NULL, offsetof(StatusInfo, os_cpe_name) },
|
2013-10-30 06:55:31 +01:00
|
|
|
{}
|
|
|
|
};
|
2014-02-25 01:03:25 +01:00
|
|
|
|
|
|
|
static const struct bus_properties_map manager_map[] = {
|
2014-08-15 17:06:10 +02:00
|
|
|
{ "Virtualization", "s", NULL, offsetof(StatusInfo, virtualization) },
|
|
|
|
{ "Architecture", "s", NULL, offsetof(StatusInfo, architecture) },
|
2014-02-25 01:03:25 +01:00
|
|
|
{}
|
|
|
|
};
|
|
|
|
|
2013-10-30 06:55:31 +01:00
|
|
|
int r;
|
2012-10-17 21:23:30 +02:00
|
|
|
|
2013-10-30 06:55:31 +01:00
|
|
|
r = bus_map_all_properties(bus,
|
|
|
|
"org.freedesktop.hostname1",
|
|
|
|
"/org/freedesktop/hostname1",
|
2014-02-25 01:03:25 +01:00
|
|
|
hostname_map,
|
2013-11-05 02:57:49 +01:00
|
|
|
&info);
|
2012-10-17 21:23:30 +02:00
|
|
|
if (r < 0)
|
2013-10-30 06:55:31 +01:00
|
|
|
goto fail;
|
2012-10-17 21:23:30 +02:00
|
|
|
|
2014-02-25 01:03:25 +01:00
|
|
|
bus_map_all_properties(bus,
|
|
|
|
"org.freedesktop.systemd1",
|
|
|
|
"/org/freedesktop/systemd1",
|
|
|
|
manager_map,
|
|
|
|
&info);
|
|
|
|
|
2012-10-17 21:23:30 +02:00
|
|
|
print_status_info(&info);
|
2013-10-30 06:55:31 +01:00
|
|
|
|
|
|
|
fail:
|
|
|
|
free(info.hostname);
|
|
|
|
free(info.static_hostname);
|
|
|
|
free(info.pretty_hostname);
|
|
|
|
free(info.icon_name);
|
|
|
|
free(info.chassis);
|
2014-07-08 23:26:05 +02:00
|
|
|
free(info.deployment);
|
2014-08-15 17:06:10 +02:00
|
|
|
free(info.location);
|
2014-04-23 23:41:13 +02:00
|
|
|
free(info.kernel_name);
|
|
|
|
free(info.kernel_release);
|
2014-03-11 14:57:16 +01:00
|
|
|
free(info.os_pretty_name);
|
|
|
|
free(info.os_cpe_name);
|
2014-02-25 01:03:25 +01:00
|
|
|
free(info.virtualization);
|
|
|
|
free(info.architecture);
|
|
|
|
|
|
|
|
return r;
|
2012-10-17 21:23:30 +02:00
|
|
|
}
|
|
|
|
|
2013-10-30 06:55:31 +01:00
|
|
|
static int show_status(sd_bus *bus, char **args, unsigned n) {
|
2013-08-15 00:55:11 +02:00
|
|
|
assert(args);
|
|
|
|
|
|
|
|
if (arg_pretty || arg_static || arg_transient) {
|
|
|
|
const char *attr;
|
|
|
|
|
|
|
|
if (!!arg_static + !!arg_pretty + !!arg_transient > 1) {
|
|
|
|
log_error("Cannot query more than one name type at a time");
|
|
|
|
return -EINVAL;
|
|
|
|
}
|
|
|
|
|
|
|
|
attr = arg_pretty ? "PrettyHostname" :
|
|
|
|
arg_static ? "StaticHostname" : "Hostname";
|
|
|
|
|
|
|
|
return show_one_name(bus, attr);
|
|
|
|
} else
|
|
|
|
return show_all_names(bus);
|
|
|
|
}
|
|
|
|
|
2013-10-30 06:55:31 +01:00
|
|
|
static int set_simple_string(sd_bus *bus, const char *method, const char *value) {
|
tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy
GLIB has recently started to officially support the gcc cleanup
attribute in its public API, hence let's do the same for our APIs.
With this patch we'll define an xyz_unrefp() call for each public
xyz_unref() call, to make it easy to use inside a
__attribute__((cleanup())) expression. Then, all code is ported over to
make use of this.
The new calls are also documented in the man pages, with examples how to
use them (well, I only added docs where the _unref() call itself already
had docs, and the examples, only cover sd_bus_unrefp() and
sd_event_unrefp()).
This also renames sd_lldp_free() to sd_lldp_unref(), since that's how we
tend to call our destructors these days.
Note that this defines no public macro that wraps gcc's attribute and
makes it easier to use. While I think it's our duty in the library to
make our stuff easy to use, I figure it's not our duty to make gcc's own
features easy to use on its own. Most likely, client code which wants to
make use of this should define its own:
#define _cleanup_(function) __attribute__((cleanup(function)))
Or similar, to make the gcc feature easier to use.
Making this logic public has the benefit that we can remove three header
files whose only purpose was to define these functions internally.
See #2008.
2015-11-27 19:13:45 +01:00
|
|
|
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
|
2013-10-30 06:55:31 +01:00
|
|
|
int r = 0;
|
|
|
|
|
2013-11-07 21:06:44 +01:00
|
|
|
polkit_agent_open_if_enabled();
|
2013-10-30 06:55:31 +01:00
|
|
|
|
|
|
|
r = sd_bus_call_method(
|
|
|
|
bus,
|
|
|
|
"org.freedesktop.hostname1",
|
|
|
|
"/org/freedesktop/hostname1",
|
|
|
|
"org.freedesktop.hostname1",
|
|
|
|
method,
|
|
|
|
&error, NULL,
|
|
|
|
"sb", value, arg_ask_password);
|
|
|
|
if (r < 0)
|
|
|
|
log_error("Could not set property: %s", bus_error_message(&error, -r));
|
|
|
|
return r;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int set_hostname(sd_bus *bus, char **args, unsigned n) {
|
2012-10-17 21:23:30 +02:00
|
|
|
_cleanup_free_ char *h = NULL;
|
2015-07-28 04:30:06 +02:00
|
|
|
char *hostname = args[1];
|
2012-10-17 21:23:30 +02:00
|
|
|
int r;
|
|
|
|
|
|
|
|
assert(args);
|
|
|
|
assert(n == 2);
|
|
|
|
|
2013-08-15 00:55:11 +02:00
|
|
|
if (!arg_pretty && !arg_static && !arg_transient)
|
|
|
|
arg_pretty = arg_static = arg_transient = true;
|
|
|
|
|
|
|
|
if (arg_pretty) {
|
2013-04-03 22:06:16 +02:00
|
|
|
const char *p;
|
|
|
|
|
|
|
|
/* If the passed hostname is already valid, then
|
|
|
|
* assume the user doesn't know anything about pretty
|
|
|
|
* hostnames, so let's unset the pretty hostname, and
|
|
|
|
* just set the passed hostname as static/dynamic
|
|
|
|
* hostname. */
|
|
|
|
|
2015-07-28 04:30:06 +02:00
|
|
|
if (arg_static && hostname_is_valid(hostname, true)) {
|
2013-04-03 22:06:16 +02:00
|
|
|
p = "";
|
2015-07-28 04:30:06 +02:00
|
|
|
/* maybe get rid of trailing dot */
|
2015-07-28 04:36:36 +02:00
|
|
|
hostname = hostname_cleanup(hostname);
|
2015-07-28 04:30:06 +02:00
|
|
|
} else {
|
|
|
|
p = h = strdup(hostname);
|
|
|
|
if (!p)
|
|
|
|
return log_oom();
|
|
|
|
|
2015-07-28 04:36:36 +02:00
|
|
|
hostname_cleanup(hostname);
|
2013-04-03 22:06:16 +02:00
|
|
|
}
|
|
|
|
|
2013-10-30 06:55:31 +01:00
|
|
|
r = set_simple_string(bus, "SetPrettyHostname", p);
|
2012-10-17 21:23:30 +02:00
|
|
|
if (r < 0)
|
|
|
|
return r;
|
|
|
|
}
|
|
|
|
|
2013-08-15 00:55:11 +02:00
|
|
|
if (arg_static) {
|
2013-10-30 06:55:31 +01:00
|
|
|
r = set_simple_string(bus, "SetStaticHostname", hostname);
|
2012-10-17 21:23:30 +02:00
|
|
|
if (r < 0)
|
|
|
|
return r;
|
|
|
|
}
|
|
|
|
|
2013-08-15 00:55:11 +02:00
|
|
|
if (arg_transient) {
|
2013-10-30 06:55:31 +01:00
|
|
|
r = set_simple_string(bus, "SetHostname", hostname);
|
2012-10-17 21:23:30 +02:00
|
|
|
if (r < 0)
|
|
|
|
return r;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2013-10-30 06:55:31 +01:00
|
|
|
static int set_icon_name(sd_bus *bus, char **args, unsigned n) {
|
2012-10-17 21:23:30 +02:00
|
|
|
assert(args);
|
|
|
|
assert(n == 2);
|
|
|
|
|
2013-10-30 06:55:31 +01:00
|
|
|
return set_simple_string(bus, "SetIconName", args[1]);
|
2012-10-17 21:23:30 +02:00
|
|
|
}
|
|
|
|
|
2013-10-30 06:55:31 +01:00
|
|
|
static int set_chassis(sd_bus *bus, char **args, unsigned n) {
|
2012-12-24 19:03:59 +01:00
|
|
|
assert(args);
|
|
|
|
assert(n == 2);
|
|
|
|
|
2013-12-04 12:59:40 +01:00
|
|
|
return set_simple_string(bus, "SetChassis", args[1]);
|
2012-12-24 19:03:59 +01:00
|
|
|
}
|
|
|
|
|
2014-07-08 23:26:05 +02:00
|
|
|
static int set_deployment(sd_bus *bus, char **args, unsigned n) {
|
|
|
|
assert(args);
|
|
|
|
assert(n == 2);
|
|
|
|
|
|
|
|
return set_simple_string(bus, "SetDeployment", args[1]);
|
|
|
|
}
|
|
|
|
|
2014-08-15 17:06:10 +02:00
|
|
|
static int set_location(sd_bus *bus, char **args, unsigned n) {
|
|
|
|
assert(args);
|
|
|
|
assert(n == 2);
|
|
|
|
|
|
|
|
return set_simple_string(bus, "SetLocation", args[1]);
|
|
|
|
}
|
|
|
|
|
2014-08-02 17:12:21 +02:00
|
|
|
static void help(void) {
|
2012-10-19 04:51:53 +02:00
|
|
|
printf("%s [OPTIONS...] COMMAND ...\n\n"
|
|
|
|
"Query or change system hostname.\n\n"
|
2012-10-17 21:23:30 +02:00
|
|
|
" -h --help Show this help\n"
|
|
|
|
" --version Show package version\n"
|
2012-10-19 04:51:53 +02:00
|
|
|
" --no-ask-password Do not prompt for password\n"
|
2013-10-30 06:55:31 +01:00
|
|
|
" -H --host=[USER@]HOST Operate on remote host\n"
|
2013-11-07 21:31:13 +01:00
|
|
|
" -M --machine=CONTAINER Operate on local container\n"
|
|
|
|
" --transient Only set transient hostname\n"
|
|
|
|
" --static Only set static hostname\n"
|
|
|
|
" --pretty Only set pretty hostname\n\n"
|
2012-10-17 21:23:30 +02:00
|
|
|
"Commands:\n"
|
2012-10-19 04:51:53 +02:00
|
|
|
" status Show current hostname settings\n"
|
|
|
|
" set-hostname NAME Set system hostname\n"
|
2012-12-24 19:03:59 +01:00
|
|
|
" set-icon-name NAME Set icon name for host\n"
|
2014-07-08 23:26:05 +02:00
|
|
|
" set-chassis NAME Set chassis type for host\n"
|
2014-08-02 17:12:21 +02:00
|
|
|
" set-deployment NAME Set deployment environment for host\n"
|
2014-08-15 17:06:10 +02:00
|
|
|
" set-location NAME Set location for host\n"
|
2014-08-02 17:12:21 +02:00
|
|
|
, program_invocation_short_name);
|
2012-10-17 21:23:30 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
static int parse_argv(int argc, char *argv[]) {
|
|
|
|
|
|
|
|
enum {
|
|
|
|
ARG_VERSION = 0x100,
|
|
|
|
ARG_NO_ASK_PASSWORD,
|
2013-08-15 00:55:11 +02:00
|
|
|
ARG_TRANSIENT,
|
|
|
|
ARG_STATIC,
|
|
|
|
ARG_PRETTY
|
2012-10-17 21:23:30 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
static const struct option options[] = {
|
|
|
|
{ "help", no_argument, NULL, 'h' },
|
|
|
|
{ "version", no_argument, NULL, ARG_VERSION },
|
2013-11-06 18:28:39 +01:00
|
|
|
{ "transient", no_argument, NULL, ARG_TRANSIENT },
|
|
|
|
{ "static", no_argument, NULL, ARG_STATIC },
|
|
|
|
{ "pretty", no_argument, NULL, ARG_PRETTY },
|
2012-10-17 21:23:30 +02:00
|
|
|
{ "host", required_argument, NULL, 'H' },
|
2013-10-30 06:55:31 +01:00
|
|
|
{ "machine", required_argument, NULL, 'M' },
|
2012-10-17 21:23:30 +02:00
|
|
|
{ "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD },
|
2013-11-06 18:28:39 +01:00
|
|
|
{}
|
2012-10-17 21:23:30 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
int c;
|
|
|
|
|
|
|
|
assert(argc >= 0);
|
|
|
|
assert(argv);
|
|
|
|
|
2014-08-02 17:12:21 +02:00
|
|
|
while ((c = getopt_long(argc, argv, "hH:M:", options, NULL)) >= 0)
|
2012-10-17 21:23:30 +02:00
|
|
|
|
|
|
|
switch (c) {
|
|
|
|
|
|
|
|
case 'h':
|
2014-08-02 17:12:21 +02:00
|
|
|
help();
|
|
|
|
return 0;
|
2012-10-17 21:23:30 +02:00
|
|
|
|
|
|
|
case ARG_VERSION:
|
2015-09-23 03:01:06 +02:00
|
|
|
return version();
|
2012-10-17 21:23:30 +02:00
|
|
|
|
2013-10-30 06:55:31 +01:00
|
|
|
case 'H':
|
|
|
|
arg_transport = BUS_TRANSPORT_REMOTE;
|
|
|
|
arg_host = optarg;
|
2012-10-17 21:23:30 +02:00
|
|
|
break;
|
|
|
|
|
2013-10-30 06:55:31 +01:00
|
|
|
case 'M':
|
2014-12-23 23:38:13 +01:00
|
|
|
arg_transport = BUS_TRANSPORT_MACHINE;
|
2013-10-30 06:55:31 +01:00
|
|
|
arg_host = optarg;
|
2012-10-17 21:23:30 +02:00
|
|
|
break;
|
|
|
|
|
2013-08-15 00:55:11 +02:00
|
|
|
case ARG_TRANSIENT:
|
|
|
|
arg_transient = true;
|
2012-10-17 21:23:30 +02:00
|
|
|
break;
|
|
|
|
|
2013-08-15 00:55:11 +02:00
|
|
|
case ARG_PRETTY:
|
|
|
|
arg_pretty = true;
|
2012-10-17 21:23:30 +02:00
|
|
|
break;
|
|
|
|
|
2013-08-15 00:55:11 +02:00
|
|
|
case ARG_STATIC:
|
|
|
|
arg_static = true;
|
2012-10-17 21:23:30 +02:00
|
|
|
break;
|
|
|
|
|
2012-11-15 22:47:04 +01:00
|
|
|
case ARG_NO_ASK_PASSWORD:
|
|
|
|
arg_ask_password = false;
|
|
|
|
break;
|
|
|
|
|
2012-10-17 21:23:30 +02:00
|
|
|
case '?':
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
default:
|
2013-11-06 18:28:39 +01:00
|
|
|
assert_not_reached("Unhandled option");
|
2012-10-17 21:23:30 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
2013-10-30 06:55:31 +01:00
|
|
|
static int hostnamectl_main(sd_bus *bus, int argc, char *argv[]) {
|
2012-10-17 21:23:30 +02:00
|
|
|
|
|
|
|
static const struct {
|
|
|
|
const char* verb;
|
|
|
|
const enum {
|
|
|
|
MORE,
|
|
|
|
LESS,
|
|
|
|
EQUAL
|
|
|
|
} argc_cmp;
|
|
|
|
const int argc;
|
2013-10-30 06:55:31 +01:00
|
|
|
int (* const dispatch)(sd_bus *bus, char **args, unsigned n);
|
2012-10-17 21:23:30 +02:00
|
|
|
} verbs[] = {
|
2014-08-15 17:06:10 +02:00
|
|
|
{ "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 },
|
2012-10-17 21:23:30 +02:00
|
|
|
};
|
|
|
|
|
|
|
|
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[]) {
|
tree-wide: expose "p"-suffix unref calls in public APIs to make gcc cleanup easy
GLIB has recently started to officially support the gcc cleanup
attribute in its public API, hence let's do the same for our APIs.
With this patch we'll define an xyz_unrefp() call for each public
xyz_unref() call, to make it easy to use inside a
__attribute__((cleanup())) expression. Then, all code is ported over to
make use of this.
The new calls are also documented in the man pages, with examples how to
use them (well, I only added docs where the _unref() call itself already
had docs, and the examples, only cover sd_bus_unrefp() and
sd_event_unrefp()).
This also renames sd_lldp_free() to sd_lldp_unref(), since that's how we
tend to call our destructors these days.
Note that this defines no public macro that wraps gcc's attribute and
makes it easier to use. While I think it's our duty in the library to
make our stuff easy to use, I figure it's not our duty to make gcc's own
features easy to use on its own. Most likely, client code which wants to
make use of this should define its own:
#define _cleanup_(function) __attribute__((cleanup(function)))
Or similar, to make the gcc feature easier to use.
Making this logic public has the benefit that we can remove three header
files whose only purpose was to define these functions internally.
See #2008.
2015-11-27 19:13:45 +01:00
|
|
|
_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
|
2013-11-06 17:32:51 +01:00
|
|
|
int r;
|
2012-10-17 21:23:30 +02:00
|
|
|
|
2012-11-12 20:16:07 +01:00
|
|
|
setlocale(LC_ALL, "");
|
2012-10-17 21:23:30 +02:00
|
|
|
log_parse_environment();
|
|
|
|
log_open();
|
|
|
|
|
|
|
|
r = parse_argv(argc, argv);
|
2013-10-30 06:55:31 +01:00
|
|
|
if (r <= 0)
|
2012-10-17 21:23:30 +02:00
|
|
|
goto finish;
|
2013-10-30 06:55:31 +01:00
|
|
|
|
2015-09-24 13:30:10 +02:00
|
|
|
r = bus_connect_transport(arg_transport, arg_host, false, &bus);
|
2013-10-30 06:55:31 +01:00
|
|
|
if (r < 0) {
|
2014-11-28 13:19:16 +01:00
|
|
|
log_error_errno(r, "Failed to create bus connection: %m");
|
2012-10-17 21:23:30 +02:00
|
|
|
goto finish;
|
|
|
|
}
|
|
|
|
|
2013-10-30 06:55:31 +01:00
|
|
|
r = hostnamectl_main(bus, argc, argv);
|
2012-10-17 21:23:30 +02:00
|
|
|
|
|
|
|
finish:
|
2014-11-28 15:38:05 +01:00
|
|
|
return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
|
2012-10-17 21:23:30 +02:00
|
|
|
}
|