Adding upstream version 247.3.upstream/247.3upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 451 insertions, 0 deletions

diff --git a/src/hostname/hostnamectl.c b/src/hostname/hostnamectl.c
new file mode 100644
index 0000000..0d39e91
--- /dev/null
+++ b/src/hostname/hostnamectl.c
@@ -0,0 +1,451 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <getopt.h>
+#include <locale.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "sd-bus.h"
+#include "sd-id128.h"
+
+#include "alloc-util.h"
+#include "architecture.h"
+#include "bus-error.h"
+#include "bus-map-properties.h"
+#include "hostname-util.h"
+#include "main-func.h"
+#include "pretty-print.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 char *arg_host = NULL;
+static bool arg_transient = false;
+static bool arg_pretty = false;
+static bool arg_static = false;
+
+typedef struct StatusInfo {
+        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) {
+        sd_id128_t mid = {}, bid = {};
+        int r;
+
+        assert(i);
+
+        printf("   Static hostname: %s\n", strna(i->static_hostname));
+
+        if (!isempty(i->pretty_hostname) &&
+            !streq_ptr(i->pretty_hostname, i->static_hostname))
+                printf("   Pretty hostname: %s\n", i->pretty_hostname);
+
+        if (!isempty(i->hostname) &&
+            !streq_ptr(i->hostname, i->static_hostname))
+                printf("Transient hostname: %s\n", i->hostname);
+
+        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);
+
+        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));
+
+        if (!isempty(i->virtualization))
+                printf("    Virtualization: %s\n", i->virtualization);
+
+        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);
+
+        if (!isempty(i->kernel_name) && !isempty(i->kernel_release))
+                printf("            Kernel: %s %s\n", i->kernel_name, i->kernel_release);
+
+        if (!isempty(i->architecture))
+                printf("      Architecture: %s\n", i->architecture);
+
+}
+
+static int show_one_name(sd_bus *bus, const char* attr) {
+        _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
+        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
+        const char *s;
+        int r;
+
+        r = sd_bus_get_property(
+                        bus,
+                        "org.freedesktop.hostname1",
+                        "/org/freedesktop/hostname1",
+                        "org.freedesktop.hostname1",
+                        attr,
+                        &error, &reply, "s");
+        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 bus_log_parse_error(r);
+
+        printf("%s\n", s);
+
+        return 0;
+}
+
+static int show_all_names(sd_bus *bus, sd_bus_error *error) {
+        StatusInfo info = {};
+
+        static const struct bus_properties_map hostname_map[]  = {
+                { "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)     },
+                { "HomeURL",                   "s", NULL, offsetof(StatusInfo, home_url)        },
+                {}
+        };
+
+        static const struct bus_properties_map manager_map[] = {
+                { "Virtualization",            "s", NULL, offsetof(StatusInfo, virtualization)  },
+                { "Architecture",              "s", NULL, offsetof(StatusInfo, architecture)    },
+                {}
+        };
+
+        _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)
+                return r;
+
+        r = bus_map_all_properties(bus,
+                                   "org.freedesktop.systemd1",
+                                   "/org/freedesktop/systemd1",
+                                   manager_map,
+                                   0,
+                                   error,
+                                   &manager_message,
+                                   &info);
+
+        print_status_info(&info);
+
+        return r;
+}
+
+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;
+
+                if (!!arg_static + !!arg_pretty + !!arg_transient > 1)
+                        return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
+                                               "Cannot query more than one name type at a time");
+
+                attr = arg_pretty ? "PrettyHostname" :
+                        arg_static ? "StaticHostname" : "Hostname";
+
+                return show_one_name(bus, attr);
+        } 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(arg_transport, arg_ask_password);
+
+        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)
+                return log_error_errno(r, "Could not set property: %s", bus_error_message(&error, r));
+
+        return 0;
+}
+
+static int set_hostname(int argc, char **argv, void *userdata) {
+        _cleanup_free_ char *h = NULL;
+        const char *hostname = argv[1];
+        sd_bus *bus = userdata;
+        int r;
+
+        if (!arg_pretty && !arg_static && !arg_transient)
+                arg_pretty = arg_static = arg_transient = true;
+
+        if (arg_pretty) {
+                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. */
+                if (arg_static && hostname_is_valid(hostname, true))
+                        p = ""; /* No pretty hostname (as it is redundant), just a static one */
+                else
+                        p = hostname; /* Use the passed name as pretty hostname */
+
+                r = set_simple_string(bus, "SetPrettyHostname", p);
+                if (r < 0)
+                        return r;
+
+                /* 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 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);
+                if (!h)
+                        return log_oom();
+
+                hostname = hostname_cleanup(h); /* Use the cleaned up name as static hostname */
+        }
+
+        if (arg_static) {
+                r = set_simple_string(bus, "SetStaticHostname", hostname);
+                if (r < 0)
+                        return r;
+        }
+
+        if (arg_transient) {
+                r = set_simple_string(bus, "SetHostname", hostname);
+                if (r < 0)
+                        return r;
+        }
+
+        return 0;
+}
+
+static int set_icon_name(int argc, char **argv, void *userdata) {
+        return set_simple_string(userdata, "SetIconName", argv[1]);
+}
+
+static int set_chassis(int argc, char **argv, void *userdata) {
+        return set_simple_string(userdata, "SetChassis", argv[1]);
+}
+
+static int set_deployment(int argc, char **argv, void *userdata) {
+        return set_simple_string(userdata, "SetDeployment", argv[1]);
+}
+
+static int set_location(int argc, char **argv, void *userdata) {
+        return set_simple_string(userdata, "SetLocation", argv[1]);
+}
+
+static int help(void) {
+        _cleanup_free_ char *link = NULL;
+        int r;
+
+        r = terminal_urlify_man("hostnamectl", "1", &link);
+        if (r < 0)
+                return log_oom();
+
+        printf("%s [OPTIONS...] COMMAND ...\n\n"
+               "%sQuery or change system hostname.%s\n"
+               "\nCommands:\n"
+               "  status                 Show current hostname settings\n"
+               "  set-hostname NAME      Set system hostname\n"
+               "  set-icon-name NAME     Set icon name for host\n"
+               "  set-chassis NAME       Set chassis type for host\n"
+               "  set-deployment NAME    Set deployment environment for host\n"
+               "  set-location NAME      Set location for host\n"
+               "\nOptions:\n"
+               "  -h --help              Show this help\n"
+               "     --version           Show package version\n"
+               "     --no-ask-password   Do not prompt for password\n"
+               "  -H --host=[USER@]HOST  Operate on remote host\n"
+               "  -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"
+               "\nSee the %s for details.\n"
+               , program_invocation_short_name
+               , ansi_highlight()
+               , ansi_normal()
+               , link
+        );
+
+        return 0;
+}
+
+static int verb_help(int argc, char **argv, void *userdata) {
+        return help();
+}
+
+static int parse_argv(int argc, char *argv[]) {
+
+        enum {
+                ARG_VERSION = 0x100,
+                ARG_NO_ASK_PASSWORD,
+                ARG_TRANSIENT,
+                ARG_STATIC,
+                ARG_PRETTY
+        };
+
+        static const struct option options[] = {
+                { "help",            no_argument,       NULL, 'h'                 },
+                { "version",         no_argument,       NULL, ARG_VERSION         },
+                { "transient",       no_argument,       NULL, ARG_TRANSIENT       },
+                { "static",          no_argument,       NULL, ARG_STATIC          },
+                { "pretty",          no_argument,       NULL, ARG_PRETTY          },
+                { "host",            required_argument, NULL, 'H'                 },
+                { "machine",         required_argument, NULL, 'M'                 },
+                { "no-ask-password", no_argument,       NULL, ARG_NO_ASK_PASSWORD },
+                {}
+        };
+
+        int c;
+
+        assert(argc >= 0);
+        assert(argv);
+
+        while ((c = getopt_long(argc, argv, "hH:M:", options, NULL)) >= 0)
+
+                switch (c) {
+
+                case 'h':
+                        return help();
+
+                case ARG_VERSION:
+                        return version();
+
+                case 'H':
+                        arg_transport = BUS_TRANSPORT_REMOTE;
+                        arg_host = optarg;
+                        break;
+
+                case 'M':
+                        arg_transport = BUS_TRANSPORT_MACHINE;
+                        arg_host = optarg;
+                        break;
+
+                case ARG_TRANSIENT:
+                        arg_transient = true;
+                        break;
+
+                case ARG_PRETTY:
+                        arg_pretty = true;
+                        break;
+
+                case ARG_STATIC:
+                        arg_static = true;
+                        break;
+
+                case ARG_NO_ASK_PASSWORD:
+                        arg_ask_password = false;
+                        break;
+
+                case '?':
+                        return -EINVAL;
+
+                default:
+                        assert_not_reached("Unhandled option");
+                }
+
+        return 1;
+}
+
+static int hostnamectl_main(sd_bus *bus, int argc, char *argv[]) {
+
+        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. */
+                {}
+        };
+
+        return dispatch_verb(argc, argv, verbs, bus);
+}
+
+static int run(int argc, char *argv[]) {
+        _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
+        int r;
+
+        setlocale(LC_ALL, "");
+        log_setup_cli();
+
+        r = parse_argv(argc, argv);
+        if (r <= 0)
+                return r;
+
+        r = bus_connect_transport(arg_transport, arg_host, false, &bus);
+        if (r < 0)
+                return bus_log_connect_error(r);
+
+        return hostnamectl_main(bus, argc, argv);
+}
+
+DEFINE_MAIN_FUNCTION(run);