chiark / gitweb /
hostnamectl: suppress outputting of pretty hostname field in status if empty
[elogind.git] / src / hostname / hostnamectl.c
index e38be89..064581a 100644 (file)
@@ -36,6 +36,7 @@
 #include "strv.h"
 #include "sd-id128.h"
 #include "virt.h"
+#include "fileio.h"
 
 static enum transport {
         TRANSPORT_NORMAL,
@@ -78,14 +79,18 @@ static void print_status_info(StatusInfo *i) {
         printf("   Static hostname: %s\n",
                strna(i->static_hostname));
 
-        if (!streq_ptr(i->hostname, i->static_hostname))
+        if (!isempty(i->pretty_hostname) &&
+            !streq_ptr(i->pretty_hostname, i->static_hostname))
+                printf("   Pretty hostname: %s\n",
+                       strna(i->pretty_hostname));
+
+        if (!isempty(i->hostname) &&
+            !streq_ptr(i->hostname, i->static_hostname))
                 printf("Transient hostname: %s\n",
                        strna(i->hostname));
 
-        printf("   Pretty hostname: %s\n"
-               "         Icon name: %s\n"
+        printf("         Icon name: %s\n"
                "           Chassis: %s\n",
-               strna(i->pretty_hostname),
                strna(i->icon_name),
                strna(i->chassis));
 
@@ -151,7 +156,7 @@ static int show_status(DBusConnection *bus, char **args, unsigned n) {
         const char *interface = "";
         int r;
         DBusMessageIter iter, sub, sub2, sub3;
-        StatusInfo info;
+        StatusInfo info = {};
 
         assert(args);
 
@@ -175,7 +180,6 @@ static int show_status(DBusConnection *bus, char **args, unsigned n) {
                 return -EIO;
         }
 
-        zero(info);
         dbus_message_iter_recurse(&iter, &sub);
 
         while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
@@ -213,26 +217,6 @@ static int show_status(DBusConnection *bus, char **args, unsigned n) {
         return 0;
 }
 
-static char* hostname_simplify(char *s) {
-        char *p, *d;
-
-        for (p = s, d = s; *p; p++) {
-                if ((*p >= 'a' && *p <= 'z') ||
-                    (*p >= '0' && *p <= '9') ||
-                    *p == '-' || *p == '_')
-                        *(d++) = *p;
-                else if (*p >= 'A' && *p <= 'Z')
-                        *(d++) = *p - 'A' + 'a';
-                else if (*p == ' ')
-                        *(d++) = '-';
-        }
-
-        *d = 0;
-
-        strshorten(s, HOST_NAME_MAX);
-        return s;
-}
-
 static int set_hostname(DBusConnection *bus, char **args, unsigned n) {
         _cleanup_dbus_message_unref_ DBusMessage *reply = NULL;
         dbus_bool_t interactive = true;
@@ -246,6 +230,27 @@ static int set_hostname(DBusConnection *bus, char **args, unsigned n) {
         polkit_agent_open_if_enabled();
 
         if (arg_set_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. */
+
+                h = strdup(hostname);
+                if (!h)
+                        return log_oom();
+
+                hostname_cleanup(h, true);
+
+                if (arg_set_static && streq(h, hostname))
+                        p = "";
+                else {
+                        p = hostname;
+                        hostname = h;
+                }
+
                 r = bus_method_call_with_reply(
                                 bus,
                                 "org.freedesktop.hostname1",
@@ -254,17 +259,14 @@ static int set_hostname(DBusConnection *bus, char **args, unsigned n) {
                                 "SetPrettyHostname",
                                 &reply,
                                 NULL,
-                                DBUS_TYPE_STRING, &hostname,
+                                DBUS_TYPE_STRING, &p,
                                 DBUS_TYPE_BOOLEAN, &interactive,
                                 DBUS_TYPE_INVALID);
                 if (r < 0)
                         return r;
 
-                h = strdup(hostname);
-                if (!h)
-                        return log_oom();
-
-                hostname = hostname_simplify(h);
+                dbus_message_unref(reply);
+                reply = NULL;
         }
 
         if (arg_set_static) {
@@ -282,6 +284,9 @@ static int set_hostname(DBusConnection *bus, char **args, unsigned n) {
 
                 if (r < 0)
                         return r;
+
+                dbus_message_unref(reply);
+                reply = NULL;
         }
 
         if (arg_set_transient) {
@@ -406,7 +411,6 @@ static int parse_argv(int argc, char *argv[]) {
 
                 case ARG_VERSION:
                         puts(PACKAGE_STRING);
-                        puts(DISTRIBUTION);
                         puts(SYSTEMD_FEATURES);
                         return 0;