X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fhostnamed.c;h=e3b89a4c62e0b9bf7aac1de67833e8380c7668d5;hp=f579e112ad1a4b82b65d46073a1fb043e5f91535;hb=72b9ed828bd22f3ddd74b6853c183eebf006d6d8;hpb=f401e48c2db22ff9d1a05885b5599bebf19c2707

diff --git a/src/hostnamed.c b/src/hostnamed.c
index f579e112a..e3b89a4c6 100644
--- a/src/hostnamed.c
+++ b/src/hostnamed.c
@@ -31,9 +31,7 @@
 #include "dbus-common.h"
 #include "polkit.h"
 
-#define INTROSPECTION                                                   \
-        DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE                       \
-        "<node>\n"                                                      \
+#define INTERFACE \
         " <interface name=\"org.freedesktop.hostname1\">\n"             \
         "  <property name=\"Hostname\" type=\"s\" access=\"read\"/>\n"  \
         "  <property name=\"StaticHostname\" type=\"s\" access=\"read\"/>\n" \
@@ -55,7 +53,12 @@
         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
         "   <arg name=\"user_interaction\" type=\"b\" direction=\"in\"/>\n" \
         "  </method>\n"                                                 \
-        " </interface>\n"                                               \
+        " </interface>\n"
+
+#define INTROSPECTION                                                   \
+        DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE                       \
+        "<node>\n"                                                      \
+        INTERFACE                                                       \
         BUS_PROPERTIES_INTERFACE                                        \
         BUS_INTROSPECTABLE_INTERFACE                                    \
         BUS_PEER_INTERFACE                                              \
@@ -65,6 +68,8 @@
         BUS_GENERIC_INTERFACES_LIST             \
         "org.freedesktop.hostname1\0"
 
+const char hostname_interface[] _introspect_("hostname1") = INTERFACE;
+
 enum {
         PROP_HOSTNAME,
         PROP_STATIC_HOSTNAME,
@@ -508,7 +513,7 @@ static int connect_bus(DBusConnection **_bus) {
 
         bus = dbus_bus_get_private(DBUS_BUS_SYSTEM, &error);
         if (!bus) {
-                log_error("Failed to get system D-Bus connection: %s", error.message);
+                log_error("Failed to get system D-Bus connection: %s", bus_error_message(&error));
                 r = -ECONNREFUSED;
                 goto fail;
         }
@@ -519,8 +524,15 @@ static int connect_bus(DBusConnection **_bus) {
                 goto fail;
         }
 
-        if (dbus_bus_request_name(bus, "org.freedesktop.hostname1", DBUS_NAME_FLAG_DO_NOT_QUEUE, &error) < 0) {
-                log_error("Failed to register name on bus: %s", error.message);
+        r = dbus_bus_request_name(bus, "org.freedesktop.hostname1", DBUS_NAME_FLAG_DO_NOT_QUEUE, &error);
+        if (dbus_error_is_set(&error)) {
+                log_error("Failed to register name on bus: %s", bus_error_message(&error));
+                r = -EEXIST;
+                goto fail;
+        }
+
+        if (r != DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
+                log_error("Failed to acquire name.");
                 r = -EEXIST;
                 goto fail;
         }
@@ -547,6 +559,16 @@ int main(int argc, char *argv[]) {
         log_parse_environment();
         log_open();
 
+        umask(0022);
+
+        if (argc == 2 && streq(argv[1], "--introspect")) {
+                fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
+                      "<node>\n", stdout);
+                fputs(hostname_interface, stdout);
+                fputs("</node>\n", stdout);
+                return 0;
+        }
+
         if (argc != 1) {
                 log_error("This program takes no arguments.");
                 r = -EINVAL;
@@ -556,8 +578,6 @@ int main(int argc, char *argv[]) {
         if (!check_nss())
                 log_warning("Warning: nss-myhostname is not installed. Changing the local hostname might make it unresolveable. Please install nss-myhostname!");
 
-        umask(0022);
-
         r = read_data();
         if (r < 0) {
                 log_error("Failed to read hostname data: %s", strerror(-r));