sd-bus: rename sd_bus_get_server_id() to sd_bus_get_owner_id()

In kdbus a "server id" is mostly a misnomer, as there isn't any "server"
involved anymore. Let's rename this to "owner" id hence, since it is an
ID that is picked by the owner of a bus or direct connection. This
matches nicely the sd_bus_get_owner_creds() call we already have.

src/bus-proxyd/bus-proxyd.c

@@ -676,7 +676,7 @@ static int process_driver(sd_bus *a, sd_bus *b, sd_bus_message *m) {
                 sd_id128_t server_id;
                 char buf[SD_ID128_STRING_MAX];
 
-                r = sd_bus_get_server_id(a, &server_id);
+                r = sd_bus_get_owner_id(a, &server_id);
                 if (r < 0)
                         return synthetic_reply_method_errno(m, r, NULL);
 
@@ -1230,7 +1230,7 @@ int main(int argc, char *argv[]) {
                 goto finish;
         }
 
-        r = sd_bus_get_server_id(a, &server_id);
+        r = sd_bus_get_owner_id(a, &server_id);
         if (r < 0) {
                 log_error("Failed to get server ID: %s", strerror(-r));
                 goto finish;

src/libsystemd/libsystemd.sym.m4

@@ -190,7 +190,7 @@ global:
         sd_bus_unref;
         sd_bus_is_open;
         sd_bus_can_send;
-        sd_bus_get_server_id;
+        sd_bus_get_owner_id;
         sd_bus_get_owner_creds;
         sd_bus_get_description;
         sd_bus_send;

src/libsystemd/sd-bus/sd-bus.c

@@ -1412,18 +1412,18 @@ _public_ int sd_bus_can_send(sd_bus *bus, char type) {
         return bus_type_is_valid(type);
 }
 
-_public_ int sd_bus_get_server_id(sd_bus *bus, sd_id128_t *server_id) {
+_public_ int sd_bus_get_owner_id(sd_bus *bus, sd_id128_t *id) {
         int r;
 
         assert_return(bus, -EINVAL);
-        assert_return(server_id, -EINVAL);
+        assert_return(id, -EINVAL);
         assert_return(!bus_pid_changed(bus), -ECHILD);
 
         r = bus_ensure_running(bus);
         if (r < 0)
                 return r;
 
-        *server_id = bus->server_id;
+        *id = bus->server_id;
         return 0;
 }
 

src/libsystemd/sd-bus/test-bus-chat.c

@@ -78,7 +78,7 @@ static int server_init(sd_bus **_bus) {
                 goto fail;
         }
 
-        r = sd_bus_get_server_id(bus, &id);
+        r = sd_bus_get_owner_id(bus, &id);
         if (r < 0) {
                 log_error("Failed to get server ID: %s", strerror(-r));
                 goto fail;

src/systemd/sd-bus.h

@@ -112,7 +112,7 @@ int sd_bus_set_address(sd_bus *bus, const char *address);
 int sd_bus_set_fd(sd_bus *bus, int input_fd, int output_fd);
 int sd_bus_set_exec(sd_bus *bus, const char *path, char *const argv[]);
 int sd_bus_set_bus_client(sd_bus *bus, int b);
-int sd_bus_set_server(sd_bus *bus, int b, sd_id128_t server_id);
+int sd_bus_set_server(sd_bus *bus, int b, sd_id128_t owner_id);
 int sd_bus_set_anonymous(sd_bus *bus, int b);
 int sd_bus_set_trusted(sd_bus *bus, int b);
 int sd_bus_set_description(sd_bus *bus, const char *description);
@@ -130,7 +130,7 @@ sd_bus *sd_bus_unref(sd_bus *bus);
 
 int sd_bus_is_open(sd_bus *bus);
 int sd_bus_can_send(sd_bus *bus, char type);
-int sd_bus_get_server_id(sd_bus *bus, sd_id128_t *peer);
+int sd_bus_get_owner_id(sd_bus *bus, sd_id128_t *id);
 int sd_bus_get_owner_creds(sd_bus *bus, uint64_t creds_mask, sd_bus_creds **ret);
 int sd_bus_get_description(sd_bus *bus, const char **description);
 int sd_bus_get_tid(sd_bus *bus, pid_t *tid);
@@ -147,6 +147,7 @@ int sd_bus_process(sd_bus *bus, sd_bus_message **r);
 int sd_bus_process_priority(sd_bus *bus, int64_t max_priority, sd_bus_message **r);
 int sd_bus_wait(sd_bus *bus, uint64_t timeout_usec);
 int sd_bus_flush(sd_bus *bus);
+
 sd_bus_slot* sd_bus_get_current_slot(sd_bus *bus);
 sd_bus_message* sd_bus_get_current_message(sd_bus *bus);
 sd_bus_message_handler_t sd_bus_get_current_handler(sd_bus *bus);
@@ -171,10 +172,8 @@ sd_bus_slot* sd_bus_slot_ref(sd_bus_slot *slot);
 sd_bus_slot* sd_bus_slot_unref(sd_bus_slot *slot);
 
 sd_bus* sd_bus_slot_get_bus(sd_bus_slot *slot);
-
 void *sd_bus_slot_get_userdata(sd_bus_slot *slot);
 void *sd_bus_slot_set_userdata(sd_bus_slot *slot, void *userdata);
-
 int sd_bus_slot_set_description(sd_bus_slot *slot, const char *description);
 int sd_bus_slot_get_description(sd_bus_slot *slot, char **description);