sd-bus: don't allow creating message objects that are not attached to a bus

It seems unnecessary to support this, and we rather should avoid
allowing this at all, so that people don't program against this
sloppily and we end up remarshalling all the time...

1 files changed, 8 insertions, 3 deletions

diff --git a/src/libsystemd/sd-bus/test-bus-marshal.c b/src/libsystemd/sd-bus/test-bus-marshal.c
index 2be4de571..953211252 100644
--- a/src/libsystemd/sd-bus/test-bus-marshal.c
+++ b/src/libsystemd/sd-bus/test-bus-marshal.c
@@ -93,8 +93,13 @@ int main(int argc, char *argv[]) {
         _cleanup_free_ char *first = NULL, *second = NULL, *third = NULL;
         _cleanup_fclose_ FILE *ms = NULL;
         size_t first_size = 0, second_size = 0, third_size = 0;
+        _cleanup_bus_unref_ sd_bus *bus = NULL;
 
-        r = sd_bus_message_new_method_call(NULL, &m, "foobar.waldo", "/", "foobar.waldo", "Piep");
+        r = sd_bus_default_system(&bus);
+        if (r < 0)
+                return EXIT_TEST_SKIP;
+
+        r = sd_bus_message_new_method_call(bus, &m, "foobar.waldo", "/", "foobar.waldo", "Piep");
         assert_se(r >= 0);
 
         r = sd_bus_message_append(m, "");
@@ -193,7 +198,7 @@ int main(int argc, char *argv[]) {
 
         m = sd_bus_message_unref(m);
 
-        r = bus_message_from_malloc(NULL, buffer, sz, NULL, 0, NULL, NULL, &m);
+        r = bus_message_from_malloc(bus, buffer, sz, NULL, 0, NULL, NULL, &m);
         assert_se(r >= 0);
 
         bus_message_dump(m, stdout, true);
@@ -266,7 +271,7 @@ int main(int argc, char *argv[]) {
         r = sd_bus_message_peek_type(m, NULL, NULL);
         assert_se(r == 0);
 
-        r = sd_bus_message_new_method_call(NULL, &copy, "foobar.waldo", "/", "foobar.waldo", "Piep");
+        r = sd_bus_message_new_method_call(bus, &copy, "foobar.waldo", "/", "foobar.waldo", "Piep");
         assert_se(r >= 0);
 
         r = sd_bus_message_rewind(m, true);