bus-proxy: check passed parameter signature of all driver method calls

[elogind.git] / src / libsystemd / sd-bus / bus-message.c

diff --git a/src/libsystemd/sd-bus/bus-message.c b/src/libsystemd/sd-bus/bus-message.c
index 6889754a965f15da17261c94667fc296150c5da2..9bc05c20340c38f92fcaf79a0d3d8dadc30c119a 100644 (file)
--- a/src/libsystemd/sd-bus/bus-message.c
+++ b/src/libsystemd/sd-bus/bus-message.c
@@ -5396,6 +5396,12 @@ _public_ int sd_bus_message_is_empty(sd_bus_message *m) {
         return isempty(m->root_container.signature);
 }
 
+_public_ int sd_bus_message_has_signature(sd_bus_message *m, const char *signature) {
+        assert_return(m, -EINVAL);
+
+        return streq(strempty(m->root_container.signature), strempty(signature));
+}
+
 _public_ int sd_bus_message_copy(sd_bus_message *m, sd_bus_message *source, int all) {
         bool done_something = false;
         int r;