X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Flibsystemd%2Fsd-bus%2Fbus-message.c;h=9bc05c20340c38f92fcaf79a0d3d8dadc30c119a;hb=64e96a194d9fb8e9e69769bf88f067fadf9acce7;hp=6889754a965f15da17261c94667fc296150c5da2;hpb=be660c371b231c253a97464ddd8f32ec8721da21;p=elogind.git

diff --git a/src/libsystemd/sd-bus/bus-message.c b/src/libsystemd/sd-bus/bus-message.c
index 6889754a9..9bc05c203 100644
--- 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;