contributed by Jiri Moskovcak <jmoskovc@redhat.com>

include/dbus-c++/connection.h

@@ -409,6 +409,8 @@ public:
 	PendingCall send_async( Message& msg, int timeout = -1);
 
 	void request_name( const char* name, int flags = 0 );
+    
+    unsigned long sender_unix_uid(const char *sender);
 
 	/*!
 	 * \brief Asks the bus whether a certain name has an owner.

src/connection.cpp

@@ -398,6 +398,17 @@ void Connection::request_name(const char *name, int flags)
 	}
 }
 
+unsigned long Connection::sender_unix_uid(const char *sender)
+{
+    InternalError e;
+    
+    unsigned long ul = dbus_bus_get_unix_user(_pvt->conn, sender, e);
+    
+    if (e) throw Error(e);
+    
+    return ul;
+}
+
 bool Connection::has_name(const char *name)
 {	
 	InternalError e;