add version functions

src/org/pEp/jniadapter/AbstractEngine.java

@@ -18,6 +18,7 @@ abstract class AbstractEngine implements AutoCloseable {
     private Sync.NeedsFastPollCallback needsFastPollCallback;
 
     private final static DefaultCallback defaultCallback = new DefaultCallback();
+
     private native void init();
     private native void release();
 
@@ -33,6 +34,9 @@ abstract class AbstractEngine implements AutoCloseable {
         }
     }
 
+    private native String getVersion();
+    private native String getProtocolVersion();
+
     private long keyserverThread;
     private long keyserverQueue;
 

src/org_pEp_jniadapter_AbstractEngine.cc

@@ -201,6 +201,16 @@ extern "C" {
         session(pEp::Adapter::release);
     }
 
+    JNIEXPORT jstring JNICALL Java_org_pEp_jniadapter_AbstractEngine_getVersion(JNIEnv *env, jobject)
+    {
+        return env->NewStringUTF(::get_engine_version());
+    }
+
+    JNIEXPORT jstring JNICALL Java_org_pEp_jniadapter_AbstractEngine_getProtocolVersion(JNIEnv *env, jobject)
+    {
+        return env->NewStringUTF(::get_protocol_version());
+    }
+
     int examine_identity(pEp_identity *ident, void *arg)
     {
         locked_queue< pEp_identity * > *queue = (locked_queue< pEp_identity * > *) arg;