TUTORIAL: Add skeleton ball protocol files.

Makefile.am

@@ -35,15 +35,17 @@ DIST_SUBDIRS =               \
     src/guacenc              \
     src/guaclog              \
     src/pulse                \
+    src/protocols/ball       \
     src/protocols/kubernetes \
     src/protocols/rdp        \
     src/protocols/ssh        \
     src/protocols/telnet     \
     src/protocols/vnc
 
-SUBDIRS =        \
-    src/libguac  \
-    src/common
+SUBDIRS =              \
+    src/libguac        \
+    src/common         \
+    src/protocols/ball
 
 if ENABLE_COMMON_SSH
 SUBDIRS += src/common-ssh

configure.ac

@@ -1140,6 +1140,7 @@ AC_CONFIG_FILES([Makefile
                  src/guaclog/Makefile
                  src/guaclog/man/guaclog.1
                  src/pulse/Makefile
+                 src/protocols/ball/Makefile
                  src/protocols/kubernetes/Makefile
                  src/protocols/rdp/Makefile
                  src/protocols/rdp/tests/Makefile

src/protocols/ball/Makefile.am

@@ -0,0 +1,20 @@
+AUTOMAKE_OPTIONS = foreign
+
+ACLOCAL_AMFLAGS = -I m4
+AM_FLAGS = -Werror -Wall -pedantic
+
+lib_LTLIBRARIES = libguac-client-ball.la
+
+libguac_client_ball_la_SOURCES = \
+    ball.c
+
+libguac_client_ball_la_CFLAGS = \
+    -Werror -Wall -Iinclude           \
+    @LIBGUAC_INCLUDE@
+
+libguac_client_ball_la_LIBADD = \
+    @COMMON_LTLIB@                    \
+    @LIBGUAC_LTLIB@
+
+libguac_client_ball_la_LDFLAGS = \
+    -version-info 0:0:0 

src/protocols/ball/ball.c

@@ -0,0 +1,33 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+#include <guacamole/client.h>
+
+#include <stdlib.h>
+
+const char* TUTORIAL_ARGS[] = { NULL };
+
+int guac_client_init(guac_client* client) {
+    
+    client->args = TUTORIAL_ARGS;
+    
+    return 0;
+    
+}
+