1 files changed, 123 insertions, 0 deletions
diff --git a/src/VBox/HostServices/SharedClipboard/VBoxSharedClipboardSvc-x11-stubs.cpp b/src/VBox/HostServices/SharedClipboard/VBoxSharedClipboardSvc-x11-stubs.cpp
new file mode 100644
index 00000000..499303b5
--- /dev/null
+++ b/src/VBox/HostServices/SharedClipboard/VBoxSharedClipboardSvc-x11-stubs.cpp
@@ -0,0 +1,123 @@
+/* $Id: VBoxSharedClipboardSvc-x11-stubs.cpp $*/
+/** @file
+ * Shared Clipboard Service - Linux host, a stub version with no functionality for use on headless hosts.
+ */
+
+/*
+ * Copyright (C) 2006-2022 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#define LOG_GROUP LOG_GROUP_SHARED_CLIPBOARD
+#include <VBox/HostServices/VBoxClipboardSvc.h>
+
+#include <iprt/alloc.h>
+#include <iprt/asm.h>        /* For atomic operations */
+#include <iprt/assert.h>
+#include <iprt/mem.h>
+#include <iprt/string.h>
+#include <iprt/thread.h>
+#include <iprt/process.h>
+#include <iprt/semaphore.h>
+#include <string.h>
+#include <stdio.h>
+#include <stdint.h>
+
+#include "VBoxSharedClipboardSvc-internal.h"
+
+
+/*
+ * Initialise the host side of the shared clipboard - called by the hgcm layer.
+ */
+int ShClBackendInit(PSHCLBACKEND pBackend, VBOXHGCMSVCFNTABLE *pTable)
+{
+    RT_NOREF(pTable);
+    LogFlowFunc(("called, returning VINF_SUCCESS\n"));
+    return VINF_SUCCESS;
+}
+
+/*
+ * Terminate the host side of the shared clipboard - called by the hgcm layer.
+ */
+void ShClBackendDestroy(PSHCLBACKEND pBackend)
+{
+    RT_NOREF(pBackend);
+    LogFlowFunc(("called, returning\n"));
+}
+
+int ShClBackendConnect(PSHCLBACKEND pBackend, PSHCLCLIENT pClient, bool fHeadless)
+{
+    RT_NOREF(pBackend, pClient, fHeadless);
+    LogFlowFunc(("called, returning VINF_SUCCESS\n"));
+    return VINF_SUCCESS;
+}
+
+/*
+ * Synchronise the contents of the host clipboard with the guest, called by the HGCM layer
+ * after a save and restore of the guest.
+ */
+int ShClBackendSync(PSHCLBACKEND pBackend, PSHCLCLIENT pClient)
+{
+    RT_NOREF(pBackend, pClient);
+    LogFlowFunc(("called, returning VINF_SUCCESS\n"));
+    return VINF_SUCCESS;
+}
+
+int ShClBackendDisconnect(PSHCLBACKEND pBackend, PSHCLCLIENT pClient)
+{
+    RT_NOREF(pBackend, pClient);
+    return VINF_SUCCESS;
+}
+
+/*
+ * The guest is taking possession of the shared clipboard.
+ * Called by the HGCM clipboard subsystem.
+ */
+int ShClBackendReportFormats(PSHCLBACKEND pBackend, PSHCLCLIENT pClient, SHCLFORMATS fFormats)
+{
+    RT_NOREF(pBackend, pClient, fFormats);
+    return VINF_SUCCESS;
+}
+
+/*
+ * Called by the HGCM clipboard subsystem when the guest wants to read the host clipboard.
+ */
+int ShClBackendReadData(PSHCLBACKEND pBackend, PSHCLCLIENT pClient, PSHCLCLIENTCMDCTX pCmdCtx,
+                        SHCLFORMAT uFormat, void *pvData, uint32_t cbData, uint32_t *pcbActual)
+{
+    RT_NOREF(pBackend, pClient, pCmdCtx, uFormat, pvData, cbData);
+
+    /* No data available. */
+    *pcbActual = 0;
+
+    return VINF_SUCCESS;
+}
+
+int ShClBackendWriteData(PSHCLBACKEND pBackend, PSHCLCLIENT pClient, PSHCLCLIENTCMDCTX pCmdCtx,
+                         SHCLFORMAT uFormat, void *pvData, uint32_t cbData)
+{
+    RT_NOREF(pBackend, pClient, pCmdCtx, uFormat, pvData, cbData);
+    return VERR_NOT_IMPLEMENTED;
+}
+