1 files changed, 96 insertions, 0 deletions
diff --git a/src/VBox/VMM/testcase/tstSSM-2.cpp b/src/VBox/VMM/testcase/tstSSM-2.cpp
new file mode 100644
index 00000000..bddcdf73
--- /dev/null
+++ b/src/VBox/VMM/testcase/tstSSM-2.cpp
@@ -0,0 +1,96 @@
+/* $Id: tstSSM-2.cpp $ */
+/** @file
+ * Saved State Manager Testcase: Extract the content of a saved state.
+ */
+
+/*
+ * Copyright (C) 2015-2022 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                                                                                                                 *
+*********************************************************************************************************************************/
+#include <VBox/vmm/ssm.h>
+
+#include <VBox/log.h>
+#include <iprt/assert.h>
+#include <iprt/getopt.h>
+#include <iprt/errcore.h>
+#include <iprt/file.h>
+#include <iprt/path.h>
+#include <iprt/stream.h>
+#include <iprt/initterm.h>
+
+static RTEXITCODE extractUnit(const char *pszFilename, const char *pszUnitname, const char *pszOutputFilename)
+{
+    PSSMHANDLE pSSM;
+    int rc = SSMR3Open(pszFilename, NULL /*pStreamOps*/, NULL /*pvStreamOps*/, 0, &pSSM);
+    RTEXITCODE rcExit = RTEXITCODE_FAILURE;
+    if (RT_SUCCESS(rc))
+    {
+        RTFILE hFile;
+        rc = RTFileOpen(&hFile, pszOutputFilename, RTFILE_O_DENY_NONE | RTFILE_O_WRITE | RTFILE_O_CREATE);
+        if (RT_SUCCESS(rc))
+        {
+            uint32_t version = 0;
+            rc = SSMR3Seek(pSSM, pszUnitname, 0 /* iInstance */, &version);
+            size_t cbUnit = 0;
+            if (RT_SUCCESS(rc))
+            {
+                for (;;)
+                {
+                    uint8_t u8;
+                    rc = SSMR3GetU8(pSSM, &u8);
+                    if (RT_FAILURE(rc))
+                        break;
+                    size_t cbWritten;
+                    rc = RTFileWrite(hFile, &u8, sizeof(u8), &cbWritten);
+                    cbUnit++;
+                }
+                RTPrintf("Unit size %zu bytes, version %d\n", cbUnit, version);
+            }
+            else
+                RTPrintf("Cannot find unit '%s' (%Rrc)\n", pszUnitname, rc);
+            RTFileClose(hFile);
+        }
+        else
+            RTPrintf("Cannot open output file '%s' (%Rrc)\n", pszOutputFilename, rc);
+        SSMR3Close(pSSM);
+    }
+    else
+        RTPrintf("Cannot open SSM file '%s' (%Rrc)\n", pszFilename, rc);
+    return rcExit;
+}
+
+int main(int argc, char **argv)
+{
+    int rc = RTR3InitExe(argc, &argv, 0);
+    AssertRCReturn(rc, RTEXITCODE_INIT);
+
+    if (argc != 4)
+    {
+        RTPrintf("Usage: %s <SSM filename> <SSM unitname> <outfile>\n", RTPathFilename(argv[0]));
+        /* don't fail by default */
+        return RTEXITCODE_SUCCESS;
+    }
+    return extractUnit(argv[1], argv[2], argv[3]);
+}