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/* $Id: tstSSM-2.cpp $ */
/** @file
* Saved State Manager Testcase: Extract the content of a saved state.
*/
/*
* Copyright (C) 2015-2023 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]);
}
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