C++ RTStrCopy函数代码示例

/**
 * @interface_method_impl{TXSTRANSPORT,pfnOption}
 */
static DECLCALLBACK(int) txsTcpOption(int ch, PCRTGETOPTUNION pVal)
{
    int rc;

    switch (ch)
    {
        case TXSTCPOPT_MODE:
            if (!strcmp(pVal->psz, "both"))
                g_enmTcpMode = TXSTCPMODE_BOTH;
            else if (!strcmp(pVal->psz, "client"))
                 g_enmTcpMode = TXSTCPMODE_CLIENT;
            else if (!strcmp(pVal->psz, "server"))
                 g_enmTcpMode = TXSTCPMODE_SERVER;
            else
                return RTMsgErrorRc(VERR_INVALID_PARAMETER, "Invalid TCP mode: '%s'\n", pVal->psz);
            break;

        case TXSTCPOPT_BIND_ADDRESS:
            rc = RTStrCopy(g_szTcpBindAddr, sizeof(g_szTcpBindAddr), pVal->psz);
            if (RT_FAILURE(rc))
                return RTMsgErrorRc(VERR_INVALID_PARAMETER, "TCP bind address is too long (%Rrc)", rc);
            return VINF_SUCCESS;

        case TXSTCPOPT_BIND_PORT:
            g_uTcpBindPort = pVal->u16 == 0 ? TXS_TCP_DEF_BIND_PORT : pVal->u16;
            break;

        case TXSTCPOPT_LEGACY_CONNECT:
            g_enmTcpMode = TXSTCPMODE_CLIENT;
            /* fall thru */
        case TXSTCPOPT_CONNECT_ADDRESS:
            rc = RTStrCopy(g_szTcpConnectAddr, sizeof(g_szTcpConnectAddr), pVal->psz);
            if (RT_FAILURE(rc))
                return RTMsgErrorRc(VERR_INVALID_PARAMETER, "TCP connect address is too long (%Rrc)", rc);
            if (!g_szTcpConnectAddr[0])
                strcpy(g_szTcpConnectAddr, TXS_TCP_DEF_CONNECT_ADDRESS);
            return VINF_SUCCESS;

        case TXSTCPOPT_CONNECT_PORT:
            g_uTcpConnectPort = pVal->u16 == 0 ? TXS_TCP_DEF_CONNECT_PORT : pVal->u16;
            break;

        case TXSTCPOPT_LEGACY_PORT:
            if (pVal->u16 == 0)
            {
                g_uTcpBindPort      = TXS_TCP_DEF_BIND_PORT;
                g_uTcpConnectPort   = TXS_TCP_DEF_CONNECT_PORT;
            }
            else
            {
                g_uTcpBindPort      = pVal->u16;
                g_uTcpConnectPort   = pVal->u16;
            }
            return VINF_SUCCESS;
    }
    return VERR_TRY_AGAIN;
}

/**
 * Register statistics for the MSRs.
 *
 * This must not be called before the MSRs have been finalized and moved to the
 * hyper heap.
 *
 * @returns VBox status code.
 * @param   pVM                 The cross context VM structure.
 */
int cpumR3MsrRegStats(PVM pVM)
{
    /*
     * Global statistics.
     */
    PCPUM pCpum = &pVM->cpum.s;
    STAM_REL_REG(pVM, &pCpum->cMsrReads,                STAMTYPE_COUNTER,   "/CPUM/MSR-Totals/Reads",
                 STAMUNIT_OCCURENCES, "All RDMSRs making it to CPUM.");
    STAM_REL_REG(pVM, &pCpum->cMsrReadsRaiseGp,         STAMTYPE_COUNTER,   "/CPUM/MSR-Totals/ReadsRaisingGP",
                 STAMUNIT_OCCURENCES, "RDMSR raising #GPs, except unknown MSRs.");
    STAM_REL_REG(pVM, &pCpum->cMsrReadsUnknown,         STAMTYPE_COUNTER,   "/CPUM/MSR-Totals/ReadsUnknown",
                 STAMUNIT_OCCURENCES, "RDMSR on unknown MSRs (raises #GP).");
    STAM_REL_REG(pVM, &pCpum->cMsrWrites,               STAMTYPE_COUNTER,   "/CPUM/MSR-Totals/Writes",
                 STAMUNIT_OCCURENCES, "All RDMSRs making it to CPUM.");
    STAM_REL_REG(pVM, &pCpum->cMsrWritesRaiseGp,        STAMTYPE_COUNTER,   "/CPUM/MSR-Totals/WritesRaisingGP",
                 STAMUNIT_OCCURENCES, "WRMSR raising #GPs, except unknown MSRs.");
    STAM_REL_REG(pVM, &pCpum->cMsrWritesToIgnoredBits,  STAMTYPE_COUNTER,   "/CPUM/MSR-Totals/WritesToIgnoredBits",
                 STAMUNIT_OCCURENCES, "Writing of ignored bits.");
    STAM_REL_REG(pVM, &pCpum->cMsrWritesUnknown,        STAMTYPE_COUNTER,   "/CPUM/MSR-Totals/WritesUnknown",
                 STAMUNIT_OCCURENCES, "WRMSR on unknown MSRs (raises #GP).");


# ifdef VBOX_WITH_STATISTICS
    /*
     * Per range.
     */
    PCPUMMSRRANGE   paRanges = pVM->cpum.s.GuestInfo.paMsrRangesR3;
    uint32_t        cRanges  = pVM->cpum.s.GuestInfo.cMsrRanges;
    for (uint32_t i = 0; i < cRanges; i++)
    {
        char    szName[160];
        ssize_t cchName;

        if (paRanges[i].uFirst == paRanges[i].uLast)
            cchName = RTStrPrintf(szName, sizeof(szName), "/CPUM/MSRs/%#010x-%s",
                                  paRanges[i].uFirst, paRanges[i].szName);
        else
            cchName = RTStrPrintf(szName, sizeof(szName), "/CPUM/MSRs/%#010x-%#010x-%s",
                                  paRanges[i].uFirst, paRanges[i].uLast, paRanges[i].szName);

        RTStrCopy(&szName[cchName], sizeof(szName) - cchName, "-reads");
        STAMR3Register(pVM, &paRanges[i].cReads, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_OCCURENCES, "RDMSR");

        RTStrCopy(&szName[cchName], sizeof(szName) - cchName, "-writes");
        STAMR3Register(pVM, &paRanges[i].cWrites, STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "WRMSR");

        RTStrCopy(&szName[cchName], sizeof(szName) - cchName, "-GPs");
        STAMR3Register(pVM, &paRanges[i].cGps, STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "#GPs");

        RTStrCopy(&szName[cchName], sizeof(szName) - cchName, "-ign-bits-writes");
        STAMR3Register(pVM, &paRanges[i].cIgnoredBits, STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "WRMSR w/ ignored bits");
    }
# endif /* VBOX_WITH_STATISTICS */

    return VINF_SUCCESS;
}

/**
 * Query the trace configuration specification string.
 *
 * @returns VBox status code.
 * @retval  VINF_SUCCESS
 * @retval  VERR_INVALID_VM_HANDLE
 * @retval  VERR_INVALID_POINTER
 * @retval  VERR_BUFFER_OVERFLOW if the buffer is too small. Buffer will be
 *          empty.

 * @param   pVM                 The cross context VM structure.
 * @param   pszConfig           Pointer to the output buffer.
 * @param   cbConfig            The size of the output buffer.
 */
VMMDECL(int) DBGFR3TraceQueryConfig(PVM pVM, char *pszConfig, size_t cbConfig)
{
    VM_ASSERT_VALID_EXT_RETURN(pVM, VERR_INVALID_VM_HANDLE);
    AssertPtrReturn(pszConfig, VERR_INVALID_POINTER);
    if (cbConfig < 1)
        return VERR_BUFFER_OVERFLOW;
    *pszConfig = '\0';

    if (pVM->hTraceBufR3 == NIL_RTTRACEBUF)
        return VERR_DBGF_NO_TRACE_BUFFER;

    int             rc           = VINF_SUCCESS;
    uint32_t const  fTraceGroups = pVM->aCpus[0].fTraceGroups;
    if (   fTraceGroups == UINT32_MAX
        && PDMR3TracingAreAll(pVM, true /*fEnabled*/))
        rc = RTStrCopy(pszConfig, cbConfig, "all");
    else if (   fTraceGroups == 0
             && PDMR3TracingAreAll(pVM, false /*fEnabled*/))
        rc = RTStrCopy(pszConfig, cbConfig, "-all");
    else
    {
        char   *pszDst = pszConfig;
        size_t  cbDst  = cbConfig;
        uint32_t i = RT_ELEMENTS(g_aVmmTpGroups);
        while (i-- > 0)
            if (g_aVmmTpGroups[i].fMask & fTraceGroups)
            {
                size_t cchThis = g_aVmmTpGroups[i].cchName + (pszDst != pszConfig);
                if (cchThis >= cbDst)
                {
                    rc = VERR_BUFFER_OVERFLOW;
                    break;
                }
                if (pszDst != pszConfig)
                {
                    *pszDst = ' ';
                    memcpy(pszDst + 1, g_aVmmTpGroups[i].pszName, g_aVmmTpGroups[i].cchName + 1);
                }
                else
                    memcpy(pszDst, g_aVmmTpGroups[i].pszName, g_aVmmTpGroups[i].cchName + 1);
                pszDst += cchThis;
                cbDst  -= cchThis;
            }

        if (RT_SUCCESS(rc))
            rc = PDMR3TracingQueryConfig(pVM, pszDst, cbDst);
    }

    if (RT_FAILURE(rc))
        *pszConfig = '\0';
    return rc;
}

RTDECL(int) RTPathAppPrivateArchTop(char *pszPath, size_t cchPath)
{
#if !defined(RT_OS_WINDOWS) && defined(RTPATH_APP_PRIVATE_ARCH_TOP)
    return RTStrCopy(pszPath, cchPath, RTPATH_APP_PRIVATE_ARCH_TOP);
#elif !defined(RT_OS_WINDOWS) && defined(RTPATH_APP_PRIVATE_ARCH)
    return RTStrCopy(pszPath, cchPath, RTPATH_APP_PRIVATE_ARCH);
#elif defined(RT_OS_SOLARIS)
    return rtPathSolarisArchHack(pszPath, cchPath);
#else
    int rc = RTPathExecDir(pszPath, cchPath);
    return rc;
#endif
}

/**
 * Unregisters a shared module for the VM
 *
 * @returns VBox status code.
 * @param   pVM                 Pointer to the VM.
 * @param   pszModuleName       Module name.
 * @param   pszVersion          Module version.
 * @param   GCBaseAddr          Module base address.
 * @param   cbModule            Module size.
 *
 * @todo    This should be a GMMR3 call. No need to involve GMM here.
 */
VMMR3DECL(int) PGMR3SharedModuleUnregister(PVM pVM, char *pszModuleName, char *pszVersion, RTGCPTR GCBaseAddr, uint32_t cbModule)
{
    Log(("PGMR3SharedModuleUnregister name=%s version=%s base=%RGv size=%x\n", pszModuleName, pszVersion, GCBaseAddr, cbModule));
    AssertMsgReturn(cbModule > 0 && cbModule < _1G, ("%u\n", cbModule), VERR_OUT_OF_RANGE);


    /*
     * Forward the request to GMM (ring-0).
     */
    PGMMUNREGISTERSHAREDMODULEREQ pReq = (PGMMUNREGISTERSHAREDMODULEREQ)RTMemAlloc(sizeof(*pReq));
    AssertReturn(pReq, VERR_NO_MEMORY);

    pReq->GCBaseAddr    = GCBaseAddr;
    pReq->u32Alignment  = 0;
    pReq->cbModule      = cbModule;

    int rc = RTStrCopy(pReq->szName, sizeof(pReq->szName), pszModuleName);
    if (RT_SUCCESS(rc))
    {
        rc = RTStrCopy(pReq->szVersion, sizeof(pReq->szVersion), pszVersion);
        if (RT_SUCCESS(rc))
        {
            pgmR3PhysAssertSharedPageChecksums(pVM);
            rc = GMMR3UnregisterSharedModule(pVM, pReq);
            pgmR3PhysAssertSharedPageChecksums(pVM);

# ifdef VBOX_STRICT
            /*
             * Update our local tracking.
             */
            for (unsigned i = 0; i < g_cSharedModules; i++)
            {
                if (    g_apSharedModules[i]
                    &&  !strcmp(g_apSharedModules[i]->szName, pszModuleName)
                    &&  !strcmp(g_apSharedModules[i]->szVersion, pszVersion))
                {
                    RTMemFree(g_apSharedModules[i]);
                    g_apSharedModules[i] = NULL;
                    g_cSharedModules--;
                    break;
                }
            }
# endif /* VBOX_STRICT */
        }
    }

    RTMemFree(pReq);
    return rc;
}

/**
 * Unregisters a shared module for the VM
 *
 * @returns IPRT status code.
 * @param   pszModuleName       Module name
 * @param   pszVersion          Module version
 * @param   GCBaseAddr          Module base address
 * @param   cbModule            Module size
 */
VBGLR3DECL(int) VbglR3UnregisterSharedModule(char *pszModuleName, char *pszVersion, RTGCPTR64 GCBaseAddr, uint32_t cbModule)
{
    VMMDevSharedModuleUnregistrationRequest Req;

    vmmdevInitRequest(&Req.header, VMMDevReq_UnregisterSharedModule);
    Req.GCBaseAddr    = GCBaseAddr;
    Req.cbModule      = cbModule;

    if (    RTStrCopy(Req.szName, sizeof(Req.szName), pszModuleName) != VINF_SUCCESS
        ||  RTStrCopy(Req.szVersion, sizeof(Req.szVersion), pszVersion) != VINF_SUCCESS)
    {
        return VERR_BUFFER_OVERFLOW;
    }
    return vbglR3GRPerform(&Req.header);
}

VBGLR3DECL(int) VbglR3DnDConnect(uint32_t *pu32ClientId)
{
    /* Validate input */
    AssertPtrReturn(pu32ClientId, VERR_INVALID_POINTER);

    /* Initialize header */
    VBoxGuestHGCMConnectInfo Info;
    RT_ZERO(Info.Loc.u);
    Info.result      = VERR_WRONG_ORDER;
    Info.u32ClientID = UINT32_MAX;  /* try make valgrind shut up. */
    /* Initialize parameter */
    Info.Loc.type    = VMMDevHGCMLoc_LocalHost_Existing;
    int rc = RTStrCopy(Info.Loc.u.host.achName, sizeof(Info.Loc.u.host.achName), "VBoxDragAndDropSvc");
    if (RT_FAILURE(rc)) return rc;
    /* Do request */
    rc = vbglR3DoIOCtl(VBOXGUEST_IOCTL_HGCM_CONNECT, &Info, sizeof(Info));
    if (RT_SUCCESS(rc))
    {
        rc = Info.result;
        if (RT_SUCCESS(rc))
            *pu32ClientId = Info.u32ClientID;
    }
    if (rc == VERR_HGCM_SERVICE_NOT_FOUND)
        rc = VINF_PERMISSION_DENIED;
    return rc;
}

/**
 * Adds a directory.
 *
 * @returns IPRT status code (fully bitched).
 * @param   pszPath             The directory path.
 * @param   pCfg                The configuration.
 */
static int rtDbgSymCacheAddDir(const char *pszPath, PCRTDBGSYMCACHEADDCFG pCfg)
{
    /*
     * Set up the path buffer, stripping any filter.
     */
    char szPath[RTPATH_MAX];
    int rc = RTStrCopy(szPath, sizeof(szPath) - 2, pszPath);
    if (RT_FAILURE(rc))
        return RTMsgErrorExit(RTEXITCODE_FAILURE, "Path too long: '%s'", pszPath);

    size_t cchPath = strlen(pszPath);
    if (!cchPath)
        return RTMsgErrorExit(RTEXITCODE_FAILURE, "Path empty: '%s'", pszPath);

    if (pCfg->pszFilter)
        szPath[cchPath - strlen(pCfg->pszFilter)] = '\0';
    cchPath = RTPathStripTrailingSlash(szPath);
    if (!RTPATH_IS_SEP(pszPath[cchPath - 1]))
    {
        szPath[cchPath++] = RTPATH_SLASH;
        szPath[cchPath]   = '\0';
    }

    /*
     * Let the worker do the rest.
     */
    RTDIRENTRYEX DirEntry;
    return rtDbgSymCacheAddDirWorker(szPath, cchPath, &DirEntry, pCfg);
}

int DumpHtml(char* src, size_t cb)
{
    size_t lenght = 0;
    int rc = RTStrNLenEx(src, cb, &lenght);
    if (RT_SUCCESS(rc))
    {
        char* buf = (char*)RTMemAlloc(cb + 1);
        if (buf != NULL)
        {
            RT_BZERO(buf, cb + 1);
            rc = RTStrCopy(buf, cb, (const char*)src);
            if (RT_SUCCESS(rc))
            {
                for (int i = 0; i < cb; ++i)
                {
                    if (buf[i] == '\n' || buf[i] == '\r')
                        buf[i] = ' ';
                }
            }
            else
            {
                Log(("Error in copying string.\n"));
            }
            Log(("Removed \\r\\n: %s\n", buf));
            RTMemFree(buf);
        }
        else
        {
            rc = VERR_NO_MEMORY;
            Log(("Not enough memory to allocate buffer.\n"));
        }
    }
    return rc;
}

RTDECL(int) RTLocaleQueryLocaleName(char *pszName, size_t cbName)
{
    const char *pszLocale = setlocale(LC_ALL, NULL);
    if (!pszLocale)
        return RTStrCopy(pszName, cbName, pszLocale);
    return VERR_NOT_AVAILABLE;
}

/**
 * Verifies the manifest and its signature.
 *
 * @returns VBox status code, failures with message.
 * @param   hManifestFile       The xml from the extension pack.
 * @param   pszExtPackName      The expected extension pack name.  This can be
 *                              NULL, in which we don't have any expectations.
 * @param   pszError            Where to store an error message on failure.
 * @param   cbError             The size of the buffer @a pszError points to.
 */
static int vboxExtPackVerifyXml(RTVFSFILE hXmlFile, const char *pszExtPackName, char *pszError, size_t cbError)
{
    /*
     * Load the XML.
     */
    VBOXEXTPACKDESC     ExtPackDesc;
    RTCString   *pstrErr = VBoxExtPackLoadDescFromVfsFile(hXmlFile, &ExtPackDesc, NULL);
    if (pstrErr)
    {
        RTStrCopy(pszError, cbError, pstrErr->c_str());
        delete pstrErr;
        return VERR_PARSE_ERROR;
    }

    /*
     * Check the name.
     */
    /** @todo drop this restriction after the old install interface is
     *        dropped. */
    int rc = VINF_SUCCESS;
    if (   pszExtPackName
        && !ExtPackDesc.strName.equalsIgnoreCase(pszExtPackName))
        rc = vboxExtPackReturnError(VERR_NOT_EQUAL, pszError, cbError,
                                    "The name of the downloaded file and the name stored inside the extension pack does not match"
                                    " (xml='%s' file='%s')", ExtPackDesc.strName.c_str(), pszExtPackName);
    return rc;
}

DECLVBGL(int) vboxCrCtlConConnect(HVBOXCRCTL hCtl, uint32_t *pu32ClientID)
{
    VBoxGuestHGCMConnectInfo info;
    int rc;

    if (!hCtl || !pu32ClientID)
        return VERR_INVALID_PARAMETER;

    memset(&info, 0, sizeof (info));
    info.Loc.type = VMMDevHGCMLoc_LocalHost_Existing;
    RTStrCopy(info.Loc.u.host.achName, sizeof (info.Loc.u.host.achName), "VBoxSharedCrOpenGL");
    rc = vbglDriverIOCtl (&hCtl->driver, VBOXGUEST_IOCTL_HGCM_CONNECT, &info, sizeof (info));
    if (RT_SUCCESS(rc))
    {
        rc = info.result;
        if (RT_SUCCESS(rc))
        {
            Assert(info.u32ClientID);
            *pu32ClientID = info.u32ClientID;
            return rc;
        }
    }

    Assert(RT_FAILURE(rc));
    *pu32ClientID = 0;
    return rc;
}

DECLHIDDEN(int) rtProcInitExePath(char *pszPath, size_t cchPath)
{
    /*
     * Read the /proc/self/exe link, convert to native and return it.
     */
    int cchLink = readlink("/proc/self/exe", pszPath, cchPath - 1);
    if (cchLink > 0 && (size_t)cchLink <= cchPath - 1)
    {
        pszPath[cchLink] = '\0';

        char const *pszTmp;
        int rc = rtPathFromNative(&pszTmp, pszPath, NULL);
        AssertMsgRCReturn(rc, ("rc=%Rrc pszLink=\"%s\"\nhex: %.*Rhxs\n", rc, pszPath, cchLink, pszPath), rc);
        if (pszTmp != pszPath)
        {
            rc = RTStrCopy(pszPath, cchPath, pszTmp);
            rtPathFreeIprt(pszTmp, pszPath);
        }
        return rc;
    }

    int err = errno;
    int rc = RTErrConvertFromErrno(err);
    AssertMsgFailed(("rc=%Rrc err=%d cchLink=%d\n", rc, err, cchLink));
    return rc;
}

/**
 * Opens the output file.
 *
 * @returns Command exit, error messages written using RTMsg*.
 *
 * @param   pszFile             The input filename.
 * @param   pOpts               The options, szOutput will be filled in by this
 *                              function on success.
 * @param   phVfsIos            Where to return the output stream handle.
 *
 * @remarks This is actually not quite the way we need to do things.
 *
 *          First of all, we need a GZIP file system stream for a real GZIP
 *          implementation, since there may be more than one file in the gzipped
 *          file.
 *
 *          Second, we need to open the output files as we encounter files in the input
 *          file system stream. The gzip format contains timestamp and usually a
 *          filename, the default is to use this name (see the --no-name
 *          option).
 */
static RTEXITCODE gzipOpenOutput(const char *pszFile, PRTGZIPCMDOPTS pOpts, PRTVFSIOSTREAM phVfsIos)
{
    int rc;
    if (!strcmp(pszFile, "-") || pOpts->fStdOut)
    {
        strcpy(pOpts->szOutput, "-");

        if (   !pOpts->fForce
            && !pOpts->fDecompress
            && gzipIsStdHandleATty(RTHANDLESTD_OUTPUT))
            return RTMsgErrorExit(RTEXITCODE_SYNTAX,
                                  "Yeah, right. I'm not writing any compressed data to the terminal without --force.\n");

        rc = RTVfsIoStrmFromStdHandle(RTHANDLESTD_OUTPUT,
                                      RTFILE_O_WRITE | RTFILE_O_OPEN | RTFILE_O_DENY_NONE,
                                      true /*fLeaveOpen*/,
                                      phVfsIos);
        if (RT_FAILURE(rc))
            return RTMsgErrorExit(RTEXITCODE_FAILURE, "Error opening standard output: %Rrc", rc);
    }
    else
    {
        Assert(!RTVfsChainIsSpec(pszFile));

        /* Construct an output filename. */
        rc = RTStrCopy(pOpts->szOutput, sizeof(pOpts->szOutput), pszFile);
        if (RT_FAILURE(rc))
            return RTMsgErrorExit(RTEXITCODE_FAILURE, "Error constructing output filename: %Rrc", rc);
        if (pOpts->fDecompress)
        {
            /** @todo take filename from archive? */
            size_t cchSuff = strlen(pOpts->pszSuff); Assert(cchSuff > 0);
            size_t cch = strlen(pOpts->szOutput);
            if (   cch <= cchSuff
                || strcmp(&pOpts->szOutput[cch - cchSuff], pOpts->pszSuff))
                return RTMsgErrorExit(RTEXITCODE_FAILURE, "Input file does not end with: '%s'", pOpts->pszSuff);
            pOpts->szOutput[cch - cchSuff] = '\0';
            if (!RTPathFilename(pOpts->szOutput))
                return RTMsgErrorExit(RTEXITCODE_FAILURE, "Error constructing output filename: Input file name is all suffix.");
        }
        else
        {
            rc = RTStrCat(pOpts->szOutput, sizeof(pOpts->szOutput), pOpts->pszSuff);
            if (RT_FAILURE(rc))
                return RTMsgErrorExit(RTEXITCODE_FAILURE, "Error constructing output filename: %Rrc", rc);
        }

        /* Open the output file. */
        uint32_t fOpen = RTFILE_O_WRITE | RTFILE_O_DENY_WRITE;
        if (pOpts->fForce)
            fOpen |= RTFILE_O_CREATE_REPLACE;
        else
            fOpen |= RTFILE_O_CREATE;
        rc = RTVfsIoStrmOpenNormal(pOpts->szOutput, fOpen, phVfsIos);
        if (RT_FAILURE(rc))
            return RTMsgErrorExit(RTEXITCODE_FAILURE, "Error opening output file '%s': %Rrc", pOpts->szOutput, rc);
    }

    return RTEXITCODE_SUCCESS;
}

DECLVBGL(int) VbglR0CrCtlConConnect(VBGLCRCTLHANDLE hCtl, HGCMCLIENTID *pidClient)
{
    VBoxGuestHGCMConnectInfo info;
    int rc;

    if (!hCtl || !pidClient)
        return VERR_INVALID_PARAMETER;

    RT_ZERO(info);
    info.Loc.type = VMMDevHGCMLoc_LocalHost_Existing;
    RTStrCopy(info.Loc.u.host.achName, sizeof(info.Loc.u.host.achName), "VBoxSharedCrOpenGL");
    rc = vbglDriverIOCtl(&hCtl->driver, VBOXGUEST_IOCTL_HGCM_CONNECT, &info, sizeof(info));
    if (RT_SUCCESS(rc))
    {
        rc = info.result;
        if (RT_SUCCESS(rc))
        {
            Assert(info.u32ClientID);
            *pidClient = info.u32ClientID;
            return rc;
        }
    }

    AssertRC(rc);
    *pidClient = 0;
    return rc;
}