HRESULT
ceJetHResult(
IN HRESULT hr)
{
if (S_OK != hr)
{
if (SUCCEEDED(hr))
{
#if 0
hr = HRESULT_FROM_JETWARNING(hr);
#else
if (S_FALSE != hr)
{
_PrintError(hr, "JetHResult: mapping to S_FALSE");
}
assert(S_FALSE == hr);
hr = S_FALSE;
#endif
}
else if (ISJETERROR(hr))
{
hr = HRESULT_FROM_JETERROR(hr);
}
}
assert(S_OK == hr || S_FALSE == hr || FAILED(hr));
return(hr);
}
HRESULT
ceGetMachineDnsName(
OUT WCHAR **ppwszDnsName)
{
HRESULT hr;
WCHAR *pwszDnsName = NULL;
DWORD cwc;
COMPUTER_NAME_FORMAT NameType = ComputerNameDnsFullyQualified;
*ppwszDnsName = NULL;
while (TRUE)
{
cwc = 0;
if (!GetComputerNameEx(NameType, NULL, &cwc))
{
hr = ceHLastError();
if (HRESULT_FROM_WIN32(ERROR_FILE_NOT_FOUND) == hr &&
ComputerNameDnsFullyQualified == NameType)
{
_PrintError(hr, "GetComputerNameEx(DnsFullyQualified) -- switching to NetBIOS");
NameType = ComputerNameNetBIOS;
continue;
}
if (HRESULT_FROM_WIN32(ERROR_MORE_DATA) != hr)
{
_JumpError(hr, error, "GetComputerNameEx");
}
break;
}
}
pwszDnsName = (WCHAR *) LocalAlloc(LMEM_FIXED, cwc * sizeof(WCHAR));
if (NULL == pwszDnsName)
{
hr = E_OUTOFMEMORY;
_JumpError(hr, error, "LocalAlloc");
}
if (!GetComputerNameEx(NameType, pwszDnsName, &cwc))
{
hr = ceHLastError();
_JumpError(hr, error, "GetComputerNameEx");
}
*ppwszDnsName = pwszDnsName;
pwszDnsName = NULL;
hr = S_OK;
error:
if (NULL != pwszDnsName)
{
LocalFree(pwszDnsName);
}
return(hr);
}
HRESULT
ceDispatchSetErrorInfo(
IN HRESULT hrError,
IN WCHAR const *pwszDescription,
OPTIONAL IN WCHAR const *pwszProgId,
OPTIONAL IN IID const *piid)
{
HRESULT hr;
WCHAR const *pwszError = NULL;
WCHAR *pwszText = NULL;
if (NULL == pwszDescription)
{
hr = E_POINTER;
_JumpError(hr, error, "NULL pointer");
}
assert(FAILED(hrError));
pwszError = ceGetErrorMessageText(hrError, TRUE);
if (NULL == pwszError)
{
_PrintError(E_OUTOFMEMORY, "myGetErrorMessageText");
}
else
{
pwszText = (WCHAR *) LocalAlloc(
LMEM_FIXED,
(wcslen(pwszDescription) + 1 + wcslen(pwszError) + 1) *
sizeof(WCHAR));
if (NULL == pwszText)
{
_PrintError(E_OUTOFMEMORY, "LocalAlloc");
}
else
{
wcscpy(pwszText, pwszDescription);
wcscat(pwszText, L" ");
wcscat(pwszText, pwszError);
}
}
hr = ceDispatchSetErrorInfoSub(
hrError,
NULL, // pwszIDispatchMethod
NULL != pwszText?
pwszText : const_cast<WCHAR *>(pwszDescription),
pwszProgId,
piid,
NULL, // pwszHelpFile
0); // dwHelpFileContext
_PrintIfError(hr, "ceDispatchSetErrorInfoSub");
error:
if (NULL != pwszText)
{
LocalFree(pwszText);
}
if (NULL != pwszError)
{
LocalFree(const_cast<WCHAR *>(pwszError));
}
return(hrError); // return input error!
}
