Blame winpr/libwinpr/path/include/PathCchAddSeparatorEx.c

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/*
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#define DEFINE_UNICODE			FALSE
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#define _PATH_SEPARATOR_CHR		'\\'
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#define PATH_CCH_ADD_SEPARATOR_EX	PathCchAddBackslashExA
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*/
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#if DEFINE_UNICODE
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HRESULT PATH_CCH_ADD_SEPARATOR_EX(PWSTR pszPath, size_t cchPath, PWSTR* ppszEnd,
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                                  size_t* pcchRemaining)
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{
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	size_t pszPathLength;
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	if (!pszPath)
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		return E_INVALIDARG;
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	pszPathLength = lstrlenW(pszPath);
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	if (pszPath[pszPathLength - 1] == _PATH_SEPARATOR_CHR)
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		return S_FALSE;
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	if (cchPath > (pszPathLength + 1))
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	{
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		pszPath[pszPathLength] = _PATH_SEPARATOR_CHR;
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		pszPath[pszPathLength + 1] = '\0';
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		return S_OK;
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	}
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	return HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
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}
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#else
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HRESULT PATH_CCH_ADD_SEPARATOR_EX(PSTR pszPath, size_t cchPath, PSTR* ppszEnd,
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                                  size_t* pcchRemaining)
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{
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	size_t pszPathLength;
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	if (!pszPath)
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		return E_INVALIDARG;
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	pszPathLength = lstrlenA(pszPath);
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	if (pszPath[pszPathLength - 1] == _PATH_SEPARATOR_CHR)
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		return S_FALSE;
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	if (cchPath > (pszPathLength + 1))
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	{
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		pszPath[pszPathLength] = _PATH_SEPARATOR_CHR;
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		pszPath[pszPathLength + 1] = '\0';
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		return S_OK;
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	}
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	return HRESULT_FROM_WIN32(ERROR_INSUFFICIENT_BUFFER);
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}
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#endif
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/*
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#undef DEFINE_UNICODE
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#undef _PATH_SEPARATOR_CHR
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#undef PATH_CCH_ADD_SEPARATOR_EX
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*/