Method Util_CopyFile

source/script_autoit.cpp:1537–1647

////////////////////////////////////////////////////////////////////////// Util_CopyFile() (moves files too) Returns the number of files that could not be copied or moved due to error. //////////////////////////////////////////////////////////////////////////

// Returns the number of files that could not be copied or moved due to error.
///////////////////////////////////////////////////////////////////////////////
int Line::Util_CopyFile(LPCTSTR szInputSource, LPCTSTR szInputDest, bool bOverwrite, bool bMove, DWORD &aLastError)
{
	TCHAR szSource[T_MAX_PATH];
	TCHAR szDest[T_MAX_PATH];
	TCHAR szDestPattern[MAX_PATH];

	// Get local version of our source/dest with full path names, strip trailing \s
	// and normalize the path separator (replace / with \).
	Util_GetFullPathName(szInputSource, szSource, _countof(szSource));
	Util_GetFullPathName(szInputDest, szDest, _countof(szDest));

	// If the source or dest is a directory then add *.* to the end
	if (Util_IsDir(szSource))
		_tcscat(szSource, _T("\\*.*"));
	if (Util_IsDir(szDest))
		_tcscat(szDest, _T("\\*.*"));

	WIN32_FIND_DATA	findData;
	HANDLE hSearch = FindFirstFile(szSource, &findData);
	if (hSearch == INVALID_HANDLE_VALUE)
	{
		aLastError = GetLastError(); // Set even in this case since FindFirstFile can fail due to actual errors, such as an invalid path.
		return StrChrAny(const_cast<LPTSTR>(szInputSource), _T("?*")) ? 0 : 1; // Indicate failure only if there were no wildcards.
	}
	aLastError = 0; // Set default. Overridden only when a failure occurs.

	// Otherwise, loop through all the matching files.

	// Locate the filename/pattern, which will be overwritten on each iteration.
	LPTSTR source_append_pos = _tcsrchr(szSource, '\\') + 1;
	LPTSTR dest_append_pos = _tcsrchr(szDest, '\\') + 1;
	size_t space_remaining = _countof(szSource) - (source_append_pos - szSource) - 1;

	// Copy destination filename or pattern, since it will be overwritten.
	tcslcpy(szDestPattern, dest_append_pos, _countof(szDestPattern));

	int failure_count = 0;
	LONG_OPERATION_INIT

	do
	{
		// Since other script threads can interrupt during LONG_OPERATION_UPDATE, it's important that
		// this function and those that call it not refer to sArgDeref[] and sArgVar[] anytime after an
		// interruption becomes possible. This is because an interrupting thread usually changes the
		// values to something inappropriate for this thread.
		LONG_OPERATION_UPDATE

		// Make sure the returned handle is a file and not a directory before we
		// try and do copy type things on it!
		if (findData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) // dwFileAttributes should never be invalid (0xFFFFFFFF) in this case.
			continue;

		if (_tcslen(findData.cFileName) > space_remaining) // v1.0.45.03: Basic check in case of files whose full spec is over 260 characters long.
		{
			aLastError = ERROR_BUFFER_OVERFLOW; // MSDN: "The file name is too long."
			++failure_count;
			continue;
		}