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當試圖從Outlook郵箱(沒有255最大長度的字符在路徑中)檢索一個海量文件夾路徑我似乎沒有被正確處理,但我已經嘗試了代碼上的一切,什麼也沒有似乎在這個問題上發出了一些亮光。WCHAR溢出時執行wcscpy_s
Path: \\Mailbox - long\Inbox\fgsegesgrgesrgegthtrhrthyerytyertytthgfhgdfhdfh\sfhsjkdfhsjkhfweuifhskjefhjksdhjsdhfusehfklahdfajkehwfuasdf\sadfhjaehjfhaeufhuaseh9oa3heufhshudhjksahdfjkshadmldhasnf\awefuyawefioaw3yfiuapgpapwqq0uwqfeiusdfsgpsadncabpaw\iawehfiowaeghuiaegfwuioaghpaweufrhasdfhlkasvjdhlaehfuawieghgawgwaef\fasbclajsbvbwaubhvwabveuabvdjklzbdvjkhzusefhzlhsdf\vshiuwhpqphdfhvjsamhashmasdfvhnakjdsfiawjeijfvsadkjfsa\aefrghjksadfhjklshareuhsadhsahvsandvnlsdffalsdfh384fhsduafhl\fasfdlashjklefrhuaehfskhaahsdfhuhaiyeifoa38fodasfhsahdfklkkasdf\jkfhsakdfjhsjkladfhdsjkahfjkajkflashdfjkshafjksahfsdjafhsdjahfjsahldfkasf\fauiwehfeawhfjkhsakjfhsjkaefheuifhjksdhjkafhjksadhfjhaseuhfasjhdjkfhasfjhaskjdfhslaf\jklshadjkfhasjkhfjkaheuyhruiyq3y83yuryvnzxcvxzcviouxzcvzxvklzxvkl
Path Length: 766 to 812 char
希望能解釋得更好一些,代碼;
if(....)
{
size_t n = wcslen(outlookFolderPath->Value.lpszW);
if(n < 100)
wcscpy_s(m_szInheritedFolderPath, outlookFolderPath->Value.lpszW);
else
{
WCHAR szTemp[2048] = {}, szText[2048]= {};
LoadStringW(ghInstDLL, IDS_PATH_TRUNCATED, szText, 2048);
swprintf_s(szTemp, szText, outlookFolderPath->Value.lpszW + ((n-80) * sizeof(WCHAR)));
wcscpy_s(m_szInheritedFolderPath, szTemp); // *** Dies Here ***
}
}
...
致命錯誤發生在string.h
行;
__DEFINE_CPP_OVERLOAD_SECURE_FUNC_0_1(errno_t, wcscpy_s, wchar_t, _Dest, _In_z_ const wchar_t *, _Source)