Method Read

lib_fiber/cpp/src/detours/image.cpp:1023–1332

}

BOOL CImage::Read(HANDLE hFile)
{
    DWORD n;
    PBYTE pbData = NULL;
    DWORD cbData = 0;

    if (hFile == INVALID_HANDLE_VALUE) {
        SetLastError(ERROR_INVALID_HANDLE);
        return FALSE;
    }

    ///////////////////////////////////////////////////////// Create mapping.
    //
    m_nFileSize = GetFileSize(hFile, NULL);
    if (m_nFileSize == (DWORD)-1) {
        return FALSE;
    }

    m_hMap = CreateFileMappingW(hFile, NULL, PAGE_READONLY, 0, 0, NULL);
    if (m_hMap == NULL) {
        return FALSE;
    }

    m_pMap = (PBYTE)MapViewOfFileEx(m_hMap, FILE_MAP_READ, 0, 0, 0, NULL);
    if (m_pMap == NULL) {
        return FALSE;
    }

    ////////////////////////////////////////////////////// Process DOS Header.
    //
    PIMAGE_DOS_HEADER pDosHeader = (PIMAGE_DOS_HEADER)m_pMap;
    if (pDosHeader->e_magic != IMAGE_DOS_SIGNATURE) {
        SetLastError(ERROR_BAD_EXE_FORMAT);
        return FALSE;
    }
    m_nPeOffset = pDosHeader->e_lfanew;
    m_nPrePE = 0;
    m_cbPrePE = QuadAlign(pDosHeader->e_lfanew);

    if (m_nPeOffset > m_nFileSize ||
        m_nPeOffset + sizeof(m_NtHeader) > m_nFileSize) {

        SetLastError(ERROR_BAD_EXE_FORMAT);
        return FALSE;
    }

    CopyMemory(&m_DosHeader, m_pMap + m_nPrePE, sizeof(m_DosHeader));

    /////////////////////////////////////////////////////// Process PE Header.
    //
    CopyMemory(&m_NtHeader, m_pMap + m_nPeOffset, sizeof(m_NtHeader));
    if (m_NtHeader.Signature != IMAGE_NT_SIGNATURE) {
        SetLastError(ERROR_INVALID_EXE_SIGNATURE);
        return FALSE;
    }
    if (m_NtHeader.FileHeader.SizeOfOptionalHeader == 0) {
        SetLastError(ERROR_EXE_MARKED_INVALID);
        return FALSE;