根据PE文件信息获得文件大小

//根据PE文件信息，计算各块大小和 ULONG GetFileLen(LPVOID pBaseaddr,LPVOID pReadBuf) { LPBYTE pBase=(LPBYTE)pBaseaddr; PIMAGE_DOS_HEADER pDosHeader=(PIMAGE_DOS_HEADER)pReadBuf; ULONG uSize=PIMAGE_OPTIONAL_HEADER((pBase+pDosHeader->e_lfanew+4+20))->SizeOfHeaders; PIMAGE_SECTION_HEADER pSec = (PIMAGE_SECTION_HEADER)(pBase+pDosHeader->e_lfanew + sizeof(IMAGE_NT_HEADERS)); for(int i=0;i<PIMAGE_FILE_HEADER(pBase+pDosHeader->e_lfanew+4)->NumberOfSections;++i) { uSize+=pSec[i].SizeOfRawData; } return uSize; }