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finish GetPEFileBit and GetBitByPEHeader #1

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finish GetPEFileBit and GetBitByPEHeader #1

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60 changes: 58 additions & 2 deletions Code/EnvironmentInformation.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@
// 2014/9/11 0.1 EvilKnight ����
// 2014/9/11 0.1 EvilKnight GeOSBit
// 2014/9/12 0.1 ray GetProcessBit()
// 2014/9/13 0.1 eoishf GetPEFileBit() GetBitByPEHeader()
// YYYY/MM/DD X.Y <���߻��޸�����> <�޸�����>
//
//*************************************************************************
Expand All @@ -21,6 +22,8 @@
#include <Psapi.h>
#include <tchar.h>
#include <strsafe.h>
#include <stdio.h>
#include <stdlib.h>
#pragma comment(lib, "psapi.lib")

typedef BOOL (WINAPI *LPFN_ISWOW64PROCESS) (HANDLE, PBOOL);
Expand Down Expand Up @@ -142,7 +145,44 @@ ULONG GetMyselfBit(VOID)
*******************************************************************************/
ULONG GetPEFileBit(__in_z CONST PTCHAR pPEFilePath)
{
return 0 ;
FILE *peFile = NULL;
_wfopen_s(&peFile, pPEFilePath, L"rb");
if (NULL == peFile)
{
fclose(peFile);
return 0;
}

PIMAGE_DOS_HEADER pDosHeader = (PIMAGE_DOS_HEADER)malloc(sizeof(IMAGE_DOS_HEADER));
if (NULL == pDosHeader)
{
OutputErrorInformation(L"malloc", L"malloc failed");
return 0;
}

//��ȡPE�ļ���DOSͷ
fread(pDosHeader, sizeof(IMAGE_DOS_HEADER), 1, peFile);
if (pDosHeader->e_magic != IMAGE_DOS_SIGNATURE)
{
fclose(peFile);
return 0;
}

//���ļ�ָ��ƫ�Ƶ�PEͷ��
fseek(peFile, pDosHeader->e_lfanew, SEEK_SET);
free(pDosHeader);

IMAGE_NT_HEADERS imageNtHeaders;
//��ȡPEͷ
fread(&imageNtHeaders, sizeof(IMAGE_NT_HEADERS), 1, peFile);
if (imageNtHeaders.Signature != IMAGE_NT_SIGNATURE)
{
fclose(peFile);
return 0;
}
fclose(peFile);

return GetBitByPEHeader(&imageNtHeaders, sizeof(IMAGE_NT_HEADERS));
}

/*******************************************************************************
Expand All @@ -158,7 +198,23 @@ ULONG GetPEFileBit(__in_z CONST PTCHAR pPEFilePath)
ULONG GetBitByPEHeader(__in_bcount(uSize) CONST PVOID pPE,
__in CONST ULONG uSize)
{
// ����ͨ��IMAGE_NT_OPTIONAL_HDR_MAGIC���ж�
if (NULL == pPE)
{
return 0;
}

IMAGE_NT_HEADERS *pNtHeader = (IMAGE_NT_HEADERS *)pPE;
if (pNtHeader->FileHeader.Machine == IMAGE_NT_OPTIONAL_HDR32_MAGIC)
{
return 32;
}

if (pNtHeader->FileHeader.Machine == IMAGE_NT_OPTIONAL_HDR64_MAGIC)
{
return 64;
}

//���ΪIMAGE_ROM_OPTIONAL_HDR_MAGIC������0
return 0 ;
}

Expand Down