帮忙看看这段程序需要建立mfc的哪种工程！

netreptile 2006-05-29 02:54:25

ipfilter.dll

#define UNICODE
#define _UNICODE

#include <ws2spi.h>
#include <tchar.h>

GUID filterguid={0x4d1e91fd,0x116a,0x44aa,{0x8f,0xd4,0x1d,0x2c,0xf2,0x7b,0xd9,0xa9}};

LPWSAPROTOCOL_INFOW protoinfo=NULL;
WSPPROC_TABLE nextproctable;
DWORD protoinfosize=0;
int totalprotos=0;

BOOL getfilter()
{
int errorcode;

protoinfo=NULL;
protoinfosize=0;
totalprotos=0;

if(WSCEnumProtocols(NULL,protoinfo,&protoinfosize,&errorcode)==SOCKET_ERROR)
{
if(errorcode!=WSAENOBUFS)
{
OutputDebugString(_T("First WSCEnumProtocols Error!"));
return FALSE;
}
}

if((protoinfo=(LPWSAPROTOCOL_INFOW)GlobalAlloc(GPTR,protoinfosize))==NULL)
{
OutputDebugString(_T("GlobalAlloc Error!"));
return FALSE;
}

if((totalprotos=WSCEnumProtocols(NULL,protoinfo,&protoinfosize,&errorcode))==SOCKET_ERROR)
{
OutputDebugString(_T("Second WSCEnumProtocols Error!"));
return FALSE;
}

return TRUE;
}

void freefilter()
{
GlobalFree(protoinfo);
}

BOOL WINAPI DllMain(HINSTANCE hmodule,
DWORD reason,
LPVOID lpreserved)
{
TCHAR processname[MAX_PATH];
TCHAR showmessage[MAX_PATH+25];

if(reason==DLL_PROCESS_ATTACH)
{
GetModuleFileName(NULL,processname,MAX_PATH);
_tcscpy(showmessage,processname);
_tcscat(showmessage,_T(" Loading IPFilter ..."));
OutputDebugString(showmessage);
}
return TRUE;
}

int WSPAPI WSPSendTo(SOCKET s,
LPWSABUF lpbuffer,
DWORD dwbuffercount,
LPDWORD lpnumberofbytessent,
DWORD dwflags,
const struct sockaddr FAR *lpto,
int itolen,
LPWSAOVERLAPPED lpoverlapped,
LPWSAOVERLAPPED_COMPLETION_ROUTINE lpcompletionroutine,
LPWSATHREADID lpthreadid,
LPINT lperrno)
{

struct sockaddr_in sin;

sin=*(const struct sockaddr_in *)lpto;
if(sin.sin_port==htons(8000))
{
OutputDebugString(_T("WSPSendTo Tencent Filtered"));
return 0;
}
else
{
return nextproctable.lpWSPSendTo(s,lpbuffer,dwbuffercount,lpnumberofbytessent,dwflags,lpto,itolen,lpoverlapped,lpcompletionroutine,lpthreadid,lperrno);
}
}

int WSPAPI WSPStartup(
WORD wversionrequested,
LPWSPDATA lpwspdata,
LPWSAPROTOCOL_INFOW lpprotoinfo,
WSPUPCALLTABLE upcalltable,
LPWSPPROC_TABLE lpproctable
)
{
OutputDebugString(_T("IPFilter WSPStartup ..."));

int i;
int errorcode;
int filterpathlen;
DWORD layerid=0;
DWORD nextlayerid=0;
TCHAR *filterpath;
HINSTANCE hfilter;
LPWSPSTARTUP wspstartupfunc=NULL;

if(lpprotoinfo->ProtocolChain.ChainLen<=1)
{
OutputDebugString(_T("ChainLen<=1"));
return FALSE;
}

getfilter();

for(i=0;i<totalprotos;i++)
{
if(memcmp(&protoinfo[i].ProviderId,&filterguid,sizeof(GUID))==0)
{
layerid=protoinfo[i].dwCatalogEntryId;
break;
}
}

for(i=0;i<lpprotoinfo->ProtocolChain.ChainLen;i++)
{
if(lpprotoinfo->ProtocolChain.ChainEntries[i]==layerid)
{
nextlayerid=lpprotoinfo->ProtocolChain.ChainEntries[i+1];
break;
}
}

filterpathlen=MAX_PATH;
filterpath=(TCHAR*)GlobalAlloc(GPTR,filterpathlen);
for(i=0;i<totalprotos;i++)
{
if(nextlayerid==protoinfo[i].dwCatalogEntryId)
{
if(WSCGetProviderPath(&protoinfo[i].ProviderId,filterpath,&filterpathlen,&errorcode)==SOCKET_ERROR)
{
OutputDebugString(_T("WSCGetProviderPath Error!"));
return WSAEPROVIDERFAILEDINIT;
}
break;
}
}

if(!ExpandEnvironmentStrings(filterpath,filterpath,MAX_PATH))
{
OutputDebugString(_T("ExpandEnvironmentStrings Error!"));
return WSAEPROVIDERFAILEDINIT;
}

if((hfilter=LoadLibrary(filterpath))==NULL)
{
OutputDebugString(_T("LoadLibrary Error!"));
return WSAEPROVIDERFAILEDINIT;
}

if((wspstartupfunc=(LPWSPSTARTUP)GetProcAddress(hfilter,"WSPStartup"))==NULL)
{
OutputDebugString(_T("GetProcessAddress Error!"));
return WSAEPROVIDERFAILEDINIT;
}

if((errorcode=wspstartupfunc(wversionrequested,lpwspdata,lpprotoinfo,upcalltable,lpproctable))!=ERROR_SUCCESS)
{
OutputDebugString(_T("wspstartupfunc Error!"));
return errorcode;
}

nextproctable=*lpproctable;
lpproctable->lpWSPSendTo=WSPSendTo;

freefilter();
return 0;
}
这需要建立mfc的什么工程啊？谢谢指教

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