I am trying to use Winpcap (actually PacketCE but this does't change
anything in that case) to send a command to a wifi card.
I need to send a pOidData->Data buffer that is bigger than 1 char how can I
do that?
I have tryed to use a redefinition of that struct that allowed a pointer
instead of a fixed array and send it directly to the packet capture driver
(using DeviceIoControl) but it does't seem to work...
it is basicly a wrapper over the DeviceIoControl that i used before starting
using winpcap for that project but that i have adapted for use with
winpcap... This function work but in some case I have to pass some buffer to
lpOutBuffer but in that situation i am blocked to 1...
BOOL CWifi::MacIoctl(DWORD *lpInBuffer,VOID *lpOutBuffer,DWORD
nOutBufferSize,DWORD *lpBytesReturned){
BOOLEAN bRet;
PPACKET_OID_DATA pOidData;
ULONG IoCtlBufferLength = (sizeof (PACKET_OID_DATA) + nOutBufferSize);
bool write=FALSE;
pOidData =(PACKET_OID_DATA *) HeapAlloc (GetProcessHeap (),
HEAP_ZERO_MEMORY, IoCtlBufferLength);
pOidData->Oid = *lpInBuffer;
pOidData->Length = nOutBufferSize;
if(pOidData->Oid==OID_CW10_SETRID){
write=TRUE;
}else{
write=FALSE;
}
*((PULONG) pOidData->Data) = *(PULONG)lpOutBuffer;
bRet=DeviceIoControl(m_lpAdapter->hFile,(DWORD) write ? PIOC_SETOID :
PIOC_QUERYOID,
pOidData, sizeof(PACKET_OID_DATA) - 1 +
pOidData->Length,
pOidData, sizeof(PACKET_OID_DATA) - 1 +
pOidData->Length,
lpBytesReturned, NULL);
memcpy(lpOutBuffer,pOidData->Data,nOutBufferSize);
GlobalFreePtr (pOidData);
return bRet;
}
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