windows-server-2003/printscan/faxsrv/provider/t30/main/protapi.c

/***************************************************************************
 Name     :     PROTHELP.C
 Comment  :     Protocol Initialization & helper functions
 Functions:     (see Prototypes just below)

        Copyright (c) 1993 Microsoft Corp.

 Revision Log
 Date     Name  Description
 -------- ----- ---------------------------------------------------------
***************************************************************************/
#define USE_DEBUG_CONTEXT   DEBUG_CONTEXT_T30_MAIN

#include "prep.h"
#include "efaxcb.h"
#include "protocol.h"
#include "glbproto.h"


// This function get the capabilities of the fax. 
// We are calling this function when we want to receive a fax, with type SEND_CAPS 
// (before we answer the call)
// and with the information in pTG->ProtInst.SendCaps we make the DIS.

BOOL ProtGetBC(PThrdGlbl pTG, BCTYPE bctype)
{
    LPBC lpbc;
    USHORT uSpace;

    DEBUG_FUNCTION_NAME(_T("ProtGetBC"));

    DebugPrintEx(DEBUG_MSG,"In ProtGetBC: bctype=%d", bctype);

    lpbc = ICommGetBC(pTG, bctype);

    if(lpbc)
    {
        switch(bctype)
        {
        case SEND_CAPS:
                uSpace = sizeof(pTG->ProtInst.SendCaps);
                if(lpbc->wTotalSize > uSpace)
                        goto nospace;
                // Here we actually take the send-caps and copy it 
                // from pTG->Inst.SendCaps **to** pTG->ProtInst.SendCaps
                _fmemcpy(&pTG->ProtInst.SendCaps, lpbc, lpbc->wTotalSize); 
                pTG->ProtInst.fSendCapsInited = TRUE;
                break;
        case SEND_PARAMS:
                if(lpbc->bctype == SEND_PARAMS)
                {   
                    uSpace = sizeof(pTG->ProtInst.SendParams);
                    if(lpbc->wTotalSize > uSpace)
                            goto nospace;
                    // Here we actually take the send-caps and copy it 
                    // from pTG->Inst->SendParams **to** pTG->ProtInst.SendParams
                    _fmemcpy(&pTG->ProtInst.SendParams, lpbc, lpbc->wTotalSize);
                    pTG->ProtInst.fSendParamsInited = TRUE;
                }
                else
                {

                    uSpace = sizeof(pTG->ProtInst.SendParams);
                    if(lpbc->wTotalSize > uSpace)
                            goto nospace;
                    pTG->ProtInst.fSendParamsInited = TRUE;
                }

                break;
        default:
                goto error;
                break;
        }
        return TRUE;
    }
    else
    {
        DebugPrintEx(DEBUG_WRN,"Ex bctype=%d --> FAILED", bctype);
        return FALSE;
    }
nospace:
    DebugPrintEx(   DEBUG_ERR,
                    "BC too big size=%d space=%d",
                    lpbc->wTotalSize, 
                    uSpace);
error:

    DebugPrintEx(DEBUG_WRN,"ATTENTION: pTG->ProtInst.fAbort = TRUE");
    pTG->ProtInst.fAbort = TRUE;
    return FALSE;
}

#define SetupLL(npll, B, M)             \
        (((npll)->Baud=(BYTE)(B)), ((npll)->MinScan=(BYTE)(M)) )

BOOL WINAPI ET30ProtSetProtParams
(
    PThrdGlbl pTG, 
    LPPROTPARAMS lp, 
    USHORT uSendSpeeds, 
    USHORT uRecvSpeeds
)
{

    DEBUG_FUNCTION_NAME(_T("ET30ProtSetProtParams"));

    _fmemcpy(&pTG->ProtParams, lp, min(sizeof(pTG->ProtParams), lp->uSize));

    // Hardware params
    SetupLL(&(pTG->ProtInst.llSendCaps), uRecvSpeeds, lp->uMinScan);

    pTG->ProtInst.fllSendCapsInited = TRUE;

    SetupLL(&(pTG->ProtInst.llSendParams), uSendSpeeds, MINSCAN_0_0_0);
    pTG->ProtInst.fllSendParamsInited = TRUE;

    if(lp->HighestSendSpeed && lp->HighestSendSpeed != 0xFFFF)
    {
        pTG->ProtInst.HighestSendSpeed = lp->HighestSendSpeed;
    }
    else
    {
        pTG->ProtInst.HighestSendSpeed = 0;
    }

    if(lp->LowestSendSpeed && lp->LowestSendSpeed != 0xFFFF)
    {
        pTG->ProtInst.LowestSendSpeed = lp->LowestSendSpeed;
    }
    else
    {
        pTG->ProtInst.LowestSendSpeed = 0;
    }

    DebugPrintEx(DEBUG_MSG,"Done with HW caps (recv, send)");
    // OK to print -- not online
    D_PrintBC("Recv HWCaps", &(pTG->ProtInst.llSendCaps));
    D_PrintBC("Send HWCaps", &(pTG->ProtInst.llSendParams));
    DebugPrintEx(   DEBUG_MSG, 
                    "Highest=%d Lowest=%d",
                    pTG->ProtInst.HighestSendSpeed, 
                    pTG->ProtInst.LowestSendSpeed);

    return TRUE;
}


void D_PrintBC(LPSTR szll, LPLLPARAMS lpll)
{
    DEBUG_FUNCTION_NAME(_T("D_PrintBC"));
    if(lpll)
    {
        DebugPrintEx(   DEBUG_MSG,
                        "%s: Baud=%x MinScan=%x",
                        (LPSTR)szll,
                        lpll->Baud, 
                        lpll->MinScan);
    }
}