Source to bsd/netat/adsp_Options.c

/*
 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
 * Reserved.  This file contains Original Code and/or Modifications of
 * Original Code as defined in and that are subject to the Apple Public
 * Source License Version 1.0 (the 'License').  You may not use this file
 * except in compliance with the License.  Please obtain a copy of the
 * License at http://www.apple.com/publicsource and read it before using
 * this file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License."
 * 
 * @APPLE_LICENSE_HEADER_END@
 */

#include	<adsp_local.h>


/*
 * dspOptions
 * 
 * INPUTS:
 * 	--> ccbRefNum		refnum of connection end
 *	--> sendBlocking	send blocking threshold
 *	--> sendTimer		send timer interval
 *	--> rtmtTimer		retransmit timer interval
 *	--> badSeqMax		retransmit advice send threshold
 *	--> useCheckSum		generate DDP checksum on internet packets
 *
 * OUTPUTS:
 *	none
 *
 * ERRORS:
 *	errRefNum		bad connection refnum
*/
int adspOptions(sp, pb)	/* (DSPPBPtr pb) */
    CCBPtr		sp;
    struct adspcmd *pb;
{
    OSErr err;
	
    if (sp == 0) {
	pb->ioResult = errRefNum; 
	return EINVAL;
    }
	
    if (pb->u.optionParams.sendBlocking)
	sp->sendBlocking = pb->u.optionParams.sendBlocking;

    if (pb->u.optionParams.sendTimer)
	sp->sendInterval = pb->u.optionParams.sendTimer;

    /* No longer allowed to set retransmit timer as of ADSP 1.5 */
    /* Use it to specify a command blocking request specific to MacOS
     * emulation. */
    if (pb->u.optionParams.rtmtTimer)
    	sp->delay = pb->u.optionParams.rtmtTimer;

    if (pb->u.optionParams.badSeqMax)
	sp->badSeqMax = pb->u.optionParams.badSeqMax;

    sp->useCheckSum = pb->u.optionParams.useCheckSum;
    if (pb->u.optionParams.newPID)
    	sp->pid = pb->u.optionParams.newPID;
    pb->ioResult = 0;
    adspioc_ack(0, pb->ioc, pb->gref);
    return 0;

}