at_abort.c   [plain text]


/*
 * 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@
 */
/*
 *	Copyright (c) 1988 - 1994 Apple Computer, Inc. 
 *
 *	The information contained herein is subject to change without
 *	notice and  should not be  construed as a commitment by Apple
 *	Computer, Inc. Apple Computer, Inc. assumes no responsibility
 *	for any errors that may appear.
 *
 *	Confidential and Proprietary to Apple Computer, Inc.
 */

#include <netat/appletalk.h>
#include <netat/ddp.h>
#include <netat/atp.h>

#include "at_proto.h"

int
atp_abort (fd,dest,tid)
	int		fd;
	at_inet_t 	*dest;
	u_short		tid;
{
	int len;
	unsigned int tr_tid;
	at_ddp_t *ddp;
	at_atp_t  *atp;
	char buff[TOTAL_ATP_HDR_SIZE];

  if (dest != (at_inet_t *)0) {
	/*
	 *	abort an ATP reponse transaction
	 */
	ddp = (at_ddp_t *)buff;
	*(u_short *)&ddp->src_net = *(u_short *)&dest->net;
	ddp->src_node = dest->node;
	ddp->src_socket = dest->socket;
	atp = ATP_ATP_HDR(ddp);
	*(u_short *)&atp->tid = tid;
	len = sizeof(buff);
	return at_send_to_dev(fd, AT_ATP_RELEASE_RESPONSE, buff, &len);

  } else {
	/*
	 *	abort an ATP request transaction
	 */
	tr_tid = (unsigned int)tid;
	len = sizeof(tr_tid);
	return at_send_to_dev(fd, AT_ATP_CANCEL_REQUEST, &tr_tid, &len);
  }
}