mach.subproj/mig_reply_setup.c

   1 /*
   2  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * Mach Operating System
  24  * Copyright (c) 1991 Carnegie Mellon University
  25  * All Rights Reserved.
  26  *
  27  * Permission to use, copy, modify and distribute this software and its
  28  * documentation is hereby granted, provided that both the copyright
  29  * notice and this permission notice appear in all copies of the
  30  * software, derivative works or modified versions, and any portions
  31  * thereof, and that both notices appear in supporting documentation.
  32  *
  33  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  34  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  35  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  36  *
  37  * Carnegie Mellon requests users of this software to return to
  38  *
  39  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  40  *  School of Computer Science
  41  *  Carnegie Mellon University
  42  *  Pittsburgh PA 15213-3890
  43  *
  44  * any improvements or extensions that they make and grant Carnegie Mellon
  45  * the rights to redistribute these changes.
  46  */
  47
  48 /*
  49  * Routine to set up a MiG reply message from a request message.
  50  *
  51  * Knows about the MiG reply message ID convention:
  52  *      reply_id = request_id + 100
  53  *
  54  * For typed IPC sets up the RetCode type field.  Does NOT set a
  55  * return code value.
  56  */
  57
  58 #include <mach/mach.h>
  59 #include <mach/message.h>
  60 #include <mach/mig_errors.h>
  61
  62 void
  63 mig_reply_setup(mach_msg_header_t *request, mach_msg_header_t *reply)
  64 {
  65 #define InP     (request)
  66 #define OutP    ((mig_reply_error_t *) reply)
  67
  68         OutP->Head.msgh_bits =
  69                 MACH_MSGH_BITS(MACH_MSGH_BITS_LOCAL(InP->msgh_bits), 0);
  70         OutP->Head.msgh_size = sizeof(mig_reply_error_t);
  71         OutP->Head.msgh_remote_port = InP->msgh_local_port;
  72         OutP->Head.msgh_local_port  = MACH_PORT_NULL;
  73         OutP->Head.msgh_id = InP->msgh_id + 100;
  74         OutP->NDR = NDR_record;
  75 }