xref: /xnu-8792.61.2/libsyscall/mach/mig_reply_setup.c (revision 42e220869062b56f8d7d0726fd4c88954f87902c)
1*42e22086SApple OSS Distributions /*
2*42e22086SApple OSS Distributions  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3*42e22086SApple OSS Distributions  *
4*42e22086SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*42e22086SApple OSS Distributions  *
6*42e22086SApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*42e22086SApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*42e22086SApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*42e22086SApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*42e22086SApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*42e22086SApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*42e22086SApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
13*42e22086SApple OSS Distributions  * terms of an Apple operating system software license agreement.
14*42e22086SApple OSS Distributions  *
15*42e22086SApple OSS Distributions  * Please obtain a copy of the License at
16*42e22086SApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*42e22086SApple OSS Distributions  *
18*42e22086SApple OSS Distributions  * The Original Code and all software distributed under the License are
19*42e22086SApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*42e22086SApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*42e22086SApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*42e22086SApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*42e22086SApple OSS Distributions  * Please see the License for the specific language governing rights and
24*42e22086SApple OSS Distributions  * limitations under the License.
25*42e22086SApple OSS Distributions  *
26*42e22086SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*42e22086SApple OSS Distributions  */
28*42e22086SApple OSS Distributions /*
29*42e22086SApple OSS Distributions  * Mach Operating System
30*42e22086SApple OSS Distributions  * Copyright (c) 1991 Carnegie Mellon University
31*42e22086SApple OSS Distributions  * All Rights Reserved.
32*42e22086SApple OSS Distributions  *
33*42e22086SApple OSS Distributions  * Permission to use, copy, modify and distribute this software and its
34*42e22086SApple OSS Distributions  * documentation is hereby granted, provided that both the copyright
35*42e22086SApple OSS Distributions  * notice and this permission notice appear in all copies of the
36*42e22086SApple OSS Distributions  * software, derivative works or modified versions, and any portions
37*42e22086SApple OSS Distributions  * thereof, and that both notices appear in supporting documentation.
38*42e22086SApple OSS Distributions  *
39*42e22086SApple OSS Distributions  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
40*42e22086SApple OSS Distributions  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
41*42e22086SApple OSS Distributions  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
42*42e22086SApple OSS Distributions  *
43*42e22086SApple OSS Distributions  * Carnegie Mellon requests users of this software to return to
44*42e22086SApple OSS Distributions  *
45*42e22086SApple OSS Distributions  *  Software Distribution Coordinator  or  [email protected]
46*42e22086SApple OSS Distributions  *  School of Computer Science
47*42e22086SApple OSS Distributions  *  Carnegie Mellon University
48*42e22086SApple OSS Distributions  *  Pittsburgh PA 15213-3890
49*42e22086SApple OSS Distributions  *
50*42e22086SApple OSS Distributions  * any improvements or extensions that they make and grant Carnegie Mellon
51*42e22086SApple OSS Distributions  * the rights to redistribute these changes.
52*42e22086SApple OSS Distributions  */
53*42e22086SApple OSS Distributions 
54*42e22086SApple OSS Distributions /*
55*42e22086SApple OSS Distributions  * Routine to set up a MiG reply message from a request message.
56*42e22086SApple OSS Distributions  *
57*42e22086SApple OSS Distributions  * Knows about the MiG reply message ID convention:
58*42e22086SApple OSS Distributions  *	reply_id = request_id + 100
59*42e22086SApple OSS Distributions  *
60*42e22086SApple OSS Distributions  * For typed IPC sets up the RetCode type field.  Does NOT set a
61*42e22086SApple OSS Distributions  * return code value.
62*42e22086SApple OSS Distributions  */
63*42e22086SApple OSS Distributions 
64*42e22086SApple OSS Distributions #include <mach/mach.h>
65*42e22086SApple OSS Distributions #include <mach/message.h>
66*42e22086SApple OSS Distributions #include <mach/mig_errors.h>
67*42e22086SApple OSS Distributions 
68*42e22086SApple OSS Distributions void
mig_reply_setup(mach_msg_header_t * request,mach_msg_header_t * reply)69*42e22086SApple OSS Distributions mig_reply_setup(mach_msg_header_t *request, mach_msg_header_t *reply)
70*42e22086SApple OSS Distributions {
71*42e22086SApple OSS Distributions #define InP     (request)
72*42e22086SApple OSS Distributions #define OutP    ((mig_reply_error_t *) reply)
73*42e22086SApple OSS Distributions 
74*42e22086SApple OSS Distributions 	OutP->Head.msgh_bits =
75*42e22086SApple OSS Distributions 	    MACH_MSGH_BITS(MACH_MSGH_BITS_LOCAL(InP->msgh_bits), 0);
76*42e22086SApple OSS Distributions 	OutP->Head.msgh_size = sizeof(mig_reply_error_t);
77*42e22086SApple OSS Distributions 	OutP->Head.msgh_remote_port = InP->msgh_local_port;
78*42e22086SApple OSS Distributions 	OutP->Head.msgh_local_port  = MACH_PORT_NULL;
79*42e22086SApple OSS Distributions 	OutP->Head.msgh_id = InP->msgh_id + 100;
80*42e22086SApple OSS Distributions 	OutP->NDR = NDR_record;
81*42e22086SApple OSS Distributions }
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