1 /*	$NetBSD: citrus_mapper_none.c,v 1.2 2003/06/27 17:53:31 tshiozak Exp $	*/
2 
3 /*-
4  * SPDX-License-Identifier: BSD-2-Clause
5  *
6  * Copyright (c)2003 Citrus Project,
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30 
31 #include <sys/cdefs.h>
32 #include <sys/queue.h>
33 
34 #include <assert.h>
35 #include <errno.h>
36 #include <stdlib.h>
37 #include <string.h>
38 
39 #include "citrus_namespace.h"
40 #include "citrus_types.h"
41 #include "citrus_module.h"
42 #include "citrus_hash.h"
43 #include "citrus_mapper.h"
44 #include "citrus_mapper_none.h"
45 
46 /* ---------------------------------------------------------------------- */
47 
48 _CITRUS_MAPPER_DECLS(mapper_none);
49 _CITRUS_MAPPER_DEF_OPS(mapper_none);
50 
51 
52 /* ---------------------------------------------------------------------- */
53 
54 int
55 _citrus_mapper_none_mapper_getops(struct _citrus_mapper_ops *ops)
56 {
57 
58 	memcpy(ops, &_citrus_mapper_none_mapper_ops,
59 	    sizeof(_citrus_mapper_none_mapper_ops));
60 
61 	return (0);
62 }
63 
64 static int
65 /*ARGSUSED*/
66 _citrus_mapper_none_mapper_init(struct _citrus_mapper_area *__restrict ma __unused,
67     struct _citrus_mapper * __restrict cm, const char * __restrict dir __unused,
68     const void * __restrict var __unused, size_t lenvar __unused,
69     struct _citrus_mapper_traits * __restrict mt, size_t lenmt)
70 {
71 
72 	if (lenmt < sizeof(*mt))
73 		return (EINVAL);
74 
75 	cm->cm_closure = NULL;
76 	mt->mt_src_max = mt->mt_dst_max = 1;	/* 1:1 converter */
77 	mt->mt_state_size = 0;			/* stateless */
78 
79 	return (0);
80 }
81 
82 static void
83 /*ARGSUSED*/
84 _citrus_mapper_none_mapper_uninit(struct _citrus_mapper *cm __unused)
85 {
86 
87 }
88 
89 static int
90 /*ARGSUSED*/
91 _citrus_mapper_none_mapper_convert(struct _citrus_mapper * __restrict cm __unused,
92     _citrus_index_t * __restrict dst, _citrus_index_t src,
93     void * __restrict ps __unused)
94 {
95 
96 	*dst = src;
97 	return (_CITRUS_MAPPER_CONVERT_SUCCESS);
98 }
99 
100 static void
101 /*ARGSUSED*/
102 _citrus_mapper_none_mapper_init_state(void)
103 {
104 
105 }
106