source: trunk/libs/newlib/src/newlib/libc/iconv/ces/ucs-4-internal.c @ 444

Last change on this file since 444 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc

File size: 3.6 KB
Line 
1/*
2 * Copyright (c) 2003-2004, Artem B. Bityuckiy
3 * Copyright (c) 1999,2000, Konstantin Chuguev. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26#include "cesbi.h"
27
28#if defined (ICONV_TO_UCS_CES_UCS_4_INTERNAL) \
29 || defined (ICONV_FROM_UCS_CES_UCS_4_INTERNAL)
30
31#include <_ansi.h>
32#include <reent.h>
33#include <stdlib.h>
34#include <string.h>
35#include <sys/types.h>
36#include "../lib/local.h"
37#include "../lib/ucsconv.h"
38#include "../lib/endian.h"
39
40/*
41 * Internal 4-byte representation of UCS-2 codes without restrictions and
42 * without BOM support.
43 */
44
45#if defined (ICONV_FROM_UCS_CES_UCS_4_INTERNAL)
46static size_t
47ucs_4_internal_convert_from_ucs (void *data,
48                                        register ucs4_t in,
49                                        unsigned char **outbuf,
50                                        size_t *outbytesleft)
51{
52  if (in > 0x7FFFFFFF)
53    return (size_t)ICONV_CES_INVALID_CHARACTER;
54   
55  if (*outbytesleft < sizeof (ucs4_t))
56    return (size_t)ICONV_CES_NOSPACE;
57
58  *((ucs4_t *)(*outbuf)) = in;
59  *outbytesleft -= sizeof (ucs4_t);
60  *outbuf += sizeof (ucs4_t);
61
62  return sizeof (ucs4_t);
63}
64#endif /* ICONV_FROM_UCS_CES_UCS_4_INTERNAL */
65
66#if defined (ICONV_TO_UCS_CES_UCS_4_INTERNAL)
67static ucs4_t
68ucs_4_internal_convert_to_ucs (void *data,
69                                      const unsigned char **inbuf,
70                                      size_t *inbytesleft)
71{
72  register ucs4_t res;
73
74  if (*inbytesleft < sizeof (ucs4_t))
75    return (ucs4_t)ICONV_CES_BAD_SEQUENCE;
76
77  res = *((ucs4_t *)(*inbuf));
78
79  if (res > 0x7FFFFFFF)
80    return (ucs4_t)ICONV_CES_INVALID_CHARACTER;
81   
82  *inbytesleft -= sizeof (ucs4_t);
83  *inbuf += sizeof (ucs4_t);
84 
85  return res;
86}
87#endif /* ICONV_TO_UCS_CES_UCS_4_INTERNAL */
88
89static int
90ucs_4_internal_get_mb_cur_max (void *data)
91{
92  return 2;
93}
94
95#if defined (ICONV_TO_UCS_CES_UCS_4_INTERNAL)
96const iconv_to_ucs_ces_handlers_t
97_iconv_to_ucs_ces_handlers_ucs_4_internal = 
98{
99  NULL,
100  NULL,
101  ucs_4_internal_get_mb_cur_max,
102  NULL,
103  NULL,
104  NULL,
105  ucs_4_internal_convert_to_ucs
106};
107#endif
108
109#if defined (ICONV_FROM_UCS_CES_UCS_4_INTERNAL)
110const iconv_from_ucs_ces_handlers_t
111_iconv_from_ucs_ces_handlers_ucs_4_internal =
112{
113  NULL,
114  NULL,
115  ucs_4_internal_get_mb_cur_max,
116  NULL,
117  NULL,
118  NULL,
119  ucs_4_internal_convert_from_ucs
120};
121#endif
122
123#endif /* ICONV_TO_UCS_CES_UCS_4_INTERNAL || ICONV_FROM_UCS_CES_UCS_4_INTERNAL */
124
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