xref: /freebsd/include/iconv.h (revision f126890ac5386406dadf7c4cfa9566cbb56537c5)
1 /*	$NetBSD: iconv.h,v 1.6 2005/02/03 04:39:32 perry Exp $	*/
2 
3 /*-
4  * SPDX-License-Identifier: BSD-2-Clause
5  *
6  * Copyright (c) 2003 Citrus Project,
7  * Copyright (c) 2009, 2010 Gabor Kovesdan <gabor@FreeBSD.org>
8  * All rights reserved.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  *
31  */
32 
33 #ifndef _ICONV_H_
34 #define _ICONV_H_
35 
36 #include <sys/types.h>
37 
38 #include <wchar.h>
39 
40 #include <sys/types.h>
41 
42 #ifdef __cplusplus
43 typedef	bool	__iconv_bool;
44 #elif __STDC_VERSION__ >= 199901L
45 typedef	_Bool	__iconv_bool;
46 #else
47 typedef	int	__iconv_bool;
48 #endif
49 
50 struct __tag_iconv_t;
51 typedef	struct __tag_iconv_t	*iconv_t;
52 
53 __BEGIN_DECLS
54 iconv_t	iconv_open(const char *, const char *);
55 size_t	iconv(iconv_t, char ** __restrict,
56 	      size_t * __restrict, char ** __restrict,
57 	      size_t * __restrict);
58 int	iconv_close(iconv_t);
59 /*
60  * non-portable interfaces for iconv
61  */
62 int	__iconv_get_list(char ***, size_t *, __iconv_bool);
63 void	__iconv_free_list(char **, size_t);
64 size_t	__iconv(iconv_t, char **, size_t *, char **,
65 		     size_t *, __uint32_t, size_t *);
66 #define __ICONV_F_HIDE_INVALID	0x0001
67 
68 /*
69  * GNU interfaces for iconv
70  */
71 typedef struct {
72 	void	*spaceholder[64];
73 } iconv_allocation_t;
74 
75 int	 iconv_open_into(const char *, const char *, iconv_allocation_t *);
76 void	 iconv_set_relocation_prefix(const char *, const char *);
77 
78 /*
79  * iconvctl() request macros
80  */
81 #define ICONV_TRIVIALP		0
82 #define	ICONV_GET_TRANSLITERATE	1
83 #define	ICONV_SET_TRANSLITERATE	2
84 #define ICONV_GET_DISCARD_ILSEQ	3
85 #define ICONV_SET_DISCARD_ILSEQ	4
86 #define ICONV_SET_HOOKS		5
87 #define ICONV_SET_FALLBACKS	6
88 #define ICONV_GET_ILSEQ_INVALID	128
89 #define ICONV_SET_ILSEQ_INVALID	129
90 
91 typedef void (*iconv_unicode_char_hook) (unsigned int mbr, void *data);
92 typedef void (*iconv_wide_char_hook) (wchar_t wc, void *data);
93 
94 struct iconv_hooks {
95 	iconv_unicode_char_hook		 uc_hook;
96 	iconv_wide_char_hook		 wc_hook;
97 	void				*data;
98 };
99 
100 /*
101  * Fallbacks aren't supported but type definitions are provided for
102  * source compatibility.
103  */
104 typedef void (*iconv_unicode_mb_to_uc_fallback) (const char*,
105 		size_t, void (*write_replacement) (const unsigned int *,
106 		size_t, void*),	void*, void*);
107 typedef void (*iconv_unicode_uc_to_mb_fallback) (unsigned int,
108 		void (*write_replacement) (const char *, size_t, void*),
109 		void*, void*);
110 typedef void (*iconv_wchar_mb_to_wc_fallback) (const char*, size_t,
111 		void (*write_replacement) (const wchar_t *, size_t, void*),
112 		void*, void*);
113 typedef void (*iconv_wchar_wc_to_mb_fallback) (wchar_t,
114 		void (*write_replacement) (const char *, size_t, void*),
115 		void*, void*);
116 
117 struct iconv_fallbacks {
118 	iconv_unicode_mb_to_uc_fallback	 mb_to_uc_fallback;
119 	iconv_unicode_uc_to_mb_fallback  uc_to_mb_fallback;
120 	iconv_wchar_mb_to_wc_fallback	 mb_to_wc_fallback;
121 	iconv_wchar_wc_to_mb_fallback	 wc_to_mb_fallback;
122 	void				*data;
123 };
124 
125 
126 void		 iconvlist(int (*do_one) (unsigned int, const char * const *,
127 		    void *), void *);
128 const char	*iconv_canonicalize(const char *);
129 int		 iconvctl(iconv_t, int, void *);
130 __END_DECLS
131 
132 #endif /* !_ICONV_H_ */
133