xref: /freebsd/include/iconv.h (revision b0d29bc47dba79f6f38e67eabadfb4b32ffd9390)
1 /*	$FreeBSD$	*/
2 /*	$NetBSD: iconv.h,v 1.6 2005/02/03 04:39:32 perry Exp $	*/
3 
4 /*-
5  * SPDX-License-Identifier: BSD-2-Clause
6  *
7  * Copyright (c) 2003 Citrus Project,
8  * Copyright (c) 2009, 2010 Gabor Kovesdan <gabor@FreeBSD.org>
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30  * SUCH DAMAGE.
31  *
32  */
33 
34 #ifndef _ICONV_H_
35 #define _ICONV_H_
36 
37 #include <sys/cdefs.h>
38 #include <sys/types.h>
39 
40 #include <wchar.h>
41 
42 #include <sys/cdefs.h>
43 #include <sys/types.h>
44 
45 #ifdef __cplusplus
46 typedef	bool	__iconv_bool;
47 #elif __STDC_VERSION__ >= 199901L
48 typedef	_Bool	__iconv_bool;
49 #else
50 typedef	int	__iconv_bool;
51 #endif
52 
53 struct __tag_iconv_t;
54 typedef	struct __tag_iconv_t	*iconv_t;
55 
56 __BEGIN_DECLS
57 iconv_t	iconv_open(const char *, const char *);
58 size_t	iconv(iconv_t, char ** __restrict,
59 	      size_t * __restrict, char ** __restrict,
60 	      size_t * __restrict);
61 int	iconv_close(iconv_t);
62 /*
63  * non-portable interfaces for iconv
64  */
65 int	__iconv_get_list(char ***, size_t *, __iconv_bool);
66 void	__iconv_free_list(char **, size_t);
67 size_t	__iconv(iconv_t, char **, size_t *, char **,
68 		     size_t *, __uint32_t, size_t *);
69 #define __ICONV_F_HIDE_INVALID	0x0001
70 
71 /*
72  * GNU interfaces for iconv
73  */
74 typedef struct {
75 	void	*spaceholder[64];
76 } iconv_allocation_t;
77 
78 int	 iconv_open_into(const char *, const char *, iconv_allocation_t *);
79 void	 iconv_set_relocation_prefix(const char *, const char *);
80 
81 /*
82  * iconvctl() request macros
83  */
84 #define ICONV_TRIVIALP		0
85 #define	ICONV_GET_TRANSLITERATE	1
86 #define	ICONV_SET_TRANSLITERATE	2
87 #define ICONV_GET_DISCARD_ILSEQ	3
88 #define ICONV_SET_DISCARD_ILSEQ	4
89 #define ICONV_SET_HOOKS		5
90 #define ICONV_SET_FALLBACKS	6
91 #define ICONV_GET_ILSEQ_INVALID	128
92 #define ICONV_SET_ILSEQ_INVALID	129
93 
94 typedef void (*iconv_unicode_char_hook) (unsigned int mbr, void *data);
95 typedef void (*iconv_wide_char_hook) (wchar_t wc, void *data);
96 
97 struct iconv_hooks {
98 	iconv_unicode_char_hook		 uc_hook;
99 	iconv_wide_char_hook		 wc_hook;
100 	void				*data;
101 };
102 
103 /*
104  * Fallbacks aren't supported but type definitions are provided for
105  * source compatibility.
106  */
107 typedef void (*iconv_unicode_mb_to_uc_fallback) (const char*,
108 		size_t, void (*write_replacement) (const unsigned int *,
109 		size_t, void*),	void*, void*);
110 typedef void (*iconv_unicode_uc_to_mb_fallback) (unsigned int,
111 		void (*write_replacement) (const char *, size_t, void*),
112 		void*, void*);
113 typedef void (*iconv_wchar_mb_to_wc_fallback) (const char*, size_t,
114 		void (*write_replacement) (const wchar_t *, size_t, void*),
115 		void*, void*);
116 typedef void (*iconv_wchar_wc_to_mb_fallback) (wchar_t,
117 		void (*write_replacement) (const char *, size_t, void*),
118 		void*, void*);
119 
120 struct iconv_fallbacks {
121 	iconv_unicode_mb_to_uc_fallback	 mb_to_uc_fallback;
122 	iconv_unicode_uc_to_mb_fallback  uc_to_mb_fallback;
123 	iconv_wchar_mb_to_wc_fallback	 mb_to_wc_fallback;
124 	iconv_wchar_wc_to_mb_fallback	 wc_to_mb_fallback;
125 	void				*data;
126 };
127 
128 
129 void		 iconvlist(int (*do_one) (unsigned int, const char * const *,
130 		    void *), void *);
131 const char	*iconv_canonicalize(const char *);
132 int		 iconvctl(iconv_t, int, void *);
133 __END_DECLS
134 
135 #endif /* !_ICONV_H_ */
136