xref: /freebsd/include/iconv.h (revision 87c1627502a5dde91e5284118eec8682b60f27a2)
1 /*	$FreeBSD$	*/
2 /*	$NetBSD: iconv.h,v 1.6 2005/02/03 04:39:32 perry Exp $	*/
3 
4 /*-
5  * Copyright (c) 2003 Citrus Project,
6  * Copyright (c) 2009, 2010 Gabor Kovesdan <gabor@FreeBSD.org>
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 
32 #ifndef _ICONV_H_
33 #define _ICONV_H_
34 
35 #include <sys/cdefs.h>
36 #include <sys/types.h>
37 
38 #include <stdbool.h>
39 #include <wchar.h>
40 
41 #include <sys/cdefs.h>
42 #include <sys/types.h>
43 
44 #define iconv_open		libiconv_open
45 #define iconv_close		libiconv_close
46 #define iconv(cd, in, insize, out, outsize)	libiconv(cd, __DECONST(char **, in), insize, out, outsize)
47 #define iconv_t			libiconv_t
48 
49 struct __tag_iconv_t;
50 typedef	struct __tag_iconv_t	*iconv_t;
51 
52 __BEGIN_DECLS
53 iconv_t	libiconv_open(const char *, const char *);
54 size_t	libiconv(iconv_t, char ** __restrict,
55 		     size_t * __restrict, char ** __restrict,
56 		     size_t * __restrict);
57 int	libiconv_close(iconv_t);
58 /*
59  * non-portable interfaces for iconv
60  */
61 int	__iconv_get_list(char ***, size_t *, bool);
62 void	__iconv_free_list(char **, size_t);
63 size_t	__iconv(iconv_t, char **, size_t *, char **,
64 		     size_t *, __uint32_t, size_t *);
65 #define __ICONV_F_HIDE_INVALID	0x0001
66 
67 /*
68  * GNU interfaces for iconv
69  */
70 #define iconv_open_into		libiconv_open_into
71 #define iconvctl		libiconvctl
72 #define iconvlist		libiconvlist
73 
74 /* We have iconvctl() */
75 #define _LIBICONV_VERSION	0x0108
76 extern int _libiconv_version;
77 
78 typedef struct {
79 	void	*spaceholder[64];
80 } iconv_allocation_t;
81 
82 int	 iconv_open_into(const char *, const char *, iconv_allocation_t *);
83 void	 libiconv_set_relocation_prefix (const char *orig_prefix,
84 	     const char *curr_prefix);
85 
86 /*
87  * iconvctl() request macros
88  */
89 #define ICONV_TRIVIALP		0
90 #define	ICONV_GET_TRANSLITERATE	1
91 #define	ICONV_SET_TRANSLITERATE	2
92 #define ICONV_GET_DISCARD_ILSEQ	3
93 #define ICONV_SET_DISCARD_ILSEQ	4
94 #define ICONV_SET_HOOKS		5
95 #define ICONV_SET_FALLBACKS	6
96 
97 typedef void (*iconv_unicode_char_hook) (unsigned int mbr, void *data);
98 typedef void (*iconv_wide_char_hook) (wchar_t wc, void *data);
99 
100 struct iconv_hooks {
101 	iconv_unicode_char_hook		 uc_hook;
102 	iconv_wide_char_hook		 wc_hook;
103 	void				*data;
104 };
105 
106 /*
107  * Fallbacks aren't supported but type definitions are provided for
108  * source compatibility.
109  */
110 typedef void (*iconv_unicode_mb_to_uc_fallback) (const char*,
111 		size_t, void (*write_replacement) (const unsigned int *,
112 		size_t, void*),	void*, void*);
113 typedef void (*iconv_unicode_uc_to_mb_fallback) (unsigned int,
114 		void (*write_replacement) (const char *, size_t, void*),
115 		void*, void*);
116 typedef void (*iconv_wchar_mb_to_wc_fallback) (const char*, size_t,
117 		void (*write_replacement) (const wchar_t *, size_t, void*),
118 		void*, void*);
119 typedef void (*iconv_wchar_wc_to_mb_fallback) (wchar_t,
120 		void (*write_replacement) (const char *, size_t, void*),
121 		void*, void*);
122 
123 struct iconv_fallbacks {
124 	iconv_unicode_mb_to_uc_fallback	 mb_to_uc_fallback;
125 	iconv_unicode_uc_to_mb_fallback  uc_to_mb_fallback;
126 	iconv_wchar_mb_to_wc_fallback	 mb_to_wc_fallback;
127 	iconv_wchar_wc_to_mb_fallback	 wc_to_mb_fallback;
128 	void				*data;
129 };
130 
131 
132 void		 iconvlist(int (*do_one) (unsigned int, const char * const *,
133 		    void *), void *);
134 const char	*iconv_canonicalize(const char *);
135 int		 iconvctl(iconv_t, int, void *);
136 __END_DECLS
137 
138 #endif /* !_ICONV_H_ */
139