blob: d484fc8712b85322bd504cd5763b5ba5c49da1dc [file] [log] [blame]
rjw1f884582022-01-06 17:20:42 +08001/* Copyright (C) 1999-2003 Free Software Foundation, Inc.
2 This file is part of the GNU LIBICONV Library.
3
4 The GNU LIBICONV Library is free software; you can redistribute it
5 and/or modify it under the terms of the GNU Library General Public
6 License as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 The GNU LIBICONV Library is distributed in the hope that it will be
10 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Library General Public License for more details.
13
14 You should have received a copy of the GNU Library General Public
15 License along with the GNU LIBICONV Library; see the file COPYING.LIB.
16 If not, write to the Free Software Foundation, Inc., 59 Temple Place -
17 Suite 330, Boston, MA 02111-1307, USA. */
18
19/* When installed, this file is called "iconv.h". */
20
21#ifndef _LIBICONV_H
22#define _LIBICONV_H
23
24#define _LIBICONV_VERSION 0x0109 /* version number: (major<<8) + minor */
25extern int _libiconv_version; /* Likewise */
26
27/* We would like to #include any system header file which could define
28 iconv_t, 1. in order to eliminate the risk that the user gets compilation
29 errors because some other system header file includes /usr/include/iconv.h
30 which defines iconv_t or declares iconv after this file, 2. when compiling
31 for LIBICONV_PLUG, we need the proper iconv_t type in order to produce
32 binary compatible code.
33 But gcc's #include_next is not portable. Thus, once libiconv's iconv.h
34 has been installed in /usr/local/include, there is no way any more to
35 include the original /usr/include/iconv.h. We simply have to get away
36 without it.
37 Ad 1. The risk that a system header file does
38 #include "iconv.h" or #include_next "iconv.h"
39 is small. They all do #include <iconv.h>.
40 Ad 2. The iconv_t type is a pointer type in all cases I have seen. (It
41 has to be a scalar type because (iconv_t)(-1) is a possible return value
42 from iconv_open().) */
43
44/* Define iconv_t ourselves. */
45#undef iconv_t
46#define iconv_t libiconv_t
47typedef void* iconv_t;
48
49/* Get size_t declaration. */
50#include <stddef.h>
51
52/* Get errno declaration and values. */
53#include <errno.h>
54/* Some systems, like SunOS 4, don't have EILSEQ. Some systems, like BSD/OS,
55 have EILSEQ in a different header. On these systems, define EILSEQ
56 ourselves. */
57#ifndef EILSEQ
58/* Igor: called upon EILSEQ from glibc, since autogeneration of this header
59 on Windows didn't do the job. */
60/* #define EILSEQ @EILSEQ@ */
61#define EILSEQ 84
62#endif
63
64
65#ifdef __cplusplus
66extern "C" {
67#endif
68
69
70/* Allocates descriptor for code conversion from encoding `fromcode' to
71 encoding `tocode'. */
72#ifndef LIBICONV_PLUG
73#define iconv_open libiconv_open
74#endif
75extern iconv_t iconv_open (const char* tocode, const char* fromcode);
76
77/* Converts, using conversion descriptor `cd', at most `*inbytesleft' bytes
78 starting at `*inbuf', writing at most `*outbytesleft' bytes starting at
79 `*outbuf'.
80 Decrements `*inbytesleft' and increments `*inbuf' by the same amount.
81 Decrements `*outbytesleft' and increments `*outbuf' by the same amount. */
82#ifndef LIBICONV_PLUG
83#define iconv libiconv
84#endif
85extern size_t iconv (iconv_t cd, const char* * inbuf, size_t *inbytesleft, char* * outbuf, size_t *outbytesleft);
86
87/* Frees resources allocated for conversion descriptor `cd'. */
88#ifndef LIBICONV_PLUG
89#define iconv_close libiconv_close
90#endif
91extern int iconv_close (iconv_t cd);
92
93
94#ifndef LIBICONV_PLUG
95
96/* Nonstandard extensions. */
97
98/* Control of attributes. */
99#define iconvctl libiconvctl
100extern int iconvctl (iconv_t cd, int request, void* argument);
101
102/* Requests for iconvctl. */
103#define ICONV_TRIVIALP 0 /* int *argument */
104#define ICONV_GET_TRANSLITERATE 1 /* int *argument */
105#define ICONV_SET_TRANSLITERATE 2 /* const int *argument */
106#define ICONV_GET_DISCARD_ILSEQ 3 /* int *argument */
107#define ICONV_SET_DISCARD_ILSEQ 4 /* const int *argument */
108
109/* Listing of locale independent encodings. */
110#define iconvlist libiconvlist
111extern void iconvlist (int (*do_one) (unsigned int namescount,
112 const char * const * names,
113 void* data),
114 void* data);
115
116/* Support for relocatable packages. */
117
118/* Sets the original and the current installation prefix of the package.
119 Relocation simply replaces a pathname starting with the original prefix
120 by the corresponding pathname with the current prefix instead. Both
121 prefixes should be directory names without trailing slash (i.e. use ""
122 instead of "/"). */
123extern void libiconv_set_relocation_prefix (const char *orig_prefix,
124 const char *curr_prefix);
125
126#endif
127
128
129#ifdef __cplusplus
130}
131#endif
132
133
134#endif /* _LIBICONV_H */