xref: /haiku/src/add-ons/kernel/file_systems/fat/bsd/sys/iconv.h (revision 342a1b221b5bb385410f758df2c625b70cafdd03)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2000-2001 Boris Popov
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 #ifndef FAT_ICONV_H
29 #define FAT_ICONV_H
30 
31 
32 // Modified to support the Haiku FAT driver.
33 
34 #ifndef FS_SHELL
35 #include <ctype.h>
36 #include <string.h>
37 
38 #include <fs_info.h>
39 #include <libs/iconv/iconv.h>
40 #endif
41 
42 
43 // In Haiku, the function names iconv_open and iconv_close are already taken.
44 int fat_iconv_open(const char* to, const char* from, void** handle);
45 int fat_iconv_close(void* handle);
46 int iconv_conv(void* handle, const char** inbuf, size_t* inbytesleft, char** outbuf,
47 	size_t* outbytesleft);
48 int iconv_convchr(void* handle, const char** inbuf, size_t* inbytesleft, char** outbuf,
49 	size_t* outbytesleft);
50 int iconv_convchr_case(void* handle, const char** inbuf, size_t* inbytesleft, char** outbuf,
51 	size_t* outbytesleft, int casetype);
52 
53 #define KICONV_LOWER 1 /* tolower converted character */
54 #define KICONV_UPPER 2 /* toupper converted character */
55 #define KICONV_FROM_LOWER 4 /* tolower source character, then convert */
56 #define KICONV_FROM_UPPER 8 /* toupper source character, then convert */
57 #define KICONV_WCTYPE 16 /* towlower/towupper characters */
58 
59 /*
60  * Bridge struct of iconv functions
61  */
62 struct iconv_functions {
63 	int (*open)(const char* to, const char* from, void** handle);
64 	int (*close)(void* handle);
65 	int (*conv)(void* handle, const char** inbuf, size_t* inbytesleft, char** outbuf,
66 		size_t* outbytesleft);
67 	int (*convchr)(void* handle, const char** inbuf, size_t* inbytesleft, char** outbuf,
68 		size_t* outbytesleft);
69 	int (*convchr_case)(void* handle, const char** inbuf, size_t* inbytesleft, char** outbuf,
70 		size_t* outbytesleft, int casetype);
71 };
72 
73 #define VFS_DECLARE_ICONV(fsname) extern struct iconv_functions* fsname##_iconv;
74 
75 
76 #endif // FAT_ICONV_H
77