1#ifndef _LINUX_NLS_H
2#define _LINUX_NLS_H
3
4#include <linux/init.h>
5
6/* unicode character */
7typedef __u16 wchar_t;
8
9struct nls_table {
10	char *charset;
11	int (*uni2char) (wchar_t uni, unsigned char *out, int boundlen);
12	int (*char2uni) (const unsigned char *rawstring, int boundlen,
13			 wchar_t *uni);
14	unsigned char *charset2lower;
15	unsigned char *charset2upper;
16	struct module *owner;
17	struct nls_table *next;
18};
19
20/* this value hold the maximum octet of charset */
21#define NLS_MAX_CHARSET_SIZE 6 /* for UTF-8 */
22
23/* nls.c */
24extern int register_nls(struct nls_table *);
25extern int unregister_nls(struct nls_table *);
26extern struct nls_table *load_nls(char *);
27extern void unload_nls(struct nls_table *);
28extern struct nls_table *load_nls_default(void);
29
30extern int utf8_mbtowc(wchar_t *, const __u8 *, int);
31extern int utf8_mbstowcs(wchar_t *, const __u8 *, int);
32extern int utf8_wctomb(__u8 *, wchar_t, int);
33extern int utf8_wcstombs(__u8 *, const wchar_t *, int);
34
35#endif /* _LINUX_NLS_H */
36
37