nls_koi8-ru.c File Reference

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/nls.h>
#include <linux/errno.h>

Include dependency graph for nls_koi8-ru.c:

Go to the source code of this file.

Functions
static int	uni2char (const wchar_t uni, unsigned char *out, int boundlen)
static int	char2uni (const unsigned char *rawstring, int boundlen, wchar_t *uni)
static int __init	init_nls_koi8_ru (void)
static void __exit	exit_nls_koi8_ru (void)

Variables
static struct nls_table *	p_nls
static struct nls_table	table

Function Documentation

char2uni()

static int char2uni ( const unsigned char *  rawstring, int  boundlen, wchar_t *  uni  )

static

Definition at line 39 of file nls_koi8-ru.c.

{
    int n;
 
    if ((*rawstring & 0xef) != 0xae) {
        /* koi8-ru and koi8-u differ only on two characters */
        *uni = (*rawstring & 0x10) ? 0x040e : 0x045e;
        return 1;
    }
 
    n = p_nls->char2uni(rawstring, boundlen, uni);
    return n;
}

exit_nls_koi8_ru()

static void __exit exit_nls_koi8_ru ( void  )

static

Definition at line 76 of file nls_koi8-ru.c.

{
    unregister_nls(&table);
    unload_nls(p_nls);
}

Referenced by Ext2UnloadAllNls().

init_nls_koi8_ru()

static int __init init_nls_koi8_ru ( void  )

static

Definition at line 63 of file nls_koi8-ru.c.

{
    p_nls = load_nls("koi8-u");
 
    if (p_nls) {
        table.charset2upper = p_nls->charset2upper;
        table.charset2lower = p_nls->charset2lower;
        return register_nls(&table);
    }
 
    return -EINVAL;
}

Referenced by Ext2LoadAllNls().

uni2char()

static int uni2char ( const wchar_t  uni, unsigned char *  out, int  boundlen  )

static

Definition at line 16 of file nls_koi8-ru.c.

{
    if (boundlen <= 0)
        return -ENAMETOOLONG;
 
    if ((uni & 0xffaf) == 0x040e || (uni & 0xffce) == 0x254c) {
        /* koi8-ru and koi8-u differ only on two characters */
        if (uni == 0x040e)
            out[0] = 0xbe;
        else if (uni == 0x045e)
            out[0] = 0xae;
        else if (uni == 0x255d || uni == 0x256c)
            return 0;
        else
            return p_nls->uni2char(uni, out, boundlen);
        return 1;
    }
    else
        /* fast path */
        return p_nls->uni2char(uni, out, boundlen);
}

Variable Documentation

p_nls

struct nls_table* p_nls

static

Definition at line 14 of file nls_koi8-ru.c.

Referenced by char2uni(), exit_nls_koi8_ru(), init_nls_koi8_ru(), and uni2char().

table

struct nls_table table

static

Initial value:

= {
     "koi8-ru",
       0,
     uni2char,
     char2uni,
    0, 0,
     THIS_MODULE,
}

Definition at line 54 of file nls_koi8-ru.c.