mirror of
https://github.com/torvalds/linux.git
synced 2024-11-10 14:11:52 +00:00
91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
/*
|
|
* fs/cifs/cifs_unicode.c
|
|
*
|
|
* Copyright (c) International Business Machines Corp., 2000,2005
|
|
* Modified by Steve French (sfrench@us.ibm.com)
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
|
|
* the GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
#include <linux/fs.h>
|
|
#include "cifs_unicode.h"
|
|
#include "cifs_uniupr.h"
|
|
#include "cifspdu.h"
|
|
#include "cifsglob.h"
|
|
#include "cifs_debug.h"
|
|
|
|
/*
|
|
* NAME: cifs_strfromUCS()
|
|
*
|
|
* FUNCTION: Convert little-endian unicode string to character string
|
|
*
|
|
*/
|
|
int
|
|
cifs_strfromUCS_le(char *to, const __le16 *from,
|
|
int len, const struct nls_table *codepage)
|
|
{
|
|
int i;
|
|
int outlen = 0;
|
|
|
|
for (i = 0; (i < len) && from[i]; i++) {
|
|
int charlen;
|
|
/* 2.4.0 kernel or greater */
|
|
charlen =
|
|
codepage->uni2char(le16_to_cpu(from[i]), &to[outlen],
|
|
NLS_MAX_CHARSET_SIZE);
|
|
if (charlen > 0) {
|
|
outlen += charlen;
|
|
} else {
|
|
to[outlen++] = '?';
|
|
}
|
|
}
|
|
to[outlen] = 0;
|
|
return outlen;
|
|
}
|
|
|
|
/*
|
|
* NAME: cifs_strtoUCS()
|
|
*
|
|
* FUNCTION: Convert character string to unicode string
|
|
*
|
|
*/
|
|
int
|
|
cifs_strtoUCS(__le16 *to, const char *from, int len,
|
|
const struct nls_table *codepage)
|
|
{
|
|
int charlen;
|
|
int i;
|
|
wchar_t *wchar_to = (wchar_t *)to; /* needed to quiet sparse */
|
|
|
|
for (i = 0; len && *from; i++, from += charlen, len -= charlen) {
|
|
|
|
/* works for 2.4.0 kernel or later */
|
|
charlen = codepage->char2uni(from, len, &wchar_to[i]);
|
|
if (charlen < 1) {
|
|
cERROR(1,
|
|
("strtoUCS: char2uni of %d returned %d",
|
|
(int)*from, charlen));
|
|
/* A question mark */
|
|
to[i] = cpu_to_le16(0x003f);
|
|
charlen = 1;
|
|
} else
|
|
to[i] = cpu_to_le16(wchar_to[i]);
|
|
|
|
}
|
|
|
|
to[i] = 0;
|
|
return i;
|
|
}
|
|
|