NetBSD/sys/fs/ntfs/ntfs_conv.c

106 lines
3.3 KiB
C

/* $NetBSD: ntfs_conv.c,v 1.7 2005/12/11 12:24:29 christos Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* File name recode stuff.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: ntfs_conv.c,v 1.7 2005/12/11 12:24:29 christos Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/proc.h>
#include <sys/kernel.h>
#include <sys/vnode.h>
#include <sys/mount.h>
#include <sys/buf.h>
#include <sys/file.h>
#include <sys/malloc.h>
#include <sys/lock.h>
#if defined(__FreeBSD__)
#include <machine/clock.h>
#endif
#include <miscfs/specfs/specdev.h>
#include <fs/ntfs/ntfs.h>
#include <fs/ntfs/ntfsmount.h>
#include <fs/ntfs/ntfs_inode.h>
#include <fs/ntfs/ntfs_vfsops.h>
#include <fs/ntfs/ntfs_subr.h>
#include <fs/ntfs/ntfs_compr.h>
#include <fs/ntfs/ntfs_ihash.h>
/* UTF-8 encoding stuff */
#include <fs/unicode.h>
/*
* Read one wide character off the string, shift the string pointer
* and return the character.
*/
wchar
ntfs_utf8_wget(const char **str, size_t *sz)
{
return (wchar) wget_utf8(str, sz);
}
/*
* Encode wide character and write it to the string. 'n' specifies
* how much space there is in the string. Returns number of bytes written
* to the target string.
*/
int
ntfs_utf8_wput(char *s, size_t n, wchar wc)
{
return wput_utf8(s, n, (u_int16_t) wc);
}
/*
* Compare two wide characters, returning 1, 0, -1 if the first is
* bigger, equal or lower than the second.
*/
int
ntfs_utf8_wcmp(wchar wc1, wchar wc2)
{
/* no conversions needed for utf8 */
if (wc1 == wc2)
return 0;
else
return (int) wc1 - (int) wc2;
}