FreeBSD/Linux Kernel Cross Reference
sys/fs/ntfs/ntfs_conv.c

     /*      $NetBSD: ntfs_conv.c,v 1.5 2005/02/26 22:58:55 perry 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 1.5 2005/02/26 22:58:55 perry 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>
    
    /* #define NTFS_DEBUG 1 */
    #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;
   }

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