1 /* $NetBSD: ntfs_conv.c,v 1.5 2005/02/26 22:58:55 perry Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the NetBSD 18 * Foundation, Inc. and its contributors. 19 * 4. Neither the name of The NetBSD Foundation nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 36 /* 37 * File name recode stuff. 38 */ 39 40 #include <sys/cdefs.h> 41 __KERNEL_RCSID(0, "$NetBSD: ntfs_conv.c,v 1.5 2005/02/26 22:58:55 perry Exp $"); 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/namei.h> 46 #include <sys/proc.h> 47 #include <sys/kernel.h> 48 #include <sys/vnode.h> 49 #include <sys/mount.h> 50 #include <sys/buf.h> 51 #include <sys/file.h> 52 #include <sys/malloc.h> 53 #include <sys/lock.h> 54 #if defined(__FreeBSD__) 55 #include <machine/clock.h> 56 #endif 57 58 #include <miscfs/specfs/specdev.h> 59 60 /* #define NTFS_DEBUG 1 */ 61 #include <fs/ntfs/ntfs.h> 62 #include <fs/ntfs/ntfsmount.h> 63 #include <fs/ntfs/ntfs_inode.h> 64 #include <fs/ntfs/ntfs_vfsops.h> 65 #include <fs/ntfs/ntfs_subr.h> 66 #include <fs/ntfs/ntfs_compr.h> 67 #include <fs/ntfs/ntfs_ihash.h> 68 69 /* UTF-8 encoding stuff */ 70 #include <fs/unicode.h> 71 72 /* 73 * Read one wide character off the string, shift the string pointer 74 * and return the character. 75 */ 76 wchar 77 ntfs_utf8_wget(const char **str, size_t *sz) 78 { 79 return (wchar) wget_utf8(str, sz); 80 } 81 82 /* 83 * Encode wide character and write it to the string. 'n' specifies 84 * how much space there is in the string. Returns number of bytes written 85 * to the target string. 86 */ 87 int 88 ntfs_utf8_wput(char *s, size_t n, wchar wc) 89 { 90 return wput_utf8(s, n, (u_int16_t) wc); 91 } 92 93 /* 94 * Compare two wide characters, returning 1, 0, -1 if the first is 95 * bigger, equal or lower than the second. 96 */ 97 int 98 ntfs_utf8_wcmp(wchar wc1, wchar wc2) 99 { 100 /* no conversions needed for utf8 */ 101 102 if (wc1 == wc2) 103 return 0; 104 else 105 return (int) wc1 - (int) wc2; 106 } 107