1 | /* $NetBSD: ntfs_conv.c,v 1.10 2015/02/20 17:08:13 maxv 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 | * |
16 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
17 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
18 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
19 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
26 | * POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
28 | |
29 | /* |
30 | * File name recode stuff. |
31 | */ |
32 | |
33 | #include <sys/cdefs.h> |
34 | __KERNEL_RCSID(0, "$NetBSD: ntfs_conv.c,v 1.10 2015/02/20 17:08:13 maxv Exp $" ); |
35 | |
36 | #include <sys/param.h> |
37 | #include <sys/systm.h> |
38 | #include <sys/namei.h> |
39 | #include <sys/kernel.h> |
40 | #include <sys/mount.h> |
41 | #include <sys/malloc.h> |
42 | |
43 | #include <fs/ntfs/ntfs.h> |
44 | #include <fs/ntfs/ntfs_inode.h> |
45 | #include <fs/ntfs/ntfs_subr.h> |
46 | |
47 | /* UTF-8 encoding stuff */ |
48 | #include <fs/unicode.h> |
49 | |
50 | /* |
51 | * Read one wide character off the string, shift the string pointer |
52 | * and return the character. |
53 | */ |
54 | wchar |
55 | ntfs_utf8_wget(const char **str, size_t *sz) |
56 | { |
57 | return (wchar) wget_utf8(str, sz); |
58 | } |
59 | |
60 | /* |
61 | * Encode wide character and write it to the string. 'n' specifies |
62 | * how much space there is in the string. Returns number of bytes written |
63 | * to the target string. |
64 | */ |
65 | int |
66 | ntfs_utf8_wput(char *s, size_t n, wchar wc) |
67 | { |
68 | return wput_utf8(s, n, (u_int16_t) wc); |
69 | } |
70 | |
71 | /* |
72 | * Compare two wide characters, returning 1, 0, -1 if the first is |
73 | * bigger, equal or lower than the second. |
74 | */ |
75 | int |
76 | ntfs_utf8_wcmp(wchar wc1, wchar wc2) |
77 | { |
78 | /* no conversions needed for utf8 */ |
79 | |
80 | if (wc1 == wc2) |
81 | return 0; |
82 | else |
83 | return (int) wc1 - (int) wc2; |
84 | } |
85 | |