1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
/* $OpenBSD: udf_subr.c,v 1.1 2006/01/14 19:04:17 miod Exp $ */
/*
* Copyright (c) 2006, Miodrag Vallat
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/mutex.h>
#include <sys/stat.h>
#include <sys/mount.h>
#include <sys/vnode.h>
#include <sys/dirent.h>
#include <sys/unistd.h>
#include <isofs/udf/ecma167-udf.h>
#include <isofs/udf/udf.h>
#include <isofs/udf/udf_extern.h>
/*
* Convert a CS0 dstring to a 16-bit Unicode string.
* Returns the length of the Unicode string, in unicode characters (not
* bytes!), or -1 if an error arises.
* Note that the transname destination buffer is expected to be large
* enough to hold the result, and will not be terminated in any way.
*/
int
udf_rawnametounicode(u_int len, char *cs0string, unicode_t *transname)
{
unicode_t *origname = transname;
if (len-- == 0)
return (-1);
switch (*cs0string++) {
case 8: /* bytes string */
while (len-- != 0)
*transname++ = (unicode_t)*cs0string++;
break;
case 16: /* 16 bit unicode string */
if (len & 1)
return (-1);
len >>= 1;
while (len-- != 0) {
unicode_t tmpchar;
tmpchar = (unicode_t)*cs0string++;
tmpchar = (tmpchar << 8) | (unicode_t)*cs0string++;
*transname++ = tmpchar;
}
break;
default:
return (-1);
}
return (transname - origname);
}
|
