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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
// --- BEGIN COPYRIGHT BLOCK ---
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; version 2 of the License.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// (C) 2007 Red Hat, Inc.
// All rights reserved.
// --- END COPYRIGHT BLOCK ---
package netscape.security.util;
import sun.io.CharToByteConverter;
import sun.io.ConversionBufferFullException;
import sun.io.UnknownCharacterException;
/**
* Converts a string of ASN.1 IA5String characters to IA5String bytes.
*
* @author Lily Hsiao
* @author Slava Galperin
*/
public class CharToByteIA5String extends CharToByteConverter {
/*
* Returns the character set id for the conversion.
*
* @return the character set id.
*/
public String getCharacterEncoding() {
return "ASN.1 IA5String";
}
/*
* Converts an array of Unicode characters into an array of IA5String bytes
* and returns the total number of characters converted. If conversion
* cannot be done, UnknownCharacterException is thrown. The character and
* byte offset will be set to the point of the unknown character.
*
* @param input character array to convert.
*
* @param inStart offset from which to start the conversion.
*
* @param inEnd where to end the conversion.
*
* @param output byte array to store converted bytes.
*
* @param outStart starting offset in the output byte array.
*
* @param outEnd ending offset in the output byte array.
*
* @return the number of characters converted.
*/
public int convert(char[] input, int inStart, int inEnd, byte[] output,
int outStart, int outEnd) throws ConversionBufferFullException,
UnknownCharacterException {
int j = outStart;
for (int i = inStart; i < inEnd; i++, j++) {
if (j >= outEnd) {
charOff = i;
byteOff = j;
throw new ConversionBufferFullException();
}
if (!subMode && (input[i] & 0xFF80) != 0) {
charOff = i;
byteOff = j;
badInputLength = 1;
throw new UnknownCharacterException();
}
output[j] = (byte) (input[i] & 0x7f);
}
return j - outStart;
}
public int flush(byte[] output, int outStart, int outEnd) {
return 0;
}
public void reset() {
}
public int getMaxBytesPerChar() {
return 1;
}
}
|