Linux Kernel  3.7.1
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
nls_iso8859-13.c
Go to the documentation of this file.
1 /*
2  * linux/fs/nls/nls_iso8859-13.c
3  *
4  * Charset iso8859-13 translation tables.
5  * The Unicode to charset table has only exact mappings.
6  */
7 
8 #include <linux/module.h>
9 #include <linux/kernel.h>
10 #include <linux/string.h>
11 #include <linux/nls.h>
12 #include <linux/errno.h>
13 
14 static const wchar_t charset2uni[256] = {
15  /* 0x00*/
16  0x0000, 0x0001, 0x0002, 0x0003,
17  0x0004, 0x0005, 0x0006, 0x0007,
18  0x0008, 0x0009, 0x000a, 0x000b,
19  0x000c, 0x000d, 0x000e, 0x000f,
20  /* 0x10*/
21  0x0010, 0x0011, 0x0012, 0x0013,
22  0x0014, 0x0015, 0x0016, 0x0017,
23  0x0018, 0x0019, 0x001a, 0x001b,
24  0x001c, 0x001d, 0x001e, 0x001f,
25  /* 0x20*/
26  0x0020, 0x0021, 0x0022, 0x0023,
27  0x0024, 0x0025, 0x0026, 0x0027,
28  0x0028, 0x0029, 0x002a, 0x002b,
29  0x002c, 0x002d, 0x002e, 0x002f,
30  /* 0x30*/
31  0x0030, 0x0031, 0x0032, 0x0033,
32  0x0034, 0x0035, 0x0036, 0x0037,
33  0x0038, 0x0039, 0x003a, 0x003b,
34  0x003c, 0x003d, 0x003e, 0x003f,
35  /* 0x40*/
36  0x0040, 0x0041, 0x0042, 0x0043,
37  0x0044, 0x0045, 0x0046, 0x0047,
38  0x0048, 0x0049, 0x004a, 0x004b,
39  0x004c, 0x004d, 0x004e, 0x004f,
40  /* 0x50*/
41  0x0050, 0x0051, 0x0052, 0x0053,
42  0x0054, 0x0055, 0x0056, 0x0057,
43  0x0058, 0x0059, 0x005a, 0x005b,
44  0x005c, 0x005d, 0x005e, 0x005f,
45  /* 0x60*/
46  0x0060, 0x0061, 0x0062, 0x0063,
47  0x0064, 0x0065, 0x0066, 0x0067,
48  0x0068, 0x0069, 0x006a, 0x006b,
49  0x006c, 0x006d, 0x006e, 0x006f,
50  /* 0x70*/
51  0x0070, 0x0071, 0x0072, 0x0073,
52  0x0074, 0x0075, 0x0076, 0x0077,
53  0x0078, 0x0079, 0x007a, 0x007b,
54  0x007c, 0x007d, 0x007e, 0x007f,
55  /* 0x80*/
56  0x0080, 0x0081, 0x0082, 0x0083,
57  0x0084, 0x0085, 0x0086, 0x0087,
58  0x0088, 0x0089, 0x008a, 0x008b,
59  0x008c, 0x008d, 0x008e, 0x008f,
60  /* 0x90*/
61  0x0090, 0x0091, 0x0092, 0x0093,
62  0x0094, 0x0095, 0x0096, 0x0097,
63  0x0098, 0x0099, 0x009a, 0x009b,
64  0x009c, 0x009d, 0x009e, 0x009f,
65  /* 0xa0*/
66  0x00a0, 0x201d, 0x00a2, 0x00a3,
67  0x00a4, 0x201e, 0x00a6, 0x00a7,
68  0x00d8, 0x00a9, 0x0156, 0x00ab,
69  0x00ac, 0x00ad, 0x00ae, 0x00c6,
70  /* 0xb0*/
71  0x00b0, 0x00b1, 0x00b2, 0x00b3,
72  0x201c, 0x00b5, 0x00b6, 0x00b7,
73  0x00f8, 0x00b9, 0x0157, 0x00bb,
74  0x00bc, 0x00bd, 0x00be, 0x00e6,
75  /* 0xc0*/
76  0x0104, 0x012e, 0x0100, 0x0106,
77  0x00c4, 0x00c5, 0x0118, 0x0112,
78  0x010c, 0x00c9, 0x0179, 0x0116,
79  0x0122, 0x0136, 0x012a, 0x013b,
80  /* 0xd0*/
81  0x0160, 0x0143, 0x0145, 0x00d3,
82  0x014c, 0x00d5, 0x00d6, 0x00d7,
83  0x0172, 0x0141, 0x015a, 0x016a,
84  0x00dc, 0x017b, 0x017d, 0x00df,
85  /* 0xe0*/
86  0x0105, 0x012f, 0x0101, 0x0107,
87  0x00e4, 0x00e5, 0x0119, 0x0113,
88  0x010d, 0x00e9, 0x017a, 0x0117,
89  0x0123, 0x0137, 0x012b, 0x013c,
90  /* 0xf0*/
91  0x0161, 0x0144, 0x0146, 0x00f3,
92  0x014d, 0x00f5, 0x00f6, 0x00f7,
93  0x0173, 0x0142, 0x015b, 0x016b,
94  0x00fc, 0x017c, 0x017e, 0x2019,
95 };
96 
97 static const unsigned char page00[256] = {
98  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
99  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
100  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
101  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
102  0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
103  0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
104  0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
105  0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
106  0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
107  0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
108  0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
109  0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
110  0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
111  0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
112  0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
113  0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
114 
115  0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
116  0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
117  0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
118  0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
119  0xa0, 0x00, 0xa2, 0xa3, 0xa4, 0x00, 0xa6, 0xa7, /* 0xa0-0xa7 */
120  0x00, 0xa9, 0x00, 0xab, 0xac, 0xad, 0xae, 0x00, /* 0xa8-0xaf */
121  0xb0, 0xb1, 0xb2, 0xb3, 0x00, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
122  0x00, 0xb9, 0x00, 0xbb, 0xbc, 0xbd, 0xbe, 0x00, /* 0xb8-0xbf */
123  0x00, 0x00, 0x00, 0x00, 0xc4, 0xc5, 0xaf, 0x00, /* 0xc0-0xc7 */
124  0x00, 0xc9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc8-0xcf */
125  0x00, 0x00, 0x00, 0xd3, 0x00, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
126  0xa8, 0x00, 0x00, 0x00, 0xdc, 0x00, 0x00, 0xdf, /* 0xd8-0xdf */
127  0x00, 0x00, 0x00, 0x00, 0xe4, 0xe5, 0xbf, 0x00, /* 0xe0-0xe7 */
128  0x00, 0xe9, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xe8-0xef */
129  0x00, 0x00, 0x00, 0xf3, 0x00, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
130  0xb8, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x00, 0x00, /* 0xf8-0xff */
131 };
132 
133 static const unsigned char page01[256] = {
134  0xc2, 0xe2, 0x00, 0x00, 0xc0, 0xe0, 0xc3, 0xe3, /* 0x00-0x07 */
135  0x00, 0x00, 0x00, 0x00, 0xc8, 0xe8, 0x00, 0x00, /* 0x08-0x0f */
136  0x00, 0x00, 0xc7, 0xe7, 0x00, 0x00, 0xcb, 0xeb, /* 0x10-0x17 */
137  0xc6, 0xe6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x18-0x1f */
138  0x00, 0x00, 0xcc, 0xec, 0x00, 0x00, 0x00, 0x00, /* 0x20-0x27 */
139  0x00, 0x00, 0xce, 0xee, 0x00, 0x00, 0xc1, 0xe1, /* 0x28-0x2f */
140  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xcd, 0xed, /* 0x30-0x37 */
141  0x00, 0x00, 0x00, 0xcf, 0xef, 0x00, 0x00, 0x00, /* 0x38-0x3f */
142  0x00, 0xd9, 0xf9, 0xd1, 0xf1, 0xd2, 0xf2, 0x00, /* 0x40-0x47 */
143  0x00, 0x00, 0x00, 0x00, 0xd4, 0xf4, 0x00, 0x00, /* 0x48-0x4f */
144  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xaa, 0xba, /* 0x50-0x57 */
145  0x00, 0x00, 0xda, 0xfa, 0x00, 0x00, 0x00, 0x00, /* 0x58-0x5f */
146  0xd0, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60-0x67 */
147  0x00, 0x00, 0xdb, 0xfb, 0x00, 0x00, 0x00, 0x00, /* 0x68-0x6f */
148  0x00, 0x00, 0xd8, 0xf8, 0x00, 0x00, 0x00, 0x00, /* 0x70-0x77 */
149  0x00, 0xca, 0xea, 0xdd, 0xfd, 0xde, 0xfe, 0x00, /* 0x78-0x7f */
150 };
151 
152 static const unsigned char page20[256] = {
153  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00-0x07 */
154  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x08-0x0f */
155  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10-0x17 */
156  0x00, 0xff, 0x00, 0x00, 0xb4, 0xa1, 0xa5, 0x00, /* 0x18-0x1f */
157 };
158 
159 static const unsigned char *const page_uni2charset[256] = {
160  page00, page01, NULL, NULL, NULL, NULL, NULL, NULL,
161  NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
162  NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
163  NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
164  page20, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
165 };
166 
167 static const unsigned char charset2lower[256] = {
168  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
169  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
170  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
171  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
172  0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
173  0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
174  0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
175  0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
176  0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */
177  0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */
178  0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */
179  0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
180  0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */
181  0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */
182  0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */
183  0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
184 
185  0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
186  0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
187  0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
188  0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
189  0xa0, 0xb1, 0xa2, 0xb3, 0xa4, 0xb5, 0xb6, 0xa7, /* 0xa0-0xa7 */
190  0xa8, 0xb9, 0xba, 0xbb, 0xbc, 0xad, 0xbe, 0xaf, /* 0xa8-0xaf */
191  0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, /* 0xb0-0xb7 */
192  0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbf, 0xbe, 0xbf, /* 0xb8-0xbf */
193  0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xc0-0xc7 */
194  0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xc8-0xcf */
195  0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xd7, /* 0xd0-0xd7 */
196  0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xdf, /* 0xd8-0xdf */
197  0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7, /* 0xe0-0xe7 */
198  0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef, /* 0xe8-0xef */
199  0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 0xf0-0xf7 */
200  0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff, /* 0xf8-0xff */
201 };
202 
203 static const unsigned char charset2upper[256] = {
204  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */
205  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */
206  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */
207  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */
208  0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */
209  0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */
210  0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */
211  0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */
212  0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */
213  0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */
214  0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */
215  0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */
216  0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */
217  0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */
218  0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */
219  0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */
220 
221  0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 0x80-0x87 */
222  0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, /* 0x88-0x8f */
223  0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97, /* 0x90-0x97 */
224  0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, /* 0x98-0x9f */
225  0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, /* 0xa0-0xa7 */
226  0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, /* 0xa8-0xaf */
227  0xb0, 0xa1, 0xb2, 0xa3, 0xb4, 0xa5, 0xa6, 0xb7, /* 0xb0-0xb7 */
228  0xb8, 0xa9, 0xaa, 0xab, 0xac, 0xbd, 0xae, 0xbd, /* 0xb8-0xbf */
229  0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xc0-0xc7 */
230  0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xc8-0xcf */
231  0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7, /* 0xd0-0xd7 */
232  0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf, /* 0xd8-0xdf */
233  0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 0xe0-0xe7 */
234  0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, /* 0xe8-0xef */
235  0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xf7, /* 0xf0-0xf7 */
236  0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xff, /* 0xf8-0xff */
237 };
238 
239 static int uni2char(wchar_t uni, unsigned char *out, int boundlen)
240 {
241  const unsigned char *uni2charset;
242  unsigned char cl = uni & 0x00ff;
243  unsigned char ch = (uni & 0xff00) >> 8;
244 
245  if (boundlen <= 0)
246  return -ENAMETOOLONG;
247 
248  uni2charset = page_uni2charset[ch];
249  if (uni2charset && uni2charset[cl])
250  out[0] = uni2charset[cl];
251  else
252  return -EINVAL;
253  return 1;
254 }
255 
256 static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni)
257 {
258  *uni = charset2uni[*rawstring];
259  if (*uni == 0x0000)
260  return -EINVAL;
261  return 1;
262 }
263 
264 static struct nls_table table = {
265  .charset = "iso8859-13",
266  .uni2char = uni2char,
267  .char2uni = char2uni,
268  .charset2lower = charset2lower,
269  .charset2upper = charset2upper,
270  .owner = THIS_MODULE,
271 };
272 
273 static int __init init_nls_iso8859_13(void)
274 {
275  return register_nls(&table);
276 }
277 
278 static void __exit exit_nls_iso8859_13(void)
279 {
280  unregister_nls(&table);
281 }
282 
283 module_init(init_nls_iso8859_13)
284 module_exit(exit_nls_iso8859_13)
285 
286 MODULE_LICENSE("Dual BSD/GPL");
Generated on Thu Jan 10 2013 14:49:08 for Linux Kernel by   doxygen 1.8.2