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
14static 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
97static 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
133static 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
152static 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
159static 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
167static 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
203static 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
239static 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
256static 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
264static struct nls_table table = {
265	.charset	= "iso8859-13",
266	.uni2char	= uni2char,
267	.char2uni	= char2uni,
268	.charset2lower	= charset2lower,
269	.charset2upper	= charset2upper,
270};
271
272static int __init init_nls_iso8859_13(void)
273{
274	return register_nls(&table);
275}
276
277static void __exit exit_nls_iso8859_13(void)
278{
279	unregister_nls(&table);
280}
281
282module_init(init_nls_iso8859_13)
283module_exit(exit_nls_iso8859_13)
284
285MODULE_LICENSE("Dual BSD/GPL");
286