linux/fs/nls/nls_iso8859-13.c
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   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        .owner          = THIS_MODULE,
 271};
 272
 273static int __init init_nls_iso8859_13(void)
 274{
 275        return register_nls(&table);
 276}
 277
 278static void __exit exit_nls_iso8859_13(void)
 279{
 280        unregister_nls(&table);
 281}
 282
 283module_init(init_nls_iso8859_13)
 284module_exit(exit_nls_iso8859_13)
 285
 286MODULE_LICENSE("Dual BSD/GPL");
 287
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