fs/nls/nls_iso8859-13.c

   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 };
 271
 272 static int __init init_nls_iso8859_13(void)
 273 {
 274         return register_nls(&table);
 275 }
 276
 277 static void __exit exit_nls_iso8859_13(void)
 278 {
 279         unregister_nls(&table);
 280 }
 281
 282 module_init(init_nls_iso8859_13)
 283 module_exit(exit_nls_iso8859_13)
 284
 285 MODULE_LICENSE("Dual BSD/GPL");