1 /* 2 * linux/fs/nls/nls_ascii.c 3 * 4 * Charset ascii translation tables. 5 * Generated automatically from the Unicode and charset 6 * tables from the Unicode Organization (www.unicode.org). 7 * The Unicode to charset table has only exact mappings. 8 */ 9 10 #include <linux/module.h> 11 #include <linux/kernel.h> 12 #include <linux/string.h> 13 #include <linux/nls.h> 14 #include <linux/errno.h> 15 16 static const wchar_t charset2uni[256] = { 17 /* 0x00*/ 18 0x0000, 0x0001, 0x0002, 0x0003, 19 0x0004, 0x0005, 0x0006, 0x0007, 20 0x0008, 0x0009, 0x000a, 0x000b, 21 0x000c, 0x000d, 0x000e, 0x000f, 22 /* 0x10*/ 23 0x0010, 0x0011, 0x0012, 0x0013, 24 0x0014, 0x0015, 0x0016, 0x0017, 25 0x0018, 0x0019, 0x001a, 0x001b, 26 0x001c, 0x001d, 0x001e, 0x001f, 27 /* 0x20*/ 28 0x0020, 0x0021, 0x0022, 0x0023, 29 0x0024, 0x0025, 0x0026, 0x0027, 30 0x0028, 0x0029, 0x002a, 0x002b, 31 0x002c, 0x002d, 0x002e, 0x002f, 32 /* 0x30*/ 33 0x0030, 0x0031, 0x0032, 0x0033, 34 0x0034, 0x0035, 0x0036, 0x0037, 35 0x0038, 0x0039, 0x003a, 0x003b, 36 0x003c, 0x003d, 0x003e, 0x003f, 37 /* 0x40*/ 38 0x0040, 0x0041, 0x0042, 0x0043, 39 0x0044, 0x0045, 0x0046, 0x0047, 40 0x0048, 0x0049, 0x004a, 0x004b, 41 0x004c, 0x004d, 0x004e, 0x004f, 42 /* 0x50*/ 43 0x0050, 0x0051, 0x0052, 0x0053, 44 0x0054, 0x0055, 0x0056, 0x0057, 45 0x0058, 0x0059, 0x005a, 0x005b, 46 0x005c, 0x005d, 0x005e, 0x005f, 47 /* 0x60*/ 48 0x0060, 0x0061, 0x0062, 0x0063, 49 0x0064, 0x0065, 0x0066, 0x0067, 50 0x0068, 0x0069, 0x006a, 0x006b, 51 0x006c, 0x006d, 0x006e, 0x006f, 52 /* 0x70*/ 53 0x0070, 0x0071, 0x0072, 0x0073, 54 0x0074, 0x0075, 0x0076, 0x0077, 55 0x0078, 0x0079, 0x007a, 0x007b, 56 0x007c, 0x007d, 0x007e, 0x007f, 57 }; 58 59 static const unsigned char page00[256] = { 60 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */ 61 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */ 62 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */ 63 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */ 64 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */ 65 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */ 66 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */ 67 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */ 68 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */ 69 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */ 70 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */ 71 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */ 72 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */ 73 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */ 74 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */ 75 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */ 76 }; 77 78 static const unsigned char *const page_uni2charset[256] = { 79 page00, 80 }; 81 82 static const unsigned char charset2lower[256] = { 83 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */ 84 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */ 85 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */ 86 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */ 87 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */ 88 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */ 89 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */ 90 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */ 91 0x40, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x40-0x47 */ 92 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x48-0x4f */ 93 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x50-0x57 */ 94 0x78, 0x79, 0x7a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */ 95 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 0x60-0x67 */ 96 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, /* 0x68-0x6f */ 97 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, /* 0x70-0x77 */ 98 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */ 99 }; 100 101 static const unsigned char charset2upper[256] = { 102 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, /* 0x00-0x07 */ 103 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, /* 0x08-0x0f */ 104 0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17, /* 0x10-0x17 */ 105 0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f, /* 0x18-0x1f */ 106 0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27, /* 0x20-0x27 */ 107 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f, /* 0x28-0x2f */ 108 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* 0x30-0x37 */ 109 0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, /* 0x38-0x3f */ 110 0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x40-0x47 */ 111 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x48-0x4f */ 112 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x50-0x57 */ 113 0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f, /* 0x58-0x5f */ 114 0x60, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* 0x60-0x67 */ 115 0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, /* 0x68-0x6f */ 116 0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, /* 0x70-0x77 */ 117 0x58, 0x59, 0x5a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, /* 0x78-0x7f */ 118 }; 119 120 static int uni2char(wchar_t uni, unsigned char *out, int boundlen) 121 { 122 const unsigned char *uni2charset; 123 unsigned char cl = uni & 0x00ff; 124 unsigned char ch = (uni & 0xff00) >> 8; 125 126 if (boundlen <= 0) 127 return -ENAMETOOLONG; 128 129 uni2charset = page_uni2charset[ch]; 130 if (uni2charset && uni2charset[cl]) 131 out[0] = uni2charset[cl]; 132 else 133 return -EINVAL; 134 return 1; 135 } 136 137 static int char2uni(const unsigned char *rawstring, int boundlen, wchar_t *uni) 138 { 139 *uni = charset2uni[*rawstring]; 140 if (*uni == 0x0000) 141 return -EINVAL; 142 return 1; 143 } 144 145 static struct nls_table table = { 146 .charset = "ascii", 147 .uni2char = uni2char, 148 .char2uni = char2uni, 149 .charset2lower = charset2lower, 150 .charset2upper = charset2upper, 151 }; 152 153 static int __init init_nls_ascii(void) 154 { 155 return register_nls(&table); 156 } 157 158 static void __exit exit_nls_ascii(void) 159 { 160 unregister_nls(&table); 161 } 162 163 module_init(init_nls_ascii) 164 module_exit(exit_nls_ascii) 165 166 MODULE_LICENSE("Dual BSD/GPL"); 167