Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
Uwe Zeisberger | f30c226 | 2006-10-03 23:01:26 +0200 | [diff] [blame] | 2 | * linux/fs/nls/nls_euc-jp.c |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | * |
| 4 | * Added `OSF/JVC Recommended Code Set Conversion Specification |
| 5 | * between Japanese EUC and Shift-JIS' support: <hirofumi@mail.parknet.co.jp> |
| 6 | * (http://www.opengroup.or.jp/jvc/cde/sjis-euc-e.html) |
| 7 | */ |
| 8 | |
| 9 | #include <linux/module.h> |
| 10 | #include <linux/kernel.h> |
| 11 | #include <linux/string.h> |
| 12 | #include <linux/nls.h> |
| 13 | #include <linux/errno.h> |
| 14 | |
| 15 | static struct nls_table *p_nls; |
| 16 | |
| 17 | #define IS_SJIS_LOW_BYTE(l) ((0x40 <= (l)) && ((l) <= 0xFC) && ((l) != 0x7F)) |
| 18 | /* JIS X 0208 (include NEC spesial characters) */ |
| 19 | #define IS_SJIS_JISX0208(h, l) ((((0x81 <= (h)) && ((h) <= 0x9F)) \ |
| 20 | || ((0xE0 <= (h)) && ((h) <= 0xEA))) \ |
| 21 | && IS_SJIS_LOW_BYTE(l)) |
| 22 | #define IS_SJIS_JISX0201KANA(c) ((0xA1 <= (c)) && ((c) <= 0xDF)) |
| 23 | #define IS_SJIS_UDC_LOW(h, l) (((0xF0 <= (h)) && ((h) <= 0xF4)) \ |
| 24 | && IS_SJIS_LOW_BYTE(l)) |
| 25 | #define IS_SJIS_UDC_HI(h, l) (((0xF5 <= (h)) && ((h) <= 0xF9)) \ |
| 26 | && IS_SJIS_LOW_BYTE(l)) |
| 27 | #define IS_SJIS_IBM(h, l) (((0xFA <= (h)) && ((h) <= 0xFC)) \ |
| 28 | && IS_SJIS_LOW_BYTE(l)) |
| 29 | #define IS_SJIS_NECIBM(h, l) (((0xED <= (h)) && ((h) <= 0xEE)) \ |
| 30 | && IS_SJIS_LOW_BYTE(l)) |
| 31 | #define MAP_SJIS2EUC(sjis_hi, sjis_lo, sjis_p, euc_hi, euc_lo, euc_p) { \ |
| 32 | if ((sjis_lo) >= 0x9F) { \ |
| 33 | (euc_hi) = (sjis_hi) * 2 - (((sjis_p) * 2 - (euc_p)) - 1); \ |
| 34 | (euc_lo) = (sjis_lo) + 2; \ |
| 35 | } else { \ |
| 36 | (euc_hi) = (sjis_hi) * 2 - ((sjis_p) * 2 - (euc_p)); \ |
| 37 | (euc_lo) = (sjis_lo) + ((sjis_lo) >= 0x7F ? 0x60 : 0x61); \ |
| 38 | } \ |
| 39 | } while(0) |
| 40 | |
| 41 | #define SS2 (0x8E) /* Single Shift 2 */ |
| 42 | #define SS3 (0x8F) /* Single Shift 3 */ |
| 43 | #define IS_EUC_BYTE(c) ((0xA1 <= (c)) && ((c) <= 0xFE)) |
| 44 | #define IS_EUC_JISX0208(h, l) (IS_EUC_BYTE(h) && IS_EUC_BYTE(l)) |
| 45 | #define IS_EUC_JISX0201KANA(h, l) (((h) == SS2) && (0xA1 <= (l) && (l) <= 0xDF)) |
| 46 | #define IS_EUC_UDC_LOW(h, l) (((0xF5 <= (h)) && ((h) <= 0xFE)) \ |
| 47 | && IS_EUC_BYTE(l)) |
| 48 | #define IS_EUC_UDC_HI(h, l) IS_EUC_UDC_LOW(h, l) /* G3 block */ |
| 49 | #define MAP_EUC2SJIS(euc_hi, euc_lo, euc_p, sjis_hi, sjis_lo, sjis_p) { \ |
| 50 | if ((euc_hi) & 1) { \ |
| 51 | (sjis_hi) = (euc_hi) / 2 + ((sjis_p) - (euc_p) / 2); \ |
| 52 | (sjis_lo) = (euc_lo) - ((euc_lo) >= 0xE0 ? 0x60 : 0x61); \ |
| 53 | } else { \ |
| 54 | (sjis_hi) = (euc_hi) / 2 + (((sjis_p) - (euc_p) / 2) - 1); \ |
| 55 | (sjis_lo) = (euc_lo) - 2; \ |
| 56 | } \ |
| 57 | } while(0) |
| 58 | |
| 59 | /* SJIS IBM extended characters to EUC map */ |
| 60 | static unsigned char sjisibm2euc_map[][2] = { |
| 61 | {0xF3, 0xF3}, {0xF3, 0xF4}, {0xF3, 0xF5}, {0xF3, 0xF6}, {0xF3, 0xF7}, |
| 62 | {0xF3, 0xF8}, {0xF3, 0xF9}, {0xF3, 0xFA}, {0xF3, 0xFB}, {0xF3, 0xFC}, |
| 63 | {0xF3, 0xFD}, {0xF3, 0xFE}, {0xF4, 0xA1}, {0xF4, 0xA2}, {0xF4, 0xA3}, |
| 64 | {0xF4, 0xA4}, {0xF4, 0xA5}, {0xF4, 0xA6}, {0xF4, 0xA7}, {0xF4, 0xA8}, |
| 65 | {0xA2, 0xCC}, {0xA2, 0xC3}, {0xF4, 0xA9}, {0xF4, 0xAA}, {0xF4, 0xAB}, |
| 66 | {0xF4, 0xAC}, {0xF4, 0xAD}, {0xA2, 0xE8}, {0xD4, 0xE3}, {0xDC, 0xDF}, |
| 67 | {0xE4, 0xE9}, {0xE3, 0xF8}, {0xD9, 0xA1}, {0xB1, 0xBB}, {0xF4, 0xAE}, |
| 68 | {0xC2, 0xAD}, {0xC3, 0xFC}, {0xE4, 0xD0}, {0xC2, 0xBF}, {0xBC, 0xF4}, |
| 69 | {0xB0, 0xA9}, {0xB0, 0xC8}, {0xF4, 0xAF}, {0xB0, 0xD2}, {0xB0, 0xD4}, |
| 70 | {0xB0, 0xE3}, {0xB0, 0xEE}, {0xB1, 0xA7}, {0xB1, 0xA3}, {0xB1, 0xAC}, |
| 71 | {0xB1, 0xA9}, {0xB1, 0xBE}, {0xB1, 0xDF}, {0xB1, 0xD8}, {0xB1, 0xC8}, |
| 72 | {0xB1, 0xD7}, {0xB1, 0xE3}, {0xB1, 0xF4}, {0xB1, 0xE1}, {0xB2, 0xA3}, |
| 73 | {0xF4, 0xB0}, {0xB2, 0xBB}, {0xB2, 0xE6}, {0x00, 0x00}, {0xB2, 0xED}, |
| 74 | {0xB2, 0xF5}, {0xB2, 0xFC}, {0xF4, 0xB1}, {0xB3, 0xB5}, {0xB3, 0xD8}, |
| 75 | {0xB3, 0xDB}, {0xB3, 0xE5}, {0xB3, 0xEE}, {0xB3, 0xFB}, {0xF4, 0xB2}, |
| 76 | {0xF4, 0xB3}, {0xB4, 0xC0}, {0xB4, 0xC7}, {0xB4, 0xD0}, {0xB4, 0xDE}, |
| 77 | {0xF4, 0xB4}, {0xB5, 0xAA}, {0xF4, 0xB5}, {0xB5, 0xAF}, {0xB5, 0xC4}, |
| 78 | {0xB5, 0xE8}, {0xF4, 0xB6}, {0xB7, 0xC2}, {0xB7, 0xE4}, {0xB7, 0xE8}, |
| 79 | {0xB7, 0xE7}, {0xF4, 0xB7}, {0xF4, 0xB8}, {0xF4, 0xB9}, {0xB8, 0xCE}, |
| 80 | {0xB8, 0xE1}, {0xB8, 0xF5}, {0xB8, 0xF7}, {0xB8, 0xF8}, {0xB8, 0xFC}, |
| 81 | {0xB9, 0xAF}, {0xB9, 0xB7}, {0xBA, 0xBE}, {0xBA, 0xDB}, {0xCD, 0xAA}, |
| 82 | {0xBA, 0xE1}, {0xF4, 0xBA}, {0xBA, 0xEB}, {0xBB, 0xB3}, {0xBB, 0xB8}, |
| 83 | {0xF4, 0xBB}, {0xBB, 0xCA}, {0xF4, 0xBC}, {0xF4, 0xBD}, {0xBB, 0xD0}, |
| 84 | {0xBB, 0xDE}, {0xBB, 0xF4}, {0xBB, 0xF5}, {0xBB, 0xF9}, {0xBC, 0xE4}, |
| 85 | {0xBC, 0xED}, {0xBC, 0xFE}, {0xF4, 0xBE}, {0xBD, 0xC2}, {0xBD, 0xE7}, |
| 86 | {0xF4, 0xBF}, {0xBD, 0xF0}, {0xBE, 0xB0}, {0xBE, 0xAC}, {0xF4, 0xC0}, |
| 87 | {0xBE, 0xB3}, {0xBE, 0xBD}, {0xBE, 0xCD}, {0xBE, 0xC9}, {0xBE, 0xE4}, |
| 88 | {0xBF, 0xA8}, {0xBF, 0xC9}, {0xC0, 0xC4}, {0xC0, 0xE4}, {0xC0, 0xF4}, |
| 89 | {0xC1, 0xA6}, {0xF4, 0xC1}, {0xC1, 0xF5}, {0xC1, 0xFC}, {0xF4, 0xC2}, |
| 90 | {0xC1, 0xF8}, {0xC2, 0xAB}, {0xC2, 0xA1}, {0xC2, 0xA5}, {0xF4, 0xC3}, |
| 91 | {0xC2, 0xB8}, {0xC2, 0xBA}, {0xF4, 0xC4}, {0xC2, 0xC4}, {0xC2, 0xD2}, |
| 92 | {0xC2, 0xD7}, {0xC2, 0xDB}, {0xC2, 0xDE}, {0xC2, 0xED}, {0xC2, 0xF0}, |
| 93 | {0xF4, 0xC5}, {0xC3, 0xA1}, {0xC3, 0xB5}, {0xC3, 0xC9}, {0xC3, 0xB9}, |
| 94 | {0xF4, 0xC6}, {0xC3, 0xD8}, {0xC3, 0xFE}, {0xF4, 0xC7}, {0xC4, 0xCC}, |
| 95 | {0xF4, 0xC8}, {0xC4, 0xD9}, {0xC4, 0xEA}, {0xC4, 0xFD}, {0xF4, 0xC9}, |
| 96 | {0xC5, 0xA7}, {0xC5, 0xB5}, {0xC5, 0xB6}, {0xF4, 0xCA}, {0xC5, 0xD5}, |
| 97 | {0xC6, 0xB8}, {0xC6, 0xD7}, {0xC6, 0xE0}, {0xC6, 0xEA}, {0xC6, 0xE3}, |
| 98 | {0xC7, 0xA1}, {0xC7, 0xAB}, {0xC7, 0xC7}, {0xC7, 0xC3}, {0xC7, 0xCB}, |
| 99 | {0xC7, 0xCF}, {0xC7, 0xD9}, {0xF4, 0xCB}, {0xF4, 0xCC}, {0xC7, 0xE6}, |
| 100 | {0xC7, 0xEE}, {0xC7, 0xFC}, {0xC7, 0xEB}, {0xC7, 0xF0}, {0xC8, 0xB1}, |
| 101 | {0xC8, 0xE5}, {0xC8, 0xF8}, {0xC9, 0xA6}, {0xC9, 0xAB}, {0xC9, 0xAD}, |
| 102 | {0xF4, 0xCD}, {0xC9, 0xCA}, {0xC9, 0xD3}, {0xC9, 0xE9}, {0xC9, 0xE3}, |
| 103 | {0xC9, 0xFC}, {0xC9, 0xF4}, {0xC9, 0xF5}, {0xF4, 0xCE}, {0xCA, 0xB3}, |
| 104 | {0xCA, 0xBD}, {0xCA, 0xEF}, {0xCA, 0xF1}, {0xCB, 0xAE}, {0xF4, 0xCF}, |
| 105 | {0xCB, 0xCA}, {0xCB, 0xE6}, {0xCB, 0xEA}, {0xCB, 0xF0}, {0xCB, 0xF4}, |
| 106 | {0xCB, 0xEE}, {0xCC, 0xA5}, {0xCB, 0xF9}, {0xCC, 0xAB}, {0xCC, 0xAE}, |
| 107 | {0xCC, 0xAD}, {0xCC, 0xB2}, {0xCC, 0xC2}, {0xCC, 0xD0}, {0xCC, 0xD9}, |
| 108 | {0xF4, 0xD0}, {0xCD, 0xBB}, {0xF4, 0xD1}, {0xCE, 0xBB}, {0xF4, 0xD2}, |
| 109 | {0xCE, 0xBA}, {0xCE, 0xC3}, {0xF4, 0xD3}, {0xCE, 0xF2}, {0xB3, 0xDD}, |
| 110 | {0xCF, 0xD5}, {0xCF, 0xE2}, {0xCF, 0xE9}, {0xCF, 0xED}, {0xF4, 0xD4}, |
| 111 | {0xF4, 0xD5}, {0xF4, 0xD6}, {0x00, 0x00}, {0xF4, 0xD7}, {0xD0, 0xE5}, |
| 112 | {0xF4, 0xD8}, {0xD0, 0xE9}, {0xD1, 0xE8}, {0xF4, 0xD9}, {0xF4, 0xDA}, |
| 113 | {0xD1, 0xEC}, {0xD2, 0xBB}, {0xF4, 0xDB}, {0xD3, 0xE1}, {0xD3, 0xE8}, |
| 114 | {0xD4, 0xA7}, {0xF4, 0xDC}, {0xF4, 0xDD}, {0xD4, 0xD4}, {0xD4, 0xF2}, |
| 115 | {0xD5, 0xAE}, {0xF4, 0xDE}, {0xD7, 0xDE}, {0xF4, 0xDF}, {0xD8, 0xA2}, |
| 116 | {0xD8, 0xB7}, {0xD8, 0xC1}, {0xD8, 0xD1}, {0xD8, 0xF4}, {0xD9, 0xC6}, |
| 117 | {0xD9, 0xC8}, {0xD9, 0xD1}, {0xF4, 0xE0}, {0xF4, 0xE1}, {0xF4, 0xE2}, |
| 118 | {0xF4, 0xE3}, {0xF4, 0xE4}, {0xDC, 0xD3}, {0xDD, 0xC8}, {0xDD, 0xD4}, |
| 119 | {0xDD, 0xEA}, {0xDD, 0xFA}, {0xDE, 0xA4}, {0xDE, 0xB0}, {0xF4, 0xE5}, |
| 120 | {0xDE, 0xB5}, {0xDE, 0xCB}, {0xF4, 0xE6}, {0xDF, 0xB9}, {0xF4, 0xE7}, |
| 121 | {0xDF, 0xC3}, {0xF4, 0xE8}, {0xF4, 0xE9}, {0xE0, 0xD9}, {0xF4, 0xEA}, |
| 122 | {0xF4, 0xEB}, {0xE1, 0xE2}, {0xF4, 0xEC}, {0xF4, 0xED}, {0xF4, 0xEE}, |
| 123 | {0xE2, 0xC7}, {0xE3, 0xA8}, {0xE3, 0xA6}, {0xE3, 0xA9}, {0xE3, 0xAF}, |
| 124 | {0xE3, 0xB0}, {0xE3, 0xAA}, {0xE3, 0xAB}, {0xE3, 0xBC}, {0xE3, 0xC1}, |
| 125 | {0xE3, 0xBF}, {0xE3, 0xD5}, {0xE3, 0xD8}, {0xE3, 0xD6}, {0xE3, 0xDF}, |
| 126 | {0xE3, 0xE3}, {0xE3, 0xE1}, {0xE3, 0xD4}, {0xE3, 0xE9}, {0xE4, 0xA6}, |
| 127 | {0xE3, 0xF1}, {0xE3, 0xF2}, {0xE4, 0xCB}, {0xE4, 0xC1}, {0xE4, 0xC3}, |
| 128 | {0xE4, 0xBE}, {0xF4, 0xEF}, {0xE4, 0xC0}, {0xE4, 0xC7}, {0xE4, 0xBF}, |
| 129 | {0xE4, 0xE0}, {0xE4, 0xDE}, {0xE4, 0xD1}, {0xF4, 0xF0}, {0xE4, 0xDC}, |
| 130 | {0xE4, 0xD2}, {0xE4, 0xDB}, {0xE4, 0xD4}, {0xE4, 0xFA}, {0xE4, 0xEF}, |
| 131 | {0xE5, 0xB3}, {0xE5, 0xBF}, {0xE5, 0xC9}, {0xE5, 0xD0}, {0xE5, 0xE2}, |
| 132 | {0xE5, 0xEA}, {0xE5, 0xEB}, {0xF4, 0xF1}, {0xF4, 0xF2}, {0xF4, 0xF3}, |
| 133 | {0xE6, 0xE8}, {0xE6, 0xEF}, {0xE7, 0xAC}, {0xF4, 0xF4}, {0xE7, 0xAE}, |
| 134 | {0xF4, 0xF5}, {0xE7, 0xB1}, {0xF4, 0xF6}, {0xE7, 0xB2}, {0xE8, 0xB1}, |
| 135 | {0xE8, 0xB6}, {0xF4, 0xF7}, {0xF4, 0xF8}, {0xE8, 0xDD}, {0xF4, 0xF9}, |
| 136 | {0xF4, 0xFA}, {0xE9, 0xD1}, {0xF4, 0xFB}, {0xE9, 0xED}, {0xEA, 0xCD}, |
| 137 | {0xF4, 0xFC}, {0xEA, 0xDB}, {0xEA, 0xE6}, {0xEA, 0xEA}, {0xEB, 0xA5}, |
| 138 | {0xEB, 0xFB}, {0xEB, 0xFA}, {0xF4, 0xFD}, {0xEC, 0xD6}, {0xF4, 0xFE}, |
| 139 | }; |
| 140 | |
| 141 | #define IS_EUC_IBM2JISX0208(h, l) \ |
| 142 | (((h) == 0xA2 && (l) == 0xCC) || ((h) == 0xA2 && (l) == 0xE8)) |
| 143 | |
| 144 | /* EUC to SJIS IBM extended characters map (G3 JIS X 0212 block) */ |
| 145 | static struct { |
| 146 | unsigned short euc; |
| 147 | unsigned char sjis[2]; |
| 148 | } euc2sjisibm_jisx0212_map[] = { |
| 149 | {0xA2C3, {0xFA, 0x55}}, {0xB0A9, {0xFA, 0x68}}, {0xB0C8, {0xFA, 0x69}}, |
| 150 | {0xB0D2, {0xFA, 0x6B}}, {0xB0D4, {0xFA, 0x6C}}, {0xB0E3, {0xFA, 0x6D}}, |
| 151 | {0xB0EE, {0xFA, 0x6E}}, {0xB1A3, {0xFA, 0x70}}, {0xB1A7, {0xFA, 0x6F}}, |
| 152 | {0xB1A9, {0xFA, 0x72}}, {0xB1AC, {0xFA, 0x71}}, {0xB1BB, {0xFA, 0x61}}, |
| 153 | {0xB1BE, {0xFA, 0x73}}, {0xB1C8, {0xFA, 0x76}}, {0xB1D7, {0xFA, 0x77}}, |
| 154 | {0xB1D8, {0xFA, 0x75}}, {0xB1DF, {0xFA, 0x74}}, {0xB1E1, {0xFA, 0x7A}}, |
| 155 | {0xB1E3, {0xFA, 0x78}}, {0xB1F4, {0xFA, 0x79}}, {0xB2A3, {0xFA, 0x7B}}, |
| 156 | {0xB2BB, {0xFA, 0x7D}}, {0xB2E6, {0xFA, 0x7E}}, {0xB2ED, {0xFA, 0x80}}, |
| 157 | {0xB2F5, {0xFA, 0x81}}, {0xB2FC, {0xFA, 0x82}}, {0xB3B5, {0xFA, 0x84}}, |
| 158 | {0xB3D8, {0xFA, 0x85}}, {0xB3DB, {0xFA, 0x86}}, {0xB3DD, {0xFB, 0x77}}, |
| 159 | {0xB3E5, {0xFA, 0x87}}, {0xB3EE, {0xFA, 0x88}}, {0xB3FB, {0xFA, 0x89}}, |
| 160 | {0xB4C0, {0xFA, 0x8C}}, {0xB4C7, {0xFA, 0x8D}}, {0xB4D0, {0xFA, 0x8E}}, |
| 161 | {0xB4DE, {0xFA, 0x8F}}, {0xB5AA, {0xFA, 0x91}}, {0xB5AF, {0xFA, 0x93}}, |
| 162 | {0xB5C4, {0xFA, 0x94}}, {0xB5E8, {0xFA, 0x95}}, {0xB7C2, {0xFA, 0x97}}, |
| 163 | {0xB7E4, {0xFA, 0x98}}, {0xB7E7, {0xFA, 0x9A}}, {0xB7E8, {0xFA, 0x99}}, |
| 164 | {0xB8CE, {0xFA, 0x9E}}, {0xB8E1, {0xFA, 0x9F}}, {0xB8F5, {0xFA, 0xA0}}, |
| 165 | {0xB8F7, {0xFA, 0xA1}}, {0xB8F8, {0xFA, 0xA2}}, {0xB8FC, {0xFA, 0xA3}}, |
| 166 | {0xB9AF, {0xFA, 0xA4}}, {0xB9B7, {0xFA, 0xA5}}, {0xBABE, {0xFA, 0xA6}}, |
| 167 | {0xBADB, {0xFA, 0xA7}}, {0xBAE1, {0xFA, 0xA9}}, {0xBAEB, {0xFA, 0xAB}}, |
| 168 | {0xBBB3, {0xFA, 0xAC}}, {0xBBB8, {0xFA, 0xAD}}, {0xBBCA, {0xFA, 0xAF}}, |
| 169 | {0xBBD0, {0xFA, 0xB2}}, {0xBBDE, {0xFA, 0xB3}}, {0xBBF4, {0xFA, 0xB4}}, |
| 170 | {0xBBF5, {0xFA, 0xB5}}, {0xBBF9, {0xFA, 0xB6}}, {0xBCE4, {0xFA, 0xB7}}, |
| 171 | {0xBCED, {0xFA, 0xB8}}, {0xBCF4, {0xFA, 0x67}}, {0xBCFE, {0xFA, 0xB9}}, |
| 172 | {0xBDC2, {0xFA, 0xBB}}, {0xBDE7, {0xFA, 0xBC}}, {0xBDF0, {0xFA, 0xBE}}, |
| 173 | {0xBEAC, {0xFA, 0xC0}}, {0xBEB0, {0xFA, 0xBF}}, {0xBEB3, {0xFA, 0xC2}}, |
| 174 | {0xBEBD, {0xFA, 0xC3}}, {0xBEC9, {0xFA, 0xC5}}, {0xBECD, {0xFA, 0xC4}}, |
| 175 | {0xBEE4, {0xFA, 0xC6}}, {0xBFA8, {0xFA, 0xC7}}, {0xBFC9, {0xFA, 0xC8}}, |
| 176 | {0xC0C4, {0xFA, 0xC9}}, {0xC0E4, {0xFA, 0xCA}}, {0xC0F4, {0xFA, 0xCB}}, |
| 177 | {0xC1A6, {0xFA, 0xCC}}, {0xC1F5, {0xFA, 0xCE}}, {0xC1F8, {0xFA, 0xD1}}, |
| 178 | {0xC1FC, {0xFA, 0xCF}}, {0xC2A1, {0xFA, 0xD3}}, {0xC2A5, {0xFA, 0xD4}}, |
| 179 | {0xC2AB, {0xFA, 0xD2}}, {0xC2AD, {0xFA, 0x63}}, {0xC2B8, {0xFA, 0xD6}}, |
| 180 | {0xC2BA, {0xFA, 0xD7}}, {0xC2BF, {0xFA, 0x66}}, {0xC2C4, {0xFA, 0xD9}}, |
| 181 | {0xC2D2, {0xFA, 0xDA}}, {0xC2D7, {0xFA, 0xDB}}, {0xC2DB, {0xFA, 0xDC}}, |
| 182 | {0xC2DE, {0xFA, 0xDD}}, {0xC2ED, {0xFA, 0xDE}}, {0xC2F0, {0xFA, 0xDF}}, |
| 183 | {0xC3A1, {0xFA, 0xE1}}, {0xC3B5, {0xFA, 0xE2}}, {0xC3B9, {0xFA, 0xE4}}, |
| 184 | {0xC3C9, {0xFA, 0xE3}}, {0xC3D8, {0xFA, 0xE6}}, {0xC3FC, {0xFA, 0x64}}, |
| 185 | {0xC3FE, {0xFA, 0xE7}}, {0xC4CC, {0xFA, 0xE9}}, {0xC4D9, {0xFA, 0xEB}}, |
| 186 | {0xC4EA, {0xFA, 0xEC}}, {0xC4FD, {0xFA, 0xED}}, {0xC5A7, {0xFA, 0xEF}}, |
| 187 | {0xC5B5, {0xFA, 0xF0}}, {0xC5B6, {0xFA, 0xF1}}, {0xC5D5, {0xFA, 0xF3}}, |
| 188 | {0xC6B8, {0xFA, 0xF4}}, {0xC6D7, {0xFA, 0xF5}}, {0xC6E0, {0xFA, 0xF6}}, |
| 189 | {0xC6E3, {0xFA, 0xF8}}, {0xC6EA, {0xFA, 0xF7}}, {0xC7A1, {0xFA, 0xF9}}, |
| 190 | {0xC7AB, {0xFA, 0xFA}}, {0xC7C3, {0xFA, 0xFC}}, {0xC7C7, {0xFA, 0xFB}}, |
| 191 | {0xC7CB, {0xFB, 0x40}}, {0xC7CF, {0xFB, 0x41}}, {0xC7D9, {0xFB, 0x42}}, |
| 192 | {0xC7E6, {0xFB, 0x45}}, {0xC7EB, {0xFB, 0x48}}, {0xC7EE, {0xFB, 0x46}}, |
| 193 | {0xC7F0, {0xFB, 0x49}}, {0xC7FC, {0xFB, 0x47}}, {0xC8B1, {0xFB, 0x4A}}, |
| 194 | {0xC8E5, {0xFB, 0x4B}}, {0xC8F8, {0xFB, 0x4C}}, {0xC9A6, {0xFB, 0x4D}}, |
| 195 | {0xC9AB, {0xFB, 0x4E}}, {0xC9AD, {0xFB, 0x4F}}, {0xC9CA, {0xFB, 0x51}}, |
| 196 | {0xC9D3, {0xFB, 0x52}}, {0xC9E3, {0xFB, 0x54}}, {0xC9E9, {0xFB, 0x53}}, |
| 197 | {0xC9F4, {0xFB, 0x56}}, {0xC9F5, {0xFB, 0x57}}, {0xC9FC, {0xFB, 0x55}}, |
| 198 | {0xCAB3, {0xFB, 0x59}}, {0xCABD, {0xFB, 0x5A}}, {0xCAEF, {0xFB, 0x5B}}, |
| 199 | {0xCAF1, {0xFB, 0x5C}}, {0xCBAE, {0xFB, 0x5D}}, {0xCBCA, {0xFB, 0x5F}}, |
| 200 | {0xCBE6, {0xFB, 0x60}}, {0xCBEA, {0xFB, 0x61}}, {0xCBEE, {0xFB, 0x64}}, |
| 201 | {0xCBF0, {0xFB, 0x62}}, {0xCBF4, {0xFB, 0x63}}, {0xCBF9, {0xFB, 0x66}}, |
| 202 | {0xCCA5, {0xFB, 0x65}}, {0xCCAB, {0xFB, 0x67}}, {0xCCAD, {0xFB, 0x69}}, |
| 203 | {0xCCAE, {0xFB, 0x68}}, {0xCCB2, {0xFB, 0x6A}}, {0xCCC2, {0xFB, 0x6B}}, |
| 204 | {0xCCD0, {0xFB, 0x6C}}, {0xCCD9, {0xFB, 0x6D}}, {0xCDAA, {0xFA, 0xA8}}, |
| 205 | {0xCDBB, {0xFB, 0x6F}}, {0xCEBA, {0xFB, 0x73}}, {0xCEBB, {0xFB, 0x71}}, |
| 206 | {0xCEC3, {0xFB, 0x74}}, {0xCEF2, {0xFB, 0x76}}, {0xCFD5, {0xFB, 0x78}}, |
| 207 | {0xCFE2, {0xFB, 0x79}}, {0xCFE9, {0xFB, 0x7A}}, {0xCFED, {0xFB, 0x7B}}, |
| 208 | {0xD0E5, {0xFB, 0x81}}, {0xD0E9, {0xFB, 0x83}}, {0xD1E8, {0xFB, 0x84}}, |
| 209 | {0xD1EC, {0xFB, 0x87}}, {0xD2BB, {0xFB, 0x88}}, {0xD3E1, {0xFB, 0x8A}}, |
| 210 | {0xD3E8, {0xFB, 0x8B}}, {0xD4A7, {0xFB, 0x8C}}, {0xD4D4, {0xFB, 0x8F}}, |
| 211 | {0xD4E3, {0xFA, 0x5C}}, {0xD4F2, {0xFB, 0x90}}, {0xD5AE, {0xFB, 0x91}}, |
| 212 | {0xD7DE, {0xFB, 0x93}}, {0xD8A2, {0xFB, 0x95}}, {0xD8B7, {0xFB, 0x96}}, |
| 213 | {0xD8C1, {0xFB, 0x97}}, {0xD8D1, {0xFB, 0x98}}, {0xD8F4, {0xFB, 0x99}}, |
| 214 | {0xD9A1, {0xFA, 0x60}}, {0xD9C6, {0xFB, 0x9A}}, {0xD9C8, {0xFB, 0x9B}}, |
| 215 | {0xD9D1, {0xFB, 0x9C}}, {0xDCD3, {0xFB, 0xA2}}, {0xDCDF, {0xFA, 0x5D}}, |
| 216 | {0xDDC8, {0xFB, 0xA3}}, {0xDDD4, {0xFB, 0xA4}}, {0xDDEA, {0xFB, 0xA5}}, |
| 217 | {0xDDFA, {0xFB, 0xA6}}, {0xDEA4, {0xFB, 0xA7}}, {0xDEB0, {0xFB, 0xA8}}, |
| 218 | {0xDEB5, {0xFB, 0xAA}}, {0xDECB, {0xFB, 0xAB}}, {0xDFB9, {0xFB, 0xAD}}, |
| 219 | {0xDFC3, {0xFB, 0xAF}}, {0xE0D9, {0xFB, 0xB2}}, {0xE1E2, {0xFB, 0xB5}}, |
| 220 | {0xE2C7, {0xFB, 0xB9}}, {0xE3A6, {0xFB, 0xBB}}, {0xE3A8, {0xFB, 0xBA}}, |
| 221 | {0xE3A9, {0xFB, 0xBC}}, {0xE3AA, {0xFB, 0xBF}}, {0xE3AB, {0xFB, 0xC0}}, |
| 222 | {0xE3AF, {0xFB, 0xBD}}, {0xE3B0, {0xFB, 0xBE}}, {0xE3BC, {0xFB, 0xC1}}, |
| 223 | {0xE3BF, {0xFB, 0xC3}}, {0xE3C1, {0xFB, 0xC2}}, {0xE3D4, {0xFB, 0xCA}}, |
| 224 | {0xE3D5, {0xFB, 0xC4}}, {0xE3D6, {0xFB, 0xC6}}, {0xE3D8, {0xFB, 0xC5}}, |
| 225 | {0xE3DF, {0xFB, 0xC7}}, {0xE3E1, {0xFB, 0xC9}}, {0xE3E3, {0xFB, 0xC8}}, |
| 226 | {0xE3E9, {0xFB, 0xCB}}, {0xE3F1, {0xFB, 0xCD}}, {0xE3F2, {0xFB, 0xCE}}, |
| 227 | {0xE3F8, {0xFA, 0x5F}}, {0xE4A6, {0xFB, 0xCC}}, {0xE4BE, {0xFB, 0xD2}}, |
| 228 | {0xE4BF, {0xFB, 0xD6}}, {0xE4C0, {0xFB, 0xD4}}, {0xE4C1, {0xFB, 0xD0}}, |
| 229 | {0xE4C3, {0xFB, 0xD1}}, {0xE4C7, {0xFB, 0xD5}}, {0xE4CB, {0xFB, 0xCF}}, |
| 230 | {0xE4D0, {0xFA, 0x65}}, {0xE4D1, {0xFB, 0xD9}}, {0xE4D2, {0xFB, 0xDC}}, |
| 231 | {0xE4D4, {0xFB, 0xDE}}, {0xE4DB, {0xFB, 0xDD}}, {0xE4DC, {0xFB, 0xDB}}, |
| 232 | {0xE4DE, {0xFB, 0xD8}}, {0xE4E0, {0xFB, 0xD7}}, {0xE4E9, {0xFA, 0x5E}}, |
| 233 | {0xE4EF, {0xFB, 0xE0}}, {0xE4FA, {0xFB, 0xDF}}, {0xE5B3, {0xFB, 0xE1}}, |
| 234 | {0xE5BF, {0xFB, 0xE2}}, {0xE5C9, {0xFB, 0xE3}}, {0xE5D0, {0xFB, 0xE4}}, |
| 235 | {0xE5E2, {0xFB, 0xE5}}, {0xE5EA, {0xFB, 0xE6}}, {0xE5EB, {0xFB, 0xE7}}, |
| 236 | {0xE6E8, {0xFB, 0xEB}}, {0xE6EF, {0xFB, 0xEC}}, {0xE7AC, {0xFB, 0xED}}, |
| 237 | {0xE7AE, {0xFB, 0xEF}}, {0xE7B1, {0xFB, 0xF1}}, {0xE7B2, {0xFB, 0xF3}}, |
| 238 | {0xE8B1, {0xFB, 0xF4}}, {0xE8B6, {0xFB, 0xF5}}, {0xE8DD, {0xFB, 0xF8}}, |
| 239 | {0xE9D1, {0xFB, 0xFB}}, {0xE9ED, {0xFC, 0x40}}, {0xEACD, {0xFC, 0x41}}, |
| 240 | {0xEADB, {0xFC, 0x43}}, {0xEAE6, {0xFC, 0x44}}, {0xEAEA, {0xFC, 0x45}}, |
| 241 | {0xEBA5, {0xFC, 0x46}}, {0xEBFA, {0xFC, 0x48}}, {0xEBFB, {0xFC, 0x47}}, |
| 242 | {0xECD6, {0xFC, 0x4A}}, |
| 243 | }; |
| 244 | |
| 245 | /* EUC to SJIS IBM extended characters map (G3 Upper block) */ |
| 246 | static unsigned char euc2sjisibm_g3upper_map[][2] = { |
| 247 | {0xFA, 0x40}, {0xFA, 0x41}, {0xFA, 0x42}, {0xFA, 0x43}, {0xFA, 0x44}, |
| 248 | {0xFA, 0x45}, {0xFA, 0x46}, {0xFA, 0x47}, {0xFA, 0x48}, {0xFA, 0x49}, |
| 249 | {0xFA, 0x4A}, {0xFA, 0x4B}, {0xFA, 0x4C}, {0xFA, 0x4D}, {0xFA, 0x4E}, |
| 250 | {0xFA, 0x4F}, {0xFA, 0x50}, {0xFA, 0x51}, {0xFA, 0x52}, {0xFA, 0x53}, |
| 251 | {0xFA, 0x56}, {0xFA, 0x57}, {0xFA, 0x58}, {0xFA, 0x59}, {0xFA, 0x5A}, |
| 252 | {0xFA, 0x62}, {0xFA, 0x6A}, {0xFA, 0x7C}, {0xFA, 0x83}, {0xFA, 0x8A}, |
| 253 | {0xFA, 0x8B}, {0xFA, 0x90}, {0xFA, 0x92}, {0xFA, 0x96}, {0xFA, 0x9B}, |
| 254 | {0xFA, 0x9C}, {0xFA, 0x9D}, {0xFA, 0xAA}, {0xFA, 0xAE}, {0xFA, 0xB0}, |
| 255 | {0xFA, 0xB1}, {0xFA, 0xBA}, {0xFA, 0xBD}, {0xFA, 0xC1}, {0xFA, 0xCD}, |
| 256 | {0xFA, 0xD0}, {0xFA, 0xD5}, {0xFA, 0xD8}, {0xFA, 0xE0}, {0xFA, 0xE5}, |
| 257 | {0xFA, 0xE8}, {0xFA, 0xEA}, {0xFA, 0xEE}, {0xFA, 0xF2}, {0xFB, 0x43}, |
| 258 | {0xFB, 0x44}, {0xFB, 0x50}, {0xFB, 0x58}, {0xFB, 0x5E}, {0xFB, 0x6E}, |
| 259 | {0xFB, 0x70}, {0xFB, 0x72}, {0xFB, 0x75}, {0xFB, 0x7C}, {0xFB, 0x7D}, |
| 260 | {0xFB, 0x7E}, {0xFB, 0x80}, {0xFB, 0x82}, {0xFB, 0x85}, {0xFB, 0x86}, |
| 261 | {0xFB, 0x89}, {0xFB, 0x8D}, {0xFB, 0x8E}, {0xFB, 0x92}, {0xFB, 0x94}, |
| 262 | {0xFB, 0x9D}, {0xFB, 0x9E}, {0xFB, 0x9F}, {0xFB, 0xA0}, {0xFB, 0xA1}, |
| 263 | {0xFB, 0xA9}, {0xFB, 0xAC}, {0xFB, 0xAE}, {0xFB, 0xB0}, {0xFB, 0xB1}, |
| 264 | {0xFB, 0xB3}, {0xFB, 0xB4}, {0xFB, 0xB6}, {0xFB, 0xB7}, {0xFB, 0xB8}, |
| 265 | {0xFB, 0xD3}, {0xFB, 0xDA}, {0xFB, 0xE8}, {0xFB, 0xE9}, {0xFB, 0xEA}, |
| 266 | {0xFB, 0xEE}, {0xFB, 0xF0}, {0xFB, 0xF2}, {0xFB, 0xF6}, {0xFB, 0xF7}, |
| 267 | {0xFB, 0xF9}, {0xFB, 0xFA}, {0xFB, 0xFC}, {0xFC, 0x42}, {0xFC, 0x49}, |
| 268 | {0xFC, 0x4B}, |
| 269 | }; |
| 270 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 271 | static inline int sjisibm2euc(unsigned char *euc, const unsigned char sjis_hi, |
| 272 | const unsigned char sjis_lo); |
| 273 | static inline int euc2sjisibm_jisx0212(unsigned char *sjis, const unsigned char euc_hi, |
| 274 | const unsigned char euc_lo); |
| 275 | static inline int euc2sjisibm_g3upper(unsigned char *sjis, const unsigned char euc_hi, |
| 276 | const unsigned char euc_lo); |
| 277 | static inline int euc2sjisibm(unsigned char *sjis, const unsigned char euc_hi, |
| 278 | const unsigned char euc_lo); |
| 279 | static inline int sjisnec2sjisibm(unsigned char *sjisibm, |
| 280 | const unsigned char sjisnec_hi, |
| 281 | const unsigned char sjisnec_lo); |
| 282 | |
| 283 | /* SJIS IBM extended characters to EUC */ |
| 284 | static inline int sjisibm2euc(unsigned char *euc, const unsigned char sjis_hi, |
| 285 | const unsigned char sjis_lo) |
| 286 | { |
| 287 | int index; |
| 288 | |
| 289 | index = ((sjis_hi - 0xFA) * (0xFD - 0x40)) + (sjis_lo - 0x40); |
| 290 | if (IS_EUC_IBM2JISX0208(sjisibm2euc_map[index][0], |
| 291 | sjisibm2euc_map[index][1])) { |
| 292 | euc[0] = sjisibm2euc_map[index][0]; |
| 293 | euc[1] = sjisibm2euc_map[index][1]; |
| 294 | return 2; |
| 295 | } else { |
| 296 | euc[0] = SS3; |
| 297 | euc[1] = sjisibm2euc_map[index][0]; |
| 298 | euc[2] = sjisibm2euc_map[index][1]; |
| 299 | return 3; |
| 300 | } |
| 301 | } |
| 302 | |
| 303 | /* EUC to SJIS IBM extended characters (G3 JIS X 0212 block) */ |
| 304 | static inline int euc2sjisibm_jisx0212(unsigned char *sjis, const unsigned char euc_hi, |
| 305 | const unsigned char euc_lo) |
| 306 | { |
| 307 | int index, min_index, max_index; |
| 308 | unsigned short euc; |
| 309 | |
| 310 | min_index = 0; |
Tobias Klauser | e8c96f8 | 2006-03-24 03:15:34 -0800 | [diff] [blame] | 311 | max_index = ARRAY_SIZE(euc2sjisibm_jisx0212_map) - 1; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | euc = (euc_hi << 8) | euc_lo; |
| 313 | |
| 314 | while (min_index <= max_index) { |
| 315 | index = (min_index + max_index) / 2; |
| 316 | if (euc < euc2sjisibm_jisx0212_map[index].euc) |
| 317 | max_index = index - 1; |
| 318 | else |
| 319 | min_index = index + 1; |
| 320 | if (euc == euc2sjisibm_jisx0212_map[index].euc) { |
| 321 | sjis[0] = euc2sjisibm_jisx0212_map[index].sjis[0]; |
| 322 | sjis[1] = euc2sjisibm_jisx0212_map[index].sjis[1]; |
| 323 | return 3; |
| 324 | } |
| 325 | } |
| 326 | return 0; |
| 327 | } |
| 328 | |
| 329 | /* EUC to SJIS IBM extended characters (G3 Upper block) */ |
| 330 | static inline int euc2sjisibm_g3upper(unsigned char *sjis, const unsigned char euc_hi, |
| 331 | const unsigned char euc_lo) |
| 332 | { |
| 333 | int index; |
| 334 | |
| 335 | if (euc_hi == 0xF3) |
| 336 | index = ((euc_hi << 8) | euc_lo) - 0xF3F3; |
| 337 | else |
| 338 | index = ((euc_hi << 8) | euc_lo) - 0xF4A1 + 12; |
| 339 | |
Tobias Klauser | e8c96f8 | 2006-03-24 03:15:34 -0800 | [diff] [blame] | 340 | if ((index < 0) || (index >= ARRAY_SIZE(euc2sjisibm_g3upper_map))) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 341 | return 0; |
| 342 | |
| 343 | sjis[0] = euc2sjisibm_g3upper_map[index][0]; |
| 344 | sjis[1] = euc2sjisibm_g3upper_map[index][1]; |
| 345 | |
| 346 | return 3; |
| 347 | } |
| 348 | |
| 349 | /* EUC to SJIS IBM extended characters (G3 block) */ |
| 350 | static inline int euc2sjisibm(unsigned char *sjis, const unsigned char euc_hi, |
| 351 | const unsigned char euc_lo) |
| 352 | { |
| 353 | int n; |
| 354 | |
| 355 | #if 0 |
| 356 | if ((euc_hi == 0xA2) && (euc_lo == 0xCC)) { |
| 357 | sjis[0] = 0xFA; |
| 358 | sjis[1] = 0x54; |
| 359 | return 2; |
| 360 | } else if ((euc_hi == 0xA2) && (euc_lo == 0xE8)) { |
| 361 | sjis[0] = 0xFA; |
| 362 | sjis[1] = 0x5B; |
| 363 | return 2; |
| 364 | } |
| 365 | #endif |
| 366 | if ((n = euc2sjisibm_g3upper(sjis, euc_hi, euc_lo))) { |
| 367 | return n; |
| 368 | } else if ((n = euc2sjisibm_jisx0212(sjis, euc_hi, euc_lo))) { |
| 369 | return n; |
| 370 | } |
| 371 | |
| 372 | return 0; |
| 373 | } |
| 374 | |
| 375 | /* NEC/IBM extended characters to IBM extended characters */ |
| 376 | static inline int sjisnec2sjisibm(unsigned char *sjisibm, |
| 377 | const unsigned char sjisnec_hi, |
| 378 | const unsigned char sjisnec_lo) |
| 379 | { |
| 380 | int count; |
| 381 | |
| 382 | if (! IS_SJIS_NECIBM(sjisnec_hi, sjisnec_lo)) |
| 383 | return 0; |
| 384 | |
| 385 | if ((sjisnec_hi == 0xEE) && (sjisnec_lo == 0xF9)) { |
| 386 | sjisibm[0] = 0x81; |
| 387 | sjisibm[1] = 0xCA; |
| 388 | return 2; |
| 389 | } |
| 390 | |
| 391 | if ((sjisnec_hi == 0xEE) && (sjisnec_lo >= 0xEF)) { |
| 392 | count = (sjisnec_hi << 8 | sjisnec_lo) |
| 393 | - (sjisnec_lo <= 0xF9 ? 0xEEEF : (0xEEEF - 10)); |
| 394 | } else { |
| 395 | count = (sjisnec_hi - 0xED) * (0xFC - 0x40) |
| 396 | + (sjisnec_lo - 0x40) + (0x5C - 0x40); |
| 397 | if (sjisnec_lo >= 0x7F) |
| 398 | count--; |
| 399 | } |
| 400 | |
| 401 | sjisibm[0] = 0xFA + (count / (0xFC - 0x40)); |
| 402 | sjisibm[1] = 0x40 + (count % (0xFC - 0x40)); |
| 403 | if (sjisibm[1] >= 0x7F) |
| 404 | sjisibm[1]++; |
| 405 | |
| 406 | return 2; |
| 407 | } |
| 408 | |
| 409 | static int uni2char(const wchar_t uni, |
| 410 | unsigned char *out, int boundlen) |
| 411 | { |
| 412 | int n; |
| 413 | |
| 414 | if (!p_nls) |
| 415 | return -EINVAL; |
| 416 | if ((n = p_nls->uni2char(uni, out, boundlen)) < 0) |
| 417 | return n; |
| 418 | |
| 419 | /* translate SJIS into EUC-JP */ |
| 420 | if (n == 1) { |
| 421 | if (IS_SJIS_JISX0201KANA(out[0])) { |
| 422 | /* JIS X 0201 KANA */ |
| 423 | if (boundlen < 2) |
| 424 | return -ENAMETOOLONG; |
| 425 | |
| 426 | out[1] = out[0]; |
| 427 | out[0] = SS2; |
| 428 | return 2; |
| 429 | } |
| 430 | } else if (n == 2) { |
| 431 | /* NEC/IBM extended characters to IBM extended characters */ |
| 432 | sjisnec2sjisibm(out, out[0], out[1]); |
| 433 | |
| 434 | if (IS_SJIS_UDC_LOW(out[0], out[1])) { |
| 435 | /* User defined characters half low */ |
| 436 | MAP_SJIS2EUC(out[0], out[1], 0xF0, out[0], out[1], 0xF5); |
| 437 | } else if (IS_SJIS_UDC_HI(out[0], out[1])) { |
| 438 | /* User defined characters half high */ |
| 439 | unsigned char ch, cl; |
| 440 | |
| 441 | if (boundlen < 3) |
| 442 | return -ENAMETOOLONG; |
| 443 | |
| 444 | n = 3; ch = out[0]; cl = out[1]; |
| 445 | out[0] = SS3; |
| 446 | MAP_SJIS2EUC(ch, cl, 0xF5, out[1], out[2], 0xF5); |
| 447 | } else if (IS_SJIS_IBM(out[0], out[1])) { |
| 448 | /* IBM extended characters */ |
| 449 | unsigned char euc[3], i; |
| 450 | |
| 451 | n = sjisibm2euc(euc, out[0], out[1]); |
| 452 | if (boundlen < n) |
| 453 | return -ENAMETOOLONG; |
| 454 | for (i = 0; i < n; i++) |
| 455 | out[i] = euc[i]; |
| 456 | } else if (IS_SJIS_JISX0208(out[0], out[1])) { |
| 457 | /* JIS X 0208 (include NEC special characters) */ |
| 458 | out[0] = (out[0]^0xA0)*2 + 0x5F; |
| 459 | if (out[1] > 0x9E) |
| 460 | out[0]++; |
| 461 | |
| 462 | if (out[1] < 0x7F) |
| 463 | out[1] = out[1] + 0x61; |
| 464 | else if (out[1] < 0x9F) |
| 465 | out[1] = out[1] + 0x60; |
| 466 | else |
| 467 | out[1] = out[1] + 0x02; |
| 468 | } else { |
| 469 | /* Invalid characters */ |
| 470 | return -EINVAL; |
| 471 | } |
| 472 | } |
| 473 | else |
| 474 | return -EINVAL; |
| 475 | |
| 476 | return n; |
| 477 | } |
| 478 | |
| 479 | static int char2uni(const unsigned char *rawstring, int boundlen, |
| 480 | wchar_t *uni) |
| 481 | { |
| 482 | unsigned char sjis_temp[2]; |
| 483 | int euc_offset, n; |
| 484 | |
| 485 | if ( !p_nls ) |
| 486 | return -EINVAL; |
| 487 | if (boundlen <= 0) |
| 488 | return -ENAMETOOLONG; |
| 489 | |
| 490 | /* translate EUC-JP into SJIS */ |
| 491 | if (rawstring[0] > 0x7F) { |
| 492 | if (rawstring[0] == SS3) { |
| 493 | if (boundlen < 3) |
| 494 | return -EINVAL; |
| 495 | euc_offset = 3; |
| 496 | |
| 497 | if (IS_EUC_UDC_HI(rawstring[1], rawstring[2])) { |
| 498 | /* User defined characters half high */ |
| 499 | MAP_EUC2SJIS(rawstring[1], rawstring[2], 0xF5, |
| 500 | sjis_temp[0], sjis_temp[1], 0xF5); |
| 501 | } else if (euc2sjisibm(sjis_temp,rawstring[1],rawstring[2])) { |
| 502 | /* IBM extended characters */ |
| 503 | } else { |
| 504 | /* JIS X 0212 and Invalid characters*/ |
| 505 | return -EINVAL; |
| 506 | |
| 507 | /* 'GETA' with SJIS coding */ |
| 508 | /* sjis_temp[0] = 0x81; */ |
| 509 | /* sjis_temp[1] = 0xAC; */ |
| 510 | } |
| 511 | } else { |
| 512 | if (boundlen < 2) |
| 513 | return -EINVAL; |
| 514 | euc_offset = 2; |
| 515 | |
| 516 | if (IS_EUC_JISX0201KANA(rawstring[0], rawstring[1])) { |
| 517 | /* JIS X 0201 KANA */ |
| 518 | sjis_temp[0] = rawstring[1]; |
| 519 | sjis_temp[1] = 0x00; |
| 520 | } else if (IS_EUC_UDC_LOW(rawstring[0], rawstring[1])) { |
| 521 | /* User defined characters half low */ |
| 522 | MAP_EUC2SJIS(rawstring[0], rawstring[1], 0xF5, |
| 523 | sjis_temp[0], sjis_temp[1], 0xF0); |
| 524 | } else if (IS_EUC_JISX0208(rawstring[0], rawstring[1])) { |
| 525 | /* JIS X 0208 (include NEC spesial characters) */ |
| 526 | sjis_temp[0] = ((rawstring[0]-0x5f)/2) ^ 0xA0; |
| 527 | if (!(rawstring[0] & 1)) |
| 528 | sjis_temp[1] = rawstring[1] - 0x02; |
| 529 | else if (rawstring[1] < 0xE0) |
| 530 | sjis_temp[1] = rawstring[1] - 0x61; |
| 531 | else |
| 532 | sjis_temp[1] = rawstring[1] - 0x60; |
| 533 | } else { |
| 534 | /* Invalid characters */ |
| 535 | return -EINVAL; |
| 536 | } |
| 537 | } |
| 538 | } else { |
| 539 | euc_offset = 1; |
| 540 | |
| 541 | /* JIS X 0201 ROMAJI */ |
| 542 | sjis_temp[0] = rawstring[0]; |
| 543 | sjis_temp[1] = 0x00; |
| 544 | } |
| 545 | |
| 546 | if ( (n = p_nls->char2uni(sjis_temp, sizeof(sjis_temp), uni)) < 0) |
| 547 | return n; |
| 548 | |
| 549 | return euc_offset; |
| 550 | } |
| 551 | |
| 552 | static struct nls_table table = { |
| 553 | .charset = "euc-jp", |
| 554 | .uni2char = uni2char, |
| 555 | .char2uni = char2uni, |
| 556 | .owner = THIS_MODULE, |
| 557 | }; |
| 558 | |
| 559 | static int __init init_nls_euc_jp(void) |
| 560 | { |
| 561 | p_nls = load_nls("cp932"); |
| 562 | |
| 563 | if (p_nls) { |
| 564 | table.charset2upper = p_nls->charset2upper; |
| 565 | table.charset2lower = p_nls->charset2lower; |
| 566 | return register_nls(&table); |
| 567 | } |
| 568 | |
| 569 | return -EINVAL; |
| 570 | } |
| 571 | |
| 572 | static void __exit exit_nls_euc_jp(void) |
| 573 | { |
| 574 | unregister_nls(&table); |
| 575 | unload_nls(p_nls); |
| 576 | } |
| 577 | |
| 578 | module_init(init_nls_euc_jp) |
| 579 | module_exit(exit_nls_euc_jp) |
| 580 | |
| 581 | MODULE_LICENSE("Dual BSD/GPL"); |