1 /* 2 * Copyright (c) Ian F. Darwin 1986-1995. 3 * Software written by Ian F. Darwin and others; 4 * maintained 1995-present by Christos Zoulas and others. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice immediately at the beginning of the file, without modification, 11 * this list of conditions, and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 20 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 /* 29 * Encoding -- determine the character encoding of a text file. 30 * 31 * Joerg Wunsch <joerg@freebsd.org> wrote the original support for 8-bit 32 * international characters. 33 */ 34 35 #include "file.h" 36 37 #ifndef lint 38 FILE_RCSID("@(#)$File: encoding.c,v 1.20 2019/04/15 16:48:41 christos Exp $") 39 #endif /* lint */ 40 41 #include "magic.h" 42 #include <string.h> 43 #include <memory.h> 44 #include <stdlib.h> 45 46 47 private int looks_ascii(const unsigned char *, size_t, unichar *, size_t *); 48 private int looks_utf8_with_BOM(const unsigned char *, size_t, unichar *, 49 size_t *); 50 private int looks_utf7(const unsigned char *, size_t, unichar *, size_t *); 51 private int looks_ucs16(const unsigned char *, size_t, unichar *, size_t *); 52 private int looks_ucs32(const unsigned char *, size_t, unichar *, size_t *); 53 private int looks_latin1(const unsigned char *, size_t, unichar *, size_t *); 54 private int looks_extended(const unsigned char *, size_t, unichar *, size_t *); 55 private void from_ebcdic(const unsigned char *, size_t, unsigned char *); 56 57 #ifdef DEBUG_ENCODING 58 #define DPRINTF(a) printf a 59 #else 60 #define DPRINTF(a) 61 #endif 62 63 /* 64 * Try to determine whether text is in some character code we can 65 * identify. Each of these tests, if it succeeds, will leave 66 * the text converted into one-unichar-per-character Unicode in 67 * ubuf, and the number of characters converted in ulen. 68 */ 69 protected int 70 file_encoding(struct magic_set *ms, const struct buffer *b, unichar **ubuf, 71 size_t *ulen, const char **code, const char **code_mime, const char **type) 72 { 73 const unsigned char *buf = CAST(const unsigned char *, b->fbuf); 74 size_t nbytes = b->flen; 75 size_t mlen; 76 int rv = 1, ucs_type; 77 unsigned char *nbuf = NULL; 78 unichar *udefbuf; 79 size_t udeflen; 80 81 if (ubuf == NULL) 82 ubuf = &udefbuf; 83 if (ulen == NULL) 84 ulen = &udeflen; 85 86 *type = "text"; 87 *ulen = 0; 88 *code = "unknown"; 89 *code_mime = "binary"; 90 91 mlen = (nbytes + 1) * sizeof((*ubuf)[0]); 92 if ((*ubuf = CAST(unichar *, calloc(CAST(size_t, 1), mlen))) == NULL) { 93 file_oomem(ms, mlen); 94 goto done; 95 } 96 mlen = (nbytes + 1) * sizeof(nbuf[0]); 97 if ((nbuf = CAST(unsigned char *, 98 calloc(CAST(size_t, 1), mlen))) == NULL) { 99 file_oomem(ms, mlen); 100 goto done; 101 } 102 103 if (looks_ascii(buf, nbytes, *ubuf, ulen)) { 104 if (looks_utf7(buf, nbytes, *ubuf, ulen) > 0) { 105 DPRINTF(("utf-7 %" SIZE_T_FORMAT "u\n", *ulen)); 106 *code = "UTF-7 Unicode"; 107 *code_mime = "utf-7"; 108 } else { 109 DPRINTF(("ascii %" SIZE_T_FORMAT "u\n", *ulen)); 110 *code = "ASCII"; 111 *code_mime = "us-ascii"; 112 } 113 } else if (looks_utf8_with_BOM(buf, nbytes, *ubuf, ulen) > 0) { 114 DPRINTF(("utf8/bom %" SIZE_T_FORMAT "u\n", *ulen)); 115 *code = "UTF-8 Unicode (with BOM)"; 116 *code_mime = "utf-8"; 117 } else if (file_looks_utf8(buf, nbytes, *ubuf, ulen) > 1) { 118 DPRINTF(("utf8 %" SIZE_T_FORMAT "u\n", *ulen)); 119 *code = "UTF-8 Unicode"; 120 *code_mime = "utf-8"; 121 } else if ((ucs_type = looks_ucs32(buf, nbytes, *ubuf, ulen)) != 0) { 122 if (ucs_type == 1) { 123 *code = "Little-endian UTF-32 Unicode"; 124 *code_mime = "utf-32le"; 125 } else { 126 *code = "Big-endian UTF-32 Unicode"; 127 *code_mime = "utf-32be"; 128 } 129 DPRINTF(("ucs32 %" SIZE_T_FORMAT "u\n", *ulen)); 130 } else if ((ucs_type = looks_ucs16(buf, nbytes, *ubuf, ulen)) != 0) { 131 if (ucs_type == 1) { 132 *code = "Little-endian UTF-16 Unicode"; 133 *code_mime = "utf-16le"; 134 } else { 135 *code = "Big-endian UTF-16 Unicode"; 136 *code_mime = "utf-16be"; 137 } 138 DPRINTF(("ucs16 %" SIZE_T_FORMAT "u\n", *ulen)); 139 } else if (looks_latin1(buf, nbytes, *ubuf, ulen)) { 140 DPRINTF(("latin1 %" SIZE_T_FORMAT "u\n", *ulen)); 141 *code = "ISO-8859"; 142 *code_mime = "iso-8859-1"; 143 } else if (looks_extended(buf, nbytes, *ubuf, ulen)) { 144 DPRINTF(("extended %" SIZE_T_FORMAT "u\n", *ulen)); 145 *code = "Non-ISO extended-ASCII"; 146 *code_mime = "unknown-8bit"; 147 } else { 148 from_ebcdic(buf, nbytes, nbuf); 149 150 if (looks_ascii(nbuf, nbytes, *ubuf, ulen)) { 151 DPRINTF(("ebcdic %" SIZE_T_FORMAT "u\n", *ulen)); 152 *code = "EBCDIC"; 153 *code_mime = "ebcdic"; 154 } else if (looks_latin1(nbuf, nbytes, *ubuf, ulen)) { 155 DPRINTF(("ebcdic/international %" SIZE_T_FORMAT "u\n", 156 *ulen)); 157 *code = "International EBCDIC"; 158 *code_mime = "ebcdic"; 159 } else { /* Doesn't look like text at all */ 160 DPRINTF(("binary\n")); 161 rv = 0; 162 *type = "binary"; 163 } 164 } 165 166 done: 167 free(nbuf); 168 if (ubuf == &udefbuf) 169 free(udefbuf); 170 171 return rv; 172 } 173 174 /* 175 * This table reflects a particular philosophy about what constitutes 176 * "text," and there is room for disagreement about it. 177 * 178 * Version 3.31 of the file command considered a file to be ASCII if 179 * each of its characters was approved by either the isascii() or 180 * isalpha() function. On most systems, this would mean that any 181 * file consisting only of characters in the range 0x00 ... 0x7F 182 * would be called ASCII text, but many systems might reasonably 183 * consider some characters outside this range to be alphabetic, 184 * so the file command would call such characters ASCII. It might 185 * have been more accurate to call this "considered textual on the 186 * local system" than "ASCII." 187 * 188 * It considered a file to be "International language text" if each 189 * of its characters was either an ASCII printing character (according 190 * to the real ASCII standard, not the above test), a character in 191 * the range 0x80 ... 0xFF, or one of the following control characters: 192 * backspace, tab, line feed, vertical tab, form feed, carriage return, 193 * escape. No attempt was made to determine the language in which files 194 * of this type were written. 195 * 196 * 197 * The table below considers a file to be ASCII if all of its characters 198 * are either ASCII printing characters (again, according to the X3.4 199 * standard, not isascii()) or any of the following controls: bell, 200 * backspace, tab, line feed, form feed, carriage return, esc, nextline. 201 * 202 * I include bell because some programs (particularly shell scripts) 203 * use it literally, even though it is rare in normal text. I exclude 204 * vertical tab because it never seems to be used in real text. I also 205 * include, with hesitation, the X3.64/ECMA-43 control nextline (0x85), 206 * because that's what the dd EBCDIC->ASCII table maps the EBCDIC newline 207 * character to. It might be more appropriate to include it in the 8859 208 * set instead of the ASCII set, but it's got to be included in *something* 209 * we recognize or EBCDIC files aren't going to be considered textual. 210 * Some old Unix source files use SO/SI (^N/^O) to shift between Greek 211 * and Latin characters, so these should possibly be allowed. But they 212 * make a real mess on VT100-style displays if they're not paired properly, 213 * so we are probably better off not calling them text. 214 * 215 * A file is considered to be ISO-8859 text if its characters are all 216 * either ASCII, according to the above definition, or printing characters 217 * from the ISO-8859 8-bit extension, characters 0xA0 ... 0xFF. 218 * 219 * Finally, a file is considered to be international text from some other 220 * character code if its characters are all either ISO-8859 (according to 221 * the above definition) or characters in the range 0x80 ... 0x9F, which 222 * ISO-8859 considers to be control characters but the IBM PC and Macintosh 223 * consider to be printing characters. 224 */ 225 226 #define F 0 /* character never appears in text */ 227 #define T 1 /* character appears in plain ASCII text */ 228 #define I 2 /* character appears in ISO-8859 text */ 229 #define X 3 /* character appears in non-ISO extended ASCII (Mac, IBM PC) */ 230 231 private char text_chars[256] = { 232 /* BEL BS HT LF VT FF CR */ 233 F, F, F, F, F, F, F, T, T, T, T, T, T, T, F, F, /* 0x0X */ 234 /* ESC */ 235 F, F, F, F, F, F, F, F, F, F, F, T, F, F, F, F, /* 0x1X */ 236 T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x2X */ 237 T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x3X */ 238 T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x4X */ 239 T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x5X */ 240 T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x6X */ 241 T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, F, /* 0x7X */ 242 /* NEL */ 243 X, X, X, X, X, T, X, X, X, X, X, X, X, X, X, X, /* 0x8X */ 244 X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, /* 0x9X */ 245 I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, /* 0xaX */ 246 I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, /* 0xbX */ 247 I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, /* 0xcX */ 248 I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, /* 0xdX */ 249 I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, /* 0xeX */ 250 I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I /* 0xfX */ 251 }; 252 253 private int 254 looks_ascii(const unsigned char *buf, size_t nbytes, unichar *ubuf, 255 size_t *ulen) 256 { 257 size_t i; 258 259 *ulen = 0; 260 261 for (i = 0; i < nbytes; i++) { 262 int t = text_chars[buf[i]]; 263 264 if (t != T) 265 return 0; 266 267 ubuf[(*ulen)++] = buf[i]; 268 } 269 270 return 1; 271 } 272 273 private int 274 looks_latin1(const unsigned char *buf, size_t nbytes, unichar *ubuf, size_t *ulen) 275 { 276 size_t i; 277 278 *ulen = 0; 279 280 for (i = 0; i < nbytes; i++) { 281 int t = text_chars[buf[i]]; 282 283 if (t != T && t != I) 284 return 0; 285 286 ubuf[(*ulen)++] = buf[i]; 287 } 288 289 return 1; 290 } 291 292 private int 293 looks_extended(const unsigned char *buf, size_t nbytes, unichar *ubuf, 294 size_t *ulen) 295 { 296 size_t i; 297 298 *ulen = 0; 299 300 for (i = 0; i < nbytes; i++) { 301 int t = text_chars[buf[i]]; 302 303 if (t != T && t != I && t != X) 304 return 0; 305 306 ubuf[(*ulen)++] = buf[i]; 307 } 308 309 return 1; 310 } 311 312 /* 313 * Decide whether some text looks like UTF-8. Returns: 314 * 315 * -1: invalid UTF-8 316 * 0: uses odd control characters, so doesn't look like text 317 * 1: 7-bit text 318 * 2: definitely UTF-8 text (valid high-bit set bytes) 319 * 320 * If ubuf is non-NULL on entry, text is decoded into ubuf, *ulen; 321 * ubuf must be big enough! 322 */ 323 protected int 324 file_looks_utf8(const unsigned char *buf, size_t nbytes, unichar *ubuf, size_t *ulen) 325 { 326 size_t i; 327 int n; 328 unichar c; 329 int gotone = 0, ctrl = 0; 330 331 if (ubuf) 332 *ulen = 0; 333 334 for (i = 0; i < nbytes; i++) { 335 if ((buf[i] & 0x80) == 0) { /* 0xxxxxxx is plain ASCII */ 336 /* 337 * Even if the whole file is valid UTF-8 sequences, 338 * still reject it if it uses weird control characters. 339 */ 340 341 if (text_chars[buf[i]] != T) 342 ctrl = 1; 343 344 if (ubuf) 345 ubuf[(*ulen)++] = buf[i]; 346 } else if ((buf[i] & 0x40) == 0) { /* 10xxxxxx never 1st byte */ 347 return -1; 348 } else { /* 11xxxxxx begins UTF-8 */ 349 int following; 350 351 if ((buf[i] & 0x20) == 0) { /* 110xxxxx */ 352 c = buf[i] & 0x1f; 353 following = 1; 354 } else if ((buf[i] & 0x10) == 0) { /* 1110xxxx */ 355 c = buf[i] & 0x0f; 356 following = 2; 357 } else if ((buf[i] & 0x08) == 0) { /* 11110xxx */ 358 c = buf[i] & 0x07; 359 following = 3; 360 } else if ((buf[i] & 0x04) == 0) { /* 111110xx */ 361 c = buf[i] & 0x03; 362 following = 4; 363 } else if ((buf[i] & 0x02) == 0) { /* 1111110x */ 364 c = buf[i] & 0x01; 365 following = 5; 366 } else 367 return -1; 368 369 for (n = 0; n < following; n++) { 370 i++; 371 if (i >= nbytes) 372 goto done; 373 374 if ((buf[i] & 0x80) == 0 || (buf[i] & 0x40)) 375 return -1; 376 377 c = (c << 6) + (buf[i] & 0x3f); 378 } 379 380 if (ubuf) 381 ubuf[(*ulen)++] = c; 382 gotone = 1; 383 } 384 } 385 done: 386 return ctrl ? 0 : (gotone ? 2 : 1); 387 } 388 389 /* 390 * Decide whether some text looks like UTF-8 with BOM. If there is no 391 * BOM, return -1; otherwise return the result of looks_utf8 on the 392 * rest of the text. 393 */ 394 private int 395 looks_utf8_with_BOM(const unsigned char *buf, size_t nbytes, unichar *ubuf, 396 size_t *ulen) 397 { 398 if (nbytes > 3 && buf[0] == 0xef && buf[1] == 0xbb && buf[2] == 0xbf) 399 return file_looks_utf8(buf + 3, nbytes - 3, ubuf, ulen); 400 else 401 return -1; 402 } 403 404 private int 405 looks_utf7(const unsigned char *buf, size_t nbytes, unichar *ubuf, size_t *ulen) 406 { 407 if (nbytes > 4 && buf[0] == '+' && buf[1] == '/' && buf[2] == 'v') 408 switch (buf[3]) { 409 case '8': 410 case '9': 411 case '+': 412 case '/': 413 if (ubuf) 414 *ulen = 0; 415 return 1; 416 default: 417 return -1; 418 } 419 else 420 return -1; 421 } 422 423 private int 424 looks_ucs16(const unsigned char *bf, size_t nbytes, unichar *ubf, 425 size_t *ulen) 426 { 427 int bigend; 428 size_t i; 429 430 if (nbytes < 2) 431 return 0; 432 433 if (bf[0] == 0xff && bf[1] == 0xfe) 434 bigend = 0; 435 else if (bf[0] == 0xfe && bf[1] == 0xff) 436 bigend = 1; 437 else 438 return 0; 439 440 *ulen = 0; 441 442 for (i = 2; i + 1 < nbytes; i += 2) { 443 /* XXX fix to properly handle chars > 65536 */ 444 445 if (bigend) 446 ubf[(*ulen)++] = bf[i + 1] 447 | (CAST(unichar, bf[i]) << 8); 448 else 449 ubf[(*ulen)++] = bf[i] 450 | (CAST(unichar, bf[i + 1]) << 8); 451 452 if (ubf[*ulen - 1] == 0xfffe) 453 return 0; 454 if (ubf[*ulen - 1] < 128 && 455 text_chars[CAST(size_t, ubf[*ulen - 1])] != T) 456 return 0; 457 } 458 459 return 1 + bigend; 460 } 461 462 private int 463 looks_ucs32(const unsigned char *bf, size_t nbytes, unichar *ubf, 464 size_t *ulen) 465 { 466 int bigend; 467 size_t i; 468 469 if (nbytes < 4) 470 return 0; 471 472 if (bf[0] == 0xff && bf[1] == 0xfe && bf[2] == 0 && bf[3] == 0) 473 bigend = 0; 474 else if (bf[0] == 0 && bf[1] == 0 && bf[2] == 0xfe && bf[3] == 0xff) 475 bigend = 1; 476 else 477 return 0; 478 479 *ulen = 0; 480 481 for (i = 4; i + 3 < nbytes; i += 4) { 482 /* XXX fix to properly handle chars > 65536 */ 483 484 if (bigend) 485 ubf[(*ulen)++] = CAST(unichar, bf[i + 3]) 486 | (CAST(unichar, bf[i + 2]) << 8) 487 | (CAST(unichar, bf[i + 1]) << 16) 488 | (CAST(unichar, bf[i]) << 24); 489 else 490 ubf[(*ulen)++] = CAST(unichar, bf[i + 0]) 491 | (CAST(unichar, bf[i + 1]) << 8) 492 | (CAST(unichar, bf[i + 2]) << 16) 493 | (CAST(unichar, bf[i + 3]) << 24); 494 495 if (ubf[*ulen - 1] == 0xfffe) 496 return 0; 497 if (ubf[*ulen - 1] < 128 && 498 text_chars[CAST(size_t, ubf[*ulen - 1])] != T) 499 return 0; 500 } 501 502 return 1 + bigend; 503 } 504 #undef F 505 #undef T 506 #undef I 507 #undef X 508 509 /* 510 * This table maps each EBCDIC character to an (8-bit extended) ASCII 511 * character, as specified in the rationale for the dd(1) command in 512 * draft 11.2 (September, 1991) of the POSIX P1003.2 standard. 513 * 514 * Unfortunately it does not seem to correspond exactly to any of the 515 * five variants of EBCDIC documented in IBM's _Enterprise Systems 516 * Architecture/390: Principles of Operation_, SA22-7201-06, Seventh 517 * Edition, July, 1999, pp. I-1 - I-4. 518 * 519 * Fortunately, though, all versions of EBCDIC, including this one, agree 520 * on most of the printing characters that also appear in (7-bit) ASCII. 521 * Of these, only '|', '!', '~', '^', '[', and ']' are in question at all. 522 * 523 * Fortunately too, there is general agreement that codes 0x00 through 524 * 0x3F represent control characters, 0x41 a nonbreaking space, and the 525 * remainder printing characters. 526 * 527 * This is sufficient to allow us to identify EBCDIC text and to distinguish 528 * between old-style and internationalized examples of text. 529 */ 530 531 private unsigned char ebcdic_to_ascii[] = { 532 0, 1, 2, 3, 156, 9, 134, 127, 151, 141, 142, 11, 12, 13, 14, 15, 533 16, 17, 18, 19, 157, 133, 8, 135, 24, 25, 146, 143, 28, 29, 30, 31, 534 128, 129, 130, 131, 132, 10, 23, 27, 136, 137, 138, 139, 140, 5, 6, 7, 535 144, 145, 22, 147, 148, 149, 150, 4, 152, 153, 154, 155, 20, 21, 158, 26, 536 ' ', 160, 161, 162, 163, 164, 165, 166, 167, 168, 213, '.', '<', '(', '+', '|', 537 '&', 169, 170, 171, 172, 173, 174, 175, 176, 177, '!', '$', '*', ')', ';', '~', 538 '-', '/', 178, 179, 180, 181, 182, 183, 184, 185, 203, ',', '%', '_', '>', '?', 539 186, 187, 188, 189, 190, 191, 192, 193, 194, '`', ':', '#', '@', '\'','=', '"', 540 195, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 196, 197, 198, 199, 200, 201, 541 202, 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', '^', 204, 205, 206, 207, 208, 542 209, 229, 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 210, 211, 212, '[', 214, 215, 543 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, ']', 230, 231, 544 '{', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 232, 233, 234, 235, 236, 237, 545 '}', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 238, 239, 240, 241, 242, 243, 546 '\\',159, 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 244, 245, 246, 247, 248, 249, 547 '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 250, 251, 252, 253, 254, 255 548 }; 549 550 #ifdef notdef 551 /* 552 * The following EBCDIC-to-ASCII table may relate more closely to reality, 553 * or at least to modern reality. It comes from 554 * 555 * http://ftp.s390.ibm.com/products/oe/bpxqp9.html 556 * 557 * and maps the characters of EBCDIC code page 1047 (the code used for 558 * Unix-derived software on IBM's 390 systems) to the corresponding 559 * characters from ISO 8859-1. 560 * 561 * If this table is used instead of the above one, some of the special 562 * cases for the NEL character can be taken out of the code. 563 */ 564 565 private unsigned char ebcdic_1047_to_8859[] = { 566 0x00,0x01,0x02,0x03,0x9C,0x09,0x86,0x7F,0x97,0x8D,0x8E,0x0B,0x0C,0x0D,0x0E,0x0F, 567 0x10,0x11,0x12,0x13,0x9D,0x0A,0x08,0x87,0x18,0x19,0x92,0x8F,0x1C,0x1D,0x1E,0x1F, 568 0x80,0x81,0x82,0x83,0x84,0x85,0x17,0x1B,0x88,0x89,0x8A,0x8B,0x8C,0x05,0x06,0x07, 569 0x90,0x91,0x16,0x93,0x94,0x95,0x96,0x04,0x98,0x99,0x9A,0x9B,0x14,0x15,0x9E,0x1A, 570 0x20,0xA0,0xE2,0xE4,0xE0,0xE1,0xE3,0xE5,0xE7,0xF1,0xA2,0x2E,0x3C,0x28,0x2B,0x7C, 571 0x26,0xE9,0xEA,0xEB,0xE8,0xED,0xEE,0xEF,0xEC,0xDF,0x21,0x24,0x2A,0x29,0x3B,0x5E, 572 0x2D,0x2F,0xC2,0xC4,0xC0,0xC1,0xC3,0xC5,0xC7,0xD1,0xA6,0x2C,0x25,0x5F,0x3E,0x3F, 573 0xF8,0xC9,0xCA,0xCB,0xC8,0xCD,0xCE,0xCF,0xCC,0x60,0x3A,0x23,0x40,0x27,0x3D,0x22, 574 0xD8,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0xAB,0xBB,0xF0,0xFD,0xFE,0xB1, 575 0xB0,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,0x70,0x71,0x72,0xAA,0xBA,0xE6,0xB8,0xC6,0xA4, 576 0xB5,0x7E,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0xA1,0xBF,0xD0,0x5B,0xDE,0xAE, 577 0xAC,0xA3,0xA5,0xB7,0xA9,0xA7,0xB6,0xBC,0xBD,0xBE,0xDD,0xA8,0xAF,0x5D,0xB4,0xD7, 578 0x7B,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0xAD,0xF4,0xF6,0xF2,0xF3,0xF5, 579 0x7D,0x4A,0x4B,0x4C,0x4D,0x4E,0x4F,0x50,0x51,0x52,0xB9,0xFB,0xFC,0xF9,0xFA,0xFF, 580 0x5C,0xF7,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5A,0xB2,0xD4,0xD6,0xD2,0xD3,0xD5, 581 0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0xB3,0xDB,0xDC,0xD9,0xDA,0x9F 582 }; 583 #endif 584 585 /* 586 * Copy buf[0 ... nbytes-1] into out[], translating EBCDIC to ASCII. 587 */ 588 private void 589 from_ebcdic(const unsigned char *buf, size_t nbytes, unsigned char *out) 590 { 591 size_t i; 592 593 for (i = 0; i < nbytes; i++) { 594 out[i] = ebcdic_to_ascii[buf[i]]; 595 } 596 } 597