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 38FILE_RCSID("@(#)$File: encoding.c,v 1.21 2019/06/08 20:49:14 christos Exp $") 39#endif /* lint */ 40 41#include "magic.h" 42#include <string.h> 43#include <stdlib.h> 44 45 46private int looks_ascii(const unsigned char *, size_t, unichar *, size_t *); 47private int looks_utf8_with_BOM(const unsigned char *, size_t, unichar *, 48 size_t *); 49private int looks_utf7(const unsigned char *, size_t, unichar *, size_t *); 50private int looks_ucs16(const unsigned char *, size_t, unichar *, size_t *); 51private int looks_ucs32(const unsigned char *, size_t, unichar *, size_t *); 52private int looks_latin1(const unsigned char *, size_t, unichar *, size_t *); 53private int looks_extended(const unsigned char *, size_t, unichar *, size_t *); 54private void from_ebcdic(const unsigned char *, size_t, unsigned char *); 55 56#ifdef DEBUG_ENCODING 57#define DPRINTF(a) printf a 58#else 59#define DPRINTF(a) 60#endif 61 62/* 63 * Try to determine whether text is in some character code we can 64 * identify. Each of these tests, if it succeeds, will leave 65 * the text converted into one-unichar-per-character Unicode in 66 * ubuf, and the number of characters converted in ulen. 67 */ 68protected int 69file_encoding(struct magic_set *ms, const struct buffer *b, unichar **ubuf, 70 size_t *ulen, const char **code, const char **code_mime, const char **type) 71{ 72 const unsigned char *buf = CAST(const unsigned char *, b->fbuf); 73 size_t nbytes = b->flen; 74 size_t mlen; 75 int rv = 1, ucs_type; 76 unsigned char *nbuf = NULL; 77 unichar *udefbuf; 78 size_t udeflen; 79 80 if (ubuf == NULL) 81 ubuf = &udefbuf; 82 if (ulen == NULL) 83 ulen = &udeflen; 84 85 *type = "text"; 86 *ulen = 0; 87 *code = "unknown"; 88 *code_mime = "binary"; 89 90 mlen = (nbytes + 1) * sizeof((*ubuf)[0]); 91 if ((*ubuf = CAST(unichar *, calloc(CAST(size_t, 1), mlen))) == NULL) { 92 file_oomem(ms, mlen); 93 goto done; 94 } 95 mlen = (nbytes + 1) * sizeof(nbuf[0]); 96 if ((nbuf = CAST(unsigned char *, 97 calloc(CAST(size_t, 1), mlen))) == NULL) { 98 file_oomem(ms, mlen); 99 goto done; 100 } 101 102 if (looks_ascii(buf, nbytes, *ubuf, ulen)) { 103 if (looks_utf7(buf, nbytes, *ubuf, ulen) > 0) { 104 DPRINTF(("utf-7 %" SIZE_T_FORMAT "u\n", *ulen)); 105 *code = "UTF-7 Unicode"; 106 *code_mime = "utf-7"; 107 } else { 108 DPRINTF(("ascii %" SIZE_T_FORMAT "u\n", *ulen)); 109 *code = "ASCII"; 110 *code_mime = "us-ascii"; 111 } 112 } else if (looks_utf8_with_BOM(buf, nbytes, *ubuf, ulen) > 0) { 113 DPRINTF(("utf8/bom %" SIZE_T_FORMAT "u\n", *ulen)); 114 *code = "UTF-8 Unicode (with BOM)"; 115 *code_mime = "utf-8"; 116 } else if (file_looks_utf8(buf, nbytes, *ubuf, ulen) > 1) { 117 DPRINTF(("utf8 %" SIZE_T_FORMAT "u\n", *ulen)); 118 *code = "UTF-8 Unicode"; 119 *code_mime = "utf-8"; 120 } else if ((ucs_type = looks_ucs32(buf, nbytes, *ubuf, ulen)) != 0) { 121 if (ucs_type == 1) { 122 *code = "Little-endian UTF-32 Unicode"; 123 *code_mime = "utf-32le"; 124 } else { 125 *code = "Big-endian UTF-32 Unicode"; 126 *code_mime = "utf-32be"; 127 } 128 DPRINTF(("ucs32 %" SIZE_T_FORMAT "u\n", *ulen)); 129 } else if ((ucs_type = looks_ucs16(buf, nbytes, *ubuf, ulen)) != 0) { 130 if (ucs_type == 1) { 131 *code = "Little-endian UTF-16 Unicode"; 132 *code_mime = "utf-16le"; 133 } else { 134 *code = "Big-endian UTF-16 Unicode"; 135 *code_mime = "utf-16be"; 136 } 137 DPRINTF(("ucs16 %" SIZE_T_FORMAT "u\n", *ulen)); 138 } else if (looks_latin1(buf, nbytes, *ubuf, ulen)) { 139 DPRINTF(("latin1 %" SIZE_T_FORMAT "u\n", *ulen)); 140 *code = "ISO-8859"; 141 *code_mime = "iso-8859-1"; 142 } else if (looks_extended(buf, nbytes, *ubuf, ulen)) { 143 DPRINTF(("extended %" SIZE_T_FORMAT "u\n", *ulen)); 144 *code = "Non-ISO extended-ASCII"; 145 *code_mime = "unknown-8bit"; 146 } else { 147 from_ebcdic(buf, nbytes, nbuf); 148 149 if (looks_ascii(nbuf, nbytes, *ubuf, ulen)) { 150 DPRINTF(("ebcdic %" SIZE_T_FORMAT "u\n", *ulen)); 151 *code = "EBCDIC"; 152 *code_mime = "ebcdic"; 153 } else if (looks_latin1(nbuf, nbytes, *ubuf, ulen)) { 154 DPRINTF(("ebcdic/international %" SIZE_T_FORMAT "u\n", 155 *ulen)); 156 *code = "International EBCDIC"; 157 *code_mime = "ebcdic"; 158 } else { /* Doesn't look like text at all */ 159 DPRINTF(("binary\n")); 160 rv = 0; 161 *type = "binary"; 162 } 163 } 164 165 done: 166 free(nbuf); 167 if (ubuf == &udefbuf) 168 free(udefbuf); 169 170 return rv; 171} 172 173/* 174 * This table reflects a particular philosophy about what constitutes 175 * "text," and there is room for disagreement about it. 176 * 177 * Version 3.31 of the file command considered a file to be ASCII if 178 * each of its characters was approved by either the isascii() or 179 * isalpha() function. On most systems, this would mean that any 180 * file consisting only of characters in the range 0x00 ... 0x7F 181 * would be called ASCII text, but many systems might reasonably 182 * consider some characters outside this range to be alphabetic, 183 * so the file command would call such characters ASCII. It might 184 * have been more accurate to call this "considered textual on the 185 * local system" than "ASCII." 186 * 187 * It considered a file to be "International language text" if each 188 * of its characters was either an ASCII printing character (according 189 * to the real ASCII standard, not the above test), a character in 190 * the range 0x80 ... 0xFF, or one of the following control characters: 191 * backspace, tab, line feed, vertical tab, form feed, carriage return, 192 * escape. No attempt was made to determine the language in which files 193 * of this type were written. 194 * 195 * 196 * The table below considers a file to be ASCII if all of its characters 197 * are either ASCII printing characters (again, according to the X3.4 198 * standard, not isascii()) or any of the following controls: bell, 199 * backspace, tab, line feed, form feed, carriage return, esc, nextline. 200 * 201 * I include bell because some programs (particularly shell scripts) 202 * use it literally, even though it is rare in normal text. I exclude 203 * vertical tab because it never seems to be used in real text. I also 204 * include, with hesitation, the X3.64/ECMA-43 control nextline (0x85), 205 * because that's what the dd EBCDIC->ASCII table maps the EBCDIC newline 206 * character to. It might be more appropriate to include it in the 8859 207 * set instead of the ASCII set, but it's got to be included in *something* 208 * we recognize or EBCDIC files aren't going to be considered textual. 209 * Some old Unix source files use SO/SI (^N/^O) to shift between Greek 210 * and Latin characters, so these should possibly be allowed. But they 211 * make a real mess on VT100-style displays if they're not paired properly, 212 * so we are probably better off not calling them text. 213 * 214 * A file is considered to be ISO-8859 text if its characters are all 215 * either ASCII, according to the above definition, or printing characters 216 * from the ISO-8859 8-bit extension, characters 0xA0 ... 0xFF. 217 * 218 * Finally, a file is considered to be international text from some other 219 * character code if its characters are all either ISO-8859 (according to 220 * the above definition) or characters in the range 0x80 ... 0x9F, which 221 * ISO-8859 considers to be control characters but the IBM PC and Macintosh 222 * consider to be printing characters. 223 */ 224 225#define F 0 /* character never appears in text */ 226#define T 1 /* character appears in plain ASCII text */ 227#define I 2 /* character appears in ISO-8859 text */ 228#define X 3 /* character appears in non-ISO extended ASCII (Mac, IBM PC) */ 229 230private char text_chars[256] = { 231 /* BEL BS HT LF VT FF CR */ 232 F, F, F, F, F, F, F, T, T, T, T, T, T, T, F, F, /* 0x0X */ 233 /* ESC */ 234 F, F, F, F, F, F, F, F, F, F, F, T, F, F, F, F, /* 0x1X */ 235 T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x2X */ 236 T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x3X */ 237 T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x4X */ 238 T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x5X */ 239 T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, /* 0x6X */ 240 T, T, T, T, T, T, T, T, T, T, T, T, T, T, T, F, /* 0x7X */ 241 /* NEL */ 242 X, X, X, X, X, T, X, X, X, X, X, X, X, X, X, X, /* 0x8X */ 243 X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, X, /* 0x9X */ 244 I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, /* 0xaX */ 245 I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, /* 0xbX */ 246 I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, /* 0xcX */ 247 I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, /* 0xdX */ 248 I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, /* 0xeX */ 249 I, I, I, I, I, I, I, I, I, I, I, I, I, I, I, I /* 0xfX */ 250}; 251 252private int 253looks_ascii(const unsigned char *buf, size_t nbytes, unichar *ubuf, 254 size_t *ulen) 255{ 256 size_t i; 257 258 *ulen = 0; 259 260 for (i = 0; i < nbytes; i++) { 261 int t = text_chars[buf[i]]; 262 263 if (t != T) 264 return 0; 265 266 ubuf[(*ulen)++] = buf[i]; 267 } 268 269 return 1; 270} 271 272private int 273looks_latin1(const unsigned char *buf, size_t nbytes, unichar *ubuf, size_t *ulen) 274{ 275 size_t i; 276 277 *ulen = 0; 278 279 for (i = 0; i < nbytes; i++) { 280 int t = text_chars[buf[i]]; 281 282 if (t != T && t != I) 283 return 0; 284 285 ubuf[(*ulen)++] = buf[i]; 286 } 287 288 return 1; 289} 290 291private int 292looks_extended(const unsigned char *buf, size_t nbytes, unichar *ubuf, 293 size_t *ulen) 294{ 295 size_t i; 296 297 *ulen = 0; 298 299 for (i = 0; i < nbytes; i++) { 300 int t = text_chars[buf[i]]; 301 302 if (t != T && t != I && t != X) 303 return 0; 304 305 ubuf[(*ulen)++] = buf[i]; 306 } 307 308 return 1; 309} 310 311/* 312 * Decide whether some text looks like UTF-8. Returns: 313 * 314 * -1: invalid UTF-8 315 * 0: uses odd control characters, so doesn't look like text 316 * 1: 7-bit text 317 * 2: definitely UTF-8 text (valid high-bit set bytes) 318 * 319 * If ubuf is non-NULL on entry, text is decoded into ubuf, *ulen; 320 * ubuf must be big enough! 321 */ 322protected int 323file_looks_utf8(const unsigned char *buf, size_t nbytes, unichar *ubuf, size_t *ulen) 324{ 325 size_t i; 326 int n; 327 unichar c; 328 int gotone = 0, ctrl = 0; 329 330 if (ubuf) 331 *ulen = 0; 332 333 for (i = 0; i < nbytes; i++) { 334 if ((buf[i] & 0x80) == 0) { /* 0xxxxxxx is plain ASCII */ 335 /* 336 * Even if the whole file is valid UTF-8 sequences, 337 * still reject it if it uses weird control characters. 338 */ 339 340 if (text_chars[buf[i]] != T) 341 ctrl = 1; 342 343 if (ubuf) 344 ubuf[(*ulen)++] = buf[i]; 345 } else if ((buf[i] & 0x40) == 0) { /* 10xxxxxx never 1st byte */ 346 return -1; 347 } else { /* 11xxxxxx begins UTF-8 */ 348 int following; 349 350 if ((buf[i] & 0x20) == 0) { /* 110xxxxx */ 351 c = buf[i] & 0x1f; 352 following = 1; 353 } else if ((buf[i] & 0x10) == 0) { /* 1110xxxx */ 354 c = buf[i] & 0x0f; 355 following = 2; 356 } else if ((buf[i] & 0x08) == 0) { /* 11110xxx */ 357 c = buf[i] & 0x07; 358 following = 3; 359 } else if ((buf[i] & 0x04) == 0) { /* 111110xx */ 360 c = buf[i] & 0x03; 361 following = 4; 362 } else if ((buf[i] & 0x02) == 0) { /* 1111110x */ 363 c = buf[i] & 0x01; 364 following = 5; 365 } else 366 return -1; 367 368 for (n = 0; n < following; n++) { 369 i++; 370 if (i >= nbytes) 371 goto done; 372 373 if ((buf[i] & 0x80) == 0 || (buf[i] & 0x40)) 374 return -1; 375 376 c = (c << 6) + (buf[i] & 0x3f); 377 } 378 379 if (ubuf) 380 ubuf[(*ulen)++] = c; 381 gotone = 1; 382 } 383 } 384done: 385 return ctrl ? 0 : (gotone ? 2 : 1); 386} 387 388/* 389 * Decide whether some text looks like UTF-8 with BOM. If there is no 390 * BOM, return -1; otherwise return the result of looks_utf8 on the 391 * rest of the text. 392 */ 393private int 394looks_utf8_with_BOM(const unsigned char *buf, size_t nbytes, unichar *ubuf, 395 size_t *ulen) 396{ 397 if (nbytes > 3 && buf[0] == 0xef && buf[1] == 0xbb && buf[2] == 0xbf) 398 return file_looks_utf8(buf + 3, nbytes - 3, ubuf, ulen); 399 else 400 return -1; 401} 402 403private int 404looks_utf7(const unsigned char *buf, size_t nbytes, unichar *ubuf, size_t *ulen) 405{ 406 if (nbytes > 4 && buf[0] == '+' && buf[1] == '/' && buf[2] == 'v') 407 switch (buf[3]) { 408 case '8': 409 case '9': 410 case '+': 411 case '/': 412 if (ubuf) 413 *ulen = 0; 414 return 1; 415 default: 416 return -1; 417 } 418 else 419 return -1; 420} 421 422private int 423looks_ucs16(const unsigned char *bf, size_t nbytes, unichar *ubf, 424 size_t *ulen) 425{ 426 int bigend; 427 size_t i; 428 429 if (nbytes < 2) 430 return 0; 431 432 if (bf[0] == 0xff && bf[1] == 0xfe) 433 bigend = 0; 434 else if (bf[0] == 0xfe && bf[1] == 0xff) 435 bigend = 1; 436 else 437 return 0; 438 439 *ulen = 0; 440 441 for (i = 2; i + 1 < nbytes; i += 2) { 442 /* XXX fix to properly handle chars > 65536 */ 443 444 if (bigend) 445 ubf[(*ulen)++] = bf[i + 1] 446 | (CAST(unichar, bf[i]) << 8); 447 else 448 ubf[(*ulen)++] = bf[i] 449 | (CAST(unichar, bf[i + 1]) << 8); 450 451 if (ubf[*ulen - 1] == 0xfffe) 452 return 0; 453 if (ubf[*ulen - 1] < 128 && 454 text_chars[CAST(size_t, ubf[*ulen - 1])] != T) 455 return 0; 456 } 457 458 return 1 + bigend; 459} 460 461private int 462looks_ucs32(const unsigned char *bf, size_t nbytes, unichar *ubf, 463 size_t *ulen) 464{ 465 int bigend; 466 size_t i; 467 468 if (nbytes < 4) 469 return 0; 470 471 if (bf[0] == 0xff && bf[1] == 0xfe && bf[2] == 0 && bf[3] == 0) 472 bigend = 0; 473 else if (bf[0] == 0 && bf[1] == 0 && bf[2] == 0xfe && bf[3] == 0xff) 474 bigend = 1; 475 else 476 return 0; 477 478 *ulen = 0; 479 480 for (i = 4; i + 3 < nbytes; i += 4) { 481 /* XXX fix to properly handle chars > 65536 */ 482 483 if (bigend) 484 ubf[(*ulen)++] = CAST(unichar, bf[i + 3]) 485 | (CAST(unichar, bf[i + 2]) << 8) 486 | (CAST(unichar, bf[i + 1]) << 16) 487 | (CAST(unichar, bf[i]) << 24); 488 else 489 ubf[(*ulen)++] = CAST(unichar, bf[i + 0]) 490 | (CAST(unichar, bf[i + 1]) << 8) 491 | (CAST(unichar, bf[i + 2]) << 16) 492 | (CAST(unichar, bf[i + 3]) << 24); 493 494 if (ubf[*ulen - 1] == 0xfffe) 495 return 0; 496 if (ubf[*ulen - 1] < 128 && 497 text_chars[CAST(size_t, ubf[*ulen - 1])] != T) 498 return 0; 499 } 500 501 return 1 + bigend; 502} 503#undef F 504#undef T 505#undef I 506#undef X 507 508/* 509 * This table maps each EBCDIC character to an (8-bit extended) ASCII 510 * character, as specified in the rationale for the dd(1) command in 511 * draft 11.2 (September, 1991) of the POSIX P1003.2 standard. 512 * 513 * Unfortunately it does not seem to correspond exactly to any of the 514 * five variants of EBCDIC documented in IBM's _Enterprise Systems 515 * Architecture/390: Principles of Operation_, SA22-7201-06, Seventh 516 * Edition, July, 1999, pp. I-1 - I-4. 517 * 518 * Fortunately, though, all versions of EBCDIC, including this one, agree 519 * on most of the printing characters that also appear in (7-bit) ASCII. 520 * Of these, only '|', '!', '~', '^', '[', and ']' are in question at all. 521 * 522 * Fortunately too, there is general agreement that codes 0x00 through 523 * 0x3F represent control characters, 0x41 a nonbreaking space, and the 524 * remainder printing characters. 525 * 526 * This is sufficient to allow us to identify EBCDIC text and to distinguish 527 * between old-style and internationalized examples of text. 528 */ 529 530private unsigned char ebcdic_to_ascii[] = { 531 0, 1, 2, 3, 156, 9, 134, 127, 151, 141, 142, 11, 12, 13, 14, 15, 532 16, 17, 18, 19, 157, 133, 8, 135, 24, 25, 146, 143, 28, 29, 30, 31, 533128, 129, 130, 131, 132, 10, 23, 27, 136, 137, 138, 139, 140, 5, 6, 7, 534144, 145, 22, 147, 148, 149, 150, 4, 152, 153, 154, 155, 20, 21, 158, 26, 535' ', 160, 161, 162, 163, 164, 165, 166, 167, 168, 213, '.', '<', '(', '+', '|', 536'&', 169, 170, 171, 172, 173, 174, 175, 176, 177, '!', '$', '*', ')', ';', '~', 537'-', '/', 178, 179, 180, 181, 182, 183, 184, 185, 203, ',', '%', '_', '>', '?', 538186, 187, 188, 189, 190, 191, 192, 193, 194, '`', ':', '#', '@', '\'','=', '"', 539195, 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 196, 197, 198, 199, 200, 201, 540202, 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', '^', 204, 205, 206, 207, 208, 541209, 229, 's', 't', 'u', 'v', 'w', 'x', 'y', 'z', 210, 211, 212, '[', 214, 215, 542216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, ']', 230, 231, 543'{', 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 232, 233, 234, 235, 236, 237, 544'}', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 238, 239, 240, 241, 242, 243, 545'\\',159, 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', 244, 245, 246, 247, 248, 249, 546'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 250, 251, 252, 253, 254, 255 547}; 548 549#ifdef notdef 550/* 551 * The following EBCDIC-to-ASCII table may relate more closely to reality, 552 * or at least to modern reality. It comes from 553 * 554 * http://ftp.s390.ibm.com/products/oe/bpxqp9.html 555 * 556 * and maps the characters of EBCDIC code page 1047 (the code used for 557 * Unix-derived software on IBM's 390 systems) to the corresponding 558 * characters from ISO 8859-1. 559 * 560 * If this table is used instead of the above one, some of the special 561 * cases for the NEL character can be taken out of the code. 562 */ 563 564private unsigned char ebcdic_1047_to_8859[] = { 5650x00,0x01,0x02,0x03,0x9C,0x09,0x86,0x7F,0x97,0x8D,0x8E,0x0B,0x0C,0x0D,0x0E,0x0F, 5660x10,0x11,0x12,0x13,0x9D,0x0A,0x08,0x87,0x18,0x19,0x92,0x8F,0x1C,0x1D,0x1E,0x1F, 5670x80,0x81,0x82,0x83,0x84,0x85,0x17,0x1B,0x88,0x89,0x8A,0x8B,0x8C,0x05,0x06,0x07, 5680x90,0x91,0x16,0x93,0x94,0x95,0x96,0x04,0x98,0x99,0x9A,0x9B,0x14,0x15,0x9E,0x1A, 5690x20,0xA0,0xE2,0xE4,0xE0,0xE1,0xE3,0xE5,0xE7,0xF1,0xA2,0x2E,0x3C,0x28,0x2B,0x7C, 5700x26,0xE9,0xEA,0xEB,0xE8,0xED,0xEE,0xEF,0xEC,0xDF,0x21,0x24,0x2A,0x29,0x3B,0x5E, 5710x2D,0x2F,0xC2,0xC4,0xC0,0xC1,0xC3,0xC5,0xC7,0xD1,0xA6,0x2C,0x25,0x5F,0x3E,0x3F, 5720xF8,0xC9,0xCA,0xCB,0xC8,0xCD,0xCE,0xCF,0xCC,0x60,0x3A,0x23,0x40,0x27,0x3D,0x22, 5730xD8,0x61,0x62,0x63,0x64,0x65,0x66,0x67,0x68,0x69,0xAB,0xBB,0xF0,0xFD,0xFE,0xB1, 5740xB0,0x6A,0x6B,0x6C,0x6D,0x6E,0x6F,0x70,0x71,0x72,0xAA,0xBA,0xE6,0xB8,0xC6,0xA4, 5750xB5,0x7E,0x73,0x74,0x75,0x76,0x77,0x78,0x79,0x7A,0xA1,0xBF,0xD0,0x5B,0xDE,0xAE, 5760xAC,0xA3,0xA5,0xB7,0xA9,0xA7,0xB6,0xBC,0xBD,0xBE,0xDD,0xA8,0xAF,0x5D,0xB4,0xD7, 5770x7B,0x41,0x42,0x43,0x44,0x45,0x46,0x47,0x48,0x49,0xAD,0xF4,0xF6,0xF2,0xF3,0xF5, 5780x7D,0x4A,0x4B,0x4C,0x4D,0x4E,0x4F,0x50,0x51,0x52,0xB9,0xFB,0xFC,0xF9,0xFA,0xFF, 5790x5C,0xF7,0x53,0x54,0x55,0x56,0x57,0x58,0x59,0x5A,0xB2,0xD4,0xD6,0xD2,0xD3,0xD5, 5800x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39,0xB3,0xDB,0xDC,0xD9,0xDA,0x9F 581}; 582#endif 583 584/* 585 * Copy buf[0 ... nbytes-1] into out[], translating EBCDIC to ASCII. 586 */ 587private void 588from_ebcdic(const unsigned char *buf, size_t nbytes, unsigned char *out) 589{ 590 size_t i; 591 592 for (i = 0; i < nbytes; i++) { 593 out[i] = ebcdic_to_ascii[buf[i]]; 594 } 595} 596