| 1 | /* -*-c-*- |
| 2 | * |
| 3 | * $Id: rspit.c,v 1.4 2000/06/17 12:08:28 mdw Exp $ |
| 4 | * |
| 5 | * Spit out random numbers |
| 6 | * |
| 7 | * (c) 1999 Straylight/Edgeware |
| 8 | */ |
| 9 | |
| 10 | /*----- Licensing notice --------------------------------------------------* |
| 11 | * |
| 12 | * This file is part of Catacomb. |
| 13 | * |
| 14 | * Catacomb is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU Library General Public License as |
| 16 | * published by the Free Software Foundation; either version 2 of the |
| 17 | * License, or (at your option) any later version. |
| 18 | * |
| 19 | * Catacomb is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU Library General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU Library General Public |
| 25 | * License along with Catacomb; if not, write to the Free |
| 26 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
| 27 | * MA 02111-1307, USA. |
| 28 | */ |
| 29 | |
| 30 | /*----- Revision history --------------------------------------------------* |
| 31 | * |
| 32 | * $Log: rspit.c,v $ |
| 33 | * Revision 1.4 2000/06/17 12:08:28 mdw |
| 34 | * Restructure handling of cipher-based generators. Add counter-mode |
| 35 | * ciphers and MGF-1 hash functions. Add FIPS 140-1 and Maurer's tests. |
| 36 | * |
| 37 | * Revision 1.3 2000/02/12 18:21:03 mdw |
| 38 | * Overhaul of key management (again). |
| 39 | * |
| 40 | * Revision 1.2 1999/12/22 15:59:51 mdw |
| 41 | * New prime-search system. Read BBS keys from key files. |
| 42 | * |
| 43 | * Revision 1.1 1999/12/10 23:29:13 mdw |
| 44 | * Emit random numbers for statistical tests. |
| 45 | * |
| 46 | */ |
| 47 | |
| 48 | /*----- Header files ------------------------------------------------------*/ |
| 49 | |
| 50 | #include "config.h" |
| 51 | |
| 52 | #include <assert.h> |
| 53 | #include <errno.h> |
| 54 | #include <math.h> |
| 55 | #include <signal.h> |
| 56 | #include <stdio.h> |
| 57 | #include <stdlib.h> |
| 58 | #include <string.h> |
| 59 | #include <time.h> |
| 60 | |
| 61 | #ifndef PORTABLE |
| 62 | # include <unistd.h> |
| 63 | #endif |
| 64 | |
| 65 | #include <mLib/darray.h> |
| 66 | #include <mLib/dstr.h> |
| 67 | #include <mLib/mdwopt.h> |
| 68 | #include <mLib/quis.h> |
| 69 | #include <mLib/report.h> |
| 70 | #include <mLib/sub.h> |
| 71 | |
| 72 | #include "fipstest.h" |
| 73 | #include "grand.h" |
| 74 | #include "maurer.h" |
| 75 | #include "key.h" |
| 76 | |
| 77 | #include "lcrand.h" |
| 78 | #include "fibrand.h" |
| 79 | #include "rand.h" |
| 80 | #include "noise.h" |
| 81 | |
| 82 | #include "bbs.h" |
| 83 | #include "mprand.h" |
| 84 | |
| 85 | #include "rc4.h" |
| 86 | #include "seal.h" |
| 87 | |
| 88 | #include "des-ofb.h" |
| 89 | #include "des3-ofb.h" |
| 90 | #include "rc2-ofb.h" |
| 91 | #include "rc5-ofb.h" |
| 92 | #include "blowfish-ofb.h" |
| 93 | #include "twofish-ofb.h" |
| 94 | #include "idea-ofb.h" |
| 95 | #include "cast128-ofb.h" |
| 96 | #include "cast256-ofb.h" |
| 97 | #include "rijndael-ofb.h" |
| 98 | #include "serpent-ofb.h" |
| 99 | |
| 100 | #include "des-counter.h" |
| 101 | #include "des3-counter.h" |
| 102 | #include "rc2-counter.h" |
| 103 | #include "rc5-counter.h" |
| 104 | #include "blowfish-counter.h" |
| 105 | #include "twofish-counter.h" |
| 106 | #include "idea-counter.h" |
| 107 | #include "cast128-counter.h" |
| 108 | #include "cast256-counter.h" |
| 109 | #include "rijndael-counter.h" |
| 110 | #include "serpent-counter.h" |
| 111 | |
| 112 | #include "md4-mgf.h" |
| 113 | #include "md5-mgf.h" |
| 114 | #include "sha-mgf.h" |
| 115 | #include "rmd160-mgf.h" |
| 116 | |
| 117 | #include "rmd160.h" |
| 118 | |
| 119 | /*----- Data structures ---------------------------------------------------*/ |
| 120 | |
| 121 | typedef struct gen { |
| 122 | const char *name; |
| 123 | grand *(*seed)(unsigned /*i*/); |
| 124 | unsigned i; |
| 125 | const char *help; |
| 126 | } gen; |
| 127 | |
| 128 | static gen generators[]; |
| 129 | |
| 130 | #define CIPHERS \ |
| 131 | E(DES, des) \ |
| 132 | E(DES3, des3) \ |
| 133 | E(RC2, rc2) \ |
| 134 | E(RC5, rc5) \ |
| 135 | E(BLOWFISH, blowfish) \ |
| 136 | E(TWOFISH, twofish) \ |
| 137 | E(IDEA, idea) \ |
| 138 | E(CAST128, cast128) \ |
| 139 | E(CAST256, cast256) \ |
| 140 | E(RIJNDAEL, rijndael) \ |
| 141 | E(SERPENT, serpent) |
| 142 | |
| 143 | #define HASHES \ |
| 144 | E(MD4, md4) \ |
| 145 | E(MD5, md5) \ |
| 146 | E(SHA, sha) \ |
| 147 | E(RMD160, rmd160) |
| 148 | |
| 149 | #define E(PRE, pre) CIPHER_##PRE, |
| 150 | enum { CIPHERS CIPHER__bogus }; |
| 151 | #undef E |
| 152 | |
| 153 | #define E(PRE, pre) HASH_##PRE, |
| 154 | enum { HASHES HASH__bogus }; |
| 155 | #undef E |
| 156 | |
| 157 | static struct { |
| 158 | const octet *keysz; |
| 159 | size_t blksz; |
| 160 | grand *(*ofb)(const void */*k*/, size_t /*sz*/); |
| 161 | grand *(*counter)(const void */*k*/, size_t /*sz*/); |
| 162 | } ciphertab[] = { |
| 163 | #define E(PRE, pre) \ |
| 164 | { pre##_keysz, PRE##_BLKSZ, pre##_ofbrand, pre##_counterrand }, |
| 165 | CIPHERS |
| 166 | #undef E |
| 167 | }; |
| 168 | |
| 169 | static struct { |
| 170 | const gchash *h; |
| 171 | const octet *keysz; |
| 172 | grand *(*mgf)(const void */*k*/, size_t /*sz*/); |
| 173 | } hashtab[] = { |
| 174 | #define E(PRE, pre) \ |
| 175 | { &pre, pre##_mgfkeysz, pre##_mgfrand }, |
| 176 | HASHES |
| 177 | #undef E |
| 178 | }; |
| 179 | |
| 180 | /*----- Miscellaneous static data -----------------------------------------*/ |
| 181 | |
| 182 | static FILE *outfp = stdout; |
| 183 | static size_t outsz = 0; |
| 184 | |
| 185 | static int argc; |
| 186 | static char **argv; |
| 187 | |
| 188 | static unsigned flags = 0; |
| 189 | |
| 190 | enum { |
| 191 | f_progress = 1, |
| 192 | f_file = 2, |
| 193 | f_fips = 4, |
| 194 | f_maurer = 8 |
| 195 | }; |
| 196 | |
| 197 | /*----- Help options ------------------------------------------------------*/ |
| 198 | |
| 199 | static void usage(FILE *fp) |
| 200 | { |
| 201 | pquis(fp, "Usage: $ generator [options]\n"); |
| 202 | } |
| 203 | |
| 204 | static void version(FILE *fp) |
| 205 | { |
| 206 | pquis(fp, "$, Catacomb version " VERSION "\n"); |
| 207 | } |
| 208 | |
| 209 | static void help(FILE *fp) |
| 210 | { |
| 211 | version(fp); |
| 212 | fputc('\n', fp); |
| 213 | usage(fp); |
| 214 | pquis(fp, "\n\ |
| 215 | Emits a stream of random bytes suitable for, well, all sorts of things.\n\ |
| 216 | The primary objective is to be able to generate streams of input for\n\ |
| 217 | statistical tests, such as Diehard.\n\ |
| 218 | \n\ |
| 219 | Options are specific to the particular generator, although there's a\n\ |
| 220 | common core set:\n\ |
| 221 | \n\ |
| 222 | -h, --help Display this help message.\n\ |
| 223 | -v, --version Display the program's version number.\n\ |
| 224 | -u, --usage Display a useless usage message.\n\ |
| 225 | \n\ |
| 226 | -l, --list Show a list of the supported generators, with\n\ |
| 227 | their options.\n\ |
| 228 | -f, --fipstest Run the FIPS 140-1 randomness test.\n\ |
| 229 | -m, --maurer Run Maurer's universal statistical test.\n\ |
| 230 | -o, --output FILE Write output to FILE, not stdout.\n\ |
| 231 | -z, --size SIZE Emit SIZE bytes, not an unlimited number.\n\ |
| 232 | -p, --progress Show a little progress meter (on stderr).\n\ |
| 233 | \n\ |
| 234 | (A SIZE may be followed by `g' for gigabytes, `m' for megabytes, or\n\ |
| 235 | `k' for kilobytes. If unqualified, an amount in bytes is assumed.)\n\ |
| 236 | "); |
| 237 | } |
| 238 | |
| 239 | /*----- Main options parser -----------------------------------------------*/ |
| 240 | |
| 241 | static struct option opts[] = { |
| 242 | |
| 243 | /* --- Standard GNU help options --- */ |
| 244 | |
| 245 | { "help", 0, 0, 'h' }, |
| 246 | { "version", 0, 0, 'v' }, |
| 247 | { "usage", 0, 0, 'u' }, |
| 248 | |
| 249 | /* --- Other useful things --- */ |
| 250 | |
| 251 | { "list", 0, 0, 'l' }, |
| 252 | { "fipstest", 0, 0, 'f' }, |
| 253 | { "maurer", 0, 0, 'm' }, |
| 254 | { "output", OPTF_ARGREQ, 0, 'o' }, |
| 255 | { "size", OPTF_ARGREQ, 0, 'z' }, |
| 256 | { "progress", 0, 0, 'p' }, |
| 257 | |
| 258 | /* --- End of main table --- */ |
| 259 | |
| 260 | { 0, 0, 0, 0 } |
| 261 | }; |
| 262 | |
| 263 | static const char *sopts = "hvu lfmo:z:p"; |
| 264 | |
| 265 | #ifndef OPTION_V |
| 266 | DA_DECL(option_v, struct option); |
| 267 | # define OPTION_V |
| 268 | #endif |
| 269 | |
| 270 | static option_v optv = DA_INIT; |
| 271 | static dstr optd = DSTR_INIT; |
| 272 | |
| 273 | /* --- @addopts@ --- * |
| 274 | * |
| 275 | * Arguments: @const char *s@ = pointer to short options |
| 276 | * @struct option *l@ = pointer to long options |
| 277 | * |
| 278 | * Returns: --- |
| 279 | * |
| 280 | * Use: Adds a collection of options to the table. |
| 281 | */ |
| 282 | |
| 283 | static void addopts(const char *s, struct option *l) |
| 284 | { |
| 285 | dstr_puts(&optd, s); |
| 286 | if (DA_LEN(&optv)) |
| 287 | DA_SHRINK(&optv, 1); |
| 288 | while (l->name) |
| 289 | DA_PUSH(&optv, *l++); |
| 290 | DA_PUSH(&optv, *l); |
| 291 | } |
| 292 | |
| 293 | /* --- @opt@ --- * |
| 294 | * |
| 295 | * Arguments: --- |
| 296 | * |
| 297 | * Returns: Next option from argument array. |
| 298 | * |
| 299 | * Use: Fetches options, handling the standard ones. |
| 300 | */ |
| 301 | |
| 302 | static int opt(void) |
| 303 | { |
| 304 | for (;;) { |
| 305 | int i = mdwopt(argc, argv, optd.buf, DA(&optv), 0, 0, 0); |
| 306 | switch (i) { |
| 307 | case 'h': |
| 308 | help(stdout); |
| 309 | exit(0); |
| 310 | case 'v': |
| 311 | version(stdout); |
| 312 | exit(0); |
| 313 | case 'u': |
| 314 | usage(stdout); |
| 315 | exit(0); |
| 316 | case 'l': { |
| 317 | gen *g; |
| 318 | puts("Generators supported:"); |
| 319 | for (g = generators; g->name; g++) |
| 320 | printf(" %s %s\n", g->name, g->help); |
| 321 | exit(0); |
| 322 | } break; |
| 323 | case 'f': |
| 324 | flags |= f_fips; |
| 325 | break; |
| 326 | case 'm': |
| 327 | flags |= f_maurer; |
| 328 | break; |
| 329 | case 'o': |
| 330 | if (flags & f_file) |
| 331 | die(EXIT_FAILURE, "already set an output file"); |
| 332 | if (strcmp(optarg, "-") == 0) |
| 333 | outfp = stdout; |
| 334 | else { |
| 335 | outfp = fopen(optarg, "w"); |
| 336 | if (!outfp) { |
| 337 | die(EXIT_FAILURE, "couldn't open output file `%s': %s", |
| 338 | optarg, strerror(errno)); |
| 339 | } |
| 340 | } |
| 341 | flags |= f_file; |
| 342 | break; |
| 343 | case 'z': { |
| 344 | char *p; |
| 345 | outsz = strtoul(optarg, &p, 0); |
| 346 | if (!outsz) |
| 347 | die(EXIT_FAILURE, "bad number `%s'", optarg); |
| 348 | switch (*p) { |
| 349 | case 'G': case 'g': outsz *= 1024; |
| 350 | case 'M': case 'm': outsz *= 1024; |
| 351 | case 'K': case 'k': outsz *= 1024; |
| 352 | case 0: |
| 353 | break; |
| 354 | default: |
| 355 | die(EXIT_FAILURE, "bad suffix `%s'", p); |
| 356 | break; |
| 357 | } |
| 358 | if (*p && p[1] != 0) |
| 359 | die(EXIT_FAILURE, "bad suffix `%s'", p); |
| 360 | } break; |
| 361 | case 'p': |
| 362 | flags |= f_progress; |
| 363 | break; |
| 364 | default: |
| 365 | return (i); |
| 366 | } |
| 367 | } |
| 368 | } |
| 369 | |
| 370 | /*----- Manglers for seed strings -----------------------------------------*/ |
| 371 | |
| 372 | /* --- @unhex@ --- * |
| 373 | * |
| 374 | * Arguments: @const char *p@ = pointer to input string |
| 375 | * @char **end@ = where the end goes |
| 376 | * @dstr *d@ = output buffer |
| 377 | * |
| 378 | * Returns: --- |
| 379 | * |
| 380 | * Use: Transforms a hex string into a chunk of binary data. |
| 381 | */ |
| 382 | |
| 383 | static void unhex(const char *p, char **end, dstr *d) |
| 384 | { |
| 385 | while (p[0] && p[1]) { |
| 386 | int x = p[0], y = p[1]; |
| 387 | if ('0' <= x && x <= '9') x -= '0'; |
| 388 | else if ('A' <= x && x <= 'F') x -= 'A' - 10; |
| 389 | else if ('a' <= x && x <= 'f') x -= 'a' - 10; |
| 390 | else x = 0; |
| 391 | if ('0' <= y && y <= '9') y -= '0'; |
| 392 | else if ('A' <= y && y <= 'F') y -= 'A' - 10; |
| 393 | else if ('a' <= y && y <= 'f') y -= 'a' - 10; |
| 394 | else y = 0; |
| 395 | DPUTC(d, (x << 4) + y); |
| 396 | p += 2; |
| 397 | } |
| 398 | *end = (char *)p; |
| 399 | } |
| 400 | |
| 401 | /* --- Generate a key --- */ |
| 402 | |
| 403 | static void textkey(dstr *d, const char *p, const octet *ksz) |
| 404 | { |
| 405 | size_t sz = strlen(p); |
| 406 | |
| 407 | if (!sz) |
| 408 | die(EXIT_FAILURE, "zero-length key string"); |
| 409 | if (keysz(sz, ksz) != sz) |
| 410 | DPUTM(d, p, sz); |
| 411 | else { |
| 412 | rmd160_mgfctx g; |
| 413 | rmd160_mgfinit(&g, p, sz); |
| 414 | sz = keysz(0, ksz); |
| 415 | dstr_ensure(d, sz); |
| 416 | rmd160_mgfencrypt(&g, 0, d->buf, sz); |
| 417 | d->len += sz; |
| 418 | } |
| 419 | assert(((void)"I can't seem to choose a good key size", |
| 420 | keysz(d->len, ksz) == d->len)); |
| 421 | } |
| 422 | |
| 423 | static void hexkey(dstr *d, const char *p, const octet *ksz) |
| 424 | { |
| 425 | char *q; |
| 426 | unhex(optarg, &q, d); |
| 427 | if (*q) |
| 428 | die(EXIT_FAILURE, "bad hex key `%s'", p); |
| 429 | if (keysz(d->len, ksz) != d->len) |
| 430 | die(EXIT_FAILURE, "bad key length"); |
| 431 | } |
| 432 | |
| 433 | static void randkey(dstr *d, const octet *ksz) |
| 434 | { |
| 435 | size_t sz = keysz(0, ksz); |
| 436 | dstr_ensure(d, sz); |
| 437 | rand_get(RAND_GLOBAL, d->buf, sz); |
| 438 | d->len += sz; |
| 439 | } |
| 440 | |
| 441 | /*----- Generators --------------------------------------------------------*/ |
| 442 | |
| 443 | /* --- Blum-Blum-Shub strong generator --- */ |
| 444 | |
| 445 | static grand *gen_bbs(unsigned i) |
| 446 | { |
| 447 | /* --- Default modulus --- * |
| 448 | * |
| 449 | * The factors of this number are |
| 450 | * |
| 451 | * @p = 1229936431484295969649886203367009966370895964206162032259292413@ |
| 452 | * @7754313537966036459299022912838407755462506416274551744201653277@ |
| 453 | * @313130311731673973886822067@ |
| 454 | * |
| 455 | * @q = 9798171783943489959487301695884963889684294764514008432498259742@ |
| 456 | * @5374320073594018817245784145742769603334292182227671519041431067@ |
| 457 | * @61344781426317516045890159@ |
| 458 | * |
| 459 | * Both %$p$% and %$q$% are prime; %$(p - 1)/2$% and %$(q - 1)/2$% have no |
| 460 | * common factors. They were found using this program, with random |
| 461 | * starting points. |
| 462 | * |
| 463 | * I hope that, by publishing these factors, I'll dissuade people from |
| 464 | * actually using this modulus in an attempt to attain real security. The |
| 465 | * program is quite quick at finding Blum numbers, so there's no excuse for |
| 466 | * not generating your own. |
| 467 | */ |
| 468 | |
| 469 | const char *mt = |
| 470 | "120511284390135742513572142094334711443073194119732569353820828435640527418092392240366088035509890969913081816369160298961490135716255689660470370755013177656905237112577648090277537209936078171554274553448103698084782669252936352843649980105109850503830397166360721262431179505917248447259735253684659338653"; |
| 471 | |
| 472 | /* --- Other things --- */ |
| 473 | |
| 474 | grand *r; |
| 475 | const char *xt = 0; |
| 476 | unsigned bits = 1024; |
| 477 | mp *m, *x; |
| 478 | unsigned show = 0; |
| 479 | const char *kfile = 0, *id = 0, *ktype = 0; |
| 480 | |
| 481 | /* --- Parse options --- */ |
| 482 | |
| 483 | static struct option opts[] = { |
| 484 | { "modulus", OPTF_ARGREQ, 0, 'M' }, |
| 485 | { "generate", 0, 0, 'g' }, |
| 486 | { "seed", OPTF_ARGREQ, 0, 's' }, |
| 487 | { "bits", OPTF_ARGREQ, 0, 'b' }, |
| 488 | { "show", 0, 0, 'S' }, |
| 489 | { "keyring", OPTF_ARGREQ, 0, 'k' }, |
| 490 | { "id", OPTF_ARGREQ, 0, 'i' }, |
| 491 | { "type", OPTF_ARGREQ, 0, 't' }, |
| 492 | { 0, 0, 0, 0 } |
| 493 | }; |
| 494 | |
| 495 | addopts("M:gs:b:Sk:i:t:", opts); |
| 496 | |
| 497 | for (;;) { |
| 498 | int o = opt(); |
| 499 | if (o < 0) |
| 500 | break; |
| 501 | switch (o) { |
| 502 | case 'M': |
| 503 | mt = optarg; |
| 504 | break; |
| 505 | case 'g': |
| 506 | mt = 0; |
| 507 | break; |
| 508 | case 's': |
| 509 | xt = optarg; |
| 510 | break; |
| 511 | case 'b': |
| 512 | bits = strtoul(optarg, 0, 0); |
| 513 | if (bits == 0) |
| 514 | die(EXIT_FAILURE, "bad number of bits `%s'", optarg); |
| 515 | break; |
| 516 | case 'S': |
| 517 | show = 1; |
| 518 | break; |
| 519 | case 'k': |
| 520 | kfile = optarg; |
| 521 | mt = 0; |
| 522 | break; |
| 523 | case 'i': |
| 524 | id = optarg; |
| 525 | mt = 0; |
| 526 | break; |
| 527 | case 't': |
| 528 | ktype = optarg; |
| 529 | mt = 0; |
| 530 | break; |
| 531 | default: |
| 532 | return (0); |
| 533 | } |
| 534 | } |
| 535 | |
| 536 | /* --- Generate a modulus if one is requested --- */ |
| 537 | |
| 538 | if (mt) { |
| 539 | char *p; |
| 540 | m = mp_readstring(MP_NEW, mt, &p, 0); |
| 541 | if (!m || *p || (m->v[0] & 3) != 1) |
| 542 | die(EXIT_FAILURE, "bad modulus `%s'", mt); |
| 543 | /* Unfortunately I don't know how to test for a Blum integer */ |
| 544 | } else if (kfile || id || ktype) { |
| 545 | key_file kf; |
| 546 | key *kk; |
| 547 | key_data *kd; |
| 548 | |
| 549 | /* --- Open the key file --- */ |
| 550 | |
| 551 | if (!kfile) |
| 552 | kfile = "keyring"; |
| 553 | if (key_open(&kf, kfile, KOPEN_READ, key_moan, 0)) { |
| 554 | die(EXIT_FAILURE, "error opening key file `%s': %s", |
| 555 | kfile, strerror(errno)); |
| 556 | } |
| 557 | |
| 558 | /* --- Find the key --- */ |
| 559 | |
| 560 | if (id) { |
| 561 | if ((kk = key_bytag(&kf, id)) == 0) |
| 562 | die(EXIT_FAILURE, "key `%s' not found", id); |
| 563 | } else { |
| 564 | if (!ktype) |
| 565 | ktype = "bbs"; |
| 566 | if ((kk = key_bytype(&kf, ktype)) == 0) |
| 567 | die(EXIT_FAILURE, "no suitable key with type `%s' found", ktype); |
| 568 | } |
| 569 | |
| 570 | /* --- Read the key data --- */ |
| 571 | |
| 572 | if ((kk->k.e & KF_ENCMASK) != KENC_STRUCT) |
| 573 | die(EXIT_FAILURE, "key is not structured"); |
| 574 | if ((kd = key_structfind(&kk->k, "n")) == 0) |
| 575 | die(EXIT_FAILURE, "key has no subkey `n'"); |
| 576 | if ((kd->e & KF_ENCMASK) != KENC_MP) |
| 577 | die(EXIT_FAILURE, "incomatible subkey encoding"); |
| 578 | m = MP_COPY(kd->u.m); |
| 579 | key_close(&kf); |
| 580 | } else { |
| 581 | bbs_param bp; |
| 582 | |
| 583 | if (bbs_gen(&bp, bits, &rand_global, 0, |
| 584 | (flags & f_progress) ? pgen_ev : 0, 0)) |
| 585 | die(EXIT_FAILURE, "modulus generation failed"); |
| 586 | m = bp.n; |
| 587 | |
| 588 | if (show) { |
| 589 | fputs("p = ", stderr); |
| 590 | mp_writefile(bp.p, stderr, 10); |
| 591 | fputs("\nq = ", stderr); |
| 592 | mp_writefile(bp.q, stderr, 10); |
| 593 | fputs("\nn = ", stderr); |
| 594 | mp_writefile(bp.n, stderr, 10); |
| 595 | fputc('\n', stderr); |
| 596 | } |
| 597 | |
| 598 | mp_drop(bp.p); |
| 599 | mp_drop(bp.q); |
| 600 | } |
| 601 | |
| 602 | /* --- Set up a seed --- */ |
| 603 | |
| 604 | if (!xt) |
| 605 | x = mprand(MP_NEW, mp_bits(m) - 1, &rand_global, 1); |
| 606 | else { |
| 607 | char *p; |
| 608 | x = mp_readstring(MP_NEW, xt, &p, 0); |
| 609 | if (*p) |
| 610 | die(EXIT_FAILURE, "bad modulus `%s'", xt); |
| 611 | } |
| 612 | |
| 613 | /* --- Right --- */ |
| 614 | |
| 615 | r = bbs_rand(m, x); |
| 616 | |
| 617 | mp_drop(m); |
| 618 | mp_drop(x); |
| 619 | return (r); |
| 620 | } |
| 621 | |
| 622 | /* --- Catacomb's random number generator --- */ |
| 623 | |
| 624 | static grand *gen_rand(unsigned i) |
| 625 | { |
| 626 | grand *r = rand_create(); |
| 627 | dstr d = DSTR_INIT; |
| 628 | |
| 629 | static struct option opts[] = { |
| 630 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 631 | { "text", OPTF_ARGREQ, 0, 't' }, |
| 632 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 633 | { 0, 0, 0, 0 } |
| 634 | }; |
| 635 | |
| 636 | addopts("k:t:H:n", opts); |
| 637 | |
| 638 | r->ops->misc(r, RAND_NOISESRC, &noise_source); |
| 639 | r->ops->misc(r, RAND_SEED, 160); |
| 640 | |
| 641 | for (;;) { |
| 642 | int o = opt(); |
| 643 | if (o < 0) |
| 644 | break; |
| 645 | switch (o) { |
| 646 | case 'k': |
| 647 | DRESET(&d); |
| 648 | textkey(&d, optarg, rmd160_mackeysz); |
| 649 | r->ops->misc(r, RAND_KEY, d.buf, d.len); |
| 650 | break; |
| 651 | case 't': |
| 652 | r->ops->misc(r, GRAND_SEEDBLOCK, optarg, strlen(optarg)); |
| 653 | break; |
| 654 | case 'H': |
| 655 | DRESET(&d); |
| 656 | hexkey(&d, optarg, rmd160_mackeysz); |
| 657 | r->ops->misc(r, GRAND_SEEDBLOCK, d.buf, d.len); |
| 658 | break; |
| 659 | } |
| 660 | } |
| 661 | |
| 662 | dstr_destroy(&d); |
| 663 | return (r); |
| 664 | } |
| 665 | |
| 666 | /* --- RC4 output --- */ |
| 667 | |
| 668 | static grand *gen_rc4(unsigned i) |
| 669 | { |
| 670 | grand *r; |
| 671 | dstr d = DSTR_INIT; |
| 672 | |
| 673 | static struct option opts[] = { |
| 674 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 675 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 676 | { 0, 0, 0, 0 } |
| 677 | }; |
| 678 | |
| 679 | addopts("k:H:", opts); |
| 680 | |
| 681 | for (;;) { |
| 682 | int o = opt(); |
| 683 | if (o < 0) |
| 684 | break; |
| 685 | switch (o) { |
| 686 | case 'k': |
| 687 | DRESET(&d); |
| 688 | textkey(&d, optarg, rc4_keysz); |
| 689 | break; |
| 690 | case 'H': |
| 691 | DRESET(&d); |
| 692 | hexkey(&d, optarg, rc4_keysz); |
| 693 | break; |
| 694 | default: |
| 695 | return (0); |
| 696 | } |
| 697 | } |
| 698 | |
| 699 | if (!d.len) |
| 700 | randkey(&d, rc4_keysz); |
| 701 | r = rc4_rand(d.buf, d.len); |
| 702 | dstr_destroy(&d); |
| 703 | return (r); |
| 704 | } |
| 705 | |
| 706 | /* --- SEAL output --- */ |
| 707 | |
| 708 | static grand *gen_seal(unsigned i) |
| 709 | { |
| 710 | grand *r; |
| 711 | dstr d = DSTR_INIT; |
| 712 | uint32 n = 0; |
| 713 | |
| 714 | static struct option opts[] = { |
| 715 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 716 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 717 | { "sequence", OPTF_ARGREQ, 0, 'n' }, |
| 718 | { 0, 0, 0, 0 } |
| 719 | }; |
| 720 | |
| 721 | addopts("k:H:n:", opts); |
| 722 | |
| 723 | for (;;) { |
| 724 | int o = opt(); |
| 725 | if (o < 0) |
| 726 | break; |
| 727 | switch (o) { |
| 728 | case 'k': |
| 729 | DRESET(&d); |
| 730 | textkey(&d, optarg, seal_keysz); |
| 731 | break; |
| 732 | case 'H': |
| 733 | DRESET(&d); |
| 734 | hexkey(&d, optarg, seal_keysz); |
| 735 | break; |
| 736 | case 'n': { |
| 737 | char *p; |
| 738 | n = strtoul(optarg, &p, 0); |
| 739 | if (*p) |
| 740 | die(EXIT_FAILURE, "bad number `%s'", optarg); |
| 741 | } break; |
| 742 | default: |
| 743 | return (0); |
| 744 | } |
| 745 | } |
| 746 | |
| 747 | if (!d.len) |
| 748 | randkey(&d, seal_keysz); |
| 749 | r = seal_rand(d.buf, d.len, n); |
| 750 | dstr_destroy(&d); |
| 751 | return (r); |
| 752 | } |
| 753 | |
| 754 | /* --- Output feedback generators --- */ |
| 755 | |
| 756 | static grand *gen_ofb(unsigned i) |
| 757 | { |
| 758 | grand *r; |
| 759 | dstr d = DSTR_INIT; |
| 760 | dstr iv = DSTR_INIT; |
| 761 | |
| 762 | static struct option opts[] = { |
| 763 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 764 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 765 | { "iv", OPTF_ARGREQ, 0, 'i' }, |
| 766 | { 0, 0, 0, 0 } |
| 767 | }; |
| 768 | |
| 769 | addopts("k:H:i:", opts); |
| 770 | |
| 771 | for (;;) { |
| 772 | int o = opt(); |
| 773 | if (o < 0) |
| 774 | break; |
| 775 | switch (o) { |
| 776 | case 'k': |
| 777 | DRESET(&d); |
| 778 | textkey(&d, optarg, ciphertab[i].keysz); |
| 779 | break; |
| 780 | case 'H': |
| 781 | DRESET(&d); |
| 782 | hexkey(&d, optarg, ciphertab[i].keysz); |
| 783 | break; |
| 784 | case 'i': { |
| 785 | char *p; |
| 786 | unhex(optarg, &p, &iv); |
| 787 | if (*p) |
| 788 | die(EXIT_FAILURE, "bad hex IV `%s'", optarg); |
| 789 | } break; |
| 790 | default: |
| 791 | return (0); |
| 792 | } |
| 793 | } |
| 794 | |
| 795 | if (!d.len) |
| 796 | randkey(&d, ciphertab[i].keysz); |
| 797 | r = ciphertab[i].ofb(d.buf, d.len); |
| 798 | if (iv.len) { |
| 799 | if (iv.len != ciphertab[i].blksz) { |
| 800 | die(EXIT_FAILURE, "bad IV length %lu (must be %lu)", |
| 801 | (unsigned long)iv.len, (unsigned long)ciphertab[i].blksz); |
| 802 | } |
| 803 | r->ops->misc(r, GRAND_SEEDBLOCK, iv.buf); |
| 804 | } |
| 805 | |
| 806 | dstr_destroy(&d); |
| 807 | dstr_destroy(&iv); |
| 808 | return (r); |
| 809 | } |
| 810 | |
| 811 | /* --- Counter generators --- */ |
| 812 | |
| 813 | static grand *gen_counter(unsigned i) |
| 814 | { |
| 815 | grand *r; |
| 816 | dstr d = DSTR_INIT; |
| 817 | dstr iv = DSTR_INIT; |
| 818 | |
| 819 | static struct option opts[] = { |
| 820 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 821 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 822 | { "iv", OPTF_ARGREQ, 0, 'i' }, |
| 823 | { 0, 0, 0, 0 } |
| 824 | }; |
| 825 | |
| 826 | addopts("k:H:i:", opts); |
| 827 | |
| 828 | for (;;) { |
| 829 | int o = opt(); |
| 830 | if (o < 0) |
| 831 | break; |
| 832 | switch (o) { |
| 833 | case 'k': |
| 834 | DRESET(&d); |
| 835 | textkey(&d, optarg, ciphertab[i].keysz); |
| 836 | break; |
| 837 | case 'H': |
| 838 | DRESET(&d); |
| 839 | hexkey(&d, optarg, ciphertab[i].keysz); |
| 840 | break; |
| 841 | case 'i': { |
| 842 | char *p; |
| 843 | unhex(optarg, &p, &iv); |
| 844 | if (*p) |
| 845 | die(EXIT_FAILURE, "bad hex IV `%s'", optarg); |
| 846 | } break; |
| 847 | default: |
| 848 | return (0); |
| 849 | } |
| 850 | } |
| 851 | |
| 852 | if (!d.len) |
| 853 | randkey(&d, ciphertab[i].keysz); |
| 854 | r = ciphertab[i].counter(d.buf, d.len); |
| 855 | if (iv.len) { |
| 856 | if (iv.len != ciphertab[i].blksz) { |
| 857 | die(EXIT_FAILURE, "bad IV length %lu (must be %lu)", |
| 858 | (unsigned long)iv.len, (unsigned long)ciphertab[i].blksz); |
| 859 | } |
| 860 | r->ops->misc(r, GRAND_SEEDBLOCK, iv.buf); |
| 861 | } |
| 862 | |
| 863 | dstr_destroy(&d); |
| 864 | dstr_destroy(&iv); |
| 865 | return (r); |
| 866 | } |
| 867 | |
| 868 | /* --- Mask generators --- */ |
| 869 | |
| 870 | static grand *gen_mgf(unsigned i) |
| 871 | { |
| 872 | grand *r; |
| 873 | dstr d = DSTR_INIT; |
| 874 | uint32 c = 0; |
| 875 | |
| 876 | static struct option opts[] = { |
| 877 | { "key", OPTF_ARGREQ, 0, 'k' }, |
| 878 | { "hex", OPTF_ARGREQ, 0, 'H' }, |
| 879 | { "index", OPTF_ARGREQ, 0, 'i' }, |
| 880 | { 0, 0, 0, 0 } |
| 881 | }; |
| 882 | |
| 883 | addopts("k:H:i:", opts); |
| 884 | |
| 885 | for (;;) { |
| 886 | int o = opt(); |
| 887 | if (o < 0) |
| 888 | break; |
| 889 | switch (o) { |
| 890 | case 'k': |
| 891 | DRESET(&d); |
| 892 | textkey(&d, optarg, hashtab[i].keysz); |
| 893 | break; |
| 894 | case 'H': |
| 895 | DRESET(&d); |
| 896 | hexkey(&d, optarg, hashtab[i].keysz); |
| 897 | break; |
| 898 | case 'i': { |
| 899 | char *p; |
| 900 | c = strtoul(optarg, &p, 0); |
| 901 | if (*p) |
| 902 | die(EXIT_FAILURE, "bad index `%s'", optarg); |
| 903 | } break; |
| 904 | default: |
| 905 | return (0); |
| 906 | } |
| 907 | } |
| 908 | |
| 909 | if (!d.len) |
| 910 | randkey(&d, hashtab[i].keysz); |
| 911 | |
| 912 | r = hashtab[i].mgf(d.buf, d.len); |
| 913 | if (c) |
| 914 | r->ops->misc(r, GRAND_SEEDUINT32, c); |
| 915 | |
| 916 | dstr_destroy(&d); |
| 917 | return (r); |
| 918 | } |
| 919 | |
| 920 | /* --- Fibonacci generator --- */ |
| 921 | |
| 922 | static grand *gen_fib(unsigned i) |
| 923 | { |
| 924 | grand *r; |
| 925 | uint32 s = 0; |
| 926 | char *p; |
| 927 | unsigned set = 0; |
| 928 | |
| 929 | static struct option opts[] = { |
| 930 | { "seed", OPTF_ARGREQ, 0, 's' }, |
| 931 | { 0, 0, 0, 0 } |
| 932 | }; |
| 933 | |
| 934 | addopts("s:", opts); |
| 935 | |
| 936 | for (;;) { |
| 937 | int o = opt(); |
| 938 | if (o < 0) |
| 939 | break; |
| 940 | switch (o) { |
| 941 | case 's': |
| 942 | s = strtoul(optarg, &p, 0); |
| 943 | if (*p) |
| 944 | die(EXIT_FAILURE, "bad integer `%s'", optarg); |
| 945 | set = 1; |
| 946 | break; |
| 947 | default: |
| 948 | return (0); |
| 949 | } |
| 950 | } |
| 951 | r = fibrand_create(s); |
| 952 | if (!set) |
| 953 | r->ops->misc(r, GRAND_SEEDRAND, &rand_global); |
| 954 | return (r); |
| 955 | } |
| 956 | |
| 957 | /* --- LC generator --- */ |
| 958 | |
| 959 | static grand *gen_lc(unsigned i) |
| 960 | { |
| 961 | uint32 s = 0; |
| 962 | char *p; |
| 963 | unsigned set = 0; |
| 964 | |
| 965 | static struct option opts[] = { |
| 966 | { "seed", OPTF_ARGREQ, 0, 's' }, |
| 967 | { 0, 0, 0, 0 } |
| 968 | }; |
| 969 | |
| 970 | addopts("s:", opts); |
| 971 | |
| 972 | for (;;) { |
| 973 | int o = opt(); |
| 974 | if (o < 0) |
| 975 | break; |
| 976 | switch (o) { |
| 977 | case 's': |
| 978 | s = strtoul(optarg, &p, 0); |
| 979 | if (*p) |
| 980 | die(EXIT_FAILURE, "bad integer `%s'", optarg); |
| 981 | set = 1; |
| 982 | break; |
| 983 | default: |
| 984 | return (0); |
| 985 | } |
| 986 | } |
| 987 | if (!set) { |
| 988 | do |
| 989 | s = rand_global.ops->range(&rand_global, LCRAND_P); |
| 990 | while (s == LCRAND_FIXEDPT); |
| 991 | } |
| 992 | return (lcrand_create(s)); |
| 993 | } |
| 994 | |
| 995 | /* --- Basic options parser -- can't generate output --- */ |
| 996 | |
| 997 | static grand *gen_opts(unsigned i) |
| 998 | { |
| 999 | while (opt() >= 0) |
| 1000 | ; |
| 1001 | return (0); |
| 1002 | } |
| 1003 | |
| 1004 | /*----- Generators table --------------------------------------------------*/ |
| 1005 | |
| 1006 | static gen generators[] = { |
| 1007 | { "fibonacci", gen_fib, 0, |
| 1008 | "[-s SEED]" }, |
| 1009 | { "lc", gen_lc, 0, |
| 1010 | "[-s SEED]" }, |
| 1011 | #define E(PRE, pre) \ |
| 1012 | { #pre "-ofb", gen_ofb, CIPHER_##PRE, \ |
| 1013 | "[-k KEY-PHRASE] [-H HEX-KEY] [-i HEX-IV]" }, |
| 1014 | CIPHERS |
| 1015 | #undef E |
| 1016 | #define E(PRE, pre) \ |
| 1017 | { #pre "-counter", gen_counter, CIPHER_##PRE, \ |
| 1018 | "[-k KEY-PHRASE] [-H HEX-KEY] [-i HEX-IV]" }, |
| 1019 | CIPHERS |
| 1020 | #undef E(PRE, pre) |
| 1021 | #define E(PRE, pre) \ |
| 1022 | { #pre "-mgf", gen_mgf, HASH_##PRE, \ |
| 1023 | "[-k KEY-PHRASE] [-H HEX-KEY] [-i INDEX]" }, |
| 1024 | HASHES |
| 1025 | #undef E(PRE, pre) |
| 1026 | { "rc4", gen_rc4, 0, |
| 1027 | "[-k KEY-PHRASE] [-H HEX-KEY]" }, |
| 1028 | { "seal", gen_seal, 0, |
| 1029 | "[-k KEY-PHRASE] [-H HEX-KEY] [-n SEQ]" }, |
| 1030 | { "rand", gen_rand, 0, |
| 1031 | "[-n] [-k KEY-PHRASE] [-t TEXT-BLOCK] [-H HEX-BLOCK]" }, |
| 1032 | { "bbs", gen_bbs, 0, |
| 1033 | "[-gS] [-s SEED] [-M MODULUS] [-b BITS] [-k KEYRING] [-i TAG] [-t TYPE]" |
| 1034 | }, |
| 1035 | { 0, 0, 0, 0 }, |
| 1036 | }; |
| 1037 | |
| 1038 | static gen optsg = { "options", gen_opts, 0, |
| 1039 | "This message shouldn't be printed." }; |
| 1040 | |
| 1041 | /*----- Main code ---------------------------------------------------------*/ |
| 1042 | |
| 1043 | int main(int ac, char *av[]) |
| 1044 | { |
| 1045 | gen *g = &optsg; |
| 1046 | grand *r; |
| 1047 | unsigned percent = 0; |
| 1048 | size_t kb = 0; |
| 1049 | time_t last; |
| 1050 | static char baton[] = "-\\|/"; |
| 1051 | char *bp; |
| 1052 | |
| 1053 | /* --- Initialize mLib --- */ |
| 1054 | |
| 1055 | ego(av[0]); |
| 1056 | sub_init(); |
| 1057 | |
| 1058 | /* --- Set up the main Catacomb generator --- */ |
| 1059 | |
| 1060 | rand_noisesrc(RAND_GLOBAL, &noise_source); |
| 1061 | rand_seed(RAND_GLOBAL, 160); |
| 1062 | |
| 1063 | /* --- Initialize the options table --- */ |
| 1064 | |
| 1065 | addopts(sopts, opts); |
| 1066 | argc = ac; |
| 1067 | argv = av; |
| 1068 | |
| 1069 | /* --- Read the generator out of the first argument --- */ |
| 1070 | |
| 1071 | if (argc > 1 && *argv[1] != '-') { |
| 1072 | const char *arg = av[1]; |
| 1073 | size_t sz = strlen(arg); |
| 1074 | gen *gg; |
| 1075 | |
| 1076 | g = 0; |
| 1077 | for (gg = generators; gg->name; gg++) { |
| 1078 | if (strncmp(arg, gg->name, sz) == 0) { |
| 1079 | if (gg->name[sz] == 0) { |
| 1080 | g = gg; |
| 1081 | break; |
| 1082 | } else if (g) |
| 1083 | die(EXIT_FAILURE, "ambiguous generator name `%s'", arg); |
| 1084 | else |
| 1085 | g = gg; |
| 1086 | } |
| 1087 | } |
| 1088 | if (!g) |
| 1089 | die(EXIT_FAILURE, "unknown generator name `%s'", arg); |
| 1090 | argc--; |
| 1091 | argv++; |
| 1092 | } |
| 1093 | |
| 1094 | /* --- Get a generic random number generator --- */ |
| 1095 | |
| 1096 | r = g->seed(g->i); |
| 1097 | if (!r || optind != ac - 1) { |
| 1098 | usage(stderr); |
| 1099 | exit(EXIT_FAILURE); |
| 1100 | } |
| 1101 | |
| 1102 | /* --- Do the FIPS test --- */ |
| 1103 | |
| 1104 | if (flags & f_fips) { |
| 1105 | octet buf[FIPSTEST_BUFSZ]; |
| 1106 | unsigned rc; |
| 1107 | |
| 1108 | r->ops->fill(r, buf, sizeof(buf)); |
| 1109 | rc = fipstest(buf); |
| 1110 | if (rc & FIPSTEST_MONOBIT) |
| 1111 | moan("failed monobit test"); |
| 1112 | if (rc & FIPSTEST_POKER) |
| 1113 | moan("failed poker test"); |
| 1114 | if (rc & FIPSTEST_RUNS) |
| 1115 | moan("failed runs test"); |
| 1116 | if (rc & FIPSTEST_LONGRUNS) |
| 1117 | moan("failed long runs test"); |
| 1118 | if (!rc && (flags & f_progress)) |
| 1119 | puts("test passed"); |
| 1120 | return (rc ? EXIT_FAILURE : 0); |
| 1121 | } |
| 1122 | |
| 1123 | /* --- Do Maurer's test --- */ |
| 1124 | |
| 1125 | if (flags & f_maurer) { |
| 1126 | octet buf[250 * 1024]; |
| 1127 | unsigned i; |
| 1128 | unsigned rc = 0; |
| 1129 | unsigned f = 0, jj = 0; |
| 1130 | double maxz = 0; |
| 1131 | |
| 1132 | static struct { double x; const char *sig; } sigtab[] = { |
| 1133 | { 3.2905, "1e-3" }, |
| 1134 | { 3.0902, "2e-3" }, |
| 1135 | { 2.8070, "5e-3" }, |
| 1136 | { 2.5758, "1e-2" }, |
| 1137 | { 0 , 0 } |
| 1138 | }; |
| 1139 | |
| 1140 | r->ops->fill(r, buf, sizeof(buf)); |
| 1141 | for (i = 5; i < 8; i++) { |
| 1142 | double z = maurer(buf, sizeof(buf), i + 1); |
| 1143 | double zz = fabs(z); |
| 1144 | unsigned j; |
| 1145 | |
| 1146 | for (j = 0; sigtab[j].sig; j++) { |
| 1147 | if (zz > sigtab[j].x) { |
| 1148 | if (zz > fabs(maxz)) { |
| 1149 | maxz = z; |
| 1150 | f = i + 1; |
| 1151 | jj = j; |
| 1152 | } |
| 1153 | rc = EXIT_FAILURE; |
| 1154 | moan("failed, bits = %u, sig = %s, Z_u = %g", |
| 1155 | i + 1, sigtab[j].sig, z); |
| 1156 | break; |
| 1157 | } |
| 1158 | } |
| 1159 | if (flags & f_progress) |
| 1160 | printf("bits = %u, Z_u = %g\n", i + 1, z); |
| 1161 | } |
| 1162 | |
| 1163 | return (rc); |
| 1164 | } |
| 1165 | |
| 1166 | /* --- Make sure we don't write to the terminal --- */ |
| 1167 | |
| 1168 | #ifndef PORTABLE |
| 1169 | if (!(flags & f_file) && isatty(STDOUT_FILENO)) |
| 1170 | die(EXIT_FAILURE, "writing output to a terminal is a bad idea"); |
| 1171 | #endif |
| 1172 | |
| 1173 | /* --- Spit out random data --- */ |
| 1174 | |
| 1175 | last = time(0); |
| 1176 | bp = baton; |
| 1177 | if (flags & f_progress) { |
| 1178 | char *errbuf = xmalloc(BUFSIZ); |
| 1179 | setvbuf(stderr, errbuf, _IOLBF, BUFSIZ); |
| 1180 | if (outsz) |
| 1181 | fprintf(stderr, "[%*s] 0%% 0\r[/\b", 50, ""); |
| 1182 | else |
| 1183 | fputs("[ ] 0\r[/\b", stderr); |
| 1184 | fflush(stderr); |
| 1185 | } |
| 1186 | |
| 1187 | #ifdef SIGPIPE |
| 1188 | signal(SIGPIPE, SIG_IGN); |
| 1189 | #endif |
| 1190 | |
| 1191 | for (;;) { |
| 1192 | octet buf[BUFSIZ]; |
| 1193 | size_t sz = sizeof(buf); |
| 1194 | |
| 1195 | /* --- Emit a bufferful (or less) of data --- */ |
| 1196 | |
| 1197 | if (outsz) { |
| 1198 | if (sz > outsz - kb) |
| 1199 | sz = outsz - kb; |
| 1200 | } |
| 1201 | r->ops->fill(r, buf, sz); |
| 1202 | if (fwrite(buf, 1, sz, outfp) != sz) { |
| 1203 | if (flags & f_progress) |
| 1204 | fputc('\n', stderr); |
| 1205 | die(EXIT_FAILURE, "error writing data: %s", strerror(errno)); |
| 1206 | } |
| 1207 | kb += sz; |
| 1208 | |
| 1209 | /* --- Update the display --- */ |
| 1210 | |
| 1211 | if (flags & f_progress) { |
| 1212 | time_t t = time(0); |
| 1213 | unsigned up = 0; |
| 1214 | |
| 1215 | if (percent > 100) |
| 1216 | up = 1; |
| 1217 | |
| 1218 | if (!outsz) { |
| 1219 | if (difftime(t, last) > 1.0) { |
| 1220 | up = 1; |
| 1221 | } |
| 1222 | if (up) |
| 1223 | fputs(" ] ", stderr); |
| 1224 | } else { |
| 1225 | unsigned pc = kb * 100.0 / outsz; |
| 1226 | if (pc > percent || percent > 100 || difftime(t, last) > 1.0) { |
| 1227 | if (percent > 100) |
| 1228 | percent = 0; |
| 1229 | percent &= ~1; |
| 1230 | for (; percent < (pc & ~1); percent += 2) |
| 1231 | putc('.', stderr); |
| 1232 | percent = pc; |
| 1233 | for (; pc < 100; pc += 2) |
| 1234 | putc(' ', stderr); |
| 1235 | fprintf(stderr, "] %3i%% ", percent); |
| 1236 | up = 1; |
| 1237 | } |
| 1238 | } |
| 1239 | |
| 1240 | if (up) { |
| 1241 | size_t q = kb; |
| 1242 | char *suff = " KMG"; |
| 1243 | while (q > 8192 && suff[1]) { |
| 1244 | q >>= 10; |
| 1245 | suff++; |
| 1246 | } |
| 1247 | fprintf(stderr, "%4i%c\r[", q, *suff); |
| 1248 | if (outsz) { |
| 1249 | unsigned pc; |
| 1250 | for (pc = 0; pc < (percent & ~1); pc += 2) |
| 1251 | putc('.', stderr); |
| 1252 | } |
| 1253 | last = t; |
| 1254 | } |
| 1255 | |
| 1256 | if (percent > 100) |
| 1257 | percent = 0; |
| 1258 | |
| 1259 | if (percent < 100) { |
| 1260 | putc(*bp++, stderr); |
| 1261 | putc('\b', stderr); |
| 1262 | if (!*bp) |
| 1263 | bp = baton; |
| 1264 | } |
| 1265 | fflush(stderr); |
| 1266 | } |
| 1267 | |
| 1268 | /* --- Terminate the loop --- */ |
| 1269 | |
| 1270 | if (outsz && kb >= outsz) |
| 1271 | break; |
| 1272 | } |
| 1273 | |
| 1274 | /* --- Done --- */ |
| 1275 | |
| 1276 | r->ops->destroy(r); |
| 1277 | if (flags & f_progress) |
| 1278 | fputc('\n', stderr); |
| 1279 | return (0); |
| 1280 | } |
| 1281 | |
| 1282 | /*----- That's all, folks -------------------------------------------------*/ |