1 /* $OpenBSD: obj_dat.c,v 1.59 2023/08/17 09:27:43 tb Exp $ */ 2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58 59 #include <ctype.h> 60 #include <limits.h> 61 #include <stdio.h> 62 #include <string.h> 63 64 #include <openssl/opensslconf.h> 65 66 #include <openssl/asn1.h> 67 #include <openssl/bn.h> 68 #include <openssl/err.h> 69 #include <openssl/lhash.h> 70 #include <openssl/objects.h> 71 72 #include "asn1_local.h" 73 74 /* obj_dat.h is generated from objects.h by obj_dat.pl */ 75 #include "obj_dat.h" 76 77 static int sn_cmp_BSEARCH_CMP_FN(const void *, const void *); 78 static int sn_cmp(const ASN1_OBJECT * const *, unsigned int const *); 79 static unsigned int *OBJ_bsearch_sn(const ASN1_OBJECT * *key, unsigned int const *base, int num); 80 static int ln_cmp_BSEARCH_CMP_FN(const void *, const void *); 81 static int ln_cmp(const ASN1_OBJECT * const *, unsigned int const *); 82 static unsigned int *OBJ_bsearch_ln(const ASN1_OBJECT * *key, unsigned int const *base, int num); 83 static int obj_cmp_BSEARCH_CMP_FN(const void *, const void *); 84 static int obj_cmp(const ASN1_OBJECT * const *, unsigned int const *); 85 static unsigned int *OBJ_bsearch_obj(const ASN1_OBJECT * *key, unsigned int const *base, int num); 86 87 #define ADDED_DATA 0 88 #define ADDED_SNAME 1 89 #define ADDED_LNAME 2 90 #define ADDED_NID 3 91 92 typedef struct added_obj_st { 93 int type; 94 ASN1_OBJECT *obj; 95 } ADDED_OBJ; 96 DECLARE_LHASH_OF(ADDED_OBJ); 97 98 static int new_nid = NUM_NID; 99 static LHASH_OF(ADDED_OBJ) *added = NULL; 100 101 static int sn_cmp(const ASN1_OBJECT * const *a, const unsigned int *b) 102 { 103 return (strcmp((*a)->sn, nid_objs[*b].sn)); 104 } 105 106 107 static int 108 sn_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_) 109 { 110 const ASN1_OBJECT * const *a = a_; 111 unsigned int const *b = b_; 112 return sn_cmp(a, b); 113 } 114 115 static unsigned int * 116 OBJ_bsearch_sn(const ASN1_OBJECT * *key, unsigned int const *base, int num) 117 { 118 return (unsigned int *)OBJ_bsearch_(key, base, num, sizeof(unsigned int), 119 sn_cmp_BSEARCH_CMP_FN); 120 } 121 122 static int ln_cmp(const ASN1_OBJECT * const *a, const unsigned int *b) 123 { 124 return (strcmp((*a)->ln, nid_objs[*b].ln)); 125 } 126 127 128 static int 129 ln_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_) 130 { 131 const ASN1_OBJECT * const *a = a_; 132 unsigned int const *b = b_; 133 return ln_cmp(a, b); 134 } 135 136 static unsigned int * 137 OBJ_bsearch_ln(const ASN1_OBJECT * *key, unsigned int const *base, int num) 138 { 139 return (unsigned int *)OBJ_bsearch_(key, base, num, sizeof(unsigned int), 140 ln_cmp_BSEARCH_CMP_FN); 141 } 142 143 static unsigned long 144 added_obj_hash(const ADDED_OBJ *ca) 145 { 146 const ASN1_OBJECT *a; 147 int i; 148 unsigned long ret = 0; 149 unsigned char *p; 150 151 a = ca->obj; 152 switch (ca->type) { 153 case ADDED_DATA: 154 ret = a->length << 20L; 155 p = (unsigned char *)a->data; 156 for (i = 0; i < a->length; i++) 157 ret ^= p[i] << ((i * 3) % 24); 158 break; 159 case ADDED_SNAME: 160 ret = lh_strhash(a->sn); 161 break; 162 case ADDED_LNAME: 163 ret = lh_strhash(a->ln); 164 break; 165 case ADDED_NID: 166 ret = a->nid; 167 break; 168 default: 169 /* abort(); */ 170 return 0; 171 } 172 ret &= 0x3fffffffL; 173 ret |= ca->type << 30L; 174 return (ret); 175 } 176 static IMPLEMENT_LHASH_HASH_FN(added_obj, ADDED_OBJ) 177 178 static int 179 added_obj_cmp(const ADDED_OBJ *ca, const ADDED_OBJ *cb) 180 { 181 const ASN1_OBJECT *a, *b; 182 int cmp; 183 184 if ((cmp = ca->type - cb->type) != 0) 185 return cmp; 186 187 a = ca->obj; 188 b = cb->obj; 189 switch (ca->type) { 190 case ADDED_DATA: 191 return OBJ_cmp(a, b); 192 case ADDED_SNAME: 193 if (a->sn == NULL) 194 return -1; 195 if (b->sn == NULL) 196 return 1; 197 return strcmp(a->sn, b->sn); 198 case ADDED_LNAME: 199 if (a->ln == NULL) 200 return -1; 201 if (b->ln == NULL) 202 return 1; 203 return strcmp(a->ln, b->ln); 204 case ADDED_NID: 205 return a->nid - b->nid; 206 default: 207 /* abort(); */ 208 return 0; 209 } 210 } 211 static IMPLEMENT_LHASH_COMP_FN(added_obj, ADDED_OBJ) 212 213 static int 214 init_added(void) 215 { 216 if (added != NULL) 217 return (1); 218 added = lh_ADDED_OBJ_new(); 219 return (added != NULL); 220 } 221 222 static void 223 cleanup1_doall(ADDED_OBJ *a) 224 { 225 a->obj->nid = 0; 226 a->obj->flags |= ASN1_OBJECT_FLAG_DYNAMIC | 227 ASN1_OBJECT_FLAG_DYNAMIC_STRINGS | 228 ASN1_OBJECT_FLAG_DYNAMIC_DATA; 229 } 230 231 static void cleanup2_doall(ADDED_OBJ *a) 232 { 233 a->obj->nid++; 234 } 235 236 static void 237 cleanup3_doall(ADDED_OBJ *a) 238 { 239 if (--a->obj->nid == 0) 240 ASN1_OBJECT_free(a->obj); 241 free(a); 242 } 243 244 static IMPLEMENT_LHASH_DOALL_FN(cleanup1, ADDED_OBJ) 245 static IMPLEMENT_LHASH_DOALL_FN(cleanup2, ADDED_OBJ) 246 static IMPLEMENT_LHASH_DOALL_FN(cleanup3, ADDED_OBJ) 247 248 /* The purpose of obj_cleanup_defer is to avoid EVP_cleanup() attempting 249 * to use freed up OIDs. If necessary the actual freeing up of OIDs is 250 * delayed. 251 */ 252 253 int obj_cleanup_defer = 0; 254 255 void 256 check_defer(int nid) 257 { 258 if (!obj_cleanup_defer && nid >= NUM_NID) 259 obj_cleanup_defer = 1; 260 } 261 262 void 263 OBJ_cleanup(void) 264 { 265 if (obj_cleanup_defer) { 266 obj_cleanup_defer = 2; 267 return; 268 } 269 if (added == NULL) 270 return; 271 lh_ADDED_OBJ_down_load(added) = 0; 272 lh_ADDED_OBJ_doall(added, LHASH_DOALL_FN(cleanup1)); /* zero counters */ 273 lh_ADDED_OBJ_doall(added, LHASH_DOALL_FN(cleanup2)); /* set counters */ 274 lh_ADDED_OBJ_doall(added, LHASH_DOALL_FN(cleanup3)); /* free objects */ 275 lh_ADDED_OBJ_free(added); 276 added = NULL; 277 } 278 LCRYPTO_ALIAS(OBJ_cleanup); 279 280 int 281 OBJ_new_nid(int num) 282 { 283 int i; 284 285 i = new_nid; 286 new_nid += num; 287 return (i); 288 } 289 LCRYPTO_ALIAS(OBJ_new_nid); 290 291 int 292 OBJ_add_object(const ASN1_OBJECT *obj) 293 { 294 ASN1_OBJECT *o; 295 ADDED_OBJ *ao[4] = {NULL, NULL, NULL, NULL}, *aop; 296 int i; 297 298 if (added == NULL) 299 if (!init_added()) 300 return (0); 301 if ((o = OBJ_dup(obj)) == NULL) 302 goto err; 303 if (!(ao[ADDED_NID] = malloc(sizeof(ADDED_OBJ)))) 304 goto err2; 305 if ((o->length != 0) && (obj->data != NULL)) 306 if (!(ao[ADDED_DATA] = malloc(sizeof(ADDED_OBJ)))) 307 goto err2; 308 if (o->sn != NULL) 309 if (!(ao[ADDED_SNAME] = malloc(sizeof(ADDED_OBJ)))) 310 goto err2; 311 if (o->ln != NULL) 312 if (!(ao[ADDED_LNAME] = malloc(sizeof(ADDED_OBJ)))) 313 goto err2; 314 315 for (i = ADDED_DATA; i <= ADDED_NID; i++) { 316 if (ao[i] != NULL) { 317 ao[i]->type = i; 318 ao[i]->obj = o; 319 aop = lh_ADDED_OBJ_insert(added, ao[i]); 320 /* memory leak, but should not normally matter */ 321 free(aop); 322 } 323 } 324 o->flags &= ~(ASN1_OBJECT_FLAG_DYNAMIC | 325 ASN1_OBJECT_FLAG_DYNAMIC_STRINGS | 326 ASN1_OBJECT_FLAG_DYNAMIC_DATA); 327 328 return (o->nid); 329 330 err2: 331 OBJerror(ERR_R_MALLOC_FAILURE); 332 err: 333 for (i = ADDED_DATA; i <= ADDED_NID; i++) 334 free(ao[i]); 335 ASN1_OBJECT_free(o); 336 return (NID_undef); 337 } 338 LCRYPTO_ALIAS(OBJ_add_object); 339 340 ASN1_OBJECT * 341 OBJ_nid2obj(int n) 342 { 343 ADDED_OBJ ad, *adp; 344 ASN1_OBJECT ob; 345 346 if ((n >= 0) && (n < NUM_NID)) { 347 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) { 348 OBJerror(OBJ_R_UNKNOWN_NID); 349 return (NULL); 350 } 351 return ((ASN1_OBJECT *)&(nid_objs[n])); 352 } else if (added == NULL) 353 return (NULL); 354 else { 355 ad.type = ADDED_NID; 356 ad.obj = &ob; 357 ob.nid = n; 358 adp = lh_ADDED_OBJ_retrieve(added, &ad); 359 if (adp != NULL) 360 return (adp->obj); 361 else { 362 OBJerror(OBJ_R_UNKNOWN_NID); 363 return (NULL); 364 } 365 } 366 } 367 LCRYPTO_ALIAS(OBJ_nid2obj); 368 369 const char * 370 OBJ_nid2sn(int n) 371 { 372 ADDED_OBJ ad, *adp; 373 ASN1_OBJECT ob; 374 375 if ((n >= 0) && (n < NUM_NID)) { 376 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) { 377 OBJerror(OBJ_R_UNKNOWN_NID); 378 return (NULL); 379 } 380 return (nid_objs[n].sn); 381 } else if (added == NULL) 382 return (NULL); 383 else { 384 ad.type = ADDED_NID; 385 ad.obj = &ob; 386 ob.nid = n; 387 adp = lh_ADDED_OBJ_retrieve(added, &ad); 388 if (adp != NULL) 389 return (adp->obj->sn); 390 else { 391 OBJerror(OBJ_R_UNKNOWN_NID); 392 return (NULL); 393 } 394 } 395 } 396 LCRYPTO_ALIAS(OBJ_nid2sn); 397 398 const char * 399 OBJ_nid2ln(int n) 400 { 401 ADDED_OBJ ad, *adp; 402 ASN1_OBJECT ob; 403 404 if ((n >= 0) && (n < NUM_NID)) { 405 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) { 406 OBJerror(OBJ_R_UNKNOWN_NID); 407 return (NULL); 408 } 409 return (nid_objs[n].ln); 410 } else if (added == NULL) 411 return (NULL); 412 else { 413 ad.type = ADDED_NID; 414 ad.obj = &ob; 415 ob.nid = n; 416 adp = lh_ADDED_OBJ_retrieve(added, &ad); 417 if (adp != NULL) 418 return (adp->obj->ln); 419 else { 420 OBJerror(OBJ_R_UNKNOWN_NID); 421 return (NULL); 422 } 423 } 424 } 425 LCRYPTO_ALIAS(OBJ_nid2ln); 426 427 static int 428 obj_cmp(const ASN1_OBJECT * const *ap, const unsigned int *bp) 429 { 430 const ASN1_OBJECT *a = *ap; 431 const ASN1_OBJECT *b = &nid_objs[*bp]; 432 433 return OBJ_cmp(a, b); 434 } 435 436 static int 437 obj_cmp_BSEARCH_CMP_FN(const void *a_, const void *b_) 438 { 439 const ASN1_OBJECT * const *a = a_; 440 unsigned int const *b = b_; 441 return obj_cmp(a, b); 442 } 443 444 static unsigned int * 445 OBJ_bsearch_obj(const ASN1_OBJECT * *key, unsigned int const *base, int num) 446 { 447 return (unsigned int *)OBJ_bsearch_(key, base, num, sizeof(unsigned int), 448 obj_cmp_BSEARCH_CMP_FN); 449 } 450 451 int 452 OBJ_obj2nid(const ASN1_OBJECT *a) 453 { 454 const unsigned int *op; 455 ADDED_OBJ ad, *adp; 456 457 if (a == NULL || a->length == 0) 458 return (NID_undef); 459 if (a->nid != NID_undef) 460 return (a->nid); 461 462 if (added != NULL) { 463 ad.type = ADDED_DATA; 464 ad.obj=(ASN1_OBJECT *)a; /* XXX: ugly but harmless */ 465 adp = lh_ADDED_OBJ_retrieve(added, &ad); 466 if (adp != NULL) 467 return (adp->obj->nid); 468 } 469 op = OBJ_bsearch_obj(&a, obj_objs, NUM_OBJ); 470 if (op == NULL) 471 return (NID_undef); 472 return (nid_objs[*op].nid); 473 } 474 LCRYPTO_ALIAS(OBJ_obj2nid); 475 476 /* Convert an object name into an ASN1_OBJECT 477 * if "noname" is not set then search for short and long names first. 478 * This will convert the "dotted" form into an object: unlike OBJ_txt2nid 479 * it can be used with any objects, not just registered ones. 480 */ 481 482 ASN1_OBJECT * 483 OBJ_txt2obj(const char *s, int no_name) 484 { 485 int nid; 486 487 if (!no_name) { 488 if (((nid = OBJ_sn2nid(s)) != NID_undef) || 489 ((nid = OBJ_ln2nid(s)) != NID_undef) ) 490 return OBJ_nid2obj(nid); 491 } 492 493 return t2i_ASN1_OBJECT_internal(s); 494 } 495 LCRYPTO_ALIAS(OBJ_txt2obj); 496 497 int 498 OBJ_obj2txt(char *buf, int buf_len, const ASN1_OBJECT *aobj, int no_name) 499 { 500 return i2t_ASN1_OBJECT_internal(aobj, buf, buf_len, no_name); 501 } 502 LCRYPTO_ALIAS(OBJ_obj2txt); 503 504 int 505 OBJ_txt2nid(const char *s) 506 { 507 ASN1_OBJECT *obj; 508 int nid; 509 510 obj = OBJ_txt2obj(s, 0); 511 nid = OBJ_obj2nid(obj); 512 ASN1_OBJECT_free(obj); 513 return nid; 514 } 515 LCRYPTO_ALIAS(OBJ_txt2nid); 516 517 int 518 OBJ_ln2nid(const char *s) 519 { 520 ASN1_OBJECT o; 521 const ASN1_OBJECT *oo = &o; 522 ADDED_OBJ ad, *adp; 523 const unsigned int *op; 524 525 o.ln = s; 526 if (added != NULL) { 527 ad.type = ADDED_LNAME; 528 ad.obj = &o; 529 adp = lh_ADDED_OBJ_retrieve(added, &ad); 530 if (adp != NULL) 531 return (adp->obj->nid); 532 } 533 op = OBJ_bsearch_ln(&oo, ln_objs, NUM_LN); 534 if (op == NULL) 535 return (NID_undef); 536 return (nid_objs[*op].nid); 537 } 538 LCRYPTO_ALIAS(OBJ_ln2nid); 539 540 int 541 OBJ_sn2nid(const char *s) 542 { 543 ASN1_OBJECT o; 544 const ASN1_OBJECT *oo = &o; 545 ADDED_OBJ ad, *adp; 546 const unsigned int *op; 547 548 o.sn = s; 549 if (added != NULL) { 550 ad.type = ADDED_SNAME; 551 ad.obj = &o; 552 adp = lh_ADDED_OBJ_retrieve(added, &ad); 553 if (adp != NULL) 554 return (adp->obj->nid); 555 } 556 op = OBJ_bsearch_sn(&oo, sn_objs, NUM_SN); 557 if (op == NULL) 558 return (NID_undef); 559 return (nid_objs[*op].nid); 560 } 561 LCRYPTO_ALIAS(OBJ_sn2nid); 562 563 const void * 564 OBJ_bsearch_(const void *key, const void *base, int num, int size, 565 int (*cmp)(const void *, const void *)) 566 { 567 return OBJ_bsearch_ex_(key, base, num, size, cmp, 0); 568 } 569 LCRYPTO_ALIAS(OBJ_bsearch_); 570 571 const void * 572 OBJ_bsearch_ex_(const void *key, const void *base_, int num, int size, 573 int (*cmp)(const void *, const void *), int flags) 574 { 575 const char *base = base_; 576 int l, h, i = 0, c = 0; 577 const char *p = NULL; 578 579 if (num == 0) 580 return (NULL); 581 l = 0; 582 h = num; 583 while (l < h) { 584 i = (l + h) / 2; 585 p = &(base[i * size]); 586 c = (*cmp)(key, p); 587 if (c < 0) 588 h = i; 589 else if (c > 0) 590 l = i + 1; 591 else 592 break; 593 } 594 if (c != 0 && !(flags & OBJ_BSEARCH_VALUE_ON_NOMATCH)) 595 p = NULL; 596 else if (c == 0 && (flags & OBJ_BSEARCH_FIRST_VALUE_ON_MATCH)) { 597 while (i > 0 && (*cmp)(key, &(base[(i - 1) * size])) == 0) 598 i--; 599 p = &(base[i * size]); 600 } 601 return (p); 602 } 603 604 int 605 OBJ_create_objects(BIO *in) 606 { 607 char buf[512]; 608 int i, num = 0; 609 char *o, *s, *l = NULL; 610 611 for (;;) { 612 s = o = NULL; 613 i = BIO_gets(in, buf, 512); 614 if (i <= 0) 615 return (num); 616 buf[i - 1] = '\0'; 617 if (!isalnum((unsigned char)buf[0])) 618 return (num); 619 o = s=buf; 620 while (isdigit((unsigned char)*s) || (*s == '.')) 621 s++; 622 if (*s != '\0') { 623 *(s++) = '\0'; 624 while (isspace((unsigned char)*s)) 625 s++; 626 if (*s == '\0') 627 s = NULL; 628 else { 629 l = s; 630 while ((*l != '\0') && 631 !isspace((unsigned char)*l)) 632 l++; 633 if (*l != '\0') { 634 *(l++) = '\0'; 635 while (isspace((unsigned char)*l)) 636 l++; 637 if (*l == '\0') 638 l = NULL; 639 } else 640 l = NULL; 641 } 642 } else 643 s = NULL; 644 if ((o == NULL) || (*o == '\0')) 645 return (num); 646 if (!OBJ_create(o, s, l)) 647 return (num); 648 num++; 649 } 650 /* return(num); */ 651 } 652 LCRYPTO_ALIAS(OBJ_create_objects); 653 654 int 655 OBJ_create(const char *oid, const char *sn, const char *ln) 656 { 657 int ok = 0; 658 ASN1_OBJECT *op = NULL; 659 unsigned char *buf; 660 int i; 661 662 i = a2d_ASN1_OBJECT(NULL, 0, oid, -1); 663 if (i <= 0) 664 return (0); 665 666 if ((buf = malloc(i)) == NULL) { 667 OBJerror(ERR_R_MALLOC_FAILURE); 668 return (0); 669 } 670 i = a2d_ASN1_OBJECT(buf, i, oid, -1); 671 if (i == 0) 672 goto err; 673 op = (ASN1_OBJECT *)ASN1_OBJECT_create(OBJ_new_nid(1), buf, i, sn, ln); 674 if (op == NULL) 675 goto err; 676 ok = OBJ_add_object(op); 677 678 err: 679 ASN1_OBJECT_free(op); 680 free(buf); 681 return (ok); 682 } 683 LCRYPTO_ALIAS(OBJ_create); 684 685 size_t 686 OBJ_length(const ASN1_OBJECT *obj) 687 { 688 if (obj == NULL) 689 return 0; 690 691 if (obj->length < 0) 692 return 0; 693 694 return obj->length; 695 } 696 LCRYPTO_ALIAS(OBJ_length); 697 698 const unsigned char * 699 OBJ_get0_data(const ASN1_OBJECT *obj) 700 { 701 if (obj == NULL) 702 return NULL; 703 704 return obj->data; 705 } 706 LCRYPTO_ALIAS(OBJ_get0_data); 707