crypto/objects/obj_dat.c

   1 /* crypto/objects/obj_dat.c */
   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 <stdio.h>
  60 #include <ctype.h>
  61 #include <limits.h>
  62 #include "internal/cryptlib.h"
  63 #include <openssl/lhash.h>
  64 #include <openssl/asn1.h>
  65 #include <openssl/objects.h>
  66 #include <openssl/bn.h>
  67 #include "internal/asn1_int.h"
  68
  69 /* obj_dat.h is generated from objects.h by obj_dat.pl */
  70 #include "obj_dat.h"
  71
  72 DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, sn);
  73 DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, ln);
  74 DECLARE_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, obj);
  75
  76 #define ADDED_DATA      0
  77 #define ADDED_SNAME     1
  78 #define ADDED_LNAME     2
  79 #define ADDED_NID       3
  80
  81 typedef struct added_obj_st {
  82     int type;
  83     ASN1_OBJECT *obj;
  84 } ADDED_OBJ;
  85 DECLARE_LHASH_OF(ADDED_OBJ);
  86
  87 static int new_nid = NUM_NID;
  88 static LHASH_OF(ADDED_OBJ) *added = NULL;
  89
  90 static int sn_cmp(const ASN1_OBJECT *const *a, const unsigned int *b)
  91 {
  92     return (strcmp((*a)->sn, nid_objs[*b].sn));
  93 }
  94
  95 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, sn);
  96
  97 static int ln_cmp(const ASN1_OBJECT *const *a, const unsigned int *b)
  98 {
  99     return (strcmp((*a)->ln, nid_objs[*b].ln));
 100 }
 101
 102 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, ln);
 103
 104 static unsigned long added_obj_hash(const ADDED_OBJ *ca)
 105 {
 106     const ASN1_OBJECT *a;
 107     int i;
 108     unsigned long ret = 0;
 109     unsigned char *p;
 110
 111     a = ca->obj;
 112     switch (ca->type) {
 113     case ADDED_DATA:
 114         ret = a->length << 20L;
 115         p = (unsigned char *)a->data;
 116         for (i = 0; i < a->length; i++)
 117             ret ^= p[i] << ((i * 3) % 24);
 118         break;
 119     case ADDED_SNAME:
 120         ret = lh_strhash(a->sn);
 121         break;
 122     case ADDED_LNAME:
 123         ret = lh_strhash(a->ln);
 124         break;
 125     case ADDED_NID:
 126         ret = a->nid;
 127         break;
 128     default:
 129         /* abort(); */
 130         return 0;
 131     }
 132     ret &= 0x3fffffffL;
 133     ret |= ((unsigned long)ca->type) << 30L;
 134     return (ret);
 135 }
 136
 137 static IMPLEMENT_LHASH_HASH_FN(added_obj, ADDED_OBJ)
 138
 139 static int added_obj_cmp(const ADDED_OBJ *ca, const ADDED_OBJ *cb)
 140 {
 141     ASN1_OBJECT *a, *b;
 142     int i;
 143
 144     i = ca->type - cb->type;
 145     if (i)
 146         return (i);
 147     a = ca->obj;
 148     b = cb->obj;
 149     switch (ca->type) {
 150     case ADDED_DATA:
 151         i = (a->length - b->length);
 152         if (i)
 153             return (i);
 154         return (memcmp(a->data, b->data, (size_t)a->length));
 155     case ADDED_SNAME:
 156         if (a->sn == NULL)
 157             return (-1);
 158         else if (b->sn == NULL)
 159             return (1);
 160         else
 161             return (strcmp(a->sn, b->sn));
 162     case ADDED_LNAME:
 163         if (a->ln == NULL)
 164             return (-1);
 165         else if (b->ln == NULL)
 166             return (1);
 167         else
 168             return (strcmp(a->ln, b->ln));
 169     case ADDED_NID:
 170         return (a->nid - b->nid);
 171     default:
 172         /* abort(); */
 173         return 0;
 174     }
 175 }
 176
 177 static IMPLEMENT_LHASH_COMP_FN(added_obj, ADDED_OBJ)
 178
 179 static int init_added(void)
 180 {
 181     if (added != NULL)
 182         return (1);
 183     added = lh_ADDED_OBJ_new();
 184     return (added != NULL);
 185 }
 186
 187 static void cleanup1_doall(ADDED_OBJ *a)
 188 {
 189     a->obj->nid = 0;
 190     a->obj->flags |= ASN1_OBJECT_FLAG_DYNAMIC |
 191         ASN1_OBJECT_FLAG_DYNAMIC_STRINGS | ASN1_OBJECT_FLAG_DYNAMIC_DATA;
 192 }
 193
 194 static void cleanup2_doall(ADDED_OBJ *a)
 195 {
 196     a->obj->nid++;
 197 }
 198
 199 static void cleanup3_doall(ADDED_OBJ *a)
 200 {
 201     if (--a->obj->nid == 0)
 202         ASN1_OBJECT_free(a->obj);
 203     OPENSSL_free(a);
 204 }
 205
 206 static IMPLEMENT_LHASH_DOALL_FN(cleanup1, ADDED_OBJ)
 207 static IMPLEMENT_LHASH_DOALL_FN(cleanup2, ADDED_OBJ)
 208 static IMPLEMENT_LHASH_DOALL_FN(cleanup3, ADDED_OBJ)
 209
 210 /*
 211  * The purpose of obj_cleanup_defer is to avoid EVP_cleanup() attempting to
 212  * use freed up OIDs. If necessary the actual freeing up of OIDs is delayed.
 213  */
 214 int obj_cleanup_defer = 0;
 215
 216 void check_defer(int nid)
 217 {
 218     if (!obj_cleanup_defer && nid >= NUM_NID)
 219         obj_cleanup_defer = 1;
 220 }
 221
 222 void OBJ_cleanup(void)
 223 {
 224     if (obj_cleanup_defer) {
 225         obj_cleanup_defer = 2;
 226         return;
 227     }
 228     if (added == NULL)
 229         return;
 230     lh_ADDED_OBJ_down_load(added) = 0;
 231     lh_ADDED_OBJ_doall(added, LHASH_DOALL_FN(cleanup1)); /* zero counters */
 232     lh_ADDED_OBJ_doall(added, LHASH_DOALL_FN(cleanup2)); /* set counters */
 233     lh_ADDED_OBJ_doall(added, LHASH_DOALL_FN(cleanup3)); /* free objects */
 234     lh_ADDED_OBJ_free(added);
 235     added = NULL;
 236 }
 237
 238 int OBJ_new_nid(int num)
 239 {
 240     int i;
 241
 242     i = new_nid;
 243     new_nid += num;
 244     return (i);
 245 }
 246
 247 int OBJ_add_object(const ASN1_OBJECT *obj)
 248 {
 249     ASN1_OBJECT *o;
 250     ADDED_OBJ *ao[4] = { NULL, NULL, NULL, NULL }, *aop;
 251     int i;
 252
 253     if (added == NULL)
 254         if (!init_added())
 255             return (0);
 256     if ((o = OBJ_dup(obj)) == NULL)
 257         goto err;
 258     if ((ao[ADDED_NID] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
 259         goto err2;
 260     if ((o->length != 0) && (obj->data != NULL))
 261         if ((ao[ADDED_DATA] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
 262             goto err2;
 263     if (o->sn != NULL)
 264         if ((ao[ADDED_SNAME] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
 265             goto err2;
 266     if (o->ln != NULL)
 267         if ((ao[ADDED_LNAME] = OPENSSL_malloc(sizeof(*ao[0]))) == NULL)
 268             goto err2;
 269
 270     for (i = ADDED_DATA; i <= ADDED_NID; i++) {
 271         if (ao[i] != NULL) {
 272             ao[i]->type = i;
 273             ao[i]->obj = o;
 274             aop = lh_ADDED_OBJ_insert(added, ao[i]);
 275             /* memory leak, buit should not normally matter */
 276             OPENSSL_free(aop);
 277         }
 278     }
 279     o->flags &=
 280         ~(ASN1_OBJECT_FLAG_DYNAMIC | ASN1_OBJECT_FLAG_DYNAMIC_STRINGS |
 281           ASN1_OBJECT_FLAG_DYNAMIC_DATA);
 282
 283     return (o->nid);
 284  err2:
 285     OBJerr(OBJ_F_OBJ_ADD_OBJECT, ERR_R_MALLOC_FAILURE);
 286  err:
 287     for (i = ADDED_DATA; i <= ADDED_NID; i++)
 288         OPENSSL_free(ao[i]);
 289     OPENSSL_free(o);
 290     return (NID_undef);
 291 }
 292
 293 ASN1_OBJECT *OBJ_nid2obj(int n)
 294 {
 295     ADDED_OBJ ad, *adp;
 296     ASN1_OBJECT ob;
 297
 298     if ((n >= 0) && (n < NUM_NID)) {
 299         if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
 300             OBJerr(OBJ_F_OBJ_NID2OBJ, OBJ_R_UNKNOWN_NID);
 301             return (NULL);
 302         }
 303         return ((ASN1_OBJECT *)&(nid_objs[n]));
 304     } else if (added == NULL)
 305         return (NULL);
 306     else {
 307         ad.type = ADDED_NID;
 308         ad.obj = &ob;
 309         ob.nid = n;
 310         adp = lh_ADDED_OBJ_retrieve(added, &ad);
 311         if (adp != NULL)
 312             return (adp->obj);
 313         else {
 314             OBJerr(OBJ_F_OBJ_NID2OBJ, OBJ_R_UNKNOWN_NID);
 315             return (NULL);
 316         }
 317     }
 318 }
 319
 320 const char *OBJ_nid2sn(int n)
 321 {
 322     ADDED_OBJ ad, *adp;
 323     ASN1_OBJECT ob;
 324
 325     if ((n >= 0) && (n < NUM_NID)) {
 326         if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
 327             OBJerr(OBJ_F_OBJ_NID2SN, OBJ_R_UNKNOWN_NID);
 328             return (NULL);
 329         }
 330         return (nid_objs[n].sn);
 331     } else if (added == NULL)
 332         return (NULL);
 333     else {
 334         ad.type = ADDED_NID;
 335         ad.obj = &ob;
 336         ob.nid = n;
 337         adp = lh_ADDED_OBJ_retrieve(added, &ad);
 338         if (adp != NULL)
 339             return (adp->obj->sn);
 340         else {
 341             OBJerr(OBJ_F_OBJ_NID2SN, OBJ_R_UNKNOWN_NID);
 342             return (NULL);
 343         }
 344     }
 345 }
 346
 347 const char *OBJ_nid2ln(int n)
 348 {
 349     ADDED_OBJ ad, *adp;
 350     ASN1_OBJECT ob;
 351
 352     if ((n >= 0) && (n < NUM_NID)) {
 353         if ((n != NID_undef) && (nid_objs[n].nid == NID_undef)) {
 354             OBJerr(OBJ_F_OBJ_NID2LN, OBJ_R_UNKNOWN_NID);
 355             return (NULL);
 356         }
 357         return (nid_objs[n].ln);
 358     } else if (added == NULL)
 359         return (NULL);
 360     else {
 361         ad.type = ADDED_NID;
 362         ad.obj = &ob;
 363         ob.nid = n;
 364         adp = lh_ADDED_OBJ_retrieve(added, &ad);
 365         if (adp != NULL)
 366             return (adp->obj->ln);
 367         else {
 368             OBJerr(OBJ_F_OBJ_NID2LN, OBJ_R_UNKNOWN_NID);
 369             return (NULL);
 370         }
 371     }
 372 }
 373
 374 static int obj_cmp(const ASN1_OBJECT *const *ap, const unsigned int *bp)
 375 {
 376     int j;
 377     const ASN1_OBJECT *a = *ap;
 378     const ASN1_OBJECT *b = &nid_objs[*bp];
 379
 380     j = (a->length - b->length);
 381     if (j)
 382         return (j);
 383     if (a->length == 0)
 384         return 0;
 385     return (memcmp(a->data, b->data, a->length));
 386 }
 387
 388 IMPLEMENT_OBJ_BSEARCH_CMP_FN(const ASN1_OBJECT *, unsigned int, obj);
 389
 390 int OBJ_obj2nid(const ASN1_OBJECT *a)
 391 {
 392     const unsigned int *op;
 393     ADDED_OBJ ad, *adp;
 394
 395     if (a == NULL)
 396         return (NID_undef);
 397     if (a->nid != 0)
 398         return (a->nid);
 399
 400     if (added != NULL) {
 401         ad.type = ADDED_DATA;
 402         ad.obj = (ASN1_OBJECT *)a; /* XXX: ugly but harmless */
 403         adp = lh_ADDED_OBJ_retrieve(added, &ad);
 404         if (adp != NULL)
 405             return (adp->obj->nid);
 406     }
 407     op = OBJ_bsearch_obj(&a, obj_objs, NUM_OBJ);
 408     if (op == NULL)
 409         return (NID_undef);
 410     return (nid_objs[*op].nid);
 411 }
 412
 413 /*
 414  * Convert an object name into an ASN1_OBJECT if "noname" is not set then
 415  * search for short and long names first. This will convert the "dotted" form
 416  * into an object: unlike OBJ_txt2nid it can be used with any objects, not
 417  * just registered ones.
 418  */
 419
 420 ASN1_OBJECT *OBJ_txt2obj(const char *s, int no_name)
 421 {
 422     int nid = NID_undef;
 423     ASN1_OBJECT *op = NULL;
 424     unsigned char *buf;
 425     unsigned char *p;
 426     const unsigned char *cp;
 427     int i, j;
 428
 429     if (!no_name) {
 430         if (((nid = OBJ_sn2nid(s)) != NID_undef) ||
 431             ((nid = OBJ_ln2nid(s)) != NID_undef))
 432             return OBJ_nid2obj(nid);
 433     }
 434
 435     /* Work out size of content octets */
 436     i = a2d_ASN1_OBJECT(NULL, 0, s, -1);
 437     if (i <= 0) {
 438         /* Don't clear the error */
 439         /*
 440          * ERR_clear_error();
 441          */
 442         return NULL;
 443     }
 444     /* Work out total size */
 445     j = ASN1_object_size(0, i, V_ASN1_OBJECT);
 446
 447     if ((buf = OPENSSL_malloc(j)) == NULL)
 448         return NULL;
 449
 450     p = buf;
 451     /* Write out tag+length */
 452     ASN1_put_object(&p, 0, i, V_ASN1_OBJECT, V_ASN1_UNIVERSAL);
 453     /* Write out contents */
 454     a2d_ASN1_OBJECT(p, i, s, -1);
 455
 456     cp = buf;
 457     op = d2i_ASN1_OBJECT(NULL, &cp, j);
 458     OPENSSL_free(buf);
 459     return op;
 460 }
 461
 462 int OBJ_obj2txt(char *buf, int buf_len, const ASN1_OBJECT *a, int no_name)
 463 {
 464     int i, n = 0, len, nid, first, use_bn;
 465     BIGNUM *bl;
 466     unsigned long l;
 467     const unsigned char *p;
 468     char tbuf[DECIMAL_SIZE(i) + DECIMAL_SIZE(l) + 2];
 469
 470     /* Ensure that, at every state, |buf| is NUL-terminated. */
 471     if (buf && buf_len > 0)
 472         buf[0] = '\0';
 473
 474     if ((a == NULL) || (a->data == NULL))
 475         return (0);
 476
 477     if (!no_name && (nid = OBJ_obj2nid(a)) != NID_undef) {
 478         const char *s;
 479         s = OBJ_nid2ln(nid);
 480         if (s == NULL)
 481             s = OBJ_nid2sn(nid);
 482         if (s) {
 483             if (buf)
 484                 BUF_strlcpy(buf, s, buf_len);
 485             n = strlen(s);
 486             return n;
 487         }
 488     }
 489
 490     len = a->length;
 491     p = a->data;
 492
 493     first = 1;
 494     bl = NULL;
 495
 496     while (len > 0) {
 497         l = 0;
 498         use_bn = 0;
 499         for (;;) {
 500             unsigned char c = *p++;
 501             len--;
 502             if ((len == 0) && (c & 0x80))
 503                 goto err;
 504             if (use_bn) {
 505                 if (!BN_add_word(bl, c & 0x7f))
 506                     goto err;
 507             } else
 508                 l |= c & 0x7f;
 509             if (!(c & 0x80))
 510                 break;
 511             if (!use_bn && (l > (ULONG_MAX >> 7L))) {
 512                 if (bl == NULL && (bl = BN_new()) == NULL)
 513                     goto err;
 514                 if (!BN_set_word(bl, l))
 515                     goto err;
 516                 use_bn = 1;
 517             }
 518             if (use_bn) {
 519                 if (!BN_lshift(bl, bl, 7))
 520                     goto err;
 521             } else
 522                 l <<= 7L;
 523         }
 524
 525         if (first) {
 526             first = 0;
 527             if (l >= 80) {
 528                 i = 2;
 529                 if (use_bn) {
 530                     if (!BN_sub_word(bl, 80))
 531                         goto err;
 532                 } else
 533                     l -= 80;
 534             } else {
 535                 i = (int)(l / 40);
 536                 l -= (long)(i * 40);
 537             }
 538             if (buf && (buf_len > 1)) {
 539                 *buf++ = i + '0';
 540                 *buf = '\0';
 541                 buf_len--;
 542             }
 543             n++;
 544         }
 545
 546         if (use_bn) {
 547             char *bndec;
 548             bndec = BN_bn2dec(bl);
 549             if (!bndec)
 550                 goto err;
 551             i = strlen(bndec);
 552             if (buf) {
 553                 if (buf_len > 1) {
 554                     *buf++ = '.';
 555                     *buf = '\0';
 556                     buf_len--;
 557                 }
 558                 BUF_strlcpy(buf, bndec, buf_len);
 559                 if (i > buf_len) {
 560                     buf += buf_len;
 561                     buf_len = 0;
 562                 } else {
 563                     buf += i;
 564                     buf_len -= i;
 565                 }
 566             }
 567             n++;
 568             n += i;
 569             OPENSSL_free(bndec);
 570         } else {
 571             BIO_snprintf(tbuf, sizeof tbuf, ".%lu", l);
 572             i = strlen(tbuf);
 573             if (buf && (buf_len > 0)) {
 574                 BUF_strlcpy(buf, tbuf, buf_len);
 575                 if (i > buf_len) {
 576                     buf += buf_len;
 577                     buf_len = 0;
 578                 } else {
 579                     buf += i;
 580                     buf_len -= i;
 581                 }
 582             }
 583             n += i;
 584             l = 0;
 585         }
 586     }
 587
 588     BN_free(bl);
 589     return n;
 590
 591  err:
 592     BN_free(bl);
 593     return -1;
 594 }
 595
 596 int OBJ_txt2nid(const char *s)
 597 {
 598     ASN1_OBJECT *obj;
 599     int nid;
 600     obj = OBJ_txt2obj(s, 0);
 601     nid = OBJ_obj2nid(obj);
 602     ASN1_OBJECT_free(obj);
 603     return nid;
 604 }
 605
 606 int OBJ_ln2nid(const char *s)
 607 {
 608     ASN1_OBJECT o;
 609     const ASN1_OBJECT *oo = &o;
 610     ADDED_OBJ ad, *adp;
 611     const unsigned int *op;
 612
 613     o.ln = s;
 614     if (added != NULL) {
 615         ad.type = ADDED_LNAME;
 616         ad.obj = &o;
 617         adp = lh_ADDED_OBJ_retrieve(added, &ad);
 618         if (adp != NULL)
 619             return (adp->obj->nid);
 620     }
 621     op = OBJ_bsearch_ln(&oo, ln_objs, NUM_LN);
 622     if (op == NULL)
 623         return (NID_undef);
 624     return (nid_objs[*op].nid);
 625 }
 626
 627 int OBJ_sn2nid(const char *s)
 628 {
 629     ASN1_OBJECT o;
 630     const ASN1_OBJECT *oo = &o;
 631     ADDED_OBJ ad, *adp;
 632     const unsigned int *op;
 633
 634     o.sn = s;
 635     if (added != NULL) {
 636         ad.type = ADDED_SNAME;
 637         ad.obj = &o;
 638         adp = lh_ADDED_OBJ_retrieve(added, &ad);
 639         if (adp != NULL)
 640             return (adp->obj->nid);
 641     }
 642     op = OBJ_bsearch_sn(&oo, sn_objs, NUM_SN);
 643     if (op == NULL)
 644         return (NID_undef);
 645     return (nid_objs[*op].nid);
 646 }
 647
 648 const void *OBJ_bsearch_(const void *key, const void *base, int num, int size,
 649                          int (*cmp) (const void *, const void *))
 650 {
 651     return OBJ_bsearch_ex_(key, base, num, size, cmp, 0);
 652 }
 653
 654 const void *OBJ_bsearch_ex_(const void *key, const void *base_, int num,
 655                             int size,
 656                             int (*cmp) (const void *, const void *),
 657                             int flags)
 658 {
 659     const char *base = base_;
 660     int l, h, i = 0, c = 0;
 661     const char *p = NULL;
 662
 663     if (num == 0)
 664         return (NULL);
 665     l = 0;
 666     h = num;
 667     while (l < h) {
 668         i = (l + h) / 2;
 669         p = &(base[i * size]);
 670         c = (*cmp) (key, p);
 671         if (c < 0)
 672             h = i;
 673         else if (c > 0)
 674             l = i + 1;
 675         else
 676             break;
 677     }
 678 #ifdef CHARSET_EBCDIC
 679     /*
 680      * THIS IS A KLUDGE - Because the *_obj is sorted in ASCII order, and I
 681      * don't have perl (yet), we revert to a *LINEAR* search when the object
 682      * wasn't found in the binary search.
 683      */
 684     if (c != 0) {
 685         for (i = 0; i < num; ++i) {
 686             p = &(base[i * size]);
 687             c = (*cmp) (key, p);
 688             if (c == 0 || (c < 0 && (flags & OBJ_BSEARCH_VALUE_ON_NOMATCH)))
 689                 return p;
 690         }
 691     }
 692 #endif
 693     if (c != 0 && !(flags & OBJ_BSEARCH_VALUE_ON_NOMATCH))
 694         p = NULL;
 695     else if (c == 0 && (flags & OBJ_BSEARCH_FIRST_VALUE_ON_MATCH)) {
 696         while (i > 0 && (*cmp) (key, &(base[(i - 1) * size])) == 0)
 697             i--;
 698         p = &(base[i * size]);
 699     }
 700     return (p);
 701 }
 702
 703 int OBJ_create_objects(BIO *in)
 704 {
 705     char buf[512];
 706     int i, num = 0;
 707     char *o, *s, *l = NULL;
 708
 709     for (;;) {
 710         s = o = NULL;
 711         i = BIO_gets(in, buf, 512);
 712         if (i <= 0)
 713             return (num);
 714         buf[i - 1] = '\0';
 715         if (!isalnum((unsigned char)buf[0]))
 716             return (num);
 717         o = s = buf;
 718         while (isdigit((unsigned char)*s) || (*s == '.'))
 719             s++;
 720         if (*s != '\0') {
 721             *(s++) = '\0';
 722             while (isspace((unsigned char)*s))
 723                 s++;
 724             if (*s == '\0')
 725                 s = NULL;
 726             else {
 727                 l = s;
 728                 while ((*l != '\0') && !isspace((unsigned char)*l))
 729                     l++;
 730                 if (*l != '\0') {
 731                     *(l++) = '\0';
 732                     while (isspace((unsigned char)*l))
 733                         l++;
 734                     if (*l == '\0')
 735                         l = NULL;
 736                 } else
 737                     l = NULL;
 738             }
 739         } else
 740             s = NULL;
 741         if ((o == NULL) || (*o == '\0'))
 742             return (num);
 743         if (!OBJ_create(o, s, l))
 744             return (num);
 745         num++;
 746     }
 747     /* return(num); */
 748 }
 749
 750 int OBJ_create(const char *oid, const char *sn, const char *ln)
 751 {
 752     int ok = 0;
 753     ASN1_OBJECT *op = NULL;
 754     unsigned char *buf;
 755     int i;
 756
 757     i = a2d_ASN1_OBJECT(NULL, 0, oid, -1);
 758     if (i <= 0)
 759         return (0);
 760
 761     if ((buf = OPENSSL_malloc(i)) == NULL) {
 762         OBJerr(OBJ_F_OBJ_CREATE, ERR_R_MALLOC_FAILURE);
 763         return (0);
 764     }
 765     i = a2d_ASN1_OBJECT(buf, i, oid, -1);
 766     if (i == 0)
 767         goto err;
 768     op = (ASN1_OBJECT *)ASN1_OBJECT_create(OBJ_new_nid(1), buf, i, sn, ln);
 769     if (op == NULL)
 770         goto err;
 771     ok = OBJ_add_object(op);
 772  err:
 773     ASN1_OBJECT_free(op);
 774     OPENSSL_free(buf);
 775     return (ok);
 776 }
 777
 778 size_t OBJ_length(const ASN1_OBJECT *obj)
 779 {
 780     if (obj == NULL)
 781         return 0;
 782     return obj->length;
 783 }
 784
 785 const unsigned char *OBJ_get0_data(const ASN1_OBJECT *obj)
 786 {
 787     if (obj == NULL)
 788         return NULL;
 789     return obj->data;
 790 }