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 "cryptlib.h"
  62 #include <openssl/lhash.h>
  63 #include <openssl/asn1.h>
  64 #include <openssl/objects.h>
  65
  66 /* obj_dat.h is generated from objects.h by obj_dat.pl */
  67 #ifndef NO_OBJECT
  68 #include "obj_dat.h"
  69 #else
  70 /* You will have to load all the objects needed manually in the application */
  71 #define NUM_NID 0
  72 #define NUM_SN 0
  73 #define NUM_LN 0
  74 #define NUM_OBJ 0
  75 static unsigned char lvalues[1];
  76 static ASN1_OBJECT nid_objs[1];
  77 static ASN1_OBJECT *sn_objs[1];
  78 static ASN1_OBJECT *ln_objs[1];
  79 static ASN1_OBJECT *obj_objs[1];
  80 #endif
  81
  82 static int sn_cmp(const void *a, const void *b);
  83 static int ln_cmp(const void *a, const void *b);
  84 static int obj_cmp(const void *a, const void *b);
  85 #define ADDED_DATA      0
  86 #define ADDED_SNAME     1
  87 #define ADDED_LNAME     2
  88 #define ADDED_NID       3
  89
  90 typedef struct added_obj_st
  91         {
  92         int type;
  93         ASN1_OBJECT *obj;
  94         } ADDED_OBJ;
  95
  96 static int new_nid=NUM_NID;
  97 static LHASH *added=NULL;
  98
  99 static int sn_cmp(const void *a, const void *b)
 100         {
 101         const ASN1_OBJECT * const *ap = a, * const *bp = b;
 102         return(strcmp((*ap)->sn,(*bp)->sn));
 103         }
 104
 105 static int ln_cmp(const void *a, const void *b)
 106         {
 107         const ASN1_OBJECT * const *ap = a, * const *bp = b;
 108         return(strcmp((*ap)->ln,(*bp)->ln));
 109         }
 110
 111 /* static unsigned long add_hash(ADDED_OBJ *ca) */
 112 static unsigned long add_hash(const void *ca_void)
 113         {
 114         const ASN1_OBJECT *a;
 115         int i;
 116         unsigned long ret=0;
 117         unsigned char *p;
 118         ADDED_OBJ *ca = (ADDED_OBJ *)ca_void;
 119
 120         a=ca->obj;
 121         switch (ca->type)
 122                 {
 123         case ADDED_DATA:
 124                 ret=a->length<<20L;
 125                 p=(unsigned char *)a->data;
 126                 for (i=0; i<a->length; i++)
 127                         ret^=p[i]<<((i*3)%24);
 128                 break;
 129         case ADDED_SNAME:
 130                 ret=lh_strhash(a->sn);
 131                 break;
 132         case ADDED_LNAME:
 133                 ret=lh_strhash(a->ln);
 134                 break;
 135         case ADDED_NID:
 136                 ret=a->nid;
 137                 break;
 138         default:
 139                 /* abort(); */
 140                 return 0;
 141                 }
 142         ret&=0x3fffffffL;
 143         ret|=ca->type<<30L;
 144         return(ret);
 145         }
 146
 147 /* static int add_cmp(ADDED_OBJ *ca, ADDED_OBJ *cb) */
 148 static int add_cmp(const void *ca_void, const void *cb_void)
 149         {
 150         ASN1_OBJECT *a,*b;
 151         int i;
 152         ADDED_OBJ *ca = (ADDED_OBJ *)ca_void;
 153         ADDED_OBJ *cb = (ADDED_OBJ *)cb_void;
 154
 155         i=ca->type-cb->type;
 156         if (i) return(i);
 157         a=ca->obj;
 158         b=cb->obj;
 159         switch (ca->type)
 160                 {
 161         case ADDED_DATA:
 162                 i=(a->length - b->length);
 163                 if (i) return(i);
 164                 return(memcmp(a->data,b->data,a->length));
 165         case ADDED_SNAME:
 166                 if (a->sn == NULL) return(-1);
 167                 else if (b->sn == NULL) return(1);
 168                 else return(strcmp(a->sn,b->sn));
 169         case ADDED_LNAME:
 170                 if (a->ln == NULL) return(-1);
 171                 else if (b->ln == NULL) return(1);
 172                 else return(strcmp(a->ln,b->ln));
 173         case ADDED_NID:
 174                 return(a->nid-b->nid);
 175         default:
 176                 /* abort(); */
 177                 return 0;
 178                 }
 179         return(1); /* should not get here */
 180         }
 181
 182 static int init_added(void)
 183         {
 184         if (added != NULL) return(1);
 185         added=lh_new(add_hash,add_cmp);
 186         return(added != NULL);
 187         }
 188
 189 static void cleanup1(ADDED_OBJ *a)
 190         {
 191         a->obj->nid=0;
 192         a->obj->flags|=ASN1_OBJECT_FLAG_DYNAMIC|
 193                         ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|
 194                         ASN1_OBJECT_FLAG_DYNAMIC_DATA;
 195         }
 196
 197 static void cleanup2(ADDED_OBJ *a)
 198         { a->obj->nid++; }
 199
 200 static void cleanup3(ADDED_OBJ *a)
 201         {
 202         if (--a->obj->nid == 0)
 203                 ASN1_OBJECT_free(a->obj);
 204         OPENSSL_free(a);
 205         }
 206
 207 void OBJ_cleanup(void)
 208         {
 209         if (added == NULL) return;
 210         added->down_load=0;
 211         lh_doall(added,(LHASH_DOALL_FN_TYPE)cleanup1); /* zero counters */
 212         lh_doall(added,(LHASH_DOALL_FN_TYPE)cleanup2); /* set counters */
 213         lh_doall(added,(LHASH_DOALL_FN_TYPE)cleanup3); /* free objects */
 214         lh_free(added);
 215         added=NULL;
 216         }
 217
 218 int OBJ_new_nid(int num)
 219         {
 220         int i;
 221
 222         i=new_nid;
 223         new_nid+=num;
 224         return(i);
 225         }
 226
 227 int OBJ_add_object(const ASN1_OBJECT *obj)
 228         {
 229         ASN1_OBJECT *o;
 230         ADDED_OBJ *ao[4]={NULL,NULL,NULL,NULL},*aop;
 231         int i;
 232
 233         if (added == NULL)
 234                 if (!init_added()) return(0);
 235         if ((o=OBJ_dup(obj)) == NULL) goto err;
 236         ao[ADDED_NID]=(ADDED_OBJ *)OPENSSL_malloc(sizeof(ADDED_OBJ));
 237         if ((o->length != 0) && (obj->data != NULL))
 238                 ao[ADDED_DATA]=(ADDED_OBJ *)OPENSSL_malloc(sizeof(ADDED_OBJ));
 239         if (o->sn != NULL)
 240                 ao[ADDED_SNAME]=(ADDED_OBJ *)OPENSSL_malloc(sizeof(ADDED_OBJ));
 241         if (o->ln != NULL)
 242                 ao[ADDED_LNAME]=(ADDED_OBJ *)OPENSSL_malloc(sizeof(ADDED_OBJ));
 243
 244         for (i=ADDED_DATA; i<=ADDED_NID; i++)
 245                 {
 246                 if (ao[i] != NULL)
 247                         {
 248                         ao[i]->type=i;
 249                         ao[i]->obj=o;
 250                         aop=(ADDED_OBJ *)lh_insert(added,ao[i]);
 251                         /* memory leak, buit should not normally matter */
 252                         if (aop != NULL)
 253                                 OPENSSL_free(aop);
 254                         }
 255                 }
 256         o->flags&= ~(ASN1_OBJECT_FLAG_DYNAMIC|ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|
 257                         ASN1_OBJECT_FLAG_DYNAMIC_DATA);
 258
 259         return(o->nid);
 260 err:
 261         for (i=ADDED_DATA; i<=ADDED_NID; i++)
 262                 if (ao[i] != NULL) OPENSSL_free(ao[i]);
 263         if (o != NULL) OPENSSL_free(o);
 264         return(NID_undef);
 265         }
 266
 267 ASN1_OBJECT *OBJ_nid2obj(int n)
 268         {
 269         ADDED_OBJ ad,*adp;
 270         ASN1_OBJECT ob;
 271
 272         if ((n >= 0) && (n < NUM_NID))
 273                 {
 274                 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef))
 275                         {
 276                         OBJerr(OBJ_F_OBJ_NID2OBJ,OBJ_R_UNKNOWN_NID);
 277                         return(NULL);
 278                         }
 279                 return((ASN1_OBJECT *)&(nid_objs[n]));
 280                 }
 281         else if (added == NULL)
 282                 return(NULL);
 283         else
 284                 {
 285                 ad.type=ADDED_NID;
 286                 ad.obj= &ob;
 287                 ob.nid=n;
 288                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
 289                 if (adp != NULL)
 290                         return(adp->obj);
 291                 else
 292                         {
 293                         OBJerr(OBJ_F_OBJ_NID2OBJ,OBJ_R_UNKNOWN_NID);
 294                         return(NULL);
 295                         }
 296                 }
 297         }
 298
 299 const char *OBJ_nid2sn(int n)
 300         {
 301         ADDED_OBJ ad,*adp;
 302         ASN1_OBJECT ob;
 303
 304         if ((n >= 0) && (n < NUM_NID))
 305                 {
 306                 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef))
 307                         {
 308                         OBJerr(OBJ_F_OBJ_NID2SN,OBJ_R_UNKNOWN_NID);
 309                         return(NULL);
 310                         }
 311                 return(nid_objs[n].sn);
 312                 }
 313         else if (added == NULL)
 314                 return(NULL);
 315         else
 316                 {
 317                 ad.type=ADDED_NID;
 318                 ad.obj= &ob;
 319                 ob.nid=n;
 320                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
 321                 if (adp != NULL)
 322                         return(adp->obj->sn);
 323                 else
 324                         {
 325                         OBJerr(OBJ_F_OBJ_NID2SN,OBJ_R_UNKNOWN_NID);
 326                         return(NULL);
 327                         }
 328                 }
 329         }
 330
 331 const char *OBJ_nid2ln(int n)
 332         {
 333         ADDED_OBJ ad,*adp;
 334         ASN1_OBJECT ob;
 335
 336         if ((n >= 0) && (n < NUM_NID))
 337                 {
 338                 if ((n != NID_undef) && (nid_objs[n].nid == NID_undef))
 339                         {
 340                         OBJerr(OBJ_F_OBJ_NID2LN,OBJ_R_UNKNOWN_NID);
 341                         return(NULL);
 342                         }
 343                 return(nid_objs[n].ln);
 344                 }
 345         else if (added == NULL)
 346                 return(NULL);
 347         else
 348                 {
 349                 ad.type=ADDED_NID;
 350                 ad.obj= &ob;
 351                 ob.nid=n;
 352                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
 353                 if (adp != NULL)
 354                         return(adp->obj->ln);
 355                 else
 356                         {
 357                         OBJerr(OBJ_F_OBJ_NID2LN,OBJ_R_UNKNOWN_NID);
 358                         return(NULL);
 359                         }
 360                 }
 361         }
 362
 363 int OBJ_obj2nid(const ASN1_OBJECT *a)
 364         {
 365         ASN1_OBJECT **op;
 366         ADDED_OBJ ad,*adp;
 367
 368         if (a == NULL)
 369                 return(NID_undef);
 370         if (a->nid != 0)
 371                 return(a->nid);
 372
 373         if (added != NULL)
 374                 {
 375                 ad.type=ADDED_DATA;
 376                 ad.obj=(ASN1_OBJECT *)a; /* XXX: ugly but harmless */
 377                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
 378                 if (adp != NULL) return (adp->obj->nid);
 379                 }
 380         op=(ASN1_OBJECT **)OBJ_bsearch((char *)&a,(char *)obj_objs,NUM_OBJ,
 381                 sizeof(ASN1_OBJECT *),obj_cmp);
 382         if (op == NULL)
 383                 return(NID_undef);
 384         return((*op)->nid);
 385         }
 386
 387 /* Convert an object name into an ASN1_OBJECT
 388  * if "noname" is not set then search for short and long names first.
 389  * This will convert the "dotted" form into an object: unlike OBJ_txt2nid
 390  * it can be used with any objects, not just registered ones.
 391  */
 392
 393 ASN1_OBJECT *OBJ_txt2obj(const char *s, int no_name)
 394         {
 395         int nid = NID_undef;
 396         ASN1_OBJECT *op=NULL;
 397         unsigned char *buf,*p;
 398         int i, j;
 399
 400         if(!no_name) {
 401                 if( ((nid = OBJ_sn2nid(s)) != NID_undef) ||
 402                         ((nid = OBJ_ln2nid(s)) != NID_undef) )
 403                                         return OBJ_nid2obj(nid);
 404         }
 405
 406         /* Work out size of content octets */
 407         i=a2d_ASN1_OBJECT(NULL,0,s,-1);
 408         if (i <= 0) {
 409                 /* Clear the error */
 410                 ERR_get_error();
 411                 return NULL;
 412         }
 413         /* Work out total size */
 414         j = ASN1_object_size(0,i,V_ASN1_OBJECT);
 415
 416         if((buf=(unsigned char *)OPENSSL_malloc(j)) == NULL) return NULL;
 417
 418         p = buf;
 419         /* Write out tag+length */
 420         ASN1_put_object(&p,0,i,V_ASN1_OBJECT,V_ASN1_UNIVERSAL);
 421         /* Write out contents */
 422         a2d_ASN1_OBJECT(p,i,s,-1);
 423
 424         p=buf;
 425         op=d2i_ASN1_OBJECT(NULL,&p,i);
 426         OPENSSL_free(buf);
 427         return op;
 428         }
 429
 430 int OBJ_obj2txt(char *buf, int buf_len, const ASN1_OBJECT *a, int no_name)
 431 {
 432         int i,idx=0,n=0,len,nid;
 433         unsigned long l;
 434         unsigned char *p;
 435         const char *s;
 436         char tbuf[32];
 437
 438         if (buf_len <= 0) return(0);
 439
 440         if ((a == NULL) || (a->data == NULL)) {
 441                 buf[0]='\0';
 442                 return(0);
 443         }
 444
 445         nid=OBJ_obj2nid(a);
 446         if ((nid == NID_undef) || no_name) {
 447                 len=a->length;
 448                 p=a->data;
 449
 450                 idx=0;
 451                 l=0;
 452                 while (idx < a->length) {
 453                         l|=(p[idx]&0x7f);
 454                         if (!(p[idx] & 0x80)) break;
 455                         l<<=7L;
 456                         idx++;
 457                 }
 458                 idx++;
 459                 i=(int)(l/40);
 460                 if (i > 2) i=2;
 461                 l-=(long)(i*40);
 462
 463                 sprintf(tbuf,"%d.%lu",i,l);
 464                 i=strlen(tbuf);
 465                 strncpy(buf,tbuf,buf_len);
 466                 buf_len-=i;
 467                 buf+=i;
 468                 n+=i;
 469
 470                 l=0;
 471                 for (; idx<len; idx++) {
 472                         l|=p[idx]&0x7f;
 473                         if (!(p[idx] & 0x80)) {
 474                                 sprintf(tbuf,".%lu",l);
 475                                 i=strlen(tbuf);
 476                                 if (buf_len > 0)
 477                                         strncpy(buf,tbuf,buf_len);
 478                                 buf_len-=i;
 479                                 buf+=i;
 480                                 n+=i;
 481                                 l=0;
 482                         }
 483                         l<<=7L;
 484                 }
 485         } else {
 486                 s=OBJ_nid2ln(nid);
 487                 if (s == NULL)
 488                         s=OBJ_nid2sn(nid);
 489                 strncpy(buf,s,buf_len);
 490                 n=strlen(s);
 491         }
 492         buf[buf_len-1]='\0';
 493         return(n);
 494 }
 495
 496 int OBJ_txt2nid(const char *s)
 497 {
 498         ASN1_OBJECT *obj;
 499         int nid;
 500         obj = OBJ_txt2obj(s, 0);
 501         nid = OBJ_obj2nid(obj);
 502         ASN1_OBJECT_free(obj);
 503         return nid;
 504 }
 505
 506 int OBJ_ln2nid(const char *s)
 507         {
 508         ASN1_OBJECT o,*oo= &o,**op;
 509         ADDED_OBJ ad,*adp;
 510
 511         o.ln=s;
 512         if (added != NULL)
 513                 {
 514                 ad.type=ADDED_LNAME;
 515                 ad.obj= &o;
 516                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
 517                 if (adp != NULL) return (adp->obj->nid);
 518                 }
 519         op=(ASN1_OBJECT **)OBJ_bsearch((char *)&oo,(char *)ln_objs,NUM_LN,
 520                 sizeof(ASN1_OBJECT *),ln_cmp);
 521         if (op == NULL) return(NID_undef);
 522         return((*op)->nid);
 523         }
 524
 525 int OBJ_sn2nid(const char *s)
 526         {
 527         ASN1_OBJECT o,*oo= &o,**op;
 528         ADDED_OBJ ad,*adp;
 529
 530         o.sn=s;
 531         if (added != NULL)
 532                 {
 533                 ad.type=ADDED_SNAME;
 534                 ad.obj= &o;
 535                 adp=(ADDED_OBJ *)lh_retrieve(added,&ad);
 536                 if (adp != NULL) return (adp->obj->nid);
 537                 }
 538         op=(ASN1_OBJECT **)OBJ_bsearch((char *)&oo,(char *)sn_objs,NUM_SN,
 539                 sizeof(ASN1_OBJECT *),sn_cmp);
 540         if (op == NULL) return(NID_undef);
 541         return((*op)->nid);
 542         }
 543
 544 static int obj_cmp(const void *ap, const void *bp)
 545         {
 546         int j;
 547         ASN1_OBJECT *a= *(ASN1_OBJECT **)ap;
 548         ASN1_OBJECT *b= *(ASN1_OBJECT **)bp;
 549
 550         j=(a->length - b->length);
 551         if (j) return(j);
 552         return(memcmp(a->data,b->data,a->length));
 553         }
 554
 555 const char *OBJ_bsearch(const char *key, const char *base, int num, int size,
 556         int (*cmp)(const void *, const void *))
 557         {
 558         int l,h,i,c;
 559         const char *p;
 560
 561         if (num == 0) return(NULL);
 562         l=0;
 563         h=num;
 564         while (l < h)
 565                 {
 566                 i=(l+h)/2;
 567                 p= &(base[i*size]);
 568                 c=(*cmp)(key,p);
 569                 if (c < 0)
 570                         h=i;
 571                 else if (c > 0)
 572                         l=i+1;
 573                 else
 574                         return(p);
 575                 }
 576 #ifdef CHARSET_EBCDIC
 577 /* THIS IS A KLUDGE - Because the *_obj is sorted in ASCII order, and
 578  * I don't have perl (yet), we revert to a *LINEAR* search
 579  * when the object wasn't found in the binary search.
 580  */
 581         for (i=0; i<num; ++i) {
 582                 p= &(base[i*size]);
 583                 if ((*cmp)(key,p) == 0)
 584                         return p;
 585         }
 586 #endif
 587         return(NULL);
 588         }
 589
 590 int OBJ_create_objects(BIO *in)
 591         {
 592         MS_STATIC char buf[512];
 593         int i,num=0;
 594         char *o,*s,*l=NULL;
 595
 596         for (;;)
 597                 {
 598                 s=o=NULL;
 599                 i=BIO_gets(in,buf,512);
 600                 if (i <= 0) return(num);
 601                 buf[i-1]='\0';
 602                 if (!isalnum((unsigned char)buf[0])) return(num);
 603                 o=s=buf;
 604                 while (isdigit((unsigned char)*s) || (*s == '.'))
 605                         s++;
 606                 if (*s != '\0')
 607                         {
 608                         *(s++)='\0';
 609                         while (isspace((unsigned char)*s))
 610                                 s++;
 611                         if (*s == '\0')
 612                                 s=NULL;
 613                         else
 614                                 {
 615                                 l=s;
 616                                 while ((*l != '\0') && !isspace((unsigned char)*l))
 617                                         l++;
 618                                 if (*l != '\0')
 619                                         {
 620                                         *(l++)='\0';
 621                                         while (isspace((unsigned char)*l))
 622                                                 l++;
 623                                         if (*l == '\0') l=NULL;
 624                                         }
 625                                 else
 626                                         l=NULL;
 627                                 }
 628                         }
 629                 else
 630                         s=NULL;
 631                 if ((o == NULL) || (*o == '\0')) return(num);
 632                 if (!OBJ_create(o,s,l)) return(num);
 633                 num++;
 634                 }
 635         /* return(num); */
 636         }
 637
 638 int OBJ_create(const char *oid, const char *sn, const char *ln)
 639         {
 640         int ok=0;
 641         ASN1_OBJECT *op=NULL;
 642         unsigned char *buf;
 643         int i;
 644
 645         i=a2d_ASN1_OBJECT(NULL,0,oid,-1);
 646         if (i <= 0) return(0);
 647
 648         if ((buf=(unsigned char *)OPENSSL_malloc(i)) == NULL)
 649                 {
 650                 OBJerr(OBJ_F_OBJ_CREATE,OBJ_R_MALLOC_FAILURE);
 651                 return(0);
 652                 }
 653         i=a2d_ASN1_OBJECT(buf,i,oid,-1);
 654         op=(ASN1_OBJECT *)ASN1_OBJECT_create(OBJ_new_nid(1),buf,i,sn,ln);
 655         if (op == NULL)
 656                 goto err;
 657         ok=OBJ_add_object(op);
 658 err:
 659         ASN1_OBJECT_free(op);
 660         OPENSSL_free(buf);
 661         return(ok);
 662         }
 663