git.sur5r.net Git - openldap/blob - libraries/libldap/schema.c

   1 /* $OpenLDAP$ */
   2 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
   3  *
   4  * Copyright 1998-2005 The OpenLDAP Foundation.
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted only as authorized by the OpenLDAP
   9  * Public License.
  10  *
  11  * A copy of this license is available in the file LICENSE in the
  12  * top-level directory of the distribution or, alternatively, at
  13  * <http://www.OpenLDAP.org/license.html>.
  14  */
  15
  16 /*
  17  * schema.c:  parsing routines used by servers and clients to process
  18  *      schema definitions
  19  */
  20
  21 #include "portable.h"
  22
  23 #include <stdio.h>
  24 #include <ac/stdlib.h>
  25
  26 #include <ac/string.h>
  27 #include <ac/time.h>
  28
  29 #include "ldap-int.h"
  30
  31 #include <ldap_schema.h>
  32
  33 static const char *
  34 choose_name( char *names[], const char *fallback )
  35 {
  36         return (names != NULL && names[0] != NULL) ? names[0] : fallback;
  37 }
  38
  39 LDAP_CONST char *
  40 ldap_syntax2name( LDAPSyntax * syn )
  41 {
  42         return( syn->syn_oid );
  43 }
  44
  45 LDAP_CONST char *
  46 ldap_matchingrule2name( LDAPMatchingRule * mr )
  47 {
  48         return( choose_name( mr->mr_names, mr->mr_oid ) );
  49 }
  50
  51 LDAP_CONST char *
  52 ldap_matchingruleuse2name( LDAPMatchingRuleUse * mru )
  53 {
  54         return( choose_name( mru->mru_names, mru->mru_oid ) );
  55 }
  56
  57 LDAP_CONST char *
  58 ldap_attributetype2name( LDAPAttributeType * at )
  59 {
  60         return( choose_name( at->at_names, at->at_oid ) );
  61 }
  62
  63 LDAP_CONST char *
  64 ldap_objectclass2name( LDAPObjectClass * oc )
  65 {
  66         return( choose_name( oc->oc_names, oc->oc_oid ) );
  67 }
  68
  69 LDAP_CONST char *
  70 ldap_contentrule2name( LDAPContentRule * cr )
  71 {
  72         return( choose_name( cr->cr_names, cr->cr_oid ) );
  73 }
  74
  75 LDAP_CONST char *
  76 ldap_nameform2name( LDAPNameForm * nf )
  77 {
  78         return( choose_name( nf->nf_names, nf->nf_oid ) );
  79 }
  80
  81 LDAP_CONST char *
  82 ldap_structurerule2name( LDAPStructureRule * sr )
  83 {
  84         return( choose_name( sr->sr_names, NULL ) );
  85 }
  86
  87 /*
  88  * When pretty printing the entities we will be appending to a buffer.
  89  * Since checking for overflow, realloc'ing and checking if no error
  90  * is extremely boring, we will use a protection layer that will let
  91  * us blissfully ignore the error until the end.  This layer is
  92  * implemented with the help of the next type.
  93  */
  94
  95 typedef struct safe_string {
  96         char * val;
  97         ber_len_t size;
  98         ber_len_t pos;
  99         int at_whsp;
 100 } safe_string;
 101
 102 static safe_string *
 103 new_safe_string(int size)
 104 {
 105         safe_string * ss;
 106
 107         ss = LDAP_MALLOC(sizeof(safe_string));
 108         if ( !ss )
 109                 return(NULL);
 110
 111         ss->val = LDAP_MALLOC(size);
 112         if ( !ss->val ) {
 113                 LDAP_FREE(ss);
 114                 return(NULL);
 115         }
 116
 117         ss->size = size;
 118         ss->pos = 0;
 119         ss->at_whsp = 0;
 120
 121         return ss;
 122 }
 123
 124 static void
 125 safe_string_free(safe_string * ss)
 126 {
 127         if ( !ss )
 128                 return;
 129         LDAP_FREE(ss->val);
 130         LDAP_FREE(ss);
 131 }
 132
 133 #if 0   /* unused */
 134 static char *
 135 safe_string_val(safe_string * ss)
 136 {
 137         ss->val[ss->pos] = '\0';
 138         return(ss->val);
 139 }
 140 #endif
 141
 142 static char *
 143 safe_strdup(safe_string * ss)
 144 {
 145         char *ret = LDAP_MALLOC(ss->pos+1);
 146         if (!ret)
 147                 return NULL;
 148         AC_MEMCPY(ret, ss->val, ss->pos);
 149         ret[ss->pos] = '\0';
 150         return ret;
 151 }
 152
 153 static int
 154 append_to_safe_string(safe_string * ss, char * s)
 155 {
 156         int l = strlen(s);
 157         char * temp;
 158
 159         /*
 160          * Some runaway process is trying to append to a string that
 161          * overflowed and we could not extend.
 162          */
 163         if ( !ss->val )
 164                 return -1;
 165
 166         /* We always make sure there is at least one position available */
 167         if ( ss->pos + l >= ss->size-1 ) {
 168                 ss->size *= 2;
 169                 if ( ss->pos + l >= ss->size-1 ) {
 170                         ss->size = ss->pos + l + 1;
 171                 }
 172
 173                 temp = LDAP_REALLOC(ss->val, ss->size);
 174                 if ( !temp ) {
 175                         /* Trouble, out of memory */
 176                         LDAP_FREE(ss->val);
 177                         return -1;
 178                 }
 179                 ss->val = temp;
 180         }
 181         strncpy(&ss->val[ss->pos], s, l);
 182         ss->pos += l;
 183         if ( ss->pos > 0 && LDAP_SPACE(ss->val[ss->pos-1]) )
 184                 ss->at_whsp = 1;
 185         else
 186                 ss->at_whsp = 0;
 187
 188         return 0;
 189 }
 190
 191 static int
 192 print_literal(safe_string *ss, char *s)
 193 {
 194         return(append_to_safe_string(ss,s));
 195 }
 196
 197 static int
 198 print_whsp(safe_string *ss)
 199 {
 200         if ( ss->at_whsp )
 201                 return(append_to_safe_string(ss,""));
 202         else
 203                 return(append_to_safe_string(ss," "));
 204 }
 205
 206 static int
 207 print_numericoid(safe_string *ss, char *s)
 208 {
 209         if ( s )
 210                 return(append_to_safe_string(ss,s));
 211         else
 212                 return(append_to_safe_string(ss,""));
 213 }
 214
 215 /* This one is identical to print_qdescr */
 216 static int
 217 print_qdstring(safe_string *ss, char *s)
 218 {
 219         print_whsp(ss);
 220         print_literal(ss,"'");
 221         append_to_safe_string(ss,s);
 222         print_literal(ss,"'");
 223         return(print_whsp(ss));
 224 }
 225
 226 static int
 227 print_qdescr(safe_string *ss, char *s)
 228 {
 229         print_whsp(ss);
 230         print_literal(ss,"'");
 231         append_to_safe_string(ss,s);
 232         print_literal(ss,"'");
 233         return(print_whsp(ss));
 234 }
 235
 236 static int
 237 print_qdescrlist(safe_string *ss, char **sa)
 238 {
 239         char **sp;
 240         int ret = 0;
 241
 242         for (sp=sa; *sp; sp++) {
 243                 ret = print_qdescr(ss,*sp);
 244         }
 245         /* If the list was empty, we return zero that is potentially
 246          * incorrect, but since we will be still appending things, the
 247          * overflow will be detected later.  Maybe FIX.
 248          */
 249         return(ret);
 250 }
 251
 252 static int
 253 print_qdescrs(safe_string *ss, char **sa)
 254 {
 255         /* The only way to represent an empty list is as a qdescrlist
 256          * so, if the list is empty we treat it as a long list.
 257          * Really, this is what the syntax mandates.  We should not
 258          * be here if the list was empty, but if it happens, a label
 259          * has already been output and we cannot undo it.
 260          */
 261         if ( !sa[0] || ( sa[0] && sa[1] ) ) {
 262                 print_whsp(ss);
 263                 print_literal(ss,"("/*)*/);
 264                 print_qdescrlist(ss,sa);
 265                 print_literal(ss,/*(*/")");
 266                 return(print_whsp(ss));
 267         } else {
 268           return(print_qdescr(ss,*sa));
 269         }
 270 }
 271
 272 static int
 273 print_woid(safe_string *ss, char *s)
 274 {
 275         print_whsp(ss);
 276         append_to_safe_string(ss,s);
 277         return print_whsp(ss);
 278 }
 279
 280 static int
 281 print_oidlist(safe_string *ss, char **sa)
 282 {
 283         char **sp;
 284
 285         for (sp=sa; *(sp+1); sp++) {
 286                 print_woid(ss,*sp);
 287                 print_literal(ss,"$");
 288         }
 289         return(print_woid(ss,*sp));
 290 }
 291
 292 static int
 293 print_oids(safe_string *ss, char **sa)
 294 {
 295         if ( sa[0] && sa[1] ) {
 296                 print_literal(ss,"("/*)*/);
 297                 print_oidlist(ss,sa);
 298                 print_whsp(ss);
 299                 return(print_literal(ss,/*(*/")"));
 300         } else {
 301                 return(print_woid(ss,*sa));
 302         }
 303 }
 304
 305 static int
 306 print_noidlen(safe_string *ss, char *s, int l)
 307 {
 308         char buf[64];
 309         int ret;
 310
 311         ret = print_numericoid(ss,s);
 312         if ( l ) {
 313                 snprintf(buf, sizeof buf, "{%d}",l);
 314                 ret = print_literal(ss,buf);
 315         }
 316         return(ret);
 317 }
 318
 319 static int
 320 print_ruleid(safe_string *ss, int rid)
 321 {
 322         char buf[64];
 323         snprintf(buf, sizeof buf, "%d", rid);
 324         return print_literal(ss,buf);
 325 }
 326
 327 static int
 328 print_ruleids(safe_string *ss, int n, int *rids)
 329 {
 330         int i;
 331
 332         if( n == 1 ) {
 333                 print_ruleid(ss,rids[0]);
 334                 return print_whsp(ss);
 335         } else {
 336                 print_literal(ss,"("/*)*/);
 337                 for( i=0; i<n; i++ ) {
 338                         print_whsp(ss);
 339                         print_ruleid(ss,rids[i]);
 340                 }
 341                 print_whsp(ss);
 342                 return print_literal(ss,/*(*/")");
 343         }
 344 }
 345
 346
 347 static int
 348 print_extensions(safe_string *ss, LDAPSchemaExtensionItem **extensions)
 349 {
 350         LDAPSchemaExtensionItem **ext;
 351
 352         if ( extensions ) {
 353                 print_whsp(ss);
 354                 for ( ext = extensions; *ext != NULL; ext++ ) {
 355                         print_literal(ss, (*ext)->lsei_name);
 356                         print_whsp(ss);
 357                         /* Should be print_qdstrings */
 358                         print_qdescrs(ss, (*ext)->lsei_values);
 359                         print_whsp(ss);
 360                 }
 361         }
 362
 363         return 0;
 364 }
 365
 366 char *
 367 ldap_syntax2str( LDAPSyntax * syn )
 368 {
 369         struct berval bv;
 370         if (ldap_syntax2bv( syn, &bv ))
 371                 return(bv.bv_val);
 372         else
 373                 return NULL;
 374 }
 375
 376 struct berval *
 377 ldap_syntax2bv( LDAPSyntax * syn, struct berval *bv )
 378 {
 379         safe_string * ss;
 380
 381         ss = new_safe_string(256);
 382         if ( !ss )
 383                 return NULL;
 384
 385         print_literal(ss,"("/*)*/);
 386         print_whsp(ss);
 387
 388         print_numericoid(ss, syn->syn_oid);
 389         print_whsp(ss);
 390
 391         if ( syn->syn_desc ) {
 392                 print_literal(ss,"DESC");
 393                 print_qdstring(ss,syn->syn_desc);
 394         }
 395
 396         print_whsp(ss);
 397
 398         print_extensions(ss, syn->syn_extensions);
 399
 400         print_literal(ss,/*(*/ ")");
 401
 402         bv->bv_val = safe_strdup(ss);
 403         bv->bv_len = ss->pos;
 404         safe_string_free(ss);
 405         return(bv);
 406 }
 407
 408 char *
 409 ldap_matchingrule2str( LDAPMatchingRule * mr )
 410 {
 411         struct berval bv;
 412         if (ldap_matchingrule2bv( mr, &bv ))
 413                 return(bv.bv_val);
 414         else
 415                 return NULL;
 416 }
 417
 418 struct berval *
 419 ldap_matchingrule2bv( LDAPMatchingRule * mr, struct berval *bv )
 420 {
 421         safe_string * ss;
 422
 423         ss = new_safe_string(256);
 424         if ( !ss )
 425                 return NULL;
 426
 427         print_literal(ss,"(" /*)*/);
 428         print_whsp(ss);
 429
 430         print_numericoid(ss, mr->mr_oid);
 431         print_whsp(ss);
 432
 433         if ( mr->mr_names ) {
 434                 print_literal(ss,"NAME");
 435                 print_qdescrs(ss,mr->mr_names);
 436         }
 437
 438         if ( mr->mr_desc ) {
 439                 print_literal(ss,"DESC");
 440                 print_qdstring(ss,mr->mr_desc);
 441         }
 442
 443         if ( mr->mr_obsolete ) {
 444                 print_literal(ss, "OBSOLETE");
 445                 print_whsp(ss);
 446         }
 447
 448         if ( mr->mr_syntax_oid ) {
 449                 print_literal(ss,"SYNTAX");
 450                 print_whsp(ss);
 451                 print_literal(ss, mr->mr_syntax_oid);
 452                 print_whsp(ss);
 453         }
 454
 455         print_whsp(ss);
 456
 457         print_extensions(ss, mr->mr_extensions);
 458
 459         print_literal(ss,/*(*/")");
 460
 461         bv->bv_val = safe_strdup(ss);
 462         bv->bv_len = ss->pos;
 463         safe_string_free(ss);
 464         return(bv);
 465 }
 466
 467 char *
 468 ldap_matchingruleuse2str( LDAPMatchingRuleUse * mru )
 469 {
 470         struct berval bv;
 471         if (ldap_matchingruleuse2bv( mru, &bv ))
 472                 return(bv.bv_val);
 473         else
 474                 return NULL;
 475 }
 476
 477 struct berval *
 478 ldap_matchingruleuse2bv( LDAPMatchingRuleUse * mru, struct berval *bv )
 479 {
 480         safe_string * ss;
 481
 482         ss = new_safe_string(256);
 483         if ( !ss )
 484                 return NULL;
 485
 486         print_literal(ss,"(" /*)*/);
 487         print_whsp(ss);
 488
 489         print_numericoid(ss, mru->mru_oid);
 490         print_whsp(ss);
 491
 492         if ( mru->mru_names ) {
 493                 print_literal(ss,"NAME");
 494                 print_qdescrs(ss,mru->mru_names);
 495         }
 496
 497         if ( mru->mru_desc ) {
 498                 print_literal(ss,"DESC");
 499                 print_qdstring(ss,mru->mru_desc);
 500         }
 501
 502         if ( mru->mru_obsolete ) {
 503                 print_literal(ss, "OBSOLETE");
 504                 print_whsp(ss);
 505         }
 506
 507         if ( mru->mru_applies_oids ) {
 508                 print_literal(ss,"APPLIES");
 509                 print_whsp(ss);
 510                 print_oids(ss, mru->mru_applies_oids);
 511                 print_whsp(ss);
 512         }
 513
 514         print_whsp(ss);
 515
 516         print_extensions(ss, mru->mru_extensions);
 517
 518         print_literal(ss,/*(*/")");
 519
 520         bv->bv_val = safe_strdup(ss);
 521         bv->bv_len = ss->pos;
 522         safe_string_free(ss);
 523         return(bv);
 524 }
 525
 526 char *
 527 ldap_objectclass2str( LDAPObjectClass * oc )
 528 {
 529         struct berval bv;
 530         if (ldap_objectclass2bv( oc, &bv ))
 531                 return(bv.bv_val);
 532         else
 533                 return NULL;
 534 }
 535
 536 struct berval *
 537 ldap_objectclass2bv( LDAPObjectClass * oc, struct berval *bv )
 538 {
 539         safe_string * ss;
 540
 541         ss = new_safe_string(256);
 542         if ( !ss )
 543                 return NULL;
 544
 545         print_literal(ss,"("/*)*/);
 546         print_whsp(ss);
 547
 548         print_numericoid(ss, oc->oc_oid);
 549         print_whsp(ss);
 550
 551         if ( oc->oc_names ) {
 552                 print_literal(ss,"NAME");
 553                 print_qdescrs(ss,oc->oc_names);
 554         }
 555
 556         if ( oc->oc_desc ) {
 557                 print_literal(ss,"DESC");
 558                 print_qdstring(ss,oc->oc_desc);
 559         }
 560
 561         if ( oc->oc_obsolete ) {
 562                 print_literal(ss, "OBSOLETE");
 563                 print_whsp(ss);
 564         }
 565
 566         if ( oc->oc_sup_oids ) {
 567                 print_literal(ss,"SUP");
 568                 print_whsp(ss);
 569                 print_oids(ss,oc->oc_sup_oids);
 570                 print_whsp(ss);
 571         }
 572
 573         switch (oc->oc_kind) {
 574         case LDAP_SCHEMA_ABSTRACT:
 575                 print_literal(ss,"ABSTRACT");
 576                 break;
 577         case LDAP_SCHEMA_STRUCTURAL:
 578                 print_literal(ss,"STRUCTURAL");
 579                 break;
 580         case LDAP_SCHEMA_AUXILIARY:
 581                 print_literal(ss,"AUXILIARY");
 582                 break;
 583         default:
 584                 print_literal(ss,"KIND-UNKNOWN");
 585                 break;
 586         }
 587         print_whsp(ss);
 588
 589         if ( oc->oc_at_oids_must ) {
 590                 print_literal(ss,"MUST");
 591                 print_whsp(ss);
 592                 print_oids(ss,oc->oc_at_oids_must);
 593                 print_whsp(ss);
 594         }
 595
 596         if ( oc->oc_at_oids_may ) {
 597                 print_literal(ss,"MAY");
 598                 print_whsp(ss);
 599                 print_oids(ss,oc->oc_at_oids_may);
 600                 print_whsp(ss);
 601         }
 602
 603         print_whsp(ss);
 604
 605         print_extensions(ss, oc->oc_extensions);
 606
 607         print_literal(ss, /*(*/")");
 608
 609         bv->bv_val = safe_strdup(ss);
 610         bv->bv_len = ss->pos;
 611         safe_string_free(ss);
 612         return(bv);
 613 }
 614
 615 char *
 616 ldap_contentrule2str( LDAPContentRule * cr )
 617 {
 618         struct berval bv;
 619         if (ldap_contentrule2bv( cr, &bv ))
 620                 return(bv.bv_val);
 621         else
 622                 return NULL;
 623 }
 624
 625 struct berval *
 626 ldap_contentrule2bv( LDAPContentRule * cr, struct berval *bv )
 627 {
 628         safe_string * ss;
 629
 630         ss = new_safe_string(256);
 631         if ( !ss )
 632                 return NULL;
 633
 634         print_literal(ss,"("/*)*/);
 635         print_whsp(ss);
 636
 637         print_numericoid(ss, cr->cr_oid);
 638         print_whsp(ss);
 639
 640         if ( cr->cr_names ) {
 641                 print_literal(ss,"NAME");
 642                 print_qdescrs(ss,cr->cr_names);
 643         }
 644
 645         if ( cr->cr_desc ) {
 646                 print_literal(ss,"DESC");
 647                 print_qdstring(ss,cr->cr_desc);
 648         }
 649
 650         if ( cr->cr_obsolete ) {
 651                 print_literal(ss, "OBSOLETE");
 652                 print_whsp(ss);
 653         }
 654
 655         if ( cr->cr_oc_oids_aux ) {
 656                 print_literal(ss,"AUX");
 657                 print_whsp(ss);
 658                 print_oids(ss,cr->cr_oc_oids_aux);
 659                 print_whsp(ss);
 660         }
 661
 662         if ( cr->cr_at_oids_must ) {
 663                 print_literal(ss,"MUST");
 664                 print_whsp(ss);
 665                 print_oids(ss,cr->cr_at_oids_must);
 666                 print_whsp(ss);
 667         }
 668
 669         if ( cr->cr_at_oids_may ) {
 670                 print_literal(ss,"MAY");
 671                 print_whsp(ss);
 672                 print_oids(ss,cr->cr_at_oids_may);
 673                 print_whsp(ss);
 674         }
 675
 676         if ( cr->cr_at_oids_not ) {
 677                 print_literal(ss,"NOT");
 678                 print_whsp(ss);
 679                 print_oids(ss,cr->cr_at_oids_not);
 680                 print_whsp(ss);
 681         }
 682
 683         print_whsp(ss);
 684         print_extensions(ss, cr->cr_extensions);
 685
 686         print_literal(ss, /*(*/")");
 687
 688         bv->bv_val = safe_strdup(ss);
 689         bv->bv_len = ss->pos;
 690         safe_string_free(ss);
 691         return(bv);
 692 }
 693
 694 char *
 695 ldap_structurerule2str( LDAPStructureRule * sr )
 696 {
 697         struct berval bv;
 698         if (ldap_structurerule2bv( sr, &bv ))
 699                 return(bv.bv_val);
 700         else
 701                 return NULL;
 702 }
 703
 704 struct berval *
 705 ldap_structurerule2bv( LDAPStructureRule * sr, struct berval *bv )
 706 {
 707         safe_string * ss;
 708
 709         ss = new_safe_string(256);
 710         if ( !ss )
 711                 return NULL;
 712
 713         print_literal(ss,"("/*)*/);
 714         print_whsp(ss);
 715
 716         print_ruleid(ss, sr->sr_ruleid);
 717         print_whsp(ss);
 718
 719         if ( sr->sr_names ) {
 720                 print_literal(ss,"NAME");
 721                 print_qdescrs(ss,sr->sr_names);
 722         }
 723
 724         if ( sr->sr_desc ) {
 725                 print_literal(ss,"DESC");
 726                 print_qdstring(ss,sr->sr_desc);
 727         }
 728
 729         if ( sr->sr_obsolete ) {
 730                 print_literal(ss, "OBSOLETE");
 731                 print_whsp(ss);
 732         }
 733
 734         print_literal(ss,"FORM");
 735         print_whsp(ss);
 736         print_woid(ss,sr->sr_nameform);
 737         print_whsp(ss);
 738
 739         if ( sr->sr_nsup_ruleids ) {
 740                 print_literal(ss,"SUP");
 741                 print_whsp(ss);
 742                 print_ruleids(ss,sr->sr_nsup_ruleids,sr->sr_sup_ruleids);
 743                 print_whsp(ss);
 744         }
 745
 746         print_whsp(ss);
 747         print_extensions(ss, sr->sr_extensions);
 748
 749         print_literal(ss, /*(*/")");
 750
 751         bv->bv_val = safe_strdup(ss);
 752         bv->bv_len = ss->pos;
 753         safe_string_free(ss);
 754         return(bv);
 755 }
 756
 757
 758 char *
 759 ldap_nameform2str( LDAPNameForm * nf )
 760 {
 761         struct berval bv;
 762         if (ldap_nameform2bv( nf, &bv ))
 763                 return(bv.bv_val);
 764         else
 765                 return NULL;
 766 }
 767
 768 struct berval *
 769 ldap_nameform2bv( LDAPNameForm * nf, struct berval *bv )
 770 {
 771         safe_string * ss;
 772
 773         ss = new_safe_string(256);
 774         if ( !ss )
 775                 return NULL;
 776
 777         print_literal(ss,"("/*)*/);
 778         print_whsp(ss);
 779
 780         print_numericoid(ss, nf->nf_oid);
 781         print_whsp(ss);
 782
 783         if ( nf->nf_names ) {
 784                 print_literal(ss,"NAME");
 785                 print_qdescrs(ss,nf->nf_names);
 786         }
 787
 788         if ( nf->nf_desc ) {
 789                 print_literal(ss,"DESC");
 790                 print_qdstring(ss,nf->nf_desc);
 791         }
 792
 793         if ( nf->nf_obsolete ) {
 794                 print_literal(ss, "OBSOLETE");
 795                 print_whsp(ss);
 796         }
 797
 798         print_literal(ss,"OC");
 799         print_whsp(ss);
 800         print_woid(ss,nf->nf_objectclass);
 801         print_whsp(ss);
 802
 803         print_literal(ss,"MUST");
 804         print_whsp(ss);
 805         print_oids(ss,nf->nf_at_oids_must);
 806         print_whsp(ss);
 807
 808
 809         if ( nf->nf_at_oids_may ) {
 810                 print_literal(ss,"MAY");
 811                 print_whsp(ss);
 812                 print_oids(ss,nf->nf_at_oids_may);
 813                 print_whsp(ss);
 814         }
 815
 816         print_whsp(ss);
 817         print_extensions(ss, nf->nf_extensions);
 818
 819         print_literal(ss, /*(*/")");
 820
 821         bv->bv_val = safe_strdup(ss);
 822         bv->bv_len = ss->pos;
 823         safe_string_free(ss);
 824         return(bv);
 825 }
 826
 827 char *
 828 ldap_attributetype2str( LDAPAttributeType * at )
 829 {
 830         struct berval bv;
 831         if (ldap_attributetype2bv( at, &bv ))
 832                 return(bv.bv_val);
 833         else
 834                 return NULL;
 835 }
 836
 837 struct berval *
 838 ldap_attributetype2bv(  LDAPAttributeType * at, struct berval *bv )
 839 {
 840         safe_string * ss;
 841
 842         ss = new_safe_string(256);
 843         if ( !ss )
 844                 return NULL;
 845
 846         print_literal(ss,"("/*)*/);
 847         print_whsp(ss);
 848
 849         print_numericoid(ss, at->at_oid);
 850         print_whsp(ss);
 851
 852         if ( at->at_names ) {
 853                 print_literal(ss,"NAME");
 854                 print_qdescrs(ss,at->at_names);
 855         }
 856
 857         if ( at->at_desc ) {
 858                 print_literal(ss,"DESC");
 859                 print_qdstring(ss,at->at_desc);
 860         }
 861
 862         if ( at->at_obsolete ) {
 863                 print_literal(ss, "OBSOLETE");
 864                 print_whsp(ss);
 865         }
 866
 867         if ( at->at_sup_oid ) {
 868                 print_literal(ss,"SUP");
 869                 print_woid(ss,at->at_sup_oid);
 870         }
 871
 872         if ( at->at_equality_oid ) {
 873                 print_literal(ss,"EQUALITY");
 874                 print_woid(ss,at->at_equality_oid);
 875         }
 876
 877         if ( at->at_ordering_oid ) {
 878                 print_literal(ss,"ORDERING");
 879                 print_woid(ss,at->at_ordering_oid);
 880         }
 881
 882         if ( at->at_substr_oid ) {
 883                 print_literal(ss,"SUBSTR");
 884                 print_woid(ss,at->at_substr_oid);
 885         }
 886
 887         if ( at->at_syntax_oid ) {
 888                 print_literal(ss,"SYNTAX");
 889                 print_whsp(ss);
 890                 print_noidlen(ss,at->at_syntax_oid,at->at_syntax_len);
 891                 print_whsp(ss);
 892         }
 893
 894         if ( at->at_single_value == LDAP_SCHEMA_YES ) {
 895                 print_literal(ss,"SINGLE-VALUE");
 896                 print_whsp(ss);
 897         }
 898
 899         if ( at->at_collective == LDAP_SCHEMA_YES ) {
 900                 print_literal(ss,"COLLECTIVE");
 901                 print_whsp(ss);
 902         }
 903
 904         if ( at->at_no_user_mod == LDAP_SCHEMA_YES ) {
 905                 print_literal(ss,"NO-USER-MODIFICATION");
 906                 print_whsp(ss);
 907         }
 908
 909         if ( at->at_usage != LDAP_SCHEMA_USER_APPLICATIONS ) {
 910                 print_literal(ss,"USAGE");
 911                 print_whsp(ss);
 912                 switch (at->at_usage) {
 913                 case LDAP_SCHEMA_DIRECTORY_OPERATION:
 914                         print_literal(ss,"directoryOperation");
 915                         break;
 916                 case LDAP_SCHEMA_DISTRIBUTED_OPERATION:
 917                         print_literal(ss,"distributedOperation");
 918                         break;
 919                 case LDAP_SCHEMA_DSA_OPERATION:
 920                         print_literal(ss,"dSAOperation");
 921                         break;
 922                 default:
 923                         print_literal(ss,"UNKNOWN");
 924                         break;
 925                 }
 926         }
 927
 928         print_whsp(ss);
 929
 930         print_extensions(ss, at->at_extensions);
 931
 932         print_literal(ss,/*(*/")");
 933
 934         bv->bv_val = safe_strdup(ss);
 935         bv->bv_len = ss->pos;
 936         safe_string_free(ss);
 937         return(bv);
 938 }
 939
 940 /*
 941  * Now come the parsers.  There is one parser for each entity type:
 942  * objectclasses, attributetypes, etc.
 943  *
 944  * Each of them is written as a recursive-descent parser, except that
 945  * none of them is really recursive.  But the idea is kept: there
 946  * is one routine per non-terminal that eithers gobbles lexical tokens
 947  * or calls lower-level routines, etc.
 948  *
 949  * The scanner is implemented in the routine get_token.  Actually,
 950  * get_token is more than a scanner and will return tokens that are
 951  * in fact non-terminals in the grammar.  So you can see the whole
 952  * approach as the combination of a low-level bottom-up recognizer
 953  * combined with a scanner and a number of top-down parsers.  Or just
 954  * consider that the real grammars recognized by the parsers are not
 955  * those of the standards.  As a matter of fact, our parsers are more
 956  * liberal than the spec when there is no ambiguity.
 957  *
 958  * The difference is pretty academic (modulo bugs or incorrect
 959  * interpretation of the specs).
 960  */
 961
 962 typedef enum tk_t {
 963         TK_NOENDQUOTE   = -2,
 964         TK_OUTOFMEM     = -1,
 965         TK_EOS          = 0,
 966         TK_UNEXPCHAR    = 1,
 967         TK_BAREWORD     = 2,
 968         TK_QDSTRING     = 3,
 969         TK_LEFTPAREN    = 4,
 970         TK_RIGHTPAREN   = 5,
 971         TK_DOLLAR       = 6,
 972         TK_QDESCR       = TK_QDSTRING
 973 } tk_t;
 974
 975 static tk_t
 976 get_token( const char ** sp, char ** token_val )
 977 {
 978         tk_t kind;
 979         const char * p;
 980         const char * q;
 981         char * res;
 982
 983         *token_val = NULL;
 984         switch (**sp) {
 985         case '\0':
 986                 kind = TK_EOS;
 987                 (*sp)++;
 988                 break;
 989         case '(':
 990                 kind = TK_LEFTPAREN;
 991                 (*sp)++;
 992                 break;
 993         case ')':
 994                 kind = TK_RIGHTPAREN;
 995                 (*sp)++;
 996                 break;
 997         case '$':
 998                 kind = TK_DOLLAR;
 999                 (*sp)++;
1000                 break;
1001         case '\'':
1002                 kind = TK_QDSTRING;
1003                 (*sp)++;
1004                 p = *sp;
1005                 while ( **sp != '\'' && **sp != '\0' )
1006                         (*sp)++;
1007                 if ( **sp == '\'' ) {
1008                         q = *sp;
1009                         res = LDAP_MALLOC(q-p+1);
1010                         if ( !res ) {
1011                                 kind = TK_OUTOFMEM;
1012                         } else {
1013                                 strncpy(res,p,q-p);
1014                                 res[q-p] = '\0';
1015                                 *token_val = res;
1016                         }
1017                         (*sp)++;
1018                 } else {
1019                         kind = TK_NOENDQUOTE;
1020                 }
1021                 break;
1022         default:
1023                 kind = TK_BAREWORD;
1024                 p = *sp;
1025                 while ( !LDAP_SPACE(**sp) &&
1026                         **sp != '(' &&
1027                         **sp != ')' &&
1028                         **sp != '$' &&
1029                         **sp != '\'' &&
1030                         **sp != '\0' )
1031                         (*sp)++;
1032                 q = *sp;
1033                 res = LDAP_MALLOC(q-p+1);
1034                 if ( !res ) {
1035                         kind = TK_OUTOFMEM;
1036                 } else {
1037                         strncpy(res,p,q-p);
1038                         res[q-p] = '\0';
1039                         *token_val = res;
1040                 }
1041                 break;
1042 /*              kind = TK_UNEXPCHAR; */
1043 /*              break; */
1044         }
1045
1046         return kind;
1047 }
1048
1049 /* Gobble optional whitespace */
1050 static void
1051 parse_whsp(const char **sp)
1052 {
1053         while (LDAP_SPACE(**sp))
1054                 (*sp)++;
1055 }
1056
1057 /* TBC:!!
1058  * General note for all parsers: to guarantee the algorithm halts they
1059  * must always advance the pointer even when an error is found.  For
1060  * this one is not that important since an error here is fatal at the
1061  * upper layers, but it is a simple strategy that will not get in
1062  * endless loops.
1063  */
1064
1065 /* Parse a sequence of dot-separated decimal strings */
1066 char *
1067 ldap_int_parse_numericoid(const char **sp, int *code, const int flags)
1068 {
1069         char * res = NULL;
1070         const char * start = *sp;
1071         int len;
1072         int quoted = 0;
1073
1074         /* Netscape puts the SYNTAX value in quotes (incorrectly) */
1075         if ( flags & LDAP_SCHEMA_ALLOW_QUOTED && **sp == '\'' ) {
1076                 quoted = 1;
1077                 (*sp)++;
1078                 start++;
1079         }
1080         /* Each iteration of this loop gets one decimal string */
1081         while (**sp) {
1082                 if ( !LDAP_DIGIT(**sp) ) {
1083                         /*
1084                          * Initial char is not a digit or char after dot is
1085                          * not a digit
1086                          */
1087                         *code = LDAP_SCHERR_NODIGIT;
1088                         return NULL;
1089                 }
1090                 (*sp)++;
1091                 while ( LDAP_DIGIT(**sp) )
1092                         (*sp)++;
1093                 if ( **sp != '.' )
1094                         break;
1095                 /* Otherwise, gobble the dot and loop again */
1096                 (*sp)++;
1097         }
1098         /* Now *sp points at the char past the numericoid. Perfect. */
1099         len = *sp - start;
1100         if ( flags & LDAP_SCHEMA_ALLOW_QUOTED && quoted ) {
1101                 if ( **sp == '\'' ) {
1102                         (*sp)++;
1103                 } else {
1104                         *code = LDAP_SCHERR_UNEXPTOKEN;
1105                         return NULL;
1106                 }
1107         }
1108         if (flags & LDAP_SCHEMA_SKIP) {
1109                 res = (char *)start;
1110         } else {
1111                 res = LDAP_MALLOC(len+1);
1112                 if (!res) {
1113                         *code = LDAP_SCHERR_OUTOFMEM;
1114                         return(NULL);
1115                 }
1116                 strncpy(res,start,len);
1117                 res[len] = '\0';
1118         }
1119         return(res);
1120 }
1121
1122 /* Parse a sequence of dot-separated decimal strings */
1123 int
1124 ldap_int_parse_ruleid(const char **sp, int *code, const int flags, int *ruleid)
1125 {
1126         *ruleid=0;
1127
1128         if ( !LDAP_DIGIT(**sp) ) {
1129                 *code = LDAP_SCHERR_NODIGIT;
1130                 return -1;
1131         }
1132         *ruleid = (**sp) - '0';
1133         (*sp)++;
1134
1135         while ( LDAP_DIGIT(**sp) ) {
1136                 *ruleid *= 10;
1137                 *ruleid += (**sp) - '0';
1138                 (*sp)++;
1139         }
1140
1141         return 0;
1142 }
1143
1144 /* Parse a qdescr or a list of them enclosed in () */
1145 static char **
1146 parse_qdescrs(const char **sp, int *code)
1147 {
1148         char ** res;
1149         char ** res1;
1150         tk_t kind;
1151         char * sval;
1152         int size;
1153         int pos;
1154
1155         parse_whsp(sp);
1156         kind = get_token(sp,&sval);
1157         if ( kind == TK_LEFTPAREN ) {
1158                 /* Let's presume there will be at least 2 entries */
1159                 size = 3;
1160                 res = LDAP_CALLOC(3,sizeof(char *));
1161                 if ( !res ) {
1162                         *code = LDAP_SCHERR_OUTOFMEM;
1163                         return NULL;
1164                 }
1165                 pos = 0;
1166                 while (1) {
1167                         parse_whsp(sp);
1168                         kind = get_token(sp,&sval);
1169                         if ( kind == TK_RIGHTPAREN )
1170                                 break;
1171                         if ( kind == TK_QDESCR ) {
1172                                 if ( pos == size-2 ) {
1173                                         size++;
1174                                         res1 = LDAP_REALLOC(res,size*sizeof(char *));
1175                                         if ( !res1 ) {
1176                                                 LDAP_VFREE(res);
1177                                                 LDAP_FREE(sval);
1178                                                 *code = LDAP_SCHERR_OUTOFMEM;
1179                                                 return(NULL);
1180                                         }
1181                                         res = res1;
1182                                 }
1183                                 res[pos++] = sval;
1184                                 res[pos] = NULL;
1185                                 parse_whsp(sp);
1186                         } else {
1187                                 LDAP_VFREE(res);
1188                                 LDAP_FREE(sval);
1189                                 *code = LDAP_SCHERR_UNEXPTOKEN;
1190                                 return(NULL);
1191                         }
1192                 }
1193                 parse_whsp(sp);
1194                 return(res);
1195         } else if ( kind == TK_QDESCR ) {
1196                 res = LDAP_CALLOC(2,sizeof(char *));
1197                 if ( !res ) {
1198                         *code = LDAP_SCHERR_OUTOFMEM;
1199                         return NULL;
1200                 }
1201                 res[0] = sval;
1202                 res[1] = NULL;
1203                 parse_whsp(sp);
1204                 return res;
1205         } else {
1206                 LDAP_FREE(sval);
1207                 *code = LDAP_SCHERR_BADNAME;
1208                 return NULL;
1209         }
1210 }
1211
1212 /* Parse a woid */
1213 static char *
1214 parse_woid(const char **sp, int *code)
1215 {
1216         char * sval;
1217         tk_t kind;
1218
1219         parse_whsp(sp);
1220         kind = get_token(sp, &sval);
1221         if ( kind != TK_BAREWORD ) {
1222                 LDAP_FREE(sval);
1223                 *code = LDAP_SCHERR_UNEXPTOKEN;
1224                 return NULL;
1225         }
1226         parse_whsp(sp);
1227         return sval;
1228 }
1229
1230 /* Parse a noidlen */
1231 static char *
1232 parse_noidlen(const char **sp, int *code, int *len, int allow_quoted)
1233 {
1234         char * sval;
1235         int quoted = 0;
1236
1237         *len = 0;
1238         /* Netscape puts the SYNTAX value in quotes (incorrectly) */
1239         if ( allow_quoted && **sp == '\'' ) {
1240                 quoted = 1;
1241                 (*sp)++;
1242         }
1243         sval = ldap_int_parse_numericoid(sp, code, 0);
1244         if ( !sval ) {
1245                 return NULL;
1246         }
1247         if ( **sp == '{' /*}*/ ) {
1248                 (*sp)++;
1249                 *len = atoi(*sp);
1250                 while ( LDAP_DIGIT(**sp) )
1251                         (*sp)++;
1252                 if ( **sp != /*{*/ '}' ) {
1253                         *code = LDAP_SCHERR_UNEXPTOKEN;
1254                         LDAP_FREE(sval);
1255                         return NULL;
1256                 }
1257                 (*sp)++;
1258         }
1259         if ( allow_quoted && quoted ) {
1260                 if ( **sp == '\'' ) {
1261                         (*sp)++;
1262                 } else {
1263                         *code = LDAP_SCHERR_UNEXPTOKEN;
1264                         LDAP_FREE(sval);
1265                         return NULL;
1266                 }
1267         }
1268         return sval;
1269 }
1270
1271 /*
1272  * Next routine will accept a qdstring in place of an oid if
1273  * allow_quoted is set.  This is necessary to interoperate with
1274  * Netscape Directory server that will improperly quote each oid (at
1275  * least those of the descr kind) in the SUP clause.
1276  */
1277
1278 /* Parse a woid or a $-separated list of them enclosed in () */
1279 static char **
1280 parse_oids(const char **sp, int *code, const int allow_quoted)
1281 {
1282         char ** res;
1283         char ** res1;
1284         tk_t kind;
1285         char * sval;
1286         int size;
1287         int pos;
1288
1289         /*
1290          * Strictly speaking, doing this here accepts whsp before the
1291          * ( at the begining of an oidlist, but this is harmless.  Also,
1292          * we are very liberal in what we accept as an OID.  Maybe
1293          * refine later.
1294          */
1295         parse_whsp(sp);
1296         kind = get_token(sp,&sval);
1297         if ( kind == TK_LEFTPAREN ) {
1298                 /* Let's presume there will be at least 2 entries */
1299                 size = 3;
1300                 res = LDAP_CALLOC(3,sizeof(char *));
1301                 if ( !res ) {
1302                         *code = LDAP_SCHERR_OUTOFMEM;
1303                         return NULL;
1304                 }
1305                 pos = 0;
1306                 parse_whsp(sp);
1307                 kind = get_token(sp,&sval);
1308                 if ( kind == TK_BAREWORD ||
1309                      ( allow_quoted && kind == TK_QDSTRING ) ) {
1310                         res[pos++] = sval;
1311                         res[pos] = NULL;
1312                 } else if ( kind == TK_RIGHTPAREN ) {
1313                         /* FIXME: be liberal in what we accept... */
1314                         parse_whsp(sp);
1315                         LDAP_FREE(res);
1316                         return NULL;
1317                 } else {
1318                         *code = LDAP_SCHERR_UNEXPTOKEN;
1319                         LDAP_FREE(sval);
1320                         LDAP_VFREE(res);
1321                         return NULL;
1322                 }
1323                 parse_whsp(sp);
1324                 while (1) {
1325                         kind = get_token(sp,&sval);
1326                         if ( kind == TK_RIGHTPAREN )
1327                                 break;
1328                         if ( kind == TK_DOLLAR ) {
1329                                 parse_whsp(sp);
1330                                 kind = get_token(sp,&sval);
1331                                 if ( kind == TK_BAREWORD ||
1332                                      ( allow_quoted &&
1333                                        kind == TK_QDSTRING ) ) {
1334                                         if ( pos == size-2 ) {
1335                                                 size++;
1336                                                 res1 = LDAP_REALLOC(res,size*sizeof(char *));
1337                                                 if ( !res1 ) {
1338                                                         LDAP_FREE(sval);
1339                                                         LDAP_VFREE(res);
1340                                                         *code = LDAP_SCHERR_OUTOFMEM;
1341                                                         return(NULL);
1342                                                 }
1343                                                 res = res1;
1344                                         }
1345                                         res[pos++] = sval;
1346                                         res[pos] = NULL;
1347                                 } else {
1348                                         *code = LDAP_SCHERR_UNEXPTOKEN;
1349                                         LDAP_FREE(sval);
1350                                         LDAP_VFREE(res);
1351                                         return NULL;
1352                                 }
1353                                 parse_whsp(sp);
1354                         } else {
1355                                 *code = LDAP_SCHERR_UNEXPTOKEN;
1356                                 LDAP_FREE(sval);
1357                                 LDAP_VFREE(res);
1358                                 return NULL;
1359                         }
1360                 }
1361                 parse_whsp(sp);
1362                 return(res);
1363         } else if ( kind == TK_BAREWORD ||
1364                     ( allow_quoted && kind == TK_QDSTRING ) ) {
1365                 res = LDAP_CALLOC(2,sizeof(char *));
1366                 if ( !res ) {
1367                         LDAP_FREE(sval);
1368                         *code = LDAP_SCHERR_OUTOFMEM;
1369                         return NULL;
1370                 }
1371                 res[0] = sval;
1372                 res[1] = NULL;
1373                 parse_whsp(sp);
1374                 return res;
1375         } else {
1376                 LDAP_FREE(sval);
1377                 *code = LDAP_SCHERR_BADNAME;
1378                 return NULL;
1379         }
1380 }
1381
1382 static int
1383 add_extension(LDAPSchemaExtensionItem ***extensions,
1384               char * name, char ** values)
1385 {
1386         int n;
1387         LDAPSchemaExtensionItem **tmp, *ext;
1388
1389         ext = LDAP_CALLOC(1, sizeof(LDAPSchemaExtensionItem));
1390         if ( !ext )
1391                 return 1;
1392         ext->lsei_name = name;
1393         ext->lsei_values = values;
1394
1395         if ( !*extensions ) {
1396                 *extensions =
1397                   LDAP_CALLOC(2, sizeof(LDAPSchemaExtensionItem *));
1398                 if ( !*extensions )
1399                   return 1;
1400                 n = 0;
1401         } else {
1402                 for ( n=0; (*extensions)[n] != NULL; n++ )
1403                         ;
1404                 tmp = LDAP_REALLOC(*extensions,
1405                                    (n+2)*sizeof(LDAPSchemaExtensionItem *));
1406                 if ( !tmp )
1407                         return 1;
1408                 *extensions = tmp;
1409         }
1410         (*extensions)[n] = ext;
1411         (*extensions)[n+1] = NULL;
1412         return 0;
1413 }
1414
1415 static void
1416 free_extensions(LDAPSchemaExtensionItem **extensions)
1417 {
1418         LDAPSchemaExtensionItem **ext;
1419
1420         if ( extensions ) {
1421                 for ( ext = extensions; *ext != NULL; ext++ ) {
1422                         LDAP_FREE((*ext)->lsei_name);
1423                         LDAP_VFREE((*ext)->lsei_values);
1424                         LDAP_FREE(*ext);
1425                 }
1426                 LDAP_FREE(extensions);
1427         }
1428 }
1429
1430 void
1431 ldap_syntax_free( LDAPSyntax * syn )
1432 {
1433         LDAP_FREE(syn->syn_oid);
1434         if (syn->syn_names) LDAP_VFREE(syn->syn_names);
1435         if (syn->syn_desc) LDAP_FREE(syn->syn_desc);
1436         free_extensions(syn->syn_extensions);
1437         LDAP_FREE(syn);
1438 }
1439
1440 LDAPSyntax *
1441 ldap_str2syntax( LDAP_CONST char * s,
1442         int * code,
1443         LDAP_CONST char ** errp,
1444         LDAP_CONST unsigned flags )
1445 {
1446         tk_t kind;
1447         const char * ss = s;
1448         char * sval;
1449         int seen_name = 0;
1450         int seen_desc = 0;
1451         LDAPSyntax * syn;
1452         char ** ext_vals;
1453
1454         if ( !s ) {
1455                 *code = LDAP_SCHERR_EMPTY;
1456                 *errp = "";
1457                 return NULL;
1458         }
1459
1460         *errp = s;
1461         syn = LDAP_CALLOC(1,sizeof(LDAPSyntax));
1462
1463         if ( !syn ) {
1464                 *code = LDAP_SCHERR_OUTOFMEM;
1465                 return NULL;
1466         }
1467
1468         kind = get_token(&ss,&sval);
1469         if ( kind != TK_LEFTPAREN ) {
1470                 LDAP_FREE(sval);
1471                 *code = LDAP_SCHERR_NOLEFTPAREN;
1472                 ldap_syntax_free(syn);
1473                 return NULL;
1474         }
1475
1476         parse_whsp(&ss);
1477         syn->syn_oid = ldap_int_parse_numericoid(&ss,code,0);
1478         if ( !syn->syn_oid ) {
1479                 *errp = ss;
1480                 ldap_syntax_free(syn);
1481                 return NULL;
1482         }
1483         parse_whsp(&ss);
1484
1485         /*
1486          * Beyond this point we will be liberal and accept the items
1487          * in any order.
1488          */
1489         while (1) {
1490                 kind = get_token(&ss,&sval);
1491                 switch (kind) {
1492                 case TK_EOS:
1493                         *code = LDAP_SCHERR_NORIGHTPAREN;
1494                         *errp = ss;
1495                         ldap_syntax_free(syn);
1496                         return NULL;
1497                 case TK_RIGHTPAREN:
1498                         return syn;
1499                 case TK_BAREWORD:
1500                         if ( !strcasecmp(sval,"NAME") ) {
1501                                 LDAP_FREE(sval);
1502                                 if ( seen_name ) {
1503                                         *code = LDAP_SCHERR_DUPOPT;
1504                                         *errp = ss;
1505                                         ldap_syntax_free(syn);
1506                                         return(NULL);
1507                                 }
1508                                 seen_name = 1;
1509                                 syn->syn_names = parse_qdescrs(&ss,code);
1510                                 if ( !syn->syn_names ) {
1511                                         if ( *code != LDAP_SCHERR_OUTOFMEM )
1512                                                 *code = LDAP_SCHERR_BADNAME;
1513                                         *errp = ss;
1514                                         ldap_syntax_free(syn);
1515                                         return NULL;
1516                                 }
1517                         } else if ( !strcasecmp(sval,"DESC") ) {
1518                                 LDAP_FREE(sval);
1519                                 if ( seen_desc ) {
1520                                         *code = LDAP_SCHERR_DUPOPT;
1521                                         *errp = ss;
1522                                         ldap_syntax_free(syn);
1523                                         return(NULL);
1524                                 }
1525                                 seen_desc = 1;
1526                                 parse_whsp(&ss);
1527                                 kind = get_token(&ss,&sval);
1528                                 if ( kind != TK_QDSTRING ) {
1529                                         *code = LDAP_SCHERR_UNEXPTOKEN;
1530                                         *errp = ss;
1531                                         LDAP_FREE(sval);
1532                                         ldap_syntax_free(syn);
1533                                         return NULL;
1534                                 }
1535                                 syn->syn_desc = sval;
1536                                 parse_whsp(&ss);
1537                         } else if ( sval[0] == 'X' && sval[1] == '-' ) {
1538                                 /* Should be parse_qdstrings */
1539                                 ext_vals = parse_qdescrs(&ss, code);
1540                                 if ( !ext_vals ) {
1541                                         *errp = ss;
1542                                         ldap_syntax_free(syn);
1543                                         return NULL;
1544                                 }
1545                                 if ( add_extension(&syn->syn_extensions,
1546                                                     sval, ext_vals) ) {
1547                                         *code = LDAP_SCHERR_OUTOFMEM;
1548                                         *errp = ss;
1549                                         LDAP_FREE(sval);
1550                                         ldap_syntax_free(syn);
1551                                         return NULL;
1552                                 }
1553                         } else {
1554                                 *code = LDAP_SCHERR_UNEXPTOKEN;
1555                                 *errp = ss;
1556                                 LDAP_FREE(sval);
1557                                 ldap_syntax_free(syn);
1558                                 return NULL;
1559                         }
1560                         break;
1561                 default:
1562                         *code = LDAP_SCHERR_UNEXPTOKEN;
1563                         *errp = ss;
1564                         LDAP_FREE(sval);
1565                         ldap_syntax_free(syn);
1566                         return NULL;
1567                 }
1568         }
1569 }
1570
1571 void
1572 ldap_matchingrule_free( LDAPMatchingRule * mr )
1573 {
1574         LDAP_FREE(mr->mr_oid);
1575         if (mr->mr_names) LDAP_VFREE(mr->mr_names);
1576         if (mr->mr_desc) LDAP_FREE(mr->mr_desc);
1577         if (mr->mr_syntax_oid) LDAP_FREE(mr->mr_syntax_oid);
1578         free_extensions(mr->mr_extensions);
1579         LDAP_FREE(mr);
1580 }
1581
1582 LDAPMatchingRule *
1583 ldap_str2matchingrule( LDAP_CONST char * s,
1584         int * code,
1585         LDAP_CONST char ** errp,
1586         LDAP_CONST unsigned flags )
1587 {
1588         tk_t kind;
1589         const char * ss = s;
1590         char * sval;
1591         int seen_name = 0;
1592         int seen_desc = 0;
1593         int seen_obsolete = 0;
1594         int seen_syntax = 0;
1595         LDAPMatchingRule * mr;
1596         char ** ext_vals;
1597         const char * savepos;
1598
1599         if ( !s ) {
1600                 *code = LDAP_SCHERR_EMPTY;
1601                 *errp = "";
1602                 return NULL;
1603         }
1604
1605         *errp = s;
1606         mr = LDAP_CALLOC(1,sizeof(LDAPMatchingRule));
1607
1608         if ( !mr ) {
1609                 *code = LDAP_SCHERR_OUTOFMEM;
1610                 return NULL;
1611         }
1612
1613         kind = get_token(&ss,&sval);
1614         if ( kind != TK_LEFTPAREN ) {
1615                 *code = LDAP_SCHERR_NOLEFTPAREN;
1616                 LDAP_FREE(sval);
1617                 ldap_matchingrule_free(mr);
1618                 return NULL;
1619         }
1620
1621         parse_whsp(&ss);
1622         savepos = ss;
1623         mr->mr_oid = ldap_int_parse_numericoid(&ss,code,flags);
1624         if ( !mr->mr_oid ) {
1625                 if ( flags & LDAP_SCHEMA_ALLOW_NO_OID ) {
1626                         /* Backtracking */
1627                         ss = savepos;
1628                         kind = get_token(&ss,&sval);
1629                         if ( kind == TK_BAREWORD ) {
1630                                 if ( !strcasecmp(sval, "NAME") ||
1631                                      !strcasecmp(sval, "DESC") ||
1632                                      !strcasecmp(sval, "OBSOLETE") ||
1633                                      !strcasecmp(sval, "SYNTAX") ||
1634                                      !strncasecmp(sval, "X-", 2) ) {
1635                                         /* Missing OID, backtrack */
1636                                         ss = savepos;
1637                                 } else {
1638                                         /* Non-numerical OID, ignore */
1639                                 }
1640                         }
1641                         LDAP_FREE(sval);
1642                 } else {
1643                         *errp = ss;
1644                         ldap_matchingrule_free(mr);
1645                         return NULL;
1646                 }
1647         }
1648         parse_whsp(&ss);
1649
1650         /*
1651          * Beyond this point we will be liberal and accept the items
1652          * in any order.
1653          */
1654         while (1) {
1655                 kind = get_token(&ss,&sval);
1656                 switch (kind) {
1657                 case TK_EOS:
1658                         *code = LDAP_SCHERR_NORIGHTPAREN;
1659                         *errp = ss;
1660                         ldap_matchingrule_free(mr);
1661                         return NULL;
1662                 case TK_RIGHTPAREN:
1663                         if( !seen_syntax ) {
1664                                 *code = LDAP_SCHERR_MISSING;
1665                                 ldap_matchingrule_free(mr);
1666                                 return NULL;
1667                         }
1668                         return mr;
1669                 case TK_BAREWORD:
1670                         if ( !strcasecmp(sval,"NAME") ) {
1671                                 LDAP_FREE(sval);
1672                                 if ( seen_name ) {
1673                                         *code = LDAP_SCHERR_DUPOPT;
1674                                         *errp = ss;
1675                                         ldap_matchingrule_free(mr);
1676                                         return(NULL);
1677                                 }
1678                                 seen_name = 1;
1679                                 mr->mr_names = parse_qdescrs(&ss,code);
1680                                 if ( !mr->mr_names ) {
1681                                         if ( *code != LDAP_SCHERR_OUTOFMEM )
1682                                                 *code = LDAP_SCHERR_BADNAME;
1683                                         *errp = ss;
1684                                         ldap_matchingrule_free(mr);
1685                                         return NULL;
1686                                 }
1687                         } else if ( !strcasecmp(sval,"DESC") ) {
1688                                 LDAP_FREE(sval);
1689                                 if ( seen_desc ) {
1690                                         *code = LDAP_SCHERR_DUPOPT;
1691                                         *errp = ss;
1692                                         ldap_matchingrule_free(mr);
1693                                         return(NULL);
1694                                 }
1695                                 seen_desc = 1;
1696                                 parse_whsp(&ss);
1697                                 kind = get_token(&ss,&sval);
1698                                 if ( kind != TK_QDSTRING ) {
1699                                         *code = LDAP_SCHERR_UNEXPTOKEN;
1700                                         *errp = ss;
1701                                         LDAP_FREE(sval);
1702                                         ldap_matchingrule_free(mr);
1703                                         return NULL;
1704                                 }
1705                                 mr->mr_desc = sval;
1706                                 parse_whsp(&ss);
1707                         } else if ( !strcasecmp(sval,"OBSOLETE") ) {
1708                                 LDAP_FREE(sval);
1709                                 if ( seen_obsolete ) {
1710                                         *code = LDAP_SCHERR_DUPOPT;
1711                                         *errp = ss;
1712                                         ldap_matchingrule_free(mr);
1713                                         return(NULL);
1714                                 }
1715                                 seen_obsolete = 1;
1716                                 mr->mr_obsolete = LDAP_SCHEMA_YES;
1717                                 parse_whsp(&ss);
1718                         } else if ( !strcasecmp(sval,"SYNTAX") ) {
1719                                 LDAP_FREE(sval);
1720                                 if ( seen_syntax ) {
1721                                         *code = LDAP_SCHERR_DUPOPT;
1722                                         *errp = ss;
1723                                         ldap_matchingrule_free(mr);
1724                                         return(NULL);
1725                                 }
1726                                 seen_syntax = 1;
1727                                 parse_whsp(&ss);
1728                                 mr->mr_syntax_oid =
1729                                         ldap_int_parse_numericoid(&ss,code,flags);
1730                                 if ( !mr->mr_syntax_oid ) {
1731                                         *errp = ss;
1732                                         ldap_matchingrule_free(mr);
1733                                         return NULL;
1734                                 }
1735                                 parse_whsp(&ss);
1736                         } else if ( sval[0] == 'X' && sval[1] == '-' ) {
1737                                 /* Should be parse_qdstrings */
1738                                 ext_vals = parse_qdescrs(&ss, code);
1739                                 if ( !ext_vals ) {
1740                                         *errp = ss;
1741                                         ldap_matchingrule_free(mr);
1742                                         return NULL;
1743                                 }
1744                                 if ( add_extension(&mr->mr_extensions,
1745                                                     sval, ext_vals) ) {
1746                                         *code = LDAP_SCHERR_OUTOFMEM;
1747                                         *errp = ss;
1748                                         LDAP_FREE(sval);
1749                                         ldap_matchingrule_free(mr);
1750                                         return NULL;
1751                                 }
1752                         } else {
1753                                 *code = LDAP_SCHERR_UNEXPTOKEN;
1754                                 *errp = ss;
1755                                 LDAP_FREE(sval);
1756                                 ldap_matchingrule_free(mr);
1757                                 return NULL;
1758                         }
1759                         break;
1760                 default:
1761                         *code = LDAP_SCHERR_UNEXPTOKEN;
1762                         *errp = ss;
1763                         LDAP_FREE(sval);
1764                         ldap_matchingrule_free(mr);
1765                         return NULL;
1766                 }
1767         }
1768 }
1769
1770 void
1771 ldap_matchingruleuse_free( LDAPMatchingRuleUse * mru )
1772 {
1773         LDAP_FREE(mru->mru_oid);
1774         if (mru->mru_names) LDAP_VFREE(mru->mru_names);
1775         if (mru->mru_desc) LDAP_FREE(mru->mru_desc);
1776         if (mru->mru_applies_oids) LDAP_VFREE(mru->mru_applies_oids);
1777         free_extensions(mru->mru_extensions);
1778         LDAP_FREE(mru);
1779 }
1780
1781 LDAPMatchingRuleUse *
1782 ldap_str2matchingruleuse( LDAP_CONST char * s,
1783         int * code,
1784         LDAP_CONST char ** errp,
1785         LDAP_CONST unsigned flags )
1786 {
1787         tk_t kind;
1788         const char * ss = s;
1789         char * sval;
1790         int seen_name = 0;
1791         int seen_desc = 0;
1792         int seen_obsolete = 0;
1793         int seen_applies = 0;
1794         LDAPMatchingRuleUse * mru;
1795         char ** ext_vals;
1796         const char * savepos;
1797
1798         if ( !s ) {
1799                 *code = LDAP_SCHERR_EMPTY;
1800                 *errp = "";
1801                 return NULL;
1802         }
1803
1804         *errp = s;
1805         mru = LDAP_CALLOC(1,sizeof(LDAPMatchingRuleUse));
1806
1807         if ( !mru ) {
1808                 *code = LDAP_SCHERR_OUTOFMEM;
1809                 return NULL;
1810         }
1811
1812         kind = get_token(&ss,&sval);
1813         if ( kind != TK_LEFTPAREN ) {
1814                 *code = LDAP_SCHERR_NOLEFTPAREN;
1815                 LDAP_FREE(sval);
1816                 ldap_matchingruleuse_free(mru);
1817                 return NULL;
1818         }
1819
1820         parse_whsp(&ss);
1821         savepos = ss;
1822         mru->mru_oid = ldap_int_parse_numericoid(&ss,code,flags);
1823         if ( !mru->mru_oid ) {
1824                 if ( flags & LDAP_SCHEMA_ALLOW_NO_OID ) {
1825                         /* Backtracking */
1826                         ss = savepos;
1827                         kind = get_token(&ss,&sval);
1828                         if ( kind == TK_BAREWORD ) {
1829                                 if ( !strcasecmp(sval, "NAME") ||
1830                                      !strcasecmp(sval, "DESC") ||
1831                                      !strcasecmp(sval, "OBSOLETE") ||
1832                                      !strcasecmp(sval, "APPLIES") ||
1833                                      !strncasecmp(sval, "X-", 2) ) {
1834                                         /* Missing OID, backtrack */
1835                                         ss = savepos;
1836                                 } else {
1837                                         /* Non-numerical OID, ignore */
1838                                 }
1839                         }
1840                         LDAP_FREE(sval);
1841                 } else {
1842                         *errp = ss;
1843                         ldap_matchingruleuse_free(mru);
1844                         return NULL;
1845                 }
1846         }
1847         parse_whsp(&ss);
1848
1849         /*
1850          * Beyond this point we will be liberal and accept the items
1851          * in any order.
1852          */
1853         while (1) {
1854                 kind = get_token(&ss,&sval);
1855                 switch (kind) {
1856                 case TK_EOS:
1857                         *code = LDAP_SCHERR_NORIGHTPAREN;
1858                         *errp = ss;
1859                         ldap_matchingruleuse_free(mru);
1860                         return NULL;
1861                 case TK_RIGHTPAREN:
1862                         if( !seen_applies ) {
1863                                 *code = LDAP_SCHERR_MISSING;
1864                                 ldap_matchingruleuse_free(mru);
1865                                 return NULL;
1866                         }
1867                         return mru;
1868                 case TK_BAREWORD:
1869                         if ( !strcasecmp(sval,"NAME") ) {
1870                                 LDAP_FREE(sval);
1871                                 if ( seen_name ) {
1872                                         *code = LDAP_SCHERR_DUPOPT;
1873                                         *errp = ss;
1874                                         ldap_matchingruleuse_free(mru);
1875                                         return(NULL);
1876                                 }
1877                                 seen_name = 1;
1878                                 mru->mru_names = parse_qdescrs(&ss,code);
1879                                 if ( !mru->mru_names ) {
1880                                         if ( *code != LDAP_SCHERR_OUTOFMEM )
1881                                                 *code = LDAP_SCHERR_BADNAME;
1882                                         *errp = ss;
1883                                         ldap_matchingruleuse_free(mru);
1884                                         return NULL;
1885                                 }
1886                         } else if ( !strcasecmp(sval,"DESC") ) {
1887                                 LDAP_FREE(sval);
1888                                 if ( seen_desc ) {
1889                                         *code = LDAP_SCHERR_DUPOPT;
1890                                         *errp = ss;
1891                                         ldap_matchingruleuse_free(mru);
1892                                         return(NULL);
1893                                 }
1894                                 seen_desc = 1;
1895                                 parse_whsp(&ss);
1896                                 kind = get_token(&ss,&sval);
1897                                 if ( kind != TK_QDSTRING ) {
1898                                         *code = LDAP_SCHERR_UNEXPTOKEN;
1899                                         *errp = ss;
1900                                         LDAP_FREE(sval);
1901                                         ldap_matchingruleuse_free(mru);
1902                                         return NULL;
1903                                 }
1904                                 mru->mru_desc = sval;
1905                                 parse_whsp(&ss);
1906                         } else if ( !strcasecmp(sval,"OBSOLETE") ) {
1907                                 LDAP_FREE(sval);
1908                                 if ( seen_obsolete ) {
1909                                         *code = LDAP_SCHERR_DUPOPT;
1910                                         *errp = ss;
1911                                         ldap_matchingruleuse_free(mru);
1912                                         return(NULL);
1913                                 }
1914                                 seen_obsolete = 1;
1915                                 mru->mru_obsolete = LDAP_SCHEMA_YES;
1916                                 parse_whsp(&ss);
1917                         } else if ( !strcasecmp(sval,"APPLIES") ) {
1918                                 LDAP_FREE(sval);
1919                                 if ( seen_applies ) {
1920                                         *code = LDAP_SCHERR_DUPOPT;
1921                                         *errp = ss;
1922                                         ldap_matchingruleuse_free(mru);
1923                                         return(NULL);
1924                                 }
1925                                 seen_applies = 1;
1926                                 mru->mru_applies_oids = parse_oids(&ss,
1927                                                              code,
1928                                                              flags);
1929                                 if ( !mru->mru_applies_oids && *code != LDAP_SUCCESS ) {
1930                                         *errp = ss;
1931                                         ldap_matchingruleuse_free(mru);
1932                                         return NULL;
1933                                 }
1934                         } else if ( sval[0] == 'X' && sval[1] == '-' ) {
1935                                 /* Should be parse_qdstrings */
1936                                 ext_vals = parse_qdescrs(&ss, code);
1937                                 if ( !ext_vals ) {
1938                                         *errp = ss;
1939                                         ldap_matchingruleuse_free(mru);
1940                                         return NULL;
1941                                 }
1942                                 if ( add_extension(&mru->mru_extensions,
1943                                                     sval, ext_vals) ) {
1944                                         *code = LDAP_SCHERR_OUTOFMEM;
1945                                         *errp = ss;
1946                                         LDAP_FREE(sval);
1947                                         ldap_matchingruleuse_free(mru);
1948                                         return NULL;
1949                                 }
1950                         } else {
1951                                 *code = LDAP_SCHERR_UNEXPTOKEN;
1952                                 *errp = ss;
1953                                 LDAP_FREE(sval);
1954                                 ldap_matchingruleuse_free(mru);
1955                                 return NULL;
1956                         }
1957                         break;
1958                 default:
1959                         *code = LDAP_SCHERR_UNEXPTOKEN;
1960                         *errp = ss;
1961                         LDAP_FREE(sval);
1962                         ldap_matchingruleuse_free(mru);
1963                         return NULL;
1964                 }
1965         }
1966 }
1967
1968 void
1969 ldap_attributetype_free(LDAPAttributeType * at)
1970 {
1971         LDAP_FREE(at->at_oid);
1972         if (at->at_names) LDAP_VFREE(at->at_names);
1973         if (at->at_desc) LDAP_FREE(at->at_desc);
1974         if (at->at_sup_oid) LDAP_FREE(at->at_sup_oid);
1975         if (at->at_equality_oid) LDAP_FREE(at->at_equality_oid);
1976         if (at->at_ordering_oid) LDAP_FREE(at->at_ordering_oid);
1977         if (at->at_substr_oid) LDAP_FREE(at->at_substr_oid);
1978         if (at->at_syntax_oid) LDAP_FREE(at->at_syntax_oid);
1979         free_extensions(at->at_extensions);
1980         LDAP_FREE(at);
1981 }
1982
1983 LDAPAttributeType *
1984 ldap_str2attributetype( LDAP_CONST char * s,
1985         int * code,
1986         LDAP_CONST char ** errp,
1987         LDAP_CONST unsigned flags )
1988 {
1989         tk_t kind;
1990         const char * ss = s;
1991         char * sval;
1992         int seen_name = 0;
1993         int seen_desc = 0;
1994         int seen_obsolete = 0;
1995         int seen_sup = 0;
1996         int seen_equality = 0;
1997         int seen_ordering = 0;
1998         int seen_substr = 0;
1999         int seen_syntax = 0;
2000         int seen_usage = 0;
2001         LDAPAttributeType * at;
2002         char ** ext_vals;
2003         const char * savepos;
2004
2005         if ( !s ) {
2006                 *code = LDAP_SCHERR_EMPTY;
2007                 *errp = "";
2008                 return NULL;
2009         }
2010
2011         *errp = s;
2012         at = LDAP_CALLOC(1,sizeof(LDAPAttributeType));
2013
2014         if ( !at ) {
2015                 *code = LDAP_SCHERR_OUTOFMEM;
2016                 return NULL;
2017         }
2018
2019         kind = get_token(&ss,&sval);
2020         if ( kind != TK_LEFTPAREN ) {
2021                 *code = LDAP_SCHERR_NOLEFTPAREN;
2022                 LDAP_FREE(sval);
2023                 ldap_attributetype_free(at);
2024                 return NULL;
2025         }
2026
2027         /*
2028          * Definitions MUST begin with an OID in the numericoid format.
2029          * However, this routine is used by clients to parse the response
2030          * from servers and very well known servers will provide an OID
2031          * in the wrong format or even no OID at all.  We do our best to
2032          * extract info from those servers.
2033          */
2034         parse_whsp(&ss);
2035         savepos = ss;
2036         at->at_oid = ldap_int_parse_numericoid(&ss,code,0);
2037         if ( !at->at_oid ) {
2038                 if ( ( flags & ( LDAP_SCHEMA_ALLOW_NO_OID
2039                                 | LDAP_SCHEMA_ALLOW_OID_MACRO ) )
2040                             && (ss == savepos) ) {
2041                         /* Backtracking */
2042                         ss = savepos;
2043                         kind = get_token(&ss,&sval);
2044                         if ( kind == TK_BAREWORD ) {
2045                                 if ( !strcasecmp(sval, "NAME") ||
2046                                      !strcasecmp(sval, "DESC") ||
2047                                      !strcasecmp(sval, "OBSOLETE") ||
2048                                      !strcasecmp(sval, "SUP") ||
2049                                      !strcasecmp(sval, "EQUALITY") ||
2050                                      !strcasecmp(sval, "ORDERING") ||
2051                                      !strcasecmp(sval, "SUBSTR") ||
2052                                      !strcasecmp(sval, "SYNTAX") ||
2053                                      !strcasecmp(sval, "SINGLE-VALUE") ||
2054                                      !strcasecmp(sval, "COLLECTIVE") ||
2055                                      !strcasecmp(sval, "NO-USER-MODIFICATION") ||
2056                                      !strcasecmp(sval, "USAGE") ||
2057                                      !strncasecmp(sval, "X-", 2) ) {
2058                                         /* Missing OID, backtrack */
2059                                         ss = savepos;
2060                                 } else if ( flags
2061                                         & LDAP_SCHEMA_ALLOW_OID_MACRO) {
2062                                         /* Non-numerical OID ... */
2063                                         int len = ss-savepos;
2064                                         at->at_oid = LDAP_MALLOC(len+1);
2065                                         strncpy(at->at_oid, savepos, len);
2066                                         at->at_oid[len] = 0;
2067                                 }
2068                         }
2069                         LDAP_FREE(sval);
2070                 } else {
2071                         *errp = ss;
2072                         ldap_attributetype_free(at);
2073                         return NULL;
2074                 }
2075         }
2076         parse_whsp(&ss);
2077
2078         /*
2079          * Beyond this point we will be liberal and accept the items
2080          * in any order.
2081          */
2082         while (1) {
2083                 kind = get_token(&ss,&sval);
2084                 switch (kind) {
2085                 case TK_EOS:
2086                         *code = LDAP_SCHERR_NORIGHTPAREN;
2087                         *errp = ss;
2088                         ldap_attributetype_free(at);
2089                         return NULL;
2090                 case TK_RIGHTPAREN:
2091                         return at;
2092                 case TK_BAREWORD:
2093                         if ( !strcasecmp(sval,"NAME") ) {
2094                                 LDAP_FREE(sval);
2095                                 if ( seen_name ) {
2096                                         *code = LDAP_SCHERR_DUPOPT;
2097                                         *errp = ss;
2098                                         ldap_attributetype_free(at);
2099                                         return(NULL);
2100                                 }
2101                                 seen_name = 1;
2102                                 at->at_names = parse_qdescrs(&ss,code);
2103                                 if ( !at->at_names ) {
2104                                         if ( *code != LDAP_SCHERR_OUTOFMEM )
2105                                                 *code = LDAP_SCHERR_BADNAME;
2106                                         *errp = ss;
2107                                         ldap_attributetype_free(at);
2108                                         return NULL;
2109                                 }
2110                         } else if ( !strcasecmp(sval,"DESC") ) {
2111                                 LDAP_FREE(sval);
2112                                 if ( seen_desc ) {
2113                                         *code = LDAP_SCHERR_DUPOPT;
2114                                         *errp = ss;
2115                                         ldap_attributetype_free(at);
2116                                         return(NULL);
2117                                 }
2118                                 seen_desc = 1;
2119                                 parse_whsp(&ss);
2120                                 kind = get_token(&ss,&sval);
2121                                 if ( kind != TK_QDSTRING ) {
2122                                         *code = LDAP_SCHERR_UNEXPTOKEN;
2123                                         *errp = ss;
2124                                         LDAP_FREE(sval);
2125                                         ldap_attributetype_free(at);
2126                                         return NULL;
2127                                 }
2128                                 at->at_desc = sval;
2129                                 parse_whsp(&ss);
2130                         } else if ( !strcasecmp(sval,"OBSOLETE") ) {
2131                                 LDAP_FREE(sval);
2132                                 if ( seen_obsolete ) {
2133                                         *code = LDAP_SCHERR_DUPOPT;
2134                                         *errp = ss;
2135                                         ldap_attributetype_free(at);
2136                                         return(NULL);
2137                                 }
2138                                 seen_obsolete = 1;
2139                                 at->at_obsolete = LDAP_SCHEMA_YES;
2140                                 parse_whsp(&ss);
2141                         } else if ( !strcasecmp(sval,"SUP") ) {
2142                                 LDAP_FREE(sval);
2143                                 if ( seen_sup ) {
2144                                         *code = LDAP_SCHERR_DUPOPT;
2145                                         *errp = ss;
2146                                         ldap_attributetype_free(at);
2147                                         return(NULL);
2148                                 }
2149                                 seen_sup = 1;
2150                                 at->at_sup_oid = parse_woid(&ss,code);
2151                                 if ( !at->at_sup_oid ) {
2152                                         *errp = ss;
2153                                         ldap_attributetype_free(at);
2154                                         return NULL;
2155                                 }
2156                         } else if ( !strcasecmp(sval,"EQUALITY") ) {
2157                                 LDAP_FREE(sval);
2158                                 if ( seen_equality ) {
2159                                         *code = LDAP_SCHERR_DUPOPT;
2160                                         *errp = ss;
2161                                         ldap_attributetype_free(at);
2162                                         return(NULL);
2163                                 }
2164                                 seen_equality = 1;
2165                                 at->at_equality_oid = parse_woid(&ss,code);
2166                                 if ( !at->at_equality_oid ) {
2167                                         *errp = ss;
2168                                         ldap_attributetype_free(at);
2169                                         return NULL;
2170                                 }
2171                         } else if ( !strcasecmp(sval,"ORDERING") ) {
2172                                 LDAP_FREE(sval);
2173                                 if ( seen_ordering ) {
2174                                         *code = LDAP_SCHERR_DUPOPT;
2175                                         *errp = ss;
2176                                         ldap_attributetype_free(at);
2177                                         return(NULL);
2178                                 }
2179                                 seen_ordering = 1;
2180                                 at->at_ordering_oid = parse_woid(&ss,code);
2181                                 if ( !at->at_ordering_oid ) {
2182                                         *errp = ss;
2183                                         ldap_attributetype_free(at);
2184                                         return NULL;
2185                                 }
2186                         } else if ( !strcasecmp(sval,"SUBSTR") ) {
2187                                 LDAP_FREE(sval);
2188                                 if ( seen_substr ) {
2189                                         *code = LDAP_SCHERR_DUPOPT;
2190                                         *errp = ss;
2191                                         ldap_attributetype_free(at);
2192                                         return(NULL);
2193                                 }
2194                                 seen_substr = 1;
2195                                 at->at_substr_oid = parse_woid(&ss,code);
2196                                 if ( !at->at_substr_oid ) {
2197                                         *errp = ss;
2198                                         ldap_attributetype_free(at);
2199                                         return NULL;
2200                                 }
2201                         } else if ( !strcasecmp(sval,"SYNTAX") ) {
2202                                 LDAP_FREE(sval);
2203                                 if ( seen_syntax ) {
2204                                         *code = LDAP_SCHERR_DUPOPT;
2205                                         *errp = ss;
2206                                         ldap_attributetype_free(at);
2207                                         return(NULL);
2208                                 }
2209                                 seen_syntax = 1;
2210                                 parse_whsp(&ss);
2211                                 savepos = ss;
2212                                 at->at_syntax_oid =
2213                                         parse_noidlen(&ss,
2214                                                       code,
2215                                                       &at->at_syntax_len,
2216                                                       flags);
2217                                 if ( !at->at_syntax_oid ) {
2218                                     if ( flags & LDAP_SCHEMA_ALLOW_OID_MACRO ) {
2219                                         kind = get_token(&ss,&sval);
2220                                         if (kind == TK_BAREWORD)
2221                                         {
2222                                             char *sp = strchr(sval, '{');
2223                                             at->at_syntax_oid = sval;
2224                                             if (sp)
2225                                             {
2226                                                 *sp++ = 0;
2227                                                 at->at_syntax_len = atoi(sp);
2228                                                 while ( LDAP_DIGIT(*sp) )
2229                                                         sp++;
2230                                                 if ( *sp != '}' ) {
2231                                                     *code = LDAP_SCHERR_UNEXPTOKEN;
2232                                                     *errp = ss;
2233                                                     ldap_attributetype_free(at);
2234                                                     return NULL;
2235                                                 }
2236                                             }
2237                                         }
2238                                     } else {
2239                                         *errp = ss;
2240                                         ldap_attributetype_free(at);
2241                                         return NULL;
2242                                     }
2243                                 }
2244                                 parse_whsp(&ss);
2245                         } else if ( !strcasecmp(sval,"SINGLE-VALUE") ) {
2246                                 LDAP_FREE(sval);
2247                                 if ( at->at_single_value ) {
2248                                         *code = LDAP_SCHERR_DUPOPT;
2249                                         *errp = ss;
2250                                         ldap_attributetype_free(at);
2251                                         return(NULL);
2252                                 }
2253                                 at->at_single_value = LDAP_SCHEMA_YES;
2254                                 parse_whsp(&ss);
2255                         } else if ( !strcasecmp(sval,"COLLECTIVE") ) {
2256                                 LDAP_FREE(sval);
2257                                 if ( at->at_collective ) {
2258                                         *code = LDAP_SCHERR_DUPOPT;
2259                                         *errp = ss;
2260                                         ldap_attributetype_free(at);
2261                                         return(NULL);
2262                                 }
2263                                 at->at_collective = LDAP_SCHEMA_YES;
2264                                 parse_whsp(&ss);
2265                         } else if ( !strcasecmp(sval,"NO-USER-MODIFICATION") ) {
2266                                 LDAP_FREE(sval);
2267                                 if ( at->at_no_user_mod ) {
2268                                         *code = LDAP_SCHERR_DUPOPT;
2269                                         *errp = ss;
2270                                         ldap_attributetype_free(at);
2271                                         return(NULL);
2272                                 }
2273                                 at->at_no_user_mod = LDAP_SCHEMA_YES;
2274                                 parse_whsp(&ss);
2275                         } else if ( !strcasecmp(sval,"USAGE") ) {
2276                                 LDAP_FREE(sval);
2277                                 if ( seen_usage ) {
2278                                         *code = LDAP_SCHERR_DUPOPT;
2279                                         *errp = ss;
2280                                         ldap_attributetype_free(at);
2281                                         return(NULL);
2282                                 }
2283                                 seen_usage = 1;
2284                                 parse_whsp(&ss);
2285                                 kind = get_token(&ss,&sval);
2286                                 if ( kind != TK_BAREWORD ) {
2287                                         *code = LDAP_SCHERR_UNEXPTOKEN;
2288                                         *errp = ss;
2289                                         LDAP_FREE(sval);
2290                                         ldap_attributetype_free(at);
2291                                         return NULL;
2292                                 }
2293                                 if ( !strcasecmp(sval,"userApplications") )
2294                                         at->at_usage =
2295                                             LDAP_SCHEMA_USER_APPLICATIONS;
2296                                 else if ( !strcasecmp(sval,"directoryOperation") )
2297                                         at->at_usage =
2298                                             LDAP_SCHEMA_DIRECTORY_OPERATION;
2299                                 else if ( !strcasecmp(sval,"distributedOperation") )
2300                                         at->at_usage =
2301                                             LDAP_SCHEMA_DISTRIBUTED_OPERATION;
2302                                 else if ( !strcasecmp(sval,"dSAOperation") )
2303                                         at->at_usage =
2304                                             LDAP_SCHEMA_DSA_OPERATION;
2305                                 else {
2306                                         *code = LDAP_SCHERR_UNEXPTOKEN;
2307                                         *errp = ss;
2308                                         LDAP_FREE(sval);
2309                                         ldap_attributetype_free(at);
2310                                         return NULL;
2311                                 }
2312                                 LDAP_FREE(sval);
2313                                 parse_whsp(&ss);
2314                         } else if ( sval[0] == 'X' && sval[1] == '-' ) {
2315                                 /* Should be parse_qdstrings */
2316                                 ext_vals = parse_qdescrs(&ss, code);
2317                                 if ( !ext_vals ) {
2318                                         *errp = ss;
2319                                         ldap_attributetype_free(at);
2320                                         return NULL;
2321                                 }
2322                                 if ( add_extension(&at->at_extensions,
2323                                                     sval, ext_vals) ) {
2324                                         *code = LDAP_SCHERR_OUTOFMEM;
2325                                         *errp = ss;
2326                                         LDAP_FREE(sval);
2327                                         ldap_attributetype_free(at);
2328                                         return NULL;
2329                                 }
2330                         } else {
2331                                 *code = LDAP_SCHERR_UNEXPTOKEN;
2332                                 *errp = ss;
2333                                 LDAP_FREE(sval);
2334                                 ldap_attributetype_free(at);
2335                                 return NULL;
2336                         }
2337                         break;
2338                 default:
2339                         *code = LDAP_SCHERR_UNEXPTOKEN;
2340                         *errp = ss;
2341                         LDAP_FREE(sval);
2342                         ldap_attributetype_free(at);
2343                         return NULL;
2344                 }
2345         }
2346 }
2347
2348 void
2349 ldap_objectclass_free(LDAPObjectClass * oc)
2350 {
2351         LDAP_FREE(oc->oc_oid);
2352         if (oc->oc_names) LDAP_VFREE(oc->oc_names);
2353         if (oc->oc_desc) LDAP_FREE(oc->oc_desc);
2354         if (oc->oc_sup_oids) LDAP_VFREE(oc->oc_sup_oids);
2355         if (oc->oc_at_oids_must) LDAP_VFREE(oc->oc_at_oids_must);
2356         if (oc->oc_at_oids_may) LDAP_VFREE(oc->oc_at_oids_may);
2357         free_extensions(oc->oc_extensions);
2358         LDAP_FREE(oc);
2359 }
2360
2361 LDAPObjectClass *
2362 ldap_str2objectclass( LDAP_CONST char * s,
2363         int * code,
2364         LDAP_CONST char ** errp,
2365         LDAP_CONST unsigned flags )
2366 {
2367         tk_t kind;
2368         const char * ss = s;
2369         char * sval;
2370         int seen_name = 0;
2371         int seen_desc = 0;
2372         int seen_obsolete = 0;
2373         int seen_sup = 0;
2374         int seen_kind = 0;
2375         int seen_must = 0;
2376         int seen_may = 0;
2377         LDAPObjectClass * oc;
2378         char ** ext_vals;
2379         const char * savepos;
2380
2381         if ( !s ) {
2382                 *code = LDAP_SCHERR_EMPTY;
2383                 *errp = "";
2384                 return NULL;
2385         }
2386
2387         *errp = s;
2388         oc = LDAP_CALLOC(1,sizeof(LDAPObjectClass));
2389
2390         if ( !oc ) {
2391                 *code = LDAP_SCHERR_OUTOFMEM;
2392                 return NULL;
2393         }
2394         oc->oc_kind = LDAP_SCHEMA_STRUCTURAL;
2395
2396         kind = get_token(&ss,&sval);
2397         if ( kind != TK_LEFTPAREN ) {
2398                 *code = LDAP_SCHERR_NOLEFTPAREN;
2399                 LDAP_FREE(sval);
2400                 ldap_objectclass_free(oc);
2401                 return NULL;
2402         }
2403
2404         /*
2405          * Definitions MUST begin with an OID in the numericoid format.
2406          * However, this routine is used by clients to parse the response
2407          * from servers and very well known servers will provide an OID
2408          * in the wrong format or even no OID at all.  We do our best to
2409          * extract info from those servers.
2410          */
2411         parse_whsp(&ss);
2412         savepos = ss;
2413         oc->oc_oid = ldap_int_parse_numericoid(&ss,code,0);
2414         if ( !oc->oc_oid ) {
2415                 if ( (flags & LDAP_SCHEMA_ALLOW_ALL) && (ss == savepos) ) {
2416                         /* Backtracking */
2417                         ss = savepos;
2418                         kind = get_token(&ss,&sval);
2419                         if ( kind == TK_BAREWORD ) {
2420                                 if ( !strcasecmp(sval, "NAME") ||
2421                                      !strcasecmp(sval, "DESC") ||
2422                                      !strcasecmp(sval, "OBSOLETE") ||
2423                                      !strcasecmp(sval, "SUP") ||
2424                                      !strcasecmp(sval, "ABSTRACT") ||
2425                                      !strcasecmp(sval, "STRUCTURAL") ||
2426                                      !strcasecmp(sval, "AUXILIARY") ||
2427                                      !strcasecmp(sval, "MUST") ||
2428                                      !strcasecmp(sval, "MAY") ||
2429                                      !strncasecmp(sval, "X-", 2) ) {
2430                                         /* Missing OID, backtrack */
2431                                         ss = savepos;
2432                                 } else if ( flags &
2433                                         LDAP_SCHEMA_ALLOW_OID_MACRO ) {
2434                                         /* Non-numerical OID, ignore */
2435                                         int len = ss-savepos;
2436                                         oc->oc_oid = LDAP_MALLOC(len+1);
2437                                         strncpy(oc->oc_oid, savepos, len);
2438                                         oc->oc_oid[len] = 0;
2439                                 }
2440                         }
2441                         LDAP_FREE(sval);
2442                         *code = 0;
2443                 } else {
2444                         *errp = ss;
2445                         ldap_objectclass_free(oc);
2446                         return NULL;
2447                 }
2448         }
2449         parse_whsp(&ss);
2450
2451         /*
2452          * Beyond this point we will be liberal an accept the items
2453          * in any order.
2454          */
2455         while (1) {
2456                 kind = get_token(&ss,&sval);
2457                 switch (kind) {
2458                 case TK_EOS:
2459                         *code = LDAP_SCHERR_NORIGHTPAREN;
2460                         *errp = ss;
2461                         ldap_objectclass_free(oc);
2462                         return NULL;
2463                 case TK_RIGHTPAREN:
2464                         return oc;
2465                 case TK_BAREWORD:
2466                         if ( !strcasecmp(sval,"NAME") ) {
2467                                 LDAP_FREE(sval);
2468                                 if ( seen_name ) {
2469                                         *code = LDAP_SCHERR_DUPOPT;
2470                                         *errp = ss;
2471                                         ldap_objectclass_free(oc);
2472                                         return(NULL);
2473                                 }
2474                                 seen_name = 1;
2475                                 oc->oc_names = parse_qdescrs(&ss,code);
2476                                 if ( !oc->oc_names ) {
2477                                         if ( *code != LDAP_SCHERR_OUTOFMEM )
2478                                                 *code = LDAP_SCHERR_BADNAME;
2479                                         *errp = ss;
2480                                         ldap_objectclass_free(oc);
2481                                         return NULL;
2482                                 }
2483                         } else if ( !strcasecmp(sval,"DESC") ) {
2484                                 LDAP_FREE(sval);
2485                                 if ( seen_desc ) {
2486                                         *code = LDAP_SCHERR_DUPOPT;
2487                                         *errp = ss;
2488                                         ldap_objectclass_free(oc);
2489                                         return(NULL);
2490                                 }
2491                                 seen_desc = 1;
2492                                 parse_whsp(&ss);
2493                                 kind = get_token(&ss,&sval);
2494                                 if ( kind != TK_QDSTRING ) {
2495                                         *code = LDAP_SCHERR_UNEXPTOKEN;
2496                                         *errp = ss;
2497                                         LDAP_FREE(sval);
2498                                         ldap_objectclass_free(oc);
2499                                         return NULL;
2500                                 }
2501                                 oc->oc_desc = sval;
2502                                 parse_whsp(&ss);
2503                         } else if ( !strcasecmp(sval,"OBSOLETE") ) {
2504                                 LDAP_FREE(sval);
2505                                 if ( seen_obsolete ) {
2506                                         *code = LDAP_SCHERR_DUPOPT;
2507                                         *errp = ss;
2508                                         ldap_objectclass_free(oc);
2509                                         return(NULL);
2510                                 }
2511                                 seen_obsolete = 1;
2512                                 oc->oc_obsolete = LDAP_SCHEMA_YES;
2513                                 parse_whsp(&ss);
2514                         } else if ( !strcasecmp(sval,"SUP") ) {
2515                                 LDAP_FREE(sval);
2516                                 if ( seen_sup ) {
2517                                         *code = LDAP_SCHERR_DUPOPT;
2518                                         *errp = ss;
2519                                         ldap_objectclass_free(oc);
2520                                         return(NULL);
2521                                 }
2522                                 seen_sup = 1;
2523                                 oc->oc_sup_oids = parse_oids(&ss,
2524                                                              code,
2525                                                              flags);
2526                                 if ( !oc->oc_sup_oids && *code != LDAP_SUCCESS ) {
2527                                         *errp = ss;
2528                                         ldap_objectclass_free(oc);
2529                                         return NULL;
2530                                 }
2531                                 *code = 0;
2532                         } else if ( !strcasecmp(sval,"ABSTRACT") ) {
2533                                 LDAP_FREE(sval);
2534                                 if ( seen_kind ) {
2535                                         *code = LDAP_SCHERR_DUPOPT;
2536                                         *errp = ss;
2537                                         ldap_objectclass_free(oc);
2538                                         return(NULL);
2539                                 }
2540                                 seen_kind = 1;
2541                                 oc->oc_kind = LDAP_SCHEMA_ABSTRACT;
2542                                 parse_whsp(&ss);
2543                         } else if ( !strcasecmp(sval,"STRUCTURAL") ) {
2544                                 LDAP_FREE(sval);
2545                                 if ( seen_kind ) {
2546                                         *code = LDAP_SCHERR_DUPOPT;
2547                                         *errp = ss;
2548                                         ldap_objectclass_free(oc);
2549                                         return(NULL);
2550                                 }
2551                                 seen_kind = 1;
2552                                 oc->oc_kind = LDAP_SCHEMA_STRUCTURAL;
2553                                 parse_whsp(&ss);
2554                         } else if ( !strcasecmp(sval,"AUXILIARY") ) {
2555                                 LDAP_FREE(sval);
2556                                 if ( seen_kind ) {
2557                                         *code = LDAP_SCHERR_DUPOPT;
2558                                         *errp = ss;
2559                                         ldap_objectclass_free(oc);
2560                                         return(NULL);
2561                                 }
2562                                 seen_kind = 1;
2563                                 oc->oc_kind = LDAP_SCHEMA_AUXILIARY;
2564                                 parse_whsp(&ss);
2565                         } else if ( !strcasecmp(sval,"MUST") ) {
2566                                 LDAP_FREE(sval);
2567                                 if ( seen_must ) {
2568                                         *code = LDAP_SCHERR_DUPOPT;
2569                                         *errp = ss;
2570                                         ldap_objectclass_free(oc);
2571                                         return(NULL);
2572                                 }
2573                                 seen_must = 1;
2574                                 oc->oc_at_oids_must = parse_oids(&ss,code,0);
2575                                 if ( !oc->oc_at_oids_must && *code != LDAP_SUCCESS ) {
2576                                         *errp = ss;
2577                                         ldap_objectclass_free(oc);
2578                                         return NULL;
2579                                 }
2580                                 *code = 0;
2581                                 parse_whsp(&ss);
2582                         } else if ( !strcasecmp(sval,"MAY") ) {
2583                                 LDAP_FREE(sval);
2584                                 if ( seen_may ) {
2585                                         *code = LDAP_SCHERR_DUPOPT;
2586                                         *errp = ss;
2587                                         ldap_objectclass_free(oc);
2588                                         return(NULL);
2589                                 }
2590                                 seen_may = 1;
2591                                 oc->oc_at_oids_may = parse_oids(&ss,code,0);
2592                                 if ( !oc->oc_at_oids_may && *code != LDAP_SUCCESS ) {
2593                                         *errp = ss;
2594                                         ldap_objectclass_free(oc);
2595                                         return NULL;
2596                                 }
2597                                 *code = 0;
2598                                 parse_whsp(&ss);
2599                         } else if ( sval[0] == 'X' && sval[1] == '-' ) {
2600                                 /* Should be parse_qdstrings */
2601                                 ext_vals = parse_qdescrs(&ss, code);
2602                                 *code = 0;
2603                                 if ( !ext_vals ) {
2604                                         *errp = ss;
2605                                         ldap_objectclass_free(oc);
2606                                         return NULL;
2607                                 }
2608                                 if ( add_extension(&oc->oc_extensions,
2609                                                     sval, ext_vals) ) {
2610                                         *code = LDAP_SCHERR_OUTOFMEM;
2611                                         *errp = ss;
2612                                         LDAP_FREE(sval);
2613                                         ldap_objectclass_free(oc);
2614                                         return NULL;
2615                                 }
2616                         } else {
2617                                 *code = LDAP_SCHERR_UNEXPTOKEN;
2618                                 *errp = ss;
2619                                 LDAP_FREE(sval);
2620                                 ldap_objectclass_free(oc);
2621                                 return NULL;
2622                         }
2623                         break;
2624                 default:
2625                         *code = LDAP_SCHERR_UNEXPTOKEN;
2626                         *errp = ss;
2627                         LDAP_FREE(sval);
2628                         ldap_objectclass_free(oc);
2629                         return NULL;
2630                 }
2631         }
2632 }
2633
2634 void
2635 ldap_contentrule_free(LDAPContentRule * cr)
2636 {
2637         LDAP_FREE(cr->cr_oid);
2638         if (cr->cr_names) LDAP_VFREE(cr->cr_names);
2639         if (cr->cr_desc) LDAP_FREE(cr->cr_desc);
2640         if (cr->cr_oc_oids_aux) LDAP_VFREE(cr->cr_oc_oids_aux);
2641         if (cr->cr_at_oids_must) LDAP_VFREE(cr->cr_at_oids_must);
2642         if (cr->cr_at_oids_may) LDAP_VFREE(cr->cr_at_oids_may);
2643         if (cr->cr_at_oids_not) LDAP_VFREE(cr->cr_at_oids_not);
2644         free_extensions(cr->cr_extensions);
2645         LDAP_FREE(cr);
2646 }
2647
2648 LDAPContentRule *
2649 ldap_str2contentrule( LDAP_CONST char * s,
2650         int * code,
2651         LDAP_CONST char ** errp,
2652         LDAP_CONST unsigned flags )
2653 {
2654         tk_t kind;
2655         const char * ss = s;
2656         char * sval;
2657         int seen_name = 0;
2658         int seen_desc = 0;
2659         int seen_obsolete = 0;
2660         int seen_aux = 0;
2661         int seen_must = 0;
2662         int seen_may = 0;
2663         int seen_not = 0;
2664         LDAPContentRule * cr;
2665         char ** ext_vals;
2666         const char * savepos;
2667
2668         if ( !s ) {
2669                 *code = LDAP_SCHERR_EMPTY;
2670                 *errp = "";
2671                 return NULL;
2672         }
2673
2674         *errp = s;
2675         cr = LDAP_CALLOC(1,sizeof(LDAPContentRule));
2676
2677         if ( !cr ) {
2678                 *code = LDAP_SCHERR_OUTOFMEM;
2679                 return NULL;
2680         }
2681
2682         kind = get_token(&ss,&sval);
2683         if ( kind != TK_LEFTPAREN ) {
2684                 *code = LDAP_SCHERR_NOLEFTPAREN;
2685                 LDAP_FREE(sval);
2686                 ldap_contentrule_free(cr);
2687                 return NULL;
2688         }
2689
2690         /*
2691          * Definitions MUST begin with an OID in the numericoid format.
2692          */
2693         parse_whsp(&ss);
2694         savepos = ss;
2695         cr->cr_oid = ldap_int_parse_numericoid(&ss,code,0);
2696         if ( !cr->cr_oid ) {
2697                 if ( (flags & LDAP_SCHEMA_ALLOW_ALL) && (ss == savepos) ) {
2698                         /* Backtracking */
2699                         ss = savepos;
2700                         kind = get_token(&ss,&sval);
2701                         if ( kind == TK_BAREWORD ) {
2702                                 if ( !strcasecmp(sval, "NAME") ||
2703                                      !strcasecmp(sval, "DESC") ||
2704                                      !strcasecmp(sval, "OBSOLETE") ||
2705                                      !strcasecmp(sval, "AUX") ||
2706                                      !strcasecmp(sval, "MUST") ||
2707                                      !strcasecmp(sval, "MAY") ||
2708                                      !strcasecmp(sval, "NOT") ||
2709                                      !strncasecmp(sval, "X-", 2) ) {
2710                                         /* Missing OID, backtrack */
2711                                         ss = savepos;
2712                                 } else if ( flags &
2713                                         LDAP_SCHEMA_ALLOW_OID_MACRO ) {
2714                                         /* Non-numerical OID, ignore */
2715                                         int len = ss-savepos;
2716                                         cr->cr_oid = LDAP_MALLOC(len+1);
2717                                         strncpy(cr->cr_oid, savepos, len);
2718                                         cr->cr_oid[len] = 0;
2719                                 }
2720                         }
2721                         LDAP_FREE(sval);
2722                 } else {
2723                         *errp = ss;
2724                         ldap_contentrule_free(cr);
2725                         return NULL;
2726                 }
2727         }
2728         parse_whsp(&ss);
2729
2730         /*
2731          * Beyond this point we will be liberal an accept the items
2732          * in any order.
2733          */
2734         while (1) {
2735                 kind = get_token(&ss,&sval);
2736                 switch (kind) {
2737                 case TK_EOS:
2738                         *code = LDAP_SCHERR_NORIGHTPAREN;
2739                         *errp = ss;
2740                         ldap_contentrule_free(cr);
2741                         return NULL;
2742                 case TK_RIGHTPAREN:
2743                         return cr;
2744                 case TK_BAREWORD:
2745                         if ( !strcasecmp(sval,"NAME") ) {
2746                                 LDAP_FREE(sval);
2747                                 if ( seen_name ) {
2748                                         *code = LDAP_SCHERR_DUPOPT;
2749                                         *errp = ss;
2750                                         ldap_contentrule_free(cr);
2751                                         return(NULL);
2752                                 }
2753                                 seen_name = 1;
2754                                 cr->cr_names = parse_qdescrs(&ss,code);
2755                                 if ( !cr->cr_names ) {
2756                                         if ( *code != LDAP_SCHERR_OUTOFMEM )
2757                                                 *code = LDAP_SCHERR_BADNAME;
2758                                         *errp = ss;
2759                                         ldap_contentrule_free(cr);
2760                                         return NULL;
2761                                 }
2762                         } else if ( !strcasecmp(sval,"DESC") ) {
2763                                 LDAP_FREE(sval);
2764                                 if ( seen_desc ) {
2765                                         *code = LDAP_SCHERR_DUPOPT;
2766                                         *errp = ss;
2767                                         ldap_contentrule_free(cr);
2768                                         return(NULL);
2769                                 }
2770                                 seen_desc = 1;
2771                                 parse_whsp(&ss);
2772                                 kind = get_token(&ss,&sval);
2773                                 if ( kind != TK_QDSTRING ) {
2774                                         *code = LDAP_SCHERR_UNEXPTOKEN;
2775                                         *errp = ss;
2776                                         LDAP_FREE(sval);
2777                                         ldap_contentrule_free(cr);
2778                                         return NULL;
2779                                 }
2780                                 cr->cr_desc = sval;
2781                                 parse_whsp(&ss);
2782                         } else if ( !strcasecmp(sval,"OBSOLETE") ) {
2783                                 LDAP_FREE(sval);
2784                                 if ( seen_obsolete ) {
2785                                         *code = LDAP_SCHERR_DUPOPT;
2786                                         *errp = ss;
2787                                         ldap_contentrule_free(cr);
2788                                         return(NULL);
2789                                 }
2790                                 seen_obsolete = 1;
2791                                 cr->cr_obsolete = LDAP_SCHEMA_YES;
2792                                 parse_whsp(&ss);
2793                         } else if ( !strcasecmp(sval,"AUX") ) {
2794                                 LDAP_FREE(sval);
2795                                 if ( seen_aux ) {
2796                                         *code = LDAP_SCHERR_DUPOPT;
2797                                         *errp = ss;
2798                                         ldap_contentrule_free(cr);
2799                                         return(NULL);
2800                                 }
2801                                 seen_aux = 1;
2802                                 cr->cr_oc_oids_aux = parse_oids(&ss,code,0);
2803                                 if ( !cr->cr_oc_oids_aux ) {
2804                                         *errp = ss;
2805                                         ldap_contentrule_free(cr);
2806                                         return NULL;
2807                                 }
2808                                 parse_whsp(&ss);
2809                         } else if ( !strcasecmp(sval,"MUST") ) {
2810                                 LDAP_FREE(sval);
2811                                 if ( seen_must ) {
2812                                         *code = LDAP_SCHERR_DUPOPT;
2813                                         *errp = ss;
2814                                         ldap_contentrule_free(cr);
2815                                         return(NULL);
2816                                 }
2817                                 seen_must = 1;
2818                                 cr->cr_at_oids_must = parse_oids(&ss,code,0);
2819                                 if ( !cr->cr_at_oids_must && *code != LDAP_SUCCESS ) {
2820                                         *errp = ss;
2821                                         ldap_contentrule_free(cr);
2822                                         return NULL;
2823                                 }
2824                                 parse_whsp(&ss);
2825                         } else if ( !strcasecmp(sval,"MAY") ) {
2826                                 LDAP_FREE(sval);
2827                                 if ( seen_may ) {
2828                                         *code = LDAP_SCHERR_DUPOPT;
2829                                         *errp = ss;
2830                                         ldap_contentrule_free(cr);
2831                                         return(NULL);
2832                                 }
2833                                 seen_may = 1;
2834                                 cr->cr_at_oids_may = parse_oids(&ss,code,0);
2835                                 if ( !cr->cr_at_oids_may && *code != LDAP_SUCCESS ) {
2836                                         *errp = ss;
2837                                         ldap_contentrule_free(cr);
2838                                         return NULL;
2839                                 }
2840                                 parse_whsp(&ss);
2841                         } else if ( !strcasecmp(sval,"NOT") ) {
2842                                 LDAP_FREE(sval);
2843                                 if ( seen_not ) {
2844                                         *code = LDAP_SCHERR_DUPOPT;
2845                                         *errp = ss;
2846                                         ldap_contentrule_free(cr);
2847                                         return(NULL);
2848                                 }
2849                                 seen_not = 1;
2850                                 cr->cr_at_oids_not = parse_oids(&ss,code,0);
2851                                 if ( !cr->cr_at_oids_not && *code != LDAP_SUCCESS ) {
2852                                         *errp = ss;
2853                                         ldap_contentrule_free(cr);
2854                                         return NULL;
2855                                 }
2856                                 parse_whsp(&ss);
2857                         } else if ( sval[0] == 'X' && sval[1] == '-' ) {
2858                                 /* Should be parse_qdstrings */
2859                                 ext_vals = parse_qdescrs(&ss, code);
2860                                 if ( !ext_vals ) {
2861                                         *errp = ss;
2862                                         ldap_contentrule_free(cr);
2863                                         return NULL;
2864                                 }
2865                                 if ( add_extension(&cr->cr_extensions,
2866                                                     sval, ext_vals) ) {
2867                                         *code = LDAP_SCHERR_OUTOFMEM;
2868                                         *errp = ss;
2869                                         LDAP_FREE(sval);
2870                                         ldap_contentrule_free(cr);
2871                                         return NULL;
2872                                 }
2873                         } else {
2874                                 *code = LDAP_SCHERR_UNEXPTOKEN;
2875                                 *errp = ss;
2876                                 LDAP_FREE(sval);
2877                                 ldap_contentrule_free(cr);
2878                                 return NULL;
2879                         }
2880                         break;
2881                 default:
2882                         *code = LDAP_SCHERR_UNEXPTOKEN;
2883                         *errp = ss;
2884                         LDAP_FREE(sval);
2885                         ldap_contentrule_free(cr);
2886                         return NULL;
2887                 }
2888         }
2889 }
2890
2891 void
2892 ldap_structurerule_free(LDAPStructureRule * sr)
2893 {
2894         if (sr->sr_names) LDAP_VFREE(sr->sr_names);
2895         if (sr->sr_desc) LDAP_FREE(sr->sr_desc);
2896         if (sr->sr_nameform) LDAP_FREE(sr->sr_nameform);
2897         if (sr->sr_sup_ruleids) LDAP_FREE(sr->sr_sup_ruleids);
2898         free_extensions(sr->sr_extensions);
2899         LDAP_FREE(sr);
2900 }
2901
2902 LDAPStructureRule *
2903 ldap_str2structurerule( LDAP_CONST char * s,
2904         int * code,
2905         LDAP_CONST char ** errp,
2906         LDAP_CONST unsigned flags )
2907 {
2908         tk_t kind;
2909         int ret;
2910         const char * ss = s;
2911         char * sval;
2912         int seen_name = 0;
2913         int seen_desc = 0;
2914         int seen_obsolete = 0;
2915         int seen_nameform = 0;
2916         LDAPStructureRule * sr;
2917         char ** ext_vals;
2918         const char * savepos;
2919
2920         if ( !s ) {
2921                 *code = LDAP_SCHERR_EMPTY;
2922                 *errp = "";
2923                 return NULL;
2924         }
2925
2926         *errp = s;
2927         sr = LDAP_CALLOC(1,sizeof(LDAPStructureRule));
2928
2929         if ( !sr ) {
2930                 *code = LDAP_SCHERR_OUTOFMEM;
2931                 return NULL;
2932         }
2933
2934         kind = get_token(&ss,&sval);
2935         if ( kind != TK_LEFTPAREN ) {
2936                 *code = LDAP_SCHERR_NOLEFTPAREN;
2937                 LDAP_FREE(sval);
2938                 ldap_structurerule_free(sr);
2939                 return NULL;
2940         }
2941
2942         /*
2943          * Definitions MUST begin with a ruleid.
2944          */
2945         parse_whsp(&ss);
2946         savepos = ss;
2947         ret = ldap_int_parse_ruleid(&ss,code,0,&sr->sr_ruleid);
2948         if ( ret ) {
2949                 *errp = ss;
2950                 ldap_structurerule_free(sr);
2951                 return NULL;
2952         }
2953         parse_whsp(&ss);
2954
2955         /*
2956          * Beyond this point we will be liberal an accept the items
2957          * in any order.
2958          */
2959         while (1) {
2960                 kind = get_token(&ss,&sval);
2961                 switch (kind) {
2962                 case TK_EOS:
2963                         *code = LDAP_SCHERR_NORIGHTPAREN;
2964                         *errp = ss;
2965                         ldap_structurerule_free(sr);
2966                         return NULL;
2967                 case TK_RIGHTPAREN:
2968                         if( !seen_nameform ) {
2969                                 *code = LDAP_SCHERR_MISSING;
2970                                 ldap_structurerule_free(sr);
2971                                 return NULL;
2972                         }
2973                         return sr;
2974                 case TK_BAREWORD:
2975                         if ( !strcasecmp(sval,"NAME") ) {
2976                                 LDAP_FREE(sval);
2977                                 if ( seen_name ) {
2978                                         *code = LDAP_SCHERR_DUPOPT;
2979                                         *errp = ss;
2980                                         ldap_structurerule_free(sr);
2981                                         return(NULL);
2982                                 }
2983                                 seen_name = 1;
2984                                 sr->sr_names = parse_qdescrs(&ss,code);
2985                                 if ( !sr->sr_names ) {
2986                                         if ( *code != LDAP_SCHERR_OUTOFMEM )
2987                                                 *code = LDAP_SCHERR_BADNAME;
2988                                         *errp = ss;
2989                                         ldap_structurerule_free(sr);
2990                                         return NULL;
2991                                 }
2992                         } else if ( !strcasecmp(sval,"DESC") ) {
2993                                 LDAP_FREE(sval);
2994                                 if ( seen_desc ) {
2995                                         *code = LDAP_SCHERR_DUPOPT;
2996                                         *errp = ss;
2997                                         ldap_structurerule_free(sr);
2998                                         return(NULL);
2999                                 }
3000                                 seen_desc = 1;
3001                                 parse_whsp(&ss);
3002                                 kind = get_token(&ss,&sval);
3003                                 if ( kind != TK_QDSTRING ) {
3004                                         *code = LDAP_SCHERR_UNEXPTOKEN;
3005                                         *errp = ss;
3006                                         LDAP_FREE(sval);
3007                                         ldap_structurerule_free(sr);
3008                                         return NULL;
3009                                 }
3010                                 sr->sr_desc = sval;
3011                                 parse_whsp(&ss);
3012                         } else if ( !strcasecmp(sval,"OBSOLETE") ) {
3013                                 LDAP_FREE(sval);
3014                                 if ( seen_obsolete ) {
3015                                         *code = LDAP_SCHERR_DUPOPT;
3016                                         *errp = ss;
3017                                         ldap_structurerule_free(sr);
3018                                         return(NULL);
3019                                 }
3020                                 seen_obsolete = 1;
3021                                 sr->sr_obsolete = LDAP_SCHEMA_YES;
3022                                 parse_whsp(&ss);
3023                         } else if ( !strcasecmp(sval,"FORM") ) {
3024                                 LDAP_FREE(sval);
3025                                 if ( seen_nameform ) {
3026                                         *code = LDAP_SCHERR_DUPOPT;
3027                                         *errp = ss;
3028                                         ldap_structurerule_free(sr);
3029                                         return(NULL);
3030                                 }
3031                                 seen_nameform = 1;
3032                                 sr->sr_nameform = parse_woid(&ss,code);
3033                                 if ( !sr->sr_nameform ) {
3034                                         *errp = ss;
3035                                         ldap_structurerule_free(sr);
3036                                         return NULL;
3037                                 }
3038                                 parse_whsp(&ss);
3039                         } else if ( sval[0] == 'X' && sval[1] == '-' ) {
3040                                 /* Should be parse_qdstrings */
3041                                 ext_vals = parse_qdescrs(&ss, code);
3042                                 if ( !ext_vals ) {
3043                                         *errp = ss;
3044                                         ldap_structurerule_free(sr);
3045                                         return NULL;
3046                                 }
3047                                 if ( add_extension(&sr->sr_extensions,
3048                                                     sval, ext_vals) ) {
3049                                         *code = LDAP_SCHERR_OUTOFMEM;
3050                                         *errp = ss;
3051                                         LDAP_FREE(sval);
3052                                         ldap_structurerule_free(sr);
3053                                         return NULL;
3054                                 }
3055                         } else {
3056                                 *code = LDAP_SCHERR_UNEXPTOKEN;
3057                                 *errp = ss;
3058                                 LDAP_FREE(sval);
3059                                 ldap_structurerule_free(sr);
3060                                 return NULL;
3061                         }
3062                         break;
3063                 default:
3064                         *code = LDAP_SCHERR_UNEXPTOKEN;
3065                         *errp = ss;
3066                         LDAP_FREE(sval);
3067                         ldap_structurerule_free(sr);
3068                         return NULL;
3069                 }
3070         }
3071 }
3072
3073 void
3074 ldap_nameform_free(LDAPNameForm * nf)
3075 {
3076         LDAP_FREE(nf->nf_oid);
3077         if (nf->nf_names) LDAP_VFREE(nf->nf_names);
3078         if (nf->nf_desc) LDAP_FREE(nf->nf_desc);
3079         if (nf->nf_objectclass) LDAP_FREE(nf->nf_objectclass);
3080         if (nf->nf_at_oids_must) LDAP_VFREE(nf->nf_at_oids_must);
3081         if (nf->nf_at_oids_may) LDAP_VFREE(nf->nf_at_oids_may);
3082         free_extensions(nf->nf_extensions);
3083         LDAP_FREE(nf);
3084 }
3085
3086 LDAPNameForm *
3087 ldap_str2nameform( LDAP_CONST char * s,
3088         int * code,
3089         LDAP_CONST char ** errp,
3090         LDAP_CONST unsigned flags )
3091 {
3092         tk_t kind;
3093         const char * ss = s;
3094         char * sval;
3095         int seen_name = 0;
3096         int seen_desc = 0;
3097         int seen_obsolete = 0;
3098         int seen_class = 0;
3099         int seen_must = 0;
3100         int seen_may = 0;
3101         LDAPNameForm * nf;
3102         char ** ext_vals;
3103         const char * savepos;
3104
3105         if ( !s ) {
3106                 *code = LDAP_SCHERR_EMPTY;
3107                 *errp = "";
3108                 return NULL;
3109         }
3110
3111         *errp = s;
3112         nf = LDAP_CALLOC(1,sizeof(LDAPNameForm));
3113
3114         if ( !nf ) {
3115                 *code = LDAP_SCHERR_OUTOFMEM;
3116                 return NULL;
3117         }
3118
3119         kind = get_token(&ss,&sval);
3120         if ( kind != TK_LEFTPAREN ) {
3121                 *code = LDAP_SCHERR_NOLEFTPAREN;
3122                 LDAP_FREE(sval);
3123                 ldap_nameform_free(nf);
3124                 return NULL;
3125         }
3126
3127         /*
3128          * Definitions MUST begin with an OID in the numericoid format.
3129          * However, this routine is used by clients to parse the response
3130          * from servers and very well known servers will provide an OID
3131          * in the wrong format or even no OID at all.  We do our best to
3132          * extract info from those servers.
3133          */
3134         parse_whsp(&ss);
3135         savepos = ss;
3136         nf->nf_oid = ldap_int_parse_numericoid(&ss,code,0);
3137         if ( !nf->nf_oid ) {
3138                 *errp = ss;
3139                 ldap_nameform_free(nf);
3140                 return NULL;
3141         }
3142         parse_whsp(&ss);
3143
3144         /*
3145          * Beyond this point we will be liberal an accept the items
3146          * in any order.
3147          */
3148         while (1) {
3149                 kind = get_token(&ss,&sval);
3150                 switch (kind) {
3151                 case TK_EOS:
3152                         *code = LDAP_SCHERR_NORIGHTPAREN;
3153                         *errp = ss;
3154                         ldap_nameform_free(nf);
3155                         return NULL;
3156                 case TK_RIGHTPAREN:
3157                         if( !seen_class || !seen_must ) {
3158                                 *code = LDAP_SCHERR_MISSING;
3159                                 ldap_nameform_free(nf);
3160                                 return NULL;
3161                         }
3162                         return nf;
3163                 case TK_BAREWORD:
3164                         if ( !strcasecmp(sval,"NAME") ) {
3165                                 LDAP_FREE(sval);
3166                                 if ( seen_name ) {
3167                                         *code = LDAP_SCHERR_DUPOPT;
3168                                         *errp = ss;
3169                                         ldap_nameform_free(nf);
3170                                         return(NULL);
3171                                 }
3172                                 seen_name = 1;
3173                                 nf->nf_names = parse_qdescrs(&ss,code);
3174                                 if ( !nf->nf_names ) {
3175                                         if ( *code != LDAP_SCHERR_OUTOFMEM )
3176                                                 *code = LDAP_SCHERR_BADNAME;
3177                                         *errp = ss;
3178                                         ldap_nameform_free(nf);
3179                                         return NULL;
3180                                 }
3181                         } else if ( !strcasecmp(sval,"DESC") ) {
3182                                 LDAP_FREE(sval);
3183                                 if ( seen_desc ) {
3184                                         *code = LDAP_SCHERR_DUPOPT;
3185                                         *errp = ss;
3186                                         ldap_nameform_free(nf);
3187                                         return(NULL);
3188                                 }
3189                                 seen_desc = 1;
3190                                 parse_whsp(&ss);
3191                                 kind = get_token(&ss,&sval);
3192                                 if ( kind != TK_QDSTRING ) {
3193                                         *code = LDAP_SCHERR_UNEXPTOKEN;
3194                                         *errp = ss;
3195                                         LDAP_FREE(sval);
3196                                         ldap_nameform_free(nf);
3197                                         return NULL;
3198                                 }
3199                                 nf->nf_desc = sval;
3200                                 parse_whsp(&ss);
3201                         } else if ( !strcasecmp(sval,"OBSOLETE") ) {
3202                                 LDAP_FREE(sval);
3203                                 if ( seen_obsolete ) {
3204                                         *code = LDAP_SCHERR_DUPOPT;
3205                                         *errp = ss;
3206                                         ldap_nameform_free(nf);
3207                                         return(NULL);
3208                                 }
3209                                 seen_obsolete = 1;
3210                                 nf->nf_obsolete = LDAP_SCHEMA_YES;
3211                                 parse_whsp(&ss);
3212                         } else if ( !strcasecmp(sval,"MUST") ) {
3213                                 LDAP_FREE(sval);
3214                                 if ( seen_must ) {
3215                                         *code = LDAP_SCHERR_DUPOPT;
3216                                         *errp = ss;
3217                                         ldap_nameform_free(nf);
3218                                         return(NULL);
3219                                 }
3220                                 seen_must = 1;
3221                                 nf->nf_at_oids_must = parse_oids(&ss,code,0);
3222                                 if ( !nf->nf_at_oids_must && *code != LDAP_SUCCESS ) {
3223                                         *errp = ss;
3224                                         ldap_nameform_free(nf);
3225                                         return NULL;
3226                                 }
3227                                 parse_whsp(&ss);
3228                         } else if ( !strcasecmp(sval,"MAY") ) {
3229                                 LDAP_FREE(sval);
3230                                 if ( seen_may ) {
3231                                         *code = LDAP_SCHERR_DUPOPT;
3232                                         *errp = ss;
3233                                         ldap_nameform_free(nf);
3234                                         return(NULL);
3235                                 }
3236                                 seen_may = 1;
3237                                 nf->nf_at_oids_may = parse_oids(&ss,code,0);
3238                                 if ( !nf->nf_at_oids_may && *code != LDAP_SUCCESS ) {
3239                                         *errp = ss;
3240                                         ldap_nameform_free(nf);
3241                                         return NULL;
3242                                 }
3243                                 parse_whsp(&ss);
3244                         } else if ( sval[0] == 'X' && sval[1] == '-' ) {
3245                                 /* Should be parse_qdstrings */
3246                                 ext_vals = parse_qdescrs(&ss, code);
3247                                 if ( !ext_vals ) {
3248                                         *errp = ss;
3249                                         ldap_nameform_free(nf);
3250                                         return NULL;
3251                                 }
3252                                 if ( add_extension(&nf->nf_extensions,
3253                                                     sval, ext_vals) ) {
3254                                         *code = LDAP_SCHERR_OUTOFMEM;
3255                                         *errp = ss;
3256                                         LDAP_FREE(sval);
3257                                         ldap_nameform_free(nf);
3258                                         return NULL;
3259                                 }
3260                         } else {
3261                                 *code = LDAP_SCHERR_UNEXPTOKEN;
3262                                 *errp = ss;
3263                                 LDAP_FREE(sval);
3264                                 ldap_nameform_free(nf);
3265                                 return NULL;
3266                         }
3267                         break;
3268                 default:
3269                         *code = LDAP_SCHERR_UNEXPTOKEN;
3270                         *errp = ss;
3271                         LDAP_FREE(sval);
3272                         ldap_nameform_free(nf);
3273                         return NULL;
3274                 }
3275         }
3276 }
3277
3278 static char *const err2text[] = {
3279         N_("Success"),
3280         N_("Out of memory"),
3281         N_("Unexpected token"),
3282         N_("Missing opening parenthesis"),
3283         N_("Missing closing parenthesis"),
3284         N_("Expecting digit"),
3285         N_("Expecting a name"),
3286         N_("Bad description"),
3287         N_("Bad superiors"),
3288         N_("Duplicate option"),
3289         N_("Unexpected end of data"),
3290         N_("Missing required field"),
3291         N_("Out of order field")
3292 };
3293
3294 char *
3295 ldap_scherr2str(int code)
3296 {
3297         if ( code < 0 || code >= (int)(sizeof(err2text)/sizeof(char *)) ) {
3298                 return _("Unknown error");
3299         } else {
3300                 return _(err2text[code]);
3301         }
3302 }