contrib/ldns/rr.c

   1 /* rr.c
   2  *
   3  * access functions for ldns_rr -
   4  * a Net::DNS like library for C
   5  * LibDNS Team @ NLnet Labs
   6  *
   7  * (c) NLnet Labs, 2004-2006
   8  * See the file LICENSE for the license
   9  */
  10 #include <ldns/config.h>
  11
  12 #include <ldns/ldns.h>
  13
  14 #include <strings.h>
  15 #include <limits.h>
  16
  17 #include <errno.h>
  18
  19 #define LDNS_SYNTAX_DATALEN 16
  20 #define LDNS_TTL_DATALEN    21
  21 #define LDNS_RRLIST_INIT    8
  22
  23 ldns_rr *
  24 ldns_rr_new(void)
  25 {
  26         ldns_rr *rr;
  27         rr = LDNS_MALLOC(ldns_rr);
  28         if (!rr) {
  29                 return NULL;
  30         }
  31
  32         ldns_rr_set_owner(rr, NULL);
  33         ldns_rr_set_question(rr, false);
  34         ldns_rr_set_rd_count(rr, 0);
  35         rr->_rdata_fields = NULL;
  36         ldns_rr_set_class(rr, LDNS_RR_CLASS_IN);
  37         ldns_rr_set_ttl(rr, LDNS_DEFAULT_TTL);
  38         return rr;
  39 }
  40
  41 ldns_rr *
  42 ldns_rr_new_frm_type(ldns_rr_type t)
  43 {
  44         ldns_rr *rr;
  45         const ldns_rr_descriptor *desc;
  46         size_t i;
  47
  48         rr = LDNS_MALLOC(ldns_rr);
  49         if (!rr) {
  50                 return NULL;
  51         }
  52
  53         desc = ldns_rr_descript(t);
  54
  55         rr->_rdata_fields = LDNS_XMALLOC(ldns_rdf *, ldns_rr_descriptor_minimum(desc));
  56         if(!rr->_rdata_fields) {
  57                 LDNS_FREE(rr);
  58                 return NULL;
  59         }
  60         for (i = 0; i < ldns_rr_descriptor_minimum(desc); i++) {
  61                 rr->_rdata_fields[i] = NULL;
  62         }
  63
  64         ldns_rr_set_owner(rr, NULL);
  65         ldns_rr_set_question(rr, false);
  66         /* set the count to minimum */
  67         ldns_rr_set_rd_count(rr, ldns_rr_descriptor_minimum(desc));
  68         ldns_rr_set_class(rr, LDNS_RR_CLASS_IN);
  69         ldns_rr_set_ttl(rr, LDNS_DEFAULT_TTL);
  70         ldns_rr_set_type(rr, t);
  71         return rr;
  72 }
  73
  74 void
  75 ldns_rr_free(ldns_rr *rr)
  76 {
  77         size_t i;
  78         if (rr) {
  79                 if (ldns_rr_owner(rr)) {
  80                         ldns_rdf_deep_free(ldns_rr_owner(rr));
  81                 }
  82                 for (i = 0; i < ldns_rr_rd_count(rr); i++) {
  83                         ldns_rdf_deep_free(ldns_rr_rdf(rr, i));
  84                 }
  85                 LDNS_FREE(rr->_rdata_fields);
  86                 LDNS_FREE(rr);
  87         }
  88 }
  89
  90 /*
  91  * trailing spaces are allowed
  92  * leading spaces are not allowed
  93  * allow ttl to be optional
  94  * class is optional too
  95  * if ttl is missing, and default_ttl is 0, use DEF_TTL
  96  * allow ttl to be written as 1d3h
  97  * So the RR should look like. e.g.
  98  * miek.nl. 3600 IN MX 10 elektron.atoom.net
  99  * or
 100  * miek.nl. 1h IN MX 10 elektron.atoom.net
 101  * or
 102  * miek.nl. IN MX 10 elektron.atoom.net
 103  */
 104 static ldns_status
 105 ldns_rr_new_frm_str_internal(ldns_rr **newrr, const char *str,
 106                              uint32_t default_ttl, ldns_rdf *origin,
 107                              ldns_rdf **prev, bool question)
 108 {
 109         ldns_rr *new;
 110         const ldns_rr_descriptor *desc;
 111         ldns_rr_type rr_type;
 112         ldns_buffer *rr_buf = NULL;
 113         ldns_buffer *rd_buf = NULL;
 114         uint32_t ttl_val;
 115         char  *owner = NULL;
 116         char  *ttl = NULL;
 117         ldns_rr_class clas_val;
 118         char  *clas = NULL;
 119         char  *type = NULL;
 120         char  *rdata = NULL;
 121         char  *rd = NULL;
 122         char  *b64 = NULL;
 123         size_t rd_strlen;
 124         const char *delimiters;
 125         ssize_t c;
 126         ldns_rdf *owner_dname;
 127         const char* endptr;
 128         int was_unknown_rr_format = 0;
 129         ldns_status status = LDNS_STATUS_OK;
 130
 131         /* used for types with unknown number of rdatas */
 132         bool done;
 133         bool quoted;
 134
 135         ldns_rdf *r = NULL;
 136         uint16_t r_cnt;
 137         uint16_t r_min;
 138         uint16_t r_max;
 139         size_t pre_data_pos;
 140
 141         new = ldns_rr_new();
 142
 143         owner = LDNS_XMALLOC(char, LDNS_MAX_DOMAINLEN + 1);
 144         ttl = LDNS_XMALLOC(char, LDNS_TTL_DATALEN);
 145         clas = LDNS_XMALLOC(char, LDNS_SYNTAX_DATALEN);
 146         rdata = LDNS_XMALLOC(char, LDNS_MAX_PACKETLEN + 1);
 147         rr_buf = LDNS_MALLOC(ldns_buffer);
 148         rd_buf = LDNS_MALLOC(ldns_buffer);
 149         rd = LDNS_XMALLOC(char, LDNS_MAX_RDFLEN);
 150         b64 = LDNS_XMALLOC(char, LDNS_MAX_RDFLEN);
 151         if (!new || !owner || !ttl || !clas || !rdata || !rr_buf || !rd_buf || !rd || !b64 ) {
 152                 status = LDNS_STATUS_MEM_ERR;
 153                 LDNS_FREE(rr_buf);
 154                 goto ldnserror;
 155         }
 156
 157         ldns_buffer_new_frm_data(rr_buf, (char*)str, strlen(str));
 158
 159         /* split the rr in its parts -1 signals trouble */
 160         if (ldns_bget_token(rr_buf, owner, "\t\n ", LDNS_MAX_DOMAINLEN) == -1) {
 161                 status = LDNS_STATUS_SYNTAX_ERR;
 162                 ldns_buffer_free(rr_buf);
 163                 goto ldnserror;
 164         }
 165
 166         if (ldns_bget_token(rr_buf, ttl, "\t\n ", LDNS_TTL_DATALEN) == -1) {
 167                 status = LDNS_STATUS_SYNTAX_TTL_ERR;
 168                 ldns_buffer_free(rr_buf);
 169                 goto ldnserror;
 170         }
 171         ttl_val = (uint32_t) ldns_str2period(ttl, &endptr);
 172
 173         if (strlen(ttl) > 0 && !isdigit((int) ttl[0])) {
 174                 /* ah, it's not there or something */
 175                 if (default_ttl == 0) {
 176                         ttl_val = LDNS_DEFAULT_TTL;
 177                 } else {
 178                         ttl_val = default_ttl;
 179                 }
 180                 /* we not ASSUMING the TTL is missing and that
 181                  * the rest of the RR is still there. That is
 182                  * CLASS TYPE RDATA
 183                  * so ttl value we read is actually the class
 184                  */
 185                 clas_val = ldns_get_rr_class_by_name(ttl);
 186                 /* class can be left out too, assume IN, current
 187                  * token must be type
 188                  */
 189                 if (clas_val == 0) {
 190                         clas_val = LDNS_RR_CLASS_IN;
 191                         type = LDNS_XMALLOC(char, strlen(ttl) + 1);
 192                         if(!type) {
 193                                 status = LDNS_STATUS_MEM_ERR;
 194                                 ldns_buffer_free(rr_buf);
 195                                 goto ldnserror;
 196                         }
 197                         strncpy(type, ttl, strlen(ttl) + 1);
 198                 }
 199         } else {
 200                 if (ldns_bget_token(rr_buf, clas, "\t\n ", LDNS_SYNTAX_DATALEN) == -1) {
 201                         status = LDNS_STATUS_SYNTAX_CLASS_ERR;
 202                         ldns_buffer_free(rr_buf);
 203                         goto ldnserror;
 204                 }
 205                 clas_val = ldns_get_rr_class_by_name(clas);
 206                 /* class can be left out too, assume IN, current
 207                  * token must be type
 208                  */
 209                 if (clas_val == 0) {
 210                         clas_val = LDNS_RR_CLASS_IN;
 211                         type = LDNS_XMALLOC(char, strlen(clas) + 1);
 212                         if(!type) {
 213                                 status = LDNS_STATUS_MEM_ERR;
 214                                 ldns_buffer_free(rr_buf);
 215                                 goto ldnserror;
 216                         }
 217                         strncpy(type, clas, strlen(clas) + 1);
 218                 }
 219         }
 220         /* the rest should still be waiting for us */
 221
 222         if (!type) {
 223                 type = LDNS_XMALLOC(char, LDNS_SYNTAX_DATALEN);
 224                 if(!type) {
 225                         status = LDNS_STATUS_MEM_ERR;
 226                         ldns_buffer_free(rr_buf);
 227                         goto ldnserror;
 228                 }
 229                 if (ldns_bget_token(rr_buf, type, "\t\n ", LDNS_SYNTAX_DATALEN) == -1) {
 230                         status = LDNS_STATUS_SYNTAX_TYPE_ERR;
 231                         ldns_buffer_free(rr_buf);
 232                         goto ldnserror;
 233                 }
 234         }
 235
 236         if (ldns_bget_token(rr_buf, rdata, "\0", LDNS_MAX_PACKETLEN) == -1) {
 237                 /* apparently we are done, and it's only a question RR
 238                  * so do not set status and go to ldnserror here
 239                 */
 240         }
 241
 242         ldns_buffer_new_frm_data(rd_buf, rdata, strlen(rdata));
 243
 244         if (strlen(owner) <= 1 && strncmp(owner, "@", 1) == 0) {
 245                 if (origin) {
 246                         ldns_rr_set_owner(new, ldns_rdf_clone(origin));
 247                 } else if (prev && *prev) {
 248                         ldns_rr_set_owner(new, ldns_rdf_clone(*prev));
 249                 } else {
 250                         /* default to root */
 251                         ldns_rr_set_owner(new, ldns_dname_new_frm_str("."));
 252                 }
 253
 254                 /* @ also overrides prev */
 255                 if (prev) {
 256                         ldns_rdf_deep_free(*prev);
 257                         *prev = ldns_rdf_clone(ldns_rr_owner(new));
 258                         if (!*prev) {
 259                                 status = LDNS_STATUS_MEM_ERR;
 260                                 ldns_buffer_free(rr_buf);
 261                                 goto ldnserror;
 262                         }
 263                 }
 264         } else {
 265                 if (strlen(owner) == 0) {
 266                         /* no ownername was given, try prev, if that fails
 267                          * origin, else default to root */
 268                         if (prev && *prev) {
 269                                 ldns_rr_set_owner(new, ldns_rdf_clone(*prev));
 270                         } else if (origin) {
 271                                 ldns_rr_set_owner(new, ldns_rdf_clone(origin));
 272                         } else {
 273                                 ldns_rr_set_owner(new, ldns_dname_new_frm_str("."));
 274                         }
 275                         if(!ldns_rr_owner(new)) {
 276                                 status = LDNS_STATUS_MEM_ERR;
 277                                 ldns_buffer_free(rr_buf);
 278                                 goto ldnserror;
 279                         }
 280                 } else {
 281                         owner_dname = ldns_dname_new_frm_str(owner);
 282                         if (!owner_dname) {
 283                                 status = LDNS_STATUS_SYNTAX_ERR;
 284                                 ldns_buffer_free(rr_buf);
 285                                 goto ldnserror;
 286                         }
 287
 288                         ldns_rr_set_owner(new, owner_dname);
 289                         if (!ldns_dname_str_absolute(owner) && origin) {
 290                                 if(ldns_dname_cat(ldns_rr_owner(new),
 291                                                         origin) != LDNS_STATUS_OK) {
 292                                         status = LDNS_STATUS_SYNTAX_ERR;
 293                                         ldns_buffer_free(rr_buf);
 294                                         goto ldnserror;
 295                                 }
 296                         }
 297                         if (prev) {
 298                                 ldns_rdf_deep_free(*prev);
 299                                 *prev = ldns_rdf_clone(ldns_rr_owner(new));
 300                                 if(!*prev) {
 301                                         status = LDNS_STATUS_MEM_ERR;
 302                                         ldns_buffer_free(rr_buf);
 303                                         goto ldnserror;
 304                                 }
 305                         }
 306                 }
 307         }
 308         LDNS_FREE(owner);
 309         owner = NULL;
 310
 311         ldns_rr_set_question(new, question);
 312
 313         ldns_rr_set_ttl(new, ttl_val);
 314         LDNS_FREE(ttl);
 315         ttl = NULL;
 316
 317         ldns_rr_set_class(new, clas_val);
 318         LDNS_FREE(clas);
 319         clas = NULL;
 320
 321         rr_type = ldns_get_rr_type_by_name(type);
 322         LDNS_FREE(type);
 323         type = NULL;
 324
 325         desc = ldns_rr_descript((uint16_t)rr_type);
 326         ldns_rr_set_type(new, rr_type);
 327         if (desc) {
 328                 /* only the rdata remains */
 329                 r_max = ldns_rr_descriptor_maximum(desc);
 330                 r_min = ldns_rr_descriptor_minimum(desc);
 331         } else {
 332                 r_min = 0;
 333                 r_max = 1;
 334         }
 335
 336         /* depending on the rr_type we need to extract
 337          * the rdata differently, e.g. NSEC/NSEC3 */
 338         switch(rr_type) {
 339                 default:
 340                         done = false;
 341
 342                         for (r_cnt = 0; !done && r_cnt < r_max; r_cnt++) {
 343                                 quoted = false;
 344                                 /* if type = B64, the field may contain spaces */
 345                                 if (ldns_rr_descriptor_field_type(desc,
 346                                             r_cnt) == LDNS_RDF_TYPE_B64 ||
 347                                     ldns_rr_descriptor_field_type(desc,
 348                                             r_cnt) == LDNS_RDF_TYPE_HEX ||
 349                                     ldns_rr_descriptor_field_type(desc,
 350                                             r_cnt) == LDNS_RDF_TYPE_LOC ||
 351                                     ldns_rr_descriptor_field_type(desc,
 352                                             r_cnt) == LDNS_RDF_TYPE_WKS ||
 353                                     ldns_rr_descriptor_field_type(desc,
 354                                             r_cnt) == LDNS_RDF_TYPE_IPSECKEY ||
 355                                     ldns_rr_descriptor_field_type(desc,
 356                                             r_cnt) == LDNS_RDF_TYPE_NSEC) {
 357                                         delimiters = "\n\t";
 358                                 } else {
 359                                         delimiters = "\n\t ";
 360                                 }
 361
 362                                 if (ldns_rr_descriptor_field_type(desc,
 363                                                         r_cnt) == LDNS_RDF_TYPE_STR &&
 364                                                         ldns_buffer_remaining(rd_buf) > 0) {
 365                                         /* skip spaces */
 366                                         while (*(ldns_buffer_current(rd_buf)) == ' ') {
 367                                                 ldns_buffer_skip(rd_buf, 1);
 368                                         }
 369
 370                                         if (*(ldns_buffer_current(rd_buf)) == '\"') {
 371                                                 delimiters = "\"\0";
 372                                                 ldns_buffer_skip(rd_buf, 1);
 373                                                 quoted = true;
 374                                         }
 375                                 }
 376
 377                                 /* because number of fields can be variable, we can't
 378                                    rely on _maximum() only */
 379                                 /* skip spaces */
 380                                 while (ldns_buffer_position(rd_buf) < ldns_buffer_limit(rd_buf) &&
 381                                         *(ldns_buffer_current(rd_buf)) == ' ' && !quoted
 382                                       ) {
 383                                         ldns_buffer_skip(rd_buf, 1);
 384                                 }
 385
 386                                 pre_data_pos = ldns_buffer_position(rd_buf);
 387                                 if ((c = ldns_bget_token(rd_buf, rd, delimiters,
 388                                                         LDNS_MAX_RDFLEN)) != -1) {
 389                                         /* hmmz, rfc3597 specifies that any type can be represented with
 390                                          * \# method, which can contain spaces...
 391                                          * it does specify size though...
 392                                          */
 393                                         rd_strlen = strlen(rd);
 394
 395                                         /* unknown RR data */
 396                                         if (strncmp(rd, "\\#", 2) == 0 && !quoted && (rd_strlen == 2 || rd[2]==' ')) {
 397                                                 uint16_t hex_data_size;
 398                                                 char *hex_data_str;
 399                                                 uint16_t cur_hex_data_size;
 400
 401                                                 was_unknown_rr_format = 1;
 402                                                 /* go back to before \# and skip it while setting delimiters better */
 403                                                 ldns_buffer_set_position(rd_buf, pre_data_pos);
 404                                                 delimiters = "\n\t ";
 405                                                 (void)ldns_bget_token(rd_buf, rd, delimiters, LDNS_MAX_RDFLEN);
 406                                                 /* read rdata octet length */
 407                                                 c = ldns_bget_token(rd_buf, rd, delimiters, LDNS_MAX_RDFLEN);
 408                                                 if (c == -1) {
 409                                                         /* something goes very wrong here */
 410                                                         LDNS_FREE(rd);
 411                                                         LDNS_FREE(b64);
 412                                                         ldns_buffer_free(rd_buf);
 413                                                         ldns_buffer_free(rr_buf);
 414                                                         LDNS_FREE(rdata);
 415                                                         ldns_rr_free(new);
 416                                                         return LDNS_STATUS_SYNTAX_RDATA_ERR;
 417                                                 }
 418                                                 hex_data_size = (uint16_t) atoi(rd);
 419                                                 /* copy the hex chars into hex str (which is 2 chars per byte) */
 420                                                 hex_data_str = LDNS_XMALLOC(char, 2 * hex_data_size + 1);
 421                                                 if (!hex_data_str) {
 422                                                         /* malloc error */
 423                                                         LDNS_FREE(rd);
 424                                                         LDNS_FREE(b64);
 425                                                         ldns_buffer_free(rd_buf);
 426                                                         ldns_buffer_free(rr_buf);
 427                                                         LDNS_FREE(rdata);
 428                                                         ldns_rr_free(new);
 429                                                         return LDNS_STATUS_SYNTAX_RDATA_ERR;
 430                                                 }
 431                                                 cur_hex_data_size = 0;
 432                                                 while(cur_hex_data_size < 2 * hex_data_size) {
 433                                                         c = ldns_bget_token(rd_buf, rd, delimiters, LDNS_MAX_RDFLEN);
 434                                                         rd_strlen = strlen(rd);
 435                                                         strncpy(hex_data_str + cur_hex_data_size, rd, rd_strlen);
 436                                                         cur_hex_data_size += rd_strlen;
 437                                                 }
 438                                                 hex_data_str[cur_hex_data_size] = '\0';
 439
 440                                                 /* correct the rdf type */
 441                                                 /* if *we* know the type, interpret it as wireformat */
 442                                                 if (desc) {
 443                                                         size_t hex_pos = 0;
 444                                                         uint8_t *hex_data = LDNS_XMALLOC(uint8_t, hex_data_size + 2);
 445                                                         ldns_status s;
 446                                                         if(!hex_data) {
 447                                                                 LDNS_FREE(hex_data_str);
 448                                                                 LDNS_FREE(rd);
 449                                                                 LDNS_FREE(b64);
 450                                                                 ldns_buffer_free(rd_buf);
 451                                                                 ldns_buffer_free(rr_buf);
 452                                                                 LDNS_FREE(rdata);
 453                                                                 ldns_rr_free(new);
 454                                                                 return LDNS_STATUS_MEM_ERR;
 455                                                         }
 456                                                         ldns_write_uint16(hex_data, hex_data_size);
 457                                                         ldns_hexstring_to_data(hex_data + 2, hex_data_str);
 458                                                         s = ldns_wire2rdf(new, hex_data,
 459                                                                          hex_data_size+2, &hex_pos);
 460                                                         if(s != LDNS_STATUS_OK) {
 461                                                                 LDNS_FREE(hex_data_str);
 462                                                                 LDNS_FREE(rd);
 463                                                                 LDNS_FREE(b64);
 464                                                                 ldns_buffer_free(rd_buf);
 465                                                                 ldns_buffer_free(rr_buf);
 466                                                                 LDNS_FREE(rdata);
 467                                                                 ldns_rr_free(new);
 468                                                                 return s;
 469                                                         }
 470                                                         LDNS_FREE(hex_data);
 471                                                 } else {
 472                                                         r = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_HEX, hex_data_str);
 473                                                         if(!r) {
 474                                                                 LDNS_FREE(hex_data_str);
 475                                                                 LDNS_FREE(rd);
 476                                                                 LDNS_FREE(b64);
 477                                                                 ldns_buffer_free(rd_buf);
 478                                                                 ldns_buffer_free(rr_buf);
 479                                                                 LDNS_FREE(rdata);
 480                                                                 ldns_rr_free(new);
 481                                                                 return LDNS_STATUS_MEM_ERR;
 482                                                         }
 483                                                         ldns_rdf_set_type(r, LDNS_RDF_TYPE_UNKNOWN);
 484                                                         if(!ldns_rr_push_rdf(new, r)) {
 485                                                                 LDNS_FREE(hex_data_str);
 486                                                                 LDNS_FREE(rd);
 487                                                                 LDNS_FREE(b64);
 488                                                                 ldns_buffer_free(rd_buf);
 489                                                                 ldns_buffer_free(rr_buf);
 490                                                                 LDNS_FREE(rdata);
 491                                                                 ldns_rr_free(new);
 492                                                                 return LDNS_STATUS_MEM_ERR;
 493                                                         }
 494                                                 }
 495                                                 LDNS_FREE(hex_data_str);
 496                                         } else {
 497                                                 /* Normal RR */
 498                                                 switch(ldns_rr_descriptor_field_type(desc, r_cnt)) {
 499                                                 case LDNS_RDF_TYPE_HEX:
 500                                                 case LDNS_RDF_TYPE_B64:
 501                                                         /* can have spaces, and will always be the last
 502                                                          * record of the rrdata. Read in the rest */
 503                                                         if ((c = ldns_bget_token(rd_buf,
 504                                                                                                 b64,
 505                                                                                                 "\n",
 506                                                                                                 LDNS_MAX_RDFLEN))
 507                                                             != -1) {
 508                                                                 rd = strncat(rd,
 509                                                                                    b64,
 510                                                                                    LDNS_MAX_RDFLEN
 511                                                                                    - strlen(rd) - 1);
 512                                                         }
 513                                                         r = ldns_rdf_new_frm_str(
 514                                                                         ldns_rr_descriptor_field_type(desc, r_cnt),
 515                                                                         rd);
 516                                                         break;
 517                                                 case LDNS_RDF_TYPE_DNAME:
 518                                                         r = ldns_rdf_new_frm_str(
 519                                                                         ldns_rr_descriptor_field_type(desc, r_cnt),
 520                                                                         rd);
 521
 522                                                         /* check if the origin should be used or concatenated */
 523                                                         if (r && ldns_rdf_size(r) > 1 && ldns_rdf_data(r)[0] == 1
 524                                                                 && ldns_rdf_data(r)[1] == '@') {
 525                                                                 ldns_rdf_deep_free(r);
 526                                                                 if (origin) {
 527                                                                         r = ldns_rdf_clone(origin);
 528                                                                 } else {
 529                                                                      /* if this is the SOA, use its own owner name */
 530                                                                         if (rr_type == LDNS_RR_TYPE_SOA) {
 531                                                                                 r = ldns_rdf_clone(ldns_rr_owner(new));
 532                                                                         } else {
 533                                                                                 r = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_DNAME, ".");
 534                                                                         }
 535                                                                 }
 536                                                         } else if (r && rd_strlen >= 1 && !ldns_dname_str_absolute(rd) && origin) {
 537                                                                 if (ldns_dname_cat(r, origin) != LDNS_STATUS_OK) {
 538                                                                         LDNS_FREE(rd);
 539                                                                         LDNS_FREE(b64);
 540                                                                         ldns_buffer_free(rd_buf);
 541                                                                         ldns_buffer_free(rr_buf);
 542                                                                         LDNS_FREE(rdata);
 543                                                                         ldns_rr_free(new);
 544                                                                         return LDNS_STATUS_ERR;
 545                                                                 }
 546                                                         }
 547                                                         break;
 548                                                 default:
 549                                                         r = ldns_rdf_new_frm_str(
 550                                                                         ldns_rr_descriptor_field_type(desc, r_cnt),
 551                                                                         rd);
 552                                                         break;
 553                                                 }
 554                                                 if (r) {
 555                                                         ldns_rr_push_rdf(new, r);
 556                                                 } else {
 557                                                         LDNS_FREE(rd);
 558                                                         LDNS_FREE(b64);
 559                                                         ldns_buffer_free(rd_buf);
 560                                                         ldns_buffer_free(rr_buf);
 561                                                         LDNS_FREE(rdata);
 562                                                         ldns_rr_free(new);
 563                                                         return LDNS_STATUS_SYNTAX_RDATA_ERR;
 564                                                 }
 565                                         }
 566                                         if (quoted) {
 567                                                 if (ldns_buffer_available(rd_buf, 1)) {
 568                                                         ldns_buffer_skip(rd_buf, 1);
 569                                                 } else {
 570                                                         done = true;
 571                                                 }
 572                                         }
 573                                 } else {
 574                                         done = true;
 575                                 }
 576                         }
 577         }
 578         LDNS_FREE(rd);
 579         LDNS_FREE(b64);
 580         ldns_buffer_free(rd_buf);
 581         ldns_buffer_free(rr_buf);
 582         LDNS_FREE(rdata);
 583
 584         if (!question && desc && !was_unknown_rr_format && ldns_rr_rd_count(new) < r_min) {
 585                 ldns_rr_free(new);
 586                 return LDNS_STATUS_SYNTAX_MISSING_VALUE_ERR;
 587         }
 588
 589         if (newrr) {
 590                 *newrr = new;
 591         }
 592         return LDNS_STATUS_OK;
 593
 594 ldnserror:
 595         LDNS_FREE(type);
 596         LDNS_FREE(owner);
 597         LDNS_FREE(ttl);
 598         LDNS_FREE(clas);
 599         LDNS_FREE(rdata);
 600         LDNS_FREE(rd);
 601         LDNS_FREE(rd_buf);
 602         LDNS_FREE(b64);
 603         ldns_rr_free(new);
 604     return status;
 605 }
 606
 607 ldns_status
 608 ldns_rr_new_frm_str(ldns_rr **newrr, const char *str,
 609                     uint32_t default_ttl, ldns_rdf *origin,
 610                     ldns_rdf **prev)
 611 {
 612         return ldns_rr_new_frm_str_internal(newrr,
 613                                             str,
 614                                             default_ttl,
 615                                             origin,
 616                                             prev,
 617                                             false);
 618 }
 619
 620 ldns_status
 621 ldns_rr_new_question_frm_str(ldns_rr **newrr, const char *str,
 622                              ldns_rdf *origin, ldns_rdf **prev)
 623 {
 624         return ldns_rr_new_frm_str_internal(newrr,
 625                                             str,
 626                                             0,
 627                                             origin,
 628                                             prev,
 629                                             true);
 630 }
 631
 632 ldns_status
 633 ldns_rr_new_frm_fp(ldns_rr **newrr, FILE *fp, uint32_t *ttl, ldns_rdf **origin, ldns_rdf **prev)
 634 {
 635         return ldns_rr_new_frm_fp_l(newrr, fp, ttl, origin, prev, NULL);
 636 }
 637
 638 ldns_status
 639 ldns_rr_new_frm_fp_l(ldns_rr **newrr, FILE *fp, uint32_t *default_ttl, ldns_rdf **origin, ldns_rdf **prev, int *line_nr)
 640 {
 641         char *line;
 642         const char *endptr;  /* unused */
 643         ldns_rr *rr;
 644         uint32_t ttl;
 645         ldns_rdf *tmp;
 646         ldns_status s;
 647         ssize_t size;
 648         int offset = 0;
 649
 650         if (default_ttl) {
 651                 ttl = *default_ttl;
 652         } else {
 653                 ttl = 0;
 654         }
 655
 656         line = LDNS_XMALLOC(char, LDNS_MAX_LINELEN + 1);
 657         if (!line) {
 658                 return LDNS_STATUS_MEM_ERR;
 659         }
 660
 661         /* read an entire line in from the file */
 662         if ((size = ldns_fget_token_l(fp, line, LDNS_PARSE_SKIP_SPACE, LDNS_MAX_LINELEN, line_nr)) == -1) {
 663                 LDNS_FREE(line);
 664                 /* if last line was empty, we are now at feof, which is not
 665                  * always a parse error (happens when for instance last line
 666                  * was a comment)
 667                  */
 668                 return LDNS_STATUS_SYNTAX_ERR;
 669         }
 670
 671         /* we can have the situation, where we've read ok, but still got
 672          * no bytes to play with, in this case size is 0
 673          */
 674         if (size == 0) {
 675                 LDNS_FREE(line);
 676                 return LDNS_STATUS_SYNTAX_EMPTY;
 677         }
 678
 679         if (strncmp(line, "$ORIGIN", 7) == 0 && isspace(line[7])) {
 680                 if (*origin) {
 681                         ldns_rdf_deep_free(*origin);
 682                         *origin = NULL;
 683                 }
 684                 offset = 8;
 685                 while (isspace(line[offset])) {
 686                         offset++;
 687                 }
 688                 tmp = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_DNAME, line + offset);
 689                 if (!tmp) {
 690                         /* could not parse what next to $ORIGIN */
 691                         LDNS_FREE(line);
 692                         return LDNS_STATUS_SYNTAX_DNAME_ERR;
 693                 }
 694                 *origin = tmp;
 695                 s = LDNS_STATUS_SYNTAX_ORIGIN;
 696         } else if (strncmp(line, "$TTL", 4) == 0 && isspace(line[4])) {
 697                 offset = 5;
 698                 while (isspace(line[offset])) {
 699                         offset++;
 700                 }
 701                 if (default_ttl) {
 702                         *default_ttl = ldns_str2period(line + offset, &endptr);
 703                 }
 704                 s = LDNS_STATUS_SYNTAX_TTL;
 705         } else if (strncmp(line, "$INCLUDE", 8) == 0) {
 706                 s = LDNS_STATUS_SYNTAX_INCLUDE;
 707         } else {
 708                 if (origin && *origin) {
 709                         s = ldns_rr_new_frm_str(&rr, (const char*) line, ttl, *origin, prev);
 710                 } else {
 711                         s = ldns_rr_new_frm_str(&rr, (const char*) line, ttl, NULL, prev);
 712                 }
 713         }
 714         LDNS_FREE(line);
 715         if (newrr && s == LDNS_STATUS_OK) {
 716                 *newrr = rr;
 717         }
 718         return s;
 719 }
 720
 721 void
 722 ldns_rr_set_owner(ldns_rr *rr, ldns_rdf *owner)
 723 {
 724         rr->_owner = owner;
 725 }
 726
 727 void
 728 ldns_rr_set_question(ldns_rr *rr, bool question)
 729 {
 730    rr->_rr_question = question;
 731 }
 732
 733 void
 734 ldns_rr_set_ttl(ldns_rr *rr, uint32_t ttl)
 735 {
 736         rr->_ttl = ttl;
 737 }
 738
 739 void
 740 ldns_rr_set_rd_count(ldns_rr *rr, size_t count)
 741 {
 742         rr->_rd_count = count;
 743 }
 744
 745 void
 746 ldns_rr_set_type(ldns_rr *rr, ldns_rr_type rr_type)
 747 {
 748         rr->_rr_type = rr_type;
 749 }
 750
 751 void
 752 ldns_rr_set_class(ldns_rr *rr, ldns_rr_class rr_class)
 753 {
 754         rr->_rr_class = rr_class;
 755 }
 756
 757 ldns_rdf *
 758 ldns_rr_set_rdf(ldns_rr *rr, const ldns_rdf *f, size_t position)
 759 {
 760         size_t rd_count;
 761         ldns_rdf *pop;
 762
 763         rd_count = ldns_rr_rd_count(rr);
 764         if (position < rd_count) {
 765                 /* dicard the old one */
 766                 pop = rr->_rdata_fields[position];
 767                 rr->_rdata_fields[position] = (ldns_rdf*)f;
 768                 return pop;
 769         } else {
 770                 return NULL;
 771         }
 772 }
 773
 774 bool
 775 ldns_rr_push_rdf(ldns_rr *rr, const ldns_rdf *f)
 776 {
 777         size_t rd_count;
 778         ldns_rdf **rdata_fields;
 779
 780         rd_count = ldns_rr_rd_count(rr);
 781
 782         /* grow the array */
 783         rdata_fields = LDNS_XREALLOC(
 784                 rr->_rdata_fields, ldns_rdf *, rd_count + 1);
 785         if (!rdata_fields) {
 786                 return false;
 787         }
 788
 789         /* add the new member */
 790         rr->_rdata_fields = rdata_fields;
 791         rr->_rdata_fields[rd_count] = (ldns_rdf*)f;
 792
 793         ldns_rr_set_rd_count(rr, rd_count + 1);
 794         return true;
 795 }
 796
 797 ldns_rdf *
 798 ldns_rr_pop_rdf(ldns_rr *rr)
 799 {
 800         size_t rd_count;
 801         ldns_rdf *pop;
 802         ldns_rdf** newrd;
 803
 804         rd_count = ldns_rr_rd_count(rr);
 805
 806         if (rd_count == 0) {
 807                 return NULL;
 808         }
 809
 810         pop = rr->_rdata_fields[rd_count - 1];
 811
 812         /* try to shrink the array */
 813         if(rd_count > 1) {
 814                 newrd = LDNS_XREALLOC(
 815                         rr->_rdata_fields, ldns_rdf *, rd_count - 1);
 816                 if(newrd)
 817                         rr->_rdata_fields = newrd;
 818         } else {
 819                 LDNS_FREE(rr->_rdata_fields);
 820         }
 821
 822         ldns_rr_set_rd_count(rr, rd_count - 1);
 823         return pop;
 824 }
 825
 826 ldns_rdf *
 827 ldns_rr_rdf(const ldns_rr *rr, size_t nr)
 828 {
 829         if (nr < ldns_rr_rd_count(rr)) {
 830                 return rr->_rdata_fields[nr];
 831         } else {
 832                 return NULL;
 833         }
 834 }
 835
 836 ldns_rdf *
 837 ldns_rr_owner(const ldns_rr *rr)
 838 {
 839         return rr->_owner;
 840 }
 841
 842 bool
 843 ldns_rr_is_question(const ldns_rr *rr)
 844 {
 845    return rr->_rr_question;
 846 }
 847
 848 uint32_t
 849 ldns_rr_ttl(const ldns_rr *rr)
 850 {
 851         return rr->_ttl;
 852 }
 853
 854 size_t
 855 ldns_rr_rd_count(const ldns_rr *rr)
 856 {
 857         return rr->_rd_count;
 858 }
 859
 860 ldns_rr_type
 861 ldns_rr_get_type(const ldns_rr *rr)
 862 {
 863         return rr->_rr_type;
 864 }
 865
 866 ldns_rr_class
 867 ldns_rr_get_class(const ldns_rr *rr)
 868 {
 869         return rr->_rr_class;
 870 }
 871
 872 /* rr_lists */
 873
 874 size_t
 875 ldns_rr_list_rr_count(const ldns_rr_list *rr_list)
 876 {
 877         if (rr_list) {
 878                 return rr_list->_rr_count;
 879         } else {
 880                 return 0;
 881         }
 882 }
 883
 884 ldns_rr *
 885 ldns_rr_list_set_rr(ldns_rr_list *rr_list, const ldns_rr *r, size_t count)
 886 {
 887         ldns_rr *old;
 888
 889         if (count > ldns_rr_list_rr_count(rr_list)) {
 890                 return NULL;
 891         }
 892
 893         old = ldns_rr_list_rr(rr_list, count);
 894
 895         /* overwrite old's pointer */
 896         rr_list->_rrs[count] = (ldns_rr*)r;
 897         return old;
 898 }
 899
 900 void
 901 ldns_rr_list_set_rr_count(ldns_rr_list *rr_list, size_t count)
 902 {
 903         assert(count <= rr_list->_rr_capacity);
 904         rr_list->_rr_count = count;
 905 }
 906
 907 ldns_rr *
 908 ldns_rr_list_rr(const ldns_rr_list *rr_list, size_t nr)
 909 {
 910         if (nr < ldns_rr_list_rr_count(rr_list)) {
 911                 return rr_list->_rrs[nr];
 912         } else {
 913                 return NULL;
 914         }
 915 }
 916
 917 ldns_rr_list *
 918 ldns_rr_list_new()
 919 {
 920         ldns_rr_list *rr_list = LDNS_MALLOC(ldns_rr_list);
 921         if(!rr_list) return NULL;
 922         rr_list->_rr_count = 0;
 923         rr_list->_rr_capacity = 0;
 924         rr_list->_rrs = NULL;
 925         return rr_list;
 926 }
 927
 928 void
 929 ldns_rr_list_free(ldns_rr_list *rr_list)
 930 {
 931         if (rr_list) {
 932                 LDNS_FREE(rr_list->_rrs);
 933                 LDNS_FREE(rr_list);
 934         }
 935 }
 936
 937 void
 938 ldns_rr_list_deep_free(ldns_rr_list *rr_list)
 939 {
 940         size_t i;
 941
 942         if (rr_list) {
 943                 for (i=0; i < ldns_rr_list_rr_count(rr_list); i++) {
 944                         ldns_rr_free(ldns_rr_list_rr(rr_list, i));
 945                 }
 946                 LDNS_FREE(rr_list->_rrs);
 947                 LDNS_FREE(rr_list);
 948         }
 949 }
 950
 951
 952 /* add right to left. So we modify *left! */
 953 bool
 954 ldns_rr_list_cat(ldns_rr_list *left, ldns_rr_list *right)
 955 {
 956         size_t r_rr_count;
 957         size_t i;
 958
 959         if (!left) {
 960                 return false;
 961         }
 962
 963         if (right) {
 964                 r_rr_count = ldns_rr_list_rr_count(right);
 965         } else {
 966                 r_rr_count = 0;
 967         }
 968
 969         /* push right to left */
 970         for(i = 0; i < r_rr_count; i++) {
 971                 ldns_rr_list_push_rr(left, ldns_rr_list_rr(right, i));
 972         }
 973         return true;
 974 }
 975
 976 ldns_rr_list *
 977 ldns_rr_list_cat_clone(ldns_rr_list *left, ldns_rr_list *right)
 978 {
 979         size_t l_rr_count;
 980         size_t r_rr_count;
 981         size_t i;
 982         ldns_rr_list *cat;
 983
 984         if (left) {
 985                 l_rr_count = ldns_rr_list_rr_count(left);
 986         } else {
 987                 return ldns_rr_list_clone(right);
 988         }
 989
 990         if (right) {
 991                 r_rr_count = ldns_rr_list_rr_count(right);
 992         } else {
 993                 r_rr_count = 0;
 994         }
 995
 996         cat = ldns_rr_list_new();
 997
 998         if (!cat) {
 999                 return NULL;
1000         }
1001
1002         /* left */
1003         for(i = 0; i < l_rr_count; i++) {
1004                 ldns_rr_list_push_rr(cat,
1005                                 ldns_rr_clone(ldns_rr_list_rr(left, i)));
1006         }
1007         /* right */
1008         for(i = 0; i < r_rr_count; i++) {
1009                 ldns_rr_list_push_rr(cat,
1010                                 ldns_rr_clone(ldns_rr_list_rr(right, i)));
1011         }
1012         return cat;
1013 }
1014
1015 ldns_rr_list *
1016 ldns_rr_list_subtype_by_rdf(ldns_rr_list *l, ldns_rdf *r, size_t pos)
1017 {
1018         size_t i;
1019         ldns_rr_list *subtyped;
1020         ldns_rdf *list_rdf;
1021
1022         subtyped = ldns_rr_list_new();
1023
1024         for(i = 0; i < ldns_rr_list_rr_count(l); i++) {
1025                 list_rdf = ldns_rr_rdf(
1026                         ldns_rr_list_rr(l, i),
1027                         pos);
1028                 if (!list_rdf) {
1029                         /* pos is too large or any other error */
1030                         ldns_rr_list_deep_free(subtyped);
1031                         return NULL;
1032                 }
1033
1034                 if (ldns_rdf_compare(list_rdf, r) == 0) {
1035                         /* a match */
1036                         ldns_rr_list_push_rr(subtyped,
1037                                         ldns_rr_clone(ldns_rr_list_rr(l, i)));
1038                 }
1039         }
1040
1041         if (ldns_rr_list_rr_count(subtyped) > 0) {
1042                 return subtyped;
1043         } else {
1044                 ldns_rr_list_free(subtyped);
1045                 return NULL;
1046         }
1047 }
1048
1049 bool
1050 ldns_rr_list_push_rr(ldns_rr_list *rr_list, const ldns_rr *rr)
1051 {
1052         size_t rr_count;
1053         size_t cap;
1054
1055         rr_count = ldns_rr_list_rr_count(rr_list);
1056         cap = rr_list->_rr_capacity;
1057
1058         /* grow the array */
1059         if(rr_count+1 > cap) {
1060                 ldns_rr **rrs;
1061
1062                 if(cap == 0)
1063                         cap = LDNS_RRLIST_INIT;  /* initial list size */
1064                 else    cap *= 2;
1065                 rrs = LDNS_XREALLOC(rr_list->_rrs, ldns_rr *, cap);
1066                 if (!rrs) {
1067                         return false;
1068                 }
1069                 rr_list->_rrs = rrs;
1070                 rr_list->_rr_capacity = cap;
1071         }
1072
1073         /* add the new member */
1074         rr_list->_rrs[rr_count] = (ldns_rr*)rr;
1075
1076         ldns_rr_list_set_rr_count(rr_list, rr_count + 1);
1077         return true;
1078 }
1079
1080 bool
1081 ldns_rr_list_push_rr_list(ldns_rr_list *rr_list, const ldns_rr_list *push_list)
1082 {
1083         size_t i;
1084
1085         for(i = 0; i < ldns_rr_list_rr_count(push_list); i++) {
1086                 if (!ldns_rr_list_push_rr(rr_list,
1087                                 ldns_rr_list_rr(push_list, i))) {
1088                         return false;
1089                 }
1090         }
1091         return true;
1092 }
1093
1094 ldns_rr *
1095 ldns_rr_list_pop_rr(ldns_rr_list *rr_list)
1096 {
1097         size_t rr_count;
1098         size_t cap;
1099         ldns_rr *pop;
1100
1101         rr_count = ldns_rr_list_rr_count(rr_list);
1102
1103         if (rr_count == 0) {
1104                 return NULL;
1105         }
1106
1107         cap = rr_list->_rr_capacity;
1108         pop = ldns_rr_list_rr(rr_list, rr_count - 1);
1109
1110         /* shrink the array */
1111         if(cap > LDNS_RRLIST_INIT && rr_count-1 <= cap/2) {
1112                 ldns_rr** a;
1113                 cap /= 2;
1114                 a = LDNS_XREALLOC(rr_list->_rrs, ldns_rr *, cap);
1115                 if(a) {
1116                         rr_list->_rrs = a;
1117                         rr_list->_rr_capacity = cap;
1118                 }
1119         }
1120
1121         ldns_rr_list_set_rr_count(rr_list, rr_count - 1);
1122
1123         return pop;
1124 }
1125
1126 ldns_rr_list *
1127 ldns_rr_list_pop_rr_list(ldns_rr_list *rr_list, size_t howmany)
1128 {
1129         /* pop a number of rr's and put them in a rr_list */
1130         ldns_rr_list *popped;
1131         ldns_rr *p;
1132         size_t i = howmany;
1133
1134         popped = ldns_rr_list_new();
1135
1136         if (!popped) {
1137                 return NULL;
1138         }
1139
1140
1141         while(i > 0 &&
1142                         (p = ldns_rr_list_pop_rr(rr_list)) != NULL) {
1143                 ldns_rr_list_push_rr(popped, p);
1144                 i--;
1145         }
1146
1147         if (i == howmany) {
1148                 return NULL;
1149         } else {
1150                 return popped;
1151         }
1152 }
1153
1154
1155 bool
1156 ldns_rr_list_contains_rr(const ldns_rr_list *rr_list, ldns_rr *rr)
1157 {
1158         size_t i;
1159
1160         if (!rr_list || !rr || ldns_rr_list_rr_count(rr_list) == 0) {
1161                 return false;
1162         }
1163
1164         for (i = 0; i < ldns_rr_list_rr_count(rr_list); i++) {
1165                 if (rr == ldns_rr_list_rr(rr_list, i)) {
1166                         return true;
1167                 } else if (ldns_rr_compare(rr, ldns_rr_list_rr(rr_list, i)) == 0) {
1168                         return true;
1169                 }
1170         }
1171         return false;
1172 }
1173
1174 bool
1175 ldns_is_rrset(ldns_rr_list *rr_list)
1176 {
1177         ldns_rr_type t;
1178         ldns_rr_class c;
1179         ldns_rdf *o;
1180         ldns_rr *tmp;
1181         size_t i;
1182
1183         if (!rr_list || ldns_rr_list_rr_count(rr_list) == 0) {
1184                 return false;
1185         }
1186
1187         tmp = ldns_rr_list_rr(rr_list, 0);
1188
1189         t = ldns_rr_get_type(tmp);
1190         c = ldns_rr_get_class(tmp);
1191         o = ldns_rr_owner(tmp);
1192
1193         /* compare these with the rest of the rr_list, start with 1 */
1194         for (i = 1; i < ldns_rr_list_rr_count(rr_list); i++) {
1195                 tmp = ldns_rr_list_rr(rr_list, i);
1196                 if (t != ldns_rr_get_type(tmp)) {
1197                         return false;
1198                 }
1199                 if (c != ldns_rr_get_class(tmp)) {
1200                         return false;
1201                 }
1202                 if (ldns_rdf_compare(o, ldns_rr_owner(tmp)) != 0) {
1203                         return false;
1204                 }
1205         }
1206         return true;
1207 }
1208
1209 bool
1210 ldns_rr_set_push_rr(ldns_rr_list *rr_list, ldns_rr *rr)
1211 {
1212         size_t rr_count;
1213         size_t i;
1214         ldns_rr *last;
1215
1216         assert(rr != NULL);
1217
1218         rr_count = ldns_rr_list_rr_count(rr_list);
1219
1220         if (rr_count == 0) {
1221                 /* nothing there, so checking it is
1222                  * not needed */
1223                 return ldns_rr_list_push_rr(rr_list, rr);
1224         } else {
1225                 /* check with the final rr in the rr_list */
1226                 last = ldns_rr_list_rr(rr_list, rr_count - 1);
1227
1228                 if (ldns_rr_get_class(last) != ldns_rr_get_class(rr)) {
1229                         return false;
1230                 }
1231                 if (ldns_rr_get_type(last) != ldns_rr_get_type(rr)) {
1232                         return false;
1233                 }
1234                 /* only check if not equal to RRSIG */
1235                 if (ldns_rr_get_type(rr) != LDNS_RR_TYPE_RRSIG) {
1236                         if (ldns_rr_ttl(last) != ldns_rr_ttl(rr)) {
1237                                 return false;
1238                         }
1239                 }
1240                 if (ldns_rdf_compare(ldns_rr_owner(last),
1241                                         ldns_rr_owner(rr)) != 0) {
1242                         return false;
1243                 }
1244                 /* ok, still alive - check if the rr already
1245                  * exists - if so, dont' add it */
1246                 for(i = 0; i < rr_count; i++) {
1247                         if(ldns_rr_compare(
1248                                         ldns_rr_list_rr(rr_list, i), rr) == 0) {
1249                                 return false;
1250                         }
1251                 }
1252                 /* it's safe, push it */
1253                 return ldns_rr_list_push_rr(rr_list, rr);
1254         }
1255 }
1256
1257 ldns_rr *
1258 ldns_rr_set_pop_rr(ldns_rr_list *rr_list)
1259 {
1260         return ldns_rr_list_pop_rr(rr_list);
1261 }
1262
1263 ldns_rr_list *
1264 ldns_rr_list_pop_rrset(ldns_rr_list *rr_list)
1265 {
1266         ldns_rr_list *rrset;
1267         ldns_rr *last_rr = NULL;
1268         ldns_rr *next_rr;
1269
1270         if (!rr_list) {
1271                 return NULL;
1272         }
1273
1274         rrset = ldns_rr_list_new();
1275         if (!last_rr) {
1276                 last_rr = ldns_rr_list_pop_rr(rr_list);
1277                 if (!last_rr) {
1278                         ldns_rr_list_free(rrset);
1279                         return NULL;
1280                 } else {
1281                         ldns_rr_list_push_rr(rrset, last_rr);
1282                 }
1283         }
1284
1285         if (ldns_rr_list_rr_count(rr_list) > 0) {
1286                 next_rr = ldns_rr_list_rr(rr_list, ldns_rr_list_rr_count(rr_list) - 1);
1287         } else {
1288                 next_rr = NULL;
1289         }
1290
1291         while (next_rr) {
1292                 if (
1293                         ldns_rdf_compare(ldns_rr_owner(next_rr),
1294                                          ldns_rr_owner(last_rr)) == 0
1295                         &&
1296                         ldns_rr_get_type(next_rr) == ldns_rr_get_type(last_rr)
1297                         &&
1298                         ldns_rr_get_class(next_rr) == ldns_rr_get_class(last_rr)
1299                    ) {
1300                         ldns_rr_list_push_rr(rrset, ldns_rr_list_pop_rr(rr_list));
1301                         if (ldns_rr_list_rr_count(rr_list) > 0) {
1302                                 last_rr = next_rr;
1303                                 next_rr = ldns_rr_list_rr(rr_list, ldns_rr_list_rr_count(rr_list) - 1);
1304                         } else {
1305                                 next_rr = NULL;
1306                         }
1307                 } else {
1308                         next_rr = NULL;
1309                 }
1310         }
1311
1312         return rrset;
1313 }
1314
1315 ldns_rr *
1316 ldns_rr_clone(const ldns_rr *rr)
1317 {
1318         size_t i;
1319         ldns_rr *new_rr;
1320
1321         if (!rr) {
1322                 return NULL;
1323         }
1324
1325         new_rr = ldns_rr_new();
1326         if (!new_rr) {
1327                 return NULL;
1328         }
1329         if (ldns_rr_owner(rr)) {
1330                 ldns_rr_set_owner(new_rr, ldns_rdf_clone(ldns_rr_owner(rr)));
1331         }
1332         ldns_rr_set_ttl(new_rr, ldns_rr_ttl(rr));
1333         ldns_rr_set_type(new_rr, ldns_rr_get_type(rr));
1334         ldns_rr_set_class(new_rr, ldns_rr_get_class(rr));
1335         ldns_rr_set_question(new_rr, ldns_rr_is_question(rr));
1336
1337         for (i = 0; i < ldns_rr_rd_count(rr); i++) {
1338                 if (ldns_rr_rdf(rr,i)) {
1339                         ldns_rr_push_rdf(new_rr, ldns_rdf_clone(ldns_rr_rdf(rr, i)));
1340                 }
1341         }
1342
1343         return new_rr;
1344 }
1345
1346 ldns_rr_list *
1347 ldns_rr_list_clone(const ldns_rr_list *rrlist)
1348 {
1349         size_t i;
1350         ldns_rr_list *new_list;
1351         ldns_rr *r;
1352
1353         if (!rrlist) {
1354                 return NULL;
1355         }
1356
1357         new_list = ldns_rr_list_new();
1358         if (!new_list) {
1359                 return NULL;
1360         }
1361         for (i = 0; i < ldns_rr_list_rr_count(rrlist); i++) {
1362                 r = ldns_rr_clone(
1363                         ldns_rr_list_rr(rrlist, i)
1364                     );
1365                 if (!r) {
1366                         /* huh, failure in cloning */
1367                         ldns_rr_list_deep_free(new_list);
1368                         return NULL;
1369                 }
1370                 ldns_rr_list_push_rr(new_list, r);
1371         }
1372         return new_list;
1373 }
1374
1375
1376 int
1377 qsort_rr_compare(const void *a, const void *b)
1378 {
1379         const ldns_rr *rr1 = * (const ldns_rr **) a;
1380         const ldns_rr *rr2 = * (const ldns_rr **) b;
1381
1382         if (rr1 == NULL && rr2 == NULL) {
1383                 return 0;
1384         }
1385         if (rr1 == NULL) {
1386                 return -1;
1387         }
1388         if (rr2 == NULL) {
1389                 return 1;
1390         }
1391         return ldns_rr_compare(rr1, rr2);
1392 }
1393
1394 int
1395 qsort_schwartz_rr_compare(const void *a, const void *b)
1396 {
1397         int result = 0;
1398         ldns_rr *rr1, *rr2;
1399         ldns_buffer *rr1_buf, *rr2_buf;
1400         struct ldns_schwartzian_compare_struct *sa = *(struct ldns_schwartzian_compare_struct **) a;
1401         struct ldns_schwartzian_compare_struct *sb = *(struct ldns_schwartzian_compare_struct **) b;
1402         /* if we are doing 2wire, we need to do lowercasing on the dname (and maybe on the rdata)
1403          * this must be done for comparison only, so we need to have a temp var for both buffers,
1404          * which is only used when the transformed object value isn't there yet
1405          */
1406         ldns_rr *canonical_a, *canonical_b;
1407
1408         rr1 = (ldns_rr *) sa->original_object;
1409         rr2 = (ldns_rr *) sb->original_object;
1410
1411         result = ldns_rr_compare_no_rdata(rr1, rr2);
1412
1413         if (result == 0) {
1414                 if (!sa->transformed_object) {
1415                         canonical_a = ldns_rr_clone(sa->original_object);
1416                         ldns_rr2canonical(canonical_a);
1417                         sa->transformed_object = ldns_buffer_new(ldns_rr_uncompressed_size(canonical_a));
1418                         if (ldns_rr2buffer_wire(sa->transformed_object, canonical_a, LDNS_SECTION_ANY) != LDNS_STATUS_OK) {
1419                                 ldns_buffer_free((ldns_buffer *)sa->transformed_object);
1420                                 sa->transformed_object = NULL;
1421                                 ldns_rr_free(canonical_a);
1422                                 return 0;
1423                         }
1424                         ldns_rr_free(canonical_a);
1425                 }
1426                 if (!sb->transformed_object) {
1427                         canonical_b = ldns_rr_clone(sb->original_object);
1428                         ldns_rr2canonical(canonical_b);
1429                         sb->transformed_object = ldns_buffer_new(ldns_rr_uncompressed_size(canonical_b));
1430                         if (ldns_rr2buffer_wire(sb->transformed_object, canonical_b, LDNS_SECTION_ANY) != LDNS_STATUS_OK) {
1431                                 ldns_buffer_free((ldns_buffer *)sa->transformed_object);
1432                                 ldns_buffer_free((ldns_buffer *)sb->transformed_object);
1433                                 sa->transformed_object = NULL;
1434                                 sb->transformed_object = NULL;
1435                                 ldns_rr_free(canonical_b);
1436                                 return 0;
1437                         }
1438                         ldns_rr_free(canonical_b);
1439                 }
1440                 rr1_buf = (ldns_buffer *) sa->transformed_object;
1441                 rr2_buf = (ldns_buffer *) sb->transformed_object;
1442
1443                 result = ldns_rr_compare_wire(rr1_buf, rr2_buf);
1444         }
1445
1446         return result;
1447 }
1448
1449 void
1450 ldns_rr_list_sort(ldns_rr_list *unsorted)
1451 {
1452         struct ldns_schwartzian_compare_struct **sortables;
1453         size_t item_count;
1454         size_t i;
1455
1456         if (unsorted) {
1457                 item_count = ldns_rr_list_rr_count(unsorted);
1458
1459                 sortables = LDNS_XMALLOC(struct ldns_schwartzian_compare_struct *,
1460                                          item_count);
1461                 if(!sortables) return; /* no way to return error */
1462                 for (i = 0; i < item_count; i++) {
1463                         sortables[i] = LDNS_XMALLOC(struct ldns_schwartzian_compare_struct, 1);
1464                         if(!sortables[i]) {
1465                                 /* free the allocated parts */
1466                                 while(i>0) {
1467                                         i--;
1468                                         LDNS_FREE(sortables[i]);
1469                                 }
1470                                 /* no way to return error */
1471                                 return;
1472                         }
1473                         sortables[i]->original_object = ldns_rr_list_rr(unsorted, i);
1474                         sortables[i]->transformed_object = NULL;
1475                 }
1476                 qsort(sortables,
1477                       item_count,
1478                       sizeof(struct ldns_schwartzian_compare_struct *),
1479                       qsort_schwartz_rr_compare);
1480                 for (i = 0; i < item_count; i++) {
1481                         unsorted->_rrs[i] = sortables[i]->original_object;
1482                         if (sortables[i]->transformed_object) {
1483                                 ldns_buffer_free(sortables[i]->transformed_object);
1484                         }
1485                         LDNS_FREE(sortables[i]);
1486                 }
1487                 LDNS_FREE(sortables);
1488         }
1489 }
1490
1491 int
1492 ldns_rr_compare_no_rdata(const ldns_rr *rr1, const ldns_rr *rr2)
1493 {
1494         size_t rr1_len;
1495         size_t rr2_len;
1496         size_t offset;
1497
1498         assert(rr1 != NULL);
1499         assert(rr2 != NULL);
1500
1501         rr1_len = ldns_rr_uncompressed_size(rr1);
1502         rr2_len = ldns_rr_uncompressed_size(rr2);
1503
1504         if (ldns_dname_compare(ldns_rr_owner(rr1), ldns_rr_owner(rr2)) < 0) {
1505                 return -1;
1506         } else if (ldns_dname_compare(ldns_rr_owner(rr1), ldns_rr_owner(rr2)) > 0) {
1507                 return 1;
1508         }
1509
1510         /* should return -1 if rr1 comes before rr2, so need to do rr1 - rr2, not rr2 - rr1 */
1511         if (ldns_rr_get_class(rr1) != ldns_rr_get_class(rr2)) {
1512             return ldns_rr_get_class(rr1) - ldns_rr_get_class(rr2);
1513         }
1514
1515         /* should return -1 if rr1 comes before rr2, so need to do rr1 - rr2, not rr2 - rr1 */
1516         if (ldns_rr_get_type(rr1) != ldns_rr_get_type(rr2)) {
1517             return ldns_rr_get_type(rr1) - ldns_rr_get_type(rr2);
1518         }
1519
1520         /* offset is the owername length + ttl + type + class + rdlen == start of wire format rdata */
1521         offset = ldns_rdf_size(ldns_rr_owner(rr1)) + 4 + 2 + 2 + 2;
1522         /* if either record doesn't have any RDATA... */
1523         if (offset > rr1_len || offset > rr2_len) {
1524             if (rr1_len == rr2_len) {
1525               return 0;
1526             }
1527             return ((int) rr2_len - (int) rr1_len);
1528         }
1529
1530         return 0;
1531 }
1532
1533 int ldns_rr_compare_wire(ldns_buffer *rr1_buf, ldns_buffer *rr2_buf)
1534 {
1535         size_t rr1_len, rr2_len, min_len, i, offset;
1536
1537         rr1_len = ldns_buffer_capacity(rr1_buf);
1538         rr2_len = ldns_buffer_capacity(rr2_buf);
1539
1540         /* jump past dname (checked in earlier part)
1541          * and especially past TTL */
1542         offset = 0;
1543         while (offset < rr1_len && *ldns_buffer_at(rr1_buf, offset) != 0) {
1544           offset += *ldns_buffer_at(rr1_buf, offset) + 1;
1545         }
1546         /* jump to rdata section (PAST the rdata length field, otherwise
1547            rrs with different lengths might be sorted erroneously */
1548         offset += 11;
1549            min_len = (rr1_len < rr2_len) ? rr1_len : rr2_len;
1550         /* Compare RRs RDATA byte for byte. */
1551         for(i = offset; i < min_len; i++) {
1552                 if (*ldns_buffer_at(rr1_buf,i) < *ldns_buffer_at(rr2_buf,i)) {
1553                         return -1;
1554                 } else if (*ldns_buffer_at(rr1_buf,i) > *ldns_buffer_at(rr2_buf,i)) {
1555                         return +1;
1556                 }
1557         }
1558
1559         /* If both RDATAs are the same up to min_len, then the shorter one sorts first. */
1560         if (rr1_len < rr2_len) {
1561                 return -1;
1562         } else if (rr1_len > rr2_len) {
1563                 return +1;
1564         }
1565         /* The RDATAs are equal. */
1566         return 0;
1567
1568 }
1569
1570 int
1571 ldns_rr_compare(const ldns_rr *rr1, const ldns_rr *rr2)
1572 {
1573         int result;
1574         size_t rr1_len, rr2_len;
1575
1576         ldns_buffer *rr1_buf;
1577         ldns_buffer *rr2_buf;
1578
1579         result = ldns_rr_compare_no_rdata(rr1, rr2);
1580         if (result == 0) {
1581                 rr1_len = ldns_rr_uncompressed_size(rr1);
1582                 rr2_len = ldns_rr_uncompressed_size(rr2);
1583
1584                 rr1_buf = ldns_buffer_new(rr1_len);
1585                 rr2_buf = ldns_buffer_new(rr2_len);
1586
1587                 if (ldns_rr2buffer_wire_canonical(rr1_buf,
1588                                                                     rr1,
1589                                                                     LDNS_SECTION_ANY)
1590                     != LDNS_STATUS_OK) {
1591                         ldns_buffer_free(rr1_buf);
1592                         ldns_buffer_free(rr2_buf);
1593                         return 0;
1594                 }
1595                 if (ldns_rr2buffer_wire_canonical(rr2_buf,
1596                                                                     rr2,
1597                                                                     LDNS_SECTION_ANY)
1598                     != LDNS_STATUS_OK) {
1599                         ldns_buffer_free(rr1_buf);
1600                         ldns_buffer_free(rr2_buf);
1601                         return 0;
1602                 }
1603
1604                 result = ldns_rr_compare_wire(rr1_buf, rr2_buf);
1605
1606                 ldns_buffer_free(rr1_buf);
1607                 ldns_buffer_free(rr2_buf);
1608         }
1609
1610         return result;
1611 }
1612
1613 /* convert dnskey to a ds with the given algorithm,
1614  * then compare the result with the given ds */
1615 static int
1616 ldns_rr_compare_ds_dnskey(ldns_rr *ds,
1617                           ldns_rr *dnskey)
1618 {
1619         ldns_rr *ds_gen;
1620         bool result = false;
1621         ldns_hash algo;
1622
1623         if (!dnskey || !ds ||
1624             ldns_rr_get_type(ds) != LDNS_RR_TYPE_DS ||
1625             ldns_rr_get_type(dnskey) != LDNS_RR_TYPE_DNSKEY) {
1626                 return false;
1627         }
1628
1629 algo = ldns_rdf2native_int8(ldns_rr_rdf(ds, 2));
1630
1631         ds_gen = ldns_key_rr2ds(dnskey, algo);
1632         if (ds_gen) {
1633                 result = ldns_rr_compare(ds, ds_gen) == 0;
1634                 ldns_rr_free(ds_gen);
1635         }
1636         return result;
1637 }
1638
1639 bool
1640 ldns_rr_compare_ds(const ldns_rr *orr1, const ldns_rr *orr2)
1641 {
1642         bool result;
1643         ldns_rr *rr1 = ldns_rr_clone(orr1);
1644         ldns_rr *rr2 = ldns_rr_clone(orr2);
1645
1646         /* set ttls to zero */
1647         ldns_rr_set_ttl(rr1, 0);
1648         ldns_rr_set_ttl(rr2, 0);
1649
1650         if (ldns_rr_get_type(rr1) == LDNS_RR_TYPE_DS &&
1651             ldns_rr_get_type(rr2) == LDNS_RR_TYPE_DNSKEY) {
1652                 result = ldns_rr_compare_ds_dnskey(rr1, rr2);
1653         } else if (ldns_rr_get_type(rr1) == LDNS_RR_TYPE_DNSKEY &&
1654             ldns_rr_get_type(rr2) == LDNS_RR_TYPE_DS) {
1655                 result = ldns_rr_compare_ds_dnskey(rr2, rr1);
1656         } else {
1657                 result = (ldns_rr_compare(rr1, rr2) == 0);
1658         }
1659
1660         ldns_rr_free(rr1);
1661         ldns_rr_free(rr2);
1662
1663         return result;
1664 }
1665
1666 int
1667 ldns_rr_list_compare(const ldns_rr_list *rrl1, const ldns_rr_list *rrl2)
1668 {
1669         size_t i = 0;
1670         int rr_cmp;
1671
1672         assert(rrl1 != NULL);
1673         assert(rrl2 != NULL);
1674
1675         for (i = 0; i < ldns_rr_list_rr_count(rrl1) && i < ldns_rr_list_rr_count(rrl2); i++) {
1676                 rr_cmp = ldns_rr_compare(ldns_rr_list_rr(rrl1, i), ldns_rr_list_rr(rrl2, i));
1677                 if (rr_cmp != 0) {
1678                         return rr_cmp;
1679                 }
1680         }
1681
1682         if (i == ldns_rr_list_rr_count(rrl1) &&
1683             i != ldns_rr_list_rr_count(rrl2)) {
1684                 return 1;
1685         } else if (i == ldns_rr_list_rr_count(rrl2) &&
1686                    i != ldns_rr_list_rr_count(rrl1)) {
1687                 return -1;
1688         } else {
1689                 return 0;
1690         }
1691 }
1692
1693 size_t
1694 ldns_rr_uncompressed_size(const ldns_rr *r)
1695 {
1696         size_t rrsize;
1697         size_t i;
1698
1699         rrsize = 0;
1700         /* add all the rdf sizes */
1701         for(i = 0; i < ldns_rr_rd_count(r); i++) {
1702                 rrsize += ldns_rdf_size(ldns_rr_rdf(r, i));
1703         }
1704         /* ownername */
1705         rrsize += ldns_rdf_size(ldns_rr_owner(r));
1706         rrsize += LDNS_RR_OVERHEAD;
1707         return rrsize;
1708 }
1709
1710 void
1711 ldns_rr2canonical(ldns_rr *rr)
1712 {
1713         uint16_t i;
1714
1715         if (!rr) {
1716           return;
1717         }
1718
1719         ldns_dname2canonical(ldns_rr_owner(rr));
1720
1721         /*
1722          * lowercase the rdata dnames if the rr type is one
1723          * of the list in chapter 7 of RFC3597
1724          */
1725         switch(ldns_rr_get_type(rr)) {
1726                 case LDNS_RR_TYPE_NS:
1727                 case LDNS_RR_TYPE_MD:
1728                 case LDNS_RR_TYPE_MF:
1729                 case LDNS_RR_TYPE_CNAME:
1730                 case LDNS_RR_TYPE_SOA:
1731                 case LDNS_RR_TYPE_MB:
1732                 case LDNS_RR_TYPE_MG:
1733                 case LDNS_RR_TYPE_MR:
1734                 case LDNS_RR_TYPE_PTR:
1735                 case LDNS_RR_TYPE_HINFO:
1736                 case LDNS_RR_TYPE_MINFO:
1737                 case LDNS_RR_TYPE_MX:
1738                 case LDNS_RR_TYPE_RP:
1739                 case LDNS_RR_TYPE_AFSDB:
1740                 case LDNS_RR_TYPE_RT:
1741                 case LDNS_RR_TYPE_SIG:
1742                 case LDNS_RR_TYPE_PX:
1743                 case LDNS_RR_TYPE_NXT:
1744                 case LDNS_RR_TYPE_NAPTR:
1745                 case LDNS_RR_TYPE_KX:
1746                 case LDNS_RR_TYPE_SRV:
1747                 case LDNS_RR_TYPE_DNAME:
1748                 case LDNS_RR_TYPE_A6:
1749                         for (i = 0; i < ldns_rr_rd_count(rr); i++) {
1750                                 ldns_dname2canonical(ldns_rr_rdf(rr, i));
1751                         }
1752                         return;
1753                 default:
1754                         /* do nothing */
1755                         return;
1756         }
1757 }
1758
1759 void
1760 ldns_rr_list2canonical(ldns_rr_list *rr_list)
1761 {
1762         size_t i;
1763         for (i = 0; i < ldns_rr_list_rr_count(rr_list); i++) {
1764                 ldns_rr2canonical(ldns_rr_list_rr(rr_list, i));
1765         }
1766 }
1767
1768 uint8_t
1769 ldns_rr_label_count(ldns_rr *rr)
1770 {
1771         if (!rr) {
1772                 return 0;
1773         }
1774         return ldns_dname_label_count(
1775                         ldns_rr_owner(rr));
1776 }
1777
1778 /** \cond */
1779 static const ldns_rdf_type type_0_wireformat[] = { LDNS_RDF_TYPE_UNKNOWN };
1780 static const ldns_rdf_type type_a_wireformat[] = { LDNS_RDF_TYPE_A };
1781 static const ldns_rdf_type type_ns_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1782 static const ldns_rdf_type type_md_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1783 static const ldns_rdf_type type_mf_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1784 static const ldns_rdf_type type_cname_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1785 static const ldns_rdf_type type_soa_wireformat[] = {
1786         LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_INT32,
1787         LDNS_RDF_TYPE_PERIOD, LDNS_RDF_TYPE_PERIOD, LDNS_RDF_TYPE_PERIOD,
1788         LDNS_RDF_TYPE_PERIOD
1789 };
1790 static const ldns_rdf_type type_mb_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1791 static const ldns_rdf_type type_mg_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1792 static const ldns_rdf_type type_mr_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1793 static const ldns_rdf_type type_wks_wireformat[] = {
1794         LDNS_RDF_TYPE_A, LDNS_RDF_TYPE_WKS
1795 };
1796 static const ldns_rdf_type type_ptr_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1797 static const ldns_rdf_type type_hinfo_wireformat[] = {
1798         LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_STR
1799 };
1800 static const ldns_rdf_type type_minfo_wireformat[] = {
1801         LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_DNAME
1802 };
1803 static const ldns_rdf_type type_mx_wireformat[] = {
1804         LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME
1805 };
1806 static const ldns_rdf_type type_rp_wireformat[] = {
1807         LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_DNAME
1808 };
1809 static const ldns_rdf_type type_afsdb_wireformat[] = {
1810         LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME
1811 };
1812 static const ldns_rdf_type type_x25_wireformat[] = { LDNS_RDF_TYPE_STR };
1813 static const ldns_rdf_type type_isdn_wireformat[] = {
1814         LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_STR
1815 };
1816 static const ldns_rdf_type type_rt_wireformat[] = {
1817         LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME
1818 };
1819 static const ldns_rdf_type type_nsap_wireformat[] = {
1820         LDNS_RDF_TYPE_NSAP
1821 };
1822 static const ldns_rdf_type type_nsap_ptr_wireformat[] = {
1823         LDNS_RDF_TYPE_STR
1824 };
1825 static const ldns_rdf_type type_sig_wireformat[] = {
1826         LDNS_RDF_TYPE_TYPE, LDNS_RDF_TYPE_ALG, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT32,
1827         LDNS_RDF_TYPE_TIME, LDNS_RDF_TYPE_TIME, LDNS_RDF_TYPE_INT16,
1828         LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_B64
1829 };
1830 static const ldns_rdf_type type_key_wireformat[] = {
1831         LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_B64
1832 };
1833 static const ldns_rdf_type type_px_wireformat[] = {
1834         LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_DNAME
1835 };
1836 static const ldns_rdf_type type_gpos_wireformat[] = {
1837         LDNS_RDF_TYPE_STR,
1838         LDNS_RDF_TYPE_STR,
1839         LDNS_RDF_TYPE_STR
1840 };
1841 static const ldns_rdf_type type_aaaa_wireformat[] = { LDNS_RDF_TYPE_AAAA };
1842 static const ldns_rdf_type type_loc_wireformat[] = { LDNS_RDF_TYPE_LOC };
1843 static const ldns_rdf_type type_nxt_wireformat[] = {
1844         LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_UNKNOWN
1845 };
1846 static const ldns_rdf_type type_eid_wireformat[] = {
1847         LDNS_RDF_TYPE_HEX
1848 };
1849 static const ldns_rdf_type type_nimloc_wireformat[] = {
1850         LDNS_RDF_TYPE_HEX
1851 };
1852 static const ldns_rdf_type type_srv_wireformat[] = {
1853         LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME
1854 };
1855 static const ldns_rdf_type type_atma_wireformat[] = {
1856         LDNS_RDF_TYPE_ATMA
1857 };
1858 static const ldns_rdf_type type_naptr_wireformat[] = {
1859         LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_DNAME
1860 };
1861 static const ldns_rdf_type type_kx_wireformat[] = {
1862         LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME
1863 };
1864 static const ldns_rdf_type type_cert_wireformat[] = {
1865          LDNS_RDF_TYPE_CERT_ALG, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_ALG, LDNS_RDF_TYPE_B64
1866 };
1867 static const ldns_rdf_type type_a6_wireformat[] = { LDNS_RDF_TYPE_UNKNOWN };
1868 static const ldns_rdf_type type_dname_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1869 static const ldns_rdf_type type_sink_wireformat[] = { LDNS_RDF_TYPE_INT8,
1870         LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_B64
1871 };
1872 static const ldns_rdf_type type_apl_wireformat[] = {
1873         LDNS_RDF_TYPE_APL
1874 };
1875 static const ldns_rdf_type type_ds_wireformat[] = {
1876         LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_ALG, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_HEX
1877 };
1878 static const ldns_rdf_type type_sshfp_wireformat[] = {
1879         LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_HEX
1880 };
1881 static const ldns_rdf_type type_ipseckey_wireformat[] = {
1882         LDNS_RDF_TYPE_IPSECKEY
1883 };
1884 static const ldns_rdf_type type_rrsig_wireformat[] = {
1885         LDNS_RDF_TYPE_TYPE, LDNS_RDF_TYPE_ALG, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT32,
1886         LDNS_RDF_TYPE_TIME, LDNS_RDF_TYPE_TIME, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_B64
1887 };
1888 static const ldns_rdf_type type_nsec_wireformat[] = {
1889         LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_NSEC
1890 };
1891 static const ldns_rdf_type type_dhcid_wireformat[] = {
1892         LDNS_RDF_TYPE_B64
1893 };
1894 static const ldns_rdf_type type_talink_wireformat[] = {
1895         LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_DNAME
1896 };
1897 /* nsec3 is some vars, followed by same type of data of nsec */
1898 static const ldns_rdf_type type_nsec3_wireformat[] = {
1899 /*      LDNS_RDF_TYPE_NSEC3_VARS, LDNS_RDF_TYPE_NSEC3_NEXT_OWNER, LDNS_RDF_TYPE_NSEC*/
1900         LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_NSEC3_SALT, LDNS_RDF_TYPE_NSEC3_NEXT_OWNER, LDNS_RDF_TYPE_NSEC
1901 };
1902
1903 static const ldns_rdf_type type_nsec3params_wireformat[] = {
1904 /*      LDNS_RDF_TYPE_NSEC3_PARAMS_VARS*/
1905         LDNS_RDF_TYPE_INT8,
1906         LDNS_RDF_TYPE_INT8,
1907         LDNS_RDF_TYPE_INT16,
1908         LDNS_RDF_TYPE_NSEC3_SALT
1909 };
1910
1911 static const ldns_rdf_type type_dnskey_wireformat[] = {
1912         LDNS_RDF_TYPE_INT16,
1913         LDNS_RDF_TYPE_INT8,
1914         LDNS_RDF_TYPE_ALG,
1915         LDNS_RDF_TYPE_B64
1916 };
1917 static const ldns_rdf_type type_tsig_wireformat[] = {
1918         LDNS_RDF_TYPE_DNAME,
1919         LDNS_RDF_TYPE_TSIGTIME,
1920         LDNS_RDF_TYPE_INT16,
1921         LDNS_RDF_TYPE_INT16_DATA,
1922         LDNS_RDF_TYPE_INT16,
1923         LDNS_RDF_TYPE_INT16,
1924         LDNS_RDF_TYPE_INT16_DATA
1925 };
1926 /** \endcond */
1927
1928 /** \cond */
1929 /* All RR's defined in 1035 are well known and can thus
1930  * be compressed. See RFC3597. These RR's are:
1931  * CNAME HINFO MB MD MF MG MINFO MR MX NULL NS PTR SOA TXT
1932  */
1933 static ldns_rr_descriptor rdata_field_descriptors[] = {
1934         /* 0 */
1935         { 0, NULL, 0, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1936         /* 1 */
1937         {LDNS_RR_TYPE_A, "A", 1, 1, type_a_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1938         /* 2 */
1939         {LDNS_RR_TYPE_NS, "NS", 1, 1, type_ns_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1940         /* 3 */
1941         {LDNS_RR_TYPE_MD, "MD", 1, 1, type_md_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1942         /* 4 */
1943         {LDNS_RR_TYPE_MF, "MF", 1, 1, type_mf_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1944         /* 5 */
1945         {LDNS_RR_TYPE_CNAME, "CNAME", 1, 1, type_cname_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1946         /* 6 */
1947         {LDNS_RR_TYPE_SOA, "SOA", 7, 7, type_soa_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 2 },
1948         /* 7 */
1949         {LDNS_RR_TYPE_MB, "MB", 1, 1, type_mb_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1950         /* 8 */
1951         {LDNS_RR_TYPE_MG, "MG", 1, 1, type_mg_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1952         /* 9 */
1953         {LDNS_RR_TYPE_MR, "MR", 1, 1, type_mr_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1954         /* 10 */
1955         {LDNS_RR_TYPE_NULL, "NULL", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1956         /* 11 */
1957         {LDNS_RR_TYPE_WKS, "WKS", 2, 2, type_wks_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1958         /* 12 */
1959         {LDNS_RR_TYPE_PTR, "PTR", 1, 1, type_ptr_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1960         /* 13 */
1961         {LDNS_RR_TYPE_HINFO, "HINFO", 2, 2, type_hinfo_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1962         /* 14 */
1963         {LDNS_RR_TYPE_MINFO, "MINFO", 2, 2, type_minfo_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 2 },
1964         /* 15 */
1965         {LDNS_RR_TYPE_MX, "MX", 2, 2, type_mx_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1966         /* 16 */
1967         {LDNS_RR_TYPE_TXT, "TXT", 1, 0, NULL, LDNS_RDF_TYPE_STR, LDNS_RR_NO_COMPRESS, 0 },
1968         /* 17 */
1969         {LDNS_RR_TYPE_RP, "RP", 2, 2, type_rp_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 2 },
1970         /* 18 */
1971         {LDNS_RR_TYPE_AFSDB, "AFSDB", 2, 2, type_afsdb_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
1972         /* 19 */
1973         {LDNS_RR_TYPE_X25, "X25", 1, 1, type_x25_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1974         /* 20 */
1975         {LDNS_RR_TYPE_ISDN, "ISDN", 1, 2, type_isdn_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1976         /* 21 */
1977         {LDNS_RR_TYPE_RT, "RT", 2, 2, type_rt_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
1978         /* 22 */
1979         {LDNS_RR_TYPE_NSAP, "NSAP", 1, 1, type_nsap_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1980         /* 23 */
1981         {LDNS_RR_TYPE_NSAP_PTR, "NSAP-PTR", 1, 1, type_nsap_ptr_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1982         /* 24 */
1983         {LDNS_RR_TYPE_SIG, "SIG", 9, 9, type_sig_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
1984         /* 25 */
1985         {LDNS_RR_TYPE_KEY, "KEY", 4, 4, type_key_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1986         /* 26 */
1987         {LDNS_RR_TYPE_PX, "PX", 3, 3, type_px_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 2 },
1988         /* 27 */
1989         {LDNS_RR_TYPE_GPOS, "GPOS", 1, 1, type_gpos_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1990         /* 28 */
1991         {LDNS_RR_TYPE_AAAA, "AAAA", 1, 1, type_aaaa_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1992         /* 29 */
1993         {LDNS_RR_TYPE_LOC, "LOC", 1, 1, type_loc_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1994         /* 30 */
1995         {LDNS_RR_TYPE_NXT, "NXT", 2, 2, type_nxt_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
1996         /* 31 */
1997         {LDNS_RR_TYPE_EID, "EID", 1, 1, type_eid_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1998         /* 32 */
1999         {LDNS_RR_TYPE_NIMLOC, "NIMLOC", 1, 1, type_nimloc_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2000         /* 33 */
2001         {LDNS_RR_TYPE_SRV, "SRV", 4, 4, type_srv_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
2002         /* 34 */
2003         {LDNS_RR_TYPE_ATMA, "ATMA", 1, 1, type_atma_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2004         /* 35 */
2005         {LDNS_RR_TYPE_NAPTR, "NAPTR", 6, 6, type_naptr_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
2006         /* 36 */
2007         {LDNS_RR_TYPE_KX, "KX", 2, 2, type_kx_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
2008         /* 37 */
2009         {LDNS_RR_TYPE_CERT, "CERT", 4, 4, type_cert_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2010         /* 38 */
2011         {LDNS_RR_TYPE_A6, "A6", 1, 1, type_a6_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2012         /* 39 */
2013         {LDNS_RR_TYPE_DNAME, "DNAME", 1, 1, type_dname_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
2014         /* 40 */
2015         {LDNS_RR_TYPE_SINK, "SINK", 1, 1, type_sink_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2016         /* 41 */
2017         {LDNS_RR_TYPE_OPT, "OPT", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2018         /* 42 */
2019         {LDNS_RR_TYPE_APL, "APL", 0, 0, type_apl_wireformat, LDNS_RDF_TYPE_APL, LDNS_RR_NO_COMPRESS, 0 },
2020         /* 43 */
2021         {LDNS_RR_TYPE_DS, "DS", 4, 4, type_ds_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2022         /* 44 */
2023         {LDNS_RR_TYPE_SSHFP, "SSHFP", 3, 3, type_sshfp_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2024         /* 45 */
2025         {LDNS_RR_TYPE_IPSECKEY, "IPSECKEY", 1, 1, type_ipseckey_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2026         /* 46 */
2027         {LDNS_RR_TYPE_RRSIG, "RRSIG", 9, 9, type_rrsig_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
2028         /* 47 */
2029         {LDNS_RR_TYPE_NSEC, "NSEC", 1, 2, type_nsec_wireformat, LDNS_RDF_TYPE_NSEC, LDNS_RR_NO_COMPRESS, 1 },
2030         /* 48 */
2031         {LDNS_RR_TYPE_DNSKEY, "DNSKEY", 4, 4, type_dnskey_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2032         /* 49 */
2033 {LDNS_RR_TYPE_DHCID, "DHCID", 1, 1, type_dhcid_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2034         /* 50 */
2035         {LDNS_RR_TYPE_NSEC3, "NSEC3", 5, 6, type_nsec3_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2036         /* 51 */
2037 {LDNS_RR_TYPE_NSEC3PARAMS, "NSEC3PARAM", 4, 4, type_nsec3params_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2038         /* 52 */
2039 {LDNS_RR_TYPE_NULL, "TYPE52", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2040 {LDNS_RR_TYPE_NULL, "TYPE53", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2041 {LDNS_RR_TYPE_NULL, "TYPE54", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2042 {LDNS_RR_TYPE_NULL, "TYPE55", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2043 {LDNS_RR_TYPE_NULL, "TYPE56", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2044 {LDNS_RR_TYPE_NULL, "TYPE57", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2045 {LDNS_RR_TYPE_TALINK, "TALINK", 2, 2, type_talink_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 2 },
2046 {LDNS_RR_TYPE_NULL, "TYPE59", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2047 {LDNS_RR_TYPE_NULL, "TYPE60", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2048 {LDNS_RR_TYPE_NULL, "TYPE61", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2049 {LDNS_RR_TYPE_NULL, "TYPE62", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2050 {LDNS_RR_TYPE_NULL, "TYPE63", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2051 {LDNS_RR_TYPE_NULL, "TYPE64", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2052 {LDNS_RR_TYPE_NULL, "TYPE65", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2053 {LDNS_RR_TYPE_NULL, "TYPE66", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2054 {LDNS_RR_TYPE_NULL, "TYPE67", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2055 {LDNS_RR_TYPE_NULL, "TYPE68", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2056 {LDNS_RR_TYPE_NULL, "TYPE69", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2057 {LDNS_RR_TYPE_NULL, "TYPE70", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2058 {LDNS_RR_TYPE_NULL, "TYPE71", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2059 {LDNS_RR_TYPE_NULL, "TYPE72", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2060 {LDNS_RR_TYPE_NULL, "TYPE73", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2061 {LDNS_RR_TYPE_NULL, "TYPE74", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2062 {LDNS_RR_TYPE_NULL, "TYPE75", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2063 {LDNS_RR_TYPE_NULL, "TYPE76", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2064 {LDNS_RR_TYPE_NULL, "TYPE77", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2065 {LDNS_RR_TYPE_NULL, "TYPE78", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2066 {LDNS_RR_TYPE_NULL, "TYPE79", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2067 {LDNS_RR_TYPE_NULL, "TYPE80", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2068 {LDNS_RR_TYPE_NULL, "TYPE81", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2069 {LDNS_RR_TYPE_NULL, "TYPE82", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2070 {LDNS_RR_TYPE_NULL, "TYPE83", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2071 {LDNS_RR_TYPE_NULL, "TYPE84", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2072 {LDNS_RR_TYPE_NULL, "TYPE85", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2073 {LDNS_RR_TYPE_NULL, "TYPE86", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2074 {LDNS_RR_TYPE_NULL, "TYPE87", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2075 {LDNS_RR_TYPE_NULL, "TYPE88", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2076 {LDNS_RR_TYPE_NULL, "TYPE89", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2077 {LDNS_RR_TYPE_NULL, "TYPE90", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2078 {LDNS_RR_TYPE_NULL, "TYPE91", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2079 {LDNS_RR_TYPE_NULL, "TYPE92", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2080 {LDNS_RR_TYPE_NULL, "TYPE93", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2081 {LDNS_RR_TYPE_NULL, "TYPE94", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2082 {LDNS_RR_TYPE_NULL, "TYPE95", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2083 {LDNS_RR_TYPE_NULL, "TYPE96", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2084 {LDNS_RR_TYPE_NULL, "TYPE97", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2085 {LDNS_RR_TYPE_NULL, "TYPE98", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2086 {LDNS_RR_TYPE_SPF,  "SPF", 1, 0, NULL, LDNS_RDF_TYPE_STR, LDNS_RR_NO_COMPRESS, 0 },
2087 {LDNS_RR_TYPE_NULL, "TYPE100", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2088 {LDNS_RR_TYPE_NULL, "TYPE101", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2089 {LDNS_RR_TYPE_NULL, "TYPE102", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2090 {LDNS_RR_TYPE_NULL, "TYPE103", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2091 {LDNS_RR_TYPE_NULL, "TYPE104", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2092 {LDNS_RR_TYPE_NULL, "TYPE105", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2093 {LDNS_RR_TYPE_NULL, "TYPE106", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2094 {LDNS_RR_TYPE_NULL, "TYPE107", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2095 {LDNS_RR_TYPE_NULL, "TYPE108", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2096 {LDNS_RR_TYPE_NULL, "TYPE109", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2097 {LDNS_RR_TYPE_NULL, "TYPE110", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2098 {LDNS_RR_TYPE_NULL, "TYPE111", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2099 {LDNS_RR_TYPE_NULL, "TYPE112", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2100 {LDNS_RR_TYPE_NULL, "TYPE113", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2101 {LDNS_RR_TYPE_NULL, "TYPE114", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2102 {LDNS_RR_TYPE_NULL, "TYPE115", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2103 {LDNS_RR_TYPE_NULL, "TYPE116", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2104 {LDNS_RR_TYPE_NULL, "TYPE117", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2105 {LDNS_RR_TYPE_NULL, "TYPE118", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2106 {LDNS_RR_TYPE_NULL, "TYPE119", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2107 {LDNS_RR_TYPE_NULL, "TYPE120", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2108 {LDNS_RR_TYPE_NULL, "TYPE121", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2109 {LDNS_RR_TYPE_NULL, "TYPE122", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2110 {LDNS_RR_TYPE_NULL, "TYPE123", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2111 {LDNS_RR_TYPE_NULL, "TYPE124", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2112 {LDNS_RR_TYPE_NULL, "TYPE125", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2113 {LDNS_RR_TYPE_NULL, "TYPE126", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2114 {LDNS_RR_TYPE_NULL, "TYPE127", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2115 {LDNS_RR_TYPE_NULL, "TYPE128", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2116 {LDNS_RR_TYPE_NULL, "TYPE129", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2117 {LDNS_RR_TYPE_NULL, "TYPE130", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2118 {LDNS_RR_TYPE_NULL, "TYPE131", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2119 {LDNS_RR_TYPE_NULL, "TYPE132", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2120 {LDNS_RR_TYPE_NULL, "TYPE133", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2121 {LDNS_RR_TYPE_NULL, "TYPE134", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2122 {LDNS_RR_TYPE_NULL, "TYPE135", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2123 {LDNS_RR_TYPE_NULL, "TYPE136", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2124 {LDNS_RR_TYPE_NULL, "TYPE137", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2125 {LDNS_RR_TYPE_NULL, "TYPE138", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2126 {LDNS_RR_TYPE_NULL, "TYPE139", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2127 {LDNS_RR_TYPE_NULL, "TYPE140", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2128 {LDNS_RR_TYPE_NULL, "TYPE141", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2129 {LDNS_RR_TYPE_NULL, "TYPE142", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2130 {LDNS_RR_TYPE_NULL, "TYPE143", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2131 {LDNS_RR_TYPE_NULL, "TYPE144", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2132 {LDNS_RR_TYPE_NULL, "TYPE145", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2133 {LDNS_RR_TYPE_NULL, "TYPE146", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2134 {LDNS_RR_TYPE_NULL, "TYPE147", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2135 {LDNS_RR_TYPE_NULL, "TYPE148", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2136 {LDNS_RR_TYPE_NULL, "TYPE149", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2137 {LDNS_RR_TYPE_NULL, "TYPE150", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2138 {LDNS_RR_TYPE_NULL, "TYPE151", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2139 {LDNS_RR_TYPE_NULL, "TYPE152", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2140 {LDNS_RR_TYPE_NULL, "TYPE153", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2141 {LDNS_RR_TYPE_NULL, "TYPE154", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2142 {LDNS_RR_TYPE_NULL, "TYPE155", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2143 {LDNS_RR_TYPE_NULL, "TYPE156", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2144 {LDNS_RR_TYPE_NULL, "TYPE157", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2145 {LDNS_RR_TYPE_NULL, "TYPE158", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2146 {LDNS_RR_TYPE_NULL, "TYPE159", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2147 {LDNS_RR_TYPE_NULL, "TYPE160", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2148 {LDNS_RR_TYPE_NULL, "TYPE161", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2149 {LDNS_RR_TYPE_NULL, "TYPE162", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2150 {LDNS_RR_TYPE_NULL, "TYPE163", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2151 {LDNS_RR_TYPE_NULL, "TYPE164", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2152 {LDNS_RR_TYPE_NULL, "TYPE165", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2153 {LDNS_RR_TYPE_NULL, "TYPE166", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2154 {LDNS_RR_TYPE_NULL, "TYPE167", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2155 {LDNS_RR_TYPE_NULL, "TYPE168", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2156 {LDNS_RR_TYPE_NULL, "TYPE169", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2157 {LDNS_RR_TYPE_NULL, "TYPE170", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2158 {LDNS_RR_TYPE_NULL, "TYPE171", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2159 {LDNS_RR_TYPE_NULL, "TYPE172", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2160 {LDNS_RR_TYPE_NULL, "TYPE173", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2161 {LDNS_RR_TYPE_NULL, "TYPE174", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2162 {LDNS_RR_TYPE_NULL, "TYPE175", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2163 {LDNS_RR_TYPE_NULL, "TYPE176", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2164 {LDNS_RR_TYPE_NULL, "TYPE177", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2165 {LDNS_RR_TYPE_NULL, "TYPE178", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2166 {LDNS_RR_TYPE_NULL, "TYPE179", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2167 {LDNS_RR_TYPE_NULL, "TYPE180", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2168 {LDNS_RR_TYPE_NULL, "TYPE181", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2169 {LDNS_RR_TYPE_NULL, "TYPE182", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2170 {LDNS_RR_TYPE_NULL, "TYPE183", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2171 {LDNS_RR_TYPE_NULL, "TYPE184", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2172 {LDNS_RR_TYPE_NULL, "TYPE185", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2173 {LDNS_RR_TYPE_NULL, "TYPE186", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2174 {LDNS_RR_TYPE_NULL, "TYPE187", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2175 {LDNS_RR_TYPE_NULL, "TYPE188", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2176 {LDNS_RR_TYPE_NULL, "TYPE189", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2177 {LDNS_RR_TYPE_NULL, "TYPE190", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2178 {LDNS_RR_TYPE_NULL, "TYPE191", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2179 {LDNS_RR_TYPE_NULL, "TYPE192", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2180 {LDNS_RR_TYPE_NULL, "TYPE193", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2181 {LDNS_RR_TYPE_NULL, "TYPE194", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2182 {LDNS_RR_TYPE_NULL, "TYPE195", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2183 {LDNS_RR_TYPE_NULL, "TYPE196", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2184 {LDNS_RR_TYPE_NULL, "TYPE197", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2185 {LDNS_RR_TYPE_NULL, "TYPE198", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2186 {LDNS_RR_TYPE_NULL, "TYPE199", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2187 {LDNS_RR_TYPE_NULL, "TYPE200", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2188 {LDNS_RR_TYPE_NULL, "TYPE201", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2189 {LDNS_RR_TYPE_NULL, "TYPE202", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2190 {LDNS_RR_TYPE_NULL, "TYPE203", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2191 {LDNS_RR_TYPE_NULL, "TYPE204", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2192 {LDNS_RR_TYPE_NULL, "TYPE205", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2193 {LDNS_RR_TYPE_NULL, "TYPE206", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2194 {LDNS_RR_TYPE_NULL, "TYPE207", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2195 {LDNS_RR_TYPE_NULL, "TYPE208", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2196 {LDNS_RR_TYPE_NULL, "TYPE209", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2197 {LDNS_RR_TYPE_NULL, "TYPE210", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2198 {LDNS_RR_TYPE_NULL, "TYPE211", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2199 {LDNS_RR_TYPE_NULL, "TYPE212", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2200 {LDNS_RR_TYPE_NULL, "TYPE213", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2201 {LDNS_RR_TYPE_NULL, "TYPE214", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2202 {LDNS_RR_TYPE_NULL, "TYPE215", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2203 {LDNS_RR_TYPE_NULL, "TYPE216", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2204 {LDNS_RR_TYPE_NULL, "TYPE217", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2205 {LDNS_RR_TYPE_NULL, "TYPE218", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2206 {LDNS_RR_TYPE_NULL, "TYPE219", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2207 {LDNS_RR_TYPE_NULL, "TYPE220", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2208 {LDNS_RR_TYPE_NULL, "TYPE221", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2209 {LDNS_RR_TYPE_NULL, "TYPE222", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2210 {LDNS_RR_TYPE_NULL, "TYPE223", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2211 {LDNS_RR_TYPE_NULL, "TYPE224", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2212 {LDNS_RR_TYPE_NULL, "TYPE225", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2213 {LDNS_RR_TYPE_NULL, "TYPE226", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2214 {LDNS_RR_TYPE_NULL, "TYPE227", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2215 {LDNS_RR_TYPE_NULL, "TYPE228", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2216 {LDNS_RR_TYPE_NULL, "TYPE229", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2217 {LDNS_RR_TYPE_NULL, "TYPE230", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2218 {LDNS_RR_TYPE_NULL, "TYPE231", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2219 {LDNS_RR_TYPE_NULL, "TYPE232", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2220 {LDNS_RR_TYPE_NULL, "TYPE233", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2221 {LDNS_RR_TYPE_NULL, "TYPE234", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2222 {LDNS_RR_TYPE_NULL, "TYPE235", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2223 {LDNS_RR_TYPE_NULL, "TYPE236", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2224 {LDNS_RR_TYPE_NULL, "TYPE237", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2225 {LDNS_RR_TYPE_NULL, "TYPE238", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2226 {LDNS_RR_TYPE_NULL, "TYPE239", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2227 {LDNS_RR_TYPE_NULL, "TYPE240", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2228 {LDNS_RR_TYPE_NULL, "TYPE241", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2229 {LDNS_RR_TYPE_NULL, "TYPE242", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2230 {LDNS_RR_TYPE_NULL, "TYPE243", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2231 {LDNS_RR_TYPE_NULL, "TYPE244", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2232 {LDNS_RR_TYPE_NULL, "TYPE245", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2233 {LDNS_RR_TYPE_NULL, "TYPE246", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2234 {LDNS_RR_TYPE_NULL, "TYPE247", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2235 {LDNS_RR_TYPE_NULL, "TYPE248", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2236 {LDNS_RR_TYPE_NULL, "TYPE249", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2237 {LDNS_RR_TYPE_TSIG, "TSIG", 8, 9, type_tsig_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2238 /* split in array, no longer contiguous */
2239 {LDNS_RR_TYPE_DLV, "DLV", 4, 4, type_ds_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 }
2240 };
2241 /** \endcond */
2242
2243 /**
2244  * \def LDNS_RDATA_FIELD_DESCRIPTORS_COUNT
2245  * computes the number of rdata fields
2246  */
2247 #define LDNS_RDATA_FIELD_DESCRIPTORS_COUNT \
2248         (sizeof(rdata_field_descriptors)/sizeof(rdata_field_descriptors[0]))
2249
2250 const ldns_rr_descriptor *
2251 ldns_rr_descript(uint16_t type)
2252 {
2253         size_t i;
2254         if (type <= LDNS_RDATA_FIELD_DESCRIPTORS_COMMON) {
2255                 return &rdata_field_descriptors[type];
2256         } else {
2257                 /* because not all array index equals type code */
2258                 for (i = LDNS_RDATA_FIELD_DESCRIPTORS_COMMON;
2259                      i < LDNS_RDATA_FIELD_DESCRIPTORS_COUNT;
2260                      i++) {
2261                         if (rdata_field_descriptors[i]._type == type) {
2262                                 return &rdata_field_descriptors[i];
2263                         }
2264                 }
2265                 return &rdata_field_descriptors[0];
2266         }
2267 }
2268
2269 size_t
2270 ldns_rr_descriptor_minimum(const ldns_rr_descriptor *descriptor)
2271 {
2272         if (descriptor) {
2273                 return descriptor->_minimum;
2274         } else {
2275                 return 0;
2276         }
2277 }
2278
2279 size_t
2280 ldns_rr_descriptor_maximum(const ldns_rr_descriptor *descriptor)
2281 {
2282         if (descriptor) {
2283                 if (descriptor->_variable != LDNS_RDF_TYPE_NONE) {
2284                         /* Should really be SIZE_MAX... bad FreeBSD.  */
2285                         return UINT_MAX;
2286                 } else {
2287                         return descriptor->_maximum;
2288                 }
2289         } else {
2290                 return 0;
2291         }
2292 }
2293
2294 ldns_rdf_type
2295 ldns_rr_descriptor_field_type(const ldns_rr_descriptor *descriptor,
2296                               size_t index)
2297 {
2298         assert(descriptor != NULL);
2299         assert(index < descriptor->_maximum
2300                || descriptor->_variable != LDNS_RDF_TYPE_NONE);
2301         if (index < descriptor->_maximum) {
2302                 return descriptor->_wireformat[index];
2303         } else {
2304                 return descriptor->_variable;
2305         }
2306 }
2307
2308 ldns_rr_type
2309 ldns_get_rr_type_by_name(const char *name)
2310 {
2311         unsigned int i;
2312         const char *desc_name;
2313         const ldns_rr_descriptor *desc;
2314
2315         /* TYPEXX representation */
2316         if (strlen(name) > 4 && strncasecmp(name, "TYPE", 4) == 0) {
2317                 return atoi(name + 4);
2318         }
2319
2320         /* Normal types */
2321         for (i = 0; i < (unsigned int) LDNS_RDATA_FIELD_DESCRIPTORS_COUNT; i++) {
2322                 desc = &rdata_field_descriptors[i];
2323                 desc_name = desc->_name;
2324                 if(desc_name &&
2325                    strlen(name) == strlen(desc_name) &&
2326                    strncasecmp(name, desc_name, strlen(desc_name)) == 0) {
2327                         /* because not all array index equals type code */
2328                         return desc->_type;
2329                 }
2330         }
2331
2332         /* special cases for query types */
2333         if (strlen(name) == 4 && strncasecmp(name, "IXFR", 4) == 0) {
2334                 return 251;
2335         } else if (strlen(name) == 4 && strncasecmp(name, "AXFR", 4) == 0) {
2336                 return 252;
2337         } else if (strlen(name) == 5 && strncasecmp(name, "MAILB", 5) == 0) {
2338                 return 253;
2339         } else if (strlen(name) == 5 && strncasecmp(name, "MAILA", 5) == 0) {
2340                 return 254;
2341         } else if (strlen(name) == 3 && strncasecmp(name, "ANY", 3) == 0) {
2342                 return 255;
2343         }
2344
2345         return 0;
2346 }
2347
2348 ldns_rr_class
2349 ldns_get_rr_class_by_name(const char *name)
2350 {
2351         ldns_lookup_table *lt;
2352
2353         /* CLASSXX representation */
2354         if (strlen(name) > 5 && strncasecmp(name, "CLASS", 5) == 0) {
2355                 return atoi(name + 5);
2356         }
2357
2358         /* Normal types */
2359         lt = ldns_lookup_by_name(ldns_rr_classes, name);
2360
2361         if (lt) {
2362                 return lt->id;
2363         }
2364         return 0;
2365 }
2366
2367
2368 ldns_rr_type
2369 ldns_rdf2rr_type(const ldns_rdf *rd)
2370 {
2371         ldns_rr_type r;
2372
2373         if (!rd) {
2374                 return 0;
2375         }
2376
2377         if (ldns_rdf_get_type(rd) != LDNS_RDF_TYPE_TYPE) {
2378                 return 0;
2379         }
2380
2381         r = (ldns_rr_type) ldns_rdf2native_int16(rd);
2382         return r;
2383 }
2384
2385 ldns_rr_type
2386 ldns_rr_list_type(const ldns_rr_list *rr_list)
2387 {
2388         if (rr_list && ldns_rr_list_rr_count(rr_list) > 0) {
2389                 return ldns_rr_get_type(ldns_rr_list_rr(rr_list, 0));
2390         } else {
2391                 return 0;
2392         }
2393 }
2394
2395 ldns_rdf *
2396 ldns_rr_list_owner(const ldns_rr_list *rr_list)
2397 {
2398         if (rr_list && ldns_rr_list_rr_count(rr_list) > 0) {
2399                 return ldns_rr_owner(ldns_rr_list_rr(rr_list, 0));
2400         } else {
2401                 return NULL;
2402         }
2403 }