xref: /freebsd/contrib/ldns/rr.c (revision 711bcba0bbfaf5ceb513e4ae6fdc7e3c3a5160a8)
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 							if (c != -1) {
435 								rd_strlen = strlen(rd);
436 							}
437 							if (c == -1 || (size_t)cur_hex_data_size + rd_strlen > 2 * (size_t)hex_data_size) {
438 								LDNS_FREE(hex_data_str);
439 								LDNS_FREE(rd);
440 								LDNS_FREE(b64);
441 								ldns_buffer_free(rd_buf);
442 								ldns_buffer_free(rr_buf);
443 								LDNS_FREE(rdata);
444 								ldns_rr_free(new);
445 								return LDNS_STATUS_SYNTAX_RDATA_ERR;
446 							}
447 							strncpy(hex_data_str + cur_hex_data_size, rd, rd_strlen);
448 							cur_hex_data_size += rd_strlen;
449 						}
450 						hex_data_str[cur_hex_data_size] = '\0';
451 
452 						/* correct the rdf type */
453 						/* if *we* know the type, interpret it as wireformat */
454 						if (desc) {
455 							size_t hex_pos = 0;
456 							uint8_t *hex_data = LDNS_XMALLOC(uint8_t, hex_data_size + 2);
457                                                         ldns_status s;
458                                                         if(!hex_data) {
459                                                                 LDNS_FREE(hex_data_str);
460                                                                 LDNS_FREE(rd);
461                                                                 LDNS_FREE(b64);
462                                                                 ldns_buffer_free(rd_buf);
463                                                                 ldns_buffer_free(rr_buf);
464                                                                 LDNS_FREE(rdata);
465                                                                 ldns_rr_free(new);
466                                                                 return LDNS_STATUS_MEM_ERR;
467                                                         }
468 							ldns_write_uint16(hex_data, hex_data_size);
469 							ldns_hexstring_to_data(hex_data + 2, hex_data_str);
470 							s = ldns_wire2rdf(new, hex_data,
471 							                 hex_data_size+2, &hex_pos);
472                                                         if(s != LDNS_STATUS_OK) {
473                                                                 LDNS_FREE(hex_data_str);
474                                                                 LDNS_FREE(rd);
475                                                                 LDNS_FREE(b64);
476                                                                 ldns_buffer_free(rd_buf);
477                                                                 ldns_buffer_free(rr_buf);
478                                                                 LDNS_FREE(rdata);
479                                                                 ldns_rr_free(new);
480 								LDNS_FREE(hex_data);
481                                                                 return s;
482                                                         }
483 							LDNS_FREE(hex_data);
484 						} else {
485 							r = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_HEX, hex_data_str);
486                                                         if(!r) {
487                                                                 LDNS_FREE(hex_data_str);
488                                                                 LDNS_FREE(rd);
489                                                                 LDNS_FREE(b64);
490                                                                 ldns_buffer_free(rd_buf);
491                                                                 ldns_buffer_free(rr_buf);
492                                                                 LDNS_FREE(rdata);
493                                                                 ldns_rr_free(new);
494                                                                 return LDNS_STATUS_MEM_ERR;
495                                                         }
496 							ldns_rdf_set_type(r, LDNS_RDF_TYPE_UNKNOWN);
497 							if(!ldns_rr_push_rdf(new, r)) {
498                                                                 LDNS_FREE(hex_data_str);
499                                                                 LDNS_FREE(rd);
500                                                                 LDNS_FREE(b64);
501                                                                 ldns_buffer_free(rd_buf);
502                                                                 ldns_buffer_free(rr_buf);
503                                                                 LDNS_FREE(rdata);
504                                                                 ldns_rr_free(new);
505                                                                 return LDNS_STATUS_MEM_ERR;
506                                                         }
507 						}
508 						LDNS_FREE(hex_data_str);
509 					} else {
510 						/* Normal RR */
511 						switch(ldns_rr_descriptor_field_type(desc, r_cnt)) {
512 						case LDNS_RDF_TYPE_HEX:
513 						case LDNS_RDF_TYPE_B64:
514 							/* can have spaces, and will always be the last
515 							 * record of the rrdata. Read in the rest */
516 							if ((c = ldns_bget_token(rd_buf,
517 												b64,
518 												"\n",
519 												LDNS_MAX_RDFLEN))
520 							    != -1) {
521 								rd = strncat(rd,
522 										   b64,
523 										   LDNS_MAX_RDFLEN
524 										   - strlen(rd) - 1);
525 							}
526 							r = ldns_rdf_new_frm_str(
527 									ldns_rr_descriptor_field_type(desc, r_cnt),
528 									rd);
529 							break;
530 						case LDNS_RDF_TYPE_DNAME:
531 							r = ldns_rdf_new_frm_str(
532 									ldns_rr_descriptor_field_type(desc, r_cnt),
533 									rd);
534 
535 							/* check if the origin should be used or concatenated */
536 							if (r && ldns_rdf_size(r) > 1 && ldns_rdf_data(r)[0] == 1
537 								&& ldns_rdf_data(r)[1] == '@') {
538 								ldns_rdf_deep_free(r);
539 								if (origin) {
540 									r = ldns_rdf_clone(origin);
541 								} else {
542 								     /* if this is the SOA, use its own owner name */
543 									if (rr_type == LDNS_RR_TYPE_SOA) {
544 										r = ldns_rdf_clone(ldns_rr_owner(new));
545 									} else {
546 										r = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_DNAME, ".");
547 									}
548 								}
549 							} else if (r && rd_strlen >= 1 && !ldns_dname_str_absolute(rd) && origin) {
550 								if (ldns_dname_cat(r, origin) != LDNS_STATUS_OK) {
551 							                LDNS_FREE(rd);
552 							                LDNS_FREE(b64);
553 							                ldns_buffer_free(rd_buf);
554 							                ldns_buffer_free(rr_buf);
555 							                LDNS_FREE(rdata);
556 							                ldns_rr_free(new);
557 									return LDNS_STATUS_ERR;
558 								}
559 							}
560 							break;
561 						default:
562 							r = ldns_rdf_new_frm_str(
563 									ldns_rr_descriptor_field_type(desc, r_cnt),
564 									rd);
565 							break;
566 						}
567 						if (r) {
568 							ldns_rr_push_rdf(new, r);
569 						} else {
570 							LDNS_FREE(rd);
571 							LDNS_FREE(b64);
572 							ldns_buffer_free(rd_buf);
573 							ldns_buffer_free(rr_buf);
574 							LDNS_FREE(rdata);
575 							ldns_rr_free(new);
576 							return LDNS_STATUS_SYNTAX_RDATA_ERR;
577 						}
578 					}
579 					if (quoted) {
580 						if (ldns_buffer_available(rd_buf, 1)) {
581 							ldns_buffer_skip(rd_buf, 1);
582 						} else {
583 							done = true;
584 						}
585 					}
586 				} else {
587 					done = true;
588 				}
589 			}
590 	}
591 	LDNS_FREE(rd);
592 	LDNS_FREE(b64);
593 	ldns_buffer_free(rd_buf);
594 	ldns_buffer_free(rr_buf);
595 	LDNS_FREE(rdata);
596 
597 	if (!question && desc && !was_unknown_rr_format && ldns_rr_rd_count(new) < r_min) {
598 		ldns_rr_free(new);
599 		return LDNS_STATUS_SYNTAX_MISSING_VALUE_ERR;
600 	}
601 
602 	if (newrr) {
603 		*newrr = new;
604 	} else {
605 		/* Maybe the caller just wanted to see if it would parse? */
606 		ldns_rr_free(new);
607 	}
608 	return LDNS_STATUS_OK;
609 
610 ldnserror:
611 	LDNS_FREE(type);
612 	LDNS_FREE(owner);
613 	LDNS_FREE(ttl);
614 	LDNS_FREE(clas);
615 	LDNS_FREE(rdata);
616 	LDNS_FREE(rd);
617 	LDNS_FREE(rd_buf);
618 	LDNS_FREE(b64);
619 	ldns_rr_free(new);
620     return status;
621 }
622 
623 ldns_status
624 ldns_rr_new_frm_str(ldns_rr **newrr, const char *str,
625                     uint32_t default_ttl, ldns_rdf *origin,
626 		    ldns_rdf **prev)
627 {
628 	return ldns_rr_new_frm_str_internal(newrr,
629 	                                    str,
630 	                                    default_ttl,
631 	                                    origin,
632 	                                    prev,
633 	                                    false);
634 }
635 
636 ldns_status
637 ldns_rr_new_question_frm_str(ldns_rr **newrr, const char *str,
638                              ldns_rdf *origin, ldns_rdf **prev)
639 {
640 	return ldns_rr_new_frm_str_internal(newrr,
641 	                                    str,
642 	                                    0,
643 	                                    origin,
644 	                                    prev,
645 	                                    true);
646 }
647 
648 ldns_status
649 ldns_rr_new_frm_fp(ldns_rr **newrr, FILE *fp, uint32_t *ttl, ldns_rdf **origin, ldns_rdf **prev)
650 {
651 	return ldns_rr_new_frm_fp_l(newrr, fp, ttl, origin, prev, NULL);
652 }
653 
654 ldns_status
655 ldns_rr_new_frm_fp_l(ldns_rr **newrr, FILE *fp, uint32_t *default_ttl, ldns_rdf **origin, ldns_rdf **prev, int *line_nr)
656 {
657 	char *line;
658 	const char *endptr;  /* unused */
659 	ldns_rr *rr;
660 	uint32_t ttl;
661 	ldns_rdf *tmp;
662 	ldns_status s;
663 	ssize_t size;
664 	int offset = 0;
665 
666 	if (default_ttl) {
667 		ttl = *default_ttl;
668 	} else {
669 		ttl = 0;
670 	}
671 
672 	line = LDNS_XMALLOC(char, LDNS_MAX_LINELEN + 1);
673 	if (!line) {
674 		return LDNS_STATUS_MEM_ERR;
675 	}
676 
677 	/* read an entire line in from the file */
678 	if ((size = ldns_fget_token_l(fp, line, LDNS_PARSE_SKIP_SPACE, LDNS_MAX_LINELEN, line_nr)) == -1) {
679 		LDNS_FREE(line);
680 		/* if last line was empty, we are now at feof, which is not
681 		 * always a parse error (happens when for instance last line
682 		 * was a comment)
683 		 */
684 		return LDNS_STATUS_SYNTAX_ERR;
685 	}
686 
687 	/* we can have the situation, where we've read ok, but still got
688 	 * no bytes to play with, in this case size is 0
689 	 */
690 	if (size == 0) {
691 		LDNS_FREE(line);
692 		return LDNS_STATUS_SYNTAX_EMPTY;
693 	}
694 
695 	if (strncmp(line, "$ORIGIN", 7) == 0 && isspace(line[7])) {
696 		if (*origin) {
697 			ldns_rdf_deep_free(*origin);
698 			*origin = NULL;
699 		}
700 		offset = 8;
701 		while (isspace(line[offset])) {
702 			offset++;
703 		}
704 		tmp = ldns_rdf_new_frm_str(LDNS_RDF_TYPE_DNAME, line + offset);
705 		if (!tmp) {
706 			/* could not parse what next to $ORIGIN */
707 			LDNS_FREE(line);
708 			return LDNS_STATUS_SYNTAX_DNAME_ERR;
709 		}
710 		*origin = tmp;
711 		s = LDNS_STATUS_SYNTAX_ORIGIN;
712 	} else if (strncmp(line, "$TTL", 4) == 0 && isspace(line[4])) {
713 		offset = 5;
714 		while (isspace(line[offset])) {
715 			offset++;
716 		}
717 		if (default_ttl) {
718 			*default_ttl = ldns_str2period(line + offset, &endptr);
719 		}
720 		s = LDNS_STATUS_SYNTAX_TTL;
721 	} else if (strncmp(line, "$INCLUDE", 8) == 0) {
722 		s = LDNS_STATUS_SYNTAX_INCLUDE;
723 	} else {
724 		if (origin && *origin) {
725 			s = ldns_rr_new_frm_str(&rr, (const char*) line, ttl, *origin, prev);
726 		} else {
727 			s = ldns_rr_new_frm_str(&rr, (const char*) line, ttl, NULL, prev);
728 		}
729 	}
730 	LDNS_FREE(line);
731 	if (s == LDNS_STATUS_OK) {
732 		if (newrr) {
733 			*newrr = rr;
734 		} else {
735 			/* Just testing if it would parse? */
736 			ldns_rr_free(rr);
737 		}
738 	}
739 	return s;
740 }
741 
742 void
743 ldns_rr_set_owner(ldns_rr *rr, ldns_rdf *owner)
744 {
745 	rr->_owner = owner;
746 }
747 
748 void
749 ldns_rr_set_question(ldns_rr *rr, bool question)
750 {
751    rr->_rr_question = question;
752 }
753 
754 void
755 ldns_rr_set_ttl(ldns_rr *rr, uint32_t ttl)
756 {
757 	rr->_ttl = ttl;
758 }
759 
760 void
761 ldns_rr_set_rd_count(ldns_rr *rr, size_t count)
762 {
763 	rr->_rd_count = count;
764 }
765 
766 void
767 ldns_rr_set_type(ldns_rr *rr, ldns_rr_type rr_type)
768 {
769 	rr->_rr_type = rr_type;
770 }
771 
772 void
773 ldns_rr_set_class(ldns_rr *rr, ldns_rr_class rr_class)
774 {
775 	rr->_rr_class = rr_class;
776 }
777 
778 ldns_rdf *
779 ldns_rr_set_rdf(ldns_rr *rr, const ldns_rdf *f, size_t position)
780 {
781 	size_t rd_count;
782 	ldns_rdf *pop;
783 
784 	rd_count = ldns_rr_rd_count(rr);
785 	if (position < rd_count) {
786 		/* dicard the old one */
787 		pop = rr->_rdata_fields[position];
788 		rr->_rdata_fields[position] = (ldns_rdf*)f;
789 		return pop;
790 	} else {
791 		return NULL;
792 	}
793 }
794 
795 bool
796 ldns_rr_push_rdf(ldns_rr *rr, const ldns_rdf *f)
797 {
798 	size_t rd_count;
799 	ldns_rdf **rdata_fields;
800 
801 	rd_count = ldns_rr_rd_count(rr);
802 
803 	/* grow the array */
804 	rdata_fields = LDNS_XREALLOC(
805 		rr->_rdata_fields, ldns_rdf *, rd_count + 1);
806 	if (!rdata_fields) {
807 		return false;
808 	}
809 
810 	/* add the new member */
811 	rr->_rdata_fields = rdata_fields;
812 	rr->_rdata_fields[rd_count] = (ldns_rdf*)f;
813 
814 	ldns_rr_set_rd_count(rr, rd_count + 1);
815 	return true;
816 }
817 
818 ldns_rdf *
819 ldns_rr_pop_rdf(ldns_rr *rr)
820 {
821 	size_t rd_count;
822 	ldns_rdf *pop;
823 	ldns_rdf** newrd;
824 
825 	rd_count = ldns_rr_rd_count(rr);
826 
827 	if (rd_count == 0) {
828 		return NULL;
829 	}
830 
831 	pop = rr->_rdata_fields[rd_count - 1];
832 
833 	/* try to shrink the array */
834 	if(rd_count > 1) {
835 		newrd = LDNS_XREALLOC(
836 			rr->_rdata_fields, ldns_rdf *, rd_count - 1);
837 		if(newrd)
838 			rr->_rdata_fields = newrd;
839 	} else {
840 		LDNS_FREE(rr->_rdata_fields);
841 	}
842 
843 	ldns_rr_set_rd_count(rr, rd_count - 1);
844 	return pop;
845 }
846 
847 ldns_rdf *
848 ldns_rr_rdf(const ldns_rr *rr, size_t nr)
849 {
850 	if (rr && nr < ldns_rr_rd_count(rr)) {
851 		return rr->_rdata_fields[nr];
852 	} else {
853 		return NULL;
854 	}
855 }
856 
857 ldns_rdf *
858 ldns_rr_owner(const ldns_rr *rr)
859 {
860 	return rr->_owner;
861 }
862 
863 bool
864 ldns_rr_is_question(const ldns_rr *rr)
865 {
866    return rr->_rr_question;
867 }
868 
869 uint32_t
870 ldns_rr_ttl(const ldns_rr *rr)
871 {
872 	return rr->_ttl;
873 }
874 
875 size_t
876 ldns_rr_rd_count(const ldns_rr *rr)
877 {
878 	return rr->_rd_count;
879 }
880 
881 ldns_rr_type
882 ldns_rr_get_type(const ldns_rr *rr)
883 {
884         return rr->_rr_type;
885 }
886 
887 ldns_rr_class
888 ldns_rr_get_class(const ldns_rr *rr)
889 {
890         return rr->_rr_class;
891 }
892 
893 /* rr_lists */
894 
895 size_t
896 ldns_rr_list_rr_count(const ldns_rr_list *rr_list)
897 {
898 	if (rr_list) {
899 		return rr_list->_rr_count;
900 	} else {
901 		return 0;
902 	}
903 }
904 
905 ldns_rr *
906 ldns_rr_list_set_rr(ldns_rr_list *rr_list, const ldns_rr *r, size_t count)
907 {
908 	ldns_rr *old;
909 
910 	if (count > ldns_rr_list_rr_count(rr_list)) {
911 		return NULL;
912 	}
913 
914 	old = ldns_rr_list_rr(rr_list, count);
915 
916 	/* overwrite old's pointer */
917 	rr_list->_rrs[count] = (ldns_rr*)r;
918 	return old;
919 }
920 
921 void
922 ldns_rr_list_set_rr_count(ldns_rr_list *rr_list, size_t count)
923 {
924 	assert(count <= rr_list->_rr_capacity);
925 	rr_list->_rr_count = count;
926 }
927 
928 ldns_rr *
929 ldns_rr_list_rr(const ldns_rr_list *rr_list, size_t nr)
930 {
931 	if (nr < ldns_rr_list_rr_count(rr_list)) {
932 		return rr_list->_rrs[nr];
933 	} else {
934 		return NULL;
935 	}
936 }
937 
938 ldns_rr_list *
939 ldns_rr_list_new(void)
940 {
941 	ldns_rr_list *rr_list = LDNS_MALLOC(ldns_rr_list);
942         if(!rr_list) return NULL;
943 	rr_list->_rr_count = 0;
944 	rr_list->_rr_capacity = 0;
945 	rr_list->_rrs = NULL;
946 	return rr_list;
947 }
948 
949 void
950 ldns_rr_list_free(ldns_rr_list *rr_list)
951 {
952 	if (rr_list) {
953 		LDNS_FREE(rr_list->_rrs);
954 		LDNS_FREE(rr_list);
955 	}
956 }
957 
958 void
959 ldns_rr_list_deep_free(ldns_rr_list *rr_list)
960 {
961 	size_t i;
962 
963 	if (rr_list) {
964 		for (i=0; i < ldns_rr_list_rr_count(rr_list); i++) {
965 			ldns_rr_free(ldns_rr_list_rr(rr_list, i));
966 		}
967 		LDNS_FREE(rr_list->_rrs);
968 		LDNS_FREE(rr_list);
969 	}
970 }
971 
972 
973 /* add right to left. So we modify *left! */
974 bool
975 ldns_rr_list_cat(ldns_rr_list *left, ldns_rr_list *right)
976 {
977 	size_t r_rr_count;
978 	size_t i;
979 
980 	if (!left) {
981 		return false;
982 	}
983 
984 	if (right) {
985 		r_rr_count = ldns_rr_list_rr_count(right);
986 	} else {
987 		r_rr_count = 0;
988 	}
989 
990 	/* push right to left */
991 	for(i = 0; i < r_rr_count; i++) {
992 		ldns_rr_list_push_rr(left, ldns_rr_list_rr(right, i));
993 	}
994 	return true;
995 }
996 
997 ldns_rr_list *
998 ldns_rr_list_cat_clone(ldns_rr_list *left, ldns_rr_list *right)
999 {
1000 	size_t l_rr_count;
1001 	size_t r_rr_count;
1002 	size_t i;
1003 	ldns_rr_list *cat;
1004 
1005 	if (left) {
1006 		l_rr_count = ldns_rr_list_rr_count(left);
1007 	} else {
1008 		return ldns_rr_list_clone(right);
1009 	}
1010 
1011 	if (right) {
1012 		r_rr_count = ldns_rr_list_rr_count(right);
1013 	} else {
1014 		r_rr_count = 0;
1015 	}
1016 
1017 	cat = ldns_rr_list_new();
1018 
1019 	if (!cat) {
1020 		return NULL;
1021 	}
1022 
1023 	/* left */
1024 	for(i = 0; i < l_rr_count; i++) {
1025 		ldns_rr_list_push_rr(cat,
1026 				ldns_rr_clone(ldns_rr_list_rr(left, i)));
1027 	}
1028 	/* right */
1029 	for(i = 0; i < r_rr_count; i++) {
1030 		ldns_rr_list_push_rr(cat,
1031 				ldns_rr_clone(ldns_rr_list_rr(right, i)));
1032 	}
1033 	return cat;
1034 }
1035 
1036 ldns_rr_list *
1037 ldns_rr_list_subtype_by_rdf(ldns_rr_list *l, ldns_rdf *r, size_t pos)
1038 {
1039 	size_t i;
1040 	ldns_rr_list *subtyped;
1041 	ldns_rdf *list_rdf;
1042 
1043 	subtyped = ldns_rr_list_new();
1044 
1045 	for(i = 0; i < ldns_rr_list_rr_count(l); i++) {
1046 		list_rdf = ldns_rr_rdf(
1047 			ldns_rr_list_rr(l, i),
1048 			pos);
1049 		if (!list_rdf) {
1050 			/* pos is too large or any other error */
1051 			ldns_rr_list_deep_free(subtyped);
1052 			return NULL;
1053 		}
1054 
1055 		if (ldns_rdf_compare(list_rdf, r) == 0) {
1056 			/* a match */
1057 			ldns_rr_list_push_rr(subtyped,
1058 					ldns_rr_clone(ldns_rr_list_rr(l, i)));
1059 		}
1060 	}
1061 
1062 	if (ldns_rr_list_rr_count(subtyped) > 0) {
1063 		return subtyped;
1064 	} else {
1065 		ldns_rr_list_free(subtyped);
1066 		return NULL;
1067 	}
1068 }
1069 
1070 bool
1071 ldns_rr_list_push_rr(ldns_rr_list *rr_list, const ldns_rr *rr)
1072 {
1073 	size_t rr_count;
1074 	size_t cap;
1075 
1076 	rr_count = ldns_rr_list_rr_count(rr_list);
1077 	cap = rr_list->_rr_capacity;
1078 
1079 	/* grow the array */
1080 	if(rr_count+1 > cap) {
1081 		ldns_rr **rrs;
1082 
1083 		if(cap == 0)
1084 			cap = LDNS_RRLIST_INIT;  /* initial list size */
1085 		else	cap *= 2;
1086 		rrs = LDNS_XREALLOC(rr_list->_rrs, ldns_rr *, cap);
1087 		if (!rrs) {
1088 			return false;
1089 		}
1090 		rr_list->_rrs = rrs;
1091 		rr_list->_rr_capacity = cap;
1092 	}
1093 
1094 	/* add the new member */
1095 	rr_list->_rrs[rr_count] = (ldns_rr*)rr;
1096 
1097 	ldns_rr_list_set_rr_count(rr_list, rr_count + 1);
1098 	return true;
1099 }
1100 
1101 bool
1102 ldns_rr_list_push_rr_list(ldns_rr_list *rr_list, const ldns_rr_list *push_list)
1103 {
1104 	size_t i;
1105 
1106 	for(i = 0; i < ldns_rr_list_rr_count(push_list); i++) {
1107 		if (!ldns_rr_list_push_rr(rr_list,
1108 				ldns_rr_list_rr(push_list, i))) {
1109 			return false;
1110 		}
1111 	}
1112 	return true;
1113 }
1114 
1115 ldns_rr *
1116 ldns_rr_list_pop_rr(ldns_rr_list *rr_list)
1117 {
1118 	size_t rr_count;
1119 	size_t cap;
1120 	ldns_rr *pop;
1121 
1122 	rr_count = ldns_rr_list_rr_count(rr_list);
1123 
1124 	if (rr_count == 0) {
1125 		return NULL;
1126 	}
1127 
1128 	cap = rr_list->_rr_capacity;
1129 	pop = ldns_rr_list_rr(rr_list, rr_count - 1);
1130 
1131 	/* shrink the array */
1132 	if(cap > LDNS_RRLIST_INIT && rr_count-1 <= cap/2) {
1133                 ldns_rr** a;
1134 		cap /= 2;
1135                 a = LDNS_XREALLOC(rr_list->_rrs, ldns_rr *, cap);
1136                 if(a) {
1137 		        rr_list->_rrs = a;
1138 		        rr_list->_rr_capacity = cap;
1139                 }
1140 	}
1141 
1142 	ldns_rr_list_set_rr_count(rr_list, rr_count - 1);
1143 
1144 	return pop;
1145 }
1146 
1147 ldns_rr_list *
1148 ldns_rr_list_pop_rr_list(ldns_rr_list *rr_list, size_t howmany)
1149 {
1150 	/* pop a number of rr's and put them in a rr_list */
1151 	ldns_rr_list *popped;
1152 	ldns_rr *p;
1153 	size_t i = howmany;
1154 
1155 	popped = ldns_rr_list_new();
1156 
1157 	if (!popped) {
1158 		return NULL;
1159 	}
1160 
1161 
1162 	while(i > 0 &&
1163 			(p = ldns_rr_list_pop_rr(rr_list)) != NULL) {
1164 		ldns_rr_list_push_rr(popped, p);
1165 		i--;
1166 	}
1167 
1168 	if (i == howmany) { /* so i <= 0 */
1169 		ldns_rr_list_free(popped);
1170 		return NULL;
1171 	} else {
1172 		return popped;
1173 	}
1174 }
1175 
1176 
1177 bool
1178 ldns_rr_list_contains_rr(const ldns_rr_list *rr_list, ldns_rr *rr)
1179 {
1180 	size_t i;
1181 
1182 	if (!rr_list || !rr || ldns_rr_list_rr_count(rr_list) == 0) {
1183 		return false;
1184 	}
1185 
1186 	for (i = 0; i < ldns_rr_list_rr_count(rr_list); i++) {
1187 		if (rr == ldns_rr_list_rr(rr_list, i)) {
1188 			return true;
1189 		} else if (ldns_rr_compare(rr, ldns_rr_list_rr(rr_list, i)) == 0) {
1190 			return true;
1191 		}
1192 	}
1193 	return false;
1194 }
1195 
1196 bool
1197 ldns_is_rrset(ldns_rr_list *rr_list)
1198 {
1199 	ldns_rr_type t;
1200 	ldns_rr_class c;
1201 	ldns_rdf *o;
1202 	ldns_rr *tmp;
1203 	size_t i;
1204 
1205 	if (!rr_list || ldns_rr_list_rr_count(rr_list) == 0) {
1206 		return false;
1207 	}
1208 
1209 	tmp = ldns_rr_list_rr(rr_list, 0);
1210 
1211 	t = ldns_rr_get_type(tmp);
1212 	c = ldns_rr_get_class(tmp);
1213 	o = ldns_rr_owner(tmp);
1214 
1215 	/* compare these with the rest of the rr_list, start with 1 */
1216 	for (i = 1; i < ldns_rr_list_rr_count(rr_list); i++) {
1217 		tmp = ldns_rr_list_rr(rr_list, i);
1218 		if (t != ldns_rr_get_type(tmp)) {
1219 			return false;
1220 		}
1221 		if (c != ldns_rr_get_class(tmp)) {
1222 			return false;
1223 		}
1224 		if (ldns_rdf_compare(o, ldns_rr_owner(tmp)) != 0) {
1225 			return false;
1226 		}
1227 	}
1228 	return true;
1229 }
1230 
1231 bool
1232 ldns_rr_set_push_rr(ldns_rr_list *rr_list, ldns_rr *rr)
1233 {
1234 	size_t rr_count;
1235 	size_t i;
1236 	ldns_rr *last;
1237 
1238 	assert(rr != NULL);
1239 
1240 	rr_count = ldns_rr_list_rr_count(rr_list);
1241 
1242 	if (rr_count == 0) {
1243 		/* nothing there, so checking it is
1244 		 * not needed */
1245 		return ldns_rr_list_push_rr(rr_list, rr);
1246 	} else {
1247 		/* check with the final rr in the rr_list */
1248 		last = ldns_rr_list_rr(rr_list, rr_count - 1);
1249 
1250 		if (ldns_rr_get_class(last) != ldns_rr_get_class(rr)) {
1251 			return false;
1252 		}
1253 		if (ldns_rr_get_type(last) != ldns_rr_get_type(rr)) {
1254 			return false;
1255 		}
1256 		/* only check if not equal to RRSIG */
1257 		if (ldns_rr_get_type(rr) != LDNS_RR_TYPE_RRSIG) {
1258 			if (ldns_rr_ttl(last) != ldns_rr_ttl(rr)) {
1259 				return false;
1260 			}
1261 		}
1262 		if (ldns_rdf_compare(ldns_rr_owner(last),
1263 					ldns_rr_owner(rr)) != 0) {
1264 			return false;
1265 		}
1266 		/* ok, still alive - check if the rr already
1267 		 * exists - if so, dont' add it */
1268 		for(i = 0; i < rr_count; i++) {
1269 			if(ldns_rr_compare(
1270 					ldns_rr_list_rr(rr_list, i), rr) == 0) {
1271 				return false;
1272 			}
1273 		}
1274 		/* it's safe, push it */
1275 		return ldns_rr_list_push_rr(rr_list, rr);
1276 	}
1277 }
1278 
1279 ldns_rr *
1280 ldns_rr_set_pop_rr(ldns_rr_list *rr_list)
1281 {
1282 	return ldns_rr_list_pop_rr(rr_list);
1283 }
1284 
1285 ldns_rr_list *
1286 ldns_rr_list_pop_rrset(ldns_rr_list *rr_list)
1287 {
1288 	ldns_rr_list *rrset;
1289 	ldns_rr *last_rr = NULL;
1290 	ldns_rr *next_rr;
1291 
1292 	if (!rr_list) {
1293 		return NULL;
1294 	}
1295 
1296 	rrset = ldns_rr_list_new();
1297 	if (!last_rr) {
1298 		last_rr = ldns_rr_list_pop_rr(rr_list);
1299 		if (!last_rr) {
1300 			ldns_rr_list_free(rrset);
1301 			return NULL;
1302 		} else {
1303 			ldns_rr_list_push_rr(rrset, last_rr);
1304 		}
1305 	}
1306 
1307 	if (ldns_rr_list_rr_count(rr_list) > 0) {
1308 		next_rr = ldns_rr_list_rr(rr_list, ldns_rr_list_rr_count(rr_list) - 1);
1309 	} else {
1310 		next_rr = NULL;
1311 	}
1312 
1313 	while (next_rr) {
1314 		if (
1315 			ldns_rdf_compare(ldns_rr_owner(next_rr),
1316 					 ldns_rr_owner(last_rr)) == 0
1317 			&&
1318 			ldns_rr_get_type(next_rr) == ldns_rr_get_type(last_rr)
1319 			&&
1320 			ldns_rr_get_class(next_rr) == ldns_rr_get_class(last_rr)
1321 		   ) {
1322 			ldns_rr_list_push_rr(rrset, ldns_rr_list_pop_rr(rr_list));
1323 			if (ldns_rr_list_rr_count(rr_list) > 0) {
1324 				last_rr = next_rr;
1325 				next_rr = ldns_rr_list_rr(rr_list, ldns_rr_list_rr_count(rr_list) - 1);
1326 			} else {
1327 				next_rr = NULL;
1328 			}
1329 		} else {
1330 			next_rr = NULL;
1331 		}
1332 	}
1333 
1334 	return rrset;
1335 }
1336 
1337 ldns_rr *
1338 ldns_rr_clone(const ldns_rr *rr)
1339 {
1340 	size_t i;
1341 	ldns_rr *new_rr;
1342 
1343 	if (!rr) {
1344 		return NULL;
1345 	}
1346 
1347 	new_rr = ldns_rr_new();
1348 	if (!new_rr) {
1349 		return NULL;
1350 	}
1351 	if (ldns_rr_owner(rr)) {
1352 		ldns_rr_set_owner(new_rr, ldns_rdf_clone(ldns_rr_owner(rr)));
1353   	}
1354 	ldns_rr_set_ttl(new_rr, ldns_rr_ttl(rr));
1355 	ldns_rr_set_type(new_rr, ldns_rr_get_type(rr));
1356 	ldns_rr_set_class(new_rr, ldns_rr_get_class(rr));
1357 	ldns_rr_set_question(new_rr, ldns_rr_is_question(rr));
1358 
1359 	for (i = 0; i < ldns_rr_rd_count(rr); i++) {
1360         	if (ldns_rr_rdf(rr,i)) {
1361         		ldns_rr_push_rdf(new_rr, ldns_rdf_clone(ldns_rr_rdf(rr, i)));
1362                 }
1363 	}
1364 
1365 	return new_rr;
1366 }
1367 
1368 ldns_rr_list *
1369 ldns_rr_list_clone(const ldns_rr_list *rrlist)
1370 {
1371 	size_t i;
1372 	ldns_rr_list *new_list;
1373 	ldns_rr *r;
1374 
1375 	if (!rrlist) {
1376 		return NULL;
1377 	}
1378 
1379 	new_list = ldns_rr_list_new();
1380 	if (!new_list) {
1381 		return NULL;
1382 	}
1383 	for (i = 0; i < ldns_rr_list_rr_count(rrlist); i++) {
1384 		r = ldns_rr_clone(
1385 			ldns_rr_list_rr(rrlist, i)
1386 		    );
1387 		if (!r) {
1388 			/* huh, failure in cloning */
1389 			ldns_rr_list_deep_free(new_list);
1390 			return NULL;
1391 		}
1392 		ldns_rr_list_push_rr(new_list, r);
1393 	}
1394 	return new_list;
1395 }
1396 
1397 
1398 static int
1399 qsort_schwartz_rr_compare(const void *a, const void *b)
1400 {
1401 	int result = 0;
1402 	ldns_rr *rr1, *rr2;
1403 	ldns_buffer *rr1_buf, *rr2_buf;
1404 	struct ldns_schwartzian_compare_struct *sa = *(struct ldns_schwartzian_compare_struct **) a;
1405 	struct ldns_schwartzian_compare_struct *sb = *(struct ldns_schwartzian_compare_struct **) b;
1406 	/* if we are doing 2wire, we need to do lowercasing on the dname (and maybe on the rdata)
1407 	 * this must be done for comparison only, so we need to have a temp var for both buffers,
1408 	 * which is only used when the transformed object value isn't there yet
1409 	 */
1410 	ldns_rr *canonical_a, *canonical_b;
1411 
1412 	rr1 = (ldns_rr *) sa->original_object;
1413 	rr2 = (ldns_rr *) sb->original_object;
1414 
1415 	result = ldns_rr_compare_no_rdata(rr1, rr2);
1416 
1417 	if (result == 0) {
1418 		if (!sa->transformed_object) {
1419 			canonical_a = ldns_rr_clone(sa->original_object);
1420 			ldns_rr2canonical(canonical_a);
1421 			sa->transformed_object = ldns_buffer_new(ldns_rr_uncompressed_size(canonical_a));
1422 			if (ldns_rr2buffer_wire(sa->transformed_object, canonical_a, LDNS_SECTION_ANY) != LDNS_STATUS_OK) {
1423 		                ldns_buffer_free((ldns_buffer *)sa->transformed_object);
1424                                 sa->transformed_object = NULL;
1425 				ldns_rr_free(canonical_a);
1426 				return 0;
1427 			}
1428 			ldns_rr_free(canonical_a);
1429 		}
1430 		if (!sb->transformed_object) {
1431 			canonical_b = ldns_rr_clone(sb->original_object);
1432 			ldns_rr2canonical(canonical_b);
1433 			sb->transformed_object = ldns_buffer_new(ldns_rr_uncompressed_size(canonical_b));
1434 			if (ldns_rr2buffer_wire(sb->transformed_object, canonical_b, LDNS_SECTION_ANY) != LDNS_STATUS_OK) {
1435 		                ldns_buffer_free((ldns_buffer *)sa->transformed_object);
1436 		                ldns_buffer_free((ldns_buffer *)sb->transformed_object);
1437                                 sa->transformed_object = NULL;
1438                                 sb->transformed_object = NULL;
1439 				ldns_rr_free(canonical_b);
1440 				return 0;
1441 			}
1442 			ldns_rr_free(canonical_b);
1443 		}
1444 		rr1_buf = (ldns_buffer *) sa->transformed_object;
1445 		rr2_buf = (ldns_buffer *) sb->transformed_object;
1446 
1447 		result = ldns_rr_compare_wire(rr1_buf, rr2_buf);
1448 	}
1449 
1450 	return result;
1451 }
1452 
1453 void
1454 ldns_rr_list_sort(ldns_rr_list *unsorted)
1455 {
1456 	struct ldns_schwartzian_compare_struct **sortables;
1457 	size_t item_count;
1458 	size_t i;
1459 
1460 	if (unsorted) {
1461 		item_count = ldns_rr_list_rr_count(unsorted);
1462 
1463 		sortables = LDNS_XMALLOC(struct ldns_schwartzian_compare_struct *,
1464 					 item_count);
1465                 if(!sortables) return; /* no way to return error */
1466 		for (i = 0; i < item_count; i++) {
1467 			sortables[i] = LDNS_XMALLOC(struct ldns_schwartzian_compare_struct, 1);
1468                         if(!sortables[i]) {
1469                                 /* free the allocated parts */
1470                                 while(i>0) {
1471                                         i--;
1472                                         LDNS_FREE(sortables[i]);
1473                                 }
1474                                 /* no way to return error */
1475 				LDNS_FREE(sortables);
1476                                 return;
1477                         }
1478 			sortables[i]->original_object = ldns_rr_list_rr(unsorted, i);
1479 			sortables[i]->transformed_object = NULL;
1480 		}
1481 		qsort(sortables,
1482 		      item_count,
1483 		      sizeof(struct ldns_schwartzian_compare_struct *),
1484 		      qsort_schwartz_rr_compare);
1485 		for (i = 0; i < item_count; i++) {
1486 			unsorted->_rrs[i] = sortables[i]->original_object;
1487 			if (sortables[i]->transformed_object) {
1488 				ldns_buffer_free(sortables[i]->transformed_object);
1489 			}
1490 			LDNS_FREE(sortables[i]);
1491 		}
1492 		LDNS_FREE(sortables);
1493 	}
1494 }
1495 
1496 int
1497 ldns_rr_compare_no_rdata(const ldns_rr *rr1, const ldns_rr *rr2)
1498 {
1499 	size_t rr1_len;
1500 	size_t rr2_len;
1501         size_t offset;
1502 
1503 	assert(rr1 != NULL);
1504 	assert(rr2 != NULL);
1505 
1506 	rr1_len = ldns_rr_uncompressed_size(rr1);
1507 	rr2_len = ldns_rr_uncompressed_size(rr2);
1508 
1509 	if (ldns_dname_compare(ldns_rr_owner(rr1), ldns_rr_owner(rr2)) < 0) {
1510 		return -1;
1511 	} else if (ldns_dname_compare(ldns_rr_owner(rr1), ldns_rr_owner(rr2)) > 0) {
1512 		return 1;
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_class(rr1) != ldns_rr_get_class(rr2)) {
1517             return ldns_rr_get_class(rr1) - ldns_rr_get_class(rr2);
1518         }
1519 
1520         /* should return -1 if rr1 comes before rr2, so need to do rr1 - rr2, not rr2 - rr1 */
1521         if (ldns_rr_get_type(rr1) != ldns_rr_get_type(rr2)) {
1522             return ldns_rr_get_type(rr1) - ldns_rr_get_type(rr2);
1523         }
1524 
1525         /* offset is the owername length + ttl + type + class + rdlen == start of wire format rdata */
1526         offset = ldns_rdf_size(ldns_rr_owner(rr1)) + 4 + 2 + 2 + 2;
1527         /* if either record doesn't have any RDATA... */
1528         if (offset > rr1_len || offset > rr2_len) {
1529             if (rr1_len == rr2_len) {
1530               return 0;
1531             }
1532             return ((int) rr2_len - (int) rr1_len);
1533         }
1534 
1535 	return 0;
1536 }
1537 
1538 int ldns_rr_compare_wire(ldns_buffer *rr1_buf, ldns_buffer *rr2_buf)
1539 {
1540         size_t rr1_len, rr2_len, min_len, i, offset;
1541 
1542         rr1_len = ldns_buffer_capacity(rr1_buf);
1543         rr2_len = ldns_buffer_capacity(rr2_buf);
1544 
1545         /* jump past dname (checked in earlier part)
1546          * and especially past TTL */
1547         offset = 0;
1548         while (offset < rr1_len && *ldns_buffer_at(rr1_buf, offset) != 0) {
1549           offset += *ldns_buffer_at(rr1_buf, offset) + 1;
1550         }
1551         /* jump to rdata section (PAST the rdata length field, otherwise
1552            rrs with different lengths might be sorted erroneously */
1553         offset += 11;
1554 	   min_len = (rr1_len < rr2_len) ? rr1_len : rr2_len;
1555         /* Compare RRs RDATA byte for byte. */
1556         for(i = offset; i < min_len; i++) {
1557                 if (*ldns_buffer_at(rr1_buf,i) < *ldns_buffer_at(rr2_buf,i)) {
1558                         return -1;
1559                 } else if (*ldns_buffer_at(rr1_buf,i) > *ldns_buffer_at(rr2_buf,i)) {
1560                         return +1;
1561                 }
1562         }
1563 
1564         /* If both RDATAs are the same up to min_len, then the shorter one sorts first. */
1565         if (rr1_len < rr2_len) {
1566                 return -1;
1567         } else if (rr1_len > rr2_len) {
1568                 return +1;
1569 	}
1570         /* The RDATAs are equal. */
1571         return 0;
1572 
1573 }
1574 
1575 int
1576 ldns_rr_compare(const ldns_rr *rr1, const ldns_rr *rr2)
1577 {
1578 	int result;
1579 	size_t rr1_len, rr2_len;
1580 
1581 	ldns_buffer *rr1_buf;
1582 	ldns_buffer *rr2_buf;
1583 
1584 	result = ldns_rr_compare_no_rdata(rr1, rr2);
1585 	if (result == 0) {
1586 		rr1_len = ldns_rr_uncompressed_size(rr1);
1587 		rr2_len = ldns_rr_uncompressed_size(rr2);
1588 
1589 		rr1_buf = ldns_buffer_new(rr1_len);
1590 		rr2_buf = ldns_buffer_new(rr2_len);
1591 
1592 		if (ldns_rr2buffer_wire_canonical(rr1_buf,
1593 								    rr1,
1594 								    LDNS_SECTION_ANY)
1595 		    != LDNS_STATUS_OK) {
1596 			ldns_buffer_free(rr1_buf);
1597 			ldns_buffer_free(rr2_buf);
1598 			return 0;
1599 		}
1600 		if (ldns_rr2buffer_wire_canonical(rr2_buf,
1601 								    rr2,
1602 								    LDNS_SECTION_ANY)
1603 		    != LDNS_STATUS_OK) {
1604 			ldns_buffer_free(rr1_buf);
1605 			ldns_buffer_free(rr2_buf);
1606 			return 0;
1607 		}
1608 
1609 		result = ldns_rr_compare_wire(rr1_buf, rr2_buf);
1610 
1611 		ldns_buffer_free(rr1_buf);
1612 		ldns_buffer_free(rr2_buf);
1613 	}
1614 
1615 	return result;
1616 }
1617 
1618 /* convert dnskey to a ds with the given algorithm,
1619  * then compare the result with the given ds */
1620 static int
1621 ldns_rr_compare_ds_dnskey(ldns_rr *ds,
1622                           ldns_rr *dnskey)
1623 {
1624 	ldns_rr *ds_gen;
1625 	bool result = false;
1626 	ldns_hash algo;
1627 
1628 	if (!dnskey || !ds ||
1629 	    ldns_rr_get_type(ds) != LDNS_RR_TYPE_DS ||
1630 	    ldns_rr_get_type(dnskey) != LDNS_RR_TYPE_DNSKEY) {
1631 		return false;
1632 	}
1633 
1634 	if (ldns_rr_rdf(ds, 2) == NULL) {
1635 		return false;
1636 	}
1637 	algo = ldns_rdf2native_int8(ldns_rr_rdf(ds, 2));
1638 
1639 	ds_gen = ldns_key_rr2ds(dnskey, algo);
1640 	if (ds_gen) {
1641 		result = ldns_rr_compare(ds, ds_gen) == 0;
1642 		ldns_rr_free(ds_gen);
1643 	}
1644 	return result;
1645 }
1646 
1647 bool
1648 ldns_rr_compare_ds(const ldns_rr *orr1, const ldns_rr *orr2)
1649 {
1650 	bool result;
1651 	ldns_rr *rr1 = ldns_rr_clone(orr1);
1652 	ldns_rr *rr2 = ldns_rr_clone(orr2);
1653 
1654 	/* set ttls to zero */
1655 	ldns_rr_set_ttl(rr1, 0);
1656 	ldns_rr_set_ttl(rr2, 0);
1657 
1658 	if (ldns_rr_get_type(rr1) == LDNS_RR_TYPE_DS &&
1659 	    ldns_rr_get_type(rr2) == LDNS_RR_TYPE_DNSKEY) {
1660 		result = ldns_rr_compare_ds_dnskey(rr1, rr2);
1661 	} else if (ldns_rr_get_type(rr1) == LDNS_RR_TYPE_DNSKEY &&
1662 	    ldns_rr_get_type(rr2) == LDNS_RR_TYPE_DS) {
1663 		result = ldns_rr_compare_ds_dnskey(rr2, rr1);
1664 	} else {
1665 		result = (ldns_rr_compare(rr1, rr2) == 0);
1666 	}
1667 
1668 	ldns_rr_free(rr1);
1669 	ldns_rr_free(rr2);
1670 
1671 	return result;
1672 }
1673 
1674 int
1675 ldns_rr_list_compare(const ldns_rr_list *rrl1, const ldns_rr_list *rrl2)
1676 {
1677 	size_t i = 0;
1678 	int rr_cmp;
1679 
1680 	assert(rrl1 != NULL);
1681 	assert(rrl2 != NULL);
1682 
1683 	for (i = 0; i < ldns_rr_list_rr_count(rrl1) && i < ldns_rr_list_rr_count(rrl2); i++) {
1684 		rr_cmp = ldns_rr_compare(ldns_rr_list_rr(rrl1, i), ldns_rr_list_rr(rrl2, i));
1685 		if (rr_cmp != 0) {
1686 			return rr_cmp;
1687 		}
1688 	}
1689 
1690 	if (i == ldns_rr_list_rr_count(rrl1) &&
1691 	    i != ldns_rr_list_rr_count(rrl2)) {
1692 		return 1;
1693 	} else if (i == ldns_rr_list_rr_count(rrl2) &&
1694 	           i != ldns_rr_list_rr_count(rrl1)) {
1695 		return -1;
1696 	} else {
1697 		return 0;
1698 	}
1699 }
1700 
1701 size_t
1702 ldns_rr_uncompressed_size(const ldns_rr *r)
1703 {
1704 	size_t rrsize;
1705 	size_t i;
1706 
1707 	rrsize = 0;
1708 	/* add all the rdf sizes */
1709 	for(i = 0; i < ldns_rr_rd_count(r); i++) {
1710 		rrsize += ldns_rdf_size(ldns_rr_rdf(r, i));
1711 	}
1712 	/* ownername */
1713 	rrsize += ldns_rdf_size(ldns_rr_owner(r));
1714 	rrsize += LDNS_RR_OVERHEAD;
1715 	return rrsize;
1716 }
1717 
1718 void
1719 ldns_rr2canonical(ldns_rr *rr)
1720 {
1721 	uint16_t i;
1722 
1723 	if (!rr) {
1724 	  return;
1725         }
1726 
1727         ldns_dname2canonical(ldns_rr_owner(rr));
1728 
1729 	/*
1730 	 * lowercase the rdata dnames if the rr type is one
1731 	 * of the list in chapter 7 of RFC3597
1732 	 * Also added RRSIG, because a "Signer's Name" should be canonicalized
1733 	 * too. See dnssec-bis-updates-16. We can add it to this list because
1734 	 * the "Signer's Name"  is the only dname type rdata field in a RRSIG.
1735 	 */
1736 	switch(ldns_rr_get_type(rr)) {
1737         	case LDNS_RR_TYPE_NS:
1738         	case LDNS_RR_TYPE_MD:
1739         	case LDNS_RR_TYPE_MF:
1740         	case LDNS_RR_TYPE_CNAME:
1741         	case LDNS_RR_TYPE_SOA:
1742         	case LDNS_RR_TYPE_MB:
1743         	case LDNS_RR_TYPE_MG:
1744         	case LDNS_RR_TYPE_MR:
1745         	case LDNS_RR_TYPE_PTR:
1746         	case LDNS_RR_TYPE_MINFO:
1747         	case LDNS_RR_TYPE_MX:
1748         	case LDNS_RR_TYPE_RP:
1749         	case LDNS_RR_TYPE_AFSDB:
1750         	case LDNS_RR_TYPE_RT:
1751         	case LDNS_RR_TYPE_SIG:
1752         	case LDNS_RR_TYPE_PX:
1753         	case LDNS_RR_TYPE_NXT:
1754         	case LDNS_RR_TYPE_NAPTR:
1755         	case LDNS_RR_TYPE_KX:
1756         	case LDNS_RR_TYPE_SRV:
1757         	case LDNS_RR_TYPE_DNAME:
1758         	case LDNS_RR_TYPE_A6:
1759         	case LDNS_RR_TYPE_RRSIG:
1760 			for (i = 0; i < ldns_rr_rd_count(rr); i++) {
1761 				ldns_dname2canonical(ldns_rr_rdf(rr, i));
1762 			}
1763 			return;
1764 		default:
1765 			/* do nothing */
1766 			return;
1767 	}
1768 }
1769 
1770 void
1771 ldns_rr_list2canonical(ldns_rr_list *rr_list)
1772 {
1773 	size_t i;
1774 	for (i = 0; i < ldns_rr_list_rr_count(rr_list); i++) {
1775 		ldns_rr2canonical(ldns_rr_list_rr(rr_list, i));
1776 	}
1777 }
1778 
1779 uint8_t
1780 ldns_rr_label_count(ldns_rr *rr)
1781 {
1782 	if (!rr) {
1783 		return 0;
1784 	}
1785 	return ldns_dname_label_count(
1786 			ldns_rr_owner(rr));
1787 }
1788 
1789 /** \cond */
1790 static const ldns_rdf_type type_0_wireformat[] = { LDNS_RDF_TYPE_UNKNOWN };
1791 static const ldns_rdf_type type_a_wireformat[] = { LDNS_RDF_TYPE_A };
1792 static const ldns_rdf_type type_ns_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1793 static const ldns_rdf_type type_md_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1794 static const ldns_rdf_type type_mf_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1795 static const ldns_rdf_type type_cname_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1796 static const ldns_rdf_type type_soa_wireformat[] = {
1797 	LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_INT32,
1798 	LDNS_RDF_TYPE_PERIOD, LDNS_RDF_TYPE_PERIOD, LDNS_RDF_TYPE_PERIOD,
1799 	LDNS_RDF_TYPE_PERIOD
1800 };
1801 static const ldns_rdf_type type_mb_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1802 static const ldns_rdf_type type_mg_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1803 static const ldns_rdf_type type_mr_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1804 static const ldns_rdf_type type_wks_wireformat[] = {
1805 	LDNS_RDF_TYPE_A, LDNS_RDF_TYPE_WKS
1806 };
1807 static const ldns_rdf_type type_ptr_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1808 static const ldns_rdf_type type_hinfo_wireformat[] = {
1809 	LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_STR
1810 };
1811 static const ldns_rdf_type type_minfo_wireformat[] = {
1812 	LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_DNAME
1813 };
1814 static const ldns_rdf_type type_mx_wireformat[] = {
1815 	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME
1816 };
1817 static const ldns_rdf_type type_rp_wireformat[] = {
1818 	LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_DNAME
1819 };
1820 static const ldns_rdf_type type_afsdb_wireformat[] = {
1821 	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME
1822 };
1823 static const ldns_rdf_type type_x25_wireformat[] = { LDNS_RDF_TYPE_STR };
1824 static const ldns_rdf_type type_isdn_wireformat[] = {
1825 	LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_STR
1826 };
1827 static const ldns_rdf_type type_rt_wireformat[] = {
1828 	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME
1829 };
1830 static const ldns_rdf_type type_nsap_wireformat[] = {
1831 	LDNS_RDF_TYPE_NSAP
1832 };
1833 static const ldns_rdf_type type_nsap_ptr_wireformat[] = {
1834 	LDNS_RDF_TYPE_STR
1835 };
1836 static const ldns_rdf_type type_sig_wireformat[] = {
1837 	LDNS_RDF_TYPE_TYPE, LDNS_RDF_TYPE_ALG, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT32,
1838 	LDNS_RDF_TYPE_TIME, LDNS_RDF_TYPE_TIME, LDNS_RDF_TYPE_INT16,
1839 	LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_B64
1840 };
1841 static const ldns_rdf_type type_key_wireformat[] = {
1842 	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_B64
1843 };
1844 static const ldns_rdf_type type_px_wireformat[] = {
1845 	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_DNAME
1846 };
1847 static const ldns_rdf_type type_gpos_wireformat[] = {
1848 	LDNS_RDF_TYPE_STR,
1849 	LDNS_RDF_TYPE_STR,
1850 	LDNS_RDF_TYPE_STR
1851 };
1852 static const ldns_rdf_type type_aaaa_wireformat[] = { LDNS_RDF_TYPE_AAAA };
1853 static const ldns_rdf_type type_loc_wireformat[] = { LDNS_RDF_TYPE_LOC };
1854 static const ldns_rdf_type type_nxt_wireformat[] = {
1855 	LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_UNKNOWN
1856 };
1857 static const ldns_rdf_type type_eid_wireformat[] = {
1858 	LDNS_RDF_TYPE_HEX
1859 };
1860 static const ldns_rdf_type type_nimloc_wireformat[] = {
1861 	LDNS_RDF_TYPE_HEX
1862 };
1863 static const ldns_rdf_type type_srv_wireformat[] = {
1864 	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME
1865 };
1866 static const ldns_rdf_type type_atma_wireformat[] = {
1867 	LDNS_RDF_TYPE_ATMA
1868 };
1869 static const ldns_rdf_type type_naptr_wireformat[] = {
1870 	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_STR, LDNS_RDF_TYPE_DNAME
1871 };
1872 static const ldns_rdf_type type_kx_wireformat[] = {
1873 	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME
1874 };
1875 static const ldns_rdf_type type_cert_wireformat[] = {
1876 	 LDNS_RDF_TYPE_CERT_ALG, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_ALG, LDNS_RDF_TYPE_B64
1877 };
1878 static const ldns_rdf_type type_a6_wireformat[] = { LDNS_RDF_TYPE_UNKNOWN };
1879 static const ldns_rdf_type type_dname_wireformat[] = { LDNS_RDF_TYPE_DNAME };
1880 static const ldns_rdf_type type_sink_wireformat[] = { LDNS_RDF_TYPE_INT8,
1881 	LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_B64
1882 };
1883 static const ldns_rdf_type type_apl_wireformat[] = {
1884 	LDNS_RDF_TYPE_APL
1885 };
1886 static const ldns_rdf_type type_ds_wireformat[] = {
1887 	LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_ALG, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_HEX
1888 };
1889 static const ldns_rdf_type type_sshfp_wireformat[] = {
1890 	LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_HEX
1891 };
1892 static const ldns_rdf_type type_ipseckey_wireformat[] = {
1893 	LDNS_RDF_TYPE_IPSECKEY
1894 };
1895 static const ldns_rdf_type type_rrsig_wireformat[] = {
1896 	LDNS_RDF_TYPE_TYPE, LDNS_RDF_TYPE_ALG, LDNS_RDF_TYPE_INT8, LDNS_RDF_TYPE_INT32,
1897 	LDNS_RDF_TYPE_TIME, LDNS_RDF_TYPE_TIME, LDNS_RDF_TYPE_INT16, LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_B64
1898 };
1899 static const ldns_rdf_type type_nsec_wireformat[] = {
1900 	LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_NSEC
1901 };
1902 static const ldns_rdf_type type_dhcid_wireformat[] = {
1903 	LDNS_RDF_TYPE_B64
1904 };
1905 static const ldns_rdf_type type_talink_wireformat[] = {
1906 	LDNS_RDF_TYPE_DNAME, LDNS_RDF_TYPE_DNAME
1907 };
1908 /* nsec3 is some vars, followed by same type of data of nsec */
1909 static const ldns_rdf_type type_nsec3_wireformat[] = {
1910 /*	LDNS_RDF_TYPE_NSEC3_VARS, LDNS_RDF_TYPE_NSEC3_NEXT_OWNER, LDNS_RDF_TYPE_NSEC*/
1911 	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
1912 };
1913 
1914 static const ldns_rdf_type type_nsec3param_wireformat[] = {
1915 /*	LDNS_RDF_TYPE_NSEC3_PARAMS_VARS*/
1916 	LDNS_RDF_TYPE_INT8,
1917 	LDNS_RDF_TYPE_INT8,
1918 	LDNS_RDF_TYPE_INT16,
1919 	LDNS_RDF_TYPE_NSEC3_SALT
1920 };
1921 
1922 static const ldns_rdf_type type_dnskey_wireformat[] = {
1923 	LDNS_RDF_TYPE_INT16,
1924 	LDNS_RDF_TYPE_INT8,
1925 	LDNS_RDF_TYPE_ALG,
1926 	LDNS_RDF_TYPE_B64
1927 };
1928 static const ldns_rdf_type type_tsig_wireformat[] = {
1929 	LDNS_RDF_TYPE_DNAME,
1930 	LDNS_RDF_TYPE_TSIGTIME,
1931 	LDNS_RDF_TYPE_INT16,
1932 	LDNS_RDF_TYPE_INT16_DATA,
1933 	LDNS_RDF_TYPE_INT16,
1934 	LDNS_RDF_TYPE_INT16,
1935 	LDNS_RDF_TYPE_INT16_DATA
1936 };
1937 static const ldns_rdf_type type_tlsa_wireformat[] = {
1938 	LDNS_RDF_TYPE_INT8,
1939 	LDNS_RDF_TYPE_INT8,
1940 	LDNS_RDF_TYPE_INT8,
1941 	LDNS_RDF_TYPE_HEX
1942 };
1943 /** \endcond */
1944 
1945 /** \cond */
1946 /* All RR's defined in 1035 are well known and can thus
1947  * be compressed. See RFC3597. These RR's are:
1948  * CNAME HINFO MB MD MF MG MINFO MR MX NULL NS PTR SOA TXT
1949  */
1950 static ldns_rr_descriptor rdata_field_descriptors[] = {
1951 	/* 0 */
1952 	{ 0, NULL, 0, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1953 	/* 1 */
1954 	{LDNS_RR_TYPE_A, "A", 1, 1, type_a_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1955 	/* 2 */
1956 	{LDNS_RR_TYPE_NS, "NS", 1, 1, type_ns_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1957 	/* 3 */
1958 	{LDNS_RR_TYPE_MD, "MD", 1, 1, type_md_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1959 	/* 4 */
1960 	{LDNS_RR_TYPE_MF, "MF", 1, 1, type_mf_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1961 	/* 5 */
1962 	{LDNS_RR_TYPE_CNAME, "CNAME", 1, 1, type_cname_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1963 	/* 6 */
1964 	{LDNS_RR_TYPE_SOA, "SOA", 7, 7, type_soa_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 2 },
1965 	/* 7 */
1966 	{LDNS_RR_TYPE_MB, "MB", 1, 1, type_mb_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1967 	/* 8 */
1968 	{LDNS_RR_TYPE_MG, "MG", 1, 1, type_mg_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1969 	/* 9 */
1970 	{LDNS_RR_TYPE_MR, "MR", 1, 1, type_mr_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1971 	/* 10 */
1972 	{LDNS_RR_TYPE_NULL, "NULL", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1973 	/* 11 */
1974 	{LDNS_RR_TYPE_WKS, "WKS", 2, 2, type_wks_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1975 	/* 12 */
1976 	{LDNS_RR_TYPE_PTR, "PTR", 1, 1, type_ptr_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1977 	/* 13 */
1978 	{LDNS_RR_TYPE_HINFO, "HINFO", 2, 2, type_hinfo_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1979 	/* 14 */
1980 	{LDNS_RR_TYPE_MINFO, "MINFO", 2, 2, type_minfo_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 2 },
1981 	/* 15 */
1982 	{LDNS_RR_TYPE_MX, "MX", 2, 2, type_mx_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_COMPRESS, 1 },
1983 	/* 16 */
1984 	{LDNS_RR_TYPE_TXT, "TXT", 1, 0, NULL, LDNS_RDF_TYPE_STR, LDNS_RR_NO_COMPRESS, 0 },
1985 	/* 17 */
1986 	{LDNS_RR_TYPE_RP, "RP", 2, 2, type_rp_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 2 },
1987 	/* 18 */
1988 	{LDNS_RR_TYPE_AFSDB, "AFSDB", 2, 2, type_afsdb_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
1989 	/* 19 */
1990 	{LDNS_RR_TYPE_X25, "X25", 1, 1, type_x25_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1991 	/* 20 */
1992 	{LDNS_RR_TYPE_ISDN, "ISDN", 1, 2, type_isdn_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1993 	/* 21 */
1994 	{LDNS_RR_TYPE_RT, "RT", 2, 2, type_rt_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
1995 	/* 22 */
1996 	{LDNS_RR_TYPE_NSAP, "NSAP", 1, 1, type_nsap_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1997 	/* 23 */
1998 	{LDNS_RR_TYPE_NSAP_PTR, "NSAP-PTR", 1, 1, type_nsap_ptr_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
1999 	/* 24 */
2000 	{LDNS_RR_TYPE_SIG, "SIG", 9, 9, type_sig_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
2001 	/* 25 */
2002 	{LDNS_RR_TYPE_KEY, "KEY", 4, 4, type_key_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2003 	/* 26 */
2004 	{LDNS_RR_TYPE_PX, "PX", 3, 3, type_px_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 2 },
2005 	/* 27 */
2006 	{LDNS_RR_TYPE_GPOS, "GPOS", 1, 1, type_gpos_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2007 	/* 28 */
2008 	{LDNS_RR_TYPE_AAAA, "AAAA", 1, 1, type_aaaa_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2009 	/* 29 */
2010 	{LDNS_RR_TYPE_LOC, "LOC", 1, 1, type_loc_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2011 	/* 30 */
2012 	{LDNS_RR_TYPE_NXT, "NXT", 2, 2, type_nxt_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
2013 	/* 31 */
2014 	{LDNS_RR_TYPE_EID, "EID", 1, 1, type_eid_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2015 	/* 32 */
2016 	{LDNS_RR_TYPE_NIMLOC, "NIMLOC", 1, 1, type_nimloc_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2017 	/* 33 */
2018 	{LDNS_RR_TYPE_SRV, "SRV", 4, 4, type_srv_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
2019 	/* 34 */
2020 	{LDNS_RR_TYPE_ATMA, "ATMA", 1, 1, type_atma_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2021 	/* 35 */
2022 	{LDNS_RR_TYPE_NAPTR, "NAPTR", 6, 6, type_naptr_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
2023 	/* 36 */
2024 	{LDNS_RR_TYPE_KX, "KX", 2, 2, type_kx_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
2025 	/* 37 */
2026 	{LDNS_RR_TYPE_CERT, "CERT", 4, 4, type_cert_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2027 	/* 38 */
2028 	{LDNS_RR_TYPE_A6, "A6", 1, 1, type_a6_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2029 	/* 39 */
2030 	{LDNS_RR_TYPE_DNAME, "DNAME", 1, 1, type_dname_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
2031 	/* 40 */
2032 	{LDNS_RR_TYPE_SINK, "SINK", 1, 1, type_sink_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2033 	/* 41 */
2034 	{LDNS_RR_TYPE_OPT, "OPT", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2035 	/* 42 */
2036 	{LDNS_RR_TYPE_APL, "APL", 0, 0, type_apl_wireformat, LDNS_RDF_TYPE_APL, LDNS_RR_NO_COMPRESS, 0 },
2037 	/* 43 */
2038 	{LDNS_RR_TYPE_DS, "DS", 4, 4, type_ds_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2039 	/* 44 */
2040 	{LDNS_RR_TYPE_SSHFP, "SSHFP", 3, 3, type_sshfp_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2041 	/* 45 */
2042 	{LDNS_RR_TYPE_IPSECKEY, "IPSECKEY", 1, 1, type_ipseckey_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2043 	/* 46 */
2044 	{LDNS_RR_TYPE_RRSIG, "RRSIG", 9, 9, type_rrsig_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 1 },
2045 	/* 47 */
2046 	{LDNS_RR_TYPE_NSEC, "NSEC", 1, 2, type_nsec_wireformat, LDNS_RDF_TYPE_NSEC, LDNS_RR_NO_COMPRESS, 1 },
2047 	/* 48 */
2048 	{LDNS_RR_TYPE_DNSKEY, "DNSKEY", 4, 4, type_dnskey_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2049 	/* 49 */
2050 	{LDNS_RR_TYPE_DHCID, "DHCID", 1, 1, type_dhcid_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2051 	/* 50 */
2052 	{LDNS_RR_TYPE_NSEC3, "NSEC3", 5, 6, type_nsec3_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2053 	/* 51 */
2054 	{LDNS_RR_TYPE_NSEC3PARAM, "NSEC3PARAM", 4, 4, type_nsec3param_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2055 	/* 52 */
2056 	{LDNS_RR_TYPE_TLSA, "TLSA", 4, 4, type_tlsa_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2057 
2058 {LDNS_RR_TYPE_NULL, "TYPE53", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2059 {LDNS_RR_TYPE_NULL, "TYPE54", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2060 {LDNS_RR_TYPE_NULL, "TYPE55", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2061 {LDNS_RR_TYPE_NULL, "TYPE56", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2062 {LDNS_RR_TYPE_NULL, "TYPE57", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2063 	/* 58 */
2064 {LDNS_RR_TYPE_TALINK, "TALINK", 2, 2, type_talink_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 2 },
2065 {LDNS_RR_TYPE_NULL, "TYPE59", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2066 {LDNS_RR_TYPE_NULL, "TYPE60", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2067 {LDNS_RR_TYPE_NULL, "TYPE61", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2068 {LDNS_RR_TYPE_NULL, "TYPE62", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2069 {LDNS_RR_TYPE_NULL, "TYPE63", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2070 {LDNS_RR_TYPE_NULL, "TYPE64", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2071 {LDNS_RR_TYPE_NULL, "TYPE65", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2072 {LDNS_RR_TYPE_NULL, "TYPE66", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2073 {LDNS_RR_TYPE_NULL, "TYPE67", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2074 {LDNS_RR_TYPE_NULL, "TYPE68", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2075 {LDNS_RR_TYPE_NULL, "TYPE69", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2076 {LDNS_RR_TYPE_NULL, "TYPE70", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2077 {LDNS_RR_TYPE_NULL, "TYPE71", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2078 {LDNS_RR_TYPE_NULL, "TYPE72", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2079 {LDNS_RR_TYPE_NULL, "TYPE73", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2080 {LDNS_RR_TYPE_NULL, "TYPE74", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2081 {LDNS_RR_TYPE_NULL, "TYPE75", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2082 {LDNS_RR_TYPE_NULL, "TYPE76", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2083 {LDNS_RR_TYPE_NULL, "TYPE77", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2084 {LDNS_RR_TYPE_NULL, "TYPE78", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2085 {LDNS_RR_TYPE_NULL, "TYPE79", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2086 {LDNS_RR_TYPE_NULL, "TYPE80", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2087 {LDNS_RR_TYPE_NULL, "TYPE81", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2088 {LDNS_RR_TYPE_NULL, "TYPE82", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2089 {LDNS_RR_TYPE_NULL, "TYPE83", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2090 {LDNS_RR_TYPE_NULL, "TYPE84", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2091 {LDNS_RR_TYPE_NULL, "TYPE85", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2092 {LDNS_RR_TYPE_NULL, "TYPE86", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2093 {LDNS_RR_TYPE_NULL, "TYPE87", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2094 {LDNS_RR_TYPE_NULL, "TYPE88", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2095 {LDNS_RR_TYPE_NULL, "TYPE89", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2096 {LDNS_RR_TYPE_NULL, "TYPE90", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2097 {LDNS_RR_TYPE_NULL, "TYPE91", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2098 {LDNS_RR_TYPE_NULL, "TYPE92", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2099 {LDNS_RR_TYPE_NULL, "TYPE93", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2100 {LDNS_RR_TYPE_NULL, "TYPE94", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2101 {LDNS_RR_TYPE_NULL, "TYPE95", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2102 {LDNS_RR_TYPE_NULL, "TYPE96", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2103 {LDNS_RR_TYPE_NULL, "TYPE97", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2104 {LDNS_RR_TYPE_NULL, "TYPE98", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2105 {LDNS_RR_TYPE_SPF,  "SPF", 1, 0, NULL, LDNS_RDF_TYPE_STR, LDNS_RR_NO_COMPRESS, 0 },
2106 {LDNS_RR_TYPE_NULL, "TYPE100", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2107 {LDNS_RR_TYPE_NULL, "TYPE101", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2108 {LDNS_RR_TYPE_NULL, "TYPE102", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2109 {LDNS_RR_TYPE_NULL, "TYPE103", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2110 {LDNS_RR_TYPE_NULL, "TYPE104", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2111 {LDNS_RR_TYPE_NULL, "TYPE105", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2112 {LDNS_RR_TYPE_NULL, "TYPE106", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2113 {LDNS_RR_TYPE_NULL, "TYPE107", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2114 {LDNS_RR_TYPE_NULL, "TYPE108", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2115 {LDNS_RR_TYPE_NULL, "TYPE109", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2116 {LDNS_RR_TYPE_NULL, "TYPE110", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2117 {LDNS_RR_TYPE_NULL, "TYPE111", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2118 {LDNS_RR_TYPE_NULL, "TYPE112", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2119 {LDNS_RR_TYPE_NULL, "TYPE113", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2120 {LDNS_RR_TYPE_NULL, "TYPE114", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2121 {LDNS_RR_TYPE_NULL, "TYPE115", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2122 {LDNS_RR_TYPE_NULL, "TYPE116", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2123 {LDNS_RR_TYPE_NULL, "TYPE117", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2124 {LDNS_RR_TYPE_NULL, "TYPE118", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2125 {LDNS_RR_TYPE_NULL, "TYPE119", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2126 {LDNS_RR_TYPE_NULL, "TYPE120", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2127 {LDNS_RR_TYPE_NULL, "TYPE121", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2128 {LDNS_RR_TYPE_NULL, "TYPE122", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2129 {LDNS_RR_TYPE_NULL, "TYPE123", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2130 {LDNS_RR_TYPE_NULL, "TYPE124", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2131 {LDNS_RR_TYPE_NULL, "TYPE125", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2132 {LDNS_RR_TYPE_NULL, "TYPE126", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2133 {LDNS_RR_TYPE_NULL, "TYPE127", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2134 {LDNS_RR_TYPE_NULL, "TYPE128", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2135 {LDNS_RR_TYPE_NULL, "TYPE129", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2136 {LDNS_RR_TYPE_NULL, "TYPE130", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2137 {LDNS_RR_TYPE_NULL, "TYPE131", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2138 {LDNS_RR_TYPE_NULL, "TYPE132", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2139 {LDNS_RR_TYPE_NULL, "TYPE133", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2140 {LDNS_RR_TYPE_NULL, "TYPE134", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2141 {LDNS_RR_TYPE_NULL, "TYPE135", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2142 {LDNS_RR_TYPE_NULL, "TYPE136", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2143 {LDNS_RR_TYPE_NULL, "TYPE137", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2144 {LDNS_RR_TYPE_NULL, "TYPE138", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2145 {LDNS_RR_TYPE_NULL, "TYPE139", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2146 {LDNS_RR_TYPE_NULL, "TYPE140", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2147 {LDNS_RR_TYPE_NULL, "TYPE141", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2148 {LDNS_RR_TYPE_NULL, "TYPE142", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2149 {LDNS_RR_TYPE_NULL, "TYPE143", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2150 {LDNS_RR_TYPE_NULL, "TYPE144", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2151 {LDNS_RR_TYPE_NULL, "TYPE145", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2152 {LDNS_RR_TYPE_NULL, "TYPE146", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2153 {LDNS_RR_TYPE_NULL, "TYPE147", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2154 {LDNS_RR_TYPE_NULL, "TYPE148", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2155 {LDNS_RR_TYPE_NULL, "TYPE149", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2156 {LDNS_RR_TYPE_NULL, "TYPE150", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2157 {LDNS_RR_TYPE_NULL, "TYPE151", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2158 {LDNS_RR_TYPE_NULL, "TYPE152", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2159 {LDNS_RR_TYPE_NULL, "TYPE153", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2160 {LDNS_RR_TYPE_NULL, "TYPE154", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2161 {LDNS_RR_TYPE_NULL, "TYPE155", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2162 {LDNS_RR_TYPE_NULL, "TYPE156", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2163 {LDNS_RR_TYPE_NULL, "TYPE157", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2164 {LDNS_RR_TYPE_NULL, "TYPE158", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2165 {LDNS_RR_TYPE_NULL, "TYPE159", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2166 {LDNS_RR_TYPE_NULL, "TYPE160", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2167 {LDNS_RR_TYPE_NULL, "TYPE161", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2168 {LDNS_RR_TYPE_NULL, "TYPE162", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2169 {LDNS_RR_TYPE_NULL, "TYPE163", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2170 {LDNS_RR_TYPE_NULL, "TYPE164", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2171 {LDNS_RR_TYPE_NULL, "TYPE165", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2172 {LDNS_RR_TYPE_NULL, "TYPE166", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2173 {LDNS_RR_TYPE_NULL, "TYPE167", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2174 {LDNS_RR_TYPE_NULL, "TYPE168", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2175 {LDNS_RR_TYPE_NULL, "TYPE169", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2176 {LDNS_RR_TYPE_NULL, "TYPE170", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2177 {LDNS_RR_TYPE_NULL, "TYPE171", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2178 {LDNS_RR_TYPE_NULL, "TYPE172", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2179 {LDNS_RR_TYPE_NULL, "TYPE173", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2180 {LDNS_RR_TYPE_NULL, "TYPE174", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2181 {LDNS_RR_TYPE_NULL, "TYPE175", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2182 {LDNS_RR_TYPE_NULL, "TYPE176", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2183 {LDNS_RR_TYPE_NULL, "TYPE177", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2184 {LDNS_RR_TYPE_NULL, "TYPE178", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2185 {LDNS_RR_TYPE_NULL, "TYPE179", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2186 {LDNS_RR_TYPE_NULL, "TYPE180", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2187 {LDNS_RR_TYPE_NULL, "TYPE181", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2188 {LDNS_RR_TYPE_NULL, "TYPE182", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2189 {LDNS_RR_TYPE_NULL, "TYPE183", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2190 {LDNS_RR_TYPE_NULL, "TYPE184", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2191 {LDNS_RR_TYPE_NULL, "TYPE185", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2192 {LDNS_RR_TYPE_NULL, "TYPE186", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2193 {LDNS_RR_TYPE_NULL, "TYPE187", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2194 {LDNS_RR_TYPE_NULL, "TYPE188", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2195 {LDNS_RR_TYPE_NULL, "TYPE189", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2196 {LDNS_RR_TYPE_NULL, "TYPE190", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2197 {LDNS_RR_TYPE_NULL, "TYPE191", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2198 {LDNS_RR_TYPE_NULL, "TYPE192", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2199 {LDNS_RR_TYPE_NULL, "TYPE193", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2200 {LDNS_RR_TYPE_NULL, "TYPE194", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2201 {LDNS_RR_TYPE_NULL, "TYPE195", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2202 {LDNS_RR_TYPE_NULL, "TYPE196", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2203 {LDNS_RR_TYPE_NULL, "TYPE197", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2204 {LDNS_RR_TYPE_NULL, "TYPE198", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2205 {LDNS_RR_TYPE_NULL, "TYPE199", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2206 {LDNS_RR_TYPE_NULL, "TYPE200", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2207 {LDNS_RR_TYPE_NULL, "TYPE201", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2208 {LDNS_RR_TYPE_NULL, "TYPE202", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2209 {LDNS_RR_TYPE_NULL, "TYPE203", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2210 {LDNS_RR_TYPE_NULL, "TYPE204", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2211 {LDNS_RR_TYPE_NULL, "TYPE205", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2212 {LDNS_RR_TYPE_NULL, "TYPE206", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2213 {LDNS_RR_TYPE_NULL, "TYPE207", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2214 {LDNS_RR_TYPE_NULL, "TYPE208", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2215 {LDNS_RR_TYPE_NULL, "TYPE209", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2216 {LDNS_RR_TYPE_NULL, "TYPE210", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2217 {LDNS_RR_TYPE_NULL, "TYPE211", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2218 {LDNS_RR_TYPE_NULL, "TYPE212", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2219 {LDNS_RR_TYPE_NULL, "TYPE213", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2220 {LDNS_RR_TYPE_NULL, "TYPE214", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2221 {LDNS_RR_TYPE_NULL, "TYPE215", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2222 {LDNS_RR_TYPE_NULL, "TYPE216", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2223 {LDNS_RR_TYPE_NULL, "TYPE217", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2224 {LDNS_RR_TYPE_NULL, "TYPE218", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2225 {LDNS_RR_TYPE_NULL, "TYPE219", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2226 {LDNS_RR_TYPE_NULL, "TYPE220", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2227 {LDNS_RR_TYPE_NULL, "TYPE221", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2228 {LDNS_RR_TYPE_NULL, "TYPE222", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2229 {LDNS_RR_TYPE_NULL, "TYPE223", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2230 {LDNS_RR_TYPE_NULL, "TYPE224", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2231 {LDNS_RR_TYPE_NULL, "TYPE225", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2232 {LDNS_RR_TYPE_NULL, "TYPE226", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2233 {LDNS_RR_TYPE_NULL, "TYPE227", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2234 {LDNS_RR_TYPE_NULL, "TYPE228", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2235 {LDNS_RR_TYPE_NULL, "TYPE229", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2236 {LDNS_RR_TYPE_NULL, "TYPE230", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2237 {LDNS_RR_TYPE_NULL, "TYPE231", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2238 {LDNS_RR_TYPE_NULL, "TYPE232", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2239 {LDNS_RR_TYPE_NULL, "TYPE233", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2240 {LDNS_RR_TYPE_NULL, "TYPE234", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2241 {LDNS_RR_TYPE_NULL, "TYPE235", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2242 {LDNS_RR_TYPE_NULL, "TYPE236", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2243 {LDNS_RR_TYPE_NULL, "TYPE237", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2244 {LDNS_RR_TYPE_NULL, "TYPE238", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2245 {LDNS_RR_TYPE_NULL, "TYPE239", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2246 {LDNS_RR_TYPE_NULL, "TYPE240", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2247 {LDNS_RR_TYPE_NULL, "TYPE241", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2248 {LDNS_RR_TYPE_NULL, "TYPE242", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2249 {LDNS_RR_TYPE_NULL, "TYPE243", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2250 {LDNS_RR_TYPE_NULL, "TYPE244", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2251 {LDNS_RR_TYPE_NULL, "TYPE245", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2252 {LDNS_RR_TYPE_NULL, "TYPE246", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2253 {LDNS_RR_TYPE_NULL, "TYPE247", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2254 {LDNS_RR_TYPE_NULL, "TYPE248", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2255 {LDNS_RR_TYPE_NULL, "TYPE249", 1, 1, type_0_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2256 /* LDNS_RDF_TYPE_INT16_DATA essentially takes two fields (length and data) and
2257  * makes them into one. So, while in rfc 2845 is specified that a TSIG may have
2258  * 8 or 9 rdata fields, by this implementation, the min/max are 7 each.
2259  */
2260 {LDNS_RR_TYPE_TSIG, "TSIG", 7, 7, type_tsig_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 },
2261 /* split in array, no longer contiguous */
2262 {LDNS_RR_TYPE_DLV, "DLV", 4, 4, type_ds_wireformat, LDNS_RDF_TYPE_NONE, LDNS_RR_NO_COMPRESS, 0 }
2263 };
2264 /** \endcond */
2265 
2266 /**
2267  * \def LDNS_RDATA_FIELD_DESCRIPTORS_COUNT
2268  * computes the number of rdata fields
2269  */
2270 #define LDNS_RDATA_FIELD_DESCRIPTORS_COUNT \
2271 	(sizeof(rdata_field_descriptors)/sizeof(rdata_field_descriptors[0]))
2272 
2273 const ldns_rr_descriptor *
2274 ldns_rr_descript(uint16_t type)
2275 {
2276 	size_t i;
2277 	if (type <= LDNS_RDATA_FIELD_DESCRIPTORS_COMMON) {
2278 		return &rdata_field_descriptors[type];
2279 	} else {
2280 		/* because not all array index equals type code */
2281 		for (i = LDNS_RDATA_FIELD_DESCRIPTORS_COMMON;
2282 		     i < LDNS_RDATA_FIELD_DESCRIPTORS_COUNT;
2283 		     i++) {
2284 		        if (rdata_field_descriptors[i]._type == type) {
2285 		     		return &rdata_field_descriptors[i];
2286 			}
2287 		}
2288                 return &rdata_field_descriptors[0];
2289 	}
2290 }
2291 
2292 size_t
2293 ldns_rr_descriptor_minimum(const ldns_rr_descriptor *descriptor)
2294 {
2295 	if (descriptor) {
2296 		return descriptor->_minimum;
2297 	} else {
2298 		return 0;
2299 	}
2300 }
2301 
2302 size_t
2303 ldns_rr_descriptor_maximum(const ldns_rr_descriptor *descriptor)
2304 {
2305 	if (descriptor) {
2306 		if (descriptor->_variable != LDNS_RDF_TYPE_NONE) {
2307 			/* Should really be SIZE_MAX... bad FreeBSD.  */
2308 			return UINT_MAX;
2309 		} else {
2310 			return descriptor->_maximum;
2311 		}
2312 	} else {
2313 		return 0;
2314 	}
2315 }
2316 
2317 ldns_rdf_type
2318 ldns_rr_descriptor_field_type(const ldns_rr_descriptor *descriptor,
2319                               size_t index)
2320 {
2321 	assert(descriptor != NULL);
2322 	assert(index < descriptor->_maximum
2323 	       || descriptor->_variable != LDNS_RDF_TYPE_NONE);
2324 	if (index < descriptor->_maximum) {
2325 		return descriptor->_wireformat[index];
2326 	} else {
2327 		return descriptor->_variable;
2328 	}
2329 }
2330 
2331 ldns_rr_type
2332 ldns_get_rr_type_by_name(const char *name)
2333 {
2334 	unsigned int i;
2335 	const char *desc_name;
2336 	const ldns_rr_descriptor *desc;
2337 
2338 	/* TYPEXX representation */
2339 	if (strlen(name) > 4 && strncasecmp(name, "TYPE", 4) == 0) {
2340 		return atoi(name + 4);
2341 	}
2342 
2343 	/* Normal types */
2344 	for (i = 0; i < (unsigned int) LDNS_RDATA_FIELD_DESCRIPTORS_COUNT; i++) {
2345 		desc = &rdata_field_descriptors[i];
2346 		desc_name = desc->_name;
2347 		if(desc_name &&
2348 		   strlen(name) == strlen(desc_name) &&
2349 		   strncasecmp(name, desc_name, strlen(desc_name)) == 0) {
2350 			/* because not all array index equals type code */
2351 			return desc->_type;
2352 		}
2353 	}
2354 
2355 	/* special cases for query types */
2356 	if (strlen(name) == 4 && strncasecmp(name, "IXFR", 4) == 0) {
2357 		return 251;
2358 	} else if (strlen(name) == 4 && strncasecmp(name, "AXFR", 4) == 0) {
2359 		return 252;
2360 	} else if (strlen(name) == 5 && strncasecmp(name, "MAILB", 5) == 0) {
2361 		return 253;
2362 	} else if (strlen(name) == 5 && strncasecmp(name, "MAILA", 5) == 0) {
2363 		return 254;
2364 	} else if (strlen(name) == 3 && strncasecmp(name, "ANY", 3) == 0) {
2365 		return 255;
2366 	}
2367 
2368 	return 0;
2369 }
2370 
2371 ldns_rr_class
2372 ldns_get_rr_class_by_name(const char *name)
2373 {
2374 	ldns_lookup_table *lt;
2375 
2376 	/* CLASSXX representation */
2377 	if (strlen(name) > 5 && strncasecmp(name, "CLASS", 5) == 0) {
2378 		return atoi(name + 5);
2379 	}
2380 
2381 	/* Normal types */
2382 	lt = ldns_lookup_by_name(ldns_rr_classes, name);
2383 
2384 	if (lt) {
2385 		return lt->id;
2386 	}
2387 	return 0;
2388 }
2389 
2390 
2391 ldns_rr_type
2392 ldns_rdf2rr_type(const ldns_rdf *rd)
2393 {
2394         ldns_rr_type r;
2395 
2396         if (!rd) {
2397                 return 0;
2398         }
2399 
2400         if (ldns_rdf_get_type(rd) != LDNS_RDF_TYPE_TYPE) {
2401                 return 0;
2402         }
2403 
2404         r = (ldns_rr_type) ldns_rdf2native_int16(rd);
2405         return r;
2406 }
2407 
2408 ldns_rr_type
2409 ldns_rr_list_type(const ldns_rr_list *rr_list)
2410 {
2411 	if (rr_list && ldns_rr_list_rr_count(rr_list) > 0) {
2412 		return ldns_rr_get_type(ldns_rr_list_rr(rr_list, 0));
2413 	} else {
2414 		return 0;
2415 	}
2416 }
2417 
2418 ldns_rdf *
2419 ldns_rr_list_owner(const ldns_rr_list *rr_list)
2420 {
2421 	if (rr_list && ldns_rr_list_rr_count(rr_list) > 0) {
2422 		return ldns_rr_owner(ldns_rr_list_rr(rr_list, 0));
2423 	} else {
2424 		return NULL;
2425 	}
2426 }
2427