rdata.c
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1/*
2 * rdata.c
3 *
4 * rdata implementation
5 *
6 * a Net::DNS like library for C
7 *
8 * (c) NLnet Labs, 2004-2006
9 *
10 * See the file LICENSE for the license
11 */
12
13#include <ldns/config.h>
14
15#include <ldns/ldns.h>
16
17/*
18 * Access functions
19 * do this as functions to get type checking
20 */
21
22/* read */
23size_t
24ldns_rdf_size(const ldns_rdf *rd)
25{
26 assert(rd != NULL);
27 return rd->_size;
28}
29
30ldns_rdf_type
31ldns_rdf_get_type(const ldns_rdf *rd)
32{
33 assert(rd != NULL);
34 return rd->_type;
35}
36
37uint8_t *
38ldns_rdf_data(const ldns_rdf *rd)
39{
40 assert(rd != NULL);
41 return rd->_data;
42}
43
44/* write */
45void
46ldns_rdf_set_size(ldns_rdf *rd, size_t size)
47{
48 assert(rd != NULL);
49 rd->_size = size;
50}
51
52void
53ldns_rdf_set_type(ldns_rdf *rd, ldns_rdf_type type)
54{
55 assert(rd != NULL);
56 rd->_type = type;
57}
58
59void
60ldns_rdf_set_data(ldns_rdf *rd, void *data)
61{
62 /* only copy the pointer */
63 assert(rd != NULL);
64 rd->_data = data;
65}
66
67/* for types that allow it, return
68 * the native/host order type */
69uint8_t
70ldns_rdf2native_int8(const ldns_rdf *rd)
71{
72 uint8_t data;
73
74 /* only allow 8 bit rdfs */
75 if (ldns_rdf_size(rd) != LDNS_RDF_SIZE_BYTE) {
76 return 0;
77 }
78
79 memcpy(&data, ldns_rdf_data(rd), sizeof(data));
80 return data;
81}
82
83uint16_t
84ldns_rdf2native_int16(const ldns_rdf *rd)
85{
86 uint16_t data;
87
88 /* only allow 16 bit rdfs */
89 if (ldns_rdf_size(rd) != LDNS_RDF_SIZE_WORD) {
90 return 0;
91 }
92
93 memcpy(&data, ldns_rdf_data(rd), sizeof(data));
94 return ntohs(data);
95}
96
97uint32_t
98ldns_rdf2native_int32(const ldns_rdf *rd)
99{
100 uint32_t data;
101
102 /* only allow 32 bit rdfs */
103 if (ldns_rdf_size(rd) != LDNS_RDF_SIZE_DOUBLEWORD) {
104 return 0;
105 }
106
107 memcpy(&data, ldns_rdf_data(rd), sizeof(data));
108 return ntohl(data);
109}
110
111time_t
112ldns_rdf2native_time_t(const ldns_rdf *rd)
113{
114 uint32_t data;
115
116 /* only allow 32 bit rdfs */
117 if (ldns_rdf_size(rd) != LDNS_RDF_SIZE_DOUBLEWORD ||
118 ldns_rdf_get_type(rd) != LDNS_RDF_TYPE_TIME) {
119 return 0;
120 }
121 memcpy(&data, ldns_rdf_data(rd), sizeof(data));
122 return (time_t)ntohl(data);
123}
124
125ldns_rdf *
126ldns_native2rdf_int8(ldns_rdf_type type, uint8_t value)
127{
128 return ldns_rdf_new_frm_data(type, LDNS_RDF_SIZE_BYTE, &value);
129}
130
131ldns_rdf *
132ldns_native2rdf_int16(ldns_rdf_type type, uint16_t value)
133{
134 uint16_t *rdf_data = LDNS_XMALLOC(uint16_t, 1);
135 ldns_rdf* rdf;
136 if (!rdf_data) {
137 return NULL;
138 }
139 ldns_write_uint16(rdf_data, value);
140 rdf = ldns_rdf_new(type, LDNS_RDF_SIZE_WORD, rdf_data);
141 if(!rdf)
142 LDNS_FREE(rdf_data);
143 return rdf;
144}
145
146ldns_rdf *
147ldns_native2rdf_int32(ldns_rdf_type type, uint32_t value)
148{
149 uint32_t *rdf_data = LDNS_XMALLOC(uint32_t, 1);
150 ldns_rdf* rdf;
151 if (!rdf_data) {
152 return NULL;
153 }
154 ldns_write_uint32(rdf_data, value);
155 rdf = ldns_rdf_new(type, LDNS_RDF_SIZE_DOUBLEWORD, rdf_data);
156 if(!rdf)
157 LDNS_FREE(rdf_data);
158 return rdf;
159}
160
161ldns_rdf *
162ldns_native2rdf_int16_data(size_t size, uint8_t *data)
163{
164 uint8_t *rdf_data = LDNS_XMALLOC(uint8_t, size + 2);
165 ldns_rdf* rdf;
166 if (!rdf_data) {
167 return NULL;
168 }
169 ldns_write_uint16(rdf_data, size);
170 memcpy(rdf_data + 2, data, size);
171 rdf = ldns_rdf_new(LDNS_RDF_TYPE_INT16_DATA, size + 2, rdf_data);
172 if(!rdf)
173 LDNS_FREE(rdf_data);
174 return rdf;
175}
176
177/* note: data must be allocated memory */
178ldns_rdf *
179ldns_rdf_new(ldns_rdf_type type, size_t size, void *data)
180{
181 ldns_rdf *rd;
182 rd = LDNS_MALLOC(ldns_rdf);
183 if (!rd) {
184 return NULL;
185 }
186 ldns_rdf_set_size(rd, size);
187 ldns_rdf_set_type(rd, type);
188 ldns_rdf_set_data(rd, data);
189 return rd;
190}
191
192ldns_rdf *
193ldns_rdf_new_frm_data(ldns_rdf_type type, size_t size, const void *data)
194{
195 ldns_rdf *rdf;
196
197 /* if the size is too big, fail */
198 if (size > LDNS_MAX_RDFLEN) {
199 return NULL;
200 }
201
202 /* allocate space */
203 rdf = LDNS_MALLOC(ldns_rdf);
204 if (!rdf) {
205 return NULL;
206 }
207 rdf->_data = LDNS_XMALLOC(uint8_t, size);
208 if (!rdf->_data) {
209 LDNS_FREE(rdf);
210 return NULL;
211 }
212
213 /* set the values */
214 ldns_rdf_set_type(rdf, type);
215 ldns_rdf_set_size(rdf, size);
216 memcpy(rdf->_data, data, size);
217
218 return rdf;
219}
220
221ldns_rdf *
222ldns_rdf_clone(const ldns_rdf *rd)
223{
224 assert(rd != NULL);
225 return (ldns_rdf_new_frm_data( ldns_rdf_get_type(rd),
226 ldns_rdf_size(rd), ldns_rdf_data(rd)));
227}
228
229void
230ldns_rdf_deep_free(ldns_rdf *rd)
231{
232 if (rd) {
233 if (rd->_data) {
234 LDNS_FREE(rd->_data);
235 }
236 LDNS_FREE(rd);
237 }
238}
239
240void
241ldns_rdf_free(ldns_rdf *rd)
242{
243 if (rd) {
244 LDNS_FREE(rd);
245 }
246}
247
248ldns_rdf *
249ldns_rdf_new_frm_str(ldns_rdf_type type, const char *str)
250{
251 ldns_rdf *rdf = NULL;
252 ldns_status status;
253
254 switch (type) {
255 case LDNS_RDF_TYPE_DNAME:
256 status = ldns_str2rdf_dname(&rdf, str);
257 break;
258 case LDNS_RDF_TYPE_INT8:
259 status = ldns_str2rdf_int8(&rdf, str);
260 break;
261 case LDNS_RDF_TYPE_INT16:
262 status = ldns_str2rdf_int16(&rdf, str);
263 break;
264 case LDNS_RDF_TYPE_INT32:
265 status = ldns_str2rdf_int32(&rdf, str);
266 break;
267 case LDNS_RDF_TYPE_A:
268 status = ldns_str2rdf_a(&rdf, str);
269 break;
270 case LDNS_RDF_TYPE_AAAA:
271 status = ldns_str2rdf_aaaa(&rdf, str);
272 break;
273 case LDNS_RDF_TYPE_STR:
274 status = ldns_str2rdf_str(&rdf, str);
275 break;
276 case LDNS_RDF_TYPE_APL:
277 status = ldns_str2rdf_apl(&rdf, str);
278 break;
279 case LDNS_RDF_TYPE_B64:
280 status = ldns_str2rdf_b64(&rdf, str);
281 break;
282 case LDNS_RDF_TYPE_B32_EXT:
283 status = ldns_str2rdf_b32_ext(&rdf, str);
284 break;
285 case LDNS_RDF_TYPE_HEX:
286 status = ldns_str2rdf_hex(&rdf, str);
287 break;
288 case LDNS_RDF_TYPE_NSEC:
289 status = ldns_str2rdf_nsec(&rdf, str);
290 break;
291 case LDNS_RDF_TYPE_TYPE:
292 status = ldns_str2rdf_type(&rdf, str);
293 break;
294 case LDNS_RDF_TYPE_CLASS:
295 status = ldns_str2rdf_class(&rdf, str);
296 break;
297 case LDNS_RDF_TYPE_CERT_ALG:
298 status = ldns_str2rdf_cert_alg(&rdf, str);
299 break;
300 case LDNS_RDF_TYPE_ALG:
301 status = ldns_str2rdf_alg(&rdf, str);
302 break;
303 case LDNS_RDF_TYPE_UNKNOWN:
304 status = ldns_str2rdf_unknown(&rdf, str);
305 break;
306 case LDNS_RDF_TYPE_TIME:
307 status = ldns_str2rdf_time(&rdf, str);
308 break;
309 case LDNS_RDF_TYPE_PERIOD:
310 status = ldns_str2rdf_period(&rdf, str);
311 break;
312 case LDNS_RDF_TYPE_HIP:
313 status = ldns_str2rdf_hip(&rdf, str);
314 break;
315 case LDNS_RDF_TYPE_SERVICE:
316 status = ldns_str2rdf_service(&rdf, str);
317 break;
318 case LDNS_RDF_TYPE_LOC:
319 status = ldns_str2rdf_loc(&rdf, str);
320 break;
321 case LDNS_RDF_TYPE_WKS:
322 status = ldns_str2rdf_wks(&rdf, str);
323 break;
324 case LDNS_RDF_TYPE_NSAP:
325 status = ldns_str2rdf_nsap(&rdf, str);
326 break;
327 case LDNS_RDF_TYPE_ATMA:
328 status = ldns_str2rdf_atma(&rdf, str);
329 break;
330 case LDNS_RDF_TYPE_IPSECKEY:
331 status = ldns_str2rdf_ipseckey(&rdf, str);
332 break;
333 case LDNS_RDF_TYPE_NSEC3_SALT:
334 status = ldns_str2rdf_nsec3_salt(&rdf, str);
335 break;
336 case LDNS_RDF_TYPE_NSEC3_NEXT_OWNER:
337 status = ldns_str2rdf_b32_ext(&rdf, str);
338 break;
339 case LDNS_RDF_TYPE_ILNP64:
340 status = ldns_str2rdf_ilnp64(&rdf, str);
341 break;
342 case LDNS_RDF_TYPE_EUI48:
343 status = ldns_str2rdf_eui48(&rdf, str);
344 break;
345 case LDNS_RDF_TYPE_EUI64:
346 status = ldns_str2rdf_eui64(&rdf, str);
347 break;
348 case LDNS_RDF_TYPE_TAG:
349 status = ldns_str2rdf_tag(&rdf, str);
350 break;
351 case LDNS_RDF_TYPE_LONG_STR:
352 status = ldns_str2rdf_long_str(&rdf, str);
353 break;
354 case LDNS_RDF_TYPE_CERTIFICATE_USAGE:
355 status = ldns_str2rdf_certificate_usage(&rdf, str);
356 break;
357 case LDNS_RDF_TYPE_SELECTOR:
358 status = ldns_str2rdf_selector(&rdf, str);
359 break;
360 case LDNS_RDF_TYPE_MATCHING_TYPE:
361 status = ldns_str2rdf_matching_type(&rdf, str);
362 break;
363 case LDNS_RDF_TYPE_AMTRELAY:
364 status = ldns_str2rdf_amtrelay(&rdf, str);
365 break;
366 case LDNS_RDF_TYPE_SVCPARAMS:
367 status = ldns_str2rdf_svcparams(&rdf, str);
368 break;
369 case LDNS_RDF_TYPE_NONE:
370 default:
371 /* default default ??? */
372 status = LDNS_STATUS_ERR;
373 break;
374 }
375 if (LDNS_STATUS_OK == status) {
376 ldns_rdf_set_type(rdf, type);
377 return rdf;
378 }
379 if (rdf) {
380 LDNS_FREE(rdf);
381 }
382 return NULL;
383}
384
385ldns_status
386ldns_rdf_new_frm_fp(ldns_rdf **rdf, ldns_rdf_type type, FILE *fp)
387{
388 return ldns_rdf_new_frm_fp_l(rdf, type, fp, NULL);
389}
390
391ldns_status
392ldns_rdf_new_frm_fp_l(ldns_rdf **rdf, ldns_rdf_type type, FILE *fp, int *line_nr)
393{
394 char *line;
395 ldns_rdf *r;
396 ssize_t t;
397
398 line = LDNS_XMALLOC(char, LDNS_MAX_LINELEN + 1);
399 if (!line) {
400 return LDNS_STATUS_MEM_ERR;
401 }
402
403 /* read an entire line in from the file */
404 if ((t = ldns_fget_token_l(fp, line, LDNS_PARSE_SKIP_SPACE, 0, line_nr)) == -1 || t == 0) {
405 LDNS_FREE(line);
406 return LDNS_STATUS_SYNTAX_RDATA_ERR;
407 }
408 r = ldns_rdf_new_frm_str(type, (const char*) line);
409 LDNS_FREE(line);
410 if (rdf) {
411 *rdf = r;
412 return LDNS_STATUS_OK;
413 } else {
414 return LDNS_STATUS_NULL;
415 }
416}
417
418ldns_rdf *
419ldns_rdf_address_reverse(const ldns_rdf *rd)
420{
421 uint8_t buf_4[LDNS_IP4ADDRLEN];
422 uint8_t buf_6[LDNS_IP6ADDRLEN * 2];
423 ldns_rdf *rev;
424 ldns_rdf *in_addr;
425 ldns_rdf *ret_dname;
426 uint8_t octet;
427 uint8_t nnibble;
428 uint8_t nibble;
429 uint8_t i, j;
430
431 char *char_dname;
432 int nbit;
433
434 if (ldns_rdf_get_type(rd) != LDNS_RDF_TYPE_A &&
435 ldns_rdf_get_type(rd) != LDNS_RDF_TYPE_AAAA) {
436 return NULL;
437 }
438
439 in_addr = NULL;
440 ret_dname = NULL;
441
442 switch(ldns_rdf_get_type(rd)) {
443 case LDNS_RDF_TYPE_A:
444 /* the length of the buffer is 4 */
445 buf_4[3] = ldns_rdf_data(rd)[0];
446 buf_4[2] = ldns_rdf_data(rd)[1];
447 buf_4[1] = ldns_rdf_data(rd)[2];
448 buf_4[0] = ldns_rdf_data(rd)[3];
449 in_addr = ldns_dname_new_frm_str("in-addr.arpa.");
450 if (!in_addr) {
451 return NULL;
452 }
453 /* make a new rdf and convert that back */
454 rev = ldns_rdf_new_frm_data( LDNS_RDF_TYPE_A,
455 LDNS_IP4ADDRLEN, (void*)&buf_4);
456 if (!rev) {
457 LDNS_FREE(in_addr);
458 return NULL;
459 }
460
461 /* convert rev to a string */
462 char_dname = ldns_rdf2str(rev);
463 if (!char_dname) {
464 LDNS_FREE(in_addr);
465 ldns_rdf_deep_free(rev);
466 return NULL;
467 }
468 /* transform back to rdf with type dname */
469 ret_dname = ldns_dname_new_frm_str(char_dname);
470 if (!ret_dname) {
471 LDNS_FREE(in_addr);
472 ldns_rdf_deep_free(rev);
473 LDNS_FREE(char_dname);
474 return NULL;
475 }
476 /* not needed anymore */
477 ldns_rdf_deep_free(rev);
478 LDNS_FREE(char_dname);
479 break;
480 case LDNS_RDF_TYPE_AAAA:
481 /* some foo magic to reverse the nibbles ... */
482
483 for (nbit = 127; nbit >= 0; nbit = nbit - 4) {
484 /* calculate octet (8 bit) */
485 octet = ( ((unsigned int) nbit) & 0x78) >> 3;
486 /* calculate nibble */
487 nnibble = ( ((unsigned int) nbit) & 0x04) >> 2;
488 /* extract nibble */
489 nibble = (ldns_rdf_data(rd)[octet] & ( 0xf << (4 * (1 -
490 nnibble)) ) ) >> ( 4 * (1 -
491 nnibble));
492
493 buf_6[(LDNS_IP6ADDRLEN * 2 - 1) -
494 (octet * 2 + nnibble)] =
495 (uint8_t)ldns_int_to_hexdigit((int)nibble);
496 }
497
498 char_dname = LDNS_XMALLOC(char, (LDNS_IP6ADDRLEN * 4));
499 if (!char_dname) {
500 return NULL;
501 }
502 char_dname[LDNS_IP6ADDRLEN * 4 - 1] = '\0'; /* closure */
503
504 /* walk the string and add . 's */
505 for (i = 0, j = 0; i < LDNS_IP6ADDRLEN * 2; i++, j = j + 2) {
506 char_dname[j] = (char)buf_6[i];
507 if (i != LDNS_IP6ADDRLEN * 2 - 1) {
508 char_dname[j + 1] = '.';
509 }
510 }
511 in_addr = ldns_dname_new_frm_str("ip6.arpa.");
512 if (!in_addr) {
513 LDNS_FREE(char_dname);
514 return NULL;
515 }
516
517 /* convert rev to a string */
518 ret_dname = ldns_dname_new_frm_str(char_dname);
519 LDNS_FREE(char_dname);
520 if (!ret_dname) {
521 ldns_rdf_deep_free(in_addr);
522 return NULL;
523 }
524 break;
525 default:
526 break;
527 }
528 /* add the suffix */
529 rev = ldns_dname_cat_clone(ret_dname, in_addr);
530
531 ldns_rdf_deep_free(ret_dname);
532 ldns_rdf_deep_free(in_addr);
533 return rev;
534}
535
536ldns_status
537ldns_rdf_hip_get_alg_hit_pk(ldns_rdf *rdf, uint8_t* alg,
538 uint8_t *hit_size, uint8_t** hit,
539 uint16_t *pk_size, uint8_t** pk)
540{
541 uint8_t *data;
542 size_t rdf_size;
543
544 if (! rdf || ! alg || ! hit || ! hit_size || ! pk || ! pk_size) {
545 return LDNS_STATUS_INVALID_POINTER;
546 } else if (ldns_rdf_get_type(rdf) != LDNS_RDF_TYPE_HIP) {
547 return LDNS_STATUS_INVALID_RDF_TYPE;
548 } else if ((rdf_size = ldns_rdf_size(rdf)) < 6) {
549 return LDNS_STATUS_WIRE_RDATA_ERR;
550 }
551 data = ldns_rdf_data(rdf);
552 *hit_size = data[0];
553 *alg = data[1];
554 *pk_size = ldns_read_uint16(data + 2);
555 *hit = data + 4;
556 *pk = data + 4 + *hit_size;
557 if (*hit_size == 0 || *pk_size == 0 ||
558 rdf_size < (size_t) *hit_size + *pk_size + 4) {
559 return LDNS_STATUS_WIRE_RDATA_ERR;
560 }
561 return LDNS_STATUS_OK;
562}
563
564ldns_status
565ldns_rdf_hip_new_frm_alg_hit_pk(ldns_rdf** rdf, uint8_t alg,
566 uint8_t hit_size, uint8_t *hit,
567 uint16_t pk_size, uint8_t *pk)
568{
569 uint8_t *data;
570
571 if (! rdf) {
572 return LDNS_STATUS_INVALID_POINTER;
573 }
574 if (4 + hit_size + pk_size > LDNS_MAX_RDFLEN) {
575 return LDNS_STATUS_RDATA_OVERFLOW;
576 }
577 data = LDNS_XMALLOC(uint8_t, 4 + hit_size + pk_size);
578 if (data == NULL) {
579 return LDNS_STATUS_MEM_ERR;
580 }
581 data[0] = hit_size;
582 data[1] = alg;
583 ldns_write_uint16(data + 2, pk_size);
584 memcpy(data + 4, hit, hit_size);
585 memcpy(data + 4 + hit_size, pk, pk_size);
586 *rdf = ldns_rdf_new(LDNS_RDF_TYPE_HIP, 4 + hit_size + pk_size, data);
587 if (! *rdf) {
588 LDNS_FREE(data);
589 return LDNS_STATUS_MEM_ERR;
590 }
591 return LDNS_STATUS_OK;
592}
593
594ldns_status
595ldns_octet(char *word, size_t *length)
596{
597 char *s;
598 char *p;
599 *length = 0;
600
601 for (s = p = word; *s != '\0'; s++,p++) {
602 switch (*s) {
603 case '.':
604 if (s[1] == '.') {
605 return LDNS_STATUS_EMPTY_LABEL;
606 }
607 *p = *s;
608 (*length)++;
609 break;
610 case '\\':
611 if ('0' <= s[1] && s[1] <= '9' &&
612 '0' <= s[2] && s[2] <= '9' &&
613 '0' <= s[3] && s[3] <= '9') {
614 /* \DDD seen */
615 int val = ((s[1] - '0') * 100 +
616 (s[2] - '0') * 10 + (s[3] - '0'));
617
618 if (0 <= val && val <= 255) {
619 /* this also handles \0 */
620 s += 3;
621 *p = val;
622 (*length)++;
623 } else {
624 return LDNS_STATUS_DDD_OVERFLOW;
625 }
626 } else {
627 /* an escaped character, like <space> ?
628 * remove the '\' keep the rest */
629 *p = *++s;
630 (*length)++;
631 }
632 break;
633 case '\"':
634 /* non quoted " Is either first or the last character in
635 * the string */
636
637 *p = *++s; /* skip it */
638 (*length)++;
639 /* I'm not sure if this is needed in libdns... MG */
640 if ( *s == '\0' ) {
641 /* ok, it was the last one */
642 *p = '\0';
643 return LDNS_STATUS_OK;
644 }
645 break;
646 default:
647 *p = *s;
648 (*length)++;
649 break;
650 }
651 }
652 *p = '\0';
653 return LDNS_STATUS_OK;
654}
655
656int
657ldns_rdf_compare(const ldns_rdf *rd1, const ldns_rdf *rd2)
658{
659 uint16_t i1, i2, i;
660 uint8_t *d1, *d2;
661
662 /* only when both are not NULL we can say anything about them */
663 if (!rd1 && !rd2) {
664 return 0;
665 }
666 if (!rd1 || !rd2) {
667 return -1;
668 }
669 i1 = ldns_rdf_size(rd1);
670 i2 = ldns_rdf_size(rd2);
671
672 if (i1 < i2) {
673 return -1;
674 } else if (i1 > i2) {
675 return +1;
676 } else {
677 d1 = (uint8_t*)ldns_rdf_data(rd1);
678 d2 = (uint8_t*)ldns_rdf_data(rd2);
679 for(i = 0; i < i1; i++) {
680 if (d1[i] < d2[i]) {
681 return -1;
682 } else if (d1[i] > d2[i]) {
683 return +1;
684 }
685 }
686 }
687 return 0;
688}
689
690uint32_t
691ldns_str2period(const char *nptr, const char **endptr)
692{
693 int sign = 0;
694 uint32_t i = 0;
695 uint32_t seconds = 0;
696
697 for(*endptr = nptr; **endptr; (*endptr)++) {
698 switch (**endptr) {
699 case ' ':
700 case '\t':
701 break;
702 case '-':
703 if(sign == 0) {
704 sign = -1;
705 } else {
706 return seconds;
707 }
708 break;
709 case '+':
710 if(sign == 0) {
711 sign = 1;
712 } else {
713 return seconds;
714 }
715 break;
716 case 's':
717 case 'S':
718 seconds += i;
719 i = 0;
720 break;
721 case 'm':
722 case 'M':
723 seconds += i * 60;
724 i = 0;
725 break;
726 case 'h':
727 case 'H':
728 seconds += i * 60 * 60;
729 i = 0;
730 break;
731 case 'd':
732 case 'D':
733 seconds += i * 60 * 60 * 24;
734 i = 0;
735 break;
736 case 'w':
737 case 'W':
738 seconds += i * 60 * 60 * 24 * 7;
739 i = 0;
740 break;
741 case '0':
742 case '1':
743 case '2':
744 case '3':
745 case '4':
746 case '5':
747 case '6':
748 case '7':
749 case '8':
750 case '9':
751 i *= 10;
752 i += (**endptr - '0');
753 break;
754 default:
755 seconds += i;
756 /* disregard signedness */
757 return seconds;
758 }
759 }
760 seconds += i;
761 /* disregard signedness */
762 return seconds;
763}
ldns_dname_cat_clone
ldns_rdf * ldns_dname_cat_clone(const ldns_rdf *rd1, const ldns_rdf *rd2)
concatenates two dnames together
Definition dname.c:52
ldns_dname_new_frm_str
ldns_rdf * ldns_dname_new_frm_str(const char *str)
creates a new dname rdf from a string.
Definition dname.c:268
LDNS_STATUS_WIRE_RDATA_ERR
@ LDNS_STATUS_WIRE_RDATA_ERR
Definition error.h:125
LDNS_STATUS_NULL
@ LDNS_STATUS_NULL
Definition error.h:51
LDNS_STATUS_ERR
@ LDNS_STATUS_ERR
Definition error.h:37
LDNS_STATUS_MEM_ERR
@ LDNS_STATUS_MEM_ERR
Definition error.h:34
LDNS_STATUS_SYNTAX_RDATA_ERR
@ LDNS_STATUS_SYNTAX_RDATA_ERR
Definition error.h:83
LDNS_STATUS_INVALID_POINTER
@ LDNS_STATUS_INVALID_POINTER
Definition error.h:33
LDNS_STATUS_DDD_OVERFLOW
@ LDNS_STATUS_DDD_OVERFLOW
Definition error.h:31
LDNS_STATUS_INVALID_RDF_TYPE
@ LDNS_STATUS_INVALID_RDF_TYPE
Definition error.h:128
LDNS_STATUS_OK
@ LDNS_STATUS_OK
Definition error.h:26
LDNS_STATUS_EMPTY_LABEL
@ LDNS_STATUS_EMPTY_LABEL
Definition error.h:27
LDNS_STATUS_RDATA_OVERFLOW
@ LDNS_STATUS_RDATA_OVERFLOW
Definition error.h:129
ldns_status
enum ldns_enum_status ldns_status
Definition error.h:148
ldns_rdf2str
char * ldns_rdf2str(const ldns_rdf *rdf)
Converts the data in the rdata field to presentation format and returns that as a char *.
Definition host2str.c:3276
ldns.h
Including this file will include all ldns files, and define some lookup tables.
LDNS_IP4ADDRLEN
#define LDNS_IP4ADDRLEN
Definition ldns.h:132
LDNS_IP6ADDRLEN
#define LDNS_IP6ADDRLEN
Definition ldns.h:133
ldns_fget_token_l
ssize_t ldns_fget_token_l(FILE *f, char *token, const char *delim, size_t limit, int *line_nr)
returns a token/char from the stream F.
Definition parse.c:247
LDNS_PARSE_SKIP_SPACE
#define LDNS_PARSE_SKIP_SPACE
Definition parse.h:20
LDNS_MAX_LINELEN
#define LDNS_MAX_LINELEN
Definition parse.h:23
ldns_str2period
uint32_t ldns_str2period(const char *nptr, const char **endptr)
converts a ttl value (like 5d2h) to a long.
Definition rdata.c:691
ldns_rdf_hip_new_frm_alg_hit_pk
ldns_status ldns_rdf_hip_new_frm_alg_hit_pk(ldns_rdf **rdf, uint8_t alg, uint8_t hit_size, uint8_t *hit, uint16_t pk_size, uint8_t *pk)
Creates a new LDNS_RDF_TYPE_HIP rdf from given data.
Definition rdata.c:565
ldns_rdf_new_frm_str
ldns_rdf * ldns_rdf_new_frm_str(ldns_rdf_type type, const char *str)
creates a new rdf from a string.
Definition rdata.c:249
ldns_rdf_data
uint8_t * ldns_rdf_data(const ldns_rdf *rd)
returns the data of the rdf.
Definition rdata.c:38
ldns_rdf_clone
ldns_rdf * ldns_rdf_clone(const ldns_rdf *rd)
clones a rdf structure.
Definition rdata.c:222
ldns_rdf_get_type
ldns_rdf_type ldns_rdf_get_type(const ldns_rdf *rd)
returns the type of the rdf.
Definition rdata.c:31
ldns_rdf_set_type
void ldns_rdf_set_type(ldns_rdf *rd, ldns_rdf_type type)
sets the size of the rdf.
Definition rdata.c:53
ldns_rdf_new_frm_data
ldns_rdf * ldns_rdf_new_frm_data(ldns_rdf_type type, size_t size, const void *data)
allocates a new rdf structure and fills it.
Definition rdata.c:193
ldns_rdf_deep_free
void ldns_rdf_deep_free(ldns_rdf *rd)
frees a rdf structure and frees the data.
Definition rdata.c:230
ldns_rdf2native_int32
uint32_t ldns_rdf2native_int32(const ldns_rdf *rd)
returns the native uint32_t representation from the rdf.
Definition rdata.c:98
ldns_rdf2native_int16
uint16_t ldns_rdf2native_int16(const ldns_rdf *rd)
returns the native uint16_t representation from the rdf.
Definition rdata.c:84
ldns_native2rdf_int16
ldns_rdf * ldns_native2rdf_int16(ldns_rdf_type type, uint16_t value)
returns the rdf containing the native uint16_t representation.
Definition rdata.c:132
ldns_octet
ldns_status ldns_octet(char *word, size_t *length)
removes \DDD, \[space] and other escapes from the input.
Definition rdata.c:595
ldns_native2rdf_int16_data
ldns_rdf * ldns_native2rdf_int16_data(size_t size, uint8_t *data)
returns an int16_data rdf that contains the data in the given array, preceded by an int16 specifying ...
Definition rdata.c:162
ldns_rdf_new_frm_fp
ldns_status ldns_rdf_new_frm_fp(ldns_rdf **rdf, ldns_rdf_type type, FILE *fp)
creates a new rdf from a file containing a string.
Definition rdata.c:386
ldns_native2rdf_int8
ldns_rdf * ldns_native2rdf_int8(ldns_rdf_type type, uint8_t value)
returns the rdf containing the native uint8_t repr.
Definition rdata.c:126
ldns_rdf2native_int8
uint8_t ldns_rdf2native_int8(const ldns_rdf *rd)
returns the native uint8_t representation from the rdf.
Definition rdata.c:70
ldns_native2rdf_int32
ldns_rdf * ldns_native2rdf_int32(ldns_rdf_type type, uint32_t value)
returns an rdf that contains the given int32 value.
Definition rdata.c:147
ldns_rdf_hip_get_alg_hit_pk
ldns_status ldns_rdf_hip_get_alg_hit_pk(ldns_rdf *rdf, uint8_t *alg, uint8_t *hit_size, uint8_t **hit, uint16_t *pk_size, uint8_t **pk)
Gets the algorithm value, the HIT and Public Key data from the rdf with type LDNS_RDF_TYPE_HIP.
Definition rdata.c:537
ldns_rdf_size
size_t ldns_rdf_size(const ldns_rdf *rd)
returns the size of the rdf.
Definition rdata.c:24
ldns_rdf2native_time_t
time_t ldns_rdf2native_time_t(const ldns_rdf *rd)
returns the native time_t representation from the rdf.
Definition rdata.c:112
ldns_rdf_set_data
void ldns_rdf_set_data(ldns_rdf *rd, void *data)
sets the size of the rdf.
Definition rdata.c:60
ldns_rdf_set_size
void ldns_rdf_set_size(ldns_rdf *rd, size_t size)
sets the size of the rdf.
Definition rdata.c:46
ldns_rdf_new
ldns_rdf * ldns_rdf_new(ldns_rdf_type type, size_t size, void *data)
allocates a new rdf structure and fills it.
Definition rdata.c:179
ldns_rdf_free
void ldns_rdf_free(ldns_rdf *rd)
frees a rdf structure, leaving the data pointer intact.
Definition rdata.c:241
ldns_rdf_compare
int ldns_rdf_compare(const ldns_rdf *rd1, const ldns_rdf *rd2)
compares two rdf's on their wire formats.
Definition rdata.c:657
ldns_rdf_address_reverse
ldns_rdf * ldns_rdf_address_reverse(const ldns_rdf *rd)
reverses an rdf, only actually useful for AAAA and A records.
Definition rdata.c:419
ldns_rdf_new_frm_fp_l
ldns_status ldns_rdf_new_frm_fp_l(ldns_rdf **rdf, ldns_rdf_type type, FILE *fp, int *line_nr)
creates a new rdf from a file containing a string.
Definition rdata.c:392
LDNS_RDF_SIZE_WORD
#define LDNS_RDF_SIZE_WORD
Definition rdata.h:34
LDNS_MAX_RDFLEN
#define LDNS_MAX_RDFLEN
Definition rdata.h:31
LDNS_RDF_SIZE_BYTE
#define LDNS_RDF_SIZE_BYTE
Definition rdata.h:33
LDNS_RDF_TYPE_INT32
@ LDNS_RDF_TYPE_INT32
32 bits
Definition rdata.h:56
LDNS_RDF_TYPE_TAG
@ LDNS_RDF_TYPE_TAG
A non-zero sequence of US-ASCII letters and numbers in lower case.
Definition rdata.h:126
LDNS_RDF_TYPE_NSAP
@ LDNS_RDF_TYPE_NSAP
NSAP.
Definition rdata.h:103
LDNS_RDF_TYPE_HIP
@ LDNS_RDF_TYPE_HIP
Represents the Public Key Algorithm, HIT and Public Key fields for the HIP RR types.
Definition rdata.h:92
LDNS_RDF_TYPE_B32_EXT
@ LDNS_RDF_TYPE_B32_EXT
b32 string
Definition rdata.h:66
LDNS_RDF_TYPE_NSEC3_NEXT_OWNER
@ LDNS_RDF_TYPE_NSEC3_NEXT_OWNER
nsec3 base32 string (with length byte on wire
Definition rdata.h:111
LDNS_RDF_TYPE_CERT_ALG
@ LDNS_RDF_TYPE_CERT_ALG
certificate algorithm
Definition rdata.h:78
LDNS_RDF_TYPE_EUI48
@ LDNS_RDF_TYPE_EUI48
6 * 8 bit hex numbers separated by dashes.
Definition rdata.h:119
LDNS_RDF_TYPE_SERVICE
@ LDNS_RDF_TYPE_SERVICE
protocol and port bitmaps
Definition rdata.h:97
LDNS_RDF_TYPE_EUI64
@ LDNS_RDF_TYPE_EUI64
8 * 8 bit hex numbers separated by dashes.
Definition rdata.h:121
LDNS_RDF_TYPE_PERIOD
@ LDNS_RDF_TYPE_PERIOD
period
Definition rdata.h:86
LDNS_RDF_TYPE_B64
@ LDNS_RDF_TYPE_B64
b64 string
Definition rdata.h:68
LDNS_RDF_TYPE_AAAA
@ LDNS_RDF_TYPE_AAAA
AAAA record.
Definition rdata.h:60
LDNS_RDF_TYPE_UNKNOWN
@ LDNS_RDF_TYPE_UNKNOWN
unknown types
Definition rdata.h:82
LDNS_RDF_TYPE_WKS
@ LDNS_RDF_TYPE_WKS
well known services
Definition rdata.h:101
LDNS_RDF_TYPE_DNAME
@ LDNS_RDF_TYPE_DNAME
domain name
Definition rdata.h:50
LDNS_RDF_TYPE_TIME
@ LDNS_RDF_TYPE_TIME
time (32 bits)
Definition rdata.h:84
LDNS_RDF_TYPE_SVCPARAMS
@ LDNS_RDF_TYPE_SVCPARAMS
draft-ietf-dnsop-svcb-https
Definition rdata.h:146
LDNS_RDF_TYPE_NSEC
@ LDNS_RDF_TYPE_NSEC
nsec type codes
Definition rdata.h:72
LDNS_RDF_TYPE_SELECTOR
@ LDNS_RDF_TYPE_SELECTOR
Definition rdata.h:139
LDNS_RDF_TYPE_NSEC3_SALT
@ LDNS_RDF_TYPE_NSEC3_SALT
nsec3 hash salt
Definition rdata.h:109
LDNS_RDF_TYPE_APL
@ LDNS_RDF_TYPE_APL
apl data
Definition rdata.h:64
LDNS_RDF_TYPE_A
@ LDNS_RDF_TYPE_A
A record.
Definition rdata.h:58
LDNS_RDF_TYPE_LONG_STR
@ LDNS_RDF_TYPE_LONG_STR
A <character-string> encoding of the value field as specified [RFC1035], Section 5....
Definition rdata.h:132
LDNS_RDF_TYPE_LOC
@ LDNS_RDF_TYPE_LOC
location data
Definition rdata.h:99
LDNS_RDF_TYPE_INT16_DATA
@ LDNS_RDF_TYPE_INT16_DATA
variable length any type rdata where the length is specified by the first 2 bytes
Definition rdata.h:95
LDNS_RDF_TYPE_ILNP64
@ LDNS_RDF_TYPE_ILNP64
4 shorts represented as 4 * 16 bit hex numbers separated by colons.
Definition rdata.h:116
LDNS_RDF_TYPE_ATMA
@ LDNS_RDF_TYPE_ATMA
ATMA.
Definition rdata.h:105
LDNS_RDF_TYPE_HEX
@ LDNS_RDF_TYPE_HEX
hex string
Definition rdata.h:70
LDNS_RDF_TYPE_NONE
@ LDNS_RDF_TYPE_NONE
none
Definition rdata.h:48
LDNS_RDF_TYPE_CLASS
@ LDNS_RDF_TYPE_CLASS
a class
Definition rdata.h:76
LDNS_RDF_TYPE_INT8
@ LDNS_RDF_TYPE_INT8
8 bits
Definition rdata.h:52
LDNS_RDF_TYPE_MATCHING_TYPE
@ LDNS_RDF_TYPE_MATCHING_TYPE
Definition rdata.h:140
LDNS_RDF_TYPE_IPSECKEY
@ LDNS_RDF_TYPE_IPSECKEY
IPSECKEY.
Definition rdata.h:107
LDNS_RDF_TYPE_CERTIFICATE_USAGE
@ LDNS_RDF_TYPE_CERTIFICATE_USAGE
Since RFC7218 TLSA records can be given with mnemonics, hence these rdata field types.
Definition rdata.h:138
LDNS_RDF_TYPE_STR
@ LDNS_RDF_TYPE_STR
txt string
Definition rdata.h:62
LDNS_RDF_TYPE_INT16
@ LDNS_RDF_TYPE_INT16
16 bits
Definition rdata.h:54
LDNS_RDF_TYPE_ALG
@ LDNS_RDF_TYPE_ALG
a key algorithm
Definition rdata.h:80
LDNS_RDF_TYPE_AMTRELAY
@ LDNS_RDF_TYPE_AMTRELAY
draft-ietf-mboned-driad-amt-discovery
Definition rdata.h:143
LDNS_RDF_TYPE_TYPE
@ LDNS_RDF_TYPE_TYPE
a RR type
Definition rdata.h:74
LDNS_RDF_SIZE_DOUBLEWORD
#define LDNS_RDF_SIZE_DOUBLEWORD
Definition rdata.h:35
ldns_rdf_type
enum ldns_enum_rdf_type ldns_rdf_type
Definition rdata.h:151
ldns_str2rdf_hex
ldns_status ldns_str2rdf_hex(ldns_rdf **rd, const char *str)
convert a hex value into wireformat
Definition str2host.c:644
ldns_str2rdf_amtrelay
ldns_status ldns_str2rdf_amtrelay(ldns_rdf **rd, const char *str)
Convert a "<precedence> <D-bit> <type> <relay>" encoding of the value field as specified in Section 4...
Definition str2host.c:1672
ldns_str2rdf_int8
ldns_status ldns_str2rdf_int8(ldns_rdf **rd, const char *bytestr)
convert a byte into wireformat
Definition str2host.c:228
ldns_str2rdf_certificate_usage
ldns_status ldns_str2rdf_certificate_usage(ldns_rdf **rd, const char *str)
convert a tlsa certificate usage value into wireformat
Definition str2host.c:839
ldns_str2rdf_hip
ldns_status ldns_str2rdf_hip(ldns_rdf **rd, const char *str)
Convert a "<algorithm> <hit> <pk>" encoding of the value field as specified in Section 6.
Definition str2host.c:1576
ldns_str2rdf_service
ldns_status ldns_str2rdf_service(ldns_rdf **rd, const char *str)
convert string with a protocol service into wireformat
ldns_str2rdf_atma
ldns_status ldns_str2rdf_atma(ldns_rdf **rd, const char *str)
convert a str with a ATMA RR into wireformat
Definition str2host.c:1255
ldns_str2rdf_type
ldns_status ldns_str2rdf_type(ldns_rdf **rd, const char *str)
convert a rrtype into wireformat
Definition str2host.c:738
ldns_str2rdf_nsec3_salt
ldns_status ldns_str2rdf_nsec3_salt(ldns_rdf **rd, const char *nsec3_salt)
Definition str2host.c:126
ldns_str2rdf_svcparams
ldns_status ldns_str2rdf_svcparams(ldns_rdf **rd, const char *str)
Convert a series of "key[=<value>]" encodings to wireformat as described in [draft-ietf-dnsop-svcb-ht...
Definition str2host.c:2331
ldns_str2rdf_period
ldns_status ldns_str2rdf_period(ldns_rdf **rd, const char *str)
Definition str2host.c:178
ldns_str2rdf_aaaa
ldns_status ldns_str2rdf_aaaa(ldns_rdf **rd, const char *str)
convert the str with an AAAA record into wireformat
Definition str2host.c:414
ldns_str2rdf_b32_ext
ldns_status ldns_str2rdf_b32_ext(ldns_rdf **rd, const char *str)
convert the string with the b32 ext hex data into wireformat
Definition str2host.c:613
ldns_str2rdf_long_str
ldns_status ldns_str2rdf_long_str(ldns_rdf **rd, const char *str)
Convert a <character-string> encoding of the value field as specified [RFC1035], Section 5....
Definition str2host.c:1529
ldns_str2rdf_class
ldns_status ldns_str2rdf_class(ldns_rdf **rd, const char *str)
convert string with a classname into wireformat
Definition str2host.c:749
ldns_str2rdf_alg
ldns_status ldns_str2rdf_alg(ldns_rdf **rd, const char *str)
convert an algorithm value into wireformat
Definition str2host.c:833
ldns_str2rdf_nsec
ldns_status ldns_str2rdf_nsec(ldns_rdf **rd, const char *str)
convert string with nsec into wireformat
Definition str2host.c:690
ldns_str2rdf_a
ldns_status ldns_str2rdf_a(ldns_rdf **rd, const char *str)
convert str with an A record into wireformat
Definition str2host.c:401
ldns_str2rdf_matching_type
ldns_status ldns_str2rdf_matching_type(ldns_rdf **rd, const char *str)
convert a tlsa matching type value into wireformat
Definition str2host.c:852
ldns_str2rdf_wks
ldns_status ldns_str2rdf_wks(ldns_rdf **rd, const char *str)
convert string with a WKS RR into wireformat
Definition str2host.c:1091
ldns_str2rdf_ilnp64
ldns_status ldns_str2rdf_ilnp64(ldns_rdf **rd, const char *str)
convert 4 * 16bit hex separated by colons into wireformat
Definition str2host.c:1429
ldns_str2rdf_time
ldns_status ldns_str2rdf_time(ldns_rdf **rd, const char *time)
convert a time string to a time value in wireformat
Definition str2host.c:57
ldns_str2rdf_nsap
ldns_status ldns_str2rdf_nsap(ldns_rdf **rd, const char *str)
convert a str with a NSAP RR into wireformat
Definition str2host.c:1236
ldns_str2rdf_eui64
ldns_status ldns_str2rdf_eui64(ldns_rdf **rd, const char *str)
convert 8 hex bytes separated by dashes into wireformat
Definition str2host.c:1475
ldns_str2rdf_loc
ldns_status ldns_str2rdf_loc(ldns_rdf **rd, const char *str)
convert a string with a LOC RR into wireformat
Definition str2host.c:916
ldns_str2rdf_str
ldns_status ldns_str2rdf_str(ldns_rdf **rd, const char *str)
convert a string into wireformat (think txt record)
Definition str2host.c:428
ldns_str2rdf_ipseckey
ldns_status ldns_str2rdf_ipseckey(ldns_rdf **rd, const char *str)
convert a str with a IPSECKEY RR into wireformat
Definition str2host.c:1275
ldns_str2rdf_selector
ldns_status ldns_str2rdf_selector(ldns_rdf **rd, const char *str)
convert a tlsa selector value into wireformat
Definition str2host.c:846
ldns_str2rdf_tag
ldns_status ldns_str2rdf_tag(ldns_rdf **rd, const char *str)
Convert a non-zero sequence of US-ASCII letters and numbers into wireformat.
Definition str2host.c:1500
ldns_str2rdf_apl
ldns_status ldns_str2rdf_apl(ldns_rdf **rd, const char *str)
convert str with the apl record into wireformat
Definition str2host.c:472
ldns_str2rdf_b64
ldns_status ldns_str2rdf_b64(ldns_rdf **rd, const char *str)
convert the string with the b64 data into wireformat
Definition str2host.c:583
ldns_str2rdf_dname
ldns_status ldns_str2rdf_dname(ldns_rdf **rd, const char *str)
convert a dname string into wireformat
Definition str2host.c:311
ldns_str2rdf_eui48
ldns_status ldns_str2rdf_eui48(ldns_rdf **rd, const char *str)
convert 6 hex bytes separated by dashes into wireformat
Definition str2host.c:1452
ldns_str2rdf_int32
ldns_status ldns_str2rdf_int32(ldns_rdf **rd, const char *longstr)
convert a strings into a 4 byte int in wireformat
Definition str2host.c:197
ldns_str2rdf_int16
ldns_status ldns_str2rdf_int16(ldns_rdf **rd, const char *shortstr)
convert a string to a int16 in wireformat
Definition str2host.c:36
ldns_str2rdf_cert_alg
ldns_status ldns_str2rdf_cert_alg(ldns_rdf **rd, const char *str)
convert an certificate algorithm value into wireformat
Definition str2host.c:763
ldns_str2rdf_unknown
ldns_status ldns_str2rdf_unknown(ldns_rdf **rd, const char *str)
convert a string with a unknown RR into wireformat
ldns_struct_rdf
Resource record data field.
Definition rdata.h:197
ldns_struct_rdf::_type
ldns_rdf_type _type
The type of the data.
Definition rdata.h:201
ldns_struct_rdf::_size
size_t _size
The size of the data (in octets)
Definition rdata.h:199
ldns_struct_rdf::_data
void * _data
Pointer to the data (raw octets)
Definition rdata.h:203
LDNS_FREE
#define LDNS_FREE(ptr)
Definition util.h:60
LDNS_MALLOC
#define LDNS_MALLOC(type)
Memory management macros.
Definition util.h:49
LDNS_XMALLOC
#define LDNS_XMALLOC(type, count)
Definition util.h:51
ldns_int_to_hexdigit
char ldns_int_to_hexdigit(int ch)
Returns the char (hex) representation of the given int.
Definition util.c:113