4 * conversion routines from the wire format
5 * to the presentation format (strings)
7 * (c) NLnet Labs, 2004-2006
9 * See the file LICENSE for the license
14 * Contains functions to translate the wireformat to text
15 * representation, as well as functions to print them.
18 #include "sldns/wire2str.h"
19 #include "sldns/str2wire.h"
20 #include "sldns/rrdef.h"
21 #include "sldns/pkthdr.h"
22 #include "sldns/parseutil.h"
23 #include "sldns/sbuffer.h"
24 #include "sldns/keyraw.h"
35 /* lookup tables for standard DNS stuff */
36 /* Taken from RFC 2535, section 7. */
37 static sldns_lookup_table sldns_algorithms_data[] = {
38 { LDNS_RSAMD5, "RSAMD5" },
42 { LDNS_RSASHA1, "RSASHA1" },
43 { LDNS_DSA_NSEC3, "DSA-NSEC3-SHA1" },
44 { LDNS_RSASHA1_NSEC3, "RSASHA1-NSEC3-SHA1" },
45 { LDNS_RSASHA256, "RSASHA256"},
46 { LDNS_RSASHA512, "RSASHA512"},
47 { LDNS_ECC_GOST, "ECC-GOST"},
48 { LDNS_ECDSAP256SHA256, "ECDSAP256SHA256"},
49 { LDNS_ECDSAP384SHA384, "ECDSAP384SHA384"},
50 { LDNS_INDIRECT, "INDIRECT" },
51 { LDNS_PRIVATEDNS, "PRIVATEDNS" },
52 { LDNS_PRIVATEOID, "PRIVATEOID" },
55 sldns_lookup_table* sldns_algorithms = sldns_algorithms_data;
57 /* hash algorithms in DS record */
58 static sldns_lookup_table sldns_hashes_data[] = {
59 { LDNS_SHA1, "SHA1" },
60 { LDNS_SHA256, "SHA256" },
61 { LDNS_HASH_GOST, "HASH-GOST" },
62 { LDNS_SHA384, "SHA384" },
65 sldns_lookup_table* sldns_hashes = sldns_hashes_data;
67 /* Taken from RFC 4398 */
68 static sldns_lookup_table sldns_cert_algorithms_data[] = {
69 { LDNS_CERT_PKIX, "PKIX" },
70 { LDNS_CERT_SPKI, "SPKI" },
71 { LDNS_CERT_PGP, "PGP" },
72 { LDNS_CERT_IPKIX, "IPKIX" },
73 { LDNS_CERT_ISPKI, "ISPKI" },
74 { LDNS_CERT_IPGP, "IPGP" },
75 { LDNS_CERT_ACPKIX, "ACPKIX" },
76 { LDNS_CERT_IACPKIX, "IACPKIX" },
77 { LDNS_CERT_URI, "URI" },
78 { LDNS_CERT_OID, "OID" },
81 sldns_lookup_table* sldns_cert_algorithms = sldns_cert_algorithms_data;
83 /* if these are used elsewhere */
84 static sldns_lookup_table sldns_rcodes_data[] = {
85 { LDNS_RCODE_NOERROR, "NOERROR" },
86 { LDNS_RCODE_FORMERR, "FORMERR" },
87 { LDNS_RCODE_SERVFAIL, "SERVFAIL" },
88 { LDNS_RCODE_NXDOMAIN, "NXDOMAIN" },
89 { LDNS_RCODE_NOTIMPL, "NOTIMPL" },
90 { LDNS_RCODE_REFUSED, "REFUSED" },
91 { LDNS_RCODE_YXDOMAIN, "YXDOMAIN" },
92 { LDNS_RCODE_YXRRSET, "YXRRSET" },
93 { LDNS_RCODE_NXRRSET, "NXRRSET" },
94 { LDNS_RCODE_NOTAUTH, "NOTAUTH" },
95 { LDNS_RCODE_NOTZONE, "NOTZONE" },
98 sldns_lookup_table* sldns_rcodes = sldns_rcodes_data;
100 static sldns_lookup_table sldns_opcodes_data[] = {
101 { LDNS_PACKET_QUERY, "QUERY" },
102 { LDNS_PACKET_IQUERY, "IQUERY" },
103 { LDNS_PACKET_STATUS, "STATUS" },
104 { LDNS_PACKET_NOTIFY, "NOTIFY" },
105 { LDNS_PACKET_UPDATE, "UPDATE" },
108 sldns_lookup_table* sldns_opcodes = sldns_opcodes_data;
110 static sldns_lookup_table sldns_wireparse_errors_data[] = {
111 { LDNS_WIREPARSE_ERR_OK, "no parse error" },
112 { LDNS_WIREPARSE_ERR_GENERAL, "parse error" },
113 { LDNS_WIREPARSE_ERR_DOMAINNAME_OVERFLOW, "Domainname length overflow" },
114 { LDNS_WIREPARSE_ERR_DOMAINNAME_UNDERFLOW, "Domainname length underflow (zero length)" },
115 { LDNS_WIREPARSE_ERR_BUFFER_TOO_SMALL, "buffer too small" },
116 { LDNS_WIREPARSE_ERR_LABEL_OVERFLOW, "Label length overflow" },
117 { LDNS_WIREPARSE_ERR_EMPTY_LABEL, "Empty label" },
118 { LDNS_WIREPARSE_ERR_SYNTAX_BAD_ESCAPE, "Syntax error, bad escape sequence" },
119 { LDNS_WIREPARSE_ERR_SYNTAX, "Syntax error, could not parse the RR" },
120 { LDNS_WIREPARSE_ERR_SYNTAX_TTL, "Syntax error, could not parse the RR's TTL" },
121 { LDNS_WIREPARSE_ERR_SYNTAX_TYPE, "Syntax error, could not parse the RR's type" },
122 { LDNS_WIREPARSE_ERR_SYNTAX_CLASS, "Syntax error, could not parse the RR's class" },
123 { LDNS_WIREPARSE_ERR_SYNTAX_RDATA, "Syntax error, could not parse the RR's rdata" },
124 { LDNS_WIREPARSE_ERR_SYNTAX_MISSING_VALUE, "Syntax error, value expected" },
125 { LDNS_WIREPARSE_ERR_INVALID_STR, "Conversion error, string expected" },
126 { LDNS_WIREPARSE_ERR_SYNTAX_B64, "Conversion error, b64 encoding expected" },
127 { LDNS_WIREPARSE_ERR_SYNTAX_B32_EXT, "Conversion error, b32 ext encoding expected" },
128 { LDNS_WIREPARSE_ERR_SYNTAX_HEX, "Conversion error, hex encoding expected" },
129 { LDNS_WIREPARSE_ERR_CERT_BAD_ALGORITHM, "Bad algorithm type for CERT record" },
130 { LDNS_WIREPARSE_ERR_SYNTAX_TIME, "Conversion error, time encoding expected" },
131 { LDNS_WIREPARSE_ERR_SYNTAX_PERIOD, "Conversion error, time period encoding expected" },
132 { LDNS_WIREPARSE_ERR_SYNTAX_ILNP64, "Conversion error, 4 colon separated hex numbers expected" },
133 { LDNS_WIREPARSE_ERR_SYNTAX_EUI48,
134 "Conversion error, 6 two character hex numbers "
135 "separated by dashes expected (i.e. xx-xx-xx-xx-xx-xx" },
136 { LDNS_WIREPARSE_ERR_SYNTAX_EUI64,
137 "Conversion error, 8 two character hex numbers "
138 "separated by dashes expected (i.e. xx-xx-xx-xx-xx-xx-xx-xx" },
139 { LDNS_WIREPARSE_ERR_SYNTAX_TAG,
140 "Conversion error, a non-zero sequence of US-ASCII letters "
141 "and numbers in lower case expected" },
142 { LDNS_WIREPARSE_ERR_NOT_IMPL, "not implemented" },
143 { LDNS_WIREPARSE_ERR_SYNTAX_INT, "Conversion error, integer expected" },
144 { LDNS_WIREPARSE_ERR_SYNTAX_IP4, "Conversion error, ip4 addr expected" },
145 { LDNS_WIREPARSE_ERR_SYNTAX_IP6, "Conversion error, ip6 addr expected" },
146 { LDNS_WIREPARSE_ERR_SYNTAX_INTEGER_OVERFLOW, "Syntax error, integer overflow" },
147 { LDNS_WIREPARSE_ERR_INCLUDE, "$INCLUDE directive was seen in the zone" },
148 { LDNS_WIREPARSE_ERR_PARENTHESIS, "Parse error, parenthesis mismatch" },
151 sldns_lookup_table* sldns_wireparse_errors = sldns_wireparse_errors_data;
153 static sldns_lookup_table sldns_edns_flags_data[] = {
157 sldns_lookup_table* sldns_edns_flags = sldns_edns_flags_data;
159 static sldns_lookup_table sldns_edns_options_data[] = {
163 /* 4 draft-cheshire-edns0-owner-option */
167 { 8, "edns-client-subnet" },
170 sldns_lookup_table* sldns_edns_options = sldns_edns_options_data;
172 char* sldns_wire2str_pkt(uint8_t* data, size_t len)
174 size_t slen = (size_t)sldns_wire2str_pkt_buf(data, len, NULL, 0);
175 char* result = (char*)malloc(slen+1);
176 if(!result) return NULL;
177 sldns_wire2str_pkt_buf(data, len, result, slen+1);
181 char* sldns_wire2str_rr(uint8_t* rr, size_t len)
183 size_t slen = (size_t)sldns_wire2str_rr_buf(rr, len, NULL, 0);
184 char* result = (char*)malloc(slen+1);
185 if(!result) return NULL;
186 sldns_wire2str_rr_buf(rr, len, result, slen+1);
190 char* sldns_wire2str_type(uint16_t rrtype)
193 sldns_wire2str_type_buf(rrtype, buf, sizeof(buf));
197 char* sldns_wire2str_class(uint16_t rrclass)
200 sldns_wire2str_class_buf(rrclass, buf, sizeof(buf));
204 char* sldns_wire2str_dname(uint8_t* dname, size_t dname_len)
206 size_t slen=(size_t)sldns_wire2str_dname_buf(dname, dname_len, NULL, 0);
207 char* result = (char*)malloc(slen+1);
208 if(!result) return NULL;
209 sldns_wire2str_dname_buf(dname, dname_len, result, slen+1);
213 char* sldns_wire2str_rcode(int rcode)
216 sldns_wire2str_rcode_buf(rcode, buf, sizeof(buf));
220 int sldns_wire2str_pkt_buf(uint8_t* d, size_t dlen, char* s, size_t slen)
222 /* use arguments as temporary variables */
223 return sldns_wire2str_pkt_scan(&d, &dlen, &s, &slen);
226 int sldns_wire2str_rr_buf(uint8_t* d, size_t dlen, char* s, size_t slen)
228 /* use arguments as temporary variables */
229 return sldns_wire2str_rr_scan(&d, &dlen, &s, &slen, NULL, 0);
232 int sldns_wire2str_rdata_buf(uint8_t* rdata, size_t rdata_len, char* str,
233 size_t str_len, uint16_t rrtype)
235 /* use arguments as temporary variables */
236 return sldns_wire2str_rdata_scan(&rdata, &rdata_len, &str, &str_len,
240 int sldns_wire2str_rr_unknown_buf(uint8_t* d, size_t dlen, char* s, size_t slen)
242 /* use arguments as temporary variables */
243 return sldns_wire2str_rr_unknown_scan(&d, &dlen, &s, &slen, NULL, 0);
246 int sldns_wire2str_rr_comment_buf(uint8_t* rr, size_t rrlen, size_t dname_len,
247 char* s, size_t slen)
249 uint16_t rrtype = sldns_wirerr_get_type(rr, rrlen, dname_len);
250 return sldns_wire2str_rr_comment_print(&s, &slen, rr, rrlen, dname_len,
254 int sldns_wire2str_type_buf(uint16_t rrtype, char* s, size_t slen)
256 /* use arguments as temporary variables */
257 return sldns_wire2str_type_print(&s, &slen, rrtype);
260 int sldns_wire2str_class_buf(uint16_t rrclass, char* s, size_t slen)
262 /* use arguments as temporary variables */
263 return sldns_wire2str_class_print(&s, &slen, rrclass);
266 int sldns_wire2str_rcode_buf(int rcode, char* s, size_t slen)
268 /* use arguments as temporary variables */
269 return sldns_wire2str_rcode_print(&s, &slen, rcode);
272 int sldns_wire2str_dname_buf(uint8_t* d, size_t dlen, char* s, size_t slen)
274 /* use arguments as temporary variables */
275 return sldns_wire2str_dname_scan(&d, &dlen, &s, &slen, NULL, 0);
278 int sldns_str_vprint(char** str, size_t* slen, const char* format, va_list args)
280 int w = vsnprintf(*str, *slen, format, args);
282 /* error in printout */
284 } else if((size_t)w >= *slen) {
285 *str = NULL; /* we do not want str to point outside of buffer*/
294 int sldns_str_print(char** str, size_t* slen, const char* format, ...)
298 va_start(args, format);
299 w = sldns_str_vprint(str, slen, format, args);
304 /** print hex format into text buffer for specified length */
305 static int print_hex_buf(char** s, size_t* slen, uint8_t* buf, size_t len)
307 const char* hex = "0123456789ABCDEF";
309 for(i=0; i<len; i++) {
310 (void)sldns_str_print(s, slen, "%c%c", hex[(buf[i]&0xf0)>>4],
316 /** print remainder of buffer in hex format with prefixed text */
317 static int print_remainder_hex(const char* pref, uint8_t** d, size_t* dlen,
318 char** s, size_t* slen)
321 w += sldns_str_print(s, slen, "%s", pref);
322 w += print_hex_buf(s, slen, *d, *dlen);
328 int sldns_wire2str_pkt_scan(uint8_t** d, size_t* dlen, char** s, size_t* slen)
331 unsigned qdcount, ancount, nscount, arcount, i;
333 size_t pktlen = *dlen;
334 if(*dlen >= LDNS_HEADER_SIZE) {
335 qdcount = (unsigned)LDNS_QDCOUNT(*d);
336 ancount = (unsigned)LDNS_ANCOUNT(*d);
337 nscount = (unsigned)LDNS_NSCOUNT(*d);
338 arcount = (unsigned)LDNS_ARCOUNT(*d);
340 qdcount = ancount = nscount = arcount = 0;
342 w += sldns_wire2str_header_scan(d, dlen, s, slen);
343 w += sldns_str_print(s, slen, "\n");
344 w += sldns_str_print(s, slen, ";; QUESTION SECTION:\n");
345 for(i=0; i<qdcount; i++) {
346 w += sldns_wire2str_rrquestion_scan(d, dlen, s, slen,
350 w += sldns_str_print(s, slen, "\n");
351 w += sldns_str_print(s, slen, ";; ANSWER SECTION:\n");
352 for(i=0; i<ancount; i++) {
353 w += sldns_wire2str_rr_scan(d, dlen, s, slen, pkt, pktlen);
356 w += sldns_str_print(s, slen, "\n");
357 w += sldns_str_print(s, slen, ";; AUTHORITY SECTION:\n");
358 for(i=0; i<nscount; i++) {
359 w += sldns_wire2str_rr_scan(d, dlen, s, slen, pkt, pktlen);
362 w += sldns_str_print(s, slen, "\n");
363 w += sldns_str_print(s, slen, ";; ADDITIONAL SECTION:\n");
364 for(i=0; i<arcount; i++) {
365 w += sldns_wire2str_rr_scan(d, dlen, s, slen, pkt, pktlen);
368 /* other fields: WHEN(time), SERVER(IP) not available here. */
369 w += sldns_str_print(s, slen, ";; MSG SIZE rcvd: %d\n", (int)pktlen);
371 w += print_remainder_hex(";; trailing garbage 0x",
373 w += sldns_str_print(s, slen, "\n");
378 /** scan type, class and ttl and printout, for rr */
379 static int sldns_rr_tcttl_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
386 return w + print_remainder_hex("; Error malformed 0x",
388 /* these print values or 0x.. if none left */
389 t = sldns_read_uint16(*d);
390 c = sldns_read_uint16((*d)+2);
393 w += sldns_wire2str_class_print(s, sl, c);
394 w += sldns_str_print(s, sl, "\t");
395 w += sldns_wire2str_type_print(s, sl, t);
397 return w + sldns_str_print(s, sl, "; Error no ttl");
398 return w + print_remainder_hex(
399 "; Error malformed ttl 0x", d, dl, s, sl);
401 t = sldns_read_uint16(*d);
402 c = sldns_read_uint16((*d)+2);
403 ttl = sldns_read_uint32((*d)+4);
406 w += sldns_str_print(s, sl, "%lu\t", (unsigned long)ttl);
407 w += sldns_wire2str_class_print(s, sl, c);
408 w += sldns_str_print(s, sl, "\t");
409 w += sldns_wire2str_type_print(s, sl, t);
413 int sldns_wire2str_rr_scan(uint8_t** d, size_t* dlen, char** s, size_t* slen,
414 uint8_t* pkt, size_t pktlen)
418 size_t rrlen = *dlen, dname_off, rdlen, ordlen;
421 if(*dlen >= 3 && (*d)[0]==0 &&
422 sldns_read_uint16((*d)+1)==LDNS_RR_TYPE_OPT) {
423 /* perform EDNS OPT processing */
424 return sldns_wire2str_edns_scan(d, dlen, s, slen, pkt, pktlen);
427 /* try to scan the rdata with pretty-printing, but if that fails, then
428 * scan the rdata as an unknown RR type */
429 w += sldns_wire2str_dname_scan(d, dlen, s, slen, pkt, pktlen);
430 w += sldns_str_print(s, slen, "\t");
431 dname_off = rrlen-(*dlen);
433 /* like a question-RR */
434 uint16_t t = sldns_read_uint16(*d);
435 uint16_t c = sldns_read_uint16((*d)+2);
438 w += sldns_wire2str_class_print(s, slen, c);
439 w += sldns_str_print(s, slen, "\t");
440 w += sldns_wire2str_type_print(s, slen, t);
441 w += sldns_str_print(s, slen, " ; Error no ttl,rdata\n");
446 return w + sldns_str_print(s, slen, ";Error missing RR\n");
447 w += print_remainder_hex(";Error partial RR 0x", d, dlen, s, slen);
448 return w + sldns_str_print(s, slen, "\n");
450 rrtype = sldns_read_uint16(*d);
451 w += sldns_rr_tcttl_scan(d, dlen, s, slen);
452 w += sldns_str_print(s, slen, "\t");
457 return w + sldns_str_print(s, slen, ";Error missing rdatalen\n");
458 w += print_remainder_hex(";Error missing rdatalen 0x",
460 return w + sldns_str_print(s, slen, "\n");
462 rdlen = sldns_read_uint16(*d);
467 w += sldns_str_print(s, slen, "\\# %u ", (unsigned)rdlen);
469 return w + sldns_str_print(s, slen, ";Error missing rdata\n");
470 w += print_remainder_hex(";Error partial rdata 0x", d, dlen, s, slen);
471 return w + sldns_str_print(s, slen, "\n");
473 w += sldns_wire2str_rdata_scan(d, &rdlen, s, slen, rrtype, pkt, pktlen);
474 (*dlen) -= (ordlen-rdlen);
476 /* default comment */
477 w += sldns_wire2str_rr_comment_print(s, slen, rr, rrlen, dname_off,
479 w += sldns_str_print(s, slen, "\n");
483 int sldns_wire2str_rrquestion_scan(uint8_t** d, size_t* dlen, char** s,
484 size_t* slen, uint8_t* pkt, size_t pktlen)
488 w += sldns_wire2str_dname_scan(d, dlen, s, slen, pkt, pktlen);
489 w += sldns_str_print(s, slen, "\t");
492 return w + sldns_str_print(s, slen, "Error malformed\n");
493 w += print_remainder_hex("Error malformed 0x", d, dlen, s, slen);
494 return w + sldns_str_print(s, slen, "\n");
496 t = sldns_read_uint16(*d);
497 c = sldns_read_uint16((*d)+2);
500 w += sldns_wire2str_class_print(s, slen, c);
501 w += sldns_str_print(s, slen, "\t");
502 w += sldns_wire2str_type_print(s, slen, t);
503 w += sldns_str_print(s, slen, "\n");
507 int sldns_wire2str_rr_unknown_scan(uint8_t** d, size_t* dlen, char** s,
508 size_t* slen, uint8_t* pkt, size_t pktlen)
510 size_t rdlen, ordlen;
512 w += sldns_wire2str_dname_scan(d, dlen, s, slen, pkt, pktlen);
513 w += sldns_str_print(s, slen, "\t");
514 w += sldns_rr_tcttl_scan(d, dlen, s, slen);
515 w += sldns_str_print(s, slen, "\t");
518 return w + sldns_str_print(s, slen, ";Error missing rdatalen\n");
519 w += print_remainder_hex(";Error missing rdatalen 0x",
521 return w + sldns_str_print(s, slen, "\n");
523 rdlen = sldns_read_uint16(*d);
528 w += sldns_str_print(s, slen, "\\# %u ", (unsigned)rdlen);
530 return w + sldns_str_print(s, slen, ";Error missing rdata\n");
531 w += print_remainder_hex(";Error partial rdata 0x", d, dlen, s, slen);
532 return w + sldns_str_print(s, slen, "\n");
534 w += sldns_wire2str_rdata_unknown_scan(d, &rdlen, s, slen);
535 (*dlen) -= (ordlen-rdlen);
536 w += sldns_str_print(s, slen, "\n");
540 /** print rr comment for type DNSKEY */
541 static int rr_comment_dnskey(char** s, size_t* slen, uint8_t* rr,
542 size_t rrlen, size_t dname_off)
547 if(rrlen < dname_off + 10) return 0;
548 rdlen = sldns_read_uint16(rr+dname_off+8);
549 if(rrlen < dname_off + 10 + rdlen) return 0;
550 rdata = rr + dname_off + 10;
551 flags = (int)sldns_read_uint16(rdata);
552 w += sldns_str_print(s, slen, " ;{");
555 w += sldns_str_print(s, slen, "id = %u",
556 sldns_calc_keytag_raw(rdata, rdlen));
559 if((flags&LDNS_KEY_ZONE_KEY)) {
560 if((flags&LDNS_KEY_SEP_KEY))
561 w += sldns_str_print(s, slen, " (ksk)");
562 else w += sldns_str_print(s, slen, " (zsk)");
567 w += sldns_str_print(s, slen, ", ");
568 w += sldns_str_print(s, slen, "size = %db",
569 (int)sldns_rr_dnskey_key_size_raw(
570 (unsigned char*)rdata+4, rdlen-4, (int)(rdata[3])));
573 w += sldns_str_print(s, slen, "}");
577 /** print rr comment for type RRSIG */
578 static int rr_comment_rrsig(char** s, size_t* slen, uint8_t* rr,
579 size_t rrlen, size_t dname_off)
583 if(rrlen < dname_off + 10) return 0;
584 rdlen = sldns_read_uint16(rr+dname_off+8);
585 if(rrlen < dname_off + 10 + rdlen) return 0;
586 rdata = rr + dname_off + 10;
587 if(rdlen < 18) return 0;
588 return sldns_str_print(s, slen, " ;{id = %d}",
589 (int)sldns_read_uint16(rdata+16));
592 /** print rr comment for type NSEC3 */
593 static int rr_comment_nsec3(char** s, size_t* slen, uint8_t* rr,
594 size_t rrlen, size_t dname_off)
599 if(rrlen < dname_off + 10) return 0;
600 rdlen = sldns_read_uint16(rr+dname_off+8);
601 if(rrlen < dname_off + 10 + rdlen) return 0;
602 rdata = rr + dname_off + 10;
603 if(rdlen < 2) return 0;
604 if((rdata[1] & LDNS_NSEC3_VARS_OPTOUT_MASK))
605 w += sldns_str_print(s, slen, " ;{flags: optout}");
609 int sldns_wire2str_rr_comment_print(char** s, size_t* slen, uint8_t* rr,
610 size_t rrlen, size_t dname_off, uint16_t rrtype)
612 if(rrtype == LDNS_RR_TYPE_DNSKEY) {
613 return rr_comment_dnskey(s, slen, rr, rrlen, dname_off);
614 } else if(rrtype == LDNS_RR_TYPE_RRSIG) {
615 return rr_comment_rrsig(s, slen, rr, rrlen, dname_off);
616 } else if(rrtype == LDNS_RR_TYPE_NSEC3) {
617 return rr_comment_nsec3(s, slen, rr, rrlen, dname_off);
622 int sldns_wire2str_header_scan(uint8_t** d, size_t* dlen, char** s,
627 w += sldns_str_print(s, slen, ";; ->>HEADER<<- ");
629 return w+sldns_str_print(s, slen, "Error empty packet");
631 return w+print_remainder_hex("Error header too short 0x", d, dlen, s, slen);
632 opcode = (int)LDNS_OPCODE_WIRE(*d);
633 rcode = (int)LDNS_RCODE_WIRE(*d);
634 w += sldns_str_print(s, slen, "opcode: ");
635 w += sldns_wire2str_opcode_print(s, slen, opcode);
636 w += sldns_str_print(s, slen, ", ");
637 w += sldns_str_print(s, slen, "rcode: ");
638 w += sldns_wire2str_rcode_print(s, slen, rcode);
639 w += sldns_str_print(s, slen, ", ");
640 w += sldns_str_print(s, slen, "id: %d\n", (int)LDNS_ID_WIRE(*d));
641 w += sldns_str_print(s, slen, ";; flags:");
642 if(LDNS_QR_WIRE(*d)) w += sldns_str_print(s, slen, " qr");
643 if(LDNS_AA_WIRE(*d)) w += sldns_str_print(s, slen, " aa");
644 if(LDNS_TC_WIRE(*d)) w += sldns_str_print(s, slen, " tc");
645 if(LDNS_RD_WIRE(*d)) w += sldns_str_print(s, slen, " rd");
646 if(LDNS_CD_WIRE(*d)) w += sldns_str_print(s, slen, " cd");
647 if(LDNS_RA_WIRE(*d)) w += sldns_str_print(s, slen, " ra");
648 if(LDNS_AD_WIRE(*d)) w += sldns_str_print(s, slen, " ad");
649 if(LDNS_Z_WIRE(*d)) w += sldns_str_print(s, slen, " z");
650 w += sldns_str_print(s, slen, " ; ");
651 if(*dlen < LDNS_HEADER_SIZE)
652 return w+print_remainder_hex("Error header too short 0x", d, dlen, s, slen);
653 w += sldns_str_print(s, slen, "QUERY: %d, ", (int)LDNS_QDCOUNT(*d));
654 w += sldns_str_print(s, slen, "ANSWER: %d, ", (int)LDNS_ANCOUNT(*d));
655 w += sldns_str_print(s, slen, "AUTHORITY: %d, ", (int)LDNS_NSCOUNT(*d));
656 w += sldns_str_print(s, slen, "ADDITIONAL: %d ", (int)LDNS_ARCOUNT(*d));
657 *d += LDNS_HEADER_SIZE;
658 *dlen -= LDNS_HEADER_SIZE;
662 int sldns_wire2str_rdata_scan(uint8_t** d, size_t* dlen, char** s,
663 size_t* slen, uint16_t rrtype, uint8_t* pkt, size_t pktlen)
665 /* try to prettyprint, but if that fails, use unknown format */
668 size_t origdlen = *dlen, origslen = *slen;
669 uint16_t r_cnt, r_max;
670 sldns_rdf_type rdftype;
673 const sldns_rr_descriptor *desc = sldns_rr_descript(rrtype);
674 if(!desc) /* unknown format */
675 return sldns_wire2str_rdata_unknown_scan(d, dlen, s, slen);
676 /* dlen equals the rdatalen for the rdata */
678 r_max = sldns_rr_descriptor_maximum(desc);
679 for(r_cnt=0; r_cnt < r_max; r_cnt++) {
681 if(r_cnt < sldns_rr_descriptor_minimum(desc))
683 break; /* nothing more to print */
685 rdftype = sldns_rr_descriptor_field_type(desc, r_cnt);
687 w += sldns_str_print(s, slen, " ");
688 n = sldns_wire2str_rdf_scan(d, dlen, s, slen, rdftype,
692 /* failed, use unknown format */
693 *d = origd; *s = origs;
694 *dlen = origdlen; *slen = origslen;
695 return sldns_wire2str_rdata_unknown_scan(d, dlen,
706 int sldns_wire2str_rdata_unknown_scan(uint8_t** d, size_t* dlen, char** s,
712 w += sldns_str_print(s, slen, "\\# %u", (unsigned)*dlen);
714 /* print rdlen in hex */
716 w += sldns_str_print(s, slen, " ");
717 w += print_hex_buf(s, slen, *d, *dlen);
723 /** print and escape one character for a domain dname */
724 static int dname_char_print(char** s, size_t* slen, uint8_t c)
726 if(c == '.' || c == ';' || c == '(' || c == ')' || c == '\\')
727 return sldns_str_print(s, slen, "\\%c", c);
728 else if(!(isascii((unsigned char)c) && isgraph((unsigned char)c)))
729 return sldns_str_print(s, slen, "\\%03u", (unsigned)c);
739 int sldns_wire2str_dname_scan(uint8_t** d, size_t* dlen, char** s, size_t* slen,
740 uint8_t* pkt, size_t pktlen)
743 /* spool labels onto the string, use compression if its there */
745 unsigned i, counter=0;
746 const unsigned maxcompr = 1000; /* loop detection, max compr ptrs */
748 if(*dlen == 0) return sldns_str_print(s, slen, "ErrorMissingDname");
752 return sldns_str_print(s, slen, ".");
755 /* read label length */
756 uint8_t labellen = *pos++;
757 if(in_buf) { (*d)++; (*dlen)--; }
759 /* find out what sort of label we have */
760 if((labellen&0xc0) == 0xc0) {
763 if(in_buf && *dlen == 0)
764 return w + sldns_str_print(s, slen,
765 "ErrorPartialDname");
766 else if(!in_buf && pos+1 > pkt+pktlen)
767 return w + sldns_str_print(s, slen,
768 "ErrorPartialDname");
769 target = ((labellen&0x3f)<<8) | *pos;
770 if(in_buf) { (*d)++; (*dlen)--; }
771 /* move to target, if possible */
772 if(!pkt || target >= pktlen)
773 return w + sldns_str_print(s, slen,
774 "ErrorComprPtrOutOfBounds");
775 if(counter++ > maxcompr)
776 return w + sldns_str_print(s, slen,
777 "ErrorComprPtrLooped");
781 } else if((labellen&0xc0)) {
782 /* notimpl label type */
783 w += sldns_str_print(s, slen,
784 "ErrorLABELTYPE%xIsUnknown",
785 (int)(labellen&0xc0));
789 /* spool label characters, end with '.' */
790 if(in_buf && *dlen < labellen) labellen = *dlen;
791 else if(!in_buf && pos+labellen > pkt+pktlen)
792 labellen = (uint8_t)(pkt + pktlen - pos);
793 for(i=0; i<(unsigned)labellen; i++) {
794 w += dname_char_print(s, slen, *pos++);
799 if(*dlen == 0) break;
801 w += sldns_str_print(s, slen, ".");
803 /* skip over final root label */
804 if(in_buf && *dlen > 0) { (*d)++; (*dlen)--; }
805 /* in case we printed no labels, terminate dname */
806 if(w == 0) w += sldns_str_print(s, slen, ".");
810 int sldns_wire2str_opcode_print(char** s, size_t* slen, int opcode)
812 sldns_lookup_table *lt = sldns_lookup_by_id(sldns_opcodes, opcode);
813 if (lt && lt->name) {
814 return sldns_str_print(s, slen, "%s", lt->name);
816 return sldns_str_print(s, slen, "OPCODE%u", (unsigned)opcode);
819 int sldns_wire2str_rcode_print(char** s, size_t* slen, int rcode)
821 sldns_lookup_table *lt = sldns_lookup_by_id(sldns_rcodes, rcode);
822 if (lt && lt->name) {
823 return sldns_str_print(s, slen, "%s", lt->name);
825 return sldns_str_print(s, slen, "RCODE%u", (unsigned)rcode);
828 int sldns_wire2str_class_print(char** s, size_t* slen, uint16_t rrclass)
830 sldns_lookup_table *lt = sldns_lookup_by_id(sldns_rr_classes,
832 if (lt && lt->name) {
833 return sldns_str_print(s, slen, "%s", lt->name);
835 return sldns_str_print(s, slen, "CLASS%u", (unsigned)rrclass);
838 int sldns_wire2str_type_print(char** s, size_t* slen, uint16_t rrtype)
840 const sldns_rr_descriptor *descriptor = sldns_rr_descript(rrtype);
841 if (descriptor && descriptor->_name) {
842 return sldns_str_print(s, slen, "%s", descriptor->_name);
844 return sldns_str_print(s, slen, "TYPE%u", (unsigned)rrtype);
847 int sldns_wire2str_edns_option_code_print(char** s, size_t* slen,
850 sldns_lookup_table *lt = sldns_lookup_by_id(sldns_edns_options,
852 if (lt && lt->name) {
853 return sldns_str_print(s, slen, "%s", lt->name);
855 return sldns_str_print(s, slen, "OPT%u", (unsigned)opcode);
858 int sldns_wire2str_class_scan(uint8_t** d, size_t* dlen, char** s, size_t* slen)
861 if(*dlen == 0) return 0;
862 if(*dlen < 2) return print_remainder_hex("Error malformed 0x", d, dlen, s, slen);
863 c = sldns_read_uint16(*d);
866 return sldns_wire2str_class_print(s, slen, c);
869 int sldns_wire2str_type_scan(uint8_t** d, size_t* dlen, char** s, size_t* slen)
872 if(*dlen == 0) return 0;
873 if(*dlen < 2) return print_remainder_hex("Error malformed 0x", d, dlen, s, slen);
874 t = sldns_read_uint16(*d);
877 return sldns_wire2str_type_print(s, slen, t);
880 int sldns_wire2str_ttl_scan(uint8_t** d, size_t* dlen, char** s, size_t* slen)
883 if(*dlen == 0) return 0;
884 if(*dlen < 4) return print_remainder_hex("Error malformed 0x", d, dlen, s, slen);
885 ttl = sldns_read_uint32(*d);
888 return sldns_str_print(s, slen, "%u", (unsigned)ttl);
891 int sldns_wire2str_rdf_scan(uint8_t** d, size_t* dlen, char** s, size_t* slen,
892 int rdftype, uint8_t* pkt, size_t pktlen)
894 if(*dlen == 0) return 0;
896 case LDNS_RDF_TYPE_NONE:
898 case LDNS_RDF_TYPE_DNAME:
899 return sldns_wire2str_dname_scan(d, dlen, s, slen, pkt, pktlen);
900 case LDNS_RDF_TYPE_INT8:
901 return sldns_wire2str_int8_scan(d, dlen, s, slen);
902 case LDNS_RDF_TYPE_INT16:
903 return sldns_wire2str_int16_scan(d, dlen, s, slen);
904 case LDNS_RDF_TYPE_INT32:
905 return sldns_wire2str_int32_scan(d, dlen, s, slen);
906 case LDNS_RDF_TYPE_PERIOD:
907 return sldns_wire2str_period_scan(d, dlen, s, slen);
908 case LDNS_RDF_TYPE_TSIGTIME:
909 return sldns_wire2str_tsigtime_scan(d, dlen, s, slen);
910 case LDNS_RDF_TYPE_A:
911 return sldns_wire2str_a_scan(d, dlen, s, slen);
912 case LDNS_RDF_TYPE_AAAA:
913 return sldns_wire2str_aaaa_scan(d, dlen, s, slen);
914 case LDNS_RDF_TYPE_STR:
915 return sldns_wire2str_str_scan(d, dlen, s, slen);
916 case LDNS_RDF_TYPE_APL:
917 return sldns_wire2str_apl_scan(d, dlen, s, slen);
918 case LDNS_RDF_TYPE_B32_EXT:
919 return sldns_wire2str_b32_ext_scan(d, dlen, s, slen);
920 case LDNS_RDF_TYPE_B64:
921 return sldns_wire2str_b64_scan(d, dlen, s, slen);
922 case LDNS_RDF_TYPE_HEX:
923 return sldns_wire2str_hex_scan(d, dlen, s, slen);
924 case LDNS_RDF_TYPE_NSEC:
925 return sldns_wire2str_nsec_scan(d, dlen, s, slen);
926 case LDNS_RDF_TYPE_NSEC3_SALT:
927 return sldns_wire2str_nsec3_salt_scan(d, dlen, s, slen);
928 case LDNS_RDF_TYPE_TYPE:
929 return sldns_wire2str_type_scan(d, dlen, s, slen);
930 case LDNS_RDF_TYPE_CLASS:
931 return sldns_wire2str_class_scan(d, dlen, s, slen);
932 case LDNS_RDF_TYPE_CERT_ALG:
933 return sldns_wire2str_cert_alg_scan(d, dlen, s, slen);
934 case LDNS_RDF_TYPE_ALG:
935 return sldns_wire2str_alg_scan(d, dlen, s, slen);
936 case LDNS_RDF_TYPE_UNKNOWN:
937 return sldns_wire2str_unknown_scan(d, dlen, s, slen);
938 case LDNS_RDF_TYPE_TIME:
939 return sldns_wire2str_time_scan(d, dlen, s, slen);
940 case LDNS_RDF_TYPE_LOC:
941 return sldns_wire2str_loc_scan(d, dlen, s, slen);
942 case LDNS_RDF_TYPE_WKS:
943 case LDNS_RDF_TYPE_SERVICE:
944 return sldns_wire2str_wks_scan(d, dlen, s, slen);
945 case LDNS_RDF_TYPE_NSAP:
946 return sldns_wire2str_nsap_scan(d, dlen, s, slen);
947 case LDNS_RDF_TYPE_ATMA:
948 return sldns_wire2str_atma_scan(d, dlen, s, slen);
949 case LDNS_RDF_TYPE_IPSECKEY:
950 return sldns_wire2str_ipseckey_scan(d, dlen, s, slen, pkt,
952 case LDNS_RDF_TYPE_HIP:
953 return sldns_wire2str_hip_scan(d, dlen, s, slen);
954 case LDNS_RDF_TYPE_INT16_DATA:
955 return sldns_wire2str_int16_data_scan(d, dlen, s, slen);
956 case LDNS_RDF_TYPE_NSEC3_NEXT_OWNER:
957 return sldns_wire2str_b32_ext_scan(d, dlen, s, slen);
958 case LDNS_RDF_TYPE_ILNP64:
959 return sldns_wire2str_ilnp64_scan(d, dlen, s, slen);
960 case LDNS_RDF_TYPE_EUI48:
961 return sldns_wire2str_eui48_scan(d, dlen, s, slen);
962 case LDNS_RDF_TYPE_EUI64:
963 return sldns_wire2str_eui64_scan(d, dlen, s, slen);
964 case LDNS_RDF_TYPE_TAG:
965 return sldns_wire2str_tag_scan(d, dlen, s, slen);
966 case LDNS_RDF_TYPE_LONG_STR:
967 return sldns_wire2str_long_str_scan(d, dlen, s, slen);
969 /* unknown rdf type */
973 int sldns_wire2str_int8_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
976 if(*dl < 1) return -1;
977 w = sldns_str_print(s, sl, "%u", (unsigned)**d);
983 int sldns_wire2str_int16_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
986 if(*dl < 2) return -1;
987 w = sldns_str_print(s, sl, "%lu", (unsigned long)sldns_read_uint16(*d));
993 int sldns_wire2str_int32_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
996 if(*dl < 4) return -1;
997 w = sldns_str_print(s, sl, "%lu", (unsigned long)sldns_read_uint32(*d));
1003 int sldns_wire2str_period_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1006 if(*dl < 4) return -1;
1007 w = sldns_str_print(s, sl, "%u", (unsigned)sldns_read_uint32(*d));
1013 int sldns_wire2str_tsigtime_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1015 /* tsigtime is 48 bits network order unsigned integer */
1017 uint64_t tsigtime = 0;
1018 uint64_t d0, d1, d2, d3, d4, d5;
1019 if(*dl < 6) return -1;
1020 d0 = (*d)[0]; /* cast to uint64 for shift operations */
1026 tsigtime = (d0<<40) | (d1<<32) | (d2<<24) | (d3<<16) | (d4<<8) | d5;
1028 w = sldns_str_print(s, sl, "%llu", (long long)tsigtime);
1030 w = sldns_str_print(s, sl, "%I64u", (long long)tsigtime);
1037 int sldns_wire2str_a_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1041 if(*dl < 4) return -1;
1042 if(!inet_ntop(AF_INET, *d, buf, (socklen_t)sizeof(buf)))
1044 w = sldns_str_print(s, sl, "%s", buf);
1050 int sldns_wire2str_aaaa_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1055 if(*dl < 16) return -1;
1056 if(!inet_ntop(AF_INET6, *d, buf, (socklen_t)sizeof(buf)))
1058 w = sldns_str_print(s, sl, "%s", buf);
1067 /** printout escaped TYPE_STR character */
1068 static int str_char_print(char** s, size_t* sl, uint8_t c)
1070 if(isprint((unsigned char)c) || c == '\t') {
1071 if(c == '\"' || c == '\\')
1072 return sldns_str_print(s, sl, "\\%c", c);
1080 return sldns_str_print(s, sl, "\\%03u", (unsigned)c);
1083 int sldns_wire2str_str_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1087 if(*dl < 1) return -1;
1089 if(*dl < 1+len) return -1;
1092 w += sldns_str_print(s, sl, "\"");
1093 for(i=0; i<len; i++)
1094 w += str_char_print(s, sl, (*d)[i]);
1095 w += sldns_str_print(s, sl, "\"");
1101 int sldns_wire2str_apl_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1105 uint8_t negation, prefix, adflength;
1106 if(*dl < 4) return -1;
1107 family = sldns_read_uint16(*d);
1109 negation = ((*d)[3] & LDNS_APL_NEGATION);
1110 adflength = ((*d)[3] & LDNS_APL_MASK);
1111 if(*dl < 4+(size_t)adflength) return -1;
1112 if(family != LDNS_APL_IP4 && family != LDNS_APL_IP6)
1113 return -1; /* unknown address family */
1115 w += sldns_str_print(s, sl, "!");
1116 w += sldns_str_print(s, sl, "%u:", (unsigned)family);
1117 if(family == LDNS_APL_IP4) {
1118 /* check if prefix <32 ? */
1119 /* address is variable length 0 - 4 */
1120 for(i=0; i<4; i++) {
1122 w += sldns_str_print(s, sl, ".");
1123 if(i < (int)adflength)
1124 w += sldns_str_print(s, sl, "%d", (*d)[4+i]);
1125 else w += sldns_str_print(s, sl, "0");
1127 } else if(family == LDNS_APL_IP6) {
1128 /* check if prefix <128 ? */
1129 /* address is variable length 0 - 16 */
1130 for(i=0; i<16; i++) {
1132 w += sldns_str_print(s, sl, ":");
1133 if(i < (int)adflength)
1134 w += sldns_str_print(s, sl, "%02x", (*d)[4+i]);
1135 else w += sldns_str_print(s, sl, "00");
1138 w += sldns_str_print(s, sl, "/%u", (unsigned)prefix);
1139 (*d) += 4+adflength;
1140 (*dl) -= 4+adflength;
1144 int sldns_wire2str_b32_ext_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1148 if(*dl < 1) return -1;
1150 if(*dl < 1+datalen) return -1;
1151 sz = sldns_b32_ntop_calculate_size(datalen);
1154 (*dl) -= (datalen+1);
1155 return (int)sz; /* out of space really, but would need buffer
1156 in order to truncate the output */
1158 sldns_b32_ntop_extended_hex((*d)+1, datalen, *s, *sl);
1160 (*dl) -= (datalen+1);
1166 /** scan number of bytes from wire into b64 presentation format */
1167 static int sldns_wire2str_b64_scan_num(uint8_t** d, size_t* dl, char** s,
1168 size_t* sl, size_t num)
1170 /* b64_ntop_calculate size includes null at the end */
1171 size_t sz = sldns_b64_ntop_calculate_size(num)-1;
1175 return (int)sz; /* out of space really, but would need buffer
1176 in order to truncate the output */
1178 sldns_b64_ntop(*d, num, *s, *sl);
1186 int sldns_wire2str_b64_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1188 return sldns_wire2str_b64_scan_num(d, dl, s, sl, *dl);
1191 int sldns_wire2str_hex_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1193 return print_remainder_hex("", d, dl, s, sl);
1196 int sldns_wire2str_nsec_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1200 unsigned i, bit, window, block_len;
1204 /* check for errors */
1206 if(pl < 2) return -1;
1207 block_len = (unsigned)p[1];
1208 if(pl < 2+block_len) return -1;
1217 if(pl < 2) return -1; /* cannot happen */
1218 window = (unsigned)p[0];
1219 block_len = (unsigned)p[1];
1220 if(pl < 2+block_len) return -1; /* cannot happen */
1222 for(i=0; i<block_len; i++) {
1223 if(p[i] == 0) continue;
1224 /* base type number for this octet */
1225 t = ((window)<<8) | (i << 3);
1226 for(bit=0; bit<8; bit++) {
1227 if((p[i]&(0x80>>bit))) {
1228 if(w) w += sldns_str_print(s, sl, " ");
1229 w += sldns_wire2str_type_print(s, sl,
1242 int sldns_wire2str_nsec3_salt_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1246 if(*dl < 1) return -1;
1247 salt_len = (size_t)(*d)[0];
1248 if(*dl < 1+salt_len) return -1;
1252 return sldns_str_print(s, sl, "-");
1254 w = print_hex_buf(s, sl, *d, salt_len);
1260 int sldns_wire2str_cert_alg_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1262 sldns_lookup_table *lt;
1264 if(*dl < 2) return -1;
1265 data = (int)sldns_read_uint16(*d);
1266 lt = sldns_lookup_by_id(sldns_cert_algorithms, data);
1268 w = sldns_str_print(s, sl, "%s", lt->name);
1269 else w = sldns_str_print(s, sl, "%d", data);
1275 int sldns_wire2str_alg_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1277 /* don't use algorithm mnemonics in the presentation format
1278 * this kind of got sneaked into the rfc's */
1279 return sldns_wire2str_int8_scan(d, dl, s, sl);
1282 int sldns_wire2str_unknown_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1284 return sldns_wire2str_rdata_unknown_scan(d, dl, s, sl);
1287 int sldns_wire2str_time_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1289 /* create a YYYYMMDDHHMMSS string if possible */
1293 memset(&tm, 0, sizeof(tm));
1294 if(*dl < 4) return -1;
1295 t = sldns_read_uint32(*d);
1297 if(sldns_serial_arithmitics_gmtime_r(t, time(NULL), &tm) &&
1298 strftime(date_buf, 15, "%Y%m%d%H%M%S", &tm)) {
1301 return sldns_str_print(s, sl, "%s", date_buf);
1307 loc_cm_print(char** str, size_t* sl, uint8_t mantissa, uint8_t exponent)
1311 /* is it 0.<two digits> ? */
1315 return sldns_str_print(str, sl, "0.%02ld", (long)mantissa);
1317 /* always <digit><string of zeros> */
1318 w += sldns_str_print(str, sl, "%d", (int)mantissa);
1319 for(i=0; i<exponent-2; i++)
1320 w += sldns_str_print(str, sl, "0");
1324 int sldns_wire2str_loc_scan(uint8_t** d, size_t* dl, char** str, size_t* sl)
1326 /* we could do checking (ie degrees < 90 etc)? */
1329 uint8_t horizontal_precision;
1330 uint8_t vertical_precision;
1339 uint32_t equator = (uint32_t)1 << 31; /* 2**31 */
1342 if(*dl < 16) return -1;
1345 return sldns_wire2str_hex_scan(d, dl, str, sl);
1347 horizontal_precision = (*d)[2];
1348 vertical_precision = (*d)[3];
1350 latitude = sldns_read_uint32((*d)+4);
1351 longitude = sldns_read_uint32((*d)+8);
1352 altitude = sldns_read_uint32((*d)+12);
1354 if (latitude > equator) {
1356 latitude = latitude - equator;
1359 latitude = equator - latitude;
1361 h = latitude / (1000 * 60 * 60);
1362 latitude = latitude % (1000 * 60 * 60);
1363 m = latitude / (1000 * 60);
1364 latitude = latitude % (1000 * 60);
1365 s = (double) latitude / 1000.0;
1366 w += sldns_str_print(str, sl, "%02u %02u %06.3f %c ",
1367 h, m, s, northerness);
1369 if (longitude > equator) {
1371 longitude = longitude - equator;
1374 longitude = equator - longitude;
1376 h = longitude / (1000 * 60 * 60);
1377 longitude = longitude % (1000 * 60 * 60);
1378 m = longitude / (1000 * 60);
1379 longitude = longitude % (1000 * 60);
1380 s = (double) longitude / (1000.0);
1381 w += sldns_str_print(str, sl, "%02u %02u %06.3f %c ",
1382 h, m, s, easterness);
1384 s = ((double) altitude) / 100;
1387 if(altitude%100 != 0)
1388 w += sldns_str_print(str, sl, "%.2f", s);
1390 w += sldns_str_print(str, sl, "%.0f", s);
1392 w += sldns_str_print(str, sl, "m ");
1394 w += loc_cm_print(str, sl, (size & 0xf0) >> 4, size & 0x0f);
1395 w += sldns_str_print(str, sl, "m ");
1397 w += loc_cm_print(str, sl, (horizontal_precision & 0xf0) >> 4,
1398 horizontal_precision & 0x0f);
1399 w += sldns_str_print(str, sl, "m ");
1401 w += loc_cm_print(str, sl, (vertical_precision & 0xf0) >> 4,
1402 vertical_precision & 0x0f);
1403 w += sldns_str_print(str, sl, "m");
1410 int sldns_wire2str_wks_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1412 /* protocol, followed by bitmap of services */
1413 const char* proto_name = NULL;
1414 struct protoent *protocol;
1415 struct servent *service;
1416 uint8_t protocol_nr;
1417 int bit, port, w = 0;
1419 /* we cannot print with strings because they
1420 * are not portable, the presentation format may
1421 * not be able to be read in on another computer. */
1422 int print_symbols = 0;
1425 if(*dl < 1) return -1;
1426 protocol_nr = (*d)[0];
1429 protocol = getprotobynumber((int)protocol_nr);
1430 if(protocol && (protocol->p_name != NULL)) {
1431 w += sldns_str_print(s, sl, "%s", protocol->p_name);
1432 proto_name = protocol->p_name;
1434 w += sldns_str_print(s, sl, "%u", (unsigned)protocol_nr);
1437 for(i=0; i<*dl; i++) {
1440 for(bit=0; bit<8; bit++) {
1441 if(!(((*d)[i])&(0x80>>bit)))
1443 port = (int)i*8 + bit;
1448 service = getservbyport(
1449 (int)htons((uint16_t)port), proto_name);
1450 if(service && service->s_name)
1451 w += sldns_str_print(s, sl, " %s",
1453 else w += sldns_str_print(s, sl, " %u",
1458 #ifdef HAVE_ENDSERVENT
1461 #ifdef HAVE_ENDPROTOENT
1469 int sldns_wire2str_nsap_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1471 return print_remainder_hex("0x", d, dl, s, sl);
1474 int sldns_wire2str_atma_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1476 return print_remainder_hex("", d, dl, s, sl);
1479 /* internal scan routine that can modify arguments on failure */
1480 static int sldns_wire2str_ipseckey_scan_internal(uint8_t** d, size_t* dl,
1481 char** s, size_t* sl, uint8_t* pkt, size_t pktlen)
1483 /* http://www.ietf.org/internet-drafts/draft-ietf-ipseckey-rr-12.txt*/
1484 uint8_t precedence, gateway_type, algorithm;
1487 if(*dl < 3) return -1;
1488 precedence = (*d)[0];
1489 gateway_type = (*d)[1];
1490 algorithm = (*d)[2];
1491 if(gateway_type > 3)
1492 return -1; /* unknown */
1495 w += sldns_str_print(s, sl, "%d %d %d ",
1496 (int)precedence, (int)gateway_type, (int)algorithm);
1498 switch(gateway_type) {
1499 case 0: /* no gateway */
1500 w += sldns_str_print(s, sl, ".");
1503 w += sldns_wire2str_a_scan(d, dl, s, sl);
1506 w += sldns_wire2str_aaaa_scan(d, dl, s, sl);
1509 w += sldns_wire2str_dname_scan(d, dl, s, sl, pkt, pktlen);
1511 default: /* unknown */
1517 w += sldns_str_print(s, sl, " ");
1518 w += sldns_wire2str_b64_scan_num(d, dl, s, sl, *dl);
1522 int sldns_wire2str_ipseckey_scan(uint8_t** d, size_t* dl, char** s, size_t* sl,
1523 uint8_t* pkt, size_t pktlen)
1527 size_t odl = *dl, osl = *sl;
1528 int w=sldns_wire2str_ipseckey_scan_internal(d, dl, s, sl, pkt, pktlen);
1539 int sldns_wire2str_hip_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1542 uint8_t algo, hitlen;
1550 pklen = sldns_read_uint16((*d)+2);
1551 if(*dl < (size_t)4 + (size_t)hitlen + (size_t)pklen)
1554 /* write: algo hit pubkey */
1555 w = sldns_str_print(s, sl, "%u ", (unsigned)algo);
1556 w += print_hex_buf(s, sl, (*d)+4, hitlen);
1557 w += sldns_str_print(s, sl, " ");
1560 w += sldns_wire2str_b64_scan_num(d, dl, s, sl, pklen);
1564 int sldns_wire2str_int16_data_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1569 n = sldns_read_uint16(*d);
1570 if(*dl < 2+(size_t)n)
1574 return sldns_wire2str_b64_scan_num(d, dl, s, sl, n);
1577 int sldns_wire2str_nsec3_next_owner_scan(uint8_t** d, size_t* dl, char** s,
1580 return sldns_wire2str_b32_ext_scan(d, dl, s, sl);
1583 int sldns_wire2str_ilnp64_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1588 w = sldns_str_print(s, sl, "%.4x:%.4x:%.4x:%.4x",
1589 sldns_read_uint16(*d), sldns_read_uint16((*d)+2),
1590 sldns_read_uint16((*d)+4), sldns_read_uint16((*d)+6));
1596 int sldns_wire2str_eui48_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1601 w = sldns_str_print(s, sl, "%.2x-%.2x-%.2x-%.2x-%.2x-%.2x",
1602 (*d)[0], (*d)[1], (*d)[2], (*d)[3], (*d)[4], (*d)[5]);
1608 int sldns_wire2str_eui64_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1613 w = sldns_str_print(s, sl, "%.2x-%.2x-%.2x-%.2x-%.2x-%.2x-%.2x-%.2x",
1614 (*d)[0], (*d)[1], (*d)[2], (*d)[3], (*d)[4], (*d)[5],
1621 int sldns_wire2str_tag_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1627 n = (size_t)((*d)[0]);
1631 if(!isalnum((unsigned char)(*d)[i]))
1634 w += sldns_str_print(s, sl, "%c", (char)(*d)[i]);
1640 int sldns_wire2str_long_str_scan(uint8_t** d, size_t* dl, char** s, size_t* sl)
1644 w += sldns_str_print(s, sl, "\"");
1645 for(i=0; i<*dl; i++)
1646 w += str_char_print(s, sl, (*d)[i]);
1647 w += sldns_str_print(s, sl, "\"");
1653 int sldns_wire2str_edns_llq_print(char** s, size_t* sl, uint8_t* data,
1657 const char* llq_errors[] = {"NO-ERROR", "SERV-FULL", "STATIC",
1658 "FORMAT-ERR", "NO-SUCH-LLQ", "BAD-VERS", "UNKNOWN_ERR"};
1659 const unsigned int llq_errors_num = 7;
1660 const char* llq_opcodes[] = {"LLQ-SETUP", "LLQ-REFRESH", "LLQ-EVENT"};
1661 const unsigned int llq_opcodes_num = 3;
1662 uint16_t version, llq_opcode, error_code;
1664 uint32_t lease_life; /* Requested or granted life of LLQ, in seconds */
1667 /* read the record */
1669 w += sldns_str_print(s, sl, "malformed LLQ ");
1670 w += print_hex_buf(s, sl, data, len);
1673 version = sldns_read_uint16(data);
1674 llq_opcode = sldns_read_uint16(data+2);
1675 error_code = sldns_read_uint16(data+4);
1676 memmove(&llq_id, data+6, sizeof(llq_id));
1677 lease_life = sldns_read_uint32(data+14);
1680 w += sldns_str_print(s, sl, "v%d ", (int)version);
1681 if(llq_opcode < llq_opcodes_num)
1682 w += sldns_str_print(s, sl, "%s", llq_opcodes[llq_opcode]);
1683 else w += sldns_str_print(s, sl, "opcode %d", (int)llq_opcode);
1684 if(error_code < llq_errors_num)
1685 w += sldns_str_print(s, sl, " %s", llq_errors[error_code]);
1686 else w += sldns_str_print(s, sl, " error %d", (int)error_code);
1688 w += sldns_str_print(s, sl, " id %llx lease-life %lu",
1689 (unsigned long long)llq_id, (unsigned long)lease_life);
1691 w += sldns_str_print(s, sl, " id %I64x lease-life %lu",
1692 (unsigned long long)llq_id, (unsigned long)lease_life);
1697 int sldns_wire2str_edns_ul_print(char** s, size_t* sl, uint8_t* data,
1703 w += sldns_str_print(s, sl, "malformed UL ");
1704 w += print_hex_buf(s, sl, data, len);
1707 lease = sldns_read_uint32(data);
1708 w += sldns_str_print(s, sl, "lease %lu", (unsigned long)lease);
1712 int sldns_wire2str_edns_nsid_print(char** s, size_t* sl, uint8_t* data,
1716 size_t i, printed=0;
1717 w += print_hex_buf(s, sl, data, len);
1718 for(i=0; i<len; i++) {
1719 if(isprint((unsigned char)data[i]) || data[i] == '\t') {
1721 w += sldns_str_print(s, sl, " (");
1724 w += sldns_str_print(s, sl, "%c", (char)data[i]);
1728 w += sldns_str_print(s, sl, ")");
1732 int sldns_wire2str_edns_dau_print(char** s, size_t* sl, uint8_t* data,
1735 sldns_lookup_table *lt;
1738 for(i=0; i<len; i++) {
1739 lt = sldns_lookup_by_id(sldns_algorithms, (int)data[i]);
1741 w += sldns_str_print(s, sl, " %s", lt->name);
1742 else w += sldns_str_print(s, sl, " %d", (int)data[i]);
1747 int sldns_wire2str_edns_dhu_print(char** s, size_t* sl, uint8_t* data,
1750 sldns_lookup_table *lt;
1753 for(i=0; i<len; i++) {
1754 lt = sldns_lookup_by_id(sldns_hashes, (int)data[i]);
1756 w += sldns_str_print(s, sl, " %s", lt->name);
1757 else w += sldns_str_print(s, sl, " %d", (int)data[i]);
1762 int sldns_wire2str_edns_n3u_print(char** s, size_t* sl, uint8_t* data,
1767 for(i=0; i<len; i++) {
1769 w += sldns_str_print(s, sl, " SHA1");
1770 else w += sldns_str_print(s, sl, " %d", (int)data[i]);
1775 int sldns_wire2str_edns_subnet_print(char** s, size_t* sl, uint8_t* data,
1780 uint8_t source, scope;
1782 w += sldns_str_print(s, sl, "malformed subnet ");
1783 w += print_hex_buf(s, sl, data, len);
1786 family = sldns_read_uint16(data);
1793 memset(ip4, 0, sizeof(ip4));
1795 w += sldns_str_print(s, sl, "trailingdata:");
1796 w += print_hex_buf(s, sl, data+4+4, len-4-4);
1797 w += sldns_str_print(s, sl, " ");
1800 memmove(ip4, data+4, len-4);
1801 if(!inet_ntop(AF_INET, ip4, buf, (socklen_t)sizeof(buf))) {
1802 w += sldns_str_print(s, sl, "ip4ntoperror ");
1803 w += print_hex_buf(s, sl, data+4+4, len-4-4);
1805 w += sldns_str_print(s, sl, "%s", buf);
1807 } else if(family == 2) {
1811 memset(ip6, 0, sizeof(ip6));
1813 w += sldns_str_print(s, sl, "trailingdata:");
1814 w += print_hex_buf(s, sl, data+4+16, len-4-16);
1815 w += sldns_str_print(s, sl, " ");
1818 memmove(ip6, data+4, len-4);
1820 if(!inet_ntop(AF_INET6, ip6, buf, (socklen_t)sizeof(buf))) {
1821 w += sldns_str_print(s, sl, "ip6ntoperror ");
1822 w += print_hex_buf(s, sl, data+4+4, len-4-4);
1824 w += sldns_str_print(s, sl, "%s", buf);
1827 w += print_hex_buf(s, sl, data+4+4, len-4-4);
1831 w += sldns_str_print(s, sl, "family %d ",
1833 w += print_hex_buf(s, sl, data, len);
1835 w += sldns_str_print(s, sl, "/%d scope /%d", (int)source, (int)scope);
1839 int sldns_wire2str_edns_option_print(char** s, size_t* sl,
1840 uint16_t option_code, uint8_t* optdata, size_t optlen)
1843 w += sldns_wire2str_edns_option_code_print(s, sl, option_code);
1844 w += sldns_str_print(s, sl, ": ");
1845 switch(option_code) {
1847 w += sldns_wire2str_edns_llq_print(s, sl, optdata, optlen);
1850 w += sldns_wire2str_edns_ul_print(s, sl, optdata, optlen);
1852 case LDNS_EDNS_NSID:
1853 w += sldns_wire2str_edns_nsid_print(s, sl, optdata, optlen);
1856 w += sldns_wire2str_edns_dau_print(s, sl, optdata, optlen);
1859 w += sldns_wire2str_edns_dhu_print(s, sl, optdata, optlen);
1862 w += sldns_wire2str_edns_n3u_print(s, sl, optdata, optlen);
1864 case LDNS_EDNS_CLIENT_SUBNET:
1865 w += sldns_wire2str_edns_subnet_print(s, sl, optdata, optlen);
1868 /* unknown option code */
1869 w += print_hex_buf(s, sl, optdata, optlen);
1875 /** print the edns options to string */
1877 print_edns_opts(char** s, size_t* sl, uint8_t* rdata, size_t rdatalen)
1879 uint16_t option_code, option_len;
1881 while(rdatalen > 0) {
1884 w += sldns_str_print(s, sl, " ; malformed: ");
1885 w += print_hex_buf(s, sl, rdata, rdatalen);
1888 option_code = sldns_read_uint16(rdata);
1889 option_len = sldns_read_uint16(rdata+2);
1894 if(rdatalen < (size_t)option_len) {
1895 w += sldns_str_print(s, sl, " ; malformed ");
1896 w += sldns_wire2str_edns_option_code_print(s, sl,
1898 w += sldns_str_print(s, sl, ": ");
1899 w += print_hex_buf(s, sl, rdata, rdatalen);
1902 w += sldns_str_print(s, sl, " ; ");
1903 w += sldns_wire2str_edns_option_print(s, sl, option_code,
1905 rdata += option_len;
1906 rdatalen -= option_len;
1911 int sldns_wire2str_edns_scan(uint8_t** data, size_t* data_len, char** str,
1912 size_t* str_len, uint8_t* pkt, size_t pktlen)
1915 uint8_t ext_rcode, edns_version;
1916 uint16_t udpsize, edns_bits, rdatalen;
1917 w += sldns_str_print(str, str_len, "; EDNS:");
1919 /* some input checks, domain name */
1920 if(*data_len < 1+10)
1921 return w + print_remainder_hex("Error malformed 0x",
1922 data, data_len, str, str_len);
1924 return w + print_remainder_hex("Error nonrootdname 0x",
1925 data, data_len, str, str_len);
1930 /* check type and read fixed contents */
1931 if(sldns_read_uint16((*data)) != LDNS_RR_TYPE_OPT) {
1932 return w + print_remainder_hex("Error nottypeOPT 0x",
1933 data, data_len, str, str_len);
1935 udpsize = sldns_read_uint16((*data)+2);
1936 ext_rcode = (*data)[4];
1937 edns_version = (*data)[5];
1938 edns_bits = sldns_read_uint16((*data)+6);
1939 rdatalen = sldns_read_uint16((*data)+8);
1943 w += sldns_str_print(str, str_len, " version: %u;",
1944 (unsigned)edns_version);
1945 w += sldns_str_print(str, str_len, " flags:");
1946 if((edns_bits & LDNS_EDNS_MASK_DO_BIT))
1947 w += sldns_str_print(str, str_len, " do");
1948 /* the extended rcode is the value set, shifted four bits,
1949 * and or'd with the original rcode */
1951 int rc = ((int)ext_rcode)<<4;
1952 if(pkt && pktlen >= LDNS_HEADER_SIZE)
1953 rc |= LDNS_RCODE_WIRE(pkt);
1954 w += sldns_str_print(str, str_len, " ; ext-rcode: %d", rc);
1956 w += sldns_str_print(str, str_len, " ; udp: %u", (unsigned)udpsize);
1959 if(*data_len < rdatalen) {
1960 w += sldns_str_print(str, str_len,
1961 " ; Error EDNS rdata too short; ");
1962 rdatalen = *data_len;
1964 w += print_edns_opts(str, str_len, *data, rdatalen);
1965 (*data) += rdatalen;
1966 (*data_len) -= rdatalen;
1968 w += sldns_str_print(str, str_len, "\n");