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15 * This product includes software developed by the University of
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37 * Permission to use, copy, modify, and distribute this software for any
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40 * the name of Digital Equipment Corporation not be used in advertising or
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48 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
49 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
50 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
55 * Portions Copyright (c) 1995 by International Business Machines, Inc.
57 * International Business Machines, Inc. (hereinafter called IBM) grants
58 * permission under its copyrights to use, copy, modify, and distribute this
59 * Software with or without fee, provided that the above copyright notice and
60 * all paragraphs of this notice appear in all copies, and that the name of IBM
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68 * dynamic updates in TCP/IP networks by means of the Software. No immunity is
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72 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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80 * Copyright (c) 2004 by Internet Systems Consortium, Inc. ("ISC")
81 * Portions Copyright (c) 1996-1999 by Internet Software Consortium.
83 * Permission to use, copy, modify, and distribute this software for any
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88 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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90 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
91 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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93 * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
96 #if defined(LIBC_SCCS) && !defined(lint)
97 static const char sccsid[] = "@(#)res_debug.c 8.1 (Berkeley) 6/4/93";
98 static const char rcsid[] = "$Id: res_debug.c,v 1.3.2.5.4.6 2005/07/28 07:43:22 marka Exp $";
99 #endif /* LIBC_SCCS and not lint */
101 #include "port_before.h"
103 #include <sys/types.h>
104 #include <sys/param.h>
105 #include <sys/socket.h>
107 #include <netinet/in.h>
108 #include <arpa/inet.h>
109 #include <arpa/nameser.h>
116 #include <resolv_mt.h>
122 #include "port_after.h"
125 # define SPRINTF(x) strlen(sprintf/**/x)
127 # define SPRINTF(x) sprintf x
130 extern const char *_res_opcodes[];
131 extern const char *_res_sectioncodes[];
134 * Print the current options.
137 fp_resstat(const res_state statp, FILE *file) {
140 fprintf(file, ";; res options:");
141 for (mask = 1; mask != 0U; mask <<= 1)
142 if (statp->options & mask)
143 fprintf(file, " %s", p_option(mask));
148 do_section(const res_state statp,
149 ns_msg *handle, ns_sect section,
150 int pflag, FILE *file)
153 static int buflen = 2048;
159 * Print answer records.
161 sflag = (statp->pfcode & pflag);
162 if (statp->pfcode && !sflag)
165 buf = malloc(buflen);
167 fprintf(file, ";; memory allocation failure\n");
171 opcode = (ns_opcode) ns_msg_getflag(*handle, ns_f_opcode);
174 if (ns_parserr(handle, section, rrnum, &rr)) {
176 fprintf(file, ";; ns_parserr: %s\n",
178 else if (rrnum > 0 && sflag != 0 &&
179 (statp->pfcode & RES_PRF_HEAD1))
183 if (rrnum == 0 && sflag != 0 && (statp->pfcode & RES_PRF_HEAD1))
184 fprintf(file, ";; %s SECTION:\n",
185 p_section(section, opcode));
186 if (section == ns_s_qd)
187 fprintf(file, ";;\t%s, type = %s, class = %s\n",
189 p_type(ns_rr_type(rr)),
190 p_class(ns_rr_class(rr)));
191 else if (section == ns_s_ar && ns_rr_type(rr) == ns_t_opt) {
192 u_int32_t ttl = ns_rr_ttl(rr);
194 "; EDNS: version: %u, udp=%u, flags=%04x\n",
195 (ttl>>16)&0xff, ns_rr_class(rr), ttl&0xffff);
197 n = ns_sprintrr(handle, &rr, NULL, NULL,
200 if (errno == ENOSPC) {
204 buf = malloc(buflen += 1024);
207 ";; memory allocation failure\n");
212 fprintf(file, ";; ns_sprintrr: %s\n",
227 * Print the contents of a query.
228 * This is intended to be primarily a debugging routine.
231 res_pquery(const res_state statp, const u_char *msg, int len, FILE *file) {
233 int qdcount, ancount, nscount, arcount;
234 u_int opcode, rcode, id;
236 if (ns_initparse(msg, len, &handle) < 0) {
237 fprintf(file, ";; ns_initparse: %s\n", strerror(errno));
240 opcode = ns_msg_getflag(handle, ns_f_opcode);
241 rcode = ns_msg_getflag(handle, ns_f_rcode);
242 id = ns_msg_id(handle);
243 qdcount = ns_msg_count(handle, ns_s_qd);
244 ancount = ns_msg_count(handle, ns_s_an);
245 nscount = ns_msg_count(handle, ns_s_ns);
246 arcount = ns_msg_count(handle, ns_s_ar);
249 * Print header fields.
251 if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEADX) || rcode)
253 ";; ->>HEADER<<- opcode: %s, status: %s, id: %d\n",
254 _res_opcodes[opcode], p_rcode(rcode), id);
255 if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEADX))
257 if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEAD2)) {
258 fprintf(file, "; flags:");
259 if (ns_msg_getflag(handle, ns_f_qr))
260 fprintf(file, " qr");
261 if (ns_msg_getflag(handle, ns_f_aa))
262 fprintf(file, " aa");
263 if (ns_msg_getflag(handle, ns_f_tc))
264 fprintf(file, " tc");
265 if (ns_msg_getflag(handle, ns_f_rd))
266 fprintf(file, " rd");
267 if (ns_msg_getflag(handle, ns_f_ra))
268 fprintf(file, " ra");
269 if (ns_msg_getflag(handle, ns_f_z))
270 fprintf(file, " ??");
271 if (ns_msg_getflag(handle, ns_f_ad))
272 fprintf(file, " ad");
273 if (ns_msg_getflag(handle, ns_f_cd))
274 fprintf(file, " cd");
276 if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEAD1)) {
277 fprintf(file, "; %s: %d",
278 p_section(ns_s_qd, opcode), qdcount);
279 fprintf(file, ", %s: %d",
280 p_section(ns_s_an, opcode), ancount);
281 fprintf(file, ", %s: %d",
282 p_section(ns_s_ns, opcode), nscount);
283 fprintf(file, ", %s: %d",
284 p_section(ns_s_ar, opcode), arcount);
286 if ((!statp->pfcode) || (statp->pfcode &
287 (RES_PRF_HEADX | RES_PRF_HEAD2 | RES_PRF_HEAD1))) {
291 * Print the various sections.
293 do_section(statp, &handle, ns_s_qd, RES_PRF_QUES, file);
294 do_section(statp, &handle, ns_s_an, RES_PRF_ANS, file);
295 do_section(statp, &handle, ns_s_ns, RES_PRF_AUTH, file);
296 do_section(statp, &handle, ns_s_ar, RES_PRF_ADD, file);
297 if (qdcount == 0 && ancount == 0 &&
298 nscount == 0 && arcount == 0)
303 p_cdnname(const u_char *cp, const u_char *msg, int len, FILE *file) {
307 if ((n = dn_expand(msg, msg + len, cp, name, sizeof name)) < 0)
317 p_cdname(const u_char *cp, const u_char *msg, FILE *file) {
318 return (p_cdnname(cp, msg, PACKETSZ, file));
321 /* Return a fully-qualified domain name from a compressed name (with
325 p_fqnname(cp, msg, msglen, name, namelen)
326 const u_char *cp, *msg;
333 if ((n = dn_expand(msg, cp + msglen, cp, name, namelen)) < 0)
335 newlen = strlen(name);
336 if (newlen == 0 || name[newlen - 1] != '.') {
337 if (newlen + 1 >= namelen) /* Lack space for final dot */
340 strcpy(name + newlen, ".");
345 /* XXX: the rest of these functions need to become length-limited, too. */
348 p_fqname(const u_char *cp, const u_char *msg, FILE *file) {
352 n = p_fqnname(cp, msg, MAXCDNAME, name, sizeof name);
360 * Names of RR classes and qclasses. Classes and qclasses are the same, except
361 * that C_ANY is a qclass but not a class. (You can ask for records of class
362 * C_ANY, but you can't have any records of that class in the database.)
364 const struct res_sym __p_class_syms[] = {
365 {C_IN, "IN", (char *)0},
366 {C_CHAOS, "CH", (char *)0},
367 {C_CHAOS, "CHAOS", (char *)0},
368 {C_HS, "HS", (char *)0},
369 {C_HS, "HESIOD", (char *)0},
370 {C_ANY, "ANY", (char *)0},
371 {C_NONE, "NONE", (char *)0},
372 {C_IN, (char *)0, (char *)0}
376 * Names of message sections.
378 const struct res_sym __p_default_section_syms[] = {
379 {ns_s_qd, "QUERY", (char *)0},
380 {ns_s_an, "ANSWER", (char *)0},
381 {ns_s_ns, "AUTHORITY", (char *)0},
382 {ns_s_ar, "ADDITIONAL", (char *)0},
383 {0, (char *)0, (char *)0}
386 const struct res_sym __p_update_section_syms[] = {
387 {S_ZONE, "ZONE", (char *)0},
388 {S_PREREQ, "PREREQUISITE", (char *)0},
389 {S_UPDATE, "UPDATE", (char *)0},
390 {S_ADDT, "ADDITIONAL", (char *)0},
391 {0, (char *)0, (char *)0}
394 const struct res_sym __p_key_syms[] = {
395 {NS_ALG_MD5RSA, "RSA", "RSA KEY with MD5 hash"},
396 {NS_ALG_DH, "DH", "Diffie Hellman"},
397 {NS_ALG_DSA, "DSA", "Digital Signature Algorithm"},
398 {NS_ALG_EXPIRE_ONLY, "EXPIREONLY", "No algorithm"},
399 {NS_ALG_PRIVATE_OID, "PRIVATE", "Algorithm obtained from OID"},
403 const struct res_sym __p_cert_syms[] = {
404 {cert_t_pkix, "PKIX", "PKIX (X.509v3) Certificate"},
405 {cert_t_spki, "SPKI", "SPKI certificate"},
406 {cert_t_pgp, "PGP", "PGP certificate"},
407 {cert_t_url, "URL", "URL Private"},
408 {cert_t_oid, "OID", "OID Private"},
413 * Names of RR types and qtypes. Types and qtypes are the same, except
414 * that T_ANY is a qtype but not a type. (You can ask for records of type
415 * T_ANY, but you can't have any records of that type in the database.)
417 const struct res_sym __p_type_syms[] = {
418 {ns_t_a, "A", "address"},
419 {ns_t_ns, "NS", "name server"},
420 {ns_t_md, "MD", "mail destination (deprecated)"},
421 {ns_t_mf, "MF", "mail forwarder (deprecated)"},
422 {ns_t_cname, "CNAME", "canonical name"},
423 {ns_t_soa, "SOA", "start of authority"},
424 {ns_t_mb, "MB", "mailbox"},
425 {ns_t_mg, "MG", "mail group member"},
426 {ns_t_mr, "MR", "mail rename"},
427 {ns_t_null, "NULL", "null"},
428 {ns_t_wks, "WKS", "well-known service (deprecated)"},
429 {ns_t_ptr, "PTR", "domain name pointer"},
430 {ns_t_hinfo, "HINFO", "host information"},
431 {ns_t_minfo, "MINFO", "mailbox information"},
432 {ns_t_mx, "MX", "mail exchanger"},
433 {ns_t_txt, "TXT", "text"},
434 {ns_t_rp, "RP", "responsible person"},
435 {ns_t_afsdb, "AFSDB", "DCE or AFS server"},
436 {ns_t_x25, "X25", "X25 address"},
437 {ns_t_isdn, "ISDN", "ISDN address"},
438 {ns_t_rt, "RT", "router"},
439 {ns_t_nsap, "NSAP", "nsap address"},
440 {ns_t_nsap_ptr, "NSAP_PTR", "domain name pointer"},
441 {ns_t_sig, "SIG", "signature"},
442 {ns_t_key, "KEY", "key"},
443 {ns_t_px, "PX", "mapping information"},
444 {ns_t_gpos, "GPOS", "geographical position (withdrawn)"},
445 {ns_t_aaaa, "AAAA", "IPv6 address"},
446 {ns_t_loc, "LOC", "location"},
447 {ns_t_nxt, "NXT", "next valid name (unimplemented)"},
448 {ns_t_eid, "EID", "endpoint identifier (unimplemented)"},
449 {ns_t_nimloc, "NIMLOC", "NIMROD locator (unimplemented)"},
450 {ns_t_srv, "SRV", "server selection"},
451 {ns_t_atma, "ATMA", "ATM address (unimplemented)"},
452 {ns_t_tkey, "TKEY", "tkey"},
453 {ns_t_tsig, "TSIG", "transaction signature"},
454 {ns_t_ixfr, "IXFR", "incremental zone transfer"},
455 {ns_t_axfr, "AXFR", "zone transfer"},
456 {ns_t_zxfr, "ZXFR", "compressed zone transfer"},
457 {ns_t_mailb, "MAILB", "mailbox-related data (deprecated)"},
458 {ns_t_maila, "MAILA", "mail agent (deprecated)"},
459 {ns_t_naptr, "NAPTR", "URN Naming Authority"},
460 {ns_t_kx, "KX", "Key Exchange"},
461 {ns_t_cert, "CERT", "Certificate"},
462 {ns_t_a6, "A6", "IPv6 Address"},
463 {ns_t_dname, "DNAME", "dname"},
464 {ns_t_sink, "SINK", "Kitchen Sink (experimental)"},
465 {ns_t_opt, "OPT", "EDNS Options"},
466 {ns_t_any, "ANY", "\"any\""},
471 * Names of DNS rcodes.
473 const struct res_sym __p_rcode_syms[] = {
474 {ns_r_noerror, "NOERROR", "no error"},
475 {ns_r_formerr, "FORMERR", "format error"},
476 {ns_r_servfail, "SERVFAIL", "server failed"},
477 {ns_r_nxdomain, "NXDOMAIN", "no such domain name"},
478 {ns_r_notimpl, "NOTIMP", "not implemented"},
479 {ns_r_refused, "REFUSED", "refused"},
480 {ns_r_yxdomain, "YXDOMAIN", "domain name exists"},
481 {ns_r_yxrrset, "YXRRSET", "rrset exists"},
482 {ns_r_nxrrset, "NXRRSET", "rrset doesn't exist"},
483 {ns_r_notauth, "NOTAUTH", "not authoritative"},
484 {ns_r_notzone, "NOTZONE", "Not in zone"},
486 {ns_r_badsig, "BADSIG", "bad signature"},
487 {ns_r_badkey, "BADKEY", "bad key"},
488 {ns_r_badtime, "BADTIME", "bad time"},
493 sym_ston(const struct res_sym *syms, const char *name, int *success) {
494 for ((void)NULL; syms->name != 0; syms++) {
495 if (strcasecmp (name, syms->name) == 0) {
498 return (syms->number);
503 return (syms->number); /* The default value. */
507 sym_ntos(const struct res_sym *syms, int number, int *success) {
508 char *unname = sym_ntos_unname;
510 for ((void)NULL; syms->name != 0; syms++) {
511 if (number == syms->number) {
518 sprintf(unname, "%d", number); /* XXX nonreentrant */
525 sym_ntop(const struct res_sym *syms, int number, int *success) {
526 char *unname = sym_ntop_unname;
528 for ((void)NULL; syms->name != 0; syms++) {
529 if (number == syms->number) {
532 return (syms->humanname);
535 sprintf(unname, "%d", number); /* XXX nonreentrant */
542 * Return a string for the type.
548 static char typebuf[20];
550 result = sym_ntos(__p_type_syms, type, &success);
553 if (type < 0 || type > 0xffff)
555 sprintf(typebuf, "TYPE%d", type);
560 * Return a string for the type.
563 p_section(int section, int opcode) {
564 const struct res_sym *symbols;
568 symbols = __p_update_section_syms;
571 symbols = __p_default_section_syms;
574 return (sym_ntos(symbols, section, (int *)0));
578 * Return a mnemonic for class.
584 static char classbuf[20];
586 result = sym_ntos(__p_class_syms, class, &success);
589 if (class < 0 || class > 0xffff)
591 sprintf(classbuf, "CLASS%d", class);
596 * Return a mnemonic for an option
599 p_option(u_long option) {
600 char *nbuf = p_option_nbuf;
603 case RES_INIT: return "init";
604 case RES_DEBUG: return "debug";
605 case RES_AAONLY: return "aaonly(unimpl)";
606 case RES_USEVC: return "usevc";
607 case RES_PRIMARY: return "primry(unimpl)";
608 case RES_IGNTC: return "igntc";
609 case RES_RECURSE: return "recurs";
610 case RES_DEFNAMES: return "defnam";
611 case RES_STAYOPEN: return "styopn";
612 case RES_DNSRCH: return "dnsrch";
613 case RES_INSECURE1: return "insecure1";
614 case RES_INSECURE2: return "insecure2";
615 case RES_NOALIASES: return "noaliases";
616 case RES_USE_INET6: return "inet6";
617 #ifdef RES_USE_EDNS0 /* KAME extension */
618 case RES_USE_EDNS0: return "edns0";
621 case RES_USE_DNAME: return "dname";
623 #ifdef RES_USE_DNSSEC
624 case RES_USE_DNSSEC: return "dnssec";
626 #ifdef RES_NOTLDQUERY
627 case RES_NOTLDQUERY: return "no-tld-query";
629 #ifdef RES_NO_NIBBLE2
630 case RES_NO_NIBBLE2: return "no-nibble2";
632 /* XXX nonreentrant */
633 default: sprintf(nbuf, "?0x%lx?", (u_long)option);
639 * Return a mnemonic for a time to live.
642 p_time(u_int32_t value) {
643 char *nbuf = p_time_nbuf;
645 if (ns_format_ttl(value, nbuf, sizeof nbuf) < 0)
646 sprintf(nbuf, "%u", value);
651 * Return a string for the rcode.
655 return (sym_ntos(__p_rcode_syms, rcode, (int *)0));
659 * Return a string for a res_sockaddr_union.
662 p_sockun(union res_sockaddr_union u, char *buf, size_t size) {
663 char ret[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:123.123.123.123"];
665 switch (u.sin.sin_family) {
667 inet_ntop(AF_INET, &u.sin.sin_addr, ret, sizeof ret);
669 #ifdef HAS_INET6_STRUCTS
671 inet_ntop(AF_INET6, &u.sin6.sin6_addr, ret, sizeof ret);
675 sprintf(ret, "[af%d]", u.sin.sin_family);
679 strncpy(buf, ret, size - 1);
686 * routines to convert between on-the-wire RR format and zone file format.
687 * Does not contain conversion to/from decimal degrees; divide or multiply
688 * by 60*60*1000 for that.
691 static unsigned int poweroften[10] = {1, 10, 100, 1000, 10000, 100000,
692 1000000,10000000,100000000,1000000000};
694 /* takes an XeY precision/size value, returns a string representation. */
699 char *retbuf = precsize_ntoa_retbuf;
701 int mantissa, exponent;
703 mantissa = (int)((prec >> 4) & 0x0f) % 10;
704 exponent = (int)((prec >> 0) & 0x0f) % 10;
706 val = mantissa * poweroften[exponent];
708 (void) sprintf(retbuf, "%lu.%.2lu", val/100, val%100);
712 /* converts ascii size/precision X * 10**Y(cm) to 0xXY. moves pointer. */
714 precsize_aton(const char **strptr) {
715 unsigned int mval = 0, cmval = 0;
723 while (isdigit((unsigned char)*cp))
724 mval = mval * 10 + (*cp++ - '0');
726 if (*cp == '.') { /* centimeters */
728 if (isdigit((unsigned char)*cp)) {
729 cmval = (*cp++ - '0') * 10;
730 if (isdigit((unsigned char)*cp)) {
731 cmval += (*cp++ - '0');
735 cmval = (mval * 100) + cmval;
737 for (exponent = 0; exponent < 9; exponent++)
738 if (cmval < poweroften[exponent+1])
741 mantissa = cmval / poweroften[exponent];
745 retval = (mantissa << 4) | exponent;
752 /* converts ascii lat/lon to unsigned encoded 32-bit number. moves pointer. */
754 latlon2ul(const char **latlonstrptr, int *which) {
757 int deg = 0, min = 0, secs = 0, secsfrac = 0;
761 while (isdigit((unsigned char)*cp))
762 deg = deg * 10 + (*cp++ - '0');
764 while (isspace((unsigned char)*cp))
767 if (!(isdigit((unsigned char)*cp)))
770 while (isdigit((unsigned char)*cp))
771 min = min * 10 + (*cp++ - '0');
773 while (isspace((unsigned char)*cp))
776 if (!(isdigit((unsigned char)*cp)))
779 while (isdigit((unsigned char)*cp))
780 secs = secs * 10 + (*cp++ - '0');
782 if (*cp == '.') { /* decimal seconds */
784 if (isdigit((unsigned char)*cp)) {
785 secsfrac = (*cp++ - '0') * 100;
786 if (isdigit((unsigned char)*cp)) {
787 secsfrac += (*cp++ - '0') * 10;
788 if (isdigit((unsigned char)*cp)) {
789 secsfrac += (*cp++ - '0');
795 while (!isspace((unsigned char)*cp)) /* if any trailing garbage */
798 while (isspace((unsigned char)*cp))
805 retval = ((unsigned)1<<31)
806 + (((((deg * 60) + min) * 60) + secs) * 1000)
811 retval = ((unsigned)1<<31)
812 - (((((deg * 60) + min) * 60) + secs) * 1000)
816 retval = 0; /* invalid value -- indicates error */
823 *which = 1; /* latitude */
827 *which = 2; /* longitude */
830 *which = 0; /* error */
834 cp++; /* skip the hemisphere */
836 while (!isspace((unsigned char)*cp)) /* if any trailing garbage */
839 while (isspace((unsigned char)*cp)) /* move to next field */
847 /* converts a zone file representation in a string to an RDATA on-the-wire
850 loc_aton(ascii, binary)
854 const char *cp, *maxcp;
857 u_int32_t latit = 0, longit = 0, alt = 0;
858 u_int32_t lltemp1 = 0, lltemp2 = 0;
859 int altmeters = 0, altfrac = 0, altsign = 1;
860 u_int8_t hp = 0x16; /* default = 1e6 cm = 10000.00m = 10km */
861 u_int8_t vp = 0x13; /* default = 1e3 cm = 10.00m */
862 u_int8_t siz = 0x12; /* default = 1e2 cm = 1.00m */
863 int which1 = 0, which2 = 0;
866 maxcp = cp + strlen(ascii);
868 lltemp1 = latlon2ul(&cp, &which1);
870 lltemp2 = latlon2ul(&cp, &which2);
872 switch (which1 + which2) {
873 case 3: /* 1 + 2, the only valid combination */
874 if ((which1 == 1) && (which2 == 2)) { /* normal case */
877 } else if ((which1 == 2) && (which2 == 1)) { /* reversed */
880 } else { /* some kind of brokenness */
884 default: /* we didn't get one of each */
897 while (isdigit((unsigned char)*cp))
898 altmeters = altmeters * 10 + (*cp++ - '0');
900 if (*cp == '.') { /* decimal meters */
902 if (isdigit((unsigned char)*cp)) {
903 altfrac = (*cp++ - '0') * 10;
904 if (isdigit((unsigned char)*cp)) {
905 altfrac += (*cp++ - '0');
910 alt = (10000000 + (altsign * (altmeters * 100 + altfrac)));
912 while (!isspace((unsigned char)*cp) && (cp < maxcp)) /* if trailing garbage or m */
915 while (isspace((unsigned char)*cp) && (cp < maxcp))
921 siz = precsize_aton(&cp);
923 while (!isspace((unsigned char)*cp) && (cp < maxcp)) /* if trailing garbage or m */
926 while (isspace((unsigned char)*cp) && (cp < maxcp))
932 hp = precsize_aton(&cp);
934 while (!isspace((unsigned char)*cp) && (cp < maxcp)) /* if trailing garbage or m */
937 while (isspace((unsigned char)*cp) && (cp < maxcp))
943 vp = precsize_aton(&cp);
948 *bcp++ = (u_int8_t) 0; /* version byte */
956 return (16); /* size of RR in octets */
959 /* takes an on-the-wire LOC RR and formats it in a human readable format. */
961 loc_ntoa(binary, ascii)
962 const u_char *binary;
965 static const char *error = "?";
966 static char tmpbuf[sizeof
967 "1000 60 60.000 N 1000 60 60.000 W -12345678.00m 90000000.00m 90000000.00m 90000000.00m"];
968 const u_char *cp = binary;
970 int latdeg, latmin, latsec, latsecfrac;
971 int longdeg, longmin, longsec, longsecfrac;
972 char northsouth, eastwest;
974 int altmeters, altfrac;
976 const u_int32_t referencealt = 100000 * 100;
978 int32_t latval, longval, altval;
980 u_int8_t sizeval, hpval, vpval, versionval;
982 char *sizestr, *hpstr, *vpstr;
990 (void) sprintf(ascii, "; error: unknown LOC RR version");
1000 latval = (templ - ((unsigned)1<<31));
1003 longval = (templ - ((unsigned)1<<31));
1006 if (templ < referencealt) { /* below WGS 84 spheroid */
1007 altval = referencealt - templ;
1010 altval = templ - referencealt;
1020 latsecfrac = latval % 1000;
1021 latval = latval / 1000;
1022 latsec = latval % 60;
1023 latval = latval / 60;
1024 latmin = latval % 60;
1025 latval = latval / 60;
1034 longsecfrac = longval % 1000;
1035 longval = longval / 1000;
1036 longsec = longval % 60;
1037 longval = longval / 60;
1038 longmin = longval % 60;
1039 longval = longval / 60;
1042 altfrac = altval % 100;
1043 altmeters = (altval / 100);
1045 sizestr = strdup(precsize_ntoa(sizeval));
1046 hpstr = strdup(precsize_ntoa(hpval));
1047 vpstr = strdup(precsize_ntoa(vpval));
1050 "%d %.2d %.2d.%.3d %c %d %.2d %.2d.%.3d %c %s%d.%.2dm %sm %sm %sm",
1051 latdeg, latmin, latsec, latsecfrac, northsouth,
1052 longdeg, longmin, longsec, longsecfrac, eastwest,
1053 altsign, altmeters, altfrac,
1054 (sizestr != NULL) ? sizestr : error,
1055 (hpstr != NULL) ? hpstr : error,
1056 (vpstr != NULL) ? vpstr : error);
1058 if (sizestr != NULL)
1069 /* Return the number of DNS hierarchy levels in the name. */
1071 dn_count_labels(const char *name) {
1075 for (i = 0, count = 0; i < len; i++) {
1076 /* XXX need to check for \. or use named's nlabels(). */
1081 /* don't count initial wildcard */
1086 /* don't count the null label for root. */
1087 /* if terminating '.' not found, must adjust */
1088 /* count to include last label */
1089 if (len > 0 && name[len-1] != '.')
1096 * Make dates expressed in seconds-since-Jan-1-1970 easy to read.
1097 * SIG records are required to be printed like this, by the Secure DNS RFC.
1100 p_secstodate (u_long secs) {
1101 char *output = p_secstodate_output;
1102 time_t clock = secs;
1107 time = gmtime_r(&clock, &res);
1109 time = gmtime(&clock);
1111 time->tm_year += 1900;
1113 sprintf(output, "%04d%02d%02d%02d%02d%02d",
1114 time->tm_year, time->tm_mon, time->tm_mday,
1115 time->tm_hour, time->tm_min, time->tm_sec);
1120 res_nametoclass(const char *buf, int *successp) {
1121 unsigned long result;
1125 result = sym_ston(__p_class_syms, buf, &success);
1129 if (strncasecmp(buf, "CLASS", 5) != 0 ||
1130 !isdigit((unsigned char)buf[5]))
1133 result = strtoul(buf + 5, &endptr, 10);
1134 if (errno == 0 && *endptr == '\0' && result <= 0xffffU)
1138 *successp = success;
1143 res_nametotype(const char *buf, int *successp) {
1144 unsigned long result;
1148 result = sym_ston(__p_type_syms, buf, &success);
1152 if (strncasecmp(buf, "type", 4) != 0 ||
1153 !isdigit((unsigned char)buf[4]))
1156 result = strtoul(buf + 4, &endptr, 10);
1157 if (errno == 0 && *endptr == '\0' && result <= 0xffffU)
1161 *successp = success;