3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * Portions Copyright (c) 1993 by Digital Equipment Corporation.
33 * Permission to use, copy, modify, and distribute this software for any
34 * purpose with or without fee is hereby granted, provided that the above
35 * copyright notice and this permission notice appear in all copies, and that
36 * the name of Digital Equipment Corporation not be used in advertising or
37 * publicity pertaining to distribution of the document or software without
38 * specific, written prior permission.
40 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
41 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
42 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
43 * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
44 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
45 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
46 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
51 * Portions Copyright (c) 1995 by International Business Machines, Inc.
53 * International Business Machines, Inc. (hereinafter called IBM) grants
54 * permission under its copyrights to use, copy, modify, and distribute this
55 * Software with or without fee, provided that the above copyright notice and
56 * all paragraphs of this notice appear in all copies, and that the name of IBM
57 * not be used in connection with the marketing of any product incorporating
58 * the Software or modifications thereof, without specific, written prior
61 * To the extent it has a right to do so, IBM grants an immunity from suit
62 * under its patents, if any, for the use, sale or manufacture of products to
63 * the extent that such products are used for performing Domain Name System
64 * dynamic updates in TCP/IP networks by means of the Software. No immunity is
65 * granted for any product per se or for any other function of any product.
67 * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES,
68 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
69 * PARTICULAR PURPOSE. IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL,
70 * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING
71 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN
72 * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES.
76 * Portions Copyright (c) 1996-1999 by Internet Software Consortium.
78 * Permission to use, copy, modify, and distribute this software for any
79 * purpose with or without fee is hereby granted, provided that the above
80 * copyright notice and this permission notice appear in all copies.
82 * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS
83 * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
84 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE
85 * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
86 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
87 * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
88 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
92 #include <sys/types.h>
93 #include <sys/param.h>
94 #include <sys/socket.h>
96 #include <netinet/in.h>
97 #include <arpa/inet.h>
98 #include <arpa/nameser.h>
104 #include <resolv/resolv-internal.h>
111 # define SPRINTF(x) strlen(sprintf/**/x)
113 # define SPRINTF(x) sprintf x
116 extern const char *_res_sectioncodes
[] attribute_hidden
;
118 const char *_res_opcodes
[] =
123 "CQUERYU", /* experimental */
124 "NOTIFY", /* experimental */
137 libresolv_hidden_data_def (_res_opcodes
)
139 static const char *p_section(int section
, int opcode
);
142 * Print the current options.
145 fp_resstat(const res_state statp
, FILE *file
) {
148 fprintf(file
, ";; res options:");
149 for (mask
= 1; mask
!= 0; mask
<<= 1)
150 if (statp
->options
& mask
)
151 fprintf(file
, " %s", p_option(mask
));
156 do_section (int pfcode
, ns_msg
*handle
, ns_sect section
, int pflag
, FILE *file
)
159 static int buflen
= 2048;
165 * Print answer records.
167 sflag
= (pfcode
& pflag
);
168 if (pfcode
&& !sflag
)
171 buf
= malloc(buflen
);
173 fprintf(file
, ";; memory allocation failure\n");
177 opcode
= (ns_opcode
) ns_msg_getflag(*handle
, ns_f_opcode
);
180 if (ns_parserr(handle
, section
, rrnum
, &rr
)) {
182 fprintf(file
, ";; ns_parserr: %s\n",
184 else if (rrnum
> 0 && sflag
!= 0 &&
185 (pfcode
& RES_PRF_HEAD1
))
189 if (rrnum
== 0 && sflag
!= 0 && (pfcode
& RES_PRF_HEAD1
))
190 fprintf(file
, ";; %s SECTION:\n",
191 p_section(section
, opcode
));
192 if (section
== ns_s_qd
)
193 fprintf(file
, ";;\t%s, type = %s, class = %s\n",
195 p_type(ns_rr_type(rr
)),
196 p_class(ns_rr_class(rr
)));
198 n
= ns_sprintrr(handle
, &rr
, NULL
, NULL
,
201 if (errno
== ENOSPC
) {
205 buf
= malloc(buflen
+= 1024);
208 ";; memory allocation failure\n");
213 fprintf(file
, ";; ns_sprintrr: %s\n",
227 * Print the contents of a query.
228 * This is intended to be primarily a debugging routine.
231 fp_nquery (const unsigned char *msg
, int len
, FILE *file
)
234 int qdcount
, ancount
, nscount
, arcount
;
235 u_int opcode
, rcode
, id
;
237 /* There is no need to initialize _res: If _res is not yet
238 initialized, _res.pfcode is zero. But initialization will
239 leave it at zero, too. _res.pfcode is an unsigned long,
240 but the code here assumes that the flags fit into an int,
242 int pfcode
= _res
.pfcode
;
244 if (ns_initparse(msg
, len
, &handle
) < 0) {
245 fprintf(file
, ";; ns_initparse: %s\n", strerror(errno
));
248 opcode
= ns_msg_getflag(handle
, ns_f_opcode
);
249 rcode
= ns_msg_getflag(handle
, ns_f_rcode
);
250 id
= ns_msg_id(handle
);
251 qdcount
= ns_msg_count(handle
, ns_s_qd
);
252 ancount
= ns_msg_count(handle
, ns_s_an
);
253 nscount
= ns_msg_count(handle
, ns_s_ns
);
254 arcount
= ns_msg_count(handle
, ns_s_ar
);
257 * Print header fields.
259 if ((!pfcode
) || (pfcode
& RES_PRF_HEADX
) || rcode
)
261 ";; ->>HEADER<<- opcode: %s, status: %s, id: %d\n",
262 _res_opcodes
[opcode
], p_rcode(rcode
), id
);
263 if ((!pfcode
) || (pfcode
& RES_PRF_HEADX
))
265 if ((!pfcode
) || (pfcode
& RES_PRF_HEAD2
)) {
266 fprintf(file
, "; flags:");
267 if (ns_msg_getflag(handle
, ns_f_qr
))
268 fprintf(file
, " qr");
269 if (ns_msg_getflag(handle
, ns_f_aa
))
270 fprintf(file
, " aa");
271 if (ns_msg_getflag(handle
, ns_f_tc
))
272 fprintf(file
, " tc");
273 if (ns_msg_getflag(handle
, ns_f_rd
))
274 fprintf(file
, " rd");
275 if (ns_msg_getflag(handle
, ns_f_ra
))
276 fprintf(file
, " ra");
277 if (ns_msg_getflag(handle
, ns_f_z
))
278 fprintf(file
, " ??");
279 if (ns_msg_getflag(handle
, ns_f_ad
))
280 fprintf(file
, " ad");
281 if (ns_msg_getflag(handle
, ns_f_cd
))
282 fprintf(file
, " cd");
284 if ((!pfcode
) || (pfcode
& RES_PRF_HEAD1
)) {
285 fprintf(file
, "; %s: %d",
286 p_section(ns_s_qd
, opcode
), qdcount
);
287 fprintf(file
, ", %s: %d",
288 p_section(ns_s_an
, opcode
), ancount
);
289 fprintf(file
, ", %s: %d",
290 p_section(ns_s_ns
, opcode
), nscount
);
291 fprintf(file
, ", %s: %d",
292 p_section(ns_s_ar
, opcode
), arcount
);
294 if ((!pfcode
) || (pfcode
&
295 (RES_PRF_HEADX
| RES_PRF_HEAD2
| RES_PRF_HEAD1
))) {
299 * Print the various sections.
301 do_section (pfcode
, &handle
, ns_s_qd
, RES_PRF_QUES
, file
);
302 do_section (pfcode
, &handle
, ns_s_an
, RES_PRF_ANS
, file
);
303 do_section (pfcode
, &handle
, ns_s_ns
, RES_PRF_AUTH
, file
);
304 do_section (pfcode
, &handle
, ns_s_ar
, RES_PRF_ADD
, file
);
305 if (qdcount
== 0 && ancount
== 0 &&
306 nscount
== 0 && arcount
== 0)
309 libresolv_hidden_def (fp_nquery
)
312 fp_query (const unsigned char *msg
, FILE *file
)
314 fp_nquery (msg
, PACKETSZ
, file
);
316 libresolv_hidden_def (fp_query
)
319 p_query (const unsigned char *msg
)
321 fp_query (msg
, stdout
);
325 p_cdnname(const u_char
*cp
, const u_char
*msg
, int len
, FILE *file
) {
329 if ((n
= dn_expand(msg
, msg
+ len
, cp
, name
, sizeof name
)) < 0)
337 libresolv_hidden_def (p_cdnname
)
340 p_cdname(const u_char
*cp
, const u_char
*msg
, FILE *file
) {
341 return (p_cdnname(cp
, msg
, PACKETSZ
, file
));
344 /* Return a fully-qualified domain name from a compressed name (with
348 p_fqnname (const u_char
*cp
, const u_char
*msg
, int msglen
, char *name
,
353 if ((n
= dn_expand(msg
, cp
+ msglen
, cp
, name
, namelen
)) < 0)
355 newlen
= strlen(name
);
356 if (newlen
== 0 || name
[newlen
- 1] != '.') {
357 if (newlen
+ 1 >= namelen
) /* Lack space for final dot */
360 strcpy(name
+ newlen
, ".");
364 libresolv_hidden_def (p_fqnname
)
366 /* XXX: the rest of these functions need to become length-limited, too. */
369 p_fqname(const u_char
*cp
, const u_char
*msg
, FILE *file
) {
373 n
= p_fqnname(cp
, msg
, MAXCDNAME
, name
, sizeof name
);
381 * Names of RR classes and qclasses. Classes and qclasses are the same, except
382 * that C_ANY is a qclass but not a class. (You can ask for records of class
383 * C_ANY, but you can't have any records of that class in the database.)
385 extern const struct res_sym __p_class_syms
[];
386 libresolv_hidden_proto (__p_class_syms
)
387 const struct res_sym __p_class_syms
[] = {
388 {C_IN
, (char *) "IN"},
389 {C_CHAOS
, (char *) "CHAOS"},
390 {C_HS
, (char *) "HS"},
391 {C_HS
, (char *) "HESIOD"},
392 {C_ANY
, (char *) "ANY"},
393 {C_NONE
, (char *) "NONE"},
396 libresolv_hidden_data_def (__p_class_syms
)
399 * Names of message sections.
401 const struct res_sym __p_default_section_syms
[] attribute_hidden
= {
402 {ns_s_qd
, (char *) "QUERY"},
403 {ns_s_an
, (char *) "ANSWER"},
404 {ns_s_ns
, (char *) "AUTHORITY"},
405 {ns_s_ar
, (char *) "ADDITIONAL"},
409 const struct res_sym __p_update_section_syms
[] attribute_hidden
= {
410 {S_ZONE
, (char *) "ZONE"},
411 {S_PREREQ
, (char *) "PREREQUISITE"},
412 {S_UPDATE
, (char *) "UPDATE"},
413 {S_ADDT
, (char *) "ADDITIONAL"},
418 * Names of RR types and qtypes. The list is incomplete because its
419 * size is part of the ABI.
421 extern const struct res_sym __p_type_syms
[];
422 libresolv_hidden_proto (__p_type_syms
)
423 const struct res_sym __p_type_syms
[] = {
424 {ns_t_a
, (char *) "A", (char *) "address"},
425 {ns_t_ns
, (char *) "NS", (char *) "name server"},
426 {ns_t_md
, (char *) "MD", (char *) "mail destination (deprecated)"},
427 {ns_t_mf
, (char *) "MF", (char *) "mail forwarder (deprecated)"},
428 {ns_t_cname
, (char *) "CNAME", (char *) "canonical name"},
429 {ns_t_soa
, (char *) "SOA", (char *) "start of authority"},
430 {ns_t_mb
, (char *) "MB", (char *) "mailbox"},
431 {ns_t_mg
, (char *) "MG", (char *) "mail group member"},
432 {ns_t_mr
, (char *) "MR", (char *) "mail rename"},
433 {ns_t_null
, (char *) "NULL", (char *) "null"},
434 {ns_t_wks
, (char *) "WKS", (char *) "well-known service (deprecated)"},
435 {ns_t_ptr
, (char *) "PTR", (char *) "domain name pointer"},
436 {ns_t_hinfo
, (char *) "HINFO", (char *) "host information"},
437 {ns_t_minfo
, (char *) "MINFO", (char *) "mailbox information"},
438 {ns_t_mx
, (char *) "MX", (char *) "mail exchanger"},
439 {ns_t_txt
, (char *) "TXT", (char *) "text"},
440 {ns_t_rp
, (char *) "RP", (char *) "responsible person"},
441 {ns_t_afsdb
, (char *) "AFSDB", (char *) "DCE or AFS server"},
442 {ns_t_x25
, (char *) "X25", (char *) "X25 address"},
443 {ns_t_isdn
, (char *) "ISDN", (char *) "ISDN address"},
444 {ns_t_rt
, (char *) "RT", (char *) "router"},
445 {ns_t_nsap
, (char *) "NSAP", (char *) "nsap address"},
446 {ns_t_nsap_ptr
, (char *) "NSAP_PTR", (char *) "domain name pointer"},
447 {ns_t_sig
, (char *) "SIG", (char *) "signature"},
448 {ns_t_key
, (char *) "KEY", (char *) "key"},
449 {ns_t_px
, (char *) "PX", (char *) "mapping information"},
450 {ns_t_gpos
, (char *) "GPOS",
451 (char *) "geographical position (withdrawn)"},
452 {ns_t_aaaa
, (char *) "AAAA", (char *) "IPv6 address"},
453 {ns_t_loc
, (char *) "LOC", (char *) "location"},
454 {ns_t_nxt
, (char *) "NXT", (char *) "next valid name (unimplemented)"},
455 {ns_t_eid
, (char *) "EID", (char *) "endpoint identifier (unimplemented)"},
456 {ns_t_nimloc
, (char *) "NIMLOC", (char *) "NIMROD locator (unimplemented)"},
457 {ns_t_srv
, (char *) "SRV", (char *) "server selection"},
458 {ns_t_atma
, (char *) "ATMA", (char *) "ATM address (unimplemented)"},
459 {ns_t_dname
, (char *) "DNAME", (char *) "Non-terminal DNAME (for IPv6)"},
460 {ns_t_tsig
, (char *) "TSIG", (char *) "transaction signature"},
461 {ns_t_ixfr
, (char *) "IXFR", (char *) "incremental zone transfer"},
462 {ns_t_axfr
, (char *) "AXFR", (char *) "zone transfer"},
463 {ns_t_mailb
, (char *) "MAILB", (char *) "mailbox-related data (deprecated)"},
464 {ns_t_maila
, (char *) "MAILA", (char *) "mail agent (deprecated)"},
465 {ns_t_naptr
, (char *) "NAPTR", (char *) "URN Naming Authority"},
466 {ns_t_kx
, (char *) "KX", (char *) "Key Exchange"},
467 {ns_t_cert
, (char *) "CERT", (char *) "Certificate"},
468 {ns_t_any
, (char *) "ANY", (char *) "\"any\""},
469 {0, NULL
, NULL
}, /* Padding to preserve ABI. */
472 libresolv_hidden_data_def (__p_type_syms
)
475 * Names of DNS rcodes.
477 const struct res_sym __p_rcode_syms
[] attribute_hidden
= {
478 {ns_r_noerror
, (char *) "NOERROR", (char *) "no error"},
479 {ns_r_formerr
, (char *) "FORMERR", (char *) "format error"},
480 {ns_r_servfail
, (char *) "SERVFAIL", (char *) "server failed"},
481 {ns_r_nxdomain
, (char *) "NXDOMAIN", (char *) "no such domain name"},
482 {ns_r_notimpl
, (char *) "NOTIMP", (char *) "not implemented"},
483 {ns_r_refused
, (char *) "REFUSED", (char *) "refused"},
484 {ns_r_yxdomain
, (char *) "YXDOMAIN", (char *) "domain name exists"},
485 {ns_r_yxrrset
, (char *) "YXRRSET", (char *) "rrset exists"},
486 {ns_r_nxrrset
, (char *) "NXRRSET", (char *) "rrset doesn't exist"},
487 {ns_r_notauth
, (char *) "NOTAUTH", (char *) "not authoritative"},
488 {ns_r_notzone
, (char *) "NOTZONE", (char *) "Not in zone"},
489 {ns_r_max
, (char *) "", (char *) ""},
490 {ns_r_badsig
, (char *) "BADSIG", (char *) "bad signature"},
491 {ns_r_badkey
, (char *) "BADKEY", (char *) "bad key"},
492 {ns_r_badtime
, (char *) "BADTIME", (char *) "bad time"},
497 sym_ston(const struct res_sym
*syms
, const char *name
, int *success
) {
498 for ((void)NULL
; syms
->name
!= 0; syms
++) {
499 if (strcasecmp (name
, syms
->name
) == 0) {
502 return (syms
->number
);
507 return (syms
->number
); /* The default value. */
511 sym_ntos(const struct res_sym
*syms
, int number
, int *success
) {
512 static char unname
[20];
514 for ((void)NULL
; syms
->name
!= 0; syms
++) {
515 if (number
== syms
->number
) {
522 sprintf(unname
, "%d", number
); /* XXX nonreentrant */
527 libresolv_hidden_def (sym_ntos
)
530 sym_ntop(const struct res_sym
*syms
, int number
, int *success
) {
531 static char unname
[20];
533 for ((void)NULL
; syms
->name
!= 0; syms
++) {
534 if (number
== syms
->number
) {
537 return (syms
->humanname
);
540 sprintf(unname
, "%d", number
); /* XXX nonreentrant */
547 * Return a string for the type.
551 return (sym_ntos(__p_type_syms
, type
, (int *)0));
553 libresolv_hidden_def (p_type
)
556 * Return a string for the type.
559 p_section(int section
, int opcode
) {
560 const struct res_sym
*symbols
;
564 symbols
= __p_update_section_syms
;
567 symbols
= __p_default_section_syms
;
570 return (sym_ntos(symbols
, section
, (int *)0));
574 * Return a mnemonic for class.
578 return (sym_ntos(__p_class_syms
, class, (int *)0));
580 libresolv_hidden_def (p_class
)
583 * Return a mnemonic for an option
586 p_option(u_long option
) {
587 static char nbuf
[40];
590 case RES_INIT
: return "init";
591 case RES_DEBUG
: return "debug";
592 case RES_USEVC
: return "use-vc";
593 case RES_IGNTC
: return "igntc";
594 case RES_RECURSE
: return "recurs";
595 case RES_DEFNAMES
: return "defnam";
596 case RES_STAYOPEN
: return "styopn";
597 case RES_DNSRCH
: return "dnsrch";
598 case RES_INSECURE1
: return "insecure1";
599 case RES_INSECURE2
: return "insecure2";
600 case RES_NOALIASES
: return "noaliases";
601 case DEPRECATED_RES_USE_INET6
: return "inet6";
602 case RES_ROTATE
: return "rotate";
603 case RES_USE_EDNS0
: return "edns0";
604 case RES_SNGLKUP
: return "single-request";
605 case RES_SNGLKUPREOP
: return "single-request-reopen";
606 case RES_USE_DNSSEC
: return "dnssec";
607 case RES_NOTLDQUERY
: return "no-tld-query";
608 /* XXX nonreentrant */
609 default: sprintf(nbuf
, "?0x%lx?", (u_long
)option
);
613 libresolv_hidden_def (p_option
)
616 * Return a mnemonic for a time to live.
619 p_time(u_int32_t value
) {
620 static char nbuf
[40]; /* XXX nonreentrant */
622 if (ns_format_ttl(value
, nbuf
, sizeof nbuf
) < 0)
623 sprintf(nbuf
, "%u", value
);
628 * Return a string for the rcode.
632 return (sym_ntos(__p_rcode_syms
, rcode
, (int *)0));
634 libresolv_hidden_def (p_rcode
)
637 * routines to convert between on-the-wire RR format and zone file format.
638 * Does not contain conversion to/from decimal degrees; divide or multiply
639 * by 60*60*1000 for that.
642 static const unsigned int poweroften
[10]=
643 { 1, 10, 100, 1000, 10000, 100000,
644 1000000,10000000,100000000,1000000000};
646 /* takes an XeY precision/size value, returns a string representation. */
648 precsize_ntoa (u_int8_t prec
)
650 static char retbuf
[sizeof "90000000.00"]; /* XXX nonreentrant */
652 int mantissa
, exponent
;
654 mantissa
= (int)((prec
>> 4) & 0x0f) % 10;
655 exponent
= (int)((prec
>> 0) & 0x0f) % 10;
657 val
= mantissa
* poweroften
[exponent
];
659 (void) sprintf(retbuf
, "%ld.%.2ld", val
/100, val
%100);
663 /* converts ascii size/precision X * 10**Y(cm) to 0xXY. moves pointer. */
665 precsize_aton (const char **strptr
)
667 unsigned int mval
= 0, cmval
= 0;
676 mval
= mval
* 10 + (*cp
++ - '0');
678 if (*cp
== '.') { /* centimeters */
681 cmval
= (*cp
++ - '0') * 10;
683 cmval
+= (*cp
++ - '0');
687 cmval
= (mval
* 100) + cmval
;
689 for (exponent
= 0; exponent
< 9; exponent
++)
690 if (cmval
< poweroften
[exponent
+1])
693 mantissa
= cmval
/ poweroften
[exponent
];
697 retval
= (mantissa
<< 4) | exponent
;
704 /* converts ascii lat/lon to unsigned encoded 32-bit number. moves pointer. */
706 latlon2ul (const char **latlonstrptr
, int *which
)
710 int deg
= 0, min
= 0, secs
= 0, secsfrac
= 0;
715 deg
= deg
* 10 + (*cp
++ - '0');
724 min
= min
* 10 + (*cp
++ - '0');
733 secs
= secs
* 10 + (*cp
++ - '0');
735 if (*cp
== '.') { /* decimal seconds */
738 secsfrac
= (*cp
++ - '0') * 100;
740 secsfrac
+= (*cp
++ - '0') * 10;
742 secsfrac
+= (*cp
++ - '0');
748 while (!isspace(*cp
)) /* if any trailing garbage */
758 retval
= ((unsigned)1<<31)
759 + (((((deg
* 60) + min
) * 60) + secs
) * 1000)
764 retval
= ((unsigned)1<<31)
765 - (((((deg
* 60) + min
) * 60) + secs
) * 1000)
769 retval
= 0; /* invalid value -- indicates error */
776 *which
= 1; /* latitude */
780 *which
= 2; /* longitude */
783 *which
= 0; /* error */
787 cp
++; /* skip the hemisphere */
789 while (!isspace(*cp
)) /* if any trailing garbage */
792 while (isspace(*cp
)) /* move to next field */
800 /* converts a zone file representation in a string to an RDATA on-the-wire
803 loc_aton (const char *ascii
, u_char
*binary
)
805 const char *cp
, *maxcp
;
808 u_int32_t latit
= 0, longit
= 0, alt
= 0;
809 u_int32_t lltemp1
= 0, lltemp2
= 0;
810 int altmeters
= 0, altfrac
= 0, altsign
= 1;
811 u_int8_t hp
= 0x16; /* default = 1e6 cm = 10000.00m = 10km */
812 u_int8_t vp
= 0x13; /* default = 1e3 cm = 10.00m */
813 u_int8_t siz
= 0x12; /* default = 1e2 cm = 1.00m */
814 int which1
= 0, which2
= 0;
817 maxcp
= cp
+ strlen(ascii
);
819 lltemp1
= latlon2ul(&cp
, &which1
);
821 lltemp2
= latlon2ul(&cp
, &which2
);
823 switch (which1
+ which2
) {
824 case 3: /* 1 + 2, the only valid combination */
825 if ((which1
== 1) && (which2
== 2)) { /* normal case */
828 } else if ((which1
== 2) && (which2
== 1)) { /* reversed */
831 } else { /* some kind of brokenness */
835 default: /* we didn't get one of each */
849 altmeters
= altmeters
* 10 + (*cp
++ - '0');
851 if (*cp
== '.') { /* decimal meters */
854 altfrac
= (*cp
++ - '0') * 10;
856 altfrac
+= (*cp
++ - '0');
861 alt
= (10000000 + (altsign
* (altmeters
* 100 + altfrac
)));
863 while (!isspace(*cp
) && (cp
< maxcp
)) /* if trailing garbage or m */
866 while (isspace(*cp
) && (cp
< maxcp
))
872 siz
= precsize_aton(&cp
);
874 while (!isspace(*cp
) && (cp
< maxcp
)) /* if trailing garbage or m */
877 while (isspace(*cp
) && (cp
< maxcp
))
883 hp
= precsize_aton(&cp
);
885 while (!isspace(*cp
) && (cp
< maxcp
)) /* if trailing garbage or m */
888 while (isspace(*cp
) && (cp
< maxcp
))
894 vp
= precsize_aton(&cp
);
899 *bcp
++ = (u_int8_t
) 0; /* version byte */
907 return (16); /* size of RR in octets */
910 /* takes an on-the-wire LOC RR and formats it in a human readable format. */
912 loc_ntoa (const u_char
*binary
, char *ascii
)
914 static const char error
[] = "?";
915 static char tmpbuf
[sizeof
916 "1000 60 60.000 N 1000 60 60.000 W -12345678.00m 90000000.00m 90000000.00m 90000000.00m"];
917 const u_char
*cp
= binary
;
919 int latdeg
, latmin
, latsec
, latsecfrac
;
920 int longdeg
, longmin
, longsec
, longsecfrac
;
921 char northsouth
, eastwest
;
922 int altmeters
, altfrac
, altsign
;
924 const u_int32_t referencealt
= 100000 * 100;
926 int32_t latval
, longval
, altval
;
928 u_int8_t sizeval
, hpval
, vpval
, versionval
;
930 char *sizestr
, *hpstr
, *vpstr
;
938 (void) sprintf(ascii
, "; error: unknown LOC RR version");
948 latval
= (templ
- ((unsigned)1<<31));
951 longval
= (templ
- ((unsigned)1<<31));
954 if (templ
< referencealt
) { /* below WGS 84 spheroid */
955 altval
= referencealt
- templ
;
958 altval
= templ
- referencealt
;
968 latsecfrac
= latval
% 1000;
969 latval
= latval
/ 1000;
970 latsec
= latval
% 60;
971 latval
= latval
/ 60;
972 latmin
= latval
% 60;
973 latval
= latval
/ 60;
982 longsecfrac
= longval
% 1000;
983 longval
= longval
/ 1000;
984 longsec
= longval
% 60;
985 longval
= longval
/ 60;
986 longmin
= longval
% 60;
987 longval
= longval
/ 60;
990 altfrac
= altval
% 100;
991 altmeters
= (altval
/ 100) * altsign
;
993 if ((sizestr
= strdup(precsize_ntoa(sizeval
))) == NULL
)
994 sizestr
= (char *) error
;
995 if ((hpstr
= strdup(precsize_ntoa(hpval
))) == NULL
)
996 hpstr
= (char *) error
;
997 if ((vpstr
= strdup(precsize_ntoa(vpval
))) == NULL
)
998 vpstr
= (char *) error
;
1001 "%d %.2d %.2d.%.3d %c %d %.2d %.2d.%.3d %c %d.%.2dm %sm %sm %sm",
1002 latdeg
, latmin
, latsec
, latsecfrac
, northsouth
,
1003 longdeg
, longmin
, longsec
, longsecfrac
, eastwest
,
1004 altmeters
, altfrac
, sizestr
, hpstr
, vpstr
);
1006 if (sizestr
!= (char *) error
)
1008 if (hpstr
!= (char *) error
)
1010 if (vpstr
!= (char *) error
)
1015 libresolv_hidden_def (loc_ntoa
)
1018 /* Return the number of DNS hierarchy levels in the name. */
1020 dn_count_labels(const char *name
) {
1024 for (i
= 0, count
= 0; i
< len
; i
++) {
1025 /* XXX need to check for \. or use named's nlabels(). */
1030 /* don't count initial wildcard */
1035 /* don't count the null label for root. */
1036 /* if terminating '.' not found, must adjust */
1037 /* count to include last label */
1038 if (len
> 0 && name
[len
-1] != '.')
1042 libresolv_hidden_def (__dn_count_labels
)
1046 * Make dates expressed in seconds-since-Jan-1-1970 easy to read.
1047 * SIG records are required to be printed like this, by the Secure DNS RFC.
1050 p_secstodate (u_long secs
) {
1051 /* XXX nonreentrant */
1052 static char output
[15]; /* YYYYMMDDHHMMSS and null */
1053 time_t clock
= secs
;
1057 time
= __gmtime_r(&clock
, &timebuf
);
1058 time
->tm_year
+= 1900;
1060 sprintf(output
, "%04d%02d%02d%02d%02d%02d",
1061 time
->tm_year
, time
->tm_mon
, time
->tm_mday
,
1062 time
->tm_hour
, time
->tm_min
, time
->tm_sec
);
1065 libresolv_hidden_def (__p_secstodate
)