2 * ++Copyright++ 1985, 1990, 1993
4 * Copyright (c) 1985, 1990, 1993
5 * The Regents of the University of California. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. All advertising materials mentioning features or use of this software
16 * must display the following acknowledgement:
17 * This product includes software developed by the University of
18 * California, Berkeley and its contributors.
19 * 4. Neither the name of the University nor the names of its contributors
20 * may be used to endorse or promote products derived from this software
21 * without specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * Portions Copyright (c) 1993 by Digital Equipment Corporation.
37 * Permission to use, copy, modify, and distribute this software for any
38 * purpose with or without fee is hereby granted, provided that the above
39 * copyright notice and this permission notice appear in all copies, and that
40 * the name of Digital Equipment Corporation not be used in advertising or
41 * publicity pertaining to distribution of the document or software without
42 * specific, written prior permission.
44 * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
45 * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
46 * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
47 * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
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
53 * Portions Copyright (c) 1995 by International Business Machines, Inc.
55 * International Business Machines, Inc. (hereinafter called IBM) grants
56 * permission under its copyrights to use, copy, modify, and distribute this
57 * Software with or without fee, provided that the above copyright notice and
58 * all paragraphs of this notice appear in all copies, and that the name of IBM
59 * not be used in connection with the marketing of any product incorporating
60 * the Software or modifications thereof, without specific, written prior
63 * To the extent it has a right to do so, IBM grants an immunity from suit
64 * under its patents, if any, for the use, sale or manufacture of products to
65 * the extent that such products are used for performing Domain Name System
66 * dynamic updates in TCP/IP networks by means of the Software. No immunity is
67 * granted for any product per se or for any other function of any product.
69 * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES,
70 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
71 * PARTICULAR PURPOSE. IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL,
72 * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING
73 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN
74 * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES.
78 #if defined(LIBC_SCCS) && !defined(lint)
79 static char sccsid[] = "@(#)res_debug.c 8.1 (Berkeley) 6/4/93";
80 static char rcsid[] = "$Id$";
81 #endif /* LIBC_SCCS and not lint */
83 #include <sys/param.h>
84 #include <sys/types.h>
85 #include <sys/socket.h>
86 #include <netinet/in.h>
87 #include <arpa/inet.h>
88 #include <arpa/nameser.h>
96 #if defined(BSD) && (BSD >= 199103) && defined(AF_INET6)
100 # include "../conf/portability.h"
103 #if defined(USE_OPTIONS_H)
104 # include "../conf/options.h"
107 extern const char *_res_opcodes[];
108 extern const char *_res_resultcodes[];
110 /* XXX: we should use getservbyport() instead. */
115 static char nbuf[20];
118 case 5: return "rje";
119 case 7: return "echo";
120 case 9: return "discard";
121 case 11: return "systat";
122 case 13: return "daytime";
123 case 15: return "netstat";
124 case 17: return "qotd";
125 case 19: return "chargen";
126 case 20: return "ftp-data";
127 case 21: return "ftp";
128 case 23: return "telnet";
129 case 25: return "smtp";
130 case 37: return "time";
131 case 39: return "rlp";
132 case 42: return "name";
133 case 43: return "whois";
134 case 53: return "domain";
135 case 57: return "apts";
136 case 59: return "apfs";
137 case 67: return "bootps";
138 case 68: return "bootpc";
139 case 69: return "tftp";
140 case 77: return "rje";
141 case 79: return "finger";
142 case 87: return "link";
143 case 95: return "supdup";
144 case 100: return "newacct";
145 case 101: return "hostnames";
146 case 102: return "iso-tsap";
147 case 103: return "x400";
148 case 104: return "x400-snd";
149 case 105: return "csnet-ns";
150 case 109: return "pop-2";
151 case 111: return "sunrpc";
152 case 113: return "auth";
153 case 115: return "sftp";
154 case 117: return "uucp-path";
155 case 119: return "nntp";
156 case 121: return "erpc";
157 case 123: return "ntp";
158 case 133: return "statsrv";
159 case 136: return "profile";
160 case 144: return "NeWS";
161 case 161: return "snmp";
162 case 162: return "snmp-trap";
163 case 170: return "print-srv";
164 default: (void) sprintf(nbuf, "%d", wks); return (nbuf);
168 /* XXX: we should use getprotobynumber() instead. */
173 static char nbuf[20];
176 case 1: return "icmp";
177 case 2: return "igmp";
178 case 3: return "ggp";
180 case 6: return "tcp";
181 case 7: return "ucl";
182 case 8: return "egp";
183 case 9: return "igp";
184 case 11: return "nvp-II";
185 case 12: return "pup";
186 case 16: return "chaos";
187 case 17: return "udp";
188 default: (void) sprintf(nbuf, "%d", protonum); return (nbuf);
192 static const u_char *
193 do_rrset(msg, len, cp, cnt, pflag, file, hs)
195 const u_char *cp, *msg;
203 * Print answer records.
205 sflag = (_res.pfcode & pflag);
206 if (n = ntohs(cnt)) {
207 if ((!_res.pfcode) ||
208 ((sflag) && (_res.pfcode & RES_PRF_HEAD1)))
211 if ((!_res.pfcode) || sflag) {
212 cp = p_rr(cp, msg, file);
215 cp += __dn_skipname(cp, cp + MAXCDNAME);
219 dlen = _getshort((u_char*)cp);
223 if ((cp - msg) > len)
226 if ((!_res.pfcode) ||
227 ((sflag) && (_res.pfcode & RES_PRF_HEAD1)))
237 __fp_query(msg, stdout);
242 /* ultrix 4.0's packaging has some icky packaging. alias for it here.
243 * there is more junk of this kind over in res_comp.c.
254 * Print the current options.
255 * This is intended to be primarily a debugging routine.
258 __fp_resstat(statp, file)
259 struct __res_state *statp;
262 register u_long mask;
264 fprintf(file, ";; res options:");
267 for (mask = 1; mask != 0; mask <<= 1)
268 if (statp->options & mask)
269 fprintf(file, " %s", p_option(mask));
274 * Print the contents of a query.
275 * This is intended to be primarily a debugging routine.
278 __fp_nquery(msg, len, file)
283 register const u_char *cp, *endMark;
284 register const HEADER *hp;
287 if ((_res.options & RES_INIT) == 0 && res_init() == -1)
290 #define TruncTest(x) if (x > endMark) goto trunc
291 #define ErrorTest(x) if (x == NULL) goto error
294 * Print header fields.
299 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_HEADX) || hp->rcode) {
300 fprintf(file, ";; ->>HEADER<<- opcode: %s, status: %s, id: %d",
301 _res_opcodes[hp->opcode],
302 _res_resultcodes[hp->rcode],
306 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_HEADX))
308 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_HEAD2)) {
309 fprintf(file, "; flags:");
311 fprintf(file, " qr");
313 fprintf(file, " aa");
315 fprintf(file, " tc");
317 fprintf(file, " rd");
319 fprintf(file, " ra");
321 fprintf(file, " UNUSED-BIT-ON");
323 fprintf(file, " ad");
325 fprintf(file, " cd");
327 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_HEAD1)) {
328 fprintf(file, "; Ques: %d", ntohs(hp->qdcount));
329 fprintf(file, ", Ans: %d", ntohs(hp->ancount));
330 fprintf(file, ", Auth: %d", ntohs(hp->nscount));
331 fprintf(file, ", Addit: %d", ntohs(hp->arcount));
333 if ((!_res.pfcode) || (_res.pfcode &
334 (RES_PRF_HEADX | RES_PRF_HEAD2 | RES_PRF_HEAD1))) {
338 * Print question records.
340 if (n = ntohs(hp->qdcount)) {
341 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_QUES))
342 fprintf(file, ";; QUESTIONS:\n");
344 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_QUES))
345 fprintf(file, ";;\t");
347 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_QUES))
348 cp = p_cdnname(cp, msg, len, file);
353 if ((n = dn_expand(msg, msg+len, cp, name,
361 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_QUES))
362 fprintf(file, ", type = %s",
363 __p_type(_getshort((u_char*)cp)));
366 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_QUES))
367 fprintf(file, ", class = %s\n",
368 __p_class(_getshort((u_char*)cp)));
370 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_QUES))
375 * Print authoritative answer records
378 cp = do_rrset(msg, len, cp, hp->ancount, RES_PRF_ANS, file,
383 * print name server records
386 cp = do_rrset(msg, len, cp, hp->nscount, RES_PRF_AUTH, file,
387 ";; AUTHORITY RECORDS:\n");
392 * print additional records
394 cp = do_rrset(msg, len, cp, hp->arcount, RES_PRF_ADD, file,
395 ";; ADDITIONAL RECORDS:\n");
399 fprintf(file, "\n;; ...truncated\n");
402 fprintf(file, "\n;; ...malformed\n");
406 __fp_query(msg, file)
410 fp_nquery(msg, PACKETSZ, file);
414 __p_cdnname(cp, msg, len, file)
415 const u_char *cp, *msg;
422 if ((n = dn_expand(msg, msg + len, cp, name, sizeof name)) < 0)
432 __p_cdname(cp, msg, file)
433 const u_char *cp, *msg;
436 return (p_cdnname(cp, msg, PACKETSZ, file));
440 /* Return a fully-qualified domain name from a compressed name (with
444 __p_fqnname(cp, msg, msglen, name, namelen)
445 const u_char *cp, *msg;
452 if ((n = dn_expand(msg, cp + msglen, cp, name, namelen)) < 0)
454 newlen = strlen (name);
455 if (newlen == 0 || name[newlen - 1] != '.')
456 if (newlen+1 >= namelen) /* Lack space for final dot */
459 strcpy(name + newlen, ".");
463 /* XXX: the rest of these functions need to become length-limited, too. (vix)
467 __p_fqname(cp, msg, file)
468 const u_char *cp, *msg;
474 n = __p_fqnname(cp, msg, MAXCDNAME, name, sizeof name);
482 * Print resource record fields in human readable form.
485 __p_rr(cp, msg, file)
486 const u_char *cp, *msg;
489 int type, class, dlen, n, c;
490 struct in_addr inaddr;
491 const u_char *cp1, *cp2;
495 char rrname[MAXDNAME]; /* The fqdn of this RR */
496 char base64_key[MAX_KEY_BASE64];
498 if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
499 __set_h_errno (NETDB_INTERNAL);
502 cp = __p_fqnname(cp, msg, MAXCDNAME, rrname, sizeof rrname);
504 return (NULL); /* compression error */
507 type = _getshort((u_char*)cp);
509 class = _getshort((u_char*)cp);
511 tmpttl = _getlong((u_char*)cp);
513 dlen = _getshort((u_char*)cp);
516 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_TTLID))
517 fprintf(file, "\t%lu", (u_long)tmpttl);
518 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_CLASS))
519 fprintf(file, "\t%s", __p_class(class));
520 fprintf(file, "\t%s", __p_type(type));
522 * Print type specific data, if appropriate
529 bcopy(cp, (char *)&inaddr, INADDRSZ);
531 fprintf(file, "\t%s", inet_ntoa(inaddr));
533 } else if (dlen == 7) {
538 address = inet_ntoa(inaddr);
540 protocol = *(u_char*)cp;
541 cp += sizeof (u_char);
542 port = _getshort((u_char*)cp);
544 fprintf(file, "\t%s\t; proto %d, port %d",
545 address, protocol, port);
559 if ((cp = p_fqname(cp, msg, file)) == NULL)
566 (void) fputs("\t\"", file);
567 if ((n = (unsigned char) *cp++) != 0) {
568 for (c = n; c > 0 && cp < cp2; c--) {
569 if (strchr("\n\"\\", *cp))
570 (void) putc('\\', file);
571 (void) putc(*cp++, file);
575 if (cp < cp2 && (n = (unsigned char) *cp++) != 0) {
576 (void) fputs ("\t\"", file);
577 for (c = n; c > 0 && cp < cp2; c--) {
578 if (strchr("\n\"\\", *cp))
579 (void) putc('\\', file);
580 (void) putc(*cp++, file);
583 } else if (type == T_HINFO) {
584 (void) fputs("\"?\"", file);
585 fprintf(file, "\n;; *** Warning *** OS-type missing");
591 if ((cp = p_fqname(cp, msg, file)) == NULL)
594 if ((cp = p_fqname(cp, msg, file)) == NULL)
597 t = _getlong((u_char*)cp); cp += INT32SZ;
598 fprintf(file, "\t\t\t%lu\t; serial\n", (u_long)t);
599 t = _getlong((u_char*)cp); cp += INT32SZ;
600 fprintf(file, "\t\t\t%lu\t; refresh (%s)\n",
601 (u_long)t, __p_time(t));
602 t = _getlong((u_char*)cp); cp += INT32SZ;
603 fprintf(file, "\t\t\t%lu\t; retry (%s)\n",
604 (u_long)t, __p_time(t));
605 t = _getlong((u_char*)cp); cp += INT32SZ;
606 fprintf(file, "\t\t\t%lu\t; expire (%s)\n",
607 (u_long)t, __p_time(t));
608 t = _getlong((u_char*)cp); cp += INT32SZ;
609 fprintf(file, "\t\t\t%lu )\t; minimum (%s)",
610 (u_long)t, __p_time(t));
616 fprintf(file, "\t%d ", _getshort((u_char*)cp));
618 if ((cp = p_fqname(cp, msg, file)) == NULL)
623 fprintf(file, "\t%d ", _getshort((u_char*)cp));
625 if ((cp = p_fqname(cp, msg, file)) == NULL)
628 if ((cp = p_fqname(cp, msg, file)) == NULL)
634 (void) fputs("\t\"", file);
635 if ((n = (unsigned char) *cp++) != 0) {
636 for (c = n; c > 0 && cp < cp2; c--) {
637 if (strchr("\n\"\\", *cp))
638 (void) putc('\\', file);
639 (void) putc(*cp++, file);
646 (void) putc('\t', file);
650 if (n = (unsigned char) *cp++) {
651 for (c = n; c > 0 && cp < cp2; c--) {
652 if (strchr("\n\"\\", *cp))
653 (void) putc('\\', file);
654 (void) putc(*cp++, file);
664 (void) fprintf(file, "\t%s", inet_nsap_ntoa(dlen, cp, NULL));
669 char t[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"];
671 fprintf(file, "\t%s", inet_ntop(AF_INET6, cp, t, sizeof t));
679 (void) fprintf(file, "\t%s", loc_ntoa(cp, t));
685 u_int order, preference;
687 order = _getshort(cp); cp += INT16SZ;
688 preference = _getshort(cp); cp += INT16SZ;
689 fprintf(file, "\t%u %u ",order, preference);
692 fprintf(file,"\"%.*s\" ", (int)n, cp);
696 fprintf(file,"\"%.*s\" ", (int)n, cp);
700 fprintf(file,"\"%.*s\" ", (int)n, cp);
702 if ((cp = p_fqname(cp, msg, file)) == NULL)
708 u_int priority, weight, port;
710 priority = _getshort(cp); cp += INT16SZ;
711 weight = _getshort(cp); cp += INT16SZ;
712 port = _getshort(cp); cp += INT16SZ;
713 fprintf(file, "\t%u %u %u ", priority, weight, port);
714 if ((cp = p_fqname(cp, msg, file)) == NULL)
722 if ((cp = p_fqname(cp, msg, file)) == NULL)
725 if ((cp = p_fqname(cp, msg, file)) == NULL)
731 fputs((char *)cp, file);
738 fprintf(file, "\t%u", _getlong((u_char*)cp));
744 if (dlen < INT32SZ + 1)
746 bcopy(cp, (char *)&inaddr, INADDRSZ);
748 fprintf(file, "\t%s %s ( ",
751 cp += sizeof (u_char);
754 while (cp < cp1 + dlen) {
759 fputs("\n\t\t\t", file);
762 fputs(dewks(n), file);
774 keyflags = _getshort(cp);
776 fprintf(file,"0x%04x", keyflags ); /* flags */
777 fprintf(file," %u", *cp++); /* protocol */
778 fprintf(file," %u (", *cp++); /* algorithm */
780 n = b64_ntop(cp, (cp1 + dlen) - cp,
781 base64_key, sizeof base64_key);
782 for (c = 0; c < n; ++c) {
784 fprintf(file, "\n\t");
785 putc(base64_key[c], file); /* public key data */
790 fprintf(file, "\t; BAD BASE64");
796 type = _getshort((u_char*)cp);
798 fprintf(file, " %s", p_type(type));
799 fprintf(file, "\t%d", *cp++); /* algorithm */
800 /* Check label value and print error if wrong. */
802 c = dn_count_labels (rrname);
804 fprintf(file, "\t; LABELS WRONG (%d should be %d)\n\t",
807 n = _getlong((u_char*)cp);
808 if ((u_int32_t) n != tmpttl)
809 fprintf(file, " %u", n);
812 fprintf(file, " (\n\t%s",
813 __p_secstodate(_getlong((u_char*)cp)));
816 fprintf(file, " %s", __p_secstodate(_getlong((u_char*)cp)));
819 fprintf(file," %u ", _getshort((u_char*)cp));
822 cp = p_fqname(cp, msg, file);
823 n = b64_ntop(cp, (cp1 + dlen) - cp,
824 base64_key, sizeof base64_key);
825 for (c = 0; c < n; c++) {
827 fprintf (file, "\n\t");
828 putc(base64_key[c], file); /* signature */
833 fprintf(file, "\t; BAD BASE64");
838 #ifdef ALLOW_T_UNSPEC
845 if (dlen < NumBytes) NumBytes = dlen;
846 fprintf(file, "\tFirst %d bytes of hex data:",
848 for (i = 0, DataPtr = cp; i < NumBytes; i++, DataPtr++)
849 fprintf(file, " %x", *DataPtr);
853 #endif /* ALLOW_T_UNSPEC */
856 fprintf(file, "\t?%d?", type);
860 fprintf(file, "\t; dlen=%d, ttl %s\n", dlen, __p_time(tmpttl));
864 if (cp - cp1 != dlen) {
866 ";; packet size error (found %lu, dlen was %d)\n",
867 (unsigned long) (cp - cp1), dlen);
874 * Names of RR classes and qclasses. Classes and qclasses are the same, except
875 * that C_ANY is a qclass but not a class. (You can ask for records of class
876 * C_ANY, but you can't have any records of that class in the database.)
878 const struct res_sym __p_class_syms[] = {
888 * Names of RR types and qtypes. Types and qtypes are the same, except
889 * that T_ANY is a qtype but not a type. (You can ask for records of type
890 * T_ANY, but you can't have any records of that type in the database.)
892 const struct res_sym __p_type_syms[] = {
893 {T_A, "A", "address"},
894 {T_NS, "NS", "name server"},
895 {T_MD, "MD", "mail destination (deprecated)"},
896 {T_MF, "MF", "mail forwarder (deprecated)"},
897 {T_CNAME, "CNAME", "canonical name"},
898 {T_SOA, "SOA", "start of authority"},
899 {T_MB, "MB", "mailbox"},
900 {T_MG, "MG", "mail group member"},
901 {T_MR, "MR", "mail rename"},
902 {T_NULL, "NULL", "null"},
903 {T_WKS, "WKS", "well-known service (deprecated)"},
904 {T_PTR, "PTR", "domain name pointer"},
905 {T_HINFO, "HINFO", "host information"},
906 {T_MINFO, "MINFO", "mailbox information"},
907 {T_MX, "MX", "mail exchanger"},
908 {T_TXT, "TXT", "text"},
909 {T_RP, "RP", "responsible person"},
910 {T_AFSDB, "AFSDB", "DCE or AFS server"},
911 {T_X25, "X25", "X25 address"},
912 {T_ISDN, "ISDN", "ISDN address"},
913 {T_RT, "RT", "router"},
914 {T_NSAP, "NSAP", "nsap address"},
915 {T_NSAP_PTR, "NSAP_PTR", "domain name pointer"},
916 {T_SIG, "SIG", "signature"},
917 {T_KEY, "KEY", "key"},
918 {T_PX, "PX", "mapping information"},
919 {T_GPOS, "GPOS", "geographical position (withdrawn)"},
920 {T_AAAA, "AAAA", "IPv6 address"},
921 {T_LOC, "LOC", "location"},
922 {T_NXT, "NXT", "next valid name (unimplemented)"},
923 {T_EID, "EID", "endpoint identifier (unimplemented)"},
924 {T_NIMLOC, "NIMLOC", "NIMROD locator (unimplemented)"},
925 {T_SRV, "SRV", "server selection"},
926 {T_ATMA, "ATMA", "ATM address (unimplemented)"},
927 {T_IXFR, "IXFR", "incremental zone transfer"},
928 {T_AXFR, "AXFR", "zone transfer"},
929 {T_MAILB, "MAILB", "mailbox-related data (deprecated)"},
930 {T_MAILA, "MAILA", "mail agent (deprecated)"},
931 {T_UINFO, "UINFO", "user information (nonstandard)"},
932 {T_UID, "UID", "user ID (nonstandard)"},
933 {T_GID, "GID", "group ID (nonstandard)"},
934 {T_NAPTR, "NAPTR", "URN Naming Authority"},
935 #ifdef ALLOW_T_UNSPEC
936 {T_UNSPEC, "UNSPEC", "unspecified data (nonstandard)"},
937 #endif /* ALLOW_T_UNSPEC */
938 {T_ANY, "ANY", "\"any\""},
943 __sym_ston(syms, name, success)
944 const struct res_sym *syms;
949 /* Changed to prevent warning. --drepper@gnu */
950 for (; syms->name != 0; syms++) {
952 for (NULL; syms->name != 0; syms++) {
954 if (strcasecmp (name, syms->name) == 0) {
957 return (syms->number);
962 return (syms->number); /* The default value. */
966 __sym_ntos(syms, number, success)
967 const struct res_sym *syms;
971 static char unname[20];
974 /* Changed to prevent warning. --drepper@gnu */
975 for (; syms->name != 0; syms++) {
977 for (NULL; syms->name != 0; syms++) {
979 if (number == syms->number) {
986 sprintf (unname, "%d", number);
994 __sym_ntop(syms, number, success)
995 const struct res_sym *syms;
999 static char unname[20];
1002 /* Changed to prevent warning. --drepper@gnu */
1003 for (; syms->name != 0; syms++) {
1005 for (NULL; syms->name != 0; syms++) {
1007 if (number == syms->number) {
1010 return (syms->humanname);
1013 sprintf(unname, "%d", number);
1020 * Return a string for the type
1026 return (__sym_ntos (__p_type_syms, type, (int *)0));
1030 * Return a mnemonic for class
1036 return (__sym_ntos (__p_class_syms, class, (int *)0));
1040 * Return a mnemonic for an option
1046 static char nbuf[40];
1049 case RES_INIT: return "init";
1050 case RES_DEBUG: return "debug";
1051 case RES_AAONLY: return "aaonly(unimpl)";
1052 case RES_USEVC: return "usevc";
1053 case RES_PRIMARY: return "primry(unimpl)";
1054 case RES_IGNTC: return "igntc";
1055 case RES_RECURSE: return "recurs";
1056 case RES_DEFNAMES: return "defnam";
1057 case RES_STAYOPEN: return "styopn";
1058 case RES_DNSRCH: return "dnsrch";
1059 case RES_INSECURE1: return "insecure1";
1060 case RES_INSECURE2: return "insecure2";
1061 default: sprintf(nbuf, "?0x%lx?", (u_long)option);
1067 * Return a mnemonic for a time to live
1073 static char nbuf[60];
1074 int secs, mins, hours, days;
1078 strcpy(nbuf, "0 secs");
1091 #define PLURALIZE(x) x, (x == 1) ? "" : "s"
1094 (void)sprintf(p, "%d day%s", PLURALIZE(days));
1100 (void)sprintf(p, "%d hour%s", PLURALIZE(hours));
1106 (void)sprintf(p, "%d min%s", PLURALIZE(mins));
1109 if (secs || ! (days || hours || mins)) {
1110 if (days || hours || mins)
1112 (void)sprintf(p, "%d sec%s", PLURALIZE(secs));
1118 * routines to convert between on-the-wire RR format and zone file format.
1119 * Does not contain conversion to/from decimal degrees; divide or multiply
1120 * by 60*60*1000 for that.
1123 static unsigned int poweroften[10] = {1, 10, 100, 1000, 10000, 100000,
1124 1000000,10000000,100000000,1000000000};
1126 /* takes an XeY precision/size value, returns a string representation. */
1131 static char retbuf[sizeof "90000000.00"];
1133 int mantissa, exponent;
1135 mantissa = (int)((prec >> 4) & 0x0f) % 10;
1136 exponent = (int)((prec >> 0) & 0x0f) % 10;
1138 val = mantissa * poweroften[exponent];
1140 (void) sprintf(retbuf, "%ld.%.2ld", val/100, val%100);
1144 /* converts ascii size/precision X * 10**Y(cm) to 0xXY. moves pointer. */
1146 precsize_aton(strptr)
1149 u_int8_t retval = 0;
1155 while (isdigit(*cp)) {
1157 mantissa = *cp - '0';
1167 mantissa = *cp - '0';
1174 mantissa = *cp - '0';
1188 retval = (mantissa << 4) | exponent;
1193 /* converts ascii lat/lon to unsigned encoded 32-bit number. moves pointer. */
1195 latlon2ul(latlonstrptr,which)
1196 char **latlonstrptr;
1201 int deg = 0, min = 0, secs = 0, secsfrac = 0;
1205 while (isdigit(*cp))
1206 deg = deg * 10 + (*cp++ - '0');
1208 while (isspace(*cp))
1211 if (!(isdigit(*cp)))
1214 while (isdigit(*cp))
1215 min = min * 10 + (*cp++ - '0');
1217 while (isspace(*cp))
1220 if (!(isdigit(*cp)))
1223 while (isdigit(*cp))
1224 secs = secs * 10 + (*cp++ - '0');
1226 if (*cp == '.') { /* decimal seconds */
1229 secsfrac = (*cp++ - '0') * 100;
1231 secsfrac += (*cp++ - '0') * 10;
1233 secsfrac += (*cp++ - '0');
1239 while (!isspace(*cp)) /* if any trailing garbage */
1242 while (isspace(*cp))
1249 retval = ((unsigned)1<<31)
1250 + (((((deg * 60) + min) * 60) + secs) * 1000)
1255 retval = ((unsigned)1<<31)
1256 - (((((deg * 60) + min) * 60) + secs) * 1000)
1260 retval = 0; /* invalid value -- indicates error */
1267 *which = 1; /* latitude */
1271 *which = 2; /* longitude */
1274 *which = 0; /* error */
1278 cp++; /* skip the hemisphere */
1280 while (!isspace(*cp)) /* if any trailing garbage */
1283 while (isspace(*cp)) /* move to next field */
1291 /* converts a zone file representation in a string to an RDATA on-the-wire
1292 * representation. */
1294 loc_aton(ascii, binary)
1298 const char *cp, *maxcp;
1301 u_int32_t latit = 0, longit = 0, alt = 0;
1302 u_int32_t lltemp1 = 0, lltemp2 = 0;
1303 int altmeters = 0, altfrac = 0, altsign = 1;
1304 u_int8_t hp = 0x16; /* default = 1e6 cm = 10000.00m = 10km */
1305 u_int8_t vp = 0x13; /* default = 1e3 cm = 10.00m */
1306 u_int8_t siz = 0x12; /* default = 1e2 cm = 1.00m */
1307 int which1 = 0, which2 = 0;
1310 maxcp = cp + strlen(ascii);
1312 lltemp1 = latlon2ul(&cp, &which1);
1314 lltemp2 = latlon2ul(&cp, &which2);
1316 switch (which1 + which2) {
1317 case 3: /* 1 + 2, the only valid combination */
1318 if ((which1 == 1) && (which2 == 2)) { /* normal case */
1321 } else if ((which1 == 2) && (which2 == 1)) { /* reversed */
1324 } else { /* some kind of brokenness */
1328 default: /* we didn't get one of each */
1341 while (isdigit(*cp))
1342 altmeters = altmeters * 10 + (*cp++ - '0');
1344 if (*cp == '.') { /* decimal meters */
1347 altfrac = (*cp++ - '0') * 10;
1349 altfrac += (*cp++ - '0');
1354 alt = (10000000 + (altsign * (altmeters * 100 + altfrac)));
1356 while (!isspace(*cp) && (cp < maxcp)) /* if trailing garbage or m */
1359 while (isspace(*cp) && (cp < maxcp))
1365 siz = precsize_aton(&cp);
1367 while (!isspace(*cp) && (cp < maxcp)) /* if trailing garbage or m */
1370 while (isspace(*cp) && (cp < maxcp))
1376 hp = precsize_aton(&cp);
1378 while (!isspace(*cp) && (cp < maxcp)) /* if trailing garbage or m */
1381 while (isspace(*cp) && (cp < maxcp))
1387 vp = precsize_aton(&cp);
1392 *bcp++ = (u_int8_t) 0; /* version byte */
1397 PUTLONG(longit,bcp);
1400 return (16); /* size of RR in octets */
1403 /* takes an on-the-wire LOC RR and formats it in a human readable format. */
1405 loc_ntoa(binary, ascii)
1406 const u_char *binary;
1409 static char *error = "?";
1410 register const u_char *cp = binary;
1412 int latdeg, latmin, latsec, latsecfrac;
1413 int longdeg, longmin, longsec, longsecfrac;
1414 char northsouth, eastwest;
1415 int altmeters, altfrac, altsign;
1417 const int referencealt = 100000 * 100;
1419 int32_t latval, longval, altval;
1421 u_int8_t sizeval, hpval, vpval, versionval;
1423 char *sizestr, *hpstr, *vpstr;
1428 sprintf(ascii, "; error: unknown LOC RR version");
1438 latval = (templ - ((unsigned)1<<31));
1441 longval = (templ - ((unsigned)1<<31));
1444 if (templ < (u_int32_t) referencealt) { /* below WGS 84 spheroid */
1445 altval = referencealt - templ;
1448 altval = templ - referencealt;
1458 latsecfrac = latval % 1000;
1459 latval = latval / 1000;
1460 latsec = latval % 60;
1461 latval = latval / 60;
1462 latmin = latval % 60;
1463 latval = latval / 60;
1472 longsecfrac = longval % 1000;
1473 longval = longval / 1000;
1474 longsec = longval % 60;
1475 longval = longval / 60;
1476 longmin = longval % 60;
1477 longval = longval / 60;
1480 altfrac = altval % 100;
1481 altmeters = (altval / 100) * altsign;
1483 if ((sizestr = strdup(precsize_ntoa(sizeval))) == NULL)
1485 if ((hpstr = strdup(precsize_ntoa(hpval))) == NULL)
1487 if ((vpstr = strdup(precsize_ntoa(vpval))) == NULL)
1491 "%d %.2d %.2d.%.3d %c %d %.2d %.2d.%.3d %c %d.%.2dm %sm %sm %sm",
1492 latdeg, latmin, latsec, latsecfrac, northsouth,
1493 longdeg, longmin, longsec, longsecfrac, eastwest,
1494 altmeters, altfrac, sizestr, hpstr, vpstr);
1496 if (sizestr != error)
1507 /* Return the number of DNS hierarchy levels in the name. */
1509 __dn_count_labels(name)
1516 for(i = 0, count = 0; i < len; i++) {
1521 /* don't count initial wildcard */
1526 /* don't count the null label for root. */
1527 /* if terminating '.' not found, must adjust */
1528 /* count to include last label */
1529 if (len > 0 && name[len-1] != '.')
1536 * Make dates expressed in seconds-since-Jan-1-1970 easy to read.
1537 * SIG records are required to be printed like this, by the Secure DNS RFC.
1540 __p_secstodate (secs)
1543 static char output[15]; /* YYYYMMDDHHMMSS and null */
1544 time_t clock = secs;
1547 __gmtime_r(&clock, &time);
1548 time.tm_year += 1900;
1550 sprintf(output, "%04d%02d%02d%02d%02d%02d",
1551 time.tm_year, time.tm_mon, time.tm_mday,
1552 time.tm_hour, time.tm_min, time.tm_sec);