Annotation of src/lib/libc/resolv/res_debug.c, Revision 1.13
1.13 ! abs 1: /* $NetBSD: res_debug.c,v 1.12 2012/03/13 21:13:43 christos Exp $ */
1.11 christos 2:
3: /*
4: * Portions Copyright (C) 2004, 2005, 2008, 2009 Internet Systems Consortium, Inc. ("ISC")
5: * Portions Copyright (C) 1996-2003 Internet Software Consortium.
6: *
7: * Permission to use, copy, modify, and/or distribute this software for any
8: * purpose with or without fee is hereby granted, provided that the above
9: * copyright notice and this permission notice appear in all copies.
10: *
11: * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
12: * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
13: * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
14: * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
15: * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
16: * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
17: * PERFORMANCE OF THIS SOFTWARE.
18: */
1.1 christos 19:
20: /*
21: * Copyright (c) 1985
22: * The Regents of the University of California. All rights reserved.
1.11 christos 23: *
1.1 christos 24: * Redistribution and use in source and binary forms, with or without
25: * modification, are permitted provided that the following conditions
26: * are met:
27: * 1. Redistributions of source code must retain the above copyright
28: * notice, this list of conditions and the following disclaimer.
29: * 2. Redistributions in binary form must reproduce the above copyright
30: * notice, this list of conditions and the following disclaimer in the
31: * documentation and/or other materials provided with the distribution.
32: * 3. All advertising materials mentioning features or use of this software
33: * must display the following acknowledgement:
34: * This product includes software developed by the University of
35: * California, Berkeley and its contributors.
36: * 4. Neither the name of the University nor the names of its contributors
37: * may be used to endorse or promote products derived from this software
38: * without specific prior written permission.
1.11 christos 39: *
1.1 christos 40: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
41: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
44: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50: * SUCH DAMAGE.
51: */
52:
53: /*
54: * Portions Copyright (c) 1993 by Digital Equipment Corporation.
1.11 christos 55: *
1.1 christos 56: * Permission to use, copy, modify, and distribute this software for any
57: * purpose with or without fee is hereby granted, provided that the above
58: * copyright notice and this permission notice appear in all copies, and that
59: * the name of Digital Equipment Corporation not be used in advertising or
60: * publicity pertaining to distribution of the document or software without
61: * specific, written prior permission.
1.11 christos 62: *
1.1 christos 63: * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
64: * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
65: * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
66: * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
67: * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
68: * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
69: * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
70: * SOFTWARE.
71: */
72:
73: /*
74: * Portions Copyright (c) 1995 by International Business Machines, Inc.
75: *
76: * International Business Machines, Inc. (hereinafter called IBM) grants
77: * permission under its copyrights to use, copy, modify, and distribute this
78: * Software with or without fee, provided that the above copyright notice and
79: * all paragraphs of this notice appear in all copies, and that the name of IBM
80: * not be used in connection with the marketing of any product incorporating
81: * the Software or modifications thereof, without specific, written prior
82: * permission.
83: *
84: * To the extent it has a right to do so, IBM grants an immunity from suit
85: * under its patents, if any, for the use, sale or manufacture of products to
86: * the extent that such products are used for performing Domain Name System
87: * dynamic updates in TCP/IP networks by means of the Software. No immunity is
88: * granted for any product per se or for any other function of any product.
89: *
90: * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES,
91: * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
92: * PARTICULAR PURPOSE. IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL,
93: * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING
94: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN
95: * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES.
96: */
97:
1.4 christos 98: #include <sys/cdefs.h>
1.1 christos 99: #if defined(LIBC_SCCS) && !defined(lint)
1.4 christos 100: #ifdef notdef
1.1 christos 101: static const char sccsid[] = "@(#)res_debug.c 8.1 (Berkeley) 6/4/93";
1.11 christos 102: static const char rcsid[] = "Id: res_debug.c,v 1.19 2009/02/26 11:20:20 tbox Exp";
1.4 christos 103: #else
1.13 ! abs 104: __RCSID("$NetBSD: res_debug.c,v 1.12 2012/03/13 21:13:43 christos Exp $");
1.4 christos 105: #endif
1.1 christos 106: #endif /* LIBC_SCCS and not lint */
107:
108: #include "port_before.h"
109:
1.5 christos 110: #include "namespace.h"
1.1 christos 111: #include <sys/types.h>
112: #include <sys/param.h>
113: #include <sys/socket.h>
114:
115: #include <netinet/in.h>
116: #include <arpa/inet.h>
117: #include <arpa/nameser.h>
118:
1.12 christos 119: #include <assert.h>
1.1 christos 120: #include <ctype.h>
121: #include <errno.h>
122: #include <math.h>
123: #include <netdb.h>
124: #include <resolv.h>
1.8 christos 125: #include <resolv_mt.h>
1.1 christos 126: #include <stdio.h>
127: #include <stdlib.h>
128: #include <string.h>
129: #include <time.h>
130:
131: #include "port_after.h"
132:
133: #ifdef SPRINTF_CHAR
134: # define SPRINTF(x) strlen(sprintf/**/x)
135: #else
136: # define SPRINTF(x) sprintf x
137: #endif
138:
139: extern const char *_res_opcodes[];
140: extern const char *_res_sectioncodes[];
141:
1.6 christos 142: #if 0
1.5 christos 143: #ifdef __weak_alias
144: __weak_alias(res_pquery,__res_pquery)
145: __weak_alias(res_nametoclass,__res_nametoclass)
146: __weak_alias(res_nametotype,__res_nametotype)
147: #endif
1.6 christos 148: #endif
1.5 christos 149:
150: #ifndef _LIBC
1.8 christos 151: /*%
1.1 christos 152: * Print the current options.
153: */
154: void
155: fp_resstat(const res_state statp, FILE *file) {
156: u_long mask;
157:
158: fprintf(file, ";; res options:");
159: for (mask = 1; mask != 0U; mask <<= 1)
160: if (statp->options & mask)
161: fprintf(file, " %s", p_option(mask));
162: putc('\n', file);
163: }
1.5 christos 164: #endif
1.1 christos 165:
166: static void
167: do_section(const res_state statp,
168: ns_msg *handle, ns_sect section,
169: int pflag, FILE *file)
170: {
171: int n, sflag, rrnum;
172: static int buflen = 2048;
173: char *buf;
174: ns_opcode opcode;
175: ns_rr rr;
176:
177: /*
178: * Print answer records.
179: */
1.12 christos 180: sflag = (int)(statp->pfcode & pflag);
1.1 christos 181: if (statp->pfcode && !sflag)
182: return;
183:
1.2 christos 184: buf = malloc((size_t)buflen);
1.1 christos 185: if (buf == NULL) {
186: fprintf(file, ";; memory allocation failure\n");
187: return;
188: }
189:
190: opcode = (ns_opcode) ns_msg_getflag(*handle, ns_f_opcode);
191: rrnum = 0;
192: for (;;) {
193: if (ns_parserr(handle, section, rrnum, &rr)) {
194: if (errno != ENODEV)
195: fprintf(file, ";; ns_parserr: %s\n",
196: strerror(errno));
197: else if (rrnum > 0 && sflag != 0 &&
198: (statp->pfcode & RES_PRF_HEAD1))
199: putc('\n', file);
200: goto cleanup;
201: }
202: if (rrnum == 0 && sflag != 0 && (statp->pfcode & RES_PRF_HEAD1))
203: fprintf(file, ";; %s SECTION:\n",
204: p_section(section, opcode));
205: if (section == ns_s_qd)
206: fprintf(file, ";;\t%s, type = %s, class = %s\n",
207: ns_rr_name(rr),
208: p_type(ns_rr_type(rr)),
209: p_class(ns_rr_class(rr)));
210: else if (section == ns_s_ar && ns_rr_type(rr) == ns_t_opt) {
1.12 christos 211: size_t rdatalen, ttl;
212: uint16_t optcode, optlen;
213:
214: rdatalen = ns_rr_rdlen(rr);
215: ttl = ns_rr_ttl(rr);
1.10 christos 216:
1.1 christos 217: fprintf(file,
1.12 christos 218: "; EDNS: version: %zu, udp=%u, flags=%04zx\n",
1.1 christos 219: (ttl>>16)&0xff, ns_rr_class(rr), ttl&0xffff);
1.10 christos 220:
221: while (rdatalen >= 4) {
222: const u_char *cp = ns_rr_rdata(rr);
223: int i;
224:
225: GETSHORT(optcode, cp);
226: GETSHORT(optlen, cp);
227:
228: if (optcode == NS_OPT_NSID) {
229: fputs("; NSID: ", file);
230: if (optlen == 0) {
231: fputs("; NSID\n", file);
232: } else {
233: fputs("; NSID: ", file);
234: for (i = 0; i < optlen; i++)
235: fprintf(file, "%02x ",
236: cp[i]);
237: fputs(" (",file);
238: for (i = 0; i < optlen; i++)
239: fprintf(file, "%c",
240: isprint(cp[i])?
241: cp[i] : '.');
242: fputs(")\n", file);
243: }
244: } else {
245: if (optlen == 0) {
246: fprintf(file, "; OPT=%u\n",
247: optcode);
248: } else {
249: fprintf(file, "; OPT=%u: ",
250: optcode);
251: for (i = 0; i < optlen; i++)
252: fprintf(file, "%02x ",
253: cp[i]);
254: fputs(" (",file);
255: for (i = 0; i < optlen; i++)
256: fprintf(file, "%c",
257: isprint(cp[i]) ?
258: cp[i] : '.');
259: fputs(")\n", file);
260: }
261: }
262: rdatalen -= 4 + optlen;
263: }
1.1 christos 264: } else {
265: n = ns_sprintrr(handle, &rr, NULL, NULL,
1.2 christos 266: buf, (u_int)buflen);
1.1 christos 267: if (n < 0) {
268: if (errno == ENOSPC) {
269: free(buf);
270: buf = NULL;
271: if (buflen < 131072)
1.2 christos 272: buf = malloc((size_t)(buflen += 1024));
1.1 christos 273: if (buf == NULL) {
274: fprintf(file,
1.11 christos 275: ";; memory allocation failure\n");
1.1 christos 276: return;
277: }
278: continue;
279: }
280: fprintf(file, ";; ns_sprintrr: %s\n",
281: strerror(errno));
282: goto cleanup;
283: }
284: fputs(buf, file);
285: fputc('\n', file);
286: }
287: rrnum++;
288: }
289: cleanup:
290: if (buf != NULL)
291: free(buf);
292: }
293:
1.8 christos 294: /*%
1.1 christos 295: * Print the contents of a query.
296: * This is intended to be primarily a debugging routine.
297: */
298: void
299: res_pquery(const res_state statp, const u_char *msg, int len, FILE *file) {
300: ns_msg handle;
301: int qdcount, ancount, nscount, arcount;
302: u_int opcode, rcode, id;
303:
304: if (ns_initparse(msg, len, &handle) < 0) {
305: fprintf(file, ";; ns_initparse: %s\n", strerror(errno));
306: return;
307: }
308: opcode = ns_msg_getflag(handle, ns_f_opcode);
309: rcode = ns_msg_getflag(handle, ns_f_rcode);
310: id = ns_msg_id(handle);
311: qdcount = ns_msg_count(handle, ns_s_qd);
312: ancount = ns_msg_count(handle, ns_s_an);
313: nscount = ns_msg_count(handle, ns_s_ns);
314: arcount = ns_msg_count(handle, ns_s_ar);
315:
316: /*
317: * Print header fields.
318: */
319: if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEADX) || rcode)
320: fprintf(file,
321: ";; ->>HEADER<<- opcode: %s, status: %s, id: %d\n",
1.2 christos 322: _res_opcodes[opcode], p_rcode((int)rcode), id);
1.1 christos 323: if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEADX))
324: putc(';', file);
325: if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEAD2)) {
326: fprintf(file, "; flags:");
327: if (ns_msg_getflag(handle, ns_f_qr))
328: fprintf(file, " qr");
329: if (ns_msg_getflag(handle, ns_f_aa))
330: fprintf(file, " aa");
331: if (ns_msg_getflag(handle, ns_f_tc))
332: fprintf(file, " tc");
333: if (ns_msg_getflag(handle, ns_f_rd))
334: fprintf(file, " rd");
335: if (ns_msg_getflag(handle, ns_f_ra))
336: fprintf(file, " ra");
337: if (ns_msg_getflag(handle, ns_f_z))
338: fprintf(file, " ??");
339: if (ns_msg_getflag(handle, ns_f_ad))
340: fprintf(file, " ad");
341: if (ns_msg_getflag(handle, ns_f_cd))
342: fprintf(file, " cd");
343: }
344: if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEAD1)) {
345: fprintf(file, "; %s: %d",
1.2 christos 346: p_section(ns_s_qd, (int)opcode), qdcount);
1.1 christos 347: fprintf(file, ", %s: %d",
1.2 christos 348: p_section(ns_s_an, (int)opcode), ancount);
1.1 christos 349: fprintf(file, ", %s: %d",
1.2 christos 350: p_section(ns_s_ns, (int)opcode), nscount);
1.1 christos 351: fprintf(file, ", %s: %d",
1.2 christos 352: p_section(ns_s_ar, (int)opcode), arcount);
1.1 christos 353: }
1.11 christos 354: if ((!statp->pfcode) || (statp->pfcode &
1.1 christos 355: (RES_PRF_HEADX | RES_PRF_HEAD2 | RES_PRF_HEAD1))) {
356: putc('\n',file);
357: }
358: /*
359: * Print the various sections.
360: */
361: do_section(statp, &handle, ns_s_qd, RES_PRF_QUES, file);
362: do_section(statp, &handle, ns_s_an, RES_PRF_ANS, file);
363: do_section(statp, &handle, ns_s_ns, RES_PRF_AUTH, file);
364: do_section(statp, &handle, ns_s_ar, RES_PRF_ADD, file);
365: if (qdcount == 0 && ancount == 0 &&
366: nscount == 0 && arcount == 0)
367: putc('\n', file);
368: }
369:
370: const u_char *
371: p_cdnname(const u_char *cp, const u_char *msg, int len, FILE *file) {
372: char name[MAXDNAME];
373: int n;
374:
1.12 christos 375: if ((n = dn_expand(msg, msg + len, cp, name, (int)sizeof name)) < 0)
1.1 christos 376: return (NULL);
377: if (name[0] == '\0')
378: putc('.', file);
379: else
380: fputs(name, file);
381: return (cp + n);
382: }
383:
384: const u_char *
385: p_cdname(const u_char *cp, const u_char *msg, FILE *file) {
386: return (p_cdnname(cp, msg, PACKETSZ, file));
387: }
388:
1.8 christos 389: /*%
390: * Return a fully-qualified domain name from a compressed name (with
1.1 christos 391: length supplied). */
392:
393: const u_char *
1.13 ! abs 394: p_fqnname(const u_char *cp, const u_char *msg, int msglen, char *name,
! 395: int namelen)
1.1 christos 396: {
1.12 christos 397: int n;
398: size_t newlen;
1.1 christos 399:
400: if ((n = dn_expand(msg, cp + msglen, cp, name, namelen)) < 0)
401: return (NULL);
402: newlen = strlen(name);
403: if (newlen == 0 || name[newlen - 1] != '.') {
1.12 christos 404: if ((int)newlen + 1 >= namelen) /*%< Lack space for final dot */
1.1 christos 405: return (NULL);
406: else
407: strcpy(name + newlen, ".");
408: }
409: return (cp + n);
410: }
411:
412: /* XXX: the rest of these functions need to become length-limited, too. */
413:
414: const u_char *
415: p_fqname(const u_char *cp, const u_char *msg, FILE *file) {
416: char name[MAXDNAME];
417: const u_char *n;
418:
1.12 christos 419: n = p_fqnname(cp, msg, MAXCDNAME, name, (int)sizeof name);
1.1 christos 420: if (n == NULL)
421: return (NULL);
422: fputs(name, file);
423: return (n);
424: }
425:
1.8 christos 426: /*%
1.1 christos 427: * Names of RR classes and qclasses. Classes and qclasses are the same, except
428: * that C_ANY is a qclass but not a class. (You can ask for records of class
429: * C_ANY, but you can't have any records of that class in the database.)
430: */
431: const struct res_sym __p_class_syms[] = {
432: {C_IN, "IN", (char *)0},
433: {C_CHAOS, "CH", (char *)0},
434: {C_CHAOS, "CHAOS", (char *)0},
435: {C_HS, "HS", (char *)0},
436: {C_HS, "HESIOD", (char *)0},
437: {C_ANY, "ANY", (char *)0},
438: {C_NONE, "NONE", (char *)0},
439: {C_IN, (char *)0, (char *)0}
440: };
441:
1.8 christos 442: /*%
1.1 christos 443: * Names of message sections.
444: */
445: const struct res_sym __p_default_section_syms[] = {
446: {ns_s_qd, "QUERY", (char *)0},
447: {ns_s_an, "ANSWER", (char *)0},
448: {ns_s_ns, "AUTHORITY", (char *)0},
449: {ns_s_ar, "ADDITIONAL", (char *)0},
1.11 christos 450: {0, (char *)0, (char *)0}
1.1 christos 451: };
452:
453: const struct res_sym __p_update_section_syms[] = {
454: {S_ZONE, "ZONE", (char *)0},
455: {S_PREREQ, "PREREQUISITE", (char *)0},
456: {S_UPDATE, "UPDATE", (char *)0},
457: {S_ADDT, "ADDITIONAL", (char *)0},
1.11 christos 458: {0, (char *)0, (char *)0}
1.1 christos 459: };
460:
461: const struct res_sym __p_key_syms[] = {
462: {NS_ALG_MD5RSA, "RSA", "RSA KEY with MD5 hash"},
463: {NS_ALG_DH, "DH", "Diffie Hellman"},
464: {NS_ALG_DSA, "DSA", "Digital Signature Algorithm"},
465: {NS_ALG_EXPIRE_ONLY, "EXPIREONLY", "No algorithm"},
466: {NS_ALG_PRIVATE_OID, "PRIVATE", "Algorithm obtained from OID"},
467: {0, NULL, NULL}
468: };
469:
470: const struct res_sym __p_cert_syms[] = {
471: {cert_t_pkix, "PKIX", "PKIX (X.509v3) Certificate"},
472: {cert_t_spki, "SPKI", "SPKI certificate"},
473: {cert_t_pgp, "PGP", "PGP certificate"},
474: {cert_t_url, "URL", "URL Private"},
475: {cert_t_oid, "OID", "OID Private"},
476: {0, NULL, NULL}
477: };
478:
1.8 christos 479: /*%
1.1 christos 480: * Names of RR types and qtypes. Types and qtypes are the same, except
481: * that T_ANY is a qtype but not a type. (You can ask for records of type
482: * T_ANY, but you can't have any records of that type in the database.)
483: */
484: const struct res_sym __p_type_syms[] = {
485: {ns_t_a, "A", "address"},
486: {ns_t_ns, "NS", "name server"},
487: {ns_t_md, "MD", "mail destination (deprecated)"},
488: {ns_t_mf, "MF", "mail forwarder (deprecated)"},
489: {ns_t_cname, "CNAME", "canonical name"},
490: {ns_t_soa, "SOA", "start of authority"},
491: {ns_t_mb, "MB", "mailbox"},
492: {ns_t_mg, "MG", "mail group member"},
493: {ns_t_mr, "MR", "mail rename"},
494: {ns_t_null, "NULL", "null"},
495: {ns_t_wks, "WKS", "well-known service (deprecated)"},
496: {ns_t_ptr, "PTR", "domain name pointer"},
497: {ns_t_hinfo, "HINFO", "host information"},
498: {ns_t_minfo, "MINFO", "mailbox information"},
499: {ns_t_mx, "MX", "mail exchanger"},
500: {ns_t_txt, "TXT", "text"},
501: {ns_t_rp, "RP", "responsible person"},
502: {ns_t_afsdb, "AFSDB", "DCE or AFS server"},
503: {ns_t_x25, "X25", "X25 address"},
504: {ns_t_isdn, "ISDN", "ISDN address"},
505: {ns_t_rt, "RT", "router"},
506: {ns_t_nsap, "NSAP", "nsap address"},
507: {ns_t_nsap_ptr, "NSAP_PTR", "domain name pointer"},
508: {ns_t_sig, "SIG", "signature"},
509: {ns_t_key, "KEY", "key"},
510: {ns_t_px, "PX", "mapping information"},
511: {ns_t_gpos, "GPOS", "geographical position (withdrawn)"},
512: {ns_t_aaaa, "AAAA", "IPv6 address"},
513: {ns_t_loc, "LOC", "location"},
514: {ns_t_nxt, "NXT", "next valid name (unimplemented)"},
515: {ns_t_eid, "EID", "endpoint identifier (unimplemented)"},
516: {ns_t_nimloc, "NIMLOC", "NIMROD locator (unimplemented)"},
517: {ns_t_srv, "SRV", "server selection"},
518: {ns_t_atma, "ATMA", "ATM address (unimplemented)"},
1.11 christos 519: {ns_t_naptr, "NAPTR", "naptr"},
520: {ns_t_kx, "KX", "key exchange"},
521: {ns_t_cert, "CERT", "certificate"},
522: {ns_t_a6, "A", "IPv6 address (experminental)"},
523: {ns_t_dname, "DNAME", "non-terminal redirection"},
524: {ns_t_opt, "OPT", "opt"},
525: {ns_t_apl, "apl", "apl"},
526: {ns_t_ds, "DS", "delegation signer"},
527: {ns_t_sshfp, "SSFP", "SSH fingerprint"},
528: {ns_t_ipseckey, "IPSECKEY", "IPSEC key"},
529: {ns_t_rrsig, "RRSIG", "rrsig"},
530: {ns_t_nsec, "NSEC", "nsec"},
531: {ns_t_dnskey, "DNSKEY", "DNS key"},
532: {ns_t_dhcid, "DHCID", "dynamic host configuration identifier"},
533: {ns_t_nsec3, "NSEC3", "nsec3"},
534: {ns_t_nsec3param, "NSEC3PARAM", "NSEC3 parameters"},
535: {ns_t_hip, "HIP", "host identity protocol"},
536: {ns_t_spf, "SPF", "sender policy framework"},
1.1 christos 537: {ns_t_tkey, "TKEY", "tkey"},
538: {ns_t_tsig, "TSIG", "transaction signature"},
539: {ns_t_ixfr, "IXFR", "incremental zone transfer"},
540: {ns_t_axfr, "AXFR", "zone transfer"},
541: {ns_t_zxfr, "ZXFR", "compressed zone transfer"},
542: {ns_t_mailb, "MAILB", "mailbox-related data (deprecated)"},
543: {ns_t_maila, "MAILA", "mail agent (deprecated)"},
544: {ns_t_naptr, "NAPTR", "URN Naming Authority"},
545: {ns_t_kx, "KX", "Key Exchange"},
546: {ns_t_cert, "CERT", "Certificate"},
547: {ns_t_a6, "A6", "IPv6 Address"},
548: {ns_t_dname, "DNAME", "dname"},
549: {ns_t_sink, "SINK", "Kitchen Sink (experimental)"},
550: {ns_t_opt, "OPT", "EDNS Options"},
551: {ns_t_any, "ANY", "\"any\""},
1.11 christos 552: {ns_t_dlv, "DLV", "DNSSEC look-aside validation"},
1.1 christos 553: {0, NULL, NULL}
554: };
555:
1.8 christos 556: /*%
1.1 christos 557: * Names of DNS rcodes.
558: */
559: const struct res_sym __p_rcode_syms[] = {
560: {ns_r_noerror, "NOERROR", "no error"},
561: {ns_r_formerr, "FORMERR", "format error"},
562: {ns_r_servfail, "SERVFAIL", "server failed"},
563: {ns_r_nxdomain, "NXDOMAIN", "no such domain name"},
564: {ns_r_notimpl, "NOTIMP", "not implemented"},
565: {ns_r_refused, "REFUSED", "refused"},
566: {ns_r_yxdomain, "YXDOMAIN", "domain name exists"},
567: {ns_r_yxrrset, "YXRRSET", "rrset exists"},
568: {ns_r_nxrrset, "NXRRSET", "rrset doesn't exist"},
569: {ns_r_notauth, "NOTAUTH", "not authoritative"},
570: {ns_r_notzone, "NOTZONE", "Not in zone"},
571: {ns_r_max, "", ""},
572: {ns_r_badsig, "BADSIG", "bad signature"},
573: {ns_r_badkey, "BADKEY", "bad key"},
574: {ns_r_badtime, "BADTIME", "bad time"},
575: {0, NULL, NULL}
576: };
577:
578: int
579: sym_ston(const struct res_sym *syms, const char *name, int *success) {
1.3 christos 580: for (; syms->name != 0; syms++) {
1.1 christos 581: if (strcasecmp (name, syms->name) == 0) {
582: if (success)
583: *success = 1;
584: return (syms->number);
585: }
586: }
587: if (success)
588: *success = 0;
1.8 christos 589: return (syms->number); /*%< The default value. */
1.1 christos 590: }
591:
592: const char *
593: sym_ntos(const struct res_sym *syms, int number, int *success) {
1.8 christos 594: char *unname = sym_ntos_unname;
1.1 christos 595:
1.2 christos 596: for (; syms->name != 0; syms++) {
1.1 christos 597: if (number == syms->number) {
598: if (success)
599: *success = 1;
600: return (syms->name);
601: }
602: }
603:
1.8 christos 604: sprintf(unname, "%d", number); /*%< XXX nonreentrant */
1.1 christos 605: if (success)
606: *success = 0;
607: return (unname);
608: }
609:
610: const char *
611: sym_ntop(const struct res_sym *syms, int number, int *success) {
1.8 christos 612: char *unname = sym_ntop_unname;
1.1 christos 613:
1.2 christos 614: for (; syms->name != 0; syms++) {
1.1 christos 615: if (number == syms->number) {
616: if (success)
617: *success = 1;
618: return (syms->humanname);
619: }
620: }
1.8 christos 621: sprintf(unname, "%d", number); /*%< XXX nonreentrant */
1.1 christos 622: if (success)
623: *success = 0;
624: return (unname);
625: }
626:
1.8 christos 627: /*%
1.1 christos 628: * Return a string for the type.
629: */
630: const char *
631: p_type(int type) {
632: int success;
633: const char *result;
634: static char typebuf[20];
635:
636: result = sym_ntos(__p_type_syms, type, &success);
637: if (success)
638: return (result);
1.7 christos 639: if (type < 0 || type > 0xffff)
1.1 christos 640: return ("BADTYPE");
641: sprintf(typebuf, "TYPE%d", type);
642: return (typebuf);
643: }
644:
1.8 christos 645: /*%
1.1 christos 646: * Return a string for the type.
647: */
648: const char *
649: p_section(int section, int opcode) {
650: const struct res_sym *symbols;
651:
652: switch (opcode) {
653: case ns_o_update:
654: symbols = __p_update_section_syms;
655: break;
656: default:
657: symbols = __p_default_section_syms;
658: break;
659: }
660: return (sym_ntos(symbols, section, (int *)0));
661: }
662:
1.8 christos 663: /*%
1.1 christos 664: * Return a mnemonic for class.
665: */
666: const char *
667: p_class(int class) {
668: int success;
669: const char *result;
670: static char classbuf[20];
671:
672: result = sym_ntos(__p_class_syms, class, &success);
673: if (success)
674: return (result);
1.7 christos 675: if (class < 0 || class > 0xffff)
1.1 christos 676: return ("BADCLASS");
677: sprintf(classbuf, "CLASS%d", class);
678: return (classbuf);
679: }
680:
1.8 christos 681: /*%
1.1 christos 682: * Return a mnemonic for an option
683: */
684: const char *
685: p_option(u_long option) {
1.8 christos 686: char *nbuf = p_option_nbuf;
1.1 christos 687:
688: switch (option) {
689: case RES_INIT: return "init";
690: case RES_DEBUG: return "debug";
691: case RES_AAONLY: return "aaonly(unimpl)";
692: case RES_USEVC: return "usevc";
693: case RES_PRIMARY: return "primry(unimpl)";
694: case RES_IGNTC: return "igntc";
695: case RES_RECURSE: return "recurs";
696: case RES_DEFNAMES: return "defnam";
697: case RES_STAYOPEN: return "styopn";
698: case RES_DNSRCH: return "dnsrch";
699: case RES_INSECURE1: return "insecure1";
700: case RES_INSECURE2: return "insecure2";
701: case RES_NOALIASES: return "noaliases";
702: case RES_USE_INET6: return "inet6";
1.8 christos 703: #ifdef RES_USE_EDNS0 /*%< KAME extension */
1.1 christos 704: case RES_USE_EDNS0: return "edns0";
1.10 christos 705: case RES_NSID: return "nsid";
1.1 christos 706: #endif
707: #ifdef RES_USE_DNAME
708: case RES_USE_DNAME: return "dname";
709: #endif
710: #ifdef RES_USE_DNSSEC
711: case RES_USE_DNSSEC: return "dnssec";
712: #endif
713: #ifdef RES_NOTLDQUERY
714: case RES_NOTLDQUERY: return "no-tld-query";
715: #endif
716: #ifdef RES_NO_NIBBLE2
717: case RES_NO_NIBBLE2: return "no-nibble2";
718: #endif
719: /* XXX nonreentrant */
720: default: sprintf(nbuf, "?0x%lx?", (u_long)option);
721: return (nbuf);
722: }
723: }
724:
1.8 christos 725: /*%
1.1 christos 726: * Return a mnemonic for a time to live.
727: */
728: const char *
729: p_time(u_int32_t value) {
1.8 christos 730: char *nbuf = p_time_nbuf;
1.1 christos 731:
1.2 christos 732: if (ns_format_ttl((u_long)value, nbuf, sizeof nbuf) < 0)
1.1 christos 733: sprintf(nbuf, "%u", value);
734: return (nbuf);
735: }
736:
1.8 christos 737: /*%
1.1 christos 738: * Return a string for the rcode.
739: */
740: const char *
741: p_rcode(int rcode) {
742: return (sym_ntos(__p_rcode_syms, rcode, (int *)0));
743: }
744:
1.8 christos 745: /*%
1.1 christos 746: * Return a string for a res_sockaddr_union.
747: */
748: const char *
749: p_sockun(union res_sockaddr_union u, char *buf, size_t size) {
750: char ret[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:123.123.123.123"];
751:
752: switch (u.sin.sin_family) {
753: case AF_INET:
1.12 christos 754: inet_ntop(AF_INET, &u.sin.sin_addr, ret, (socklen_t)sizeof ret);
1.1 christos 755: break;
756: #ifdef HAS_INET6_STRUCTS
757: case AF_INET6:
758: inet_ntop(AF_INET6, &u.sin6.sin6_addr, ret, sizeof ret);
759: break;
760: #endif
761: default:
762: sprintf(ret, "[af%d]", u.sin.sin_family);
763: break;
764: }
765: if (size > 0U) {
766: strncpy(buf, ret, size - 1);
767: buf[size - 1] = '0';
768: }
769: return (buf);
770: }
771:
1.8 christos 772: /*%
1.1 christos 773: * routines to convert between on-the-wire RR format and zone file format.
774: * Does not contain conversion to/from decimal degrees; divide or multiply
775: * by 60*60*1000 for that.
776: */
777:
778: static unsigned int poweroften[10] = {1, 10, 100, 1000, 10000, 100000,
779: 1000000,10000000,100000000,1000000000};
780:
1.8 christos 781: /*% takes an XeY precision/size value, returns a string representation. */
1.1 christos 782: static const char *
1.10 christos 783: precsize_ntoa(u_int32_t prec)
1.1 christos 784: {
1.8 christos 785: char *retbuf = precsize_ntoa_retbuf;
1.1 christos 786: unsigned long val;
787: int mantissa, exponent;
788:
789: mantissa = (int)((prec >> 4) & 0x0f) % 10;
790: exponent = (int)((prec >> 0) & 0x0f) % 10;
791:
792: val = mantissa * poweroften[exponent];
793:
794: (void) sprintf(retbuf, "%lu.%.2lu", val/100, val%100);
795: return (retbuf);
796: }
797:
1.8 christos 798: /*% converts ascii size/precision X * 10**Y(cm) to 0xXY. moves pointer. */
1.1 christos 799: static u_int8_t
800: precsize_aton(const char **strptr) {
801: unsigned int mval = 0, cmval = 0;
802: u_int8_t retval = 0;
803: const char *cp;
804: int exponent;
805: int mantissa;
806:
807: cp = *strptr;
808:
809: while (isdigit((unsigned char)*cp))
810: mval = mval * 10 + (*cp++ - '0');
811:
1.8 christos 812: if (*cp == '.') { /*%< centimeters */
1.1 christos 813: cp++;
814: if (isdigit((unsigned char)*cp)) {
815: cmval = (*cp++ - '0') * 10;
816: if (isdigit((unsigned char)*cp)) {
817: cmval += (*cp++ - '0');
818: }
819: }
820: }
821: cmval = (mval * 100) + cmval;
822:
823: for (exponent = 0; exponent < 9; exponent++)
824: if (cmval < poweroften[exponent+1])
825: break;
826:
827: mantissa = cmval / poweroften[exponent];
828: if (mantissa > 9)
829: mantissa = 9;
830:
831: retval = (mantissa << 4) | exponent;
832:
833: *strptr = cp;
834:
835: return (retval);
836: }
837:
1.8 christos 838: /*% converts ascii lat/lon to unsigned encoded 32-bit number. moves pointer. */
1.1 christos 839: static u_int32_t
840: latlon2ul(const char **latlonstrptr, int *which) {
841: const char *cp;
842: u_int32_t retval;
843: int deg = 0, min = 0, secs = 0, secsfrac = 0;
844:
845: cp = *latlonstrptr;
846:
847: while (isdigit((unsigned char)*cp))
848: deg = deg * 10 + (*cp++ - '0');
849:
850: while (isspace((unsigned char)*cp))
851: cp++;
852:
853: if (!(isdigit((unsigned char)*cp)))
854: goto fndhemi;
855:
856: while (isdigit((unsigned char)*cp))
857: min = min * 10 + (*cp++ - '0');
858:
859: while (isspace((unsigned char)*cp))
860: cp++;
861:
862: if (!(isdigit((unsigned char)*cp)))
863: goto fndhemi;
864:
865: while (isdigit((unsigned char)*cp))
866: secs = secs * 10 + (*cp++ - '0');
867:
1.8 christos 868: if (*cp == '.') { /*%< decimal seconds */
1.1 christos 869: cp++;
870: if (isdigit((unsigned char)*cp)) {
871: secsfrac = (*cp++ - '0') * 100;
872: if (isdigit((unsigned char)*cp)) {
873: secsfrac += (*cp++ - '0') * 10;
874: if (isdigit((unsigned char)*cp)) {
875: secsfrac += (*cp++ - '0');
876: }
877: }
878: }
879: }
880:
1.8 christos 881: while (!isspace((unsigned char)*cp)) /*%< if any trailing garbage */
1.1 christos 882: cp++;
883:
884: while (isspace((unsigned char)*cp))
885: cp++;
886:
887: fndhemi:
888: switch (*cp) {
889: case 'N': case 'n':
890: case 'E': case 'e':
891: retval = ((unsigned)1<<31)
892: + (((((deg * 60) + min) * 60) + secs) * 1000)
893: + secsfrac;
894: break;
895: case 'S': case 's':
896: case 'W': case 'w':
897: retval = ((unsigned)1<<31)
898: - (((((deg * 60) + min) * 60) + secs) * 1000)
899: - secsfrac;
900: break;
901: default:
1.8 christos 902: retval = 0; /*%< invalid value -- indicates error */
1.1 christos 903: break;
904: }
905:
906: switch (*cp) {
907: case 'N': case 'n':
908: case 'S': case 's':
1.8 christos 909: *which = 1; /*%< latitude */
1.1 christos 910: break;
911: case 'E': case 'e':
912: case 'W': case 'w':
1.8 christos 913: *which = 2; /*%< longitude */
1.1 christos 914: break;
915: default:
1.8 christos 916: *which = 0; /*%< error */
1.1 christos 917: break;
918: }
919:
1.8 christos 920: cp++; /*%< skip the hemisphere */
921: while (!isspace((unsigned char)*cp)) /*%< if any trailing garbage */
1.1 christos 922: cp++;
923:
1.8 christos 924: while (isspace((unsigned char)*cp)) /*%< move to next field */
1.1 christos 925: cp++;
926:
927: *latlonstrptr = cp;
928:
929: return (retval);
930: }
931:
1.8 christos 932: /*%
933: * converts a zone file representation in a string to an RDATA on-the-wire
1.1 christos 934: * representation. */
935: int
1.13 ! abs 936: loc_aton(const char *ascii, u_char *binary)
1.1 christos 937: {
938: const char *cp, *maxcp;
939: u_char *bcp;
940:
941: u_int32_t latit = 0, longit = 0, alt = 0;
942: u_int32_t lltemp1 = 0, lltemp2 = 0;
943: int altmeters = 0, altfrac = 0, altsign = 1;
1.8 christos 944: u_int8_t hp = 0x16; /*%< default = 1e6 cm = 10000.00m = 10km */
945: u_int8_t vp = 0x13; /*%< default = 1e3 cm = 10.00m */
946: u_int8_t siz = 0x12; /*%< default = 1e2 cm = 1.00m */
1.1 christos 947: int which1 = 0, which2 = 0;
948:
949: cp = ascii;
950: maxcp = cp + strlen(ascii);
951:
952: lltemp1 = latlon2ul(&cp, &which1);
953:
954: lltemp2 = latlon2ul(&cp, &which2);
955:
956: switch (which1 + which2) {
1.8 christos 957: case 3: /*%< 1 + 2, the only valid combination */
958: if ((which1 == 1) && (which2 == 2)) { /*%< normal case */
1.1 christos 959: latit = lltemp1;
960: longit = lltemp2;
1.8 christos 961: } else if ((which1 == 2) && (which2 == 1)) { /*%< reversed */
1.1 christos 962: longit = lltemp1;
963: latit = lltemp2;
1.8 christos 964: } else { /*%< some kind of brokenness */
1.1 christos 965: return (0);
966: }
967: break;
1.8 christos 968: default: /*%< we didn't get one of each */
1.1 christos 969: return (0);
970: }
971:
972: /* altitude */
973: if (*cp == '-') {
974: altsign = -1;
975: cp++;
976: }
1.11 christos 977:
1.1 christos 978: if (*cp == '+')
979: cp++;
980:
981: while (isdigit((unsigned char)*cp))
982: altmeters = altmeters * 10 + (*cp++ - '0');
983:
1.8 christos 984: if (*cp == '.') { /*%< decimal meters */
1.1 christos 985: cp++;
986: if (isdigit((unsigned char)*cp)) {
987: altfrac = (*cp++ - '0') * 10;
988: if (isdigit((unsigned char)*cp)) {
989: altfrac += (*cp++ - '0');
990: }
991: }
992: }
993:
994: alt = (10000000 + (altsign * (altmeters * 100 + altfrac)));
995:
1.8 christos 996: while (!isspace((unsigned char)*cp) && (cp < maxcp)) /*%< if trailing garbage or m */
1.1 christos 997: cp++;
998:
999: while (isspace((unsigned char)*cp) && (cp < maxcp))
1000: cp++;
1001:
1002: if (cp >= maxcp)
1003: goto defaults;
1004:
1005: siz = precsize_aton(&cp);
1.11 christos 1006:
1.8 christos 1007: while (!isspace((unsigned char)*cp) && (cp < maxcp)) /*%< if trailing garbage or m */
1.1 christos 1008: cp++;
1009:
1010: while (isspace((unsigned char)*cp) && (cp < maxcp))
1011: cp++;
1012:
1013: if (cp >= maxcp)
1014: goto defaults;
1015:
1016: hp = precsize_aton(&cp);
1017:
1.8 christos 1018: while (!isspace((unsigned char)*cp) && (cp < maxcp)) /*%< if trailing garbage or m */
1.1 christos 1019: cp++;
1020:
1021: while (isspace((unsigned char)*cp) && (cp < maxcp))
1022: cp++;
1023:
1024: if (cp >= maxcp)
1025: goto defaults;
1026:
1027: vp = precsize_aton(&cp);
1028:
1029: defaults:
1030:
1031: bcp = binary;
1.8 christos 1032: *bcp++ = (u_int8_t) 0; /*%< version byte */
1.1 christos 1033: *bcp++ = siz;
1034: *bcp++ = hp;
1035: *bcp++ = vp;
1036: PUTLONG(latit,bcp);
1037: PUTLONG(longit,bcp);
1038: PUTLONG(alt,bcp);
1.11 christos 1039:
1.8 christos 1040: return (16); /*%< size of RR in octets */
1.1 christos 1041: }
1042:
1.8 christos 1043: /*% takes an on-the-wire LOC RR and formats it in a human readable format. */
1.1 christos 1044: const char *
1.13 ! abs 1045: loc_ntoa(const u_char *binary, char *ascii)
1.1 christos 1046: {
1047: static const char *error = "?";
1048: static char tmpbuf[sizeof
1049: "1000 60 60.000 N 1000 60 60.000 W -12345678.00m 90000000.00m 90000000.00m 90000000.00m"];
1050: const u_char *cp = binary;
1051:
1052: int latdeg, latmin, latsec, latsecfrac;
1053: int longdeg, longmin, longsec, longsecfrac;
1054: char northsouth, eastwest;
1055: const char *altsign;
1056: int altmeters, altfrac;
1057:
1058: const u_int32_t referencealt = 100000 * 100;
1059:
1060: int32_t latval, longval, altval;
1061: u_int32_t templ;
1062: u_int8_t sizeval, hpval, vpval, versionval;
1.11 christos 1063:
1.1 christos 1064: char *sizestr, *hpstr, *vpstr;
1065:
1066: versionval = *cp++;
1067:
1068: if (ascii == NULL)
1069: ascii = tmpbuf;
1070:
1071: if (versionval) {
1072: (void) sprintf(ascii, "; error: unknown LOC RR version");
1073: return (ascii);
1074: }
1075:
1076: sizeval = *cp++;
1077:
1078: hpval = *cp++;
1079: vpval = *cp++;
1080:
1081: GETLONG(templ, cp);
1082: latval = (templ - ((unsigned)1<<31));
1083:
1084: GETLONG(templ, cp);
1085: longval = (templ - ((unsigned)1<<31));
1086:
1087: GETLONG(templ, cp);
1.8 christos 1088: if (templ < referencealt) { /*%< below WGS 84 spheroid */
1.1 christos 1089: altval = referencealt - templ;
1090: altsign = "-";
1091: } else {
1092: altval = templ - referencealt;
1093: altsign = "";
1094: }
1095:
1096: if (latval < 0) {
1097: northsouth = 'S';
1098: latval = -latval;
1099: } else
1100: northsouth = 'N';
1101:
1102: latsecfrac = latval % 1000;
1103: latval = latval / 1000;
1104: latsec = latval % 60;
1105: latval = latval / 60;
1106: latmin = latval % 60;
1107: latval = latval / 60;
1108: latdeg = latval;
1109:
1110: if (longval < 0) {
1111: eastwest = 'W';
1112: longval = -longval;
1113: } else
1114: eastwest = 'E';
1115:
1116: longsecfrac = longval % 1000;
1117: longval = longval / 1000;
1118: longsec = longval % 60;
1119: longval = longval / 60;
1120: longmin = longval % 60;
1121: longval = longval / 60;
1122: longdeg = longval;
1123:
1124: altfrac = altval % 100;
1125: altmeters = (altval / 100);
1126:
1.2 christos 1127: sizestr = strdup(precsize_ntoa((u_int32_t)sizeval));
1128: hpstr = strdup(precsize_ntoa((u_int32_t)hpval));
1129: vpstr = strdup(precsize_ntoa((u_int32_t)vpval));
1.1 christos 1130:
1131: sprintf(ascii,
1132: "%d %.2d %.2d.%.3d %c %d %.2d %.2d.%.3d %c %s%d.%.2dm %sm %sm %sm",
1133: latdeg, latmin, latsec, latsecfrac, northsouth,
1134: longdeg, longmin, longsec, longsecfrac, eastwest,
1135: altsign, altmeters, altfrac,
1136: (sizestr != NULL) ? sizestr : error,
1137: (hpstr != NULL) ? hpstr : error,
1138: (vpstr != NULL) ? vpstr : error);
1139:
1140: if (sizestr != NULL)
1141: free(sizestr);
1142: if (hpstr != NULL)
1143: free(hpstr);
1144: if (vpstr != NULL)
1145: free(vpstr);
1146:
1147: return (ascii);
1148: }
1149:
1150:
1.8 christos 1151: /*% Return the number of DNS hierarchy levels in the name. */
1.1 christos 1152: int
1153: dn_count_labels(const char *name) {
1.12 christos 1154: size_t len, i, count;
1.1 christos 1155:
1156: len = strlen(name);
1157: for (i = 0, count = 0; i < len; i++) {
1158: /* XXX need to check for \. or use named's nlabels(). */
1159: if (name[i] == '.')
1160: count++;
1161: }
1162:
1163: /* don't count initial wildcard */
1164: if (name[0] == '*')
1165: if (count)
1166: count--;
1167:
1168: /* don't count the null label for root. */
1169: /* if terminating '.' not found, must adjust */
1170: /* count to include last label */
1171: if (len > 0 && name[len-1] != '.')
1172: count++;
1.12 christos 1173: _DIAGASSERT(__type_fit(int, count));
1174: return (int)count;
1.1 christos 1175: }
1176:
1.8 christos 1177: /*%
1.11 christos 1178: * Make dates expressed in seconds-since-Jan-1-1970 easy to read.
1.1 christos 1179: * SIG records are required to be printed like this, by the Secure DNS RFC.
1180: */
1181: char *
1182: p_secstodate (u_long secs) {
1183: /* XXX nonreentrant */
1.8 christos 1184: char *output = p_secstodate_output;
1.2 christos 1185: time_t myclock = secs;
1186: struct tm *mytime;
1.1 christos 1187: #ifdef HAVE_TIME_R
1188: struct tm res;
1189:
1.2 christos 1190: mytime = gmtime_r(&myclock, &res);
1.1 christos 1191: #else
1.2 christos 1192: mytime = gmtime(&myclock);
1.1 christos 1193: #endif
1.2 christos 1194: mytime->tm_year += 1900;
1195: mytime->tm_mon += 1;
1.1 christos 1196: sprintf(output, "%04d%02d%02d%02d%02d%02d",
1.2 christos 1197: mytime->tm_year, mytime->tm_mon, mytime->tm_mday,
1198: mytime->tm_hour, mytime->tm_min, mytime->tm_sec);
1.1 christos 1199: return (output);
1200: }
1201:
1202: u_int16_t
1203: res_nametoclass(const char *buf, int *successp) {
1204: unsigned long result;
1205: char *endptr;
1206: int success;
1207:
1208: result = sym_ston(__p_class_syms, buf, &success);
1209: if (success)
1210: goto done;
1211:
1212: if (strncasecmp(buf, "CLASS", 5) != 0 ||
1213: !isdigit((unsigned char)buf[5]))
1214: goto done;
1215: errno = 0;
1216: result = strtoul(buf + 5, &endptr, 10);
1217: if (errno == 0 && *endptr == '\0' && result <= 0xffffU)
1218: success = 1;
1219: done:
1220: if (successp)
1221: *successp = success;
1.2 christos 1222: return (u_int16_t)(result);
1.1 christos 1223: }
1224:
1225: u_int16_t
1226: res_nametotype(const char *buf, int *successp) {
1227: unsigned long result;
1228: char *endptr;
1229: int success;
1230:
1231: result = sym_ston(__p_type_syms, buf, &success);
1232: if (success)
1233: goto done;
1234:
1235: if (strncasecmp(buf, "type", 4) != 0 ||
1236: !isdigit((unsigned char)buf[4]))
1237: goto done;
1238: errno = 0;
1239: result = strtoul(buf + 4, &endptr, 10);
1240: if (errno == 0 && *endptr == '\0' && result <= 0xffffU)
1241: success = 1;
1242: done:
1243: if (successp)
1244: *successp = success;
1.2 christos 1245: return (u_int16_t)(result);
1.1 christos 1246: }
1.8 christos 1247:
1248: /*! \file */
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