Annotation of src/lib/libc/resolv/res_debug.c, Revision 1.14
1.14 ! christos 1: /* $NetBSD: res_debug.c,v 1.13 2012/06/25 22:32:45 abs 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.
1.14 ! christos 32: * 3. Neither the name of the University nor the names of its contributors
1.1 christos 33: * may be used to endorse or promote products derived from this software
34: * without specific prior written permission.
1.11 christos 35: *
1.1 christos 36: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
37: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
39: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
40: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
41: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
42: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
44: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
45: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
46: * SUCH DAMAGE.
47: */
48:
49: /*
50: * Portions Copyright (c) 1993 by Digital Equipment Corporation.
1.11 christos 51: *
1.1 christos 52: * Permission to use, copy, modify, and distribute this software for any
53: * purpose with or without fee is hereby granted, provided that the above
54: * copyright notice and this permission notice appear in all copies, and that
55: * the name of Digital Equipment Corporation not be used in advertising or
56: * publicity pertaining to distribution of the document or software without
57: * specific, written prior permission.
1.11 christos 58: *
1.1 christos 59: * THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP. DISCLAIMS ALL
60: * WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES
61: * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT
62: * CORPORATION BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
63: * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
64: * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
65: * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
66: * SOFTWARE.
67: */
68:
69: /*
70: * Portions Copyright (c) 1995 by International Business Machines, Inc.
71: *
72: * International Business Machines, Inc. (hereinafter called IBM) grants
73: * permission under its copyrights to use, copy, modify, and distribute this
74: * Software with or without fee, provided that the above copyright notice and
75: * all paragraphs of this notice appear in all copies, and that the name of IBM
76: * not be used in connection with the marketing of any product incorporating
77: * the Software or modifications thereof, without specific, written prior
78: * permission.
79: *
80: * To the extent it has a right to do so, IBM grants an immunity from suit
81: * under its patents, if any, for the use, sale or manufacture of products to
82: * the extent that such products are used for performing Domain Name System
83: * dynamic updates in TCP/IP networks by means of the Software. No immunity is
84: * granted for any product per se or for any other function of any product.
85: *
86: * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES,
87: * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
88: * PARTICULAR PURPOSE. IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL,
89: * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING
90: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN
91: * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES.
92: */
93:
1.4 christos 94: #include <sys/cdefs.h>
1.1 christos 95: #if defined(LIBC_SCCS) && !defined(lint)
1.4 christos 96: #ifdef notdef
1.1 christos 97: static const char sccsid[] = "@(#)res_debug.c 8.1 (Berkeley) 6/4/93";
1.11 christos 98: static const char rcsid[] = "Id: res_debug.c,v 1.19 2009/02/26 11:20:20 tbox Exp";
1.4 christos 99: #else
1.14 ! christos 100: __RCSID("$NetBSD: res_debug.c,v 1.13 2012/06/25 22:32:45 abs Exp $");
1.4 christos 101: #endif
1.1 christos 102: #endif /* LIBC_SCCS and not lint */
103:
104: #include "port_before.h"
105:
1.5 christos 106: #include "namespace.h"
1.1 christos 107: #include <sys/types.h>
108: #include <sys/param.h>
109: #include <sys/socket.h>
110:
111: #include <netinet/in.h>
112: #include <arpa/inet.h>
113: #include <arpa/nameser.h>
114:
1.12 christos 115: #include <assert.h>
1.1 christos 116: #include <ctype.h>
117: #include <errno.h>
118: #include <math.h>
119: #include <netdb.h>
120: #include <resolv.h>
1.8 christos 121: #include <resolv_mt.h>
1.1 christos 122: #include <stdio.h>
123: #include <stdlib.h>
124: #include <string.h>
125: #include <time.h>
126:
127: #include "port_after.h"
128:
129: #ifdef SPRINTF_CHAR
130: # define SPRINTF(x) strlen(sprintf/**/x)
131: #else
132: # define SPRINTF(x) sprintf x
133: #endif
134:
135: extern const char *_res_opcodes[];
136: extern const char *_res_sectioncodes[];
137:
1.6 christos 138: #if 0
1.5 christos 139: #ifdef __weak_alias
140: __weak_alias(res_pquery,__res_pquery)
141: __weak_alias(res_nametoclass,__res_nametoclass)
142: __weak_alias(res_nametotype,__res_nametotype)
143: #endif
1.6 christos 144: #endif
1.5 christos 145:
146: #ifndef _LIBC
1.8 christos 147: /*%
1.1 christos 148: * Print the current options.
149: */
150: void
151: fp_resstat(const res_state statp, FILE *file) {
152: u_long mask;
153:
154: fprintf(file, ";; res options:");
155: for (mask = 1; mask != 0U; mask <<= 1)
156: if (statp->options & mask)
157: fprintf(file, " %s", p_option(mask));
158: putc('\n', file);
159: }
1.5 christos 160: #endif
1.1 christos 161:
162: static void
163: do_section(const res_state statp,
164: ns_msg *handle, ns_sect section,
165: int pflag, FILE *file)
166: {
167: int n, sflag, rrnum;
168: static int buflen = 2048;
169: char *buf;
170: ns_opcode opcode;
171: ns_rr rr;
172:
173: /*
174: * Print answer records.
175: */
1.12 christos 176: sflag = (int)(statp->pfcode & pflag);
1.1 christos 177: if (statp->pfcode && !sflag)
178: return;
179:
1.2 christos 180: buf = malloc((size_t)buflen);
1.1 christos 181: if (buf == NULL) {
182: fprintf(file, ";; memory allocation failure\n");
183: return;
184: }
185:
186: opcode = (ns_opcode) ns_msg_getflag(*handle, ns_f_opcode);
187: rrnum = 0;
188: for (;;) {
189: if (ns_parserr(handle, section, rrnum, &rr)) {
190: if (errno != ENODEV)
191: fprintf(file, ";; ns_parserr: %s\n",
192: strerror(errno));
193: else if (rrnum > 0 && sflag != 0 &&
194: (statp->pfcode & RES_PRF_HEAD1))
195: putc('\n', file);
196: goto cleanup;
197: }
198: if (rrnum == 0 && sflag != 0 && (statp->pfcode & RES_PRF_HEAD1))
199: fprintf(file, ";; %s SECTION:\n",
200: p_section(section, opcode));
201: if (section == ns_s_qd)
202: fprintf(file, ";;\t%s, type = %s, class = %s\n",
203: ns_rr_name(rr),
204: p_type(ns_rr_type(rr)),
205: p_class(ns_rr_class(rr)));
206: else if (section == ns_s_ar && ns_rr_type(rr) == ns_t_opt) {
1.12 christos 207: size_t rdatalen, ttl;
208: uint16_t optcode, optlen;
209:
210: rdatalen = ns_rr_rdlen(rr);
211: ttl = ns_rr_ttl(rr);
1.10 christos 212:
1.1 christos 213: fprintf(file,
1.12 christos 214: "; EDNS: version: %zu, udp=%u, flags=%04zx\n",
1.1 christos 215: (ttl>>16)&0xff, ns_rr_class(rr), ttl&0xffff);
1.10 christos 216:
217: while (rdatalen >= 4) {
218: const u_char *cp = ns_rr_rdata(rr);
219: int i;
220:
221: GETSHORT(optcode, cp);
222: GETSHORT(optlen, cp);
223:
224: if (optcode == NS_OPT_NSID) {
225: fputs("; NSID: ", file);
226: if (optlen == 0) {
227: fputs("; NSID\n", file);
228: } else {
229: fputs("; NSID: ", file);
230: for (i = 0; i < optlen; i++)
231: fprintf(file, "%02x ",
232: cp[i]);
233: fputs(" (",file);
234: for (i = 0; i < optlen; i++)
235: fprintf(file, "%c",
236: isprint(cp[i])?
237: cp[i] : '.');
238: fputs(")\n", file);
239: }
240: } else {
241: if (optlen == 0) {
242: fprintf(file, "; OPT=%u\n",
243: optcode);
244: } else {
245: fprintf(file, "; OPT=%u: ",
246: optcode);
247: for (i = 0; i < optlen; i++)
248: fprintf(file, "%02x ",
249: cp[i]);
250: fputs(" (",file);
251: for (i = 0; i < optlen; i++)
252: fprintf(file, "%c",
253: isprint(cp[i]) ?
254: cp[i] : '.');
255: fputs(")\n", file);
256: }
257: }
258: rdatalen -= 4 + optlen;
259: }
1.1 christos 260: } else {
261: n = ns_sprintrr(handle, &rr, NULL, NULL,
1.2 christos 262: buf, (u_int)buflen);
1.1 christos 263: if (n < 0) {
264: if (errno == ENOSPC) {
265: free(buf);
266: buf = NULL;
267: if (buflen < 131072)
1.2 christos 268: buf = malloc((size_t)(buflen += 1024));
1.1 christos 269: if (buf == NULL) {
270: fprintf(file,
1.11 christos 271: ";; memory allocation failure\n");
1.1 christos 272: return;
273: }
274: continue;
275: }
276: fprintf(file, ";; ns_sprintrr: %s\n",
277: strerror(errno));
278: goto cleanup;
279: }
280: fputs(buf, file);
281: fputc('\n', file);
282: }
283: rrnum++;
284: }
285: cleanup:
286: if (buf != NULL)
287: free(buf);
288: }
289:
1.8 christos 290: /*%
1.1 christos 291: * Print the contents of a query.
292: * This is intended to be primarily a debugging routine.
293: */
294: void
295: res_pquery(const res_state statp, const u_char *msg, int len, FILE *file) {
296: ns_msg handle;
297: int qdcount, ancount, nscount, arcount;
298: u_int opcode, rcode, id;
299:
300: if (ns_initparse(msg, len, &handle) < 0) {
301: fprintf(file, ";; ns_initparse: %s\n", strerror(errno));
302: return;
303: }
304: opcode = ns_msg_getflag(handle, ns_f_opcode);
305: rcode = ns_msg_getflag(handle, ns_f_rcode);
306: id = ns_msg_id(handle);
307: qdcount = ns_msg_count(handle, ns_s_qd);
308: ancount = ns_msg_count(handle, ns_s_an);
309: nscount = ns_msg_count(handle, ns_s_ns);
310: arcount = ns_msg_count(handle, ns_s_ar);
311:
312: /*
313: * Print header fields.
314: */
315: if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEADX) || rcode)
316: fprintf(file,
317: ";; ->>HEADER<<- opcode: %s, status: %s, id: %d\n",
1.2 christos 318: _res_opcodes[opcode], p_rcode((int)rcode), id);
1.1 christos 319: if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEADX))
320: putc(';', file);
321: if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEAD2)) {
322: fprintf(file, "; flags:");
323: if (ns_msg_getflag(handle, ns_f_qr))
324: fprintf(file, " qr");
325: if (ns_msg_getflag(handle, ns_f_aa))
326: fprintf(file, " aa");
327: if (ns_msg_getflag(handle, ns_f_tc))
328: fprintf(file, " tc");
329: if (ns_msg_getflag(handle, ns_f_rd))
330: fprintf(file, " rd");
331: if (ns_msg_getflag(handle, ns_f_ra))
332: fprintf(file, " ra");
333: if (ns_msg_getflag(handle, ns_f_z))
334: fprintf(file, " ??");
335: if (ns_msg_getflag(handle, ns_f_ad))
336: fprintf(file, " ad");
337: if (ns_msg_getflag(handle, ns_f_cd))
338: fprintf(file, " cd");
339: }
340: if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEAD1)) {
341: fprintf(file, "; %s: %d",
1.2 christos 342: p_section(ns_s_qd, (int)opcode), qdcount);
1.1 christos 343: fprintf(file, ", %s: %d",
1.2 christos 344: p_section(ns_s_an, (int)opcode), ancount);
1.1 christos 345: fprintf(file, ", %s: %d",
1.2 christos 346: p_section(ns_s_ns, (int)opcode), nscount);
1.1 christos 347: fprintf(file, ", %s: %d",
1.2 christos 348: p_section(ns_s_ar, (int)opcode), arcount);
1.1 christos 349: }
1.11 christos 350: if ((!statp->pfcode) || (statp->pfcode &
1.1 christos 351: (RES_PRF_HEADX | RES_PRF_HEAD2 | RES_PRF_HEAD1))) {
352: putc('\n',file);
353: }
354: /*
355: * Print the various sections.
356: */
357: do_section(statp, &handle, ns_s_qd, RES_PRF_QUES, file);
358: do_section(statp, &handle, ns_s_an, RES_PRF_ANS, file);
359: do_section(statp, &handle, ns_s_ns, RES_PRF_AUTH, file);
360: do_section(statp, &handle, ns_s_ar, RES_PRF_ADD, file);
361: if (qdcount == 0 && ancount == 0 &&
362: nscount == 0 && arcount == 0)
363: putc('\n', file);
364: }
365:
366: const u_char *
367: p_cdnname(const u_char *cp, const u_char *msg, int len, FILE *file) {
368: char name[MAXDNAME];
369: int n;
370:
1.12 christos 371: if ((n = dn_expand(msg, msg + len, cp, name, (int)sizeof name)) < 0)
1.1 christos 372: return (NULL);
373: if (name[0] == '\0')
374: putc('.', file);
375: else
376: fputs(name, file);
377: return (cp + n);
378: }
379:
380: const u_char *
381: p_cdname(const u_char *cp, const u_char *msg, FILE *file) {
382: return (p_cdnname(cp, msg, PACKETSZ, file));
383: }
384:
1.8 christos 385: /*%
386: * Return a fully-qualified domain name from a compressed name (with
1.1 christos 387: length supplied). */
388:
389: const u_char *
1.13 abs 390: p_fqnname(const u_char *cp, const u_char *msg, int msglen, char *name,
391: int namelen)
1.1 christos 392: {
1.12 christos 393: int n;
394: size_t newlen;
1.1 christos 395:
396: if ((n = dn_expand(msg, cp + msglen, cp, name, namelen)) < 0)
397: return (NULL);
398: newlen = strlen(name);
399: if (newlen == 0 || name[newlen - 1] != '.') {
1.12 christos 400: if ((int)newlen + 1 >= namelen) /*%< Lack space for final dot */
1.1 christos 401: return (NULL);
402: else
403: strcpy(name + newlen, ".");
404: }
405: return (cp + n);
406: }
407:
408: /* XXX: the rest of these functions need to become length-limited, too. */
409:
410: const u_char *
411: p_fqname(const u_char *cp, const u_char *msg, FILE *file) {
412: char name[MAXDNAME];
413: const u_char *n;
414:
1.12 christos 415: n = p_fqnname(cp, msg, MAXCDNAME, name, (int)sizeof name);
1.1 christos 416: if (n == NULL)
417: return (NULL);
418: fputs(name, file);
419: return (n);
420: }
421:
1.8 christos 422: /*%
1.1 christos 423: * Names of RR classes and qclasses. Classes and qclasses are the same, except
424: * that C_ANY is a qclass but not a class. (You can ask for records of class
425: * C_ANY, but you can't have any records of that class in the database.)
426: */
427: const struct res_sym __p_class_syms[] = {
428: {C_IN, "IN", (char *)0},
429: {C_CHAOS, "CH", (char *)0},
430: {C_CHAOS, "CHAOS", (char *)0},
431: {C_HS, "HS", (char *)0},
432: {C_HS, "HESIOD", (char *)0},
433: {C_ANY, "ANY", (char *)0},
434: {C_NONE, "NONE", (char *)0},
435: {C_IN, (char *)0, (char *)0}
436: };
437:
1.8 christos 438: /*%
1.1 christos 439: * Names of message sections.
440: */
441: const struct res_sym __p_default_section_syms[] = {
442: {ns_s_qd, "QUERY", (char *)0},
443: {ns_s_an, "ANSWER", (char *)0},
444: {ns_s_ns, "AUTHORITY", (char *)0},
445: {ns_s_ar, "ADDITIONAL", (char *)0},
1.11 christos 446: {0, (char *)0, (char *)0}
1.1 christos 447: };
448:
449: const struct res_sym __p_update_section_syms[] = {
450: {S_ZONE, "ZONE", (char *)0},
451: {S_PREREQ, "PREREQUISITE", (char *)0},
452: {S_UPDATE, "UPDATE", (char *)0},
453: {S_ADDT, "ADDITIONAL", (char *)0},
1.11 christos 454: {0, (char *)0, (char *)0}
1.1 christos 455: };
456:
457: const struct res_sym __p_key_syms[] = {
458: {NS_ALG_MD5RSA, "RSA", "RSA KEY with MD5 hash"},
459: {NS_ALG_DH, "DH", "Diffie Hellman"},
460: {NS_ALG_DSA, "DSA", "Digital Signature Algorithm"},
461: {NS_ALG_EXPIRE_ONLY, "EXPIREONLY", "No algorithm"},
462: {NS_ALG_PRIVATE_OID, "PRIVATE", "Algorithm obtained from OID"},
463: {0, NULL, NULL}
464: };
465:
466: const struct res_sym __p_cert_syms[] = {
467: {cert_t_pkix, "PKIX", "PKIX (X.509v3) Certificate"},
468: {cert_t_spki, "SPKI", "SPKI certificate"},
469: {cert_t_pgp, "PGP", "PGP certificate"},
470: {cert_t_url, "URL", "URL Private"},
471: {cert_t_oid, "OID", "OID Private"},
472: {0, NULL, NULL}
473: };
474:
1.8 christos 475: /*%
1.1 christos 476: * Names of RR types and qtypes. Types and qtypes are the same, except
477: * that T_ANY is a qtype but not a type. (You can ask for records of type
478: * T_ANY, but you can't have any records of that type in the database.)
479: */
480: const struct res_sym __p_type_syms[] = {
481: {ns_t_a, "A", "address"},
482: {ns_t_ns, "NS", "name server"},
483: {ns_t_md, "MD", "mail destination (deprecated)"},
484: {ns_t_mf, "MF", "mail forwarder (deprecated)"},
485: {ns_t_cname, "CNAME", "canonical name"},
486: {ns_t_soa, "SOA", "start of authority"},
487: {ns_t_mb, "MB", "mailbox"},
488: {ns_t_mg, "MG", "mail group member"},
489: {ns_t_mr, "MR", "mail rename"},
490: {ns_t_null, "NULL", "null"},
491: {ns_t_wks, "WKS", "well-known service (deprecated)"},
492: {ns_t_ptr, "PTR", "domain name pointer"},
493: {ns_t_hinfo, "HINFO", "host information"},
494: {ns_t_minfo, "MINFO", "mailbox information"},
495: {ns_t_mx, "MX", "mail exchanger"},
496: {ns_t_txt, "TXT", "text"},
497: {ns_t_rp, "RP", "responsible person"},
498: {ns_t_afsdb, "AFSDB", "DCE or AFS server"},
499: {ns_t_x25, "X25", "X25 address"},
500: {ns_t_isdn, "ISDN", "ISDN address"},
501: {ns_t_rt, "RT", "router"},
502: {ns_t_nsap, "NSAP", "nsap address"},
503: {ns_t_nsap_ptr, "NSAP_PTR", "domain name pointer"},
504: {ns_t_sig, "SIG", "signature"},
505: {ns_t_key, "KEY", "key"},
506: {ns_t_px, "PX", "mapping information"},
507: {ns_t_gpos, "GPOS", "geographical position (withdrawn)"},
508: {ns_t_aaaa, "AAAA", "IPv6 address"},
509: {ns_t_loc, "LOC", "location"},
510: {ns_t_nxt, "NXT", "next valid name (unimplemented)"},
511: {ns_t_eid, "EID", "endpoint identifier (unimplemented)"},
512: {ns_t_nimloc, "NIMLOC", "NIMROD locator (unimplemented)"},
513: {ns_t_srv, "SRV", "server selection"},
514: {ns_t_atma, "ATMA", "ATM address (unimplemented)"},
1.11 christos 515: {ns_t_naptr, "NAPTR", "naptr"},
516: {ns_t_kx, "KX", "key exchange"},
517: {ns_t_cert, "CERT", "certificate"},
518: {ns_t_a6, "A", "IPv6 address (experminental)"},
519: {ns_t_dname, "DNAME", "non-terminal redirection"},
520: {ns_t_opt, "OPT", "opt"},
521: {ns_t_apl, "apl", "apl"},
522: {ns_t_ds, "DS", "delegation signer"},
523: {ns_t_sshfp, "SSFP", "SSH fingerprint"},
524: {ns_t_ipseckey, "IPSECKEY", "IPSEC key"},
525: {ns_t_rrsig, "RRSIG", "rrsig"},
526: {ns_t_nsec, "NSEC", "nsec"},
527: {ns_t_dnskey, "DNSKEY", "DNS key"},
528: {ns_t_dhcid, "DHCID", "dynamic host configuration identifier"},
529: {ns_t_nsec3, "NSEC3", "nsec3"},
530: {ns_t_nsec3param, "NSEC3PARAM", "NSEC3 parameters"},
531: {ns_t_hip, "HIP", "host identity protocol"},
532: {ns_t_spf, "SPF", "sender policy framework"},
1.1 christos 533: {ns_t_tkey, "TKEY", "tkey"},
534: {ns_t_tsig, "TSIG", "transaction signature"},
535: {ns_t_ixfr, "IXFR", "incremental zone transfer"},
536: {ns_t_axfr, "AXFR", "zone transfer"},
537: {ns_t_zxfr, "ZXFR", "compressed zone transfer"},
538: {ns_t_mailb, "MAILB", "mailbox-related data (deprecated)"},
539: {ns_t_maila, "MAILA", "mail agent (deprecated)"},
540: {ns_t_naptr, "NAPTR", "URN Naming Authority"},
541: {ns_t_kx, "KX", "Key Exchange"},
542: {ns_t_cert, "CERT", "Certificate"},
543: {ns_t_a6, "A6", "IPv6 Address"},
544: {ns_t_dname, "DNAME", "dname"},
545: {ns_t_sink, "SINK", "Kitchen Sink (experimental)"},
546: {ns_t_opt, "OPT", "EDNS Options"},
547: {ns_t_any, "ANY", "\"any\""},
1.11 christos 548: {ns_t_dlv, "DLV", "DNSSEC look-aside validation"},
1.1 christos 549: {0, NULL, NULL}
550: };
551:
1.8 christos 552: /*%
1.1 christos 553: * Names of DNS rcodes.
554: */
555: const struct res_sym __p_rcode_syms[] = {
556: {ns_r_noerror, "NOERROR", "no error"},
557: {ns_r_formerr, "FORMERR", "format error"},
558: {ns_r_servfail, "SERVFAIL", "server failed"},
559: {ns_r_nxdomain, "NXDOMAIN", "no such domain name"},
560: {ns_r_notimpl, "NOTIMP", "not implemented"},
561: {ns_r_refused, "REFUSED", "refused"},
562: {ns_r_yxdomain, "YXDOMAIN", "domain name exists"},
563: {ns_r_yxrrset, "YXRRSET", "rrset exists"},
564: {ns_r_nxrrset, "NXRRSET", "rrset doesn't exist"},
565: {ns_r_notauth, "NOTAUTH", "not authoritative"},
566: {ns_r_notzone, "NOTZONE", "Not in zone"},
567: {ns_r_max, "", ""},
568: {ns_r_badsig, "BADSIG", "bad signature"},
569: {ns_r_badkey, "BADKEY", "bad key"},
570: {ns_r_badtime, "BADTIME", "bad time"},
571: {0, NULL, NULL}
572: };
573:
574: int
575: sym_ston(const struct res_sym *syms, const char *name, int *success) {
1.3 christos 576: for (; syms->name != 0; syms++) {
1.1 christos 577: if (strcasecmp (name, syms->name) == 0) {
578: if (success)
579: *success = 1;
580: return (syms->number);
581: }
582: }
583: if (success)
584: *success = 0;
1.8 christos 585: return (syms->number); /*%< The default value. */
1.1 christos 586: }
587:
588: const char *
589: sym_ntos(const struct res_sym *syms, int number, int *success) {
1.8 christos 590: char *unname = sym_ntos_unname;
1.1 christos 591:
1.2 christos 592: for (; syms->name != 0; syms++) {
1.1 christos 593: if (number == syms->number) {
594: if (success)
595: *success = 1;
596: return (syms->name);
597: }
598: }
599:
1.8 christos 600: sprintf(unname, "%d", number); /*%< XXX nonreentrant */
1.1 christos 601: if (success)
602: *success = 0;
603: return (unname);
604: }
605:
606: const char *
607: sym_ntop(const struct res_sym *syms, int number, int *success) {
1.8 christos 608: char *unname = sym_ntop_unname;
1.1 christos 609:
1.2 christos 610: for (; syms->name != 0; syms++) {
1.1 christos 611: if (number == syms->number) {
612: if (success)
613: *success = 1;
614: return (syms->humanname);
615: }
616: }
1.8 christos 617: sprintf(unname, "%d", number); /*%< XXX nonreentrant */
1.1 christos 618: if (success)
619: *success = 0;
620: return (unname);
621: }
622:
1.8 christos 623: /*%
1.1 christos 624: * Return a string for the type.
625: */
626: const char *
627: p_type(int type) {
628: int success;
629: const char *result;
630: static char typebuf[20];
631:
632: result = sym_ntos(__p_type_syms, type, &success);
633: if (success)
634: return (result);
1.7 christos 635: if (type < 0 || type > 0xffff)
1.1 christos 636: return ("BADTYPE");
637: sprintf(typebuf, "TYPE%d", type);
638: return (typebuf);
639: }
640:
1.8 christos 641: /*%
1.1 christos 642: * Return a string for the type.
643: */
644: const char *
645: p_section(int section, int opcode) {
646: const struct res_sym *symbols;
647:
648: switch (opcode) {
649: case ns_o_update:
650: symbols = __p_update_section_syms;
651: break;
652: default:
653: symbols = __p_default_section_syms;
654: break;
655: }
656: return (sym_ntos(symbols, section, (int *)0));
657: }
658:
1.8 christos 659: /*%
1.1 christos 660: * Return a mnemonic for class.
661: */
662: const char *
663: p_class(int class) {
664: int success;
665: const char *result;
666: static char classbuf[20];
667:
668: result = sym_ntos(__p_class_syms, class, &success);
669: if (success)
670: return (result);
1.7 christos 671: if (class < 0 || class > 0xffff)
1.1 christos 672: return ("BADCLASS");
673: sprintf(classbuf, "CLASS%d", class);
674: return (classbuf);
675: }
676:
1.8 christos 677: /*%
1.1 christos 678: * Return a mnemonic for an option
679: */
680: const char *
681: p_option(u_long option) {
1.8 christos 682: char *nbuf = p_option_nbuf;
1.1 christos 683:
684: switch (option) {
685: case RES_INIT: return "init";
686: case RES_DEBUG: return "debug";
687: case RES_AAONLY: return "aaonly(unimpl)";
688: case RES_USEVC: return "usevc";
689: case RES_PRIMARY: return "primry(unimpl)";
690: case RES_IGNTC: return "igntc";
691: case RES_RECURSE: return "recurs";
692: case RES_DEFNAMES: return "defnam";
693: case RES_STAYOPEN: return "styopn";
694: case RES_DNSRCH: return "dnsrch";
695: case RES_INSECURE1: return "insecure1";
696: case RES_INSECURE2: return "insecure2";
697: case RES_NOALIASES: return "noaliases";
698: case RES_USE_INET6: return "inet6";
1.8 christos 699: #ifdef RES_USE_EDNS0 /*%< KAME extension */
1.1 christos 700: case RES_USE_EDNS0: return "edns0";
1.10 christos 701: case RES_NSID: return "nsid";
1.1 christos 702: #endif
703: #ifdef RES_USE_DNAME
704: case RES_USE_DNAME: return "dname";
705: #endif
706: #ifdef RES_USE_DNSSEC
707: case RES_USE_DNSSEC: return "dnssec";
708: #endif
709: #ifdef RES_NOTLDQUERY
710: case RES_NOTLDQUERY: return "no-tld-query";
711: #endif
712: #ifdef RES_NO_NIBBLE2
713: case RES_NO_NIBBLE2: return "no-nibble2";
714: #endif
715: /* XXX nonreentrant */
716: default: sprintf(nbuf, "?0x%lx?", (u_long)option);
717: return (nbuf);
718: }
719: }
720:
1.8 christos 721: /*%
1.1 christos 722: * Return a mnemonic for a time to live.
723: */
724: const char *
725: p_time(u_int32_t value) {
1.8 christos 726: char *nbuf = p_time_nbuf;
1.1 christos 727:
1.2 christos 728: if (ns_format_ttl((u_long)value, nbuf, sizeof nbuf) < 0)
1.1 christos 729: sprintf(nbuf, "%u", value);
730: return (nbuf);
731: }
732:
1.8 christos 733: /*%
1.1 christos 734: * Return a string for the rcode.
735: */
736: const char *
737: p_rcode(int rcode) {
738: return (sym_ntos(__p_rcode_syms, rcode, (int *)0));
739: }
740:
1.8 christos 741: /*%
1.1 christos 742: * Return a string for a res_sockaddr_union.
743: */
744: const char *
745: p_sockun(union res_sockaddr_union u, char *buf, size_t size) {
746: char ret[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:123.123.123.123"];
747:
748: switch (u.sin.sin_family) {
749: case AF_INET:
1.12 christos 750: inet_ntop(AF_INET, &u.sin.sin_addr, ret, (socklen_t)sizeof ret);
1.1 christos 751: break;
752: #ifdef HAS_INET6_STRUCTS
753: case AF_INET6:
754: inet_ntop(AF_INET6, &u.sin6.sin6_addr, ret, sizeof ret);
755: break;
756: #endif
757: default:
758: sprintf(ret, "[af%d]", u.sin.sin_family);
759: break;
760: }
761: if (size > 0U) {
762: strncpy(buf, ret, size - 1);
763: buf[size - 1] = '0';
764: }
765: return (buf);
766: }
767:
1.8 christos 768: /*%
1.1 christos 769: * routines to convert between on-the-wire RR format and zone file format.
770: * Does not contain conversion to/from decimal degrees; divide or multiply
771: * by 60*60*1000 for that.
772: */
773:
774: static unsigned int poweroften[10] = {1, 10, 100, 1000, 10000, 100000,
775: 1000000,10000000,100000000,1000000000};
776:
1.8 christos 777: /*% takes an XeY precision/size value, returns a string representation. */
1.1 christos 778: static const char *
1.10 christos 779: precsize_ntoa(u_int32_t prec)
1.1 christos 780: {
1.8 christos 781: char *retbuf = precsize_ntoa_retbuf;
1.1 christos 782: unsigned long val;
783: int mantissa, exponent;
784:
785: mantissa = (int)((prec >> 4) & 0x0f) % 10;
786: exponent = (int)((prec >> 0) & 0x0f) % 10;
787:
788: val = mantissa * poweroften[exponent];
789:
790: (void) sprintf(retbuf, "%lu.%.2lu", val/100, val%100);
791: return (retbuf);
792: }
793:
1.8 christos 794: /*% converts ascii size/precision X * 10**Y(cm) to 0xXY. moves pointer. */
1.1 christos 795: static u_int8_t
796: precsize_aton(const char **strptr) {
797: unsigned int mval = 0, cmval = 0;
798: u_int8_t retval = 0;
799: const char *cp;
800: int exponent;
801: int mantissa;
802:
803: cp = *strptr;
804:
805: while (isdigit((unsigned char)*cp))
806: mval = mval * 10 + (*cp++ - '0');
807:
1.8 christos 808: if (*cp == '.') { /*%< centimeters */
1.1 christos 809: cp++;
810: if (isdigit((unsigned char)*cp)) {
811: cmval = (*cp++ - '0') * 10;
812: if (isdigit((unsigned char)*cp)) {
813: cmval += (*cp++ - '0');
814: }
815: }
816: }
817: cmval = (mval * 100) + cmval;
818:
819: for (exponent = 0; exponent < 9; exponent++)
820: if (cmval < poweroften[exponent+1])
821: break;
822:
823: mantissa = cmval / poweroften[exponent];
824: if (mantissa > 9)
825: mantissa = 9;
826:
827: retval = (mantissa << 4) | exponent;
828:
829: *strptr = cp;
830:
831: return (retval);
832: }
833:
1.8 christos 834: /*% converts ascii lat/lon to unsigned encoded 32-bit number. moves pointer. */
1.1 christos 835: static u_int32_t
836: latlon2ul(const char **latlonstrptr, int *which) {
837: const char *cp;
838: u_int32_t retval;
839: int deg = 0, min = 0, secs = 0, secsfrac = 0;
840:
841: cp = *latlonstrptr;
842:
843: while (isdigit((unsigned char)*cp))
844: deg = deg * 10 + (*cp++ - '0');
845:
846: while (isspace((unsigned char)*cp))
847: cp++;
848:
849: if (!(isdigit((unsigned char)*cp)))
850: goto fndhemi;
851:
852: while (isdigit((unsigned char)*cp))
853: min = min * 10 + (*cp++ - '0');
854:
855: while (isspace((unsigned char)*cp))
856: cp++;
857:
858: if (!(isdigit((unsigned char)*cp)))
859: goto fndhemi;
860:
861: while (isdigit((unsigned char)*cp))
862: secs = secs * 10 + (*cp++ - '0');
863:
1.8 christos 864: if (*cp == '.') { /*%< decimal seconds */
1.1 christos 865: cp++;
866: if (isdigit((unsigned char)*cp)) {
867: secsfrac = (*cp++ - '0') * 100;
868: if (isdigit((unsigned char)*cp)) {
869: secsfrac += (*cp++ - '0') * 10;
870: if (isdigit((unsigned char)*cp)) {
871: secsfrac += (*cp++ - '0');
872: }
873: }
874: }
875: }
876:
1.8 christos 877: while (!isspace((unsigned char)*cp)) /*%< if any trailing garbage */
1.1 christos 878: cp++;
879:
880: while (isspace((unsigned char)*cp))
881: cp++;
882:
883: fndhemi:
884: switch (*cp) {
885: case 'N': case 'n':
886: case 'E': case 'e':
887: retval = ((unsigned)1<<31)
888: + (((((deg * 60) + min) * 60) + secs) * 1000)
889: + secsfrac;
890: break;
891: case 'S': case 's':
892: case 'W': case 'w':
893: retval = ((unsigned)1<<31)
894: - (((((deg * 60) + min) * 60) + secs) * 1000)
895: - secsfrac;
896: break;
897: default:
1.8 christos 898: retval = 0; /*%< invalid value -- indicates error */
1.1 christos 899: break;
900: }
901:
902: switch (*cp) {
903: case 'N': case 'n':
904: case 'S': case 's':
1.8 christos 905: *which = 1; /*%< latitude */
1.1 christos 906: break;
907: case 'E': case 'e':
908: case 'W': case 'w':
1.8 christos 909: *which = 2; /*%< longitude */
1.1 christos 910: break;
911: default:
1.8 christos 912: *which = 0; /*%< error */
1.1 christos 913: break;
914: }
915:
1.8 christos 916: cp++; /*%< skip the hemisphere */
917: while (!isspace((unsigned char)*cp)) /*%< if any trailing garbage */
1.1 christos 918: cp++;
919:
1.8 christos 920: while (isspace((unsigned char)*cp)) /*%< move to next field */
1.1 christos 921: cp++;
922:
923: *latlonstrptr = cp;
924:
925: return (retval);
926: }
927:
1.8 christos 928: /*%
929: * converts a zone file representation in a string to an RDATA on-the-wire
1.1 christos 930: * representation. */
931: int
1.13 abs 932: loc_aton(const char *ascii, u_char *binary)
1.1 christos 933: {
934: const char *cp, *maxcp;
935: u_char *bcp;
936:
937: u_int32_t latit = 0, longit = 0, alt = 0;
938: u_int32_t lltemp1 = 0, lltemp2 = 0;
939: int altmeters = 0, altfrac = 0, altsign = 1;
1.8 christos 940: u_int8_t hp = 0x16; /*%< default = 1e6 cm = 10000.00m = 10km */
941: u_int8_t vp = 0x13; /*%< default = 1e3 cm = 10.00m */
942: u_int8_t siz = 0x12; /*%< default = 1e2 cm = 1.00m */
1.1 christos 943: int which1 = 0, which2 = 0;
944:
945: cp = ascii;
946: maxcp = cp + strlen(ascii);
947:
948: lltemp1 = latlon2ul(&cp, &which1);
949:
950: lltemp2 = latlon2ul(&cp, &which2);
951:
952: switch (which1 + which2) {
1.8 christos 953: case 3: /*%< 1 + 2, the only valid combination */
954: if ((which1 == 1) && (which2 == 2)) { /*%< normal case */
1.1 christos 955: latit = lltemp1;
956: longit = lltemp2;
1.8 christos 957: } else if ((which1 == 2) && (which2 == 1)) { /*%< reversed */
1.1 christos 958: longit = lltemp1;
959: latit = lltemp2;
1.8 christos 960: } else { /*%< some kind of brokenness */
1.1 christos 961: return (0);
962: }
963: break;
1.8 christos 964: default: /*%< we didn't get one of each */
1.1 christos 965: return (0);
966: }
967:
968: /* altitude */
969: if (*cp == '-') {
970: altsign = -1;
971: cp++;
972: }
1.11 christos 973:
1.1 christos 974: if (*cp == '+')
975: cp++;
976:
977: while (isdigit((unsigned char)*cp))
978: altmeters = altmeters * 10 + (*cp++ - '0');
979:
1.8 christos 980: if (*cp == '.') { /*%< decimal meters */
1.1 christos 981: cp++;
982: if (isdigit((unsigned char)*cp)) {
983: altfrac = (*cp++ - '0') * 10;
984: if (isdigit((unsigned char)*cp)) {
985: altfrac += (*cp++ - '0');
986: }
987: }
988: }
989:
990: alt = (10000000 + (altsign * (altmeters * 100 + altfrac)));
991:
1.8 christos 992: while (!isspace((unsigned char)*cp) && (cp < maxcp)) /*%< if trailing garbage or m */
1.1 christos 993: cp++;
994:
995: while (isspace((unsigned char)*cp) && (cp < maxcp))
996: cp++;
997:
998: if (cp >= maxcp)
999: goto defaults;
1000:
1001: siz = precsize_aton(&cp);
1.11 christos 1002:
1.8 christos 1003: while (!isspace((unsigned char)*cp) && (cp < maxcp)) /*%< if trailing garbage or m */
1.1 christos 1004: cp++;
1005:
1006: while (isspace((unsigned char)*cp) && (cp < maxcp))
1007: cp++;
1008:
1009: if (cp >= maxcp)
1010: goto defaults;
1011:
1012: hp = precsize_aton(&cp);
1013:
1.8 christos 1014: while (!isspace((unsigned char)*cp) && (cp < maxcp)) /*%< if trailing garbage or m */
1.1 christos 1015: cp++;
1016:
1017: while (isspace((unsigned char)*cp) && (cp < maxcp))
1018: cp++;
1019:
1020: if (cp >= maxcp)
1021: goto defaults;
1022:
1023: vp = precsize_aton(&cp);
1024:
1025: defaults:
1026:
1027: bcp = binary;
1.8 christos 1028: *bcp++ = (u_int8_t) 0; /*%< version byte */
1.1 christos 1029: *bcp++ = siz;
1030: *bcp++ = hp;
1031: *bcp++ = vp;
1032: PUTLONG(latit,bcp);
1033: PUTLONG(longit,bcp);
1034: PUTLONG(alt,bcp);
1.11 christos 1035:
1.8 christos 1036: return (16); /*%< size of RR in octets */
1.1 christos 1037: }
1038:
1.8 christos 1039: /*% takes an on-the-wire LOC RR and formats it in a human readable format. */
1.1 christos 1040: const char *
1.13 abs 1041: loc_ntoa(const u_char *binary, char *ascii)
1.1 christos 1042: {
1043: static const char *error = "?";
1044: static char tmpbuf[sizeof
1045: "1000 60 60.000 N 1000 60 60.000 W -12345678.00m 90000000.00m 90000000.00m 90000000.00m"];
1046: const u_char *cp = binary;
1047:
1048: int latdeg, latmin, latsec, latsecfrac;
1049: int longdeg, longmin, longsec, longsecfrac;
1050: char northsouth, eastwest;
1051: const char *altsign;
1052: int altmeters, altfrac;
1053:
1054: const u_int32_t referencealt = 100000 * 100;
1055:
1056: int32_t latval, longval, altval;
1057: u_int32_t templ;
1058: u_int8_t sizeval, hpval, vpval, versionval;
1.11 christos 1059:
1.1 christos 1060: char *sizestr, *hpstr, *vpstr;
1061:
1062: versionval = *cp++;
1063:
1064: if (ascii == NULL)
1065: ascii = tmpbuf;
1066:
1067: if (versionval) {
1068: (void) sprintf(ascii, "; error: unknown LOC RR version");
1069: return (ascii);
1070: }
1071:
1072: sizeval = *cp++;
1073:
1074: hpval = *cp++;
1075: vpval = *cp++;
1076:
1077: GETLONG(templ, cp);
1078: latval = (templ - ((unsigned)1<<31));
1079:
1080: GETLONG(templ, cp);
1081: longval = (templ - ((unsigned)1<<31));
1082:
1083: GETLONG(templ, cp);
1.8 christos 1084: if (templ < referencealt) { /*%< below WGS 84 spheroid */
1.1 christos 1085: altval = referencealt - templ;
1086: altsign = "-";
1087: } else {
1088: altval = templ - referencealt;
1089: altsign = "";
1090: }
1091:
1092: if (latval < 0) {
1093: northsouth = 'S';
1094: latval = -latval;
1095: } else
1096: northsouth = 'N';
1097:
1098: latsecfrac = latval % 1000;
1099: latval = latval / 1000;
1100: latsec = latval % 60;
1101: latval = latval / 60;
1102: latmin = latval % 60;
1103: latval = latval / 60;
1104: latdeg = latval;
1105:
1106: if (longval < 0) {
1107: eastwest = 'W';
1108: longval = -longval;
1109: } else
1110: eastwest = 'E';
1111:
1112: longsecfrac = longval % 1000;
1113: longval = longval / 1000;
1114: longsec = longval % 60;
1115: longval = longval / 60;
1116: longmin = longval % 60;
1117: longval = longval / 60;
1118: longdeg = longval;
1119:
1120: altfrac = altval % 100;
1121: altmeters = (altval / 100);
1122:
1.2 christos 1123: sizestr = strdup(precsize_ntoa((u_int32_t)sizeval));
1124: hpstr = strdup(precsize_ntoa((u_int32_t)hpval));
1125: vpstr = strdup(precsize_ntoa((u_int32_t)vpval));
1.1 christos 1126:
1127: sprintf(ascii,
1128: "%d %.2d %.2d.%.3d %c %d %.2d %.2d.%.3d %c %s%d.%.2dm %sm %sm %sm",
1129: latdeg, latmin, latsec, latsecfrac, northsouth,
1130: longdeg, longmin, longsec, longsecfrac, eastwest,
1131: altsign, altmeters, altfrac,
1132: (sizestr != NULL) ? sizestr : error,
1133: (hpstr != NULL) ? hpstr : error,
1134: (vpstr != NULL) ? vpstr : error);
1135:
1136: if (sizestr != NULL)
1137: free(sizestr);
1138: if (hpstr != NULL)
1139: free(hpstr);
1140: if (vpstr != NULL)
1141: free(vpstr);
1142:
1143: return (ascii);
1144: }
1145:
1146:
1.8 christos 1147: /*% Return the number of DNS hierarchy levels in the name. */
1.1 christos 1148: int
1149: dn_count_labels(const char *name) {
1.12 christos 1150: size_t len, i, count;
1.1 christos 1151:
1152: len = strlen(name);
1153: for (i = 0, count = 0; i < len; i++) {
1154: /* XXX need to check for \. or use named's nlabels(). */
1155: if (name[i] == '.')
1156: count++;
1157: }
1158:
1159: /* don't count initial wildcard */
1160: if (name[0] == '*')
1161: if (count)
1162: count--;
1163:
1164: /* don't count the null label for root. */
1165: /* if terminating '.' not found, must adjust */
1166: /* count to include last label */
1167: if (len > 0 && name[len-1] != '.')
1168: count++;
1.12 christos 1169: _DIAGASSERT(__type_fit(int, count));
1170: return (int)count;
1.1 christos 1171: }
1172:
1.8 christos 1173: /*%
1.11 christos 1174: * Make dates expressed in seconds-since-Jan-1-1970 easy to read.
1.1 christos 1175: * SIG records are required to be printed like this, by the Secure DNS RFC.
1176: */
1177: char *
1178: p_secstodate (u_long secs) {
1179: /* XXX nonreentrant */
1.8 christos 1180: char *output = p_secstodate_output;
1.2 christos 1181: time_t myclock = secs;
1182: struct tm *mytime;
1.1 christos 1183: #ifdef HAVE_TIME_R
1184: struct tm res;
1185:
1.2 christos 1186: mytime = gmtime_r(&myclock, &res);
1.1 christos 1187: #else
1.2 christos 1188: mytime = gmtime(&myclock);
1.1 christos 1189: #endif
1.2 christos 1190: mytime->tm_year += 1900;
1191: mytime->tm_mon += 1;
1.1 christos 1192: sprintf(output, "%04d%02d%02d%02d%02d%02d",
1.2 christos 1193: mytime->tm_year, mytime->tm_mon, mytime->tm_mday,
1194: mytime->tm_hour, mytime->tm_min, mytime->tm_sec);
1.1 christos 1195: return (output);
1196: }
1197:
1198: u_int16_t
1199: res_nametoclass(const char *buf, int *successp) {
1200: unsigned long result;
1201: char *endptr;
1202: int success;
1203:
1204: result = sym_ston(__p_class_syms, buf, &success);
1205: if (success)
1206: goto done;
1207:
1208: if (strncasecmp(buf, "CLASS", 5) != 0 ||
1209: !isdigit((unsigned char)buf[5]))
1210: goto done;
1211: errno = 0;
1212: result = strtoul(buf + 5, &endptr, 10);
1213: if (errno == 0 && *endptr == '\0' && result <= 0xffffU)
1214: success = 1;
1215: done:
1216: if (successp)
1217: *successp = success;
1.2 christos 1218: return (u_int16_t)(result);
1.1 christos 1219: }
1220:
1221: u_int16_t
1222: res_nametotype(const char *buf, int *successp) {
1223: unsigned long result;
1224: char *endptr;
1225: int success;
1226:
1227: result = sym_ston(__p_type_syms, buf, &success);
1228: if (success)
1229: goto done;
1230:
1231: if (strncasecmp(buf, "type", 4) != 0 ||
1232: !isdigit((unsigned char)buf[4]))
1233: goto done;
1234: errno = 0;
1235: result = strtoul(buf + 4, &endptr, 10);
1236: if (errno == 0 && *endptr == '\0' && result <= 0xffffU)
1237: success = 1;
1238: done:
1239: if (successp)
1240: *successp = success;
1.2 christos 1241: return (u_int16_t)(result);
1.1 christos 1242: }
1.8 christos 1243:
1244: /*! \file */
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