Annotation of src/lib/libc/resolv/res_debug.c, Revision 1.15
1.15 ! maya 1: /* $NetBSD: res_debug.c,v 1.14 2015/02/24 17:56:20 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.
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
1.15 ! maya 100: __RCSID("$NetBSD: res_debug.c,v 1.14 2015/02/24 17:56:20 christos 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: extern const char *_res_opcodes[];
130: extern const char *_res_sectioncodes[];
131:
1.6 christos 132: #if 0
1.5 christos 133: #ifdef __weak_alias
134: __weak_alias(res_pquery,__res_pquery)
135: __weak_alias(res_nametoclass,__res_nametoclass)
136: __weak_alias(res_nametotype,__res_nametotype)
137: #endif
1.6 christos 138: #endif
1.5 christos 139:
140: #ifndef _LIBC
1.8 christos 141: /*%
1.1 christos 142: * Print the current options.
143: */
144: void
145: fp_resstat(const res_state statp, FILE *file) {
146: u_long mask;
147:
148: fprintf(file, ";; res options:");
149: for (mask = 1; mask != 0U; mask <<= 1)
150: if (statp->options & mask)
151: fprintf(file, " %s", p_option(mask));
152: putc('\n', file);
153: }
1.5 christos 154: #endif
1.1 christos 155:
156: static void
157: do_section(const res_state statp,
158: ns_msg *handle, ns_sect section,
159: int pflag, FILE *file)
160: {
161: int n, sflag, rrnum;
162: static int buflen = 2048;
163: char *buf;
164: ns_opcode opcode;
165: ns_rr rr;
166:
167: /*
168: * Print answer records.
169: */
1.12 christos 170: sflag = (int)(statp->pfcode & pflag);
1.1 christos 171: if (statp->pfcode && !sflag)
172: return;
173:
1.2 christos 174: buf = malloc((size_t)buflen);
1.1 christos 175: if (buf == NULL) {
176: fprintf(file, ";; memory allocation failure\n");
177: return;
178: }
179:
180: opcode = (ns_opcode) ns_msg_getflag(*handle, ns_f_opcode);
181: rrnum = 0;
182: for (;;) {
183: if (ns_parserr(handle, section, rrnum, &rr)) {
184: if (errno != ENODEV)
185: fprintf(file, ";; ns_parserr: %s\n",
186: strerror(errno));
187: else if (rrnum > 0 && sflag != 0 &&
188: (statp->pfcode & RES_PRF_HEAD1))
189: putc('\n', file);
190: goto cleanup;
191: }
192: if (rrnum == 0 && sflag != 0 && (statp->pfcode & RES_PRF_HEAD1))
193: fprintf(file, ";; %s SECTION:\n",
194: p_section(section, opcode));
195: if (section == ns_s_qd)
196: fprintf(file, ";;\t%s, type = %s, class = %s\n",
197: ns_rr_name(rr),
198: p_type(ns_rr_type(rr)),
199: p_class(ns_rr_class(rr)));
200: else if (section == ns_s_ar && ns_rr_type(rr) == ns_t_opt) {
1.12 christos 201: size_t rdatalen, ttl;
202: uint16_t optcode, optlen;
203:
204: rdatalen = ns_rr_rdlen(rr);
205: ttl = ns_rr_ttl(rr);
1.10 christos 206:
1.1 christos 207: fprintf(file,
1.12 christos 208: "; EDNS: version: %zu, udp=%u, flags=%04zx\n",
1.1 christos 209: (ttl>>16)&0xff, ns_rr_class(rr), ttl&0xffff);
1.10 christos 210:
211: while (rdatalen >= 4) {
212: const u_char *cp = ns_rr_rdata(rr);
213: int i;
214:
215: GETSHORT(optcode, cp);
216: GETSHORT(optlen, cp);
217:
218: if (optcode == NS_OPT_NSID) {
219: fputs("; NSID: ", file);
220: if (optlen == 0) {
221: fputs("; NSID\n", file);
222: } else {
223: fputs("; NSID: ", file);
224: for (i = 0; i < optlen; i++)
225: fprintf(file, "%02x ",
226: cp[i]);
227: fputs(" (",file);
228: for (i = 0; i < optlen; i++)
229: fprintf(file, "%c",
230: isprint(cp[i])?
231: cp[i] : '.');
232: fputs(")\n", file);
233: }
234: } else {
235: if (optlen == 0) {
236: fprintf(file, "; OPT=%u\n",
237: optcode);
238: } else {
239: fprintf(file, "; OPT=%u: ",
240: optcode);
241: for (i = 0; i < optlen; i++)
242: fprintf(file, "%02x ",
243: cp[i]);
244: fputs(" (",file);
245: for (i = 0; i < optlen; i++)
246: fprintf(file, "%c",
247: isprint(cp[i]) ?
248: cp[i] : '.');
249: fputs(")\n", file);
250: }
251: }
252: rdatalen -= 4 + optlen;
253: }
1.1 christos 254: } else {
255: n = ns_sprintrr(handle, &rr, NULL, NULL,
1.2 christos 256: buf, (u_int)buflen);
1.1 christos 257: if (n < 0) {
258: if (errno == ENOSPC) {
259: free(buf);
260: buf = NULL;
261: if (buflen < 131072)
1.2 christos 262: buf = malloc((size_t)(buflen += 1024));
1.1 christos 263: if (buf == NULL) {
264: fprintf(file,
1.11 christos 265: ";; memory allocation failure\n");
1.1 christos 266: return;
267: }
268: continue;
269: }
270: fprintf(file, ";; ns_sprintrr: %s\n",
271: strerror(errno));
272: goto cleanup;
273: }
274: fputs(buf, file);
275: fputc('\n', file);
276: }
277: rrnum++;
278: }
279: cleanup:
280: if (buf != NULL)
281: free(buf);
282: }
283:
1.8 christos 284: /*%
1.1 christos 285: * Print the contents of a query.
286: * This is intended to be primarily a debugging routine.
287: */
288: void
289: res_pquery(const res_state statp, const u_char *msg, int len, FILE *file) {
290: ns_msg handle;
291: int qdcount, ancount, nscount, arcount;
292: u_int opcode, rcode, id;
293:
294: if (ns_initparse(msg, len, &handle) < 0) {
295: fprintf(file, ";; ns_initparse: %s\n", strerror(errno));
296: return;
297: }
298: opcode = ns_msg_getflag(handle, ns_f_opcode);
299: rcode = ns_msg_getflag(handle, ns_f_rcode);
300: id = ns_msg_id(handle);
301: qdcount = ns_msg_count(handle, ns_s_qd);
302: ancount = ns_msg_count(handle, ns_s_an);
303: nscount = ns_msg_count(handle, ns_s_ns);
304: arcount = ns_msg_count(handle, ns_s_ar);
305:
306: /*
307: * Print header fields.
308: */
309: if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEADX) || rcode)
310: fprintf(file,
311: ";; ->>HEADER<<- opcode: %s, status: %s, id: %d\n",
1.2 christos 312: _res_opcodes[opcode], p_rcode((int)rcode), id);
1.1 christos 313: if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEADX))
314: putc(';', file);
315: if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEAD2)) {
316: fprintf(file, "; flags:");
317: if (ns_msg_getflag(handle, ns_f_qr))
318: fprintf(file, " qr");
319: if (ns_msg_getflag(handle, ns_f_aa))
320: fprintf(file, " aa");
321: if (ns_msg_getflag(handle, ns_f_tc))
322: fprintf(file, " tc");
323: if (ns_msg_getflag(handle, ns_f_rd))
324: fprintf(file, " rd");
325: if (ns_msg_getflag(handle, ns_f_ra))
326: fprintf(file, " ra");
327: if (ns_msg_getflag(handle, ns_f_z))
328: fprintf(file, " ??");
329: if (ns_msg_getflag(handle, ns_f_ad))
330: fprintf(file, " ad");
331: if (ns_msg_getflag(handle, ns_f_cd))
332: fprintf(file, " cd");
333: }
334: if ((!statp->pfcode) || (statp->pfcode & RES_PRF_HEAD1)) {
335: fprintf(file, "; %s: %d",
1.2 christos 336: p_section(ns_s_qd, (int)opcode), qdcount);
1.1 christos 337: fprintf(file, ", %s: %d",
1.2 christos 338: p_section(ns_s_an, (int)opcode), ancount);
1.1 christos 339: fprintf(file, ", %s: %d",
1.2 christos 340: p_section(ns_s_ns, (int)opcode), nscount);
1.1 christos 341: fprintf(file, ", %s: %d",
1.2 christos 342: p_section(ns_s_ar, (int)opcode), arcount);
1.1 christos 343: }
1.11 christos 344: if ((!statp->pfcode) || (statp->pfcode &
1.1 christos 345: (RES_PRF_HEADX | RES_PRF_HEAD2 | RES_PRF_HEAD1))) {
346: putc('\n',file);
347: }
348: /*
349: * Print the various sections.
350: */
351: do_section(statp, &handle, ns_s_qd, RES_PRF_QUES, file);
352: do_section(statp, &handle, ns_s_an, RES_PRF_ANS, file);
353: do_section(statp, &handle, ns_s_ns, RES_PRF_AUTH, file);
354: do_section(statp, &handle, ns_s_ar, RES_PRF_ADD, file);
355: if (qdcount == 0 && ancount == 0 &&
356: nscount == 0 && arcount == 0)
357: putc('\n', file);
358: }
359:
360: const u_char *
361: p_cdnname(const u_char *cp, const u_char *msg, int len, FILE *file) {
362: char name[MAXDNAME];
363: int n;
364:
1.12 christos 365: if ((n = dn_expand(msg, msg + len, cp, name, (int)sizeof name)) < 0)
1.1 christos 366: return (NULL);
367: if (name[0] == '\0')
368: putc('.', file);
369: else
370: fputs(name, file);
371: return (cp + n);
372: }
373:
374: const u_char *
375: p_cdname(const u_char *cp, const u_char *msg, FILE *file) {
376: return (p_cdnname(cp, msg, PACKETSZ, file));
377: }
378:
1.8 christos 379: /*%
380: * Return a fully-qualified domain name from a compressed name (with
1.1 christos 381: length supplied). */
382:
383: const u_char *
1.13 abs 384: p_fqnname(const u_char *cp, const u_char *msg, int msglen, char *name,
385: int namelen)
1.1 christos 386: {
1.12 christos 387: int n;
388: size_t newlen;
1.1 christos 389:
390: if ((n = dn_expand(msg, cp + msglen, cp, name, namelen)) < 0)
391: return (NULL);
392: newlen = strlen(name);
393: if (newlen == 0 || name[newlen - 1] != '.') {
1.12 christos 394: if ((int)newlen + 1 >= namelen) /*%< Lack space for final dot */
1.1 christos 395: return (NULL);
396: else
397: strcpy(name + newlen, ".");
398: }
399: return (cp + n);
400: }
401:
402: /* XXX: the rest of these functions need to become length-limited, too. */
403:
404: const u_char *
405: p_fqname(const u_char *cp, const u_char *msg, FILE *file) {
406: char name[MAXDNAME];
407: const u_char *n;
408:
1.12 christos 409: n = p_fqnname(cp, msg, MAXCDNAME, name, (int)sizeof name);
1.1 christos 410: if (n == NULL)
411: return (NULL);
412: fputs(name, file);
413: return (n);
414: }
415:
1.8 christos 416: /*%
1.1 christos 417: * Names of RR classes and qclasses. Classes and qclasses are the same, except
418: * that C_ANY is a qclass but not a class. (You can ask for records of class
419: * C_ANY, but you can't have any records of that class in the database.)
420: */
421: const struct res_sym __p_class_syms[] = {
422: {C_IN, "IN", (char *)0},
423: {C_CHAOS, "CH", (char *)0},
424: {C_CHAOS, "CHAOS", (char *)0},
425: {C_HS, "HS", (char *)0},
426: {C_HS, "HESIOD", (char *)0},
427: {C_ANY, "ANY", (char *)0},
428: {C_NONE, "NONE", (char *)0},
429: {C_IN, (char *)0, (char *)0}
430: };
431:
1.8 christos 432: /*%
1.1 christos 433: * Names of message sections.
434: */
435: const struct res_sym __p_default_section_syms[] = {
436: {ns_s_qd, "QUERY", (char *)0},
437: {ns_s_an, "ANSWER", (char *)0},
438: {ns_s_ns, "AUTHORITY", (char *)0},
439: {ns_s_ar, "ADDITIONAL", (char *)0},
1.11 christos 440: {0, (char *)0, (char *)0}
1.1 christos 441: };
442:
443: const struct res_sym __p_update_section_syms[] = {
444: {S_ZONE, "ZONE", (char *)0},
445: {S_PREREQ, "PREREQUISITE", (char *)0},
446: {S_UPDATE, "UPDATE", (char *)0},
447: {S_ADDT, "ADDITIONAL", (char *)0},
1.11 christos 448: {0, (char *)0, (char *)0}
1.1 christos 449: };
450:
451: const struct res_sym __p_key_syms[] = {
452: {NS_ALG_MD5RSA, "RSA", "RSA KEY with MD5 hash"},
453: {NS_ALG_DH, "DH", "Diffie Hellman"},
454: {NS_ALG_DSA, "DSA", "Digital Signature Algorithm"},
455: {NS_ALG_EXPIRE_ONLY, "EXPIREONLY", "No algorithm"},
456: {NS_ALG_PRIVATE_OID, "PRIVATE", "Algorithm obtained from OID"},
457: {0, NULL, NULL}
458: };
459:
460: const struct res_sym __p_cert_syms[] = {
461: {cert_t_pkix, "PKIX", "PKIX (X.509v3) Certificate"},
462: {cert_t_spki, "SPKI", "SPKI certificate"},
463: {cert_t_pgp, "PGP", "PGP certificate"},
464: {cert_t_url, "URL", "URL Private"},
465: {cert_t_oid, "OID", "OID Private"},
466: {0, NULL, NULL}
467: };
468:
1.8 christos 469: /*%
1.1 christos 470: * Names of RR types and qtypes. Types and qtypes are the same, except
471: * that T_ANY is a qtype but not a type. (You can ask for records of type
472: * T_ANY, but you can't have any records of that type in the database.)
473: */
474: const struct res_sym __p_type_syms[] = {
475: {ns_t_a, "A", "address"},
476: {ns_t_ns, "NS", "name server"},
477: {ns_t_md, "MD", "mail destination (deprecated)"},
478: {ns_t_mf, "MF", "mail forwarder (deprecated)"},
479: {ns_t_cname, "CNAME", "canonical name"},
480: {ns_t_soa, "SOA", "start of authority"},
481: {ns_t_mb, "MB", "mailbox"},
482: {ns_t_mg, "MG", "mail group member"},
483: {ns_t_mr, "MR", "mail rename"},
484: {ns_t_null, "NULL", "null"},
485: {ns_t_wks, "WKS", "well-known service (deprecated)"},
486: {ns_t_ptr, "PTR", "domain name pointer"},
487: {ns_t_hinfo, "HINFO", "host information"},
488: {ns_t_minfo, "MINFO", "mailbox information"},
489: {ns_t_mx, "MX", "mail exchanger"},
490: {ns_t_txt, "TXT", "text"},
491: {ns_t_rp, "RP", "responsible person"},
492: {ns_t_afsdb, "AFSDB", "DCE or AFS server"},
493: {ns_t_x25, "X25", "X25 address"},
494: {ns_t_isdn, "ISDN", "ISDN address"},
495: {ns_t_rt, "RT", "router"},
496: {ns_t_nsap, "NSAP", "nsap address"},
497: {ns_t_nsap_ptr, "NSAP_PTR", "domain name pointer"},
498: {ns_t_sig, "SIG", "signature"},
499: {ns_t_key, "KEY", "key"},
500: {ns_t_px, "PX", "mapping information"},
501: {ns_t_gpos, "GPOS", "geographical position (withdrawn)"},
502: {ns_t_aaaa, "AAAA", "IPv6 address"},
503: {ns_t_loc, "LOC", "location"},
504: {ns_t_nxt, "NXT", "next valid name (unimplemented)"},
505: {ns_t_eid, "EID", "endpoint identifier (unimplemented)"},
506: {ns_t_nimloc, "NIMLOC", "NIMROD locator (unimplemented)"},
507: {ns_t_srv, "SRV", "server selection"},
508: {ns_t_atma, "ATMA", "ATM address (unimplemented)"},
1.11 christos 509: {ns_t_naptr, "NAPTR", "naptr"},
510: {ns_t_kx, "KX", "key exchange"},
511: {ns_t_cert, "CERT", "certificate"},
512: {ns_t_a6, "A", "IPv6 address (experminental)"},
513: {ns_t_dname, "DNAME", "non-terminal redirection"},
514: {ns_t_opt, "OPT", "opt"},
515: {ns_t_apl, "apl", "apl"},
516: {ns_t_ds, "DS", "delegation signer"},
517: {ns_t_sshfp, "SSFP", "SSH fingerprint"},
518: {ns_t_ipseckey, "IPSECKEY", "IPSEC key"},
519: {ns_t_rrsig, "RRSIG", "rrsig"},
520: {ns_t_nsec, "NSEC", "nsec"},
521: {ns_t_dnskey, "DNSKEY", "DNS key"},
522: {ns_t_dhcid, "DHCID", "dynamic host configuration identifier"},
523: {ns_t_nsec3, "NSEC3", "nsec3"},
524: {ns_t_nsec3param, "NSEC3PARAM", "NSEC3 parameters"},
525: {ns_t_hip, "HIP", "host identity protocol"},
526: {ns_t_spf, "SPF", "sender policy framework"},
1.1 christos 527: {ns_t_tkey, "TKEY", "tkey"},
528: {ns_t_tsig, "TSIG", "transaction signature"},
529: {ns_t_ixfr, "IXFR", "incremental zone transfer"},
530: {ns_t_axfr, "AXFR", "zone transfer"},
531: {ns_t_zxfr, "ZXFR", "compressed zone transfer"},
532: {ns_t_mailb, "MAILB", "mailbox-related data (deprecated)"},
533: {ns_t_maila, "MAILA", "mail agent (deprecated)"},
534: {ns_t_naptr, "NAPTR", "URN Naming Authority"},
535: {ns_t_kx, "KX", "Key Exchange"},
536: {ns_t_cert, "CERT", "Certificate"},
537: {ns_t_a6, "A6", "IPv6 Address"},
538: {ns_t_dname, "DNAME", "dname"},
539: {ns_t_sink, "SINK", "Kitchen Sink (experimental)"},
540: {ns_t_opt, "OPT", "EDNS Options"},
541: {ns_t_any, "ANY", "\"any\""},
1.11 christos 542: {ns_t_dlv, "DLV", "DNSSEC look-aside validation"},
1.1 christos 543: {0, NULL, NULL}
544: };
545:
1.8 christos 546: /*%
1.1 christos 547: * Names of DNS rcodes.
548: */
549: const struct res_sym __p_rcode_syms[] = {
550: {ns_r_noerror, "NOERROR", "no error"},
551: {ns_r_formerr, "FORMERR", "format error"},
552: {ns_r_servfail, "SERVFAIL", "server failed"},
553: {ns_r_nxdomain, "NXDOMAIN", "no such domain name"},
554: {ns_r_notimpl, "NOTIMP", "not implemented"},
555: {ns_r_refused, "REFUSED", "refused"},
556: {ns_r_yxdomain, "YXDOMAIN", "domain name exists"},
557: {ns_r_yxrrset, "YXRRSET", "rrset exists"},
558: {ns_r_nxrrset, "NXRRSET", "rrset doesn't exist"},
559: {ns_r_notauth, "NOTAUTH", "not authoritative"},
560: {ns_r_notzone, "NOTZONE", "Not in zone"},
561: {ns_r_max, "", ""},
562: {ns_r_badsig, "BADSIG", "bad signature"},
563: {ns_r_badkey, "BADKEY", "bad key"},
564: {ns_r_badtime, "BADTIME", "bad time"},
565: {0, NULL, NULL}
566: };
567:
568: int
569: sym_ston(const struct res_sym *syms, const char *name, int *success) {
1.3 christos 570: for (; syms->name != 0; syms++) {
1.1 christos 571: if (strcasecmp (name, syms->name) == 0) {
572: if (success)
573: *success = 1;
574: return (syms->number);
575: }
576: }
577: if (success)
578: *success = 0;
1.8 christos 579: return (syms->number); /*%< The default value. */
1.1 christos 580: }
581:
582: const char *
583: sym_ntos(const struct res_sym *syms, int number, int *success) {
1.8 christos 584: char *unname = sym_ntos_unname;
1.1 christos 585:
1.2 christos 586: for (; syms->name != 0; syms++) {
1.1 christos 587: if (number == syms->number) {
588: if (success)
589: *success = 1;
590: return (syms->name);
591: }
592: }
593:
1.8 christos 594: sprintf(unname, "%d", number); /*%< XXX nonreentrant */
1.1 christos 595: if (success)
596: *success = 0;
597: return (unname);
598: }
599:
600: const char *
601: sym_ntop(const struct res_sym *syms, int number, int *success) {
1.8 christos 602: char *unname = sym_ntop_unname;
1.1 christos 603:
1.2 christos 604: for (; syms->name != 0; syms++) {
1.1 christos 605: if (number == syms->number) {
606: if (success)
607: *success = 1;
608: return (syms->humanname);
609: }
610: }
1.8 christos 611: sprintf(unname, "%d", number); /*%< XXX nonreentrant */
1.1 christos 612: if (success)
613: *success = 0;
614: return (unname);
615: }
616:
1.8 christos 617: /*%
1.1 christos 618: * Return a string for the type.
619: */
620: const char *
621: p_type(int type) {
622: int success;
623: const char *result;
624: static char typebuf[20];
625:
626: result = sym_ntos(__p_type_syms, type, &success);
627: if (success)
628: return (result);
1.7 christos 629: if (type < 0 || type > 0xffff)
1.1 christos 630: return ("BADTYPE");
631: sprintf(typebuf, "TYPE%d", type);
632: return (typebuf);
633: }
634:
1.8 christos 635: /*%
1.1 christos 636: * Return a string for the type.
637: */
638: const char *
639: p_section(int section, int opcode) {
640: const struct res_sym *symbols;
641:
642: switch (opcode) {
643: case ns_o_update:
644: symbols = __p_update_section_syms;
645: break;
646: default:
647: symbols = __p_default_section_syms;
648: break;
649: }
650: return (sym_ntos(symbols, section, (int *)0));
651: }
652:
1.8 christos 653: /*%
1.1 christos 654: * Return a mnemonic for class.
655: */
656: const char *
657: p_class(int class) {
658: int success;
659: const char *result;
660: static char classbuf[20];
661:
662: result = sym_ntos(__p_class_syms, class, &success);
663: if (success)
664: return (result);
1.7 christos 665: if (class < 0 || class > 0xffff)
1.1 christos 666: return ("BADCLASS");
667: sprintf(classbuf, "CLASS%d", class);
668: return (classbuf);
669: }
670:
1.8 christos 671: /*%
1.1 christos 672: * Return a mnemonic for an option
673: */
674: const char *
675: p_option(u_long option) {
1.8 christos 676: char *nbuf = p_option_nbuf;
1.1 christos 677:
678: switch (option) {
679: case RES_INIT: return "init";
680: case RES_DEBUG: return "debug";
681: case RES_AAONLY: return "aaonly(unimpl)";
682: case RES_USEVC: return "usevc";
683: case RES_PRIMARY: return "primry(unimpl)";
684: case RES_IGNTC: return "igntc";
685: case RES_RECURSE: return "recurs";
686: case RES_DEFNAMES: return "defnam";
687: case RES_STAYOPEN: return "styopn";
688: case RES_DNSRCH: return "dnsrch";
689: case RES_INSECURE1: return "insecure1";
690: case RES_INSECURE2: return "insecure2";
691: case RES_NOALIASES: return "noaliases";
692: case RES_USE_INET6: return "inet6";
1.8 christos 693: #ifdef RES_USE_EDNS0 /*%< KAME extension */
1.1 christos 694: case RES_USE_EDNS0: return "edns0";
1.10 christos 695: case RES_NSID: return "nsid";
1.1 christos 696: #endif
697: #ifdef RES_USE_DNAME
698: case RES_USE_DNAME: return "dname";
699: #endif
700: #ifdef RES_USE_DNSSEC
701: case RES_USE_DNSSEC: return "dnssec";
702: #endif
703: #ifdef RES_NOTLDQUERY
704: case RES_NOTLDQUERY: return "no-tld-query";
705: #endif
706: #ifdef RES_NO_NIBBLE2
707: case RES_NO_NIBBLE2: return "no-nibble2";
708: #endif
709: /* XXX nonreentrant */
710: default: sprintf(nbuf, "?0x%lx?", (u_long)option);
711: return (nbuf);
712: }
713: }
714:
1.8 christos 715: /*%
1.1 christos 716: * Return a mnemonic for a time to live.
717: */
718: const char *
719: p_time(u_int32_t value) {
1.8 christos 720: char *nbuf = p_time_nbuf;
1.1 christos 721:
1.2 christos 722: if (ns_format_ttl((u_long)value, nbuf, sizeof nbuf) < 0)
1.1 christos 723: sprintf(nbuf, "%u", value);
724: return (nbuf);
725: }
726:
1.8 christos 727: /*%
1.1 christos 728: * Return a string for the rcode.
729: */
730: const char *
731: p_rcode(int rcode) {
732: return (sym_ntos(__p_rcode_syms, rcode, (int *)0));
733: }
734:
1.8 christos 735: /*%
1.1 christos 736: * Return a string for a res_sockaddr_union.
737: */
738: const char *
739: p_sockun(union res_sockaddr_union u, char *buf, size_t size) {
740: char ret[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:123.123.123.123"];
741:
742: switch (u.sin.sin_family) {
743: case AF_INET:
1.12 christos 744: inet_ntop(AF_INET, &u.sin.sin_addr, ret, (socklen_t)sizeof ret);
1.1 christos 745: break;
746: #ifdef HAS_INET6_STRUCTS
747: case AF_INET6:
748: inet_ntop(AF_INET6, &u.sin6.sin6_addr, ret, sizeof ret);
749: break;
750: #endif
751: default:
752: sprintf(ret, "[af%d]", u.sin.sin_family);
753: break;
754: }
755: if (size > 0U) {
756: strncpy(buf, ret, size - 1);
757: buf[size - 1] = '0';
758: }
759: return (buf);
760: }
761:
1.8 christos 762: /*%
1.1 christos 763: * routines to convert between on-the-wire RR format and zone file format.
764: * Does not contain conversion to/from decimal degrees; divide or multiply
765: * by 60*60*1000 for that.
766: */
767:
768: static unsigned int poweroften[10] = {1, 10, 100, 1000, 10000, 100000,
769: 1000000,10000000,100000000,1000000000};
770:
1.8 christos 771: /*% takes an XeY precision/size value, returns a string representation. */
1.1 christos 772: static const char *
1.10 christos 773: precsize_ntoa(u_int32_t prec)
1.1 christos 774: {
1.8 christos 775: char *retbuf = precsize_ntoa_retbuf;
1.1 christos 776: unsigned long val;
777: int mantissa, exponent;
778:
779: mantissa = (int)((prec >> 4) & 0x0f) % 10;
780: exponent = (int)((prec >> 0) & 0x0f) % 10;
781:
782: val = mantissa * poweroften[exponent];
783:
784: (void) sprintf(retbuf, "%lu.%.2lu", val/100, val%100);
785: return (retbuf);
786: }
787:
1.8 christos 788: /*% converts ascii size/precision X * 10**Y(cm) to 0xXY. moves pointer. */
1.1 christos 789: static u_int8_t
790: precsize_aton(const char **strptr) {
791: unsigned int mval = 0, cmval = 0;
792: u_int8_t retval = 0;
793: const char *cp;
794: int exponent;
795: int mantissa;
796:
797: cp = *strptr;
798:
799: while (isdigit((unsigned char)*cp))
800: mval = mval * 10 + (*cp++ - '0');
801:
1.8 christos 802: if (*cp == '.') { /*%< centimeters */
1.1 christos 803: cp++;
804: if (isdigit((unsigned char)*cp)) {
805: cmval = (*cp++ - '0') * 10;
806: if (isdigit((unsigned char)*cp)) {
807: cmval += (*cp++ - '0');
808: }
809: }
810: }
811: cmval = (mval * 100) + cmval;
812:
813: for (exponent = 0; exponent < 9; exponent++)
814: if (cmval < poweroften[exponent+1])
815: break;
816:
817: mantissa = cmval / poweroften[exponent];
818: if (mantissa > 9)
819: mantissa = 9;
820:
821: retval = (mantissa << 4) | exponent;
822:
823: *strptr = cp;
824:
825: return (retval);
826: }
827:
1.8 christos 828: /*% converts ascii lat/lon to unsigned encoded 32-bit number. moves pointer. */
1.1 christos 829: static u_int32_t
830: latlon2ul(const char **latlonstrptr, int *which) {
831: const char *cp;
832: u_int32_t retval;
833: int deg = 0, min = 0, secs = 0, secsfrac = 0;
834:
835: cp = *latlonstrptr;
836:
837: while (isdigit((unsigned char)*cp))
838: deg = deg * 10 + (*cp++ - '0');
839:
840: while (isspace((unsigned char)*cp))
841: cp++;
842:
843: if (!(isdigit((unsigned char)*cp)))
844: goto fndhemi;
845:
846: while (isdigit((unsigned char)*cp))
847: min = min * 10 + (*cp++ - '0');
848:
849: while (isspace((unsigned char)*cp))
850: cp++;
851:
852: if (!(isdigit((unsigned char)*cp)))
853: goto fndhemi;
854:
855: while (isdigit((unsigned char)*cp))
856: secs = secs * 10 + (*cp++ - '0');
857:
1.8 christos 858: if (*cp == '.') { /*%< decimal seconds */
1.1 christos 859: cp++;
860: if (isdigit((unsigned char)*cp)) {
861: secsfrac = (*cp++ - '0') * 100;
862: if (isdigit((unsigned char)*cp)) {
863: secsfrac += (*cp++ - '0') * 10;
864: if (isdigit((unsigned char)*cp)) {
865: secsfrac += (*cp++ - '0');
866: }
867: }
868: }
869: }
870:
1.8 christos 871: while (!isspace((unsigned char)*cp)) /*%< if any trailing garbage */
1.1 christos 872: cp++;
873:
874: while (isspace((unsigned char)*cp))
875: cp++;
876:
877: fndhemi:
878: switch (*cp) {
879: case 'N': case 'n':
880: case 'E': case 'e':
881: retval = ((unsigned)1<<31)
882: + (((((deg * 60) + min) * 60) + secs) * 1000)
883: + secsfrac;
884: break;
885: case 'S': case 's':
886: case 'W': case 'w':
887: retval = ((unsigned)1<<31)
888: - (((((deg * 60) + min) * 60) + secs) * 1000)
889: - secsfrac;
890: break;
891: default:
1.8 christos 892: retval = 0; /*%< invalid value -- indicates error */
1.1 christos 893: break;
894: }
895:
896: switch (*cp) {
897: case 'N': case 'n':
898: case 'S': case 's':
1.8 christos 899: *which = 1; /*%< latitude */
1.1 christos 900: break;
901: case 'E': case 'e':
902: case 'W': case 'w':
1.8 christos 903: *which = 2; /*%< longitude */
1.1 christos 904: break;
905: default:
1.8 christos 906: *which = 0; /*%< error */
1.1 christos 907: break;
908: }
909:
1.8 christos 910: cp++; /*%< skip the hemisphere */
911: while (!isspace((unsigned char)*cp)) /*%< if any trailing garbage */
1.1 christos 912: cp++;
913:
1.8 christos 914: while (isspace((unsigned char)*cp)) /*%< move to next field */
1.1 christos 915: cp++;
916:
917: *latlonstrptr = cp;
918:
919: return (retval);
920: }
921:
1.8 christos 922: /*%
923: * converts a zone file representation in a string to an RDATA on-the-wire
1.1 christos 924: * representation. */
925: int
1.13 abs 926: loc_aton(const char *ascii, u_char *binary)
1.1 christos 927: {
928: const char *cp, *maxcp;
929: u_char *bcp;
930:
931: u_int32_t latit = 0, longit = 0, alt = 0;
932: u_int32_t lltemp1 = 0, lltemp2 = 0;
933: int altmeters = 0, altfrac = 0, altsign = 1;
1.8 christos 934: u_int8_t hp = 0x16; /*%< default = 1e6 cm = 10000.00m = 10km */
935: u_int8_t vp = 0x13; /*%< default = 1e3 cm = 10.00m */
936: u_int8_t siz = 0x12; /*%< default = 1e2 cm = 1.00m */
1.1 christos 937: int which1 = 0, which2 = 0;
938:
939: cp = ascii;
940: maxcp = cp + strlen(ascii);
941:
942: lltemp1 = latlon2ul(&cp, &which1);
943:
944: lltemp2 = latlon2ul(&cp, &which2);
945:
946: switch (which1 + which2) {
1.8 christos 947: case 3: /*%< 1 + 2, the only valid combination */
948: if ((which1 == 1) && (which2 == 2)) { /*%< normal case */
1.1 christos 949: latit = lltemp1;
950: longit = lltemp2;
1.8 christos 951: } else if ((which1 == 2) && (which2 == 1)) { /*%< reversed */
1.1 christos 952: longit = lltemp1;
953: latit = lltemp2;
1.8 christos 954: } else { /*%< some kind of brokenness */
1.1 christos 955: return (0);
956: }
957: break;
1.8 christos 958: default: /*%< we didn't get one of each */
1.1 christos 959: return (0);
960: }
961:
962: /* altitude */
963: if (*cp == '-') {
964: altsign = -1;
965: cp++;
966: }
1.11 christos 967:
1.1 christos 968: if (*cp == '+')
969: cp++;
970:
971: while (isdigit((unsigned char)*cp))
972: altmeters = altmeters * 10 + (*cp++ - '0');
973:
1.8 christos 974: if (*cp == '.') { /*%< decimal meters */
1.1 christos 975: cp++;
976: if (isdigit((unsigned char)*cp)) {
977: altfrac = (*cp++ - '0') * 10;
978: if (isdigit((unsigned char)*cp)) {
979: altfrac += (*cp++ - '0');
980: }
981: }
982: }
983:
984: alt = (10000000 + (altsign * (altmeters * 100 + altfrac)));
985:
1.8 christos 986: while (!isspace((unsigned char)*cp) && (cp < maxcp)) /*%< if trailing garbage or m */
1.1 christos 987: cp++;
988:
989: while (isspace((unsigned char)*cp) && (cp < maxcp))
990: cp++;
991:
992: if (cp >= maxcp)
993: goto defaults;
994:
995: siz = precsize_aton(&cp);
1.11 christos 996:
1.8 christos 997: while (!isspace((unsigned char)*cp) && (cp < maxcp)) /*%< if trailing garbage or m */
1.1 christos 998: cp++;
999:
1000: while (isspace((unsigned char)*cp) && (cp < maxcp))
1001: cp++;
1002:
1003: if (cp >= maxcp)
1004: goto defaults;
1005:
1006: hp = precsize_aton(&cp);
1007:
1.8 christos 1008: while (!isspace((unsigned char)*cp) && (cp < maxcp)) /*%< if trailing garbage or m */
1.1 christos 1009: cp++;
1010:
1011: while (isspace((unsigned char)*cp) && (cp < maxcp))
1012: cp++;
1013:
1014: if (cp >= maxcp)
1015: goto defaults;
1016:
1017: vp = precsize_aton(&cp);
1018:
1019: defaults:
1020:
1021: bcp = binary;
1.8 christos 1022: *bcp++ = (u_int8_t) 0; /*%< version byte */
1.1 christos 1023: *bcp++ = siz;
1024: *bcp++ = hp;
1025: *bcp++ = vp;
1026: PUTLONG(latit,bcp);
1027: PUTLONG(longit,bcp);
1028: PUTLONG(alt,bcp);
1.11 christos 1029:
1.8 christos 1030: return (16); /*%< size of RR in octets */
1.1 christos 1031: }
1032:
1.8 christos 1033: /*% takes an on-the-wire LOC RR and formats it in a human readable format. */
1.1 christos 1034: const char *
1.13 abs 1035: loc_ntoa(const u_char *binary, char *ascii)
1.1 christos 1036: {
1037: static const char *error = "?";
1038: static char tmpbuf[sizeof
1039: "1000 60 60.000 N 1000 60 60.000 W -12345678.00m 90000000.00m 90000000.00m 90000000.00m"];
1040: const u_char *cp = binary;
1041:
1042: int latdeg, latmin, latsec, latsecfrac;
1043: int longdeg, longmin, longsec, longsecfrac;
1044: char northsouth, eastwest;
1045: const char *altsign;
1046: int altmeters, altfrac;
1047:
1048: const u_int32_t referencealt = 100000 * 100;
1049:
1050: int32_t latval, longval, altval;
1051: u_int32_t templ;
1052: u_int8_t sizeval, hpval, vpval, versionval;
1.11 christos 1053:
1.1 christos 1054: char *sizestr, *hpstr, *vpstr;
1055:
1056: versionval = *cp++;
1057:
1058: if (ascii == NULL)
1059: ascii = tmpbuf;
1060:
1061: if (versionval) {
1062: (void) sprintf(ascii, "; error: unknown LOC RR version");
1063: return (ascii);
1064: }
1065:
1066: sizeval = *cp++;
1067:
1068: hpval = *cp++;
1069: vpval = *cp++;
1070:
1071: GETLONG(templ, cp);
1072: latval = (templ - ((unsigned)1<<31));
1073:
1074: GETLONG(templ, cp);
1075: longval = (templ - ((unsigned)1<<31));
1076:
1077: GETLONG(templ, cp);
1.8 christos 1078: if (templ < referencealt) { /*%< below WGS 84 spheroid */
1.1 christos 1079: altval = referencealt - templ;
1080: altsign = "-";
1081: } else {
1082: altval = templ - referencealt;
1083: altsign = "";
1084: }
1085:
1086: if (latval < 0) {
1087: northsouth = 'S';
1088: latval = -latval;
1089: } else
1090: northsouth = 'N';
1091:
1092: latsecfrac = latval % 1000;
1093: latval = latval / 1000;
1094: latsec = latval % 60;
1095: latval = latval / 60;
1096: latmin = latval % 60;
1097: latval = latval / 60;
1098: latdeg = latval;
1099:
1100: if (longval < 0) {
1101: eastwest = 'W';
1102: longval = -longval;
1103: } else
1104: eastwest = 'E';
1105:
1106: longsecfrac = longval % 1000;
1107: longval = longval / 1000;
1108: longsec = longval % 60;
1109: longval = longval / 60;
1110: longmin = longval % 60;
1111: longval = longval / 60;
1112: longdeg = longval;
1113:
1114: altfrac = altval % 100;
1115: altmeters = (altval / 100);
1116:
1.2 christos 1117: sizestr = strdup(precsize_ntoa((u_int32_t)sizeval));
1118: hpstr = strdup(precsize_ntoa((u_int32_t)hpval));
1119: vpstr = strdup(precsize_ntoa((u_int32_t)vpval));
1.1 christos 1120:
1121: sprintf(ascii,
1122: "%d %.2d %.2d.%.3d %c %d %.2d %.2d.%.3d %c %s%d.%.2dm %sm %sm %sm",
1123: latdeg, latmin, latsec, latsecfrac, northsouth,
1124: longdeg, longmin, longsec, longsecfrac, eastwest,
1125: altsign, altmeters, altfrac,
1126: (sizestr != NULL) ? sizestr : error,
1127: (hpstr != NULL) ? hpstr : error,
1128: (vpstr != NULL) ? vpstr : error);
1129:
1130: if (sizestr != NULL)
1131: free(sizestr);
1132: if (hpstr != NULL)
1133: free(hpstr);
1134: if (vpstr != NULL)
1135: free(vpstr);
1136:
1137: return (ascii);
1138: }
1139:
1140:
1.8 christos 1141: /*% Return the number of DNS hierarchy levels in the name. */
1.1 christos 1142: int
1143: dn_count_labels(const char *name) {
1.12 christos 1144: size_t len, i, count;
1.1 christos 1145:
1146: len = strlen(name);
1147: for (i = 0, count = 0; i < len; i++) {
1148: /* XXX need to check for \. or use named's nlabels(). */
1149: if (name[i] == '.')
1150: count++;
1151: }
1152:
1153: /* don't count initial wildcard */
1154: if (name[0] == '*')
1155: if (count)
1156: count--;
1157:
1158: /* don't count the null label for root. */
1159: /* if terminating '.' not found, must adjust */
1160: /* count to include last label */
1161: if (len > 0 && name[len-1] != '.')
1162: count++;
1.12 christos 1163: _DIAGASSERT(__type_fit(int, count));
1164: return (int)count;
1.1 christos 1165: }
1166:
1.8 christos 1167: /*%
1.11 christos 1168: * Make dates expressed in seconds-since-Jan-1-1970 easy to read.
1.1 christos 1169: * SIG records are required to be printed like this, by the Secure DNS RFC.
1170: */
1171: char *
1172: p_secstodate (u_long secs) {
1173: /* XXX nonreentrant */
1.8 christos 1174: char *output = p_secstodate_output;
1.2 christos 1175: time_t myclock = secs;
1176: struct tm *mytime;
1.1 christos 1177: #ifdef HAVE_TIME_R
1178: struct tm res;
1179:
1.2 christos 1180: mytime = gmtime_r(&myclock, &res);
1.1 christos 1181: #else
1.2 christos 1182: mytime = gmtime(&myclock);
1.1 christos 1183: #endif
1.2 christos 1184: mytime->tm_year += 1900;
1185: mytime->tm_mon += 1;
1.1 christos 1186: sprintf(output, "%04d%02d%02d%02d%02d%02d",
1.2 christos 1187: mytime->tm_year, mytime->tm_mon, mytime->tm_mday,
1188: mytime->tm_hour, mytime->tm_min, mytime->tm_sec);
1.1 christos 1189: return (output);
1190: }
1191:
1192: u_int16_t
1193: res_nametoclass(const char *buf, int *successp) {
1194: unsigned long result;
1195: char *endptr;
1196: int success;
1197:
1198: result = sym_ston(__p_class_syms, buf, &success);
1199: if (success)
1200: goto done;
1201:
1202: if (strncasecmp(buf, "CLASS", 5) != 0 ||
1203: !isdigit((unsigned char)buf[5]))
1204: goto done;
1205: errno = 0;
1206: result = strtoul(buf + 5, &endptr, 10);
1207: if (errno == 0 && *endptr == '\0' && result <= 0xffffU)
1208: success = 1;
1209: done:
1210: if (successp)
1211: *successp = success;
1.2 christos 1212: return (u_int16_t)(result);
1.1 christos 1213: }
1214:
1215: u_int16_t
1216: res_nametotype(const char *buf, int *successp) {
1217: unsigned long result;
1218: char *endptr;
1219: int success;
1220:
1221: result = sym_ston(__p_type_syms, buf, &success);
1222: if (success)
1223: goto done;
1224:
1225: if (strncasecmp(buf, "type", 4) != 0 ||
1226: !isdigit((unsigned char)buf[4]))
1227: goto done;
1228: errno = 0;
1229: result = strtoul(buf + 4, &endptr, 10);
1230: if (errno == 0 && *endptr == '\0' && result <= 0xffffU)
1231: success = 1;
1232: done:
1233: if (successp)
1234: *successp = success;
1.2 christos 1235: return (u_int16_t)(result);
1.1 christos 1236: }
1.8 christos 1237:
1238: /*! \file */
CVSweb <webmaster@jp.NetBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to res_debug.c CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [cvs.NetBSD.org] / src / lib / libc / resolv