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-rw-r--r--src/lib/libc/net/res_debug.c1503
1 files changed, 1157 insertions, 346 deletions
diff --git a/src/lib/libc/net/res_debug.c b/src/lib/libc/net/res_debug.c
index d841293f18..2ea9173fe9 100644
--- a/src/lib/libc/net/res_debug.c
+++ b/src/lib/libc/net/res_debug.c
@@ -1,9 +1,11 @@
1/* $NetBSD: res_debug.c,v 1.7 1995/02/25 06:20:56 cgd Exp $ */ 1/* $OpenBSD: res_debug.c,v 1.14 2002/07/25 21:55:30 deraadt Exp $ */
2 2
3/*- 3/*
4 * ++Copyright++ 1985, 1990, 1993
5 * -
4 * Copyright (c) 1985, 1990, 1993 6 * Copyright (c) 1985, 1990, 1993
5 * The Regents of the University of California. All rights reserved. 7 * The Regents of the University of California. All rights reserved.
6 * 8 *
7 * Redistribution and use in source and binary forms, with or without 9 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions 10 * modification, are permitted provided that the following conditions
9 * are met: 11 * are met:
@@ -50,174 +52,191 @@
50 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 52 * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
51 * SOFTWARE. 53 * SOFTWARE.
52 * - 54 * -
55 * Portions Copyright (c) 1995 by International Business Machines, Inc.
56 *
57 * International Business Machines, Inc. (hereinafter called IBM) grants
58 * permission under its copyrights to use, copy, modify, and distribute this
59 * Software with or without fee, provided that the above copyright notice and
60 * all paragraphs of this notice appear in all copies, and that the name of IBM
61 * not be used in connection with the marketing of any product incorporating
62 * the Software or modifications thereof, without specific, written prior
63 * permission.
64 *
65 * To the extent it has a right to do so, IBM grants an immunity from suit
66 * under its patents, if any, for the use, sale or manufacture of products to
67 * the extent that such products are used for performing Domain Name System
68 * dynamic updates in TCP/IP networks by means of the Software. No immunity is
69 * granted for any product per se or for any other function of any product.
70 *
71 * THE SOFTWARE IS PROVIDED "AS IS", AND IBM DISCLAIMS ALL WARRANTIES,
72 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
73 * PARTICULAR PURPOSE. IN NO EVENT SHALL IBM BE LIABLE FOR ANY SPECIAL,
74 * DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER ARISING
75 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE, EVEN
76 * IF IBM IS APPRISED OF THE POSSIBILITY OF SUCH DAMAGES.
53 * --Copyright-- 77 * --Copyright--
54 */ 78 */
55 79
56#if defined(LIBC_SCCS) && !defined(lint) 80#if defined(LIBC_SCCS) && !defined(lint)
57#if 0 81#if 0
58static char sccsid[] = "@(#)res_debug.c 8.1 (Berkeley) 6/4/93"; 82static char sccsid[] = "@(#)res_debug.c 8.1 (Berkeley) 6/4/93";
83static char rcsid[] = "$From: res_debug.c,v 8.19 1996/11/26 10:11:23 vixie Exp $";
59#else 84#else
60static char rcsid[] = "$NetBSD: res_debug.c,v 1.7 1995/02/25 06:20:56 cgd Exp $"; 85static char rcsid[] = "$OpenBSD: res_debug.c,v 1.14 2002/07/25 21:55:30 deraadt Exp $";
61#endif 86#endif
62#endif /* LIBC_SCCS and not lint */ 87#endif /* LIBC_SCCS and not lint */
63 88
64#include <sys/param.h> 89#include <sys/param.h>
90#include <sys/types.h>
91#include <sys/socket.h>
65#include <netinet/in.h> 92#include <netinet/in.h>
66#include <arpa/inet.h> 93#include <arpa/inet.h>
67#include <arpa/nameser.h> 94#include <arpa/nameser.h>
95
96#include <ctype.h>
97#include <netdb.h>
68#include <resolv.h> 98#include <resolv.h>
69#include <stdio.h> 99#include <stdio.h>
70#include <string.h> 100#include <time.h>
71 101
72void __fp_query(); 102#include <stdlib.h>
73char *__p_class(), *__p_time(), *__p_type(); 103#include <string.h>
74char *p_cdname(), *p_fqname(), *p_rr();
75static char *p_option __P((u_int32_t));
76
77char *_res_opcodes[] = {
78 "QUERY",
79 "IQUERY",
80 "CQUERYM",
81 "CQUERYU",
82 "4",
83 "5",
84 "6",
85 "7",
86 "8",
87 "UPDATEA",
88 "UPDATED",
89 "UPDATEDA",
90 "UPDATEM",
91 "UPDATEMA",
92 "ZONEINIT",
93 "ZONEREF",
94};
95 104
96char *_res_resultcodes[] = { 105extern const char *_res_opcodes[];
97 "NOERROR", 106extern const char *_res_resultcodes[];
98 "FORMERR",
99 "SERVFAIL",
100 "NXDOMAIN",
101 "NOTIMP",
102 "REFUSED",
103 "6",
104 "7",
105 "8",
106 "9",
107 "10",
108 "11",
109 "12",
110 "13",
111 "14",
112 "NOCHANGE",
113};
114 107
115static char retbuf[16]; 108static const char *loc_ntoal(const u_char *binary, char *ascii, int ascii_len);
116 109
117static char * 110/* XXX: we should use getservbyport() instead. */
111static const char *
118dewks(wks) 112dewks(wks)
119 int wks; 113 int wks;
120{ 114{
115 static char nbuf[20];
116
121 switch (wks) { 117 switch (wks) {
122 case 5: return("rje"); 118 case 5: return "rje";
123 case 7: return("echo"); 119 case 7: return "echo";
124 case 9: return("discard"); 120 case 9: return "discard";
125 case 11: return("systat"); 121 case 11: return "systat";
126 case 13: return("daytime"); 122 case 13: return "daytime";
127 case 15: return("netstat"); 123 case 15: return "netstat";
128 case 17: return("qotd"); 124 case 17: return "qotd";
129 case 19: return("chargen"); 125 case 19: return "chargen";
130 case 20: return("ftp-data"); 126 case 20: return "ftp-data";
131 case 21: return("ftp"); 127 case 21: return "ftp";
132 case 23: return("telnet"); 128 case 23: return "telnet";
133 case 25: return("smtp"); 129 case 25: return "smtp";
134 case 37: return("time"); 130 case 37: return "time";
135 case 39: return("rlp"); 131 case 39: return "rlp";
136 case 42: return("name"); 132 case 42: return "name";
137 case 43: return("whois"); 133 case 43: return "whois";
138 case 53: return("domain"); 134 case 53: return "domain";
139 case 57: return("apts"); 135 case 57: return "apts";
140 case 59: return("apfs"); 136 case 59: return "apfs";
141 case 67: return("bootps"); 137 case 67: return "bootps";
142 case 68: return("bootpc"); 138 case 68: return "bootpc";
143 case 69: return("tftp"); 139 case 69: return "tftp";
144 case 77: return("rje"); 140 case 77: return "rje";
145 case 79: return("finger"); 141 case 79: return "finger";
146 case 87: return("link"); 142 case 87: return "link";
147 case 95: return("supdup"); 143 case 95: return "supdup";
148 case 100: return("newacct"); 144 case 100: return "newacct";
149 case 101: return("hostnames"); 145 case 101: return "hostnames";
150 case 102: return("iso-tsap"); 146 case 102: return "iso-tsap";
151 case 103: return("x400"); 147 case 103: return "x400";
152 case 104: return("x400-snd"); 148 case 104: return "x400-snd";
153 case 105: return("csnet-ns"); 149 case 105: return "csnet-ns";
154 case 109: return("pop-2"); 150 case 109: return "pop-2";
155 case 111: return("sunrpc"); 151 case 111: return "sunrpc";
156 case 113: return("auth"); 152 case 113: return "auth";
157 case 115: return("sftp"); 153 case 115: return "sftp";
158 case 117: return("uucp-path"); 154 case 117: return "uucp-path";
159 case 119: return("nntp"); 155 case 119: return "nntp";
160 case 121: return("erpc"); 156 case 121: return "erpc";
161 case 123: return("ntp"); 157 case 123: return "ntp";
162 case 133: return("statsrv"); 158 case 133: return "statsrv";
163 case 136: return("profile"); 159 case 136: return "profile";
164 case 144: return("NeWS"); 160 case 144: return "NeWS";
165 case 161: return("snmp"); 161 case 161: return "snmp";
166 case 162: return("snmp-trap"); 162 case 162: return "snmp-trap";
167 case 170: return("print-srv"); 163 case 170: return "print-srv";
168 default: (void) sprintf(retbuf, "%d", wks); return(retbuf); 164 default:
165 (void) snprintf(nbuf, sizeof nbuf, "%d", wks);
166 return (nbuf);
169 } 167 }
170} 168}
171 169
172static char * 170/* XXX: we should use getprotobynumber() instead. */
171static const char *
173deproto(protonum) 172deproto(protonum)
174 int protonum; 173 int protonum;
175{ 174{
175 static char nbuf[20];
176
176 switch (protonum) { 177 switch (protonum) {
177 case 1: return("icmp"); 178 case 1: return "icmp";
178 case 2: return("igmp"); 179 case 2: return "igmp";
179 case 3: return("ggp"); 180 case 3: return "ggp";
180 case 5: return("st"); 181 case 5: return "st";
181 case 6: return("tcp"); 182 case 6: return "tcp";
182 case 7: return("ucl"); 183 case 7: return "ucl";
183 case 8: return("egp"); 184 case 8: return "egp";
184 case 9: return("igp"); 185 case 9: return "igp";
185 case 11: return("nvp-II"); 186 case 11: return "nvp-II";
186 case 12: return("pup"); 187 case 12: return "pup";
187 case 16: return("chaos"); 188 case 16: return "chaos";
188 case 17: return("udp"); 189 case 17: return "udp";
189 default: (void) sprintf(retbuf, "%d", protonum); return(retbuf); 190 default:
191 (void) snprintf(nbuf, sizeof nbuf, "%d", protonum);
192 return (nbuf);
190 } 193 }
191} 194}
192 195
193static char * 196static const u_char *
194do_rrset(msg, cp, cnt, pflag, file, hs) 197do_rrset(msg, len, cp, cnt, pflag, file, hs)
195 int cnt, pflag; 198 int cnt, pflag, len;
196 char *cp,*msg, *hs; 199 const u_char *cp, *msg;
200 const char *hs;
197 FILE *file; 201 FILE *file;
198{ 202{
199 int n; 203 int n;
200 int sflag; 204 int sflag;
205
201 /* 206 /*
202 * Print answer records 207 * Print answer records.
203 */ 208 */
204 sflag = (_res.pfcode & pflag); 209 sflag = (_res.pfcode & pflag);
205 if (n = ntohs(cnt)) { 210 if ((n = ntohs(cnt))) {
206 if ((!_res.pfcode) || ((sflag) && (_res.pfcode & RES_PRF_HEAD1))) 211 if ((!_res.pfcode) ||
207 fprintf(file, hs); 212 ((sflag) && (_res.pfcode & RES_PRF_HEAD1)))
213 fprintf(file, "%s", hs);
208 while (--n >= 0) { 214 while (--n >= 0) {
209 cp = p_rr(cp, msg, file); 215 if ((!_res.pfcode) || sflag) {
210 if ((cp-msg) > PACKETSZ) 216 cp = p_rr(cp, msg, file);
217 } else {
218 unsigned int dlen;
219 cp += __dn_skipname(cp, cp + MAXCDNAME);
220 cp += INT16SZ;
221 cp += INT16SZ;
222 cp += INT32SZ;
223 dlen = _getshort((u_char*)cp);
224 cp += INT16SZ;
225 cp += dlen;
226 }
227 if ((cp - msg) > len)
211 return (NULL); 228 return (NULL);
212 } 229 }
213 if ((!_res.pfcode) || ((sflag) && (_res.pfcode & RES_PRF_HEAD1))) 230 if ((!_res.pfcode) ||
231 ((sflag) && (_res.pfcode & RES_PRF_HEAD1)))
214 putc('\n', file); 232 putc('\n', file);
215 } 233 }
216 return(cp); 234 return (cp);
217} 235}
218 236
237void
219__p_query(msg) 238__p_query(msg)
220 char *msg; 239 const u_char *msg;
221{ 240{
222 __fp_query(msg, stdout); 241 __fp_query(msg, stdout);
223} 242}
@@ -231,15 +250,14 @@ __fp_resstat(statp, file)
231 struct __res_state *statp; 250 struct __res_state *statp;
232 FILE *file; 251 FILE *file;
233{ 252{
234 int bit; 253 register u_long mask;
235 254
236 fprintf(file, ";; res options:"); 255 fprintf(file, ";; res options:");
237 if (!statp) 256 if (!statp)
238 statp = &_res; 257 statp = &_res;
239 for (bit = 0; bit < 32; bit++) { /* XXX 32 - bad assumption! */ 258 for (mask = 1; mask != 0; mask <<= 1)
240 if (statp->options & (1<<bit)) 259 if (statp->options & mask)
241 fprintf(file, " %s", p_option(1<<bit)); 260 fprintf(file, " %s", p_option(mask));
242 }
243 putc('\n', file); 261 putc('\n', file);
244} 262}
245 263
@@ -248,109 +266,151 @@ __fp_resstat(statp, file)
248 * This is intended to be primarily a debugging routine. 266 * This is intended to be primarily a debugging routine.
249 */ 267 */
250void 268void
251__fp_query(msg,file) 269__fp_nquery(msg, len, file)
252 char *msg; 270 const u_char *msg;
271 int len;
253 FILE *file; 272 FILE *file;
254{ 273{
255 register char *cp; 274 register const u_char *cp, *endMark;
256 register HEADER *hp; 275 register const HEADER *hp;
257 register int n; 276 register int n;
258 277
278 if ((_res.options & RES_INIT) == 0 && res_init() == -1)
279 return;
280
281#define TruncTest(x) if (x > endMark) goto trunc
282#define ErrorTest(x) if (x == NULL) goto error
283
259 /* 284 /*
260 * Print header fields. 285 * Print header fields.
261 */ 286 */
262 hp = (HEADER *)msg; 287 hp = (HEADER *)msg;
263 cp = msg + sizeof(HEADER); 288 cp = msg + HFIXEDSZ;
289 endMark = msg + len;
264 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_HEADX) || hp->rcode) { 290 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_HEADX) || hp->rcode) {
265 fprintf(file,";; ->>HEADER<<- opcode: %s, status: %s, id: %d", 291 fprintf(file, ";; ->>HEADER<<- opcode: %s, status: %s, id: %u",
266 _res_opcodes[hp->opcode], 292 _res_opcodes[hp->opcode],
267 _res_resultcodes[hp->rcode], 293 _res_resultcodes[hp->rcode],
268 ntohs(hp->id)); 294 ntohs(hp->id));
269 putc('\n', file); 295 putc('\n', file);
270 } 296 }
271 putc(';', file); 297 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_HEADX))
298 putc(';', file);
272 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_HEAD2)) { 299 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_HEAD2)) {
273 fprintf(file,"; flags:"); 300 fprintf(file, "; flags:");
274 if (hp->qr) 301 if (hp->qr)
275 fprintf(file," qr"); 302 fprintf(file, " qr");
276 if (hp->aa) 303 if (hp->aa)
277 fprintf(file," aa"); 304 fprintf(file, " aa");
278 if (hp->tc) 305 if (hp->tc)
279 fprintf(file," tc"); 306 fprintf(file, " tc");
280 if (hp->rd) 307 if (hp->rd)
281 fprintf(file," rd"); 308 fprintf(file, " rd");
282 if (hp->ra) 309 if (hp->ra)
283 fprintf(file," ra"); 310 fprintf(file, " ra");
284 if (hp->pr) 311 if (hp->unused)
285 fprintf(file," pr"); 312 fprintf(file, " UNUSED-BIT-ON");
313 if (hp->ad)
314 fprintf(file, " ad");
315 if (hp->cd)
316 fprintf(file, " cd");
286 } 317 }
287 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_HEAD1)) { 318 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_HEAD1)) {
288 fprintf(file,"; Ques: %d", ntohs(hp->qdcount)); 319 fprintf(file, "; Ques: %u", ntohs(hp->qdcount));
289 fprintf(file,", Ans: %d", ntohs(hp->ancount)); 320 fprintf(file, ", Ans: %u", ntohs(hp->ancount));
290 fprintf(file,", Auth: %d", ntohs(hp->nscount)); 321 fprintf(file, ", Auth: %u", ntohs(hp->nscount));
291 fprintf(file,", Addit: %d\n", ntohs(hp->arcount)); 322 fprintf(file, ", Addit: %u", ntohs(hp->arcount));
292 } 323 }
293#if 0 324 if ((!_res.pfcode) || (_res.pfcode &
294 if (_res.pfcode & (RES_PRF_HEADX | RES_PRF_HEAD2 | RES_PRF_HEAD1)) { 325 (RES_PRF_HEADX | RES_PRF_HEAD2 | RES_PRF_HEAD1))) {
295 putc('\n',file); 326 putc('\n',file);
296 } 327 }
297#endif
298 /* 328 /*
299 * Print question records. 329 * Print question records.
300 */ 330 */
301 if (n = ntohs(hp->qdcount)) { 331 if ((n = ntohs(hp->qdcount))) {
302 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_QUES)) 332 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_QUES))
303 fprintf(file,";; QUESTIONS:\n"); 333 fprintf(file, ";; QUESTIONS:\n");
304 while (--n >= 0) { 334 while (--n >= 0) {
305 fprintf(file,";;\t"); 335 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_QUES))
306 cp = p_cdname(cp, msg, file); 336 fprintf(file, ";;\t");
307 if (cp == NULL) 337 TruncTest(cp);
308 return; 338 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_QUES))
339 cp = p_cdnname(cp, msg, len, file);
340 else {
341 int n;
342 char name[MAXDNAME];
343
344 if ((n = dn_expand(msg, msg+len, cp, name,
345 sizeof name)) < 0)
346 cp = NULL;
347 else
348 cp += n;
349 }
350 ErrorTest(cp);
351 TruncTest(cp);
309 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_QUES)) 352 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_QUES))
310 fprintf(file, ", type = %s", 353 fprintf(file, ", type = %s",
311 __p_type(_getshort(cp))); 354 __p_type(_getshort((u_char*)cp)));
312 cp += sizeof(u_int16_t); 355 cp += INT16SZ;
356 TruncTest(cp);
313 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_QUES)) 357 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_QUES))
314 fprintf(file, ", class = %s\n\n", 358 fprintf(file, ", class = %s\n",
315 __p_class(_getshort(cp))); 359 __p_class(_getshort((u_char*)cp)));
316 cp += sizeof(u_int16_t); 360 cp += INT16SZ;
361 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_QUES))
362 putc('\n', file);
317 } 363 }
318 } 364 }
319 /* 365 /*
320 * Print authoritative answer records 366 * Print authoritative answer records
321 */ 367 */
322 cp = do_rrset(msg, cp, hp->ancount, RES_PRF_ANS, file, 368 TruncTest(cp);
369 cp = do_rrset(msg, len, cp, hp->ancount, RES_PRF_ANS, file,
323 ";; ANSWERS:\n"); 370 ";; ANSWERS:\n");
324 if (cp == NULL) 371 ErrorTest(cp);
325 return;
326 372
327 /* 373 /*
328 * print name server records 374 * print name server records
329 */ 375 */
330 cp = do_rrset(msg, cp, hp->nscount, RES_PRF_AUTH, file, 376 TruncTest(cp);
377 cp = do_rrset(msg, len, cp, hp->nscount, RES_PRF_AUTH, file,
331 ";; AUTHORITY RECORDS:\n"); 378 ";; AUTHORITY RECORDS:\n");
332 if (!cp) 379 ErrorTest(cp);
333 return;
334 380
381 TruncTest(cp);
335 /* 382 /*
336 * print additional records 383 * print additional records
337 */ 384 */
338 cp = do_rrset(msg, cp, hp->arcount, RES_PRF_ADD, file, 385 cp = do_rrset(msg, len, cp, hp->arcount, RES_PRF_ADD, file,
339 ";; ADDITIONAL RECORDS:\n"); 386 ";; ADDITIONAL RECORDS:\n");
340 if (!cp) 387 ErrorTest(cp);
341 return; 388 return;
389 trunc:
390 fprintf(file, "\n;; ...truncated\n");
391 return;
392 error:
393 fprintf(file, "\n;; ...malformed\n");
342} 394}
343 395
344char * 396void
345p_cdname(cp, msg, file) 397__fp_query(msg, file)
346 char *cp, *msg; 398 const u_char *msg;
399 FILE *file;
400{
401 fp_nquery(msg, PACKETSZ, file);
402}
403
404const u_char *
405__p_cdnname(cp, msg, len, file)
406 const u_char *cp, *msg;
407 int len;
347 FILE *file; 408 FILE *file;
348{ 409{
349 char name[MAXDNAME]; 410 char name[MAXDNAME];
350 int n; 411 int n;
351 412
352 if ((n = dn_expand((u_char *)msg, (u_char *)cp + MAXCDNAME, 413 if ((n = dn_expand(msg, msg + len, cp, name, sizeof name)) < 0)
353 (u_char *)cp, (u_char *)name, sizeof(name))) < 0)
354 return (NULL); 414 return (NULL);
355 if (name[0] == '\0') 415 if (name[0] == '\0')
356 putc('.', file); 416 putc('.', file);
@@ -359,54 +419,94 @@ p_cdname(cp, msg, file)
359 return (cp + n); 419 return (cp + n);
360} 420}
361 421
362char * 422const u_char *
363p_fqname(cp, msg, file) 423__p_cdname(cp, msg, file)
364 char *cp, *msg; 424 const u_char *cp, *msg;
365 FILE *file; 425 FILE *file;
366{ 426{
367 char name[MAXDNAME]; 427 return (p_cdnname(cp, msg, PACKETSZ, file));
368 int n, len; 428}
429
369 430
370 if ((n = dn_expand((u_char *)msg, (u_char *)cp + MAXCDNAME, 431/* Return a fully-qualified domain name from a compressed name (with
371 (u_char *)cp, (u_char *)name, sizeof(name))) < 0) 432 length supplied). */
433
434const u_char *
435__p_fqnname(cp, msg, msglen, name, namelen)
436 const u_char *cp, *msg;
437 int msglen;
438 char *name;
439 int namelen;
440{
441 int n, newlen;
442
443 if ((n = dn_expand(msg, cp + msglen, cp, name, namelen)) < 0)
372 return (NULL); 444 return (NULL);
373 if (name[0] == '\0') { 445 newlen = strlen(name);
374 putc('.', file); 446 if (newlen == 0 || name[newlen - 1] != '.') {
375 } else { 447 if (newlen+1 >= namelen) /* Lack space for final dot */
376 fputs(name, file); 448 return (NULL);
377 if (name[strlen(name) - 1] != '.') 449 else
378 putc('.', file); 450 strcpy(name + newlen, ".");
379 } 451 }
380 return (cp + n); 452 return (cp + n);
381} 453}
382 454
455/* XXX: the rest of these functions need to become length-limited, too. (vix)
456 */
457
458const u_char *
459__p_fqname(cp, msg, file)
460 const u_char *cp, *msg;
461 FILE *file;
462{
463 char name[MAXDNAME];
464 const u_char *n;
465
466 n = __p_fqnname(cp, msg, MAXCDNAME, name, sizeof name);
467 if (n == NULL)
468 return (NULL);
469 fputs(name, file);
470 return (n);
471}
472
383/* 473/*
384 * Print resource record fields in human readable form. 474 * Print resource record fields in human readable form.
385 */ 475 */
386char * 476const u_char *
387p_rr(cp, msg, file) 477__p_rr(cp, msg, file)
388 char *cp, *msg; 478 const u_char *cp, *msg;
389 FILE *file; 479 FILE *file;
390{ 480{
391 int type, class, dlen, n, c; 481 int type, class, dlen, n, c;
392 struct in_addr inaddr; 482 struct in_addr inaddr;
393 char *cp1, *cp2; 483 const u_char *cp1, *cp2;
394 u_int32_t tmpttl, t; 484 u_int32_t tmpttl, t;
395 int lcnt; 485 int lcnt;
486 u_int16_t keyflags;
487 char rrname[MAXDNAME]; /* The fqdn of this RR */
488 char base64_key[MAX_KEY_BASE64];
396 489
397 if ((cp = p_fqname(cp, msg, file)) == NULL) 490 if ((_res.options & RES_INIT) == 0 && res_init() == -1) {
491 h_errno = NETDB_INTERNAL;
492 return (NULL);
493 }
494 cp = __p_fqnname(cp, msg, MAXCDNAME, rrname, sizeof rrname);
495 if (!cp)
398 return (NULL); /* compression error */ 496 return (NULL); /* compression error */
399 type = _getshort(cp); 497 fputs(rrname, file);
400 cp += sizeof(u_int16_t); 498
401 class = _getshort(cp); 499 type = _getshort((u_char*)cp);
402 cp += sizeof(u_int16_t); 500 cp += INT16SZ;
403 tmpttl = _getlong(cp); 501 class = _getshort((u_char*)cp);
404 cp += sizeof(u_int32_t); 502 cp += INT16SZ;
405 dlen = _getshort(cp); 503 tmpttl = _getlong((u_char*)cp);
406 cp += sizeof(u_int16_t); 504 cp += INT32SZ;
505 dlen = _getshort((u_char*)cp);
506 cp += INT16SZ;
407 cp1 = cp; 507 cp1 = cp;
408 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_TTLID)) 508 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_TTLID))
409 fprintf(file, "\t%lu", tmpttl); 509 fprintf(file, "\t%lu", (u_long)tmpttl);
410 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_CLASS)) 510 if ((!_res.pfcode) || (_res.pfcode & RES_PRF_CLASS))
411 fprintf(file, "\t%s", __p_class(class)); 511 fprintf(file, "\t%s", __p_class(class));
412 fprintf(file, "\t%s", __p_type(type)); 512 fprintf(file, "\t%s", __p_type(type));
@@ -418,22 +518,22 @@ p_rr(cp, msg, file)
418 switch (class) { 518 switch (class) {
419 case C_IN: 519 case C_IN:
420 case C_HS: 520 case C_HS:
421 bcopy(cp, (char *)&inaddr, sizeof(inaddr)); 521 bcopy(cp, (char *)&inaddr, INADDRSZ);
422 if (dlen == 4) { 522 if (dlen == 4) {
423 fprintf(file,"\t%s", inet_ntoa(inaddr)); 523 fprintf(file, "\t%s", inet_ntoa(inaddr));
424 cp += dlen; 524 cp += dlen;
425 } else if (dlen == 7) { 525 } else if (dlen == 7) {
426 char *address; 526 char *address;
427 u_char protocol; 527 u_char protocol;
428 u_short port; 528 in_port_t port;
429 529
430 address = inet_ntoa(inaddr); 530 address = inet_ntoa(inaddr);
431 cp += sizeof(inaddr); 531 cp += INADDRSZ;
432 protocol = *(u_char*)cp; 532 protocol = *(u_char*)cp;
433 cp += sizeof(u_char); 533 cp += sizeof (u_char);
434 port = _getshort(cp); 534 port = _getshort((u_char*)cp);
435 cp += sizeof(u_int16_t); 535 cp += INT16SZ;
436 fprintf(file, "\t%s\t; proto %d, port %d", 536 fprintf(file, "\t%s\t; proto %u, port %u",
437 address, protocol, port); 537 address, protocol, port);
438 } 538 }
439 break; 539 break;
@@ -448,98 +548,205 @@ p_rr(cp, msg, file)
448 case T_NS: 548 case T_NS:
449 case T_PTR: 549 case T_PTR:
450 putc('\t', file); 550 putc('\t', file);
451 cp = p_fqname(cp, msg, file); 551 if ((cp = p_fqname(cp, msg, file)) == NULL)
552 return (NULL);
452 break; 553 break;
453 554
454 case T_HINFO: 555 case T_HINFO:
455 if (n = *cp++) { 556 case T_ISDN:
456 fprintf(file,"\t%.*s", n, cp); 557 cp2 = cp + dlen;
457 cp += n; 558 (void) fputs("\t\"", file);
559 if ((n = (unsigned char) *cp++) != 0) {
560 for (c = n; c > 0 && cp < cp2; c--) {
561 if (strchr("\n\"\\", *cp))
562 (void) putc('\\', file);
563 (void) putc(*cp++, file);
564 }
458 } 565 }
459 if (n = *cp++) { 566 putc('"', file);
460 fprintf(file,"\t%.*s", n, cp); 567 if (cp < cp2 && (n = (unsigned char) *cp++) != 0) {
461 cp += n; 568 (void) fputs ("\t\"", file);
569 for (c = n; c > 0 && cp < cp2; c--) {
570 if (strchr("\n\"\\", *cp))
571 (void) putc('\\', file);
572 (void) putc(*cp++, file);
573 }
574 putc('"', file);
575 } else if (type == T_HINFO) {
576 (void) fputs("\"?\"", file);
577 fprintf(file, "\n;; *** Warning *** OS-type missing");
462 } 578 }
463 break; 579 break;
464 580
465 case T_SOA: 581 case T_SOA:
466 putc('\t', file); 582 putc('\t', file);
467 cp = p_fqname(cp, msg, file); /* origin */ 583 if ((cp = p_fqname(cp, msg, file)) == NULL)
584 return (NULL);
468 putc(' ', file); 585 putc(' ', file);
469 cp = p_fqname(cp, msg, file); /* mail addr */ 586 if ((cp = p_fqname(cp, msg, file)) == NULL)
587 return (NULL);
470 fputs(" (\n", file); 588 fputs(" (\n", file);
471 t = _getlong(cp); cp += sizeof(u_int32_t); 589 t = _getlong((u_char*)cp); cp += INT32SZ;
472 fprintf(file,"\t\t\t%lu\t; serial\n", t); 590 fprintf(file, "\t\t\t%lu\t; serial\n", (u_long)t);
473 t = _getlong(cp); cp += sizeof(u_int32_t); 591 t = _getlong((u_char*)cp); cp += INT32SZ;
474 fprintf(file,"\t\t\t%lu\t; refresh (%s)\n", t, __p_time(t)); 592 fprintf(file, "\t\t\t%lu\t; refresh (%s)\n",
475 t = _getlong(cp); cp += sizeof(u_int32_t); 593 (u_long)t, __p_time(t));
476 fprintf(file,"\t\t\t%lu\t; retry (%s)\n", t, __p_time(t)); 594 t = _getlong((u_char*)cp); cp += INT32SZ;
477 t = _getlong(cp); cp += sizeof(u_int32_t); 595 fprintf(file, "\t\t\t%lu\t; retry (%s)\n",
478 fprintf(file,"\t\t\t%lu\t; expire (%s)\n", t, __p_time(t)); 596 (u_long)t, __p_time(t));
479 t = _getlong(cp); cp += sizeof(u_int32_t); 597 t = _getlong((u_char*)cp); cp += INT32SZ;
480 fprintf(file,"\t\t\t%lu )\t; minimum (%s)", t, __p_time(t)); 598 fprintf(file, "\t\t\t%lu\t; expire (%s)\n",
599 (u_long)t, __p_time(t));
600 t = _getlong((u_char*)cp); cp += INT32SZ;
601 fprintf(file, "\t\t\t%lu )\t; minimum (%s)",
602 (u_long)t, __p_time(t));
481 break; 603 break;
482 604
483 case T_MX: 605 case T_MX:
484 case T_AFSDB: 606 case T_AFSDB:
485 fprintf(file,"\t%d ", _getshort(cp)); 607 case T_RT:
486 cp += sizeof(u_int16_t); 608 fprintf(file, "\t%u ", _getshort((u_char*)cp));
487 cp = p_fqname(cp, msg, file); 609 cp += INT16SZ;
610 if ((cp = p_fqname(cp, msg, file)) == NULL)
611 return (NULL);
488 break; 612 break;
489 613
490 case T_TXT: 614 case T_PX:
615 fprintf(file, "\t%u ", _getshort((u_char*)cp));
616 cp += INT16SZ;
617 if ((cp = p_fqname(cp, msg, file)) == NULL)
618 return (NULL);
619 putc(' ', file);
620 if ((cp = p_fqname(cp, msg, file)) == NULL)
621 return (NULL);
622 break;
623
624 case T_X25:
625 cp2 = cp + dlen;
491 (void) fputs("\t\"", file); 626 (void) fputs("\t\"", file);
627 if ((n = (unsigned char) *cp++) != 0) {
628 for (c = n; c > 0 && cp < cp2; c--) {
629 if (strchr("\n\"\\", *cp))
630 (void) putc('\\', file);
631 (void) putc(*cp++, file);
632 }
633 }
634 putc('"', file);
635 break;
636
637 case T_TXT:
638 (void) putc('\t', file);
492 cp2 = cp1 + dlen; 639 cp2 = cp1 + dlen;
493 while (cp < cp2) { 640 while (cp < cp2) {
494 if (n = (unsigned char) *cp++) { 641 putc('"', file);
495 for (c = n; c > 0 && cp < cp2; c--) 642 if ((n = (unsigned char) *cp++)) {
496 if (*cp == '\n') { 643 for (c = n; c > 0 && cp < cp2; c--) {
497 (void) putc('\\', file); 644 if (strchr("\n\"\\", *cp))
498 (void) putc(*cp++, file); 645 (void) putc('\\', file);
499 } else 646 (void) putc(*cp++, file);
500 (void) putc(*cp++, file); 647 }
501 } 648 }
649 putc('"', file);
650 if (cp < cp2)
651 putc(' ', file);
502 } 652 }
503 putc('"', file); 653 break;
504 break; 654
655 case T_NSAP:
656 (void) fprintf(file, "\t%s", inet_nsap_ntoa(dlen, cp, NULL));
657 cp += dlen;
658 break;
659
660 case T_AAAA: {
661 char t[sizeof "ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255"];
662
663 fprintf(file, "\t%s", inet_ntop(AF_INET6, cp, t, sizeof t));
664 cp += dlen;
665 break;
666 }
667
668 case T_LOC: {
669 char t[255];
670
671 fprintf(file, "\t%s", loc_ntoal(cp, t, sizeof t));
672 cp += dlen;
673 break;
674 }
675
676 case T_NAPTR: {
677 u_int order, preference;
678
679 order = _getshort(cp); cp += INT16SZ;
680 preference = _getshort(cp); cp += INT16SZ;
681 fprintf(file, "\t%u %u ",order, preference);
682 /* Flags */
683 n = *cp++;
684 fprintf(file,"\"%.*s\" ", (int)n, cp);
685 cp += n;
686 /* Service */
687 n = *cp++;
688 fprintf(file,"\"%.*s\" ", (int)n, cp);
689 cp += n;
690 /* Regexp */
691 n = *cp++;
692 fprintf(file,"\"%.*s\" ", (int)n, cp);
693 cp += n;
694 if ((cp = p_fqname(cp, msg, file)) == NULL)
695 return (NULL);
696 break;
697 }
698
699 case T_SRV: {
700 u_int priority, weight, port;
701
702 priority = _getshort(cp); cp += INT16SZ;
703 weight = _getshort(cp); cp += INT16SZ;
704 port = _getshort(cp); cp += INT16SZ;
705 fprintf(file, "\t%u %u %u ", priority, weight, port);
706 if ((cp = p_fqname(cp, msg, file)) == NULL)
707 return (NULL);
708 break;
709 }
505 710
506 case T_MINFO: 711 case T_MINFO:
507 case T_RP: 712 case T_RP:
508 putc('\t', file); 713 putc('\t', file);
509 cp = p_fqname(cp, msg, file); 714 if ((cp = p_fqname(cp, msg, file)) == NULL)
715 return (NULL);
510 putc(' ', file); 716 putc(' ', file);
511 cp = p_fqname(cp, msg, file); 717 if ((cp = p_fqname(cp, msg, file)) == NULL)
718 return (NULL);
512 break; 719 break;
513 720
514 case T_UINFO: 721 case T_UINFO:
515 putc('\t', file); 722 putc('\t', file);
516 fputs(cp, file); 723 fputs((char *)cp, file);
517 cp += dlen; 724 cp += dlen;
518 break; 725 break;
519 726
520 case T_UID: 727 case T_UID:
521 case T_GID: 728 case T_GID:
522 if (dlen == 4) { 729 if (dlen == 4) {
523 fprintf(file,"\t%u", _getlong(cp)); 730 fprintf(file, "\t%u", _getlong((u_char*)cp));
524 cp += sizeof(int32_t); 731 cp += INT32SZ;
525 } 732 }
526 break; 733 break;
527 734
528 case T_WKS: 735 case T_WKS:
529 if (dlen < sizeof(u_int32_t) + 1) 736 if (dlen < INT32SZ + 1)
530 break; 737 break;
531 bcopy(cp, (char *)&inaddr, sizeof(inaddr)); 738 bcopy(cp, (char *)&inaddr, INADDRSZ);
532 cp += sizeof(u_int32_t); 739 cp += INT32SZ;
533 fprintf(file, "\t%s %s ( ", 740 fprintf(file, "\t%s %s ( ",
534 inet_ntoa(inaddr), 741 inet_ntoa(inaddr),
535 deproto((int) *cp)); 742 deproto((int) *cp));
536 cp += sizeof(u_char); 743 cp += sizeof (u_char);
537 n = 0; 744 n = 0;
538 lcnt = 0; 745 lcnt = 0;
539 while (cp < cp1 + dlen) { 746 while (cp < cp1 + dlen) {
540 c = *cp++; 747 c = *cp++;
541 do { 748 do {
542 if (c & 0200) { 749 if (c & 0200) {
543 if (lcnt == 0) { 750 if (lcnt == 0) {
544 fputs("\n\t\t\t", file); 751 fputs("\n\t\t\t", file);
545 lcnt = 5; 752 lcnt = 5;
@@ -548,17 +755,83 @@ p_rr(cp, msg, file)
548 putc(' ', file); 755 putc(' ', file);
549 lcnt--; 756 lcnt--;
550 } 757 }
551 c <<= 1; 758 c <<= 1;
552 } while (++n & 07); 759 } while (++n & 07);
553 } 760 }
554 putc(')', file); 761 putc(')', file);
555 break; 762 break;
556 763
764 case T_KEY:
765 putc('\t', file);
766 keyflags = _getshort(cp);
767 cp += 2;
768 fprintf(file,"0x%04x", keyflags ); /* flags */
769 fprintf(file," %u", *cp++); /* protocol */
770 fprintf(file," %u (", *cp++); /* algorithm */
771
772 n = b64_ntop(cp, (cp1 + dlen) - cp,
773 base64_key, sizeof base64_key);
774 for (c = 0; c < n; ++c) {
775 if (0 == (c & 0x3F))
776 fprintf(file, "\n\t");
777 putc(base64_key[c], file); /* public key data */
778 }
779
780 fprintf(file, " )");
781 if (n < 0)
782 fprintf(file, "\t; BAD BASE64");
783 fflush(file);
784 cp = cp1 + dlen;
785 break;
786
787 case T_SIG:
788 type = _getshort((u_char*)cp);
789 cp += INT16SZ;
790 fprintf(file, " %s", p_type(type));
791 fprintf(file, "\t%u", *cp++); /* algorithm */
792 /* Check label value and print error if wrong. */
793 n = *cp++;
794 c = dn_count_labels (rrname);
795 if (n != c)
796 fprintf(file, "\t; LABELS WRONG (%d should be %d)\n\t",
797 n, c);
798 /* orig ttl */
799 n = _getlong((u_char*)cp);
800 if (n != tmpttl)
801 fprintf(file, " %u", n);
802 cp += INT32SZ;
803 /* sig expire */
804 fprintf(file, " (\n\t%s",
805 __p_secstodate(_getlong((u_char*)cp)));
806 cp += INT32SZ;
807 /* time signed */
808 fprintf(file, " %s", __p_secstodate(_getlong((u_char*)cp)));
809 cp += INT32SZ;
810 /* sig footprint */
811 fprintf(file," %u ", _getshort((u_char*)cp));
812 cp += INT16SZ;
813 /* signer's name */
814 cp = p_fqname(cp, msg, file);
815 n = b64_ntop(cp, (cp1 + dlen) - cp,
816 base64_key, sizeof base64_key);
817 for (c = 0; c < n; c++) {
818 if (0 == (c & 0x3F))
819 fprintf (file, "\n\t");
820 putc(base64_key[c], file); /* signature */
821 }
822 /* Clean up... */
823 fprintf(file, " )");
824 if (n < 0)
825 fprintf(file, "\t; BAD BASE64");
826 fflush(file);
827 cp = cp1+dlen;
828 break;
829
557#ifdef ALLOW_T_UNSPEC 830#ifdef ALLOW_T_UNSPEC
558 case T_UNSPEC: 831 case T_UNSPEC:
559 { 832 {
560 int NumBytes = 8; 833 int NumBytes = 8;
561 char *DataPtr; 834 u_char *DataPtr;
562 int i; 835 int i;
563 836
564 if (dlen < NumBytes) NumBytes = dlen; 837 if (dlen < NumBytes) NumBytes = dlen;
@@ -572,7 +845,7 @@ p_rr(cp, msg, file)
572#endif /* ALLOW_T_UNSPEC */ 845#endif /* ALLOW_T_UNSPEC */
573 846
574 default: 847 default:
575 fprintf(file,"\t?%d?", type); 848 fprintf(file, "\t?%d?", type);
576 cp += dlen; 849 cp += dlen;
577 } 850 }
578#if 0 851#if 0
@@ -581,136 +854,210 @@ p_rr(cp, msg, file)
581 putc('\n', file); 854 putc('\n', file);
582#endif 855#endif
583 if (cp - cp1 != dlen) { 856 if (cp - cp1 != dlen) {
584 fprintf(file,";; packet size error (found %d, dlen was %d)\n", 857 fprintf(file, ";; packet size error (found %ld, dlen was %d)\n",
585 cp - cp1, dlen); 858 (long)(cp - cp1), dlen);
586 cp = NULL; 859 cp = NULL;
587 } 860 }
588 return (cp); 861 return (cp);
589} 862}
590 863
591static char nbuf[40]; 864/*
865 * Names of RR classes and qclasses. Classes and qclasses are the same, except
866 * that C_ANY is a qclass but not a class. (You can ask for records of class
867 * C_ANY, but you can't have any records of that class in the database.)
868 */
869const struct res_sym __p_class_syms[] = {
870 {C_IN, "IN"},
871 {C_CHAOS, "CHAOS"},
872 {C_HS, "HS"},
873 {C_HS, "HESIOD"},
874 {C_ANY, "ANY"},
875 {C_IN, (char *)0}
876};
592 877
593/* 878/*
594 * Return a string for the type 879 * Names of RR types and qtypes. Types and qtypes are the same, except
880 * that T_ANY is a qtype but not a type. (You can ask for records of type
881 * T_ANY, but you can't have any records of that type in the database.)
595 */ 882 */
596char * 883const struct res_sym __p_type_syms[] = {
597__p_type(type) 884 {T_A, "A", "address"},
598 int type; 885 {T_NS, "NS", "name server"},
599{ 886 {T_MD, "MD", "mail destination (deprecated)"},
600 switch (type) { 887 {T_MF, "MF", "mail forwarder (deprecated)"},
601 case T_A: 888 {T_CNAME, "CNAME", "canonical name"},
602 return("A"); 889 {T_SOA, "SOA", "start of authority"},
603 case T_NS: /* authoritative server */ 890 {T_MB, "MB", "mailbox"},
604 return("NS"); 891 {T_MG, "MG", "mail group member"},
605 case T_CNAME: /* canonical name */ 892 {T_MR, "MR", "mail rename"},
606 return("CNAME"); 893 {T_NULL, "NULL", "null"},
607 case T_SOA: /* start of authority zone */ 894 {T_WKS, "WKS", "well-known service (deprecated)"},
608 return("SOA"); 895 {T_PTR, "PTR", "domain name pointer"},
609 case T_MB: /* mailbox domain name */ 896 {T_HINFO, "HINFO", "host information"},
610 return("MB"); 897 {T_MINFO, "MINFO", "mailbox information"},
611 case T_MG: /* mail group member */ 898 {T_MX, "MX", "mail exchanger"},
612 return("MG"); 899 {T_TXT, "TXT", "text"},
613 case T_MR: /* mail rename name */ 900 {T_RP, "RP", "responsible person"},
614 return("MR"); 901 {T_AFSDB, "AFSDB", "DCE or AFS server"},
615 case T_NULL: /* null resource record */ 902 {T_X25, "X25", "X25 address"},
616 return("NULL"); 903 {T_ISDN, "ISDN", "ISDN address"},
617 case T_WKS: /* well known service */ 904 {T_RT, "RT", "router"},
618 return("WKS"); 905 {T_NSAP, "NSAP", "nsap address"},
619 case T_PTR: /* domain name pointer */ 906 {T_NSAP_PTR, "NSAP_PTR", "domain name pointer"},
620 return("PTR"); 907 {T_SIG, "SIG", "signature"},
621 case T_HINFO: /* host information */ 908 {T_KEY, "KEY", "key"},
622 return("HINFO"); 909 {T_PX, "PX", "mapping information"},
623 case T_MINFO: /* mailbox information */ 910 {T_GPOS, "GPOS", "geographical position (withdrawn)"},
624 return("MINFO"); 911 {T_AAAA, "AAAA", "IPv6 address"},
625 case T_MX: /* mail routing info */ 912 {T_LOC, "LOC", "location"},
626 return("MX"); 913 {T_NXT, "NXT", "next valid name (unimplemented)"},
627 case T_TXT: /* text */ 914 {T_EID, "EID", "endpoint identifier (unimplemented)"},
628 return("TXT"); 915 {T_NIMLOC, "NIMLOC", "NIMROD locator (unimplemented)"},
629 case T_RP: /* responsible person */ 916 {T_SRV, "SRV", "server selection"},
630 return("RP"); 917 {T_ATMA, "ATMA", "ATM address (unimplemented)"},
631 case T_AFSDB: /* AFS cell database */ 918 {T_IXFR, "IXFR", "incremental zone transfer"},
632 return("AFSDB"); 919 {T_AXFR, "AXFR", "zone transfer"},
633 case T_AXFR: /* zone transfer */ 920 {T_MAILB, "MAILB", "mailbox-related data (deprecated)"},
634 return("AXFR"); 921 {T_MAILA, "MAILA", "mail agent (deprecated)"},
635 case T_MAILB: /* mail box */ 922 {T_UINFO, "UINFO", "user information (nonstandard)"},
636 return("MAILB"); 923 {T_UID, "UID", "user ID (nonstandard)"},
637 case T_MAILA: /* mail address */ 924 {T_GID, "GID", "group ID (nonstandard)"},
638 return("MAILA"); 925 {T_NAPTR, "NAPTR", "URN Naming Authority"},
639 case T_ANY: /* matches any type */
640 return("ANY");
641 case T_UINFO:
642 return("UINFO");
643 case T_UID:
644 return("UID");
645 case T_GID:
646 return("GID");
647#ifdef ALLOW_T_UNSPEC 926#ifdef ALLOW_T_UNSPEC
648 case T_UNSPEC: 927 {T_UNSPEC, "UNSPEC", "unspecified data (nonstandard)"},
649 return("UNSPEC");
650#endif /* ALLOW_T_UNSPEC */ 928#endif /* ALLOW_T_UNSPEC */
929 {T_ANY, "ANY", "\"any\""},
930 {0, NULL, NULL}
931};
651 932
652 default: 933int
653 (void)sprintf(nbuf, "%d", type); 934__sym_ston(syms, name, success)
654 return(nbuf); 935 const struct res_sym *syms;
936 char *name;
937 int *success;
938{
939 for (; syms->name != 0; syms++) {
940 if (strcasecmp (name, syms->name) == 0) {
941 if (success)
942 *success = 1;
943 return (syms->number);
944 }
655 } 945 }
946 if (success)
947 *success = 0;
948 return (syms->number); /* The default value. */
949}
950
951const char *
952__sym_ntos(syms, number, success)
953 const struct res_sym *syms;
954 int number;
955 int *success;
956{
957 static char unname[20];
958
959 for (; syms->name != 0; syms++) {
960 if (number == syms->number) {
961 if (success)
962 *success = 1;
963 return (syms->name);
964 }
965 }
966
967 snprintf(unname, sizeof unname, "%d", number);
968 if (success)
969 *success = 0;
970 return (unname);
971}
972
973
974const char *
975__sym_ntop(syms, number, success)
976 const struct res_sym *syms;
977 int number;
978 int *success;
979{
980 static char unname[20];
981
982 for (; syms->name != 0; syms++) {
983 if (number == syms->number) {
984 if (success)
985 *success = 1;
986 return (syms->humanname);
987 }
988 }
989 snprintf(unname, sizeof unname, "%d", number);
990 if (success)
991 *success = 0;
992 return (unname);
993}
994
995/*
996 * Return a string for the type
997 */
998const char *
999__p_type(type)
1000 int type;
1001{
1002 return (__sym_ntos (__p_type_syms, type, (int *)0));
656} 1003}
657 1004
658/* 1005/*
659 * Return a mnemonic for class 1006 * Return a mnemonic for class
660 */ 1007 */
661char * 1008const char *
662__p_class(class) 1009__p_class(class)
663 int class; 1010 int class;
664{ 1011{
665 1012 return (__sym_ntos (__p_class_syms, class, (int *)0));
666 switch (class) {
667 case C_IN: /* internet class */
668 return("IN");
669 case C_HS: /* hesiod class */
670 return("HS");
671 case C_ANY: /* matches any class */
672 return("ANY");
673 default:
674 (void)sprintf(nbuf, "%d", class);
675 return(nbuf);
676 }
677} 1013}
678 1014
679/* 1015/*
680 * Return a mnemonic for an option 1016 * Return a mnemonic for an option
681 */ 1017 */
682static char * 1018const char *
683p_option(option) 1019__p_option(option)
684 u_int32_t option; 1020 u_long option;
685{ 1021{
1022 static char nbuf[40];
1023
686 switch (option) { 1024 switch (option) {
687 case RES_INIT: return "init"; 1025 case RES_INIT: return "init";
688 case RES_DEBUG: return "debug"; 1026 case RES_DEBUG: return "debug";
689 case RES_AAONLY: return "aaonly"; 1027 case RES_AAONLY: return "aaonly(unimpl)";
690 case RES_USEVC: return "usevc"; 1028 case RES_USEVC: return "usevc";
691 case RES_PRIMARY: return "primry"; 1029 case RES_PRIMARY: return "primry(unimpl)";
692 case RES_IGNTC: return "igntc"; 1030 case RES_IGNTC: return "igntc";
693 case RES_RECURSE: return "recurs"; 1031 case RES_RECURSE: return "recurs";
694 case RES_DEFNAMES: return "defnam"; 1032 case RES_DEFNAMES: return "defnam";
695 case RES_STAYOPEN: return "styopn"; 1033 case RES_STAYOPEN: return "styopn";
696 case RES_DNSRCH: return "dnsrch"; 1034 case RES_DNSRCH: return "dnsrch";
697 default: sprintf(nbuf, "?0x%x?", option); return nbuf; 1035 case RES_INSECURE1: return "insecure1";
1036 case RES_INSECURE2: return "insecure2";
1037 case RES_USE_INET6: return "inet6";
1038 case RES_USE_EDNS0: return "edns0";
1039 default:
1040 snprintf(nbuf, sizeof nbuf, "?0x%lx?", (u_long)option);
1041 return (nbuf);
698 } 1042 }
699} 1043}
700 1044
701/* 1045/*
702 * Return a mnemonic for a time to live 1046 * Return a mnemonic for a time to live
703 */ 1047 */
704char * 1048const char *
705__p_time(value) 1049p_time(value)
706 u_int32_t value; 1050 u_int32_t value;
707{ 1051{
1052 static char nbuf[40];
1053 char *ebuf;
708 int secs, mins, hours, days; 1054 int secs, mins, hours, days;
709 register char *p; 1055 register char *p;
1056 int tmp;
710 1057
711 if (value == 0) { 1058 if (value == 0) {
712 strcpy(nbuf, "0 secs"); 1059 strlcpy(nbuf, "0 secs", sizeof nbuf);
713 return(nbuf); 1060 return (nbuf);
714 } 1061 }
715 1062
716 secs = value % 60; 1063 secs = value % 60;
@@ -724,26 +1071,490 @@ __p_time(value)
724 1071
725#define PLURALIZE(x) x, (x == 1) ? "" : "s" 1072#define PLURALIZE(x) x, (x == 1) ? "" : "s"
726 p = nbuf; 1073 p = nbuf;
1074 ebuf = nbuf + sizeof(nbuf);
727 if (days) { 1075 if (days) {
728 (void)sprintf(p, "%d day%s", PLURALIZE(days)); 1076 if ((tmp = snprintf(p, ebuf - p, "%d day%s",
729 while (*++p); 1077 PLURALIZE(days))) >= ebuf - nbuf || tmp < 0)
1078 goto full;
1079 p += tmp;
730 } 1080 }
731 if (hours) { 1081 if (hours) {
732 if (days) 1082 if (days)
733 *p++ = ' '; 1083 *p++ = ' ';
734 (void)sprintf(p, "%d hour%s", PLURALIZE(hours)); 1084 if (p >= ebuf)
735 while (*++p); 1085 goto full;
1086 if ((tmp = snprintf(p, ebuf - p, "%d hour%s",
1087 PLURALIZE(hours))) >= ebuf - nbuf || tmp < 0)
1088 goto full;
1089 p += tmp;
736 } 1090 }
737 if (mins) { 1091 if (mins) {
738 if (days || hours) 1092 if (days || hours)
739 *p++ = ' '; 1093 *p++ = ' ';
740 (void)sprintf(p, "%d min%s", PLURALIZE(mins)); 1094 if (p >= ebuf)
741 while (*++p); 1095 goto full;
1096 if ((tmp = snprintf(p, ebuf - p, "%d min%s",
1097 PLURALIZE(mins))) >= ebuf - nbuf || tmp < 0)
1098 goto full;
1099 p += tmp;
742 } 1100 }
743 if (secs || ! (days || hours || mins)) { 1101 if (secs || ! (days || hours || mins)) {
744 if (days || hours || mins) 1102 if (days || hours || mins)
745 *p++ = ' '; 1103 *p++ = ' ';
746 (void)sprintf(p, "%d sec%s", PLURALIZE(secs)); 1104 if (p >= ebuf)
1105 goto full;
1106 if ((tmp = snprintf(p, ebuf - p, "%d sec%s",
1107 PLURALIZE(secs))) >= ebuf - nbuf || tmp < 0)
1108 goto full;
1109 }
1110 return (nbuf);
1111full:
1112 p = nbuf + sizeof(nbuf) - 4;
1113 *p++ = '.';
1114 *p++ = '.';
1115 *p++ = '.';
1116 *p++ = '\0';
1117 return (nbuf);
1118}
1119
1120/*
1121 * routines to convert between on-the-wire RR format and zone file format.
1122 * Does not contain conversion to/from decimal degrees; divide or multiply
1123 * by 60*60*1000 for that.
1124 */
1125
1126static unsigned int poweroften[10] = {1, 10, 100, 1000, 10000, 100000,
1127 1000000,10000000,100000000,1000000000};
1128
1129/* takes an XeY precision/size value, returns a string representation. */
1130static const char *
1131precsize_ntoa(prec)
1132 u_int8_t prec;
1133{
1134 static char retbuf[sizeof "90000000.00"];
1135 unsigned long val;
1136 int mantissa, exponent;
1137
1138 mantissa = (int)((prec >> 4) & 0x0f) % 10;
1139 exponent = (int)((prec >> 0) & 0x0f) % 10;
1140
1141 val = mantissa * poweroften[exponent];
1142
1143 (void) snprintf(retbuf, sizeof retbuf, "%ld.%.2ld", val/100, val%100);
1144 return (retbuf);
1145}
1146
1147/* converts ascii size/precision X * 10**Y(cm) to 0xXY. moves pointer. */
1148static u_int8_t
1149precsize_aton(strptr)
1150 char **strptr;
1151{
1152 unsigned int mval = 0, cmval = 0;
1153 u_int8_t retval = 0;
1154 register char *cp;
1155 register int exponent;
1156 register int mantissa;
1157
1158 cp = *strptr;
1159
1160 while (isdigit(*cp))
1161 mval = mval * 10 + (*cp++ - '0');
1162
1163 if (*cp == '.') { /* centimeters */
1164 cp++;
1165 if (isdigit(*cp)) {
1166 cmval = (*cp++ - '0') * 10;
1167 if (isdigit(*cp)) {
1168 cmval += (*cp++ - '0');
1169 }
1170 }
1171 }
1172 cmval = (mval * 100) + cmval;
1173
1174 for (exponent = 0; exponent < 9; exponent++)
1175 if (cmval < poweroften[exponent+1])
1176 break;
1177
1178 mantissa = cmval / poweroften[exponent];
1179 if (mantissa > 9)
1180 mantissa = 9;
1181
1182 retval = (mantissa << 4) | exponent;
1183
1184 *strptr = cp;
1185
1186 return (retval);
1187}
1188
1189/* converts ascii lat/lon to unsigned encoded 32-bit number. moves pointer. */
1190static u_int32_t
1191latlon2ul(latlonstrptr,which)
1192 char **latlonstrptr;
1193 int *which;
1194{
1195 register char *cp;
1196 u_int32_t retval;
1197 int deg = 0, min = 0, secs = 0, secsfrac = 0;
1198
1199 cp = *latlonstrptr;
1200
1201 while (isdigit(*cp))
1202 deg = deg * 10 + (*cp++ - '0');
1203
1204 while (isspace(*cp))
1205 cp++;
1206
1207 if (!(isdigit(*cp)))
1208 goto fndhemi;
1209
1210 while (isdigit(*cp))
1211 min = min * 10 + (*cp++ - '0');
1212
1213 while (isspace(*cp))
1214 cp++;
1215
1216 if (!(isdigit(*cp)))
1217 goto fndhemi;
1218
1219 while (isdigit(*cp))
1220 secs = secs * 10 + (*cp++ - '0');
1221
1222 if (*cp == '.') { /* decimal seconds */
1223 cp++;
1224 if (isdigit(*cp)) {
1225 secsfrac = (*cp++ - '0') * 100;
1226 if (isdigit(*cp)) {
1227 secsfrac += (*cp++ - '0') * 10;
1228 if (isdigit(*cp)) {
1229 secsfrac += (*cp++ - '0');
1230 }
1231 }
1232 }
1233 }
1234
1235 while (!isspace(*cp)) /* if any trailing garbage */
1236 cp++;
1237
1238 while (isspace(*cp))
1239 cp++;
1240
1241 fndhemi:
1242 switch (*cp) {
1243 case 'N': case 'n':
1244 case 'E': case 'e':
1245 retval = ((unsigned)1<<31)
1246 + (((((deg * 60) + min) * 60) + secs) * 1000)
1247 + secsfrac;
1248 break;
1249 case 'S': case 's':
1250 case 'W': case 'w':
1251 retval = ((unsigned)1<<31)
1252 - (((((deg * 60) + min) * 60) + secs) * 1000)
1253 - secsfrac;
1254 break;
1255 default:
1256 retval = 0; /* invalid value -- indicates error */
1257 break;
1258 }
1259
1260 switch (*cp) {
1261 case 'N': case 'n':
1262 case 'S': case 's':
1263 *which = 1; /* latitude */
1264 break;
1265 case 'E': case 'e':
1266 case 'W': case 'w':
1267 *which = 2; /* longitude */
1268 break;
1269 default:
1270 *which = 0; /* error */
1271 break;
1272 }
1273
1274 cp++; /* skip the hemisphere */
1275
1276 while (!isspace(*cp)) /* if any trailing garbage */
1277 cp++;
1278
1279 while (isspace(*cp)) /* move to next field */
1280 cp++;
1281
1282 *latlonstrptr = cp;
1283
1284 return (retval);
1285}
1286
1287/* converts a zone file representation in a string to an RDATA on-the-wire
1288 * representation. */
1289int
1290loc_aton(ascii, binary)
1291 const char *ascii;
1292 u_char *binary;
1293{
1294 const char *maxcp;
1295 u_char *bcp;
1296 char *cp;
1297
1298 u_int32_t latit = 0, longit = 0, alt = 0;
1299 u_int32_t lltemp1 = 0, lltemp2 = 0;
1300 int altmeters = 0, altfrac = 0, altsign = 1;
1301 u_int8_t hp = 0x16; /* default = 1e6 cm = 10000.00m = 10km */
1302 u_int8_t vp = 0x13; /* default = 1e3 cm = 10.00m */
1303 u_int8_t siz = 0x12; /* default = 1e2 cm = 1.00m */
1304 int which1 = 0, which2 = 0;
1305
1306 cp = (char *)ascii;
1307 maxcp = cp + strlen(ascii);
1308
1309 lltemp1 = latlon2ul(&cp, &which1);
1310
1311 lltemp2 = latlon2ul(&cp, &which2);
1312
1313 switch (which1 + which2) {
1314 case 3: /* 1 + 2, the only valid combination */
1315 if ((which1 == 1) && (which2 == 2)) { /* normal case */
1316 latit = lltemp1;
1317 longit = lltemp2;
1318 } else if ((which1 == 2) && (which2 == 1)) { /* reversed */
1319 longit = lltemp1;
1320 latit = lltemp2;
1321 } else { /* some kind of brokenness */
1322 return (0);
1323 }
1324 break;
1325 default: /* we didn't get one of each */
1326 return (0);
1327 }
1328
1329 /* altitude */
1330 if (*cp == '-') {
1331 altsign = -1;
1332 cp++;
1333 }
1334
1335 if (*cp == '+')
1336 cp++;
1337
1338 while (isdigit(*cp))
1339 altmeters = altmeters * 10 + (*cp++ - '0');
1340
1341 if (*cp == '.') { /* decimal meters */
1342 cp++;
1343 if (isdigit(*cp)) {
1344 altfrac = (*cp++ - '0') * 10;
1345 if (isdigit(*cp)) {
1346 altfrac += (*cp++ - '0');
1347 }
1348 }
1349 }
1350
1351 alt = (10000000 + (altsign * (altmeters * 100 + altfrac)));
1352
1353 while (!isspace(*cp) && (cp < maxcp)) /* if trailing garbage or m */
1354 cp++;
1355
1356 while (isspace(*cp) && (cp < maxcp))
1357 cp++;
1358
1359 if (cp >= maxcp)
1360 goto defaults;
1361
1362 siz = precsize_aton(&cp);
1363
1364 while (!isspace(*cp) && (cp < maxcp)) /* if trailing garbage or m */
1365 cp++;
1366
1367 while (isspace(*cp) && (cp < maxcp))
1368 cp++;
1369
1370 if (cp >= maxcp)
1371 goto defaults;
1372
1373 hp = precsize_aton(&cp);
1374
1375 while (!isspace(*cp) && (cp < maxcp)) /* if trailing garbage or m */
1376 cp++;
1377
1378 while (isspace(*cp) && (cp < maxcp))
1379 cp++;
1380
1381 if (cp >= maxcp)
1382 goto defaults;
1383
1384 vp = precsize_aton(&cp);
1385
1386 defaults:
1387
1388 bcp = binary;
1389 *bcp++ = (u_int8_t) 0; /* version byte */
1390 *bcp++ = siz;
1391 *bcp++ = hp;
1392 *bcp++ = vp;
1393 PUTLONG(latit,bcp);
1394 PUTLONG(longit,bcp);
1395 PUTLONG(alt,bcp);
1396
1397 return (16); /* size of RR in octets */
1398}
1399
1400const char *
1401loc_ntoa(binary, ascii)
1402 const u_char *binary;
1403 char *ascii;
1404{
1405 return loc_ntoal(binary, ascii, 255);
1406}
1407
1408/* takes an on-the-wire LOC RR and formats it in a human readable format. */
1409static const char *
1410loc_ntoal(binary, ascii, ascii_len)
1411 const u_char *binary;
1412 char *ascii;
1413 int ascii_len;
1414{
1415 static char *error = "?";
1416 register const u_char *cp = binary;
1417
1418 int latdeg, latmin, latsec, latsecfrac;
1419 int longdeg, longmin, longsec, longsecfrac;
1420 char northsouth, eastwest;
1421 int altmeters, altfrac, altsign;
1422
1423 const int referencealt = 100000 * 100;
1424
1425 int32_t latval, longval, altval;
1426 u_int32_t templ;
1427 u_int8_t sizeval, hpval, vpval, versionval;
1428
1429 char *sizestr, *hpstr, *vpstr;
1430
1431 versionval = *cp++;
1432
1433 if (versionval) {
1434 snprintf(ascii, ascii_len, "; error: unknown LOC RR version");
1435 return (ascii);
747 } 1436 }
748 return(nbuf); 1437
1438 sizeval = *cp++;
1439
1440 hpval = *cp++;
1441 vpval = *cp++;
1442
1443 GETLONG(templ, cp);
1444 latval = (templ - ((unsigned)1<<31));
1445
1446 GETLONG(templ, cp);
1447 longval = (templ - ((unsigned)1<<31));
1448
1449 GETLONG(templ, cp);
1450 if (templ < referencealt) { /* below WGS 84 spheroid */
1451 altval = referencealt - templ;
1452 altsign = -1;
1453 } else {
1454 altval = templ - referencealt;
1455 altsign = 1;
1456 }
1457
1458 if (latval < 0) {
1459 northsouth = 'S';
1460 latval = -latval;
1461 } else
1462 northsouth = 'N';
1463
1464 latsecfrac = latval % 1000;
1465 latval = latval / 1000;
1466 latsec = latval % 60;
1467 latval = latval / 60;
1468 latmin = latval % 60;
1469 latval = latval / 60;
1470 latdeg = latval;
1471
1472 if (longval < 0) {
1473 eastwest = 'W';
1474 longval = -longval;
1475 } else
1476 eastwest = 'E';
1477
1478 longsecfrac = longval % 1000;
1479 longval = longval / 1000;
1480 longsec = longval % 60;
1481 longval = longval / 60;
1482 longmin = longval % 60;
1483 longval = longval / 60;
1484 longdeg = longval;
1485
1486 altfrac = altval % 100;
1487 altmeters = (altval / 100) * altsign;
1488
1489 if ((sizestr = strdup(precsize_ntoa(sizeval))) == NULL)
1490 sizestr = error;
1491 if ((hpstr = strdup(precsize_ntoa(hpval))) == NULL)
1492 hpstr = error;
1493 if ((vpstr = strdup(precsize_ntoa(vpval))) == NULL)
1494 vpstr = error;
1495
1496 snprintf(ascii, ascii_len,
1497 "%d %.2d %.2d.%.3d %c %d %.2d %.2d.%.3d %c %d.%.2dm %sm %sm %sm",
1498 latdeg, latmin, latsec, latsecfrac, northsouth,
1499 longdeg, longmin, longsec, longsecfrac, eastwest,
1500 altmeters, altfrac, sizestr, hpstr, vpstr);
1501
1502 if (sizestr != error)
1503 free(sizestr);
1504 if (hpstr != error)
1505 free(hpstr);
1506 if (vpstr != error)
1507 free(vpstr);
1508
1509 return (ascii);
1510}
1511
1512
1513/* Return the number of DNS hierarchy levels in the name. */
1514int
1515__dn_count_labels(name)
1516 char *name;
1517{
1518 int i, len, count;
1519
1520 len = strlen(name);
1521
1522 for(i = 0, count = 0; i < len; i++) {
1523 if (name[i] == '.')
1524 count++;
1525 }
1526
1527 /* don't count initial wildcard */
1528 if (name[0] == '*')
1529 if (count)
1530 count--;
1531
1532 /* don't count the null label for root. */
1533 /* if terminating '.' not found, must adjust */
1534 /* count to include last label */
1535 if (len > 0 && name[len-1] != '.')
1536 count++;
1537 return (count);
1538}
1539
1540
1541/*
1542 * Make dates expressed in seconds-since-Jan-1-1970 easy to read.
1543 * SIG records are required to be printed like this, by the Secure DNS RFC.
1544 */
1545char *
1546__p_secstodate (secs)
1547 unsigned long secs;
1548{
1549 static char output[15]; /* YYYYMMDDHHMMSS and null */
1550 time_t clock = secs;
1551 struct tm *time;
1552
1553 time = gmtime(&clock);
1554 time->tm_year += 1900;
1555 time->tm_mon += 1;
1556 snprintf(output, sizeof output, "%04d%02d%02d%02d%02d%02d",
1557 time->tm_year, time->tm_mon, time->tm_mday,
1558 time->tm_hour, time->tm_min, time->tm_sec);
1559 return (output);
749} 1560}
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-04-29 11:52:47 +0000