Commit | Line | Data |
---|---|---|
e576be50 | 1 | /* |
2 | * types.c | |
3 | * - RR-type-specific code, and the machinery to call it | |
4 | */ | |
5 | /* | |
ae8cc977 | 6 | * This file is part of adns, which is |
7 | * Copyright (C) 1997-2000,2003,2006 Ian Jackson | |
8 | * Copyright (C) 1999-2000,2003,2006 Tony Finch | |
9 | * Copyright (C) 1991 Massachusetts Institute of Technology | |
10 | * (See the file INSTALL for full details.) | |
e576be50 | 11 | * |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2, or (at your option) | |
15 | * any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software Foundation, | |
24 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
25 | */ | |
98a3f706 | 26 | |
1b644113 | 27 | #include <stdlib.h> |
28 | ||
0f091044 | 29 | #include <sys/types.h> |
71a6ff46 | 30 | #include <sys/socket.h> |
31 | #include <netinet/in.h> | |
86e7b8d9 | 32 | #include <arpa/inet.h> |
33 | ||
98a3f706 | 34 | #include "internal.h" |
35 | ||
609133ee | 36 | #define R_NOMEM return adns_s_nomemory |
37 | #define CSP_ADDSTR(s) do { \ | |
38 | if (!adns__vbuf_appendstr(vb,(s))) R_NOMEM; \ | |
39 | } while (0) | |
1dfe95d8 | 40 | |
eb81d633 | 41 | /* |
42 | * order of sections: | |
43 | * | |
9ec44266 | 44 | * _string (pap) |
eb81d633 | 45 | * _textdata, _qstring (csp) |
46 | * _str (mf,cs) | |
9ec44266 | 47 | * _intstr (mf,csp,cs) |
eb81d633 | 48 | * _manyistr (mf,cs) |
49 | * _txt (pa) | |
c91e3ed3 MW |
50 | * _inaddr (pa,di,cs |
51 | * +search_sortlist, dip_genaddr, csp_genaddr) | |
eeee7503 | 52 | * _in6addr (pa,di,cs) |
92c8ebba MW |
53 | * _addr (pa,di,div,csp,cs,gsz,qs |
54 | * +search_sortlst_sa, dip_sockaddr, | |
55 | * addr_rrtypes, icb_addr) | |
382b81f7 MW |
56 | * _domain (pap,csp,cs) |
57 | * _dom_raw (pa) | |
eb81d633 | 58 | * _host_raw (pa) |
382b81f7 MW |
59 | * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs |
60 | * +pap_findaddrs, icb_hostaddr) | |
eb81d633 | 61 | * _mx_raw (pa,di) |
62 | * _mx (pa,di) | |
63 | * _inthostaddr (mf,cs) | |
382b81f7 | 64 | * _inthost (cs) |
938b0228 | 65 | * _ptr (ckl,pa +icb_ptr) |
382b81f7 MW |
66 | * _strpair (mf) |
67 | * _intstrpair (mf) | |
9ec44266 | 68 | * _hinfo (pa) |
382b81f7 MW |
69 | * _mailbox (pap,csp +pap_mailbox822) |
70 | * _rp (pa,cs) | |
9ec44266 | 71 | * _soa (pa,mf,cs) |
e8e5aeac | 72 | * _srv* (ckl,(pap),pa*2,mf*2,di,(csp),cs*2,postsort) |
2c6eb096 | 73 | * _byteblock (mf) |
74 | * _opaque (pa,cs) | |
eb81d633 | 75 | * _flat (mf) |
76 | * | |
77 | * within each section: | |
e8e5aeac | 78 | * ckl_* |
eb81d633 | 79 | * pap_* |
80 | * pa_* | |
81 | * dip_* | |
82 | * di_* | |
83 | * mfp_* | |
84 | * mf_* | |
85 | * csp_* | |
86 | * cs_* | |
b0a32b17 | 87 | * gsz_* |
d24e2a7e | 88 | * postsort_* |
a586770a | 89 | * qs_* |
eb81d633 | 90 | */ |
91 | ||
92 | /* | |
b365d68a | 93 | * _qstring (pap,csp) |
eb81d633 | 94 | */ |
95 | ||
b365d68a | 96 | static adns_status pap_qstring(const parseinfo *pai, int *cbyte_io, int max, |
9ec44266 | 97 | int *len_r, char **str_r) { |
98 | /* Neither len_r nor str_r may be null. | |
99 | * End of datagram (overrun) is indicated by returning adns_s_invaliddata; | |
100 | */ | |
101 | const byte *dgram= pai->dgram; | |
102 | int l, cbyte; | |
103 | char *str; | |
104 | ||
105 | cbyte= *cbyte_io; | |
106 | ||
107 | if (cbyte >= max) return adns_s_invaliddata; | |
108 | GET_B(cbyte,l); | |
109 | if (cbyte+l > max) return adns_s_invaliddata; | |
110 | ||
111 | str= adns__alloc_interim(pai->qu, l+1); | |
112 | if (!str) R_NOMEM; | |
113 | ||
114 | str[l]= 0; | |
115 | memcpy(str,dgram+cbyte,l); | |
116 | ||
117 | *len_r= l; | |
118 | *str_r= str; | |
119 | *cbyte_io= cbyte+l; | |
120 | ||
121 | return adns_s_ok; | |
122 | } | |
123 | ||
b365d68a | 124 | static adns_status csp_qstring(vbuf *vb, const char *dp, int len) { |
eb81d633 | 125 | unsigned char ch; |
126 | char buf[10]; | |
127 | int cn; | |
128 | ||
129 | CSP_ADDSTR("\""); | |
130 | for (cn=0; cn<len; cn++) { | |
131 | ch= *dp++; | |
b365d68a | 132 | if (ch == '\\') { |
9ec44266 | 133 | CSP_ADDSTR("\\\\"); |
b365d68a | 134 | } else if (ch == '"') { |
135 | CSP_ADDSTR("\\\""); | |
136 | } else if (ch >= 32 && ch <= 126) { | |
137 | if (!adns__vbuf_append(vb,&ch,1)) R_NOMEM; | |
eb81d633 | 138 | } else { |
9ec44266 | 139 | sprintf(buf,"\\x%02x",ch); |
eb81d633 | 140 | CSP_ADDSTR(buf); |
141 | } | |
142 | } | |
143 | CSP_ADDSTR("\""); | |
144 | ||
145 | return adns_s_ok; | |
146 | } | |
147 | ||
eb81d633 | 148 | /* |
b365d68a | 149 | * _str (mf) |
eb81d633 | 150 | */ |
151 | ||
152 | static void mf_str(adns_query qu, void *datap) { | |
153 | char **rrp= datap; | |
154 | ||
155 | adns__makefinal_str(qu,rrp); | |
156 | } | |
157 | ||
eb81d633 | 158 | /* |
b365d68a | 159 | * _intstr (mf) |
eb81d633 | 160 | */ |
161 | ||
162 | static void mf_intstr(adns_query qu, void *datap) { | |
163 | adns_rr_intstr *rrp= datap; | |
164 | ||
165 | adns__makefinal_str(qu,&rrp->str); | |
166 | } | |
167 | ||
eb81d633 | 168 | /* |
b365d68a | 169 | * _manyistr (mf) |
eb81d633 | 170 | */ |
171 | ||
172 | static void mf_manyistr(adns_query qu, void *datap) { | |
173 | adns_rr_intstr **rrp= datap; | |
174 | adns_rr_intstr *te, *table; | |
175 | void *tablev; | |
176 | int tc; | |
177 | ||
178 | for (tc=0, te= *rrp; te->i >= 0; te++, tc++); | |
179 | tablev= *rrp; | |
180 | adns__makefinal_block(qu,&tablev,sizeof(*te)*(tc+1)); | |
181 | *rrp= table= tablev; | |
182 | for (te= *rrp; te->i >= 0; te++) | |
183 | adns__makefinal_str(qu,&te->str); | |
184 | } | |
185 | ||
eb81d633 | 186 | /* |
b365d68a | 187 | * _txt (pa,cs) |
eb81d633 | 188 | */ |
189 | ||
609133ee | 190 | static adns_status pa_txt(const parseinfo *pai, int cbyte, |
191 | int max, void *datap) { | |
eb81d633 | 192 | adns_rr_intstr **rrp= datap, *table, *te; |
193 | const byte *dgram= pai->dgram; | |
194 | int ti, tc, l, startbyte; | |
9ec44266 | 195 | adns_status st; |
eb81d633 | 196 | |
197 | startbyte= cbyte; | |
198 | if (cbyte >= max) return adns_s_invaliddata; | |
199 | tc= 0; | |
200 | while (cbyte < max) { | |
201 | GET_B(cbyte,l); | |
202 | cbyte+= l; | |
9ec44266 | 203 | tc++; |
eb81d633 | 204 | } |
b365d68a | 205 | if (cbyte != max || !tc) return adns_s_invaliddata; |
eb81d633 | 206 | |
207 | table= adns__alloc_interim(pai->qu,sizeof(*table)*(tc+1)); | |
208 | if (!table) R_NOMEM; | |
209 | ||
210 | for (cbyte=startbyte, ti=0, te=table; ti<tc; ti++, te++) { | |
b365d68a | 211 | st= pap_qstring(pai, &cbyte, max, &te->i, &te->str); |
9ec44266 | 212 | if (st) return st; |
eb81d633 | 213 | } |
214 | assert(cbyte == max); | |
215 | ||
216 | te->i= -1; | |
217 | te->str= 0; | |
218 | ||
219 | *rrp= table; | |
220 | return adns_s_ok; | |
828d89bd | 221 | } |
222 | ||
b365d68a | 223 | static adns_status cs_txt(vbuf *vb, const void *datap) { |
224 | const adns_rr_intstr *const *rrp= datap; | |
225 | const adns_rr_intstr *current; | |
226 | adns_status st; | |
227 | int spc; | |
228 | ||
229 | for (current= *rrp, spc=0; current->i >= 0; current++, spc=1) { | |
230 | if (spc) CSP_ADDSTR(" "); | |
231 | st= csp_qstring(vb,current->str,current->i); if (st) return st; | |
232 | } | |
233 | return adns_s_ok; | |
234 | } | |
235 | ||
236 | /* | |
237 | * _hinfo (cs) | |
238 | */ | |
239 | ||
240 | static adns_status cs_hinfo(vbuf *vb, const void *datap) { | |
241 | const adns_rr_intstrpair *rrp= datap; | |
242 | adns_status st; | |
243 | ||
244 | st= csp_qstring(vb,rrp->array[0].str,rrp->array[0].i); if (st) return st; | |
245 | CSP_ADDSTR(" "); | |
246 | st= csp_qstring(vb,rrp->array[1].str,rrp->array[1].i); if (st) return st; | |
247 | return adns_s_ok; | |
248 | } | |
249 | ||
eb81d633 | 250 | /* |
c91e3ed3 | 251 | * _inaddr (pa,di,cs +search_sortlist, dip_genaddr, csp_genaddr) |
eb81d633 | 252 | */ |
253 | ||
609133ee | 254 | static adns_status pa_inaddr(const parseinfo *pai, int cbyte, |
255 | int max, void *datap) { | |
e062dcae | 256 | struct in_addr *storeto= datap; |
e7a9ca47 | 257 | |
258 | if (max-cbyte != 4) return adns_s_invaliddata; | |
1dfe95d8 | 259 | memcpy(storeto, pai->dgram + cbyte, 4); |
e7a9ca47 | 260 | return adns_s_ok; |
261 | } | |
262 | ||
f930c455 | 263 | static int search_sortlist(adns_state ads, int af, const void *ad) { |
09957b1c | 264 | const struct sortlist *slp; |
c4e5d3cc MW |
265 | const struct in6_addr *a6; |
266 | union gen_addr a; | |
09957b1c | 267 | int i; |
c4e5d3cc MW |
268 | int v6mappedp= 0; |
269 | ||
270 | if (af == AF_INET6) { | |
271 | a6= ad; | |
272 | if (IN6_IS_ADDR_V4MAPPED(a6)) { | |
273 | a.v4.s_addr= htonl(((unsigned long)a6->s6_addr[12] << 24) | | |
274 | ((unsigned long)a6->s6_addr[13] << 16) | | |
275 | ((unsigned long)a6->s6_addr[14] << 8) | | |
276 | ((unsigned long)a6->s6_addr[15] << 0)); | |
277 | v6mappedp= 1; | |
278 | } | |
279 | } | |
280 | ||
09957b1c | 281 | for (i=0, slp=ads->sortlist; |
609133ee | 282 | i<ads->nsortlist && |
c4e5d3cc MW |
283 | !adns__addr_match_p(af,ad, slp->af,&slp->base,&slp->mask) && |
284 | !(v6mappedp && | |
285 | adns__addr_match_p(AF_INET,&a, slp->af,&slp->base,&slp->mask)); | |
09957b1c | 286 | i++, slp++); |
287 | return i; | |
eb81d633 | 288 | } |
289 | ||
f930c455 | 290 | static int dip_genaddr(adns_state ads, int af, const void *a, const void *b) { |
09957b1c | 291 | int ai, bi; |
292 | ||
293 | if (!ads->nsortlist) return 0; | |
294 | ||
f930c455 MW |
295 | ai= search_sortlist(ads,af,a); |
296 | bi= search_sortlist(ads,af,b); | |
09957b1c | 297 | return bi<ai; |
298 | } | |
299 | ||
609133ee | 300 | static int di_inaddr(adns_state ads, |
301 | const void *datap_a, const void *datap_b) { | |
f930c455 | 302 | return dip_genaddr(ads,AF_INET,datap_a,datap_b); |
e062dcae | 303 | } |
304 | ||
c91e3ed3 MW |
305 | static adns_status csp_genaddr(vbuf *vb, int af, const void *p) { |
306 | char buf[ADNS_ADDR2TEXT_BUFLEN]; | |
307 | int len= sizeof(buf); | |
308 | adns_rr_addr a; | |
309 | int err; | |
310 | ||
311 | memset(&a, 0, sizeof(a)); | |
312 | a.addr.sa.sa_family= af; | |
313 | adns__sockaddr_inject(p, 0, &a.addr.sa); | |
314 | err= adns_addr2text(&a.addr.sa,0, buf,&len, 0); assert(!err); | |
315 | CSP_ADDSTR(buf); | |
1dfe95d8 | 316 | return adns_s_ok; |
86e7b8d9 | 317 | } |
e7a9ca47 | 318 | |
c91e3ed3 MW |
319 | static adns_status cs_inaddr(vbuf *vb, const void *datap) { |
320 | return csp_genaddr(vb, AF_INET,datap); | |
321 | } | |
322 | ||
eb81d633 | 323 | /* |
eeee7503 MW |
324 | * _in6addr (pa,di,cs) |
325 | */ | |
326 | ||
327 | static adns_status pa_in6addr(const parseinfo *pai, int cbyte, | |
328 | int max, void *datap) { | |
329 | struct in6_addr *storeto= datap; | |
330 | ||
331 | if (max-cbyte != 16) return adns_s_invaliddata; | |
332 | memcpy(storeto->s6_addr, pai->dgram + cbyte, 16); | |
333 | return adns_s_ok; | |
334 | } | |
335 | ||
336 | static int di_in6addr(adns_state ads, | |
337 | const void *datap_a, const void *datap_b) { | |
338 | return dip_genaddr(ads,AF_INET6,datap_a,datap_b); | |
339 | } | |
340 | ||
341 | static adns_status cs_in6addr(vbuf *vb, const void *datap) { | |
342 | return csp_genaddr(vb,AF_INET6,datap); | |
343 | } | |
344 | ||
345 | /* | |
92c8ebba MW |
346 | * _addr (pa,di,div,csp,cs,gsz,qs |
347 | * +search_sortlist_sa, dip_sockaddr, addr_rrtypes, icb_addr) | |
eb81d633 | 348 | */ |
349 | ||
92c8ebba MW |
350 | static const typeinfo tinfo_addrsub; |
351 | ||
352 | #define ADDR_RRTYPES(_) _(a) | |
353 | ||
354 | static const adns_rrtype addr_all_rrtypes[] = { | |
355 | #define RRTY_CODE(ty) adns_r_##ty, | |
356 | ADDR_RRTYPES(RRTY_CODE) | |
357 | #undef RRTY_CODE | |
358 | }; | |
359 | ||
360 | enum { | |
361 | #define RRTY_INDEX(ty) addr__ri_##ty, | |
362 | ADDR_RRTYPES(RRTY_INDEX) | |
363 | #undef RRTY_INDEX | |
364 | addr_nrrtypes, | |
365 | #define RRTY_FLAG(ty) addr_rf_##ty = 1 << addr__ri_##ty, | |
366 | ADDR_RRTYPES(RRTY_FLAG) | |
367 | addr__rrty_hunoz | |
368 | #undef RRTY_FLAG | |
369 | }; | |
370 | ||
371 | static unsigned addr_rrtypeflag(adns_rrtype type) { | |
372 | int i; | |
373 | ||
374 | type &= adns_rrt_typemask; | |
375 | for (i=0; i<addr_nrrtypes && type!=addr_all_rrtypes[i]; i++); | |
376 | return i < addr_nrrtypes ? 1 << i : 0; | |
377 | } | |
378 | ||
609133ee | 379 | static adns_status pa_addr(const parseinfo *pai, int cbyte, |
380 | int max, void *datap) { | |
551ff40f | 381 | adns_rr_addr *storeto= datap; |
1dfe95d8 | 382 | const byte *dgram= pai->dgram; |
c7836bc9 | 383 | |
828d89bd | 384 | if (max-cbyte != 4) return adns_s_invaliddata; |
385 | storeto->len= sizeof(storeto->addr.inet); | |
386 | memset(&storeto->addr,0,sizeof(storeto->addr.inet)); | |
387 | storeto->addr.inet.sin_family= AF_INET; | |
828d89bd | 388 | memcpy(&storeto->addr.inet.sin_addr,dgram+cbyte,4); |
389 | return adns_s_ok; | |
390 | } | |
391 | ||
f930c455 | 392 | static int search_sortlist_sa(adns_state ads, const struct sockaddr *sa) { |
07554ccd MW |
393 | union gen_addr a; |
394 | adns__sockaddr_extract(sa, &a, 0); | |
395 | return search_sortlist(ads, sa->sa_family, &a); | |
f930c455 | 396 | } |
07554ccd | 397 | |
f930c455 MW |
398 | static int dip_sockaddr(adns_state ads, |
399 | const struct sockaddr *sa, | |
400 | const struct sockaddr *sb) { | |
401 | if (!ads->sortlist) return 0; | |
402 | return search_sortlist_sa(ads, sa) > search_sortlist_sa(ads, sb); | |
403 | } | |
404 | ||
09957b1c | 405 | static int di_addr(adns_state ads, const void *datap_a, const void *datap_b) { |
551ff40f | 406 | const adns_rr_addr *ap= datap_a, *bp= datap_b; |
f930c455 | 407 | return dip_sockaddr(ads, &ap->addr.sa, &bp->addr.sa); |
828d89bd | 408 | } |
409 | ||
09957b1c | 410 | static int div_addr(void *context, const void *datap_a, const void *datap_b) { |
411 | const adns_state ads= context; | |
412 | ||
413 | return di_addr(ads, datap_a, datap_b); | |
414 | } | |
415 | ||
551ff40f | 416 | static adns_status csp_addr(vbuf *vb, const adns_rr_addr *rrp) { |
c91e3ed3 MW |
417 | char buf[ADNS_ADDR2TEXT_BUFLEN]; |
418 | int len= sizeof(buf); | |
419 | int err; | |
828d89bd | 420 | |
421 | switch (rrp->addr.inet.sin_family) { | |
422 | case AF_INET: | |
b365d68a | 423 | CSP_ADDSTR("INET "); |
c91e3ed3 MW |
424 | goto a2t; |
425 | case AF_INET6: | |
426 | CSP_ADDSTR("INET6 "); | |
427 | goto a2t; | |
428 | a2t: | |
429 | err= adns_addr2text(&rrp->addr.sa,0, buf,&len, 0); assert(!err); | |
430 | CSP_ADDSTR(buf); | |
828d89bd | 431 | break; |
432 | default: | |
433 | sprintf(buf,"AF=%u",rrp->addr.sa.sa_family); | |
1dfe95d8 | 434 | CSP_ADDSTR(buf); |
828d89bd | 435 | break; |
436 | } | |
437 | return adns_s_ok; | |
438 | } | |
439 | ||
1dfe95d8 | 440 | static adns_status cs_addr(vbuf *vb, const void *datap) { |
551ff40f | 441 | const adns_rr_addr *rrp= datap; |
1dfe95d8 | 442 | |
443 | return csp_addr(vb,rrp); | |
444 | } | |
445 | ||
b0a32b17 MW |
446 | static int gsz_addr(const typeinfo *typei, adns_rrtype type) { |
447 | return type & adns__qtf_bigaddr ? | |
448 | sizeof(adns_rr_addr) : sizeof(adns_rr_addr_v4only); | |
449 | } | |
450 | ||
92c8ebba MW |
451 | static unsigned addr_rrtypes(adns_state ads, adns_rrtype type, |
452 | adns_queryflags qf) { | |
453 | /* Return a mask of addr_rf_... flags indicating which address families are | |
454 | * wanted, given a query type and flags. | |
455 | */ | |
456 | return addr_rf_a; | |
457 | } | |
458 | ||
459 | static void icb_addr(adns_query parent, adns_query child); | |
460 | ||
461 | static void addr_subqueries(adns_query qu, struct timeval now, | |
462 | adns_queryflags qf_extra, | |
463 | const byte *qd_dgram, int qd_dglen) { | |
464 | int i, err, id; | |
465 | adns_query cqu; | |
466 | adns_queryflags qf= (qu->flags & ~adns_qf_search) | qf_extra; | |
467 | adns_rrtype qtf= qu->answer->type & adns__qtf_deref; | |
468 | unsigned which= qu->ctx.tinfo.addr.want & ~qu->ctx.tinfo.addr.have; | |
469 | qcontext ctx; | |
470 | ||
471 | memset(&ctx, 0, sizeof(ctx)); | |
472 | ctx.callback= icb_addr; | |
473 | for (i=0; i<addr_nrrtypes; i++) { | |
474 | if (!(which & (1 << i))) continue; | |
475 | err= adns__mkquery_frdgram(qu->ads, &qu->vb, &id, qd_dgram,qd_dglen, | |
476 | DNS_HDRSIZE, addr_all_rrtypes[i], qf); | |
477 | if (err) goto x_error; | |
478 | err= adns__internal_submit(qu->ads, &cqu, qu, &tinfo_addrsub, | |
479 | addr_all_rrtypes[i] | qtf, | |
480 | &qu->vb, id, qf, now, &ctx); | |
481 | if (err) goto x_error; | |
482 | cqu->answer->rrsz= qu->answer->rrsz; | |
483 | } | |
484 | qu->state= query_childw; | |
485 | LIST_LINK_TAIL(qu->ads->childw, qu); | |
486 | return; | |
487 | ||
488 | x_error: | |
489 | adns__query_fail(qu, err); | |
490 | } | |
491 | ||
492 | static adns_status append_addrs(adns_query qu, size_t rrsz, | |
493 | adns_rr_addr **dp, int *dlen, | |
494 | const adns_rr_addr *sp, int slen) { | |
495 | /* Append a vector of slen addr records, each of size rrsz, starting at ap, | |
496 | * to a vector starting at *dp, of length *dlen. On successful completion, | |
497 | * *dp and *dlen are updated. | |
498 | */ | |
499 | ||
500 | size_t drrsz= *dlen*rrsz, srrsz= slen*rrsz; | |
501 | byte *p; | |
502 | ||
503 | if (!slen) return adns_s_ok; | |
504 | p= adns__alloc_interim(qu, drrsz + srrsz); | |
505 | if (!p) R_NOMEM; | |
506 | if (*dlen) { | |
507 | memcpy(p, *dp, drrsz); | |
508 | adns__free_interim(qu, *dp); | |
509 | } | |
510 | memcpy(p + drrsz, sp, srrsz); | |
511 | *dlen += slen; | |
512 | *dp= (adns_rr_addr *)p; | |
513 | return adns_s_ok; | |
514 | } | |
515 | ||
516 | static void propagate_ttl(adns_query to, adns_query from) | |
517 | { if (to->expires > from->expires) to->expires= from->expires; } | |
518 | ||
519 | static adns_status copy_cname_from_child(adns_query parent, adns_query child) { | |
520 | adns_answer *pans= parent->answer, *cans= child->answer; | |
521 | size_t n= strlen(cans->cname) + 1; | |
522 | ||
523 | pans->cname= adns__alloc_preserved(parent, n); | |
524 | if (!pans->cname) R_NOMEM; | |
525 | memcpy(pans->cname, cans->cname, n); | |
526 | return adns_s_ok; | |
527 | } | |
528 | ||
529 | static void done_addr_type(adns_query qu, adns_rrtype type) { | |
530 | unsigned f= addr_rrtypeflag(type); | |
531 | assert(f); qu->ctx.tinfo.addr.have |= f; | |
532 | } | |
533 | ||
534 | static void icb_addr(adns_query parent, adns_query child) { | |
535 | adns_state ads= parent->ads; | |
536 | adns_answer *pans= parent->answer, *cans= child->answer; | |
537 | struct timeval now; | |
538 | adns_status err; | |
539 | ||
540 | propagate_ttl(parent, child); | |
541 | ||
542 | if (cans->cname && !pans->cname) { | |
543 | err= copy_cname_from_child(parent, child); | |
544 | if (err) goto x_err; | |
545 | } | |
546 | ||
547 | if ((parent->flags & adns_qf_search) && | |
548 | !pans->cname && cans->status == adns_s_nxdomain) { | |
549 | /* We're searching a list of suffixes, and the name doesn't exist. Try | |
550 | * the next one. | |
551 | */ | |
552 | ||
553 | adns__cancel_children(parent); | |
554 | adns__free_interim(parent, pans->rrs.bytes); | |
555 | pans->rrs.bytes= 0; pans->nrrs= 0; | |
556 | if (gettimeofday(&now, 0)) goto x_gtod; | |
557 | adns__search_next(ads, parent, now); | |
558 | return; | |
559 | } | |
560 | ||
561 | if (cans->status && cans->status != adns_s_nodata) | |
562 | { err= cans->status; goto x_err; } | |
563 | ||
564 | assert(pans->rrsz == cans->rrsz); | |
565 | err= append_addrs(parent, pans->rrsz, | |
566 | &pans->rrs.addr, &pans->nrrs, | |
567 | cans->rrs.addr, cans->nrrs); | |
568 | if (err) goto x_err; | |
569 | done_addr_type(parent, cans->type); | |
570 | ||
571 | if (parent->children.head) LIST_LINK_TAIL(ads->childw, parent); | |
572 | else if (!pans->nrrs) adns__query_fail(parent, adns_s_nodata); | |
573 | else adns__query_done(parent); | |
574 | return; | |
575 | ||
576 | x_gtod: | |
577 | adns__diag(ads, -1, parent, "gettimeofday failed: %s", strerror(errno)); | |
578 | err= adns_s_systemfail; | |
579 | goto x_err; | |
580 | ||
581 | x_err: | |
582 | adns__query_fail(parent, err); | |
583 | } | |
584 | ||
585 | static void qs_addr(adns_query qu, struct timeval now) { | |
586 | if (!qu->ctx.tinfo.addr.want) { | |
587 | qu->ctx.tinfo.addr.want= addr_rrtypes(qu->ads, qu->answer->type, | |
588 | qu->flags); | |
589 | qu->ctx.tinfo.addr.have= 0; | |
590 | } | |
591 | addr_subqueries(qu, now, 0, qu->query_dgram, qu->query_dglen); | |
592 | } | |
593 | ||
eb81d633 | 594 | /* |
b365d68a | 595 | * _domain (pap,csp,cs) |
596 | * _dom_raw (pa) | |
eb81d633 | 597 | */ |
598 | ||
1dfe95d8 | 599 | static adns_status pap_domain(const parseinfo *pai, int *cbyte_io, int max, |
600 | char **domain_r, parsedomain_flags flags) { | |
e062dcae | 601 | adns_status st; |
602 | char *dm; | |
603 | ||
1dfe95d8 | 604 | st= adns__parse_domain(pai->qu->ads, pai->serv, pai->qu, &pai->qu->vb, flags, |
605 | pai->dgram,pai->dglen, cbyte_io, max); | |
e062dcae | 606 | if (st) return st; |
1dfe95d8 | 607 | if (!pai->qu->vb.used) return adns_s_invaliddata; |
e062dcae | 608 | |
1dfe95d8 | 609 | dm= adns__alloc_interim(pai->qu, pai->qu->vb.used+1); |
610 | if (!dm) R_NOMEM; | |
e062dcae | 611 | |
1dfe95d8 | 612 | dm[pai->qu->vb.used]= 0; |
613 | memcpy(dm,pai->qu->vb.buf,pai->qu->vb.used); | |
e062dcae | 614 | |
615 | *domain_r= dm; | |
616 | return adns_s_ok; | |
617 | } | |
618 | ||
b365d68a | 619 | static adns_status csp_domain(vbuf *vb, const char *domain) { |
620 | CSP_ADDSTR(domain); | |
621 | if (!*domain) CSP_ADDSTR("."); | |
622 | return adns_s_ok; | |
623 | } | |
624 | ||
625 | static adns_status cs_domain(vbuf *vb, const void *datap) { | |
626 | const char *const *domainp= datap; | |
627 | return csp_domain(vb,*domainp); | |
628 | } | |
629 | ||
609133ee | 630 | static adns_status pa_dom_raw(const parseinfo *pai, int cbyte, |
631 | int max, void *datap) { | |
b365d68a | 632 | char **rrp= datap; |
633 | adns_status st; | |
634 | ||
635 | st= pap_domain(pai, &cbyte, max, rrp, pdf_quoteok); | |
636 | if (st) return st; | |
637 | ||
638 | if (cbyte != max) return adns_s_invaliddata; | |
639 | return adns_s_ok; | |
640 | } | |
641 | ||
eb81d633 | 642 | /* |
643 | * _host_raw (pa) | |
644 | */ | |
645 | ||
609133ee | 646 | static adns_status pa_host_raw(const parseinfo *pai, int cbyte, |
647 | int max, void *datap) { | |
e062dcae | 648 | char **rrp= datap; |
ffbda80c | 649 | adns_status st; |
86e7b8d9 | 650 | |
1dfe95d8 | 651 | st= pap_domain(pai, &cbyte, max, rrp, |
652 | pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); | |
e062dcae | 653 | if (st) return st; |
654 | ||
655 | if (cbyte != max) return adns_s_invaliddata; | |
656 | return adns_s_ok; | |
657 | } | |
ffbda80c | 658 | |
eb81d633 | 659 | /* |
382b81f7 | 660 | * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +pap_findaddrs, icb_hostaddr) |
eb81d633 | 661 | */ |
c7836bc9 | 662 | |
1dfe95d8 | 663 | static adns_status pap_findaddrs(const parseinfo *pai, adns_rr_hostaddr *ha, |
b0a32b17 | 664 | size_t addrsz, |
1dfe95d8 | 665 | int *cbyte_io, int count, int dmstart) { |
666 | int rri, naddrs; | |
c7836bc9 | 667 | int type, class, rdlen, rdstart, ownermatched; |
73dba56e | 668 | unsigned long ttl; |
1dfe95d8 | 669 | adns_status st; |
c7836bc9 | 670 | |
1dfe95d8 | 671 | for (rri=0, naddrs=-1; rri<count; rri++) { |
609133ee | 672 | st= adns__findrr_anychk(pai->qu, pai->serv, pai->dgram, |
673 | pai->dglen, cbyte_io, | |
73dba56e | 674 | &type, &class, &ttl, &rdlen, &rdstart, |
1dfe95d8 | 675 | pai->dgram, pai->dglen, dmstart, &ownermatched); |
c7836bc9 | 676 | if (st) return st; |
1dfe95d8 | 677 | if (!ownermatched || class != DNS_CLASS_IN || type != adns_r_a) { |
678 | if (naddrs>0) break; else continue; | |
679 | } | |
680 | if (naddrs == -1) { | |
681 | naddrs= 0; | |
c7836bc9 | 682 | } |
b0a32b17 | 683 | if (!adns__vbuf_ensure(&pai->qu->vb, (naddrs+1)*addrsz)) |
609133ee | 684 | R_NOMEM; |
73dba56e | 685 | adns__update_expires(pai->qu,ttl,pai->now); |
b0a32b17 | 686 | st= pa_addr(pai, rdstart,rdstart+rdlen, pai->qu->vb.buf + naddrs*addrsz); |
c7836bc9 | 687 | if (st) return st; |
1dfe95d8 | 688 | naddrs++; |
c7836bc9 | 689 | } |
1dfe95d8 | 690 | if (naddrs >= 0) { |
b0a32b17 | 691 | ha->addrs= adns__alloc_interim(pai->qu, naddrs*addrsz); |
1dfe95d8 | 692 | if (!ha->addrs) R_NOMEM; |
b0a32b17 | 693 | memcpy(ha->addrs, pai->qu->vb.buf, naddrs*addrsz); |
1dfe95d8 | 694 | ha->naddrs= naddrs; |
c7836bc9 | 695 | ha->astatus= adns_s_ok; |
1dfe95d8 | 696 | |
b0a32b17 | 697 | adns__isort(ha->addrs, naddrs, addrsz, pai->qu->vb.buf, |
09957b1c | 698 | div_addr, pai->ads); |
c7836bc9 | 699 | } |
700 | return adns_s_ok; | |
701 | } | |
702 | ||
551ff40f | 703 | static void icb_hostaddr(adns_query parent, adns_query child) { |
551ff40f | 704 | adns_answer *cans= child->answer; |
0ea82d76 | 705 | adns_rr_hostaddr *rrp= child->ctx.pinfo.hostaddr; |
4218fb9a | 706 | adns_state ads= parent->ads; |
b365d68a | 707 | adns_status st; |
551ff40f | 708 | |
b365d68a | 709 | st= cans->status; |
710 | rrp->astatus= st; | |
711 | rrp->naddrs= (st>0 && st<=adns_s_max_tempfail) ? -1 : cans->nrrs; | |
551ff40f | 712 | rrp->addrs= cans->rrs.addr; |
ca00c406 | 713 | adns__transfer_interim(child, parent, rrp->addrs); |
a6536d8b | 714 | |
4218fb9a | 715 | if (parent->children.head) { |
716 | LIST_LINK_TAIL(ads->childw,parent); | |
717 | } else { | |
718 | adns__query_done(parent); | |
719 | } | |
551ff40f | 720 | } |
721 | ||
1dfe95d8 | 722 | static adns_status pap_hostaddr(const parseinfo *pai, int *cbyte_io, |
723 | int max, adns_rr_hostaddr *rrp) { | |
c7836bc9 | 724 | adns_status st; |
725 | int dmstart, cbyte; | |
7da21070 | 726 | qcontext ctx; |
727 | int id; | |
728 | adns_query nqu; | |
4b707d8b | 729 | adns_queryflags nflags; |
b0a32b17 | 730 | size_t addrsz= gsz_addr(0, pai->qu->answer->type); |
c7836bc9 | 731 | |
732 | dmstart= cbyte= *cbyte_io; | |
1dfe95d8 | 733 | st= pap_domain(pai, &cbyte, max, &rrp->host, |
734 | pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); | |
c7836bc9 | 735 | if (st) return st; |
736 | *cbyte_io= cbyte; | |
737 | ||
738 | rrp->astatus= adns_s_ok; | |
739 | rrp->naddrs= -1; | |
740 | rrp->addrs= 0; | |
741 | ||
1dfe95d8 | 742 | cbyte= pai->nsstart; |
c7836bc9 | 743 | |
b0a32b17 | 744 | st= pap_findaddrs(pai, rrp,addrsz, &cbyte, pai->nscount, dmstart); |
c7836bc9 | 745 | if (st) return st; |
746 | if (rrp->naddrs != -1) return adns_s_ok; | |
747 | ||
b0a32b17 | 748 | st= pap_findaddrs(pai, rrp,addrsz, &cbyte, pai->arcount, dmstart); |
c7836bc9 | 749 | if (st) return st; |
750 | if (rrp->naddrs != -1) return adns_s_ok; | |
1dfe95d8 | 751 | |
7da21070 | 752 | st= adns__mkquery_frdgram(pai->ads, &pai->qu->vb, &id, |
753 | pai->dgram, pai->dglen, dmstart, | |
754 | adns_r_addr, adns_qf_quoteok_query); | |
755 | if (st) return st; | |
551ff40f | 756 | |
a6536d8b | 757 | ctx.ext= 0; |
758 | ctx.callback= icb_hostaddr; | |
0ea82d76 MW |
759 | ctx.pinfo.hostaddr= rrp; |
760 | memset(&ctx.tinfo, 0, sizeof(ctx.tinfo)); | |
4b707d8b | 761 | |
762 | nflags= adns_qf_quoteok_query; | |
763 | if (!(pai->qu->flags & adns_qf_cname_loose)) nflags |= adns_qf_cname_forbid; | |
764 | ||
e2ae1741 IJ |
765 | st= adns__internal_submit(pai->ads, &nqu, pai->qu, |
766 | adns__findtype(adns_r_addr), | |
7f593711 MW |
767 | ((adns_r_addr & adns_rrt_reprmask) | |
768 | (pai->qu->answer->type & ~adns_rrt_reprmask)), | |
660d7d3b | 769 | &pai->qu->vb, id, nflags, pai->now, &ctx); |
7da21070 | 770 | if (st) return st; |
771 | ||
1dfe95d8 | 772 | return adns_s_ok; |
c7836bc9 | 773 | } |
774 | ||
609133ee | 775 | static adns_status pa_hostaddr(const parseinfo *pai, int cbyte, |
776 | int max, void *datap) { | |
1dfe95d8 | 777 | adns_rr_hostaddr *rrp= datap; |
c7836bc9 | 778 | adns_status st; |
c7836bc9 | 779 | |
1dfe95d8 | 780 | st= pap_hostaddr(pai, &cbyte, max, rrp); |
c7836bc9 | 781 | if (st) return st; |
782 | if (cbyte != max) return adns_s_invaliddata; | |
783 | ||
1dfe95d8 | 784 | return adns_s_ok; |
785 | } | |
c7836bc9 | 786 | |
609133ee | 787 | static int dip_hostaddr(adns_state ads, |
788 | const adns_rr_hostaddr *ap, const adns_rr_hostaddr *bp) { | |
1dfe95d8 | 789 | if (ap->astatus != bp->astatus) return ap->astatus; |
790 | if (ap->astatus) return 0; | |
c7836bc9 | 791 | |
f930c455 | 792 | return dip_sockaddr(ads, &ap->addrs[0].addr.sa, &bp->addrs[0].addr.sa); |
1dfe95d8 | 793 | } |
794 | ||
609133ee | 795 | static int di_hostaddr(adns_state ads, |
796 | const void *datap_a, const void *datap_b) { | |
1dfe95d8 | 797 | const adns_rr_hostaddr *ap= datap_a, *bp= datap_b; |
798 | ||
09957b1c | 799 | return dip_hostaddr(ads, ap,bp); |
c7836bc9 | 800 | } |
801 | ||
eb81d633 | 802 | static void mfp_hostaddr(adns_query qu, adns_rr_hostaddr *rrp) { |
803 | void *tablev; | |
b0a32b17 | 804 | size_t addrsz= gsz_addr(0, qu->answer->type); |
e062dcae | 805 | |
eb81d633 | 806 | adns__makefinal_str(qu,&rrp->host); |
807 | tablev= rrp->addrs; | |
b0a32b17 | 808 | adns__makefinal_block(qu, &tablev, rrp->naddrs*addrsz); |
eb81d633 | 809 | rrp->addrs= tablev; |
e062dcae | 810 | } |
811 | ||
eb81d633 | 812 | static void mf_hostaddr(adns_query qu, void *datap) { |
813 | adns_rr_hostaddr *rrp= datap; | |
e062dcae | 814 | |
eb81d633 | 815 | mfp_hostaddr(qu,rrp); |
e062dcae | 816 | } |
817 | ||
1dfe95d8 | 818 | static adns_status csp_hostaddr(vbuf *vb, const adns_rr_hostaddr *rrp) { |
a6f1dc92 | 819 | const char *errstr; |
1dfe95d8 | 820 | adns_status st; |
ac77ffc1 | 821 | char buf[20]; |
1dfe95d8 | 822 | int i; |
823 | ||
a6f1dc92 | 824 | st= csp_domain(vb,rrp->host); if (st) return st; |
1dfe95d8 | 825 | |
b365d68a | 826 | CSP_ADDSTR(" "); |
ac77ffc1 | 827 | CSP_ADDSTR(adns_errtypeabbrev(rrp->astatus)); |
828 | ||
829 | sprintf(buf," %d ",rrp->astatus); | |
830 | CSP_ADDSTR(buf); | |
a6f1dc92 | 831 | |
ac77ffc1 | 832 | CSP_ADDSTR(adns_errabbrev(rrp->astatus)); |
a6f1dc92 | 833 | CSP_ADDSTR(" "); |
ac77ffc1 | 834 | |
a6f1dc92 | 835 | errstr= adns_strerror(rrp->astatus); |
836 | st= csp_qstring(vb,errstr,strlen(errstr)); if (st) return st; | |
b365d68a | 837 | |
838 | if (rrp->naddrs >= 0) { | |
839 | CSP_ADDSTR(" ("); | |
840 | for (i=0; i<rrp->naddrs; i++) { | |
841 | CSP_ADDSTR(" "); | |
1dfe95d8 | 842 | st= csp_addr(vb,&rrp->addrs[i]); |
843 | } | |
b365d68a | 844 | CSP_ADDSTR(" )"); |
845 | } else { | |
846 | CSP_ADDSTR(" ?"); | |
1dfe95d8 | 847 | } |
848 | return adns_s_ok; | |
849 | } | |
850 | ||
851 | static adns_status cs_hostaddr(vbuf *vb, const void *datap) { | |
852 | const adns_rr_hostaddr *rrp= datap; | |
853 | ||
854 | return csp_hostaddr(vb,rrp); | |
855 | } | |
856 | ||
eb81d633 | 857 | /* |
858 | * _mx_raw (pa,di) | |
859 | */ | |
1dfe95d8 | 860 | |
609133ee | 861 | static adns_status pa_mx_raw(const parseinfo *pai, int cbyte, |
862 | int max, void *datap) { | |
eb81d633 | 863 | const byte *dgram= pai->dgram; |
864 | adns_rr_intstr *rrp= datap; | |
865 | adns_status st; | |
866 | int pref; | |
1dfe95d8 | 867 | |
eb81d633 | 868 | if (cbyte+2 > max) return adns_s_invaliddata; |
869 | GET_W(cbyte,pref); | |
870 | rrp->i= pref; | |
871 | st= pap_domain(pai, &cbyte, max, &rrp->str, | |
872 | pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); | |
873 | if (st) return st; | |
1dfe95d8 | 874 | |
eb81d633 | 875 | if (cbyte != max) return adns_s_invaliddata; |
876 | return adns_s_ok; | |
877 | } | |
1dfe95d8 | 878 | |
09957b1c | 879 | static int di_mx_raw(adns_state ads, const void *datap_a, const void *datap_b) { |
eb81d633 | 880 | const adns_rr_intstr *ap= datap_a, *bp= datap_b; |
881 | ||
882 | if (ap->i < bp->i) return 0; | |
883 | if (ap->i > bp->i) return 1; | |
884 | return 0; | |
1dfe95d8 | 885 | } |
886 | ||
eb81d633 | 887 | /* |
888 | * _mx (pa,di) | |
889 | */ | |
1dfe95d8 | 890 | |
609133ee | 891 | static adns_status pa_mx(const parseinfo *pai, int cbyte, |
892 | int max, void *datap) { | |
eb81d633 | 893 | const byte *dgram= pai->dgram; |
894 | adns_rr_inthostaddr *rrp= datap; | |
895 | adns_status st; | |
896 | int pref; | |
897 | ||
898 | if (cbyte+2 > max) return adns_s_invaliddata; | |
899 | GET_W(cbyte,pref); | |
900 | rrp->i= pref; | |
901 | st= pap_hostaddr(pai, &cbyte, max, &rrp->ha); | |
902 | if (st) return st; | |
903 | ||
904 | if (cbyte != max) return adns_s_invaliddata; | |
905 | return adns_s_ok; | |
906 | } | |
907 | ||
09957b1c | 908 | static int di_mx(adns_state ads, const void *datap_a, const void *datap_b) { |
eb81d633 | 909 | const adns_rr_inthostaddr *ap= datap_a, *bp= datap_b; |
910 | ||
911 | if (ap->i < bp->i) return 0; | |
912 | if (ap->i > bp->i) return 1; | |
09957b1c | 913 | return dip_hostaddr(ads, &ap->ha, &bp->ha); |
1dfe95d8 | 914 | } |
915 | ||
eb81d633 | 916 | /* |
917 | * _inthostaddr (mf,cs) | |
918 | */ | |
919 | ||
1dfe95d8 | 920 | static void mf_inthostaddr(adns_query qu, void *datap) { |
921 | adns_rr_inthostaddr *rrp= datap; | |
922 | ||
923 | mfp_hostaddr(qu,&rrp->ha); | |
924 | } | |
925 | ||
eb81d633 | 926 | static adns_status cs_inthostaddr(vbuf *vb, const void *datap) { |
927 | const adns_rr_inthostaddr *rrp= datap; | |
928 | char buf[10]; | |
e062dcae | 929 | |
eb81d633 | 930 | sprintf(buf,"%u ",rrp->i); |
931 | CSP_ADDSTR(buf); | |
932 | ||
933 | return csp_hostaddr(vb,&rrp->ha); | |
ffbda80c | 934 | } |
935 | ||
eb81d633 | 936 | /* |
b365d68a | 937 | * _inthost (cs) |
938 | */ | |
939 | ||
940 | static adns_status cs_inthost(vbuf *vb, const void *datap) { | |
941 | const adns_rr_intstr *rrp= datap; | |
942 | char buf[10]; | |
943 | ||
944 | sprintf(buf,"%u ",rrp->i); | |
945 | CSP_ADDSTR(buf); | |
946 | return csp_domain(vb,rrp->str); | |
947 | } | |
948 | ||
949 | /* | |
938b0228 | 950 | * _ptr (ckl,pa +icb_ptr) |
a6536d8b | 951 | */ |
952 | ||
938b0228 MW |
953 | static adns_status ckl_ptr(adns_state ads, adns_queryflags flags, |
954 | union checklabel_state *cls, qcontext *ctx, | |
955 | int labnum, const char *label, int lablen) { | |
9c6ba699 MW |
956 | if (lablen) { |
957 | if (adns__revparse_label(&cls->ptr, labnum, label,lablen)) | |
958 | return adns_s_querydomainwrong; | |
938b0228 | 959 | } else { |
9c6ba699 MW |
960 | if (adns__revparse_done(&cls->ptr, labnum, |
961 | &ctx->tinfo.ptr.rev_rrtype, | |
962 | &ctx->tinfo.ptr.addr)) | |
963 | return adns_s_querydomainwrong; | |
938b0228 MW |
964 | } |
965 | return adns_s_ok; | |
966 | } | |
967 | ||
a6536d8b | 968 | static void icb_ptr(adns_query parent, adns_query child) { |
969 | adns_answer *cans= child->answer; | |
f930c455 | 970 | const struct af_addr *queried; |
ac5a2748 | 971 | const unsigned char *found; |
4218fb9a | 972 | adns_state ads= parent->ads; |
a6536d8b | 973 | int i; |
974 | ||
975 | if (cans->status == adns_s_nxdomain || cans->status == adns_s_nodata) { | |
976 | adns__query_fail(parent,adns_s_inconsistent); | |
977 | return; | |
978 | } else if (cans->status) { | |
979 | adns__query_fail(parent,cans->status); | |
980 | return; | |
981 | } | |
982 | ||
ac5a2748 MW |
983 | queried= &parent->ctx.tinfo.ptr.addr; |
984 | for (i=0, found=cans->rrs.bytes; i<cans->nrrs; i++, found+=cans->rrsz) { | |
9c6ba699 MW |
985 | if (adns__genaddr_equal_p(queried->af,&queried->addr, |
986 | parent->ctx.tinfo.ptr.addr.af,found)) { | |
4218fb9a | 987 | if (!parent->children.head) { |
988 | adns__query_done(parent); | |
989 | return; | |
990 | } else { | |
991 | LIST_LINK_TAIL(ads->childw,parent); | |
992 | return; | |
993 | } | |
a6536d8b | 994 | } |
995 | } | |
996 | ||
997 | adns__query_fail(parent,adns_s_inconsistent); | |
998 | } | |
999 | ||
609133ee | 1000 | static adns_status pa_ptr(const parseinfo *pai, int dmstart, |
1001 | int max, void *datap) { | |
a6536d8b | 1002 | char **rrp= datap; |
1003 | adns_status st; | |
9c6ba699 | 1004 | adns_rrtype rrtype= pai->qu->ctx.tinfo.ptr.rev_rrtype; |
938b0228 | 1005 | int cbyte, id; |
a6536d8b | 1006 | adns_query nqu; |
1007 | qcontext ctx; | |
1008 | ||
1009 | cbyte= dmstart; | |
1010 | st= pap_domain(pai, &cbyte, max, rrp, | |
1011 | pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); | |
1012 | if (st) return st; | |
1013 | if (cbyte != max) return adns_s_invaliddata; | |
1014 | ||
a6536d8b | 1015 | st= adns__mkquery_frdgram(pai->ads, &pai->qu->vb, &id, |
1016 | pai->dgram, pai->dglen, dmstart, | |
9c6ba699 | 1017 | rrtype, adns_qf_quoteok_query); |
a6536d8b | 1018 | if (st) return st; |
1019 | ||
1020 | ctx.ext= 0; | |
1021 | ctx.callback= icb_ptr; | |
0ea82d76 MW |
1022 | memset(&ctx.pinfo,0,sizeof(ctx.pinfo)); |
1023 | memset(&ctx.tinfo,0,sizeof(ctx.tinfo)); | |
e2ae1741 IJ |
1024 | st= adns__internal_submit(pai->ads, &nqu, pai->qu, |
1025 | adns__findtype(rrtype), | |
9c6ba699 MW |
1026 | rrtype, &pai->qu->vb, id, |
1027 | adns_qf_quoteok_query, pai->now, &ctx); | |
a6536d8b | 1028 | if (st) return st; |
1029 | ||
a6536d8b | 1030 | return adns_s_ok; |
1031 | } | |
1032 | ||
1033 | /* | |
b365d68a | 1034 | * _strpair (mf) |
9ec44266 | 1035 | */ |
1036 | ||
1037 | static void mf_strpair(adns_query qu, void *datap) { | |
1038 | adns_rr_strpair *rrp= datap; | |
1039 | ||
1040 | adns__makefinal_str(qu,&rrp->array[0]); | |
1041 | adns__makefinal_str(qu,&rrp->array[1]); | |
1042 | } | |
1043 | ||
9ec44266 | 1044 | /* |
b365d68a | 1045 | * _intstrpair (mf) |
9ec44266 | 1046 | */ |
1047 | ||
1048 | static void mf_intstrpair(adns_query qu, void *datap) { | |
1049 | adns_rr_intstrpair *rrp= datap; | |
1050 | ||
1051 | adns__makefinal_str(qu,&rrp->array[0].str); | |
1052 | adns__makefinal_str(qu,&rrp->array[1].str); | |
1053 | } | |
1054 | ||
9ec44266 | 1055 | /* |
1056 | * _hinfo (pa) | |
1057 | */ | |
1058 | ||
609133ee | 1059 | static adns_status pa_hinfo(const parseinfo *pai, int cbyte, |
1060 | int max, void *datap) { | |
9ec44266 | 1061 | adns_rr_intstrpair *rrp= datap; |
1062 | adns_status st; | |
1063 | int i; | |
1064 | ||
1065 | for (i=0; i<2; i++) { | |
b365d68a | 1066 | st= pap_qstring(pai, &cbyte, max, &rrp->array[i].i, &rrp->array[i].str); |
9ec44266 | 1067 | if (st) return st; |
1068 | } | |
1069 | ||
1070 | if (cbyte != max) return adns_s_invaliddata; | |
1071 | ||
1072 | return adns_s_ok; | |
1073 | } | |
1074 | ||
1075 | /* | |
382b81f7 | 1076 | * _mailbox (pap,cs +pap_mailbox822) |
9ec44266 | 1077 | */ |
1078 | ||
609133ee | 1079 | static adns_status pap_mailbox822(const parseinfo *pai, |
1080 | int *cbyte_io, int max, char **mb_r) { | |
eaa44731 | 1081 | int lablen, labstart, i, needquote, c, r, neednorm; |
1082 | const unsigned char *p; | |
1083 | char *str; | |
1084 | findlabel_state fls; | |
1085 | adns_status st; | |
1086 | vbuf *vb; | |
1087 | ||
1088 | vb= &pai->qu->vb; | |
1089 | vb->used= 0; | |
1090 | adns__findlabel_start(&fls, pai->ads, | |
1091 | -1, pai->qu, | |
1092 | pai->dgram, pai->dglen, max, | |
1093 | *cbyte_io, cbyte_io); | |
1094 | st= adns__findlabel_next(&fls,&lablen,&labstart); | |
1095 | if (!lablen) { | |
b365d68a | 1096 | adns__vbuf_appendstr(vb,"."); |
eaa44731 | 1097 | goto x_ok; |
1098 | } | |
1099 | ||
1100 | neednorm= 1; | |
1101 | for (i=0, needquote=0, p= pai->dgram+labstart; i<lablen; i++) { | |
1102 | c= *p++; | |
1103 | if ((c&~128) < 32 || (c&~128) == 127) return adns_s_invaliddata; | |
1104 | if (c == '.' && !neednorm) neednorm= 1; | |
7672a872 | 1105 | else if (c==' ' || c>=127 || ctype_822special(c)) needquote++; |
eaa44731 | 1106 | else neednorm= 0; |
1107 | } | |
1108 | ||
1109 | if (needquote || neednorm) { | |
1110 | r= adns__vbuf_ensure(vb, lablen+needquote+4); if (!r) R_NOMEM; | |
1111 | adns__vbuf_appendq(vb,"\"",1); | |
1112 | for (i=0, needquote=0, p= pai->dgram+labstart; i<lablen; i++, p++) { | |
1113 | c= *p; | |
b365d68a | 1114 | if (c == '"' || c=='\\') adns__vbuf_appendq(vb,"\\",1); |
eaa44731 | 1115 | adns__vbuf_appendq(vb,p,1); |
1116 | } | |
1117 | adns__vbuf_appendq(vb,"\"",1); | |
1118 | } else { | |
1119 | r= adns__vbuf_append(vb, pai->dgram+labstart, lablen); if (!r) R_NOMEM; | |
1120 | } | |
1121 | ||
1122 | r= adns__vbuf_appendstr(vb,"@"); if (!r) R_NOMEM; | |
1123 | ||
1124 | st= adns__parse_domain_more(&fls,pai->ads, pai->qu,vb,0, pai->dgram); | |
1125 | if (st) return st; | |
1126 | ||
1127 | x_ok: | |
1128 | str= adns__alloc_interim(pai->qu, vb->used+1); if (!str) R_NOMEM; | |
1129 | memcpy(str,vb->buf,vb->used); | |
1130 | str[vb->used]= 0; | |
1131 | *mb_r= str; | |
1132 | return adns_s_ok; | |
9ec44266 | 1133 | } |
1134 | ||
9da4a044 | 1135 | static adns_status pap_mailbox(const parseinfo *pai, int *cbyte_io, int max, |
1136 | char **mb_r) { | |
2c6eb096 | 1137 | if (pai->qu->typei->typekey & adns__qtf_mail822) { |
9da4a044 | 1138 | return pap_mailbox822(pai, cbyte_io, max, mb_r); |
1139 | } else { | |
b365d68a | 1140 | return pap_domain(pai, cbyte_io, max, mb_r, pdf_quoteok); |
9da4a044 | 1141 | } |
1142 | } | |
1143 | ||
b365d68a | 1144 | static adns_status csp_mailbox(vbuf *vb, const char *mailbox) { |
1145 | return csp_domain(vb,mailbox); | |
1146 | } | |
1147 | ||
9ec44266 | 1148 | /* |
b365d68a | 1149 | * _rp (pa,cs) |
9ec44266 | 1150 | */ |
1151 | ||
609133ee | 1152 | static adns_status pa_rp(const parseinfo *pai, int cbyte, |
1153 | int max, void *datap) { | |
9ec44266 | 1154 | adns_rr_strpair *rrp= datap; |
1155 | adns_status st; | |
1156 | ||
1157 | st= pap_mailbox(pai, &cbyte, max, &rrp->array[0]); | |
1158 | if (st) return st; | |
1159 | ||
1160 | st= pap_domain(pai, &cbyte, max, &rrp->array[1], pdf_quoteok); | |
1161 | if (st) return st; | |
1162 | ||
1163 | if (cbyte != max) return adns_s_invaliddata; | |
1164 | return adns_s_ok; | |
1165 | } | |
1166 | ||
b365d68a | 1167 | static adns_status cs_rp(vbuf *vb, const void *datap) { |
1168 | const adns_rr_strpair *rrp= datap; | |
1169 | adns_status st; | |
1170 | ||
1171 | st= csp_mailbox(vb,rrp->array[0]); if (st) return st; | |
1172 | CSP_ADDSTR(" "); | |
1173 | st= csp_domain(vb,rrp->array[1]); if (st) return st; | |
1174 | ||
1175 | return adns_s_ok; | |
1176 | } | |
1177 | ||
9ec44266 | 1178 | /* |
1179 | * _soa (pa,mf,cs) | |
1180 | */ | |
1181 | ||
609133ee | 1182 | static adns_status pa_soa(const parseinfo *pai, int cbyte, |
1183 | int max, void *datap) { | |
9ec44266 | 1184 | adns_rr_soa *rrp= datap; |
1185 | const byte *dgram= pai->dgram; | |
1186 | adns_status st; | |
1187 | int msw, lsw, i; | |
1188 | ||
1189 | st= pap_domain(pai, &cbyte, max, &rrp->mname, | |
1190 | pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); | |
1191 | if (st) return st; | |
1192 | ||
1193 | st= pap_mailbox(pai, &cbyte, max, &rrp->rname); | |
1194 | if (st) return st; | |
1195 | ||
1196 | if (cbyte+20 != max) return adns_s_invaliddata; | |
1197 | ||
1198 | for (i=0; i<5; i++) { | |
1199 | GET_W(cbyte,msw); | |
1200 | GET_W(cbyte,lsw); | |
1201 | (&rrp->serial)[i]= (msw<<16) | lsw; | |
1202 | } | |
1203 | ||
1204 | return adns_s_ok; | |
1205 | } | |
1206 | ||
1207 | static void mf_soa(adns_query qu, void *datap) { | |
1208 | adns_rr_soa *rrp= datap; | |
1209 | ||
1210 | adns__makefinal_str(qu,&rrp->mname); | |
1211 | adns__makefinal_str(qu,&rrp->rname); | |
1212 | } | |
1213 | ||
1214 | static adns_status cs_soa(vbuf *vb, const void *datap) { | |
1215 | const adns_rr_soa *rrp= datap; | |
1216 | char buf[20]; | |
1217 | int i; | |
1218 | adns_status st; | |
1219 | ||
b365d68a | 1220 | st= csp_domain(vb,rrp->mname); if (st) return st; |
9ec44266 | 1221 | CSP_ADDSTR(" "); |
b365d68a | 1222 | st= csp_mailbox(vb,rrp->rname); if (st) return st; |
9ec44266 | 1223 | |
1224 | for (i=0; i<5; i++) { | |
1225 | sprintf(buf," %lu",(&rrp->serial)[i]); | |
1226 | CSP_ADDSTR(buf); | |
1227 | } | |
1228 | ||
1229 | return adns_s_ok; | |
1230 | } | |
1231 | ||
1232 | /* | |
e8e5aeac | 1233 | * _srv* (ckl,(pap),pa*2,mf*2,di,(csp),cs*2,postsort) |
d19b03d0 | 1234 | */ |
1235 | ||
e8e5aeac MW |
1236 | static adns_status ckl_srv(adns_state ads, adns_queryflags flags, |
1237 | union checklabel_state *cls, qcontext *ctx, | |
1238 | int labnum, const char *label, int lablen) { | |
1239 | if (labnum < 2 && !(flags & adns_qf_quoteok_query)) { | |
1240 | if (!lablen || label[0] != '_') return adns_s_querydomaininvalid; | |
1241 | return adns_s_ok; | |
d19b03d0 | 1242 | } |
e8e5aeac | 1243 | return adns__ckl_hostname(ads, flags, cls, ctx, labnum, label, lablen); |
d19b03d0 | 1244 | } |
1245 | ||
05fc6b3a | 1246 | static adns_status pap_srv_begin(const parseinfo *pai, int *cbyte_io, int max, |
0e45654b | 1247 | adns_rr_srvha *rrp |
1248 | /* might be adns_rr_srvraw* */) { | |
401c256a | 1249 | const byte *dgram= pai->dgram; |
05fc6b3a | 1250 | int ti, cbyte; |
1251 | ||
1252 | cbyte= *cbyte_io; | |
1253 | if ((*cbyte_io += 6) > max) return adns_s_invaliddata; | |
401c256a | 1254 | |
1255 | rrp->priority= GET_W(cbyte, ti); | |
1256 | rrp->weight= GET_W(cbyte, ti); | |
1257 | rrp->port= GET_W(cbyte, ti); | |
1258 | return adns_s_ok; | |
1259 | } | |
1260 | ||
1261 | static adns_status pa_srvraw(const parseinfo *pai, int cbyte, | |
1262 | int max, void *datap) { | |
1263 | adns_rr_srvraw *rrp= datap; | |
1264 | adns_status st; | |
1265 | ||
05fc6b3a | 1266 | st= pap_srv_begin(pai,&cbyte,max,datap); |
401c256a | 1267 | if (st) return st; |
1268 | ||
1269 | st= pap_domain(pai, &cbyte, max, &rrp->host, | |
1270 | pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); | |
1271 | if (st) return st; | |
1272 | ||
1273 | if (cbyte != max) return adns_s_invaliddata; | |
1274 | return adns_s_ok; | |
1275 | } | |
1276 | ||
1277 | static adns_status pa_srvha(const parseinfo *pai, int cbyte, | |
1278 | int max, void *datap) { | |
1279 | adns_rr_srvha *rrp= datap; | |
1280 | adns_status st; | |
1281 | ||
05fc6b3a | 1282 | st= pap_srv_begin(pai,&cbyte,max,datap); if (st) return st; |
401c256a | 1283 | st= pap_hostaddr(pai, &cbyte, max, &rrp->ha); if (st) return st; |
1284 | if (cbyte != max) return adns_s_invaliddata; | |
1285 | return adns_s_ok; | |
1286 | } | |
1287 | ||
1288 | static void mf_srvraw(adns_query qu, void *datap) { | |
1289 | adns_rr_srvraw *rrp= datap; | |
1290 | adns__makefinal_str(qu, &rrp->host); | |
1291 | } | |
1292 | ||
1293 | static void mf_srvha(adns_query qu, void *datap) { | |
1294 | adns_rr_srvha *rrp= datap; | |
1295 | mfp_hostaddr(qu,&rrp->ha); | |
1296 | } | |
1297 | ||
1298 | static int di_srv(adns_state ads, const void *datap_a, const void *datap_b) { | |
1299 | const adns_rr_srvraw *ap= datap_a, *bp= datap_b; | |
1300 | /* might be const adns_rr_svhostaddr* */ | |
1301 | ||
1302 | if (ap->priority < bp->priority) return 0; | |
1303 | if (ap->priority > bp->priority) return 1; | |
1304 | return 0; | |
1305 | } | |
1306 | ||
0e45654b | 1307 | static adns_status csp_srv_begin(vbuf *vb, const adns_rr_srvha *rrp |
1308 | /* might be adns_rr_srvraw* */) { | |
401c256a | 1309 | char buf[30]; |
1310 | sprintf(buf,"%u %u %u ", rrp->priority, rrp->weight, rrp->port); | |
1311 | CSP_ADDSTR(buf); | |
1312 | return adns_s_ok; | |
1313 | } | |
1314 | ||
1315 | static adns_status cs_srvraw(vbuf *vb, const void *datap) { | |
1316 | const adns_rr_srvraw *rrp= datap; | |
1317 | adns_status st; | |
1318 | ||
0e45654b | 1319 | st= csp_srv_begin(vb,(const void*)rrp); if (st) return st; |
401c256a | 1320 | return csp_domain(vb,rrp->host); |
1321 | } | |
1322 | ||
1323 | static adns_status cs_srvha(vbuf *vb, const void *datap) { | |
1324 | const adns_rr_srvha *rrp= datap; | |
1325 | adns_status st; | |
1326 | ||
0e45654b | 1327 | st= csp_srv_begin(vb,(const void*)datap); if (st) return st; |
401c256a | 1328 | return csp_hostaddr(vb,&rrp->ha); |
1329 | } | |
1330 | ||
042b0909 | 1331 | static void postsort_srv(adns_state ads, void *array, int nrrs,int rrsz, |
d24e2a7e | 1332 | const struct typeinfo *typei) { |
0e45654b | 1333 | /* we treat everything in the array as if it were an adns_rr_srvha |
1334 | * even though the array might be of adns_rr_srvraw. That's OK | |
1335 | * because they have the same prefix, which is all we access. | |
042b0909 | 1336 | * We use rrsz, too, rather than naive array indexing, of course. |
0e45654b | 1337 | */ |
1338 | char *workbegin, *workend, *search, *arrayend; | |
1339 | const adns_rr_srvha *rr; | |
1340 | union { adns_rr_srvha ha; adns_rr_srvraw raw; } rrtmp; | |
1341 | int cpriority, totalweight, runtotal; | |
1342 | long randval; | |
1343 | ||
042b0909 MW |
1344 | assert(rrsz <= sizeof(rrtmp)); |
1345 | for (workbegin= array, arrayend= workbegin + rrsz * nrrs; | |
0e45654b | 1346 | workbegin < arrayend; |
1347 | workbegin= workend) { | |
1348 | cpriority= (rr=(void*)workbegin)->priority; | |
1349 | ||
1350 | for (workend= workbegin, totalweight= 0; | |
1351 | workend < arrayend && (rr=(void*)workend)->priority == cpriority; | |
042b0909 | 1352 | workend += rrsz) { |
0e45654b | 1353 | totalweight += rr->weight; |
0e45654b | 1354 | } |
1355 | ||
1356 | /* Now workbegin..(workend-1) incl. are exactly all of the RRs of | |
1357 | * cpriority. From now on, workbegin points to the `remaining' | |
1358 | * records: we select one record at a time (RFC2782 `Usage rules' | |
1359 | * and `Format of the SRV RR' subsection `Weight') to place at | |
1360 | * workbegin (swapping with the one that was there, and then | |
1361 | * advance workbegin. */ | |
1362 | for (; | |
042b0909 MW |
1363 | workbegin + rrsz < workend; /* don't bother if just one */ |
1364 | workbegin += rrsz) { | |
0e45654b | 1365 | |
1366 | randval= nrand48(ads->rand48xsubi); | |
1367 | randval %= (totalweight + 1); | |
0e45654b | 1368 | /* makes it into 0..totalweight inclusive; with 2^10 RRs, |
1369 | * totalweight must be <= 2^26 so probability nonuniformity is | |
1370 | * no worse than 1 in 2^(31-26) ie 1 in 2^5, ie | |
1371 | * abs(log(P_intended(RR_i) / P_actual(RR_i)) <= log(2^-5). | |
1372 | */ | |
1373 | ||
1374 | for (search=workbegin, runtotal=0; | |
1375 | (runtotal += (rr=(void*)search)->weight) < randval; | |
042b0909 | 1376 | search += rrsz); |
0e45654b | 1377 | assert(search < arrayend); |
1378 | totalweight -= rr->weight; | |
1379 | if (search != workbegin) { | |
042b0909 MW |
1380 | memcpy(&rrtmp, workbegin, rrsz); |
1381 | memcpy(workbegin, search, rrsz); | |
1382 | memcpy(search, &rrtmp, rrsz); | |
0e45654b | 1383 | } |
1384 | } | |
1385 | } | |
d24e2a7e | 1386 | /* tests: |
1387 | * dig -t srv _srv._tcp.test.iwj.relativity.greenend.org.uk. | |
1388 | * ./adnshost_s -t srv- _sip._udp.voip.net.cam.ac.uk. | |
1389 | * ./adnshost_s -t srv- _jabber._tcp.jabber.org | |
1390 | */ | |
1391 | } | |
1392 | ||
d19b03d0 | 1393 | /* |
2c6eb096 | 1394 | * _byteblock (mf) |
1395 | */ | |
1396 | ||
1397 | static void mf_byteblock(adns_query qu, void *datap) { | |
1398 | adns_rr_byteblock *rrp= datap; | |
1399 | void *bytes= rrp->data; | |
1400 | adns__makefinal_block(qu,&bytes,rrp->len); | |
1401 | rrp->data= bytes; | |
1402 | } | |
1403 | ||
1404 | /* | |
1405 | * _opaque (pa,cs) | |
1406 | */ | |
1407 | ||
1408 | static adns_status pa_opaque(const parseinfo *pai, int cbyte, | |
1409 | int max, void *datap) { | |
1410 | adns_rr_byteblock *rrp= datap; | |
1411 | ||
1412 | rrp->len= max - cbyte; | |
1413 | rrp->data= adns__alloc_interim(pai->qu, rrp->len); | |
1414 | if (!rrp->data) R_NOMEM; | |
1415 | memcpy(rrp->data, pai->dgram + cbyte, rrp->len); | |
1416 | return adns_s_ok; | |
1417 | } | |
1418 | ||
1419 | static adns_status cs_opaque(vbuf *vb, const void *datap) { | |
1420 | const adns_rr_byteblock *rrp= datap; | |
1421 | char buf[10]; | |
1422 | int l; | |
1423 | unsigned char *p; | |
1424 | ||
1425 | sprintf(buf,"\\# %d",rrp->len); | |
1426 | CSP_ADDSTR(buf); | |
1427 | ||
1428 | for (l= rrp->len, p= rrp->data; | |
1429 | l>=4; | |
1430 | l -= 4, p += 4) { | |
1431 | sprintf(buf," %02x%02x%02x%02x",p[0],p[1],p[2],p[3]); | |
1432 | CSP_ADDSTR(buf); | |
1433 | } | |
1434 | for (; | |
1435 | l>0; | |
1436 | l--, p++) { | |
1437 | sprintf(buf," %02x",*p); | |
1438 | CSP_ADDSTR(buf); | |
1439 | } | |
1440 | return adns_s_ok; | |
1441 | } | |
1442 | ||
1443 | /* | |
eb81d633 | 1444 | * _flat (mf) |
1445 | */ | |
1446 | ||
ffbda80c | 1447 | static void mf_flat(adns_query qu, void *data) { } |
1448 | ||
eb81d633 | 1449 | /* |
1450 | * Now the table. | |
1451 | */ | |
1452 | ||
e062dcae | 1453 | #define TYPESZ_M(member) (sizeof(*((adns_answer*)0)->rrs.member)) |
86e7b8d9 | 1454 | |
c5fd1fbb | 1455 | #define DEEP_TYPE(code,rrt,fmt,memb,parser,comparer,/*printer*/...) \ |
d24b603f | 1456 | { adns_r_##code&adns_rrt_reprmask, rrt,fmt,TYPESZ_M(memb), mf_##memb, \ |
c5fd1fbb | 1457 | GLUE(cs_, CAR(__VA_ARGS__)),pa_##parser,di_##comparer, \ |
a586770a MW |
1458 | adns__ckl_hostname, 0, adns__getrrsz_default, adns__query_send, \ |
1459 | CDR(__VA_ARGS__) } | |
c5fd1fbb | 1460 | #define FLAT_TYPE(code,rrt,fmt,memb,parser,comparer,/*printer*/...) \ |
d24b603f | 1461 | { adns_r_##code&adns_rrt_reprmask, rrt,fmt,TYPESZ_M(memb), mf_flat, \ |
c5fd1fbb | 1462 | GLUE(cs_, CAR(__VA_ARGS__)),pa_##parser,di_##comparer, \ |
a586770a MW |
1463 | adns__ckl_hostname, 0, adns__getrrsz_default, adns__query_send, \ |
1464 | CDR(__VA_ARGS__) } | |
c5fd1fbb MW |
1465 | |
1466 | #define di_0 0 | |
98a3f706 | 1467 | |
1468 | static const typeinfo typeinfos[] = { | |
eb81d633 | 1469 | /* Must be in ascending order of rrtype ! */ |
609133ee | 1470 | /* mem-mgmt code rrt fmt member parser comparer printer */ |
1471 | ||
c5fd1fbb MW |
1472 | FLAT_TYPE(a, "A", 0, inaddr, inaddr, inaddr,inaddr ), |
1473 | DEEP_TYPE(ns_raw, "NS", "raw",str, host_raw,0, domain ), | |
1474 | DEEP_TYPE(cname, "CNAME", 0, str, dom_raw, 0, domain ), | |
1475 | DEEP_TYPE(soa_raw,"SOA", "raw",soa, soa, 0, soa ), | |
1476 | DEEP_TYPE(ptr_raw,"PTR", "raw",str, host_raw,0, domain ), | |
1477 | DEEP_TYPE(hinfo, "HINFO", 0, intstrpair,hinfo, 0, hinfo ), | |
1478 | DEEP_TYPE(mx_raw, "MX", "raw",intstr, mx_raw, mx_raw,inthost ), | |
1479 | DEEP_TYPE(txt, "TXT", 0, manyistr, txt, 0, txt ), | |
1480 | DEEP_TYPE(rp_raw, "RP", "raw",strpair, rp, 0, rp ), | |
eeee7503 | 1481 | FLAT_TYPE(aaaa, "AAAA", 0, in6addr, in6addr, in6addr,in6addr ), |
c5fd1fbb | 1482 | DEEP_TYPE(srv_raw,"SRV", "raw",srvraw , srvraw, srv, srvraw, |
e8e5aeac | 1483 | .checklabel= ckl_srv, .postsort= postsort_srv), |
c5fd1fbb | 1484 | |
b0a32b17 | 1485 | FLAT_TYPE(addr, "A", "addr", addr, addr, addr, addr, |
92c8ebba | 1486 | .getrrsz= gsz_addr, .query_send= qs_addr), |
c5fd1fbb | 1487 | DEEP_TYPE(ns, "NS", "+addr",hostaddr, hostaddr,hostaddr,hostaddr ), |
938b0228 MW |
1488 | DEEP_TYPE(ptr, "PTR","checked",str, ptr, 0, domain, |
1489 | .checklabel= ckl_ptr), | |
c5fd1fbb MW |
1490 | DEEP_TYPE(mx, "MX", "+addr",inthostaddr,mx, mx, inthostaddr, ), |
1491 | DEEP_TYPE(srv, "SRV","+addr",srvha, srvha, srv, srvha, | |
e8e5aeac | 1492 | .checklabel= ckl_srv, .postsort= postsort_srv), |
c5fd1fbb MW |
1493 | |
1494 | DEEP_TYPE(soa, "SOA","822", soa, soa, 0, soa ), | |
1495 | DEEP_TYPE(rp, "RP", "822", strpair, rp, 0, rp ), | |
98a3f706 | 1496 | }; |
1497 | ||
92c8ebba MW |
1498 | static const typeinfo tinfo_addrsub = |
1499 | FLAT_TYPE(none, "<addr>","sub",addr, addr, 0, addr, | |
1500 | .getrrsz= gsz_addr); | |
1501 | ||
2c6eb096 | 1502 | static const typeinfo typeinfo_unknown= |
c5fd1fbb | 1503 | DEEP_TYPE(unknown,0, "unknown",byteblock,opaque, 0, opaque ); |
2c6eb096 | 1504 | |
f759e52e | 1505 | const typeinfo *adns__findtype(adns_rrtype type) { |
1506 | const typeinfo *begin, *end, *mid; | |
98a3f706 | 1507 | |
2c6eb096 | 1508 | if (type & adns_r_unknown) return &typeinfo_unknown; |
d24b603f | 1509 | type &= adns_rrt_reprmask; |
2c6eb096 | 1510 | |
98a3f706 | 1511 | begin= typeinfos; end= typeinfos+(sizeof(typeinfos)/sizeof(typeinfo)); |
1512 | ||
1513 | while (begin < end) { | |
1514 | mid= begin + ((end-begin)>>1); | |
2c6eb096 | 1515 | if (mid->typekey == type) return mid; |
1516 | if (type > mid->typekey) begin= mid+1; | |
98a3f706 | 1517 | else end= mid; |
1518 | } | |
1519 | return 0; | |
1520 | } |