e576be50 |
1 | /* |
2 | * types.c |
3 | * - RR-type-specific code, and the machinery to call it |
4 | */ |
5 | /* |
d942707d |
6 | * This file is |
7 | * Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk> |
8 | * |
9 | * It is part of adns, which is |
3d5cde09 |
10 | * Copyright (C) 1997-2000 Ian Jackson <ian@davenant.greenend.org.uk> |
bef232ae |
11 | * Copyright (C) 1999-2000 Tony Finch <dot@dotat.at> |
e576be50 |
12 | * |
13 | * This program is free software; you can redistribute it and/or modify |
14 | * it under the terms of the GNU General Public License as published by |
15 | * the Free Software Foundation; either version 2, or (at your option) |
16 | * any later version. |
17 | * |
18 | * This program is distributed in the hope that it will be useful, |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
21 | * GNU General Public License for more details. |
22 | * |
23 | * You should have received a copy of the GNU General Public License |
24 | * along with this program; if not, write to the Free Software Foundation, |
25 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
26 | */ |
98a3f706 |
27 | |
1b644113 |
28 | #include <stdlib.h> |
29 | |
0f091044 |
30 | #include <sys/types.h> |
71a6ff46 |
31 | #include <sys/socket.h> |
32 | #include <netinet/in.h> |
86e7b8d9 |
33 | #include <arpa/inet.h> |
34 | |
98a3f706 |
35 | #include "internal.h" |
36 | |
609133ee |
37 | #define R_NOMEM return adns_s_nomemory |
38 | #define CSP_ADDSTR(s) do { \ |
39 | if (!adns__vbuf_appendstr(vb,(s))) R_NOMEM; \ |
40 | } while (0) |
1dfe95d8 |
41 | |
eb81d633 |
42 | /* |
43 | * order of sections: |
44 | * |
9ec44266 |
45 | * _string (pap) |
eb81d633 |
46 | * _textdata, _qstring (csp) |
47 | * _str (mf,cs) |
9ec44266 |
48 | * _intstr (mf,csp,cs) |
eb81d633 |
49 | * _manyistr (mf,cs) |
50 | * _txt (pa) |
51 | * _inaddr (pa,dip,di) |
52 | * _addr (pa,di,csp,cs) |
53 | * _domain (pap) |
54 | * _host_raw (pa) |
55 | * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +pap_findaddrs) |
56 | * _mx_raw (pa,di) |
57 | * _mx (pa,di) |
58 | * _inthostaddr (mf,cs) |
a6536d8b |
59 | * _ptr (pa) |
9ec44266 |
60 | * _strpair (mf,cs) |
61 | * _intstrpair (mf,cs) |
62 | * _hinfo (pa) |
9da4a044 |
63 | * _mailbox (pap +pap_mailbox822) |
9ec44266 |
64 | * _rp (pa) |
65 | * _soa (pa,mf,cs) |
a889f4be |
66 | * _srv* (qdpl,(pap),pa,mf,di,(csp),cs) |
eb81d633 |
67 | * _flat (mf) |
68 | * |
69 | * within each section: |
401c256a |
70 | * qdpl_* |
eb81d633 |
71 | * pap_* |
72 | * pa_* |
73 | * dip_* |
74 | * di_* |
75 | * mfp_* |
76 | * mf_* |
77 | * csp_* |
78 | * cs_* |
79 | */ |
80 | |
81 | /* |
b365d68a |
82 | * _qstring (pap,csp) |
eb81d633 |
83 | */ |
84 | |
b365d68a |
85 | static adns_status pap_qstring(const parseinfo *pai, int *cbyte_io, int max, |
9ec44266 |
86 | int *len_r, char **str_r) { |
87 | /* Neither len_r nor str_r may be null. |
88 | * End of datagram (overrun) is indicated by returning adns_s_invaliddata; |
89 | */ |
90 | const byte *dgram= pai->dgram; |
91 | int l, cbyte; |
92 | char *str; |
93 | |
94 | cbyte= *cbyte_io; |
95 | |
96 | if (cbyte >= max) return adns_s_invaliddata; |
97 | GET_B(cbyte,l); |
98 | if (cbyte+l > max) return adns_s_invaliddata; |
99 | |
100 | str= adns__alloc_interim(pai->qu, l+1); |
101 | if (!str) R_NOMEM; |
102 | |
103 | str[l]= 0; |
104 | memcpy(str,dgram+cbyte,l); |
105 | |
106 | *len_r= l; |
107 | *str_r= str; |
108 | *cbyte_io= cbyte+l; |
109 | |
110 | return adns_s_ok; |
111 | } |
112 | |
b365d68a |
113 | static adns_status csp_qstring(vbuf *vb, const char *dp, int len) { |
eb81d633 |
114 | unsigned char ch; |
115 | char buf[10]; |
116 | int cn; |
117 | |
118 | CSP_ADDSTR("\""); |
119 | for (cn=0; cn<len; cn++) { |
120 | ch= *dp++; |
b365d68a |
121 | if (ch == '\\') { |
9ec44266 |
122 | CSP_ADDSTR("\\\\"); |
b365d68a |
123 | } else if (ch == '"') { |
124 | CSP_ADDSTR("\\\""); |
125 | } else if (ch >= 32 && ch <= 126) { |
126 | if (!adns__vbuf_append(vb,&ch,1)) R_NOMEM; |
eb81d633 |
127 | } else { |
9ec44266 |
128 | sprintf(buf,"\\x%02x",ch); |
eb81d633 |
129 | CSP_ADDSTR(buf); |
130 | } |
131 | } |
132 | CSP_ADDSTR("\""); |
133 | |
134 | return adns_s_ok; |
135 | } |
136 | |
eb81d633 |
137 | /* |
b365d68a |
138 | * _str (mf) |
eb81d633 |
139 | */ |
140 | |
141 | static void mf_str(adns_query qu, void *datap) { |
142 | char **rrp= datap; |
143 | |
144 | adns__makefinal_str(qu,rrp); |
145 | } |
146 | |
eb81d633 |
147 | /* |
b365d68a |
148 | * _intstr (mf) |
eb81d633 |
149 | */ |
150 | |
151 | static void mf_intstr(adns_query qu, void *datap) { |
152 | adns_rr_intstr *rrp= datap; |
153 | |
154 | adns__makefinal_str(qu,&rrp->str); |
155 | } |
156 | |
eb81d633 |
157 | /* |
b365d68a |
158 | * _manyistr (mf) |
eb81d633 |
159 | */ |
160 | |
161 | static void mf_manyistr(adns_query qu, void *datap) { |
162 | adns_rr_intstr **rrp= datap; |
163 | adns_rr_intstr *te, *table; |
164 | void *tablev; |
165 | int tc; |
166 | |
167 | for (tc=0, te= *rrp; te->i >= 0; te++, tc++); |
168 | tablev= *rrp; |
169 | adns__makefinal_block(qu,&tablev,sizeof(*te)*(tc+1)); |
170 | *rrp= table= tablev; |
171 | for (te= *rrp; te->i >= 0; te++) |
172 | adns__makefinal_str(qu,&te->str); |
173 | } |
174 | |
eb81d633 |
175 | /* |
b365d68a |
176 | * _txt (pa,cs) |
eb81d633 |
177 | */ |
178 | |
609133ee |
179 | static adns_status pa_txt(const parseinfo *pai, int cbyte, |
180 | int max, void *datap) { |
eb81d633 |
181 | adns_rr_intstr **rrp= datap, *table, *te; |
182 | const byte *dgram= pai->dgram; |
183 | int ti, tc, l, startbyte; |
9ec44266 |
184 | adns_status st; |
eb81d633 |
185 | |
186 | startbyte= cbyte; |
187 | if (cbyte >= max) return adns_s_invaliddata; |
188 | tc= 0; |
189 | while (cbyte < max) { |
190 | GET_B(cbyte,l); |
191 | cbyte+= l; |
9ec44266 |
192 | tc++; |
eb81d633 |
193 | } |
b365d68a |
194 | if (cbyte != max || !tc) return adns_s_invaliddata; |
eb81d633 |
195 | |
196 | table= adns__alloc_interim(pai->qu,sizeof(*table)*(tc+1)); |
197 | if (!table) R_NOMEM; |
198 | |
199 | for (cbyte=startbyte, ti=0, te=table; ti<tc; ti++, te++) { |
b365d68a |
200 | st= pap_qstring(pai, &cbyte, max, &te->i, &te->str); |
9ec44266 |
201 | if (st) return st; |
eb81d633 |
202 | } |
203 | assert(cbyte == max); |
204 | |
205 | te->i= -1; |
206 | te->str= 0; |
207 | |
208 | *rrp= table; |
209 | return adns_s_ok; |
828d89bd |
210 | } |
211 | |
b365d68a |
212 | static adns_status cs_txt(vbuf *vb, const void *datap) { |
213 | const adns_rr_intstr *const *rrp= datap; |
214 | const adns_rr_intstr *current; |
215 | adns_status st; |
216 | int spc; |
217 | |
218 | for (current= *rrp, spc=0; current->i >= 0; current++, spc=1) { |
219 | if (spc) CSP_ADDSTR(" "); |
220 | st= csp_qstring(vb,current->str,current->i); if (st) return st; |
221 | } |
222 | return adns_s_ok; |
223 | } |
224 | |
225 | /* |
226 | * _hinfo (cs) |
227 | */ |
228 | |
229 | static adns_status cs_hinfo(vbuf *vb, const void *datap) { |
230 | const adns_rr_intstrpair *rrp= datap; |
231 | adns_status st; |
232 | |
233 | st= csp_qstring(vb,rrp->array[0].str,rrp->array[0].i); if (st) return st; |
234 | CSP_ADDSTR(" "); |
235 | st= csp_qstring(vb,rrp->array[1].str,rrp->array[1].i); if (st) return st; |
236 | return adns_s_ok; |
237 | } |
238 | |
eb81d633 |
239 | /* |
240 | * _inaddr (pa,dip,di) |
241 | */ |
242 | |
609133ee |
243 | static adns_status pa_inaddr(const parseinfo *pai, int cbyte, |
244 | int max, void *datap) { |
e062dcae |
245 | struct in_addr *storeto= datap; |
e7a9ca47 |
246 | |
247 | if (max-cbyte != 4) return adns_s_invaliddata; |
1dfe95d8 |
248 | memcpy(storeto, pai->dgram + cbyte, 4); |
e7a9ca47 |
249 | return adns_s_ok; |
250 | } |
251 | |
09957b1c |
252 | static int search_sortlist(adns_state ads, struct in_addr ad) { |
253 | const struct sortlist *slp; |
254 | int i; |
255 | |
256 | for (i=0, slp=ads->sortlist; |
609133ee |
257 | i<ads->nsortlist && |
258 | !((ad.s_addr & slp->mask.s_addr) == slp->base.s_addr); |
09957b1c |
259 | i++, slp++); |
260 | return i; |
eb81d633 |
261 | } |
262 | |
09957b1c |
263 | static int dip_inaddr(adns_state ads, struct in_addr a, struct in_addr b) { |
264 | int ai, bi; |
265 | |
266 | if (!ads->nsortlist) return 0; |
267 | |
268 | ai= search_sortlist(ads,a); |
269 | bi= search_sortlist(ads,b); |
270 | return bi<ai; |
271 | } |
272 | |
609133ee |
273 | static int di_inaddr(adns_state ads, |
274 | const void *datap_a, const void *datap_b) { |
e062dcae |
275 | const struct in_addr *ap= datap_a, *bp= datap_b; |
276 | |
09957b1c |
277 | return dip_inaddr(ads,*ap,*bp); |
e062dcae |
278 | } |
279 | |
280 | static adns_status cs_inaddr(vbuf *vb, const void *datap) { |
281 | const struct in_addr *rrp= datap, rr= *rrp; |
86e7b8d9 |
282 | const char *ia; |
283 | |
e062dcae |
284 | ia= inet_ntoa(rr); assert(ia); |
1dfe95d8 |
285 | CSP_ADDSTR(ia); |
286 | return adns_s_ok; |
86e7b8d9 |
287 | } |
e7a9ca47 |
288 | |
eb81d633 |
289 | /* |
290 | * _addr (pa,di,csp,cs) |
291 | */ |
292 | |
609133ee |
293 | static adns_status pa_addr(const parseinfo *pai, int cbyte, |
294 | int max, void *datap) { |
551ff40f |
295 | adns_rr_addr *storeto= datap; |
1dfe95d8 |
296 | const byte *dgram= pai->dgram; |
c7836bc9 |
297 | |
828d89bd |
298 | if (max-cbyte != 4) return adns_s_invaliddata; |
299 | storeto->len= sizeof(storeto->addr.inet); |
300 | memset(&storeto->addr,0,sizeof(storeto->addr.inet)); |
301 | storeto->addr.inet.sin_family= AF_INET; |
828d89bd |
302 | memcpy(&storeto->addr.inet.sin_addr,dgram+cbyte,4); |
303 | return adns_s_ok; |
304 | } |
305 | |
09957b1c |
306 | static int di_addr(adns_state ads, const void *datap_a, const void *datap_b) { |
551ff40f |
307 | const adns_rr_addr *ap= datap_a, *bp= datap_b; |
828d89bd |
308 | |
1dfe95d8 |
309 | assert(ap->addr.sa.sa_family == AF_INET); |
09957b1c |
310 | return dip_inaddr(ads, ap->addr.inet.sin_addr, bp->addr.inet.sin_addr); |
828d89bd |
311 | } |
312 | |
09957b1c |
313 | static int div_addr(void *context, const void *datap_a, const void *datap_b) { |
314 | const adns_state ads= context; |
315 | |
316 | return di_addr(ads, datap_a, datap_b); |
317 | } |
318 | |
551ff40f |
319 | static adns_status csp_addr(vbuf *vb, const adns_rr_addr *rrp) { |
828d89bd |
320 | const char *ia; |
321 | static char buf[30]; |
322 | |
323 | switch (rrp->addr.inet.sin_family) { |
324 | case AF_INET: |
b365d68a |
325 | CSP_ADDSTR("INET "); |
828d89bd |
326 | ia= inet_ntoa(rrp->addr.inet.sin_addr); assert(ia); |
1dfe95d8 |
327 | CSP_ADDSTR(ia); |
828d89bd |
328 | break; |
329 | default: |
330 | sprintf(buf,"AF=%u",rrp->addr.sa.sa_family); |
1dfe95d8 |
331 | CSP_ADDSTR(buf); |
828d89bd |
332 | break; |
333 | } |
334 | return adns_s_ok; |
335 | } |
336 | |
1dfe95d8 |
337 | static adns_status cs_addr(vbuf *vb, const void *datap) { |
551ff40f |
338 | const adns_rr_addr *rrp= datap; |
1dfe95d8 |
339 | |
340 | return csp_addr(vb,rrp); |
341 | } |
342 | |
eb81d633 |
343 | /* |
b365d68a |
344 | * _domain (pap,csp,cs) |
345 | * _dom_raw (pa) |
eb81d633 |
346 | */ |
347 | |
1dfe95d8 |
348 | static adns_status pap_domain(const parseinfo *pai, int *cbyte_io, int max, |
349 | char **domain_r, parsedomain_flags flags) { |
e062dcae |
350 | adns_status st; |
351 | char *dm; |
352 | |
1dfe95d8 |
353 | st= adns__parse_domain(pai->qu->ads, pai->serv, pai->qu, &pai->qu->vb, flags, |
354 | pai->dgram,pai->dglen, cbyte_io, max); |
e062dcae |
355 | if (st) return st; |
1dfe95d8 |
356 | if (!pai->qu->vb.used) return adns_s_invaliddata; |
e062dcae |
357 | |
1dfe95d8 |
358 | dm= adns__alloc_interim(pai->qu, pai->qu->vb.used+1); |
359 | if (!dm) R_NOMEM; |
e062dcae |
360 | |
1dfe95d8 |
361 | dm[pai->qu->vb.used]= 0; |
362 | memcpy(dm,pai->qu->vb.buf,pai->qu->vb.used); |
e062dcae |
363 | |
364 | *domain_r= dm; |
365 | return adns_s_ok; |
366 | } |
367 | |
b365d68a |
368 | static adns_status csp_domain(vbuf *vb, const char *domain) { |
369 | CSP_ADDSTR(domain); |
370 | if (!*domain) CSP_ADDSTR("."); |
371 | return adns_s_ok; |
372 | } |
373 | |
374 | static adns_status cs_domain(vbuf *vb, const void *datap) { |
375 | const char *const *domainp= datap; |
376 | return csp_domain(vb,*domainp); |
377 | } |
378 | |
609133ee |
379 | static adns_status pa_dom_raw(const parseinfo *pai, int cbyte, |
380 | int max, void *datap) { |
b365d68a |
381 | char **rrp= datap; |
382 | adns_status st; |
383 | |
384 | st= pap_domain(pai, &cbyte, max, rrp, pdf_quoteok); |
385 | if (st) return st; |
386 | |
387 | if (cbyte != max) return adns_s_invaliddata; |
388 | return adns_s_ok; |
389 | } |
390 | |
eb81d633 |
391 | /* |
392 | * _host_raw (pa) |
393 | */ |
394 | |
609133ee |
395 | static adns_status pa_host_raw(const parseinfo *pai, int cbyte, |
396 | int max, void *datap) { |
e062dcae |
397 | char **rrp= datap; |
ffbda80c |
398 | adns_status st; |
86e7b8d9 |
399 | |
1dfe95d8 |
400 | st= pap_domain(pai, &cbyte, max, rrp, |
401 | pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); |
e062dcae |
402 | if (st) return st; |
403 | |
404 | if (cbyte != max) return adns_s_invaliddata; |
405 | return adns_s_ok; |
406 | } |
ffbda80c |
407 | |
eb81d633 |
408 | /* |
551ff40f |
409 | * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +icb_hostaddr, pap_findaddrs) |
eb81d633 |
410 | */ |
c7836bc9 |
411 | |
1dfe95d8 |
412 | static adns_status pap_findaddrs(const parseinfo *pai, adns_rr_hostaddr *ha, |
413 | int *cbyte_io, int count, int dmstart) { |
414 | int rri, naddrs; |
c7836bc9 |
415 | int type, class, rdlen, rdstart, ownermatched; |
73dba56e |
416 | unsigned long ttl; |
1dfe95d8 |
417 | adns_status st; |
c7836bc9 |
418 | |
1dfe95d8 |
419 | for (rri=0, naddrs=-1; rri<count; rri++) { |
609133ee |
420 | st= adns__findrr_anychk(pai->qu, pai->serv, pai->dgram, |
421 | pai->dglen, cbyte_io, |
73dba56e |
422 | &type, &class, &ttl, &rdlen, &rdstart, |
1dfe95d8 |
423 | pai->dgram, pai->dglen, dmstart, &ownermatched); |
c7836bc9 |
424 | if (st) return st; |
1dfe95d8 |
425 | if (!ownermatched || class != DNS_CLASS_IN || type != adns_r_a) { |
426 | if (naddrs>0) break; else continue; |
427 | } |
428 | if (naddrs == -1) { |
429 | naddrs= 0; |
c7836bc9 |
430 | } |
609133ee |
431 | if (!adns__vbuf_ensure(&pai->qu->vb, (naddrs+1)*sizeof(adns_rr_addr))) |
432 | R_NOMEM; |
73dba56e |
433 | adns__update_expires(pai->qu,ttl,pai->now); |
551ff40f |
434 | st= pa_addr(pai, rdstart,rdstart+rdlen, |
435 | pai->qu->vb.buf + naddrs*sizeof(adns_rr_addr)); |
c7836bc9 |
436 | if (st) return st; |
1dfe95d8 |
437 | naddrs++; |
c7836bc9 |
438 | } |
1dfe95d8 |
439 | if (naddrs >= 0) { |
551ff40f |
440 | ha->addrs= adns__alloc_interim(pai->qu, naddrs*sizeof(adns_rr_addr)); |
1dfe95d8 |
441 | if (!ha->addrs) R_NOMEM; |
551ff40f |
442 | memcpy(ha->addrs, pai->qu->vb.buf, naddrs*sizeof(adns_rr_addr)); |
1dfe95d8 |
443 | ha->naddrs= naddrs; |
c7836bc9 |
444 | ha->astatus= adns_s_ok; |
1dfe95d8 |
445 | |
09957b1c |
446 | adns__isort(ha->addrs, naddrs, sizeof(adns_rr_addr), pai->qu->vb.buf, |
447 | div_addr, pai->ads); |
c7836bc9 |
448 | } |
449 | return adns_s_ok; |
450 | } |
451 | |
551ff40f |
452 | static void icb_hostaddr(adns_query parent, adns_query child) { |
551ff40f |
453 | adns_answer *cans= child->answer; |
a6536d8b |
454 | adns_rr_hostaddr *rrp= child->ctx.info.hostaddr; |
4218fb9a |
455 | adns_state ads= parent->ads; |
b365d68a |
456 | adns_status st; |
551ff40f |
457 | |
b365d68a |
458 | st= cans->status; |
459 | rrp->astatus= st; |
460 | rrp->naddrs= (st>0 && st<=adns_s_max_tempfail) ? -1 : cans->nrrs; |
551ff40f |
461 | rrp->addrs= cans->rrs.addr; |
609133ee |
462 | adns__transfer_interim(child, parent, rrp->addrs, |
463 | rrp->naddrs*sizeof(adns_rr_addr)); |
a6536d8b |
464 | |
4218fb9a |
465 | if (parent->children.head) { |
466 | LIST_LINK_TAIL(ads->childw,parent); |
467 | } else { |
468 | adns__query_done(parent); |
469 | } |
551ff40f |
470 | } |
471 | |
1dfe95d8 |
472 | static adns_status pap_hostaddr(const parseinfo *pai, int *cbyte_io, |
473 | int max, adns_rr_hostaddr *rrp) { |
c7836bc9 |
474 | adns_status st; |
475 | int dmstart, cbyte; |
7da21070 |
476 | qcontext ctx; |
477 | int id; |
478 | adns_query nqu; |
4b707d8b |
479 | adns_queryflags nflags; |
c7836bc9 |
480 | |
481 | dmstart= cbyte= *cbyte_io; |
1dfe95d8 |
482 | st= pap_domain(pai, &cbyte, max, &rrp->host, |
483 | pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); |
c7836bc9 |
484 | if (st) return st; |
485 | *cbyte_io= cbyte; |
486 | |
487 | rrp->astatus= adns_s_ok; |
488 | rrp->naddrs= -1; |
489 | rrp->addrs= 0; |
490 | |
1dfe95d8 |
491 | cbyte= pai->nsstart; |
c7836bc9 |
492 | |
1dfe95d8 |
493 | st= pap_findaddrs(pai, rrp, &cbyte, pai->nscount, dmstart); |
c7836bc9 |
494 | if (st) return st; |
495 | if (rrp->naddrs != -1) return adns_s_ok; |
496 | |
1dfe95d8 |
497 | st= pap_findaddrs(pai, rrp, &cbyte, pai->arcount, dmstart); |
c7836bc9 |
498 | if (st) return st; |
499 | if (rrp->naddrs != -1) return adns_s_ok; |
1dfe95d8 |
500 | |
7da21070 |
501 | st= adns__mkquery_frdgram(pai->ads, &pai->qu->vb, &id, |
502 | pai->dgram, pai->dglen, dmstart, |
503 | adns_r_addr, adns_qf_quoteok_query); |
504 | if (st) return st; |
551ff40f |
505 | |
a6536d8b |
506 | ctx.ext= 0; |
507 | ctx.callback= icb_hostaddr; |
508 | ctx.info.hostaddr= rrp; |
4b707d8b |
509 | |
510 | nflags= adns_qf_quoteok_query; |
511 | if (!(pai->qu->flags & adns_qf_cname_loose)) nflags |= adns_qf_cname_forbid; |
512 | |
7da21070 |
513 | st= adns__internal_submit(pai->ads, &nqu, adns__findtype(adns_r_addr), |
660d7d3b |
514 | &pai->qu->vb, id, nflags, pai->now, &ctx); |
7da21070 |
515 | if (st) return st; |
516 | |
517 | nqu->parent= pai->qu; |
518 | LIST_LINK_TAIL_PART(pai->qu->children,nqu,siblings.); |
1dfe95d8 |
519 | |
520 | return adns_s_ok; |
c7836bc9 |
521 | } |
522 | |
609133ee |
523 | static adns_status pa_hostaddr(const parseinfo *pai, int cbyte, |
524 | int max, void *datap) { |
1dfe95d8 |
525 | adns_rr_hostaddr *rrp= datap; |
c7836bc9 |
526 | adns_status st; |
c7836bc9 |
527 | |
1dfe95d8 |
528 | st= pap_hostaddr(pai, &cbyte, max, rrp); |
c7836bc9 |
529 | if (st) return st; |
530 | if (cbyte != max) return adns_s_invaliddata; |
531 | |
1dfe95d8 |
532 | return adns_s_ok; |
533 | } |
c7836bc9 |
534 | |
609133ee |
535 | static int dip_hostaddr(adns_state ads, |
536 | const adns_rr_hostaddr *ap, const adns_rr_hostaddr *bp) { |
1dfe95d8 |
537 | if (ap->astatus != bp->astatus) return ap->astatus; |
538 | if (ap->astatus) return 0; |
c7836bc9 |
539 | |
1dfe95d8 |
540 | assert(ap->addrs[0].addr.sa.sa_family == AF_INET); |
541 | assert(bp->addrs[0].addr.sa.sa_family == AF_INET); |
09957b1c |
542 | return dip_inaddr(ads, |
543 | ap->addrs[0].addr.inet.sin_addr, |
544 | bp->addrs[0].addr.inet.sin_addr); |
1dfe95d8 |
545 | } |
546 | |
609133ee |
547 | static int di_hostaddr(adns_state ads, |
548 | const void *datap_a, const void *datap_b) { |
1dfe95d8 |
549 | const adns_rr_hostaddr *ap= datap_a, *bp= datap_b; |
550 | |
09957b1c |
551 | return dip_hostaddr(ads, ap,bp); |
c7836bc9 |
552 | } |
553 | |
eb81d633 |
554 | static void mfp_hostaddr(adns_query qu, adns_rr_hostaddr *rrp) { |
555 | void *tablev; |
e062dcae |
556 | |
eb81d633 |
557 | adns__makefinal_str(qu,&rrp->host); |
558 | tablev= rrp->addrs; |
559 | adns__makefinal_block(qu, &tablev, rrp->naddrs*sizeof(*rrp->addrs)); |
560 | rrp->addrs= tablev; |
e062dcae |
561 | } |
562 | |
eb81d633 |
563 | static void mf_hostaddr(adns_query qu, void *datap) { |
564 | adns_rr_hostaddr *rrp= datap; |
e062dcae |
565 | |
eb81d633 |
566 | mfp_hostaddr(qu,rrp); |
e062dcae |
567 | } |
568 | |
1dfe95d8 |
569 | static adns_status csp_hostaddr(vbuf *vb, const adns_rr_hostaddr *rrp) { |
a6f1dc92 |
570 | const char *errstr; |
1dfe95d8 |
571 | adns_status st; |
ac77ffc1 |
572 | char buf[20]; |
1dfe95d8 |
573 | int i; |
574 | |
a6f1dc92 |
575 | st= csp_domain(vb,rrp->host); if (st) return st; |
1dfe95d8 |
576 | |
b365d68a |
577 | CSP_ADDSTR(" "); |
ac77ffc1 |
578 | CSP_ADDSTR(adns_errtypeabbrev(rrp->astatus)); |
579 | |
580 | sprintf(buf," %d ",rrp->astatus); |
581 | CSP_ADDSTR(buf); |
a6f1dc92 |
582 | |
ac77ffc1 |
583 | CSP_ADDSTR(adns_errabbrev(rrp->astatus)); |
a6f1dc92 |
584 | CSP_ADDSTR(" "); |
ac77ffc1 |
585 | |
a6f1dc92 |
586 | errstr= adns_strerror(rrp->astatus); |
587 | st= csp_qstring(vb,errstr,strlen(errstr)); if (st) return st; |
b365d68a |
588 | |
589 | if (rrp->naddrs >= 0) { |
590 | CSP_ADDSTR(" ("); |
591 | for (i=0; i<rrp->naddrs; i++) { |
592 | CSP_ADDSTR(" "); |
1dfe95d8 |
593 | st= csp_addr(vb,&rrp->addrs[i]); |
594 | } |
b365d68a |
595 | CSP_ADDSTR(" )"); |
596 | } else { |
597 | CSP_ADDSTR(" ?"); |
1dfe95d8 |
598 | } |
599 | return adns_s_ok; |
600 | } |
601 | |
602 | static adns_status cs_hostaddr(vbuf *vb, const void *datap) { |
603 | const adns_rr_hostaddr *rrp= datap; |
604 | |
605 | return csp_hostaddr(vb,rrp); |
606 | } |
607 | |
eb81d633 |
608 | /* |
609 | * _mx_raw (pa,di) |
610 | */ |
1dfe95d8 |
611 | |
609133ee |
612 | static adns_status pa_mx_raw(const parseinfo *pai, int cbyte, |
613 | int max, void *datap) { |
eb81d633 |
614 | const byte *dgram= pai->dgram; |
615 | adns_rr_intstr *rrp= datap; |
616 | adns_status st; |
617 | int pref; |
1dfe95d8 |
618 | |
eb81d633 |
619 | if (cbyte+2 > max) return adns_s_invaliddata; |
620 | GET_W(cbyte,pref); |
621 | rrp->i= pref; |
622 | st= pap_domain(pai, &cbyte, max, &rrp->str, |
623 | pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); |
624 | if (st) return st; |
1dfe95d8 |
625 | |
eb81d633 |
626 | if (cbyte != max) return adns_s_invaliddata; |
627 | return adns_s_ok; |
628 | } |
1dfe95d8 |
629 | |
09957b1c |
630 | static int di_mx_raw(adns_state ads, const void *datap_a, const void *datap_b) { |
eb81d633 |
631 | const adns_rr_intstr *ap= datap_a, *bp= datap_b; |
632 | |
633 | if (ap->i < bp->i) return 0; |
634 | if (ap->i > bp->i) return 1; |
635 | return 0; |
1dfe95d8 |
636 | } |
637 | |
eb81d633 |
638 | /* |
639 | * _mx (pa,di) |
640 | */ |
1dfe95d8 |
641 | |
609133ee |
642 | static adns_status pa_mx(const parseinfo *pai, int cbyte, |
643 | int max, void *datap) { |
eb81d633 |
644 | const byte *dgram= pai->dgram; |
645 | adns_rr_inthostaddr *rrp= datap; |
646 | adns_status st; |
647 | int pref; |
648 | |
649 | if (cbyte+2 > max) return adns_s_invaliddata; |
650 | GET_W(cbyte,pref); |
651 | rrp->i= pref; |
652 | st= pap_hostaddr(pai, &cbyte, max, &rrp->ha); |
653 | if (st) return st; |
654 | |
655 | if (cbyte != max) return adns_s_invaliddata; |
656 | return adns_s_ok; |
657 | } |
658 | |
09957b1c |
659 | static int di_mx(adns_state ads, const void *datap_a, const void *datap_b) { |
eb81d633 |
660 | const adns_rr_inthostaddr *ap= datap_a, *bp= datap_b; |
661 | |
662 | if (ap->i < bp->i) return 0; |
663 | if (ap->i > bp->i) return 1; |
09957b1c |
664 | return dip_hostaddr(ads, &ap->ha, &bp->ha); |
1dfe95d8 |
665 | } |
666 | |
eb81d633 |
667 | /* |
668 | * _inthostaddr (mf,cs) |
669 | */ |
670 | |
1dfe95d8 |
671 | static void mf_inthostaddr(adns_query qu, void *datap) { |
672 | adns_rr_inthostaddr *rrp= datap; |
673 | |
674 | mfp_hostaddr(qu,&rrp->ha); |
675 | } |
676 | |
eb81d633 |
677 | static adns_status cs_inthostaddr(vbuf *vb, const void *datap) { |
678 | const adns_rr_inthostaddr *rrp= datap; |
679 | char buf[10]; |
e062dcae |
680 | |
eb81d633 |
681 | sprintf(buf,"%u ",rrp->i); |
682 | CSP_ADDSTR(buf); |
683 | |
684 | return csp_hostaddr(vb,&rrp->ha); |
ffbda80c |
685 | } |
686 | |
eb81d633 |
687 | /* |
b365d68a |
688 | * _inthost (cs) |
689 | */ |
690 | |
691 | static adns_status cs_inthost(vbuf *vb, const void *datap) { |
692 | const adns_rr_intstr *rrp= datap; |
693 | char buf[10]; |
694 | |
695 | sprintf(buf,"%u ",rrp->i); |
696 | CSP_ADDSTR(buf); |
697 | return csp_domain(vb,rrp->str); |
698 | } |
699 | |
700 | /* |
a6536d8b |
701 | * _ptr (pa, +icb_ptr) |
702 | */ |
703 | |
704 | static void icb_ptr(adns_query parent, adns_query child) { |
705 | adns_answer *cans= child->answer; |
706 | const adns_rr_addr *queried, *found; |
4218fb9a |
707 | adns_state ads= parent->ads; |
a6536d8b |
708 | int i; |
709 | |
710 | if (cans->status == adns_s_nxdomain || cans->status == adns_s_nodata) { |
711 | adns__query_fail(parent,adns_s_inconsistent); |
712 | return; |
713 | } else if (cans->status) { |
714 | adns__query_fail(parent,cans->status); |
715 | return; |
716 | } |
717 | |
718 | queried= &parent->ctx.info.ptr_parent_addr; |
719 | for (i=0, found=cans->rrs.addr; i<cans->nrrs; i++, found++) { |
720 | if (queried->len == found->len && |
721 | !memcmp(&queried->addr,&found->addr,queried->len)) { |
4218fb9a |
722 | if (!parent->children.head) { |
723 | adns__query_done(parent); |
724 | return; |
725 | } else { |
726 | LIST_LINK_TAIL(ads->childw,parent); |
727 | return; |
728 | } |
a6536d8b |
729 | } |
730 | } |
731 | |
732 | adns__query_fail(parent,adns_s_inconsistent); |
733 | } |
734 | |
609133ee |
735 | static adns_status pa_ptr(const parseinfo *pai, int dmstart, |
736 | int max, void *datap) { |
a6536d8b |
737 | static const char *(expectdomain[])= { DNS_INADDR_ARPA }; |
738 | |
739 | char **rrp= datap; |
740 | adns_status st; |
741 | adns_rr_addr *ap; |
742 | findlabel_state fls; |
743 | char *ep; |
744 | byte ipv[4]; |
745 | char labbuf[4]; |
746 | int cbyte, i, lablen, labstart, l, id; |
747 | adns_query nqu; |
748 | qcontext ctx; |
749 | |
750 | cbyte= dmstart; |
751 | st= pap_domain(pai, &cbyte, max, rrp, |
752 | pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); |
753 | if (st) return st; |
754 | if (cbyte != max) return adns_s_invaliddata; |
755 | |
756 | ap= &pai->qu->ctx.info.ptr_parent_addr; |
757 | if (!ap->len) { |
758 | adns__findlabel_start(&fls, pai->ads, -1, pai->qu, |
759 | pai->qu->query_dgram, pai->qu->query_dglen, |
760 | pai->qu->query_dglen, DNS_HDRSIZE, 0); |
761 | for (i=0; i<4; i++) { |
762 | st= adns__findlabel_next(&fls,&lablen,&labstart); assert(!st); |
ea1e31e3 |
763 | if (lablen<=0 || lablen>3) return adns_s_querydomainwrong; |
609133ee |
764 | memcpy(labbuf, pai->qu->query_dgram + labstart, lablen); |
765 | labbuf[lablen]= 0; |
766 | ipv[3-i]= strtoul(labbuf,&ep,10); |
767 | if (*ep) return adns_s_querydomainwrong; |
a6536d8b |
768 | if (lablen>1 && pai->qu->query_dgram[labstart]=='0') |
ea1e31e3 |
769 | return adns_s_querydomainwrong; |
a6536d8b |
770 | } |
771 | for (i=0; i<sizeof(expectdomain)/sizeof(*expectdomain); i++) { |
772 | st= adns__findlabel_next(&fls,&lablen,&labstart); assert(!st); |
773 | l= strlen(expectdomain[i]); |
609133ee |
774 | if (lablen != l || |
775 | memcmp(pai->qu->query_dgram + labstart, expectdomain[i], l)) |
ea1e31e3 |
776 | return adns_s_querydomainwrong; |
a6536d8b |
777 | } |
778 | st= adns__findlabel_next(&fls,&lablen,0); assert(!st); |
ea1e31e3 |
779 | if (lablen) return adns_s_querydomainwrong; |
a6536d8b |
780 | |
781 | ap->len= sizeof(struct sockaddr_in); |
782 | memset(&ap->addr,0,sizeof(ap->addr.inet)); |
783 | ap->addr.inet.sin_family= AF_INET; |
784 | ap->addr.inet.sin_addr.s_addr= |
785 | htonl((ipv[0]<<24) | (ipv[1]<<16) | (ipv[2]<<8) | (ipv[3])); |
786 | } |
787 | |
788 | st= adns__mkquery_frdgram(pai->ads, &pai->qu->vb, &id, |
789 | pai->dgram, pai->dglen, dmstart, |
790 | adns_r_addr, adns_qf_quoteok_query); |
791 | if (st) return st; |
792 | |
793 | ctx.ext= 0; |
794 | ctx.callback= icb_ptr; |
795 | memset(&ctx.info,0,sizeof(ctx.info)); |
796 | st= adns__internal_submit(pai->ads, &nqu, adns__findtype(adns_r_addr), |
797 | &pai->qu->vb, id, |
660d7d3b |
798 | adns_qf_quoteok_query, pai->now, &ctx); |
a6536d8b |
799 | if (st) return st; |
800 | |
801 | nqu->parent= pai->qu; |
802 | LIST_LINK_TAIL_PART(pai->qu->children,nqu,siblings.); |
a6536d8b |
803 | return adns_s_ok; |
804 | } |
805 | |
806 | /* |
b365d68a |
807 | * _strpair (mf) |
9ec44266 |
808 | */ |
809 | |
810 | static void mf_strpair(adns_query qu, void *datap) { |
811 | adns_rr_strpair *rrp= datap; |
812 | |
813 | adns__makefinal_str(qu,&rrp->array[0]); |
814 | adns__makefinal_str(qu,&rrp->array[1]); |
815 | } |
816 | |
9ec44266 |
817 | /* |
b365d68a |
818 | * _intstrpair (mf) |
9ec44266 |
819 | */ |
820 | |
821 | static void mf_intstrpair(adns_query qu, void *datap) { |
822 | adns_rr_intstrpair *rrp= datap; |
823 | |
824 | adns__makefinal_str(qu,&rrp->array[0].str); |
825 | adns__makefinal_str(qu,&rrp->array[1].str); |
826 | } |
827 | |
9ec44266 |
828 | /* |
829 | * _hinfo (pa) |
830 | */ |
831 | |
609133ee |
832 | static adns_status pa_hinfo(const parseinfo *pai, int cbyte, |
833 | int max, void *datap) { |
9ec44266 |
834 | adns_rr_intstrpair *rrp= datap; |
835 | adns_status st; |
836 | int i; |
837 | |
838 | for (i=0; i<2; i++) { |
b365d68a |
839 | st= pap_qstring(pai, &cbyte, max, &rrp->array[i].i, &rrp->array[i].str); |
9ec44266 |
840 | if (st) return st; |
841 | } |
842 | |
843 | if (cbyte != max) return adns_s_invaliddata; |
844 | |
845 | return adns_s_ok; |
846 | } |
847 | |
848 | /* |
b365d68a |
849 | * _mailbox (pap,cs) |
9ec44266 |
850 | */ |
851 | |
609133ee |
852 | static adns_status pap_mailbox822(const parseinfo *pai, |
853 | int *cbyte_io, int max, char **mb_r) { |
eaa44731 |
854 | int lablen, labstart, i, needquote, c, r, neednorm; |
855 | const unsigned char *p; |
856 | char *str; |
857 | findlabel_state fls; |
858 | adns_status st; |
859 | vbuf *vb; |
860 | |
861 | vb= &pai->qu->vb; |
862 | vb->used= 0; |
863 | adns__findlabel_start(&fls, pai->ads, |
864 | -1, pai->qu, |
865 | pai->dgram, pai->dglen, max, |
866 | *cbyte_io, cbyte_io); |
867 | st= adns__findlabel_next(&fls,&lablen,&labstart); |
868 | if (!lablen) { |
b365d68a |
869 | adns__vbuf_appendstr(vb,"."); |
eaa44731 |
870 | goto x_ok; |
871 | } |
872 | |
873 | neednorm= 1; |
874 | for (i=0, needquote=0, p= pai->dgram+labstart; i<lablen; i++) { |
875 | c= *p++; |
876 | if ((c&~128) < 32 || (c&~128) == 127) return adns_s_invaliddata; |
877 | if (c == '.' && !neednorm) neednorm= 1; |
7672a872 |
878 | else if (c==' ' || c>=127 || ctype_822special(c)) needquote++; |
eaa44731 |
879 | else neednorm= 0; |
880 | } |
881 | |
882 | if (needquote || neednorm) { |
883 | r= adns__vbuf_ensure(vb, lablen+needquote+4); if (!r) R_NOMEM; |
884 | adns__vbuf_appendq(vb,"\"",1); |
885 | for (i=0, needquote=0, p= pai->dgram+labstart; i<lablen; i++, p++) { |
886 | c= *p; |
b365d68a |
887 | if (c == '"' || c=='\\') adns__vbuf_appendq(vb,"\\",1); |
eaa44731 |
888 | adns__vbuf_appendq(vb,p,1); |
889 | } |
890 | adns__vbuf_appendq(vb,"\"",1); |
891 | } else { |
892 | r= adns__vbuf_append(vb, pai->dgram+labstart, lablen); if (!r) R_NOMEM; |
893 | } |
894 | |
895 | r= adns__vbuf_appendstr(vb,"@"); if (!r) R_NOMEM; |
896 | |
897 | st= adns__parse_domain_more(&fls,pai->ads, pai->qu,vb,0, pai->dgram); |
898 | if (st) return st; |
899 | |
900 | x_ok: |
901 | str= adns__alloc_interim(pai->qu, vb->used+1); if (!str) R_NOMEM; |
902 | memcpy(str,vb->buf,vb->used); |
903 | str[vb->used]= 0; |
904 | *mb_r= str; |
905 | return adns_s_ok; |
9ec44266 |
906 | } |
907 | |
9da4a044 |
908 | static adns_status pap_mailbox(const parseinfo *pai, int *cbyte_io, int max, |
909 | char **mb_r) { |
910 | if (pai->qu->typei->type & adns__qtf_mail822) { |
911 | return pap_mailbox822(pai, cbyte_io, max, mb_r); |
912 | } else { |
b365d68a |
913 | return pap_domain(pai, cbyte_io, max, mb_r, pdf_quoteok); |
9da4a044 |
914 | } |
915 | } |
916 | |
b365d68a |
917 | static adns_status csp_mailbox(vbuf *vb, const char *mailbox) { |
918 | return csp_domain(vb,mailbox); |
919 | } |
920 | |
9ec44266 |
921 | /* |
b365d68a |
922 | * _rp (pa,cs) |
9ec44266 |
923 | */ |
924 | |
609133ee |
925 | static adns_status pa_rp(const parseinfo *pai, int cbyte, |
926 | int max, void *datap) { |
9ec44266 |
927 | adns_rr_strpair *rrp= datap; |
928 | adns_status st; |
929 | |
930 | st= pap_mailbox(pai, &cbyte, max, &rrp->array[0]); |
931 | if (st) return st; |
932 | |
933 | st= pap_domain(pai, &cbyte, max, &rrp->array[1], pdf_quoteok); |
934 | if (st) return st; |
935 | |
936 | if (cbyte != max) return adns_s_invaliddata; |
937 | return adns_s_ok; |
938 | } |
939 | |
b365d68a |
940 | static adns_status cs_rp(vbuf *vb, const void *datap) { |
941 | const adns_rr_strpair *rrp= datap; |
942 | adns_status st; |
943 | |
944 | st= csp_mailbox(vb,rrp->array[0]); if (st) return st; |
945 | CSP_ADDSTR(" "); |
946 | st= csp_domain(vb,rrp->array[1]); if (st) return st; |
947 | |
948 | return adns_s_ok; |
949 | } |
950 | |
9ec44266 |
951 | /* |
952 | * _soa (pa,mf,cs) |
953 | */ |
954 | |
609133ee |
955 | static adns_status pa_soa(const parseinfo *pai, int cbyte, |
956 | int max, void *datap) { |
9ec44266 |
957 | adns_rr_soa *rrp= datap; |
958 | const byte *dgram= pai->dgram; |
959 | adns_status st; |
960 | int msw, lsw, i; |
961 | |
962 | st= pap_domain(pai, &cbyte, max, &rrp->mname, |
963 | pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); |
964 | if (st) return st; |
965 | |
966 | st= pap_mailbox(pai, &cbyte, max, &rrp->rname); |
967 | if (st) return st; |
968 | |
969 | if (cbyte+20 != max) return adns_s_invaliddata; |
970 | |
971 | for (i=0; i<5; i++) { |
972 | GET_W(cbyte,msw); |
973 | GET_W(cbyte,lsw); |
974 | (&rrp->serial)[i]= (msw<<16) | lsw; |
975 | } |
976 | |
977 | return adns_s_ok; |
978 | } |
979 | |
980 | static void mf_soa(adns_query qu, void *datap) { |
981 | adns_rr_soa *rrp= datap; |
982 | |
983 | adns__makefinal_str(qu,&rrp->mname); |
984 | adns__makefinal_str(qu,&rrp->rname); |
985 | } |
986 | |
987 | static adns_status cs_soa(vbuf *vb, const void *datap) { |
988 | const adns_rr_soa *rrp= datap; |
989 | char buf[20]; |
990 | int i; |
991 | adns_status st; |
992 | |
b365d68a |
993 | st= csp_domain(vb,rrp->mname); if (st) return st; |
9ec44266 |
994 | CSP_ADDSTR(" "); |
b365d68a |
995 | st= csp_mailbox(vb,rrp->rname); if (st) return st; |
9ec44266 |
996 | |
997 | for (i=0; i<5; i++) { |
998 | sprintf(buf," %lu",(&rrp->serial)[i]); |
999 | CSP_ADDSTR(buf); |
1000 | } |
1001 | |
1002 | return adns_s_ok; |
1003 | } |
1004 | |
1005 | /* |
a889f4be |
1006 | * _srv* (pa*2,di,cs*2,qdpl) |
d19b03d0 |
1007 | */ |
1008 | |
1009 | static adns_status qdpl_srv(adns_state ads, |
1010 | const char **p_io, const char *pe, int labelnum, |
1011 | char label_r[DNS_MAXDOMAIN], int *ll_io, |
1012 | adns_queryflags flags, |
1013 | const typeinfo *typei) { |
1014 | int useflags; |
1015 | const char *p_orig; |
1016 | adns_status st; |
1017 | |
1018 | if (labelnum < 2 && !(flags & adns_qf_quoteok_query)) { |
1019 | useflags= adns_qf_quoteok_query; |
1020 | p_orig= *p_io; |
1021 | } else { |
1022 | useflags= flags; |
1023 | p_orig= 0; |
1024 | } |
1025 | st= adns__qdpl_normal(ads, p_io,pe, labelnum,label_r, ll_io, useflags,typei); |
1026 | if (st) return st; |
1027 | |
1028 | if (p_orig) { |
1029 | int ll= *ll_io; |
1030 | if (!ll || label_r[0]!='_') |
1031 | return adns_s_querydomaininvalid; |
1032 | if (memchr(p_orig+1, '\\', pe - (p_orig+1))) |
1033 | return adns_s_querydomaininvalid; |
1034 | } |
1035 | return adns_s_ok; |
1036 | } |
1037 | |
05fc6b3a |
1038 | static adns_status pap_srv_begin(const parseinfo *pai, int *cbyte_io, int max, |
401c256a |
1039 | adns_rr_srvraw *rrp |
1040 | /* might be adns_rr_srvha* */) { |
1041 | const byte *dgram= pai->dgram; |
05fc6b3a |
1042 | int ti, cbyte; |
1043 | |
1044 | cbyte= *cbyte_io; |
1045 | if ((*cbyte_io += 6) > max) return adns_s_invaliddata; |
401c256a |
1046 | |
1047 | rrp->priority= GET_W(cbyte, ti); |
1048 | rrp->weight= GET_W(cbyte, ti); |
1049 | rrp->port= GET_W(cbyte, ti); |
1050 | return adns_s_ok; |
1051 | } |
1052 | |
1053 | static adns_status pa_srvraw(const parseinfo *pai, int cbyte, |
1054 | int max, void *datap) { |
1055 | adns_rr_srvraw *rrp= datap; |
1056 | adns_status st; |
1057 | |
05fc6b3a |
1058 | st= pap_srv_begin(pai,&cbyte,max,datap); |
401c256a |
1059 | if (st) return st; |
1060 | |
1061 | st= pap_domain(pai, &cbyte, max, &rrp->host, |
1062 | pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); |
1063 | if (st) return st; |
1064 | |
1065 | if (cbyte != max) return adns_s_invaliddata; |
1066 | return adns_s_ok; |
1067 | } |
1068 | |
1069 | static adns_status pa_srvha(const parseinfo *pai, int cbyte, |
1070 | int max, void *datap) { |
1071 | adns_rr_srvha *rrp= datap; |
1072 | adns_status st; |
1073 | |
05fc6b3a |
1074 | st= pap_srv_begin(pai,&cbyte,max,datap); if (st) return st; |
401c256a |
1075 | st= pap_hostaddr(pai, &cbyte, max, &rrp->ha); if (st) return st; |
1076 | if (cbyte != max) return adns_s_invaliddata; |
1077 | return adns_s_ok; |
1078 | } |
1079 | |
1080 | static void mf_srvraw(adns_query qu, void *datap) { |
1081 | adns_rr_srvraw *rrp= datap; |
1082 | adns__makefinal_str(qu, &rrp->host); |
1083 | } |
1084 | |
1085 | static void mf_srvha(adns_query qu, void *datap) { |
1086 | adns_rr_srvha *rrp= datap; |
1087 | mfp_hostaddr(qu,&rrp->ha); |
1088 | } |
1089 | |
1090 | static int di_srv(adns_state ads, const void *datap_a, const void *datap_b) { |
1091 | const adns_rr_srvraw *ap= datap_a, *bp= datap_b; |
1092 | /* might be const adns_rr_svhostaddr* */ |
1093 | |
1094 | if (ap->priority < bp->priority) return 0; |
1095 | if (ap->priority > bp->priority) return 1; |
1096 | return 0; |
1097 | } |
1098 | |
1099 | static adns_status csp_srv_begin(vbuf *vb, const adns_rr_srvraw *rrp |
1100 | /* might be adns_rr_srvha* */) { |
1101 | char buf[30]; |
1102 | sprintf(buf,"%u %u %u ", rrp->priority, rrp->weight, rrp->port); |
1103 | CSP_ADDSTR(buf); |
1104 | return adns_s_ok; |
1105 | } |
1106 | |
1107 | static adns_status cs_srvraw(vbuf *vb, const void *datap) { |
1108 | const adns_rr_srvraw *rrp= datap; |
1109 | adns_status st; |
1110 | |
1111 | st= csp_srv_begin(vb,rrp); if (st) return st; |
1112 | return csp_domain(vb,rrp->host); |
1113 | } |
1114 | |
1115 | static adns_status cs_srvha(vbuf *vb, const void *datap) { |
1116 | const adns_rr_srvha *rrp= datap; |
1117 | adns_status st; |
1118 | |
1119 | st= csp_srv_begin(vb,datap); if (st) return st; |
1120 | return csp_hostaddr(vb,&rrp->ha); |
1121 | } |
1122 | |
d19b03d0 |
1123 | /* |
eb81d633 |
1124 | * _flat (mf) |
1125 | */ |
1126 | |
ffbda80c |
1127 | static void mf_flat(adns_query qu, void *data) { } |
1128 | |
eb81d633 |
1129 | /* |
1130 | * Now the table. |
1131 | */ |
1132 | |
e062dcae |
1133 | #define TYPESZ_M(member) (sizeof(*((adns_answer*)0)->rrs.member)) |
86e7b8d9 |
1134 | |
ffbda80c |
1135 | #define DEEP_MEMB(memb) TYPESZ_M(memb), mf_##memb, cs_##memb |
1136 | #define FLAT_MEMB(memb) TYPESZ_M(memb), mf_flat, cs_##memb |
98a3f706 |
1137 | |
d19b03d0 |
1138 | #define DEEP_TYPE(code,rrt,fmt,memb,parser,comparer,printer) \ |
1139 | { adns_r_##code, rrt,fmt,TYPESZ_M(memb), mf_##memb, \ |
a889f4be |
1140 | printer,parser,comparer, adns__qdpl_normal } |
d19b03d0 |
1141 | #define FLAT_TYPE(code,rrt,fmt,memb,parser,comparer,printer) \ |
1142 | { adns_r_##code, rrt,fmt,TYPESZ_M(memb), mf_flat, \ |
a889f4be |
1143 | printer,parser,comparer, adns__qdpl_normal } |
1144 | #define XTRA_TYPE(code,rrt,fmt,memb,parser,comparer,printer,qdpl) \ |
1145 | { adns_r_##code, rrt,fmt,TYPESZ_M(memb), mf_##memb, \ |
1146 | printer,parser,comparer,qdpl } |
98a3f706 |
1147 | |
1148 | static const typeinfo typeinfos[] = { |
eb81d633 |
1149 | /* Must be in ascending order of rrtype ! */ |
609133ee |
1150 | /* mem-mgmt code rrt fmt member parser comparer printer */ |
1151 | |
1152 | FLAT_TYPE(a, "A", 0, inaddr, pa_inaddr, di_inaddr,cs_inaddr ), |
1153 | DEEP_TYPE(ns_raw, "NS", "raw",str, pa_host_raw,0, cs_domain ), |
1154 | DEEP_TYPE(cname, "CNAME", 0, str, pa_dom_raw, 0, cs_domain ), |
1155 | DEEP_TYPE(soa_raw,"SOA", "raw",soa, pa_soa, 0, cs_soa ), |
1156 | DEEP_TYPE(ptr_raw,"PTR", "raw",str, pa_host_raw,0, cs_domain ), |
1157 | DEEP_TYPE(hinfo, "HINFO", 0, intstrpair,pa_hinfo, 0, cs_hinfo ), |
1158 | DEEP_TYPE(mx_raw, "MX", "raw",intstr, pa_mx_raw, di_mx_raw,cs_inthost ), |
1159 | DEEP_TYPE(txt, "TXT", 0, manyistr,pa_txt, 0, cs_txt ), |
1160 | DEEP_TYPE(rp_raw, "RP", "raw",strpair, pa_rp, 0, cs_rp ), |
a889f4be |
1161 | XTRA_TYPE(srv_raw,"SRV", "raw",srvraw , pa_srvraw, di_srv,cs_srvraw,qdpl_srv), |
609133ee |
1162 | |
1163 | FLAT_TYPE(addr, "A", "addr", addr, pa_addr, di_addr, cs_addr ), |
1164 | DEEP_TYPE(ns, "NS", "+addr",hostaddr,pa_hostaddr,di_hostaddr,cs_hostaddr ), |
1165 | DEEP_TYPE(ptr, "PTR","checked",str, pa_ptr, 0, cs_domain ), |
1166 | DEEP_TYPE(mx, "MX", "+addr",inthostaddr,pa_mx, di_mx, cs_inthostaddr), |
a889f4be |
1167 | XTRA_TYPE(srv, "SRV","+addr",srvha, pa_srvha, di_srv,cs_srvha, qdpl_srv), |
d19b03d0 |
1168 | |
609133ee |
1169 | DEEP_TYPE(soa, "SOA","822", soa, pa_soa, 0, cs_soa ), |
1170 | DEEP_TYPE(rp, "RP", "822", strpair, pa_rp, 0, cs_rp ), |
98a3f706 |
1171 | }; |
1172 | |
f759e52e |
1173 | const typeinfo *adns__findtype(adns_rrtype type) { |
1174 | const typeinfo *begin, *end, *mid; |
98a3f706 |
1175 | |
1176 | begin= typeinfos; end= typeinfos+(sizeof(typeinfos)/sizeof(typeinfo)); |
1177 | |
1178 | while (begin < end) { |
1179 | mid= begin + ((end-begin)>>1); |
1180 | if (mid->type == type) return mid; |
1181 | if (type > mid->type) begin= mid+1; |
1182 | else end= mid; |
1183 | } |
1184 | return 0; |
1185 | } |