e576be50 |
1 | /* |
2 | * types.c |
3 | * - RR-type-specific code, and the machinery to call it |
4 | */ |
5 | /* |
6 | * This file is part of adns, which is Copyright (C) 1997, 1998 Ian Jackson |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify |
9 | * it under the terms of the GNU General Public License as published by |
10 | * the Free Software Foundation; either version 2, or (at your option) |
11 | * any later version. |
12 | * |
13 | * This program is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | * GNU General Public License for more details. |
17 | * |
18 | * You should have received a copy of the GNU General Public License |
19 | * along with this program; if not, write to the Free Software Foundation, |
20 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
21 | */ |
98a3f706 |
22 | |
1b644113 |
23 | #include <stdlib.h> |
828d89bd |
24 | #include <string.h> |
1b644113 |
25 | |
86e7b8d9 |
26 | #include <arpa/inet.h> |
27 | |
98a3f706 |
28 | #include "internal.h" |
29 | |
1dfe95d8 |
30 | #define R_NOMEM return adns_s_nolocalmem |
31 | #define CSP_ADDSTR(s) if (!adns__vbuf_appendstr(vb,(s))) R_NOMEM; else; |
32 | |
eb81d633 |
33 | /* |
34 | * order of sections: |
35 | * |
36 | * _textdata, _qstring (csp) |
37 | * _str (mf,cs) |
38 | * _intstr (mf,cs) |
39 | * _manyistr (mf,cs) |
40 | * _txt (pa) |
41 | * _inaddr (pa,dip,di) |
42 | * _addr (pa,di,csp,cs) |
43 | * _domain (pap) |
44 | * _host_raw (pa) |
45 | * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +pap_findaddrs) |
46 | * _mx_raw (pa,di) |
47 | * _mx (pa,di) |
48 | * _inthostaddr (mf,cs) |
49 | * _flat (mf) |
50 | * |
51 | * within each section: |
52 | * pap_* |
53 | * pa_* |
54 | * dip_* |
55 | * di_* |
56 | * mfp_* |
57 | * mf_* |
58 | * csp_* |
59 | * cs_* |
60 | */ |
61 | |
62 | /* |
63 | * _textdata, _qstring (csp) |
64 | */ |
65 | |
66 | static adns_status csp_textdata(vbuf *vb, const char *dp, int len) { |
67 | unsigned char ch; |
68 | char buf[10]; |
69 | int cn; |
70 | |
71 | CSP_ADDSTR("\""); |
72 | for (cn=0; cn<len; cn++) { |
73 | ch= *dp++; |
74 | if (ch >= 32 && ch <= 126 && ch != '"' && ch != '\\') { |
75 | if (!adns__vbuf_append(vb,&ch,1)) R_NOMEM; |
76 | } else { |
77 | sprintf(buf,"\\%02x",ch); |
78 | CSP_ADDSTR(buf); |
79 | } |
80 | } |
81 | CSP_ADDSTR("\""); |
82 | |
83 | return adns_s_ok; |
84 | } |
85 | |
86 | static adns_status csp_qstring(vbuf *vb, const char *dp) { |
87 | return csp_textdata(vb, dp, strlen(dp)); |
88 | } |
89 | |
90 | /* |
91 | * _str (mf,cs) |
92 | */ |
93 | |
94 | static void mf_str(adns_query qu, void *datap) { |
95 | char **rrp= datap; |
96 | |
97 | adns__makefinal_str(qu,rrp); |
98 | } |
99 | |
100 | static adns_status cs_str(vbuf *vb, const void *datap) { |
101 | const char *const *rrp= datap; |
102 | |
103 | return csp_qstring(vb,*rrp); |
104 | } |
105 | |
106 | /* |
107 | * _intstr (mf,cs) |
108 | */ |
109 | |
110 | static void mf_intstr(adns_query qu, void *datap) { |
111 | adns_rr_intstr *rrp= datap; |
112 | |
113 | adns__makefinal_str(qu,&rrp->str); |
114 | } |
115 | |
116 | static adns_status cs_intstr(vbuf *vb, const void *datap) { |
117 | const adns_rr_intstr *rrp= datap; |
118 | char buf[10]; |
119 | |
120 | sprintf(buf,"%u ",rrp->i); |
121 | CSP_ADDSTR(buf); |
122 | return csp_qstring(vb,rrp->str); |
123 | } |
124 | |
125 | /* |
126 | * _manyistr (mf,cs) |
127 | */ |
128 | |
129 | static void mf_manyistr(adns_query qu, void *datap) { |
130 | adns_rr_intstr **rrp= datap; |
131 | adns_rr_intstr *te, *table; |
132 | void *tablev; |
133 | int tc; |
134 | |
135 | for (tc=0, te= *rrp; te->i >= 0; te++, tc++); |
136 | tablev= *rrp; |
137 | adns__makefinal_block(qu,&tablev,sizeof(*te)*(tc+1)); |
138 | *rrp= table= tablev; |
139 | for (te= *rrp; te->i >= 0; te++) |
140 | adns__makefinal_str(qu,&te->str); |
141 | } |
142 | |
143 | static adns_status cs_manyistr(vbuf *vb, const void *datap) { |
144 | const adns_rr_intstr *const *rrp= datap; |
145 | const adns_rr_intstr *current; |
146 | adns_status st; |
147 | int spc; |
148 | |
149 | for (spc=0, current= *rrp; current->i >= 0; current++) { |
150 | if (spc) CSP_ADDSTR(" "); |
151 | st= csp_textdata(vb,current->str,current->i); if (st) return st; |
152 | } |
153 | return adns_s_ok; |
154 | } |
155 | |
156 | /* |
157 | * _txt (pa) |
158 | */ |
159 | |
160 | static adns_status pa_txt(const parseinfo *pai, int cbyte, int max, void *datap) { |
161 | adns_rr_intstr **rrp= datap, *table, *te; |
162 | const byte *dgram= pai->dgram; |
163 | int ti, tc, l, startbyte; |
164 | |
165 | startbyte= cbyte; |
166 | if (cbyte >= max) return adns_s_invaliddata; |
167 | tc= 0; |
168 | while (cbyte < max) { |
169 | GET_B(cbyte,l); |
170 | cbyte+= l; |
171 | } |
172 | if (cbyte != max) return adns_s_invaliddata; |
173 | |
174 | table= adns__alloc_interim(pai->qu,sizeof(*table)*(tc+1)); |
175 | if (!table) R_NOMEM; |
176 | |
177 | for (cbyte=startbyte, ti=0, te=table; ti<tc; ti++, te++) { |
178 | GET_B(cbyte,l); |
179 | te->str= adns__alloc_interim(pai->qu, l+1); |
180 | if (!te->str) R_NOMEM; |
181 | te->str[l]= 0; |
182 | memcpy(te->str,dgram+cbyte,l); |
183 | te->i= l; |
184 | } |
185 | assert(cbyte == max); |
186 | |
187 | te->i= -1; |
188 | te->str= 0; |
189 | |
190 | *rrp= table; |
191 | return adns_s_ok; |
828d89bd |
192 | } |
193 | |
eb81d633 |
194 | /* |
195 | * _inaddr (pa,dip,di) |
196 | */ |
197 | |
1dfe95d8 |
198 | static adns_status pa_inaddr(const parseinfo *pai, int cbyte, int max, void *datap) { |
e062dcae |
199 | struct in_addr *storeto= datap; |
e7a9ca47 |
200 | |
201 | if (max-cbyte != 4) return adns_s_invaliddata; |
1dfe95d8 |
202 | memcpy(storeto, pai->dgram + cbyte, 4); |
e7a9ca47 |
203 | return adns_s_ok; |
204 | } |
205 | |
eb81d633 |
206 | static int dip_inaddr(struct in_addr a, struct in_addr b) { |
207 | /* fixme implement sortlist */ |
208 | return 0; |
209 | } |
210 | |
e062dcae |
211 | static int di_inaddr(const void *datap_a, const void *datap_b) { |
212 | const struct in_addr *ap= datap_a, *bp= datap_b; |
213 | |
214 | return dip_inaddr(*ap,*bp); |
215 | } |
216 | |
217 | static adns_status cs_inaddr(vbuf *vb, const void *datap) { |
218 | const struct in_addr *rrp= datap, rr= *rrp; |
86e7b8d9 |
219 | const char *ia; |
220 | |
e062dcae |
221 | ia= inet_ntoa(rr); assert(ia); |
1dfe95d8 |
222 | CSP_ADDSTR(ia); |
223 | return adns_s_ok; |
86e7b8d9 |
224 | } |
e7a9ca47 |
225 | |
eb81d633 |
226 | /* |
227 | * _addr (pa,di,csp,cs) |
228 | */ |
229 | |
1dfe95d8 |
230 | static adns_status pa_addr(const parseinfo *pai, int cbyte, int max, void *datap) { |
828d89bd |
231 | adns_addr *storeto= datap; |
1dfe95d8 |
232 | const byte *dgram= pai->dgram; |
c7836bc9 |
233 | |
828d89bd |
234 | if (max-cbyte != 4) return adns_s_invaliddata; |
235 | storeto->len= sizeof(storeto->addr.inet); |
236 | memset(&storeto->addr,0,sizeof(storeto->addr.inet)); |
237 | storeto->addr.inet.sin_family= AF_INET; |
238 | storeto->addr.inet.sin_port= 0; |
239 | memcpy(&storeto->addr.inet.sin_addr,dgram+cbyte,4); |
240 | return adns_s_ok; |
241 | } |
242 | |
243 | static int di_addr(const void *datap_a, const void *datap_b) { |
244 | const adns_addr *ap= datap_a, *bp= datap_b; |
245 | |
1dfe95d8 |
246 | assert(ap->addr.sa.sa_family == AF_INET); |
828d89bd |
247 | return dip_inaddr(ap->addr.inet.sin_addr,bp->addr.inet.sin_addr); |
248 | } |
249 | |
1dfe95d8 |
250 | static adns_status csp_addr(vbuf *vb, const adns_addr *rrp) { |
828d89bd |
251 | const char *ia; |
252 | static char buf[30]; |
253 | |
254 | switch (rrp->addr.inet.sin_family) { |
255 | case AF_INET: |
1dfe95d8 |
256 | CSP_ADDSTR("AF_INET "); |
828d89bd |
257 | ia= inet_ntoa(rrp->addr.inet.sin_addr); assert(ia); |
1dfe95d8 |
258 | CSP_ADDSTR(ia); |
828d89bd |
259 | break; |
260 | default: |
261 | sprintf(buf,"AF=%u",rrp->addr.sa.sa_family); |
1dfe95d8 |
262 | CSP_ADDSTR(buf); |
828d89bd |
263 | break; |
264 | } |
265 | return adns_s_ok; |
266 | } |
267 | |
1dfe95d8 |
268 | static adns_status cs_addr(vbuf *vb, const void *datap) { |
269 | const adns_addr *rrp= datap; |
270 | |
271 | return csp_addr(vb,rrp); |
272 | } |
273 | |
eb81d633 |
274 | /* |
275 | * _domain (pap) |
276 | */ |
277 | |
1dfe95d8 |
278 | static adns_status pap_domain(const parseinfo *pai, int *cbyte_io, int max, |
279 | char **domain_r, parsedomain_flags flags) { |
e062dcae |
280 | adns_status st; |
281 | char *dm; |
282 | |
1dfe95d8 |
283 | st= adns__parse_domain(pai->qu->ads, pai->serv, pai->qu, &pai->qu->vb, flags, |
284 | pai->dgram,pai->dglen, cbyte_io, max); |
e062dcae |
285 | if (st) return st; |
1dfe95d8 |
286 | if (!pai->qu->vb.used) return adns_s_invaliddata; |
e062dcae |
287 | |
1dfe95d8 |
288 | dm= adns__alloc_interim(pai->qu, pai->qu->vb.used+1); |
289 | if (!dm) R_NOMEM; |
e062dcae |
290 | |
1dfe95d8 |
291 | dm[pai->qu->vb.used]= 0; |
292 | memcpy(dm,pai->qu->vb.buf,pai->qu->vb.used); |
e062dcae |
293 | |
294 | *domain_r= dm; |
295 | return adns_s_ok; |
296 | } |
297 | |
eb81d633 |
298 | /* |
299 | * _host_raw (pa) |
300 | */ |
301 | |
1dfe95d8 |
302 | static adns_status pa_host_raw(const parseinfo *pai, int cbyte, int max, void *datap) { |
e062dcae |
303 | char **rrp= datap; |
ffbda80c |
304 | adns_status st; |
86e7b8d9 |
305 | |
1dfe95d8 |
306 | st= pap_domain(pai, &cbyte, max, rrp, |
307 | pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); |
e062dcae |
308 | if (st) return st; |
309 | |
310 | if (cbyte != max) return adns_s_invaliddata; |
311 | return adns_s_ok; |
312 | } |
ffbda80c |
313 | |
eb81d633 |
314 | /* |
315 | * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +pap_findaddrs) |
316 | */ |
c7836bc9 |
317 | |
1dfe95d8 |
318 | static adns_status pap_findaddrs(const parseinfo *pai, adns_rr_hostaddr *ha, |
319 | int *cbyte_io, int count, int dmstart) { |
320 | int rri, naddrs; |
c7836bc9 |
321 | int type, class, rdlen, rdstart, ownermatched; |
1dfe95d8 |
322 | adns_status st; |
c7836bc9 |
323 | |
1dfe95d8 |
324 | for (rri=0, naddrs=-1; rri<count; rri++) { |
325 | st= adns__findrr_anychk(pai->qu, pai->serv, pai->dgram, pai->dglen, cbyte_io, |
326 | &type, &class, &rdlen, &rdstart, |
327 | pai->dgram, pai->dglen, dmstart, &ownermatched); |
c7836bc9 |
328 | if (st) return st; |
1dfe95d8 |
329 | if (!ownermatched || class != DNS_CLASS_IN || type != adns_r_a) { |
330 | if (naddrs>0) break; else continue; |
331 | } |
332 | if (naddrs == -1) { |
333 | naddrs= 0; |
c7836bc9 |
334 | } |
1dfe95d8 |
335 | if (!adns__vbuf_ensure(&pai->qu->vb, (naddrs+1)*sizeof(adns_addr))) R_NOMEM; |
336 | st= pa_addr(pai, rdstart,rdstart+rdlen, pai->qu->vb.buf + naddrs*sizeof(adns_addr)); |
c7836bc9 |
337 | if (st) return st; |
1dfe95d8 |
338 | naddrs++; |
c7836bc9 |
339 | } |
1dfe95d8 |
340 | if (naddrs >= 0) { |
341 | ha->addrs= adns__alloc_interim(pai->qu, naddrs*sizeof(adns_addr)); |
342 | if (!ha->addrs) R_NOMEM; |
343 | memcpy(ha->addrs, pai->qu->vb.buf, naddrs*sizeof(adns_addr)); |
344 | ha->naddrs= naddrs; |
c7836bc9 |
345 | ha->astatus= adns_s_ok; |
1dfe95d8 |
346 | |
347 | adns__isort(ha->addrs, naddrs, sizeof(adns_addr), pai->qu->vb.buf, di_addr); |
c7836bc9 |
348 | } |
349 | return adns_s_ok; |
350 | } |
351 | |
1dfe95d8 |
352 | static adns_status pap_hostaddr(const parseinfo *pai, int *cbyte_io, |
353 | int max, adns_rr_hostaddr *rrp) { |
c7836bc9 |
354 | adns_status st; |
355 | int dmstart, cbyte; |
356 | |
357 | dmstart= cbyte= *cbyte_io; |
1dfe95d8 |
358 | st= pap_domain(pai, &cbyte, max, &rrp->host, |
359 | pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); |
c7836bc9 |
360 | if (st) return st; |
361 | *cbyte_io= cbyte; |
362 | |
363 | rrp->astatus= adns_s_ok; |
364 | rrp->naddrs= -1; |
365 | rrp->addrs= 0; |
366 | |
1dfe95d8 |
367 | cbyte= pai->nsstart; |
c7836bc9 |
368 | |
1dfe95d8 |
369 | st= pap_findaddrs(pai, rrp, &cbyte, pai->nscount, dmstart); |
c7836bc9 |
370 | if (st) return st; |
371 | if (rrp->naddrs != -1) return adns_s_ok; |
372 | |
1dfe95d8 |
373 | st= pap_findaddrs(pai, rrp, &cbyte, pai->arcount, dmstart); |
c7836bc9 |
374 | if (st) return st; |
375 | if (rrp->naddrs != -1) return adns_s_ok; |
1dfe95d8 |
376 | |
377 | rrp->naddrs= 0; /* fixme additional section didn't have required data */ |
378 | rrp->astatus= adns_s_notimplemented; |
379 | |
380 | return adns_s_ok; |
c7836bc9 |
381 | } |
382 | |
1dfe95d8 |
383 | static adns_status pa_hostaddr(const parseinfo *pai, int cbyte, int max, void *datap) { |
384 | adns_rr_hostaddr *rrp= datap; |
c7836bc9 |
385 | adns_status st; |
c7836bc9 |
386 | |
1dfe95d8 |
387 | st= pap_hostaddr(pai, &cbyte, max, rrp); |
c7836bc9 |
388 | if (st) return st; |
389 | if (cbyte != max) return adns_s_invaliddata; |
390 | |
1dfe95d8 |
391 | return adns_s_ok; |
392 | } |
c7836bc9 |
393 | |
1dfe95d8 |
394 | static int dip_hostaddr(const adns_rr_hostaddr *ap, const adns_rr_hostaddr *bp) { |
395 | if (ap->astatus != bp->astatus) return ap->astatus; |
396 | if (ap->astatus) return 0; |
c7836bc9 |
397 | |
1dfe95d8 |
398 | assert(ap->addrs[0].addr.sa.sa_family == AF_INET); |
399 | assert(bp->addrs[0].addr.sa.sa_family == AF_INET); |
400 | return dip_inaddr(ap->addrs[0].addr.inet.sin_addr, bp->addrs[0].addr.inet.sin_addr); |
401 | } |
402 | |
403 | static int di_hostaddr(const void *datap_a, const void *datap_b) { |
404 | const adns_rr_hostaddr *ap= datap_a, *bp= datap_b; |
405 | |
406 | return dip_hostaddr(ap,bp); |
c7836bc9 |
407 | } |
408 | |
eb81d633 |
409 | static void mfp_hostaddr(adns_query qu, adns_rr_hostaddr *rrp) { |
410 | void *tablev; |
e062dcae |
411 | |
eb81d633 |
412 | adns__makefinal_str(qu,&rrp->host); |
413 | tablev= rrp->addrs; |
414 | adns__makefinal_block(qu, &tablev, rrp->naddrs*sizeof(*rrp->addrs)); |
415 | rrp->addrs= tablev; |
e062dcae |
416 | } |
417 | |
eb81d633 |
418 | static void mf_hostaddr(adns_query qu, void *datap) { |
419 | adns_rr_hostaddr *rrp= datap; |
e062dcae |
420 | |
eb81d633 |
421 | mfp_hostaddr(qu,rrp); |
e062dcae |
422 | } |
423 | |
1dfe95d8 |
424 | static adns_status csp_hostaddr(vbuf *vb, const adns_rr_hostaddr *rrp) { |
425 | const char *to_add; |
426 | adns_status st; |
427 | int i; |
428 | |
429 | st= csp_qstring(vb,rrp->host); if (st) return st; |
430 | |
431 | if (rrp->astatus) { |
432 | CSP_ADDSTR(" - "); |
433 | CSP_ADDSTR(adns_strerror(rrp->astatus)); |
434 | } else { |
435 | assert(rrp->naddrs > 0); |
436 | for (i=0, to_add= ": "; i<rrp->naddrs; i++, to_add= ", ") { |
437 | CSP_ADDSTR(to_add); |
438 | st= csp_addr(vb,&rrp->addrs[i]); |
439 | } |
440 | } |
441 | return adns_s_ok; |
442 | } |
443 | |
444 | static adns_status cs_hostaddr(vbuf *vb, const void *datap) { |
445 | const adns_rr_hostaddr *rrp= datap; |
446 | |
447 | return csp_hostaddr(vb,rrp); |
448 | } |
449 | |
eb81d633 |
450 | /* |
451 | * _mx_raw (pa,di) |
452 | */ |
1dfe95d8 |
453 | |
eb81d633 |
454 | static adns_status pa_mx_raw(const parseinfo *pai, int cbyte, int max, void *datap) { |
455 | const byte *dgram= pai->dgram; |
456 | adns_rr_intstr *rrp= datap; |
457 | adns_status st; |
458 | int pref; |
1dfe95d8 |
459 | |
eb81d633 |
460 | if (cbyte+2 > max) return adns_s_invaliddata; |
461 | GET_W(cbyte,pref); |
462 | rrp->i= pref; |
463 | st= pap_domain(pai, &cbyte, max, &rrp->str, |
464 | pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0); |
465 | if (st) return st; |
1dfe95d8 |
466 | |
eb81d633 |
467 | if (cbyte != max) return adns_s_invaliddata; |
468 | return adns_s_ok; |
469 | } |
1dfe95d8 |
470 | |
eb81d633 |
471 | static int di_mx_raw(const void *datap_a, const void *datap_b) { |
472 | const adns_rr_intstr *ap= datap_a, *bp= datap_b; |
473 | |
474 | if (ap->i < bp->i) return 0; |
475 | if (ap->i > bp->i) return 1; |
476 | return 0; |
1dfe95d8 |
477 | } |
478 | |
eb81d633 |
479 | /* |
480 | * _mx (pa,di) |
481 | */ |
1dfe95d8 |
482 | |
eb81d633 |
483 | static adns_status pa_mx(const parseinfo *pai, int cbyte, int max, void *datap) { |
484 | const byte *dgram= pai->dgram; |
485 | adns_rr_inthostaddr *rrp= datap; |
486 | adns_status st; |
487 | int pref; |
488 | |
489 | if (cbyte+2 > max) return adns_s_invaliddata; |
490 | GET_W(cbyte,pref); |
491 | rrp->i= pref; |
492 | st= pap_hostaddr(pai, &cbyte, max, &rrp->ha); |
493 | if (st) return st; |
494 | |
495 | if (cbyte != max) return adns_s_invaliddata; |
496 | return adns_s_ok; |
497 | } |
498 | |
499 | static int di_mx(const void *datap_a, const void *datap_b) { |
500 | const adns_rr_inthostaddr *ap= datap_a, *bp= datap_b; |
501 | |
502 | if (ap->i < bp->i) return 0; |
503 | if (ap->i > bp->i) return 1; |
504 | return dip_hostaddr(&ap->ha,&bp->ha); |
1dfe95d8 |
505 | } |
506 | |
eb81d633 |
507 | /* |
508 | * _inthostaddr (mf,cs) |
509 | */ |
510 | |
1dfe95d8 |
511 | static void mf_inthostaddr(adns_query qu, void *datap) { |
512 | adns_rr_inthostaddr *rrp= datap; |
513 | |
514 | mfp_hostaddr(qu,&rrp->ha); |
515 | } |
516 | |
eb81d633 |
517 | static adns_status cs_inthostaddr(vbuf *vb, const void *datap) { |
518 | const adns_rr_inthostaddr *rrp= datap; |
519 | char buf[10]; |
e062dcae |
520 | |
eb81d633 |
521 | sprintf(buf,"%u ",rrp->i); |
522 | CSP_ADDSTR(buf); |
523 | |
524 | return csp_hostaddr(vb,&rrp->ha); |
ffbda80c |
525 | } |
526 | |
eb81d633 |
527 | /* |
528 | * _flat (mf) |
529 | */ |
530 | |
ffbda80c |
531 | static void mf_flat(adns_query qu, void *data) { } |
532 | |
eb81d633 |
533 | /* |
534 | * Now the table. |
535 | */ |
536 | |
e062dcae |
537 | #define TYPESZ_M(member) (sizeof(*((adns_answer*)0)->rrs.member)) |
86e7b8d9 |
538 | |
ffbda80c |
539 | #define DEEP_MEMB(memb) TYPESZ_M(memb), mf_##memb, cs_##memb |
540 | #define FLAT_MEMB(memb) TYPESZ_M(memb), mf_flat, cs_##memb |
98a3f706 |
541 | |
eb81d633 |
542 | #define DEEP_TYPE(code,rrt,fmt,memb,parser,comparer) \ |
543 | { adns_r_##code, rrt, fmt, TYPESZ_M(memb), mf_##memb, cs_##memb, parser, comparer } |
544 | #define FLAT_TYPE(code,rrt,fmt,memb,parser,comparer) \ |
545 | { adns_r_##code, rrt, fmt, TYPESZ_M(memb), mf_flat, cs_##memb, parser, comparer } |
98a3f706 |
546 | |
547 | static const typeinfo typeinfos[] = { |
eb81d633 |
548 | /* Must be in ascending order of rrtype ! */ |
549 | /* mem-mgmt code rrt fmt member parser comparer */ |
1dfe95d8 |
550 | |
eb81d633 |
551 | FLAT_TYPE(a, "A", 0, inaddr, pa_inaddr, di_inaddr ), |
552 | DEEP_TYPE(ns_raw, "NS", "raw", str, pa_host_raw, 0 ), |
553 | DEEP_TYPE(cname, "CNAME", 0, str, pa_host_raw, 0 ), |
554 | #if 0 |
555 | DEEP_TYPE(soa_raw, "SOA", "raw", soa, pa_soa, 0 ), |
1dfe95d8 |
556 | #endif |
eb81d633 |
557 | DEEP_TYPE(ptr_raw, "PTR", "raw", str, pa_host_raw, 0 ), |
558 | #if 0 |
559 | DEEP_TYPE(hinfo, "HINFO", 0, strpair, pa_hinfo, 0 ), |
1dfe95d8 |
560 | #endif |
eb81d633 |
561 | DEEP_TYPE(mx_raw, "MX", "raw", intstr, pa_mx_raw, di_mx_raw ), |
562 | DEEP_TYPE(txt, "TXT", 0, manyistr, pa_txt, 0 ), |
563 | #if 0 |
564 | DEEP_TYPE(rp_raw, "RP", "raw", strpair, pa_rp, 0 ), |
1dfe95d8 |
565 | #endif |
566 | |
eb81d633 |
567 | FLAT_TYPE(addr, "A", "addr", addr, pa_addr, di_addr ), |
568 | DEEP_TYPE(ns, "NS", "+addr", hostaddr, pa_hostaddr, di_hostaddr ), |
569 | #if 0 |
570 | DEEP_TYPE(ptr, "PTR","checked", str, pa_ptr, 0 ), |
e062dcae |
571 | #endif |
eb81d633 |
572 | DEEP_TYPE(mx, "MX", "+addr", inthostaddr, pa_mx, di_mx ), |
1dfe95d8 |
573 | |
eb81d633 |
574 | #if 0 |
575 | DEEP_TYPE(soa, "SOA","822", soa, pa_soa, 0 ), |
576 | DEEP_TYPE(rp, "RP", "822", strpair, pa_rp, 0 ), |
577 | #endif /* fixme - implement all types */ |
98a3f706 |
578 | }; |
579 | |
f759e52e |
580 | const typeinfo *adns__findtype(adns_rrtype type) { |
581 | const typeinfo *begin, *end, *mid; |
98a3f706 |
582 | |
583 | begin= typeinfos; end= typeinfos+(sizeof(typeinfos)/sizeof(typeinfo)); |
584 | |
585 | while (begin < end) { |
586 | mid= begin + ((end-begin)>>1); |
587 | if (mid->type == type) return mid; |
588 | if (type > mid->type) begin= mid+1; |
589 | else end= mid; |
590 | } |
591 | return 0; |
592 | } |