3 * - RR-type-specific code, and the machinery to call it
6 * This file is part of adns, which is Copyright (C) 1997, 1998 Ian Jackson
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)
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.
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.
26 #include <arpa/inet.h>
30 #define R_NOMEM return adns_s_nomemory
31 #define CSP_ADDSTR(s) if (!adns__vbuf_appendstr(vb,(s))) R_NOMEM; else;
37 * _textdata, _qstring (csp)
43 * _addr (pa,di,csp,cs)
46 * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +pap_findaddrs)
49 * _inthostaddr (mf,cs)
59 * within each section:
72 * _textdata, _qstring (csp)
75 static adns_status
pap_string(const parseinfo
*pai
, int *cbyte_io
, int max
,
76 int *len_r
, char **str_r
) {
77 /* Neither len_r nor str_r may be null.
78 * End of datagram (overrun) is indicated by returning adns_s_invaliddata;
80 const byte
*dgram
= pai
->dgram
;
86 if (cbyte
>= max
) return adns_s_invaliddata
;
88 if (cbyte
+l
> max
) return adns_s_invaliddata
;
90 str
= adns__alloc_interim(pai
->qu
, l
+1);
94 memcpy(str
,dgram
+cbyte
,l
);
103 static adns_status
csp_textdata(vbuf
*vb
, const char *dp
, int len
) {
109 for (cn
=0; cn
<len
; cn
++) {
111 if (ch
>= 32 && ch
<= 126 && ch
!= '"' && ch
!= '\\') {
112 if (!adns__vbuf_append(vb
,&ch
,1)) R_NOMEM
;
113 } else if (ch
== '\\') {
116 sprintf(buf
,"\\x%02x",ch
);
125 static adns_status
csp_qstring(vbuf
*vb
, const char *dp
) {
126 return csp_textdata(vb
, dp
, strlen(dp
));
133 static void mf_str(adns_query qu
, void *datap
) {
136 adns__makefinal_str(qu
,rrp
);
139 static adns_status
cs_str(vbuf
*vb
, const void *datap
) {
140 const char *const *rrp
= datap
;
142 return csp_qstring(vb
,*rrp
);
146 * _intstr (mf,csp,cs)
149 static void mf_intstr(adns_query qu
, void *datap
) {
150 adns_rr_intstr
*rrp
= datap
;
152 adns__makefinal_str(qu
,&rrp
->str
);
155 static adns_status
csp_intstr(vbuf
*vb
, const adns_rr_intstr
*rrp
) {
158 sprintf(buf
,"%u ",rrp
->i
);
160 return csp_qstring(vb
,rrp
->str
);
163 static adns_status
cs_intstr(vbuf
*vb
, const void *datap
) {
164 const adns_rr_intstr
*rrp
= datap
;
166 return csp_intstr(vb
,rrp
);
173 static void mf_manyistr(adns_query qu
, void *datap
) {
174 adns_rr_intstr
**rrp
= datap
;
175 adns_rr_intstr
*te
, *table
;
179 for (tc
=0, te
= *rrp
; te
->i
>= 0; te
++, tc
++);
181 adns__makefinal_block(qu
,&tablev
,sizeof(*te
)*(tc
+1));
183 for (te
= *rrp
; te
->i
>= 0; te
++)
184 adns__makefinal_str(qu
,&te
->str
);
187 static adns_status
cs_manyistr(vbuf
*vb
, const void *datap
) {
188 const adns_rr_intstr
*const *rrp
= datap
;
189 const adns_rr_intstr
*current
;
193 for (spc
=0, current
= *rrp
; current
->i
>= 0; current
++) {
194 if (spc
) CSP_ADDSTR(" ");
195 st
= csp_textdata(vb
,current
->str
,current
->i
); if (st
) return st
;
204 static adns_status
pa_txt(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
205 adns_rr_intstr
**rrp
= datap
, *table
, *te
;
206 const byte
*dgram
= pai
->dgram
;
207 int ti
, tc
, l
, startbyte
;
211 if (cbyte
>= max
) return adns_s_invaliddata
;
213 while (cbyte
< max
) {
218 if (cbyte
!= max
) return adns_s_invaliddata
;
220 table
= adns__alloc_interim(pai
->qu
,sizeof(*table
)*(tc
+1));
223 for (cbyte
=startbyte
, ti
=0, te
=table
; ti
<tc
; ti
++, te
++) {
224 st
= pap_string(pai
, &cbyte
, max
, &te
->i
, &te
->str
);
227 assert(cbyte
== max
);
237 * _inaddr (pa,dip,di)
240 static adns_status
pa_inaddr(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
241 struct in_addr
*storeto
= datap
;
243 if (max
-cbyte
!= 4) return adns_s_invaliddata
;
244 memcpy(storeto
, pai
->dgram
+ cbyte
, 4);
248 static int dip_inaddr(struct in_addr a
, struct in_addr b
) {
249 /* fixme implement sortlist */
253 static int di_inaddr(const void *datap_a
, const void *datap_b
) {
254 const struct in_addr
*ap
= datap_a
, *bp
= datap_b
;
256 return dip_inaddr(*ap
,*bp
);
259 static adns_status
cs_inaddr(vbuf
*vb
, const void *datap
) {
260 const struct in_addr
*rrp
= datap
, rr
= *rrp
;
263 ia
= inet_ntoa(rr
); assert(ia
);
269 * _addr (pa,di,csp,cs)
272 static adns_status
pa_addr(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
273 adns_rr_addr
*storeto
= datap
;
274 const byte
*dgram
= pai
->dgram
;
276 if (max
-cbyte
!= 4) return adns_s_invaliddata
;
277 storeto
->len
= sizeof(storeto
->addr
.inet
);
278 memset(&storeto
->addr
,0,sizeof(storeto
->addr
.inet
));
279 storeto
->addr
.inet
.sin_family
= AF_INET
;
280 memcpy(&storeto
->addr
.inet
.sin_addr
,dgram
+cbyte
,4);
284 static int di_addr(const void *datap_a
, const void *datap_b
) {
285 const adns_rr_addr
*ap
= datap_a
, *bp
= datap_b
;
287 assert(ap
->addr
.sa
.sa_family
== AF_INET
);
288 return dip_inaddr(ap
->addr
.inet
.sin_addr
,bp
->addr
.inet
.sin_addr
);
291 static adns_status
csp_addr(vbuf
*vb
, const adns_rr_addr
*rrp
) {
295 switch (rrp
->addr
.inet
.sin_family
) {
297 CSP_ADDSTR("AF_INET ");
298 ia
= inet_ntoa(rrp
->addr
.inet
.sin_addr
); assert(ia
);
302 sprintf(buf
,"AF=%u",rrp
->addr
.sa
.sa_family
);
309 static adns_status
cs_addr(vbuf
*vb
, const void *datap
) {
310 const adns_rr_addr
*rrp
= datap
;
312 return csp_addr(vb
,rrp
);
319 static adns_status
pap_domain(const parseinfo
*pai
, int *cbyte_io
, int max
,
320 char **domain_r
, parsedomain_flags flags
) {
324 st
= adns__parse_domain(pai
->qu
->ads
, pai
->serv
, pai
->qu
, &pai
->qu
->vb
, flags
,
325 pai
->dgram
,pai
->dglen
, cbyte_io
, max
);
327 if (!pai
->qu
->vb
.used
) return adns_s_invaliddata
;
329 dm
= adns__alloc_interim(pai
->qu
, pai
->qu
->vb
.used
+1);
332 dm
[pai
->qu
->vb
.used
]= 0;
333 memcpy(dm
,pai
->qu
->vb
.buf
,pai
->qu
->vb
.used
);
343 static adns_status
pa_host_raw(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
347 st
= pap_domain(pai
, &cbyte
, max
, rrp
,
348 pai
->qu
->flags
& adns_qf_quoteok_anshost ? pdf_quoteok
: 0);
351 if (cbyte
!= max
) return adns_s_invaliddata
;
356 * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +icb_hostaddr, pap_findaddrs)
359 static adns_status
pap_findaddrs(const parseinfo
*pai
, adns_rr_hostaddr
*ha
,
360 int *cbyte_io
, int count
, int dmstart
) {
362 int type
, class, rdlen
, rdstart
, ownermatched
;
365 for (rri
=0, naddrs
=-1; rri
<count
; rri
++) {
366 st
= adns__findrr_anychk(pai
->qu
, pai
->serv
, pai
->dgram
, pai
->dglen
, cbyte_io
,
367 &type
, &class, &rdlen
, &rdstart
,
368 pai
->dgram
, pai
->dglen
, dmstart
, &ownermatched
);
370 if (!ownermatched
|| class != DNS_CLASS_IN
|| type
!= adns_r_a
) {
371 if (naddrs
>0) break; else continue;
376 if (!adns__vbuf_ensure(&pai
->qu
->vb
, (naddrs
+1)*sizeof(adns_rr_addr
))) R_NOMEM
;
377 st
= pa_addr(pai
, rdstart
,rdstart
+rdlen
,
378 pai
->qu
->vb
.buf
+ naddrs
*sizeof(adns_rr_addr
));
383 ha
->addrs
= adns__alloc_interim(pai
->qu
, naddrs
*sizeof(adns_rr_addr
));
384 if (!ha
->addrs
) R_NOMEM
;
385 memcpy(ha
->addrs
, pai
->qu
->vb
.buf
, naddrs
*sizeof(adns_rr_addr
));
387 ha
->astatus
= adns_s_ok
;
389 adns__isort(ha
->addrs
, naddrs
, sizeof(adns_rr_addr
), pai
->qu
->vb
.buf
, di_addr
);
394 static void icb_hostaddr(adns_query parent
, adns_query child
) {
395 adns_answer
*cans
= child
->answer
;
396 adns_rr_hostaddr
*rrp
= child
->ctx
.info
.hostaddr
;
398 rrp
->astatus
= cans
->status
;
399 rrp
->naddrs
= cans
->nrrs
;
400 rrp
->addrs
= cans
->rrs
.addr
;
401 adns__transfer_interim(child
, parent
, rrp
->addrs
, rrp
->naddrs
*sizeof(adns_rr_addr
));
403 if (!parent
->children
.head
) adns__query_done(parent
);
406 static adns_status
pap_hostaddr(const parseinfo
*pai
, int *cbyte_io
,
407 int max
, adns_rr_hostaddr
*rrp
) {
414 dmstart
= cbyte
= *cbyte_io
;
415 st
= pap_domain(pai
, &cbyte
, max
, &rrp
->host
,
416 pai
->qu
->flags
& adns_qf_quoteok_anshost ? pdf_quoteok
: 0);
420 rrp
->astatus
= adns_s_ok
;
426 st
= pap_findaddrs(pai
, rrp
, &cbyte
, pai
->nscount
, dmstart
);
428 if (rrp
->naddrs
!= -1) return adns_s_ok
;
430 st
= pap_findaddrs(pai
, rrp
, &cbyte
, pai
->arcount
, dmstart
);
432 if (rrp
->naddrs
!= -1) return adns_s_ok
;
434 st
= adns__mkquery_frdgram(pai
->ads
, &pai
->qu
->vb
, &id
,
435 pai
->dgram
, pai
->dglen
, dmstart
,
436 adns_r_addr
, adns_qf_quoteok_query
);
440 ctx
.callback
= icb_hostaddr
;
441 ctx
.info
.hostaddr
= rrp
;
442 st
= adns__internal_submit(pai
->ads
, &nqu
, adns__findtype(adns_r_addr
),
444 adns_qf_quoteok_query
, pai
->now
, 0, &ctx
);
447 nqu
->parent
= pai
->qu
;
448 LIST_LINK_TAIL_PART(pai
->qu
->children
,nqu
,siblings
.);
453 static adns_status
pa_hostaddr(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
454 adns_rr_hostaddr
*rrp
= datap
;
457 st
= pap_hostaddr(pai
, &cbyte
, max
, rrp
);
459 if (cbyte
!= max
) return adns_s_invaliddata
;
464 static int dip_hostaddr(const adns_rr_hostaddr
*ap
, const adns_rr_hostaddr
*bp
) {
465 if (ap
->astatus
!= bp
->astatus
) return ap
->astatus
;
466 if (ap
->astatus
) return 0;
468 assert(ap
->addrs
[0].addr
.sa
.sa_family
== AF_INET
);
469 assert(bp
->addrs
[0].addr
.sa
.sa_family
== AF_INET
);
470 return dip_inaddr(ap
->addrs
[0].addr
.inet
.sin_addr
, bp
->addrs
[0].addr
.inet
.sin_addr
);
473 static int di_hostaddr(const void *datap_a
, const void *datap_b
) {
474 const adns_rr_hostaddr
*ap
= datap_a
, *bp
= datap_b
;
476 return dip_hostaddr(ap
,bp
);
479 static void mfp_hostaddr(adns_query qu
, adns_rr_hostaddr
*rrp
) {
482 adns__makefinal_str(qu
,&rrp
->host
);
484 adns__makefinal_block(qu
, &tablev
, rrp
->naddrs
*sizeof(*rrp
->addrs
));
488 static void mf_hostaddr(adns_query qu
, void *datap
) {
489 adns_rr_hostaddr
*rrp
= datap
;
491 mfp_hostaddr(qu
,rrp
);
494 static adns_status
csp_hostaddr(vbuf
*vb
, const adns_rr_hostaddr
*rrp
) {
499 st
= csp_qstring(vb
,rrp
->host
); if (st
) return st
;
503 CSP_ADDSTR(adns_strerror(rrp
->astatus
));
505 assert(rrp
->naddrs
> 0);
506 for (i
=0, to_add
= ": "; i
<rrp
->naddrs
; i
++, to_add
= ", ") {
508 st
= csp_addr(vb
,&rrp
->addrs
[i
]);
514 static adns_status
cs_hostaddr(vbuf
*vb
, const void *datap
) {
515 const adns_rr_hostaddr
*rrp
= datap
;
517 return csp_hostaddr(vb
,rrp
);
524 static adns_status
pa_mx_raw(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
525 const byte
*dgram
= pai
->dgram
;
526 adns_rr_intstr
*rrp
= datap
;
530 if (cbyte
+2 > max
) return adns_s_invaliddata
;
533 st
= pap_domain(pai
, &cbyte
, max
, &rrp
->str
,
534 pai
->qu
->flags
& adns_qf_quoteok_anshost ? pdf_quoteok
: 0);
537 if (cbyte
!= max
) return adns_s_invaliddata
;
541 static int di_mx_raw(const void *datap_a
, const void *datap_b
) {
542 const adns_rr_intstr
*ap
= datap_a
, *bp
= datap_b
;
544 if (ap
->i
< bp
->i
) return 0;
545 if (ap
->i
> bp
->i
) return 1;
553 static adns_status
pa_mx(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
554 const byte
*dgram
= pai
->dgram
;
555 adns_rr_inthostaddr
*rrp
= datap
;
559 if (cbyte
+2 > max
) return adns_s_invaliddata
;
562 st
= pap_hostaddr(pai
, &cbyte
, max
, &rrp
->ha
);
565 if (cbyte
!= max
) return adns_s_invaliddata
;
569 static int di_mx(const void *datap_a
, const void *datap_b
) {
570 const adns_rr_inthostaddr
*ap
= datap_a
, *bp
= datap_b
;
572 if (ap
->i
< bp
->i
) return 0;
573 if (ap
->i
> bp
->i
) return 1;
574 return dip_hostaddr(&ap
->ha
,&bp
->ha
);
578 * _inthostaddr (mf,cs)
581 static void mf_inthostaddr(adns_query qu
, void *datap
) {
582 adns_rr_inthostaddr
*rrp
= datap
;
584 mfp_hostaddr(qu
,&rrp
->ha
);
587 static adns_status
cs_inthostaddr(vbuf
*vb
, const void *datap
) {
588 const adns_rr_inthostaddr
*rrp
= datap
;
591 sprintf(buf
,"%u ",rrp
->i
);
594 return csp_hostaddr(vb
,&rrp
->ha
);
598 * _ptr (pa, +icb_ptr)
601 static void icb_ptr(adns_query parent
, adns_query child
) {
602 adns_answer
*cans
= child
->answer
;
603 const adns_rr_addr
*queried
, *found
;
606 if (cans
->status
== adns_s_nxdomain
|| cans
->status
== adns_s_nodata
) {
607 adns__query_fail(parent
,adns_s_inconsistent
);
609 } else if (cans
->status
) {
610 adns__query_fail(parent
,cans
->status
);
614 queried
= &parent
->ctx
.info
.ptr_parent_addr
;
615 for (i
=0, found
=cans
->rrs
.addr
; i
<cans
->nrrs
; i
++, found
++) {
616 if (queried
->len
== found
->len
&&
617 !memcmp(&queried
->addr
,&found
->addr
,queried
->len
)) {
618 if (!parent
->children
.head
) adns__query_done(parent
);
623 adns__query_fail(parent
,adns_s_inconsistent
);
626 static adns_status
pa_ptr(const parseinfo
*pai
, int dmstart
, int max
, void *datap
) {
627 static const char *(expectdomain
[])= { DNS_INADDR_ARPA
};
636 int cbyte
, i
, lablen
, labstart
, l
, id
;
641 st
= pap_domain(pai
, &cbyte
, max
, rrp
,
642 pai
->qu
->flags
& adns_qf_quoteok_anshost ? pdf_quoteok
: 0);
644 if (cbyte
!= max
) return adns_s_invaliddata
;
646 ap
= &pai
->qu
->ctx
.info
.ptr_parent_addr
;
648 adns__findlabel_start(&fls
, pai
->ads
, -1, pai
->qu
,
649 pai
->qu
->query_dgram
, pai
->qu
->query_dglen
,
650 pai
->qu
->query_dglen
, DNS_HDRSIZE
, 0);
651 for (i
=0; i
<4; i
++) {
652 st
= adns__findlabel_next(&fls
,&lablen
,&labstart
); assert(!st
);
653 if (lablen
<=0 || lablen
>3) return adns_s_querydomainwrong
;
654 memcpy(labbuf
, pai
->qu
->query_dgram
+ labstart
, lablen
); labbuf
[lablen
]= 0;
655 ipv
[3-i
]= strtoul(labbuf
,&ep
,10); if (*ep
) return adns_s_querydomainwrong
;
656 if (lablen
>1 && pai
->qu
->query_dgram
[labstart
]=='0')
657 return adns_s_querydomainwrong
;
659 for (i
=0; i
<sizeof(expectdomain
)/sizeof(*expectdomain
); i
++) {
660 st
= adns__findlabel_next(&fls
,&lablen
,&labstart
); assert(!st
);
661 l
= strlen(expectdomain
[i
]);
662 if (lablen
!= l
|| memcmp(pai
->qu
->query_dgram
+ labstart
, expectdomain
[i
], l
))
663 return adns_s_querydomainwrong
;
665 st
= adns__findlabel_next(&fls
,&lablen
,0); assert(!st
);
666 if (lablen
) return adns_s_querydomainwrong
;
668 ap
->len
= sizeof(struct sockaddr_in
);
669 memset(&ap
->addr
,0,sizeof(ap
->addr
.inet
));
670 ap
->addr
.inet
.sin_family
= AF_INET
;
671 ap
->addr
.inet
.sin_addr
.s_addr
=
672 htonl((ipv
[0]<<24) | (ipv
[1]<<16) | (ipv
[2]<<8) | (ipv
[3]));
675 st
= adns__mkquery_frdgram(pai
->ads
, &pai
->qu
->vb
, &id
,
676 pai
->dgram
, pai
->dglen
, dmstart
,
677 adns_r_addr
, adns_qf_quoteok_query
);
681 ctx
.callback
= icb_ptr
;
682 memset(&ctx
.info
,0,sizeof(ctx
.info
));
683 st
= adns__internal_submit(pai
->ads
, &nqu
, adns__findtype(adns_r_addr
),
685 adns_qf_quoteok_query
, pai
->now
, 0, &ctx
);
688 nqu
->parent
= pai
->qu
;
689 LIST_LINK_TAIL_PART(pai
->qu
->children
,nqu
,siblings
.);
698 static void mf_strpair(adns_query qu
, void *datap
) {
699 adns_rr_strpair
*rrp
= datap
;
701 adns__makefinal_str(qu
,&rrp
->array
[0]);
702 adns__makefinal_str(qu
,&rrp
->array
[1]);
705 static adns_status
cs_strpair(vbuf
*vb
, const void *datap
) {
706 const adns_rr_strpair
*rrp
= datap
;
709 st
= csp_qstring(vb
,rrp
->array
[0]); if (st
) return st
;
711 st
= csp_qstring(vb
,rrp
->array
[1]); if (st
) return st
;
717 * _intstrpair (mf,cs)
720 static void mf_intstrpair(adns_query qu
, void *datap
) {
721 adns_rr_intstrpair
*rrp
= datap
;
723 adns__makefinal_str(qu
,&rrp
->array
[0].str
);
724 adns__makefinal_str(qu
,&rrp
->array
[1].str
);
727 static adns_status
cs_intstrpair(vbuf
*vb
, const void *datap
) {
728 const adns_rr_intstrpair
*rrp
= datap
;
731 st
= csp_intstr(vb
,&rrp
->array
[0]); if (st
) return st
;
733 st
= csp_intstr(vb
,&rrp
->array
[1]); if (st
) return st
;
742 static adns_status
pa_hinfo(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
743 adns_rr_intstrpair
*rrp
= datap
;
747 for (i
=0; i
<2; i
++) {
748 st
= pap_string(pai
, &cbyte
, max
, &rrp
->array
[i
].i
, &rrp
->array
[i
].str
);
752 if (cbyte
!= max
) return adns_s_invaliddata
;
761 static adns_status
pap_mailbox(const parseinfo
*pai
, int *cbyte_io
, int max
,
763 return pap_domain(pai
, cbyte_io
, max
, mb_r
, pdf_quoteok
);
764 /* fixme: mailbox quoting */
771 static adns_status
pa_rp(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
772 adns_rr_strpair
*rrp
= datap
;
775 st
= pap_mailbox(pai
, &cbyte
, max
, &rrp
->array
[0]);
778 st
= pap_domain(pai
, &cbyte
, max
, &rrp
->array
[1], pdf_quoteok
);
781 if (cbyte
!= max
) return adns_s_invaliddata
;
789 static adns_status
pa_soa(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
790 adns_rr_soa
*rrp
= datap
;
791 const byte
*dgram
= pai
->dgram
;
795 st
= pap_domain(pai
, &cbyte
, max
, &rrp
->mname
,
796 pai
->qu
->flags
& adns_qf_quoteok_anshost ? pdf_quoteok
: 0);
799 st
= pap_mailbox(pai
, &cbyte
, max
, &rrp
->rname
);
802 if (cbyte
+20 != max
) return adns_s_invaliddata
;
804 for (i
=0; i
<5; i
++) {
807 (&rrp
->serial
)[i
]= (msw
<<16) | lsw
;
813 static void mf_soa(adns_query qu
, void *datap
) {
814 adns_rr_soa
*rrp
= datap
;
816 adns__makefinal_str(qu
,&rrp
->mname
);
817 adns__makefinal_str(qu
,&rrp
->rname
);
820 static adns_status
cs_soa(vbuf
*vb
, const void *datap
) {
821 const adns_rr_soa
*rrp
= datap
;
826 st
= csp_qstring(vb
,rrp
->mname
); if (st
) return st
;
828 st
= csp_qstring(vb
,rrp
->rname
); if (st
) return st
;
830 for (i
=0; i
<5; i
++) {
831 sprintf(buf
," %lu",(&rrp
->serial
)[i
]);
842 static void mf_flat(adns_query qu
, void *data
) { }
848 #define TYPESZ_M(member) (sizeof(*((adns_answer*)0)->rrs.member))
850 #define DEEP_MEMB(memb) TYPESZ_M(memb), mf_##memb, cs_##memb
851 #define FLAT_MEMB(memb) TYPESZ_M(memb), mf_flat, cs_##memb
853 #define DEEP_TYPE(code,rrt,fmt,memb,parser,comparer) \
854 { adns_r_##code, rrt, fmt, TYPESZ_M(memb), mf_##memb, cs_##memb, parser, comparer }
855 #define FLAT_TYPE(code,rrt,fmt,memb,parser,comparer) \
856 { adns_r_##code, rrt, fmt, TYPESZ_M(memb), mf_flat, cs_##memb, parser, comparer }
858 static const typeinfo typeinfos
[] = {
859 /* Must be in ascending order of rrtype ! */
860 /* mem-mgmt code rrt fmt member parser comparer */
862 FLAT_TYPE(a
, "A", 0, inaddr
, pa_inaddr
, di_inaddr
),
863 DEEP_TYPE(ns_raw
, "NS", "raw", str
, pa_host_raw
, 0 ),
864 DEEP_TYPE(cname
, "CNAME", 0, str
, pa_host_raw
, 0 ),
865 DEEP_TYPE(soa_raw
, "SOA", "raw", soa
, pa_soa
, 0 ),
866 DEEP_TYPE(ptr_raw
, "PTR", "raw", str
, pa_host_raw
, 0 ),
867 DEEP_TYPE(hinfo
, "HINFO", 0, intstrpair
, pa_hinfo
, 0 ),
868 DEEP_TYPE(mx_raw
, "MX", "raw", intstr
, pa_mx_raw
, di_mx_raw
),
869 DEEP_TYPE(txt
, "TXT", 0, manyistr
, pa_txt
, 0 ),
870 DEEP_TYPE(rp_raw
, "RP", "raw", strpair
, pa_rp
, 0 ),
872 FLAT_TYPE(addr
, "A", "addr", addr
, pa_addr
, di_addr
),
873 DEEP_TYPE(ns
, "NS", "+addr", hostaddr
, pa_hostaddr
, di_hostaddr
),
874 DEEP_TYPE(ptr
, "PTR","checked", str
, pa_ptr
, 0 ),
875 DEEP_TYPE(mx
, "MX", "+addr", inthostaddr
, pa_mx
, di_mx
),
877 DEEP_TYPE(soa
, "SOA","822", soa
, pa_soa
, 0 ),
878 DEEP_TYPE(rp
, "RP", "822", strpair
, pa_rp
, 0 ),
881 const typeinfo
*adns__findtype(adns_rrtype type
) {
882 const typeinfo
*begin
, *end
, *mid
;
884 begin
= typeinfos
; end
= typeinfos
+(sizeof(typeinfos
)/sizeof(typeinfo
));
886 while (begin
< end
) {
887 mid
= begin
+ ((end
-begin
)>>1);
888 if (mid
->type
== type
) return mid
;
889 if (type
> mid
->type
) begin
= mid
+1;