3 * - RR-type-specific code, and the machinery to call it
6 * This file is part of adns, which is Copyright (C) 1997-1999 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 search_sortlist(adns_state ads
, struct in_addr ad
) {
249 const struct sortlist
*slp
;
252 for (i
=0, slp
=ads
->sortlist
;
253 i
<ads
->nsortlist
&& !((ad
.s_addr
& slp
->mask
.s_addr
) == slp
->base
.s_addr
);
258 static int dip_inaddr(adns_state ads
, struct in_addr a
, struct in_addr b
) {
261 if (!ads
->nsortlist
) return 0;
263 ai
= search_sortlist(ads
,a
);
264 bi
= search_sortlist(ads
,b
);
268 static int di_inaddr(adns_state ads
, const void *datap_a
, const void *datap_b
) {
269 const struct in_addr
*ap
= datap_a
, *bp
= datap_b
;
271 return dip_inaddr(ads
,*ap
,*bp
);
274 static adns_status
cs_inaddr(vbuf
*vb
, const void *datap
) {
275 const struct in_addr
*rrp
= datap
, rr
= *rrp
;
278 ia
= inet_ntoa(rr
); assert(ia
);
284 * _inaddr6 (pa,dip,di)
287 static adns_status
pa_inaddr6(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
288 struct in_addr6
*storeto
= datap
;
290 if (max
-cbyte
!= 16) return adns_s_invaliddata
;
291 memcpy(storeto
, pai
->dgram
+ cbyte
, 16);
295 static int dip_inaddr6(adns_state ads
, struct in_addr a
, struct in_addr b
) {
299 static int di_inaddr6(adns_state ads
, const void *datap_a
, const void *datap_b
) {
300 const struct in_addr6
*ap
= datap_a
, *bp
= datap_b
;
302 return dip_inaddr6(ads
,*ap
,*bp
);
305 static adns_status
cs_inaddr6(vbuf
*vb
, const void *datap
) {
306 char buf
[INET6_ADDRSTRLEN
], *ia
;
308 ia
= inet_ntop(AF_INET6
,datap
,buf
,sizeof(buf
); assert(ia
);
314 * _addr (pa,di,csp,cs, iq,bg)
317 static adns_status
pa_addr(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
318 adns_rr_addr
*storeto
= datap
;
319 const byte
*dgram
= pai
->dgram
;
321 if (max
-cbyte
!= 4) return adns_s_invaliddata
;
322 storeto
->len
= sizeof(storeto
->addr
.inet
);
323 memset(&storeto
->addr
,0,sizeof(storeto
->addr
.inet
));
324 storeto
->addr
.inet
.sin_family
= AF_INET
;
325 memcpy(&storeto
->addr
.inet
.sin_addr
,dgram
+cbyte
,4);
329 static int di_addr(adns_state ads
, const void *datap_a
, const void *datap_b
) {
330 const adns_rr_addr
*ap
= datap_a
, *bp
= datap_b
;
332 switch (ap
->addr
.sa
.sa_family
) {
334 switch (bp
->addr
.sa
.sa_family
) {
336 return dip_inaddr6(ads
, ap
->addr
.inet6
.sin_addr
, bp
->addr
.inet6
.sin_addr
);
342 switch (bp
->addr
.sa
.sa_family
) {
344 return dip_inaddr(ads
, ap
->addr
.inet
.sin_addr
, bp
->addr
.inet
.sin_addr
);
353 static int div_addr(void *context
, const void *datap_a
, const void *datap_b
) {
354 const adns_state ads
= context
;
356 return di_addr(ads
, datap_a
, datap_b
);
359 static adns_status
csp_addr(vbuf
*vb
, const adns_rr_addr
*rrp
) {
361 static char buf
[INET6_ADDRSTRLEN
];
363 switch (rrp
->addr
.inet
.sin_family
) {
365 CSP_ADDSTR("AF_INET ");
366 ia
= inet_ntoa(rrp
->addr
.inet
.sin_addr
);
371 if (IN6_IS_ADDR_V4MAPPED(&rrp
->addr
.inet6
.sin6_addr
)) {
372 CSP_ADDSTR("IPv6-mapped-IPv4 ");
373 ia
= inet_ntoa(*(struct in_addr
*)(rrp
->addr
.inet6
.sin6_addr
.s6_addr
+12));
376 CSP_ADDSTR("AF_INET6 ");
377 ia
= inet_ntop(AF_INET6
,&rrp
->addr
.inet
.sin6_addr
,buf
,sizeof(buf
));
383 sprintf(buf
,"AF=%u",rrp
->addr
.sa
.sa_family
);
390 static adns_status
cs_addr(vbuf
*vb
, const void *datap
) {
391 const adns_rr_addr
*rrp
= datap
;
393 return csp_addr(vb
,rrp
);
396 static int iq_addr(adns_state ads
, adns_queryflags flags
) {
397 if (~flags
& (adns__iqaf_only
|adns__iqaf_weakv6
)) {
404 static adns_status
bg_addr(adns_state ads
, adns_query qu
, struct timeval now
) {
407 if (!((flags
^adns__iqaf_weakv6
) & (adns__iqaf_weakv6
|adns__iqaf_only
))) {
409 ctx
.callback
= icb_addr4
;
411 st
= adns__subquery(ads
, qu
, qu
->vb
,
412 qu
->query_dgram
, query_dglen
, DNS_HDRSIZE
,
413 adns_rr_a
, qu
->flags
, now
, &ctx
);
416 adns__query_udp(qu
,now
);
425 static adns_status
pap_domain(const parseinfo
*pai
, int *cbyte_io
, int max
,
426 char **domain_r
, parsedomain_flags flags
) {
430 st
= adns__parse_domain(pai
->qu
->ads
, pai
->serv
, pai
->qu
, &pai
->qu
->vb
, flags
,
431 pai
->dgram
,pai
->dglen
, cbyte_io
, max
);
433 if (!pai
->qu
->vb
.used
) return adns_s_invaliddata
;
435 dm
= adns__alloc_interim(pai
->qu
, pai
->qu
->vb
.used
+1);
438 dm
[pai
->qu
->vb
.used
]= 0;
439 memcpy(dm
,pai
->qu
->vb
.buf
,pai
->qu
->vb
.used
);
449 static adns_status
pa_host_raw(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
453 st
= pap_domain(pai
, &cbyte
, max
, rrp
,
454 pai
->qu
->flags
& adns_qf_quoteok_anshost ? pdf_quoteok
: 0);
457 if (cbyte
!= max
) return adns_s_invaliddata
;
462 * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +icb_hostaddr, pap_findaddrs)
465 static adns_status
pap_findaddrs(const parseinfo
*pai
, adns_rr_hostaddr
*ha
,
466 int *cbyte_io
, int count
, int dmstart
) {
468 int type
, class, rdlen
, rdstart
, ownermatched
;
471 for (rri
=0, naddrs
=-1; rri
<count
; rri
++) {
472 st
= adns__findrr_anychk(pai
->qu
, pai
->serv
, pai
->dgram
, pai
->dglen
, cbyte_io
,
473 &type
, &class, &rdlen
, &rdstart
,
474 pai
->dgram
, pai
->dglen
, dmstart
, &ownermatched
);
476 if (!ownermatched
|| class != DNS_CLASS_IN
|| type
!= adns_r_a
) {
477 if (naddrs
>0) break; else continue;
482 if (!adns__vbuf_ensure(&pai
->qu
->vb
, (naddrs
+1)*sizeof(adns_rr_addr
))) R_NOMEM
;
483 st
= pa_addr(pai
, rdstart
,rdstart
+rdlen
,
484 pai
->qu
->vb
.buf
+ naddrs
*sizeof(adns_rr_addr
));
489 ha
->addrs
= adns__alloc_interim(pai
->qu
, naddrs
*sizeof(adns_rr_addr
));
490 if (!ha
->addrs
) R_NOMEM
;
491 memcpy(ha
->addrs
, pai
->qu
->vb
.buf
, naddrs
*sizeof(adns_rr_addr
));
493 ha
->astatus
= adns_s_ok
;
495 adns__isort(ha
->addrs
, naddrs
, sizeof(adns_rr_addr
), pai
->qu
->vb
.buf
,
501 static void icb_hostaddr(adns_query parent
, adns_query child
) {
502 adns_answer
*cans
= child
->answer
;
503 adns_rr_hostaddr
*rrp
= child
->ctx
.info
.hostaddr
;
505 rrp
->astatus
= cans
->status
;
506 rrp
->naddrs
= cans
->nrrs
;
507 rrp
->addrs
= cans
->rrs
.addr
;
508 adns__transfer_interim(child
, parent
, rrp
->addrs
, rrp
->naddrs
*sizeof(adns_rr_addr
));
510 if (!parent
->children
.head
) adns__query_done(parent
);
513 static adns_status
pap_hostaddr(const parseinfo
*pai
, int *cbyte_io
,
514 int max
, adns_rr_hostaddr
*rrp
) {
517 adns_queryflags nflags
;
520 dmstart
= cbyte
= *cbyte_io
;
521 st
= pap_domain(pai
, &cbyte
, max
, &rrp
->host
,
522 pai
->qu
->flags
& adns_qf_quoteok_anshost ? pdf_quoteok
: 0);
526 rrp
->astatus
= adns_s_ok
;
532 st
= pap_findaddrs(pai
, rrp
, &cbyte
, pai
->nscount
, dmstart
);
534 if (rrp
->naddrs
!= -1) return adns_s_ok
;
536 st
= pap_findaddrs(pai
, rrp
, &cbyte
, pai
->arcount
, dmstart
);
538 if (rrp
->naddrs
!= -1) return adns_s_ok
;
540 nflags
= adns_qf_quoteok_query
;
541 if (!(pai
->qu
->flags
& adns_qf_cname_loose
)) nflags
|= adns_qf_cname_forbid
;
544 ctx
.callback
= icb_hostaddr
;
545 ctx
.info
.hostaddr
= rrp
;
547 st
= adns__subquery(pai
->ads
, pai
->qu
, pai
->qu
->vb
,
548 pai
->dgram
, pai
->dglen
, dmstart
,
549 adns_r_addr
, nflags
, now
, &ctx
);
555 static adns_status
pa_hostaddr(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
556 adns_rr_hostaddr
*rrp
= datap
;
559 st
= pap_hostaddr(pai
, &cbyte
, max
, rrp
);
561 if (cbyte
!= max
) return adns_s_invaliddata
;
566 static int dip_hostaddr(adns_state ads
, const adns_rr_hostaddr
*ap
, const adns_rr_hostaddr
*bp
) {
567 if (ap
->astatus
!= bp
->astatus
) return ap
->astatus
;
568 if (ap
->astatus
) return 0;
570 assert(ap
->addrs
[0].addr
.sa
.sa_family
== AF_INET
);
571 assert(bp
->addrs
[0].addr
.sa
.sa_family
== AF_INET
);
572 return dip_inaddr(ads
,
573 ap
->addrs
[0].addr
.inet
.sin_addr
,
574 bp
->addrs
[0].addr
.inet
.sin_addr
);
577 static int di_hostaddr(adns_state ads
, const void *datap_a
, const void *datap_b
) {
578 const adns_rr_hostaddr
*ap
= datap_a
, *bp
= datap_b
;
580 return dip_hostaddr(ads
, ap
,bp
);
583 static void mfp_hostaddr(adns_query qu
, adns_rr_hostaddr
*rrp
) {
586 adns__makefinal_str(qu
,&rrp
->host
);
588 adns__makefinal_block(qu
, &tablev
, rrp
->naddrs
*sizeof(*rrp
->addrs
));
592 static void mf_hostaddr(adns_query qu
, void *datap
) {
593 adns_rr_hostaddr
*rrp
= datap
;
595 mfp_hostaddr(qu
,rrp
);
598 static adns_status
csp_hostaddr(vbuf
*vb
, const adns_rr_hostaddr
*rrp
) {
603 st
= csp_qstring(vb
,rrp
->host
); if (st
) return st
;
607 CSP_ADDSTR(adns_strerror(rrp
->astatus
));
609 assert(rrp
->naddrs
> 0);
610 for (i
=0, to_add
= ": "; i
<rrp
->naddrs
; i
++, to_add
= ", ") {
612 st
= csp_addr(vb
,&rrp
->addrs
[i
]);
618 static adns_status
cs_hostaddr(vbuf
*vb
, const void *datap
) {
619 const adns_rr_hostaddr
*rrp
= datap
;
621 return csp_hostaddr(vb
,rrp
);
628 static adns_status
pa_mx_raw(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
629 const byte
*dgram
= pai
->dgram
;
630 adns_rr_intstr
*rrp
= datap
;
634 if (cbyte
+2 > max
) return adns_s_invaliddata
;
637 st
= pap_domain(pai
, &cbyte
, max
, &rrp
->str
,
638 pai
->qu
->flags
& adns_qf_quoteok_anshost ? pdf_quoteok
: 0);
641 if (cbyte
!= max
) return adns_s_invaliddata
;
645 static int di_mx_raw(adns_state ads
, const void *datap_a
, const void *datap_b
) {
646 const adns_rr_intstr
*ap
= datap_a
, *bp
= datap_b
;
648 if (ap
->i
< bp
->i
) return 0;
649 if (ap
->i
> bp
->i
) return 1;
657 static adns_status
pa_mx(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
658 const byte
*dgram
= pai
->dgram
;
659 adns_rr_inthostaddr
*rrp
= datap
;
663 if (cbyte
+2 > max
) return adns_s_invaliddata
;
666 st
= pap_hostaddr(pai
, &cbyte
, max
, &rrp
->ha
);
669 if (cbyte
!= max
) return adns_s_invaliddata
;
673 static int di_mx(adns_state ads
, const void *datap_a
, const void *datap_b
) {
674 const adns_rr_inthostaddr
*ap
= datap_a
, *bp
= datap_b
;
676 if (ap
->i
< bp
->i
) return 0;
677 if (ap
->i
> bp
->i
) return 1;
678 return dip_hostaddr(ads
, &ap
->ha
, &bp
->ha
);
682 * _inthostaddr (mf,cs)
685 static void mf_inthostaddr(adns_query qu
, void *datap
) {
686 adns_rr_inthostaddr
*rrp
= datap
;
688 mfp_hostaddr(qu
,&rrp
->ha
);
691 static adns_status
cs_inthostaddr(vbuf
*vb
, const void *datap
) {
692 const adns_rr_inthostaddr
*rrp
= datap
;
695 sprintf(buf
,"%u ",rrp
->i
);
698 return csp_hostaddr(vb
,&rrp
->ha
);
702 * _ptr (pa, +icb_ptr)
705 static void icb_ptr(adns_query parent
, adns_query child
) {
706 adns_answer
*cans
= child
->answer
;
707 const adns_rr_addr
*queried
, *found
;
710 if (cans
->status
== adns_s_nxdomain
|| cans
->status
== adns_s_nodata
) {
711 adns__query_fail(parent
,adns_s_inconsistent
);
713 } else if (cans
->status
) {
714 adns__query_fail(parent
,cans
->status
);
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
)) {
722 if (!parent
->children
.head
) adns__query_done(parent
);
727 adns__query_fail(parent
,adns_s_inconsistent
);
730 static adns_status
pa_ptr(const parseinfo
*pai
, int dmstart
, int max
, void *datap
) {
731 static const char *(expectdomain
[])= { DNS_INADDR_ARPA
};
740 int cbyte
, i
, lablen
, labstart
, l
, id
;
745 st
= pap_domain(pai
, &cbyte
, max
, rrp
,
746 pai
->qu
->flags
& adns_qf_quoteok_anshost ? pdf_quoteok
: 0);
748 if (cbyte
!= max
) return adns_s_invaliddata
;
750 ap
= &pai
->qu
->ctx
.info
.ptr_parent_addr
;
752 adns__findlabel_start(&fls
, pai
->ads
, -1, pai
->qu
,
753 pai
->qu
->query_dgram
, pai
->qu
->query_dglen
,
754 pai
->qu
->query_dglen
, DNS_HDRSIZE
, 0);
755 for (i
=0; i
<4; i
++) {
756 st
= adns__findlabel_next(&fls
,&lablen
,&labstart
); assert(!st
);
757 if (lablen
<=0 || lablen
>3) return adns_s_querydomainwrong
;
758 memcpy(labbuf
, pai
->qu
->query_dgram
+ labstart
, lablen
); labbuf
[lablen
]= 0;
759 ipv
[3-i
]= strtoul(labbuf
,&ep
,10); if (*ep
) return adns_s_querydomainwrong
;
760 if (lablen
>1 && pai
->qu
->query_dgram
[labstart
]=='0')
761 return adns_s_querydomainwrong
;
763 for (i
=0; i
<sizeof(expectdomain
)/sizeof(*expectdomain
); i
++) {
764 st
= adns__findlabel_next(&fls
,&lablen
,&labstart
); assert(!st
);
765 l
= strlen(expectdomain
[i
]);
766 if (lablen
!= l
|| memcmp(pai
->qu
->query_dgram
+ labstart
, expectdomain
[i
], l
))
767 return adns_s_querydomainwrong
;
769 st
= adns__findlabel_next(&fls
,&lablen
,0); assert(!st
);
770 if (lablen
) return adns_s_querydomainwrong
;
772 ap
->len
= sizeof(struct sockaddr_in
);
773 memset(&ap
->addr
,0,sizeof(ap
->addr
.inet
));
774 ap
->addr
.inet
.sin_family
= AF_INET
;
775 ap
->addr
.inet
.sin_addr
.s_addr
=
776 htonl((ipv
[0]<<24) | (ipv
[1]<<16) | (ipv
[2]<<8) | (ipv
[3]));
779 st
= adns__mkquery_frdgram(pai
->ads
, &pai
->qu
->vb
, &id
,
780 pai
->dgram
, pai
->dglen
, dmstart
,
781 adns_r_addr
, adns_qf_quoteok_query
);
785 ctx
.callback
= icb_ptr
;
786 memset(&ctx
.info
,0,sizeof(ctx
.info
));
787 st
= adns__internal_submit(pai
->ads
, &nqu
, adns__findtype(adns_r_addr
),
789 adns_qf_quoteok_query
, pai
->now
, 0, &ctx
);
792 nqu
->parent
= pai
->qu
;
793 LIST_LINK_TAIL_PART(pai
->qu
->children
,nqu
,siblings
.);
802 static void mf_strpair(adns_query qu
, void *datap
) {
803 adns_rr_strpair
*rrp
= datap
;
805 adns__makefinal_str(qu
,&rrp
->array
[0]);
806 adns__makefinal_str(qu
,&rrp
->array
[1]);
809 static adns_status
cs_strpair(vbuf
*vb
, const void *datap
) {
810 const adns_rr_strpair
*rrp
= datap
;
813 st
= csp_qstring(vb
,rrp
->array
[0]); if (st
) return st
;
815 st
= csp_qstring(vb
,rrp
->array
[1]); if (st
) return st
;
821 * _intstrpair (mf,cs)
824 static void mf_intstrpair(adns_query qu
, void *datap
) {
825 adns_rr_intstrpair
*rrp
= datap
;
827 adns__makefinal_str(qu
,&rrp
->array
[0].str
);
828 adns__makefinal_str(qu
,&rrp
->array
[1].str
);
831 static adns_status
cs_intstrpair(vbuf
*vb
, const void *datap
) {
832 const adns_rr_intstrpair
*rrp
= datap
;
835 st
= csp_intstr(vb
,&rrp
->array
[0]); if (st
) return st
;
837 st
= csp_intstr(vb
,&rrp
->array
[1]); if (st
) return st
;
846 static adns_status
pa_hinfo(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
847 adns_rr_intstrpair
*rrp
= datap
;
851 for (i
=0; i
<2; i
++) {
852 st
= pap_string(pai
, &cbyte
, max
, &rrp
->array
[i
].i
, &rrp
->array
[i
].str
);
856 if (cbyte
!= max
) return adns_s_invaliddata
;
865 static adns_status
pap_mailbox(const parseinfo
*pai
, int *cbyte_io
, int max
,
867 return pap_domain(pai
, cbyte_io
, max
, mb_r
, pdf_quoteok
);
868 /* fixme: mailbox quoting */
875 static adns_status
pa_rp(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
876 adns_rr_strpair
*rrp
= datap
;
879 st
= pap_mailbox(pai
, &cbyte
, max
, &rrp
->array
[0]);
882 st
= pap_domain(pai
, &cbyte
, max
, &rrp
->array
[1], pdf_quoteok
);
885 if (cbyte
!= max
) return adns_s_invaliddata
;
893 static adns_status
pa_soa(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
894 adns_rr_soa
*rrp
= datap
;
895 const byte
*dgram
= pai
->dgram
;
899 st
= pap_domain(pai
, &cbyte
, max
, &rrp
->mname
,
900 pai
->qu
->flags
& adns_qf_quoteok_anshost ? pdf_quoteok
: 0);
903 st
= pap_mailbox(pai
, &cbyte
, max
, &rrp
->rname
);
906 if (cbyte
+20 != max
) return adns_s_invaliddata
;
908 for (i
=0; i
<5; i
++) {
911 (&rrp
->serial
)[i
]= (msw
<<16) | lsw
;
917 static void mf_soa(adns_query qu
, void *datap
) {
918 adns_rr_soa
*rrp
= datap
;
920 adns__makefinal_str(qu
,&rrp
->mname
);
921 adns__makefinal_str(qu
,&rrp
->rname
);
924 static adns_status
cs_soa(vbuf
*vb
, const void *datap
) {
925 const adns_rr_soa
*rrp
= datap
;
930 st
= csp_qstring(vb
,rrp
->mname
); if (st
) return st
;
932 st
= csp_qstring(vb
,rrp
->rname
); if (st
) return st
;
934 for (i
=0; i
<5; i
++) {
935 sprintf(buf
," %lu",(&rrp
->serial
)[i
]);
946 static void mf_flat(adns_query qu
, void *data
) { }
952 #define TYPESZ_M(member) (sizeof(*((adns_answer*)0)->rrs.member))
954 #define ANY_TYPE(code,rrt,fmt,memb,makefinal,parser,comparer, initqcode,begin) \
955 { adns_r_##code, rrt, fmt, TYPESZ_M(memb), makefinal, cs_##memb, parser, comparer, \
958 #define DEEP_TYPE(code,rrt,fmt,memb,parser,comparer) \
959 ANY_TYPE(code,rrt,fmt,memb, mf_##memb,parser,comparer, 0,0)
960 #define FLAT_TYPE(code,rrt,fmt,memb,parser,comparer) \
961 ANY_TYPE(code,rrt,fmt,memb, mf_flat,parser,comparer, 0,0)
963 #define DEEP_SPEC(code,rrt,fmt,memb,parser,comparer) \
964 ANY_TYPE(code,rrt,fmt,memb, mf_##memb,parser,comparer, iq_##memb,bg_##memb)
965 #define FLAT_SPEC(code,rrt,fmt,memb,parser,comparer) \
966 ANY_TYPE(code,rrt,fmt,memb, mf_flat,parser,comparer, iq_##memb,bg_##memb)
968 static const typeinfo typeinfos
[] = {
969 /* Must be in ascending order of code ! */
970 /* mem-mgmt code rrt fmt member parser comparer */
972 FLAT_TYPE(a
, "A", 0, inaddr
, pa_inaddr
, di_inaddr
),
973 DEEP_TYPE(ns_raw
, "NS", "raw", str
, pa_host_raw
, 0 ),
974 DEEP_TYPE(cname
, "CNAME", 0, str
, pa_host_raw
, 0 ),
975 DEEP_TYPE(soa_raw
, "SOA", "raw", soa
, pa_soa
, 0 ),
976 DEEP_TYPE(ptr_raw
, "PTR", "raw", str
, pa_host_raw
, 0 ),
977 DEEP_TYPE(hinfo
, "HINFO", 0, intstrpair
, pa_hinfo
, 0 ),
978 DEEP_TYPE(mx_raw
, "MX", "raw", intstr
, pa_mx_raw
, di_mx_raw
),
979 DEEP_TYPE(txt
, "TXT", 0, manyistr
, pa_txt
, 0 ),
980 DEEP_TYPE(rp_raw
, "RP", "raw", strpair
, pa_rp
, 0 ),
981 FLAT_TYPE(aaaa
, "AAAA", 0, inaddr6
, pa_inaddr6
, di_inaddr6
),
983 FLAT_SPEC(addr
, "addr", 0, addr
, pa_addr
, di_addr
),
984 DEEP_TYPE(ns
, "NS", "+addr", hostaddr
, pa_hostaddr
, di_hostaddr
),
985 DEEP_TYPE(ptr
, "PTR", "checked", str
, pa_ptr
, 0 ),
986 DEEP_TYPE(mx
, "MX", "+addr", inthostaddr
, pa_mx
, di_mx
),
988 DEEP_TYPE(soa
, "SOA", "822", soa
, pa_soa
, 0 ),
989 DEEP_TYPE(rp
, "RP", "822", strpair
, pa_rp
, 0 ),
992 const typeinfo
*adns__findtype(adns_rrtype type
) {
993 const typeinfo
*begin
, *end
, *mid
;
995 begin
= typeinfos
; end
= typeinfos
+(sizeof(typeinfos
)/sizeof(typeinfo
));
997 while (begin
< end
) {
998 mid
= begin
+ ((end
-begin
)>>1);
999 if (mid
->type
== type
) return mid
;
1000 if (type
> mid
->type
) begin
= mid
+1;