3 * - RR-type-specific code, and the machinery to call it
7 * Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
9 * It is part of adns, which is
10 * Copyright (C) 1997-2000 Ian Jackson <ian@davenant.greenend.org.uk>
11 * Copyright (C) 1999-2000 Tony Finch <dot@dotat.at>
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)
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.
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.
28 #ifdef ADNS_JGAA_WIN32
29 # include "adns_win32.h"
32 # include <sys/types.h>
33 # include <sys/socket.h>
34 # include <netinet/in.h>
35 # include <arpa/inet.h>
40 #define R_NOMEM return adns_s_nomemory
41 #define CSP_ADDSTR(s) do { if (!adns__vbuf_appendstr(vb,(s))) R_NOMEM; } while (0)
47 * _textdata, _qstring (csp)
53 * _addr (pa,di,csp,cs)
56 * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +pap_findaddrs)
59 * _inthostaddr (mf,cs)
64 * _mailbox (pap +pap_mailbox822)
69 * within each section:
84 static adns_status
pap_qstring(const parseinfo
*pai
, int *cbyte_io
, int max
,
85 int *len_r
, char **str_r
) {
86 /* Neither len_r nor str_r may be null.
87 * End of datagram (overrun) is indicated by returning adns_s_invaliddata;
89 const byte
*dgram
= pai
->dgram
;
95 if (cbyte
>= max
) return adns_s_invaliddata
;
97 if (cbyte
+l
> max
) return adns_s_invaliddata
;
99 str
= adns__alloc_interim(pai
->qu
, (size_t)l
+1);
103 memcpy(str
,dgram
+cbyte
,(size_t)l
);
112 static adns_status
csp_qstring(vbuf
*vb
, const char *dp
, int len
) {
118 for (cn
=0; cn
<len
; cn
++) {
122 } else if (ch
== '"') {
124 } else if (ch
>= 32 && ch
<= 126) {
125 if (!adns__vbuf_append(vb
,&ch
,1)) R_NOMEM
;
127 sprintf(buf
,"\\x%02x",ch
);
140 static void mf_str(adns_query qu
, void *datap
) {
143 adns__makefinal_str(qu
,rrp
);
150 static void mf_intstr(adns_query qu
, void *datap
) {
151 adns_rr_intstr
*rrp
= datap
;
153 adns__makefinal_str(qu
,&rrp
->str
);
160 static void mf_manyistr(adns_query qu
, void *datap
) {
161 adns_rr_intstr
**rrp
= datap
;
162 adns_rr_intstr
*te
, *table
;
166 for (tc
=0, te
= *rrp
; te
->i
>= 0; te
++, tc
++);
168 adns__makefinal_block(qu
,&tablev
,sizeof(*te
)*(tc
+1));
170 for (te
= *rrp
; te
->i
>= 0; te
++)
171 adns__makefinal_str(qu
,&te
->str
);
178 static adns_status
pa_txt(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
179 adns_rr_intstr
**rrp
= datap
, *table
, *te
;
180 const byte
*dgram
= pai
->dgram
;
181 int ti
, tc
, l
, startbyte
;
185 if (cbyte
>= max
) return adns_s_invaliddata
;
187 while (cbyte
< max
) {
192 if (cbyte
!= max
|| !tc
) return adns_s_invaliddata
;
194 table
= adns__alloc_interim(pai
->qu
,sizeof(*table
)*(tc
+1));
197 for (cbyte
=startbyte
, ti
=0, te
=table
; ti
<tc
; ti
++, te
++) {
198 st
= pap_qstring(pai
, &cbyte
, max
, &te
->i
, &te
->str
);
201 assert(cbyte
== max
);
210 static adns_status
cs_txt(vbuf
*vb
, const void *datap
) {
211 const adns_rr_intstr
*const *rrp
= datap
;
212 const adns_rr_intstr
*current
;
216 for (current
= *rrp
, spc
=0; current
->i
>= 0; current
++, spc
=1) {
217 if (spc
) CSP_ADDSTR(" ");
218 st
= csp_qstring(vb
,current
->str
,current
->i
); if (st
) return st
;
227 static adns_status
cs_hinfo(vbuf
*vb
, const void *datap
) {
228 const adns_rr_intstrpair
*rrp
= datap
;
231 st
= csp_qstring(vb
,rrp
->array
[0].str
,rrp
->array
[0].i
); if (st
) return st
;
233 st
= csp_qstring(vb
,rrp
->array
[1].str
,rrp
->array
[1].i
); if (st
) return st
;
238 * _inaddr (pa,dip,di)
241 static adns_status
pa_inaddr(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
242 struct in_addr
*storeto
= datap
;
244 if (max
-cbyte
!= 4) return adns_s_invaliddata
;
245 memcpy(storeto
, pai
->dgram
+ cbyte
, 4);
249 static int search_sortlist(adns_state ads
, struct in_addr ad
) {
250 const struct sortlist
*slp
;
253 for (i
=0, slp
=ads
->sortlist
;
254 i
<ads
->nsortlist
&& !((ad
.s_addr
& slp
->mask
.s_addr
) == slp
->base
.s_addr
);
259 static int dip_inaddr(adns_state ads
, struct in_addr a
, struct in_addr b
) {
262 if (!ads
->nsortlist
) return 0;
264 ai
= search_sortlist(ads
,a
);
265 bi
= search_sortlist(ads
,b
);
269 static int di_inaddr(adns_state ads
, const void *datap_a
, const void *datap_b
) {
270 const struct in_addr
*ap
= datap_a
, *bp
= datap_b
;
272 return dip_inaddr(ads
,*ap
,*bp
);
275 static adns_status
cs_inaddr(vbuf
*vb
, const void *datap
) {
276 const struct in_addr
*rrp
= datap
, rr
= *rrp
;
279 ia
= inet_ntoa(rr
); assert(ia
);
285 * _addr (pa,di,csp,cs)
288 static adns_status
pa_addr(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
289 adns_rr_addr
*storeto
= datap
;
290 const byte
*dgram
= pai
->dgram
;
292 if (max
-cbyte
!= 4) return adns_s_invaliddata
;
293 storeto
->len
= sizeof(storeto
->addr
.inet
);
294 memset(&storeto
->addr
,0,sizeof(storeto
->addr
.inet
));
295 storeto
->addr
.inet
.sin_family
= AF_INET
;
296 memcpy(&storeto
->addr
.inet
.sin_addr
,dgram
+cbyte
,4);
300 static int di_addr(adns_state ads
, const void *datap_a
, const void *datap_b
) {
301 const adns_rr_addr
*ap
= datap_a
, *bp
= datap_b
;
303 assert(ap
->addr
.sa
.sa_family
== AF_INET
);
304 return dip_inaddr(ads
, ap
->addr
.inet
.sin_addr
, bp
->addr
.inet
.sin_addr
);
307 static int div_addr(void *context
, const void *datap_a
, const void *datap_b
) {
308 const adns_state ads
= context
;
310 return di_addr(ads
, datap_a
, datap_b
);
313 static adns_status
csp_addr(vbuf
*vb
, const adns_rr_addr
*rrp
) {
317 switch (rrp
->addr
.inet
.sin_family
) {
320 ia
= inet_ntoa(rrp
->addr
.inet
.sin_addr
); assert(ia
);
324 sprintf(buf
,"AF=%u",rrp
->addr
.sa
.sa_family
);
331 static adns_status
cs_addr(vbuf
*vb
, const void *datap
) {
332 const adns_rr_addr
*rrp
= datap
;
334 return csp_addr(vb
,rrp
);
338 * _domain (pap,csp,cs)
342 static adns_status
pap_domain(const parseinfo
*pai
, int *cbyte_io
, int max
,
343 char **domain_r
, parsedomain_flags flags
) {
347 st
= adns__parse_domain(pai
->qu
->ads
, pai
->serv
, pai
->qu
, &pai
->qu
->vb
, flags
,
348 pai
->dgram
,pai
->dglen
, cbyte_io
, max
);
350 if (!pai
->qu
->vb
.used
) return adns_s_invaliddata
;
352 dm
= adns__alloc_interim(pai
->qu
, (size_t) pai
->qu
->vb
.used
+1);
355 dm
[pai
->qu
->vb
.used
]= 0;
356 memcpy(dm
,pai
->qu
->vb
.buf
, (size_t) pai
->qu
->vb
.used
);
362 static adns_status
csp_domain(vbuf
*vb
, const char *domain
) {
364 if (!*domain
) CSP_ADDSTR(".");
368 static adns_status
cs_domain(vbuf
*vb
, const void *datap
) {
369 const char *const *domainp
= datap
;
370 return csp_domain(vb
,*domainp
);
373 static adns_status
pa_dom_raw(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
377 st
= pap_domain(pai
, &cbyte
, max
, rrp
, pdf_quoteok
);
380 if (cbyte
!= max
) return adns_s_invaliddata
;
388 static adns_status
pa_host_raw(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
392 st
= pap_domain(pai
, &cbyte
, max
, rrp
,
393 pai
->qu
->flags
& adns_qf_quoteok_anshost
? pdf_quoteok
: 0);
396 if (cbyte
!= max
) return adns_s_invaliddata
;
401 * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +icb_hostaddr, pap_findaddrs)
404 static adns_status
pap_findaddrs(const parseinfo
*pai
, adns_rr_hostaddr
*ha
,
405 int *cbyte_io
, int count
, int dmstart
) {
407 int type
, class, rdlen
, rdstart
, ownermatched
;
411 for (rri
=0, naddrs
=-1; rri
<count
; rri
++) {
412 st
= adns__findrr_anychk(pai
->qu
, pai
->serv
, pai
->dgram
, pai
->dglen
, cbyte_io
,
413 &type
, &class, &ttl
, &rdlen
, &rdstart
,
414 pai
->dgram
, pai
->dglen
, dmstart
, &ownermatched
);
416 if (!ownermatched
|| class != DNS_CLASS_IN
|| type
!= adns_r_a
) {
417 if (naddrs
>0) break; else continue;
422 if (!adns__vbuf_ensure(&pai
->qu
->vb
, (int) ((naddrs
+1)*sizeof(adns_rr_addr
)))) R_NOMEM
;
423 adns__update_expires(pai
->qu
,ttl
,pai
->now
);
424 st
= pa_addr(pai
, rdstart
,rdstart
+rdlen
,
425 pai
->qu
->vb
.buf
+ naddrs
*sizeof(adns_rr_addr
));
430 ha
->addrs
= adns__alloc_interim(pai
->qu
, naddrs
*sizeof(adns_rr_addr
));
431 if (!ha
->addrs
) R_NOMEM
;
432 memcpy(ha
->addrs
, pai
->qu
->vb
.buf
, naddrs
*sizeof(adns_rr_addr
));
434 ha
->astatus
= adns_s_ok
;
436 adns__isort(ha
->addrs
, naddrs
, sizeof(adns_rr_addr
), pai
->qu
->vb
.buf
,
442 static void icb_hostaddr(adns_query parent
, adns_query child
) {
443 adns_answer
*cans
= child
->answer
;
444 adns_rr_hostaddr
*rrp
= child
->ctx
.info
.hostaddr
;
445 adns_state ads
= parent
->ads
;
450 rrp
->naddrs
= (st
>0 && st
<=adns_s_max_tempfail
) ? -1 : cans
->nrrs
;
451 rrp
->addrs
= cans
->rrs
.addr
;
452 adns__transfer_interim(child
, parent
, rrp
->addrs
, rrp
->naddrs
*sizeof(adns_rr_addr
));
454 if (parent
->children
.head
) {
455 LIST_LINK_TAIL(ads
->childw
,parent
);
457 adns__query_done(parent
);
461 static adns_status
pap_hostaddr(const parseinfo
*pai
, int *cbyte_io
,
462 int max
, adns_rr_hostaddr
*rrp
) {
468 adns_queryflags nflags
;
470 dmstart
= cbyte
= *cbyte_io
;
471 st
= pap_domain(pai
, &cbyte
, max
, &rrp
->host
,
472 pai
->qu
->flags
& adns_qf_quoteok_anshost
? pdf_quoteok
: 0);
476 rrp
->astatus
= adns_s_ok
;
482 st
= pap_findaddrs(pai
, rrp
, &cbyte
, pai
->nscount
, dmstart
);
484 if (rrp
->naddrs
!= -1) return adns_s_ok
;
486 st
= pap_findaddrs(pai
, rrp
, &cbyte
, pai
->arcount
, dmstart
);
488 if (rrp
->naddrs
!= -1) return adns_s_ok
;
490 st
= adns__mkquery_frdgram(pai
->ads
, &pai
->qu
->vb
, &id
,
491 pai
->dgram
, pai
->dglen
, dmstart
,
492 adns_r_addr
, adns_qf_quoteok_query
);
496 ctx
.callback
= icb_hostaddr
;
497 ctx
.info
.hostaddr
= rrp
;
499 nflags
= adns_qf_quoteok_query
;
500 if (!(pai
->qu
->flags
& adns_qf_cname_loose
)) nflags
|= adns_qf_cname_forbid
;
502 st
= adns__internal_submit(pai
->ads
, &nqu
, adns__findtype(adns_r_addr
),
503 &pai
->qu
->vb
, id
, nflags
, pai
->now
, &ctx
);
506 nqu
->parent
= pai
->qu
;
507 LIST_LINK_TAIL_PART(pai
->qu
->children
,nqu
,siblings
.);
512 static adns_status
pa_hostaddr(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
513 adns_rr_hostaddr
*rrp
= datap
;
516 st
= pap_hostaddr(pai
, &cbyte
, max
, rrp
);
518 if (cbyte
!= max
) return adns_s_invaliddata
;
523 static int dip_hostaddr(adns_state ads
, const adns_rr_hostaddr
*ap
, const adns_rr_hostaddr
*bp
) {
524 if (ap
->astatus
!= bp
->astatus
) return ap
->astatus
;
525 if (ap
->astatus
) return 0;
527 assert(ap
->addrs
[0].addr
.sa
.sa_family
== AF_INET
);
528 assert(bp
->addrs
[0].addr
.sa
.sa_family
== AF_INET
);
529 return dip_inaddr(ads
,
530 ap
->addrs
[0].addr
.inet
.sin_addr
,
531 bp
->addrs
[0].addr
.inet
.sin_addr
);
534 static int di_hostaddr(adns_state ads
, const void *datap_a
, const void *datap_b
) {
535 const adns_rr_hostaddr
*ap
= datap_a
, *bp
= datap_b
;
537 return dip_hostaddr(ads
, ap
,bp
);
540 static void mfp_hostaddr(adns_query qu
, adns_rr_hostaddr
*rrp
) {
543 adns__makefinal_str(qu
,&rrp
->host
);
545 adns__makefinal_block(qu
, &tablev
, rrp
->naddrs
*sizeof(*rrp
->addrs
));
549 static void mf_hostaddr(adns_query qu
, void *datap
) {
550 adns_rr_hostaddr
*rrp
= datap
;
552 mfp_hostaddr(qu
,rrp
);
555 static adns_status
csp_hostaddr(vbuf
*vb
, const adns_rr_hostaddr
*rrp
) {
561 st
= csp_domain(vb
,rrp
->host
); if (st
) return st
;
564 CSP_ADDSTR(adns_errtypeabbrev(rrp
->astatus
));
566 sprintf(buf
," %d ",rrp
->astatus
);
569 CSP_ADDSTR(adns_errabbrev(rrp
->astatus
));
572 errstr
= adns_strerror(rrp
->astatus
);
573 st
= csp_qstring(vb
,errstr
,(int)strlen(errstr
)); if (st
) return st
;
575 if (rrp
->naddrs
>= 0) {
577 for (i
=0; i
<rrp
->naddrs
; i
++) {
579 st
= csp_addr(vb
,&rrp
->addrs
[i
]);
588 static adns_status
cs_hostaddr(vbuf
*vb
, const void *datap
) {
589 const adns_rr_hostaddr
*rrp
= datap
;
591 return csp_hostaddr(vb
,rrp
);
598 static adns_status
pa_mx_raw(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
599 const byte
*dgram
= pai
->dgram
;
600 adns_rr_intstr
*rrp
= datap
;
604 if (cbyte
+2 > max
) return adns_s_invaliddata
;
607 st
= pap_domain(pai
, &cbyte
, max
, &rrp
->str
,
608 pai
->qu
->flags
& adns_qf_quoteok_anshost
? pdf_quoteok
: 0);
611 if (cbyte
!= max
) return adns_s_invaliddata
;
615 static int di_mx_raw(adns_state ads
, const void *datap_a
, const void *datap_b
) {
616 const adns_rr_intstr
*ap
= datap_a
, *bp
= datap_b
;
618 if (ap
->i
< bp
->i
) return 0;
619 if (ap
->i
> bp
->i
) return 1;
627 static adns_status
pa_mx(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
628 const byte
*dgram
= pai
->dgram
;
629 adns_rr_inthostaddr
*rrp
= datap
;
633 if (cbyte
+2 > max
) return adns_s_invaliddata
;
636 st
= pap_hostaddr(pai
, &cbyte
, max
, &rrp
->ha
);
639 if (cbyte
!= max
) return adns_s_invaliddata
;
643 static int di_mx(adns_state ads
, const void *datap_a
, const void *datap_b
) {
644 const adns_rr_inthostaddr
*ap
= datap_a
, *bp
= datap_b
;
646 if (ap
->i
< bp
->i
) return 0;
647 if (ap
->i
> bp
->i
) return 1;
648 return dip_hostaddr(ads
, &ap
->ha
, &bp
->ha
);
652 * _inthostaddr (mf,cs)
655 static void mf_inthostaddr(adns_query qu
, void *datap
) {
656 adns_rr_inthostaddr
*rrp
= datap
;
658 mfp_hostaddr(qu
,&rrp
->ha
);
661 static adns_status
cs_inthostaddr(vbuf
*vb
, const void *datap
) {
662 const adns_rr_inthostaddr
*rrp
= datap
;
665 sprintf(buf
,"%u ",rrp
->i
);
668 return csp_hostaddr(vb
,&rrp
->ha
);
675 static adns_status
cs_inthost(vbuf
*vb
, const void *datap
) {
676 const adns_rr_intstr
*rrp
= datap
;
679 sprintf(buf
,"%u ",rrp
->i
);
681 return csp_domain(vb
,rrp
->str
);
685 * _ptr (pa, +icb_ptr)
688 static void icb_ptr(adns_query parent
, adns_query child
) {
689 adns_answer
*cans
= child
->answer
;
690 const adns_rr_addr
*queried
, *found
;
691 adns_state ads
= parent
->ads
;
694 if (cans
->status
== adns_s_nxdomain
|| cans
->status
== adns_s_nodata
) {
695 adns__query_fail(parent
,adns_s_inconsistent
);
697 } else if (cans
->status
) {
698 adns__query_fail(parent
,cans
->status
);
702 queried
= &parent
->ctx
.info
.ptr_parent_addr
;
703 for (i
=0, found
=cans
->rrs
.addr
; i
<cans
->nrrs
; i
++, found
++) {
704 if (queried
->len
== found
->len
&&
705 !memcmp(&queried
->addr
,&found
->addr
,(size_t) queried
->len
)) {
706 if (!parent
->children
.head
) {
707 adns__query_done(parent
);
710 LIST_LINK_TAIL(ads
->childw
,parent
);
716 adns__query_fail(parent
,adns_s_inconsistent
);
719 static adns_status
pa_ptr(const parseinfo
*pai
, int dmstart
, int max
, void *datap
) {
720 static const char *(expectdomain
[])= { DNS_INADDR_ARPA
};
729 int cbyte
, i
, lablen
, labstart
, l
, id
;
734 st
= pap_domain(pai
, &cbyte
, max
, rrp
,
735 pai
->qu
->flags
& adns_qf_quoteok_anshost
? pdf_quoteok
: 0);
737 if (cbyte
!= max
) return adns_s_invaliddata
;
739 ap
= &pai
->qu
->ctx
.info
.ptr_parent_addr
;
741 adns__findlabel_start(&fls
, pai
->ads
, -1, pai
->qu
,
742 pai
->qu
->query_dgram
, pai
->qu
->query_dglen
,
743 pai
->qu
->query_dglen
, DNS_HDRSIZE
, 0);
744 for (i
=0; i
<4; i
++) {
745 st
= adns__findlabel_next(&fls
,&lablen
,&labstart
); assert(!st
);
746 if (lablen
<=0 || lablen
>3) return adns_s_querydomainwrong
;
747 memcpy(labbuf
, pai
->qu
->query_dgram
+ labstart
, (size_t) lablen
); labbuf
[lablen
]= 0;
748 ipv
[3-i
]= (unsigned char)strtoul(labbuf
,&ep
,10); if (*ep
) return adns_s_querydomainwrong
;
749 if (lablen
>1 && pai
->qu
->query_dgram
[labstart
]=='0')
750 return adns_s_querydomainwrong
;
752 for (i
=0; i
<(int)sizeof(expectdomain
)/(int)sizeof(*expectdomain
); i
++) {
753 st
= adns__findlabel_next(&fls
,&lablen
,&labstart
); assert(!st
);
754 l
= strlen(expectdomain
[i
]);
755 if (lablen
!= l
|| memcmp(pai
->qu
->query_dgram
+ labstart
, expectdomain
[i
], (size_t)l
))
756 return adns_s_querydomainwrong
;
758 st
= adns__findlabel_next(&fls
,&lablen
,0); assert(!st
);
759 if (lablen
) return adns_s_querydomainwrong
;
761 ap
->len
= sizeof(struct sockaddr_in
);
762 memset(&ap
->addr
,0,sizeof(ap
->addr
.inet
));
763 ap
->addr
.inet
.sin_family
= AF_INET
;
764 ap
->addr
.inet
.sin_addr
.s_addr
=
765 htonl((u_long
)(ipv
[0]<<24) | (ipv
[1]<<16) | (ipv
[2]<<8) | (ipv
[3]));
768 st
= adns__mkquery_frdgram(pai
->ads
, &pai
->qu
->vb
, &id
,
769 pai
->dgram
, pai
->dglen
, dmstart
,
770 adns_r_addr
, adns_qf_quoteok_query
);
774 ctx
.callback
= icb_ptr
;
775 memset(&ctx
.info
,0,(size_t) sizeof(ctx
.info
));
776 st
= adns__internal_submit(pai
->ads
, &nqu
, adns__findtype(adns_r_addr
),
778 adns_qf_quoteok_query
, pai
->now
, &ctx
);
781 nqu
->parent
= pai
->qu
;
782 LIST_LINK_TAIL_PART(pai
->qu
->children
,nqu
,siblings
.);
790 static void mf_strpair(adns_query qu
, void *datap
) {
791 adns_rr_strpair
*rrp
= datap
;
793 adns__makefinal_str(qu
,&rrp
->array
[0]);
794 adns__makefinal_str(qu
,&rrp
->array
[1]);
801 static void mf_intstrpair(adns_query qu
, void *datap
) {
802 adns_rr_intstrpair
*rrp
= datap
;
804 adns__makefinal_str(qu
,&rrp
->array
[0].str
);
805 adns__makefinal_str(qu
,&rrp
->array
[1].str
);
812 static adns_status
pa_hinfo(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
813 adns_rr_intstrpair
*rrp
= datap
;
817 for (i
=0; i
<2; i
++) {
818 st
= pap_qstring(pai
, &cbyte
, max
, &rrp
->array
[i
].i
, &rrp
->array
[i
].str
);
822 if (cbyte
!= max
) return adns_s_invaliddata
;
831 static adns_status
pap_mailbox822(const parseinfo
*pai
, int *cbyte_io
, int max
,
833 int lablen
, labstart
, i
, needquote
, c
, r
, neednorm
;
834 const unsigned char *p
;
842 adns__findlabel_start(&fls
, pai
->ads
,
844 pai
->dgram
, pai
->dglen
, max
,
845 *cbyte_io
, cbyte_io
);
846 st
= adns__findlabel_next(&fls
,&lablen
,&labstart
);
848 adns__vbuf_appendstr(vb
,".");
853 for (i
=0, needquote
=0, p
= pai
->dgram
+labstart
; i
<lablen
; i
++) {
855 if ((c
&~128) < 32 || (c
&~128) == 127) return adns_s_invaliddata
;
856 if (c
== '.' && !neednorm
) neednorm
= 1;
857 else if (c
==' ' || c
>=127 || ctype_822special(c
)) needquote
++;
861 if (needquote
|| neednorm
) {
862 r
= adns__vbuf_ensure(vb
, lablen
+needquote
+4); if (!r
) R_NOMEM
;
863 adns__vbuf_appendq(vb
,(byte
*)"\"",1);
864 for (i
=0, needquote
=0, p
= pai
->dgram
+labstart
; i
<lablen
; i
++, p
++) {
866 if (c
== '"' || c
=='\\') adns__vbuf_appendq(vb
,(byte
*)"\\",1);
867 adns__vbuf_appendq(vb
,p
,1);
869 adns__vbuf_appendq(vb
,(byte
*)"\"",1);
871 r
= adns__vbuf_append(vb
, pai
->dgram
+labstart
, lablen
); if (!r
) R_NOMEM
;
874 r
= adns__vbuf_appendstr(vb
,"@"); if (!r
) R_NOMEM
;
876 st
= adns__parse_domain_more(&fls
,pai
->ads
, pai
->qu
,vb
,0, pai
->dgram
);
880 str
= adns__alloc_interim(pai
->qu
, (size_t) vb
->used
+1); if (!str
) R_NOMEM
;
881 memcpy(str
,vb
->buf
,(size_t) vb
->used
);
887 static adns_status
pap_mailbox(const parseinfo
*pai
, int *cbyte_io
, int max
,
889 if (pai
->qu
->typei
->type
& adns__qtf_mail822
) {
890 return pap_mailbox822(pai
, cbyte_io
, max
, mb_r
);
892 return pap_domain(pai
, cbyte_io
, max
, mb_r
, pdf_quoteok
);
896 static adns_status
csp_mailbox(vbuf
*vb
, const char *mailbox
) {
897 return csp_domain(vb
,mailbox
);
904 static adns_status
pa_rp(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
905 adns_rr_strpair
*rrp
= datap
;
908 st
= pap_mailbox(pai
, &cbyte
, max
, &rrp
->array
[0]);
911 st
= pap_domain(pai
, &cbyte
, max
, &rrp
->array
[1], pdf_quoteok
);
914 if (cbyte
!= max
) return adns_s_invaliddata
;
918 static adns_status
cs_rp(vbuf
*vb
, const void *datap
) {
919 const adns_rr_strpair
*rrp
= datap
;
922 st
= csp_mailbox(vb
,rrp
->array
[0]); if (st
) return st
;
924 st
= csp_domain(vb
,rrp
->array
[1]); if (st
) return st
;
933 static adns_status
pa_soa(const parseinfo
*pai
, int cbyte
, int max
, void *datap
) {
934 adns_rr_soa
*rrp
= datap
;
935 const byte
*dgram
= pai
->dgram
;
939 st
= pap_domain(pai
, &cbyte
, max
, &rrp
->mname
,
940 pai
->qu
->flags
& adns_qf_quoteok_anshost
? pdf_quoteok
: 0);
943 st
= pap_mailbox(pai
, &cbyte
, max
, &rrp
->rname
);
946 if (cbyte
+20 != max
) return adns_s_invaliddata
;
948 for (i
=0; i
<5; i
++) {
951 (&rrp
->serial
)[i
]= (msw
<<16) | lsw
;
957 static void mf_soa(adns_query qu
, void *datap
) {
958 adns_rr_soa
*rrp
= datap
;
960 adns__makefinal_str(qu
,&rrp
->mname
);
961 adns__makefinal_str(qu
,&rrp
->rname
);
964 static adns_status
cs_soa(vbuf
*vb
, const void *datap
) {
965 const adns_rr_soa
*rrp
= datap
;
970 st
= csp_domain(vb
,rrp
->mname
); if (st
) return st
;
972 st
= csp_mailbox(vb
,rrp
->rname
); if (st
) return st
;
974 for (i
=0; i
<5; i
++) {
975 sprintf(buf
," %lu",(&rrp
->serial
)[i
]);
986 static void mf_flat(adns_query qu
, void *data
) { }
992 #define TYPESZ_M(member) (sizeof(*((adns_answer*)0)->rrs.member))
994 #define DEEP_MEMB(memb) TYPESZ_M(memb), mf_##memb, cs_##memb
995 #define FLAT_MEMB(memb) TYPESZ_M(memb), mf_flat, cs_##memb
997 #define DEEP_TYPE(code,rrt,fmt,memb,parser,comparer,printer) \
998 { adns_r_##code, rrt, fmt, TYPESZ_M(memb), mf_##memb, printer, parser, comparer }
999 #define FLAT_TYPE(code,rrt,fmt,memb,parser,comparer,printer) \
1000 { adns_r_##code, rrt, fmt, TYPESZ_M(memb), mf_flat, printer, parser, comparer }
1002 static const typeinfo typeinfos
[] = {
1003 /* Must be in ascending order of rrtype ! */
1004 /* mem-mgmt code rrt fmt member parser comparer printer */
1006 FLAT_TYPE(a
, "A", 0, inaddr
, pa_inaddr
, di_inaddr
, cs_inaddr
),
1007 DEEP_TYPE(ns_raw
, "NS", "raw", str
, pa_host_raw
,0, cs_domain
),
1008 DEEP_TYPE(cname
, "CNAME", 0, str
, pa_dom_raw
, 0, cs_domain
),
1009 DEEP_TYPE(soa_raw
,"SOA", "raw", soa
, pa_soa
, 0, cs_soa
),
1010 DEEP_TYPE(ptr_raw
,"PTR", "raw", str
, pa_host_raw
,0, cs_domain
),
1011 DEEP_TYPE(hinfo
, "HINFO", 0, intstrpair
, pa_hinfo
, 0, cs_hinfo
),
1012 DEEP_TYPE(mx_raw
, "MX", "raw", intstr
, pa_mx_raw
, di_mx_raw
, cs_inthost
),
1013 DEEP_TYPE(txt
, "TXT", 0, manyistr
, pa_txt
, 0, cs_txt
),
1014 DEEP_TYPE(rp_raw
, "RP", "raw", strpair
, pa_rp
, 0, cs_rp
),
1016 FLAT_TYPE(addr
, "A", "addr", addr
, pa_addr
, di_addr
, cs_addr
),
1017 DEEP_TYPE(ns
, "NS", "+addr", hostaddr
, pa_hostaddr
,di_hostaddr
,cs_hostaddr
),
1018 DEEP_TYPE(ptr
, "PTR","checked",str
, pa_ptr
, 0, cs_domain
),
1019 DEEP_TYPE(mx
, "MX", "+addr", inthostaddr
,pa_mx
, di_mx
, cs_inthostaddr
),
1021 DEEP_TYPE(soa
, "SOA","822", soa
, pa_soa
, 0, cs_soa
),
1022 DEEP_TYPE(rp
, "RP", "822", strpair
, pa_rp
, 0, cs_rp
),
1025 const typeinfo
*adns__findtype(adns_rrtype type
) {
1026 const typeinfo
*begin
, *end
, *mid
;
1028 begin
= typeinfos
; end
= typeinfos
+(sizeof(typeinfos
)/sizeof(typeinfo
));
1030 while (begin
< end
) {
1031 mid
= begin
+ ((end
-begin
)>>1);
1032 if (mid
->type
== type
) return mid
;
1033 if (type
> mid
->type
) begin
= mid
+1;