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.
30
#include <sys/types.h>
31
#include <sys/socket.h>
32
#include <netinet/in.h>
33
#include <arpa/inet.h>
37
#define R_NOMEM return adns_s_nomemory
38
#define CSP_ADDSTR(s) do { if (!adns__vbuf_appendstr(vb,(s))) R_NOMEM; } while (0)
44
* _textdata, _qstring (csp)
50
* _addr (pa,di,csp,cs)
53
* _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +pap_findaddrs)
56
* _inthostaddr (mf,cs)
61
* _mailbox (pap +pap_mailbox822)
66
* within each section:
81
static adns_status pap_qstring(const parseinfo *pai, int *cbyte_io, int max,
82
int *len_r, char **str_r) {
83
/* Neither len_r nor str_r may be null.
84
* End of datagram (overrun) is indicated by returning adns_s_invaliddata;
86
const byte *dgram= pai->dgram;
92
if (cbyte >= max) return adns_s_invaliddata;
94
if (cbyte+l > max) return adns_s_invaliddata;
96
str= adns__alloc_interim(pai->qu, l+1);
100
memcpy(str,dgram+cbyte,l);
109
static adns_status csp_qstring(vbuf *vb, const char *dp, int len) {
115
for (cn=0; cn<len; cn++) {
119
} else if (ch == '"') {
121
} else if (ch >= 32 && ch <= 126) {
122
if (!adns__vbuf_append(vb,&ch,1)) R_NOMEM;
124
sprintf(buf,"\\x%02x",ch);
137
static void mf_str(adns_query qu, void *datap) {
140
adns__makefinal_str(qu,rrp);
147
static void mf_intstr(adns_query qu, void *datap) {
148
adns_rr_intstr *rrp= datap;
150
adns__makefinal_str(qu,&rrp->str);
157
static void mf_manyistr(adns_query qu, void *datap) {
158
adns_rr_intstr **rrp= datap;
159
adns_rr_intstr *te, *table;
163
for (tc=0, te= *rrp; te->i >= 0; te++, tc++);
165
adns__makefinal_block(qu,&tablev,sizeof(*te)*(tc+1));
167
for (te= *rrp; te->i >= 0; te++)
168
adns__makefinal_str(qu,&te->str);
175
static adns_status pa_txt(const parseinfo *pai, int cbyte, int max, void *datap) {
176
adns_rr_intstr **rrp= datap, *table, *te;
177
const byte *dgram= pai->dgram;
178
int ti, tc, l, startbyte;
182
if (cbyte >= max) return adns_s_invaliddata;
184
while (cbyte < max) {
189
if (cbyte != max || !tc) return adns_s_invaliddata;
191
table= adns__alloc_interim(pai->qu,sizeof(*table)*(tc+1));
194
for (cbyte=startbyte, ti=0, te=table; ti<tc; ti++, te++) {
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st= pap_qstring(pai, &cbyte, max, &te->i, &te->str);
198
assert(cbyte == max);
207
static adns_status cs_txt(vbuf *vb, const void *datap) {
208
const adns_rr_intstr *const *rrp= datap;
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const adns_rr_intstr *current;
213
for (current= *rrp, spc=0; current->i >= 0; current++, spc=1) {
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if (spc) CSP_ADDSTR(" ");
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st= csp_qstring(vb,current->str,current->i); if (st) return st;
224
static adns_status cs_hinfo(vbuf *vb, const void *datap) {
225
const adns_rr_intstrpair *rrp= datap;
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st= csp_qstring(vb,rrp->array[0].str,rrp->array[0].i); if (st) return st;
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st= csp_qstring(vb,rrp->array[1].str,rrp->array[1].i); if (st) return st;
235
* _inaddr (pa,dip,di)
238
static adns_status pa_inaddr(const parseinfo *pai, int cbyte, int max, void *datap) {
239
struct in_addr *storeto= datap;
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if (max-cbyte != 4) return adns_s_invaliddata;
242
memcpy(storeto, pai->dgram + cbyte, 4);
246
static int search_sortlist(adns_state ads, struct in_addr ad) {
247
const struct sortlist *slp;
250
for (i=0, slp=ads->sortlist;
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i<ads->nsortlist && !((ad.s_addr & slp->mask.s_addr) == slp->base.s_addr);
256
static int dip_inaddr(adns_state ads, struct in_addr a, struct in_addr b) {
259
if (!ads->nsortlist) return 0;
261
ai= search_sortlist(ads,a);
262
bi= search_sortlist(ads,b);
266
static int di_inaddr(adns_state ads, const void *datap_a, const void *datap_b) {
267
const struct in_addr *ap= datap_a, *bp= datap_b;
269
return dip_inaddr(ads,*ap,*bp);
272
static adns_status cs_inaddr(vbuf *vb, const void *datap) {
273
const struct in_addr *rrp= datap, rr= *rrp;
276
ia= inet_ntoa(rr); assert(ia);
282
* _addr (pa,di,csp,cs)
285
static adns_status pa_addr(const parseinfo *pai, int cbyte, int max, void *datap) {
286
adns_rr_addr *storeto= datap;
287
const byte *dgram= pai->dgram;
289
if (max-cbyte != 4) return adns_s_invaliddata;
290
storeto->len= sizeof(storeto->addr.inet);
291
memset(&storeto->addr,0,sizeof(storeto->addr.inet));
292
storeto->addr.inet.sin_family= AF_INET;
293
memcpy(&storeto->addr.inet.sin_addr,dgram+cbyte,4);
297
static int di_addr(adns_state ads, const void *datap_a, const void *datap_b) {
298
const adns_rr_addr *ap= datap_a, *bp= datap_b;
300
assert(ap->addr.sa.sa_family == AF_INET);
301
return dip_inaddr(ads, ap->addr.inet.sin_addr, bp->addr.inet.sin_addr);
304
static int div_addr(void *context, const void *datap_a, const void *datap_b) {
305
const adns_state ads= context;
307
return di_addr(ads, datap_a, datap_b);
310
static adns_status csp_addr(vbuf *vb, const adns_rr_addr *rrp) {
314
switch (rrp->addr.inet.sin_family) {
317
ia= inet_ntoa(rrp->addr.inet.sin_addr); assert(ia);
321
sprintf(buf,"AF=%u",rrp->addr.sa.sa_family);
328
static adns_status cs_addr(vbuf *vb, const void *datap) {
329
const adns_rr_addr *rrp= datap;
331
return csp_addr(vb,rrp);
335
* _domain (pap,csp,cs)
339
static adns_status pap_domain(const parseinfo *pai, int *cbyte_io, int max,
340
char **domain_r, parsedomain_flags flags) {
344
st= adns__parse_domain(pai->qu->ads, pai->serv, pai->qu, &pai->qu->vb, flags,
345
pai->dgram,pai->dglen, cbyte_io, max);
347
if (!pai->qu->vb.used) return adns_s_invaliddata;
349
dm= adns__alloc_interim(pai->qu, pai->qu->vb.used+1);
352
dm[pai->qu->vb.used]= 0;
353
memcpy(dm,pai->qu->vb.buf,pai->qu->vb.used);
359
static adns_status csp_domain(vbuf *vb, const char *domain) {
361
if (!*domain) CSP_ADDSTR(".");
365
static adns_status cs_domain(vbuf *vb, const void *datap) {
366
const char *const *domainp= datap;
367
return csp_domain(vb,*domainp);
370
static adns_status pa_dom_raw(const parseinfo *pai, int cbyte, int max, void *datap) {
374
st= pap_domain(pai, &cbyte, max, rrp, pdf_quoteok);
377
if (cbyte != max) return adns_s_invaliddata;
385
static adns_status pa_host_raw(const parseinfo *pai, int cbyte, int max, void *datap) {
389
st= pap_domain(pai, &cbyte, max, rrp,
390
pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0);
393
if (cbyte != max) return adns_s_invaliddata;
398
* _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +icb_hostaddr, pap_findaddrs)
401
static adns_status pap_findaddrs(const parseinfo *pai, adns_rr_hostaddr *ha,
402
int *cbyte_io, int count, int dmstart) {
404
int type, class, rdlen, rdstart, ownermatched;
408
for (rri=0, naddrs=-1; rri<count; rri++) {
409
st= adns__findrr_anychk(pai->qu, pai->serv, pai->dgram, pai->dglen, cbyte_io,
410
&type, &class, &ttl, &rdlen, &rdstart,
411
pai->dgram, pai->dglen, dmstart, &ownermatched);
413
if (!ownermatched || class != DNS_CLASS_IN || type != adns_r_a) {
414
if (naddrs>0) break; else continue;
419
if (!adns__vbuf_ensure(&pai->qu->vb, (naddrs+1)*sizeof(adns_rr_addr))) R_NOMEM;
420
adns__update_expires(pai->qu,ttl,pai->now);
421
st= pa_addr(pai, rdstart,rdstart+rdlen,
422
pai->qu->vb.buf + naddrs*sizeof(adns_rr_addr));
427
ha->addrs= adns__alloc_interim(pai->qu, naddrs*sizeof(adns_rr_addr));
428
if (!ha->addrs) R_NOMEM;
429
memcpy(ha->addrs, pai->qu->vb.buf, naddrs*sizeof(adns_rr_addr));
431
ha->astatus= adns_s_ok;
433
adns__isort(ha->addrs, naddrs, sizeof(adns_rr_addr), pai->qu->vb.buf,
439
static void icb_hostaddr(adns_query parent, adns_query child) {
440
adns_answer *cans= child->answer;
441
adns_rr_hostaddr *rrp= child->ctx.info.hostaddr;
442
adns_state ads= parent->ads;
447
rrp->naddrs= (st>0 && st<=adns_s_max_tempfail) ? -1 : cans->nrrs;
448
rrp->addrs= cans->rrs.addr;
449
adns__transfer_interim(child, parent, rrp->addrs, rrp->naddrs*sizeof(adns_rr_addr));
451
if (parent->children.head) {
452
LIST_LINK_TAIL(ads->childw,parent);
454
adns__query_done(parent);
458
static adns_status pap_hostaddr(const parseinfo *pai, int *cbyte_io,
459
int max, adns_rr_hostaddr *rrp) {
465
adns_queryflags nflags;
467
dmstart= cbyte= *cbyte_io;
468
st= pap_domain(pai, &cbyte, max, &rrp->host,
469
pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0);
473
rrp->astatus= adns_s_ok;
479
st= pap_findaddrs(pai, rrp, &cbyte, pai->nscount, dmstart);
481
if (rrp->naddrs != -1) return adns_s_ok;
483
st= pap_findaddrs(pai, rrp, &cbyte, pai->arcount, dmstart);
485
if (rrp->naddrs != -1) return adns_s_ok;
487
st= adns__mkquery_frdgram(pai->ads, &pai->qu->vb, &id,
488
pai->dgram, pai->dglen, dmstart,
489
adns_r_addr, adns_qf_quoteok_query);
493
ctx.callback= icb_hostaddr;
494
ctx.info.hostaddr= rrp;
496
nflags= adns_qf_quoteok_query;
497
if (!(pai->qu->flags & adns_qf_cname_loose)) nflags |= adns_qf_cname_forbid;
499
st= adns__internal_submit(pai->ads, &nqu, adns__findtype(adns_r_addr),
500
&pai->qu->vb, id, nflags, pai->now, &ctx);
503
nqu->parent= pai->qu;
504
LIST_LINK_TAIL_PART(pai->qu->children,nqu,siblings.);
509
static adns_status pa_hostaddr(const parseinfo *pai, int cbyte, int max, void *datap) {
510
adns_rr_hostaddr *rrp= datap;
513
st= pap_hostaddr(pai, &cbyte, max, rrp);
515
if (cbyte != max) return adns_s_invaliddata;
520
static int dip_hostaddr(adns_state ads, const adns_rr_hostaddr *ap, const adns_rr_hostaddr *bp) {
521
if (ap->astatus != bp->astatus) return ap->astatus;
522
if (ap->astatus) return 0;
524
assert(ap->addrs[0].addr.sa.sa_family == AF_INET);
525
assert(bp->addrs[0].addr.sa.sa_family == AF_INET);
526
return dip_inaddr(ads,
527
ap->addrs[0].addr.inet.sin_addr,
528
bp->addrs[0].addr.inet.sin_addr);
531
static int di_hostaddr(adns_state ads, const void *datap_a, const void *datap_b) {
532
const adns_rr_hostaddr *ap= datap_a, *bp= datap_b;
534
return dip_hostaddr(ads, ap,bp);
537
static void mfp_hostaddr(adns_query qu, adns_rr_hostaddr *rrp) {
540
adns__makefinal_str(qu,&rrp->host);
542
adns__makefinal_block(qu, &tablev, rrp->naddrs*sizeof(*rrp->addrs));
546
static void mf_hostaddr(adns_query qu, void *datap) {
547
adns_rr_hostaddr *rrp= datap;
549
mfp_hostaddr(qu,rrp);
552
static adns_status csp_hostaddr(vbuf *vb, const adns_rr_hostaddr *rrp) {
558
st= csp_domain(vb,rrp->host); if (st) return st;
561
CSP_ADDSTR(adns_errtypeabbrev(rrp->astatus));
563
sprintf(buf," %d ",rrp->astatus);
566
CSP_ADDSTR(adns_errabbrev(rrp->astatus));
569
errstr= adns_strerror(rrp->astatus);
570
st= csp_qstring(vb,errstr,strlen(errstr)); if (st) return st;
572
if (rrp->naddrs >= 0) {
574
for (i=0; i<rrp->naddrs; i++) {
576
st= csp_addr(vb,&rrp->addrs[i]);
585
static adns_status cs_hostaddr(vbuf *vb, const void *datap) {
586
const adns_rr_hostaddr *rrp= datap;
588
return csp_hostaddr(vb,rrp);
595
static adns_status pa_mx_raw(const parseinfo *pai, int cbyte, int max, void *datap) {
596
const byte *dgram= pai->dgram;
597
adns_rr_intstr *rrp= datap;
601
if (cbyte+2 > max) return adns_s_invaliddata;
604
st= pap_domain(pai, &cbyte, max, &rrp->str,
605
pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0);
608
if (cbyte != max) return adns_s_invaliddata;
612
static int di_mx_raw(adns_state ads, const void *datap_a, const void *datap_b) {
613
const adns_rr_intstr *ap= datap_a, *bp= datap_b;
615
if (ap->i < bp->i) return 0;
616
if (ap->i > bp->i) return 1;
624
static adns_status pa_mx(const parseinfo *pai, int cbyte, int max, void *datap) {
625
const byte *dgram= pai->dgram;
626
adns_rr_inthostaddr *rrp= datap;
630
if (cbyte+2 > max) return adns_s_invaliddata;
633
st= pap_hostaddr(pai, &cbyte, max, &rrp->ha);
636
if (cbyte != max) return adns_s_invaliddata;
640
static int di_mx(adns_state ads, const void *datap_a, const void *datap_b) {
641
const adns_rr_inthostaddr *ap= datap_a, *bp= datap_b;
643
if (ap->i < bp->i) return 0;
644
if (ap->i > bp->i) return 1;
645
return dip_hostaddr(ads, &ap->ha, &bp->ha);
649
* _inthostaddr (mf,cs)
652
static void mf_inthostaddr(adns_query qu, void *datap) {
653
adns_rr_inthostaddr *rrp= datap;
655
mfp_hostaddr(qu,&rrp->ha);
658
static adns_status cs_inthostaddr(vbuf *vb, const void *datap) {
659
const adns_rr_inthostaddr *rrp= datap;
662
sprintf(buf,"%u ",rrp->i);
665
return csp_hostaddr(vb,&rrp->ha);
672
static adns_status cs_inthost(vbuf *vb, const void *datap) {
673
const adns_rr_intstr *rrp= datap;
676
sprintf(buf,"%u ",rrp->i);
678
return csp_domain(vb,rrp->str);
682
* _ptr (pa, +icb_ptr)
685
static void icb_ptr(adns_query parent, adns_query child) {
686
adns_answer *cans= child->answer;
687
const adns_rr_addr *queried, *found;
688
adns_state ads= parent->ads;
691
if (cans->status == adns_s_nxdomain || cans->status == adns_s_nodata) {
692
adns__query_fail(parent,adns_s_inconsistent);
694
} else if (cans->status) {
695
adns__query_fail(parent,cans->status);
699
queried= &parent->ctx.info.ptr_parent_addr;
700
for (i=0, found=cans->rrs.addr; i<cans->nrrs; i++, found++) {
701
if (queried->len == found->len &&
702
!memcmp(&queried->addr,&found->addr,queried->len)) {
703
if (!parent->children.head) {
704
adns__query_done(parent);
707
LIST_LINK_TAIL(ads->childw,parent);
713
adns__query_fail(parent,adns_s_inconsistent);
716
static adns_status pa_ptr(const parseinfo *pai, int dmstart, int max, void *datap) {
717
static const char *(expectdomain[])= { DNS_INADDR_ARPA };
726
int cbyte, i, lablen, labstart, l, id;
731
st= pap_domain(pai, &cbyte, max, rrp,
732
pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0);
734
if (cbyte != max) return adns_s_invaliddata;
736
ap= &pai->qu->ctx.info.ptr_parent_addr;
738
adns__findlabel_start(&fls, pai->ads, -1, pai->qu,
739
pai->qu->query_dgram, pai->qu->query_dglen,
740
pai->qu->query_dglen, DNS_HDRSIZE, 0);
741
for (i=0; i<4; i++) {
742
st= adns__findlabel_next(&fls,&lablen,&labstart); assert(!st);
743
if (lablen<=0 || lablen>3) return adns_s_querydomainwrong;
744
memcpy(labbuf, pai->qu->query_dgram + labstart, lablen); labbuf[lablen]= 0;
745
ipv[3-i]= strtoul(labbuf,&ep,10); if (*ep) return adns_s_querydomainwrong;
746
if (lablen>1 && pai->qu->query_dgram[labstart]=='0')
747
return adns_s_querydomainwrong;
749
for (i=0; i<sizeof(expectdomain)/sizeof(*expectdomain); i++) {
750
st= adns__findlabel_next(&fls,&lablen,&labstart); assert(!st);
751
l= strlen(expectdomain[i]);
752
if (lablen != l || memcmp(pai->qu->query_dgram + labstart, expectdomain[i], l))
753
return adns_s_querydomainwrong;
755
st= adns__findlabel_next(&fls,&lablen,0); assert(!st);
756
if (lablen) return adns_s_querydomainwrong;
758
ap->len= sizeof(struct sockaddr_in);
759
memset(&ap->addr,0,sizeof(ap->addr.inet));
760
ap->addr.inet.sin_family= AF_INET;
761
ap->addr.inet.sin_addr.s_addr=
762
htonl((ipv[0]<<24) | (ipv[1]<<16) | (ipv[2]<<8) | (ipv[3]));
765
st= adns__mkquery_frdgram(pai->ads, &pai->qu->vb, &id,
766
pai->dgram, pai->dglen, dmstart,
767
adns_r_addr, adns_qf_quoteok_query);
771
ctx.callback= icb_ptr;
772
memset(&ctx.info,0,sizeof(ctx.info));
773
st= adns__internal_submit(pai->ads, &nqu, adns__findtype(adns_r_addr),
775
adns_qf_quoteok_query, pai->now, &ctx);
778
nqu->parent= pai->qu;
779
LIST_LINK_TAIL_PART(pai->qu->children,nqu,siblings.);
787
static void mf_strpair(adns_query qu, void *datap) {
788
adns_rr_strpair *rrp= datap;
790
adns__makefinal_str(qu,&rrp->array[0]);
791
adns__makefinal_str(qu,&rrp->array[1]);
798
static void mf_intstrpair(adns_query qu, void *datap) {
799
adns_rr_intstrpair *rrp= datap;
801
adns__makefinal_str(qu,&rrp->array[0].str);
802
adns__makefinal_str(qu,&rrp->array[1].str);
809
static adns_status pa_hinfo(const parseinfo *pai, int cbyte, int max, void *datap) {
810
adns_rr_intstrpair *rrp= datap;
814
for (i=0; i<2; i++) {
815
st= pap_qstring(pai, &cbyte, max, &rrp->array[i].i, &rrp->array[i].str);
819
if (cbyte != max) return adns_s_invaliddata;
828
static adns_status pap_mailbox822(const parseinfo *pai, int *cbyte_io, int max,
830
int lablen, labstart, i, needquote, c, r, neednorm;
831
const unsigned char *p;
839
adns__findlabel_start(&fls, pai->ads,
841
pai->dgram, pai->dglen, max,
842
*cbyte_io, cbyte_io);
843
st= adns__findlabel_next(&fls,&lablen,&labstart);
845
adns__vbuf_appendstr(vb,".");
850
for (i=0, needquote=0, p= pai->dgram+labstart; i<lablen; i++) {
852
if ((c&~128) < 32 || (c&~128) == 127) return adns_s_invaliddata;
853
if (c == '.' && !neednorm) neednorm= 1;
854
else if (c==' ' || c>=127 || ctype_822special(c)) needquote++;
858
if (needquote || neednorm) {
859
r= adns__vbuf_ensure(vb, lablen+needquote+4); if (!r) R_NOMEM;
860
adns__vbuf_appendq(vb,"\"",1);
861
for (i=0, needquote=0, p= pai->dgram+labstart; i<lablen; i++, p++) {
863
if (c == '"' || c=='\\') adns__vbuf_appendq(vb,"\\",1);
864
adns__vbuf_appendq(vb,p,1);
866
adns__vbuf_appendq(vb,"\"",1);
868
r= adns__vbuf_append(vb, pai->dgram+labstart, lablen); if (!r) R_NOMEM;
871
r= adns__vbuf_appendstr(vb,"@"); if (!r) R_NOMEM;
873
st= adns__parse_domain_more(&fls,pai->ads, pai->qu,vb,0, pai->dgram);
877
str= adns__alloc_interim(pai->qu, vb->used+1); if (!str) R_NOMEM;
878
memcpy(str,vb->buf,vb->used);
884
static adns_status pap_mailbox(const parseinfo *pai, int *cbyte_io, int max,
886
if (pai->qu->typei->type & adns__qtf_mail822) {
887
return pap_mailbox822(pai, cbyte_io, max, mb_r);
889
return pap_domain(pai, cbyte_io, max, mb_r, pdf_quoteok);
893
static adns_status csp_mailbox(vbuf *vb, const char *mailbox) {
894
return csp_domain(vb,mailbox);
901
static adns_status pa_rp(const parseinfo *pai, int cbyte, int max, void *datap) {
902
adns_rr_strpair *rrp= datap;
905
st= pap_mailbox(pai, &cbyte, max, &rrp->array[0]);
908
st= pap_domain(pai, &cbyte, max, &rrp->array[1], pdf_quoteok);
911
if (cbyte != max) return adns_s_invaliddata;
915
static adns_status cs_rp(vbuf *vb, const void *datap) {
916
const adns_rr_strpair *rrp= datap;
919
st= csp_mailbox(vb,rrp->array[0]); if (st) return st;
921
st= csp_domain(vb,rrp->array[1]); if (st) return st;
930
static adns_status pa_soa(const parseinfo *pai, int cbyte, int max, void *datap) {
931
adns_rr_soa *rrp= datap;
932
const byte *dgram= pai->dgram;
936
st= pap_domain(pai, &cbyte, max, &rrp->mname,
937
pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0);
940
st= pap_mailbox(pai, &cbyte, max, &rrp->rname);
943
if (cbyte+20 != max) return adns_s_invaliddata;
945
for (i=0; i<5; i++) {
948
(&rrp->serial)[i]= (msw<<16) | lsw;
954
static void mf_soa(adns_query qu, void *datap) {
955
adns_rr_soa *rrp= datap;
957
adns__makefinal_str(qu,&rrp->mname);
958
adns__makefinal_str(qu,&rrp->rname);
961
static adns_status cs_soa(vbuf *vb, const void *datap) {
962
const adns_rr_soa *rrp= datap;
967
st= csp_domain(vb,rrp->mname); if (st) return st;
969
st= csp_mailbox(vb,rrp->rname); if (st) return st;
971
for (i=0; i<5; i++) {
972
sprintf(buf," %lu",(&rrp->serial)[i]);
983
static void mf_flat(adns_query qu, void *data) { }
989
#define TYPESZ_M(member) (sizeof(*((adns_answer*)0)->rrs.member))
991
#define DEEP_MEMB(memb) TYPESZ_M(memb), mf_##memb, cs_##memb
992
#define FLAT_MEMB(memb) TYPESZ_M(memb), mf_flat, cs_##memb
994
#define DEEP_TYPE(code,rrt,fmt,memb,parser,comparer,printer) \
995
{ adns_r_##code, rrt, fmt, TYPESZ_M(memb), mf_##memb, printer, parser, comparer }
996
#define FLAT_TYPE(code,rrt,fmt,memb,parser,comparer,printer) \
997
{ adns_r_##code, rrt, fmt, TYPESZ_M(memb), mf_flat, printer, parser, comparer }
999
static const typeinfo typeinfos[] = {
1000
/* Must be in ascending order of rrtype ! */
1001
/* mem-mgmt code rrt fmt member parser comparer printer */
1003
FLAT_TYPE(a, "A", 0, inaddr, pa_inaddr, di_inaddr, cs_inaddr ),
1004
DEEP_TYPE(ns_raw, "NS", "raw", str, pa_host_raw,0, cs_domain ),
1005
DEEP_TYPE(cname, "CNAME", 0, str, pa_dom_raw, 0, cs_domain ),
1006
DEEP_TYPE(soa_raw,"SOA", "raw", soa, pa_soa, 0, cs_soa ),
1007
DEEP_TYPE(ptr_raw,"PTR", "raw", str, pa_host_raw,0, cs_domain ),
1008
DEEP_TYPE(hinfo, "HINFO", 0, intstrpair, pa_hinfo, 0, cs_hinfo ),
1009
DEEP_TYPE(mx_raw, "MX", "raw", intstr, pa_mx_raw, di_mx_raw, cs_inthost ),
1010
DEEP_TYPE(txt, "TXT", 0, manyistr, pa_txt, 0, cs_txt ),
1011
DEEP_TYPE(rp_raw, "RP", "raw", strpair, pa_rp, 0, cs_rp ),
1013
FLAT_TYPE(addr, "A", "addr", addr, pa_addr, di_addr, cs_addr ),
1014
DEEP_TYPE(ns, "NS", "+addr", hostaddr, pa_hostaddr,di_hostaddr,cs_hostaddr ),
1015
DEEP_TYPE(ptr, "PTR","checked",str, pa_ptr, 0, cs_domain ),
1016
DEEP_TYPE(mx, "MX", "+addr", inthostaddr,pa_mx, di_mx, cs_inthostaddr),
1018
DEEP_TYPE(soa, "SOA","822", soa, pa_soa, 0, cs_soa ),
1019
DEEP_TYPE(rp, "RP", "822", strpair, pa_rp, 0, cs_rp ),
1022
const typeinfo *adns__findtype(adns_rrtype type) {
1023
const typeinfo *begin, *end, *mid;
1025
begin= typeinfos; end= typeinfos+(sizeof(typeinfos)/sizeof(typeinfo));
1027
while (begin < end) {
1028
mid= begin + ((end-begin)>>1);
1029
if (mid->type == type) return mid;
1030
if (type > mid->type) begin= mid+1;