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 { \
39 if (!adns__vbuf_appendstr(vb,(s))) R_NOMEM; \
46 * _textdata, _qstring (csp)
52 * _addr (pa,di,csp,cs)
55 * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +pap_findaddrs)
58 * _inthostaddr (mf,cs)
63 * _mailbox (pap +pap_mailbox822)
68 * within each section:
83 static adns_status pap_qstring(const parseinfo *pai, int *cbyte_io, int max,
84 int *len_r, char **str_r) {
85 /* Neither len_r nor str_r may be null.
86 * End of datagram (overrun) is indicated by returning adns_s_invaliddata;
88 const byte *dgram= pai->dgram;
94 if (cbyte >= max) return adns_s_invaliddata;
96 if (cbyte+l > max) return adns_s_invaliddata;
98 str= adns__alloc_interim(pai->qu, l+1);
102 memcpy(str,dgram+cbyte,l);
111 static adns_status csp_qstring(vbuf *vb, const char *dp, int len) {
117 for (cn=0; cn<len; cn++) {
121 } else if (ch == '"') {
123 } else if (ch >= 32 && ch <= 126) {
124 if (!adns__vbuf_append(vb,&ch,1)) R_NOMEM;
126 sprintf(buf,"\\x%02x",ch);
139 static void mf_str(adns_query qu, void *datap) {
142 adns__makefinal_str(qu,rrp);
149 static void mf_intstr(adns_query qu, void *datap) {
150 adns_rr_intstr *rrp= datap;
152 adns__makefinal_str(qu,&rrp->str);
159 static void mf_manyistr(adns_query qu, void *datap) {
160 adns_rr_intstr **rrp= datap;
161 adns_rr_intstr *te, *table;
165 for (tc=0, te= *rrp; te->i >= 0; te++, tc++);
167 adns__makefinal_block(qu,&tablev,sizeof(*te)*(tc+1));
169 for (te= *rrp; te->i >= 0; te++)
170 adns__makefinal_str(qu,&te->str);
177 static adns_status pa_txt(const parseinfo *pai, int cbyte,
178 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,
242 int max, void *datap) {
243 struct in_addr *storeto= datap;
245 if (max-cbyte != 4) return adns_s_invaliddata;
246 memcpy(storeto, pai->dgram + cbyte, 4);
250 static int search_sortlist(adns_state ads, struct in_addr ad) {
251 const struct sortlist *slp;
254 for (i=0, slp=ads->sortlist;
256 !((ad.s_addr & slp->mask.s_addr) == slp->base.s_addr);
261 static int dip_inaddr(adns_state ads, struct in_addr a, struct in_addr b) {
264 if (!ads->nsortlist) return 0;
266 ai= search_sortlist(ads,a);
267 bi= search_sortlist(ads,b);
271 static int di_inaddr(adns_state ads,
272 const void *datap_a, const void *datap_b) {
273 const struct in_addr *ap= datap_a, *bp= datap_b;
275 return dip_inaddr(ads,*ap,*bp);
278 static adns_status cs_inaddr(vbuf *vb, const void *datap) {
279 const struct in_addr *rrp= datap, rr= *rrp;
282 ia= inet_ntoa(rr); assert(ia);
288 * _addr (pa,di,csp,cs)
291 static adns_status pa_addr(const parseinfo *pai, int cbyte,
292 int max, void *datap) {
293 adns_rr_addr *storeto= datap;
294 const byte *dgram= pai->dgram;
296 if (max-cbyte != 4) return adns_s_invaliddata;
297 storeto->len= sizeof(storeto->addr.inet);
298 memset(&storeto->addr,0,sizeof(storeto->addr.inet));
299 storeto->addr.inet.sin_family= AF_INET;
300 memcpy(&storeto->addr.inet.sin_addr,dgram+cbyte,4);
304 static int di_addr(adns_state ads, const void *datap_a, const void *datap_b) {
305 const adns_rr_addr *ap= datap_a, *bp= datap_b;
307 assert(ap->addr.sa.sa_family == AF_INET);
308 return dip_inaddr(ads, ap->addr.inet.sin_addr, bp->addr.inet.sin_addr);
311 static int div_addr(void *context, const void *datap_a, const void *datap_b) {
312 const adns_state ads= context;
314 return di_addr(ads, datap_a, datap_b);
317 static adns_status csp_addr(vbuf *vb, const adns_rr_addr *rrp) {
321 switch (rrp->addr.inet.sin_family) {
324 ia= inet_ntoa(rrp->addr.inet.sin_addr); assert(ia);
328 sprintf(buf,"AF=%u",rrp->addr.sa.sa_family);
335 static adns_status cs_addr(vbuf *vb, const void *datap) {
336 const adns_rr_addr *rrp= datap;
338 return csp_addr(vb,rrp);
342 * _domain (pap,csp,cs)
346 static adns_status pap_domain(const parseinfo *pai, int *cbyte_io, int max,
347 char **domain_r, parsedomain_flags flags) {
351 st= adns__parse_domain(pai->qu->ads, pai->serv, pai->qu, &pai->qu->vb, flags,
352 pai->dgram,pai->dglen, cbyte_io, max);
354 if (!pai->qu->vb.used) return adns_s_invaliddata;
356 dm= adns__alloc_interim(pai->qu, pai->qu->vb.used+1);
359 dm[pai->qu->vb.used]= 0;
360 memcpy(dm,pai->qu->vb.buf,pai->qu->vb.used);
366 static adns_status csp_domain(vbuf *vb, const char *domain) {
368 if (!*domain) CSP_ADDSTR(".");
372 static adns_status cs_domain(vbuf *vb, const void *datap) {
373 const char *const *domainp= datap;
374 return csp_domain(vb,*domainp);
377 static adns_status pa_dom_raw(const parseinfo *pai, int cbyte,
378 int max, void *datap) {
382 st= pap_domain(pai, &cbyte, max, rrp, pdf_quoteok);
385 if (cbyte != max) return adns_s_invaliddata;
393 static adns_status pa_host_raw(const parseinfo *pai, int cbyte,
394 int max, void *datap) {
398 st= pap_domain(pai, &cbyte, max, rrp,
399 pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0);
402 if (cbyte != max) return adns_s_invaliddata;
407 * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +icb_hostaddr, pap_findaddrs)
410 static adns_status pap_findaddrs(const parseinfo *pai, adns_rr_hostaddr *ha,
411 int *cbyte_io, int count, int dmstart) {
413 int type, class, rdlen, rdstart, ownermatched;
417 for (rri=0, naddrs=-1; rri<count; rri++) {
418 st= adns__findrr_anychk(pai->qu, pai->serv, pai->dgram,
419 pai->dglen, cbyte_io,
420 &type, &class, &ttl, &rdlen, &rdstart,
421 pai->dgram, pai->dglen, dmstart, &ownermatched);
423 if (!ownermatched || class != DNS_CLASS_IN || type != adns_r_a) {
424 if (naddrs>0) break; else continue;
429 if (!adns__vbuf_ensure(&pai->qu->vb, (naddrs+1)*sizeof(adns_rr_addr)))
431 adns__update_expires(pai->qu,ttl,pai->now);
432 st= pa_addr(pai, rdstart,rdstart+rdlen,
433 pai->qu->vb.buf + naddrs*sizeof(adns_rr_addr));
438 ha->addrs= adns__alloc_interim(pai->qu, naddrs*sizeof(adns_rr_addr));
439 if (!ha->addrs) R_NOMEM;
440 memcpy(ha->addrs, pai->qu->vb.buf, naddrs*sizeof(adns_rr_addr));
442 ha->astatus= adns_s_ok;
444 adns__isort(ha->addrs, naddrs, sizeof(adns_rr_addr), pai->qu->vb.buf,
450 static void icb_hostaddr(adns_query parent, adns_query child) {
451 adns_answer *cans= child->answer;
452 adns_rr_hostaddr *rrp= child->ctx.info.hostaddr;
453 adns_state ads= parent->ads;
458 rrp->naddrs= (st>0 && st<=adns_s_max_tempfail) ? -1 : cans->nrrs;
459 rrp->addrs= cans->rrs.addr;
460 adns__transfer_interim(child, parent, rrp->addrs,
461 rrp->naddrs*sizeof(adns_rr_addr));
463 if (parent->children.head) {
464 LIST_LINK_TAIL(ads->childw,parent);
466 adns__query_done(parent);
470 static adns_status pap_hostaddr(const parseinfo *pai, int *cbyte_io,
471 int max, adns_rr_hostaddr *rrp) {
477 adns_queryflags nflags;
479 dmstart= cbyte= *cbyte_io;
480 st= pap_domain(pai, &cbyte, max, &rrp->host,
481 pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0);
485 rrp->astatus= adns_s_ok;
491 st= pap_findaddrs(pai, rrp, &cbyte, pai->nscount, dmstart);
493 if (rrp->naddrs != -1) return adns_s_ok;
495 st= pap_findaddrs(pai, rrp, &cbyte, pai->arcount, dmstart);
497 if (rrp->naddrs != -1) return adns_s_ok;
499 st= adns__mkquery_frdgram(pai->ads, &pai->qu->vb, &id,
500 pai->dgram, pai->dglen, dmstart,
501 adns_r_addr, adns_qf_quoteok_query);
505 ctx.callback= icb_hostaddr;
506 ctx.info.hostaddr= rrp;
508 nflags= adns_qf_quoteok_query;
509 if (!(pai->qu->flags & adns_qf_cname_loose)) nflags |= adns_qf_cname_forbid;
511 st= adns__internal_submit(pai->ads, &nqu, adns__findtype(adns_r_addr),
512 &pai->qu->vb, id, nflags, pai->now, &ctx);
515 nqu->parent= pai->qu;
516 LIST_LINK_TAIL_PART(pai->qu->children,nqu,siblings.);
521 static adns_status pa_hostaddr(const parseinfo *pai, int cbyte,
522 int max, void *datap) {
523 adns_rr_hostaddr *rrp= datap;
526 st= pap_hostaddr(pai, &cbyte, max, rrp);
528 if (cbyte != max) return adns_s_invaliddata;
533 static int dip_hostaddr(adns_state ads,
534 const adns_rr_hostaddr *ap, const adns_rr_hostaddr *bp) {
535 if (ap->astatus != bp->astatus) return ap->astatus;
536 if (ap->astatus) return 0;
538 assert(ap->addrs[0].addr.sa.sa_family == AF_INET);
539 assert(bp->addrs[0].addr.sa.sa_family == AF_INET);
540 return dip_inaddr(ads,
541 ap->addrs[0].addr.inet.sin_addr,
542 bp->addrs[0].addr.inet.sin_addr);
545 static int di_hostaddr(adns_state ads,
546 const void *datap_a, const void *datap_b) {
547 const adns_rr_hostaddr *ap= datap_a, *bp= datap_b;
549 return dip_hostaddr(ads, ap,bp);
552 static void mfp_hostaddr(adns_query qu, adns_rr_hostaddr *rrp) {
555 adns__makefinal_str(qu,&rrp->host);
557 adns__makefinal_block(qu, &tablev, rrp->naddrs*sizeof(*rrp->addrs));
561 static void mf_hostaddr(adns_query qu, void *datap) {
562 adns_rr_hostaddr *rrp= datap;
564 mfp_hostaddr(qu,rrp);
567 static adns_status csp_hostaddr(vbuf *vb, const adns_rr_hostaddr *rrp) {
573 st= csp_domain(vb,rrp->host); if (st) return st;
576 CSP_ADDSTR(adns_errtypeabbrev(rrp->astatus));
578 sprintf(buf," %d ",rrp->astatus);
581 CSP_ADDSTR(adns_errabbrev(rrp->astatus));
584 errstr= adns_strerror(rrp->astatus);
585 st= csp_qstring(vb,errstr,strlen(errstr)); if (st) return st;
587 if (rrp->naddrs >= 0) {
589 for (i=0; i<rrp->naddrs; i++) {
591 st= csp_addr(vb,&rrp->addrs[i]);
600 static adns_status cs_hostaddr(vbuf *vb, const void *datap) {
601 const adns_rr_hostaddr *rrp= datap;
603 return csp_hostaddr(vb,rrp);
610 static adns_status pa_mx_raw(const parseinfo *pai, int cbyte,
611 int max, void *datap) {
612 const byte *dgram= pai->dgram;
613 adns_rr_intstr *rrp= datap;
617 if (cbyte+2 > max) return adns_s_invaliddata;
620 st= pap_domain(pai, &cbyte, max, &rrp->str,
621 pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0);
624 if (cbyte != max) return adns_s_invaliddata;
628 static int di_mx_raw(adns_state ads, const void *datap_a, const void *datap_b) {
629 const adns_rr_intstr *ap= datap_a, *bp= datap_b;
631 if (ap->i < bp->i) return 0;
632 if (ap->i > bp->i) return 1;
640 static adns_status pa_mx(const parseinfo *pai, int cbyte,
641 int max, void *datap) {
642 const byte *dgram= pai->dgram;
643 adns_rr_inthostaddr *rrp= datap;
647 if (cbyte+2 > max) return adns_s_invaliddata;
650 st= pap_hostaddr(pai, &cbyte, max, &rrp->ha);
653 if (cbyte != max) return adns_s_invaliddata;
657 static int di_mx(adns_state ads, const void *datap_a, const void *datap_b) {
658 const adns_rr_inthostaddr *ap= datap_a, *bp= datap_b;
660 if (ap->i < bp->i) return 0;
661 if (ap->i > bp->i) return 1;
662 return dip_hostaddr(ads, &ap->ha, &bp->ha);
666 * _inthostaddr (mf,cs)
669 static void mf_inthostaddr(adns_query qu, void *datap) {
670 adns_rr_inthostaddr *rrp= datap;
672 mfp_hostaddr(qu,&rrp->ha);
675 static adns_status cs_inthostaddr(vbuf *vb, const void *datap) {
676 const adns_rr_inthostaddr *rrp= datap;
679 sprintf(buf,"%u ",rrp->i);
682 return csp_hostaddr(vb,&rrp->ha);
689 static adns_status cs_inthost(vbuf *vb, const void *datap) {
690 const adns_rr_intstr *rrp= datap;
693 sprintf(buf,"%u ",rrp->i);
695 return csp_domain(vb,rrp->str);
699 * _ptr (pa, +icb_ptr)
702 static void icb_ptr(adns_query parent, adns_query child) {
703 adns_answer *cans= child->answer;
704 const adns_rr_addr *queried, *found;
705 adns_state ads= parent->ads;
708 if (cans->status == adns_s_nxdomain || cans->status == adns_s_nodata) {
709 adns__query_fail(parent,adns_s_inconsistent);
711 } else if (cans->status) {
712 adns__query_fail(parent,cans->status);
716 queried= &parent->ctx.info.ptr_parent_addr;
717 for (i=0, found=cans->rrs.addr; i<cans->nrrs; i++, found++) {
718 if (queried->len == found->len &&
719 !memcmp(&queried->addr,&found->addr,queried->len)) {
720 if (!parent->children.head) {
721 adns__query_done(parent);
724 LIST_LINK_TAIL(ads->childw,parent);
730 adns__query_fail(parent,adns_s_inconsistent);
733 static adns_status pa_ptr(const parseinfo *pai, int dmstart,
734 int max, void *datap) {
735 static const char *(expectdomain[])= { DNS_INADDR_ARPA };
744 int cbyte, i, lablen, labstart, l, id;
749 st= pap_domain(pai, &cbyte, max, rrp,
750 pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0);
752 if (cbyte != max) return adns_s_invaliddata;
754 ap= &pai->qu->ctx.info.ptr_parent_addr;
756 adns__findlabel_start(&fls, pai->ads, -1, pai->qu,
757 pai->qu->query_dgram, pai->qu->query_dglen,
758 pai->qu->query_dglen, DNS_HDRSIZE, 0);
759 for (i=0; i<4; i++) {
760 st= adns__findlabel_next(&fls,&lablen,&labstart); assert(!st);
761 if (lablen<=0 || lablen>3) return adns_s_querydomainwrong;
762 memcpy(labbuf, pai->qu->query_dgram + labstart, lablen);
764 ipv[3-i]= strtoul(labbuf,&ep,10);
765 if (*ep) return adns_s_querydomainwrong;
766 if (lablen>1 && pai->qu->query_dgram[labstart]=='0')
767 return adns_s_querydomainwrong;
769 for (i=0; i<sizeof(expectdomain)/sizeof(*expectdomain); i++) {
770 st= adns__findlabel_next(&fls,&lablen,&labstart); assert(!st);
771 l= strlen(expectdomain[i]);
773 memcmp(pai->qu->query_dgram + labstart, expectdomain[i], l))
774 return adns_s_querydomainwrong;
776 st= adns__findlabel_next(&fls,&lablen,0); assert(!st);
777 if (lablen) return adns_s_querydomainwrong;
779 ap->len= sizeof(struct sockaddr_in);
780 memset(&ap->addr,0,sizeof(ap->addr.inet));
781 ap->addr.inet.sin_family= AF_INET;
782 ap->addr.inet.sin_addr.s_addr=
783 htonl((ipv[0]<<24) | (ipv[1]<<16) | (ipv[2]<<8) | (ipv[3]));
786 st= adns__mkquery_frdgram(pai->ads, &pai->qu->vb, &id,
787 pai->dgram, pai->dglen, dmstart,
788 adns_r_addr, adns_qf_quoteok_query);
792 ctx.callback= icb_ptr;
793 memset(&ctx.info,0,sizeof(ctx.info));
794 st= adns__internal_submit(pai->ads, &nqu, adns__findtype(adns_r_addr),
796 adns_qf_quoteok_query, pai->now, &ctx);
799 nqu->parent= pai->qu;
800 LIST_LINK_TAIL_PART(pai->qu->children,nqu,siblings.);
808 static void mf_strpair(adns_query qu, void *datap) {
809 adns_rr_strpair *rrp= datap;
811 adns__makefinal_str(qu,&rrp->array[0]);
812 adns__makefinal_str(qu,&rrp->array[1]);
819 static void mf_intstrpair(adns_query qu, void *datap) {
820 adns_rr_intstrpair *rrp= datap;
822 adns__makefinal_str(qu,&rrp->array[0].str);
823 adns__makefinal_str(qu,&rrp->array[1].str);
830 static adns_status pa_hinfo(const parseinfo *pai, int cbyte,
831 int max, void *datap) {
832 adns_rr_intstrpair *rrp= datap;
836 for (i=0; i<2; i++) {
837 st= pap_qstring(pai, &cbyte, max, &rrp->array[i].i, &rrp->array[i].str);
841 if (cbyte != max) return adns_s_invaliddata;
850 static adns_status pap_mailbox822(const parseinfo *pai,
851 int *cbyte_io, int max, char **mb_r) {
852 int lablen, labstart, i, needquote, c, r, neednorm;
853 const unsigned char *p;
861 adns__findlabel_start(&fls, pai->ads,
863 pai->dgram, pai->dglen, max,
864 *cbyte_io, cbyte_io);
865 st= adns__findlabel_next(&fls,&lablen,&labstart);
867 adns__vbuf_appendstr(vb,".");
872 for (i=0, needquote=0, p= pai->dgram+labstart; i<lablen; i++) {
874 if ((c&~128) < 32 || (c&~128) == 127) return adns_s_invaliddata;
875 if (c == '.' && !neednorm) neednorm= 1;
876 else if (c==' ' || c>=127 || ctype_822special(c)) needquote++;
880 if (needquote || neednorm) {
881 r= adns__vbuf_ensure(vb, lablen+needquote+4); if (!r) R_NOMEM;
882 adns__vbuf_appendq(vb,"\"",1);
883 for (i=0, needquote=0, p= pai->dgram+labstart; i<lablen; i++, p++) {
885 if (c == '"' || c=='\\') adns__vbuf_appendq(vb,"\\",1);
886 adns__vbuf_appendq(vb,p,1);
888 adns__vbuf_appendq(vb,"\"",1);
890 r= adns__vbuf_append(vb, pai->dgram+labstart, lablen); if (!r) R_NOMEM;
893 r= adns__vbuf_appendstr(vb,"@"); if (!r) R_NOMEM;
895 st= adns__parse_domain_more(&fls,pai->ads, pai->qu,vb,0, pai->dgram);
899 str= adns__alloc_interim(pai->qu, vb->used+1); if (!str) R_NOMEM;
900 memcpy(str,vb->buf,vb->used);
906 static adns_status pap_mailbox(const parseinfo *pai, int *cbyte_io, int max,
908 if (pai->qu->typei->type & adns__qtf_mail822) {
909 return pap_mailbox822(pai, cbyte_io, max, mb_r);
911 return pap_domain(pai, cbyte_io, max, mb_r, pdf_quoteok);
915 static adns_status csp_mailbox(vbuf *vb, const char *mailbox) {
916 return csp_domain(vb,mailbox);
923 static adns_status pa_rp(const parseinfo *pai, int cbyte,
924 int max, void *datap) {
925 adns_rr_strpair *rrp= datap;
928 st= pap_mailbox(pai, &cbyte, max, &rrp->array[0]);
931 st= pap_domain(pai, &cbyte, max, &rrp->array[1], pdf_quoteok);
934 if (cbyte != max) return adns_s_invaliddata;
938 static adns_status cs_rp(vbuf *vb, const void *datap) {
939 const adns_rr_strpair *rrp= datap;
942 st= csp_mailbox(vb,rrp->array[0]); if (st) return st;
944 st= csp_domain(vb,rrp->array[1]); if (st) return st;
953 static adns_status pa_soa(const parseinfo *pai, int cbyte,
954 int max, void *datap) {
955 adns_rr_soa *rrp= datap;
956 const byte *dgram= pai->dgram;
960 st= pap_domain(pai, &cbyte, max, &rrp->mname,
961 pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0);
964 st= pap_mailbox(pai, &cbyte, max, &rrp->rname);
967 if (cbyte+20 != max) return adns_s_invaliddata;
969 for (i=0; i<5; i++) {
972 (&rrp->serial)[i]= (msw<<16) | lsw;
978 static void mf_soa(adns_query qu, void *datap) {
979 adns_rr_soa *rrp= datap;
981 adns__makefinal_str(qu,&rrp->mname);
982 adns__makefinal_str(qu,&rrp->rname);
985 static adns_status cs_soa(vbuf *vb, const void *datap) {
986 const adns_rr_soa *rrp= datap;
991 st= csp_domain(vb,rrp->mname); if (st) return st;
993 st= csp_mailbox(vb,rrp->rname); if (st) return st;
995 for (i=0; i<5; i++) {
996 sprintf(buf," %lu",(&rrp->serial)[i]);
1007 static void mf_flat(adns_query qu, void *data) { }
1013 #define TYPESZ_M(member) (sizeof(*((adns_answer*)0)->rrs.member))
1015 #define DEEP_MEMB(memb) TYPESZ_M(memb), mf_##memb, cs_##memb
1016 #define FLAT_MEMB(memb) TYPESZ_M(memb), mf_flat, cs_##memb
1018 #define DEEP_TYPE(code,rrt,fmt,memb,parser,comparer,printer) \
1019 { adns_r_##code, rrt,fmt,TYPESZ_M(memb), mf_##memb, printer,parser,comparer }
1020 #define FLAT_TYPE(code,rrt,fmt,memb,parser,comparer,printer) \
1021 { adns_r_##code, rrt,fmt,TYPESZ_M(memb), mf_flat, printer,parser,comparer }
1023 static const typeinfo typeinfos[] = {
1024 /* Must be in ascending order of rrtype ! */
1025 /* mem-mgmt code rrt fmt member parser comparer printer */
1027 FLAT_TYPE(a, "A", 0, inaddr, pa_inaddr, di_inaddr,cs_inaddr ),
1028 DEEP_TYPE(ns_raw, "NS", "raw",str, pa_host_raw,0, cs_domain ),
1029 DEEP_TYPE(cname, "CNAME", 0, str, pa_dom_raw, 0, cs_domain ),
1030 DEEP_TYPE(soa_raw,"SOA", "raw",soa, pa_soa, 0, cs_soa ),
1031 DEEP_TYPE(ptr_raw,"PTR", "raw",str, pa_host_raw,0, cs_domain ),
1032 DEEP_TYPE(hinfo, "HINFO", 0, intstrpair,pa_hinfo, 0, cs_hinfo ),
1033 DEEP_TYPE(mx_raw, "MX", "raw",intstr, pa_mx_raw, di_mx_raw,cs_inthost ),
1034 DEEP_TYPE(txt, "TXT", 0, manyistr,pa_txt, 0, cs_txt ),
1035 DEEP_TYPE(rp_raw, "RP", "raw",strpair, pa_rp, 0, cs_rp ),
1037 FLAT_TYPE(addr, "A", "addr", addr, pa_addr, di_addr, cs_addr ),
1038 DEEP_TYPE(ns, "NS", "+addr",hostaddr,pa_hostaddr,di_hostaddr,cs_hostaddr ),
1039 DEEP_TYPE(ptr, "PTR","checked",str, pa_ptr, 0, cs_domain ),
1040 DEEP_TYPE(mx, "MX", "+addr",inthostaddr,pa_mx, di_mx, cs_inthostaddr),
1042 DEEP_TYPE(soa, "SOA","822", soa, pa_soa, 0, cs_soa ),
1043 DEEP_TYPE(rp, "RP", "822", strpair, pa_rp, 0, cs_rp ),
1046 const typeinfo *adns__findtype(adns_rrtype type) {
1047 const typeinfo *begin, *end, *mid;
1049 begin= typeinfos; end= typeinfos+(sizeof(typeinfos)/sizeof(typeinfo));
1051 while (begin < end) {
1052 mid= begin + ((end-begin)>>1);
1053 if (mid->type == type) return mid;
1054 if (type > mid->type) begin= mid+1;