* - RR-type-specific code, and the machinery to call it
*/
/*
- * This file is
- * Copyright (C) 1997-1999 Ian Jackson <ian@davenant.greenend.org.uk>
- *
- * It is part of adns, which is
- * Copyright (C) 1997-2000 Ian Jackson <ian@davenant.greenend.org.uk>
- * Copyright (C) 1999-2000 Tony Finch <dot@dotat.at>
+ * This file is part of adns, which is
+ * Copyright (C) 1997-2000,2003,2006 Ian Jackson
+ * Copyright (C) 1999-2000,2003,2006 Tony Finch
+ * Copyright (C) 1991 Massachusetts Institute of Technology
+ * (See the file INSTALL for full details.)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* _intstr (mf,csp,cs)
* _manyistr (mf,cs)
* _txt (pa)
- * _inaddr (pa,dip,di)
- * _addr (pa,di,csp,cs)
- * _domain (pap)
+ * _inaddr (pa,dip,di,cs +search_sortlist)
+ * _addr (pa,di,div,csp,cs)
+ * _domain (pap,csp,cs)
+ * _dom_raw (pa)
* _host_raw (pa)
- * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +pap_findaddrs)
+ * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs
+ * +pap_findaddrs, icb_hostaddr)
* _mx_raw (pa,di)
* _mx (pa,di)
* _inthostaddr (mf,cs)
- * _ptr (pa)
- * _strpair (mf,cs)
- * _intstrpair (mf,cs)
+ * _inthost (cs)
+ * _ptr (ckl,pa +icb_ptr)
+ * _strpair (mf)
+ * _intstrpair (mf)
* _hinfo (pa)
- * _mailbox (pap +pap_mailbox822)
- * _rp (pa)
+ * _mailbox (pap,csp +pap_mailbox822)
+ * _rp (pa,cs)
* _soa (pa,mf,cs)
- * _srv* (qdpl,(pap),pa,mf,di,(csp),cs,postsort)
+ * _srv* (ckl,(pap),pa*2,mf*2,di,(csp),cs*2,postsort)
+ * _byteblock (mf)
+ * _opaque (pa,cs)
* _flat (mf)
*
* within each section:
- * qdpl_*
+ * ckl_*
* pap_*
* pa_*
* dip_*
}
/*
- * _inaddr (pa,dip,di)
+ * _inaddr (pa,dip,di,cs +search_sortlist)
*/
static adns_status pa_inaddr(const parseinfo *pai, int cbyte,
}
/*
- * _addr (pa,di,csp,cs)
+ * _addr (pa,di,div,csp,cs)
*/
static adns_status pa_addr(const parseinfo *pai, int cbyte,
static adns_status csp_addr(vbuf *vb, const adns_rr_addr *rrp) {
const char *ia;
- static char buf[30];
+ char buf[30];
switch (rrp->addr.inet.sin_family) {
case AF_INET:
}
/*
- * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +icb_hostaddr, pap_findaddrs)
+ * _hostaddr (pap,pa,dip,di,mfp,mf,csp,cs +pap_findaddrs, icb_hostaddr)
*/
static adns_status pap_findaddrs(const parseinfo *pai, adns_rr_hostaddr *ha,
static void icb_hostaddr(adns_query parent, adns_query child) {
adns_answer *cans= child->answer;
- adns_rr_hostaddr *rrp= child->ctx.info.hostaddr;
+ adns_rr_hostaddr *rrp= child->ctx.pinfo.hostaddr;
adns_state ads= parent->ads;
adns_status st;
ctx.ext= 0;
ctx.callback= icb_hostaddr;
- ctx.info.hostaddr= rrp;
+ ctx.pinfo.hostaddr= rrp;
+ memset(&ctx.tinfo, 0, sizeof(ctx.tinfo));
nflags= adns_qf_quoteok_query;
if (!(pai->qu->flags & adns_qf_cname_loose)) nflags |= adns_qf_cname_forbid;
st= adns__internal_submit(pai->ads, &nqu, adns__findtype(adns_r_addr),
+ ((adns_r_addr & adns_rrt_reprmask) |
+ (pai->qu->answer->type & ~adns_rrt_reprmask)),
&pai->qu->vb, id, nflags, pai->now, &ctx);
if (st) return st;
}
/*
- * _ptr (pa, +icb_ptr)
+ * _ptr (ckl,pa +icb_ptr)
*/
+static adns_status ckl_ptr(adns_state ads, adns_queryflags flags,
+ union checklabel_state *cls, qcontext *ctx,
+ int labnum, const char *label, int lablen) {
+ static const char *const (expectdomain[])= { DNS_INADDR_ARPA };
+ char *ep;
+ const char *ed;
+ char labbuf[4];
+ int l;
+
+ if (labnum < 4) {
+ if (lablen<=0 || lablen>3) return adns_s_querydomainwrong;
+ memcpy(labbuf, label, lablen);
+ labbuf[lablen]= 0;
+ cls->ptr.ipv[3-labnum]= strtoul(labbuf,&ep,10);
+ if (*ep) return adns_s_querydomainwrong;
+ if (lablen>1 && *label=='0') return adns_s_querydomainwrong;
+ } else if (labnum < 4 + sizeof(expectdomain)/sizeof(*expectdomain)) {
+ ed= expectdomain[labnum-4];
+ l= strlen(ed);
+ if (lablen != l || memcmp(label, ed, l)) return adns_s_querydomainwrong;
+ } else {
+ if (lablen) return adns_s_querydomainwrong;
+ ctx->tinfo.ptr.addr.s_addr=
+ htonl((cls->ptr.ipv[0]<<24) | (cls->ptr.ipv[1]<<16) |
+ (cls->ptr.ipv[2]<< 8) | (cls->ptr.ipv[3]));
+ }
+ return adns_s_ok;
+}
+
static void icb_ptr(adns_query parent, adns_query child) {
adns_answer *cans= child->answer;
- const adns_rr_addr *queried, *found;
+ const struct in_addr *queried;
+ const unsigned char *found;
adns_state ads= parent->ads;
int i;
return;
}
- queried= &parent->ctx.info.ptr_parent_addr;
- for (i=0, found=cans->rrs.addr; i<cans->nrrs; i++, found++) {
- if (queried->len == found->len &&
- !memcmp(&queried->addr,&found->addr,queried->len)) {
+ queried= &parent->ctx.tinfo.ptr.addr;
+ for (i=0, found=cans->rrs.bytes; i<cans->nrrs; i++, found+=cans->rrsz) {
+ if (!memcmp(queried,found,cans->rrsz)) {
if (!parent->children.head) {
adns__query_done(parent);
return;
static adns_status pa_ptr(const parseinfo *pai, int dmstart,
int max, void *datap) {
- static const char *(expectdomain[])= { DNS_INADDR_ARPA };
-
char **rrp= datap;
adns_status st;
- adns_rr_addr *ap;
- findlabel_state fls;
- char *ep;
- byte ipv[4];
- char labbuf[4];
- int cbyte, i, lablen, labstart, l, id;
+ int cbyte, id;
adns_query nqu;
qcontext ctx;
if (st) return st;
if (cbyte != max) return adns_s_invaliddata;
- ap= &pai->qu->ctx.info.ptr_parent_addr;
- if (!ap->len) {
- adns__findlabel_start(&fls, pai->ads, -1, pai->qu,
- pai->qu->query_dgram, pai->qu->query_dglen,
- pai->qu->query_dglen, DNS_HDRSIZE, 0);
- for (i=0; i<4; i++) {
- st= adns__findlabel_next(&fls,&lablen,&labstart); assert(!st);
- if (lablen<=0 || lablen>3) return adns_s_querydomainwrong;
- memcpy(labbuf, pai->qu->query_dgram + labstart, lablen);
- labbuf[lablen]= 0;
- ipv[3-i]= strtoul(labbuf,&ep,10);
- if (*ep) return adns_s_querydomainwrong;
- if (lablen>1 && pai->qu->query_dgram[labstart]=='0')
- return adns_s_querydomainwrong;
- }
- for (i=0; i<sizeof(expectdomain)/sizeof(*expectdomain); i++) {
- st= adns__findlabel_next(&fls,&lablen,&labstart); assert(!st);
- l= strlen(expectdomain[i]);
- if (lablen != l ||
- memcmp(pai->qu->query_dgram + labstart, expectdomain[i], l))
- return adns_s_querydomainwrong;
- }
- st= adns__findlabel_next(&fls,&lablen,0); assert(!st);
- if (lablen) return adns_s_querydomainwrong;
-
- ap->len= sizeof(struct sockaddr_in);
- memset(&ap->addr,0,sizeof(ap->addr.inet));
- ap->addr.inet.sin_family= AF_INET;
- ap->addr.inet.sin_addr.s_addr=
- htonl((ipv[0]<<24) | (ipv[1]<<16) | (ipv[2]<<8) | (ipv[3]));
- }
-
st= adns__mkquery_frdgram(pai->ads, &pai->qu->vb, &id,
pai->dgram, pai->dglen, dmstart,
- adns_r_addr, adns_qf_quoteok_query);
+ adns_r_a, adns_qf_quoteok_query);
if (st) return st;
ctx.ext= 0;
ctx.callback= icb_ptr;
- memset(&ctx.info,0,sizeof(ctx.info));
- st= adns__internal_submit(pai->ads, &nqu, adns__findtype(adns_r_addr),
- &pai->qu->vb, id,
- adns_qf_quoteok_query, pai->now, &ctx);
+ memset(&ctx.pinfo,0,sizeof(ctx.pinfo));
+ memset(&ctx.tinfo,0,sizeof(ctx.tinfo));
+ st= adns__internal_submit(pai->ads, &nqu, adns__findtype(adns_r_a),
+ adns_r_a, &pai->qu->vb, id, adns_qf_quoteok_query,
+ pai->now, &ctx);
if (st) return st;
nqu->parent= pai->qu;
}
/*
- * _mailbox (pap,cs)
+ * _mailbox (pap,cs +pap_mailbox822)
*/
static adns_status pap_mailbox822(const parseinfo *pai,
static adns_status pap_mailbox(const parseinfo *pai, int *cbyte_io, int max,
char **mb_r) {
- if (pai->qu->typei->type & adns__qtf_mail822) {
+ if (pai->qu->typei->typekey & adns__qtf_mail822) {
return pap_mailbox822(pai, cbyte_io, max, mb_r);
} else {
return pap_domain(pai, cbyte_io, max, mb_r, pdf_quoteok);
}
/*
- * _srv* (pa*2,di,cs*2,qdpl,postsort)
+ * _srv* (ckl,(pap),pa*2,mf*2,di,(csp),cs*2,postsort)
*/
-static adns_status qdpl_srv(adns_state ads,
- const char **p_io, const char *pe, int labelnum,
- char label_r[DNS_MAXDOMAIN], int *ll_io,
- adns_queryflags flags,
- const typeinfo *typei) {
- int useflags;
- const char *p_orig;
- adns_status st;
-
- if (labelnum < 2 && !(flags & adns_qf_quoteok_query)) {
- useflags= adns_qf_quoteok_query;
- p_orig= *p_io;
- } else {
- useflags= flags;
- p_orig= 0;
- }
- st= adns__qdpl_normal(ads, p_io,pe, labelnum,label_r, ll_io, useflags,typei);
- if (st) return st;
-
- if (p_orig) {
- int ll= *ll_io;
- if (!ll || label_r[0]!='_')
- return adns_s_querydomaininvalid;
- if (memchr(p_orig+1, '\\', pe - (p_orig+1)))
- return adns_s_querydomaininvalid;
+static adns_status ckl_srv(adns_state ads, adns_queryflags flags,
+ union checklabel_state *cls, qcontext *ctx,
+ int labnum, const char *label, int lablen) {
+ if (labnum < 2 && !(flags & adns_qf_quoteok_query)) {
+ if (!lablen || label[0] != '_') return adns_s_querydomaininvalid;
+ return adns_s_ok;
}
- return adns_s_ok;
+ return adns__ckl_hostname(ads, flags, cls, ctx, labnum, label, lablen);
}
-static adns_status pap_srv_begin(const parseinfo *pai, int cbyte, int max,
- adns_rr_srvraw *rrp
- /* might be adns_rr_srvha* */) {
+static adns_status pap_srv_begin(const parseinfo *pai, int *cbyte_io, int max,
+ adns_rr_srvha *rrp
+ /* might be adns_rr_srvraw* */) {
const byte *dgram= pai->dgram;
- int ti;
- if (cbyte+6 > max) return adns_s_invaliddata;
+ int ti, cbyte;
+
+ cbyte= *cbyte_io;
+ if ((*cbyte_io += 6) > max) return adns_s_invaliddata;
rrp->priority= GET_W(cbyte, ti);
rrp->weight= GET_W(cbyte, ti);
adns_rr_srvraw *rrp= datap;
adns_status st;
- st= pap_srv_begin(pai,cbyte,max,datap);
+ st= pap_srv_begin(pai,&cbyte,max,datap);
if (st) return st;
st= pap_domain(pai, &cbyte, max, &rrp->host,
adns_rr_srvha *rrp= datap;
adns_status st;
- st= pap_srv_begin(pai,cbyte,max,datap); if (st) return st;
+ st= pap_srv_begin(pai,&cbyte,max,datap); if (st) return st;
st= pap_hostaddr(pai, &cbyte, max, &rrp->ha); if (st) return st;
if (cbyte != max) return adns_s_invaliddata;
return adns_s_ok;
return 0;
}
-static adns_status csp_srv_begin(vbuf *vb, const adns_rr_srvraw *rrp
- /* might be adns_rr_srvha* */) {
+static adns_status csp_srv_begin(vbuf *vb, const adns_rr_srvha *rrp
+ /* might be adns_rr_srvraw* */) {
char buf[30];
sprintf(buf,"%u %u %u ", rrp->priority, rrp->weight, rrp->port);
CSP_ADDSTR(buf);
const adns_rr_srvraw *rrp= datap;
adns_status st;
- st= csp_srv_begin(vb,rrp); if (st) return st;
+ st= csp_srv_begin(vb,(const void*)rrp); if (st) return st;
return csp_domain(vb,rrp->host);
}
const adns_rr_srvha *rrp= datap;
adns_status st;
- st= csp_srv_begin(vb,datap); if (st) return st;
+ st= csp_srv_begin(vb,(const void*)datap); if (st) return st;
return csp_hostaddr(vb,&rrp->ha);
}
-static void postsort_srv(adns_state ads, void *array, int nobjs,
+static void postsort_srv(adns_state ads, void *array, int nrrs,
const struct typeinfo *typei) {
- fprintf(stderr,"(postsort_srv)\n");
+ /* we treat everything in the array as if it were an adns_rr_srvha
+ * even though the array might be of adns_rr_srvraw. That's OK
+ * because they have the same prefix, which is all we access.
+ * We use typei->rrsz, too, rather than naive array indexing, of course.
+ */
+ char *workbegin, *workend, *search, *arrayend;
+ const adns_rr_srvha *rr;
+ union { adns_rr_srvha ha; adns_rr_srvraw raw; } rrtmp;
+ int cpriority, totalweight, runtotal;
+ long randval;
+
+ for (workbegin= array, arrayend= workbegin + typei->rrsz * nrrs;
+ workbegin < arrayend;
+ workbegin= workend) {
+ cpriority= (rr=(void*)workbegin)->priority;
+
+ for (workend= workbegin, totalweight= 0;
+ workend < arrayend && (rr=(void*)workend)->priority == cpriority;
+ workend += typei->rrsz) {
+ totalweight += rr->weight;
+ }
+
+ /* Now workbegin..(workend-1) incl. are exactly all of the RRs of
+ * cpriority. From now on, workbegin points to the `remaining'
+ * records: we select one record at a time (RFC2782 `Usage rules'
+ * and `Format of the SRV RR' subsection `Weight') to place at
+ * workbegin (swapping with the one that was there, and then
+ * advance workbegin. */
+ for (;
+ workbegin + typei->rrsz < workend; /* don't bother if just one */
+ workbegin += typei->rrsz) {
+
+ randval= nrand48(ads->rand48xsubi);
+ randval %= (totalweight + 1);
+ /* makes it into 0..totalweight inclusive; with 2^10 RRs,
+ * totalweight must be <= 2^26 so probability nonuniformity is
+ * no worse than 1 in 2^(31-26) ie 1 in 2^5, ie
+ * abs(log(P_intended(RR_i) / P_actual(RR_i)) <= log(2^-5).
+ */
+
+ for (search=workbegin, runtotal=0;
+ (runtotal += (rr=(void*)search)->weight) < randval;
+ search += typei->rrsz);
+ assert(search < arrayend);
+ totalweight -= rr->weight;
+ if (search != workbegin) {
+ memcpy(&rrtmp, workbegin, typei->rrsz);
+ memcpy(workbegin, search, typei->rrsz);
+ memcpy(search, &rrtmp, typei->rrsz);
+ }
+ }
+ }
/* tests:
* dig -t srv _srv._tcp.test.iwj.relativity.greenend.org.uk.
* ./adnshost_s -t srv- _sip._udp.voip.net.cam.ac.uk.
*/
}
+/*
+ * _byteblock (mf)
+ */
+
+static void mf_byteblock(adns_query qu, void *datap) {
+ adns_rr_byteblock *rrp= datap;
+ void *bytes= rrp->data;
+ adns__makefinal_block(qu,&bytes,rrp->len);
+ rrp->data= bytes;
+}
+
+/*
+ * _opaque (pa,cs)
+ */
+
+static adns_status pa_opaque(const parseinfo *pai, int cbyte,
+ int max, void *datap) {
+ adns_rr_byteblock *rrp= datap;
+
+ rrp->len= max - cbyte;
+ rrp->data= adns__alloc_interim(pai->qu, rrp->len);
+ if (!rrp->data) R_NOMEM;
+ memcpy(rrp->data, pai->dgram + cbyte, rrp->len);
+ return adns_s_ok;
+}
+
+static adns_status cs_opaque(vbuf *vb, const void *datap) {
+ const adns_rr_byteblock *rrp= datap;
+ char buf[10];
+ int l;
+ unsigned char *p;
+
+ sprintf(buf,"\\# %d",rrp->len);
+ CSP_ADDSTR(buf);
+
+ for (l= rrp->len, p= rrp->data;
+ l>=4;
+ l -= 4, p += 4) {
+ sprintf(buf," %02x%02x%02x%02x",p[0],p[1],p[2],p[3]);
+ CSP_ADDSTR(buf);
+ }
+ for (;
+ l>0;
+ l--, p++) {
+ sprintf(buf," %02x",*p);
+ CSP_ADDSTR(buf);
+ }
+ return adns_s_ok;
+}
+
/*
* _flat (mf)
*/
#define TYPESZ_M(member) (sizeof(*((adns_answer*)0)->rrs.member))
-#define DEEP_MEMB(memb) TYPESZ_M(memb), mf_##memb, cs_##memb
-#define FLAT_MEMB(memb) TYPESZ_M(memb), mf_flat, cs_##memb
+#define DEEP_TYPE(code,rrt,fmt,memb,parser,comparer,/*printer*/...) \
+ { adns_r_##code&adns_rrt_reprmask, rrt,fmt,TYPESZ_M(memb), mf_##memb, \
+ GLUE(cs_, CAR(__VA_ARGS__)),pa_##parser,di_##comparer, \
+ adns__ckl_hostname, CDR(__VA_ARGS__) }
+#define FLAT_TYPE(code,rrt,fmt,memb,parser,comparer,/*printer*/...) \
+ { adns_r_##code&adns_rrt_reprmask, rrt,fmt,TYPESZ_M(memb), mf_flat, \
+ GLUE(cs_, CAR(__VA_ARGS__)),pa_##parser,di_##comparer, \
+ adns__ckl_hostname, CDR(__VA_ARGS__) }
-#define DEEP_TYPE(code,rrt,fmt,memb,parser,comparer,printer) \
- { adns_r_##code, rrt,fmt,TYPESZ_M(memb), mf_##memb, \
- printer,parser,comparer, adns__qdpl_normal,0 }
-#define FLAT_TYPE(code,rrt,fmt,memb,parser,comparer,printer) \
- { adns_r_##code, rrt,fmt,TYPESZ_M(memb), mf_flat, \
- printer,parser,comparer, adns__qdpl_normal,0 }
-#define XTRA_TYPE(code,rrt,fmt,memb,parser,comparer,printer,qdpl,postsort) \
- { adns_r_##code, rrt,fmt,TYPESZ_M(memb), mf_##memb, \
- printer,parser,comparer,qdpl,postsort }
+#define di_0 0
static const typeinfo typeinfos[] = {
/* Must be in ascending order of rrtype ! */
/* mem-mgmt code rrt fmt member parser comparer printer */
-FLAT_TYPE(a, "A", 0, inaddr, pa_inaddr, di_inaddr,cs_inaddr ),
-DEEP_TYPE(ns_raw, "NS", "raw",str, pa_host_raw,0, cs_domain ),
-DEEP_TYPE(cname, "CNAME", 0, str, pa_dom_raw, 0, cs_domain ),
-DEEP_TYPE(soa_raw,"SOA", "raw",soa, pa_soa, 0, cs_soa ),
-DEEP_TYPE(ptr_raw,"PTR", "raw",str, pa_host_raw,0, cs_domain ),
-DEEP_TYPE(hinfo, "HINFO", 0, intstrpair,pa_hinfo, 0, cs_hinfo ),
-DEEP_TYPE(mx_raw, "MX", "raw",intstr, pa_mx_raw, di_mx_raw,cs_inthost ),
-DEEP_TYPE(txt, "TXT", 0, manyistr,pa_txt, 0, cs_txt ),
-DEEP_TYPE(rp_raw, "RP", "raw",strpair, pa_rp, 0, cs_rp ),
-XTRA_TYPE(srv_raw,"SRV", "raw",srvraw , pa_srvraw, di_srv, cs_srvraw,
- qdpl_srv, postsort_srv),
-
-FLAT_TYPE(addr, "A", "addr", addr, pa_addr, di_addr, cs_addr ),
-DEEP_TYPE(ns, "NS", "+addr",hostaddr,pa_hostaddr,di_hostaddr,cs_hostaddr ),
-DEEP_TYPE(ptr, "PTR","checked",str, pa_ptr, 0, cs_domain ),
-DEEP_TYPE(mx, "MX", "+addr",inthostaddr,pa_mx, di_mx, cs_inthostaddr),
-XTRA_TYPE(srv, "SRV","+addr",srvha, pa_srvha, di_srv, cs_srvha,
- qdpl_srv, postsort_srv),
-
-DEEP_TYPE(soa, "SOA","822", soa, pa_soa, 0, cs_soa ),
-DEEP_TYPE(rp, "RP", "822", strpair, pa_rp, 0, cs_rp ),
+FLAT_TYPE(a, "A", 0, inaddr, inaddr, inaddr,inaddr ),
+DEEP_TYPE(ns_raw, "NS", "raw",str, host_raw,0, domain ),
+DEEP_TYPE(cname, "CNAME", 0, str, dom_raw, 0, domain ),
+DEEP_TYPE(soa_raw,"SOA", "raw",soa, soa, 0, soa ),
+DEEP_TYPE(ptr_raw,"PTR", "raw",str, host_raw,0, domain ),
+DEEP_TYPE(hinfo, "HINFO", 0, intstrpair,hinfo, 0, hinfo ),
+DEEP_TYPE(mx_raw, "MX", "raw",intstr, mx_raw, mx_raw,inthost ),
+DEEP_TYPE(txt, "TXT", 0, manyistr, txt, 0, txt ),
+DEEP_TYPE(rp_raw, "RP", "raw",strpair, rp, 0, rp ),
+DEEP_TYPE(srv_raw,"SRV", "raw",srvraw , srvraw, srv, srvraw,
+ .checklabel= ckl_srv, .postsort= postsort_srv),
+
+FLAT_TYPE(addr, "A", "addr", addr, addr, addr, addr ),
+DEEP_TYPE(ns, "NS", "+addr",hostaddr, hostaddr,hostaddr,hostaddr ),
+DEEP_TYPE(ptr, "PTR","checked",str, ptr, 0, domain,
+ .checklabel= ckl_ptr),
+DEEP_TYPE(mx, "MX", "+addr",inthostaddr,mx, mx, inthostaddr, ),
+DEEP_TYPE(srv, "SRV","+addr",srvha, srvha, srv, srvha,
+ .checklabel= ckl_srv, .postsort= postsort_srv),
+
+DEEP_TYPE(soa, "SOA","822", soa, soa, 0, soa ),
+DEEP_TYPE(rp, "RP", "822", strpair, rp, 0, rp ),
};
+static const typeinfo typeinfo_unknown=
+DEEP_TYPE(unknown,0, "unknown",byteblock,opaque, 0, opaque );
+
const typeinfo *adns__findtype(adns_rrtype type) {
const typeinfo *begin, *end, *mid;
+ if (type & adns_r_unknown) return &typeinfo_unknown;
+ type &= adns_rrt_reprmask;
+
begin= typeinfos; end= typeinfos+(sizeof(typeinfos)/sizeof(typeinfo));
while (begin < end) {
mid= begin + ((end-begin)>>1);
- if (mid->type == type) return mid;
- if (type > mid->type) begin= mid+1;
+ if (mid->typekey == type) return mid;
+ if (type > mid->typekey) begin= mid+1;
else end= mid;
}
return 0;
~ianmdlvl / adns.git / blobdiff