* _mx_raw (pa,di)
* _mx (pa,di)
* _inthostaddr (mf,cs)
+ * _ptr (pa)
* _flat (mf)
*
* within each section:
storeto->len= sizeof(storeto->addr.inet);
memset(&storeto->addr,0,sizeof(storeto->addr.inet));
storeto->addr.inet.sin_family= AF_INET;
- storeto->addr.inet.sin_port= 0;
memcpy(&storeto->addr.inet.sin_addr,dgram+cbyte,4);
return adns_s_ok;
}
}
static void icb_hostaddr(adns_query parent, adns_query child) {
- adns_rr_hostaddr *rrp= child->context.intern.info.hostaddr;
adns_answer *cans= child->answer;
+ adns_rr_hostaddr *rrp= child->ctx.info.hostaddr;
rrp->astatus= cans->status;
rrp->naddrs= cans->nrrs;
rrp->addrs= cans->rrs.addr;
adns__transfer_interim(child, parent, rrp->addrs, rrp->naddrs*sizeof(adns_rr_addr));
+
+ if (!parent->children.head) adns__query_done(parent);
}
static adns_status pap_hostaddr(const parseinfo *pai, int *cbyte_io,
adns_r_addr, adns_qf_quoteok_query);
if (st) return st;
- ctx.intern.callback= icb_hostaddr;
- ctx.intern.info.hostaddr= rrp;
+ ctx.ext= 0;
+ ctx.callback= icb_hostaddr;
+ ctx.info.hostaddr= rrp;
st= adns__internal_submit(pai->ads, &nqu, adns__findtype(adns_r_addr),
&pai->qu->vb, id,
adns_qf_quoteok_query, pai->now, 0, &ctx);
return csp_hostaddr(vb,&rrp->ha);
}
+/*
+ * _ptr (pa, +icb_ptr)
+ */
+
+static void icb_ptr(adns_query parent, adns_query child) {
+ adns_answer *cans= child->answer;
+ const adns_rr_addr *queried, *found;
+ int i;
+
+ if (cans->status == adns_s_nxdomain || cans->status == adns_s_nodata) {
+ adns__query_fail(parent,adns_s_inconsistent);
+ return;
+ } else if (cans->status) {
+ adns__query_fail(parent,cans->status);
+ 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)) {
+ if (!parent->children.head) adns__query_done(parent);
+ return;
+ }
+ }
+
+ adns__query_fail(parent,adns_s_inconsistent);
+}
+
+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;
+ adns_query nqu;
+ qcontext ctx;
+
+ cbyte= dmstart;
+ st= pap_domain(pai, &cbyte, max, rrp,
+ pai->qu->flags & adns_qf_quoteok_anshost ? pdf_quoteok : 0);
+ 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_invalidquerydomain;
+ memcpy(labbuf, pai->qu->query_dgram + labstart, lablen); labbuf[lablen]= 0;
+ ipv[3-i]= strtoul(labbuf,&ep,10); if (*ep) return adns_s_invalidquerydomain;
+ if (lablen>1 && pai->qu->query_dgram[labstart]=='0')
+ return adns_s_invalidquerydomain;
+ }
+ 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_invalidquerydomain;
+ }
+ st= adns__findlabel_next(&fls,&lablen,0); assert(!st);
+ if (lablen) return adns_s_invalidquerydomain;
+
+ 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);
+ 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, 0, &ctx);
+ if (st) return st;
+
+ nqu->parent= pai->qu;
+ LIST_LINK_TAIL_PART(pai->qu->children,nqu,siblings.);
+
+ return adns_s_ok;
+}
+
/*
* _flat (mf)
*/
FLAT_TYPE(addr, "A", "addr", addr, pa_addr, di_addr ),
DEEP_TYPE(ns, "NS", "+addr", hostaddr, pa_hostaddr, di_hostaddr ),
-#if 0
DEEP_TYPE(ptr, "PTR","checked", str, pa_ptr, 0 ),
-#endif
DEEP_TYPE(mx, "MX", "+addr", inthostaddr, pa_mx, di_mx ),
#if 0