* _mx (pa,di)
* _inthostaddr (mf,cs)
* _inthost (cs)
- * _ptr (pa)
+ * _ptr (ckl,pa +icb_ptr)
* _strpair (mf)
* _intstrpair (mf)
* _hinfo (pa)
* _mailbox (pap,csp +pap_mailbox822)
* _rp (pa,cs)
* _soa (pa,mf,cs)
- * _srv* (qdpl,(pap),pa*2,mf*2,di,(csp),cs*2,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_*
}
/*
- * _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 };
+ adns_rr_addr *ap;
+ 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;
+ ap= &ctx->tinfo.ptr_addr;
+ 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((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;
static adns_status pa_ptr(const parseinfo *pai, int dmstart,
int max, void *datap) {
- static const char *const (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.tinfo.ptr_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);
}
/*
- * _srv* (qdpl,(pap),pa*2,mf*2,di,(csp),cs*2,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;
+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;
}
- 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;
- }
- 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_io, int max,
#define DEEP_TYPE(code,rrt,fmt,memb,parser,comparer,/*printer*/...) \
{ adns_r_##code, rrt,fmt,TYPESZ_M(memb), mf_##memb, \
GLUE(cs_, CAR(__VA_ARGS__)),pa_##parser,di_##comparer, \
- adns__qdpl_normal, CDR(__VA_ARGS__) }
+ adns__ckl_hostname, CDR(__VA_ARGS__) }
#define FLAT_TYPE(code,rrt,fmt,memb,parser,comparer,/*printer*/...) \
{ adns_r_##code, rrt,fmt,TYPESZ_M(memb), mf_flat, \
GLUE(cs_, CAR(__VA_ARGS__)),pa_##parser,di_##comparer, \
- adns__qdpl_normal, CDR(__VA_ARGS__) }
+ adns__ckl_hostname, CDR(__VA_ARGS__) }
#define di_0 0
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,
- .qdparselabel= qdpl_srv, .postsort= postsort_srv),
+ .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 ),
+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,
- .qdparselabel= qdpl_srv, .postsort= postsort_srv),
+ .checklabel= ckl_srv, .postsort= postsort_srv),
DEEP_TYPE(soa, "SOA","822", soa, soa, 0, soa ),
DEEP_TYPE(rp, "RP", "822", strpair, rp, 0, rp ),