5 static adns_status rp_inaddr(adns_state ads, adns_query qu, int serv,
6 const byte *dgram, int dglen, int cbyte, int max,
8 struct in_addr *dr= store_r;
10 if (max-cbyte != 4) return adns_s_invaliddata;
11 memcpy(dr,dgram+cbyte,4);
15 static adns_status rmf_null(adns_state ads, adns_query qu, void *data) { }
17 #define TYPE_SF(size,func,free) size, rp_#func, rmf_#free
18 #define TYPE_SN(size,func) size, rp_#func, rmf_null
19 #define TYPESZ_M(member) (sizeof(((adns_answer*)0)->rrs.member))
20 #define TYPE_MF(member,parse) TYPE_SF(TYPESZ_M(member),parse,member)
21 #define TYPE_MN(member,parse) TYPE_SN(TYPESZ_M(member),parse)
24 * ms is M specify member name
25 * or S specify size explicitly
26 * nf is F full memory management, dependent on member name or specified func
27 * N no memory management required
30 static const typeinfo typeinfos[] = {
31 /* Must be in ascending order of rrtype ! */
32 /* rr type code name style member size parser */
34 { adns_r_a, "A", TYPE_MN( inaddr, inaddr ) },
36 { adns_r_ns_raw, "NS(raw)", TYPE_MF( str, domain_raw ) },
37 { adns_r_cname, "CNAME", TYPE_MF( str, domain_raw ) },
38 { adns_r_soa_raw, "SOA(raw)", TYPE_MF( soa, soa ) },
39 { adns_r_null, "NULL", TYPE_SN( 0, null ) },
40 { adns_r_ptr_raw, "PTR(raw)", TYPE_MF( str, domain_raw ) },
41 { adns_r_hinfo, "HINFO", TYPE_MF( strpair, hinfo ) },
42 { adns_r_mx_raw, "MX(raw)", TYPE_MF( intstr, mx_raw ) },
43 { adns_r_txt, "TXT", TYPE_MF( str, txt ) },
44 { adns_r_rp_raw, "RP(raw)", TYPE_MF( strpair, rp ) },
46 { adns_r_ns, "NS(+addr)", TYPE_MF( dmaddr, dmaddr ) },
47 { adns_r_ptr, "PTR(checked)", TYPE_MF( str, ptr ) },
48 { adns_r_mx, "MX(+addr)", TYPE_MF( intdmaddr, mx ) },
50 { adns_r_soa, "SOA(822)", TYPE_MF( soa, soa ) },
51 { adns_r_rp, "RP(822)", TYPE_MF( strpair, rp ) },
55 const typeinfo adns__findtype(adns_rrtype type) {
56 const typeinfo *begin, *end;
58 begin= typeinfos; end= typeinfos+(sizeof(typeinfos)/sizeof(typeinfo));
61 mid= begin + ((end-begin)>>1);
62 if (mid->type == type) return mid;
63 if (type > mid->type) begin= mid+1;