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Add TXT record support

This commit is contained in:
Neel Goyal 2014-02-05 13:47:46 -05:00
parent ce74abc25a
commit 068092e276
1 changed files with 52 additions and 5 deletions
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51
src/rr-dict.c
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@ -569,8 +569,50 @@ priv_getdns_rr_type_name(int rr_type)
return rr_def_lookup(rr_type)->name;
}
/* list of txt records */
static getdns_return_t
priv_getdns_equip_dict_with_rdfs(struct getdns_dict *rdata, ldns_rr *rr)
priv_getdns_equip_dict_with_txt_rdfs(struct getdns_dict* rdata, ldns_rr* rr,
const struct rr_def* def,
struct getdns_context* context) {
size_t i;
struct getdns_bindata bindata;
getdns_return_t r = GETDNS_RETURN_GOOD;
struct getdns_list* records = getdns_list_create_with_context(context);
if (!records) {
return GETDNS_RETURN_MEMORY_ERROR;
}
for (i = 0; i < ldns_rr_rd_count(rr) && r == GETDNS_RETURN_GOOD; ++i) {
ldns_rdf* rdf = ldns_rr_rdf(rr, i);
int rdf_size = (int) ldns_rdf_size(rdf);
uint8_t* rdf_data = ldns_rdf_data(rdf);
if (rdf_size < 1) {
r = GETDNS_RETURN_GENERIC_ERROR;
continue;
}
int txt_size = (int) rdf_data[0] + 1;
if (rdf_size < txt_size) {
r = GETDNS_RETURN_GENERIC_ERROR;
continue;
}
bindata.size = txt_size;
bindata.data = rdf_data + 1;
r = getdns_list_set_bindata(records, i, &bindata);
}
if (r != GETDNS_RETURN_GOOD) {
getdns_list_destroy(records);
} else {
r = getdns_dict_set_list(rdata, def->rdata[0].name, records);
if (r != GETDNS_RETURN_GOOD) {
getdns_list_destroy(records);
}
}
return r;
}
static getdns_return_t
priv_getdns_equip_dict_with_rdfs(struct getdns_dict *rdata, ldns_rr *rr,
struct getdns_context* context)
{
getdns_return_t r = GETDNS_RETURN_GOOD;
const struct rr_def *def;
@ -582,6 +624,11 @@ priv_getdns_equip_dict_with_rdfs(struct getdns_dict *rdata, ldns_rr *rr)
assert(rr);
def = rr_def_lookup(ldns_rr_get_type(rr));
/* specialty handlers */
if (def->rdata == txt_rdata) {
return priv_getdns_equip_dict_with_txt_rdfs(rdata, rr, def, context);
}
/* generic */
for (i = 0; i < ldns_rr_rd_count(rr) && r == GETDNS_RETURN_GOOD; i++) {
if (i >= def->n_rdata_fields)
break;
@ -659,7 +706,7 @@ priv_getdns_create_dict_from_rdfs(
break;
/* Now set the RR type specific attributes */
r = priv_getdns_equip_dict_with_rdfs(*rdata, rr);
r = priv_getdns_equip_dict_with_rdfs(*rdata, rr, context);
if (r == GETDNS_RETURN_GOOD)
return r;
} while(0);