static void
dns_query_v6_cb(struct dns_ctx *ctx, struct dns_rr_a6 *result, void *data)
{
struct ResolvQuery *cb_data = (struct ResolvQuery *)data;
if (result == NULL) {
if (verbose) {
LOGI("IPv6 resolv: %s", dns_strerror(dns_status(ctx)));
}
} else if (result->dnsa6_nrr > 0) {
struct sockaddr **new_responses = ss_realloc(cb_data->responses,
(cb_data->response_count +
result->dnsa6_nrr) *
sizeof(struct sockaddr *));
if (new_responses == NULL) {
LOGE("Failed to allocate memory for additional DNS responses");
} else {
cb_data->responses = new_responses;
for (int i = 0; i < result->dnsa6_nrr; i++) {
struct sockaddr_in6 *sa = ss_malloc(sizeof(struct sockaddr_in6));
memset(sa, 0, sizeof(struct sockaddr_in6));
sa->sin6_family = AF_INET6;
sa->sin6_port = cb_data->port;
sa->sin6_addr = result->dnsa6_addr[i];
cb_data->responses[cb_data->response_count] =
(struct sockaddr *)sa;
if (cb_data->responses[cb_data->response_count] == NULL) {
LOGE(
"Failed to allocate memory for DNS query result address");
} else {
cb_data->response_count++;
}
}
}
}
ss_free(result);
cb_data->queries[1] = NULL; /* mark AAAA query as being completed */
/* Once all queries have completed, call client callback */
if (all_queries_are_null(cb_data)) {
return process_client_callback(cb_data);
}
}
static void
dns_query_v6_cb(void *arg, int status, int timeouts, struct hostent *he)
{
int i, n;
struct resolv_query *query = (struct resolv_query *)arg;
if (status == ARES_EDESTRUCTION) {
return;
}
if (!he || status != ARES_SUCCESS) {
if (verbose) {
LOGI("failed to lookup v6 address %s", ares_strerror(status));
}
goto CLEANUP;
}
if (verbose) {
LOGI("found address name v6 address %s", he->h_name);
}
n = 0;
while (he->h_addr_list[n])
n++;
if (n > 0) {
struct sockaddr **new_responses = ss_realloc(query->responses,
(query->response_count + n)
* sizeof(struct sockaddr *));
if (new_responses == NULL) {
LOGE("failed to allocate memory for additional DNS responses");
} else {
query->responses = new_responses;
for (i = 0; i < n; i++) {
struct sockaddr_in6 *sa = ss_malloc(sizeof(struct sockaddr_in6));
memset(sa, 0, sizeof(struct sockaddr_in6));
sa->sin6_family = AF_INET6;
sa->sin6_port = query->port;
memcpy(&sa->sin6_addr, he->h_addr_list[i], he->h_length);
query->responses[query->response_count] = (struct sockaddr *)sa;
if (query->responses[query->response_count] == NULL) {
LOGE("failed to allocate memory for DNS query result address");
} else {
query->response_count++;
}
}
}
}
CLEANUP:
query->requests[1] = 0; /* mark A query as being completed */
/* Once all requests have completed, call client callback */
if (all_requests_are_null(query)) {
return process_client_callback(query);
}
}
