struct peer_manager *peerman_seed(bool use_dns)
{
struct peer_manager *peers;
peers = peerman_new();
if (!peers)
return NULL;
/* make DNS query for seed data */
clist *tmp, *seedlist = NULL;
if (use_dns)
seedlist = bu_dns_seed_addrs();
log_debug("peerman: DNS returned %zu addresses",
clist_length(seedlist));
clist_shuffle(seedlist);
/* import seed data into peerman */
tmp = seedlist;
while (tmp) {
struct bp_address *addr = tmp->data;
tmp = tmp->next;
peerman_add_addr(peers, addr, true);
free(addr);
}
clist_free(seedlist);
return peers;
}
static void list_dns_seeds(void)
{
GList *tmp, *addrlist = bu_dns_seed_addrs();
size_t list_len = g_list_length(addrlist);
unsigned int n_ent = 0;
printf("[\n");
for (tmp = addrlist; tmp != NULL; tmp = tmp->next) {
struct bp_address *addr = tmp->data;
char host[64];
bool is_ipv4 = is_ipv4_mapped(addr->ip);
if (is_ipv4) {
struct sockaddr_in saddr;
memset(&saddr, 0, sizeof(saddr));
saddr.sin_family = AF_INET;
memcpy(&saddr.sin_addr, &addr->ip[12], 4);
getnameinfo((struct sockaddr *) &saddr, sizeof(saddr),
host, sizeof(host),
NULL, 0, NI_NUMERICHOST);
} else {
struct sockaddr_in6 saddr;
memset(&saddr, 0, sizeof(saddr));
saddr.sin6_family = AF_INET6;
memcpy(&saddr.sin6_addr, &addr->ip, 16);
getnameinfo((struct sockaddr *) &saddr, sizeof(saddr),
host, sizeof(host),
NULL, 0, NI_NUMERICHOST);
}
printf(" [ %s, \"%s\", %u, %llu ]%s\n",
is_ipv4 ? "true" : "false",
host,
addr->port,
(unsigned long long) addr->nServices,
(n_ent == (list_len - 1)) ? "" : ",");
n_ent++;
}
g_list_free_full(addrlist, g_free);
printf("]\n");
}
