static int send_getnodes(const Group_Chat *chat, IP_Port ip_port, int peernum)
{
if ((uint32_t)peernum >= chat->numpeers)
return -1;
if (!is_timeout(chat->group[peernum].last_pinged, GROUP_PING_TIMEOUT))
return -1;
getnodes_data contents;
contents.pingid = random_64b();
chat->group[peernum].last_pinged = unix_time();
chat->group[peernum].pingid = contents.pingid;
chat->group[peernum].ping_via = ip_port;
if (chat->assoc) {
IPPTs ippts;
ippts.timestamp = unix_time();
ippts.ip_port = ip_port;
Assoc_add_entry(chat->assoc, chat->group[peernum].client_id, &ippts, NULL, 1);
}
return send_groupchatpacket(chat, ip_port, chat->group[peernum].client_id, (uint8_t *)&contents, sizeof(contents),
CRYPTO_PACKET_GROUP_CHAT_GET_NODES);
}
/*
* Send data to all peers in close peer list.
*
* return the number of peers the packet was sent to.
*/
static uint8_t sendto_allpeers(Group_Chat *chat, uint8_t *data, uint16_t length, uint8_t request_id)
{
uint16_t sent = 0;
uint32_t i;
for (i = 0; i < GROUP_CLOSE_CONNECTIONS; ++i) {
if (ip_isset(&chat->close[i].ip_port.ip) &&
!is_timeout(chat->close[i].last_recv, BAD_GROUPNODE_TIMEOUT)) {
if (send_groupchatpacket(chat, chat->close[i].ip_port, chat->close[i].client_id,
data, length, request_id) == 0)
++sent;
}
}
return sent;
}
static int send_getnodes(Group_Chat *chat, IP_Port ip_port, int peernum)
{
if ((uint32_t)peernum >= chat->numpeers)
return -1;
if (!is_timeout(chat->group[peernum].last_pinged, PING_TIMEOUT))
return -1;
getnodes_data contents;
contents.pingid = ((uint64_t)random_int() << 32) + random_int();
chat->group[peernum].last_pinged = unix_time();
chat->group[peernum].pingid = contents.pingid;
return send_groupchatpacket(chat, ip_port, chat->group[peernum].client_id, (uint8_t *)&contents, sizeof(contents), 48);
}
static int send_sendnodes(Group_Chat *chat, IP_Port ip_port, int peernum, uint64_t pingid)
{
if ((uint32_t)peernum >= chat->numpeers)
return -1;
sendnodes_data contents;
contents.pingid = pingid;
uint32_t i, j = 0;
for (i = 0; i < GROUP_CLOSE_CONNECTIONS; ++i) {
if (!is_timeout(chat->close[i].last_recv, BAD_GROUPNODE_TIMEOUT)) {
id_copy(contents.nodes[j].client_id, chat->close[i].client_id);
contents.nodes[j].ip_port = chat->close[i].ip_port;
++j;
}
}
return send_groupchatpacket(chat, ip_port, chat->group[peernum].client_id, (uint8_t *)&contents,
sizeof(contents.pingid) + sizeof(groupchat_nodes) * j, CRYPTO_PACKET_GROUP_CHAT_SEND_NODES);
}
