More Functions.

This commit is contained in:
irungentoo 2013-06-24 08:59:42 -04:00
parent 7e341fb171
commit 388c0f38f7
2 changed files with 56 additions and 14 deletions

View File

@ -9,8 +9,42 @@ int sendpacket(IP_Port ip_port, char * data, uint32_t length)
return sendto(sock, data, length, 0, (struct sockaddr *)&addr, sizeof(addr));
}
//Attempt to add client with ip_port and client_id to the friends client list and close_clientlist
int addto_lists(IP_Port ip_port, char * client_id)
{
}
//send a ping request
//Currently incomplete: missing the ping_id part
int pingreq(IP_Port ip_port)
{
char data[37];
data[0] = 0;
memcpy(data + 5, self_client_id, 32);
sendpacket(ip_port, data, sizeof(data));
}
//send a ping response
//Currently incomplete: missing the ping_id part
int pingres(IP_Port ip_port, uint32_t ping_id)
{
char data[37];
data[0] = 1;
memcpy(data + 1, &ping_id, 4);
memcpy(data + 5, self_client_id, 32);
sendpacket(ip_port, data, sizeof(data));
}
//send a getnodes request
//Currently incomplete: missing the ping_id part
int getnodes(IP_Port ip_port, char * client_id)
@ -24,26 +58,32 @@ int getnodes(IP_Port ip_port, char * client_id)
sendpacket(ip_port, data, sizeof(data));
}
//send a ping request
//send a getnodes request
//Currently incomplete: missing the ping_id part
int ping(IP_Port ip_port)
int sendnodes(IP_Port ip_port, char * client_id)
{
char data[37];
data[0] = 0;
char data[325];
data[0] = 3;
memcpy(data + 5, self_client_id, 32);
memcpy(data + 37, client_id, 32);
sendpacket(ip_port, data, sizeof(data));
}
//Packet handling functions
//One to handle each types of packets
int handle_pingreq(char * packet, uint32_t length, IP_Port source)
{
uint32_t ping_id;
memcpy(&ping_id, packet + 1, 4);
pingres(source, ping_id);
}
@ -108,18 +148,20 @@ void DHT_recvpacket(char * packet, uint32_t length, IP_Port source)
switch (packet[0]) {
case 0:
handle_pingreq(packet, length, source);
//TODO: try to add requesting node to client_list if packet is valid
break;
case 1:
handle_pingres(packet, length, source);
break;
case 2:
handle_getnodes(packet, length, source);
//TODO: try to add requesting node to client_list if packet is valid
break;
case 3:
handle_sendnodes(packet, length, source);
break;
default:
break;
return;
}
@ -142,8 +184,7 @@ void doDHT()
void bootstrap(IP_Port ip_port)
{
getnodes(ip_port, self_client_id);
}

View File

@ -116,9 +116,10 @@ char self_client_id[32];
//We only use one so it's much easier to have it as a global variable
int sock;
//A list of the clients mathematically closest to ours.
#define LCLIENT_LIST 32
Client_data close_clientlist[LCLIENT_LIST];
Client_data client_list[LCLIENT_LIST];
//Let's start with a static array for testing.
Friend friends_list[256];