void receive_file(int sockfd)
{
char str[30];
const int on = 1;
int flags = 0;
int sequence_number = 0;
size_t n = 1;
// Send the initial window size to the server
send_packet.window_size = cdata.sliding_window_size;
Send(sockfd, &send_packet, sizeof(send_packet), 0);
// Receive the packets in a loop and send ACK
while(n > 0)
{
n = Recv(sockfd, &recv_packet, sizeof(recv_packet), 0);
add_packet_to_buffer(&recv_packet);
read_packet_from_buffer();
// Send ACK to the server
send_packet.seq = sequence_number;
send_packet.last_flag = recv_packet.last_flag;
send_packet.window_size = current_window_size;
send_packet.ack = recv_packet.seq + 1;
Send(sockfd, &send_packet, sizeof(send_packet), flags);
if(recv_packet.last_flag == 1)
{
printf("\n[INFO]Last flag set\n");
break;
}
}
}
int
ipc_evaluate_message(union olsr_message *olsr_in)
{
int ipc_pack = 0;
olsr_u8_t type;
int msgsize;
char itoa_buf[10];
olsr_u8_t vtime;
union olsr_ip_addr *originator;
/* Find size, vtime, originator and type - same for IPv4 and 6 */
type = olsr_in->v4.olsr_msgtype;
msgsize = ntohs(olsr_in->v4.olsr_msgsize);
vtime = olsr_in->v4.olsr_vtime;
originator = (union olsr_ip_addr *)&olsr_in->v4.originator;
gui_itoa(msgsize, itoa_buf);
switch (type) {
case HELLO_MESSAGE:
//printf("Received HELLO packet\n");
if (!freeze_packets)
packet_list_add("HELLO", ip_to_string(originator), itoa_buf);
if (ipversion == AF_INET) {
process_hello(msgsize, vtime, originator, (union hello_message *)&olsr_in->v4.message.hello);
} else {
process_hello(msgsize, vtime, originator, (union hello_message *)&olsr_in->v6.message.hello);
}
break;
case TC_MESSAGE:
if (!freeze_packets)
packet_list_add("TC", ip_to_string(originator), itoa_buf);
if (ipversion == AF_INET) {
process_tc(msgsize, vtime, originator, (union tc_message *)&olsr_in->v4.message.tc);
//printf("Received TC packet from %s\n", ip_to_string(&m->olsr_tc->tc_origaddr));
} else {
process_tc(msgsize, vtime, originator, (union tc_message *)&olsr_in->v6.message.tc);
//printf("Received TC packet from %s\n", ip_to_string(&m->olsr_tc->tc_origaddr));
}
break;
case MID_MESSAGE:
if (!freeze_packets)
packet_list_add("MID", ip_to_string(originator), itoa_buf);
if (ipversion == AF_INET) {
process_mid(msgsize, vtime, originator, (union mid_message *)&olsr_in->v4.message.mid);
//printf("Received MID packet from %s\n", ip_to_string(&m->olsr_mid->mid_origaddr));
} else {
process_mid(msgsize, vtime, originator, (union mid_message *)&olsr_in->v6.message.mid);
//printf("Received MID packet from %s\n", ip_to_string(&m->olsr_mid->mid_origaddr));
}
break;
case HNA_MESSAGE:
if (!freeze_packets)
packet_list_add("HNA", ip_to_string(originator), itoa_buf);
if (ipversion == AF_INET) {
process_hna(msgsize, vtime, originator, (union hna_message *)&olsr_in->v4.message.hna);
//printf("Received HNA packet\n");
} else {
process_hna(msgsize, vtime, originator, (union hna_message *)&olsr_in->v6.message.hna);
//printf("Received HNA packet\n");
}
break;
case IPC_MESSAGE:
//printf("Received IPC packet\n");
ipc_pack = 1; /* Don't add to buffer */
ipc_eval_route_packet((struct routemsg *)olsr_in);
break;
case IPC_NET:
//printf("Received IPC packet\n");
ipc_pack = 1; /* Don't add to buffer */
ipc_eval_net_info((struct netmsg *)olsr_in);
break;
default:
if (!freeze_packets) {
char unk_label[8];
sprintf(unk_label, "%d", type);
packet_list_add(unk_label, ip_to_string(originator), itoa_buf);
}
printf("Unknown packet type %d\n", type);
break;
}
if (!freeze_packets && !ipc_pack) {
add_packet_to_buffer(olsr_in, msgsize);
}
return 1;
}
