/* the main loop that needs to be run at least 200 times per second. */
void doMessenger()
{
IP_Port ip_port;
uint8_t data[MAX_UDP_PACKET_SIZE];
uint32_t length;
while (receivepacket(&ip_port, data, &length) != -1) {
#ifdef DEBUG
/* if(rand() % 3 != 1) //simulate packet loss */
/* { */
if (DHT_handlepacket(data, length, ip_port) && LosslessUDP_handlepacket(data, length, ip_port) &&
friendreq_handlepacket(data, length, ip_port) && LANdiscovery_handlepacket(data, length, ip_port))
/* if packet is discarded */
printf("Received unhandled packet with length: %u\n", length);
else
printf("Received handled packet with length: %u\n", length);
/* } */
printf("Status: %u %u %u\n",friendlist[0].status ,is_cryptoconnected(friendlist[0].crypt_connection_id), friendlist[0].crypt_connection_id);
#else
DHT_handlepacket(data, length, ip_port);
LosslessUDP_handlepacket(data, length, ip_port);
friendreq_handlepacket(data, length, ip_port);
LANdiscovery_handlepacket(data, length, ip_port);
#endif
}
doDHT();
doLossless_UDP();
doNetCrypto();
doInbound();
doFriends();
LANdiscovery();
}
int main(int argc, char *argv[])
{
//memcpy(self_client_id, "qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq", 32);
if (argc < 4) {
printf("usage %s ip port client_id(of friend to find ip_port of)\n", argv[0]);
exit(0);
}
DHT_addfriend((uint8_t *)argv[3]);
//initialize networking
//bind to ip 0.0.0.0:PORT
IP ip;
ip.i = 0;
init_networking(ip, PORT);
int randdomnum = random_int();
memcpy(self_client_id, &randdomnum, 4);
perror("Initialization");
IP_Port bootstrap_ip_port;
bootstrap_ip_port.port = htons(atoi(argv[2]));
//bootstrap_ip_port.ip.c[0] = 127;
//bootstrap_ip_port.ip.c[1] = 0;
//bootstrap_ip_port.ip.c[2] = 0;
//bootstrap_ip_port.ip.c[3] = 1;
bootstrap_ip_port.ip.i = inet_addr(argv[1]);
DHT_bootstrap(bootstrap_ip_port);
IP_Port ip_port;
uint8_t data[MAX_UDP_PACKET_SIZE];
uint32_t length;
while(1)
{
doDHT();
while(receivepacket(&ip_port, data, &length) != -1)
{
if(DHT_handlepacket(data, length, ip_port))
{
//unhandled packet
printpacket(data, length, ip_port);
}
else
{
printf("Received handled packet with length: %u\n", length);
}
}
print_clientlist();
print_friendlist();
c_sleep(300);
}
shutdown_networking();
return 0;
}
int main(int argc, char *argv[])
{
manage_keys();
printf("Public key: ");
uint32_t i;
for(i = 0; i < 32; i++)
{
if(self_public_key[i] < 16)
printf("0");
printf("%hhX",self_public_key[i]);
}
printf("\n");
printf("Port: %u\n", PORT);
//initialize networking
//bind to ip 0.0.0.0:PORT
IP ip;
ip.i = 0;
init_networking(ip, PORT);
perror("Initialization");
if (argc > 3) {
printf("Trying to bootstrap into the network...\n");
IP_Port bootstrap_info;
bootstrap_info.ip.i = inet_addr(argv[1]);
bootstrap_info.port = htons(atoi(argv[2]));
uint8_t *bootstrap_key = hex_string_to_bin(argv[3]);
DHT_bootstrap(bootstrap_info, bootstrap_key);
free(bootstrap_key);
}
IP_Port ip_port;
uint8_t data[MAX_UDP_PACKET_SIZE];
uint32_t length;
int is_waiting_for_dht_connection = 1;
while(1)
{
if (is_waiting_for_dht_connection && DHT_isconnected())
{
printf("Connected to other bootstrap server successfully.\n");
is_waiting_for_dht_connection = 0;
}
doDHT();
while(receivepacket(&ip_port, data, &length) != -1)
{
DHT_handlepacket(data, length, ip_port);
friendreq_handlepacket(data, length, ip_port);
}
c_sleep(1);
}
shutdown_networking();
return 0;
}
int main(int argc, char *argv[])
{
//memcpy(self_client_id, "qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq", 32);
if (argc < 4) {
printf("usage %s ip port public_key\n", argv[0]);
exit(0);
}
new_keys();
printf("OUR ID: ");
uint32_t i;
for(i = 0; i < 32; i++) {
if(self_public_key[i] < 16)
printf("0");
printf("%hhX",self_public_key[i]);
}
char temp_id[128];
printf("\nEnter the client_id of the friend you wish to add (32 bytes HEX format):\n");
if(scanf("%s", temp_id) != 1)
exit(0);
DHT_addfriend(hex_string_to_bin(temp_id));
/* initialize networking */
/* bind to ip 0.0.0.0:PORT */
IP ip;
ip.i = 0;
init_networking(ip, PORT);
perror("Initialization");
IP_Port bootstrap_ip_port;
bootstrap_ip_port.port = htons(atoi(argv[2]));
/* bootstrap_ip_port.ip.c[0] = 127;
* bootstrap_ip_port.ip.c[1] = 0;
* bootstrap_ip_port.ip.c[2] = 0;
* bootstrap_ip_port.ip.c[3] = 1; */
bootstrap_ip_port.ip.i = inet_addr(argv[1]);
DHT_bootstrap(bootstrap_ip_port, hex_string_to_bin(argv[3]));
IP_Port ip_port;
uint8_t data[MAX_UDP_PACKET_SIZE];
uint32_t length;
while(1) {
doDHT();
while(receivepacket(&ip_port, data, &length) != -1) {
if(DHT_handlepacket(data, length, ip_port) && friendreq_handlepacket(data, length, ip_port)) {
//unhandled packet
printpacket(data, length, ip_port);
} else {
printf("Received handled packet with length: %u\n", length);
}
}
print_clientlist();
print_friendlist();
c_sleep(300);
}
shutdown_networking();
return 0;
}
int main(int argc, char *argv[])
{
if (argc < 4) {
printf("usage %s ip port filename(of file to send)\n", argv[0]);
exit(0);
}
new_keys();
printf("OUR ID: ");
uint32_t i;
for(i = 0; i < 32; i++) {
if(self_public_key[i] < 16)
printf("0");
printf("%hhX",self_public_key[i]);
}
printf("\n");
memcpy(self_client_id, self_public_key, 32);
char temp_id[128];
printf("Enter the client_id of the friend to connect to (32 bytes HEX format):\n");
scanf("%s", temp_id);
uint8_t friend_id[32];
memcpy(friend_id, hex_string_to_bin(temp_id), 32);
/* memcpy(self_client_id, "qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq", 32); */
DHT_addfriend(friend_id);
IP_Port friend_ip;
int connection = -1;
int inconnection = -1;
uint8_t acceptedfriend_public_key[crypto_box_PUBLICKEYBYTES];
int friendrequest = -1;
uint8_t request_data[512];
/* initialize networking
* bind to ip 0.0.0.0:PORT */
IP ip;
ip.i = 0;
init_networking(ip, PORT);
initNetCrypto();
perror("Initialization");
IP_Port bootstrap_ip_port;
bootstrap_ip_port.port = htons(atoi(argv[2]));
bootstrap_ip_port.ip.i = inet_addr(argv[1]);
DHT_bootstrap(bootstrap_ip_port);
IP_Port ip_port;
uint8_t data[MAX_UDP_PACKET_SIZE];
uint32_t length;
uint8_t buffer1[128];
int read1 = 0;
uint8_t buffer2[128];
int read2 = 0;
FILE *file1 = fopen(argv[3], "rb");
if ( file1==NULL ){printf("Error opening file.\n");return 1;}
FILE *file2 = fopen("received.txt", "wb");
if ( file2==NULL ){return 1;}
read1 = fread(buffer1, 1, 128, file1);
while(1) {
while(receivepacket(&ip_port, data, &length) != -1) {
if(rand() % 3 != 1) { /* simulate packet loss */
if(DHT_handlepacket(data, length, ip_port) && LosslessUDP_handlepacket(data, length, ip_port)) {
/* if packet is not recognized */
printf("Received unhandled packet with length: %u\n", length);
} else {
printf("Received handled packet with length: %u\n", length);
}
}
}
friend_ip = DHT_getfriendip(friend_id);
if(friend_ip.ip.i != 0) {
if(connection == -1 && friendrequest == -1) {
printf("Sending friend request to peer:");
printip(friend_ip);
friendrequest = send_friendrequest(friend_id, friend_ip,(uint8_t *) "Hello World", 12);
/* connection = crypto_connect((uint8_t *)friend_id, friend_ip); */
/* connection = new_connection(friend_ip); */
}
if(check_friendrequest(friendrequest) == 1) {
printf("Started connecting to friend:");
connection = crypto_connect(friend_id, friend_ip);
}
}
if(inconnection == -1) {
uint8_t secret_nonce[crypto_box_NONCEBYTES];
uint8_t public_key[crypto_box_PUBLICKEYBYTES];
uint8_t session_key[crypto_box_PUBLICKEYBYTES];
inconnection = crypto_inbound(public_key, secret_nonce, session_key);
inconnection = accept_crypto_inbound(inconnection, acceptedfriend_public_key, secret_nonce, session_key);
/* inconnection = incoming_connection(); */
if(inconnection != -1) {
printf("Someone connected to us:\n");
/* printip(connection_ip(inconnection)); */
}
}
if(handle_friendrequest(acceptedfriend_public_key, request_data) > 1) {
printf("RECIEVED FRIEND REQUEST: %s\n", request_data);
}
/* if someone connected to us write what he sends to a file
* also send him our file. */
if(inconnection != -1) {
if(write_cryptpacket(inconnection, buffer1, read1)) {
printf("Wrote data1.\n");
read1 = fread(buffer1, 1, 128, file1);
}
read2 = read_cryptpacket(inconnection, buffer2);
if(read2 != 0) {
printf("Received data1.\n");
if(!fwrite(buffer2, read2, 1, file2)) {
printf("file write error1\n");
}
if(read2 < 128) {
printf("Closed file1 %u\n", read2);
fclose(file2);
}
}
/* if buffer is empty and the connection timed out. */
else if(is_cryptoconnected(inconnection) == 4) {
crypto_kill(inconnection);
}
}
/* if we are connected to a friend send him data from the file.
* also put what he sends us in a file. */
if(is_cryptoconnected(connection) >= 3) {
if(write_cryptpacket(0, buffer1, read1)) {
printf("Wrote data2.\n");
read1 = fread(buffer1, 1, 128, file1);
}
read2 = read_cryptpacket(0, buffer2);
if(read2 != 0) {
printf("Received data2.\n");
if(!fwrite(buffer2, read2, 1, file2)) {
printf("file write error2\n");
}
if(read2 < 128) {
printf("Closed file2 %u\n", read2);
fclose(file2);
}
}
/* if buffer is empty and the connection timed out. */
else if(is_cryptoconnected(connection) == 4) {
crypto_kill(connection);
}
}
doDHT();
doLossless_UDP();
doNetCrypto();
/*print_clientlist();
*print_friendlist();
*c_sleep(300); */
c_sleep(1);
}
shutdown_networking();
return 0;
}
int main(int argc, char *argv[])
{
log_init();
srand(time(NULL));
int randdomnum = rand();
memcpy(self_client_id, &randdomnum, 4);
//memcpy(self_client_id, "qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq", 32);
if (argc < 4) {
printf("usage %s ip port client_id(of friend to find ip_port of)\n", argv[0]);
exit(0);
}
addfriend(argv[3]);
//initialize networking
//bind to ip 0.0.0.0:PORT
IP ip;
ip.i = 0;
if (init_networking(ip, PORT) == -1)
{
return 1;
}
perror("Initialization");
IP_Port bootstrap_ip_port;
bootstrap_ip_port.port = htons(atoi(argv[2]));
//bootstrap_ip_port.ip.c[0] = 127;
//bootstrap_ip_port.ip.c[1] = 0;
//bootstrap_ip_port.ip.c[2] = 0;
//bootstrap_ip_port.ip.c[3] = 1;
bootstrap_ip_port.ip.i = inet_addr(argv[1]);
bootstrap(bootstrap_ip_port);
IP_Port ip_port;
char data[MAX_UDP_PACKET_SIZE];
uint32_t length;
uint32_t i;
while(1)
{
doDHT();
while(recievepacket(&ip_port, data, &length) != -1)
{
if(DHT_handlepacket(data, length, ip_port))
{
printf("UNHANDLED PACKET RECEIVED\nLENGTH:%u\nCONTENTS:\n", length);
printf("--------------------BEGIN-----------------------------\n");
for(i = 0; i < length; i++)
{
if(data[i] < 16)
printf("0");
printf("%hhX",data[i]);
}
printf("\n--------------------END-----------------------------\n\n\n");
}
else
{
printf("Received handled packet with length: %u\n", length);
}
}
print_clientlist();
print_friendlist();
c_sleep(300);
}
exit_networking();
log_exit();
return 0;
}
int main(int argc, char *argv[])
{
//memcpy(self_client_id, "qqqqqqqqqqqqqqqqqqqqqqqqqqqqqqqq", 32);
if (argc < 6) {
printf("usage %s ip port client_id(of friend to find ip_port of) filename(of file to send) client_id(ours)\n", argv[0]);
exit(0);
}
addfriend(argv[3]);
IP_Port friend_ip;
int connection = -1;
int inconnection = -1;
//initialize networking
//bind to ip 0.0.0.0:PORT
IP ip;
ip.i = 0;
init_networking(ip, PORT);
memcpy(self_client_id, argv[5], 32);
perror("Initialization");
IP_Port bootstrap_ip_port;
bootstrap_ip_port.port = htons(atoi(argv[2]));
bootstrap_ip_port.ip.i = inet_addr(argv[1]);
bootstrap(bootstrap_ip_port);
IP_Port ip_port;
char data[MAX_UDP_PACKET_SIZE];
uint32_t length;
char buffer1[128];
int read1 = 0;
char buffer2[128];
int read2 = 0;
FILE *file1 = fopen(argv[4], "rb");
if ( file1==NULL ){printf("Error opening file.\n");return 1;}
FILE *file2 = fopen("received.txt", "wb");
if ( file2==NULL ){return 1;}
read1 = fread(buffer1, 1, 128, file1);
while(1)
{
while(recievepacket(&ip_port, data, &length) != -1)
{
if(rand() % 3 != 1)//simulate packet loss
{
if(DHT_handlepacket(data, length, ip_port) && LosslessUDP_handlepacket(data, length, ip_port))
{
//if packet is not recognized
printf("Received unhandled packet with length: %u\n", length);
}
else
{
printf("Received handled packet with length: %u\n", length);
}
}
}
friend_ip = getfriendip(argv[3]);
if(friend_ip.ip.i != 0)
{
if(connection == -1)
{
printf("Started connecting to friend:");
printip(friend_ip);
connection = new_connection(friend_ip);
}
}
if(inconnection == -1)
{
inconnection = incoming_connection();
if(inconnection != -1)
{
printf("Someone connected to us:");
printip(connection_ip(inconnection));
}
}
//if someone connected to us write what he sends to a file
//also send him our file.
if(inconnection != -1)
{
if(write_packet(inconnection, buffer1, read1))
{
printf("Wrote data.\n");
read1 = fread(buffer1, 1, 128, file1);
}
read2 = read_packet(inconnection, buffer2);
if(read2 != 0)
{
printf("Received data.\n");
if(!fwrite(buffer2, read2, 1, file2))
{
printf("file write error\n");
}
if(read2 < 128)
{
fclose(file2);
}
}
}
//if we are connected to a friend send him data from the file.
//also put what he sends us in a file.
if(is_connected(connection) == 3)
{
if(write_packet(0, buffer1, read1))
{
printf("Wrote data.\n");
read1 = fread(buffer1, 1, 128, file1);
}
read2 = read_packet(0, buffer2);
if(read2 != 0)
{
printf("Received data.\n");
if(!fwrite(buffer2, read2, 1, file2))
{
printf("file write error\n");
}
if(read2 < 128)
{
fclose(file2);
}
}
}
doDHT();
doLossless_UDP();
//print_clientlist();
//print_friendlist();
//c_sleep(300);
c_sleep(1);
}
shutdown_networking();
return 0;
}
