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/* DHT sendfiletest
*
* Sends the data from a file to another client.
* Receives the file data that that client sends us.
*
* NOTE: this program simulates 33% packet loss.
*
* Compile with: gcc -O2 -Wall -o test ../core/DHT.c ../core/network.c ../core/Lossless_UDP.c DHT_sendfiletest.c
*
* Command line arguments are the ip and port of a node (for bootstrapping), the
* client_id (32 bytes) of the friend you want to send the data in filename to and
* the client_id this node will take.
*
* Saves all received data to: received.txt
*
* EX: ./test 127.0.0.1 33445 ABCDEFGHIJKLMNOPQRSTUVWXYZabcdef filename.txt ABCDEFGHIJKLMNOPQRSTUVWXYZabcdeg
*
* Copyright (C) 2013 Tox project All Rights Reserved.
*
* This file is part of Tox.
*
* Tox is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Tox is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Tox. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "../core/network.h"
#include "../core/DHT.h"
#include "../core/Lossless_UDP.h"
#include <string.h>
//Sleep function (x = milliseconds)
#ifdef WIN32
#define c_sleep(x) Sleep(1*x)
#else
#include <unistd.h>
#include <arpa/inet.h>
#define c_sleep(x) usleep(1000*x)
#endif
#define PORT 33445
void printip(IP_Port ip_port)
{
printf("\nIP: %u.%u.%u.%u Port: %u\n",ip_port.ip.c[0],ip_port.ip.c[1],ip_port.ip.c[2],ip_port.ip.c[3],ntohs(ip_port.port));
}
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);
}
DHT_addfriend((uint8_t *)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]);
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[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(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((uint8_t *)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;
}
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