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/* Lossless_UDP testserver
* A program that waits for a lossless UDP connection and then saves all the data recieved to a file.
*
* Best used in combination with Lossless_UDP_testclient
*
* Compile with: gcc -O2 -Wall -o test ../core/network.c ../core/Lossless_UDP.c Lossless_UDP_testserver.c
*
* Command line argument is the name of the file to save what we recieve to.
* EX: ./test filename1.txt
*/
#include "../core/network.h"
#include "../core/Lossless_UDP.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 printpacket(char * data, uint32_t length, IP_Port ip_port)
{
uint32_t i;
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");
}
int main(int argc, char *argv[])
{
if (argc < 2)
{
printf("usage: %s filename\n", argv[0]);
exit(0);
}
char buffer[128];
int read;
FILE *file = fopen(argv[3], "rb");
if ( file==NULL ){return 1;}
//initialize networking
//bind to ip 0.0.0.0:PORT
IP ip;
ip.i = 0;
init_networking(ip, PORT);
perror("Initialization");
int connection;
uint64_t timer = current_time();
IP_Port ip_port;
char data[MAX_UDP_PACKET_SIZE];
uint32_t length;
while(1)
{
connection = incoming_connection();
if(connection != -1)
{
if(is_connected(connection) == 3)
{
printf("Recieved the connection.");
}
break;
}
c_sleep(1);
}
timer = current_time();
while(1)
{
while(recievepacket(&ip_port, data, &length) != -1)
{
if(LosslessUDP_handlepacket(data, length, ip_port))
{
printpacket(data, length, ip_port);
}
else
{
printf("Received handled packet with length: %u\n", length);
}
}
doLossless_UDP();
if(is_connected(connection) == 1)
{
read = read_packet(connection, buffer);
if(read != 0)
{
if(!fwrite(buffer, read, 1, file))
{
printf("file write error\n");
}
}
}
else
{
printf("Connecting Lost after: %llu us", (unsigned long long)(current_time() - timer));
}
c_sleep(1);
}
return 0;
}
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