proxy_teste.cpp
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#include "jdatagramsocket.h"
#include <iostream>
#include <stdexcept>
#include <fcntl.h>
using namespace jsocket;
#define BUFFER_SIZE 4096
std::vector<DatagramSocket *> hosts;
FILE *fd_hosts;
int receive_port;
int file_parser()
{
DatagramSocket *client;
char *line = NULL;
size_t length;
ssize_t rd;
char *host, *t;
int port;
while ((rd = getline(&line, &length, fd_hosts)) != EOF) {
try {
t = strtok(line, ":");
if (t == NULL) {
continue;
}
host = t;
t = strtok(NULL, ":");
if (t == NULL) {
continue;
}
port = atoi(t);
client = new DatagramSocket(host, port);
if (client != NULL) {
hosts.push_back(client);
}
} catch (...) {
std::cout << "Error in file parser !" << std::endl;
}
}
if (line != NULL) {
delete [] line;
}
return 0;
}
int init_args(int argc, char **argv)
{
if (argc != 3) {
return -1;
}
receive_port = atoi(argv[1]);
fd_hosts = fopen(argv[2], "r");
if (fd_hosts == NULL) {
return -1;
}
return 0;
}
int init_proxy()
{
DatagramSocket server(receive_port);
DatagramSocket *client;
char buffer[BUFFER_SIZE];
size_t length;
std::vector<DatagramSocket *>::iterator i;
while (true) {
try {
length = server.Receive(buffer, BUFFER_SIZE);
for (i=hosts.begin(); i!=hosts.end(); i++) {
client = (DatagramSocket *)(*i);
if (client->Send(buffer, length) < 0) {
std::cout << "Cliente " << client->GetInetAddress()->GetHostName() << " morto !" << std::endl;
}
}
} catch (std::runtime_error &e) {
std::cout << "error in init proxy" << e.what() << std::endl;
}
}
return 0;
}
void help(char *p)
{
std::cout << "JProxy\n" << std::endl;
std::cout << "use: " << p << " <recv_port> <file_hosts>\n" << std::endl;
exit(1);
}
int main(int argc, char **argv)
{
if (init_args(argc, argv) == -1) {
help(argv[0]);
}
if (file_parser() == -1) {
help(argv[0]);
}
if (init_proxy() == -1) {
return -1;
}
return 0;
}