Added check for IPv6, updated calls to 'create_remote' to include new paramter

master
Aadhavan Srinivasan 2 years ago
parent 130346b006
commit f0d084ad9d

@ -39,7 +39,7 @@ int main(int argc,char* argv[]) {
int preferred_local_network = check_ip_ver(local_addr);
int preferred_remote_network = check_ip_ver(remote_addr);
printf("Using %d for local\nUsing %d for remote\n",preferred_local_network,preferred_remote_network);
if ((preferred_local_network == -1) || (preferred_remote_network == -1)) {
exit(-7);
}
@ -47,32 +47,38 @@ int main(int argc,char* argv[]) {
char preferred_transport = 'T';
struct sockaddr addr_struct;
int server_sock = create_local(preferred_local_network,preferred_transport,local_addr,local_port,&addr_struct);
int addrlen = sizeof(addr_struct);
int addrlen;
if (check_ip_ver(local_addr) == 4) {
addrlen = sizeof(struct sockaddr_in);
} else if (check_ip_ver(local_addr) == 6) {
addrlen = sizeof(struct sockaddr_in6);
} else {
exit(-7);
}
listen(server_sock,50); /* Arbitrary number, change later */
printf("Listening on %s:%d\n",local_addr,local_port);
while (1) {
int from_client = accept(server_sock,&addr_struct,(socklen_t *)&addrlen);
int to_server = create_remote(preferred_remote_network,preferred_transport,remote_addr,remote_port);
printf("Connection established to %s:%d\n",remote_addr,remote_port);
if (fork() == 0) {
struct sockaddr remote_addr_struct;
while (1) {
int from_client = accept(server_sock,&addr_struct,(socklen_t *)&addrlen);
int to_server = create_remote(preferred_remote_network,preferred_transport,remote_addr,remote_port,&remote_addr_struct);
/* fork returns 0 for a child, so we're in the child's execution
right now */
close(server_sock);
if (fork() == 0) {
forward_data(from_client,to_server);
exit(0);
}
printf("Connection established to %s:%d\n",remote_addr,remote_port);
if (fork() == 0) {
forward_data(to_server,from_client);
exit(0);
}
/* fork returns 0 for a child, so we're in the child's execution
right now */
close(server_sock);
if (fork() == 0) {
forward_data(from_client,to_server);
exit(0);
}
if (fork() == 0) {
forward_data(to_server,from_client);
exit(0);
}
exit(0);
}
// recv(from_client,buffer,3000,0);

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