Started IPv6 support [WIP]

master
Aadhavan Srinivasan 2 years ago
parent 7dce5bbaa1
commit 54374082f4

@ -12,6 +12,18 @@ void forward_data(int from_fd, int to_fd) {
}
}
int check_ip_ver(char* address) {
char buffer[16]; /* 16 chars - 128 bits - is enough to hold an ipv6 address */
if (inet_pton(AF_INET,address,buffer) == 1) {
return 4;
} else if (inet_pton(AF_INET6,address,buffer) == 1) {
return 6;
} else {
return -1;
}
}
int main(int argc,char* argv[]) {
/* argv[1] = local address
@ -24,10 +36,17 @@ int main(int argc,char* argv[]) {
char* remote_addr = argv[3];
int remote_port = strtol(argv[4],NULL,10);
int preferred_network = 4;
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);
}
char preferred_transport = 'T';
struct sockaddr addr_struct;
int server_sock = create_local(preferred_network,preferred_transport,local_addr,local_port,&addr_struct);
int server_sock = create_local(preferred_local_network,preferred_transport,local_addr,local_port,&addr_struct);
int addrlen = sizeof(addr_struct);
listen(server_sock,50); /* Arbitrary number, change later */
@ -35,7 +54,7 @@ int main(int argc,char* argv[]) {
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_network,preferred_transport,remote_addr,remote_port);
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) {

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