telnet_server.c.disabled

#include <stdio.h>
#include <string.h>
#include <uvm/syscalls.h>
#include <uvm/utils.h>

u64 listen_sock;

void on_new_conn(u64 socket_id)
{
    puts("got new connection");

    char client_addr[128];
    u64 conn_sock = net_accept(socket_id, client_addr, sizeof(client_addr), on_incoming_data);

    printf("client address: %s\n", client_addr);
}

void on_incoming_data(u64 socket_id, u64 num_bytes)
{
    printf("received %d bytes of incoming data\n", num_bytes);

    char read_buf[1024];
    memset(read_buf, 0, 1024);
    net_read(socket_id, read_buf, 1024 - 1);

    // If this is a telnet command (non-printable), ignore it
    if (read_buf[0] & 0x80)
    {
        return;
    }

    puts(read_buf);

    if (strncmp(read_buf, "exit", 4) == 0)
    {
        puts("got exit command");
        char* response = "Goodbye!\n";
        net_write(socket_id, response, strlen(response));
        net_close(socket_id);
        return;
    }

    char* response = "Hello!\n";
    net_write(socket_id, response, strlen(response));
}

void main()
{
    puts("starting TCP server");
    listen_sock = net_listen("127.0.0.1:9000", on_new_conn);

    enable_event_loop();
}