#include <stdio.h>
#include <kernel/OS.h>
#include <string.h>
#include <sys/time.h>
#include <errno.h>

#include "sys/socket.h"
#include "netinet/in.h"
#include "arpa/inet.h"
#include "sys/select.h"

// #include "ufunc.h"

#define PORT 7772
#define HELLO_MSG "Hello from the server\n"
#define RESPONSE_MSG "Hello from the client!\n"

int main(int argc, char **argv)
{
        int sock = socket(AF_INET, SOCK_STREAM, 0);
        struct sockaddr_in sin;
        int salen = sizeof(sin);
        int rv, on = 1;
        int newsock;
        char buffer[50];
                
        // test_banner("Accept Test - Server");
        
        memset(&sin, 0, sizeof(sin));
        sin.sin_family = AF_INET;
        sin.sin_port = htons(PORT);
        sin.sin_len = salen;
        sin.sin_addr.s_addr = htonl(INADDR_ANY); // LOOPBACK);
        rv = bind(sock, (const struct sockaddr*)&sin, salen);
        if (rv < 0)
                perror("bind");
        printf("Bound\n");
        
        rv = listen(sock, 5);
        if (rv < 0)
                perror("listen");
        printf("Listening\n");

        newsock = accept(sock, (struct sockaddr*)&sin, &salen);
        if (newsock < 0)
                perror("accept");
        printf("Accepted socket %d\n", newsock);
        
        rv = write(newsock, HELLO_MSG, strlen(HELLO_MSG));
        if (rv < 0)
                perror("write");
        printf("Written hello\n");
        
        close(newsock);
        close(sock); 

        return (0);
}