#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<unistd.h>
#include<sys/types.h>
#include<sys/socket.h>
#include<netdb.h>
#include "sockets.h"

/*Input: Accepts no user input, gets struct and int listen_sd from main
* Output: NONE
* Return: int value for listen_sd
* Notes: starts socket setup
*/
int _socket( struct protoent * p_ptr , int * listen_sd)
{
    *listen_sd = socket ( PF_INET, SOCK_STREAM, p_ptr->p_proto );
    return *listen_sd;
}

/*Input: Accepts no user input, gets sockaddr for server and int
* listen_sd and rc from main
* Output: NONE
* Return: int value for rc
* Notes: calls bind command
*/
int _bind( struct sockaddr_in serv , int * rc , int * listen_sd)
{
    *rc = bind( * listen_sd , ( struct sockaddr * ) &serv,
        sizeof(struct sockaddr_in) );
    return *rc;

}

/*Input: Accepts no user input, gets struct and int listen_sd and rc from main
* Output: NONE
* Return: int value for rc
* Notes: calls listen command
*/
int _listen( int * listen_sd , int * rc )
{
    *rc = listen ( *listen_sd, 10 );
    return *rc;
}

/*Input: Accepts no user input, gets struct and int listen_sd and io_sd,
* as well as sockaddr for client from main 
* Output: NONE
* Return: int value for io_sd
* Notes: accepts client connection 
*/
int _accept( int * listen_sd, int * io_sd ,  struct sockaddr_in client, 
        socklen_t cli_length)
{
    *io_sd = accept ( *listen_sd, ( struct sockaddr * ) &client, &cli_length );
    return *io_sd;
}

/*Input: Accepts no user input, gets int listen_sd, and char arr
* buf from main
* Return: int value of x which is number bytes read successfully
* Notes: reads data entered by a client
*/
int _read ( int * io_sd , char buf )
{
    int tmp;

    tmp = read( * io_sd , buf , sizeof(char)*80 );

    return tmp;
}

/*Input: Accepts no user input, gets int listen_sd, and tmp and char arr
* buf from main
* Output: value in buf to appropriate client
* Return: NONE
* Notes: uses write to write to clients screen info read from other
* client's screen
*/
void _write ( int * io_sd , char buf , int * tmp)
{
    write( *io_sd , buf , *tmp );
}