client.c

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>
#include "tc.c"

//GLOBAL VARIABLES
int sockfd, portno, n;
struct sockaddr_in serv_addr;
struct hostent *server;

void error(const char *msg)
{
    perror(msg);
    exit(0);
}

int main(int argc, char *argv[])
{

    int i;
    char buffer[256];
    if (argc < 3)
    {
        fprintf(stderr, "usage %s hostname port\n", argv[0]);
        exit(0);
    }
    portno = atoi(argv[2]);
    sockfd = socket(AF_INET, SOCK_STREAM, 0);
    if (sockfd < 0)
        error("ERROR opening socket");
    server = gethostbyname(argv[1]);
    if (server == NULL)
    {
        fprintf(stderr, "ERROR, no such host\n");
        exit(0);
    }
    bzero((char *)&serv_addr, sizeof(serv_addr));
    serv_addr.sin_family = AF_INET;
    bcopy((char *)server->h_addr, (char *)&serv_addr.sin_addr.s_addr, server->h_length);
    serv_addr.sin_port = htons(portno);
    if (connect(sockfd, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0)
        error("ERROR connecting");

    while (1)
    {
        bzero(buffer, 256);
        printf("You: ");
        fgets(buffer, 256, stdin);

        n = write(sockfd, buffer, strlen(buffer));

        if (n < 0)
            error("ERROR writing to socket");

        if (strncmp("play()", buffer, 3) == 0)
        {
            printf("Game has started \n");
            int temp = play(sockfd);
            printf("Game has ended");
        }
        else if (strncmp("Send()", buffer, 6) == 0)
        {

            printf("Initiating....\n");
            Send(sockfd);
            printf("You: \n");
        }

        bzero(buffer, 256);
        printf("Wait for your friend...\n");
        n = read(sockfd, buffer, 256);

        printf("Friend : %s\n", buffer);
        if (n < 0)
            error("ERROR reading from socket");
        if (strncmp("play()", buffer, 3) == 0)
        {
            printf("Game has started \n");
            int temp = play(sockfd);
            printf("Game has ended");
            //printf("Wait for server to responde... \n");
        }
        else if (strncmp("Send()", buffer, 6) == 0)
        {

            printf("Initiating....\n");
            Recv(sockfd);
        }

        i = strncmp("Bye", buffer, 3);
        if (i == 0)
            break;
        bzero(buffer, 256);
    }
    close(sockfd);
    return 0;
}