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 <arpa/inet.h>

/* YOU WILL HAVE TO CHANGE THESE TWO LINES  TO MATCH YOUR CONFIG */
#define PORT        8181		/* Port number as an integer - web server default is 80 */
#define IP_ADDRESS "192.168.0.8"	/* IP Address as a string */

// Request a html file base on HTTP
char *httprequestMsg = "GET /helloworld.html HTTP/1.0 \r\n\r\n" ;
/* Note: spaces are delimiters and VERY important */

#define BUFSIZE 8196

void pexit(char * msg)
{
	perror(msg);
	exit(1);
}

int main()
{
	int i,sockfd;
	char buffer[BUFSIZE];
	static struct sockaddr_in serv_addr;

	printf("client trying to connect to %s and port %d\n",IP_ADDRESS,PORT);
	if((sockfd = socket(AF_INET, SOCK_STREAM,0)) < 0) // create a client socket
		pexit("socket() error");

	serv_addr.sin_family = AF_INET; // Set the socket with IPv4
	serv_addr.sin_addr.s_addr = inet_addr(IP_ADDRESS); // Set ip address
	serv_addr.sin_port = htons(PORT); // set ip port number

	/* Connect the socket offered by the web server */
	if(connect(sockfd, (struct sockaddr *)&serv_addr, sizeof(serv_addr)) < 0) 
		pexit("connect() error");

	/* Now the sockfd can be used to communicate to the server the GET request */
	printf("Send bytes=%d %s\n",(int)strlen(httprequestMsg), httprequestMsg);
	write(sockfd, httprequestMsg, strlen(httprequestMsg));

	/* This displays the raw HTML file (if index.html) as received by the browser */
	while( (i=read(sockfd,buffer,BUFSIZE)) > 0)
		write(1,buffer,i);
		
	/* close the socket */
		close(sockfd);

	return 0;
}