/*
 * File: client.c
 * Modified by: Sarah Diesburg for CS 3470
 * Description: Sends a string over a TCP socket
 */


#include <stdio.h>
#include <stdlib.h> 
#include <strings.h> 
#include <string.h> 
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>

#define SERVER_PORT 8888
#define MAX_LINE 256

int main(int argc, char * argv[])
{
	FILE *fp;
	struct hostent *hp;
	struct sockaddr_in sin;
	char *host;
	char buf[MAX_LINE];
	int s;
	int len;
	if (argc==2) {
		host = argv[1];
	}
	else {
		fprintf(stderr, "usage: simplex-talk host\n");
	exit(1);
	}

	/* translate host name into peer.s IP address */
	hp = gethostbyname(host);
	if (!hp) {
		fprintf(stderr, "simplex-talk: unknown host: %s\n", host);
		exit(1);
	}
	/* build address data structure */
	bzero((char *)&sin, sizeof(sin));
	sin.sin_family = AF_INET;
	bcopy(hp->h_addr, (char *)&sin.sin_addr, hp->h_length);
	sin.sin_port = htons(SERVER_PORT);
	/* active open */
	if ((s = socket(PF_INET, SOCK_STREAM, 0)) < 0) {
		perror("simplex-talk: socket");
		exit(1);
	}
	if (connect(s, (struct sockaddr *)&sin, sizeof(sin)) < 0) {
		perror("simplex-talk: connect");
		close(s);
		exit(1);
	}
	/* main loop: get and send lines of text */
	while (fgets(buf, sizeof(buf), stdin)) {
		buf[MAX_LINE-1] = '\0';
		len = strlen(buf) + 1;
		send(s, buf, len, 0);
	}
}