/**

 * connection.c

 * Copyright (C) 2008 mussolini

 * Copyright (C) 2008 mbroeker

 */

#include <stdio.h>

#include <stdlib.h>

#include <unistd.h>

#include <string.h>

#include <netdb.h>

#include <arpa/inet.h>

#include <netinet/in.h>

#include <sys/types.h>

#include <sys/socket.h>

int connection (char *server, char *port)

{

    struct addrinfo hints;

    struct addrinfo *result, *rp;

    int sockfd = -1;

    memset (&hints, 0, sizeof (struct addrinfo));

    hints.ai_family = AF_UNSPEC;

    hints.ai_socktype = SOCK_STREAM;

    hints.ai_flags = 0;

    hints.ai_protocol = IPPROTO_TCP;

    if (getaddrinfo (server, port, &hints, &result) != 0) {

        perror ("getaddrinfo");

        return -1;

    }

    for (rp = result; rp != NULL; rp = rp->ai_next) {

        if ((sockfd = socket (rp->ai_family, rp->ai_socktype, rp->ai_protocol)) == -1)

            continue;

        if (connect (sockfd, rp->ai_addr, rp->ai_addrlen) != -1) {

            break;

        }

        close (sockfd);

        sockfd = -1;

    }

    if (result != NULL)

        freeaddrinfo (result);

    return (sockfd);

}

int main (int argc, char **argv)

{

    char buffer[1024];

    int sockfd;

    int num;

    if (argc != 3) {

        printf ("Usage: %s <ipaddr> <service>\n", argv[0]);

        return EXIT_FAILURE;

    }

    if ((sockfd = connection (argv[1], argv[2])) < 0) {

        printf ("Connection error: %s:%s\n", argv[1], argv[2]);

        return EXIT_FAILURE;

    }

    if (write (sockfd, "GET / HTTP/1.0\r\n\r\n", 18) == -1) {

        perror ("write");

        return EXIT_FAILURE;

    }

    while ((num = read (sockfd, buffer, 1023)) != 0) {

        buffer[num] = 0;

        printf ("%s", buffer);

    }

    return close (sockfd);

}