/*
 * a01_cli.c -- a stream socket client demo
 * client.c do Beej's Guide (c)
 *
 * adaptado para o curso MC823:
 * - removido: netdb/gethostbyent/DNS
 *
 */


#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <arpa/inet.h>

#define PORT 3490 // the port client will be connecting to 

#define MAXDATASIZE 100 // max number of bytes we can get at once 

int main(int argc, char *argv[])
{
    int sockfd, numbytes;  
    char buf[MAXDATASIZE];
    struct sockaddr_in their_addr; // connector's address information 

    if (argc != 2) {
        fprintf(stderr,"usage: client hostip\n");
        exit(1);
    }

    if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) == -1) {
        perror("socket");
        exit(1);
    }

    their_addr.sin_family = AF_INET;    // host byte order 
    their_addr.sin_port = htons(PORT);  // short, network byte order 
    if (inet_pton(AF_INET, argv[1], &their_addr.sin_addr) <= 0) {
      perror("inet_pton");
      exit(1);
    }
    memset(&(their_addr.sin_zero), '\0', 8);  // zero the rest of the struct 

    if (connect(sockfd, (struct sockaddr *)&their_addr, sizeof(struct sockaddr)) == -1) {
        perror("connect");
        exit(1);
    }

    if ((numbytes=recv(sockfd, buf, MAXDATASIZE-1, 0)) == -1) {
        perror("recv");
        exit(1);
    }

    buf[numbytes] = '\0';

    printf("Received: %s",buf);

    close(sockfd);

    return 0;
}


/* author: Gustavo Sverzut Barbieri (http://www.gustavobarbieri.com.br) */