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

int main(int argc, char **argv)
{
    int ssock, i;
    static char buff[256];
    ssize_t nbytes;
    struct sockaddr_in saddr;

    memset(&saddr, 0, sizeof(saddr));
    saddr.sin_family = AF_INET;
    saddr.sin_port = htons(6666);

    printf("Client started...\n");

    if ((ssock = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
        printf("socket() error. (%d) %s\n", errno, strerror(errno));
        exit(1);
    }

    printf("Created SOCK_STREAM socket\n");

    if (connect(ssock, (struct sockaddr *)&saddr, sizeof(saddr)) == -1) {
        printf("connect() error. (%d) %s\n", errno, strerror(errno));
        close(ssock);
        exit(1);
    }

    printf("Connected to the server!\n");
    printf("Sending some data to server\n");

    if ((nbytes = send(ssock, "MSG from client", sizeof("MSG from client"), 0)) <= 0) {
        printf("send() error. (%d) %s\n", errno, strerror(errno));
        close(ssock);
        exit(1);
    }

    printf("Half-closing connection with shutdown(ssock, SHUT_WR)\n");

    if (shutdown(ssock, SHUT_WR) == -1) {
        printf("shutdown() error. (%d) %s\n", errno, strerror(errno));
        close(ssock);
        exit(1);
    }

    printf("Receiving data from server\n");
    if ((nbytes = recv(ssock, buff, sizeof(buff), 0)) > 0) {
            printf("Received: \"%s\"\n", buff);
    } else {
        printf("recv() error. (%d) %s\n", errno, strerror(errno));
        close(ssock);
        exit(1);
    }

    printf("Client exiting...\n");
    close(ssock);
    return 0;
}