#include <stdio.h>
#include <netinet/in.h>
#include <sys/socket.h>
#include <unistd.h>
#include <netdb.h>

#include <openssl/ssl.h>

int main(int argc, char **argv) {
    SSL_CTX *ctx = SSL_CTX_new(TLS_client_method());
    SSL *ssl = SSL_new(ctx);
    
    struct hostent *he = gethostbyname(argv[1]);
    
    struct sockaddr_in sa;
    sa.sin_family = AF_INET;
    sa.sin_port = htons(atoi(argv[2]));
    memcpy(&sa.sin_addr.s_addr, he->h_addr, he->h_length);
    
    int fd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
    connect(fd, (struct sockaddr *)&sa, sizeof(sa));
    
    SSL_set_fd(ssl, fd);
    SSL_connect(ssl);
    
    SSL_write(ssl, "Hello, Server!\n", 15);
    
    char buf[1024];
    int count = SSL_read(ssl, buf, sizeof(buf));
    write(1, buf, count);
    
    SSL_shutdown(ssl);
    close(fd);
    
    SSL_free(ssl);
    SSL_CTX_free(ctx);
    
    return 0;
}