/*
 * The MIT License
 *
 * Copyright 2018 Ugo Cirmignani.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include <stdio.h>
#include <unistd.h>
#include <sys/socket.h>
#include <string.h>
#include <arpa/inet.h>
#include <openssl/ssl.h>
#include <openssl/err.h>

#include "openSsl.h"

void initOpenssl()
{
    SSL_load_error_strings();
    OpenSSL_add_ssl_algorithms();
}

void cleanupOpenssl()
{
    EVP_cleanup();
}

SSL_CTX *createContext()
{
    const SSL_METHOD *method;
    SSL_CTX *ctx;

    method = SSLv23_server_method();

    ctx = SSL_CTX_new(method);
    if (!ctx) {
	perror("Unable to create SSL context");
	ERR_print_errors_fp(stderr);
	exit(EXIT_FAILURE);
    }

    return ctx;
}

void configureContext(SSL_CTX *ctx)
{
    SSL_CTX_set_ecdh_auto(ctx, 1);

    /* Set the key and cert */
    if (SSL_CTX_use_certificate_file(ctx, "/home/ugo/NetBeansProjects/uFTP/cert.pem", SSL_FILETYPE_PEM) <= 0) {
        ERR_print_errors_fp(stderr);
	exit(EXIT_FAILURE);
    }

    if (SSL_CTX_use_PrivateKey_file(ctx, "/home/ugo/NetBeansProjects/uFTP/key.pem", SSL_FILETYPE_PEM) <= 0 ) {
        ERR_print_errors_fp(stderr);
	exit(EXIT_FAILURE);
    }
}