/***************************************************************************
 * nsock_ssl.c -- This contains functions that relate somewhat exclusively *
 * to SSL (over TCP) support in nsock.  Where SSL support is incidental,   *
 * it is often in other files where code can be more easily shared between *
 * the SSL and NonSSL paths.                                               *
 *                                                                         *
 ***********************IMPORTANT NSOCK LICENSE TERMS***********************
 *
 * The nsock parallel socket event library is (C) 1999-2024 Nmap Software LLC
 * This library is free software; you may redistribute and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation; Version 2. This guarantees your right to use, modify, and
 * redistribute this software under certain conditions. If this license is
 * unacceptable to you, Nmap Software LLC may be willing to sell alternative
 * licenses (contact sales@nmap.com ).
 *
 * As a special exception to the GPL terms, Nmap Software LLC grants permission
 * to link the code of this program with any version of the OpenSSL library
 * which is distributed under a license identical to that listed in the included
 * docs/licenses/OpenSSL.txt file, and distribute linked combinations including
 * the two. You must obey the GNU GPL in all respects for all of the code used
 * other than OpenSSL. If you modify this file, you may extend this exception to
 * your version of the file, but you are not obligated to do so.
 *
 * If you received these files with a written license agreement stating terms
 * other than the (GPL) terms above, then that alternative license agreement
 * takes precedence over this comment.
 *
 * Source is provided to this software because we believe users have a right to
 * know exactly what a program is going to do before they run it. This also
 * allows you to audit the software for security holes.
 *
 * Source code also allows you to port Nmap to new platforms, fix bugs, and add
 * new features. You are highly encouraged to send your changes to the
 * dev@nmap.org mailing list for possible incorporation into the main
 * distribution. By sending these changes to Fyodor or one of the Insecure.Org
 * development mailing lists, or checking them into the Nmap source code
 * repository, it is understood (unless you specify otherwise) that you are
 * offering the Nmap Project (Nmap Software LLC) the unlimited, non-exclusive
 * right to reuse, modify, and relicense the code. Nmap will always be available
 * Open Source, but this is important because the inability to relicense code
 * has caused devastating problems for other Free Software projects (such as KDE
 * and NASM). We also occasionally relicense the code to third parties as
 * discussed above. If you wish to specify special license conditions of your
 * contributions, just say so when you send them.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License v2.0 for more
 * details (http://www.gnu.org/licenses/gpl-2.0.html).
 *
 ***************************************************************************/

/* $Id$ */

#ifndef NSOCK_SSL_H
#define NSOCK_SSL_H

#ifdef HAVE_CONFIG_H
#include "nsock_config.h"
#endif
#include "nsock_internal.h"

#if HAVE_OPENSSL
#include <openssl/ssl.h>
#include <openssl/err.h>
#include <openssl/rand.h>

#if OPENSSL_VERSION_NUMBER >= 0x30000000L
/* Deprecated in OpenSSL 3.0 */
#define SSL_get_peer_certificate SSL_get1_peer_certificate
#endif

struct sslinfo {
  /* SSL_ERROR_NONE, SSL_ERROR_WANT_CONNECT, SSL_ERROR_WANT_READ, or
   * SSL_ERROR_WANT_WRITE */
  int ssl_desire;
};

int nsi_ssl_post_connect_verify(const nsock_iod nsockiod);

void nsp_ssl_cleanup(struct npool *nsp);
#endif /* HAVE_OPENSSL */
#endif /* NSOCK_SSL_H */

