|  | =pod | 
|  |  | 
|  | =head1 NAME | 
|  |  | 
|  | SSL_library_init, OpenSSL_add_ssl_algorithms | 
|  | - initialize SSL library by registering algorithms | 
|  |  | 
|  | =head1 SYNOPSIS | 
|  |  | 
|  | #include <openssl/ssl.h> | 
|  |  | 
|  | int SSL_library_init(void); | 
|  |  | 
|  | int OpenSSL_add_ssl_algorithms(void); | 
|  |  | 
|  | =head1 DESCRIPTION | 
|  |  | 
|  | SSL_library_init() registers the available SSL/TLS ciphers and digests. | 
|  |  | 
|  | OpenSSL_add_ssl_algorithms() is a synonym for SSL_library_init() and is | 
|  | implemented as a macro. | 
|  |  | 
|  | =head1 NOTES | 
|  |  | 
|  | SSL_library_init() must be called before any other action takes place. | 
|  | SSL_library_init() is not reentrant. | 
|  |  | 
|  | =head1 WARNING | 
|  |  | 
|  | SSL_library_init() adds ciphers and digests used directly and indirectly by | 
|  | SSL/TLS. | 
|  |  | 
|  | =head1 RETURN VALUES | 
|  |  | 
|  | SSL_library_init() always returns "1", so it is safe to discard the return | 
|  | value. | 
|  |  | 
|  | =head1 SEE ALSO | 
|  |  | 
|  | L<ssl(7)>, | 
|  | L<RAND_add(3)> | 
|  |  | 
|  | =head1 HISTORY | 
|  |  | 
|  | The SSL_library_init() and OpenSSL_add_ssl_algorithms() functions were | 
|  | deprecated in OpenSSL 1.1.0 by OPENSSL_init_ssl(). | 
|  |  | 
|  | =head1 COPYRIGHT | 
|  |  | 
|  | Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved. | 
|  |  | 
|  | Licensed under the OpenSSL license (the "License").  You may not use | 
|  | this file except in compliance with the License.  You can obtain a copy | 
|  | in the file LICENSE in the source distribution or at | 
|  | L<https://www.openssl.org/source/license.html>. | 
|  |  | 
|  | =cut |