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=head1 NAME

SSL_CTX_ctrl, SSL_CTX_callback_ctrl, SSL_ctrl, SSL_callback_ctrl - internal handling functions for SSL_CTX and SSL objects

=head1 SYNOPSIS

 #include <openssl/ssl.h>

 long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg);
 long SSL_CTX_callback_ctrl(SSL_CTX *, int cmd, void (*fp)());

 long SSL_ctrl(SSL *ssl, int cmd, long larg, void *parg);
 long SSL_callback_ctrl(SSL *, int cmd, void (*fp)());

=head1 DESCRIPTION

The SSL_*_ctrl() family of functions is used to manipulate settings of
the SSL_CTX and SSL objects. Depending on the command B<cmd> the arguments
B<larg>, B<parg>, or B<fp> are evaluated. These functions should never
be called directly. All functionalities needed are made available via
other functions or macros.

=head1 RETURN VALUES

The return values of the SSL*_ctrl() functions depend on the command
supplied via the B<cmd> parameter.

=head1 SEE ALSO

L<ssl(7)>

=head1 COPYRIGHT

Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the Apache License 2.0 (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>.

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