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Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" SSL_CTX_ctrl, SSL_CTX_callback_ctrl, SSL_ctrl, SSL_callback_ctrl \- internal handling functions for SSL_CTX and SSL objects .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& #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)()); .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" The SSL_*\fB_ctrl()\fR family of functions is used to manipulate settings of the \s-1SSL_CTX\s0 and \s-1SSL\s0 objects. Depending on the command \fBcmd\fR the arguments \&\fBlarg\fR, \fBparg\fR, or \fBfp\fR are evaluated. These functions should never be called directly. All functionalities needed are made available via other functions or macros. .SH "RETURN VALUES" .IX Header "RETURN VALUES" The return values of the SSL*\fB_ctrl()\fR functions depend on the command supplied via the \fBcmd\fR parameter. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\fBssl\fR\|(7) .SH "COPYRIGHT" .IX Header "COPYRIGHT" Copyright 2001\-2016 The OpenSSL Project Authors. All Rights Reserved. .PP Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use this file except in compliance with the License. You can obtain a copy in the file \s-1LICENSE\s0 in the source distribution or at <https://www.openssl.org/source/license.html>.