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.\" ========================================================================
.\"
.IX Title "SSL_CTX_ctrl 3"
.TH SSL_CTX_ctrl 3 "2019-12-20" "1.0.2u" "OpenSSL"
.\" For nroff, turn off justification.  Always turn off hyphenation; it makes
.\" way too many mistakes in technical documents.
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.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\|(3)