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SSL_CTX_ctrl(3) OpenSSL SSL_CTX_ctrl(3) NAME SSL_CTX_ctrl, SSL_CTX_callback_ctrl, SSL_ctrl, SSL_callback_ctrl - internal handling functions for SSL_CTX and SSL objects LIBRARY libcrypto, -lcrypto 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)()); DESCRIPTION The SSL_*_ctrl() family of functions is used to manipulate settings of the SSL_CTX and SSL objects. Depending on the command cmd the arguments larg, parg, or fp are evaluated. These functions should never be called directly. All functionalities needed are made available via other functions or macros. RETURN VALUES The return values of the SSL*_ctrl() functions depend on the command supplied via the cmd parameter. SEE ALSO ssl(7) 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 <https://www.openssl.org/source/license.html>. 3.0.12 2023-05-07 SSL_CTX_ctrl(3)