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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(3) 1.0.1u 2009-07-19 SSL_CTX_ctrl(3)