SSL_CTX_SET_KEYLOG_CALLBACK(3)                        Library Functions Manual

NAME
     SSL_CTX_set_keylog_callback, SSL_CTX_get_keylog_callback - set and get
     the unused key logging callback

SYNOPSIS
     #include <openssl/ssl.h>

     typedef void
     (*SSL_CTX_keylog_cb_func)(const SSL *ssl, const char *line);

     void
     SSL_CTX_set_keylog_callback(SSL_CTX *ctx, SSL_CTX_keylog_cb_func cb);

     SSL_CTX_keylog_cb_func
     SSL_CTX_get_keylog_callback(const SSL_CTX *ctx);

DESCRIPTION
     SSL_CTX_set_keylog_callback() sets the TLS key logging callback.  This
     callback is never called in LibreSSL.

     SSL_CTX_set_keylog_callback() retrieves the previously set TLS key
     logging callback.

     These functions are provided only for compatibility with OpenSSL.

RETURN VALUES
     SSL_CTX_get_keylog_callback() returns the previously set TLS key logging
     callback, or NULL if no callback has been set.

SEE ALSO
     ssl(3), SSL_CTX_new(3)

HISTORY
     These function first appeared in OpenSSL 1.1.1 and have been available
     since OpenBSD 7.1.

Linux 6.8.2-arch2-1            October 23, 2021            Linux 6.8.2-arch2-1