gnutls_protocol_set_enabled - Man Page

API function


#include <gnutls/gnutls.h>

int gnutls_protocol_set_enabled(gnutls_protocol_t version, unsigned int enabled);


gnutls_protocol_t version

is a (gnutls) version number

unsigned int enabled

whether to enable the protocol


Control the previous system-wide setting that marked  version as enabled or disabled.  Calling this function is allowed only if allowlisting mode is set in the configuration file, and only if the system-wide TLS priority string has not been initialized yet. The intended usage is to provide applications with a way to expressly deviate from the distribution or site defaults inherited from the configuration file. The modification is composable with further modifications performed through the priority string mechanism.

This function is not thread-safe and is intended to be called in the main thread at the beginning of the process execution.


0 on success or negative error code otherwise.



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The full documentation for gnutls is maintained as a Texinfo manual. If the /usr/share/doc/gnutls/ directory does not contain the HTML form visit


3.8.1 gnutls