efun: tls_available

PRELIMINARY:

SYNOPSIS:

        int tls_available()

DESCRIPTION:

        If the global TLS initialisation could not been set up, 
        tls_is_available() returns 0, otherwise 1.
        It is not very useful calling any other tls_*-efun if this one 
        returns 0, since there is no TLS-encryption available.
        Most likely the global initialisation fails due to missing or 
        unreadable key resp. certificate-file.

HISTORY:

        Introduced in LDMud 3.3.474 and following, backported to 3.2.11.

SEE ALSO:

	
	tls_init_connection(E), tls_deinit_connection(E),
	tls_query_connection_state(E), tls_query_connection_info(E),
	tls_check_certificate(E), tls_refresh_certs(E)