=pod =head1 NAME SSL_CTX_has_client_custom_ext - check whether a handler exists for a particular client extension type =head1 SYNOPSIS #include int SSL_CTX_has_client_custom_ext(const SSL_CTX *ctx, unsigned int ext_type); =head1 DESCRIPTION SSL_CTX_has_client_custom_ext() checks whether a handler has been set for a client extension of type B using SSL_CTX_add_client_custom_ext(). =head1 RETURN VALUES Returns 1 if a handler has been set, 0 otherwise. =head1 SEE ALSO L, L =cut