pub unsafe extern "C" fn openconnect_set_protect_socket_handler(
vpninfo: *mut openconnect_info,
protect_socket: openconnect_protect_socket_vfn,
)pub unsafe extern "C" fn openconnect_set_protect_socket_handler(
vpninfo: *mut openconnect_info,
protect_socket: openconnect_protect_socket_vfn,
)