Function mbedtls_sys::mbedtls_x509write_crt_der

pub unsafe extern "C" fn mbedtls_x509write_crt_der(
    ctx: *mut mbedtls_x509write_cert, 
    buf: *mut c_uchar, 
    size: size_t, 
    f_rng: Option<unsafe extern "C" fn(_: *mut c_void, _: *mut c_uchar, _: size_t) -> c_int>, 
    p_rng: *mut c_void
) -> c_int