Function esp_idf_hal::sys::lwip_getsockopt_impl_ext

pub unsafe extern "C" fn lwip_getsockopt_impl_ext(
    sock: *mut lwip_sock,
    level: i32,
    optname: i32,
    optval: *mut c_void,
    optlen: *mut u32,
    err: *mut i32
) -> bool