Function UdpSocket_receiveFrom 

pub unsafe extern "C" fn UdpSocket_receiveFrom(
    self_: UdpSocket,
    address: *mut c_char,
    maxAddrSize: c_int,
    msg: *mut u8,
    msgSize: c_int,
) -> c_int

Receive data from UDP socket (store data and (optionally) the IP address of the sender

Arguments

• self - UDP socket instance
• address - (optional) buffer to store the IP address as string
• maxAddrSize - (optional) size of the provided buffer to store the IP address
• msg - buffer to store the UDP message data
• msgSize - the maximum size of the message to receive

Returns

number of received bytes or -1 in case of an error