UDP Networking

Collaboration diagram for UDP Networking:

Functions
NETSOCKET	net_udp_create (NETADDR bindaddr)
int	net_udp_send (NETSOCKET sock, const NETADDR *addr, const void *data, int size)
int	net_udp_recv (NETSOCKET sock, NETADDR *addr, unsigned char **data)
void	net_udp_close (NETSOCKET sock)

Detailed Description

Function Documentation

net_udp_close()

void net_udp_close

(

NETSOCKET

sock

)

Closes an UDP socket.

Parameters

sock	Socket to close.

net_udp_create()

NETSOCKET net_udp_create

(

NETADDR

bindaddr

)

Creates a UDP socket and binds it to a port.

Parameters

bindaddr

Address to bind the socket to.

Returns

On success it returns an handle to the socket. On failure it returns nullptr.

net_udp_recv()

int net_udp_recv	(	NETSOCKET	sock,
		NETADDR *	addr,
		unsigned char **	data )

Receives a packet over an UDP socket.

Parameters

sock	Socket to use.
addr	Pointer to an NETADDR that will receive the address.
data	Received data. Will be invalidated when this function is called again.

Returns

On success it returns the number of bytes received. Returns -1 on error.

net_udp_send()

int net_udp_send	(	NETSOCKET	sock,
		const NETADDR *	addr,
		const void *	data,
		int	size )

Sends a packet over an UDP socket.

Parameters

sock	Socket to use.
addr	Where to send the packet.
data	Pointer to the packet data to send.
size	Size of the packet.

Returns

On success it returns the number of bytes sent. Returns -1 on error.