N: SIO Command 'D' Set UDP Destination

N: SIO Command OPEN ($44) ['D']

This is a command for Devices $71-$78 - The N: Device (see SIO-Commands-for-Device-IDs-$71-to-$78).

Description

Given a devicespec of the form:

Nx:hostname:port

It will set the UDP destination address and port to what's specified. The IOCB in question must be already opened to a UDP protocol. If the IOCB isn't already opened, an ERROR 146 will occur.

Both hostname and port are required. An IP address can be used in place of hostname. If port is not specified, an ERROR 165 will result.

Parameters

DCB	Value
DDEVIC	$71
DUNIT	$01 - $04
DCOMND	$4F 'O'
DSTATS	$80
DBUF	a 256 byte buffer containing N: devicespec
DTIMLO	$0F
DBYT	256
DAUX1	N: AUX1 Values
DAUX2	N: AUX2 Values

Examples

CC65

static unsigned char dest[256]="N:192.168.1.1:2000";

/**
 * io_init() - Set-up the I/O
 */
void set_udp_dest(void)
{
  OS.dcb.ddevic=0x71;
  OS.dcb.dunit=1;
  OS.dcb.dcomnd='D';
  OS.dcb.dstats=0x80;
  OS.dcb.dbuf=&dest;
  OS.dcb.dtimlo=0x0f;
  OS.dcb.dbyt=256;
  OS.dcb.daux=0;
  siov();
}

See Also

Put other related command links here.