Vliedel at 18:26, 30 January 2011

2011-01-30T18:26:25Z

← Older revision		Revision as of 18:26, 30 January 2011
Line 36:		Line 36:
	[[Category:UDP Sockets]]		[[Category:UDP Sockets]]
	[[Category:Socket]]		[[Category:Socket]]
			[[Category:Commands]]

Aca20031: Why did I think there was a /udpread

2008-10-01T23:21:18Z

Why did I think there was a /udpread

← Older revision		Revision as of 23:21, 1 October 2008
Line 30:		Line 30:
	==See Also==		==See Also==
	* [[sockwrite]]		* [[sockwrite]]
	* [[udpread]]
	* [[On udpread]]		* [[On udpread]]
	* [[sockmark]]		* [[sockmark]]

Aca20031 at 23:17, 1 October 2008

2008-10-01T23:17:18Z

← Older revision		Revision as of 23:17, 1 October 2008
Line 34:		Line 34:
	* [[sockmark]]		* [[sockmark]]
	* [[socklist]]		* [[socklist]]

			[[Category:UDP Sockets]]
			[[Category:Socket]]

Aca20031 at 23:12, 1 October 2008

2008-10-01T23:12:13Z

New page

SockUDP is the command used to send [[:Category:UDP Sockets|UDP]] packets to a destination host. In this, it is like the TCP [[sockwrite]] command.

SockUDP however is also used to begin listening for UDP packets on a specified local port. In this, it is like the TCP [[sockopen]] command.

sockudp [-bntkd] [bindip] <name> [localport] [ipaddress remoteport] [numbytes] [text|%var|&binvar]

* Switches
** -b means you are specifying the number of bytes to send. If you specify a number of bytes (''numbytes'') the data will be truncated to this length.
** -n will append [[$crlf]] to the end of the packet. For most protocols, you should '''not''' use this! Appending two extra bytes may not work with the protocol you are using.
** -t means you are sending text (in literal or %var form). In other words, &binvars are not evaluated as [[:Category:Binary Files|binary variables]].
** -k means you wish for this socket to remain open on ''localport'' to listen for incoming UDP data.
** -d is used when a bindip is being specified. If you use this, you must specify a bindip and visa versa.
* Parameters
** bindip is used with the -d switch. The UDP socket will bind to this ip. This is optional, otherwise all IPs are bound to this socket.
** name is required. It is the name that this socket will be referred to by.
** localport is optional and is used with -k. If -k and localport are specified, the socket will wait for incoming UDP data on the specified port.
** ipaddress is the ip of the remote computer you wish to send the data to. This is not required if you are merely opening a socket (-k)
** remoteport is the port of the remote computer you wish to send the data to. This is only required where ipaddress is required.
** numbytes is the number of bytes to send, and is used with the -b switch. If this is specified, '''only''' numbytes bytes will be sent. Any other data after this [[$ord]](numbytes)) byte is lost.
** text, %var, &binvar contain the data to be sent.

==Examples==
sockudp -ktb myudpsocket 5078 host.com 5077 8 You will see this. But not this.
This
* Trunicates " But not this." because it is past the 8th byte
* Sends "You will see this." to host.com at port 5077
* Listens for UDP packets on port 5078
The socket is named myudpsocket, this is the name that would be used in [[On udpread]] to read from the socket.

==See Also==
* [[sockwrite]]
* [[udpread]]
* [[On udpread]]
* [[sockmark]]
* [[socklist]]

Sockudp - Revision history

Vliedel at 18:26, 30 January 2011

Aca20031: Why did I think there was a /udpread

Aca20031 at 23:17, 1 October 2008

Aca20031 at 23:12, 1 October 2008