Site Tools


connect_function
no way to compare when less than two revisions

Differences

This shows you the differences between two versions of the page.


connect_function [2006/07/25 21:22] (current) – created - external edit 127.0.0.1
Line 1: Line 1:
 +# $EPIC: connect_function.txt,v 1.2 2006/07/24 07:11:25 sthalik Exp $
 +======Synopsis:======
 + $connect(<host> <port> [family])
 +
 +======Technical:======
 +   * If the <host> argument is omitted the empty string is returned.
 +   * If the <port> argument is omitted the empty string is returned.
 +   * If the <host> argument does not resolve to a known Internet hostname, an error is output and the empty string is returned.
 +   * If a TCP connection to host <host> on port <port> cannot be opened, an error is output and the empty string is returned.
 +   * If the connection is established, then **/ON DCC_RAW "<fd> <host> E <port>"** will be thrown before this function returns.  <fd> is an integer by which you can refer to this connection with /dcc raw and /msg.
 +   * The return value of this function is a small integer suitable for use with /[[DCC]] [[dcc RAW|RAW]] and /[[MSG]].
 +   * The optional [family] argument can be 4, 6, v4, or v6 to specify usage of IPv4 or IPv6.
 +
 +======Practical:======
 +This function will let you open up a TCP socket to any host/port.  You
 +can send messages to the connection using the return value as the key 
 +argument to [[DCC]] [[DCC RAW|RAW]] and [[MSG]].  You will receive messages from the 
 +connection via /[[ON]] [[on DCC_RAW|DCC_RAW]] "<fd> <host> D <data>".
 +
 +======Returns:======
 +A number to be used for communication with an open TCP connection,
 +or the empty string if an error occurs.
 +
 +======Examples:======
 +A complete example of opening up a connection to the local SMTPd,
 +sending a command, receiving responses, and cleaning up afterwards.
 +
 +<file>
 +alias mailcheck {
 +  @ :host = [127.0.0.1]
 +  @ :port = 25
 +
 +  on ^dcc_raw "% $host D *" {
 +    echo ======-- Incoming! --====== $2-
 +  }
 +  on ^dcc_lost "% RAW $host" {
 +    on dcc_raw -"% $2 D"
 +    on dcc_lost -$*
 +  }
 +
 +  @ :fd = connect($host $port)
 +  msg =$fd QUIT
 +}
 +</file>
 +
 +======History:======
 +This function first appeared in ircII-2.2pre3
  
connect_function.txt · Last modified: 2006/07/25 21:22 by 127.0.0.1