• InetdHowto

Introduction

Thanks to Ticho for mentioning the idea
Thanks to Vagabond for quickly implementing support in his rirc
If you don't have/want xinetd/inetd check out spinetd

Note that this is a ridiculous idea. Note that there is no authentication yet, so you're simply allowing everyone to connect to your irssi2 instance! So if you're going to try this, make sure the port is firewalled well.
To resolve the latter, I recommend you follow the SshInetdHowto afterwards. (:

This is a quick guide on how to run irssi2 under inetd or xinetd, instead of ssh / local socket / whatnot.
Includes inetd configuration, xinetd configuration and the rest.

Setting up inetd

1. Edit /etc/services and add:

   irssi2 1027/tcp

2. Create a irssi2wrap.sh, make it executable by your user, and put this in it:

   ### irssi2wrap.sh, by daxxar.
   ## Simple wrapper to make irssi2 run under inetd
   ## Please, if anyone knows a better way; lemme know. (:
   
   # Check that the user (rather; inetd/xinetd) passed a proper binary.
   BIN="$1"
   if [ -z "$BIN" ]; then
       echo "irssi2wrap.sh: you didn't pass a path to the real irssi2 binary. exiting."
       exit 1
   fi
   if [ ! -r "$BIN" ] || [ ! -x "$BIN" ] || [ ! -f "$BIN" ]; then
       echo "irssi2wrap.sh: you didn't pass the path ($BIN) to a readable, executable file. exiting."
       exit 1
   fi
   
   
   # Better safe than sorry! :)
   for v in `export|awk '{ sub(/^declare -x /, ""); sub(/=.*$/, ""); print $0 }'`; do unset $v; done
   
   # Set up the needed stuff.
   export PATH="/usr/local/bin:/usr/bin:/bin"
   export USER="`id -un`"
   # If you haven't got getent, use this instead:
   # export HOME="`grep ^$USER: /etc/passwd|cut -f6 -d:`" instead.
   export HOME="`getent passwd $USER|cut -f6 -d:`"
   
   # Execute the binary itself. (=
   $BIN

3. Edit /etc/inetd.conf and add: (NOTICE THE STANDALONE "irssiwrap2.sh"; IMPORTANT)

   irssi2  stream  tcp  nowait  username_here  /path/to/irssi2wrap.sh irssi2wrap.sh /path/to/irssi2-binary

4. Restart inetd.

Setting up xinetd

1. Add irssi2 as a service as above

2. Edit /etc/xinetd.d/irssi2 and add:

   service irssi2
   {
           socket_type     = stream
           protocol        = tcp
           wait            = no
           user            = username_here
           server          = /path/to/irssi2-binary
           passenv         = 
           env             = PATH=/usr/local/bin:/usr/bin:/bin USER=username_here HOME=/path/to/homedir
           port            = 1027
   }

3. Restart xinetd.

Conclusion