AdiIRC

This does not crash for me, there is more to it.

I will provide you the hole code in order to test it and see, i tried to reproduce step by step but it didn't trigger, when i try that code it crashes.

Load in hash some ports database: //hmake port 10000 | hload port port.list
Port.list: https://pastebin.com/ihYw00Ne

Example Run: /portscan TEST N/A 1.179.198.37

#PortScanner on
alias portscan {
  var %h = Port
  var %t = $hget(%h,0).data
  if (!$1) || ($0 !== 3) || (!$hget(%h)) || (!%t) || (%t !== $hget(%h,0).item) || ($ulist($3,exemp,1)) || ($status !== connected) { return }
  var %i = 1
  while (%i <= %t) {
    var %d = $hget(%h,%i).data
    var %sock = portscan_ $+ $3 $+ _ $+ %d
    if (%d) && (!$sock(%sock)) { sockopen %sock $3 %d | sockmark %sock $1- }
    inc %i
  }
}

ON *:SOCKOPEN:portscan_*: {
  if ($sockerr > 0) || ($status !== connected) { return }

  tokenize 32 $sock($sockname).mark
  window -e @PORTS

  echo -t @PORTS *** $1 ( $+ $2 $+ ) $chr(91) $+ $3 $+ $chr(93) founded as $sock($sockname).port open port.
  echo -s gline *@ $+ $3 1d [G-Lined]: Your IP has been founded that $sock($sockname).port port is opened.
  sockclose * $+ $3 $+ *
}
#PortScanner end