Always use strictures (use strict; use warnings;)!

GetHosts takes a reference parameter which you assign to a local variable $ref_data. Later in the same function you redefine the variable twice (inside the if)! That is three different variables using the same name in the same function. That can not be right. With strictures on you would get:

"my" variable $ref_data masks earlier declaration in same scope at ...
Use of uninitialized value $new_ip in concatenation (.) or string at .
+..

[download]

which happens to tell you exactly where the problems are. Did I mention "Always use strictures (use strict; use warnings;)" already? You really, really should.

True laziness is hard work

In reply to Re: Hash reference undefined somewhere? by GrandFather
in thread Hash reference undefined somewhere? by bowei_99

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