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@def $a = 'AAA';
chain INPUT {
@if @defined($a) LOG log-prefix "a is defined: $a";
@if @defined($b) LOG log-prefix "b is not defined: $b";
@if @defined($c) LOG log-prefix "c is not yet defined: $c";
@def $c = 'CCC';
@if @defined($c) LOG log-prefix "c is now defined: $c";
proto tcp {
@def $c = 'CCC2';
@def $d = 'DDD';
@if @defined($a) LOG log-prefix "a is defined: $a";
@if @defined($b) LOG log-prefix "b is not defined: $b";
@if @defined($c) LOG log-prefix "c has new value: $c";
@if @defined($d) LOG log-prefix "d is defined: $d";
@def &func($e) = LOG log-prefix $e;
@if @defined(&func) LOG log-prefix "func is defined";
dport http {
@if @defined($c) LOG log-prefix "c still has new value: $c";
@if @defined($d) LOG log-prefix "d is still defined: $d";
@if @defined(&func) LOG log-prefix "func is still defined";
}
}
@if @defined($c) LOG log-prefix "c is still defined: $c";
@if @defined($d) LOG log-prefix "d is gone: $d";
@if @defined(&func) LOG log-prefix "func is gone";
}
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