File: empty.ferm

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ferm 2.7-2
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file content (11 lines) | stat: -rw-r--r-- 194 bytes parent folder | download | duplicates (4) 
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@def $EMPTY = ();
@def $X = 1;
@def $Y = ($EMPTY $X);

chain INPUT {
    saddr $EMPTY REJECT;
    saddr $X ACCEPT;
    saddr $Y DROP;
    daddr () REJECT;
    daddr (() $X () (() $Y) 2) DROP;
}