This is a class for null file handles. Calling a constructor of this class always succeeds, returning a new null file handle. Writing to any object of this class is always a no-operation, and returns true. Reading from any object of this class is always no-operation, and returns empty-string or empty-list, as appropriate. You could say: open(NULL, '>/dev/null') || die "WHAAT?! $!"; and get a null FH that way. But not everyone is using an OS that has a /dev/null
Binary packages can be installed with the high-level tool pkgin (which can be installed with pkg_add) or pkg_add(1) (installed by default). The NetBSD packages collection is also designed to permit easy installation from source.
The pkg_admin audit command locates any installed package which has been mentioned in security advisories as having vulnerabilities.
Please note the vulnerabilities database might not be fully accurate, and not every bug is exploitable with every configuration.
Problem reports, updates or suggestions for this package should be reported with send-pr.