The two perl items in this package are an stty shell script and a module for setting terminal parameters. to use the Stty.pm module stuff it in your $PERL_LIB_DIR/site_perl/IO directory. In your scripts do: use IO::Stty; IO::Stty::stty(\*TTYHANDLE, @modes); This has not been tailored to the IO::File stuff but will work with it as indicated. Before you go futzing with term parameters it's a good idea to grab the current settings and restore them when you finish.
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.