gnetman is a program which currently supports advanced SPICE netlisting from gschem (part of the gEDA tool suite). The primary use so far has been for complex IC design. Supported features include multi-level hierarchy, instance arrays, and buses. If you're just doing flat designs for PC boards or smaller SPICE simulations, the usual path is to use the spice-sdb netlister for gnetlist instead. The long term goal of gnetman is far greater. Two projects under consideration include a schematic generator, and a technology mapping back-end for Icarus Verilog. Basically, gnetman is a netlist manipulation database well suited for low-level manipulation of netlists.
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.