build-once run-anywhere c library

The ARP Scanner

Micro (GNU) Emacs-like text editor ❤️ public-domain

The portable Tun/Tap devices configuration utility

ISC DHCP is enterprise grade, open source solution for DHCP servers, relay agents, and clients, supports both IPv4 and IPv6, and is suitable for use in high-volume and high-reliability applications.

Self-hosting PL/0 to C compiler to teach basic compiler construction from a practical, hands-on perspective.

GNU libmicrohttpd repository unofficial mirror on GitHub

BSD syslog daemon with syslog()/syslogp(), i.e., structured logging API replacement for Linux, RFC3164 + RFC5424

A usable and IPv6-ready Usenet-server (NNTP daemon). It is portable (Linux/*BSD/*nix), supports AUTHINFO authentication, TLS (SNNTP/NNTPS), contains ACL as well as role based ACL and provides "invisible" newsgroups. It can run on MySQL and SQLite backends.

packetdrill with UDPLite and SCTP support and bug fixes for FreeBSD

HAMMER2 file system for NetBSD

find files using pretty C expressions

picotrace - system call process tracer

Just-in-Time compilation of bpf

https://briancallahan.net/blog/20220220.html

Peephole optimizer for cproc and QBE

Portable OpenBSD Make.

Mixer for NetBSD's audio API, using curses

turns other processes into daemons

Tiny implementation of the GNU/Linux CGroupFS (sans resource controllers) as a PUFFS or FUSE filesystem for BSD platforms