skarnet.org

Software

Unless otherwise mentioned, all of this software builds and runs under every flavour of Unix - and only Unix.

Current, released, maintained software

• skalibs
  A set of general-purpose C programming libraries. You need this first: all the other software in this list depends on it.
• execline
  A small scripting language, to be used in place of a shell in non-interactive scripts.
• s6
  skarnet.org's small & secure supervision software suite. Comes with an ultra-fast init replacement, process management tools, an asynchronous locking library, and more.
• s6-rc
  A complete service manager for s6 systems.
• s6-portable-utils
  Tiny portable generic utilities.
• s6-linux-utils
  Tiny Linux-specific utilities.
• s6-dns
  Good, usable DNS client libraries (synchronous and asynchronous), and command-line DNS client utilities.
• s6-networking
  UCSPI Unix and TCP tools, a SSL/TLS tunnel, access control tools, and network time management utilities.
• s6-linux-init
  A tool to automate the creation of suitable stage 1 init binaries for s6-based Linux systems.
• lh-bootstrap
  A set of scripts to build a disk image (for QEMU, for instance), running s6 and s6-rc, with an Internet connection.
• sdnotify-wrapper
  A wrapper for daemons so they can use the simple readiness notification mechanism recommended with s6 and still work under systemd with proper readiness notification, without having to use the sd_notify() interface themselves.
• mdevd
  A Linux kernel event manager daemon (like udevd) that understands the mdev configuration file format and does not fork.
• utmps
  A secure utmp/wtmp implementation.
• nsss
  A small and statically linkable alternative to Name Service Switch.
• bcnm
  A better client network manager.
• dnsfunnel
  A small local DNS forwarder, to get away from multiple nameserver entries in /etc/resolv.conf.
• smtpd-starttls-proxy
  A small proxy to implement STARTTLS over SMTP servers that do not support it.
• tipidee
  The skarnet.org web server, proudly serving this very page!
• shibari
  A small DNS server.

Software in the works, available via git, but without numbered releases

• s6-frontend
  Tools to make the s6 ecosystem more user-friendly.
• skabus
  A lightweight Unix message bus.
• pamela
  A PAM wrapper to encapsulate dynamic loading of modules. Unfortunately, the pamela experiment has shown that common PAM practices make it impossible to implement PAM in a secure way, so initiatives like pamela are bound to fail. Development on this project is very unlikely to continue.

Adaptations or patches to other people's software

• David Madore's Book of Infinity, as a single C file suitable for compilation with skalibs.
  The Book of Infinity is a web robot trap.
• David Madore's superstrip, as a single C file suitable for compilation with skalibs.
  superstrip is a very aggressive ELF stripping utility.
• djbdns-fwdzone
  A patch to djbdns to allow dnscache to perform resolution or forwarding according to the query zone.
• nistp224-buffer
  A patch to nistp224 to make the main binaries use djb's buffer library instead of stdio.
• qmail-qmtproutes
  An add-on to Russell Nelson's qmail-1.03-qmtpc patch for qmail. This one allows you to send mail via QMTP using a qmtproutes file.

Notes

• Current versions of the packages use a standard ./configure && make && sudo make install installation scheme. Older versions use an ad-hoc installation scheme; if you need to install an older version and need help, please contact the skaware mailing-list.