~armaan/opendoas

Fork of opendoas that insults you

0d15712 Add -std=c99 to Makefile

~armaan pushed to ~armaan/opendoas git

a month ago

eda1508 Fix compatibility with GNU make

~armaan pushed to ~armaan/opendoas git

a month ago

#OpenDoas

a portable version of OpenBSD's doas command

doas is a minimal replacement for the venerable sudo. It was initially written by Ted Unangst of the OpenBSD project to provide 95% of the features of sudo with a fraction of the codebase.

This fork insults you, similar to how sudo can. To enable, add the "insult" option to your doas.conf

#Building and installation discouragements

There are a few steps you have to carefully consider before building and installing opendoas:

  • There are less eyes on random doas ports, just because sudo had a vulnerability does not mean random doas ports are more secure if they are not reviewed.
  • Use the configure script.
  • Use the default make target.

#About the port

This is not an official port/project from OpenBSD!

As much as possible I've attempted to stick to doas as tedu desired it. As things stand it's essentially just code lifted from OpenBSD with shadow based authentication glommed on to it.

Compatibility functions in libopenbsd come from openbsd directly (strtonum.c, reallocarray.c, strlcpy.c, strlcat.c), from openssh (readpassphrase.c) or from sudo (closefrom.c).

The shadow authentication code does not come from the OpenBSD project.

#Persist/Timestamp/Timeout

The persist feature is disabled by default and can be enabled with the configure flag --with-timestamp.

This feature is new and potentially dangerous, in the original doas, a kernel API is used to set and clear timeouts. This API is openbsd specific and no similar API is available on other operating systems.

As a workaround, the persist feature is implemented using timestamp files similar to sudo.

See the comment block in timestamp.c for an in-depth description on how timestamps are created and checked to be as safe as possible.