firecfg: Support OpenDoas

[ghost]

Is your feature request related to a problem? Please describe.

There was a somewhat recent security vulnerability in sudo leading some users (myself included) to look into projects such as OpenDoas, which is a simpler and easier to audit way of handling privilege escalation that I and some other users in the GNU/Linux community have migrated to. Firecfg does NOT function properly using doas to run, it explicitly requires sudo. When attempting to use doas, it will act as though firecfg was run as the root user, and not as a heightened-privilege user similar to sudo.

Describe the solution you'd like

Perhaps adding an option similar to paru's config file that easily allows Firecfg to be run in "doas mode."

Describe alternatives you've considered

I am not entirely sure if this is something doas is capable of accomplishing, as it is intentionally left as simple as possible. But, I do believe a workaround can be made. I am not a programmer, I'd love to make a pull request if I knew how to add such a feature. 😅

Additional context

Any response is appreciated. :)

[rusty-snake]

OT: Duncaen/OpenDoas#106

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Assuming you use doas, can you run doas printenv | grep DOAS_USER and report back if it prints your user.

If so it is a simple second check in

firejail/src/firecfg/main.c

Line 292 in c7b8e00

char *user = getenv("SUDO_USER");

and

firejail/src/jailcheck/utils.c

Line 28 in c7b8e00

char *get_sudo_user(void) {

.

[rusty-snake]

Nevermind @kmk3 has already done in #5900.

[kmk3]

@shaggonit Done in #5900, thanks for the suggestion.