Re: Faking a TTY on a pipe/socketpair

On 2024-12-05, Lawrence D'Oliveiro <ldo@nz.invalid> wrote:

On Thu, 5 Dec 2024 08:19:46 -0000 (UTC), Muttley wrote:
>

On Thu, 5 Dec 2024 02:11:04 -0000 (UTC)
Lawrence D'Oliveiro <ldo@nz.invalid> wibbled:

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On Wed, 4 Dec 2024 08:34:30 -0000 (UTC), Muttley wrote:
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Linux is far closer to the unix philosphy (ignoring systemd) ...

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Which ???unix philosophy??? would that be?

 
The one where init does a single task instead of spreading itself
throughout the system ...

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What ???single task??? did init do?
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* Mount filesystems
* Spawn syslog, cron
* Spawn terminal login processes (getty)
* Respawn terminated getty processes
* Monitor other special stuff in inittab
* Spawn random other services, without monitoring their state
* Act as a general catch-all for orphaned processes when they terminate
>
This was all before systemd came on the scene.

Actually traditional Unix "init" didn't do ALL those things. Most tended
to have the inittab config file. Even busybox's init has.

I can't think of a pre-systemd init that mounted filesystems, or spawned
things like syslog/cron. It ran other programs/systems that did most of
system-bring-up and the process control stuff one of which was SysV
initialise setup. Which, surprize though this might sound to some
people, was, at the time, an improvement on the startup setups that had
been common previously.