Is fork() hook ever possible?

[Poul-Henning Kamp]

In message <200809161628.54085.jhb at freebsd.org>, John Baldwin writes:

>The PID isn't the seed, he's using a PID change as a notification that the 
>process needs to do a re-stir the next time it wants a psuedo-random number 
>(b/c the PID change means it is now a new process).

Seems to be a vast overkill to me, in countless other contexts,
it is the responsibility of the programmer to do what needs done on
a fork, and I see no reason why this couldn't be likewise.

The majority of forks don't care a hoot about arc4random() because
the call exec after a bit of plumbing on filedescriptors.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.