Nolan Darilek writes:
> I'm now about to encounter something, and was wondering if some of you
> more experienced coders could give me some advice. Is there some way
> of determining which program is running in the foreground? E.g. If
> someone is at the shell prompt, I'd like to somehow know that
> /usr/bin/tcsh is running in the foreground.
On linux, getsid(0) will give you the "session id", which I think is the
process id of the "session leader", which is usually the shell. Then you
could use that number to read /proc/NNN/cmdline to get the shell name.
> I was told that there was no standard way of doing this, but I was
> wondering if anyone had another opinion?
As far as I know, getsid() is linux specific. /proc too.
> Are there any functions that I can use for this purpose?
getppid() gets the parent process ID. This is more portable, but may not
work in some situations (because of forking).
Anyway hope that helps.
Cheers,
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Andrew Apted <ajapted@xxxxxxxxxxxxxxx> \/