I like this the best of any set of daemon flags discussed so far. Very
clear, and usefully separated into chunks. FWIW, this gets my vote.
Geo Carncross wrote:
...
Yeah, except note use you the word fork in defining detach. Better to
say:
-P: [pre]fork processes for handling children
-D: detach from console by closing fds 0..93 inclusive after starting
-B: put dbmail in the background (because for some reason you're
starting dbmail from something that isn't a shell and you can't use &)
-G: start dbmail in its own process group (setpgid) so that stupid
programs (like pppd) don't kill it when a user disconnects- even more
useful if someone starts it from a serial console and has a SAK
-S: start dbmail in its own session (setsid)- implies -G, and requires
-D (and the operations performed by -D must be done before setsid())
I'm not married to these switches- anything is fine, but there is
something important about them: none of these definitions are negative;
none of these switches "stop" dbmail from doing something. That's
confusing.
If the "default" should be something else, I recommend using a wrapper
script as I described earlier.
...
