[PATCH] udhcpc: give up on repeated errors

[Paul Fox]

peter wrote:
 > >>>>> "Denys" == Denys Vlasenko <vda.linux at googlemail.com> writes:
 > 
 > Hi,
 > 
 >  Denys> On Tuesday 20 May 2008 13:51, Peter Korsgaard wrote:
 >  >> From: Peter Korsgaard <jacmet at sunsite.dk>
 >  >> 
 >  >> udhcpc never time out if errors occur (E.G. if the network
 >  >> interface didn't detect a link), as the file descriptor keeps
 >  >> on being readable with the error condition (E.G. -ENETDOWN).
 >  >> 
 >  >> Add a max_errors and give up if it is exceeded.
 > 
 >  Denys> I as an admin often configure dhcp to run forever (until stopped
 >  Denys> by external means (SIGTERM)).
 > 
 >  Denys> Do I understand you correctly that the problem here is not that udhcpc
 >  Denys> loops here, but that it loops very fast (i.e. there is no delay)?
 > 
 > Well, that's a potential issue as well - but I basically just don't
 > want it to hang the boot sequence. I would prefer if it behaved like
 > it does when it doesn't get any replies to the discover (quit or going
 > into background depending on config).

why does it hang the boot sequence?  is it not in the background by then?

paul

 > I use ifup/down and the startup script does an ifup -a (Yes, I know
 > you don't like ifup, but yeah ..).
 > 
 >  Denys> Will it be an acceptable solution if we will just add a sleep(N)
 >  Denys> here:
 > 
 > That still doesn't make it time out, so no.
 > 
 > -- 
 > Bye, Peter Korsgaard
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=---------------------
 paul fox, pgf at brightstareng.com