Re: Bizarre Proc::Daemon error

At the risk of stating the obvious, the isa() test failed as no Proc::Daemon object was returned by Proc::Daemon::Init() call, which in turn had failed, as OP found later (thanks for the update), while changing of user id.

ref test might have been added in 0.10 before eval{ isa() }. You may be using a version around there. (Somebody please give me a clue if it is possible to browse older versions code on MetaCPAN (as it is(or was?) possible on search.cpan).)

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Re^2: Bizarre Proc::Daemon error # Older versions code on MetaCPAN by LanX (Saint) on Jun 10, 2014 at 02:53 UTC
> (Somebody please give me a clue if it is possible to browse older versions code on MetaCPAN (as it is(or was?) possible on search.cpan).) Yes! Click `Release Info` then you'll find a drop down named `Jump to version`. HTH! :) Cheers Rolf (addicted to the Perl Programming Language)	[reply] [d/l] [select]
Re^3: Bizarre Proc::Daemon error # Older versions code on MetaCPAN by parv (Parson) on Jun 11, 2014 at 23:46 UTC
Thanks much, LanX; ITH.	[reply]
Re^2: Bizarre Proc::Daemon error by xtpu2 (Acolyte) on Jun 10, 2014 at 01:39 UTC
I'm using Proc::Daemon version 0.14. Do you have any ideas why the uid change is causing this failure? I guess I can always work around this problem by starting the script with `sudo user`, but I like getting things working the way they're supposed to... Actually, I don't even know if `sudo user` will work. Could it be that the problem is something about the user I'm trying to use?	[reply]
Re^3: Bizarre Proc::Dachanges the emon error by Anonymous Monk on Jun 10, 2014 at 10:57 UTC
Proc::Daemon calls `&POSIX::setuid` but does not check if the call has failed. Try yourself as root (or, via `sudo`) the user id change ... `perl -MPOSIX=setuid -e ' sub show { printf qq[%s: real: %d, effective: %d\n] , $_[0] , $< , $ +> } show( q[current] ); $id = 65535; # Change to the desired value. setuid( $id ) or die qq[cannot change to $id: $!]; show( q[post-change] ) '` [download] ... also check `setuid` system call documentation for your system.	[reply] [d/l] [select]