Date: Sat, 28 Mar 2009 12:30:26 +0100 From: Mel Flynn <mel.flynn+fbsd.questions@mailing.thruhere.net> To: freebsd-questions@freebsd.org Cc: Ian Rose <ianrose@eecs.harvard.edu> Subject: Re: most signals not being delivered to processes Message-ID: <200903281230.26513.mel.flynn%2Bfbsd.questions@mailing.thruhere.net> In-Reply-To: <49CBEA9C.3040502@eecs.harvard.edu> References: <49CBDA39.10409@eecs.harvard.edu> <458C5AD3-A517-4253-A866-40685A2FC338@mac.com> <49CBEA9C.3040502@eecs.harvard.edu>
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On Thursday 26 March 2009 21:50:36 Ian Rose wrote: > However, hopefully the problem has gone away. Another member of our > team thinks that somehow the issue is related to some system services > (sshd and dhcpd) failing to completely detach from their controlling > terminal due to a setuid wrapper he set up, and thus they "are left > holding on to some old bad controlling terminal even though they > daemonize themselves". As a hint to your team member, daemon(8) program allows one to switch user before daemonizing and detaches properly when asked to. If he wishes to implement this in C himself, visit the setusercontext(3) manpage, which does the setuid() and login class limits automagically. -- Mel
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