From owner-freebsd-current Fri Jul 13 10:49: 4 2001 Delivered-To: freebsd-current@freebsd.org Received: from hawk.mail.pas.earthlink.net (hawk.mail.pas.earthlink.net [207.217.120.22]) by hub.freebsd.org (Postfix) with ESMTP id C6D3C37B401 for ; Fri, 13 Jul 2001 10:49:01 -0700 (PDT) (envelope-from tlambert2@mindspring.com) Received: from mindspring.com (dialup-209.245.130.157.Dial1.SanJose1.Level3.net [209.245.130.157]) by hawk.mail.pas.earthlink.net (EL-8_9_3_3/8.9.3) with ESMTP id KAA05428; Fri, 13 Jul 2001 10:48:17 -0700 (PDT) Message-ID: <3B4F3485.DE6DC3E5@mindspring.com> Date: Fri, 13 Jul 2001 10:48:53 -0700 From: Terry Lambert Reply-To: tlambert2@mindspring.com X-Mailer: Mozilla 4.7 [en]C-CCK-MCD {Sony} (Win98; U) X-Accept-Language: en MIME-Version: 1.0 To: Garrett Wollman Cc: Giorgos Keramidas , freebsd-current@FreeBSD.ORG Subject: Re: cannot print to remote printer References: <873d83pquy.wl@wilhelm.noname> <20010711214311.C2855@heechee.tobez.org> <200107120645.f6C6jtP45267@uriah.heep.sax.de> <20010712122148.B10960@heechee.tobez.org> <86k81eaqcj.fsf@hades.hell.gr> <200107122117.f6CLHsl43063@khavrinen.lcs.mit.edu> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG Garrett Wollman wrote: > > I might be wrong in many ways, but... > > > is it then mandatory that you `reset' SIGCHLD to SIG_DFL ? > > Possibly. In the general case (as specified by standards), what > happens to SIGCHLD if it was set to SIG_IGN before exec() is > ill-defined. Some systems will inherit the SIG_IGN setting, which > will then cause any executed program that depends on wait() working > (e.g., shells) to fail. > > The new POSIX draft, at least, sanctions the automatic reset of > SIGCHLD to SIG_DFL upon exec(). How does the "NOHUP" program continue to function in light of this reset demand? -- Terry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message