From: "H. Peter Anvin" <hpa@zytor.com>
To: Michal Schmidt <xschmi00@stud.feec.vutbr.cz>
Cc: Simon Richter <Simon.Richter@hogyros.de>, linux-kernel@vger.kernel.org
Subject: Re: RFC: implement daemon() in the kernel
Date: Tue, 21 Nov 2006 09:15:23 -0800 [thread overview]
Message-ID: <4563342B.9050500@zytor.com> (raw)
In-Reply-To: <4562C741.800@stud.feec.vutbr.cz>
Michal Schmidt wrote:
> H. Peter Anvin wrote:
>> Simon Richter wrote:
>>> int daemon(int nochdir, int noclose)
>>> {
>>> if(!nochdir)
>>> chdir("/");
>>>
>>> if(!noclose)
>>> {
>>> int fd = open("/dev/null", O_RDWR);
>>> dup2(fd, 0);
>>> dup2(fd, 1);
>>> dup2(fd, 2);
>>> close(fd);
>>> }
>>>
>>> if(fork() > 0)
>>
>> ... that should be if (fork() == 0) ...
>
> Are you sure? fork()==0 means we're the child, but it's the parent who
> should exit, isn't it?
>
Oh, right, of course. Thinko; the lack of error handling confused me.
I did that right in the assembly code.
-hpa
prev parent reply other threads:[~2006-11-21 17:15 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-20 13:20 RFC: implement daemon() in the kernel Simon Richter
2006-11-20 15:38 ` Mark Rustad
2006-11-20 17:42 ` Simon Richter
2006-11-20 20:48 ` Mark Rustad
2006-11-20 20:38 ` Jan Engelhardt
2006-11-21 0:38 ` H. Peter Anvin
2006-11-21 9:30 ` Michal Schmidt
2006-11-21 17:15 ` H. Peter Anvin [this message]
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