linux-kernel - Re: RFC: implement daemon() in the kernel

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Date:	Tue, 21 Nov 2006 10:30:41 +0100
From:	Michal Schmidt <xschmi00@...d.feec.vutbr.cz>
To:	"H. Peter Anvin" <hpa@...or.com>
CC:	Simon Richter <Simon.Richter@...yros.de>,
	linux-kernel@...r.kernel.org
Subject: Re: RFC: implement daemon() in the kernel

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?

> 
>>         _exit(0);
> 
>     setsid();
>> }
>>

Michal
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