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Re: [RFC] Fix getsid(0)


From: Thomas Bushnell BSG
Subject: Re: [RFC] Fix getsid(0)
Date: Tue, 17 Jan 2006 11:33:48 -0800
User-agent: Gnus/5.110004 (No Gnus v0.4) Emacs/21.4 (gnu/linux)

Samuel Thibault <address@hidden> writes:

> Thomas Bushnell BSG, le Tue 17 Jan 2006 00:46:49 -0800, a écrit :
>> Samuel Thibault <address@hidden> writes:
>> 
>> > Currently, setsid(0) always return 1, while it should return the sid of
>> > the calling process.  Here is a proposed patch:
>> 
>> I have no particular objection, but what is the standard that
>> specifies its return value this way?
>> 
>> Despite the suggestive name of setsid, there is no such thing in Posix
>> as a "session id".
>
> It's an XSI extension:
>
> « The getsid() function shall obtain the process group ID of the
> process that is the session leader of the process specified by pid. If
> pid is (pid_t)0, it specifies the calling process. »

Oh, getsid certainly should do this.

So is there a bug in setsid?  Is there one in getsid?





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