Date: Mon, 15 Sep 2014 10:26:35 +0200 From: Mateusz Guzik <mjguzik@gmail.com> To: Erich Dollansky <erichsfreebsdlist@alogt.com> Cc: freebsd-stable <freebsd-stable@freebsd.org> Subject: Re: mq_open sets errno to 78 when queue does not exist Message-ID: <20140915082635.GA3042@dft-labs.eu> In-Reply-To: <20140915145912.361a25e9@X220.alogt.com> References: <20140915145912.361a25e9@X220.alogt.com>
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On Mon, Sep 15, 2014 at 02:59:12PM +0800, Erich Dollansky wrote:
> Hi,
>
> I have a very simple program. It basically tries to open a message
> queue which does not exists. mq_open returns then -1 but errno is set
> to 78 which is defined as this:
>
> #define ENOSYS 78 /* Function not implemented */
>
> The line in question:
>
> res = mq_open ("/doesnotexist", O_RDWR);
>
> "/doesnotexists" is the non-existing message queue the program tests
> for. res will be set correctly to -1 but errno is set then to 78.
>
> If I want to create the message queue, I will get the same error.
>
> uname -a says:
>
> FreeBSD X220.alogt.com 10.1-PRERELEASE FreeBSD 10.1-PRERELEASE #45
> r271420: Sat Sep 13 15:09:34 WITA 2014
> erich@X220.alogt.com:/usr/obj/usr/src/sys/X220 amd64
>
> Do I see or do something wrong or is this an error?
>
Do you have mqueuefs loaded?
--
Mateusz Guzik <mjguzik gmail.com>
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