Date: Fri, 22 Sep 1995 09:10:21 +0200 (SAT) From: John Hay <jhay@mikom.csir.co.za> To: vince@apollo.COSC.GOV (-Vince-) Cc: FreeBSD-hackers@freefall.freebsd.org Subject: Re: Masterplan 1.00 (fwd) Message-ID: <199509220710.JAA10372@zibbi.mikom.csir.co.za> In-Reply-To: <Pine.BSF.3.91.950921235313.19640S-100000@apollo.COSC.GOV> from "-Vince-" at Sep 21, 95 11:53:59 pm
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>
> On Thu, 14 Sep 1995, John Hay wrote:
>
> Hi John and everyone,
>
> > > I am attempting to get masterplan working under FreeBSD but have
> > > been unsuccessful so I emailed the author and was told that FreeBSD
> > > doesn't allow named pipes to be created. Can anyone confirm this and
> > > know what I can do to get masterplan working? Thanks..
> > >
> > It is just called something else. mkfifo
>
> Oh okay but is there really anything different about mknod and mkfifo?
>
Well I'm not sure, not having used it on other machines that have mknod. Here
is a piece of a program that create the fifo and open the read side.
if (mkfifo(pipe_pathname, (mode_t)(S_IREAD | S_IWRITE)) == -1)
if (errno != EEXIST)
return errno;
/*
* Open `read' end of the pipe.
* (The probe daemon will open the `write' end shortly.)
*/
if ((probe_rdport = open(pipe_pathname, O_RDONLY | O_NDELAY)) == -1)
return errno;
And here is the piece that open it for writing:
/* open `write' end of pipe */
if ((pipe_wrport = open(argv[1], O_WRONLY | O_NDELAY)) == -1) {
syslog(LOG_CRIT, "Cannot open write end of pipe: %m");
terminate();
}
I hope this helps.
John
--
John Hay -- John.Hay@csir.co.za
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