Date: Fri, 27 Mar 2009 19:59:12 +0100 From: Tobias Rehbein <tobias.rehbein@web.de> To: Bruce Cran <bruce@cran.org.uk> Cc: freebsd-questions@freebsd.org Subject: Re: [perl] sysopen(CD, "/dev/cd0", O_RDONLY | O_NONBLOCK) fails Message-ID: <20090327185912.GA77908@sushi.pseudo.local> In-Reply-To: <20090326221128.3a6d648f@gluon.draftnet> References: <20090326212045.GB3134@sushi.pseudo.local> <20090326221128.3a6d648f@gluon.draftnet>
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Am Thu, Mar 26, 2009 at 10:11:28PM +0000 schrieb Bruce Cran:
>=20
> sysopen certainly works on FreeBSD:
>=20
> > perl
> use POSIX;
> sysopen(CD,"/dev/acd0", O_RDONLY|O_NONBLOCK) || perror("sysopen")
>=20
> and before I fixed the permissions:
>=20
> > perl
> use POSIX;
> sysopen(CD,"/dev/acd0", O_RDONLY|O_NONBLOCK) || perror("sysopen")
> sysopen: Permission denied
Hm. Tried this and got ineresting results:
> use POSIX;
> sysopen(CD,"/dev/cd0", O_RDONLY|O_NONBLOCK) || perror("sysopen")
works fine, but
> use POSIX;
> sysopen(CD,"/dev/cd0", O_RDONLY|O_NONBLOCK)
> print "$!"
prints "No such file or directory"
Well, I think I'll have to accept that sysopen works but $! does not... Aft=
er
all sysopen is more important to me ;)
Regards Tobias
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