Date: Sat, 27 Dec 2008 10:28:11 -0900 From: Mel <fbsd.questions@rachie.is-a-geek.net> To: freebsd-questions@freebsd.org, bseklecki@collaborativefusion.com Cc: Bill Moran <wmoran@collaborativefusion.com> Subject: Re: Default list of exported variables in sh(1) - $HOSTNAME Message-ID: <200812271028.11339.fbsd.questions@rachie.is-a-geek.net> In-Reply-To: <1230146554.4673.265.camel@soundwave.ws.pitbpa0.priv.collaborativefusion.com> References: <1230146554.4673.265.camel@soundwave.ws.pitbpa0.priv.collaborativefusion.com>
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On Wednesday 24 December 2008 10:22:34 Brian A. Seklecki wrote:
> All:
>
> I've got a fun problem ...
>
> I'm having trouble tracking down where the default list of exported
> variables is set for sh(1).
>
> I've got a piece of PHP code that runs on GNU/Linux but not FreeBSD
> because (I think) $HOSTNAME is exported by default.
>
> The PHP CLI calls $_ENV["HOSTNAME"], which under GNU/Linux returns:
>
> $ php -r 'print gethostbyaddr(gethostbyname($_ENV["HOSTNAME"]))'
> soundwave.ws....collaborativefusion.com
>
> In HTTP/CGI mode, I can call $_SERVER[]. But $_ENV[] should work in both
> CLI and HTTP mode.
>
> However, because Apache is spawned from sh(1) from rc(8) and in FreeBSD
> 6.x, $HOSTNAME is not exported by default, which is what $_ENV[] uses
> (getenv()):
>
> $ uname -a
> FreeBSD bdb00 6.3-RELEASE-p2
> $ export
> SSH_CLIENT
> USER
> MAIL
> HOME
> SSH_TTY
> PAGER
> ENV
> LOGNAME
> BLOCKSIZE
> TERM
> PATH
> SHELL
> SSH_CONNECTION
> FTP_PASSIVE_MODE
> EDITOR
I suspect linux to set them from .profile files (even /etc/profile) and not
hardcoded in a shell or login program. The default skeletons
in /usr/share/skel on FreeBSD does not set them. Neither
does /etc/login.conf.
I would set it in /etc/profile.
--
Mel
Problem with today's modular software: they start with the modules
and never get to the software part.
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