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Re: Question about libcc.fs and finding path of dynamic library

From: Bernd Paysan
Subject: Re: Question about libcc.fs and finding path of dynamic library
Date: Tue, 10 Mar 2020 00:44:31 +0100

Am Montag, 9. März 2020, 21:14:41 CET schrieb Philip Smith:
> I have some code that needs to run as root.  I was planning to do this via
> inetd the super-server and calling the code as root like example inetd.conf
> here:
> myservice stream tcp nowait root /pathtomycode/mycode.fs mycode.fs -e
> "startingword"
> This configuration works until i start to use c-library stuff.
> The version of Gforth i am using is 0.7.9_20200206
> If i first run the code as root from cmd line so the library stuff gets
> compiled there is no problem and the library stuff gets put in
> /root/.cache/gforth/arm/libcc-tmp path.
> Then if i try to use curl to call the code via inetd i get errors telling
> me "no such file or directory c-library mylibrary"  .
> I know the curl command is calling the code because if i remove the library
> from the code i can make this stuff work.
> My question is there some work around here to use a fixed path to my
> library?
> I did some testing using apache web server and i presume it uses www-data
> as the user but it generates the same errors so it seems to me that
> libcc.fs is trying to find some path that it cant find.
> I see the path's used in libcc.fs having something like "~/.cache......" at
> the start so i know it is done in that libcc.fs code but it seems to me
> that the "~/" should allow the root access of inetd to work and yet it does
> not!
> I know this is a complex problem and i am asking a lot here but any help
> would be appreciated!

inetd probably has some jailing to prevent you to access ~/.cache or so.  
Anyways GFORTHCCPATH is the environment variable that is used as search path 
for libraries when set; and for build purpose, there's also libccdir 
(lowercase) that does the same thing.

Bernd Paysan
"If you want it done right, you have to do it yourself"
net2o id: kQusJzA;7*?t=uy@X}1GWr!+0qqp_Cn176t4(dQ*

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