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    copied!<p>For some unfortunate reasons, I have to convert a proprietary and binary library from a one-user per workstation to a multi-user per workstation setup.</p> <p><strong>Current setup</strong>. A user uses a program linked against a library. This library reads a system wide configuration file (using an hard-coded path, ie /usr/local/thelib/main.conf ) which itself contains several paths to several working directories. The wdir are themselves containing a bunch of user data files.</p> <p><strong>Desired outcome</strong>. Being able to manage several users on the same workstation. Of course, a user shall not be able to read nor alter any other user's data through the library, which should be taken care of by unix rights if I manage to feed the library a different working directory for each user.</p> <p>The library might be used by several users at the same time so ln-ing the configuration file in /usr/local at runtime is not an option.</p> <p>I was thinking of using FUSE in order to provide a different content for the file /usr/local/thelib/main.conf, depending on an environnement variable or the current unix user. The environnement var would then be used as a switch inside the code producing the configuration file.</p> <p>I'm confortable using Python, Perl or C.</p> <p>The workstation is running an up-to-date GNU/Linux Debian or Ubuntu distribution with a pretty recent kernel.</p> <p>So. What do you think :</p> <ul> <li>would you use FUSE ?</li> <li>would you produce another kind of wrapper - using chroot(2) was suggested below per janneb - ?</li> <li>use something else allowed by Linux ?</li> </ul> <p>I kinda know that I would be able to produce something functional but I'll get the community advice since I don't want to reinvent the wheel right now.</p> <p>Thanks. Florian</p>
 

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