How to programaticaly gain root privileges ?

Posted by ereOn on Stack Overflow See other posts from Stack Overflow or by ereOn
Published on 2010-03-20T16:12:07Z Indexed on 2010/03/20 16:21 UTC
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I am writing a software (in C++, for Linux/Mac OSX) which runs as a non-privileged user and but needs root privileges at some point (to create a new virtual device).

Running this program as root is not a option (mainly for security issues) and I need to know the identity (uid) of the "real" user.

Is there a way to mimic the "sudo" command behavior (ask for user password) to temporarily gain root privileges and perform the particular task ? If so, which functions would I use ?

Thank you very much for your help !

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