Here's how to stop shell escapes from vi

[Jonathan I. Kamens]

In article <1990Sep30.174404.6132 at gorgon.uucp>, dag at gorgon.uucp (Daniel A. Glasser) writes:
|> My suggestion is to write a wrapping routine which checks the users gid or
|> uid (or whatever) and based on that either leaves the users PATH and SHELL
|> alone (for those who should be allowed to shell out of vi) or changes both
|> PATH and SHELL environment variables to something safe, (SHELL will point
|> to something like 'main(){write(0,"No shell for you!\n");exit(1);}'
|> and PATH to something which just has what vi might legitimately have to
|> get at.  This program will then exec the real vi.

  As someone else has already pointed out, it is possible to set the SHELL
environment variable from inside vi, using a vi command.

\begin{soapbox}
  Read the net before you post.  RTFM before you post.
\end{soapbox}

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