I have "hit" this "same" problem,
at Debian squeeze and nvi version 1.81.6-8.1 :
Using  nview  opens the file readonly but then re-opens it read/write,
as seen with commands:
  echo abc > txt
  strace -oout nview txt        # use :q to quit
  grep txt out                  # shows (amongst other things):
    open("txt", O_RDONLY|O_LARGEFILE)       = 4
    open("txt", O_RDWR)                     = 4
(which is the same sequence that nvi would do).
This causes execution of various, e.g. CGI, scripts fail while the owner
is just viewing the source.

Cheers, Paul

Paul Szabo   p...@maths.usyd.edu.au   http://www.maths.usyd.edu.au/u/psz/
School of Mathematics and Statistics   University of Sydney    Australia



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