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closing file descriptors

From: rory
Subject: closing file descriptors
Date: Fri, 27 Sep 2002 21:32:44 -0700 (PDT)

This piece of code bothers me in env.c:

   * Require that the other file descriptios are closed. Should we use
   * sysconf() or getdtablesize() or getrlimit() or...
  for(i = 3; i < 1024; i++)
      (void) close(i);
  errno= 0;

I don't understand why this is done.

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