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From: Jilles Tjoelker <jilles@FreeBSD.org>
Date: Sat, 17 Apr 2010 22:39:53 +0000 (UTC)
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Subject: cvs commit: src/bin/ln ln.c
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jilles      2010-04-17 22:39:53 UTC

  FreeBSD src repository

  Modified files:
    bin/ln               ln.c 
  Log:
  SVN rev 206773 on 2010-04-17 22:39:53Z by jilles
  
  ln: Refuse deleting a directory entry by hardlinking it to itself.
  
  Two pathnames refer to the same directory entry iff the directories match
  and the final components' names match.
  
  Example: (assuming file1 is an existing file)
    ln -f file1 file1
  This now fails while leaving file1 intact. It used to delete file1 and then
  complain it cannot be linked because it is gone.
  
  With -i, this error is detected before the question is asked.
  
  MFC after:      2 weeks
  
  Revision  Changes    Path
  1.40      +59 -2     src/bin/ln/ln.c