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argp --help infloop bug


From: Jim Meyering
Subject: argp --help infloop bug
Date: Fri, 09 Dec 2005 15:08:43 +0100

You can make any argp-using program infloop simply by running it
with --help and with something like ARGP_HELP_FMT=rmargin=a in the
environment.  Or use a valid (but small) width: ARGP_HELP_FMT=rmargin=2

  $ time ARGP_HELP_FMT=rmargin=2 tar --help > /dev/null
  ARGP_HELP_FMT=rmargin=2 tar --help > /dev/null  35.49s user 0.17s system 97% 
cpu 36.648 total
  [Exit 130 (INT)]




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