commands/tar/test/test-overwrite.sh

   1 #!/bin/sh
   2 # Copyright (c) 2007 Tim Kientzle
   3 # All rights reserved.
   4 #
   5 # Redistribution and use in source and binary forms, with or without
   6 # modification, are permitted provided that the following conditions
   7 # are met:
   8 # 1. Redistributions of source code must retain the above copyright
   9 #    notice, this list of conditions and the following disclaimer.
  10 # 2. Redistributions in binary form must reproduce the above copyright
  11 #    notice, this list of conditions and the following disclaimer in the
  12 #    documentation and/or other materials provided with the distribution.
  13 #
  14 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR
  15 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  16 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  17 # IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT,
  18 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  19 # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  20 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  21 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  23 # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24 #
  25 # $FreeBSD: src/usr.bin/tar/test/test-overwrite.sh,v 1.1 2007/03/11 10:36:42 kientzle Exp $
  26
  27 echo "Test overwrite avoidance"
  28 . `dirname $0`/config.sh
  29
  30 # Create a file with some data.
  31 # This ensures that test.tar actually has some data in it
  32 # by the time tar tries to add it to itself.
  33 dd if=/dev/urandom of=a bs=1k count=100 >/dev/null 2>&1
  34
  35 # Now try to implicitly add archive to itself
  36 ${BSDTAR} -cf test.tar . || echo XXX FAILED XXX
  37
  38 # Create another file
  39 dd if=/dev/urandom of=b bs=1k count=100 >/dev/null 2>&1
  40
  41 # Try again.
  42 ${BSDTAR} -cf test.tar . || echo XXX FAILED XXX
  43
  44 # Extract the archive and check that the two files got archived, despite the warning
  45 mkdir compare
  46 cd compare
  47 ${BSDTAR} -xf ../test.tar
  48 cmp a ../a || echo XXX a didn't archive correctly XXX
  49 cmp b ../b || echo XXX b didn't archive correctly XXX
  50
  51 # TODO: Test overwrite avoidance on extract