tests/cp/parent-perm-race

   1 #!/bin/sh
   2 # Make sure cp -pR --parents isn't too generous with parent permissions.
   3
   4 # Copyright (C) 2006-2009 Free Software Foundation, Inc.
   5
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 if test "$VERBOSE" = yes; then
  20   set -x
  21   cp --version
  22 fi
  23
  24 . $srcdir/test-lib.sh
  25
  26 umask 002
  27 mkdir mode ownership d || framework_failure
  28 chmod g+s d 2>/dev/null # The cp test is valid either way.
  29
  30 fail=0
  31
  32 for attr in mode ownership
  33 do
  34   mkfifo $attr/fifo ||
  35     skip_test_ "fifos not supported"
  36
  37   # Copy a fifo's contents.  That way, we can examine d/$attr's
  38   # state while cp is running.
  39   cp --preserve=$attr -R --copy-contents --parents $attr d &
  40   cp_pid=$!
  41
  42   (
  43     # Now 'cp' is reading the fifo.
  44     # Check the permissions of the temporary destination
  45     # directory that 'cp' has made.
  46     ls -ld d/$attr >d/$attr.ls
  47
  48     # Close the fifo so that "cp" can continue.  But output first,
  49     # before exiting, otherwise some shells would optimize away the file
  50     # descriptor that holds the fifo open.
  51     echo foo
  52   ) >$attr/fifo
  53
  54   ls_output=`cat d/$attr.ls` || fail=1
  55   case $attr,$ls_output in
  56   ownership,d???--[-S]--[-S]* | \
  57   mode,d????-??-?* | \
  58   mode,d??[-x]?w[-x]?-[-x]* )
  59     ;;
  60   *)
  61     fail=1;;
  62   esac
  63
  64   wait $cp_pid || fail=1
  65 done
  66
  67 Exit $fail