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# Ensure dd treats '--' properly.
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# Also test some flag values.
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# Copyright (C) 1999-2012 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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echo data > $tmp_in || framework_failure_
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ln $tmp_in $tmp_in2 || framework_failure_
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ln -s $tmp_in $tmp_sym || framework_failure_
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# check status=none suppresses all output to stderr
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dd status=none if=$tmp_in of=/dev/null 2> err || fail=1
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# check status=none is cumulative with status=noxfer
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dd status=none status=noxfer if=$tmp_in of=/dev/null 2> err || fail=1
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dd if=$tmp_in of=$tmp_out 2> /dev/null || fail=1
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compare $tmp_in $tmp_out || fail=1
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dd -- if=$tmp_in of=$tmp_out 2> /dev/null || fail=1
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compare $tmp_in $tmp_out || fail=1
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if dd oflag=append if=$tmp_in of=$tmp_out 2> /dev/null; then
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compare $tmp_in $tmp_out || fail=1
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case $(cat /dev/stdin <$tmp_in 2>/dev/null) in
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dd if=/dev/stdin of=$tmp_out <$tmp_in || fail=1
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compare $tmp_in $tmp_out || fail=1
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if dd iflag=nofollow if=$tmp_in count=0 2> /dev/null; then
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dd iflag=nofollow if=$tmp_sym count=0 2> /dev/null && fail=1
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if dd iflag=directory if=. count=0 2> /dev/null; then
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dd iflag=directory count=0 <. 2> /dev/null || fail=1
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dd iflag=directory count=0 <$tmp_in 2> /dev/null && fail=1
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old_ls=$(ls -u --full-time $tmp_in)
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if dd iflag=noatime if=$tmp_in of=$tmp_out 2> /dev/null; then
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new_ls=$(ls -u --full-time $tmp_in)
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if test "x$old_ls" != "x$new_ls"; then
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=================================================================
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This operating system has the O_NOATIME file status flag,
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but it is silently ignored in some cases.
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Therefore, dd options like iflag=noatime may be silently ignored.
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=================================================================
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if dd oflag=nolinks if=$tmp_in of=$tmp_out 2> /dev/null; then
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dd iflag=nolinks if=$tmp_in > /dev/null 2>&1 && fail=1
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dd iflag=nolinks < $tmp_in > /dev/null 2>&1 && fail=1
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dd oflag=nolinks < $tmp_in > $tmp_out 2>&1 || fail=1
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outbytes=$(echo x | dd bs=3 ibs=10 obs=10 conv=sync 2>/dev/null | wc -c)
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test "$outbytes" -eq 3 || fail=1
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# A delay is required to trigger a failure.
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# There might be some missed failures but it's unlikely.
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(echo a; sleep .1; echo b) \
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| env LC_ALL=C dd bs=4 status=noxfer iflag=fullblock >out 2>err || fail=1
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printf 'a\nb\n' > out_ok || framework_failure_
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1+0 records out" > err_ok || framework_failure_
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compare out_ok out || fail=1
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compare err_ok err || fail=1
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test $fail -eq 0 && fail=$warn
added
removed
tests/dd/misc.sh
