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f24ff8f42b
as POSIX requires. * src/dd.c (scanargs): Implement it. * tests/dd/misc (outbytes): Test it. * doc/coreutils.texi (dd invocation): Specify that bs=N overrides later ibs and obs, undoing part of the previous change. (The behavior was wrong.)
83 lines
2.4 KiB
Bash
Executable File
83 lines
2.4 KiB
Bash
Executable File
#!/bin/sh
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# Ensure dd treats `--' properly.
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# Also test some flag values.
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# Copyright (C) 1999, 2004, 2005, 2006 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 2 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, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# 02110-1301, USA.
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tmp_in=dd-in.$$
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tmp_in2=dd-in2.$$
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tmp_sym=dd-sym.$$
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tmp_out=dd-out.$$
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if test "$VERBOSE" = yes; then
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set -x
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dd --version
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fi
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test_failure=0
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echo data > $tmp_in || test_failure=1
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ln $tmp_in $tmp_in2 || test_failure=1
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ln -s $tmp_in $tmp_sym || test_failure=1
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if test $test_failure = 1; then
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echo 'failure in testing framework'
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exit 1
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fi
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dd if=$tmp_in of=$tmp_out 2> /dev/null || fail=1
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cmp $tmp_in $tmp_out || fail=1
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rm $tmp_out
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dd -- if=$tmp_in of=$tmp_out 2> /dev/null || fail=1
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cmp $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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cmp $tmp_in $tmp_out || fail=1
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fi
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if dd iflag=nofollow if=$tmp_in count=0 2> /dev/null; then
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dd iflag=nofollow if=$tmp_sym count=0 2> /dev/null && fail=1
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fi
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if dd iflag=directory if=. count=0 2> /dev/null; then
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dd iflag=directory count=0 <. 2> /dev/null || fail=1
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dd iflag=directory count=0 <$tmp_in 2> /dev/null && fail=1
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fi
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old_ls=`ls -u --full-time $tmp_in`
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sleep 1
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if dd iflag=noatime if=$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$new_ls"; then
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echo "dd iflag=noatime updated atime; O_NOATIME bug in your kernel?" >&2
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fail=1
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fi
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fi
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if dd oflag=nolinks if=$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 > $tmp_out 2>&1 || fail=1
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fi
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outbytes=`echo x | dd bs=3 ibs=10 obs=10 conv=sync 2>/dev/null | wc -c`
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test "$outbytes" -eq 3 || fail=1
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rm -f $tmp_in $tmp_in2 $tmp_sym $tmp_out
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exit $fail
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