diff options
Diffstat (limited to 'tests/dd/misc.sh')
| -rwxr-xr-x | tests/dd/misc.sh | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/tests/dd/misc.sh b/tests/dd/misc.sh new file mode 100755 index 0000000..4d25c32 --- /dev/null +++ b/tests/dd/misc.sh @@ -0,0 +1,120 @@ +#!/bin/sh +# Ensure dd treats '--' properly. +# Also test some flag values. + +# Copyright (C) 1999-2020 Free Software Foundation, Inc. + +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or +# (at your option) any later version. + +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. + +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <https://www.gnu.org/licenses/>. + +. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src +print_ver_ dd + +tmp_in=dd-in +tmp_in2=dd-in2 +tmp_sym=dd-sym +tmp_out=dd-out + +warn=0 +echo data > $tmp_in || framework_failure_ +ln $tmp_in $tmp_in2 || framework_failure_ +ln -s $tmp_in $tmp_sym || framework_failure_ + +# check status=none suppresses all output to stderr +dd status=none if=$tmp_in of=/dev/null 2> err || fail=1 +compare /dev/null err || fail=1 +dd status=none if=$tmp_in skip=2 of=/dev/null 2> err || fail=1 +compare /dev/null err || fail=1 +# check later status=none overrides earlier status=noxfer +dd status=noxfer status=none if=$tmp_in of=/dev/null 2> err || fail=1 +compare /dev/null err || fail=1 +# check later status=noxfer overrides earlier status=none +dd status=none status=noxfer if=$tmp_in of=/dev/null 2> err || fail=1 +compare /dev/null err && fail=1 + +dd if=$tmp_in of=$tmp_out 2> /dev/null || fail=1 +compare $tmp_in $tmp_out || fail=1 + +rm $tmp_out +dd -- if=$tmp_in of=$tmp_out 2> /dev/null || fail=1 +compare $tmp_in $tmp_out || fail=1 + +if dd oflag=append if=$tmp_in of=$tmp_out 2> /dev/null; then + compare $tmp_in $tmp_out || fail=1 +fi + +case $(cat /dev/stdin <$tmp_in 2>/dev/null) in +(data) + rm -f $tmp_out + dd if=/dev/stdin of=$tmp_out <$tmp_in || fail=1 + compare $tmp_in $tmp_out || fail=1 +esac + +if dd iflag=nofollow if=$tmp_in count=0 2> /dev/null; then + returns_ 1 dd iflag=nofollow if=$tmp_sym count=0 2> /dev/null || fail=1 +fi + +if dd iflag=directory if=. count=0 2> /dev/null; then + dd iflag=directory count=0 <. 2> /dev/null || fail=1 + returns_ 1 dd iflag=directory count=0 <$tmp_in 2> /dev/null || fail=1 +fi + +old_ls=$(ls -u --full-time $tmp_in) +sleep 1 +if dd iflag=noatime if=$tmp_in of=$tmp_out 2> /dev/null; then + new_ls=$(ls -u --full-time $tmp_in) + if test "x$old_ls" != "x$new_ls"; then + cat >&2 <<EOF +================================================================= +$0: WARNING!!! +This operating system has the O_NOATIME file status flag, +but it is silently ignored in some cases. +Therefore, dd options like iflag=noatime may be silently ignored. +================================================================= +EOF + warn=77 + fi +fi + +if dd oflag=nolinks if=$tmp_in of=$tmp_out 2> /dev/null; then + returns_ 1 dd iflag=nolinks if=$tmp_in > /dev/null 2>&1 || fail=1 + returns_ 1 dd iflag=nolinks < $tmp_in > /dev/null 2>&1 || fail=1 + dd oflag=nolinks < $tmp_in > $tmp_out 2>&1 || fail=1 +fi + +outbytes=$(echo x | dd bs=3 ibs=10 obs=10 conv=sync 2>/dev/null | wc -c) +test "$outbytes" -eq 3 || fail=1 + +# A delay is required to trigger a failure. +# There might be some missed failures but it's unlikely. +(echo a; sleep .1; echo b) \ + | env LC_ALL=C dd bs=4 status=noxfer iflag=fullblock >out 2>err || fail=1 +printf 'a\nb\n' > out_ok || framework_failure_ +echo "1+0 records in +1+0 records out" > err_ok || framework_failure_ +compare out_ok out || fail=1 +compare err_ok err || fail=1 + +test $fail -eq 0 && fail=$warn + +# Check a warning is issued for ambiguous 0x... numbers +dd if=/dev/null count=0x1 seek=0x1 skip=0x1 status=none 2>err || fail=1 +cat <<\EOF >exp +dd: warning: '0x' is a zero multiplier; use '00x' if that is intended +dd: warning: '0x' is a zero multiplier; use '00x' if that is intended +dd: warning: '0x' is a zero multiplier; use '00x' if that is intended +EOF +compare exp err || fail=1 + + +Exit $fail |