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#!/bin/sh
# Test some of cp's options and how cp handles situations in
# which a naive implementation might overwrite the source file.
# Copyright (C) 1998-2014 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 <http://www.gnu.org/licenses/>.
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
print_ver_ cp
# Unset CDPATH. Otherwise, output from the 'cd dir' command
# can make this test fail.
(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
VERSION_CONTROL=numbered; export VERSION_CONTROL
# Determine whether a hard link to a symlink points to the symlink
# itself or to its referent. For example, the link from FreeBSD6.1
# does dereference a symlink, but the one from Linux does not.
ln -s no-such dangling-slink
ln dangling-slink hard-link > /dev/null 2>&1 \
&& hard_link_to_symlink_does_the_deref=no \
|| hard_link_to_symlink_does_the_deref=yes
rm -f no-such dangling-slink hard-link
test $hard_link_to_symlink_does_the_deref = yes \
&& remove_these_sed='/^0 -[bf]*l .*sl1 ->/d' \
|| remove_these_sed='/^ELIDE NO TEST OUTPUT/d'
exec 3>&1 1> actual
# FIXME: This should be bigger: like more than 8k
contents=XYZ
for args in 'foo symlink' 'symlink foo' 'foo foo' 'sl1 sl2' 'foo hardlink'; do
for options in '' -d -f -df --rem -b -bd -bf -bdf \
-l -dl -fl -dfl -bl -bdl -bfl -bdfl; do
case $args$options in
# These tests are not portable.
# They all involve making a hard link to a symbolic link.
# In the past, we've skipped the tests that are not portable,
# by doing "continue" here and eliminating the corresponding
# expected output lines below. Don't do that anymore.
'symlink foo'-dfl)
continue;;
'symlink foo'-bdl)
continue;;
'symlink foo'-bdfl)
continue;;
'sl1 sl2'-dfl)
continue;;
'sl1 sl2'-bd*l)
continue;;
'sl1 sl2'-dl)
continue;;
esac
# cont'd Instead, skip them only on systems for which link does
# dereference a symlink. Detect and skip such tests here.
case $hard_link_to_symlink_does_the_deref:$args:$options in
'yes:sl1 sl2:-fl')
continue ;;
'yes:sl1 sl2:-bl')
continue ;;
'yes:sl1 sl2:-bfl')
continue ;;
esac
rm -rf dir
mkdir dir
cd dir
echo $contents > foo
case "$args" in *symlink*) ln -s foo symlink ;; esac
case "$args" in *hardlink*) ln foo hardlink ;; esac
case "$args" in *sl1*) ln -s foo sl1;; esac
case "$args" in *sl2*) ln -s foo sl2;; esac
(
(
# echo 1>&2 cp $options $args
cp $options $args 2>_err
echo $? $options
# Normalize the program name and diagnostics in the error output,
# and put brackets around the output.
if test -s _err; then
sed '
s/^[^:]*:\([^:]*\).*/cp:\1/
1s/^/[/
$s/$/]/
' _err
fi
# Strip off all but the file names.
ls=$(ls -gG --ignore=_err . \
| sed \
-e '/^total /d' \
-e 's/^[^ ]* *[^ ]* *[^ ]* *[^ ]* *[^ ]* *[^ ]* *//')
echo "($ls)"
# Make sure the original is unchanged and that
# the destination is a copy.
for f in $args; do
if test -f $f; then
case "$(cat $f)" in
"$contents") ;;
*) echo cp FAILED;;
esac
else
echo symlink-loop
fi
done
) | tr '\n' ' '
echo
) | sed 's/ *$//'
cd ..
done
echo
done
cat <<\EOF | sed "$remove_these_sed" > expected
1 [cp: 'foo' and 'symlink' are the same file] (foo symlink -> foo)
1 -d [cp: 'foo' and 'symlink' are the same file] (foo symlink -> foo)
1 -f [cp: 'foo' and 'symlink' are the same file] (foo symlink -> foo)
1 -df [cp: 'foo' and 'symlink' are the same file] (foo symlink -> foo)
0 --rem (foo symlink)
0 -b (foo symlink symlink.~1~ -> foo)
0 -bd (foo symlink symlink.~1~ -> foo)
0 -bf (foo symlink symlink.~1~ -> foo)
0 -bdf (foo symlink symlink.~1~ -> foo)
1 -l [cp: cannot create hard link 'symlink' to 'foo'] (foo symlink -> foo)
0 -dl (foo symlink -> foo)
0 -fl (foo symlink)
0 -dfl (foo symlink)
0 -bl (foo symlink symlink.~1~ -> foo)
0 -bdl (foo symlink symlink.~1~ -> foo)
0 -bfl (foo symlink symlink.~1~ -> foo)
0 -bdfl (foo symlink symlink.~1~ -> foo)
1 [cp: 'symlink' and 'foo' are the same file] (foo symlink -> foo)
1 -d [cp: 'symlink' and 'foo' are the same file] (foo symlink -> foo)
1 -f [cp: 'symlink' and 'foo' are the same file] (foo symlink -> foo)
1 -df [cp: 'symlink' and 'foo' are the same file] (foo symlink -> foo)
1 --rem [cp: 'symlink' and 'foo' are the same file] (foo symlink -> foo)
1 -b [cp: 'symlink' and 'foo' are the same file] (foo symlink -> foo)
0 -bd (foo -> foo foo.~1~ symlink -> foo) symlink-loop symlink-loop
1 -bf [cp: 'symlink' and 'foo' are the same file] (foo symlink -> foo)
0 -bdf (foo -> foo foo.~1~ symlink -> foo) symlink-loop symlink-loop
0 -l (foo symlink -> foo)
0 -dl (foo symlink -> foo)
0 -fl (foo symlink -> foo)
0 -bl (foo symlink -> foo)
0 -bfl (foo symlink -> foo)
1 [cp: 'foo' and 'foo' are the same file] (foo)
1 -d [cp: 'foo' and 'foo' are the same file] (foo)
1 -f [cp: 'foo' and 'foo' are the same file] (foo)
1 -df [cp: 'foo' and 'foo' are the same file] (foo)
1 --rem [cp: 'foo' and 'foo' are the same file] (foo)
1 -b [cp: 'foo' and 'foo' are the same file] (foo)
1 -bd [cp: 'foo' and 'foo' are the same file] (foo)
0 -bf (foo foo.~1~)
0 -bdf (foo foo.~1~)
0 -l (foo)
0 -dl (foo)
0 -fl (foo)
0 -dfl (foo)
0 -bl (foo)
0 -bdl (foo)
0 -bfl (foo foo.~1~)
0 -bdfl (foo foo.~1~)
1 [cp: 'sl1' and 'sl2' are the same file] (foo sl1 -> foo sl2 -> foo)
0 -d (foo sl1 -> foo sl2 -> foo)
1 -f [cp: 'sl1' and 'sl2' are the same file] (foo sl1 -> foo sl2 -> foo)
0 -df (foo sl1 -> foo sl2 -> foo)
0 --rem (foo sl1 -> foo sl2)
0 -b (foo sl1 -> foo sl2 sl2.~1~ -> foo)
0 -bd (foo sl1 -> foo sl2 -> foo sl2.~1~ -> foo)
0 -bf (foo sl1 -> foo sl2 sl2.~1~ -> foo)
0 -bdf (foo sl1 -> foo sl2 -> foo sl2.~1~ -> foo)
1 -l [cp: cannot create hard link 'sl2' to 'sl1'] (foo sl1 -> foo sl2 -> foo)
0 -fl (foo sl1 -> foo sl2)
0 -bl (foo sl1 -> foo sl2 sl2.~1~ -> foo)
0 -bfl (foo sl1 -> foo sl2 sl2.~1~ -> foo)
1 [cp: 'foo' and 'hardlink' are the same file] (foo hardlink)
1 -d [cp: 'foo' and 'hardlink' are the same file] (foo hardlink)
1 -f [cp: 'foo' and 'hardlink' are the same file] (foo hardlink)
1 -df [cp: 'foo' and 'hardlink' are the same file] (foo hardlink)
0 --rem (foo hardlink)
0 -b (foo hardlink hardlink.~1~)
0 -bd (foo hardlink hardlink.~1~)
0 -bf (foo hardlink hardlink.~1~)
0 -bdf (foo hardlink hardlink.~1~)
0 -l (foo hardlink)
0 -dl (foo hardlink)
0 -fl (foo hardlink)
0 -dfl (foo hardlink)
0 -bl (foo hardlink)
0 -bdl (foo hardlink)
0 -bfl (foo hardlink)
0 -bdfl (foo hardlink)
EOF
exec 1>&3 3>&-
compare expected actual 1>&2 || fail=1
Exit $fail
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