124 lines
3.7 KiB
Bash
Executable file
124 lines
3.7 KiB
Bash
Executable file
#!/bin/sh
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# Miscellaneous tests for "ln".
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# Copyright (C) 1998-2025 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 <https://www.gnu.org/licenses/>.
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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ ln
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t=tln-symlink
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d=tln-subdir
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ld=tln-symlink-to-subdir
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f=tln-file
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# Create a simple symlink with both source and destination files
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# in current directory.
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touch $f || framework_failure_
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rm -f $t || framework_failure_
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ln -s $f $t || fail=1
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test -f $t || fail=1
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rm $t $f
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# Create a symlink with source file and explicit destination directory/file.
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touch $f || framework_failure_
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rm -rf $d || framework_failure_
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mkdir $d || framework_failure_
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ln -s ../$f $d/$t || fail=1
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test -f $d/$t || fail=1
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rm -rf $d $f
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# Create a symlink with source file and destination directory.
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touch $f || framework_failure_
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rm -rf $d || framework_failure_
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mkdir $d || framework_failure_
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ln -s ../$f $d || fail=1
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test -f $d/$f || fail=1
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rm -rf $d $f
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# See whether a trailing slash is followed too far.
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touch $f || framework_failure_
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rm -rf $d || framework_failure_
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mkdir $d $d/$f || framework_failure_
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returns_ 1 ln $f $d/ 2> /dev/null || fail=1
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returns_ 1 ln -s $f $d/ 2> /dev/null || fail=1
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rm -rf $d $f
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# Make sure we get a failure with existing dest without -f option
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touch $t || framework_failure_
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# FIXME: don't ignore the error message but rather test
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# it to make sure it's the right one.
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returns_ 1 ln -s $t $t 2> /dev/null || fail=1
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rm $t
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# Make sure -sf fails when src and dest are the same
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touch $t || framework_failure_
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returns_ 1 ln -sf $t $t 2> /dev/null || fail=1
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rm $t
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# Create a symlink with source file and no explicit directory
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rm -rf $d || framework_failure_
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mkdir $d || framework_failure_
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touch $d/$f || framework_failure_
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ln -s $d/$f || fail=1
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test -f $f || fail=1
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rm -rf $d $f
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# Create a symlink with source file and destination symlink-to-directory.
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rm -rf $d $f $ld || framework_failure_
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touch $f || framework_failure_
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mkdir $d || framework_failure_
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ln -s $d $ld
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ln -s ../$f $ld || fail=1
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test -f $d/$f || fail=1
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rm -rf $d $f $ld
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# Create a symlink with source file and destination symlink-to-directory.
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# BUT use the new --no-dereference option.
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rm -rf $d $f $ld || framework_failure_
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touch $f || framework_failure_
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mkdir $d || framework_failure_
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ln -s $d $ld
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af=$(pwd)/$f
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ln --no-dereference -fs "$af" $ld || fail=1
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test -f $ld || fail=1
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rm -rf $d $f $ld
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# Try to create a symlink with backup where the destination file exists
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# and the backup file name is a hard link to the destination file.
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touch a b || framework_failure_
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ln b b~ || framework_failure_
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ln -f --b=simple a b || fail=1
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# ===================================================
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# Make sure ln can make simple backups.
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# This was fixed in 4.0.34. Broken in 4.0r.
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for cmd in ln cp mv ginstall; do
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rm -rf a x a.orig
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touch a x || framework_failure_
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$cmd --backup=simple --suffix=.orig x a || fail=1
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test -f a.orig || fail=1
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done
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# ===================================================
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# With coreutils-5.2.1, this would mistakenly access argv[1][-1].
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# I'm including it here, in case some day programs like valgrind detect that.
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# Purify probably would have done so.
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ln foo '' 2> /dev/null
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# ===================================================
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Exit $fail
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