49 lines
1.7 KiB
Bash
Executable file
49 lines
1.7 KiB
Bash
Executable file
#!/bin/sh
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# Test "ln -sf".
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# Copyright (C) 1997-2025 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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echo foo > a || framework_failure_
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# Check that a target directory of '.' is supported
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# and that indirectly specifying the same target and link name
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# through that is detected.
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ln -s . b || framework_failure_
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ln -sf a b > err 2>&1 && fail=1
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case $(cat err) in
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*'are the same file') ;;
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*) fail=1 ;;
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esac
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# Ensure we replace symlinks that don't or can't link to an existing target.
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# coreutils-8.22 would fail to replace {ENOTDIR,ELOOP,ENAMETOOLONG}_link below.
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# We apply a limit since AIX returns 2^32-1 which would trigger resource issues.
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name_max=$(stat -f -c %l .) && test "$name_max" -lt $((1024*1024)) ||
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name_max=1 # skip this portion of the test
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name_max_plus1=$(expr $name_max + 1)
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long_name=$(printf '%*s' $name_max_plus1 | tr ' ' '0')
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for f in '' f; do
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ln -s$f missing ENOENT_link || fail=1
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ln -s$f a/b ENOTDIR_link || fail=1
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ln -s$f ELOOP_link ELOOP_link || fail=1
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ln -s$f "$long_name" ENAMETOOLONG_link || fail=1
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done
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Exit $fail
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