65 lines
2.4 KiB
Bash
Executable file
65 lines
2.4 KiB
Bash
Executable file
#!/bin/sh
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# Ensure that several programs work fine, even with stdout initially closed.
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# This is effectively a test of closeout.c's close_stdout function.
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# Copyright (C) 2004-2025 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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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ rm
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p=$abs_top_builddir
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# Ensure these exit successfully, even though stdout is closed,
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# because they generate no output.
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touch a
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cp a b >&- || fail=1
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test -f b || fail=1
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chmod o-w . >&- || fail=1
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ln a c >&- || fail=1
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rm c >&- || fail=1
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mkdir d >&- || fail=1
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mv d e >&- || fail=1
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rmdir e >&- || fail=1
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touch e >&- || fail=1
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sleep 0 >&- || fail=1
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"$p/src/true" >&- || fail=1
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"$p/src/printf" '' >&- || fail=1
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# If >&- works, ensure these fail, because stdout is closed and they
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# *do* generate output. >&- apparently does not work in HP-UX 11.23.
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# This test is ineffective unless /dev/stdout also works.
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if "$p/src/test" -w /dev/stdout >/dev/null &&
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"$p/src/test" ! -w /dev/stdout >&-; then
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returns_ 1 "$p/src/printf" 'foo' >&- 2>/dev/null || fail=1
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returns_ 1 cp --verbose a b >&- 2>/dev/null || fail=1
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rm -Rf tmpfile-?????? || fail=1
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returns_ 1 mktemp tmpfile-XXXXXX >&- 2>/dev/null || fail=1
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returns_ 1 mktemp tmpfile-XXXXXX -q >&- 2>/dev/null || fail=1
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case $(echo tmpfile-??????) in 'tmpfile-??????') ;; *) fail=1 ;; esac
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fi
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# Likewise for /dev/full, if /dev/full works.
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if test -w /dev/full && test -c /dev/full; then
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returns_ 1 "$p/src/printf" 'foo' >/dev/full 2>/dev/null || fail=1
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returns_ 1 cp --verbose a b >/dev/full 2>/dev/null || fail=1
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rm -Rf tmpdir-?????? || fail=1
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returns_ 1 mktemp -d tmpdir-XXXXXX >/dev/full 2>/dev/null || fail=1
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returns_ 1 mktemp -d -q tmpdir-XXXXXX >/dev/full 2>/dev/null || fail=1
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case $(echo tmpfile-??????) in 'tmpfile-??????') ;; *) fail=1 ;; esac
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fi
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Exit $fail
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