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