2 # Ensure that several programs work fine, even with stdout initially closed.
3 # This is effectively a test of closeout.c's close_stdout function.
5 # Copyright (C) 2004, 2006-2009 Free Software Foundation, Inc.
7 # This program is free software: you can redistribute it and/or modify
8 # it under the terms of the GNU General Public License as published by
9 # the Free Software Foundation, either version 3 of the License, or
10 # (at your option) any later version.
12 # This program is distributed in the hope that it will be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
20 if test "$VERBOSE" = yes; then
30 # Ensure these exit successfully, even though stdout is closed,
31 # because they generate no output.
35 chmod o-w . >&- || fail=1
43 "$p/src/true" >&- || fail=1
44 "$p/src/printf" '' >&- || fail=1
46 # If >&- works, ensure these fail, because stdout is closed and they
47 # *do* generate output. >&- apparently does not work in HP-UX 11.23.
48 # This test is ineffective unless /dev/stdout also works.
49 if "$p/src/test" -w /dev/stdout >/dev/null &&
50 "$p/src/test" ! -w /dev/stdout >&-; then
51 "$p/src/printf" 'foo' >&- 2>/dev/null && fail=1
52 cp --verbose a b >&- 2>/dev/null && fail=1
55 # Likewise for /dev/full, if /dev/full works.
56 if test -w /dev/full && test -c /dev/full; then
57 "$p/src/printf" 'foo' >/dev/full 2>/dev/null && fail=1
58 cp --verbose a b >/dev/full 2>/dev/null && fail=1