2 # Tests for file descriptor exhaustion.
4 # Copyright (C) 2009 Free Software Foundation, Inc.
6 # This program is free software: you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation, either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <http://www.gnu.org/licenses/>.
19 if test "$VERBOSE" = yes; then
26 # Skip the test when running under valgrind.
27 ( ulimit -n 6; sort < /dev/null ) \
28 || skip_test_ 'fd-limited sort failed; are you running under valgrind?'
30 for i in $(seq 31); do
31 echo $i | tee -a in > __test.$i || framework_failure
37 exec 0</dev/null 3<&- 4<&- 5<&-
38 sort -n -m __test.* > out
40 compare in out || { fail=1; echo 'file descriptor exhaustion not handled' 1>&2; }
42 echo 32 | tee -a in > in1
46 sort -n -m __test.* - < in1 > out
48 compare in out || { fail=1; echo 'stdin not handled properly' 1>&2; }