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#!/bin/sh
# Exercise an abort-inducing flaw in inotify-enabled tail -F.
# Like inotify-hash-abuse, but without a hard-coded "9".
# Copyright (C) 2009-2020 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_ tail
# Terminate any background tail process
cleanup_() { kill $pid 2>/dev/null && wait $pid; }
# Speedup the non inotify case
fastpoll='-s.1 --max-unchanged-stats=1'
for mode in '' '---disable-inotify'; do
touch f || framework_failure_
tail $mode $fastpoll -F f & pid=$!
for i in $(seq 200); do
kill -0 $pid || break;
mv f g
touch f
done
# Ensure tail hasn't aborted
kill -0 $pid || fail=1
cleanup_
done
Exit $fail
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