1#!/bin/sh
2# ensure that tail -f only uses inotify for regular files or fifos
3
4# Copyright (C) 2017-2023 Free Software Foundation, Inc.
5
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.
10
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.
15
16# You should have received a copy of the GNU General Public License
17# along with this program.  If not, see <https://www.gnu.org/licenses/>.
18
19. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
20print_ver_ tail
21
22grep '^#define HAVE_INOTIFY 1' "$CONFIG_HEADER" >/dev/null \
23  || skip_ 'inotify support required'
24
25require_strace_ 'inotify_add_watch'
26
27returns_ 124 timeout .1 strace -e inotify_add_watch -o strace.out \
28  tail -f /dev/null || fail=1
29
30grep 'inotify' strace.out && fail=1
31
32Exit $fail
33