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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2011 Red Hat, Inc. All Rights Reserved.
#
# FS QA Test No. 258
#
# Test timestamps prior to epoch
# On 64-bit, ext2/3/4 was sign-extending when read from disk
# See also commit 4d7bf11d649c72621ca31b8ea12b9c94af380e63
#
. ./common/preamble
_begin_fstest auto quick bigtime
# Import common functions.
# real QA test starts here
_supported_fs generic
_require_test
_require_negative_timestamps
TESTFILE=$TEST_DIR/timestamp-test.txt
# Create a file with a timestamp prior to the epoch
echo "Creating file with timestamp of Jan 1, 1960"
touch -t 196001010101 $TESTFILE
# Should yield -315593940 (prior to epoch)
echo "Testing for negative seconds since epoch"
ts=`stat -c %X $TESTFILE`
if [ "$ts" -ge 0 ]; then
echo "Timestamp wrapped: $ts"
_fail "Timestamp wrapped"
fi
# unmount, remount, and check the timestamp
echo "Remounting to flush cache"
_test_cycle_mount
# Should yield -315593940 (prior to epoch)
echo "Testing for negative seconds since epoch"
ts=`stat -c %X $TESTFILE`
if [ "$ts" -ge 0 ]; then
echo "Timestamp wrapped: $ts"
_fail "Timestamp wrapped"
fi
status=0 ; exit
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