1#!/bin/sh 2# vim: filetype=sh noexpandtab ts=8 sw=8 3# $FreeBSD: head/tools/regression/pjdfstest/tests/truncate/00.t 211352 2010-08-15 21:24:17Z pjd $ 4 5desc="truncate descrease/increase file size" 6 7dir=`dirname $0` 8. ${dir}/../misc.sh 9 10echo "1..21" 11 12n0=`namegen` 13n1=`namegen` 14 15expect 0 mkdir ${n1} 0755 16cdir=`pwd` 17cd ${n1} 18 19expect 0 create ${n0} 0644 20expect 0 truncate ${n0} 1234567 21expect 1234567 lstat ${n0} size 22expect 0 truncate ${n0} 567 23expect 567 lstat ${n0} size 24expect 0 unlink ${n0} 25 26dd if=/dev/random of=${n0} bs=12345 count=1 >/dev/null 2>&1 27expect 0 truncate ${n0} 23456 28expect 23456 lstat ${n0} size 29expect 0 truncate ${n0} 1 30expect 1 lstat ${n0} size 31expect 0 unlink ${n0} 32 33# successful truncate(2) updates ctime. 34expect 0 create ${n0} 0644 35ctime1=`${fstest} stat ${n0} ctime` 36sleep 1 37expect 0 truncate ${n0} 123 38ctime2=`${fstest} stat ${n0} ctime` 39test_check $ctime1 -lt $ctime2 40expect 0 unlink ${n0} 41 42# unsuccessful truncate(2) does not update ctime. 43expect 0 create ${n0} 0644 44ctime1=`${fstest} stat ${n0} ctime` 45sleep 1 46expect EACCES -u 65534 truncate ${n0} 123 47ctime2=`${fstest} stat ${n0} ctime` 48test_check $ctime1 -eq $ctime2 49expect 0 unlink ${n0} 50 51cd ${cdir} 52expect 0 rmdir ${n1} 53