5a31155215
It is released from time to time and used outside FreeBSD, so it is good to have a name one can google.
52 lines
1.0 KiB
Bash
52 lines
1.0 KiB
Bash
#!/bin/sh
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# $FreeBSD$
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desc="truncate descrease/increase file size"
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dir=`dirname $0`
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. ${dir}/../misc.sh
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echo "1..21"
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n0=`namegen`
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n1=`namegen`
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expect 0 mkdir ${n1} 0755
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cdir=`pwd`
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cd ${n1}
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expect 0 create ${n0} 0644
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expect 0 truncate ${n0} 1234567
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expect 1234567 lstat ${n0} size
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expect 0 truncate ${n0} 567
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expect 567 lstat ${n0} size
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expect 0 unlink ${n0}
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dd if=/dev/random of=${n0} bs=12345 count=1 >/dev/null 2>&1
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expect 0 truncate ${n0} 23456
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expect 23456 lstat ${n0} size
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expect 0 truncate ${n0} 1
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expect 1 lstat ${n0} size
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expect 0 unlink ${n0}
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# successful truncate(2) updates ctime.
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expect 0 create ${n0} 0644
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ctime1=`${fstest} stat ${n0} ctime`
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sleep 1
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expect 0 truncate ${n0} 123
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ctime2=`${fstest} stat ${n0} ctime`
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test_check $ctime1 -lt $ctime2
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expect 0 unlink ${n0}
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# unsuccessful truncate(2) does not update ctime.
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expect 0 create ${n0} 0644
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ctime1=`${fstest} stat ${n0} ctime`
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sleep 1
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expect EACCES -u 65534 truncate ${n0} 123
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ctime2=`${fstest} stat ${n0} ctime`
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test_check $ctime1 -eq $ctime2
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expect 0 unlink ${n0}
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cd ${cdir}
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expect 0 rmdir ${n1}
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