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Fix truncation to 0 bytes

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svn path=/trunk/; revision=4040
This commit is contained in:
Gé van Geldorp 2003-01-19 01:06:09 +00:00
parent 10d48ac01e
commit 96fdaea58f
1 changed files with 20 additions and 16 deletions
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12
reactos/drivers/fs/vfat/finfo.c
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@ -1,4 +1,4 @@
/* $Id: finfo.c,v 1.24 2003/01/11 16:00:16 hbirr Exp $
/* $Id: finfo.c,v 1.25 2003/01/19 01:06:09 gvg Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -472,7 +472,7 @@ VfatSetAllocationSizeInformation(PFILE_OBJECT FileObject,
}
}
}
else if (NewSize <= Fcb->RFCB.AllocationSize.u.LowPart - ClusterSize)
else if (NewSize + ClusterSize <= Fcb->RFCB.AllocationSize.u.LowPart)
{
if (NewSize > 0)
{
@ -480,12 +480,16 @@ VfatSetAllocationSizeInformation(PFILE_OBJECT FileObject,
ROUND_DOWN(NewSize - 1, ClusterSize),
&Cluster, FALSE);
}
NCluster = Cluster;
Status = NextCluster (DeviceExt, Fcb, Cluster, &NCluster, FALSE);
WriteCluster(DeviceExt, Cluster, 0xffffffff);
Cluster = NCluster;
while (Cluster != 0xffffffff)
}
else
{
Cluster = FirstCluster;
}
while (0xffffffff != Cluster && 0 != Cluster)
{
NextCluster (DeviceExt, Fcb, Cluster, &NCluster, FALSE);
WriteCluster (DeviceExt, Cluster, 0);