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- Check for a valid buffer on a call to IOCTL_DISK_CHECK_VERIFY.

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svn path=/trunk/; revision=10001
This commit is contained in:
Hartmut Birr 2004-07-05 21:44:27 +00:00
parent 405e3b3822
commit 1b16d86ba8
1 changed files with 19 additions and 3 deletions
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22
reactos/drivers/storage/floppy/ioctl.c
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@ -210,9 +210,25 @@ VOID NTAPI DeviceIoctlPassive(PDRIVE_INFO DriveInfo,
case IOCTL_DISK_CHECK_VERIFY: case IOCTL_DISK_CHECK_VERIFY:
KdPrint(("floppy: IOCTL_DISK_CHECK_VERIFY called\n")); KdPrint(("floppy: IOCTL_DISK_CHECK_VERIFY called\n"));
*((PULONG)OutputBuffer) = DriveInfo->DiskChangeCount; if (OutputLength != 0)
Irp->IoStatus.Status = STATUS_SUCCESS; {
Irp->IoStatus.Information = sizeof(ULONG); if (OutputLength < sizeof(ULONG))
{
Irp->IoStatus.Status = STATUS_BUFFER_TOO_SMALL;
Irp->IoStatus.Information = 0;
}
else
{
*((PULONG)OutputBuffer) = DriveInfo->DiskChangeCount;
Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = sizeof(ULONG);
}
}
else
{
Irp->IoStatus.Status = STATUS_SUCCESS;
Irp->IoStatus.Information = 0;
}
break; break;
case IOCTL_DISK_GET_DRIVE_GEOMETRY: case IOCTL_DISK_GET_DRIVE_GEOMETRY: