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Fix a potential buffer over flow issue. 

Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>

(based on FatPkg commit 2355ea2cf327c047d7d448a1ae4e606707c82ded)

[jordan.l.justen@intel.com: Use script to relicense to 2-clause BSD]
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Acked-by: Mark Doran <mark.doran@intel.com>
Acked-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Ruiyu Ni 2014-08-13 07:00:57 +00:00 committed by Jordan Justen
parent 944ac8ab53
commit ee3e5604cf
1 changed files with 3 additions and 2 deletions
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5
FatPkg/EnhancedFatDxe/Hash.c
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@ -1,6 +1,6 @@
/*++
Copyright (c) 2005 - 2007, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2005 - 2014, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials are licensed and made available
under the terms and conditions of the BSD License which accompanies this
distribution. The full text of the license may be found at
@ -47,7 +47,8 @@ Returns:
{
UINT32 HashValue;
CHAR16 UpCasedLongFileName[EFI_PATH_STRING_LENGTH];
StrCpy (UpCasedLongFileName, LongNameString);
StrnCpy (UpCasedLongFileName, LongNameString, EFI_PATH_STRING_LENGTH - 1);
UpCasedLongFileName[EFI_PATH_STRING_LENGTH - 1] = L'\0';
FatStrUpr (UpCasedLongFileName);
gBS->CalculateCrc32 (UpCasedLongFileName, StrSize (UpCasedLongFileName), &HashValue);
return (HashValue & HASH_TABLE_MASK);