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-rw-r--r--MdePkg/Include/Library/BaseLib.h3
-rw-r--r--MdePkg/Library/BaseLib/String.c5
2 files changed, 7 insertions, 1 deletions
diff --git a/MdePkg/Include/Library/BaseLib.h b/MdePkg/Include/Library/BaseLib.h
index c74ea23a74..6998171bd5 100644
--- a/MdePkg/Include/Library/BaseLib.h
+++ b/MdePkg/Include/Library/BaseLib.h
@@ -636,6 +636,9 @@ StrHexToUint64 (
to the ASCII string Destination by copying the lower 8 bits of
each Unicode character. It returns Destination.
+ The caller is responsible to make sure Destination points to a buffer with size
+ equal or greater than ((StrLen (Source) + 1) * sizeof (CHAR8)) in bytes.
+
If any Unicode characters in Source contain non-zero value in
the upper 8 bits, then ASSERT().
diff --git a/MdePkg/Library/BaseLib/String.c b/MdePkg/Library/BaseLib/String.c
index 273291a915..227a0dc846 100644
--- a/MdePkg/Library/BaseLib/String.c
+++ b/MdePkg/Library/BaseLib/String.c
@@ -1,7 +1,7 @@
/** @file
Unicode and ASCII string primatives.
- Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2006 - 2011, 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
@@ -995,6 +995,9 @@ InternalAsciiIsHexaDecimalDigitCharacter (
to the ASCII string Destination by copying the lower 8 bits of
each Unicode character. It returns Destination.
+ The caller is responsible to make sure Destination points to a buffer with size
+ equal or greater than ((StrLen (Source) + 1) * sizeof (CHAR8)) in bytes.
+
If any Unicode characters in Source contain non-zero value in
the upper 8 bits, then ASSERT().