REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1891
While the convertion Base64 ascii string is null string (the
string only contain white space would be regard as null string),
there would be no decodeable data. Set *DestinationSize to zero
and return RETURN_SUCCESS. But it is not mention in the comment
of the function. So add this decription.
Cc: Michael D Kinney <michael.d.kin...@intel.com>
Cc: Liming Gao <liming....@intel.com>
Cc: Laszlo Ersek <ler...@redhat.com>
Signed-off-by: Zhichao Gao <zhichao....@intel.com>
---
MdePkg/Library/BaseLib/String.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/MdePkg/Library/BaseLib/String.c b/MdePkg/Library/BaseLib/String.c
index 7ebc2ecddd..8829d2cbbf 100644
--- a/MdePkg/Library/BaseLib/String.c
+++ b/MdePkg/Library/BaseLib/String.c
@@ -1929,7 +1929,8 @@ Base64Encode (
@param DestinationSize Caller is responsible for passing in buffer of at
least DestinationSize.
Set 0 to get the size needed. Set to bytes stored
on return.
- @retval RETURN_SUCCESS When binary buffer is filled in.
+ @retval RETURN_SUCCESS When binary buffer is filled in. Or if
the Base64 ascii string is empty, set
+ *DestinationSize to zero to indicate this
case.
@retval RETURN_INVALID_PARAMETER If Source is NULL or DestinationSize is
NULL.
@retval RETURN_INVALID_PARAMETER If SourceLength or DestinationSize is
bigger than (MAX_ADDRESS -(UINTN)Destination ).
@retval RETURN_INVALID_PARAMETER If there is any invalid character in
input stream.
--
2.21.0.windows.1
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