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sys,dll: Overwrite now correctly handles AllocationSize

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This commit is contained in:
Bill Zissimopoulos
2016-12-13 11:52:32 -08:00
parent 6de998ff98
commit bbb51b4971
6 changed files with 20 additions and 4 deletions
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14
tst/memfs/memfs.cpp
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@@ -858,11 +858,16 @@ static NTSTATUS Open(FSP_FILE_SYSTEM *FileSystem,
}
static NTSTATUS Overwrite(FSP_FILE_SYSTEM *FileSystem,
PVOID FileNode0, UINT32 FileAttributes, BOOLEAN ReplaceFileAttributes,
PVOID FileNode0, UINT32 FileAttributes, BOOLEAN ReplaceFileAttributes, UINT64 AllocationSize,
FSP_FSCTL_FILE_INFO *FileInfo)
{
MEMFS *Memfs = (MEMFS *)FileSystem->UserContext;
MEMFS_FILE_NODE *FileNode = (MEMFS_FILE_NODE *)FileNode0;
NTSTATUS Result;
Result = SetFileSize(FileSystem, FileNode, AllocationSize, TRUE, FileInfo);
if (!NT_SUCCESS(Result))
return Result;
if (ReplaceFileAttributes)
FileNode->FileInfo.FileAttributes = FileAttributes | FILE_ATTRIBUTE_ARCHIVE;
@@ -982,6 +987,7 @@ static NTSTATUS Write(FSP_FILE_SYSTEM *FileSystem,
MEMFS_FILE_NODE *FileNode = (MEMFS_FILE_NODE *)FileNode0;
UINT64 EndOffset;
NTSTATUS Result;
if (ConstrainedIo)
{
@@ -997,7 +1003,11 @@ static NTSTATUS Write(FSP_FILE_SYSTEM *FileSystem,
Offset = FileNode->FileInfo.FileSize;
EndOffset = Offset + Length;
if (EndOffset > FileNode->FileInfo.FileSize)
SetFileSize(FileSystem, FileNode, EndOffset, FALSE, FileInfo);
{
Result = SetFileSize(FileSystem, FileNode, EndOffset, FALSE, FileInfo);
if (!NT_SUCCESS(Result))
return Result;
}
}
memcpy((PUINT8)FileNode->FileData + Offset, Buffer, (size_t)(EndOffset - Offset));