reactos/wine
1
0
Fork 0
mirror of https://github.com/reactos/wine.git synced 2024-11-29 14:40:56 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

ole32: Update storage header saving code based on the latest MS spec.

Browse Source 
These fields are needed for the MS storage implementation to load
files that were created by Wine with a block size of 4096.
This commit is contained in:
Vincent Povirk 2010-07-17 09:46:43 -05:00 committed by Alexandre Julliard
parent cb07a59a80
commit 7f3c92b2a0
2 changed files with 49 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
dlls/ole32/storage32.c
View File

@ -1306,6 +1306,8 @@ static HRESULT StorageImpl_CreateDirEntry(
entryIndex,
emptyData);
}
StorageImpl_SaveFileHeader(storage);
}
UpdateRawDirEntry(currentData, newData);
@ -3465,6 +3467,7 @@ static void StorageImpl_SaveFileHeader(
HRESULT hr;
ULARGE_INTEGER offset;
DWORD bytes_read, bytes_written;
DWORD major_version, dirsectorcount;
/*
* Get a pointer to the big block of data containing the header.
@ -3475,6 +3478,16 @@ static void StorageImpl_SaveFileHeader(
if (SUCCEEDED(hr) && bytes_read != HEADER_SIZE)
hr = STG_E_FILENOTFOUND;
if (This->bigBlockSizeBits == 0x9)
major_version = 3;
else if (This->bigBlockSizeBits == 0xc)
major_version = 4;
else
{
ERR("invalid big block shift 0x%x\n", This->bigBlockSizeBits);
major_version = 4;
}
/*
* If the block read failed, the file is probably new.
*/
@ -3489,18 +3502,26 @@ static void StorageImpl_SaveFileHeader(
* Initialize the magic number.
*/
memcpy(headerBigBlock, STORAGE_magic, sizeof(STORAGE_magic));
/*
* And a bunch of things we don't know what they mean
*/
StorageUtl_WriteWord(headerBigBlock, 0x18, 0x3b);
StorageUtl_WriteWord(headerBigBlock, 0x1a, 0x3);
StorageUtl_WriteWord(headerBigBlock, 0x1c, (WORD)-2);
}
/*
* Write the information to the header.
*/
StorageUtl_WriteWord(
headerBigBlock,
OFFSET_MINORVERSION,
0x3e);
StorageUtl_WriteWord(
headerBigBlock,
OFFSET_MAJORVERSION,
major_version);
StorageUtl_WriteWord(
headerBigBlock,
OFFSET_BYTEORDERMARKER,
(WORD)-2);
StorageUtl_WriteWord(
headerBigBlock,
OFFSET_BIGBLOCKSIZEBITS,
@ -3511,6 +3532,23 @@ static void StorageImpl_SaveFileHeader(
OFFSET_SMALLBLOCKSIZEBITS,
This->smallBlockSizeBits);
if (major_version >= 4)
{
if (This->rootBlockChain)
dirsectorcount = BlockChainStream_GetCount(This->rootBlockChain);
else
/* This file is being created, and it will start out with one block. */
dirsectorcount = 1;
}
else
/* This field must be 0 in versions older than 4 */
dirsectorcount = 0;
StorageUtl_WriteDWord(
headerBigBlock,
OFFSET_DIRSECTORCOUNT,
dirsectorcount);
StorageUtl_WriteDWord(
headerBigBlock,
OFFSET_BBDEPOTCOUNT,

4
dlls/ole32/storage32.h
View File

@ -42,8 +42,12 @@
/*
* Definitions for the file format offsets.
*/
static const ULONG OFFSET_MINORVERSION = 0x00000018;
static const ULONG OFFSET_MAJORVERSION = 0x0000001a;
static const ULONG OFFSET_BYTEORDERMARKER = 0x0000001c;
static const ULONG OFFSET_BIGBLOCKSIZEBITS = 0x0000001e;
static const ULONG OFFSET_SMALLBLOCKSIZEBITS = 0x00000020;
static const ULONG OFFSET_DIRSECTORCOUNT = 0x00000028;
static const ULONG OFFSET_BBDEPOTCOUNT = 0x0000002C;
static const ULONG OFFSET_ROOTSTARTBLOCK = 0x00000030;
static const ULONG OFFSET_SMALLBLOCKLIMIT = 0x00000038;