Vincent Povirk : ole32: Always allow changes to read-only transacted storages.
Alexandre Julliard
julliard at winehq.org
Mon Dec 28 09:16:03 CST 2009
Module: wine
Branch: master
Commit: ffc4a49bcb9c98ee76a7b210232db35423e06de1
URL: http://source.winehq.org/git/wine.git/?a=commit;h=ffc4a49bcb9c98ee76a7b210232db35423e06de1
Author: Vincent Povirk <vincent at codeweavers.com>
Date: Fri Dec 4 18:14:51 2009 -0600
ole32: Always allow changes to read-only transacted storages.
The only time the write permissions of transacted storages matter is when
committing.
---
dlls/ole32/storage32.c | 30 +++++++++++++++---------------
dlls/ole32/tests/storage32.c | 2 +-
2 files changed, 16 insertions(+), 16 deletions(-)
diff --git a/dlls/ole32/storage32.c b/dlls/ole32/storage32.c
index 629709a..229fe76 100644
--- a/dlls/ole32/storage32.c
+++ b/dlls/ole32/storage32.c
@@ -864,15 +864,16 @@ static HRESULT WINAPI StorageBaseImpl_CreateStream(
(grfMode & STGM_TRANSACTED))
return STG_E_INVALIDFUNCTION;
- /* Can't create a stream on read-only storage */
- if ( STGM_ACCESS_MODE( This->openFlags ) == STGM_READ )
- return STG_E_ACCESSDENIED;
-
/*
- * Check that we're compatible with the parent's storage mode
- * if not in transacted mode
+ * Don't worry about permissions in transacted mode, as we can always write
+ * changes; we just can't always commit them.
*/
if(!(This->openFlags & STGM_TRANSACTED)) {
+ /* Can't create a stream on read-only storage */
+ if ( STGM_ACCESS_MODE( This->openFlags ) == STGM_READ )
+ return STG_E_ACCESSDENIED;
+
+ /* Can't create a stream with greater access than the parent. */
if ( STGM_ACCESS_MODE( grfMode ) > STGM_ACCESS_MODE( This->openFlags ) )
return STG_E_ACCESSDENIED;
}
@@ -899,11 +900,6 @@ static HRESULT WINAPI StorageBaseImpl_CreateStream(
else
return STG_E_FILEALREADYEXISTS;
}
- else if (STGM_ACCESS_MODE(This->openFlags) == STGM_READ)
- {
- WARN("read-only storage\n");
- return STG_E_ACCESSDENIED;
- }
/*
* memset the empty entry
@@ -1058,7 +1054,8 @@ static HRESULT WINAPI StorageBaseImpl_CreateStorage(
/*
* Check that we're compatible with the parent's storage mode
*/
- if ( STGM_ACCESS_MODE( grfMode ) > STGM_ACCESS_MODE( This->openFlags ) )
+ if ( !(This->openFlags & STGM_TRANSACTED) &&
+ STGM_ACCESS_MODE( grfMode ) > STGM_ACCESS_MODE( This->openFlags ) )
{
WARN("access denied\n");
return STG_E_ACCESSDENIED;
@@ -1075,7 +1072,8 @@ static HRESULT WINAPI StorageBaseImpl_CreateStorage(
* An element with this name already exists
*/
if (STGM_CREATE_MODE(grfMode) == STGM_CREATE &&
- STGM_ACCESS_MODE(This->openFlags) != STGM_READ)
+ ((This->openFlags & STGM_TRANSACTED) ||
+ STGM_ACCESS_MODE(This->openFlags) != STGM_READ))
{
hr = IStorage_DestroyElement(iface, pwcsName);
if (FAILED(hr))
@@ -1087,7 +1085,8 @@ static HRESULT WINAPI StorageBaseImpl_CreateStorage(
return STG_E_FILEALREADYEXISTS;
}
}
- else if (STGM_ACCESS_MODE(This->openFlags) == STGM_READ)
+ else if (!(This->openFlags & STGM_TRANSACTED) &&
+ STGM_ACCESS_MODE(This->openFlags) == STGM_READ)
{
WARN("read-only storage\n");
return STG_E_ACCESSDENIED;
@@ -1831,7 +1830,8 @@ static HRESULT WINAPI StorageBaseImpl_DestroyElement(
if (This->reverted)
return STG_E_REVERTED;
- if ( STGM_ACCESS_MODE( This->openFlags ) == STGM_READ )
+ if ( !(This->openFlags & STGM_TRANSACTED) &&
+ STGM_ACCESS_MODE( This->openFlags ) == STGM_READ )
return STG_E_ACCESSDENIED;
entryToDeleteRef = findElement(
diff --git a/dlls/ole32/tests/storage32.c b/dlls/ole32/tests/storage32.c
index 2011375..e8a7ec9 100644
--- a/dlls/ole32/tests/storage32.c
+++ b/dlls/ole32/tests/storage32.c
@@ -1505,7 +1505,7 @@ static void test_nonroot_transacted(void)
{
/* The storage can be modified. */
r = IStorage_CreateStorage(stg2, stgname, STGM_READWRITE | STGM_SHARE_EXCLUSIVE, 0, 0, &stg3);
- todo_wine ok(r==S_OK, "IStorage->CreateStorage failed, hr=%08x\n", r);
+ ok(r==S_OK, "IStorage->CreateStorage failed, hr=%08x\n", r);
if (r == S_OK)
IStream_Release(stg3);
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