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krnl386: Return a handle to the vxd file itself instead of creating a dummy file. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2020-03-26 16:49:11 +01:00
parent 7b10b02411
commit 61ad36fdc9
1 changed files with 4 additions and 47 deletions
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51
dlls/krnl386.exe16/vxd.c
View File

@ -108,51 +108,6 @@ static WORD VXD_WinVersion(void)
return (version >> 8) | (version << 8);
}
/* create a file handle to represent a VxD, by opening a dummy file in the wineserver directory */
static HANDLE open_vxd_handle( LPCWSTR name )
{
static const WCHAR prefixW[] = {'\\','?','?','\\','u','n','i','x'};
const char *dir = wine_get_server_dir();
int len;
HANDLE ret;
NTSTATUS status;
OBJECT_ATTRIBUTES attr;
UNICODE_STRING nameW;
IO_STATUS_BLOCK io;
len = MultiByteToWideChar( CP_UNIXCP, 0, dir, -1, NULL, 0 );
nameW.Length = sizeof(prefixW) + (len + strlenW( name )) * sizeof(WCHAR);
nameW.MaximumLength = nameW.Length + sizeof(WCHAR);
if (!(nameW.Buffer = HeapAlloc( GetProcessHeap(), 0, nameW.MaximumLength )))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
return 0;
}
memcpy( nameW.Buffer, prefixW, sizeof(prefixW) );
MultiByteToWideChar( CP_UNIXCP, 0, dir, -1, nameW.Buffer + ARRAY_SIZE(prefixW), len );
len += ARRAY_SIZE(prefixW);
nameW.Buffer[len-1] = '/';
strcpyW( nameW.Buffer + len, name );
attr.Length = sizeof(attr);
attr.RootDirectory = 0;
attr.Attributes = 0;
attr.ObjectName = &nameW;
attr.SecurityDescriptor = NULL;
attr.SecurityQualityOfService = NULL;
status = NtCreateFile( &ret, SYNCHRONIZE, &attr, &io, NULL, 0,
FILE_SHARE_READ|FILE_SHARE_WRITE, FILE_OPEN_IF,
FILE_SYNCHRONOUS_IO_ALERT, NULL, 0 );
if (status)
{
ret = 0;
SetLastError( RtlNtStatusToDosError(status) );
}
RtlFreeUnicodeString( &nameW );
return ret;
}
/* retrieve the DeviceIoControl function for a Vxd given a file handle */
DeviceIoProc __wine_vxd_get_proc( HANDLE handle )
{
@ -240,11 +195,13 @@ HANDLE __wine_vxd_open( LPCWSTR filenameW, DWORD access, SECURITY_ATTRIBUTES *sa
}
if (!vxd_modules[i].module) /* new one, register it */
{
WCHAR path[MAX_PATH];
IO_STATUS_BLOCK io;
FILE_INTERNAL_INFORMATION info;
/* get a file handle to the dummy file */
if (!(handle = open_vxd_handle( name )))
GetModuleFileNameW( module, path, MAX_PATH );
handle = CreateFileW( path, 0, FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, 0 );
if (handle == INVALID_HANDLE_VALUE)
{
FreeLibrary( module );
goto done;