213 lines
5.1 KiB
C++
213 lines
5.1 KiB
C++
//+-----------------------------------------------------------------------
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//
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// File: open.cxx
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//
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// Synopsis: Helper functions for opening all kinds of FILE_STORAGE_TYPEs.
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//
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// History: 06-May-95 DaveStr created
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//
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// Notes:
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//
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//------------------------------------------------------------------------
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extern "C"
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{
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#include <nt.h>
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#include <ntrtl.h>
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#include <nturtl.h>
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}
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#include <windows.h>
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#include <stgint.h>
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#include <stgprop.h>
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#define _CAIROSTG_
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#include <olecairo.h>
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extern BOOL g_fOFS;
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HRESULT _Open(
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WCHAR *path,
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FILE_STORAGE_TYPE type,
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BOOL fCreate,
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HANDLE *ph)
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{
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NTSTATUS status;
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UNICODE_STRING str;
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IO_STATUS_BLOCK iosb;
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OBJECT_ATTRIBUTES oa;
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HRESULT hr = S_OK;
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if ( !RtlDosPathNameToNtPathName_U(path,&str,NULL,NULL) )
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{
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hr = HRESULT_FROM_NT(STATUS_OBJECT_PATH_INVALID);
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}
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else
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{
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InitializeObjectAttributes(
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&oa,
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&str,
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OBJ_CASE_INSENSITIVE,
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NULL,
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(PSECURITY_DESCRIPTOR) NULL);
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status = NtCreateFile(ph,
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FILE_GENERIC_READ |
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FILE_GENERIC_WRITE |
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WRITE_OWNER |
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WRITE_DAC |
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SYNCHRONIZE |
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DELETE,
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&oa,
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&iosb,
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NULL,
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0,
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FILE_SHARE_READ,
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( fCreate ) ? FILE_CREATE : 0,
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FILE_SYNCHRONOUS_IO_NONALERT |
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(g_fOFS ? (FILE_STORAGE_TYPE_SPECIFIED |
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(type << FILE_STORAGE_TYPE_SHIFT)) : 0),
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NULL,
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0);
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if ( !NT_SUCCESS(status) )
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{
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hr = HRESULT_FROM_NT(status);
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}
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RtlFreeUnicodeString(&str);
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}
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return(hr);
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}
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static DWORD grfmode = (STGM_READWRITE | STGM_SHARE_EXCLUSIVE);
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HRESULT OpenDir(
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WCHAR *path,
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BOOL fCreate,
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IStorage **ppistg)
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{
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if ( fCreate )
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{
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return(StgCreateStorage(path,
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grfmode,
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STGFMT_DIRECTORY,
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NULL,
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ppistg));
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}
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else
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{
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return(StgOpenStorage(path,
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NULL,
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grfmode,
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NULL,
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0,
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ppistg));
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}
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}
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HRESULT OpenFile(
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WCHAR *path,
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BOOL fCreate,
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IStorage **ppistg)
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{
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if ( fCreate )
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{
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return(StgCreateStorage(path,
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grfmode,
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STGFMT_FILE,
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NULL,
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ppistg));
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}
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else
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{
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return(StgOpenStorage(path,
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NULL,
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grfmode,
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NULL,
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0,
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ppistg));
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}
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}
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HRESULT OpenJP(
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WCHAR *path,
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BOOL fCreate,
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IStorage **ppistg)
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{
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HRESULT hr;
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HANDLE h;
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hr = _Open(path, StorageTypeJunctionPoint, fCreate, &h);
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if ( SUCCEEDED(hr) )
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{
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if ( fCreate )
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{
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hr = StgCreateStorageOnHandle(h,
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grfmode,
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STGFMT_DIRECTORY,
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ppistg);
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}
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else
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{
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hr = StgOpenStorageOnHandle(h,
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grfmode,
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ppistg);
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}
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NtClose(h);
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}
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return(hr);
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}
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HRESULT OpenSC(
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WCHAR *path,
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BOOL fCreate,
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IStorage **ppistg)
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{
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if ( fCreate )
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{
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return(StgCreateStorage(path,
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grfmode,
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STGFMT_CATALOG,
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NULL,
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ppistg));
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}
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else
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{
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return(StgOpenStorage(path,
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NULL,
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grfmode,
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NULL,
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0,
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ppistg));
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}
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}
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HRESULT OpenStg(
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WCHAR *path,
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BOOL fCreate,
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IStorage **ppistg)
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{
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if ( fCreate )
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{
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return(StgCreateStorage(path,
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grfmode,
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STGFMT_DOCUMENT,
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NULL,
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ppistg));
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}
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else
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{
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return(StgOpenStorage(path,
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NULL,
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grfmode,
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NULL,
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0,
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ppistg));
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}
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}
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