207 lines
4.4 KiB
C
207 lines
4.4 KiB
C
|
/*++
|
||
|
|
||
|
Copyright (c) 1989-2000 Microsoft Corporation
|
||
|
|
||
|
Module Name:
|
||
|
|
||
|
guid.c
|
||
|
|
||
|
Abstract:
|
||
|
|
||
|
GUID-related utilities that run on win9x and nt4 as
|
||
|
well as win2k and whistler
|
||
|
|
||
|
Author:
|
||
|
|
||
|
vadimb created sometime in 2001
|
||
|
|
||
|
Revision History:
|
||
|
|
||
|
|
||
|
--*/
|
||
|
|
||
|
#include "sdbp.h"
|
||
|
#include "initguid.h"
|
||
|
|
||
|
#if defined(KERNEL_MODE) && defined(ALLOC_DATA_PRAGMA)
|
||
|
#pragma data_seg()
|
||
|
#endif // KERNEL_MODE && ALLOC_DATA_PRAGMA
|
||
|
|
||
|
const TCHAR g_szGuidFormat[] = TEXT("{%08lx-%04hx-%04hx-%02hx%02hx-%02hx%02hx%02hx%02hx%02hx%02hx}");
|
||
|
|
||
|
#if defined(KERNEL_MODE) && defined(ALLOC_PRAGMA)
|
||
|
#pragma alloc_text(PAGE, SdbpGUIDToUnicodeString)
|
||
|
#pragma alloc_text(PAGE, SdbpFreeUnicodeString)
|
||
|
#pragma alloc_text(PAGE, SdbGUIDToString)
|
||
|
#endif // KERNEL_MODE && ALLOC_PRAGMA
|
||
|
|
||
|
//
|
||
|
// GUID string buffer size (in chars) not including the term null char
|
||
|
//
|
||
|
#define GUID_STRING_SIZE 38
|
||
|
|
||
|
DEFINE_GUID(STATIC_NULL_GUID, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, \
|
||
|
0x0, 0x0, 0x0, 0x0);
|
||
|
|
||
|
|
||
|
BOOL
|
||
|
SDBAPI
|
||
|
SdbIsNullGUID(
|
||
|
IN GUID* pGuid
|
||
|
)
|
||
|
{
|
||
|
return pGuid == NULL ||
|
||
|
RtlEqualMemory(pGuid, &STATIC_NULL_GUID, sizeof(*pGuid));
|
||
|
}
|
||
|
|
||
|
|
||
|
#if defined(NT_MODE) || defined(KERNEL_MODE)
|
||
|
|
||
|
BOOL
|
||
|
SDBAPI
|
||
|
SdbGUIDFromString(
|
||
|
IN LPCWSTR lpszGuid,
|
||
|
OUT GUID* pGuid
|
||
|
)
|
||
|
/*++
|
||
|
Return: TRUE on success, FALSE otherwise.
|
||
|
|
||
|
Desc: Converts a string to a GUID.
|
||
|
--*/
|
||
|
{
|
||
|
UNICODE_STRING ustrGuid;
|
||
|
NTSTATUS status;
|
||
|
|
||
|
RtlInitUnicodeString(&ustrGuid, lpszGuid);
|
||
|
|
||
|
status = RtlGUIDFromString(&ustrGuid, pGuid);
|
||
|
|
||
|
return NT_SUCCESS(status);
|
||
|
}
|
||
|
|
||
|
#else // we do the same thing for both WIN32A and WIN32U
|
||
|
|
||
|
BOOL
|
||
|
SdbGUIDFromString(
|
||
|
LPCTSTR lpszGuid,
|
||
|
GUID* pGuid)
|
||
|
{
|
||
|
int nFields;
|
||
|
DWORD rgData4[8];
|
||
|
DWORD dwData2;
|
||
|
DWORD dwData3;
|
||
|
INT i;
|
||
|
|
||
|
nFields = _stscanf(lpszGuid, g_szGuidFormat,
|
||
|
&pGuid->Data1, // type : long
|
||
|
&dwData2, // type : short
|
||
|
&dwData3, // type : short
|
||
|
&rgData4[0],// type : short all the way to the bottom
|
||
|
&rgData4[1],
|
||
|
&rgData4[2],
|
||
|
&rgData4[3],
|
||
|
&rgData4[4],
|
||
|
&rgData4[5],
|
||
|
&rgData4[6],
|
||
|
&rgData4[7]);
|
||
|
|
||
|
if (nFields == 11) {
|
||
|
pGuid->Data2 = (USHORT)dwData2;
|
||
|
pGuid->Data3 = (USHORT)dwData3;
|
||
|
for (i = 0; i < 8; ++i) {
|
||
|
pGuid->Data4[i] = (BYTE)rgData4[i];
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return (nFields == 11);
|
||
|
}
|
||
|
|
||
|
#endif
|
||
|
|
||
|
#ifndef WIN32A_MODE
|
||
|
//
|
||
|
// Private Functions used internally
|
||
|
//
|
||
|
|
||
|
NTSTATUS
|
||
|
SdbpGUIDToUnicodeString(
|
||
|
IN GUID* pGuid,
|
||
|
OUT PUNICODE_STRING pUnicodeString
|
||
|
)
|
||
|
/*++
|
||
|
Return: BUGBUG: ?
|
||
|
|
||
|
Desc: BUGBUG: ?
|
||
|
--*/
|
||
|
{
|
||
|
pUnicodeString->Length = GUID_STRING_SIZE * sizeof(WCHAR);
|
||
|
pUnicodeString->MaximumLength = pUnicodeString->Length + sizeof(UNICODE_NULL);
|
||
|
pUnicodeString->Buffer = SdbAlloc(pUnicodeString->MaximumLength);
|
||
|
|
||
|
if (pUnicodeString->Buffer == NULL) {
|
||
|
DBGPRINT((sdlError,
|
||
|
"SdbpGUIDToUnicodeString",
|
||
|
"Failed to allocate %ld bytes for GUID\n",
|
||
|
(DWORD)pUnicodeString->MaximumLength));
|
||
|
return STATUS_NO_MEMORY;
|
||
|
}
|
||
|
|
||
|
swprintf(pUnicodeString->Buffer, g_szGuidFormat,
|
||
|
pGuid->Data1,
|
||
|
pGuid->Data2,
|
||
|
pGuid->Data3,
|
||
|
pGuid->Data4[0],
|
||
|
pGuid->Data4[1],
|
||
|
pGuid->Data4[2],
|
||
|
pGuid->Data4[3],
|
||
|
pGuid->Data4[4],
|
||
|
pGuid->Data4[5],
|
||
|
pGuid->Data4[6],
|
||
|
pGuid->Data4[7]);
|
||
|
|
||
|
return STATUS_SUCCESS;
|
||
|
}
|
||
|
|
||
|
VOID
|
||
|
SdbpFreeUnicodeString(
|
||
|
PUNICODE_STRING pUnicodeString
|
||
|
)
|
||
|
/*++
|
||
|
Return: BUGBUG: ?
|
||
|
|
||
|
Desc: BUGBUG: ?
|
||
|
--*/
|
||
|
{
|
||
|
if (pUnicodeString->Buffer != NULL) {
|
||
|
SdbFree(pUnicodeString->Buffer);
|
||
|
RtlZeroMemory(pUnicodeString, sizeof(*pUnicodeString));
|
||
|
}
|
||
|
}
|
||
|
|
||
|
#endif // WIN32A_MODE
|
||
|
|
||
|
BOOL
|
||
|
SDBAPI
|
||
|
SdbGUIDToString(
|
||
|
IN GUID* pGuid,
|
||
|
OUT LPTSTR pszGuid
|
||
|
)
|
||
|
{
|
||
|
_stprintf(pszGuid, g_szGuidFormat,
|
||
|
pGuid->Data1,
|
||
|
pGuid->Data2,
|
||
|
pGuid->Data3,
|
||
|
pGuid->Data4[0],
|
||
|
pGuid->Data4[1],
|
||
|
pGuid->Data4[2],
|
||
|
pGuid->Data4[3],
|
||
|
pGuid->Data4[4],
|
||
|
pGuid->Data4[5],
|
||
|
pGuid->Data4[6],
|
||
|
pGuid->Data4[7]);
|
||
|
|
||
|
return TRUE;
|
||
|
}
|
||
|
|
||
|
|