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/* $Id: nthlp.h 3337 2020-04-22 17:56:36Z bird $ */
/** @file
* MSC + NT helper functions.
*/
/*
* Copyright (c) 2005-2013 knut st. osmundsen <bird-kBuild-spamx@anduin.net>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Alternatively, the content of this file may be used under the terms of the
* GPL version 2 or later, or LGPL version 2.1 or later.
*/
#ifndef ___nt_nthlp_h
#define ___nt_nthlp_h
#include "ntstuff.h"
#include "nttypes.h"
/** Lazy resolving of the NTDLL imports. */
#define birdResolveImports() do { if (g_fResolvedNtImports) {} else birdResolveImportsWorker(); } while (0)
void birdResolveImportsWorker(void);
extern int g_fResolvedNtImports;
void *birdTmpAlloc(size_t cb);
void birdTmpFree(void *pv);
void *birdMemAlloc(size_t cb);
void *birdMemAllocZ(size_t cb);
void birdMemFree(void *pv);
int birdSetErrnoFromNt(MY_NTSTATUS rcNt);
int birdSetErrnoFromWin32(DWORD dwErr);
int birdSetErrnoToNoMem(void);
int birdSetErrnoToInvalidArg(void);
int birdSetErrnoToBadFileNo(void);
HANDLE birdOpenFile(const char *pszPath, ACCESS_MASK fDesiredAccess, ULONG fFileAttribs,
ULONG fShareAccess, ULONG fCreateDisposition, ULONG fCreateOptions, ULONG fObjAttribs);
HANDLE birdOpenFileW(const wchar_t *pwszPath, ACCESS_MASK fDesiredAccess, ULONG fFileAttribs,
ULONG fShareAccess, ULONG fCreateDisposition, ULONG fCreateOptions, ULONG fObjAttribs);
HANDLE birdOpenFileEx(HANDLE hRoot, const char *pszPath, ACCESS_MASK fDesiredAccess, ULONG fFileAttribs,
ULONG fShareAccess, ULONG fCreateDisposition, ULONG fCreateOptions, ULONG fObjAttribs);
HANDLE birdOpenFileExW(HANDLE hRoot, const wchar_t *pwszPath, ACCESS_MASK fDesiredAccess, ULONG fFileAttribs,
ULONG fShareAccess, ULONG fCreateDisposition, ULONG fCreateOptions, ULONG fObjAttribs);
HANDLE birdOpenParentDir(HANDLE hRoot, const char *pszPath, ACCESS_MASK fDesiredAccess, ULONG fFileAttribs,
ULONG fShareAccess, ULONG fCreateDisposition, ULONG fCreateOptions, ULONG fObjAttribs,
MY_UNICODE_STRING *pNameUniStr);
HANDLE birdOpenParentDirW(HANDLE hRoot, const wchar_t *pwszPath, ACCESS_MASK fDesiredAccess, ULONG fFileAttribs,
ULONG fShareAccess, ULONG fCreateDisposition, ULONG fCreateOptions, ULONG fObjAttribs,
MY_UNICODE_STRING *pNameUniStr);
MY_NTSTATUS birdOpenFileUniStr(HANDLE hRoot, MY_UNICODE_STRING *pNtPath, ACCESS_MASK fDesiredAccess, ULONG fFileAttribs,
ULONG fShareAccess, ULONG fCreateDisposition, ULONG fCreateOptions, ULONG fObjAttribs,
HANDLE *phFile);
HANDLE birdOpenCurrentDirectory(void);
void birdCloseFile(HANDLE hFile);
int birdIsPathDirSpec(const char *pszPath);
int birdDosToNtPath(const char *pszPath, MY_UNICODE_STRING *pNtPath);
int birdDosToNtPathW(const wchar_t *pwszPath, MY_UNICODE_STRING *pNtPath);
int birdDosToRelativeNtPath(const char *pszPath, MY_UNICODE_STRING *pNtPath);
int birdDosToRelativeNtPathW(const wchar_t *pszPath, MY_UNICODE_STRING *pNtPath);
void birdFreeNtPath(MY_UNICODE_STRING *pNtPath);
static __inline void birdNtTimeToTimeSpec(__int64 iNtTime, BirdTimeSpec_T *pTimeSpec)
{
iNtTime -= BIRD_NT_EPOCH_OFFSET_UNIX_100NS;
pTimeSpec->tv_sec = iNtTime / 10000000;
pTimeSpec->tv_nsec = (iNtTime % 10000000) * 100;
}
static __inline __int64 birdNtTimeFromTimeSpec(BirdTimeSpec_T const *pTimeSpec)
{
__int64 iNtTime = pTimeSpec->tv_sec * 10000000;
iNtTime += pTimeSpec->tv_nsec / 100;
iNtTime += BIRD_NT_EPOCH_OFFSET_UNIX_100NS;
return iNtTime;
}
static __inline void birdNtTimeToTimeVal(__int64 iNtTime, BirdTimeVal_T *pTimeVal)
{
iNtTime -= BIRD_NT_EPOCH_OFFSET_UNIX_100NS;
pTimeVal->tv_sec = iNtTime / 10000000;
pTimeVal->tv_usec = (iNtTime % 10000000) / 10;
}
static __inline __int64 birdNtTimeFromTimeVal(BirdTimeVal_T const *pTimeVal)
{
__int64 iNtTime = pTimeVal->tv_sec * 10000000;
iNtTime += pTimeVal->tv_usec * 10;
iNtTime += BIRD_NT_EPOCH_OFFSET_UNIX_100NS;
return iNtTime;
}
#endif
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