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Diffstat (limited to 'src/lib/nt/nthlp.h')
| -rw-r--r-- | src/lib/nt/nthlp.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/lib/nt/nthlp.h b/src/lib/nt/nthlp.h new file mode 100644 index 0000000..a24792c --- /dev/null +++ b/src/lib/nt/nthlp.h @@ -0,0 +1,119 @@ +/* $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 + |