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| 1 | +#ifndef Py_INTERNAL_FILEUTILS_WINDOWS_H |
| 2 | +#define Py_INTERNAL_FILEUTILS_WINDOWS_H |
| 3 | +#ifdef __cplusplus |
| 4 | +extern "C" { |
| 5 | +#endif |
| 6 | + |
| 7 | +#ifndef Py_BUILD_CORE |
| 8 | +# error "Py_BUILD_CORE must be defined to include this header" |
| 9 | +#endif |
| 10 | + |
| 11 | +#ifdef MS_WINDOWS |
| 12 | + |
| 13 | +#if !defined(NTDDI_WIN10_NI) || !(NTDDI_VERSION >= NTDDI_WIN10_NI) |
| 14 | +typedef struct _FILE_STAT_BASIC_INFORMATION { |
| 15 | + LARGE_INTEGER FileId; |
| 16 | + LARGE_INTEGER CreationTime; |
| 17 | + LARGE_INTEGER LastAccessTime; |
| 18 | + LARGE_INTEGER LastWriteTime; |
| 19 | + LARGE_INTEGER ChangeTime; |
| 20 | + LARGE_INTEGER AllocationSize; |
| 21 | + LARGE_INTEGER EndOfFile; |
| 22 | + ULONG FileAttributes; |
| 23 | + ULONG ReparseTag; |
| 24 | + ULONG NumberOfLinks; |
| 25 | + ULONG DeviceType; |
| 26 | + ULONG DeviceCharacteristics; |
| 27 | + ULONG Reserved; |
| 28 | + LARGE_INTEGER VolumeSerialNumber; |
| 29 | + FILE_ID_128 FileId128; |
| 30 | +} FILE_STAT_BASIC_INFORMATION; |
| 31 | + |
| 32 | +typedef enum _FILE_INFO_BY_NAME_CLASS { |
| 33 | + FileStatByNameInfo, |
| 34 | + FileStatLxByNameInfo, |
| 35 | + FileCaseSensitiveByNameInfo, |
| 36 | + FileStatBasicByNameInfo, |
| 37 | + MaximumFileInfoByNameClass |
| 38 | +} FILE_INFO_BY_NAME_CLASS; |
| 39 | +#endif |
| 40 | + |
| 41 | +typedef BOOL (WINAPI *PGetFileInformationByName)( |
| 42 | + PCWSTR FileName, |
| 43 | + FILE_INFO_BY_NAME_CLASS FileInformationClass, |
| 44 | + PVOID FileInfoBuffer, |
| 45 | + ULONG FileInfoBufferSize |
| 46 | +); |
| 47 | + |
| 48 | +static inline BOOL _Py_GetFileInformationByName( |
| 49 | + PCWSTR FileName, |
| 50 | + FILE_INFO_BY_NAME_CLASS FileInformationClass, |
| 51 | + PVOID FileInfoBuffer, |
| 52 | + ULONG FileInfoBufferSize |
| 53 | +) { |
| 54 | + static PGetFileInformationByName GetFileInformationByName = NULL; |
| 55 | + static int GetFileInformationByName_init = -1; |
| 56 | + |
| 57 | + if (GetFileInformationByName_init < 0) { |
| 58 | + HMODULE hMod = LoadLibraryW(L"api-ms-win-core-file-l2-1-4"); |
| 59 | + GetFileInformationByName_init = 0; |
| 60 | + if (hMod) { |
| 61 | + GetFileInformationByName = (PGetFileInformationByName)GetProcAddress( |
| 62 | + hMod, "GetFileInformationByName"); |
| 63 | + if (GetFileInformationByName) { |
| 64 | + GetFileInformationByName_init = 1; |
| 65 | + } else { |
| 66 | + FreeLibrary(hMod); |
| 67 | + } |
| 68 | + } |
| 69 | + } |
| 70 | + |
| 71 | + if (GetFileInformationByName_init <= 0) { |
| 72 | + SetLastError(ERROR_NOT_SUPPORTED); |
| 73 | + return FALSE; |
| 74 | + } |
| 75 | + return GetFileInformationByName(FileName, FileInformationClass, FileInfoBuffer, FileInfoBufferSize); |
| 76 | +} |
| 77 | + |
| 78 | +static inline BOOL _Py_GetFileInformationByName_ErrorIsTrustworthy(int error) |
| 79 | +{ |
| 80 | + switch(error) { |
| 81 | + case ERROR_FILE_NOT_FOUND: |
| 82 | + case ERROR_PATH_NOT_FOUND: |
| 83 | + case ERROR_NOT_READY: |
| 84 | + case ERROR_BAD_NET_NAME: |
| 85 | + case ERROR_BAD_NETPATH: |
| 86 | + case ERROR_BAD_PATHNAME: |
| 87 | + case ERROR_INVALID_NAME: |
| 88 | + case ERROR_FILENAME_EXCED_RANGE: |
| 89 | + return TRUE; |
| 90 | + case ERROR_NOT_SUPPORTED: |
| 91 | + return FALSE; |
| 92 | + } |
| 93 | + return FALSE; |
| 94 | +} |
| 95 | + |
| 96 | +#endif |
| 97 | + |
| 98 | +#endif |
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