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}
zBuf[j] = chSep; /* Undo working buffer truncation. */
i = j;
}
fossil_free(zBuf);
return zRes;
}
#endif /* _WIN32 -- This code is for win32 only */
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}
zBuf[j] = chSep; /* Undo working buffer truncation. */
i = j;
}
fossil_free(zBuf);
return zRes;
}
/* Return the unique identifier (UID) for a file, made up of the file identifier
** (equal to "inode" for Unix-style file systems) plus the volume serial number.
** Call the GetFileInformationByHandleEx() function on Windows Vista, and resort
** to the GetFileInformationByHandle() function on Windows XP. The result string
** is allocated by mprintf(), or NULL on failure.
*/
char *win32_file_id(
const char *zFileName
){
static FARPROC fnGetFileInformationByHandleEx;
static int loaded_fnGetFileInformationByHandleEx;
wchar_t *wzFileName = fossil_utf8_to_path(zFileName,0);
HANDLE hFile;
char *zFileId = 0;
hFile = CreateFileW(
wzFileName,
0,
FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE,
NULL,
OPEN_EXISTING,
FILE_FLAG_BACKUP_SEMANTICS,
NULL);
if( hFile!=INVALID_HANDLE_VALUE ){
BY_HANDLE_FILE_INFORMATION fi;
struct { /* FILE_ID_INFO from <winbase.h> */
u64 VolumeSerialNumber;
unsigned char FileId[16];
} fi2;
if( !loaded_fnGetFileInformationByHandleEx ){
fnGetFileInformationByHandleEx = GetProcAddress(
GetModuleHandleA("kernel32"),"GetFileInformationByHandleEx");
loaded_fnGetFileInformationByHandleEx = 1;
}
if( fnGetFileInformationByHandleEx ){
if( fnGetFileInformationByHandleEx(
hFile,/*FileIdInfo*/0x12,&fi2,sizeof(fi2)) ){
zFileId = mprintf(
"%016llx/"
"%02x%02x%02x%02x%02x%02x%02x%02x"
"%02x%02x%02x%02x%02x%02x%02x%02x",
fi2.VolumeSerialNumber,
fi2.FileId[15], fi2.FileId[14],
fi2.FileId[13], fi2.FileId[12],
fi2.FileId[11], fi2.FileId[10],
fi2.FileId[9], fi2.FileId[8],
fi2.FileId[7], fi2.FileId[6],
fi2.FileId[5], fi2.FileId[4],
fi2.FileId[3], fi2.FileId[2],
fi2.FileId[1], fi2.FileId[0]);
}
}
if( zFileId==0 ){
if( GetFileInformationByHandle(hFile,&fi) ){
ULARGE_INTEGER FileId = {
/*.LowPart = */ fi.nFileIndexLow,
/*.HighPart = */ fi.nFileIndexHigh
};
zFileId = mprintf(
"%08x/%016llx",
fi.dwVolumeSerialNumber,(u64)FileId.QuadPart);
}
}
CloseHandle(hFile);
}
fossil_path_free(wzFileName);
return zFileId;
}
#endif /* _WIN32 -- This code is for win32 only */
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