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57 lines
1.4 KiB
57 lines
1.4 KiB
#define UNICODE
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#define _UNICODE
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#include <nt.h>
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#include <ntrtl.h>
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#include <nturtl.h>
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#include <windows.h>
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#define SHARE_ALL (FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE)
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int NumberOfLinks(char *FileName)
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{
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FILE_STANDARD_INFORMATION FileInfo;
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WCHAR FileNameBuf[MAX_PATH + 50];
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HANDLE FileHandle;
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NTSTATUS Status;
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IO_STATUS_BLOCK Iosb;
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OBJECT_ATTRIBUTES Obj;
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UNICODE_STRING uPrelimFileName,
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uFileName;
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RtlCreateUnicodeStringFromAsciiz(&uPrelimFileName, FileName);
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lstrcpy(FileNameBuf, L"\\DosDevices\\");
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lstrcat(FileNameBuf, uPrelimFileName.Buffer);
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RtlInitUnicodeString(&uFileName, FileNameBuf);
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InitializeObjectAttributes(&Obj, &uFileName, OBJ_CASE_INSENSITIVE, NULL, NULL);
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Status = NtOpenFile(&FileHandle, SYNCHRONIZE, &Obj, &Iosb,
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SHARE_ALL, FILE_NON_DIRECTORY_FILE | FILE_SYNCHRONOUS_IO_NONALERT);
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if (!NT_SUCCESS(Status)) {
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SetLastError(RtlNtStatusToDosError(Status));
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return 0;
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}
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Status = NtQueryInformationFile(FileHandle, &Iosb, &FileInfo,
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sizeof(FileInfo), FileStandardInformation);
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NtClose(FileHandle);
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if (!NT_SUCCESS(Status)) {
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SetLastError(RtlNtStatusToDosError(Status));
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return 0;
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}
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return FileInfo.NumberOfLinks;
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}
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