87 lines
1.7 KiB
C
87 lines
1.7 KiB
C
/*++
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Module Name:
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setupnvr.h
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Abstract:
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Access function to r/w environment variables from pseudo-NVRAM file
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Author:
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Mudit Vats (v-muditv) 5-18-99
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Revision History:
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--*/
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#define MAXBOOTVARS 9
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#define MAXBOOTVARSIZE 1024
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#define ERROR_OK 1
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#define ERROR_NOTOK 0
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int ReadNVRAM();
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int WriteNVRAM();
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int GetBootVar( char *szBootVar, unsigned short nLength, char *szBootVal );
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int SetBootVar( char *szBootVar, char *szBootVal );
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NTSYSAPI
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NTSTATUS
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NTAPI
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ZwCreateFile(
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OUT PHANDLE FileHandle,
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IN ACCESS_MASK DesiredAccess,
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IN POBJECT_ATTRIBUTES ObjectAttributes,
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OUT PIO_STATUS_BLOCK IoStatusBlock,
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IN PLARGE_INTEGER AllocationSize OPTIONAL,
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IN ULONG FileAttributes,
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IN ULONG ShareAccess,
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IN ULONG CreateDisposition,
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IN ULONG CreateOptions,
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IN PVOID EaBuffer OPTIONAL,
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IN ULONG EaLength
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);
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NTSYSAPI
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NTSTATUS
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NTAPI
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ZwQueryInformationFile(
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IN HANDLE FileHandle,
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OUT PIO_STATUS_BLOCK IoStatusBlock,
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OUT PVOID FileInformation,
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IN ULONG Length,
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IN FILE_INFORMATION_CLASS FileInformationClass
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);
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NTSYSAPI
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NTSTATUS
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NTAPI
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ZwReadFile(
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IN HANDLE FileHandle,
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IN HANDLE Event OPTIONAL,
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IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
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IN PVOID ApcContext OPTIONAL,
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OUT PIO_STATUS_BLOCK IoStatusBlock,
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OUT PVOID Buffer,
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IN ULONG Length,
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IN PLARGE_INTEGER ByteOffset OPTIONAL,
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IN PULONG Key OPTIONAL
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);
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NTSYSAPI
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NTSTATUS
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NTAPI
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ZwWriteFile(
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IN HANDLE FileHandle,
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IN HANDLE Event OPTIONAL,
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IN PIO_APC_ROUTINE ApcRoutine OPTIONAL,
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IN PVOID ApcContext OPTIONAL,
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OUT PIO_STATUS_BLOCK IoStatusBlock,
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IN PVOID Buffer,
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IN ULONG Length,
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IN PLARGE_INTEGER ByteOffset OPTIONAL,
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IN PULONG Key OPTIONAL
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);
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