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2726 vana 1
#include <efi.h>
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#include <efilib.h>
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EFI_STATUS
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efi_main (EFI_HANDLE image, EFI_SYSTEM_TABLE *systab)
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{
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    EFI_STATUS status;
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    CHAR16 name[256], *val, fmt[20];
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    EFI_GUID vendor;
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    UINTN size;
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    InitializeLib(image, systab);
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    name[0] = 0;
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    vendor = NullGuid;
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    Print(L"GUID                                Variable Name        Value\n");
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    Print(L"=================================== ==================== ========\n");
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    StrCpy(fmt, L"%.-35g %.-20s %s\n");
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    while (1) {
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        size = sizeof(name);
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        status = RT->GetNextVariableName(&size, name, &vendor);
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        if (status != EFI_SUCCESS)
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            break;
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        val = LibGetVariable(name, &vendor);
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        Print(fmt, &vendor, name, val);
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        FreePool(val);
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    }
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    return EFI_SUCCESS;
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}