What am I doing with my life

ovmf_vars.bt

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struct EFI_FV_BLOCK_MAP_ENTRY {
    uint32 num_blocks;
    uint32 length;
};

struct EFI_FIRMWARE_VOLUME {
    byte zero_vector[16];
    byte file_system_guid[16];
    uint64 fv_length;
    uint32 signature;
    uint32 attributes;
    uint16 header_length;
    uint16 checksum;
    uint16 ext_header_offset;
    byte reserved[1];
    // Terminated by an entry of {0, 0}
    // Too lazy to do the actual parser, I don't use it.
    // I just seek to header_length after reading.
    EFI_FV_BLOCK_MAP_ENTRY block_map[1];
};

struct EFI_TIME {
    uint16 year;
    byte month;
    byte day;
    byte hour;
    byte minute;
    byte second;
    byte pad1;
    uint32 nanosecond;
    int16 timezone;
    byte daylight;
    byte pad2;
};

struct VARIABLE_STORE_HEADER {
    byte signature[16];
    uint32 size;
    byte format;
    byte state;
    uint16 reserved;
    uint32 reserved1;
};

struct VARIABLE_HEADER {
    uint16 startid;
    byte state;
    byte reserved;
    uint32 attributes;
    uint32 name_size;
    uint32 data_size;
    byte vendorguid[16];
};

struct AUTHENTICATED_VARIABLE_HEADER {
    uint16 startid;
    byte state;
    byte reserved;
    uint32 attributes;
    uint64 monotonic_count;
    EFI_TIME timestamp;
    uint32 pub_key_index;
    uint32 name_size;
    uint32 data_size;
    byte vendor_guid[16];
};

EFI_FIRMWARE_VOLUME volume;
FSeek(volume.header_length);
VARIABLE_STORE_HEADER variable_header;

local byte EFI_VARIABLE_GUID[16] =
  { 0x16, 0x36, 0xcf, 0xdd, 0x75, 0x32, 0x64, 0x41, 0x98, 0xb6, 0xfe, 0x85, 0x70, 0x7f, 0xfe, 0x7d };

local byte EFI_AUTHENTICATED_VARIABLE_GUID[16] =
  { 0x78, 0x2c, 0xf3, 0xaa, 0x7b, 0x94, 0x9a, 0x43, 0xa1, 0x80, 0x2e, 0x14, 0x4e, 0xc3, 0x77, 0x92 };


typedef struct {
    if (variable_header.signature == EFI_AUTHENTICATED_VARIABLE_GUID) {
        AUTHENTICATED_VARIABLE_HEADER header;
    } else if (variable_header.signature == EFI_VARIABLE_GUID) {
        VARIABLE_HEADER header;
    } else {
        Printf("Unsupported OVMF_VARS file!\n");
    }
    wchar_t name[header.name_size / 2];
    byte data[header.data_size];
    byte padding[((FTell() + 4 - 1) & (~(4 - 1))) - FTell()];
} VARIABLE <read=printvalue>;

string printvalue(VARIABLE &var) {
    string s;
    SPrintf(s, "%s", var.name);
    return s;
}

#define VAR_ADDED 0x3f

local int curpos;
while (FTell() < variable_header.size) {
    curpos = FTell();
    AUTHENTICATED_VARIABLE_HEADER var<hidden=true>;
    if (var.startid == 0x55AA && var.state == VAR_ADDED) {
        FSeek(curpos);
        VARIABLE vars<fgcolor=0x00FF00>;
    } else if (var.startid == 0x55AA) {
        FSeek(curpos);
        VARIABLE vars<hidden=false,fgcolor=0x0000FF>;
    } else {
        break;
    }
}