rpcsx/rpcs3/Loader/mself.hpp

#pragma once

#include "util/types.hpp"
#include "util/endian.hpp"

struct mself_record
{
	char name[0x20];
	be_t<u64> off;
	be_t<u64> size;
	u8 reserved[0x10];

	u64 get_pos(u64 file_size) const
	{
		// Fast sanity check
		if (off < file_size && file_size - off >= size) [[likely]]
			return off;

		return 0;
	}
};

struct mself_header
{
	nse_t<u32> magic;      // "MSF\x00"
	be_t<u32> ver;         // 1
	be_t<u64> size;        // File size
	be_t<u32> count;       // Number of records
	be_t<u32> header_size; // ???
	u8 reserved[0x28];

	u32 get_count(u64 file_size) const
	{
		// Fast sanity check
		if (magic != "MSF"_u32 || ver != u32{1} || (file_size - sizeof(mself_header)) / sizeof(mself_record) < count || this->size != file_size) [[unlikely]]
			return 0;

		return count;
	}
};

CHECK_SIZE(mself_header, 0x40);

CHECK_SIZE(mself_record, 0x40);

bool extract_mself(const std::string& file, const std::string& extract_to);