Method MakeFile

rpcs3/Crypto/unself.cpp:757–795

Each section gets put into its own file.

// Each section gets put into its own file.
std::vector<fs::file> SCEDecrypter::MakeFile()
{
	std::vector<fs::file> vec;

	// Set initial offset.
	u32 data_buf_offset = 0;

	// Write data.
	for (u32 i = 0; i < meta_hdr.section_count; i++)
	{
		const MetadataSectionHeader& hdr = meta_shdr[i];
		const u8* src = data_buf.get() + data_buf_offset;
		fs::file out_f = fs::make_stream<std::vector<u8>>();

		bool is_valid = true;

		// Decompress if necessary.
		if (hdr.compressed == 2)
		{
			is_valid = unzip(src, hdr.data_size, out_f);
		}
		else
		{
			// Write the data.
			out_f.write(src, hdr.data_size);
		}

		// Advance the data buffer offset by data size.
		data_buf_offset += ::narrow<u32>(hdr.data_size);

		if (out_f.pos() != out_f.size())
			fmt::throw_exception("MakeELF written bytes (%llu) does not equal buffer size (%llu).", out_f.pos(), out_f.size());

		if (is_valid)
			vec.push_back(std::move(out_f));
	}

	return vec;
}

SELFDecrypter::SELFDecrypter(const fs::file& s)
	: self_f(s), key_v()