Function WriteInstalledModManifest

engine/Poseidon/Core/ModInstall.cpp:101–141

            g = f;
            f = e;
            e = d + temp1;
            d = c;
            c = b;
            b = a;
            a = temp1 + temp2;
        }
        _state[0] += a;
        _state[1] += b;
        _state[2] += c;
        _state[3] += d;
        _state[4] += e;
        _state[5] += f;
        _state[6] += g;
        _state[7] += h;
    }

    std::array<uint32_t, 8> _state = {0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
                                      0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19};
    std::array<uint8_t, 64> _block{};
    size_t _blockSize = 0;
    uint64_t _bitCount = 0;
};
} // namespace

bool VerifyModArtifact(const std::string& path, int64_t expectedBytes, const std::string& expectedSha256,
                       std::string* error)
{
    const auto fail = [&](const std::string& message)
    {
        if (error != nullptr)
            *error = message;
        return false;
    };
    FILE* file = std::fopen(path.c_str(), "rb");
    if (file == nullptr)
        return fail("cannot open downloaded package");
    Sha256 hash;
    std::array<uint8_t, 64 * 1024> buffer{};
    int64_t size = 0;
    size_t read = 0;
    while ((read = std::fread(buffer.data(), 1, buffer.size(), file)) > 0)
    {
        hash.Update(buffer.data(), read);
        size += static_cast<int64_t>(read);