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https://github.com/boykopovar/AnyPS5.git
synced 2026-11-02 12:56:05 +00:00
BunnyFlandClaude Opus 5.5
933d370153
Follows firmware 13.42's libSceVrHand.sprx, read from its disassembly and run natively on x86-64: a null pointer, a size word other than 0x20 or a nonzero byte in parameter offsets 4 to 31 returns 0x8a870006 without writing; otherwise the output receives 0x3c00000 and 0x10000 followed by 20 zero bytes. Co-Authored-By: Claude Opus 5.5 <[email protected]>
64 lines
1.9 KiB
C++
64 lines
1.9 KiB
C++
#include "prx/libSceVrHand/include/Api.hpp"
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#include <array>
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#include <cstdint>
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#include <cstdlib>
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#include <cstring>
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namespace {
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void Require(bool value) { if (!value) std::abort(); }
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constexpr int kErrInvalidArg = static_cast<int>(0x8a870006);
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constexpr std::uint8_t kFill = 0xaa;
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std::array<std::uint8_t, 0x40> ValidParam() {
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std::array<std::uint8_t, 0x40> param{};
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param[0] = 0x20;
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return param;
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}
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bool Untouched(const std::array<std::uint8_t, 0x28>& out) {
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for (const auto value : out) if (value != kFill) return false;
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return true;
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}
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int Query(const std::array<std::uint8_t, 0x40>& param, std::array<std::uint8_t, 0x28>& out) {
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out.fill(kFill);
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return sceVrHandQueryMemory(param.data(), out.data());
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}
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}
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int main() {
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std::array<std::uint8_t, 0x28> out{};
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auto param = ValidParam();
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out.fill(kFill);
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Require(sceVrHandQueryMemory(nullptr, out.data()) == kErrInvalidArg && Untouched(out));
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Require(sceVrHandQueryMemory(param.data(), nullptr) == kErrInvalidArg);
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for (const std::uint32_t size : {0u, 0x1fu, 0x21u, 0x40u, 0x120u, 0x10020u, 0x1000020u}) {
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param = ValidParam();
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std::memcpy(param.data(), &size, sizeof(size));
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Require(Query(param, out) == kErrInvalidArg && Untouched(out));
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}
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for (std::size_t index = 4; index < 0x20; ++index) {
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param = ValidParam();
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param[index] = 1;
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Require(Query(param, out) == kErrInvalidArg && Untouched(out));
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}
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param = ValidParam();
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std::memset(param.data() + 0x20, 0xcc, 0x20);
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Require(Query(param, out) == 0);
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std::uint32_t at0 = 0;
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std::uint32_t at4 = 0;
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std::memcpy(&at0, out.data(), sizeof(at0));
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std::memcpy(&at4, out.data() + 4, sizeof(at4));
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Require(at0 == 0x3c00000);
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Require(at4 == 0x10000);
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for (std::size_t index = 8; index < 0x1c; ++index) Require(out[index] == 0);
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for (std::size_t index = 0x1c; index < out.size(); ++index) Require(out[index] == kFill);
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return 0;
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}
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