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https://github.com/boykopovar/AnyPS5.git
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ps54allandClaude Sonnet 5.5
1bd0ef8c96
The repo allows one implementation per export. Move libc's rename into libc/src/Rename.cpp, compile that file into both libc and libkernel, and drop the second copy from libkernel's Stdio.cpp. FilesystemError moves to a header so the shared source can use it. The test now checks that the symbol it resolves belongs to libkernel (module handle on Windows, dladdr on Linux) so it fails when the export is removed. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
66 lines
3.1 KiB
C++
66 lines
3.1 KiB
C++
#include "prx/libc/include/general/VabiMacros.hpp"
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#include <chrono>
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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#include <filesystem>
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#include <fstream>
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#include <string>
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#ifdef _WIN32
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#include <windows.h>
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#else
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#include <dlfcn.h>
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#endif
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extern "C" {
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int* APS5_VABI __error_nid_postfix();
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}
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using RenameFunction = int (APS5_VABI*)(const char*, const char*);
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static RenameFunction LoadKernelRename() {
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#ifdef _WIN32
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const HMODULE module = LoadLibraryA(KERNEL_PRX_PATH);
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if (module == nullptr) return nullptr;
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const auto function = reinterpret_cast<RenameFunction>(reinterpret_cast<void*>(GetProcAddress(module, "rename_nid_postfix")));
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HMODULE owner = nullptr;
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if (function == nullptr || !GetModuleHandleExA(GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
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reinterpret_cast<LPCSTR>(function), &owner) || owner != module) return nullptr;
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return function;
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#else
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void* module = dlopen(KERNEL_PRX_PATH, RTLD_NOW | RTLD_LOCAL);
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if (module == nullptr) return nullptr;
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void* function = dlsym(module, "rename_nid_postfix");
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Dl_info owner{};
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void* self = dlsym(module, "sceKernelRename");
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Dl_info expected{};
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if (function == nullptr || self == nullptr || !dladdr(function, &owner) || !dladdr(self, &expected) ||
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owner.dli_fname == nullptr || expected.dli_fname == nullptr || std::strcmp(owner.dli_fname, expected.dli_fname) != 0) return nullptr;
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return reinterpret_cast<RenameFunction>(function);
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#endif
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}
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static void Check(bool value, int line) {
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if (!value) {
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std::fprintf(stderr, "Kernel rename check failed at line %d (guest errno %d)\n", line, *__error_nid_postfix());
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std::abort();
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}
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}
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#define Require(value) Check((value), __LINE__)
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int main() {
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const RenameFunction rename_nid_postfix = LoadKernelRename();
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if (rename_nid_postfix == nullptr) { std::fputs("rename_nid_postfix is not defined by libkernel\n", stderr); return 1; }
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const auto root = std::filesystem::path("anyps5-kernel-rename-test-" +
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std::to_string(std::chrono::steady_clock::now().time_since_epoch().count()));
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Require(std::filesystem::create_directory(root));
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const auto file = root / "file.txt";
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const auto renamed = root / "renamed.txt";
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{ std::ofstream stream(file); stream << "retained"; }
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Require(rename_nid_postfix(file.string().c_str(), renamed.string().c_str()) == 0);
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Require(!std::filesystem::exists(file) && std::filesystem::exists(renamed));
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Require(rename_nid_postfix(renamed.string().c_str(), renamed.string().c_str()) == 0);
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Require(rename_nid_postfix(file.string().c_str(), renamed.string().c_str()) == -1 && *__error_nid_postfix() == 2);
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Require(rename_nid_postfix(nullptr, renamed.string().c_str()) == -1 && *__error_nid_postfix() == 14);
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Require(rename_nid_postfix(renamed.string().c_str(), nullptr) == -1 && *__error_nid_postfix() == 14);
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Require(rename_nid_postfix("", renamed.string().c_str()) == -1 && *__error_nid_postfix() == 2);
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Require(rename_nid_postfix(renamed.string().c_str(), "") == -1 && *__error_nid_postfix() == 2);
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std::filesystem::remove_all(root);
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return 0;
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}
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