mirror of
https://github.com/boykopovar/AnyPS5.git
synced 2026-10-22 08:33:12 -05:00
milescovielloandClaude Opus 5.5
be17961e32
FreeBSD's fstat looks the descriptor up before it copies the result out, so a bad descriptor still fails with EBADF and an open one fails with EFAULT when sb is null. fstat and sceKernelFstat threw std::invalid_argument instead. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
70 lines
2.3 KiB
C++
70 lines
2.3 KiB
C++
#include "SceTypes.hpp"
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#include "prx/libc/include/General.hpp"
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#include "prx/libkernel/File/include/FileFlags.hpp"
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#include <chrono>
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#include <cstdint>
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#include <cstdio>
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#include <cstdlib>
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#include <filesystem>
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#include <fstream>
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#include <string>
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extern "C" {
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std::int64_t APS5_VABI fstat_nid_disambig1_nid_postfix(int, FileStat*);
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int APS5_VABI sceKernelFstat(int, FileStat*);
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int APS5_VABI sceKernelOpen(const char*, int, std::uint16_t);
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int APS5_VABI close_nid_postfix(int);
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int APS5_VABI socketpair_nid_postfix(int, int, int, int*);
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int* APS5_VABI __error_nid_postfix();
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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, "fstat check failed at line %d\n", line);
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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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static constexpr int GuestEbadf = 9;
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static constexpr int GuestEfault = 14;
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static void RequireFailure(int descriptor, int error) {
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*__error_nid_postfix() = 0;
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Require(fstat_nid_disambig1_nid_postfix(descriptor, nullptr) == -1);
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Require(*__error_nid_postfix() == error);
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Require(sceKernelFstat(descriptor, nullptr) == static_cast<int>(0x80020000u | static_cast<unsigned>(error)));
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}
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int main() {
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const auto root = std::filesystem::temp_directory_path() /
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("anyps5-fstat-fault-" + 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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{
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std::ofstream file(root / "file.txt", std::ios::binary);
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file << "fstat";
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Require(static_cast<bool>(file));
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}
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AddPathAlias_nid_no_patch("/anyps5-fstat-fault-test", root.string().c_str());
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const int file = sceKernelOpen("/anyps5-fstat-fault-test/file.txt", SCE_KERNEL_O_RDONLY, 0);
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Require(file >= 0);
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FileStat status{};
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Require(fstat_nid_disambig1_nid_postfix(file, &status) == 0 && status.st_size == 5);
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RequireFailure(file, GuestEfault);
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int sockets[2];
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Require(socketpair_nid_postfix(1, 1, 0, sockets) == 0);
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RequireFailure(sockets[0], GuestEfault);
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Require(close_nid_postfix(sockets[0]) == 0);
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Require(close_nid_postfix(sockets[1]) == 0);
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Require(close_nid_postfix(file) == 0);
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#ifndef _WIN32
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RequireFailure(file, GuestEbadf);
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RequireFailure(-1, GuestEbadf);
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#endif
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std::filesystem::remove_all(root);
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}
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