mirror of
https://github.com/boykopovar/AnyPS5.git
synced 2026-10-22 00:22:57 -05:00
Alexej Szpevák
b71434d9b7
A ZArchive named app0.zar beside app0/ is a read-only layer under it. libc opens it at the first path resolution, looks paths missing from app0/ up case-insensitively, reads files across compressed blocks and keeps the archived descriptor table with shared positions. Resolving an archive-only path through a call that does not read the archive throws instead of failing with ENOENT, as do opendir of a directory present in both places, fdopen of an archived descriptor and chdir into the archive. A path through .. in an archive-only directory resolves.
54 lines
1.9 KiB
C++
54 lines
1.9 KiB
C++
#ifndef CORE_LIBS_TESTS_APPARCHIVEFIXTURE_HPP
|
|
#define CORE_LIBS_TESTS_APPARCHIVEFIXTURE_HPP
|
|
|
|
#include <zarchive/zarchivewriter.h>
|
|
|
|
#include <chrono>
|
|
#include <cstdlib>
|
|
#include <filesystem>
|
|
#include <fstream>
|
|
#include <map>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
namespace AppArchiveFixture {
|
|
|
|
inline std::vector<char> Pattern(std::size_t size) {
|
|
std::vector<char> data(size);
|
|
for (std::size_t i = 0; i < size; ++i) data[i] = static_cast<char>((i * 7 + i / 4096) & 0xff);
|
|
return data;
|
|
}
|
|
|
|
inline std::filesystem::path EnterFreshRoot(const char* name) {
|
|
const auto root = std::filesystem::temp_directory_path() /
|
|
(std::string(name) + "-" + std::to_string(std::chrono::steady_clock::now().time_since_epoch().count()));
|
|
std::filesystem::create_directories(root / "app0" / "sce_sys");
|
|
std::filesystem::current_path(root);
|
|
return std::filesystem::canonical(root);
|
|
}
|
|
|
|
inline void WriteArchive(const std::filesystem::path& path, const std::map<std::string, std::vector<char>>& files, const std::vector<std::string>& directories = {}) {
|
|
std::ofstream output(path, std::ios::binary | std::ios::trunc);
|
|
if (!output) std::abort();
|
|
ZArchiveWriter writer(
|
|
[](std::int32_t, void*) {},
|
|
[](const void* data, std::size_t length, void* context) {
|
|
static_cast<std::ofstream*>(context)->write(static_cast<const char*>(data), static_cast<std::streamsize>(length));
|
|
},
|
|
&output);
|
|
for (const auto& directory : directories) if (!writer.MakeDir(directory.c_str(), true)) std::abort();
|
|
for (const auto& [name, data] : files) {
|
|
const auto slash = name.find_last_of('/');
|
|
if (slash != std::string::npos) writer.MakeDir(name.substr(0, slash).c_str(), true);
|
|
if (!writer.StartNewFile(name.c_str())) std::abort();
|
|
if (!data.empty()) writer.AppendData(data.data(), data.size());
|
|
}
|
|
writer.Finalize();
|
|
output.close();
|
|
if (!output) std::abort();
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|