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1c340c6efa
Allows reporting more cases where logic errors may exist, such as implicit fallthrough cases, etc. We currently ignore unused parameters, since we currently have many cases where this is intentional (virtual interfaces). While we're at it, we can also tidy up any existing code that causes warnings. This also uncovered a few bugs as well.
79 lines
2.6 KiB
C++
79 lines
2.6 KiB
C++
// Copyright 2019 yuzu emulator team
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <string>
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#include <zip.h>
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#include "common/logging/backend.h"
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#include "core/file_sys/vfs.h"
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#include "core/file_sys/vfs_libzip.h"
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#include "core/file_sys/vfs_vector.h"
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namespace FileSys {
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VirtualDir ExtractZIP(VirtualFile file) {
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zip_error_t error{};
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const auto data = file->ReadAllBytes();
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std::unique_ptr<zip_source_t, decltype(&zip_source_close)> src{
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zip_source_buffer_create(data.data(), data.size(), 0, &error), zip_source_close};
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if (src == nullptr)
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return nullptr;
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std::unique_ptr<zip_t, decltype(&zip_close)> zip{zip_open_from_source(src.get(), 0, &error),
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zip_close};
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if (zip == nullptr)
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return nullptr;
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std::shared_ptr<VectorVfsDirectory> out = std::make_shared<VectorVfsDirectory>();
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const auto num_entries = static_cast<std::size_t>(zip_get_num_entries(zip.get(), 0));
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zip_stat_t stat{};
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zip_stat_init(&stat);
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for (std::size_t i = 0; i < num_entries; ++i) {
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const auto stat_res = zip_stat_index(zip.get(), i, 0, &stat);
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if (stat_res == -1)
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return nullptr;
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const std::string name(stat.name);
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if (name.empty())
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continue;
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if (name.back() != '/') {
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std::unique_ptr<zip_file_t, decltype(&zip_fclose)> file2{
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zip_fopen_index(zip.get(), i, 0), zip_fclose};
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std::vector<u8> buf(stat.size);
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if (zip_fread(file2.get(), buf.data(), buf.size()) != s64(buf.size()))
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return nullptr;
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const auto parts = FileUtil::SplitPathComponents(stat.name);
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const auto new_file = std::make_shared<VectorVfsFile>(buf, parts.back());
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std::shared_ptr<VectorVfsDirectory> dtrv = out;
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for (std::size_t j = 0; j < parts.size() - 1; ++j) {
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if (dtrv == nullptr)
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return nullptr;
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const auto subdir = dtrv->GetSubdirectory(parts[j]);
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if (subdir == nullptr) {
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const auto temp = std::make_shared<VectorVfsDirectory>(
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std::vector<VirtualFile>{}, std::vector<VirtualDir>{}, parts[j]);
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dtrv->AddDirectory(temp);
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dtrv = temp;
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} else {
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dtrv = std::dynamic_pointer_cast<VectorVfsDirectory>(subdir);
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}
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}
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if (dtrv == nullptr)
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return nullptr;
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dtrv->AddFile(new_file);
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}
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}
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return out;
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}
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} // namespace FileSys
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