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suyu/src/core/file_sys/nca_metadata.cpp
Morph 99ceb03a1c general: Convert source file copyright comments over to SPDX
This formats all copyright comments according to SPDX formatting guidelines.
Additionally, this resolves the remaining GPLv2 only licensed files by relicensing them to GPLv2.0-or-later.
2022-04-23 05:55:32 -04:00

124 lines
4.3 KiB
C++

// SPDX-FileCopyrightText: Copyright 2018 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include <cstring>
#include "common/common_types.h"
#include "common/logging/log.h"
#include "common/swap.h"
#include "core/file_sys/nca_metadata.h"
#include "core/file_sys/vfs.h"
namespace FileSys {
CNMT::CNMT(VirtualFile file) {
if (file->ReadObject(&header) != sizeof(CNMTHeader))
return;
// If type is {Application, Update, AOC} has opt-header.
if (header.type >= TitleType::Application && header.type <= TitleType::AOC) {
if (file->ReadObject(&opt_header, sizeof(CNMTHeader)) != sizeof(OptionalHeader)) {
LOG_WARNING(Loader, "Failed to read optional header.");
}
}
for (u16 i = 0; i < header.number_content_entries; ++i) {
auto& next = content_records.emplace_back(ContentRecord{});
if (file->ReadObject(&next, sizeof(CNMTHeader) + i * sizeof(ContentRecord) +
header.table_offset) != sizeof(ContentRecord)) {
content_records.erase(content_records.end() - 1);
}
}
for (u16 i = 0; i < header.number_meta_entries; ++i) {
auto& next = meta_records.emplace_back(MetaRecord{});
if (file->ReadObject(&next, sizeof(CNMTHeader) + i * sizeof(MetaRecord) +
header.table_offset) != sizeof(MetaRecord)) {
meta_records.erase(meta_records.end() - 1);
}
}
}
CNMT::CNMT(CNMTHeader header_, OptionalHeader opt_header_,
std::vector<ContentRecord> content_records_, std::vector<MetaRecord> meta_records_)
: header(std::move(header_)), opt_header(std::move(opt_header_)),
content_records(std::move(content_records_)), meta_records(std::move(meta_records_)) {}
CNMT::~CNMT() = default;
u64 CNMT::GetTitleID() const {
return header.title_id;
}
u32 CNMT::GetTitleVersion() const {
return header.title_version;
}
TitleType CNMT::GetType() const {
return header.type;
}
const std::vector<ContentRecord>& CNMT::GetContentRecords() const {
return content_records;
}
const std::vector<MetaRecord>& CNMT::GetMetaRecords() const {
return meta_records;
}
bool CNMT::UnionRecords(const CNMT& other) {
bool change = false;
for (const auto& rec : other.content_records) {
const auto iter = std::find_if(content_records.begin(), content_records.end(),
[&rec](const ContentRecord& r) {
return r.nca_id == rec.nca_id && r.type == rec.type;
});
if (iter == content_records.end()) {
content_records.emplace_back(rec);
++header.number_content_entries;
change = true;
}
}
for (const auto& rec : other.meta_records) {
const auto iter =
std::find_if(meta_records.begin(), meta_records.end(), [&rec](const MetaRecord& r) {
return r.title_id == rec.title_id && r.title_version == rec.title_version &&
r.type == rec.type;
});
if (iter == meta_records.end()) {
meta_records.emplace_back(rec);
++header.number_meta_entries;
change = true;
}
}
return change;
}
std::vector<u8> CNMT::Serialize() const {
const bool has_opt_header =
header.type >= TitleType::Application && header.type <= TitleType::AOC;
const auto dead_zone = header.table_offset + sizeof(CNMTHeader);
std::vector<u8> out(
std::max(sizeof(CNMTHeader) + (has_opt_header ? sizeof(OptionalHeader) : 0), dead_zone) +
content_records.size() * sizeof(ContentRecord) + meta_records.size() * sizeof(MetaRecord));
memcpy(out.data(), &header, sizeof(CNMTHeader));
// Optional Header
if (has_opt_header) {
memcpy(out.data() + sizeof(CNMTHeader), &opt_header, sizeof(OptionalHeader));
}
u64_le offset = header.table_offset;
for (const auto& rec : content_records) {
memcpy(out.data() + offset + sizeof(CNMTHeader), &rec, sizeof(ContentRecord));
offset += sizeof(ContentRecord);
}
for (const auto& rec : meta_records) {
memcpy(out.data() + offset + sizeof(CNMTHeader), &rec, sizeof(MetaRecord));
offset += sizeof(MetaRecord);
}
return out;
}
} // namespace FileSys