You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
97 lines
2.9 KiB
97 lines
2.9 KiB
/*
|
|
* Copyright (C) 2018 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include "idmap2/BinaryStreamVisitor.h"
|
|
|
|
#include <algorithm>
|
|
#include <cstring>
|
|
#include <string>
|
|
|
|
#include "android-base/macros.h"
|
|
|
|
namespace android::idmap2 {
|
|
|
|
void BinaryStreamVisitor::Write8(uint8_t value) {
|
|
stream_.write(reinterpret_cast<char*>(&value), sizeof(uint8_t));
|
|
}
|
|
|
|
void BinaryStreamVisitor::Write16(uint16_t value) {
|
|
uint16_t x = htodl(value);
|
|
stream_.write(reinterpret_cast<char*>(&x), sizeof(uint16_t));
|
|
}
|
|
|
|
void BinaryStreamVisitor::Write32(uint32_t value) {
|
|
uint32_t x = htodl(value);
|
|
stream_.write(reinterpret_cast<char*>(&x), sizeof(uint32_t));
|
|
}
|
|
|
|
void BinaryStreamVisitor::WriteString(const StringPiece& value) {
|
|
// pad with null to nearest word boundary;
|
|
size_t padding_size = CalculatePadding(value.size());
|
|
Write32(value.size());
|
|
stream_.write(value.data(), value.size());
|
|
stream_.write("\0\0\0\0", padding_size);
|
|
}
|
|
|
|
void BinaryStreamVisitor::visit(const Idmap& idmap ATTRIBUTE_UNUSED) {
|
|
// nothing to do
|
|
}
|
|
|
|
void BinaryStreamVisitor::visit(const IdmapHeader& header) {
|
|
Write32(header.GetMagic());
|
|
Write32(header.GetVersion());
|
|
Write32(header.GetTargetCrc());
|
|
Write32(header.GetOverlayCrc());
|
|
Write32(header.GetFulfilledPolicies());
|
|
Write32(static_cast<uint8_t>(header.GetEnforceOverlayable()));
|
|
WriteString(header.GetTargetPath());
|
|
WriteString(header.GetOverlayPath());
|
|
WriteString(header.GetOverlayName());
|
|
WriteString(header.GetDebugInfo());
|
|
}
|
|
|
|
void BinaryStreamVisitor::visit(const IdmapData& data) {
|
|
for (const auto& target_entry : data.GetTargetEntries()) {
|
|
Write32(target_entry.target_id);
|
|
Write32(target_entry.overlay_id);
|
|
}
|
|
|
|
static constexpr uint16_t kValueSize = 8U;
|
|
for (const auto& target_entry : data.GetTargetInlineEntries()) {
|
|
Write32(target_entry.target_id);
|
|
Write16(kValueSize);
|
|
Write8(0U); // padding
|
|
Write8(target_entry.value.data_type);
|
|
Write32(target_entry.value.data_value);
|
|
}
|
|
|
|
for (const auto& overlay_entry : data.GetOverlayEntries()) {
|
|
Write32(overlay_entry.overlay_id);
|
|
Write32(overlay_entry.target_id);
|
|
}
|
|
|
|
WriteString(data.GetStringPoolData());
|
|
}
|
|
|
|
void BinaryStreamVisitor::visit(const IdmapData::Header& header) {
|
|
Write32(header.GetTargetEntryCount());
|
|
Write32(header.GetTargetInlineEntryCount());
|
|
Write32(header.GetOverlayEntryCount());
|
|
Write32(header.GetStringPoolIndexOffset());
|
|
}
|
|
|
|
} // namespace android::idmap2
|