1/*
2 * Copyright (c) 2024-2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *     http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16#include <cinttypes>
17#include <algorithm>
18#include <stdexcept>
19#include <string>
20
21#include "zip_utils.h"
22
23namespace OHOS {
24namespace SignatureTools {
25bool ZipUtils::SetCentralDirectoryOffset(ByteBuffer& eocd, int64_t offset)
26{
27    if (!SetUInt32ToBuffer(eocd, eocd.GetPosition() + ZIP_CENTRAL_DIR_OFFSET_IN_EOCD, offset)) {
28        SIGNATURE_TOOLS_LOGE("Set Central Directory Offset failed.");
29        return false;
30    }
31    return true;
32}
33
34bool ZipUtils::SetUInt32ToBuffer(ByteBuffer& buffer, int offset, int64_t value)
35{
36    SIGNATURE_TOOLS_LOGI("offset: %d, value: %" PRId64 ", UINT32_MAX_VALUE: %" PRId64,
37                         offset, value, UINT32_MAX_VALUE);
38    if ((value < 0) || (value > UINT32_MAX_VALUE)) {
39        SIGNATURE_TOOLS_LOGE("invalid_argument. value of out range: %" PRId64, value);
40        return false;
41    }
42    buffer.PutInt32(offset, static_cast<int>(value));
43    return true;
44}
45} // namespace SignatureTools
46} // namespace OHOS