* Copyright (C) 2023 Huawei Device Co., Ltd.
* 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 "gsm_cb_pdu_decode_buffer.h"
#include "securec.h"
#include "telephony_log_wrapper.h"
namespace OHOS {
namespace Telephony {
using namespace std;
static constexpr uint16_t MAX_CB_MSG_LEN = 4200;
GsmCbPduDecodeBuffer::GsmCbPduDecodeBuffer(uint32_t len)
{
if (len == 0 || len > MAX_CB_MSG_LEN) {
TELEPHONY_LOGE("pdu data error.");
return;
}
pduBuffer_ = std::make_unique<char[]>(len);
if (pduBuffer_ == nullptr) {
TELEPHONY_LOGE("pduBuffer_ nullptr error");
totolLength_ = 0;
return;
}
totolLength_ = len;
}
GsmCbPduDecodeBuffer::~GsmCbPduDecodeBuffer() {}
bool GsmCbPduDecodeBuffer::PickOneByte(uint8_t &oneByte)
{
if (pduBuffer_ == nullptr || curPosition_ >= totolLength_) {
TELEPHONY_LOGE("curPosition_ over size.");
return false;
}
oneByte = pduBuffer_[curPosition_];
return true;
}
bool GsmCbPduDecodeBuffer::GetOneByte(uint8_t &oneByte)
{
if (pduBuffer_ == nullptr || curPosition_ >= totolLength_) {
return false;
}
oneByte = pduBuffer_[curPosition_++];
return true;
}
void GsmCbPduDecodeBuffer::IncreasePointer(uint32_t offset)
{
curPosition_ += offset;
}
void GsmCbPduDecodeBuffer::SetPointer(uint32_t offset)
{
curPosition_ = offset;
}
uint32_t GsmCbPduDecodeBuffer::GetCurPosition()
{
return curPosition_;
}
uint32_t GsmCbPduDecodeBuffer::GetSize()
{
return totolLength_;
}
void GsmCbPduDecodeBuffer::SetSize(uint32_t len)
{
totolLength_ = len;
}
}
}