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/*
* Copyright (c) 2000 - 2015 Samsung Electronics Co., Ltd All Rights Reserved
*
* 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
*/
/*
* @file socket-2-id.cpp
* @author Bartlomiej Grzelewski (b.grzelewski@samsung.com)
* @version 1.0
*/
#include <sys/smack.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <dpl/log/log.h>
#include <protocols.h>
#include <socket-2-id.h>
namespace CKM {
namespace {
int assignToString(std::vector<char> &vec, socklen_t len, std::string &res)
{
if (vec.size() <= len)
return -1;
vec[len] = 0; // old implementation getsockopt returns cstring without 0
if (vec[len-1] == 0)
--len; // new implementation of getsockopt returns cstring size+1
res.assign(vec.data(), len);
return 0;
}
} // namespace anonymous
int Socket2Id::getCredentialsFromSocket(int sock, std::string &res)
{
std::vector<char> result(SMACK_LABEL_LEN+1);
socklen_t length = SMACK_LABEL_LEN;
if (0 == getsockopt(sock, SOL_SOCKET, SO_PEERSEC, result.data(), &length))
return assignToString(result, length, res);
if (errno != ERANGE) {
LogError("getsockopt failed");
return -1;
}
result.resize(length+1);
if (0 > getsockopt(sock, SOL_SOCKET, SO_PEERSEC, result.data(), &length)) {
LogError("getsockopt failed with errno: " << errno);
return -1;
}
return assignToString(result, length, res);
}
void Socket2Id::resetCache()
{
m_stringMap.clear();
}
} // namespace CKM
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