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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 "qpid/sys/SocketAddress.h"
#include "qpid/sys/posix/check.h"
#include <sys/socket.h>
#include <string.h>
#include <netdb.h>
#include <algorithm>
namespace qpid {
namespace sys {
SocketAddress::SocketAddress(const std::string& host0, const std::string& port0) :
host(host0),
port(port0),
addrInfo(0)
{
}
SocketAddress::SocketAddress(const SocketAddress& sa) :
host(sa.host),
port(sa.port),
addrInfo(0)
{
}
SocketAddress& SocketAddress::operator=(const SocketAddress& sa)
{
SocketAddress temp(sa);
std::swap(temp, *this);
return *this;
}
SocketAddress::~SocketAddress()
{
if (addrInfo) {
::freeaddrinfo(addrInfo);
}
}
std::string SocketAddress::asString(bool numeric) const
{
if (!numeric)
return host + ":" + port;
// Canonicalise into numeric id
const ::addrinfo& ai = getAddrInfo(*this);
char servName[NI_MAXSERV];
char dispName[NI_MAXHOST];
if (int rc=::getnameinfo(ai.ai_addr, ai.ai_addrlen,
dispName, sizeof(dispName),
servName, sizeof(servName),
NI_NUMERICHOST | NI_NUMERICSERV) != 0)
throw QPID_POSIX_ERROR(rc);
std::string s(dispName);
s += ":";
s += servName;
return s;
}
const ::addrinfo& getAddrInfo(const SocketAddress& sa)
{
if (!sa.addrInfo) {
::addrinfo hints;
::memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_INET; // Change this to support IPv6
hints.ai_socktype = SOCK_STREAM;
const char* node = 0;
if (sa.host.empty()) {
hints.ai_flags |= AI_PASSIVE;
} else {
node = sa.host.c_str();
}
const char* service = sa.port.empty() ? "0" : sa.port.c_str();
int n = ::getaddrinfo(node, service, &hints, &sa.addrInfo);
if (n != 0)
throw Exception(QPID_MSG("Cannot resolve " << sa.asString(false) << ": " << ::gai_strerror(n)));
}
return *sa.addrInfo;
}
}}
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