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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/Socket.h"
#include "qpid/QpidError.h"
#include "check.h"
#include "PrivatePosix.h"
#include <fcntl.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/errno.h>
#include <netinet/in.h>
#include <netdb.h>
#include <boost/format.hpp>
namespace qpid {
namespace sys {
class SocketPrivate {
public:
SocketPrivate(int f = -1) :
fd(f)
{}
int fd;
};
Socket::Socket() :
impl(new SocketPrivate)
{
createTcp();
}
Socket::Socket(SocketPrivate* sp) :
impl(sp)
{}
Socket::~Socket() {
delete impl;
}
void Socket::createTcp() const
{
int& socket = impl->fd;
if (socket != -1) Socket::close();
int s = ::socket (PF_INET, SOCK_STREAM, 0);
if (s < 0) throw QPID_POSIX_ERROR(errno);
socket = s;
}
void Socket::setTimeout(const Duration& interval) const
{
const int& socket = impl->fd;
struct timeval tv;
toTimeval(tv, interval);
setsockopt(socket, SOL_SOCKET, SO_SNDTIMEO, &tv, sizeof(tv));
setsockopt(socket, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv));
}
void Socket::setNonblocking() const {
QPID_POSIX_CHECK(::fcntl(impl->fd, F_SETFL, O_NONBLOCK));
}
void Socket::connect(const std::string& host, int port) const
{
const int& socket = impl->fd;
struct sockaddr_in name;
name.sin_family = AF_INET;
name.sin_port = htons(port);
// TODO: Be good to make this work for IPv6 as well as IPv4
// Use more modern lookup functions
struct hostent* hp = gethostbyname ( host.c_str() );
if (hp == 0) throw QPID_POSIX_ERROR(errno);
memcpy(&name.sin_addr.s_addr, hp->h_addr_list[0], hp->h_length);
if (::connect(socket, (struct sockaddr*)(&name), sizeof(name)) < 0)
throw QPID_POSIX_ERROR(errno);
}
void
Socket::close() const
{
int& socket = impl->fd;
if (socket == -1) return;
if (::close(socket) < 0) throw QPID_POSIX_ERROR(errno);
socket = -1;
}
ssize_t
Socket::send(const void* data, size_t size) const
{
const int& socket = impl->fd;
ssize_t sent = ::send(socket, data, size, 0);
if (sent < 0) {
if (errno == ECONNRESET) return SOCKET_EOF;
if (errno == ETIMEDOUT) return SOCKET_TIMEOUT;
throw QPID_POSIX_ERROR(errno);
}
return sent;
}
ssize_t
Socket::recv(void* data, size_t size) const
{
const int& socket = impl->fd;
ssize_t received = ::recv(socket, data, size, 0);
if (received < 0) {
if (errno == ETIMEDOUT) return SOCKET_TIMEOUT;
throw QPID_POSIX_ERROR(errno);
}
return received;
}
int Socket::listen(int port, int backlog) const
{
const int& socket = impl->fd;
struct sockaddr_in name;
name.sin_family = AF_INET;
name.sin_port = htons(port);
name.sin_addr.s_addr = 0;
if (::bind(socket, (struct sockaddr*)&name, sizeof(name)) < 0)
throw QPID_POSIX_ERROR(errno);
if (::listen(socket, backlog) < 0)
throw QPID_POSIX_ERROR(errno);
socklen_t namelen = sizeof(name);
if (::getsockname(socket, (struct sockaddr*)&name, &namelen) < 0)
throw QPID_POSIX_ERROR(errno);
return ntohs(name.sin_port);
}
Socket* Socket::accept(struct sockaddr *addr, socklen_t *addrlen) const
{
int afd = ::accept(impl->fd, addr, addrlen);
if ( afd >= 0)
return new Socket(new SocketPrivate(afd));
else if (errno == EAGAIN)
return 0;
else throw QPID_POSIX_ERROR(errno);
}
int Socket::read(void *buf, size_t count) const
{
return ::read(impl->fd, buf, count);
}
int Socket::write(const void *buf, size_t count) const
{
return ::write(impl->fd, buf, count);
}
std::string Socket::getSockname() const
{
::sockaddr_storage name; // big enough for any socket address
::socklen_t namelen = sizeof(name);
const int& socket = impl->fd;
if (::getsockname(socket, (::sockaddr*)&name, &namelen) < 0)
throw QPID_POSIX_ERROR(errno);
char dispName[NI_MAXHOST];
if (int rc=::getnameinfo((::sockaddr*)&name, namelen, dispName, sizeof(dispName), 0, 0, NI_NUMERICHOST) != 0)
throw QPID_POSIX_ERROR(rc);
return dispName;
}
int toFd(const SocketPrivate* s)
{
return s->fd;
}
}} // namespace qpid::sys
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