/*!
Connects to the IP address and port specified by \a addr and \a
port. Returns true if it establishes a connection; otherwise returns false.
If it returns false, error() explains why.
Note that error() commonly returns NoError for non-blocking
sockets; this just means that you can call connect() again in a
little while and it'll probably succeed.
*/
bool MSocketDevice::connect(const QHostAddress &addr, quint16 port)
{
if (isValid() && addr.protocol() != pa.protocol())
{
close();
fd = -1;
}
if (!isValid())
{
#if !defined(QT_NO_IPV6)
if (addr.protocol() == QAbstractSocket::IPv6Protocol)
{
setProtocol(IPv6);
LOG(VB_SOCKET, LOG_INFO,
"MSocketDevice::connect: setting Protocol to IPv6");
}
else
#endif
if (addr.protocol() == QAbstractSocket::IPv4Protocol)
{
setProtocol(IPv4);
LOG(VB_SOCKET, LOG_INFO,
"MSocketDevice::connect: setting Protocol to IPv4");
}
LOG(VB_SOCKET, LOG_INFO,
"MSocketDevice::connect: attempting to create new socket");
MSocketDevice::setSocket(createNewSocket(), t);
// If still not valid, give up.
if (!isValid())
return false;
}
pa = addr;
pp = port;
struct sockaddr_in a4;
struct sockaddr *aa;
QT_SOCKLEN_T aalen;
#if !defined(QT_NO_IPV6)
struct sockaddr_in6 a6;
if (addr.protocol() == QAbstractSocket::IPv6Protocol)
{
memset(&a6, 0, sizeof(a6));
a6.sin6_family = AF_INET6;
a6.sin6_port = htons(port);
Q_IPV6ADDR ip6 = addr.toIPv6Address();
memcpy(&a6.sin6_addr.s6_addr, &ip6, sizeof(ip6));
aalen = sizeof(a6);
aa = (struct sockaddr *) & a6;
}
else
#endif
if (addr.protocol() == QAbstractSocket::IPv4Protocol)
{
memset(&a4, 0, sizeof(a4));
a4.sin_family = AF_INET;
a4.sin_port = htons(port);
a4.sin_addr.s_addr = htonl(addr.toIPv4Address());
aalen = sizeof(a4);
aa = (struct sockaddr *) & a4;
}
else
{
e = Impossible;
return false;
}
int r = QT_SOCKET_CONNECT(fd, aa, aalen);
if (r == 0)
{
fetchConnectionParameters();
return true;
}
if (errno == EISCONN || errno == EALREADY || errno == EINPROGRESS)
{
fetchConnectionParameters();
return true;
}
if (e != NoError || errno == EAGAIN || errno == EWOULDBLOCK)
{
return false;
}
switch (errno)
{
case EBADF:
case ENOTSOCK:
e = Impossible;
break;
case EFAULT:
case EAFNOSUPPORT:
e = InternalError;
break;
case ECONNREFUSED:
e = ConnectionRefused;
break;
case ETIMEDOUT:
case ENETUNREACH:
e = NetworkFailure;
break;
case EADDRINUSE:
e = NoResources;
break;
case EACCES:
case EPERM:
e = Inaccessible;
break;
default:
e = UnknownError;
break;
}
return false;
}
bool Q3SocketDevice::connect( const QHostAddress &addr, Q_UINT16 port )
{
if ( !isValid() )
return false;
pa = addr;
pp = port;
struct sockaddr_in a4;
struct sockaddr *aa;
QT_SOCKLEN_T aalen;
#if !defined(QT_NO_IPV6)
struct sockaddr_in6 a6;
if ( addr.isIPv6Address() ) {
memset( &a6, 0, sizeof(a6) );
a6.sin6_family = AF_INET6;
a6.sin6_port = htons( port );
Q_IPV6ADDR ip6 = addr.toIPv6Address();
memcpy( &a6.sin6_addr.s6_addr, &ip6, sizeof(ip6) );
aalen = sizeof( a6 );
aa = (struct sockaddr *)&a6;
} else
#endif
if ( addr.isIPv4Address() ) {
memset( &a4, 0, sizeof(a4) );
a4.sin_family = AF_INET;
a4.sin_port = htons( port );
a4.sin_addr.s_addr = htonl( addr.toIPv4Address() );
aalen = sizeof(a4);
aa = (struct sockaddr *)&a4;
} else {
e = Impossible;
return false;
}
int r = QT_SOCKET_CONNECT( fd, aa, aalen );
if ( r == 0 ) {
fetchConnectionParameters();
return true;
}
if ( errno == EISCONN || errno == EALREADY || errno == EINPROGRESS ) {
fetchConnectionParameters();
return true;
}
if ( e != NoError || errno == EAGAIN || errno == EWOULDBLOCK ) {
return false;
}
switch( errno ) {
case EBADF:
case ENOTSOCK:
e = Impossible;
break;
case EFAULT:
case EAFNOSUPPORT:
e = InternalError;
break;
case ECONNREFUSED:
e = ConnectionRefused;
break;
case ETIMEDOUT:
case ENETUNREACH:
e = NetworkFailure;
break;
case EADDRINUSE:
e = NoResources;
break;
case EACCES:
case EPERM:
e = Inaccessible;
break;
default:
e = UnknownError;
break;
}
return false;
}
bool QNativeSocketEnginePrivate::nativeConnect(const QHostAddress &addr, quint16 port)
{
struct sockaddr_in sockAddrIPv4;
struct sockaddr *sockAddrPtr = 0;
QT_SOCKLEN_T sockAddrSize = 0;
#if !defined(QT_NO_IPV6)
struct sockaddr_in6 sockAddrIPv6;
if (addr.protocol() == QAbstractSocket::IPv6Protocol) {
memset(&sockAddrIPv6, 0, sizeof(sockAddrIPv6));
sockAddrIPv6.sin6_family = AF_INET6;
sockAddrIPv6.sin6_port = htons(port);
#ifndef QT_NO_IPV6IFNAME
sockAddrIPv6.sin6_scope_id = ::if_nametoindex(addr.scopeId().toLatin1().data());
#else
sockAddrIPv6.sin6_scope_id = addr.scopeId().toInt();
#endif
Q_IPV6ADDR ip6 = addr.toIPv6Address();
memcpy(&sockAddrIPv6.sin6_addr.s6_addr, &ip6, sizeof(ip6));
sockAddrSize = sizeof(sockAddrIPv6);
sockAddrPtr = (struct sockaddr *) &sockAddrIPv6;
} else
#if 0
{}
#endif
#endif
if (addr.protocol() == QAbstractSocket::IPv4Protocol) {
memset(&sockAddrIPv4, 0, sizeof(sockAddrIPv4));
sockAddrIPv4.sin_family = AF_INET;
sockAddrIPv4.sin_port = htons(port);
sockAddrIPv4.sin_addr.s_addr = htonl(addr.toIPv4Address());
sockAddrSize = sizeof(sockAddrIPv4);
sockAddrPtr = (struct sockaddr *) &sockAddrIPv4;
} else {
// unreachable
}
int connectResult = QT_SOCKET_CONNECT(socketDescriptor, sockAddrPtr, sockAddrSize);
if (connectResult == -1) {
switch (errno) {
case EINVAL:
setError(QAbstractSocket::UnsupportedSocketOperationError, OperationUnsupportedErrorString);
break;
case EISCONN:
socketState = QAbstractSocket::ConnectedState;
break;
case ECONNREFUSED:
setError(QAbstractSocket::ConnectionRefusedError, ConnectionRefusedErrorString);
break;
case ETIMEDOUT:
setError(QAbstractSocket::NetworkError, ConnectionTimeOutErrorString);
break;
case ENETUNREACH:
setError(QAbstractSocket::NetworkError, UnreachableErrorString);
break;
case EADDRINUSE:
setError(QAbstractSocket::NetworkError, AddressInuseErrorString);
break;
case EINPROGRESS:
case EALREADY:
socketState = QAbstractSocket::ConnectingState;
break;
case EAGAIN:
setError(QAbstractSocket::SocketResourceError, ResourceErrorString);
break;
case EACCES:
case EPERM:
setError(QAbstractSocket::SocketAccessError, AccessErrorString);
break;
case EAFNOSUPPORT:
case EBADF:
case EFAULT:
case ENOTSOCK:
default:
break;
}
if (socketState != QAbstractSocket::ConnectedState) {
#if defined (QNATIVESOCKETENGINE_DEBUG)
qDebug("QNativeSocketEnginePrivate::nativeConnect(%s, %i) == false (%s)",
addr.toString().toLatin1().constData(), port,
socketState == QAbstractSocket::ConnectingState
? "Connection in progress" : socketErrorString.toLatin1().constData());
#endif
return false;
}
}
#if defined (QNATIVESOCKETENGINE_DEBUG)
qDebug("QNativeSocketEnginePrivate::nativeConnect(%s, %i) == true",
addr.toString().toLatin1().constData(), port);
#endif
socketState = QAbstractSocket::ConnectedState;
return true;
}