Sock::status_t
Sock::connectTo(int sock, const char* hostname, unsigned int port)
{
struct sockaddr_in s_addr;
struct hostent sent_struct, *sent = NULL;
int rc, err;
char buff[HOST_BUF_SIZE];
// using reentrant version of gethostbyname()
rc = gethostbyname_r(hostname, &sent_struct,
buff, HOST_BUF_SIZE, &sent, &err);
if((rc) || (sent == NULL)) {
return ERR_SOCK_RESOLVE;
}
memset((char *)&s_addr, 0, sizeof(s_addr));
s_addr.sin_family = AF_INET;
memcpy(&s_addr.sin_addr.s_addr, sent->h_addr, sent->h_length);
s_addr.sin_port = htons(port);
// Enable keepalive so we will be informed if the peer
// node goes away before it can inform us.
setKeepalive(sock);
rc = connect(sock, (struct sockaddr *)&s_addr, sizeof(s_addr));
if(rc < 0) {
if (errno != EINPROGRESS)
return ERR_SOCK_CONNECT;
return SOCK_CONNECTING;
}
return SUCCESS;
}
Sock::status_t
Sock::setupListener(unsigned short port, int& listen_sock,
int sndBufSz, int rcvBufSz)
{
int rc;
struct sockaddr_in s_addr;
listen_sock = socket(PF_INET, SOCK_STREAM, 0);
if(listen_sock < 0) {
LOG_ERROR("Sock::setupListener: socket: %s\n", strerror(errno));
return ERR_SOCK_CREATE;
}
setCloExec(listen_sock);
memset((char *)&s_addr, 0, sizeof(s_addr));
s_addr.sin_family = AF_INET;
s_addr.sin_addr.s_addr = htonl(INADDR_ANY);
s_addr.sin_port = htons(port);
// Reuse addr so the server can be restarted immediately. Eliminates
// CLOSE_WAIT state of the server side of the socket
setReuseAddr(listen_sock);
// Enable keepalive so we will be informed if the peer
// node goes away before it can inform us.
setKeepalive(listen_sock);
// Set send and receive buffer sizes before listen (see man 7 tcp)
setBufSize(listen_sock, sndBufSz, rcvBufSz);
rc = bind(listen_sock, (struct sockaddr *)&s_addr, sizeof(s_addr));
if(rc < 0) {
LOG_ERROR("Sock::setupListener: bind: %s\n", strerror(errno));
return ERR_SOCK_BIND;
}
// We could just use SOMAXCONN
// rc = listen(listen_sock, SOMAXCONN);
rc = listen(listen_sock, Sock::LISTEN_BACKLOG);
if(rc < 0) {
LOG_ERROR("Sock::setupListener: listen: %s\n", strerror(errno));
return ERR_SOCK_LISTEN;
}
return SUCCESS;
}
Sock::status_t
Sock::connectToUdServer(const char* path, int& sock)
{
struct sockaddr_un s_addr;
int rc;
memset((char *)&s_addr, 0, sizeof(s_addr));
s_addr.sun_family = AF_LOCAL;
strcpy(s_addr.sun_path, path);
// Enable keepalive so we will be informed if the peer
// node goes away before it can inform us.
setKeepalive(sock);
rc = connect(sock, (struct sockaddr *)&s_addr, sizeof(s_addr));
if(rc < 0) {
return ERR_SOCK_CONNECT;
}
return SUCCESS;
}
void MythSocket::setSocket(int socket, Type type)
{
VERBOSE(VB_SOCKET, LOC + QString("setSocket: %1").arg(socket));
if (socket < 0)
{
VERBOSE(VB_SOCKET, LOC + "setSocket called with invalid socket");
return;
}
if (state() == Connected)
{
VERBOSE(VB_SOCKET, LOC +
"setSocket called while in Connected state, closing");
close();
}
MSocketDevice::setSocket(socket, type);
setBlocking(false);
setState(Connected);
setKeepalive(true);
}
/**
* \brief connect to host
* \return true on success
*/
bool MythSocket::connect(const QHostAddress &addr, quint16 port)
{
if (state() == Connected)
{
VERBOSE(VB_SOCKET, LOC +
"connect() called with already open socket, closing");
close();
}
VERBOSE(VB_SOCKET, LOC + QString("attempting connect() to (%1:%2)")
.arg(addr.toString()).arg(port));
if (!MSocketDevice::connect(addr, port))
{
VERBOSE(VB_SOCKET, LOC + QString("connect() failed (%1)")
.arg(errorToString()));
setState(Idle);
return false;
}
setReceiveBufferSize(kSocketBufferSize);
setAddressReusable(true);
setKeepalive(true);
if (state() == Connecting)
{
setState(Connected);
if (m_cb)
{
VERBOSE(VB_SOCKET, LOC + "calling m_cb->connected()");
m_cb->connected(this);
s_readyread_thread->WakeReadyReadThread();
}
}
else
{
setState(Connected);
}
return true;
}