Switch commoncpp2 to ucommon to solve dependency conflicts.

libccrtp was depending on commoncpp2, and have been replaced by a version
depending on ucommon as well.
diff --git a/jni/libucommon/sources/inc/commoncpp/socket.h b/jni/libucommon/sources/inc/commoncpp/socket.h
new file mode 100644
index 0000000..58663dc
--- /dev/null
+++ b/jni/libucommon/sources/inc/commoncpp/socket.h
@@ -0,0 +1,647 @@
+// Copyright (C) 1999-2005 Open Source Telecom Corporation.
+// Copyright (C) 2006-2010 David Sugar, Tycho Softworks.
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+//
+// As a special exception, you may use this file as part of a free software
+// library without restriction.  Specifically, if other files instantiate
+// templates or use macros or inline functions from this file, or you compile
+// this file and link it with other files to produce an executable, this
+// file does not by itself cause the resulting executable to be covered by
+// the GNU General Public License.  This exception does not however
+// invalidate any other reasons why the executable file might be covered by
+// the GNU General Public License.
+//
+// This exception applies only to the code released under the name GNU
+// Common C++.  If you copy code from other releases into a copy of GNU
+// Common C++, as the General Public License permits, the exception does
+// not apply to the code that you add in this way.  To avoid misleading
+// anyone as to the status of such modified files, you must delete
+// this exception notice from them.
+//
+// If you write modifications of your own for GNU Common C++, it is your choice
+// whether to permit this exception to apply to your modifications.
+// If you do not wish that, delete this exception notice.
+//
+
+/**
+ * @file commoncpp/socket.h
+ * @short socket operations.
+ **/
+
+#ifndef COMMONCPP_SOCKET_H_
+#define COMMONCPP_SOCKET_H_
+
+#include <cstdio>
+
+#ifndef COMMONCPP_CONFIG_H_
+#include <commoncpp/config.h>
+#endif
+
+#ifndef COMMONCPP_STRING_H_
+#include <commoncpp/string.h>
+#endif
+
+#ifndef COMMONCPP_ADDRESS_H_
+#include <commoncpp/address.h>
+#endif
+
+#ifndef COMMONCPP_EXCEPTION_H_
+#include <commoncpp/exception.h>
+#endif
+
+#ifndef MSG_DONTWAIT
+#define MSG_DONTWAIT    0
+#endif
+
+#ifndef MSG_NOSIGNAL
+#define MSG_NOSIGNAL    0
+#endif
+
+#ifndef SOCK_DCCP
+#define SOCK_DCCP       6
+#endif
+#ifndef IPPROTO_DCCP
+#define IPPROTO_DCCP    33
+#endif
+#ifndef SOL_DCCP
+#define SOL_DCCP       269
+#endif
+#define DCCP_SOCKOPT_AVAILABLE_CCIDS    12
+#define DCCP_SOCKOPT_CCID               13
+#define DCCP_SOCKOPT_TX_CCID            14
+#define DCCP_SOCKOPT_RX_CCID            15
+
+NAMESPACE_COMMONCPP
+
+typedef socket_t    SOCKET;
+
+class __EXPORT Socket : protected ucommon::Socket
+{
+public:
+    enum State {
+        INITIAL,
+        AVAILABLE,
+        BOUND,
+        CONNECTED,
+        CONNECTING,
+        STREAM
+    };
+    typedef enum State State;
+
+    enum Family {
+#ifdef  CCXX_IPV6
+        IPV6 = AF_INET6,
+#endif
+        IPV4 = AF_INET
+    };
+
+    typedef enum Family Family;
+
+    enum Error {
+        errSuccess = 0,
+        errCreateFailed,
+        errCopyFailed,
+        errInput,
+        errInputInterrupt,
+        errResourceFailure,
+        errOutput,
+        errOutputInterrupt,
+        errNotConnected,
+        errConnectRefused,
+        errConnectRejected,
+        errConnectTimeout,
+        errConnectFailed,
+        errConnectInvalid,
+        errConnectBusy,
+        errConnectNoRoute,
+        errBindingFailed,
+        errBroadcastDenied,
+        errRoutingDenied,
+        errKeepaliveDenied,
+        errServiceDenied,
+        errServiceUnavailable,
+        errMulticastDisabled,
+        errTimeout,
+        errNoDelay,
+        errExtended,
+        errLookupFail,
+        errSearchErr,
+        errInvalidValue
+    };
+
+    typedef enum Error Error;
+
+    enum Tos {
+        tosLowDelay = 0,
+        tosThroughput,
+        tosReliability,
+        tosMinCost,
+        tosInvalid
+    };
+    typedef enum Tos Tos;
+
+    enum Pending {
+        pendingInput,
+        pendingOutput,
+        pendingError
+    };
+    typedef enum Pending Pending;
+
+private:
+    // used by exception handlers....
+    mutable Error errid;
+    mutable const char *errstr;
+    mutable long syserr;
+
+    void setSocket(void);
+
+protected:
+    static socket_t dupSocket(socket_t s,Socket::State state);
+
+    static Mutex mutex;
+
+    mutable struct {
+        bool thrown: 1;
+        bool broadcast: 1;
+        bool route: 1;
+        bool keepalive: 1;
+        bool loopback: 1;
+        bool multicast: 1;
+        bool completion: 1;
+        bool linger: 1;
+        unsigned ttl: 8;
+    } flags;
+
+    State volatile state;
+
+    /**
+     * This service is used to throw all socket errors which usually
+     * occur during the socket constructor.
+     *
+     * @param error defined socket error id.
+     * @param err string or message to pass.
+     * @param systemError the system error# that caused the error
+     */
+    Error error(Error error, const char *err = NULL, long systemError = 0) const;
+
+    /**
+     * This service is used to throw application defined socket errors
+     * where the application specific error code is a string.
+     *
+     * @param err string or message to pass.
+     */
+    inline void error(const char *err) const
+        {error(errExtended, err);};
+
+    /**
+     * This service is used to turn the error handler on or off for
+     * "throwing" exceptions by manipulating the thrown flag.
+     *
+     * @param enable true to enable handler.
+     */
+    inline void setError(bool enable)
+        {flags.thrown = !enable;};
+
+    /**
+     * Used as the default destructor for ending a socket.  This
+     * will cleanly terminate the socket connection.  It is provided
+     * for use in derived virtual destructors.
+     */
+    void endSocket(void);
+
+    /**
+     * Used as a common handler for connection failure processing.
+     *
+     * @return correct failure code to apply.
+     */
+    Error connectError(void);
+
+    /**
+     * Set the send limit.
+     */
+    Error sendLimit(int limit = 2048);
+
+    /**
+     * Set thr receive limit.
+     */
+    Error receiveLimit(int limit = 1);
+
+    /**
+     * Set the send timeout for sending raw network data.
+     *
+     * @return errSuccess if set.
+     * @param timer value in millisec.
+     */
+    Error sendTimeout(timeout_t timer);
+
+    /**
+     * Receive timeout for receiving raw network data.
+     *
+     * @return errSuccess if set.
+     * @param timer value in milliseconds.
+     */
+    Error receiveTimeout(timeout_t timer);
+
+    /**
+     * Set the protocol stack network kernel send buffer size
+     * associated with the socket.
+     *
+     * @return errSuccess on success, or error.
+     * @param size of buffer in bytes.
+     */
+    Error sendBuffer(unsigned size);
+
+    /**
+     * Set the protocol stack network kernel receive buffer size
+     * associated with the socket.
+     *
+     * @return errSuccess on success, or error.
+     * @param size of buffer in bytes.
+     */
+    Error receiveBuffer(unsigned size);
+
+    /**
+     * Set the total protocol stack network kernel buffer size
+     * for both send and receive together.
+     *
+     * @return errSuccess on success
+     * @param size of buffer.
+     */
+    Error bufferSize(unsigned size);
+
+    /**
+     * Set the subnet broadcast flag for the socket.  This enables
+     * sending to a subnet and may require special image privileges
+     * depending on the operating system.
+     *
+     * @return 0 (errSuccess) on success, else error code.
+     * @param enable when set to true.
+     */
+    Error setBroadcast(bool enable);
+
+    /**
+     * Setting multicast binds the multicast interface used for
+     * the socket to the interface the socket itself has been
+     * implicitly bound to.  It is also used as a check flag
+     * to make sure multicast is enabled before multicast
+     * operations are used.
+     *
+     * @return 0 (errSuccess) on success, else error code.
+     * @param enable when set to true.
+     * @param family of protocol.
+     */
+    Error setMulticastByFamily(bool enable, Family family = IPV4);
+
+    /**
+     * Set the multicast loopback flag for the socket.  Loopback
+     * enables a socket to hear what it is sending.
+     *
+     * @return 0 (errSuccess) on success, else error code.
+     * @param enable when set to true.
+     * @param family of protocol.
+     */
+    Error setLoopbackByFamily(bool enable, Family family = IPV4);
+
+    /**
+     * Set the multicast time to live for a multicast socket.
+     *
+     * @return 0 (errSuccess) on success, else error code.
+     * @param ttl time to live.
+     * @param fam family of protocol.
+     */
+    Error setTimeToLiveByFamily(unsigned char ttl, Family fam = IPV4);
+
+    /**
+     * Join a multicast group.
+     *
+     * @return 0 (errSuccess) on success, else error code.
+     * @param ia address of multicast group to join.
+     */
+    Error join(const IPV4Multicast &ia);
+#ifdef  CCXX_IPV6
+    Error join(const IPV6Multicast &ia);
+#endif
+
+    /**
+     * Drop membership from a multicast group.
+     *
+     * @return 0 (errSuccess) on success, else error code.
+     * @param ia address of multicast group to drop.
+     */
+    Error drop(const IPV4Multicast &ia);
+#ifdef  CCXX_IPV6
+    Error drop(const IPV6Multicast &ia);
+#endif
+
+    /**
+     * Set the socket routing to indicate if outgoing messages
+     * should bypass normal routing (set false).
+     *
+     * @return 0 on success.
+     * @param enable normal routing when set to true.
+     */
+    Error setRouting(bool enable);
+
+    /**
+     * Enable/disable delaying packets (Nagle algorithm)
+     *
+     * @return 0 on success.
+     * @param enable disable Nagle algorithm when set to true.
+     */
+    Error setNoDelay(bool enable);
+
+    /**
+     * An unconnected socket may be created directly on the local
+     * machine.  Sockets can occupy both the internet domain (AF_INET)
+     * and UNIX socket domain (AF_UNIX) under unix.  The socket type
+     * (SOCK_STREAM, SOCK_DGRAM) and protocol may also be specified.
+     * If the socket cannot be created, an exception is thrown.
+     *
+     * @param domain socket domain to use.
+     * @param type base type and protocol family of the socket.
+     * @param protocol specific protocol to apply.
+     */
+    Socket(int domain, int type, int protocol = 0);
+
+    /**
+     * A socket object may be created from a file descriptor when that
+     * descriptor was created either through a socket() or accept()
+     * call.  This constructor is mostly for internal use.
+     *
+     * @param fd file descriptor of an already existing socket.
+     */
+    Socket(socket_t fd);
+
+    /**
+     * Create an inactive socket object for base constructors.
+     */
+    Socket();
+
+    /**
+     * A socket can also be constructed from an already existing
+     * Socket object. On POSIX systems, the socket file descriptor
+     * is dup()'d. On Win32, DuplicateHandle() is used.
+     *
+     * @param source of existing socket to clone.
+     */
+    Socket(const Socket &source);
+
+    /**
+     * Process a logical input line from a socket descriptor
+     * directly.
+     *
+     * @param buf pointer to string.
+     * @param len maximum length to read.
+     * @param timeout for pending data in milliseconds.
+     * @return number of bytes actually read.
+     */
+    ssize_t readLine(char *buf, size_t len, timeout_t timeout = 0);
+
+    /**
+     * Read in a block of len bytes with specific separator.  Can
+     * be zero, or any other char.  If \\n or \\r, it's treated just
+     * like a readLine().  Otherwise it looks for the separator.
+     *
+     * @param buf pointer to byte allocation.
+     * @param len maximum length to read.
+     * @param separator separator for a particular ASCII character
+     * @param t timeout for pending data in milliseconds.
+     * @return number of bytes actually read.
+     */
+    virtual ssize_t readData(void * buf,size_t len,char separator=0,timeout_t t=0);
+
+    /**
+     * Write a block of len bytes to socket.
+     *
+     * @param buf pointer to byte allocation.
+     * @param len maximum length to write.
+     * @param t timeout for pending data in milliseconds.
+     * @return number of bytes actually written.
+     */
+    virtual ssize_t writeData(const void* buf,size_t len,timeout_t t=0);
+
+public:
+    ~Socket();
+
+    /**
+     * Often used by a "catch" to fetch the last error of a thrown
+     * socket.
+     *
+     * @return error number of Error error.
+     */
+    inline Error getErrorNumber(void) const {return errid;}
+
+    /**
+     * Often used by a "catch" to fetch the user set error string
+     * of a thrown socket, but only if EXTENDED error codes are used.
+     *
+     * @return string for error message.
+     */
+    inline const char *getErrorString(void) const {return errstr;}
+
+    inline long getSystemError(void) const {return syserr;}
+
+    const char *getSystemErrorString(void) const;
+
+    /**
+     * Get the status of pending operations.  This can be used to
+     * examine if input or output is waiting, or if an error has
+     * occured on the descriptor.
+     *
+     * @return true if ready, false on timeout.
+     * @param pend ready check to perform.
+     * @param timeout in milliseconds, inf. if not specified.
+     */
+    virtual bool isPending(Pending pend, timeout_t timeout = TIMEOUT_INF);
+
+    /**
+     * See if a specific protocol family is available in the
+     * current runtime environment.
+     *
+     * @return true if family available.
+     */
+    static bool check(Family fam);
+
+    /**
+     * Operator based testing to see if a socket is currently
+     * active.
+     */
+    bool operator!() const;
+
+    operator bool() const;
+
+    /**
+     * Sockets may also be duplicated by the assignment operator.
+     */
+    Socket &operator=(const Socket &from);
+
+    /**
+     * May be used to examine the origin of data waiting in the
+     * socket receive queue.  This can tell a TCP server where pending
+     * "connect" requests are coming from, or a UDP socket where it's
+     * next packet arrived from.
+     *
+     * @param port ptr to port number of sender.
+     * @return host address, test with "isInetAddress()".
+     */
+    virtual IPV4Host getIPV4Sender(tpport_t *port = NULL) const;
+
+    inline IPV4Host getSender(tpport_t *port = NULL) const
+        {return getIPV4Sender(port);}
+
+#ifdef  CCXX_IPV6
+    virtual IPV6Host getIPV6Sender(tpport_t *port = NULL) const;
+#endif
+
+    /**
+     * Get the host address and port of the socket this socket
+     * is connected to.  If the socket is currently not in a
+     * connected state, then a host address of 0.0.0.0 is
+     * returned.
+     *
+     * @param port ptr to port number of remote socket.
+     * @return host address of remote socket.
+     */
+    IPV4Host getIPV4Peer(tpport_t *port = NULL) const;
+
+    inline IPV4Host getPeer(tpport_t *port = NULL) const
+        {return getIPV4Peer(port);}
+
+#ifdef  CCXX_IPV6
+    IPV6Host getIPV6Peer(tpport_t *port = NULL) const;
+#endif
+
+    /**
+     * Get the local address and port number this socket is
+     * currently bound to.
+     *
+     * @param port ptr to port number on local host.
+     * @return host address of interface this socket is bound to.
+     */
+    IPV4Host getIPV4Local(tpport_t *port = NULL) const;
+
+    inline IPV4Host getLocal(tpport_t *port = NULL) const
+        {return getIPV4Local(port);}
+
+#ifdef  CCXX_IPV6
+    IPV6Host getIPV6Local(tpport_t *port = NULL) const;
+#endif
+
+    /**
+     * Used to specify blocking mode for the socket.  A socket
+     * can be made non-blocking by setting setCompletion(false)
+     * or set to block on all access with setCompletion(true).
+     * I do not believe this form of non-blocking socket I/O is supported
+     * in winsock, though it provides an alternate asynchronous set of
+     * socket services.
+     *
+     * @param immediate mode specify socket I/O call blocking mode.
+     */
+    void setCompletion(bool immediate);
+
+    /**
+     * Enable lingering sockets on close.
+     *
+     * @param linger specify linger enable.
+     */
+    Error setLinger(bool linger);
+
+    /**
+     * Set the keep-alive status of this socket and if keep-alive
+     * messages will be sent.
+     *
+     * @return 0 on success.
+     * @param enable keep alive messages.
+     */
+    Error setKeepAlive(bool enable);
+
+    /**
+     * Set packet scheduling on platforms which support ip quality
+     * of service conventions.  This effects how packets in the
+     * queue are scheduled through the interface.
+     *
+     * @return 0 on success, error code on failure.
+     * @param service type of service enumerated type.
+     */
+    Error setTypeOfService(Tos service);
+
+    /**
+     * Can test to see if this socket is "connected", and hence
+     * whether a "catch" can safely call getPeer().  Of course,
+     * an unconnected socket will return a 0.0.0.0 address from
+     * getPeer() as well.
+     *
+     * @return true when socket is connected to a peer.
+     */
+    bool isConnected(void) const;
+
+    /**
+     * Test to see if the socket is at least operating or if it
+     * is mearly initialized.  "initialized" sockets may be the
+     * result of failed constructors.
+     *
+     * @return true if not in initial state.
+     */
+    bool isActive(void) const;
+
+    /**
+     * Return if broadcast has been enabled for the specified
+     * socket.
+     *
+     * @return true if broadcast socket.
+     */
+    inline bool isBroadcast(void) const
+        {return flags.broadcast;};
+
+    /**
+     * Return if socket routing is enabled.
+     *
+     * @return true if routing enabled.
+     */
+    inline bool isRouted(void) const
+        {return flags.route;};
+
+
+    inline struct in_addr getaddress(const IPV4Address &ia)
+        {return ia.getAddress();}
+
+#ifdef  CCXX_IPV6
+    inline struct in6_addr getaddress(const IPV6Address &ia)
+        {return ia.getAddress();}
+#endif
+
+};
+
+#if defined(CCXX_EXCEPTIONS)
+
+class __EXPORT SockException : public IOException
+{
+private:
+    Socket::Error _socketError;
+
+public:
+    inline SockException(const String &str, Socket::Error socketError, long systemError = 0) :
+        IOException(str, systemError), _socketError(socketError) {};
+
+    inline Socket::Error getSocketError() const
+    { return _socketError; }
+};
+
+#endif
+
+END_NAMESPACE
+
+#endif