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   except in compliance with the License.  You may obtain a copy of
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      http://www.apache.org/licenses/LICENSE-2.0

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.. include:: ../../../common.defs

.. default-domain:: cpp

TSHttpSsnClientAddrGet
**********************

Synopsis
========

.. code-block:: cpp

    #include <ts/ts.h>

.. function:: struct sockaddr const * TSHttpSsnClientAddrGet(TSHttpSsn ssnp)

Description
===========

Return the socket address of the client for the HTTP session :arg:`ssnp`.
The returned pointer references storage owned by |TS| and is only valid
for the duration of the current callback; plugins that need to keep the
value across callbacks must copy it into their own storage.

This is the session-level counterpart of :func:`TSHttpTxnClientAddrGet`
and is appropriate when the caller has a session handle but no specific
transaction (for example, in session-level hooks).

If the listener that accepted the connection has the ``pp-clnt`` flag set
and a PROXY Protocol header was successfully parsed, the returned address
is the PROXY-Protocol source address rather than the immediate TCP peer.
Without ``pp-clnt`` the returned address is the immediate TCP peer even
when PROXY Protocol is enabled. See :ref:`Proxy Protocol <proxy-protocol>`
for the full enumeration of surfaces gated by ``pp-clnt``.

Return Value
============

A pointer to the client address, or ``nullptr`` if :arg:`ssnp` is invalid
or no client address is available.

See Also
========

:manpage:`TSAPI(3ts)`,
:func:`TSHttpTxnClientAddrGet`,
:func:`TSNetVConnClientAddrGet`