Hi, thanks for the quick answer. By port number and ip address of an acceptor" I mean the address and the port of the ip interface the acceptor is listening on. In most of the case I've worked on, I used the specify the port I wanted to listen on, though for this special case, I do not want the acceptor to specify a port number. Then when I do: boost::asio::ip::tcp::acceptor acceptor(m_IoService); when I call boost::asio::ip::tcp::endpoint endpoint = acceptor.local_endpoint(); I get an exception as follow: "The file handle supplied is not valid" I need to know the ip address and the port number fo the acceptor before calling the accept method. Any thoughts? Thanks On 8/7/08, Igor R wrote:

What do you mean by "port number and ip address of an acceptor"? If you want to know the address of your local "endpoint", then you can get it:

boost::asio::ip::tcp::endpoint endpoint = acceptor.local_endpoint();

then get its address and port: endpoint.address(); endpoint.port();

But if you want to get the address of your peer, then you can get it from accept() or async_accept() -- please see their descriptions.

P.S. IMHO, asio has *very* clear, readable, and useful manual, and I'm sure you could find there aswers to most of your questions: http://www.boost.org/doc/libs/1_35_0/doc/html/boost_asio.html

2008/8/7, Jean-Sebastien Stoezel :

...

Hi,

How to get the port number and ip address of an acceptor?

I tried this:

boost::asio::ip::tcp::acceptor acceptor(m_IoService); boost::asio::ip::tcp::acceptor myEndPoint(m_IoService);

acceptor.get_option(myEndPoint);

But this does not compile, Iget a couple of errors in win_iocp_socket_service.hpp like this one:

Error 8 error C2039: 'level' : is not a member of 'boost::asio::basic_socket_acceptor<Protocol>'

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