[Boost-bugs] [Boost C++ Libraries] #8613: [Windows] boost::asio::ip::tcp::socket::async_write() WriteHandler gets a boost::system::error_code with a NULL category pointer on success

Subject: [Boost-bugs] [Boost C++ Libraries] #8613: [Windows] boost::asio::ip::tcp::socket::async_write() WriteHandler gets a boost::system::error_code with a NULL category pointer on success
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2013-05-23 23:22:36

#8613: [Windows] boost::asio::ip::tcp::socket::async_write() WriteHandler gets a
boost::system::error_code with a NULL category pointer on success
----------------------------------------------+-----------------------------
 Reporter:  Segev Finer <segev208@…>          |       Owner:  chris_kohlhoff
     Type:  Bugs                              |      Status:  new           
Milestone:  To Be Determined                  |   Component:  asio          
  Version:  Boost 1.53.0                      |    Severity:  Problem       
 Keywords:                                    |  
----------------------------------------------+-----------------------------
 The `boost::asio::ip::tcp::socket::async_write()` WriteHandler gets a
 `boost::system::error_code` with a `NULL` category pointer on success.

 This is essentially an invalid `boost::system::error_code` that will cause
 an access violation when you try to print it has the code doesn't expect
 the category pointer to be `NULL`.

 `boost::system::error_code` is printed like so:
 {{{#!c++
 os << ec.category().name() << ':' << ec.value();
 }}}
 Which throws an access violation when `ec.category()` tries to dereference
 the unexpected NULL category pointer which shouldn't happen.

 Code that reproduces this problem:
 {{{#!c++
 #include <iostream>
 #include <boost/asio.hpp>
 #include <boost/bind.hpp>

 using boost::asio::ip::tcp;

 void write_handler(const boost::system::error_code & ec)
 {
         std::cout << ec << std::endl;
 }

 int main(void)
 {
         boost::asio::io_service io_service;

         tcp::resolver resolver(io_service);
         tcp::resolver::query query("www.google.com", "80");
         tcp::resolver::iterator endpoint_iterator =
 resolver.resolve(query);

         boost::asio::ip::tcp::socket socket(io_service);
         boost::asio::connect(socket, endpoint_iterator);

         socket.async_write_some(boost::asio::null_buffers(),
 boost::bind(write_handler, boost::asio::placeholders::error));

         io_service.run();
 }
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/8613>
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