Line data    Source code

       1             : /*
       2             :     Copyright (c) 2007-2016 Contributors as noted in the AUTHORS file
       3             : 
       4             :     This file is part of libzmq, the ZeroMQ core engine in C++.
       5             : 
       6             :     libzmq is free software; you can redistribute it and/or modify it under
       7             :     the terms of the GNU Lesser General Public License (LGPL) as published
       8             :     by the Free Software Foundation; either version 3 of the License, or
       9             :     (at your option) any later version.
      10             : 
      11             :     As a special exception, the Contributors give you permission to link
      12             :     this library with independent modules to produce an executable,
      13             :     regardless of the license terms of these independent modules, and to
      14             :     copy and distribute the resulting executable under terms of your choice,
      15             :     provided that you also meet, for each linked independent module, the
      16             :     terms and conditions of the license of that module. An independent
      17             :     module is a module which is not derived from or based on this library.
      18             :     If you modify this library, you must extend this exception to your
      19             :     version of the library.
      20             : 
      21             :     libzmq is distributed in the hope that it will be useful, but WITHOUT
      22             :     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
      23             :     FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
      24             :     License for more details.
      25             : 
      26             :     You should have received a copy of the GNU Lesser General Public License
      27             :     along with this program.  If not, see <http://www.gnu.org/licenses/>.
      28             : */
      29             : 
      30             : #include "precompiled.hpp"
      31             : #include "ipc_address.hpp"
      32             : 
      33             : #if !defined ZMQ_HAVE_WINDOWS && !defined ZMQ_HAVE_OPENVMS
      34             : 
      35             : #include "err.hpp"
      36             : 
      37             : #include <string>
      38             : #include <sstream>
      39             : 
      40         126 : zmq::ipc_address_t::ipc_address_t ()
      41             : {
      42         126 :     memset (&address, 0, sizeof address);
      43         126 : }
      44             : 
      45          63 : zmq::ipc_address_t::ipc_address_t (const sockaddr *sa, socklen_t sa_len)
      46             : {
      47          63 :     zmq_assert (sa && sa_len > 0);
      48             : 
      49          63 :     memset (&address, 0, sizeof address);
      50          63 :     if (sa->sa_family == AF_UNIX)
      51          63 :         memcpy(&address, sa, sa_len);
      52          63 : }
      53             : 
      54         189 : zmq::ipc_address_t::~ipc_address_t ()
      55             : {
      56         189 : }
      57             : 
      58         126 : int zmq::ipc_address_t::resolve (const char *path_)
      59             : {
      60         126 :     if (strlen (path_) >= sizeof address.sun_path) {
      61           0 :         errno = ENAMETOOLONG;
      62           0 :         return -1;
      63             :     }
      64         126 :     if (path_ [0] == '@' && !path_ [1]) {
      65           0 :         errno = EINVAL;
      66           0 :         return -1;
      67             :     }
      68             : 
      69         126 :     address.sun_family = AF_UNIX;
      70         126 :     strcpy (address.sun_path, path_);
      71             :     /* Abstract sockets start with '\0' */
      72         126 :     if (path_ [0] == '@')
      73           6 :         *address.sun_path = '\0';
      74             :     return 0;
      75             : }
      76             : 
      77         254 : int zmq::ipc_address_t::to_string (std::string &addr_)
      78             : {
      79         254 :     if (address.sun_family != AF_UNIX) {
      80             :         addr_.clear ();
      81           0 :         return -1;
      82             :     }
      83             : 
      84         254 :     std::stringstream s;
      85         254 :     s << "ipc://";
      86         254 :     if (!address.sun_path [0] && address.sun_path [1])
      87          12 :        s << "@" << address.sun_path + 1;
      88             :     else
      89         242 :        s << address.sun_path;
      90         254 :     addr_ = s.str ();
      91         254 :     return 0;
      92             : }
      93             : 
      94         117 : const sockaddr *zmq::ipc_address_t::addr () const
      95             : {
      96         117 :     return (sockaddr*) &address;
      97             : }
      98             : 
      99         117 : socklen_t zmq::ipc_address_t::addrlen () const
     100             : {
     101         117 :     if (!address.sun_path [0] && address.sun_path [1])
     102           6 :         return (socklen_t) strlen (address.sun_path + 1) + sizeof (sa_family_t) + 1;
     103             :     return (socklen_t) sizeof address;
     104             : }
     105             : 
     106             : #endif