added more or less meaningful descriptions when throwing SystemExceptions
[senf.git] / senf / Socket / Protocols / BSDAddressingPolicy.cc
1 // $Id$
2 //
3 // Copyright (C) 2006
4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
5 //
6 // The contents of this file are subject to the Fraunhofer FOKUS Public License
7 // Version 1.0 (the "License"); you may not use this file except in compliance
8 // with the License. You may obtain a copy of the License at 
9 // http://senf.berlios.de/license.html
10 //
11 // The Fraunhofer FOKUS Public License Version 1.0 is based on, 
12 // but modifies the Mozilla Public License Version 1.1.
13 // See the full license text for the amendments.
14 //
15 // Software distributed under the License is distributed on an "AS IS" basis, 
16 // WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 
17 // for the specific language governing rights and limitations under the License.
18 //
19 // The Original Code is Fraunhofer FOKUS code.
20 //
21 // The Initial Developer of the Original Code is Fraunhofer-Gesellschaft e.V. 
22 // (registered association), Hansastraße 27 c, 80686 Munich, Germany.
23 // All Rights Reserved.
24 //
25 // Contributor(s):
26 //   Stefan Bund <g0dil@berlios.de>
27
28 /** \file
29     \brief BSDAddressingPolicyMixin non-inline non-template implementation
30  */
31
32 #include "BSDAddressingPolicy.hh"
33 //#include "BSDAddressingPolicy.ih"
34
35 // Custom includes
36 #include <sys/socket.h>
37 #include <sys/types.h>
38 #include <senf/Utils/Exception.hh>
39
40 //#include "BSDAddressingPolicy.mpp"
41 #define prefix_
42 //-/////////////////////////////////////////////////////////////////////////////////////////////////
43
44 prefix_ void senf::BSDAddressingPolicyMixinBase::do_local(FileHandle const & handle,
45                                                                  struct sockaddr * addr,
46                                                                  socklen_t * len)
47 {
48     if (::getsockname(handle.fd(),addr,len) < 0)
49         SENF_THROW_SYSTEM_EXCEPTION("could not get sockname");
50 }
51
52 prefix_ void senf::BSDAddressingPolicyMixinBase::do_peer(FileHandle const & handle,
53                                                                 struct sockaddr * addr,
54                                                                 socklen_t * len)
55 {
56     if (::getpeername(handle.fd(),addr,len) < 0)
57         SENF_THROW_SYSTEM_EXCEPTION("could not get peername");
58 }
59
60 prefix_ void senf::BSDAddressingPolicyMixinBase::do_bind(FileHandle const & handle,
61                                                                 struct sockaddr const * addr,
62                                                                 socklen_t len)
63 {
64     if (::bind(handle.fd(),addr,len) < 0)
65         SENF_THROW_SYSTEM_EXCEPTION("could not bind");
66 }
67
68 prefix_ void senf::BSDAddressingPolicyMixinBase::do_connect(FileHandle const & handle,
69                                                                    struct sockaddr const * addr,
70                                                                    socklen_t len)
71 {
72     while(1) {
73         if (::connect(handle.fd(),addr,len) < 0)
74             switch (errno) {
75             case EINPROGRESS: {
76                 handle.waitWriteable();
77                 int err = 0;
78                 socklen_t len = sizeof(err);
79                 if (::getsockopt(handle.fd(),SOL_SOCKET,SO_ERROR,&err,&len) < 0)
80                     SENF_THROW_SYSTEM_EXCEPTION("::getsockopt(SO_ERROR)");
81                 if (err != 0)
82                     throw SystemException(err SENF_EXC_DEBUGINFO);
83                 return;
84             }
85             case EINTR:
86                 break;
87             default:
88                 SENF_THROW_SYSTEM_EXCEPTION("could not ::connect");
89             }
90         else
91             return;
92     }
93 }
94
95 //-/////////////////////////////////////////////////////////////////////////////////////////////////
96 #undef prefix_
97 //#include "BSDAddressingPolicy.mpp"
98
99 \f
100 // Local Variables:
101 // mode: c++
102 // fill-column: 100
103 // c-file-style: "senf"
104 // indent-tabs-mode: nil
105 // ispell-local-dictionary: "american"
106 // compile-command: "scons -u test"
107 // comment-column: 40
108 // End: