Console: Implement BSDSocketAddress and BSDAddressingPolicy
[senf.git] / Socket / Protocols / INet / INetAddressing.cc
1 // $Id$
2 //
3 // Copyright (C) 2006
4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
5 // Competence Center NETwork research (NET), St. Augustin, GERMANY
6 //     Stefan Bund <g0dil@berlios.de>
7 //
8 // This program is free software; you can redistribute it and/or modify
9 // it under the terms of the GNU General Public License as published by
10 // the Free Software Foundation; either version 2 of the License, or
11 // (at your option) any later version.
12 //
13 // This program is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 // GNU General Public License for more details.
17 //
18 // You should have received a copy of the GNU General Public License
19 // along with this program; if not, write to the
20 // Free Software Foundation, Inc.,
21 // 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
22
23 /** \file
24     \brief INet[46]Address and INet[46]AddressingPolicy non-inline non-template implementation
25  */
26
27 #include "INetAddressing.hh"
28 //#include "INetAddressing.ih"
29
30 // Custom includes
31 #include <sstream>
32 #include <string.h>
33 #include <sys/socket.h>
34 #include <net/if.h>
35 #include <boost/lexical_cast.hpp>
36 #include <boost/regex.hpp>
37 #include "../../../Utils/senfassert.hh"
38
39 //#include "INetAddressing.mpp"
40 #define prefix_
41 ///////////////////////////////cc.p////////////////////////////////////////
42
43 ///////////////////////////////////////////////////////////////////////////
44 // senf::INet4SocketAddress
45
46 prefix_ senf::INet4SocketAddress::INet4SocketAddress(std::string const & addr)
47     : BSDSocketAddress (sizeof(sockaddr_in), AF_INET)
48 {
49     unsigned portIx = addr.find(':');
50     try {
51         port( boost::lexical_cast< ::u_int16_t >(portIx == std::string::npos 
52                                                  ? addr : std::string(addr,portIx+1)) );
53     }
54     catch (boost::bad_lexical_cast const &) {
55         throw AddressSyntaxException() << "invalid port number";
56     }
57     if (portIx != std::string::npos)
58         address( INet4Address::from_string(std::string(addr,0,portIx)) );
59 }
60
61 prefix_ senf::INet4SocketAddress::INet4SocketAddress(INet4Address const & addr, unsigned p)
62     : BSDSocketAddress (sizeof(sockaddr_in), AF_INET)
63 {
64     address(addr);
65     port(p);
66 }
67
68 prefix_ senf::INet4SocketAddress::INet4SocketAddress(unsigned p)
69     : BSDSocketAddress (sizeof(sockaddr_in), AF_INET)
70 {
71     port(p);
72 }
73
74 ///////////////////////////////////////////////////////////////////////////
75 // senf::INet6SocketAddress
76
77 prefix_ senf::INet6SocketAddress::INet6SocketAddress(std::string const & addr,
78                                                      INet6Address::Resolve_t resolve)
79     : BSDSocketAddress (sizeof(sockaddr_in6), AF_INET6)
80 {
81     // Format of addr: "[" address [ "%" interface ] "]" ":" port
82     //             or: host ":" port
83     //             or: port
84
85     static boost::regex const addressRx ("(?:(?:\\[([^%]+)(?:%(.+))?\\]|(.+)):)?([0-9]+)");
86     // Subexpression numbers:
87     enum { Address  = 1,
88            ZoneId   = 2,
89            Hostname = 3,
90            Port     = 4 };
91     
92     boost::smatch match;
93     if (! regex_match(addr, match, addressRx))
94         throw AddressSyntaxException();
95
96     if (match[ZoneId].matched)
97         assignIface(match[ZoneId]);
98
99     sockaddr_.sin6_port = htons(boost::lexical_cast<boost::uint16_t>(match[Port]));
100
101     if (match[Address].matched || match[Hostname].matched) {
102         INet6Address a (INet6Address::from_string(
103                             match[Address].matched ? match[Address] : match[Hostname],
104                             resolve));
105         std::copy(a.begin(), a.end(), &sockaddr_.sin6_addr.s6_addr[0]);
106     }
107 }
108
109 prefix_ std::string senf::INet6SocketAddress::iface()
110     const
111 {
112     if (sockaddr_.sin6_scope_id == 0)
113         return "";
114     char buffer[IFNAMSIZ];
115 #ifdef SENF_DEBUG
116     SENF_ASSERT( if_indextoname(sockaddr_.sin6_scope_id,buffer) );
117 #else
118     if_indextoname(sockaddr_.sin6_scope_id,buffer);
119 #endif
120     return std::string(buffer);
121 }
122
123 prefix_ void senf::INet6SocketAddress::assignIface(std::string const & iface)
124 {
125     if (iface.empty())
126         sockaddr_.sin6_scope_id = 0;
127     else {
128         sockaddr_.sin6_scope_id = if_nametoindex(iface.c_str());
129         if (sockaddr_.sin6_scope_id == 0)
130             throw AddressSyntaxException();
131     }
132 }
133
134 ///////////////////////////////cc.e////////////////////////////////////////
135 #undef prefix_
136 //#include "INetAddressing.mpp"
137
138 \f
139 // Local Variables:
140 // mode: c++
141 // fill-column: 100
142 // c-file-style: "senf"
143 // indent-tabs-mode: nil
144 // ispell-local-dictionary: "american"
145 // compile-command: "scons -u test"
146 // comment-column: 40
147 // End: