4 // Fraunhofer Institute for Open Communication Systems (FOKUS)
5 // Competence Center NETwork research (NET), St. Augustin, GERMANY
6 // Stefan Bund <g0dil@berlios.de>
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.
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.
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.
24 \brief INet4Address non-inline non-template implementation */
26 #include "INet4Address.hh"
27 //#include "INet4Address.ih"
30 #include <arpa/inet.h>
32 #include <sys/socket.h>
33 #include <boost/lexical_cast.hpp>
34 #if defined(_REENTRANT) && !defined(__GLIBC__)
35 #include <boost/thread/mutex.hpp>
37 #include <senf/Socket/Protocols/AddressExceptions.hh>
39 //#include "INet4Address.mpp"
41 ///////////////////////////////cc.p////////////////////////////////////////
43 ///////////////////////////////////////////////////////////////////////////
44 // senf::INet4Address::INet4Address
46 prefix_ senf::INet4Address::INet4Address(address_type value)
48 iref() = htonl(value);
51 prefix_ senf::INet4Address senf::INet4Address::from_string(std::string const & s)
54 if (::inet_pton(AF_INET,s.c_str(),&ina) > 0)
55 return senf::INet4Address::from_inaddr(ina.s_addr);
58 throw AddressSyntaxException() << ": empty string";
62 // If available, we use the reentrant GNU variant. This has the additional advantage, that we
63 // can explicitly ask for IPv4 addresses
67 struct hostent entbuf;
69 struct hostent * ent (0);
70 ::gethostbyname2_r(s.c_str(), AF_INET, &entbuf, buffer, sizeof(buffer), &ent, &herr);
75 static boost::mutex mutex;
76 boost::mutex::scoped_lock lock(mutex);
78 struct hostent * ent (::gethostbyname(s.c_str()));
84 throw UnknownHostnameException(s);
85 if (ent->h_addrtype != AF_INET)
86 throw UnknownHostnameException(s);
88 // We are only interested in the first address ...
89 return senf::INet4Address::from_inaddr(
90 reinterpret_cast<in_addr*>(*(ent->h_addr_list))->s_addr);
93 prefix_ bool senf::INet4Address::local()
96 address_type l (address());
98 (l & 0xFF000000u) == 0x0A000000u ||
99 (l & 0xFFF00000u) == 0xAC100000u ||
100 (l & 0xFFFF0000u) == 0xA9FE0000u ||
101 (l & 0xFFFF0000u) == 0xC0A80000u;
104 prefix_ bool senf::INet4Address::loopback()
107 return (address() & 0xFF000000u) == 0x7F000000u;
110 prefix_ bool senf::INet4Address::multicast()
113 return (address() & 0xF0000000u) == 0xE0000000u;
116 prefix_ senf::INet4Address::address_type senf::INet4Address::address()
119 return ntohl(iref());
122 senf::INet4Address const senf::INet4Address::None;
123 senf::INet4Address const senf::INet4Address::Loopback (0x7F000001u);
124 senf::INet4Address const senf::INet4Address::Broadcast (0xFFFFFFFFu);
126 ///////////////////////////////////////////////////////////////////////////
127 // senf::INet4Network
129 prefix_ senf::INet4Network::INet4Network(std::string const & s)
131 std::string::size_type i (s.find('/'));
132 if (i == std::string::npos)
133 throw AddressSyntaxException(s);
135 prefix_len_ = boost::lexical_cast<unsigned>(std::string(s,i+1));
136 } catch (boost::bad_lexical_cast const &) {
137 throw AddressSyntaxException(s);
139 address_ = INet4Address(INet4Address::from_string(std::string(s, 0, i)).address() & mask());
142 ///////////////////////////////////////////////////////////////////////////
145 prefix_ std::ostream & senf::operator<<(std::ostream & os, INet4Address const & addr)
149 ina.s_addr = addr.inaddr();
150 ::inet_ntop(AF_INET,&ina,buffer,16);
156 prefix_ std::istream & senf::operator>>(std::istream & is, INet4Address & addr)
162 addr = INet4Address::from_string(s);
164 catch (AddressException &) {
165 is.setstate(std::ios::failbit);
170 prefix_ std::istream & senf::operator>>(std::istream & is, INet4Network & addr)
176 addr = INet4Network(s);
178 catch (AddressException &) {
179 is.setstate(std::ios::failbit);
184 ///////////////////////////////cc.e////////////////////////////////////////
186 //#include "INet4Address.mpp"
192 // comment-column: 40
193 // c-file-style: "senf"
194 // indent-tabs-mode: nil
195 // ispell-local-dictionary: "american"
196 // compile-command: "scons -u test"