Emeric Vigier | 2f62582 | 2012-08-06 11:09:52 -0400 | [diff] [blame] | 1 | // Copyright (C) 1999-2005 Open Source Telecom Corporation. |
| 2 | // Copyright (C) 2006-2010 David Sugar, Tycho Softworks. |
| 3 | // |
| 4 | // This program is free software; you can redistribute it and/or modify |
| 5 | // it under the terms of the GNU General Public License as published by |
| 6 | // the Free Software Foundation; either version 2 of the License, or |
| 7 | // (at your option) any later version. |
| 8 | // |
| 9 | // This program is distributed in the hope that it will be useful, |
| 10 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | // GNU General Public License for more details. |
| 13 | // |
| 14 | // You should have received a copy of the GNU General Public License |
| 15 | // along with this program; if not, write to the Free Software |
| 16 | // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 17 | // |
| 18 | // As a special exception, you may use this file as part of a free software |
| 19 | // library without restriction. Specifically, if other files instantiate |
| 20 | // templates or use macros or inline functions from this file, or you compile |
| 21 | // this file and link it with other files to produce an executable, this |
| 22 | // file does not by itself cause the resulting executable to be covered by |
| 23 | // the GNU General Public License. This exception does not however |
| 24 | // invalidate any other reasons why the executable file might be covered by |
| 25 | // the GNU General Public License. |
| 26 | // |
| 27 | // This exception applies only to the code released under the name GNU |
| 28 | // Common C++. If you copy code from other releases into a copy of GNU |
| 29 | // Common C++, as the General Public License permits, the exception does |
| 30 | // not apply to the code that you add in this way. To avoid misleading |
| 31 | // anyone as to the status of such modified files, you must delete |
| 32 | // this exception notice from them. |
| 33 | // |
| 34 | // If you write modifications of your own for GNU Common C++, it is your choice |
| 35 | // whether to permit this exception to apply to your modifications. |
| 36 | // If you do not wish that, delete this exception notice. |
| 37 | // |
| 38 | |
| 39 | #include <cc++/config.h> |
| 40 | #include <cc++/export.h> |
| 41 | #include <cc++/thread.h> |
| 42 | #include <cc++/address.h> |
| 43 | #include <cc++/socket.h> |
| 44 | #include "private.h" |
| 45 | |
| 46 | #ifdef WIN32 |
| 47 | #include <fcntl.h> |
| 48 | #endif |
| 49 | #include <cerrno> |
| 50 | |
| 51 | #ifndef INADDR_LOOPBACK |
| 52 | #define INADDR_LOOPBACK (unsigned long)0x7f000001 |
| 53 | #endif |
| 54 | |
| 55 | #ifdef CCXX_NAMESPACES |
| 56 | namespace ost { |
| 57 | #endif |
| 58 | |
| 59 | UDPTransmit::UDPTransmit(const IPV4Address &ia, tpport_t port) : |
| 60 | UDPSocket(ia, port) |
| 61 | { |
| 62 | disconnect(); // assure not started live |
| 63 | shutdown(so, 0); |
| 64 | receiveBuffer(0); |
| 65 | } |
| 66 | |
| 67 | #ifdef CCXX_IPV6 |
| 68 | UDPTransmit::UDPTransmit(const IPV6Address &ia, tpport_t port) : |
| 69 | UDPSocket(ia, port) |
| 70 | { |
| 71 | disconnect(); // assure not started live |
| 72 | shutdown(so, 0); |
| 73 | receiveBuffer(0); |
| 74 | } |
| 75 | #endif |
| 76 | |
| 77 | UDPTransmit::UDPTransmit(Family family) : UDPSocket(family) |
| 78 | { |
| 79 | disconnect(); |
| 80 | shutdown(so, 0); |
| 81 | receiveBuffer(0); |
| 82 | } |
| 83 | |
| 84 | Socket::Error UDPTransmit::cConnect(const IPV4Address &ia, tpport_t port) |
| 85 | { |
| 86 | int len = sizeof(peer.ipv4); |
| 87 | |
| 88 | peer.ipv4.sin_family = AF_INET; |
| 89 | peer.ipv4.sin_addr = getaddress(ia); |
| 90 | peer.ipv4.sin_port = htons(port); |
| 91 | // Win32 will crash if you try to connect to INADDR_ANY. |
| 92 | if ( INADDR_ANY == peer.ipv4.sin_addr.s_addr ) |
| 93 | peer.ipv4.sin_addr.s_addr = INADDR_LOOPBACK; |
| 94 | if(::connect(so, (sockaddr *)&peer.ipv4, len)) |
| 95 | return connectError(); |
| 96 | return errSuccess; |
| 97 | } |
| 98 | |
| 99 | |
| 100 | #ifdef CCXX_IPV6 |
| 101 | |
| 102 | Socket::Error UDPTransmit::connect(const IPV6Address &ia, tpport_t port) |
| 103 | { |
| 104 | int len = sizeof(peer.ipv6); |
| 105 | |
| 106 | peer.ipv6.sin6_family = AF_INET6; |
| 107 | peer.ipv6.sin6_addr = getaddress(ia); |
| 108 | peer.ipv6.sin6_port = htons(port); |
| 109 | // Win32 will crash if you try to connect to INADDR_ANY. |
| 110 | if(!memcmp(&peer.ipv6.sin6_addr, &in6addr_any, sizeof(in6addr_any))) |
| 111 | memcpy(&peer.ipv6.sin6_addr, &in6addr_loopback, |
| 112 | sizeof(in6addr_loopback)); |
| 113 | if(::connect(so, (struct sockaddr *)&peer.ipv6, len)) |
| 114 | return connectError(); |
| 115 | return errSuccess; |
| 116 | } |
| 117 | #endif |
| 118 | |
| 119 | Socket::Error UDPTransmit::connect(const IPV4Host &ia, tpport_t port) |
| 120 | { |
| 121 | if(isBroadcast()) |
| 122 | setBroadcast(false); |
| 123 | |
| 124 | return cConnect((IPV4Address)ia,port); |
| 125 | } |
| 126 | |
| 127 | Socket::Error UDPTransmit::connect(const IPV4Broadcast &subnet, tpport_t port) |
| 128 | { |
| 129 | if(!isBroadcast()) |
| 130 | setBroadcast(true); |
| 131 | |
| 132 | return cConnect((IPV4Address)subnet,port); |
| 133 | } |
| 134 | |
| 135 | Socket::Error UDPTransmit::connect(const IPV4Multicast &group, tpport_t port) |
| 136 | { |
| 137 | Error err; |
| 138 | if(!( err = UDPSocket::setMulticast(true) )) |
| 139 | return err; |
| 140 | |
| 141 | return cConnect((IPV4Address)group,port); |
| 142 | } |
| 143 | |
| 144 | #ifdef CCXX_IPV6 |
| 145 | Socket::Error UDPTransmit::connect(const IPV6Multicast &group, tpport_t port) |
| 146 | { |
| 147 | Error error; |
| 148 | if(!( error = UDPSocket::setMulticast(true) )) |
| 149 | return error; |
| 150 | |
| 151 | return connect((IPV6Address)group,port); |
| 152 | } |
| 153 | #endif |
| 154 | |
| 155 | UDPReceive::UDPReceive(const IPV4Address &ia, tpport_t port) : |
| 156 | UDPSocket(ia, port) |
| 157 | { |
| 158 | shutdown(so, 1); |
| 159 | sendBuffer(0); |
| 160 | } |
| 161 | |
| 162 | #ifdef CCXX_IPV6 |
| 163 | UDPReceive::UDPReceive(const IPV6Address &ia, tpport_t port) : |
| 164 | UDPSocket(ia, port) |
| 165 | { |
| 166 | shutdown(so, 1); |
| 167 | sendBuffer(0); |
| 168 | } |
| 169 | #endif |
| 170 | |
| 171 | Socket::Error UDPReceive::connect(const IPV4Host &ia, tpport_t port) |
| 172 | { |
| 173 | int len = sizeof(peer.ipv4); |
| 174 | |
| 175 | peer.ipv4.sin_family = AF_INET; |
| 176 | peer.ipv4.sin_addr = getaddress(ia); |
| 177 | peer.ipv4.sin_port = htons(port); |
| 178 | // Win32 will crash if you try to connect to INADDR_ANY. |
| 179 | if ( INADDR_ANY == peer.ipv4.sin_addr.s_addr ) |
| 180 | peer.ipv4.sin_addr.s_addr = INADDR_LOOPBACK; |
| 181 | if(::connect(so, (struct sockaddr *)&peer.ipv4, len)) |
| 182 | return connectError(); |
| 183 | return errSuccess; |
| 184 | } |
| 185 | |
| 186 | #ifdef CCXX_IPV6 |
| 187 | Socket::Error UDPReceive::connect(const IPV6Host &ia, tpport_t port) |
| 188 | { |
| 189 | int len = sizeof(peer.ipv6); |
| 190 | |
| 191 | peer.ipv6.sin6_family = AF_INET6; |
| 192 | peer.ipv6.sin6_addr = getaddress(ia); |
| 193 | peer.ipv6.sin6_port = htons(port); |
| 194 | // Win32 will crash if you try to connect to INADDR_ANY. |
| 195 | if(!memcmp(&peer.ipv6.sin6_addr, &in6addr_any, sizeof(in6addr_any))) |
| 196 | memcpy(&peer.ipv6.sin6_addr, &in6addr_loopback, sizeof(in6addr_loopback)); |
| 197 | if(::connect(so, (sockaddr *)&peer.ipv6, len)) |
| 198 | return connectError(); |
| 199 | return errSuccess; |
| 200 | } |
| 201 | #endif |
| 202 | |
| 203 | UDPDuplex::UDPDuplex(const IPV4Address &bind, tpport_t port) : |
| 204 | UDPTransmit(bind, port + 1), UDPReceive(bind, port) |
| 205 | {} |
| 206 | |
| 207 | #ifdef CCXX_IPV6 |
| 208 | UDPDuplex::UDPDuplex(const IPV6Address &bind, tpport_t port) : |
| 209 | UDPTransmit(bind, port + 1), UDPReceive(bind, port) |
| 210 | {} |
| 211 | #endif |
| 212 | |
| 213 | Socket::Error UDPDuplex::connect(const IPV4Host &host, tpport_t port) |
| 214 | { |
| 215 | Error rtn = UDPTransmit::connect(host, port); |
| 216 | if(rtn) { |
| 217 | UDPTransmit::disconnect(); |
| 218 | UDPReceive::disconnect(); |
| 219 | return rtn; |
| 220 | } |
| 221 | return UDPReceive::connect(host, port + 1); |
| 222 | } |
| 223 | |
| 224 | #ifdef CCXX_IPV6 |
| 225 | Socket::Error UDPDuplex::connect(const IPV6Host &host, tpport_t port) |
| 226 | { |
| 227 | Error rtn = UDPTransmit::connect(host, port); |
| 228 | if(rtn) { |
| 229 | UDPTransmit::disconnect(); |
| 230 | UDPReceive::disconnect(); |
| 231 | return rtn; |
| 232 | } |
| 233 | return UDPReceive::connect(host, port + 1); |
| 234 | } |
| 235 | #endif |
| 236 | |
| 237 | Socket::Error UDPDuplex::disconnect(void) |
| 238 | { |
| 239 | Error rtn = UDPTransmit::disconnect(); |
| 240 | Error rtn2 = UDPReceive::disconnect(); |
| 241 | if (rtn) return rtn; |
| 242 | return rtn2; |
| 243 | } |
| 244 | |
| 245 | #ifdef CCXX_NAMESPACES |
| 246 | } |
| 247 | #endif |