MACAddress.cxx
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上传日期:2013-07-25
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- /* ====================================================================
- * The Vovida Software License, Version 1.0
- *
- * Copyright (c) 2000 Vovida Networks, Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The names "VOCAL", "Vovida Open Communication Application Library",
- * and "Vovida Open Communication Application Library (VOCAL)" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact vocal@vovida.org.
- *
- * 4. Products derived from this software may not be called "VOCAL", nor
- * may "VOCAL" appear in their name, without prior written
- * permission of Vovida Networks, Inc.
- *
- * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND
- * NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT SHALL VOVIDA
- * NETWORKS, INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT DAMAGES
- * IN EXCESS OF $1,000, NOR FOR ANY INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
- * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
- * DAMAGE.
- *
- * ====================================================================
- *
- * This software consists of voluntary contributions made by Vovida
- * Networks, Inc. and many individuals on behalf of Vovida Networks,
- * Inc. For more information on Vovida Networks, Inc., please see
- * <http://www.vovida.org/>.
- *
- */
- static const char* const MACAddress_cxx_Version =
- "$Id: MACAddress.cxx,v 1.5 2000/12/18 23:49:31 bko Exp $";
- #include "MACAddress.hxx"
- #include "Socket.hxx"
- #include <sys/ioctl.h>
- #include <sys/socket.h>
- #include <netinet/in.h>
- #include <net/if.h>
- #include <unistd.h>
- #include <string.h>
- using Vocal::Transport::MACAddress;
- using Vocal::Transport::Socket;
- MACAddress::MACAddress()
- : high_(0),
- low_(0)
- {
- getMACAddress(socket(AF_INET, SOCK_DGRAM, IPPROTO_IP));
- }
- MACAddress::MACAddress(const Socket & sock)
- {
- getMACAddress(sock.getFD());
- }
- MACAddress::~MACAddress()
- {
- }
- u_int32_t
- MACAddress::high()
- {
- return ( high_ );
- }
- u_int32_t
- MACAddress::low()
- {
- return ( low_ );
- }
- void
- MACAddress::getMACAddress(int sock)
- {
- #if !defined(SIOCGIFHWADDR) && !defined(SIOCGENADDR)
- return;
- #else
- if ( sock < 0 )
- {
- return;
- }
- ifconf ifc;
- char buf[1024];
- memset(buf, 0, sizeof(buf));
- ifc.ifc_len = sizeof(buf);
- ifc.ifc_buf = buf;
- if ( ioctl(sock, SIOCGIFCONF, (char *)&ifc) < 0)
- {
- close(sock);
- return;
- }
-
- ifreq ifr, *ifrp;
- int size = ifc.ifc_len;
- u_int8_t * a = 0;
- for (int i = 0; i < size; i += sizeof(ifreq) )
- {
- ifrp = (ifreq *)((char *)ifc.ifc_buf + i);
-
- strncpy(ifr.ifr_name, ifrp->ifr_name, IFNAMSIZ);
- #if defined(SIOCGIFHWADDR)
- if ( ioctl(sock, SIOCGIFHWADDR, &ifr) < 0 )
- {
- continue;
- }
- a = (unsigned char *)(&ifr.ifr_hwaddr.sa_data);
- #elif defined(SIOCGENADDR)
- if ( ioctl(sock, SIOCGENADDR, &ifr) < 0 )
- {
- continue;
- }
- a = (unsigned char *)ifr.ifr_enaddr;
- #endif
- if ( !a[0] && !a[1] && !a[2] && !a[3] && !a[4] && !a[5] )
- {
- continue;
- }
- high_ = ( a[0] << 8 ) + a[1];
- low_ = ( a[2] << 24 ) + ( a[3] << 16 )
- + ( a[4] << 8 ) + a[5];
-
- }
- close(sock);
- #endif // !defined(SIOCGIFHWADDR) || !defined(SIOCGENADDR)
- }