- Fix for IP Address discovery and broadcasting UDP servers
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cdb820a8e8
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@ -459,9 +459,11 @@ string getNetworkInterfaceBroadcastAddress(string ipAddress)
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#if defined(USE_GETIFADDRS)
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// BSD-style implementation
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SystemFlags::OutputDebug(SystemFlags::debugNetwork,"In [%s::%s Line: %d]\n",__FILE__,__FUNCTION__,__LINE__);
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struct ifaddrs * ifap;
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if (getifaddrs(&ifap) == 0)
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{
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SystemFlags::OutputDebug(SystemFlags::debugNetwork,"In [%s::%s Line: %d]\n",__FILE__,__FUNCTION__,__LINE__);
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struct ifaddrs * p = ifap;
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while(p)
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{
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@ -470,13 +472,17 @@ string getNetworkInterfaceBroadcastAddress(string ipAddress)
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uint32 dstAddr = SockAddrToUint32(p->ifa_dstaddr);
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if (ifaAddr > 0)
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{
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SystemFlags::OutputDebug(SystemFlags::debugNetwork,"In [%s::%s Line: %d]\n",__FILE__,__FUNCTION__,__LINE__);
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char ifaAddrStr[32]; Inet_NtoA(ifaAddr, ifaAddrStr);
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char maskAddrStr[32]; Inet_NtoA(maskAddr, maskAddrStr);
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char dstAddrStr[32]; Inet_NtoA(dstAddr, dstAddrStr);
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//printf(" Found interface: name=[%s] desc=[%s] address=[%s] netmask=[%s] broadcastAddr=[%s]\n", p->ifa_name, "unavailable", ifaAddrStr, maskAddrStr, dstAddrStr);
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if(strcmp(ifaAddrStr,ipAddress.c_str()) == 0) {
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if(strcmp(ifaAddrStr,ipAddress.c_str()) == 0) {
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broadCastAddress = dstAddrStr;
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}
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}
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SystemFlags::OutputDebug(SystemFlags::debugNetwork,"In [%s::%s Line: %d] ifaAddrStr [%s], maskAddrStr [%s], dstAddrStr[%s], ipAddress [%s], broadCastAddress [%s]\n",__FILE__,__FUNCTION__,__LINE__,ifaAddrStr,maskAddrStr,dstAddrStr,ipAddress.c_str(),broadCastAddress.c_str());
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}
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p = p->ifa_next;
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}
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@ -600,46 +606,56 @@ std::vector<std::string> Socket::getLocalIPAddressList() {
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/* get my host name */
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char myhostname[101]="";
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gethostname(myhostname,100);
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char myhostaddr[101] = "";
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struct hostent* myhostent = gethostbyname(myhostname);
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if(myhostent) {
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// get all host IP addresses (Except for loopback)
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char myhostaddr[101] = "";
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int ipIdx = 0;
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while (myhostent->h_addr_list[ipIdx] != 0) {
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sprintf(myhostaddr, "%s",inet_ntoa(*(struct in_addr *)myhostent->h_addr_list[ipIdx]));
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//printf("%s\n",myhostaddr);
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SystemFlags::OutputDebug(SystemFlags::debugNetwork,"In [%s::%s Line: %d] myhostaddr = [%s]\n",__FILE__,__FUNCTION__,__LINE__,myhostaddr);
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// get all host IP addresses (Except for loopback)
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char myhostaddr[101] = "";
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int ipIdx = 0;
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while (myhostent->h_addr_list[ipIdx] != 0) {
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sprintf(myhostaddr, "%s",inet_ntoa(*(struct in_addr *)myhostent->h_addr_list[ipIdx]));
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//printf("%s\n",myhostaddr);
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SystemFlags::OutputDebug(SystemFlags::debugNetwork,"In [%s::%s Line: %d] myhostaddr = [%s]\n",__FILE__,__FUNCTION__,__LINE__,myhostaddr);
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if(strlen(myhostaddr) > 0 && strncmp(myhostaddr,"127.",4) != 0) {
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ipList.push_back(myhostaddr);
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}
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ipIdx++;
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}
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if(strlen(myhostaddr) > 0 && strncmp(myhostaddr,"127.",4) != 0) {
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ipList.push_back(myhostaddr);
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}
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ipIdx++;
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}
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}
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#ifndef WIN32
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// Now check all linux network devices
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for(int idx = 0; idx < 5; ++idx) {
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PLATFORM_SOCKET fd = socket(AF_INET, SOCK_DGRAM, 0);
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std::vector<string> intfTypes;
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intfTypes.push_back("eth");
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intfTypes.push_back("wlan");
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intfTypes.push_back("vboxnet");
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/* I want to get an IPv4 IP address */
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struct ifreq ifr;
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ifr.ifr_addr.sa_family = AF_INET;
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for(int intfIdx = 0; intfIdx < intfTypes.size(); intfIdx++) {
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string intfName = intfTypes[intfIdx];
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for(int idx = 0; idx < 10; ++idx) {
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PLATFORM_SOCKET fd = socket(AF_INET, SOCK_DGRAM, 0);
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/* I want IP address attached to "eth0" */
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char szBuf[10]="";
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sprintf(szBuf,"eth%d",idx);
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strncpy(ifr.ifr_name, szBuf, IFNAMSIZ-1);
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ioctl(fd, SIOCGIFADDR, &ifr);
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close(fd);
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/* I want to get an IPv4 IP address */
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struct ifreq ifr;
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ifr.ifr_addr.sa_family = AF_INET;
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sprintf(myhostaddr, "%s",inet_ntoa(((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr));
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SystemFlags::OutputDebug(SystemFlags::debugNetwork,"In [%s::%s Line: %d] myhostaddr = [%s]\n",__FILE__,__FUNCTION__,__LINE__,myhostaddr);
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/* I want IP address attached to "eth0" */
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char szBuf[100]="";
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sprintf(szBuf,"%s%d",intfName.c_str(),idx);
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strncpy(ifr.ifr_name, szBuf, IFNAMSIZ-1);
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ioctl(fd, SIOCGIFADDR, &ifr);
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close(fd);
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if(strlen(myhostaddr) > 0 && strncmp(myhostaddr,"127.",4) != 0) {
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if(std::find(ipList.begin(),ipList.end(),myhostaddr) == ipList.end()) {
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ipList.push_back(myhostaddr);
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sprintf(myhostaddr, "%s",inet_ntoa(((struct sockaddr_in *)&ifr.ifr_addr)->sin_addr));
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SystemFlags::OutputDebug(SystemFlags::debugNetwork,"In [%s::%s Line: %d] szBuf [%s], myhostaddr = [%s]\n",__FILE__,__FUNCTION__,__LINE__,szBuf,myhostaddr);
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if(strlen(myhostaddr) > 0 && strncmp(myhostaddr,"127.",4) != 0) {
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if(std::find(ipList.begin(),ipList.end(),myhostaddr) == ipList.end()) {
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ipList.push_back(myhostaddr);
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}
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}
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}
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}
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@ -1659,15 +1675,22 @@ void BroadCastSocketThread::execute() {
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bcLocal[idx].sin_family = AF_INET;
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bcLocal[idx].sin_addr.s_addr = inet_addr(subnetmask[idx]); //htonl( INADDR_BROADCAST );
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bcLocal[idx].sin_port = port; // We are letting the OS fill in the port number for the local machine.
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bcfd[idx] = socket( AF_INET, SOCK_DGRAM, 0 );
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if( bcfd[idx] <= 0 ) {
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SystemFlags::OutputDebug(SystemFlags::debugNetwork,"Unable to allocate broadcast socket [%s]: %s\n", subnetmask[idx], getLastSocketErrorFormattedText().c_str());
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//exit(-1);
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}
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// Mark the socket for broadcast.
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else if( setsockopt( bcfd[idx], SOL_SOCKET, SO_BROADCAST, (const char *) &one, sizeof( int ) ) < 0 ) {
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SystemFlags::OutputDebug(SystemFlags::debugNetwork,"Could not set socket to broadcast [%s]: %s\n", subnetmask[idx], getLastSocketErrorFormattedText().c_str());
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//exit(-1);
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#ifdef WIN32
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bcfd[idx] = INVALID_SOCKET;
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#else
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bcfd[idx] = -1;
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#endif
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if(strlen(subnetmask[idx]) > 0) {
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bcfd[idx] = socket( AF_INET, SOCK_DGRAM, 0 );
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if( bcfd[idx] <= 0 ) {
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SystemFlags::OutputDebug(SystemFlags::debugNetwork,"Unable to allocate broadcast socket [%s]: %s\n", subnetmask[idx], getLastSocketErrorFormattedText().c_str());
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//exit(-1);
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}
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// Mark the socket for broadcast.
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else if( setsockopt( bcfd[idx], SOL_SOCKET, SO_BROADCAST, (const char *) &one, sizeof( int ) ) < 0 ) {
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SystemFlags::OutputDebug(SystemFlags::debugNetwork,"Could not set socket to broadcast [%s]: %s\n", subnetmask[idx], getLastSocketErrorFormattedText().c_str());
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//exit(-1);
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}
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}
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SystemFlags::OutputDebug(SystemFlags::debugNetwork,"In [%s::%s Line: %d] setting up broadcast on address [%s]\n",__FILE__,__FUNCTION__,__LINE__,subnetmask[idx]);
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