multicast test added

src/utils/inetAddressUtil.cpp

@@ -83,7 +83,7 @@ int32 ipv4AddressToInt(const osiSockAddr& addr) {
     return (int32)ntohl(addr.ia.sin_addr.s_addr);
 }
 
-int32 parseInetAddress(const string addr) {
+int32 parseInetAddress(const string & addr) {
     int32 retAddr;
 
     size_t dot = addr.find('.');
@@ -117,7 +117,7 @@ int32 parseInetAddress(const string addr) {
     return htonl(retAddr);
 }
 
-InetAddrVector* getSocketAddressList(std::string list, int defaultPort,
+InetAddrVector* getSocketAddressList(const std::string & list, int defaultPort,
         const InetAddrVector* appendList) {
     InetAddrVector* iav = new InetAddrVector();
 
@@ -145,7 +145,7 @@ InetAddrVector* getSocketAddressList(std::string list, int defaultPort,
     return iav;
 }
 
-const string inetAddressToString(const osiSockAddr &addr,
+string inetAddressToString(const osiSockAddr &addr,
         bool displayPort, bool displayHex) {
     stringstream saddr;
 
@@ -162,5 +162,21 @@ const string inetAddressToString(const osiSockAddr &addr,
     return saddr.str();
 }
 
+int getLoopbackNIF(osiSockAddr &loAddr, string const & localNIF, unsigned short port)
+{
+    if (!localNIF.empty())
+    {
+        if (aToIPAddr(localNIF.c_str(), port, &loAddr.ia) == 0)
+            return 0;
+        // else TODO log error
+    }
+
+    // fallback
+    loAddr.ia.sin_family = AF_INET;
+    loAddr.ia.sin_port = ntohs(port);
+    loAddr.ia.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
+    return 1;
+}
+
 }
 }

src/utils/inetAddressUtil.h

@@ -77,12 +77,14 @@ namespace pvAccess {
      * @param appendList    list to be appended.
      * @return  array of <code>InetSocketAddress</code>.
      */
-    epicsShareFunc InetAddrVector* getSocketAddressList(std::string list, int defaultPort,
+    epicsShareFunc InetAddrVector* getSocketAddressList(const std::string & list, int defaultPort,
             const InetAddrVector* appendList = NULL);
 
-    epicsShareFunc const std::string inetAddressToString(const osiSockAddr &addr,
+    epicsShareFunc std::string inetAddressToString(const osiSockAddr &addr,
             bool displayPort = true, bool displayHex = false);
 
+    epicsShareFunc int getLoopbackNIF(osiSockAddr& loAddr, std::string const & localNIF, unsigned short port);
+
     /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
 
     // comparators for osiSockAddr