Updating UPnP code for windows. (untested)

UPnP.cpp

@@ -2,6 +2,10 @@
 #include <string>
 #include <thread>
 
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
 #include <boost/thread/thread.hpp>
 #include <boost/asio.hpp>
 #include <boost/bind.hpp>
@@ -66,11 +70,21 @@ namespace UPnP
     {
 #ifdef MAC_OSX
         m_Module = dlopen ("libminiupnpc.dylib", RTLD_LAZY);
-#elif WIN32
-        m_Module = dlopen ("libminiupnpc.dll", RTLD_LAZY);
+#elif _WIN32
+        m_Module = LoadLibrary ("libminiupnpc.dll");
+        if (m_Module == NULL)
+        {
+            LogPrint ("Error loading UPNP library. This often happens if there is version mismatch!");
+            return;
+        }
+        else
+        {
+            m_IsModuleLoaded = true;
+        }
 #else
         m_Module = dlopen ("libminiupnpc.so", RTLD_LAZY);
 #endif
+#ifndef _WIN32
         if (!m_Module)
         {
             LogPrint ("no UPnP module available (", dlerror (), ")");
@@ -80,6 +94,7 @@ namespace UPnP
         {
             m_IsModuleLoaded = true;
         }
+#endif
         for (auto& address : context.GetRouterInfo ().GetAddresses ())
         {
             if (!address.host.is_v6 ())
@@ -101,6 +116,9 @@ namespace UPnP
     void UPnP::Discover ()
     {
         const char *error;
+#ifdef _WIN32
+        upnp_upnpDiscoverFunc upnpDiscoverFunc = (upnp_upnpDiscoverFunc) GetProcAddress (m_Module, "upnpDiscover");
+#else
         upnp_upnpDiscoverFunc upnpDiscoverFunc = (upnp_upnpDiscoverFunc) dlsym (m_Module, "upnpDiscover");
         // reinterpret_cast<upnp_upnpDiscoverFunc> (dlsym(...));
         if ( (error = dlerror ()))
@@ -108,6 +126,7 @@ namespace UPnP
             LogPrint ("Error loading UPNP library. This often happens if there is version mismatch!");
             return;
         }
+#endif // _WIN32
 #ifndef UPNPDISCOVER_SUCCESS
         /* miniupnpc 1.5 */
         m_Devlist = upnpDiscoverFunc (2000, m_MulticastIf, m_Minissdpdpath, 0);
@@ -116,8 +135,13 @@ namespace UPnP
         int nerror = 0;
         m_Devlist = upnpDiscoverFunc (2000, m_MulticastIf, m_Minissdpdpath, 0, 0, &nerror);
 #endif
+
         int r;
+#ifdef _WIN32
+        upnp_UPNP_GetValidIGDFunc UPNP_GetValidIGDFunc = (upnp_UPNP_GetValidIGDFunc) GetProcAddress (m_Module, "UPNP_GetValidIGD");
+#else
         upnp_UPNP_GetValidIGDFunc UPNP_GetValidIGDFunc = (upnp_UPNP_GetValidIGDFunc) dlsym (m_Module, "UPNP_GetValidIGD");
+#endif
         r = (*UPNP_GetValidIGDFunc) (m_Devlist, &m_upnpUrls, &m_upnpData, m_NetworkAddr, sizeof (m_NetworkAddr));
         if (r == 1)
         {
@@ -161,7 +185,11 @@ namespace UPnP
         std::string strDesc = "I2Pd";
         try {
             for (;;) {
-                upnp_UPNP_AddPortMappingFunc UPNP_AddPortMappingFunc = (upnp_UPNP_AddPortMappingFunc) dlsym(m_Module, "UPNP_AddPortMapping");
+#ifdef _WIN32
+                upnp_UPNP_AddPortMappingFunc UPNP_AddPortMappingFunc = (upnp_UPNP_AddPortMappingFunc) GetProcAddress (m_Module, "UPNP_AddPortMapping");
+#else
+                upnp_UPNP_AddPortMappingFunc UPNP_AddPortMappingFunc = (upnp_UPNP_AddPortMappingFunc) dlsym (m_Module, "UPNP_AddPortMapping");
+#endif
 #ifndef UPNPDISCOVER_SUCCESS
                 /* miniupnpc 1.5 */
                 r = UPNP_AddPortMappingFunc (m_upnpUrls.controlURL, m_upnpData.first.servicetype, m_Port.c_str (), m_Port.c_str (), m_NetworkAddr, strDesc.c_str (), strType.c_str (), 0);
@@ -203,19 +231,35 @@ namespace UPnP
                 strType = "UDP";
         }
         int r = 0;
+#ifdef _WIN32
+        upnp_UPNP_DeletePortMappingFunc UPNP_DeletePortMappingFunc = (upnp_UPNP_DeletePortMappingFunc) GetProcAddress (m_Module, "UPNP_DeletePortMapping");
+#else
         upnp_UPNP_DeletePortMappingFunc UPNP_DeletePortMappingFunc = (upnp_UPNP_DeletePortMappingFunc) dlsym (m_Module, "UPNP_DeletePortMapping");
+#endif
         r = UPNP_DeletePortMappingFunc (m_upnpUrls.controlURL, m_upnpData.first.servicetype, m_Port.c_str (), strType.c_str (), 0);
         LogPrint ("UPNP_DeletePortMapping() returned : ", r, "\n");
     }
 
     void UPnP::Close ()
     {
+#ifdef _WIN32
+        upnp_freeUPNPDevlistFunc freeUPNPDevlistFunc = (upnp_freeUPNPDevlistFunc) GetProcAddress (m_Module, "freeUPNPDevlist");
+#else
         upnp_freeUPNPDevlistFunc freeUPNPDevlistFunc = (upnp_freeUPNPDevlistFunc) dlsym (m_Module, "freeUPNPDevlist");
+#endif
         freeUPNPDevlistFunc (m_Devlist);
         m_Devlist = 0;
+#ifdef _WIN32
+        upnp_FreeUPNPUrlsFunc FreeUPNPUrlsFunc = (upnp_FreeUPNPUrlsFunc) GetProcAddress (m_Module, "FreeUPNPUrlsFunc");
+#else
         upnp_FreeUPNPUrlsFunc FreeUPNPUrlsFunc = (upnp_FreeUPNPUrlsFunc) dlsym (m_Module, "FreeUPNPUrlsFunc");
+#endif
         FreeUPNPUrlsFunc (&m_upnpUrls);
+#ifndef _WIN32
         dlclose (m_Module);
+#else
+        FreeLibrary (m_Module);
+#endif
     }
 
 }

UPnP.h

@@ -50,7 +50,11 @@ namespace UPnP
         char m_externalIPAddress[40];
         bool m_IsModuleLoaded;
         std::string m_Port = std::to_string (util::config::GetArg ("-port", 17070));
+#ifndef _WIN32
         void *m_Module;
+#else
+        HINSTANCE *m_Module;
+#endif
 	};
 	extern UPnP upnpc;
 }