fix some compile issues for older operating systems

common/cmdlineparser.cpp

@@ -42,7 +42,7 @@ const option* CCmdLineParser::GenerateOptions()
     _options.push_back(zero);
 
 
-    return _options.data();
+    return &_options.front();
 }
 
 

networkutils/polling.cpp

@@ -86,7 +86,9 @@ uint32_t CEpoll::ToNativeFlags(uint32_t eventflags)
     if (eventflags & IPOLLING_READ)        result |= EPOLLIN;
     if (eventflags & IPOLLING_WRITE)       result |= EPOLLOUT;
     if (eventflags & IPOLLING_EDGETRIGGER) result |= EPOLLET;
+#ifdef EPOLLRDHUP
     if (eventflags & IPOLLING_RDHUP)       result |= EPOLLRDHUP;
+#endif
     if (eventflags & IPOLLING_HUP)         result |= EPOLLHUP;
     if (eventflags & IPOLLING_PRI)         result |= EPOLLPRI;
     if (eventflags & IPOLLING_ERROR)       result |= EPOLLERR;
@@ -102,7 +104,9 @@ uint32_t CEpoll::FromNativeFlags(uint32_t eventflags)
     if (eventflags & EPOLLIN)    result |= IPOLLING_READ;
     if (eventflags & EPOLLOUT)   result |= IPOLLING_WRITE;
     if (eventflags & EPOLLET)    result |= IPOLLING_EDGETRIGGER;
+#ifdef EPOLLRDHUP
     if (eventflags & EPOLLRDHUP) result |= IPOLLING_RDHUP;
+#endif
     if (eventflags & EPOLLHUP)   result |= IPOLLING_HUP;
     if (eventflags & EPOLLPRI)   result |= IPOLLING_PRI;
     if (eventflags & EPOLLERR)   result |= IPOLLING_ERROR;
@@ -328,9 +332,6 @@ uint32_t CPoll::FromNativeFlags(uint32_t eventflags)
 
 HRESULT CPoll::Initialize(size_t maxSockets)
 {
-    pollfd pfd = {};
-    pfd.fd = -1;
-    
     _fds.reserve(maxSockets);
     _rotation = 0;
     _unreadcount = 0;
@@ -338,8 +339,6 @@ HRESULT CPoll::Initialize(size_t maxSockets)
     _hashtable.InitTable(maxSockets, 0);
     
     _fInitialized = true;
-    
-    
 
     return S_OK;
 }
@@ -465,7 +464,7 @@ HRESULT CPoll::WaitForNextEvent(PollEvent* pPollEvent, int timeoutMilliseconds)
         
         _unreadcount = 0;
         
-        list = _fds.data();
+        list = &_fds.front();
     
         ret = poll(list, size, timeoutMilliseconds);
     
@@ -488,7 +487,7 @@ bool CPoll::FindNextEvent(PollEvent* pEvent)
 {
     size_t size = _fds.size();
     ASSERT(size > 0);
-    pollfd* list = _fds.data();
+    pollfd* list = &_fds.front();
     bool fFound = false;
     
     if (_unreadcount == 0)

server/tcpserver.cpp

@@ -19,16 +19,8 @@
 #include "server.h"
 #include "stunsocket.h"
 
-
-
 #include "stunsocketthread.h"
 
-
-
-
-
-
-
 // client sockets are edge triggered
 const uint32_t EPOLL_CLIENT_READ_EVENT_SET = IPOLLING_EDGETRIGGER | IPOLLING_READ | IPOLLING_RDHUP;
 

stuncore/stunbuilder.cpp

@@ -524,6 +524,8 @@ HRESULT CStunMessageBuilder::AddMessageIntegrityLongTerm(const char* pszUserName
     size_t lenRealm = pszRealm ? strlen(pszRealm) : 0;
     size_t lenPassword = pszPassword ? strlen(pszPassword) : 0;
     size_t lenTotal = lenUserName + lenRealm + lenPassword + 2; // +2 for the two colons
+
+    UNREFERENCED_VARIABLE(pResult);
     
     ChkIfA(lenTotal > MAX_KEY_SIZE, E_INVALIDARG); // if we ever hit this limit, just increase MAX_STUN_AUTH_STRING_SIZE
     

testcode/testmessagehandler.cpp

@@ -144,6 +144,8 @@ void CTestMessageHandler::ToAddr(const char* pszIP, uint16_t port, CSocketAddres
 {
     sockaddr_in addr={};
     int result;
+
+    UNREFERENCED_VARIABLE(result);
     
     addr.sin_family = AF_INET;
     addr.sin_port = htons(port);