Fix compile issues

src/d_clisrv.c

@@ -1374,8 +1374,6 @@ static boolean CL_SendJoin(void)
 	netbuffer->u.clientcfg.challengenum = cl_challengenum;
 	memcpy(netbuffer->u.clientcfg.challengeanswer, cl_challengeanswer, MD5_LEN);
 
-	nodes[servernode].flags &= ~NF_CLOSE; // Hell if I know.
-
 	return HSendPacket(servernode, true, 0, sizeof (clientconfig_pak));
 }
 
@@ -3832,9 +3830,6 @@ static void HandleConnect(SINT8 node)
 			}
 		}
 
-		// The connecting node may be
-		nodes[node].flags &= ~NF_CLOSE;
-
 		if (netbuffer->u.clientcfg.needsdownload)
 		{
 			netbuffer->packettype = PT_DOWNLOADFILESOKAY;

src/d_net.c

@@ -1110,6 +1110,10 @@ boolean HSendPacket(INT32 node, boolean reliable, UINT8 acknum, size_t packetlen
 	netbuffer->checksum = NetbufferChecksum();
 	sendbytes += packetheaderlength + doomcom->datalength; // For stat
 
+	// Joinpasswords close nodes, this may try to send to a waiting-to-close node, so cancel closing?
+	if (netbuffer->packettype == PT_CLIENTJOIN)
+		nodes[node].flags &= ~NF_CLOSE;
+
 #ifdef PACKETDROP
 	// Simulate internet :)
 	//if (rand() >= (INT32)(RAND_MAX * (PACKETLOSSRATE / 100.f)))
@@ -1191,6 +1195,10 @@ boolean HGetPacket(void)
 			SV_AbortSendFiles(doomcom->remotenode);
 		}
 
+		// Joinpasswords close nodes, this may receive from a waiting-to-close node, so cancel closing?
+		if (netbuffer->packettype == PT_CLIENTJOIN)
+			nodes[doomcom->remotenode].flags &= ~NF_CLOSE;
+
 		getbytes += packetheaderlength + doomcom->datalength; // For stat
 
 		if (doomcom->remotenode >= MAXNETNODES)

src/i_tcp.c

@@ -508,6 +508,8 @@ static boolean SOCK_cmpaddr(mysockaddr_t *a, mysockaddr_t *b, UINT8 mask)
 		return false;
 }
 
+static void SOCK_FreeNodenum(INT32 numnode);
+
 // This is a hack. For some reason, nodes aren't being freed properly.
 // This goes through and cleans up what nodes were supposed to be freed.
 /** \warning This function causes the file downloading to stop if someone joins.