From 7d118bd24931b9a7cfa5426ca56a1c5f6c5fbdf9 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Wed, 30 Mar 2016 11:00:29 -0400
Subject: [PATCH] First attempt at porting GameAgent code.

---
 Sources/Engine/GameAgent/GameAgent.cpp | 44 +++++++++++++++++++++++++-
 Sources/Makefile                       | 19 ++---------
 2 files changed, 46 insertions(+), 17 deletions(-)

diff --git a/Sources/Engine/GameAgent/GameAgent.cpp b/Sources/Engine/GameAgent/GameAgent.cpp
index 8626253..b6d9e8c 100644
--- a/Sources/Engine/GameAgent/GameAgent.cpp
+++ b/Sources/Engine/GameAgent/GameAgent.cpp
@@ -19,9 +19,28 @@
 
 #include <Engine/GameAgent/GameAgent.h>
 
-#pragma comment(lib, "wsock32.lib")
+#ifdef PLATFORM_UNIX
+#include <fcntl.h>
+#include <netdb.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <errno.h>
+#define INVALID_SOCKET -1
+#define SOCKET_ERROR   -1
+#define closesocket close
+typedef int SOCKET;
+typedef struct hostent HOSTENT;
+typedef struct sockaddr_in SOCKADDR_IN;
+typedef struct sockaddr    SOCKADDR;
+#define WSAGetLastError() (INDEX) errno
+#endif
 
+#ifdef PLATFORM_WIN32
+#pragma comment(lib, "wsock32.lib")
 WSADATA* _wsaData = NULL;
+#endif
+
 SOCKET _socket = NULL;
 
 sockaddr_in* _sin = NULL;
@@ -42,6 +61,7 @@ extern CTString ga_strServer = "master1.croteam.org";
 void _uninitWinsock();
 void _initializeWinsock(void)
 {
+#ifdef PLATFORM_WIN32
   if(_wsaData != NULL && _socket != NULL) {
     return;
   }
@@ -61,6 +81,7 @@ void _initializeWinsock(void)
     _uninitWinsock();
     return;
   }
+#endif
 
   // get the host IP
   hostent* phe = gethostbyname(ga_strServer);
@@ -95,20 +116,37 @@ void _initializeWinsock(void)
   }
 
   // set the socket to be nonblocking
+#ifdef PLATFORM_WIN32
   DWORD dwNonBlocking = 1;
   if(ioctlsocket(_socket, FIONBIO, &dwNonBlocking) != 0) {
     CPrintF("Error setting socket to nonblocking!\n");
     _uninitWinsock();
     return;
   }
+#else
+  int flags = fcntl(_socket, F_GETFL);
+  int failed = flags;
+  if (failed != -1) {
+      flags |= O_NONBLOCK;
+      failed = fcntl(_socket, F_SETFL, flags);
+  }
+
+  if (failed == -1) {
+    CPrintF("Error setting socket to nonblocking!\n");
+    _uninitWinsock();
+    return;
+  }
+#endif
 }
 
 void _uninitWinsock()
 {
   if(_wsaData != NULL) {
     closesocket(_socket);
+    #ifdef PLATFORM_WIN32
     delete _wsaData;
     _wsaData = NULL;
+    #endif
   }
   _socket = NULL;
 }
@@ -329,6 +367,8 @@ extern void GameAgent_EnumUpdate(void)
     switch(_szBuffer[0]) {
     case 's':
       {
+        // !!! FIXME: serialize this and byteswap it.  --ryan.
+        #pragma pack(1)
         struct sIPPort {
           UBYTE bFirst;
           UBYTE bSecond;
@@ -336,6 +376,8 @@ extern void GameAgent_EnumUpdate(void)
           UBYTE bFourth;
           USHORT iPort;
         };
+        #pragma pack()
+
         sIPPort* pServers = (sIPPort*)(_szBuffer + 1);
         while(iLen - ((CHAR*)pServers - _szBuffer) >= sizeof(sIPPort)) {
           sIPPort ip = *pServers;
diff --git a/Sources/Makefile b/Sources/Makefile
index ccad0c9..ddb58a6 100644
--- a/Sources/Makefile
+++ b/Sources/Makefile
@@ -274,12 +274,9 @@ ENGINEGRAPHICSSRCS := Engine/Graphics/Adapter.cpp \
 ENGINENETWORKSRCS := Engine/Network/ActionBuffer.cpp \
                      Engine/Network/NetworkMessage.cpp \
                      Engine/Network/Server.cpp \
-                     Engine/Network/GameSpy.cpp \
                      Engine/Network/Buffer.cpp \
                      Engine/Network/NetworkProfile.cpp \
-                     Engine/Network/GameSpyEnum.cpp \
                      Engine/Network/SessionState.cpp \
-                     Engine/Network/GameSpyKeys.cpp \
                      Engine/Network/PlayerBuffer.cpp \
                      Engine/Network/MessageDispatcher.cpp \
                      Engine/Network/PlayerSource.cpp \
@@ -291,13 +288,7 @@ ENGINENETWORKSRCS := Engine/Network/ActionBuffer.cpp \
                      Engine/Network/CommunicationInterface.cpp \
                      Engine/Network/Diff.cpp
 
-
-ENGINEGAMESPYSRCS := Engine/gamespy/darray.c \
-                     Engine/gamespy/gqueryreporting.c \
-                     Engine/gamespy/gserver.c \
-                     Engine/gamespy/gserverlist.c \
-                     Engine/gamespy/hashtable.c \
-                     Engine/gamespy/nonport.c
+ENGINEGAMEAGENTSRCS := Engine/GameAgent/GameAgent.cpp
 
 ENGINETERRAINSRCS := Engine/Terrain/ArrayHolder.cpp \
                      Engine/Terrain/Terrain.cpp \
@@ -309,10 +300,6 @@ ENGINETERRAINSRCS := Engine/Terrain/ArrayHolder.cpp \
                      Engine/Terrain/TerrainRender.cpp \
                      Engine/Terrain/TerrainTile.cpp
 
-
-# this code is included in Engine/gamespy/gqueryreporting, too...
-#ENGINEGAMESPYSRCS += Engine/gamespy/gutil.c
-
 ENGINERENDERINGSRCS := Engine/Rendering/Render.cpp \
                        Engine/Rendering/RenderProfile.cpp \
                        Engine/Rendering/SelectOnRender.cpp
@@ -390,7 +377,7 @@ ENGINESRCS := Engine/Engine.cpp \
               $(ENGINESOUNDSRCS) \
               $(ENGINETEMPLATESSRCS) \
               $(ENGINEWORLDSRCS) \
-              $(ENGINEGAMESPYSRCS) \
+              $(ENGINEGAMEAGENTSRCS) \
               $(ENGINEZLIBSRCS)
 
 OBJS1 := $(ENGINESRCS:.c=.o)
@@ -844,7 +831,7 @@ $(BINDIR) :
 	mkdir -p $(BINDIR)/Engine/Templates
 	mkdir -p $(BINDIR)/Engine/World
 	mkdir -p $(BINDIR)/Engine/Terrain
-	mkdir -p $(BINDIR)/Engine/gamespy
+	mkdir -p $(BINDIR)/Engine/GameAgent
 	mkdir -p $(BINDIR)/Engine/zlib
 	mkdir -p $(BINDIR)/DedicatedServer
 	mkdir -p $(BINDIR)/Entities