From 0eb84dcca830dcee950a12a48f63062d950d03d0 Mon Sep 17 00:00:00 2001
From: ReenigneArcher <42013603+ReenigneArcher@users.noreply.github.com>
Date: Sat, 4 Apr 2026 22:35:42 -0400
Subject: [PATCH] Add NXDK (Xbox) support

---
 include/enet/enet.h |  2 +-
 unix.c              | 34 ++++++++++++++++++++++++++++++++--
 win32.c             | 26 +++++++++++++-------------
 3 files changed, 46 insertions(+), 16 deletions(-)

diff --git a/include/enet/enet.h b/include/enet/enet.h
index 985b883..1be3c47 100644
--- a/include/enet/enet.h
+++ b/include/enet/enet.h
@@ -12,7 +12,7 @@ extern "C"
 
 #include <stdlib.h>
 
-#ifdef _WIN32
+#if defined(_WIN32) && !defined(NXDK)
 #include "enet/win32.h"
 #else
 #include "enet/unix.h"
diff --git a/unix.c b/unix.c
index 251e144..32c6f14 100644
--- a/unix.c
+++ b/unix.c
@@ -2,7 +2,7 @@
  @file  unix.c
  @brief ENet Unix system specific functions
 */
-#ifndef _WIN32
+#if !defined(_WIN32) || defined(NXDK)
 
 // Required for IPV6_PKTINFO with Darwin headers
 #ifndef __APPLE_USE_RFC_3542
@@ -104,6 +104,34 @@
 #ifndef NO_MSGAPI
 #define NO_MSGAPI 1
 #endif
+#elif defined(NXDK)
+#ifndef HAS_POLL
+#define HAS_POLL 1
+#endif
+#ifndef HAS_FCNTL
+#define HAS_FCNTL 1
+#endif
+#ifndef HAS_IOCTL
+#define HAS_IOCTL 1
+#endif
+#ifndef HAS_INET_PTON
+#define HAS_INET_PTON 1
+#endif
+#ifndef HAS_INET_NTOP
+#define HAS_INET_NTOP 1
+#endif
+#ifndef HAS_SOCKLEN_T
+#define HAS_SOCKLEN_T 1
+#endif
+#ifndef HAS_GETADDRINFO
+#define HAS_GETADDRINFO 1
+#endif
+#ifndef HAS_GETNAMEINFO
+#define HAS_GETNAMEINFO 1
+#endif
+#ifndef NO_MSGAPI
+#define NO_MSGAPI 1
+#endif
 #elif defined(__3DS__)
 #ifdef AF_INET6
 #undef AF_INET6
@@ -438,7 +466,7 @@ enet_socket_set_option (ENetSocket socket, ENetSocketOption option, int value)
     {
         case ENET_SOCKOPT_NONBLOCK:
 #ifdef HAS_FCNTL
-            result = fcntl (socket, F_SETFL, (value ? O_NONBLOCK : 0) | (fcntl (socket, F_GETFL) & ~O_NONBLOCK));
+            result = fcntl (socket, F_SETFL, (value ? O_NONBLOCK : 0) | (fcntl (socket, F_GETFL, 0) & ~O_NONBLOCK));
 #else
 #ifdef HAS_IOCTL
             result = ioctl (socket, FIONBIO, & value);
@@ -715,7 +743,9 @@ enet_socket_send (ENetSocket socket,
         case EADDRNOTAVAIL:
         case ENETDOWN:
         case ENETUNREACH:
+#if !defined(EHOSTDOWN) || (EHOSTDOWN != EHOSTUNREACH)
         case EHOSTDOWN:
+#endif
         case EHOSTUNREACH:
             return 0;
 
diff --git a/win32.c b/win32.c
index 4f37819..f54e0c6 100644
--- a/win32.c
+++ b/win32.c
@@ -1,8 +1,8 @@
-/** 
+/**
  @file  win32.c
  @brief ENet Win32 system specific functions
 */
-#ifdef _WIN32
+#if defined(_WIN32) && !defined(NXDK)
 
 #define ENET_BUILDING_LIB 1
 #include "enet/enet.h"
@@ -51,7 +51,7 @@ enet_initialize (void)
 {
     WORD versionRequested = MAKEWORD (2, 0);
     WSADATA wsaData;
-   
+
     if (WSAStartup (versionRequested, & wsaData))
        return -1;
 
@@ -59,7 +59,7 @@ enet_initialize (void)
         HIBYTE (wsaData.wVersion) != 0)
     {
        WSACleanup ();
-       
+
        return -1;
     }
 
@@ -228,9 +228,9 @@ enet_address_set_host (ENetAddress * address, const char * name)
     {
         memcpy (& address -> address, result -> ai_addr, result -> ai_addrlen);
         address -> addressLength = result -> ai_addrlen;
-        
+
         freeaddrinfo (resultList);
-        
+
         return 0;
     }
 
@@ -429,10 +429,10 @@ enet_socket_accept (ENetSocket socket, ENetAddress * address)
     if (address != NULL)
       address -> addressLength = sizeof (address -> address);
 
-    result = accept (socket, 
-                     address != NULL ? (struct sockaddr *) & address -> address : NULL, 
+    result = accept (socket,
+                     address != NULL ? (struct sockaddr *) & address -> address : NULL,
                      address != NULL ? & address -> addressLength : NULL);
-    
+
     if (result == -1)
       return ENET_SOCKET_NULL;
 
@@ -697,10 +697,10 @@ enet_socket_wait (ENetSocket socket, enet_uint32 * condition, enet_uint32 timeou
     fd_set readSet, writeSet;
     struct timeval timeVal;
     int selectCount;
-    
+
     timeVal.tv_sec = timeout / 1000;
     timeVal.tv_usec = (timeout % 1000) * 1000;
-    
+
     FD_ZERO (& readSet);
     FD_ZERO (& writeSet);
 
@@ -722,12 +722,12 @@ enet_socket_wait (ENetSocket socket, enet_uint32 * condition, enet_uint32 timeou
 
     if (FD_ISSET (socket, & writeSet))
       * condition |= ENET_SOCKET_WAIT_SEND;
-    
+
     if (FD_ISSET (socket, & readSet))
       * condition |= ENET_SOCKET_WAIT_RECEIVE;
 
     return 0;
-} 
+}
 
 #endif