From 7634b1bbb01d6704354f3efb6acd63fac0cdb9fb Mon Sep 17 00:00:00 2001
From: Gregor Richards <hg-yff@gregor.im>
Date: Sat, 1 Sep 2018 21:14:56 -0400
Subject: [PATCH] Fix netplay on Wii U

getaddrinfo on Wii U doesn't support node==NULL. As I don't know of this
bug on any other platform, I've made a Wii-U-specific workaround in
getaddrinfo_retro.
---
 libretro-common/net/net_compat.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/libretro-common/net/net_compat.c b/libretro-common/net/net_compat.c
index 86c1381221..ea45743596 100644
--- a/libretro-common/net/net_compat.c
+++ b/libretro-common/net/net_compat.c
@@ -183,6 +183,16 @@ int getaddrinfo_retro(const char *node, const char *service,
 #endif
    }
 
+#if defined(WIIU)
+   if (node == NULL) {
+      /* Wii U's socket library chokes on NULL node */
+      if (hints->ai_flags & AI_PASSIVE)
+         node = "0.0.0.0";
+      else
+         node = "127.0.0.1";
+   }
+#endif
+
 #ifdef HAVE_SOCKET_LEGACY
    info = (struct addrinfo*)calloc(1, sizeof(*info));
    if (!info)