From e8fdd73561fac1e9b4b1114913cd47fcfd63f7b8 Mon Sep 17 00:00:00 2001
From: Dave Murphy <davem@devkitpro.org>
Date: Thu, 15 Mar 2018 20:32:21 +0000
Subject: [PATCH] add support for finding nxlink host

---
 nx/external/bsd/include/netinet/in.h |  2 ++
 nx/source/runtime/argv.c             | 10 ++++++++++
 2 files changed, 12 insertions(+)

diff --git a/nx/external/bsd/include/netinet/in.h b/nx/external/bsd/include/netinet/in.h
index 0f624398..63495b76 100644
--- a/nx/external/bsd/include/netinet/in.h
+++ b/nx/external/bsd/include/netinet/in.h
@@ -678,6 +678,8 @@ struct sockaddr_in6 {
 extern const struct in6_addr in6addr_any;
 extern const struct in6_addr in6addr_loopback;
 
+extern struct in_addr __nxlink_host;
+
 #endif
 
 #endif /* !_NETINET_IN_H_*/
diff --git a/nx/source/runtime/argv.c b/nx/source/runtime/argv.c
index 13c89c68..5b13deaa 100644
--- a/nx/source/runtime/argv.c
+++ b/nx/source/runtime/argv.c
@@ -1,5 +1,8 @@
 #include <string.h>
 #include <ctype.h>
+#include <stdlib.h>
+#include <netinet/in.h>
+
 #include "result.h"
 #include "runtime/env.h"
 #include "kernel/svc.h"
@@ -7,6 +10,7 @@
 // System globals we define here
 int __system_argc;
 char** __system_argv;
+struct in_addr __nxlink_host;
 
 extern char* fake_heap_start;
 extern char* fake_heap_end;
@@ -136,6 +140,12 @@ void argvSetup(void)
         __system_argc++;
     }
 
+    if (strncmp(__system_argv[__system_argc - 1], "NXLINKED", 8) == 0 ) {
+        __system_argc--;
+
+        __nxlink_host.s_addr = strtoul(&__system_argv[__system_argc][8], NULL, 16);
+    }
+
     __system_argv[__system_argc] = NULL;
 }