SDL_net: SDL_net.c: Added a copyright header to the top of the file.

From 00404cfa71c7f391d26d67aa7d4d853a8355df7e Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Tue, 2 Jan 2024 00:24:39 -0500
Subject: [PATCH] SDL_net.c: Added a copyright header to the top of the file.

---
 src/SDL_net.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/src/SDL_net.c b/src/SDL_net.c
index 74dcdc1..d53106c 100644
--- a/src/SDL_net.c
+++ b/src/SDL_net.c
@@ -1,3 +1,24 @@
+/*
+  SDL_net: A simple networking library for use with SDL
+  Copyright (C) 1997-2024 Sam Lantinga <slouken@libsdl.org>
+
+  This software is provided 'as-is', without any express or implied
+  warranty.  In no event will the authors be held liable for any damages
+  arising from the use of this software.
+
+  Permission is granted to anyone to use this software for any purpose,
+  including commercial applications, and to alter it and redistribute it
+  freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+*/
+
 #ifdef _WIN32_WINNT
 #  if _WIN32_WINNT < 0x0600 // we need APIs that didn't arrive until Windows Vista.
 #    undef _WIN32_WINNT