Add license to various files

AUTHORS

@@ -0,0 +1,4 @@
+# The Hush Developers
+
+Duke Leto https://git.hush.is/duke
+

README.md

@@ -64,3 +64,9 @@ the -p 5353 option.
 ## LICENSE
 
 GPLv3
+
+## CONTRIBUTORS
+
+See a list of people who contributed to this code in AUTHORS. If you have made
+contributions to this code, you are welcome to submit a PR adding yourself to this
+file.

bitcoin.cpp

@@ -1,5 +1,8 @@
-#include <algorithm>
+// Copyright (c) 2018-2021 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file LICENSE or https://www.gnu.org/licenses/gpl-3.0.en.html
 
+#include <algorithm>
 #include "coin.h"
 #include "db.h"
 #include "netbase.h"

bitcoin.h

@@ -1,3 +1,6 @@
+// Copyright (c) 2018-2021 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file LICENSE or https://www.gnu.org/licenses/gpl-3.0.en.html
 #ifndef _BITCOIN_H_
 #define _BITCOIN_H_ 1
 

db.cpp

@@ -1,3 +1,6 @@
+// Copyright (c) 2018-2021 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file LICENSE or https://www.gnu.org/licenses/gpl-3.0.en.html
 #include "db.h"
 #include <stdlib.h>
 

db.h

@@ -1,3 +1,6 @@
+// Copyright (c) 2018-2021 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file LICENSE or https://www.gnu.org/licenses/gpl-3.0.en.html
 #include <stdint.h>
 #include <math.h>
 

dns.h

@@ -1,3 +1,6 @@
+// Copyright (c) 2018-2021 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file LICENSE or https://www.gnu.org/licenses/gpl-3.0.en.html
 #ifndef _DNS_H_
 #define _DNS_H_ 1
 

main.cpp

@@ -1,3 +1,6 @@
+// Copyright (c) 2018-2021 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file LICENSE or https://www.gnu.org/licenses/gpl-3.0.en.html
 #include <algorithm>
 
 #define __STDC_FORMAT_MACROS
@@ -8,7 +11,6 @@
 #include <stdlib.h>
 #include <getopt.h>
 #include <atomic>
-
 #include "bitcoin.h"
 #include "db.h"
 

util.cpp

@@ -1,3 +1,6 @@
+// Copyright (c) 2018-2021 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file LICENSE or https://www.gnu.org/licenses/gpl-3.0.en.html
 #include <stdio.h>
 #include "util.h"
 

util.h

@@ -1,3 +1,7 @@
+// Copyright (c) 2018-2021 The Hush developers
+// Distributed under the GPLv3 software license, see the accompanying
+// file LICENSE or https://www.gnu.org/licenses/gpl-3.0.en.html
+
 #ifndef _UTIL_H_
 #define _UTIL_H_ 1