Change license from CC0 to MIT-0

There are some concerns about CC0, this moves to the MIT No Attribution license (MIT-0). Resolves #3
jibsen · Oct 31, 2023 · aba0527 · aba0527
1 parent 02e07fb
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diff --git a/COPYING b/COPYING
diff --git a/LICENSE b/LICENSE
@@ -0,0 +1,18 @@
+The MIT No Attribution License (MIT-0)
+
+Copyright 2015-2023 Joergen Ibsen
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+the rights to use, copy, modify, merge, publish, distribute, sublicense,
+and/or sell copies of the Software, and to permit persons to whom the
+Software is furnished to do so.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+DEALINGS IN THE SOFTWARE.
diff --git a/README.md b/README.md
@@ -26,10 +26,9 @@ handle the extensions and idiosyncrasies of other `getopt` implementations,
 and document them.
 
 It consists of a single source and include file, written in portable ANSI C.
-It is made available under [CC0][].
+It is made available under the [MIT No Attribution License](LICENSE) (MIT-0).
 
 [getopt]: https://en.wikipedia.org/wiki/Getopt
-[CC0]: http://creativecommons.org/publicdomain/zero/1.0/
 
 
 Usage

diff --git a/parg.c b/parg.c
@@ -1,12 +1,24 @@
 /*
  * parg - parse argv
  *
- * Written in 2015-2016 by Joergen Ibsen
+ * Copyright 2015-2023 Joergen Ibsen
  *
- * To the extent possible under law, the author(s) have dedicated all
- * copyright and related and neighboring rights to this software to the
- * public domain worldwide. This software is distributed without any
- * warranty. <http://creativecommons.org/publicdomain/zero/1.0/>
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * SPDX-License-Identifier: MIT-0
  */
 
 #include "parg.h"

diff --git a/parg.h b/parg.h
@@ -1,12 +1,24 @@
 /*
  * parg - parse argv
  *
- * Written in 2015-2016 by Joergen Ibsen
- *
- * To the extent possible under law, the author(s) have dedicated all
- * copyright and related and neighboring rights to this software to the
- * public domain worldwide. This software is distributed without any
- * warranty. <http://creativecommons.org/publicdomain/zero/1.0/>
+ * Copyright 2015-2023 Joergen Ibsen
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * SPDX-License-Identifier: MIT-0
  */
 
 #ifndef PARG_H_INCLUDED
@@ -18,8 +30,8 @@ extern "C" {
 
 #define PARG_VER_MAJOR 1        /**< Major version number */
 #define PARG_VER_MINOR 0        /**< Minor version number */
-#define PARG_VER_PATCH 2        /**< Patch version number */
-#define PARG_VER_STRING "1.0.2" /**< Version number as a string */
+#define PARG_VER_PATCH 3        /**< Patch version number */
+#define PARG_VER_STRING "1.0.3" /**< Version number as a string */
 
 /**
  * Structure containing state between calls to parser.

diff --git a/test/test_parg.c b/test/test_parg.c
@@ -1,12 +1,24 @@
 /*
  * test_parg - parg unit test
  *
- * Written in 2015-2016 by Joergen Ibsen
+ * Copyright 2015-2023 Joergen Ibsen
  *
- * To the extent possible under law, the author(s) have dedicated all
- * copyright and related and neighboring rights to this software to the
- * public domain worldwide. This software is distributed without any
- * warranty. <http://creativecommons.org/publicdomain/zero/1.0/>
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * SPDX-License-Identifier: MIT-0
  */
 
 #include "parg.h"