License additionally under BSD-1-Clause and CC0-1.0

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

3 files changed, 171 insertions, 25 deletions

diff --git a/COPYING b/COPYING
index 35e02b0..0c5e554 100644
--- a/COPYING
+++ b/COPYING
@@ -1,8 +1,10 @@
 This project is licensed under any one of:
 
-- GPL v2
+- GPL-2.0
+- Apache-2.0
 - MIT
-- Apache 2.0
+- BSD-1-Clause
+- CC0-1.0
 
 Choose which one works best for you. They are reproduced below.
 
@@ -347,26 +349,6 @@ consider it more useful to permit linking proprietary applications with the
 library.  If this is what you want to do, use the GNU Lesser General
 Public License instead of this License.
 -------------------------------------------------------------------------------
-MIT License
-
-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, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-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.
--------------------------------------------------------------------------------
                                  Apache License
                            Version 2.0, January 2004
                         http://www.apache.org/licenses/
@@ -569,3 +551,162 @@ SOFTWARE.
    See the License for the specific language governing permissions and
    limitations under the License.
 -------------------------------------------------------------------------------
+MIT License
+
+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, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+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.
+-------------------------------------------------------------------------------
+BSD 1-Clause License
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+-------------------------------------------------------------------------------
+Creative Commons Legal Code - CC0 1.0 Universal
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+-------------------------------------------------------------------------------
diff --git a/README.md b/README.md
index 55c6a6e..5a58848 100644
--- a/README.md
+++ b/README.md
@@ -64,5 +64,10 @@ However, this invocation should generally come from init and shutdown scripts.
 
 ### License
 
-This program is licensed under any one of the GPL v2, MIT, or Apache 2.0, so
-that it can be incorporated into other software projects as needed.
+This program is licensed under any one of the the following licenses, so that it can be incorporated into other software projects as needed:
+
+    - GPL-2.0
+    - Apache-2.0
+    - MIT
+    - BSD-1-Clause
+    - CC0-1.0
diff --git a/seedrng.c b/seedrng.c
index 33381a8..852ed48 100644
--- a/seedrng.c
+++ b/seedrng.c
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0 OR MIT OR Apache-2.0)
+// SPDX-License-Identifier: (GPL-2.0 OR Apache-2.0 OR MIT OR BSD-1-Clause OR CC0-1.0)
 /*
  * Copyright (C) 2022 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
  */