XOR.c: Add attribution and replace the legal notice

I have permission to do this.  See the LEGAL directory.

1 files changed, 17 insertions, 3 deletions

diff --git a/src/XOR.c b/src/XOR.c
index 1dc05fb..2e8594f 100644
--- a/src/XOR.c
+++ b/src/XOR.c
@@ -4,10 +4,24 @@
  *
  * Part of the Python Cryptography Toolkit
  *
- * Distribute and use freely; there are no restrictions on further 
- * dissemination and usage except those imposed by the laws of your 
- * country of residence.
+ * Contributed by Barry Warsaw and others.
  *
+ * =======================================================================
+ * The contents of this file are dedicated to the public domain.  To the
+ * extent that dedication to the public domain is not available, everyone
+ * is granted a worldwide, perpetual, royalty-free, non-exclusive license
+ * to exercise all rights associated with the contents of this file for
+ * any purpose whatsoever.  No rights are reserved.
+ *
+ * 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.
+ * =======================================================================
  */
 
 #include "Python.h"