add license information

Author: bo-tato

content-hash.lisp

@@ -1,5 +1,33 @@
-;; copied from tarhash.lisp from quicklisp-controller: https://github.com/quicklisp/quicklisp-controller
-;; changed to use openssl to compute sha1 digest rather than depending on ironclad
+;;; Copyright (c) 2013 Zachary Beane <xach@xach.com>, All Rights Reserved
+;;;
+;;; Redistribution and use in source and binary forms, with or without
+;;; modification, are permitted provided that the following conditions
+;;; are met:
+;;;
+;;;   * Redistributions of source code must retain the above copyright
+;;;     notice, this list of conditions and the following disclaimer.
+;;;
+;;;   * Redistributions in binary form must reproduce the above
+;;;     copyright notice, this list of conditions and the following
+;;;     disclaimer in the documentation and/or other materials
+;;;     provided with the distribution.
+;;;
+;;; THIS SOFTWARE IS PROVIDED BY THE AUTHOR 'AS IS' AND ANY EXPRESSED
+;;; 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 AUTHOR 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.
+
+;;; Commentary:
+;;;
+;;; copied from tarhash.lisp from quicklisp-controller: https://github.com/quicklisp/quicklisp-controller
+;;; changed to use openssl to compute sha1 digest rather than depending on ironclad
 
 (in-package #:ql-https)