Replace https with http for any link via webhop.net.

index.html

@@ -25,9 +25,9 @@ <h2>C Interfaces and Implementations</h2>
         <p>Read: <a href="https://www.oreilly.com/library/view/c-interfaces-and/9780321562807/">O&rsquo;Reilly Safari</a></p>
         <p>Explore: <a href="toc.html">Contents</a> <a href="preface.html">Preface</a> <a
             href="https://cii.s3.amazonaws.com/book/pdf/atom.pdf">Chapter 3</a> <a href="errata.html">Errata</a></p>
-        <p>Reviews: <a href="https://storage.webhop.net/documents/CRreview.pdf">Computing Reviews</a>
+        <p>Reviews: <a href="http://storage.webhop.net/documents/CRreview.pdf">Computing Reviews</a>
             &emsp;<a href="review.html">comp.lang.c.moderated</a></p>
-        Related: <a href="https://lcc.webhop.net" target="_blank">A Retargetable C Compiler</a></p>
+        Related: <a href="http://lcc.webhop.net" target="_blank">A Retargetable C Compiler</a></p>
 
         <p><em>C Interfaces and Implementations: Techniques for Creating Reusable Software</em>
         (<a href="https://www.awprofessional.com/">Addison-Wesley Professional Computing Series</a>, 1997,

preface.html

@@ -123,7 +123,7 @@ <h4>Organization</h4>
 motivates and describes the interface-based design methodology, defines the relevant terminology, and
 tours two simple interfaces and their implementations. Chapter 3 describes the prototypical <code>Atom</code>
 interface, which is the simplest production-quality interface in this book.
-[<a href="https://ciibook.webhop.net/pdf/atom.pdf">Download/view Chapter 3</a>, an Adobe Acrobat PDF file
+[<a href="http://ciibook.webhop.net/pdf/atom.pdf">Download/view Chapter 3</a>, an Adobe Acrobat PDF file
 (52K).] Chapter 4 introduces exceptions and assertions, which are used in every interface. Chapters 5 and
 6 describe the memory management interfaces used by almost all the implementations. The rest of the
 chapters each describe an interface and its implementation.</p>

toc.html

@@ -27,7 +27,7 @@ <h3>Contents</h3>
         <li><b>Interfaces and Implementations</b><br>
                 Interfaces (<a href="https://raw.githubusercontent.com/drh/cii/master/include/arith.h">arith.h</a>)<br>
                 Implementations (<a href="https://raw.githubusercontent.com/drh/cii/master/src/arith.c">arith.c</a>)
-        <li><b>Atoms</b> <em><a href="https://ciibook.webhop.net/pdf/atom.pdf">Download/view this chapter</a> </em>(PDF, 52K)<br>
+        <li><b>Atoms</b> <em><a href="http://ciibook.webhop.net/pdf/atom.pdf">Download/view this chapter</a> </em>(PDF, 52K)<br>
                 Interface (<a href="https://raw.githubusercontent.com/drh/cii/master/include/atom.h">atom.h</a>)<br>
                 Implementation (<a href="https://raw.githubusercontent.com/drh/cii/master/src/atom.c">atom.c</a>)
         <li><b>Exceptions and Assertions</b><br>