Port to CHICKEN 6

rabbit.egg

@@ -0,0 +1,8 @@
+;; -*- lisp-data -*-
+((synopsis "Rabbit stream cipher.")
+ (license "Public Domain")
+ (category crypt)
+ (test-dependencies test)
+ (maintainer "Lilianna Smólska")
+ (author "Martin Boesgaard, Mette Vesterager, Thomas Christensen and Erik Zenner")
+ (components (extension rabbit (source "rabbit.sld"))))

rabbit.meta

@@ -1,25 +0,0 @@
-;; -*- Hen -*-
-
-((egg "rabbit.egg") ; This should never change
-
- ; List here all the files that should be bundled as part of your egg.  
-
- (files "rabbit.setup" "rabbit.meta"  "rabbit.scm" "rabbitlib.c" "tests")
-
- ; Your egg's license:
-
- (license "Public Domain")
-
- ; Pick one from the list of categories (see below) for your egg and
- ; enter it here.
-
- (category crypt)
-
- ; A list of eggs mpi depends on.
-
- (test-depends test)
-
- (maintainer "Ivan Raikov")
- (author "Martin Boesgaard, Mette Vesterager, Thomas Christensen and Erik Zenner")
-
- (synopsis "Rabbit stream cipher"))

rabbit.release-info

@@ -1,7 +1,4 @@
-;; -*- scheme -*-
+;; -*- lisp-data -*-
-
+(repo git "git://git.linuxposting.xyz/afiw/chicken-rabbit.git")
-(repo git "git://github.com/iraikov/chicken-rabbit.git")
+(uri targz "https://git.linuxposting.xyz/afiw/chicken-rabbit/archive/{egg-release}.tar.gz")
-(uri targz "https://github.com/iraikov/chicken-rabbit/tarball/{egg-release}")
+(release "3.0")
-(uri files-list "http://code.call-cc.org/files-list?egg={egg-name};egg-release={egg-release};chicken-release={chicken-release}" old-uri)
-
-(release "v1.1")

rabbit.scm

@@ -6,66 +6,46 @@
 
 ;; Based on lambdanative rabbit lib, ported to Chicken Scheme by Ivan Raikov
 
-(module rabbit
+(define debuglevel (make-parameter 0))
-
+(define (logger level . x)
-        (rabbit-debuglevel
+  (if (>= (debuglevel) level) (apply printf (append (list "rabbit: ") x))))
-         rabbit-make
-         rabbit-destroy!
-         rabbit-encode!
-         rabbit-decode!)
-
-	(import scheme chicken foreign)
-        (import (only extras printf))
-
-        (define rabbit-debuglevel (make-parameter 0))
-        (define (rabbit-log level . x)
-          (if (>= (rabbit-debuglevel) level) (apply printf (append (list "rabbit: ") x))))
-
 
 #>
-#define C_bytevector_length(x)      (C_header_size(x))
+#define C_bytevector_length(x) (C_header_size(x))
 #include "rabbitlib.c"
 <#
 
-
+(define (make-context key) ; key must be at least 24 bytes
-(define (rabbit-make key)  ;; key must be at least 24 bytes
+  (logger 1 "make-context " (utf8->string key))
-  (rabbit-log 1 "rabbit-make " (blob->string key))
   ((foreign-safe-lambda* nonnull-c-pointer ((scheme-object key))
-#<<END
+#<<EOT
-     int len; void* keydata, *result;
+int len;
-     len   = C_bytevector_length(key);
+void *keydata, *result;
-     keydata  = C_c_bytevector (key);
+len = C_bytevector_length(key);
-     result = (void *)_rabbit_make(keydata, len);
+keydata = C_c_bytevector(key);
-     C_return (result);
+result = (void *)_rabbit_make(keydata, len);
-END
+C_return(result);                      
-   ) key)
+EOT
-  )
+                         ) key))
 
+(define (destroy-context! ctx)
+  (logger 1 "destroy-context " ctx)
+  ((foreign-lambda* void ((nonnull-c-pointer ctx)) "_rabbit_destroy(ctx);") ctx))
 
-(define (rabbit-destroy! ctx)
+(define (encode! ctx v)
-  (rabbit-log 1 "rabbit-destroy " ctx)
+  (logger 2 "encode/decode " ctx " " v)
-  ((foreign-lambda* void ((nonnull-c-pointer ctx))
+  (if (bytevector? v) 
-#<<END
-     _rabbit_destroy(ctx);
-END
-   ) ctx)
-)
-
-(define (rabbit-encode! ctx v)
-  (rabbit-log 2 "rabbit-encode/decode " ctx " " v)
-  (if (blob? v) 
       (begin
         ((foreign-lambda* void ((nonnull-c-pointer ctx) (scheme-object v))
-#<<EOF
+                          #<<EOT
-          int len; void* data;
+                          int len;
-          data  = C_c_bytevector (v);
+                          void *data;
-          len   = C_bytevector_length(v);
+                          data = C_c_bytevector(v);
-          _rabbit_encode(ctx,data,len);
+                          len = C_bytevector_length(v);
-EOF
+                          _rabbit_encode(ctx, data, len);
-) ctx v)
+EOT
+                          ) ctx v)
         v)
       #f))
 
-(define rabbit-decode! rabbit-encode!)
+(define decode! encode!)
-
-)

rabbit.setup

@@ -1,20 +0,0 @@
-;; -*- Hen -*-
-
-(define (dynld-name fn)		
-  (make-pathname #f fn ##sys#load-dynamic-extension))	
-
-(compile -S -O2 -d0 -I. -s rabbit.scm -j rabbit)
-(compile -O2 -d0 -s rabbit.import.scm)
-
-(install-extension
-
-  ; Name of your extension:
-  'rabbit
-
-  ; Files to install for your extension:
-  `(,(dynld-name "rabbit") ,(dynld-name "rabbit.import") )
-    
-  ; Assoc list with properties for your extension:
-  `((version "v1.1")
-    ))
-

rabbit.sld

@@ -0,0 +1,14 @@
+(define-library rabbit
+  (import
+   (scheme base)
+   (chicken base)
+   (chicken bytevector)
+   (chicken foreign)
+   (chicken format))
+  (export
+   debuglevel
+   make-context
+   destroy-context!
+   encode!
+   decode!)
+  (include "rabbit.scm"))

tests/run.scm

@@ -1,32 +1,23 @@
-(use rabbit srfi-4 test)
+(import
-
+ (scheme base)
-(randomize)
+ (chicken base)
-
+ (chicken random)
-(define (random-blob n)
+ (chicken bytevector)
-  (let ((v (make-u8vector n)))
+ (rabbit)
-    (let loop ((n n))
+ (test))
-      (if (> n 0)
-          (begin 
-            (u8vector-set! v (- n 1) (random 255))
-            (loop (- n 1)))
-          (u8vector->blob v)))
-    ))
 
 (test-group "rabbit 1000 random vectors"
-  (let loop ((n 1000))
+            (let loop ((n 1000))
-    (test-assert
+              (test-assert
-      (if (= n 0) #t 
+               (if (= n 0)
-          (if (let* (
+                   #t
-                     (keylen (+ (random 10) 24))
+                   (if (let* ((keylen (+ (pseudo-random-integer 10) 24))
-                     (key (random-blob keylen))
+                              (key (random-bytes (make-bytevector keylen)))
-                     (datalen (random 100000))
+                              (datalen (pseudo-random-integer 100000))
-                     (data (random-blob datalen))
+                              (data (random-bytes (make-bytevector datalen)))
-                     (ctx (rabbit-make key))
+                              (ctx (make-context key)))
-                     )
+                         (let ((res (not (equal? data (decode! ctx (encode! ctx data))))))
-                (let ((res (not (equal? data (rabbit-decode! ctx (rabbit-encode! ctx data))))))
+                           (destroy-context! ctx)
-                  (rabbit-destroy! ctx)
+                           res))
-                  res))
+                       #f
-              #f 
+                       (loop (- n 1)))))))
-              (loop (- n 1)))))))
-
-;; eof