X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=contrib%2Fsb-md5%2Fmd5.lisp;h=eb7c7d57bc31a96e9a1d9a9d3359d6dc792cbb76;hb=338732358d49ab202fe55c3581294597d63aec6b;hp=aa37da68a66e16df07410e455283626cfef33732;hpb=dd357f3be290498fb7ef172696d986337f517a93;p=sbcl.git

diff --git a/contrib/sb-md5/md5.lisp b/contrib/sb-md5/md5.lisp
index aa37da6..eb7c7d5 100644
--- a/contrib/sb-md5/md5.lisp
+++ b/contrib/sb-md5/md5.lisp
@@ -40,7 +40,7 @@
    #:md5-state #:md5-state-p #:make-md5-state
    #:update-md5-state #:finalize-md5-state
    ;; High-Level functions on sequences, streams and files
-   #:md5sum-sequence #:md5sum-stream #:md5sum-file))
+   #:md5sum-sequence #:md5sum-string #:md5sum-stream #:md5sum-file))
 
 (in-package :SB-MD5)
 
@@ -277,11 +277,7 @@ starting from offset into the given 16 word MD5 block."
    block (* vm:vector-data-offset vm:word-bits)
    (* 64 vm:byte-bits))
   #+(and :sbcl :little-endian)
-  (sb-kernel:bit-bash-copy
-   buffer (+ (* sb-vm:vector-data-offset sb-vm:n-word-bits)
-	     (* offset sb-vm:n-byte-bits))
-   block (* sb-vm:vector-data-offset sb-vm:n-word-bits)
-   (* 64 sb-vm:n-byte-bits))
+  (sb-kernel:ub8-bash-copy buffer offset block 0 64)
   #-(or (and :sbcl :little-endian) (and :cmu :little-endian))
   (loop for i of-type (integer 0 16) from 0
 	for j of-type (integer 0 #.most-positive-fixnum)
@@ -306,11 +302,7 @@ offset into the given 16 word MD5 block."
    block (* vm:vector-data-offset vm:word-bits)
    (* 64 vm:byte-bits))
   #+(and :sbcl :little-endian)
-  (sb-kernel:bit-bash-copy
-   buffer (+ (* sb-vm:vector-data-offset sb-vm:n-word-bits)
-	     (* offset sb-vm:n-byte-bits))
-   block (* sb-vm:vector-data-offset sb-vm:n-word-bits)
-   (* 64 sb-vm:n-byte-bits))
+  (sb-kernel:ub8-bash-copy buffer offset block 0 64)
   #-(or (and :sbcl :little-endian) (and :cmu :little-endian))
   (loop for i of-type (integer 0 16) from 0
 	for j of-type (integer 0 #.most-positive-fixnum)
@@ -380,12 +372,7 @@ starting at buffer-offset."
 	     (* buffer-offset vm:byte-bits))
    (* count vm:byte-bits))
   #+sbcl
-  (sb-kernel:bit-bash-copy
-   from (+ (* sb-vm:vector-data-offset sb-vm:n-word-bits)
-	   (* from-offset sb-vm:n-byte-bits))
-   buffer (+ (* sb-vm:vector-data-offset sb-vm:n-word-bits)
-	     (* buffer-offset sb-vm:n-byte-bits))
-   (* count sb-vm:n-byte-bits))
+  (sb-kernel:ub8-bash-copy from from-offset buffer buffer-offset count)
   #-(or cmu sbcl)
   (etypecase from
     (simple-string
@@ -516,10 +503,9 @@ The resulting MD5 message-digest is returned as an array of sixteen
 ;;; High-Level Drivers
 
 (defun md5sum-sequence (sequence &key (start 0) end)
-  "Calculate the MD5 message-digest of data in sequence.  On CMU CL
-this works for all sequences whose element-type is supported by the
-underlying MD5 routines, on other implementations it only works for 1d
-simple-arrays with such element types."
+  "Calculate the MD5 message-digest of data bounded by START and END
+in SEQUENCE , which must be a vector with element-type (UNSIGNED-BYTE
+8)."
   (declare (optimize (speed 3) (space 0) (debug 0))
 	   (type vector sequence) (type fixnum start))
   (let ((state (make-md5-state)))
@@ -536,6 +522,18 @@ simple-arrays with such element types."
       (update-md5-state state sequence :start start :end real-end))
     (finalize-md5-state state)))
 
+(defun md5sum-string (string &key (external-format :default) (start 0) end)
+  "Calculate the MD5 message-digest of the binary representation
+of STRING (as octets) in EXTERNAL-FORMAT. The boundaries START
+and END refer to character positions in the string, not to octets
+in the resulting binary representation."
+  (declare (optimize (speed 3) (space 0) (debug 0))
+           (type string string))
+  (md5sum-sequence
+   (sb-ext:string-to-octets string
+                            :external-format external-format
+                            :start start :end end)))
+
 (defconstant +buffer-size+ (* 128 1024)
   "Size of internal buffer to use for md5sum-stream and md5sum-file
 operations.  This should be a multiple of 64, the MD5 block size.")
@@ -543,8 +541,8 @@ operations.  This should be a multiple of 64, the MD5 block size.")
 (deftype buffer-index () `(integer 0 ,+buffer-size+))
 
 (defun md5sum-stream (stream)
-  "Calculate an MD5 message-digest of the contents of stream.  Its
-element-type has to be either (unsigned-byte 8) or character."
+  "Calculate an MD5 message-digest of the contents of STREAM, whose
+element-type has to be (UNSIGNED-BYTE 8)."
   (declare (optimize (speed 3) (space 0) (debug 0)))
   (let ((state (make-md5-state)))
     (declare (type md5-state state))