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[Help-smalltalk] [PATCH] Digest package


From: Paolo Bonzini
Subject: [Help-smalltalk] [PATCH] Digest package
Date: Sat, 21 Jul 2007 11:34:13 +0200
User-agent: Thunderbird 2.0.0.5 (Macintosh/20070716)

This adds SHA1 support and turns the MD5 package into the Digest package. The old name is still usable.

Paolo
2007-07-17  Paolo Bonzini  <address@hidden>

        * lib-src/sha1.c: New.
        * lib-src/sha1.h: New.

        * packages/digest/package.xml: Add new files, rename module.
        * packages/digest/digest.st: New.
        * packages/digest/md5.st: Adjust for new MessageDigest superclass.
        * packages/digest/sha1.st: New.
        * packages/digest/md5.c: Rename to...
        * packages/digest/digest.c: ... this.  Add SHA1 wrappers.
        * packages/digest/md5tests.st: Rename to...
        * packages/digest/mdtests.st: ... this.  Add SHA1 tests.

* looking for address@hidden/smalltalk--devo--2.2--patch-475 to compare with
* comparing to address@hidden/smalltalk--devo--2.2--patch-475
A  lib-src/sha1.c
A  lib-src/sha1.h
A  packages/digest/ChangeLog
A  packages/digest/digest.st
A  packages/digest/sha1.st
M  packages/digest/mdtests.st
M  lib-src/ChangeLog
M  tests/testsuite.at
M  tests/testsuite
M  packages/digest/Makefile.am
M  packages/digest/package.xml
M  configure.ac
M  packages/digest/digest.c
M  packages/digest/md5.st
M  lib-src/Makefile.am
M  packages.xml
/> packages/md5 packages/digest
=> packages/md5/md5.c   packages/digest/digest.c
=> packages/md5/md5tests.st     packages/digest/mdtests.st

* modified files

--- orig/configure.ac
+++ mod/configure.ac
@@ -294,7 +294,7 @@ GST_PACKAGE([Iconv], [iconv],
   [am_cv_func_iconv],
   [Makefile], [iconv.la])
 GST_PACKAGE([Java], [java])
-GST_PACKAGE([MD5], [md5], [], [], [Makefile], [md5.la])
+GST_PACKAGE([Digest], [digest], [], [], [Makefile], [digest.la])
 GST_PACKAGE([MySQL], [mysql])
 GST_PACKAGE([NCurses],
   [ncurses],


--- orig/lib-src/Makefile.am
+++ mod/lib-src/Makefile.am
@@ -5,11 +5,11 @@ library_la_DEPENDENCIES =  @LTLIBOBJS@ @
 
 # These are to be included *always*, the rest are driven by configure.in
 library_la_SOURCES = \
-       qsort.c getopt.c getopt1.c md5.c avltrees.c rbtrees.c \
+       qsort.c getopt.c getopt1.c md5.c sha1.c avltrees.c rbtrees.c \
        strspell.c signalx.c ltdl.c regex.c socketx.c
 
 noinst_HEADERS = \
-       obstack.h poll_.h getopt.h md5.h ansidecl.h strspell.h \
+       obstack.h poll_.h getopt.h md5.h sha1.h ansidecl.h strspell.h \
        mathl.h trigl.h avltrees.h rbtrees.h trigl.c sincosl.c \
        signalx.h socketx.h ltdl.h regex.h
 


--- orig/packages.xml
+++ mod/packages.xml
@@ -1,5 +1,10 @@
 <packages>
 <package>
+  <name>MD5</name>
+  <prereq>Digest</prereq>
+</package>
+
+<package>
   <name>Regex</name>
 </package>
 


--- orig/packages/md5/Makefile.am
+++ mod/packages/digest/Makefile.am
@@ -1,9 +1,9 @@
 gst_module_ldflags = -rpath $(pkglibdir) -release $(VERSION) -module \
         -no-undefined -export-symbols-regex gst_initModule
 
-pkglib_LTLIBRARIES = md5.la
-md5_la_SOURCES = md5.c
-md5_la_LIBADD = ../../lib-src/library.la
-md5_la_LDFLAGS = $(gst_module_ldflags)
+pkglib_LTLIBRARIES = digest.la
+digest_la_SOURCES = digest.c
+digest_la_LIBADD = ../../lib-src/library.la
+digest_la_LDFLAGS = $(gst_module_ldflags)
 
 AM_CPPFLAGS = -I$(top_srcdir)/libgst -I$(top_srcdir)/lib-src 


--- orig/packages/md5/md5.c
+++ mod/packages/digest/digest.c
@@ -1,13 +1,13 @@
 /***********************************************************************
  *
- *     MD5 interface definitions for GNU Smalltalk 
+ *     Digest module definitions for GNU Smalltalk 
  *
  *
  ***********************************************************************/
 
 /***********************************************************************
  *
- * Copyright 2002, 2006 Free Software Foundation, Inc.
+ * Copyright 2005, 2007 Free Software Foundation, Inc.
  * Written by Paolo Bonzini.
  *
  * This file is part of GNU Smalltalk.
@@ -57,11 +57,12 @@
 #endif
 
 #include "md5.h"
+#include "sha1.h"
 
 #include "gstpub.h"
 
 static VMProxy *vmProxy;
-static OOP MD5AllocOOP (void);
+static OOP SHA1AllocOOP (void);
 
 OOP
 MD5AllocOOP (void)
@@ -71,6 +72,14 @@ MD5AllocOOP (void)
   return vmProxy->byteArrayToOOP ((char *) &ctx, sizeof (ctx));
 }
 
+OOP
+SHA1AllocOOP (void)
+{
+  struct sha1_ctx ctx;
+  sha1_init_ctx (&ctx);
+  return vmProxy->byteArrayToOOP ((char *) &ctx, sizeof (ctx));
+}
+
 void
 gst_initModule (VMProxy * proxy)
 {
@@ -78,4 +87,8 @@ gst_initModule (VMProxy * proxy)
   vmProxy->defineCFunc ("MD5AllocOOP", MD5AllocOOP);
   vmProxy->defineCFunc ("MD5Update", md5_process_bytes);
   vmProxy->defineCFunc ("MD5Final", md5_finish_ctx);
+
+  vmProxy->defineCFunc ("SHA1AllocOOP", SHA1AllocOOP);
+  vmProxy->defineCFunc ("SHA1Update", sha1_process_bytes);
+  vmProxy->defineCFunc ("SHA1Final", sha1_finish_ctx);
 }


--- orig/packages/md5/md5.st
+++ mod/packages/digest/md5.st
@@ -1,6 +1,6 @@
 "======================================================================
 |
-|   MD5 module declarations
+|   MD5 class declarations
 |
 |
  ======================================================================"
@@ -8,7 +8,7 @@
 
 "======================================================================
 |
-| Copyright 2001, 2005 Free Software Foundation, Inc.
+| Copyright 2001, 2005, 2007 Free Software Foundation, Inc.
 | Written by Paolo Bonzini
 |
 | This file is part of the GNU Smalltalk class library.
@@ -30,12 +30,18 @@
 |
  ======================================================================"
 
-Object subclass: #MD5
-       instanceVariableNames: 'state'
+MessageDigest subclass: #MD5
+       instanceVariableNames: ''
        classVariableNames: ''
        poolDictionaries: ''
        category: 'Examples-Modules'!
 
+!MD5 class methodsFor: 'C call-outs'!
+
+new
+    ^self basicNew initialize
+! !
+
 !MD5 methodsFor: 'C call-outs'!
 
 newState
@@ -50,40 +56,16 @@ finalize: state in: digest
     <cCall: 'MD5Final' returning: #void args: #(#byteArray #byteArrayOut)>
 ! !
 
-!MD5 class methodsFor: 'instance creation'!
-
-new
-    ^self basicNew initialize
-!
-
-new: initialString
-    ^self basicNew initialize; nextPutAll: initialString; yourself
-! !
-
-!MD5 class methodsFor: 'checksumming'!
-
-digestOf: aStringOrStream
-    ^(self new: aStringOrStream) digest
-!
-
-hexDigestOf: aStringOrStream
-    ^(self new: aStringOrStream) hexDigest
-!
-
 !MD5 methodsFor: 'initialization'!
 
 initialize
-    state := self newState
+    self state: self newState
 ! !
 
 !MD5 methodsFor: 'checksumming'!
 
-copy
-    ^self deepCopy
-!
-
 nextPut: char
-    self combine: (String with: char) size: 1 into: state
+    self combine: (String with: char) size: 1 into: self state
 !
 
 nextPutAll: aStringOrStream
@@ -93,7 +75,7 @@ nextPutAll: aStringOrStream
            self
                combine: aStringOrStream
                size: aStringOrStream size
-               into: state
+               into: self state
        ]
        ifFalse: [
            buffer := aStringOrStream species new: 1024.
@@ -102,46 +84,17 @@ nextPutAll: aStringOrStream
                n := n + 1.
                buffer at: n put: each.
                n = 1024 ifTrue: [
-                   self combine: buffer size: n into: state.
+                   self combine: buffer size: n into: self state.
                    n := 0
                ]
            ].
-           self combine: buffer size: n into: state.
+           self combine: buffer size: n into: self state.
        ]
 !
 
-partialDigest
-    ^self digestFor: state copy
-!
-
 digest
-    ^self digestFor: state
-!
-
-partialHexDigest
-    ^self hexDigestFor: state copy
-!
-
-hexDigest
-    ^self hexDigestFor: state
-! !
-
-!MD5 methodsFor: 'private'!
-
-digestFor: aState
     | answer |
     answer := ByteArray new: 16.
-    self finalize: aState in: answer.
+    self finalize: self state in: answer.
     ^answer
-!
-
-hexDigestFor: aState
-    | digest answer |
-    digest := self digestFor: aState.
-    answer := String new: 32.
-    digest keysAndValuesDo: [ :i :each |
-       answer at: i + i - 1 put: (Character digitValue: each // 16).
-       answer at: i + i put: (Character digitValue: each \\ 16)
-    ].
-    ^answer asLowercase
 ! !


--- orig/packages/md5/md5tests.st
+++ mod/packages/digest/mdtests.st
@@ -1,6 +1,6 @@
 "======================================================================
 |
-|   MD5 tests declarations
+|   Message digest tests declarations
 |
 |
  ======================================================================"
@@ -28,54 +28,59 @@
 |
  ======================================================================"
 
-TestCase subclass: #MD5Test
+TestCase subclass: #MessageDigestTest
        instanceVariableNames: ''
        classVariableNames: ''
        poolDictionaries: ''
        category: 'Examples-Modules'!
 
-!MD5Test methodsFor: 'test vectors'!
+!MessageDigestTest methodsFor: 'test vectors'!
 
 nullDigest
-    ^#[16rD4 16r1D 16r8C 16rD9 16r8F 16r00 16rB2 16r04
-       16rE9 16r80 16r09 16r98 16rEC 16rF8 16r42 16r7E]!
+    ^self hexToByteArray: self hexNullDigest!
 
 hexNullDigest
-    ^'d41d8cd98f00b204e9800998ecf8427e'!
+    self subclassResponsibility!
 
 abcDigest
-    ^#[16r90 16r01 16r50 16r98 16r3C 16rD2 16r4F 16rB0
-       16rD6 16r96 16r3F 16r7D 16r28 16rE1 16r7F 16r72]!
+    ^self hexToByteArray: self hexAbcDigest!
 
 hexAbcDigest
-    ^'900150983cd24fb0d6963f7d28e17f72'!
+    self subclassResponsibility!
 
 abcdefDigest
-    ^#[16rE8 16r0B 16r50 16r17 16r09 16r89 16r50 16rFC
-       16r58 16rAA 16rD8 16r3C 16r8C 16r14 16r97 16r8E]!
+    ^self hexToByteArray: self hexAbcdefDigest!
 
 hexAbcdefDigest
-    ^'e80b5017098950fc58aad83c8c14978e'!
+    self subclassResponsibility!
 
 size64
     ^(2 to: 37) inject: '' into: [ :a :b | a, b printString ]!
 
 size64Digest
-    ^#[16r16 16r5B 16r2B 16r14 16rEC 16rCD 16rE0 16r3D
-       16rE4 16r74 16r2A 16r2F 16r93 16r90 16rE1 16rA1]!
+    ^self hexToByteArray: self hexSize64Digest!
 
 hexSize64Digest
-    ^'165b2b14eccde03de4742a2f9390e1a1'!
+    self subclassResponsibility!
 
 size128
     ^(2 to: 69) inject: '' into: [ :a :b | a, b printString ]!
 
 size128Digest
-    ^#[16r59 16rBD 16rA0 16r9A 16r8B 16r3E 16r1D 16r18
-       16r62 16r37 16rED 16r0F 16rED 16r34 16rD8 16r7A]!
+    ^self hexToByteArray: self hexSize128Digest!
 
 hexSize128Digest
-    ^'59bda09a8b3e1d186237ed0fed34d87a'!
+    self subclassResponsibility!
+
+hexToByteArray: hex
+    | ba |
+    ba := ByteArray new: hex size / 2.
+    1 to: hex size by: 2 do: [ :i |
+       ba
+           at: i // 2 + 1
+           put: (hex at: i) asUppercase digitValue * 16
+                + (hex at: i + 1) asUppercase digitValue ].
+    ^ba!
 
 allTestCases
     ^{ '' -> self nullDigest.
@@ -91,37 +96,37 @@ allHexTestCases
        self size64 -> self hexSize64Digest.
        self size128 -> self hexSize128Digest }!
 
-!MD5Test methodsFor: 'testing'!
+!MessageDigestTest methodsFor: 'testing'!
 
 testDigestOf
     self allTestCases do: [ :each |
-        self assert: (MD5 digestOf: each key) = each value ]!
+        self assert: (self digestClass digestOf: each key) = each value ]!
 
 testByteArray
     self allTestCases do: [ :each |
-        self assert: (MD5 digestOf: each key asByteArray) = each value ]!
+        self assert: (self digestClass digestOf: each key asByteArray) = each 
value ]!
 
 testHexDigestOf
     self allHexTestCases do: [ :each |
-        self assert: (MD5 hexDigestOf: each key) = each value ]!
+        self assert: (self digestClass hexDigestOf: each key) = each value ]!
 
 testNextPut
     self allTestCases do: [ :each |
         | md5 |
-        md5 := MD5 new.
+        md5 := self digestClass new.
         each key do: [ :ch | md5 nextPut: ch ].
         self assert: md5 digest = each value ]!
 
 testNextPutAll
     self allTestCases do: [ :each |
         | md5 |
-        md5 := MD5 new.
+        md5 := self digestClass new.
         md5 nextPutAll: each key readStream.
         self assert: md5 digest = each value ]!
 
 testPartial
     | md5 |
-    md5 := MD5 new.
+    md5 := self digestClass new.
     md5 nextPutAll: 'abc'.
     self assert: md5 partialDigest = self abcDigest.
     md5 nextPutAll: 'def'.
@@ -130,9 +135,61 @@ testPartial
 
 testPartialHex
     | md5 |
-    md5 := MD5 new.
+    md5 := self digestClass new.
     md5 nextPutAll: 'abc'.
     self assert: md5 partialHexDigest = self hexAbcDigest.
     md5 nextPutAll: 'def'.
     self assert: md5 partialHexDigest = self hexAbcdefDigest.
     self assert: md5 hexDigest = self hexAbcdefDigest! !
+
+MessageDigestTest subclass: #MD5Test
+       instanceVariableNames: ''
+       classVariableNames: ''
+       poolDictionaries: ''
+       category: 'Examples-Modules'!
+
+!MD5Test methodsFor: 'test vectors'!
+
+hexNullDigest
+    ^'d41d8cd98f00b204e9800998ecf8427e'!
+
+hexAbcDigest
+    ^'900150983cd24fb0d6963f7d28e17f72'!
+
+hexAbcdefDigest
+    ^'e80b5017098950fc58aad83c8c14978e'!
+
+hexSize64Digest
+    ^'165b2b14eccde03de4742a2f9390e1a1'!
+
+hexSize128Digest
+    ^'59bda09a8b3e1d186237ed0fed34d87a'!
+
+digestClass
+    ^MD5! !
+
+MessageDigestTest subclass: #SHA1Test
+       instanceVariableNames: ''
+       classVariableNames: ''
+       poolDictionaries: ''
+       category: 'Examples-Modules'!
+
+!SHA1Test methodsFor: 'test vectors'!
+
+hexNullDigest
+    ^'da39a3ee5e6b4b0d3255bfef95601890afd80709'!
+
+hexAbcDigest
+    ^'a9993e364706816aba3e25717850c26c9cd0d89d'!
+
+hexAbcdefDigest
+    ^'1f8ac10f23c5b5bc1167bda84b833e5c057a77d2'!
+
+hexSize64Digest
+    ^'6a90ea3e17064652ed5406d3e10eb9ac2ee9a21e'!
+
+hexSize128Digest
+    ^'e02f6ccdd12ebf0958e18aea9fed8fbe818a223c'!
+
+digestClass
+    ^SHA1! !


--- orig/packages/md5/package.xml
+++ mod/packages/digest/package.xml
@@ -1,13 +1,17 @@
 <package>
-  <name>MD5</name>
+  <name>Digest</name>
+  <filein>digest.st</filein>
   <filein>md5.st</filein>
-  <module>md5</module>
+  <filein>sha1.st</filein>
+  <module>digest</module>
 
   <test>
-   <sunit>MD5Test</sunit>
-   <filein>md5tests.st</filein>
+   <sunit>MD5Test SHA1Test</sunit>
+   <filein>mdtests.st</filein>
   </test>
 
+  <file>digest.st</file>
   <file>md5.st</file>
-  <file>md5tests.st</file>
+  <file>sha1.st</file>
+  <file>mdtests.st</file>
 </package>


--- orig/tests/testsuite
+++ mod/tests/testsuite
@@ -736,9 +736,9 @@ at_help_all="1;testsuite.at:27;arrays.st
 108;testsuite.at:142;Continuations;Continuations SUnit;
 109;testsuite.at:143;DebugTools;DebugTools SUnit;
 110;testsuite.at:144;DhbNumericalMethods;DhbNumericalMethods SUnit;
-111;testsuite.at:145;GDBM;GDBM SUnit;
-112;testsuite.at:146;Iconv;Iconv SUnit;
-113;testsuite.at:147;MD5;MD5 SUnit;
+111;testsuite.at:145;Digest;Digest SUnit;
+112;testsuite.at:146;GDBM;GDBM SUnit;
+113;testsuite.at:147;Iconv;Iconv SUnit;
 114;testsuite.at:148;ZLib;ZLib SUnit;
 "
 
@@ -8660,10 +8660,10 @@ $at_traceon
     at_status=`cat "$at_status_file"`
     ;;
 
-  111 ) # 111. testsuite.at:145: GDBM
+  111 ) # 111. testsuite.at:145: Digest
     at_setup_line='testsuite.at:145'
-    at_desc="GDBM"
-    $at_quiet $ECHO_N "111: GDBM                                           
$ECHO_C"
+    at_desc="Digest"
+    $at_quiet $ECHO_N "111: Digest                                         
$ECHO_C"
     at_xfail=no
     echo "#                             -*- compilation -*-" >> "$at_group_log"
     (
@@ -8679,36 +8679,25 @@ $at_traceon
   esac
 
   $at_traceoff
-echo "$at_srcdir/testsuite.at:145: { (cd \$abs_top_builddir && gst 
\$image_path -f \$abs_top_srcdir/scripts/Test.st -p GDBM
-    ret=\$?
-    case \$ret in
-      2) exit 77 ;;
-      0|1) exit \$ret ;;
-    esac); echo exit \$? > retcode; } | tr -d '\\r'; . retcode"
+echo "$at_srcdir/testsuite.at:145: { (cd \$abs_top_builddir && gst 
\$image_path -f \$abs_top_srcdir/scripts/Test.st -p Digest); echo exit \$? > 
retcode; } | tr -d '\\r'; . retcode"
 echo testsuite.at:145 >"$at_check_line_file"
 
 at_trace_this=
 if test -n "$at_traceon"; then
-    echo 'Not enabling shell tracing (command contains an embedded newline)'
+    case "{ (cd $abs_top_builddir && gst $image_path -f 
$abs_top_srcdir/scripts/Test.st -p Digest); echo exit $? > retcode; } | tr -d 
'\\r'; . retcode" in
+        *'
+'*) echo 'Not enabling shell tracing (command contains an embedded newline)' ;;
+ *) at_trace_this=yes ;;
+    esac
 fi
 
 if test -n "$at_trace_this"; then
-    ( $at_traceon; { (cd $abs_top_builddir && gst $image_path -f 
$abs_top_srcdir/scripts/Test.st -p GDBM
-    ret=$?
-    case $ret in
-      2) exit 77 ;;
-      0|1) exit $ret ;;
-    esac); echo exit $? > retcode; } | tr -d '\r'; . retcode ) >"$at_stdout" 
2>"$at_stder1"
+    ( $at_traceon; { (cd $abs_top_builddir && gst $image_path -f 
$abs_top_srcdir/scripts/Test.st -p Digest); echo exit $? > retcode; } | tr -d 
'\r'; . retcode ) >"$at_stdout" 2>"$at_stder1"
     at_status=$?
     grep '^ *+' "$at_stder1" >&2
     grep -v '^ *+' "$at_stder1" >"$at_stderr"
 else
-    ( :; { (cd $abs_top_builddir && gst $image_path -f 
$abs_top_srcdir/scripts/Test.st -p GDBM
-    ret=$?
-    case $ret in
-      2) exit 77 ;;
-      0|1) exit $ret ;;
-    esac); echo exit $? > retcode; } | tr -d '\r'; . retcode ) >"$at_stdout" 
2>"$at_stderr"
+    ( :; { (cd $abs_top_builddir && gst $image_path -f 
$abs_top_srcdir/scripts/Test.st -p Digest); echo exit $? > retcode; } | tr -d 
'\r'; . retcode ) >"$at_stdout" 2>"$at_stderr"
     at_status=$?
 fi
 
@@ -8737,10 +8726,10 @@ $at_traceon
     at_status=`cat "$at_status_file"`
     ;;
 
-  112 ) # 112. testsuite.at:146: Iconv
+  112 ) # 112. testsuite.at:146: GDBM
     at_setup_line='testsuite.at:146'
-    at_desc="Iconv"
-    $at_quiet $ECHO_N "112: Iconv                                          
$ECHO_C"
+    at_desc="GDBM"
+    $at_quiet $ECHO_N "112: GDBM                                           
$ECHO_C"
     at_xfail=no
     echo "#                             -*- compilation -*-" >> "$at_group_log"
     (
@@ -8756,7 +8745,7 @@ $at_traceon
   esac
 
   $at_traceoff
-echo "$at_srcdir/testsuite.at:146: { (cd \$abs_top_builddir && gst 
\$image_path -f \$abs_top_srcdir/scripts/Test.st -p Iconv
+echo "$at_srcdir/testsuite.at:146: { (cd \$abs_top_builddir && gst 
\$image_path -f \$abs_top_srcdir/scripts/Test.st -p GDBM
     ret=\$?
     case \$ret in
       2) exit 77 ;;
@@ -8770,7 +8759,7 @@ if test -n "$at_traceon"; then
 fi
 
 if test -n "$at_trace_this"; then
-    ( $at_traceon; { (cd $abs_top_builddir && gst $image_path -f 
$abs_top_srcdir/scripts/Test.st -p Iconv
+    ( $at_traceon; { (cd $abs_top_builddir && gst $image_path -f 
$abs_top_srcdir/scripts/Test.st -p GDBM
     ret=$?
     case $ret in
       2) exit 77 ;;
@@ -8780,7 +8769,7 @@ if test -n "$at_trace_this"; then
     grep '^ *+' "$at_stder1" >&2
     grep -v '^ *+' "$at_stder1" >"$at_stderr"
 else
-    ( :; { (cd $abs_top_builddir && gst $image_path -f 
$abs_top_srcdir/scripts/Test.st -p Iconv
+    ( :; { (cd $abs_top_builddir && gst $image_path -f 
$abs_top_srcdir/scripts/Test.st -p GDBM
     ret=$?
     case $ret in
       2) exit 77 ;;
@@ -8814,10 +8803,10 @@ $at_traceon
     at_status=`cat "$at_status_file"`
     ;;
 
-  113 ) # 113. testsuite.at:147: MD5
+  113 ) # 113. testsuite.at:147: Iconv
     at_setup_line='testsuite.at:147'
-    at_desc="MD5"
-    $at_quiet $ECHO_N "113: MD5                                            
$ECHO_C"
+    at_desc="Iconv"
+    $at_quiet $ECHO_N "113: Iconv                                          
$ECHO_C"
     at_xfail=no
     echo "#                             -*- compilation -*-" >> "$at_group_log"
     (
@@ -8833,25 +8822,36 @@ $at_traceon
   esac
 
   $at_traceoff
-echo "$at_srcdir/testsuite.at:147: { (cd \$abs_top_builddir && gst 
\$image_path -f \$abs_top_srcdir/scripts/Test.st -p MD5); echo exit \$? > 
retcode; } | tr -d '\\r'; . retcode"
+echo "$at_srcdir/testsuite.at:147: { (cd \$abs_top_builddir && gst 
\$image_path -f \$abs_top_srcdir/scripts/Test.st -p Iconv
+    ret=\$?
+    case \$ret in
+      2) exit 77 ;;
+      0|1) exit \$ret ;;
+    esac); echo exit \$? > retcode; } | tr -d '\\r'; . retcode"
 echo testsuite.at:147 >"$at_check_line_file"
 
 at_trace_this=
 if test -n "$at_traceon"; then
-    case "{ (cd $abs_top_builddir && gst $image_path -f 
$abs_top_srcdir/scripts/Test.st -p MD5); echo exit $? > retcode; } | tr -d 
'\\r'; . retcode" in
-        *'
-'*) echo 'Not enabling shell tracing (command contains an embedded newline)' ;;
- *) at_trace_this=yes ;;
-    esac
+    echo 'Not enabling shell tracing (command contains an embedded newline)'
 fi
 
 if test -n "$at_trace_this"; then
-    ( $at_traceon; { (cd $abs_top_builddir && gst $image_path -f 
$abs_top_srcdir/scripts/Test.st -p MD5); echo exit $? > retcode; } | tr -d 
'\r'; . retcode ) >"$at_stdout" 2>"$at_stder1"
+    ( $at_traceon; { (cd $abs_top_builddir && gst $image_path -f 
$abs_top_srcdir/scripts/Test.st -p Iconv
+    ret=$?
+    case $ret in
+      2) exit 77 ;;
+      0|1) exit $ret ;;
+    esac); echo exit $? > retcode; } | tr -d '\r'; . retcode ) >"$at_stdout" 
2>"$at_stder1"
     at_status=$?
     grep '^ *+' "$at_stder1" >&2
     grep -v '^ *+' "$at_stder1" >"$at_stderr"
 else
-    ( :; { (cd $abs_top_builddir && gst $image_path -f 
$abs_top_srcdir/scripts/Test.st -p MD5); echo exit $? > retcode; } | tr -d 
'\r'; . retcode ) >"$at_stdout" 2>"$at_stderr"
+    ( :; { (cd $abs_top_builddir && gst $image_path -f 
$abs_top_srcdir/scripts/Test.st -p Iconv
+    ret=$?
+    case $ret in
+      2) exit 77 ;;
+      0|1) exit $ret ;;
+    esac); echo exit $? > retcode; } | tr -d '\r'; . retcode ) >"$at_stdout" 
2>"$at_stderr"
     at_status=$?
 fi
 


--- orig/tests/testsuite.at
+++ mod/tests/testsuite.at
@@ -142,7 +142,7 @@ AT_BANNER([Other packages.])
 AT_PACKAGE_TEST([Continuations])
 AT_PACKAGE_TEST([DebugTools])
 AT_PACKAGE_TEST([DhbNumericalMethods])
+AT_PACKAGE_TEST([Digest])
 AT_OPTIONAL_PACKAGE_TEST([GDBM])
 AT_OPTIONAL_PACKAGE_TEST([Iconv])
-AT_PACKAGE_TEST([MD5])
 AT_OPTIONAL_PACKAGE_TEST([ZLib])



* added files

--- /dev/null
+++ mod/lib-src/sha1.c
@@ -0,0 +1,416 @@
+/* sha1.c - Functions to compute SHA1 message digest of files or
+   memory blocks according to the NIST specification FIPS-180-1.
+
+   Copyright (C) 2000, 2001, 2003, 2004, 2005, 2006 Free Software
+   Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 2, or (at your option) any
+   later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+/* Written by Scott G. Miller
+   Credits:
+      Robert Klep <address@hidden>  -- Expansion function fix
+*/
+
+#include <config.h>
+
+#include "sha1.h"
+
+#include <stddef.h>
+#include <string.h>
+
+#if USE_UNLOCKED_IO
+# include "unlocked-io.h"
+#endif
+
+#ifdef WORDS_BIGENDIAN
+# define SWAP(n) (n)
+#else
+# define SWAP(n) \
+    (((n) << 24) | (((n) & 0xff00) << 8) | (((n) >> 8) & 0xff00) | ((n) >> 24))
+#endif
+
+#define BLOCKSIZE 4096
+#if BLOCKSIZE % 64 != 0
+# error "invalid BLOCKSIZE"
+#endif
+
+/* This array contains the bytes used to pad the buffer to the next
+   64-byte boundary.  (RFC 1321, 3.1: Step 1)  */
+static const unsigned char fillbuf[64] = { 0x80, 0 /* , 0, 0, ...  */ };
+
+
+/* Take a pointer to a 160 bit block of data (five 32 bit ints) and
+   initialize it to the start constants of the SHA1 algorithm.  This
+   must be called before using hash in the call to sha1_hash.  */
+void
+sha1_init_ctx (struct sha1_ctx *ctx)
+{
+  ctx->A = 0x67452301;
+  ctx->B = 0xefcdab89;
+  ctx->C = 0x98badcfe;
+  ctx->D = 0x10325476;
+  ctx->E = 0xc3d2e1f0;
+
+  ctx->total[0] = ctx->total[1] = 0;
+  ctx->buflen = 0;
+}
+
+/* Put result from CTX in first 20 bytes following RESBUF.  The result
+   must be in little endian byte order.
+
+   IMPORTANT: On some systems it is required that RESBUF is correctly
+   aligned for a 32-bit value.  */
+void *
+sha1_read_ctx (const struct sha1_ctx *ctx, void *resbuf)
+{
+  ((uint32_t *) resbuf)[0] = SWAP (ctx->A);
+  ((uint32_t *) resbuf)[1] = SWAP (ctx->B);
+  ((uint32_t *) resbuf)[2] = SWAP (ctx->C);
+  ((uint32_t *) resbuf)[3] = SWAP (ctx->D);
+  ((uint32_t *) resbuf)[4] = SWAP (ctx->E);
+
+  return resbuf;
+}
+
+/* Process the remaining bytes in the internal buffer and the usual
+   prolog according to the standard and write the result to RESBUF.
+
+   IMPORTANT: On some systems it is required that RESBUF is correctly
+   aligned for a 32-bit value.  */
+void *
+sha1_finish_ctx (struct sha1_ctx *ctx, void *resbuf)
+{
+  /* Take yet unprocessed bytes into account.  */
+  uint32_t bytes = ctx->buflen;
+  size_t size = (bytes < 56) ? 64 / 4 : 64 * 2 / 4;
+
+  /* Now count remaining bytes.  */
+  ctx->total[0] += bytes;
+  if (ctx->total[0] < bytes)
+    ++ctx->total[1];
+
+  /* Put the 64-bit file length in *bits* at the end of the buffer.  */
+  ctx->buffer[size - 2] = SWAP ((ctx->total[1] << 3) | (ctx->total[0] >> 29));
+  ctx->buffer[size - 1] = SWAP (ctx->total[0] << 3);
+
+  memcpy (&((char *) ctx->buffer)[bytes], fillbuf, (size - 2) * 4 - bytes);
+
+  /* Process last bytes.  */
+  sha1_process_block (ctx->buffer, size * 4, ctx);
+
+  return sha1_read_ctx (ctx, resbuf);
+}
+
+/* Compute SHA1 message digest for bytes read from STREAM.  The
+   resulting message digest number will be written into the 16 bytes
+   beginning at RESBLOCK.  */
+int
+sha1_stream (FILE *stream, void *resblock)
+{
+  struct sha1_ctx ctx;
+  char buffer[BLOCKSIZE + 72];
+  size_t sum;
+
+  /* Initialize the computation context.  */
+  sha1_init_ctx (&ctx);
+
+  /* Iterate over full file contents.  */
+  while (1)
+    {
+      /* We read the file in blocks of BLOCKSIZE bytes.  One call of the
+        computation function processes the whole buffer so that with the
+        next round of the loop another block can be read.  */
+      size_t n;
+      sum = 0;
+
+      /* Read block.  Take care for partial reads.  */
+      while (1)
+       {
+         n = fread (buffer + sum, 1, BLOCKSIZE - sum, stream);
+
+         sum += n;
+
+         if (sum == BLOCKSIZE)
+           break;
+
+         if (n == 0)
+           {
+             /* Check for the error flag IFF N == 0, so that we don't
+                exit the loop after a partial read due to e.g., EAGAIN
+                or EWOULDBLOCK.  */
+             if (ferror (stream))
+               return 1;
+             goto process_partial_block;
+           }
+
+         /* We've read at least one byte, so ignore errors.  But always
+            check for EOF, since feof may be true even though N > 0.
+            Otherwise, we could end up calling fread after EOF.  */
+         if (feof (stream))
+           goto process_partial_block;
+       }
+
+      /* Process buffer with BLOCKSIZE bytes.  Note that
+                       BLOCKSIZE % 64 == 0
+       */
+      sha1_process_block (buffer, BLOCKSIZE, &ctx);
+    }
+
+ process_partial_block:;
+
+  /* Process any remaining bytes.  */
+  if (sum > 0)
+    sha1_process_bytes (buffer, sum, &ctx);
+
+  /* Construct result in desired memory.  */
+  sha1_finish_ctx (&ctx, resblock);
+  return 0;
+}
+
+/* Compute SHA1 message digest for LEN bytes beginning at BUFFER.  The
+   result is always in little endian byte order, so that a byte-wise
+   output yields to the wanted ASCII representation of the message
+   digest.  */
+void *
+sha1_buffer (const char *buffer, size_t len, void *resblock)
+{
+  struct sha1_ctx ctx;
+
+  /* Initialize the computation context.  */
+  sha1_init_ctx (&ctx);
+
+  /* Process whole buffer but last len % 64 bytes.  */
+  sha1_process_bytes (buffer, len, &ctx);
+
+  /* Put result in desired memory area.  */
+  return sha1_finish_ctx (&ctx, resblock);
+}
+
+void
+sha1_process_bytes (const void *buffer, size_t len, struct sha1_ctx *ctx)
+{
+  /* When we already have some bits in our internal buffer concatenate
+     both inputs first.  */
+  if (ctx->buflen != 0)
+    {
+      size_t left_over = ctx->buflen;
+      size_t add = 128 - left_over > len ? len : 128 - left_over;
+
+      memcpy (&((char *) ctx->buffer)[left_over], buffer, add);
+      ctx->buflen += add;
+
+      if (ctx->buflen > 64)
+       {
+         sha1_process_block (ctx->buffer, ctx->buflen & ~63, ctx);
+
+         ctx->buflen &= 63;
+         /* The regions in the following copy operation cannot overlap.  */
+         memcpy (ctx->buffer,
+                 &((char *) ctx->buffer)[(left_over + add) & ~63],
+                 ctx->buflen);
+       }
+
+      buffer = (const char *) buffer + add;
+      len -= add;
+    }
+
+  /* Process available complete blocks.  */
+  if (len >= 64)
+    {
+#if !_STRING_ARCH_unaligned
+# define alignof(type) offsetof (struct { char c; type x; }, x)
+# define UNALIGNED_P(p) (((size_t) p) % alignof (uint32_t) != 0)
+      if (UNALIGNED_P (buffer))
+       while (len > 64)
+         {
+           sha1_process_block (memcpy (ctx->buffer, buffer, 64), 64, ctx);
+           buffer = (const char *) buffer + 64;
+           len -= 64;
+         }
+      else
+#endif
+       {
+         sha1_process_block (buffer, len & ~63, ctx);
+         buffer = (const char *) buffer + (len & ~63);
+         len &= 63;
+       }
+    }
+
+  /* Move remaining bytes in internal buffer.  */
+  if (len > 0)
+    {
+      size_t left_over = ctx->buflen;
+
+      memcpy (&((char *) ctx->buffer)[left_over], buffer, len);
+      left_over += len;
+      if (left_over >= 64)
+       {
+         sha1_process_block (ctx->buffer, 64, ctx);
+         left_over -= 64;
+         memcpy (ctx->buffer, &ctx->buffer[16], left_over);
+       }
+      ctx->buflen = left_over;
+    }
+}
+
+/* --- Code below is the primary difference between md5.c and sha1.c --- */
+
+/* SHA1 round constants */
+#define K1 0x5a827999
+#define K2 0x6ed9eba1
+#define K3 0x8f1bbcdc
+#define K4 0xca62c1d6
+
+/* Round functions.  Note that F2 is the same as F4.  */
+#define F1(B,C,D) ( D ^ ( B & ( C ^ D ) ) )
+#define F2(B,C,D) (B ^ C ^ D)
+#define F3(B,C,D) ( ( B & C ) | ( D & ( B | C ) ) )
+#define F4(B,C,D) (B ^ C ^ D)
+
+/* Process LEN bytes of BUFFER, accumulating context into CTX.
+   It is assumed that LEN % 64 == 0.
+   Most of this code comes from GnuPG's cipher/sha1.c.  */
+
+void
+sha1_process_block (const void *buffer, size_t len, struct sha1_ctx *ctx)
+{
+  const uint32_t *words = buffer;
+  size_t nwords = len / sizeof (uint32_t);
+  const uint32_t *endp = words + nwords;
+  uint32_t x[16];
+  uint32_t a = ctx->A;
+  uint32_t b = ctx->B;
+  uint32_t c = ctx->C;
+  uint32_t d = ctx->D;
+  uint32_t e = ctx->E;
+
+  /* First increment the byte count.  RFC 1321 specifies the possible
+     length of the file up to 2^64 bits.  Here we only compute the
+     number of bytes.  Do a double word increment.  */
+  ctx->total[0] += len;
+  if (ctx->total[0] < len)
+    ++ctx->total[1];
+
+#define rol(x, n) (((x) << (n)) | ((uint32_t) (x) >> (32 - (n))))
+
+#define M(I) ( tm =   x[I&0x0f] ^ x[(I-14)&0x0f] \
+                   ^ x[(I-8)&0x0f] ^ x[(I-3)&0x0f] \
+              , (x[I&0x0f] = rol(tm, 1)) )
+
+#define R(A,B,C,D,E,F,K,M)  do { E += rol( A, 5 )     \
+                                     + F( B, C, D )  \
+                                     + K             \
+                                     + M;            \
+                                B = rol( B, 30 );    \
+                              } while(0)
+
+  while (words < endp)
+    {
+      uint32_t tm;
+      int t;
+      for (t = 0; t < 16; t++)
+       {
+         x[t] = SWAP (*words);
+         words++;
+       }
+
+      R( a, b, c, d, e, F1, K1, x[ 0] );
+      R( e, a, b, c, d, F1, K1, x[ 1] );
+      R( d, e, a, b, c, F1, K1, x[ 2] );
+      R( c, d, e, a, b, F1, K1, x[ 3] );
+      R( b, c, d, e, a, F1, K1, x[ 4] );
+      R( a, b, c, d, e, F1, K1, x[ 5] );
+      R( e, a, b, c, d, F1, K1, x[ 6] );
+      R( d, e, a, b, c, F1, K1, x[ 7] );
+      R( c, d, e, a, b, F1, K1, x[ 8] );
+      R( b, c, d, e, a, F1, K1, x[ 9] );
+      R( a, b, c, d, e, F1, K1, x[10] );
+      R( e, a, b, c, d, F1, K1, x[11] );
+      R( d, e, a, b, c, F1, K1, x[12] );
+      R( c, d, e, a, b, F1, K1, x[13] );
+      R( b, c, d, e, a, F1, K1, x[14] );
+      R( a, b, c, d, e, F1, K1, x[15] );
+      R( e, a, b, c, d, F1, K1, M(16) );
+      R( d, e, a, b, c, F1, K1, M(17) );
+      R( c, d, e, a, b, F1, K1, M(18) );
+      R( b, c, d, e, a, F1, K1, M(19) );
+      R( a, b, c, d, e, F2, K2, M(20) );
+      R( e, a, b, c, d, F2, K2, M(21) );
+      R( d, e, a, b, c, F2, K2, M(22) );
+      R( c, d, e, a, b, F2, K2, M(23) );
+      R( b, c, d, e, a, F2, K2, M(24) );
+      R( a, b, c, d, e, F2, K2, M(25) );
+      R( e, a, b, c, d, F2, K2, M(26) );
+      R( d, e, a, b, c, F2, K2, M(27) );
+      R( c, d, e, a, b, F2, K2, M(28) );
+      R( b, c, d, e, a, F2, K2, M(29) );
+      R( a, b, c, d, e, F2, K2, M(30) );
+      R( e, a, b, c, d, F2, K2, M(31) );
+      R( d, e, a, b, c, F2, K2, M(32) );
+      R( c, d, e, a, b, F2, K2, M(33) );
+      R( b, c, d, e, a, F2, K2, M(34) );
+      R( a, b, c, d, e, F2, K2, M(35) );
+      R( e, a, b, c, d, F2, K2, M(36) );
+      R( d, e, a, b, c, F2, K2, M(37) );
+      R( c, d, e, a, b, F2, K2, M(38) );
+      R( b, c, d, e, a, F2, K2, M(39) );
+      R( a, b, c, d, e, F3, K3, M(40) );
+      R( e, a, b, c, d, F3, K3, M(41) );
+      R( d, e, a, b, c, F3, K3, M(42) );
+      R( c, d, e, a, b, F3, K3, M(43) );
+      R( b, c, d, e, a, F3, K3, M(44) );
+      R( a, b, c, d, e, F3, K3, M(45) );
+      R( e, a, b, c, d, F3, K3, M(46) );
+      R( d, e, a, b, c, F3, K3, M(47) );
+      R( c, d, e, a, b, F3, K3, M(48) );
+      R( b, c, d, e, a, F3, K3, M(49) );
+      R( a, b, c, d, e, F3, K3, M(50) );
+      R( e, a, b, c, d, F3, K3, M(51) );
+      R( d, e, a, b, c, F3, K3, M(52) );
+      R( c, d, e, a, b, F3, K3, M(53) );
+      R( b, c, d, e, a, F3, K3, M(54) );
+      R( a, b, c, d, e, F3, K3, M(55) );
+      R( e, a, b, c, d, F3, K3, M(56) );
+      R( d, e, a, b, c, F3, K3, M(57) );
+      R( c, d, e, a, b, F3, K3, M(58) );
+      R( b, c, d, e, a, F3, K3, M(59) );
+      R( a, b, c, d, e, F4, K4, M(60) );
+      R( e, a, b, c, d, F4, K4, M(61) );
+      R( d, e, a, b, c, F4, K4, M(62) );
+      R( c, d, e, a, b, F4, K4, M(63) );
+      R( b, c, d, e, a, F4, K4, M(64) );
+      R( a, b, c, d, e, F4, K4, M(65) );
+      R( e, a, b, c, d, F4, K4, M(66) );
+      R( d, e, a, b, c, F4, K4, M(67) );
+      R( c, d, e, a, b, F4, K4, M(68) );
+      R( b, c, d, e, a, F4, K4, M(69) );
+      R( a, b, c, d, e, F4, K4, M(70) );
+      R( e, a, b, c, d, F4, K4, M(71) );
+      R( d, e, a, b, c, F4, K4, M(72) );
+      R( c, d, e, a, b, F4, K4, M(73) );
+      R( b, c, d, e, a, F4, K4, M(74) );
+      R( a, b, c, d, e, F4, K4, M(75) );
+      R( e, a, b, c, d, F4, K4, M(76) );
+      R( d, e, a, b, c, F4, K4, M(77) );
+      R( c, d, e, a, b, F4, K4, M(78) );
+      R( b, c, d, e, a, F4, K4, M(79) );
+
+      a = ctx->A += a;
+      b = ctx->B += b;
+      c = ctx->C += c;
+      d = ctx->D += d;
+      e = ctx->E += e;
+    }
+}


--- /dev/null
+++ mod/lib-src/sha1.h
@@ -0,0 +1,87 @@
+/* Declarations of functions and data types used for SHA1 sum
+   library functions.
+   Copyright (C) 2000, 2001, 2003, 2005, 2006 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify it
+   under the terms of the GNU General Public License as published by the
+   Free Software Foundation; either version 2, or (at your option) any
+   later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+
+#ifndef SHA1_H
+# define SHA1_H 1
+
+# include <stdio.h>
+# include <stdint.h>
+
+/* Structure to save state of computation between the single steps.  */
+struct sha1_ctx
+{
+  uint32_t A;
+  uint32_t B;
+  uint32_t C;
+  uint32_t D;
+  uint32_t E;
+
+  uint32_t total[2];
+  uint32_t buflen;
+  uint32_t buffer[32];
+};
+
+
+/* Initialize structure containing state of computation. */
+extern void sha1_init_ctx (struct sha1_ctx *ctx);
+
+/* Starting with the result of former calls of this function (or the
+   initialization function update the context for the next LEN bytes
+   starting at BUFFER.
+   It is necessary that LEN is a multiple of 64!!! */
+extern void sha1_process_block (const void *buffer, size_t len,
+                               struct sha1_ctx *ctx);
+
+/* Starting with the result of former calls of this function (or the
+   initialization function update the context for the next LEN bytes
+   starting at BUFFER.
+   It is NOT required that LEN is a multiple of 64.  */
+extern void sha1_process_bytes (const void *buffer, size_t len,
+                               struct sha1_ctx *ctx);
+
+/* Process the remaining bytes in the buffer and put result from CTX
+   in first 20 bytes following RESBUF.  The result is always in little
+   endian byte order, so that a byte-wise output yields to the wanted
+   ASCII representation of the message digest.
+
+   IMPORTANT: On some systems it is required that RESBUF be correctly
+   aligned for a 32 bits value.  */
+extern void *sha1_finish_ctx (struct sha1_ctx *ctx, void *resbuf);
+
+
+/* Put result from CTX in first 20 bytes following RESBUF.  The result is
+   always in little endian byte order, so that a byte-wise output yields
+   to the wanted ASCII representation of the message digest.
+
+   IMPORTANT: On some systems it is required that RESBUF is correctly
+   aligned for a 32 bits value.  */
+extern void *sha1_read_ctx (const struct sha1_ctx *ctx, void *resbuf);
+
+
+/* Compute SHA1 message digest for bytes read from STREAM.  The
+   resulting message digest number will be written into the 20 bytes
+   beginning at RESBLOCK.  */
+extern int sha1_stream (FILE *stream, void *resblock);
+
+/* Compute SHA1 message digest for LEN bytes beginning at BUFFER.  The
+   result is always in little endian byte order, so that a byte-wise
+   output yields to the wanted ASCII representation of the message
+   digest.  */
+extern void *sha1_buffer (const char *buffer, size_t len, void *resblock);
+
+#endif


--- /dev/null
+++ mod/packages/digest/digest.st
@@ -0,0 +1,98 @@
+"======================================================================
+|
+|   MessageDigest abstract class declarations
+|
+|
+ ======================================================================"
+
+
+"======================================================================
+|
+| Copyright 2001, 2005 Free Software Foundation, Inc.
+| Written by Paolo Bonzini
+|
+| This file is part of the GNU Smalltalk class library.
+|
+| The GNU Smalltalk class library is free software; you can redistribute it
+| and/or modify it under the terms of the GNU Lesser General Public License
+| as published by the Free Software Foundation; either version 2.1, or (at
+| your option) any later version.
+|
+| The GNU Smalltalk class library is distributed in the hope that it will be
+| useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
+| General Public License for more details.
+|
+| You should have received a copy of the GNU Lesser General Public License
+| along with the GNU Smalltalk class library; see the file COPYING.LIB.
+| If not, write to the Free Software Foundation, 59 Temple Place - Suite
+| 330, Boston, MA 02110-1301, USA.
+|
+ ======================================================================"
+
+Object subclass: #MessageDigest
+       instanceVariableNames: 'state'
+       classVariableNames: ''
+       poolDictionaries: ''
+       category: 'Examples-Modules'!
+
+!MessageDigest class methodsFor: 'instance creation'!
+
+new: initialString
+    ^self new nextPutAll: initialString; yourself
+! !
+
+!MessageDigest class methodsFor: 'checksumming'!
+
+digestOf: aStringOrStream
+    ^(self new: aStringOrStream) digest
+!
+
+hexDigestOf: aStringOrStream
+    ^(self new: aStringOrStream) hexDigest
+!
+
+!MessageDigest methodsFor: 'checksumming'!
+
+copy
+    ^self deepCopy
+!
+
+partialDigest
+    | s digest |
+    s := state copy.
+    digest := self digest.
+    state := s.
+    ^digest
+!
+
+digest
+    self subclassResponsibility
+!
+
+partialHexDigest
+    | s digest |
+    s := state copy.
+    digest := self hexDigest.
+    state := s.
+    ^digest
+!
+
+hexDigest
+    | digest answer |
+    digest := self digest.
+    answer := String new: digest size * 2.
+    digest keysAndValuesDo: [ :i :each |
+       answer at: i + i - 1 put: (Character digitValue: each // 16).
+       answer at: i + i put: (Character digitValue: each \\ 16)
+    ].
+    ^answer asLowercase
+! !
+
+!MessageDigest methodsFor: 'private'!
+
+state
+    ^state!
+
+state: anObject
+    state := anObject! !


--- /dev/null
+++ mod/packages/digest/sha1.st
@@ -0,0 +1,100 @@
+"======================================================================
+|
+|   SHA1 class declarations
+|
+|
+ ======================================================================"
+
+
+"======================================================================
+|
+| Copyright 2007 Free Software Foundation, Inc.
+| Written by Paolo Bonzini
+|
+| This file is part of the GNU Smalltalk class library.
+|
+| The GNU Smalltalk class library is free software; you can redistribute it
+| and/or modify it under the terms of the GNU Lesser General Public License
+| as published by the Free Software Foundation; either version 2.1, or (at
+| your option) any later version.
+|
+| The GNU Smalltalk class library is distributed in the hope that it will be
+| useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
+| General Public License for more details.
+|
+| You should have received a copy of the GNU Lesser General Public License
+| along with the GNU Smalltalk class library; see the file COPYING.LIB.
+| If not, write to the Free Software Foundation, 59 Temple Place - Suite
+| 330, Boston, MA 02110-1301, USA.
+|
+ ======================================================================"
+
+MessageDigest subclass: #SHA1
+       instanceVariableNames: ''
+       classVariableNames: ''
+       poolDictionaries: ''
+       category: 'Examples-Modules'!
+
+!SHA1 class methodsFor: 'C call-outs'!
+
+new
+    ^self basicNew initialize
+! !
+
+!SHA1 methodsFor: 'C call-outs'!
+
+newState
+    <cCall: 'SHA1AllocOOP' returning: #smalltalk args: #()>
+!
+
+combine: input size: len into: context
+    <cCall: 'SHA1Update' returning: #void args: #(#byteArray #int 
#byteArrayOut)>
+!
+
+finalize: state in: digest
+    <cCall: 'SHA1Final' returning: #void args: #(#byteArray #byteArrayOut)>
+! !
+
+!SHA1 methodsFor: 'initialization'!
+
+initialize
+    self state: self newState
+! !
+
+!SHA1 methodsFor: 'checksumming'!
+
+nextPut: char
+    self combine: (String with: char) size: 1 into: self state
+!
+
+nextPutAll: aStringOrStream
+    | buffer n |
+    (aStringOrStream isKindOf: String)
+       ifTrue: [
+           self
+               combine: aStringOrStream
+               size: aStringOrStream size
+               into: self state
+       ]
+       ifFalse: [
+           buffer := aStringOrStream species new: 1024.
+           n := 0.
+           aStringOrStream do: [ :each |
+               n := n + 1.
+               buffer at: n put: each.
+               n = 1024 ifTrue: [
+                   self combine: buffer size: n into: self state.
+                   n := 0
+               ]
+           ].
+           self combine: buffer size: n into: self state.
+       ]
+!
+
+digest
+    | answer |
+    answer := ByteArray new: 20.
+    self finalize: self state in: answer.
+    ^answer
+! !


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