Imported Upstream version 2.13

2017-10-31 15:15:02 +01:00 · 2017-10-31 15:15:02 +01:00 · eef453dcd9
commit eef453dcd9
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+++ b/587
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+2010-07-03   Release 2.13
+
+    Mike McCauley (1):
+          Fix memory leak in sha1_transform
+
+
+
+2009-05-23   Release 2.12
+
+    Gisle Aas (6):
+	  Get rid of the old CVS ids
+	  Avoid "redefined" error for ULONG on Win64
+	  Less optimizations on IRIX [RT#8999]
+	  Clean up the 'git status' output
+	  Mention that SHA-1 might be weak [RT#11880]
+	  Ensure more stuff in the META.yml file [RT#40757]
+
+    Steve Peters (1):
+	  Quiet warnings when compiled with -Wwrite-strings [RT#31915]
+
+
+
+2006-01-18   Gisle Aas <gisle@ActiveState.com>
+
+   Release 2.11
+
+   Internal cleanup to avoid some compiler warnings.
+
+
+
+2004-04-05   Gisle Aas <gisle@ActiveState.com>
+
+   Release 2.10
+
+   Restore compatibility with perl-5.004 and perl-5.005.
+
+
+
+2004-04-01   Gisle Aas <gisle@ActiveState.com>
+
+   Release 2.09
+
+   The 2.08 release did not compile with a threaded debugging
+   perl, because assert() then needs my_perl.  Fixed by commenting
+   out the asserts.
+
+
+
+2004-04-01   Gisle Aas <gisle@ActiveState.com>
+
+   Release 2.08
+
+   Enable PERL_NO_GET_CONTEXT for more more efficient execution
+   on a threaded perl.
+
+   Fix up md5 references.  Patch by Ville Skyttä <ville.skytta@iki.fi>.
+
+
+
+2003-12-05   Gisle Aas <gisle@ActiveState.com>
+
+   Release 2.07
+
+   Inherit add_bits() from Digest::base if available.
+
+   
+
+2003-10-13   Gisle Aas <gisle@ActiveState.com>
+
+   Release 2.06
+
+   The sha1_transform() function did not check that it was actually
+   passed any arguments.
+
+   Complete self-contained documentation included (copied from
+   Digest::MD5), since the Digest.pm manpage is not always available.
+
+
+
+2003-10-06   Gisle Aas <gisle@ActiveState.com>
+
+   Release 2.05
+
+   Added missing cast to support C++ compilation.  Patch by Jan Dubois.
+
+   Document that the sha1_base64 function and the b64digest method
+   does not pad their result.
+
+
+
+2003-07-22   Gisle Aas <gisle@ActiveState.com>
+
+   Release 2.04
+
+   Don't assume PerlIO_read() works like fread() even though
+   it was documented like that for perl 5.6.  It returns negative
+   on read failure.
+
+   Kill test #3 in t/badfile.t.  I don't know a reliable way
+   to test read failures on a file handle.  Seems better not to
+   test than to make many worry.
+
+
+
+2003-07-05   Gisle Aas <gisle@ActiveState.com>
+
+   Release 2.03
+
+   Implemented sha1_transform, required to implement NIST FIPS 186-2.
+   Contributed by Mike McCauley <mikem@open.com.au>.
+
+   Make it build on 64-bit platforms with 32-bit longs.  At least
+   I hope it will.
+
+   Sync up with the Digest::MD5 implementation:
+      - added clone method
+      - addfile croaks if it can't read
+      - the sha1*() functions warn if called as method
+        or with reference arguments.
+
+
+
+2002-12-27   Gisle Aas <gisle@ActiveState.com>
+
+   Release 2.02
+
+   Make it work when there is a mismatch between the
+   sizeof(BYTEORDER) and sizeof(long).  Based on patch
+   by Allen Smith <easmith@beatrice.rutgers.edu>.
+
+   Support UTF8 strings in newer versions of Perl.
+
+
+
+2001-12-30   Gisle Aas <gisle@ActiveState.com>
+
+   Release 2.01
+
+   Applied trivial win32 fix from Gurusamy Sarathy that
+   avoids stray temp files left after 'make test'.
+
+
+
+2001-03-13   Gisle Aas <gisle@ActiveState.com>
+
+   Release 2.00
+
+   Broken out of the Digest-MD5-2.12 distribution and made into
+   a separate dist.
+
+
+
+-------------------------------------------------------------------
+Changes below from the Digest-MD5 dist.
+
+
+2000-09-18   Gisle Aas <gisle@ActiveState.com>
+
+   Release 2.12
+
+   Avoid pointer cast warning for machines with bigger ints
+   than pointers.  Patch by Robin Barker <rmb1@cise.npl.co.uk>.
+
+
+
+2000-08-19   Gisle Aas <gisle@ActiveState.com>
+
+   Release 2.11
+   
+   The fallback code introduced in 2.10 did only work for
+   perl-5.6.0.  It should now for for perl5.004 and 5.005
+   as well.  Patch by Ville Skyttä <ville@office.popsystems.com>.
+
+
+
+2000-08-18   Gisle Aas <gisle@ActiveState.com>
+
+   Release 2.10
+
+   Digest::MD5 will now try to fallback to the pure perl
+   implementation of Digest::Perl::MD5 if bootstrap fails.
+
+   Added a bit internal paranoia about casting the IV
+   in the Digest::MD5 object to the MD5_CTX* pointer.
+
+
+
+1999-08-06   Gisle Aas <gisle@aas.no>
+
+   Release 2.09
+
+   Documentation update.
+
+
+
+1999-07-28   Gisle Aas <gisle@aas.no>
+
+   Release 2.08
+
+   The addfile() methods could trigger a core dump when passed
+   a filehandle that had failed to open.
+
+
+
+1999-04-26   Gisle Aas <gisle@aas.no>
+
+   Release 2.07
+
+   The Digest::SHA1 module failed on some 64-bit systems, because I
+   assumed there was a correspondence between the U32 size and
+   BYTEORDER.  This version use 'unsigned long' as Uwe's original
+   SHA module did.
+
+   The module should now work better when liked statically with perl,
+   because we now use a safer module-loaded test in Digest.pm.
+
+   Assume we know the outcome of the alignment test on VMS. Patch by
+   Chuck Lane <lane@duphy4.physics.drexel.edu>
+
+
+
+1999-03-26   Gisle Aas <gisle@aas.no>
+
+   Release 2.06
+
+   Avoid LONG and BYTE types in SHA.xs as they was in conflict
+   with similar definitions in <winnt.h>.
+
+   Patch by Marko Asplund <aspa@hip.fi> to make the the alignment
+   test program link successfully with sfio-perl.
+
+   Fixed a typo in MD5.xs that might have affected 64-bit systems.
+   Spotted by Nick Ing-Simmons
+
+
+
+1999-03-15   Gisle Aas <gisle@aas.no>
+
+   Release 2.05
+
+   Included Digest::SHA1 based on Uwe Hollerbach's SHA module.
+
+
+
+1999-03-05   Gisle Aas <gisle@aas.no>
+
+   Release 2.04
+
+   Avoid the -o option when compiling alignment test program
+   for Win32 as suggested by Gurusamy Sarathy.
+
+   DEC Compiler bug workaround.  Contributed by D Roland Walker
+   <walker@ncbi.nlm.nih.gov>
+
+   Having references to a local variable called "na" was not
+   very safe either.  Some older versions of Perl can apparently
+   macroize this into something completely different.
+
+
+
+1999-02-27   Gisle Aas <gisle@aas.no>
+
+   Release 2.03
+
+   Patch from Christopher J. Madsen <chris_madsen@geocities.com> that
+   should help getting the u32align test program to compile with
+   Visual C++ 5 on Windows NT.
+
+   Got rid of references to PL_na.
+
+
+
+1999-01-31   Gisle Aas <gisle@aas.no>
+
+   Release 2.02
+
+   Added a hints file as workaround for an IRIX compiler bug.
+   Contributed by D Roland Walker <walker@ncbi.nlm.nih.gov>.
+
+   Note that the rfc2202 test can still fail on some DEC Alpha,
+   because of a compiler bug that affects the perl 'x' operator.
+   The Digest:: modules should work and be safe to install anyway.
+
+
+
+1998-12-18   Gisle Aas <aas@sn.no>
+
+   Release 2.01
+
+   Some casts and tweaks to make picky compilers more happy.
+
+
+
+1998-11-04   Gisle Aas <aas@sn.no>
+
+   Release 2.00.
+
+   Taken out Digest::SHA1 as this module will be provided from Uwe
+   Hollerbach later.
+
+   Some tweaks to MD2.xs and MD5.xs since "na" disappeared in
+   perl5.005_53
+
+
+
+1998-10-30   Gisle Aas <aas@sn.no>
+
+   Release 1.99_60
+
+   The 1.99_59 release introduced compilation problems for big-endian
+   systems with free U32 alignment.  Bug reported, and fix suggested
+   by Paul J. Schinder <schinder@pobox.com>.
+
+
+
+1998-10-28   Gisle Aas <aas@sn.no>
+
+   Release 1.99_59
+
+   Makefile.PL will run a test program to find out if U32 values can
+   be aligned anywhere.  This hopefully cures the core dumps reported
+   on Solaris and other big endian systems.  Thanks to Graham Barr for
+   debugging this.
+
+
+
+1998-10-28   Gisle Aas <aas@sn.no>
+
+   Release 1.99_58
+
+   Should be very close to a 2.00 release now.  Need some success
+   reports from people running on big-endian machines first I think.
+
+   Added a Digest::MD2 implementation.
+
+   Wrote Digest.pm documentation.  This define the interface that all
+   Digest:: modules should provide.
+
+   Avoided some code duplication in MD5.xs
+
+   Fixed typo, that prevented Digest::SHA1::sha1_base64() from working.
+
+
+
+1998-10-27   Gisle Aas <aas@sn.no>
+
+   Release 1.99_57
+
+   Rewritten most of the MD5 C code to make it real fast (especially
+   on little-endian machines without alignment restrictions for U32).
+   Compared to MD5-1.7 we can process files 4 times as fast and we
+   digest small stuff in memory 7 times faster.  I came to these
+   conclusions after these tests (gcc -O2, i586, Linux):
+
+   First tested calculation of the digest of a 31 MB file, using
+   perl -le 'print Digest::MD5->new->addfile(*STDIN)->hexdigest'
+   and similar stuff:
+
+      MD5-1.7:                 21.06s
+      Digest::MD5-1.99_57:      5.23s
+      md5sum (GNU textutils):   4.90s
+
+   As you can see, we do nearly as good as the md5sum program.  I
+   think the reason we don't beat md5sum is that perl always insist on
+   loading extra modules like Config.pm, Carp.pm, strict.pm, vars.pm,
+   AutoLoader.pm and DynaLoader.pm.  When I simply wrapped the MD5.xs
+   hasher code in a C program I managed to process the file in 4.68s.
+
+   Then we calculated the digest of the same 6 byte sting, 20000
+   times:
+
+      MD5-1.7:                 11.81s
+      Digest::MD5-1.99_57:      1.68s
+
+   Digest::MD5 benefit from making this into a plain procedure call
+   instead of a static method call.
+
+
+   Other changes in this release are:
+
+   Documentation update
+
+   Internal MD5.xs cleanup.
+
+   $md5->digest will automatically reset now.
+
+   Digest::HMAC methods add() and addfile() did not return the
+   correct object.
+
+   Added Digest.pm loading module.  I am not sure this is a good idea.
+
+   Added Digest::SHA1 and Digest::HMAC_SHA1 module.  The Digest::SHA1
+   module is just a wrapper around SHA.pm.  I hope to get the author
+   of SHA.pm to move his module to the Digest:: category.
+
+
+
+1998-10-25   Gisle Aas <aas@sn.no>
+
+   Release 1.99_56
+
+   Fix memcpy_byteswap() function in MD5.xs.  Must be careful with
+   htovl() as it might evaluate its arguments more than once.
+
+
+
+1998-10-25   Gisle Aas <aas@sn.no>
+
+   Release 1.99_55
+
+   Grahams HMAC_MD5.pm splitted into two modules.  Digest::HMAC and
+   Digest::HMAC_MD5.  Also provide functional interface.  Documentation
+   is still lacking.
+
+   Included RFC 2202 based test for HMAC-MD5.
+
+
+
+1998-10-24   Gisle Aas <aas@sn.no>
+
+   Release 1.99_54
+
+   Included HMAC_MD5.pm, contributed by Graham Barr <gbarr@ti.com>.
+
+   I have a hard time to make up my mind :-)  md5_bin() renamed back
+   to md5().   Functions are not exported by default any more.
+
+   Try to Encode/Decode with memcpy_byteswap for 32-bit big-endian
+   machines.
+
+
+
+1998-10-23   Gisle Aas <aas@sn.no>
+
+   Release 1.99_53
+
+   Renamed core module as Digest::MD5.  Leave a MD5.pm stub for
+   legacy code.
+
+   The md5() function renamed as md5_bin().
+
+   The constructor, Digest::MD5->new, no longer takes any extra
+   arguments.
+
+   Added some new tests.
+
+   Updated the documentation.
+
+   $md5->b64digest implemented with same base64 encoder as md5_base64.
+
+
+
+1998-10-23   Gisle Aas <aas@sn.no>
+
+   Release 1.99_52
+
+   Patch from Graham Barr which make it work for big-endian machines
+   again.
+
+
+
+1998-10-22   Gisle Aas <aas@sn.no>
+
+   Release 1.99_51
+
+   The MD5 class is now subclassable.
+
+   The add() and addfile() methods now return $self.
+
+   The reset() method is just an alias for new().
+
+   The constructor (MD5->new) now takes optional arguments which are
+   automatically added.  It means that we can now write:
+
+      MD5->new($data)->hexdigest;
+
+   New $md5->b64digest method.
+
+   New functions that are exported on request: md5, md5_hex, md5_base64
+
+   Included RFC 1321
+
+   Barely started to update the documentation.
+
+
+
+1998-10-22   Gisle Aas <aas@sn.no>
+
+   Release 1.99_50
+
+   Much better performance (more than twice as fast now).  Mostly
+   because we use Copy/Zero instead of the original MD5_memcpy and
+   MD5_memset functions.
+
+   The addfile() and hexdigest() methods are now XS implemented.
+
+   All RSA functions now included in MD5.xs and made static.
+
+   Use perl's Copy/Zero.
+
+   Random cleanup, simplifications and reformatting.
+   Merged things better with the perl configuration.
+
+
+
+Neil Winton's versions below:
+
+
+*** 96/06/20 Version 1.7
+
+MD5 is now completely 64-bit clean (I hope). The basic MD5 code uses
+32-bit quantities and requires a typedef UINT4 to be defined in
+global.h. Perl configuration data (the value of BYTEORDER) is used to
+determine if unsigned longs have 4 or 8 bytes. On 64-bit platforms (eg
+DEC Alpha) then it assumes that "unsigned int" will be a 32-bit type.
+If this is incorrect then adding -DUINT4_IS_LONG to the DEFINES line in
+Makefile.PL will override this.
+
+On some machines (at least Cray that I know of) there is no 32-bit
+integer type. In this case defining TRUNCATE_UINT4 (which is done
+automatically for a Cray) will ensure that 64-bit values are masked
+down to 32 bits. I have done my best to test this but without easy
+access to a true 64-bit machine I can not totally guarantee it (unless
+anyone wants to lend me a spare Cray :-)
+
+There is one remaining limitation for 64-bit enabled processors. The
+amount of data passed to any single call to the underlying MD5
+routines is limited to (2^32 - 1) bytes -- that's 4 gigabytes. I'm
+sorry if that's a real problem for you ...
+
+And finally, a minor compilation warning (unsigned char * used with
+function having char * prototype) has also been eliminated.
+
+*** 96/04/09 Version 1.6
+
+Re-generated module framework using h2xs to pick up the latest module
+conventions for versions etc. You can now say "use MD5 1.6;" and things
+should work correctly. MD5.pod has been integrated into MD5.pm and
+CHANGES renamed to Changes. There is a fairly comprehensive test.pl
+which can be invoked via "make test". There are no functional changes
+to the MD5 routines themselves.
+
+*** 96/03/14 Version 1.5.3
+
+Fixed addfile method to accept type-glob references for the file-handle
+(eg \*STDOUT). This is more consistent with other routines and is now the
+recommended way of passing file-handles. The documentation now gives more
+examples as to how the routines might be used.
+
+*** 96/03/12 Version 1.5.2
+
+Minor fixes from Christopher J Madsen <madsen@computek.net> to provide
+support for building on OS/2 (and to work around a perl -w bug).
+
+Remove warning about possible difference between add('foo', 'bar') and
+add('foobar'). This is not true (it may have been true in the earliest
+version of the module but is no longer the case).
+
+*** 96/03/08 Version 1.5.1
+
+Add CHANGES file to make it easier for people to figure out what has
+been going on. (Meant to do this as part of 1.5)
+
+*** 96/03/05 Version 1.5
+
+Add hash() and hexhash() methods at the suggestion/request of Gary
+Howland <gary@kampai.euronet.nl> before inclusion in a wider library
+of cryptography modules.
+
+*** 96/02/27 Version 1.4
+
+Finally fixed the pesky Solaris dynamic loading bug. All kudos to Ken
+Pizzini <kenp@spry.com>!
+
+*** 95/11/29 Version 1.3.1
+
+Add explanations of current known problems.
+
+*** 95/06/02 Version 1.3
+
+Fix problems with scope resolution in addfile() reported by
+Jean-Claude Giese <Jean-Claude.Giese@loria.fr>. Basically ARGV is
+always implicitly in package main while other filehandles aren't.
+ 
+*** 95/05/23 Version 1.2.1
+
+[Changes pre 1.2.1 not recorded]
--- a/14
+++ b/14
@ -0,0 +1,14 @@
+Changes
+MANIFEST
+Makefile.PL
+README
+SHA1.pm
+SHA1.xs
+fip180-1.gif
+fip180-1.html
+hints/irix_6.pl
+t/badfile.t
+t/bits.t
+t/sha1.t
+typemap
+META.yml                                 Module meta-data (added by MakeMaker)
--- a/META.yml
+++ b/META.yml
@ -0,0 +1,24 @@
+--- #YAML:1.0
+name:               Digest-SHA1
+version:            2.13
+abstract:           Perl interface to the SHA-1 algorithm
+author:
+    - Gisle Aas <gisle@activestate.com>
+license:            perl
+distribution_type:  module
+configure_requires:
+    ExtUtils::MakeMaker:  0
+build_requires:
+    ExtUtils::MakeMaker:  0
+requires:
+    Digest::base:  1.00
+    perl:          5.004
+no_index:
+    directory:
+        - t
+        - inc
+generated_by:       ExtUtils::MakeMaker version 6.56
+meta-spec:
+    url:      http://module-build.sourceforge.net/META-spec-v1.4.html
+    version:  1.4
+repository:         http://github.com/gisle/digest-sha1
--- a/Makefile.PL
+++ b/Makefile.PL
@ -0,0 +1,41 @@
+require 5.004;
+use ExtUtils::MakeMaker;
+
+WriteMakefile(
+    'NAME'	   => 'Digest::SHA1',
+    'VERSION_FROM' => 'SHA1.pm',
+    'ABSTRACT'     => 'Perl interface to the SHA-1 algorithm',
+    'AUTHOR'       => 'Gisle Aas <gisle@activestate.com>',
+    'LICENSE'      => "perl",
+    'MIN_PERL_VERSION' => 5.004,
+    'PREREQ_PM'    => {
+	                'Digest::base' => '1.00',
+                      },
+    'META_MERGE'   => {
+	repository => 'http://github.com/gisle/digest-sha1',
+    },
+    'dist'         => { COMPRESS => 'gzip -9f', SUFFIX => 'gz', },
+);
+
+
+BEGIN {
+    # compatibility with older versions of MakeMaker
+    my $developer = -f "NOTES.txt";
+    my %mm_req = (
+        LICENCE => 6.31,
+        META_MERGE => 6.45,
+        META_ADD => 6.45,
+        MIN_PERL_VERSION => 6.48,
+    );
+    undef(*WriteMakefile);
+    *WriteMakefile = sub {
+        my %arg = @_;
+        for (keys %mm_req) {
+            unless (eval { ExtUtils::MakeMaker->VERSION($mm_req{$_}) }) {
+                warn "$_ $@" if $developer;
+                delete $arg{$_};
+            }
+        }
+        ExtUtils::MakeMaker::WriteMakefile(%arg);
+    };
+}
--- a/14
+++ b/14
@ -0,0 +1,14 @@
+The Digest::SHA1 module allows you to use the NIST SHA-1 message
+digest algorithm from within Perl programs.  The algorithm takes as
+input a message of arbitrary length and produces as output a 160-bit
+"fingerprint" or "message digest" of the input.
+
+SHA1 is described at <http://www.itl.nist.gov/fipspubs/fip180-1.htm>
+
+You will need Perl version 5.004 or better to install this module.
+
+Copyright 1999-2004 Gisle Aas.
+Copyright 1997 Uwe Hollerbach.
+
+This library is free software; you can redistribute it and/or
+modify it under the same terms as Perl itself.
--- a/SHA1.pm
+++ b/SHA1.pm
@ -0,0 +1,246 @@
+package Digest::SHA1;
+
+use strict;
+use vars qw($VERSION @ISA @EXPORT_OK);
+
+$VERSION = '2.13';
+
+require Exporter;
+*import = \&Exporter::import;
+@EXPORT_OK = qw(sha1 sha1_hex sha1_base64 sha1_transform);
+
+require DynaLoader;
+@ISA=qw(DynaLoader);
+
+eval {
+    require Digest::base;
+    push(@ISA, 'Digest::base');
+};
+if ($@) {
+    my $err = $@;
+    *add_bits = sub { die $err };
+}
+
+Digest::SHA1->bootstrap($VERSION);
+
+1;
+__END__
+
+=head1 NAME
+
+Digest::SHA1 - Perl interface to the SHA-1 algorithm
+
+=head1 SYNOPSIS
+
+ # Functional style
+ use Digest::SHA1  qw(sha1 sha1_hex sha1_base64);
+
+ $digest = sha1($data);
+ $digest = sha1_hex($data);
+ $digest = sha1_base64($data);
+ $digest = sha1_transform($data);
+
+
+ # OO style
+ use Digest::SHA1;
+
+ $sha1 = Digest::SHA1->new;
+
+ $sha1->add($data);
+ $sha1->addfile(*FILE);
+
+ $sha1_copy = $sha1->clone;
+
+ $digest = $sha1->digest;
+ $digest = $sha1->hexdigest;
+ $digest = $sha1->b64digest;
+ $digest = $sha1->transform;
+
+=head1 DESCRIPTION
+
+The C<Digest::SHA1> module allows you to use the NIST SHA-1 message
+digest algorithm from within Perl programs.  The algorithm takes as
+input a message of arbitrary length and produces as output a 160-bit
+"fingerprint" or "message digest" of the input.
+
+In 2005, security flaws were identified in SHA-1, namely that a possible
+mathematical weakness might exist, indicating that a stronger hash function
+would be desirable.  The L<Digest::SHA> module implements the stronger
+algorithms in the SHA family.
+
+The C<Digest::SHA1> module provide a procedural interface for simple
+use, as well as an object oriented interface that can handle messages
+of arbitrary length and which can read files directly.
+
+=head1 FUNCTIONS
+
+The following functions can be exported from the C<Digest::SHA1>
+module.  No functions are exported by default.
+
+=over 4
+
+=item sha1($data,...)
+
+This function will concatenate all arguments, calculate the SHA-1
+digest of this "message", and return it in binary form.  The returned
+string will be 20 bytes long.
+
+The result of sha1("a", "b", "c") will be exactly the same as the
+result of sha1("abc").
+
+=item sha1_hex($data,...)
+
+Same as sha1(), but will return the digest in hexadecimal form.  The
+length of the returned string will be 40 and it will only contain
+characters from this set: '0'..'9' and 'a'..'f'.
+
+=item sha1_base64($data,...)
+
+Same as sha1(), but will return the digest as a base64 encoded string.
+The length of the returned string will be 27 and it will only contain
+characters from this set: 'A'..'Z', 'a'..'z', '0'..'9', '+' and
+'/'.
+
+Note that the base64 encoded string returned is not padded to be a
+multiple of 4 bytes long.  If you want interoperability with other
+base64 encoded sha1 digests you might want to append the redundant
+string "=" to the result.
+
+=item sha1_transform($data)
+
+Implements the basic SHA1 transform on a 64 byte block. The $data
+argument and the returned $digest are in binary form. This algorithm
+is used in NIST FIPS 186-2
+
+=back
+
+=head1 METHODS
+
+The object oriented interface to C<Digest::SHA1> is described in this
+section.  After a C<Digest::SHA1> object has been created, you will add
+data to it and finally ask for the digest in a suitable format.  A
+single object can be used to calculate multiple digests.
+
+The following methods are provided:
+
+=over 4
+
+=item $sha1 = Digest::SHA1->new
+
+The constructor returns a new C<Digest::SHA1> object which encapsulate
+the state of the SHA-1 message-digest algorithm.
+
+If called as an instance method (i.e. $sha1->new) it will just reset the
+state the object to the state of a newly created object.  No new
+object is created in this case.
+
+=item $sha1->reset
+
+This is just an alias for $sha1->new.
+
+=item $sha1->clone
+
+This a copy of the $sha1 object. It is useful when you do not want to
+destroy the digests state, but need an intermediate value of the
+digest, e.g. when calculating digests iteratively on a continuous data
+stream.  Example:
+
+    my $sha1 = Digest::SHA1->new;
+    while (<>) {
+	$sha1->add($_);
+	print "Line $.: ", $sha1->clone->hexdigest, "\n";
+    }
+
+=item $sha1->add($data,...)
+
+The $data provided as argument are appended to the message we
+calculate the digest for.  The return value is the $sha1 object itself.
+
+All these lines will have the same effect on the state of the $sha1
+object:
+
+    $sha1->add("a"); $sha1->add("b"); $sha1->add("c");
+    $sha1->add("a")->add("b")->add("c");
+    $sha1->add("a", "b", "c");
+    $sha1->add("abc");
+
+=item $sha1->addfile($io_handle)
+
+The $io_handle will be read until EOF and its content appended to the
+message we calculate the digest for.  The return value is the $sha1
+object itself.
+
+The addfile() method will croak() if it fails reading data for some
+reason.  If it croaks it is unpredictable what the state of the $sha1
+object will be in. The addfile() method might have been able to read
+the file partially before it failed.  It is probably wise to discard
+or reset the $sha1 object if this occurs.
+
+In most cases you want to make sure that the $io_handle is in
+C<binmode> before you pass it as argument to the addfile() method.
+
+=item $sha1->add_bits($data, $nbits)
+
+=item $sha1->add_bits($bitstring)
+
+This implementation of SHA-1 only supports byte oriented input so you
+might only add bits as multiples of 8.  If you need bit level support
+please consider using the C<Digest::SHA> module instead.  The
+add_bits() method is provided here for compatibility with other digest
+implementations.  See L<Digest> for description of the arguments that
+add_bits() take.
+
+=item $sha1->digest
+
+Return the binary digest for the message.  The returned string will be
+20 bytes long.
+
+Note that the C<digest> operation is effectively a destructive,
+read-once operation. Once it has been performed, the C<Digest::SHA1>
+object is automatically C<reset> and can be used to calculate another
+digest value.  Call $sha1->clone->digest if you want to calculate the
+digest without reseting the digest state.
+
+=item $sha1->hexdigest
+
+Same as $sha1->digest, but will return the digest in hexadecimal
+form. The length of the returned string will be 40 and it will only
+contain characters from this set: '0'..'9' and 'a'..'f'.
+
+=item $sha1->b64digest
+
+Same as $sha1->digest, but will return the digest as a base64 encoded
+string.  The length of the returned string will be 27 and it will only
+contain characters from this set: 'A'..'Z', 'a'..'z', '0'..'9', '+'
+and '/'.
+
+
+The base64 encoded string returned is not padded to be a multiple of 4
+bytes long.  If you want interoperability with other base64 encoded
+SHA-1 digests you might want to append the string "=" to the result.
+
+=back
+
+=head1 SEE ALSO
+
+L<Digest>, L<Digest::HMAC_SHA1>, L<Digest::SHA>, L<Digest::MD5>
+
+http://www.itl.nist.gov/fipspubs/fip180-1.htm
+
+http://en.wikipedia.org/wiki/SHA_hash_functions
+
+=head1 COPYRIGHT
+
+This library is free software; you can redistribute it and/or
+modify it under the same terms as Perl itself.
+
+ Copyright 1999-2004 Gisle Aas.
+ Copyright 1997 Uwe Hollerbach.
+
+=head1 AUTHORS
+
+Peter C. Gutmann,
+Uwe Hollerbach <uh@alumni.caltech.edu>,
+Gisle Aas <gisle@aas.no>
+
+=cut
--- a/SHA1.xs
+++ b/SHA1.xs
@ -0,0 +1,622 @@
+#ifdef __cplusplus
+extern "C" {
+#endif
+#define PERL_NO_GET_CONTEXT     /* we want efficiency */
+#include "EXTERN.h"
+#include "perl.h"
+#include "XSUB.h"
+#ifdef __cplusplus
+}
+#endif
+
+#ifndef PERL_VERSION
+#    include <patchlevel.h>
+#    if !(defined(PERL_VERSION) || (SUBVERSION > 0 && defined(PATCHLEVEL)))
+#        include <could_not_find_Perl_patchlevel.h>
+#    endif
+#    define PERL_REVISION       5
+#    define PERL_VERSION        PATCHLEVEL
+#    define PERL_SUBVERSION     SUBVERSION
+#endif
+
+#if PERL_VERSION <= 4 && !defined(PL_dowarn)
+   #define PL_dowarn dowarn
+#endif
+
+#ifdef G_WARN_ON
+   #define DOWARN (PL_dowarn & G_WARN_ON)
+#else
+   #define DOWARN PL_dowarn
+#endif
+
+#ifdef SvPVbyte
+   #if PERL_REVISION == 5 && PERL_VERSION < 7
+       /* SvPVbyte does not work in perl-5.6.1, borrowed version for 5.7.3 */
+       #undef SvPVbyte
+       #define SvPVbyte(sv, lp) \
+          ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK) \
+           ? ((lp = SvCUR(sv)), SvPVX(sv)) : my_sv_2pvbyte(aTHX_ sv, &lp))
+
+       static char *
+       my_sv_2pvbyte(pTHX_ register SV *sv, STRLEN *lp)
+       {
+           sv_utf8_downgrade(sv,0);
+           return SvPV(sv,*lp);
+       }
+   #endif
+#else
+   #define SvPVbyte SvPV
+#endif
+
+#ifndef dTHX
+   #define pTHX_
+   #define aTHX_
+#endif
+
+/* NIST Secure Hash Algorithm */
+/* heavily modified by Uwe Hollerbach <uh@alumni.caltech edu> */
+/* from Peter C. Gutmann's implementation as found in */
+/* Applied Cryptography by Bruce Schneier */
+/* Further modifications to include the "UNRAVEL" stuff, below */
+
+/* This code is in the public domain */
+
+/* Useful defines & typedefs */
+
+#if defined(U64TYPE) && (defined(USE_64_BIT_INT) || ((BYTEORDER != 0x1234) && (BYTEORDER != 0x4321)))
+typedef U64TYPE ULONGx;
+# if BYTEORDER == 0x1234
+#   undef BYTEORDER
+#   define BYTEORDER 0x12345678
+# elif BYTEORDER == 0x4321
+#   undef BYTEORDER
+#   define BYTEORDER 0x87654321   
+# endif
+#else
+typedef unsigned long ULONGx;     /* 32-or-more-bit quantity */
+#endif
+
+#define SHA_BLOCKSIZE		64
+#define SHA_DIGESTSIZE		20
+
+typedef struct {
+    ULONGx digest[5];		/* message digest */
+    ULONGx count_lo, count_hi;	/* 64-bit bit count */
+    U8 data[SHA_BLOCKSIZE];	/* SHA data buffer */
+    int local;			/* unprocessed amount in data */
+} SHA_INFO;
+
+
+/* UNRAVEL should be fastest & biggest */
+/* UNROLL_LOOPS should be just as big, but slightly slower */
+/* both undefined should be smallest and slowest */
+
+#define SHA_VERSION 1
+#define UNRAVEL
+/* #define UNROLL_LOOPS */
+
+/* SHA f()-functions */
+#define f1(x,y,z)	((x & y) | (~x & z))
+#define f2(x,y,z)	(x ^ y ^ z)
+#define f3(x,y,z)	((x & y) | (x & z) | (y & z))
+#define f4(x,y,z)	(x ^ y ^ z)
+
+/* SHA constants */
+#define CONST1		0x5a827999L
+#define CONST2		0x6ed9eba1L
+#define CONST3		0x8f1bbcdcL
+#define CONST4		0xca62c1d6L
+
+/* truncate to 32 bits -- should be a null op on 32-bit machines */
+#define T32(x)	((x) & 0xffffffffL)
+
+/* 32-bit rotate */
+#define R32(x,n)	T32(((x << n) | (x >> (32 - n))))
+
+/* the generic case, for when the overall rotation is not unraveled */
+#define FG(n)	\
+    T = T32(R32(A,5) + f##n(B,C,D) + E + *WP++ + CONST##n);	\
+    E = D; D = C; C = R32(B,30); B = A; A = T
+
+/* specific cases, for when the overall rotation is unraveled */
+#define FA(n)	\
+    T = T32(R32(A,5) + f##n(B,C,D) + E + *WP++ + CONST##n); B = R32(B,30)
+
+#define FB(n)	\
+    E = T32(R32(T,5) + f##n(A,B,C) + D + *WP++ + CONST##n); A = R32(A,30)
+
+#define FC(n)	\
+    D = T32(R32(E,5) + f##n(T,A,B) + C + *WP++ + CONST##n); T = R32(T,30)
+
+#define FD(n)	\
+    C = T32(R32(D,5) + f##n(E,T,A) + B + *WP++ + CONST##n); E = R32(E,30)
+
+#define FE(n)	\
+    B = T32(R32(C,5) + f##n(D,E,T) + A + *WP++ + CONST##n); D = R32(D,30)
+
+#define FT(n)	\
+    A = T32(R32(B,5) + f##n(C,D,E) + T + *WP++ + CONST##n); C = R32(C,30)
+
+
+static void sha_transform(SHA_INFO *sha_info)
+{
+    int i;
+    U8 *dp;
+    ULONGx T, A, B, C, D, E, W[80], *WP;
+
+    dp = sha_info->data;
+
+/*
+the following makes sure that at least one code block below is
+traversed or an error is reported, without the necessity for nested
+preprocessor if/else/endif blocks, which are a great pain in the
+nether regions of the anatomy...
+*/
+#undef SWAP_DONE
+
+#if BYTEORDER == 0x1234
+#define SWAP_DONE
+    /* assert(sizeof(ULONGx) == 4); */
+    for (i = 0; i < 16; ++i) {
+	T = *((ULONGx *) dp);
+	dp += 4;
+	W[i] =  ((T << 24) & 0xff000000) | ((T <<  8) & 0x00ff0000) |
+		((T >>  8) & 0x0000ff00) | ((T >> 24) & 0x000000ff);
+    }
+#endif
+
+#if BYTEORDER == 0x4321
+#define SWAP_DONE
+    /* assert(sizeof(ULONGx) == 4); */
+    for (i = 0; i < 16; ++i) {
+	T = *((ULONGx *) dp);
+	dp += 4;
+	W[i] = T32(T);
+    }
+#endif
+
+#if BYTEORDER == 0x12345678
+#define SWAP_DONE
+    /* assert(sizeof(ULONGx) == 8); */
+    for (i = 0; i < 16; i += 2) {
+	T = *((ULONGx *) dp);
+	dp += 8;
+	W[i] =  ((T << 24) & 0xff000000) | ((T <<  8) & 0x00ff0000) |
+		((T >>  8) & 0x0000ff00) | ((T >> 24) & 0x000000ff);
+	T >>= 32;
+	W[i+1] = ((T << 24) & 0xff000000) | ((T <<  8) & 0x00ff0000) |
+		 ((T >>  8) & 0x0000ff00) | ((T >> 24) & 0x000000ff);
+    }
+#endif
+
+#if BYTEORDER == 0x87654321
+#define SWAP_DONE
+    /* assert(sizeof(ULONGx) == 8); */
+    for (i = 0; i < 16; i += 2) {
+	T = *((ULONGx *) dp);
+	dp += 8;
+	W[i] = T32(T >> 32);
+	W[i+1] = T32(T);
+    }
+#endif
+
+#ifndef SWAP_DONE
+#error Unknown byte order -- you need to add code here
+#endif /* SWAP_DONE */
+
+    for (i = 16; i < 80; ++i) {
+	W[i] = W[i-3] ^ W[i-8] ^ W[i-14] ^ W[i-16];
+#if (SHA_VERSION == 1)
+	W[i] = R32(W[i], 1);
+#endif /* SHA_VERSION */
+    }
+    A = sha_info->digest[0];
+    B = sha_info->digest[1];
+    C = sha_info->digest[2];
+    D = sha_info->digest[3];
+    E = sha_info->digest[4];
+    WP = W;
+#ifdef UNRAVEL
+    FA(1); FB(1); FC(1); FD(1); FE(1); FT(1); FA(1); FB(1); FC(1); FD(1);
+    FE(1); FT(1); FA(1); FB(1); FC(1); FD(1); FE(1); FT(1); FA(1); FB(1);
+    FC(2); FD(2); FE(2); FT(2); FA(2); FB(2); FC(2); FD(2); FE(2); FT(2);
+    FA(2); FB(2); FC(2); FD(2); FE(2); FT(2); FA(2); FB(2); FC(2); FD(2);
+    FE(3); FT(3); FA(3); FB(3); FC(3); FD(3); FE(3); FT(3); FA(3); FB(3);
+    FC(3); FD(3); FE(3); FT(3); FA(3); FB(3); FC(3); FD(3); FE(3); FT(3);
+    FA(4); FB(4); FC(4); FD(4); FE(4); FT(4); FA(4); FB(4); FC(4); FD(4);
+    FE(4); FT(4); FA(4); FB(4); FC(4); FD(4); FE(4); FT(4); FA(4); FB(4);
+    sha_info->digest[0] = T32(sha_info->digest[0] + E);
+    sha_info->digest[1] = T32(sha_info->digest[1] + T);
+    sha_info->digest[2] = T32(sha_info->digest[2] + A);
+    sha_info->digest[3] = T32(sha_info->digest[3] + B);
+    sha_info->digest[4] = T32(sha_info->digest[4] + C);
+#else /* !UNRAVEL */
+#ifdef UNROLL_LOOPS
+    FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); FG(1);
+    FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); FG(1); FG(1);
+    FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); FG(2);
+    FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); FG(2); FG(2);
+    FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); FG(3);
+    FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); FG(3); FG(3);
+    FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); FG(4);
+    FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); FG(4); FG(4);
+#else /* !UNROLL_LOOPS */
+    for (i =  0; i < 20; ++i) { FG(1); }
+    for (i = 20; i < 40; ++i) { FG(2); }
+    for (i = 40; i < 60; ++i) { FG(3); }
+    for (i = 60; i < 80; ++i) { FG(4); }
+#endif /* !UNROLL_LOOPS */
+    sha_info->digest[0] = T32(sha_info->digest[0] + A);
+    sha_info->digest[1] = T32(sha_info->digest[1] + B);
+    sha_info->digest[2] = T32(sha_info->digest[2] + C);
+    sha_info->digest[3] = T32(sha_info->digest[3] + D);
+    sha_info->digest[4] = T32(sha_info->digest[4] + E);
+#endif /* !UNRAVEL */
+}
+
+/* initialize the SHA digest */
+
+static void sha_init(SHA_INFO *sha_info)
+{
+    sha_info->digest[0] = 0x67452301L;
+    sha_info->digest[1] = 0xefcdab89L;
+    sha_info->digest[2] = 0x98badcfeL;
+    sha_info->digest[3] = 0x10325476L;
+    sha_info->digest[4] = 0xc3d2e1f0L;
+    sha_info->count_lo = 0L;
+    sha_info->count_hi = 0L;
+    sha_info->local = 0;
+}
+
+/* update the SHA digest */
+
+static void sha_update(SHA_INFO *sha_info, U8 *buffer, int count)
+{
+    int i;
+    ULONGx clo;
+
+    clo = T32(sha_info->count_lo + ((ULONGx) count << 3));
+    if (clo < sha_info->count_lo) {
+	++sha_info->count_hi;
+    }
+    sha_info->count_lo = clo;
+    sha_info->count_hi += (ULONGx) count >> 29;
+    if (sha_info->local) {
+	i = SHA_BLOCKSIZE - sha_info->local;
+	if (i > count) {
+	    i = count;
+	}
+	memcpy(((U8 *) sha_info->data) + sha_info->local, buffer, i);
+	count -= i;
+	buffer += i;
+	sha_info->local += i;
+	if (sha_info->local == SHA_BLOCKSIZE) {
+	    sha_transform(sha_info);
+	} else {
+	    return;
+	}
+    }
+    while (count >= SHA_BLOCKSIZE) {
+	memcpy(sha_info->data, buffer, SHA_BLOCKSIZE);
+	buffer += SHA_BLOCKSIZE;
+	count -= SHA_BLOCKSIZE;
+	sha_transform(sha_info);
+    }
+    memcpy(sha_info->data, buffer, count);
+    sha_info->local = count;
+}
+
+
+static void sha_transform_and_copy(unsigned char digest[20], SHA_INFO *sha_info)
+{
+    sha_transform(sha_info);
+    digest[ 0] = (unsigned char) ((sha_info->digest[0] >> 24) & 0xff);
+    digest[ 1] = (unsigned char) ((sha_info->digest[0] >> 16) & 0xff);
+    digest[ 2] = (unsigned char) ((sha_info->digest[0] >>  8) & 0xff);
+    digest[ 3] = (unsigned char) ((sha_info->digest[0]      ) & 0xff);
+    digest[ 4] = (unsigned char) ((sha_info->digest[1] >> 24) & 0xff);
+    digest[ 5] = (unsigned char) ((sha_info->digest[1] >> 16) & 0xff);
+    digest[ 6] = (unsigned char) ((sha_info->digest[1] >>  8) & 0xff);
+    digest[ 7] = (unsigned char) ((sha_info->digest[1]      ) & 0xff);
+    digest[ 8] = (unsigned char) ((sha_info->digest[2] >> 24) & 0xff);
+    digest[ 9] = (unsigned char) ((sha_info->digest[2] >> 16) & 0xff);
+    digest[10] = (unsigned char) ((sha_info->digest[2] >>  8) & 0xff);
+    digest[11] = (unsigned char) ((sha_info->digest[2]      ) & 0xff);
+    digest[12] = (unsigned char) ((sha_info->digest[3] >> 24) & 0xff);
+    digest[13] = (unsigned char) ((sha_info->digest[3] >> 16) & 0xff);
+    digest[14] = (unsigned char) ((sha_info->digest[3] >>  8) & 0xff);
+    digest[15] = (unsigned char) ((sha_info->digest[3]      ) & 0xff);
+    digest[16] = (unsigned char) ((sha_info->digest[4] >> 24) & 0xff);
+    digest[17] = (unsigned char) ((sha_info->digest[4] >> 16) & 0xff);
+    digest[18] = (unsigned char) ((sha_info->digest[4] >>  8) & 0xff);
+    digest[19] = (unsigned char) ((sha_info->digest[4]      ) & 0xff);
+}
+
+/* finish computing the SHA digest */
+static void sha_final(unsigned char digest[20], SHA_INFO *sha_info)
+{
+    int count;
+    ULONGx lo_bit_count, hi_bit_count;
+
+    lo_bit_count = sha_info->count_lo;
+    hi_bit_count = sha_info->count_hi;
+    count = (int) ((lo_bit_count >> 3) & 0x3f);
+    ((U8 *) sha_info->data)[count++] = 0x80;
+    if (count > SHA_BLOCKSIZE - 8) {
+	memset(((U8 *) sha_info->data) + count, 0, SHA_BLOCKSIZE - count);
+	sha_transform(sha_info);
+	memset((U8 *) sha_info->data, 0, SHA_BLOCKSIZE - 8);
+    } else {
+	memset(((U8 *) sha_info->data) + count, 0,
+	    SHA_BLOCKSIZE - 8 - count);
+    }
+    sha_info->data[56] = (U8)((hi_bit_count >> 24) & 0xff);
+    sha_info->data[57] = (U8)((hi_bit_count >> 16) & 0xff);
+    sha_info->data[58] = (U8)((hi_bit_count >>  8) & 0xff);
+    sha_info->data[59] = (U8)((hi_bit_count >>  0) & 0xff);
+    sha_info->data[60] = (U8)((lo_bit_count >> 24) & 0xff);
+    sha_info->data[61] = (U8)((lo_bit_count >> 16) & 0xff);
+    sha_info->data[62] = (U8)((lo_bit_count >>  8) & 0xff);
+    sha_info->data[63] = (U8)((lo_bit_count >>  0) & 0xff);
+    sha_transform_and_copy(digest, sha_info);
+}
+
+
+
+
+
+/*----------------------------------------------------------------*/
+#ifndef INT2PTR
+#define INT2PTR(any,d)	(any)(d)
+#endif
+
+static SHA_INFO* get_sha_info(pTHX_ SV* sv)
+{
+    if (sv_derived_from(sv, "Digest::SHA1"))
+	return INT2PTR(SHA_INFO*, SvIV(SvRV(sv)));
+    croak("Not a reference to a Digest::SHA1 object");
+    return (SHA_INFO*)0; /* some compilers insist on a return value */
+}
+
+
+static char* hex_20(const unsigned char* from, char* to)
+{
+    static const char *hexdigits = "0123456789abcdef";
+    const unsigned char *end = from + 20;
+    char *d = to;
+
+    while (from < end) {
+	*d++ = hexdigits[(*from >> 4)];
+	*d++ = hexdigits[(*from & 0x0F)];
+	from++;
+    }
+    *d = '\0';
+    return to;
+}
+
+static char* base64_20(const unsigned char* from, char* to)
+{
+    static const char* base64 =
+	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+    const unsigned char *end = from + 20;
+    unsigned char c1, c2, c3;
+    char *d = to;
+
+    while (1) {
+	c1 = *from++;
+	c2 = *from++;
+	*d++ = base64[c1>>2];
+	*d++ = base64[((c1 & 0x3) << 4) | ((c2 & 0xF0) >> 4)];
+	if (from == end) {
+	    *d++ = base64[(c2 & 0xF) << 2];
+	    break;
+	}
+	c3 = *from++;
+	*d++ = base64[((c2 & 0xF) << 2) | ((c3 & 0xC0) >>6)];
+	*d++ = base64[c3 & 0x3F];
+    }
+    *d = '\0';
+    return to;
+}
+
+/* Formats */
+#define F_BIN 0
+#define F_HEX 1
+#define F_B64 2
+
+static SV* make_mortal_sv(pTHX_ const unsigned char *src, int type)
+{
+    STRLEN len;
+    char result[41];
+    char *ret;
+    
+    switch (type) {
+    case F_BIN:
+	ret = (char*)src;
+	len = 20;
+	break;
+    case F_HEX:
+	ret = hex_20(src, result);
+	len = 40;
+	break;
+    case F_B64:
+	ret = base64_20(src, result);
+	len = 27;
+	break;
+    default:
+	croak("Bad convertion type (%d)", type);
+	break;
+    }
+    return sv_2mortal(newSVpv(ret,len));
+}
+
+
+/********************************************************************/
+
+typedef PerlIO* InputStream;
+
+MODULE = Digest::SHA1		PACKAGE = Digest::SHA1
+
+PROTOTYPES: DISABLE
+
+void
+new(xclass)
+	SV* xclass
+    PREINIT:
+	SHA_INFO* context;
+    PPCODE:
+	if (!SvROK(xclass)) {
+	    STRLEN my_na;
+	    char *sclass = SvPV(xclass, my_na);
+	    New(55, context, 1, SHA_INFO);
+	    ST(0) = sv_newmortal();
+	    sv_setref_pv(ST(0), sclass, (void*)context);
+	    SvREADONLY_on(SvRV(ST(0)));
+	} else {
+	    context = get_sha_info(aTHX_ xclass);
+	}
+	sha_init(context);
+	XSRETURN(1);
+
+void
+clone(self)
+        SV* self
+    PREINIT:
+        SHA_INFO* cont = get_sha_info(aTHX_ self);
+        const char *myname = sv_reftype(SvRV(self),TRUE);
+        SHA_INFO* context;
+    PPCODE:
+        New(55, context, 1, SHA_INFO);
+        ST(0) = sv_newmortal();
+        sv_setref_pv(ST(0), myname , (void*)context);
+        SvREADONLY_on(SvRV(ST(0)));
+        memcpy(context,cont,sizeof(SHA_INFO));
+        XSRETURN(1);
+
+void
+DESTROY(context)
+	SHA_INFO* context
+    CODE:
+        Safefree(context);
+
+void
+add(self, ...)
+	SV* self
+    PREINIT:
+	SHA_INFO* context = get_sha_info(aTHX_ self);
+	int i;
+	unsigned char *data;
+	STRLEN len;
+    PPCODE:
+	for (i = 1; i < items; i++) {
+	    data = (unsigned char *)(SvPVbyte(ST(i), len));
+	    sha_update(context, data, len);
+	}
+	XSRETURN(1);  /* self */
+
+void
+addfile(self, fh)
+	SV* self
+	InputStream fh
+    PREINIT:
+	SHA_INFO* context = get_sha_info(aTHX_ self);
+	unsigned char buffer[4096];
+	int  n;
+    CODE:
+        if (fh) {
+	    /* Process blocks until EOF or error */
+            while ( (n = PerlIO_read(fh, buffer, sizeof(buffer))) > 0) {
+		sha_update(context, buffer, n);
+	    }
+	    if (PerlIO_error(fh)) {
+		croak("Reading from filehandle failed");
+	    }
+        }
+        else {
+	    croak("No filehandle passed");
+        }
+ 
+	XSRETURN(1);  /* self */
+
+void
+digest(context)
+	SHA_INFO* context
+    ALIAS:
+	Digest::SHA1::digest    = F_BIN
+	Digest::SHA1::hexdigest = F_HEX
+	Digest::SHA1::b64digest = F_B64
+    PREINIT:
+	unsigned char digeststr[20];
+    PPCODE:
+        sha_final(digeststr, context);
+	sha_init(context);  /* In case it is reused */
+        ST(0) = make_mortal_sv(aTHX_ digeststr, ix);
+        XSRETURN(1);
+
+void
+sha1(...)
+    ALIAS:
+	Digest::SHA1::sha1        = F_BIN
+	Digest::SHA1::sha1_hex    = F_HEX
+	Digest::SHA1::sha1_base64 = F_B64
+    PREINIT:
+	SHA_INFO ctx;
+	int i;
+	unsigned char *data;
+        STRLEN len;
+	unsigned char digeststr[20];
+    PPCODE:
+	sha_init(&ctx);
+
+	if (DOWARN) {
+            const char *msg = 0;
+	    if (items == 1) {
+		if (SvROK(ST(0))) {
+                    SV* sv = SvRV(ST(0));
+		    if (SvOBJECT(sv) && strEQ(HvNAME(SvSTASH(sv)), "Digest::SHA1"))
+		        msg = "probably called as method";
+		    else
+			msg = "called with reference argument";
+		}
+	    }
+	    else if (items > 1) {
+		data = (unsigned char *)SvPVbyte(ST(0), len);
+		if (len == 12 && memEQ("Digest::SHA1", data, 12)) {
+		    msg = "probably called as class method";
+		}
+	    }
+	    if (msg) {
+		const char *f = (ix == F_BIN) ? "sha1" :
+                                (ix == F_HEX) ? "sha1_hex" : "sha1_base64";
+	        warn("&Digest::SHA1::%s function %s", f, msg);
+	    }
+	}
+
+	for (i = 0; i < items; i++) {
+	    data = (unsigned char *)(SvPVbyte(ST(i), len));
+	    sha_update(&ctx, data, len);
+	}
+	sha_final(digeststr, &ctx);
+        ST(0) = make_mortal_sv(aTHX_ digeststr, ix);
+        XSRETURN(1);
+
+void
+sha1_transform(data)
+	SV* data
+    PREINIT:
+        SHA_INFO ctx;
+        unsigned char *data_pv;
+        unsigned char test[64];
+        STRLEN len;
+        unsigned char digeststr[20];
+    PPCODE:
+        sha_init(&ctx);
+        
+        memset (test, 0, 64);
+        data_pv = (unsigned char *)(SvPVbyte(data, len));
+        memcpy (test, data_pv, len);
+	memcpy ((&ctx)->data, test, 64);
+        sha_transform_and_copy(digeststr, &ctx);
+        ST(0) = sv_2mortal(newSVpv((char*)digeststr, 20));
+        XSRETURN(1);
+
--- a/fip180-1.gif
+++ b/fip180-1.gif
--- a/fip180-1.html
+++ b/fip180-1.html
--- a/hints/irix_6.pl
+++ b/hints/irix_6.pl
@ -0,0 +1,6 @@
+# The Mongoose v7.1 compiler freezes up somewhere in the optimization of
+# MD5Transform() in MD5.c with optimization -O3.  This is a workaround:
+
+if ($Config{cc} =~ /64|n32/ && `$Config{cc} -version 2>&1` =~ /\s7\.1/) {
+    $self->{OPTIMIZE} = "-O1";
+}
--- a/t/badfile.t
+++ b/t/badfile.t
@ -0,0 +1,19 @@
+print "1..2\n";
+
+use Digest::SHA1 ();
+
+$sha1 = Digest::SHA1->new;
+
+eval {
+   use vars qw(*FOO);
+   $sha1->addfile(*FOO);
+};
+print "not " unless $@ =~ /^Bad filehandle: FOO at/;
+print "ok 1\n";
+
+open(BAR, "no-existing-file.$$");
+eval {
+    $sha1->addfile(*BAR);
+};
+print "not " unless $@ =~ /^No filehandle passed at/;
+print "ok 2\n";
--- a/t/bits.t
+++ b/t/bits.t
@ -0,0 +1,36 @@
+#!perl -w
+
+BEGIN {
+    if ($] < 5.005) {
+	# Test module can't be expected to be available
+	# and I ended up with seg faults when trying to
+	# load it with eval { require Test };
+	print "1..0\n";
+	exit;
+    }
+}
+
+use Test qw(plan ok);
+plan tests => 2;
+
+use Digest::SHA1;
+
+my $sha1 = Digest::SHA1->new;
+
+if ($Digest::base::VERSION && $Digest::base::VERSION) {
+    $sha1->add_bits("01111111");
+    ok($sha1->hexdigest, "23833462f55515a900e016db2eb943fb474c19f6");
+    eval {
+	$sha1->add_bits("0111");
+    };
+    ok($@ =~ /must be multiple of 8/);
+}
+else {
+    print "# No Digest::base\n";
+    eval {
+	$sha1->add_bits("foo");
+    };
+    ok($@ =~ /^Can\'t locate Digest\/base\.pm in \@INC/);
+    ok(1);  # dummy
+}
+
--- a/t/sha1.t
+++ b/t/sha1.t
@ -0,0 +1,62 @@
+print "1..13\n";
+
+use Digest::SHA1 qw(sha1 sha1_hex sha1_base64 sha1_transform);
+
+print "not " unless Digest::SHA1->new->add("abc")->hexdigest eq "a9993e364706816aba3e25717850c26c9cd0d89d";
+print "ok 1\n";
+
+print "not " unless sha1("abc") eq pack("H*", "a9993e364706816aba3e25717850c26c9cd0d89d");
+print "ok 2\n";
+
+print "not " unless sha1_hex("abc") eq "a9993e364706816aba3e25717850c26c9cd0d89d";
+print "ok 3\n";
+
+print "not " unless sha1_base64("abc") eq "qZk+NkcGgWq6PiVxeFDCbJzQ2J0";
+print "ok 4\n";
+
+# Test file checking from too...
+open(FILE, ">stest$$.txt") || die;
+binmode(FILE);
+for (1..512) {
+    print FILE "This is line $_\n";
+}
+close(FILE);
+
+open(FILE, "stest$$.txt") || die;
+$digest = Digest::SHA1->new->addfile(*FILE)->b64digest;
+print "$digest\nnot " unless $digest eq "1ZuIK/sQeBwqh+dIACqpnoRQUE4";
+print "ok 5\n";
+close(FILE);
+
+unlink("stest$$.txt");
+
+
+print "not " unless sha1_transform(pack('H*', 'dc71a8092d4b1b7b98101d58698d9d1cc48225bb')) 
+	eq pack('H*', '2e4c75ad39160f52614d122e6c7ec80446f68567');
+print "ok 6\n";
+
+print "not " unless sha1_transform(pack('H*', '0abe1db666612acdf95d2f86d60c65210b78ab23')) 
+	eq pack('H*', '7c1c2aabca822912f3016299b160035787477b48');
+print "ok 7\n";
+
+print "not " unless sha1_transform(pack('H*', '86da486230e353e0ec5e9220876c687892c0266c')) 
+	eq pack('H*', '1da304aec652c21d4f54642434705c91aeaf9abe');
+print "ok 8\n";
+
+$digest = Digest::SHA1->new;
+print "not " unless $digest->hexdigest eq "da39a3ee5e6b4b0d3255bfef95601890afd80709";
+print "ok 9\n";
+
+print "not " unless $digest->clone->hexdigest eq "da39a3ee5e6b4b0d3255bfef95601890afd80709";
+print "ok 10\n";
+
+$digest->add("abc");
+print "not " unless $digest->clone->hexdigest eq "a9993e364706816aba3e25717850c26c9cd0d89d";
+print "ok 11\n";
+
+$digest->add("d");
+print "not " unless $digest->hexdigest eq "81fe8bfe87576c3ecb22426f8e57847382917acf";
+print "ok 12\n";
+
+print "not " unless $digest->hexdigest eq "da39a3ee5e6b4b0d3255bfef95601890afd80709";
+print "ok 13\n";
--- a/5
+++ b/5
@ -0,0 +1,5 @@
+SHA_INFO*	T_SHA_INFO
+
+INPUT
+T_SHA_INFO
+	$var = get_sha_info(aTHX_ $arg)