Put public domain MD2 implementation in libc/hash/md2.
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# $NetBSD: Makefile.inc,v 1.9 2005/09/24 19:04:52 elad Exp $
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# $NetBSD: Makefile.inc,v 1.10 2005/09/24 20:51:14 elad Exp $
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# $OpenBSD: Makefile.inc,v 1.5 1997/07/17 06:02:42 millert Exp $
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# hash functions
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.PATH: ${ARCHDIR}/hash ${.CURDIR}/hash
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.include "${.CURDIR}/hash/md2/Makefile.inc"
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.include "${.CURDIR}/hash/md5/Makefile.inc"
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.include "${.CURDIR}/hash/rmd160/Makefile.inc"
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.include "${.CURDIR}/hash/sha1/Makefile.inc"
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12
lib/libc/hash/md2/Makefile.inc
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12
lib/libc/hash/md2/Makefile.inc
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# $NetBSD: Makefile.inc,v 1.1 2005/09/24 20:51:14 elad Exp $
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# hash functions
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.PATH: ${.CURDIR}/hash/md2
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SRCS+= md2.c md2hl.c
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MAN+= md2.3
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MLINKS+=md2.3 MD2Init.3 md2.3 MD2Update.3 md2.3 MD2Final.3
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MLINKS+=md2.3 MD2End.3 md2.3 MD2File.3 md2.3 MD2Data.3
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MLINKS+=md2.3 MD2Transform.3 md2.3 MD2FileChunk.3
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123
lib/libc/hash/md2/md2.3
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123
lib/libc/hash/md2/md2.3
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.\" $NetBSD: md2.3,v 1.1 2005/09/24 20:51:14 elad Exp $
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.\"
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.\" ----------------------------------------------------------------------------
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.\" "THE BEER-WARE LICENSE" (Revision 42):
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.\" <phk@login.dkuug.dk> wrote this file. As long as you retain this notice you
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.\" can do whatever you want with this stuff. If we meet some day, and you think
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.\" this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
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.\" ----------------------------------------------------------------------------
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.\"
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.\" from FreeBSD Id: mdX.3,v 1.7 1996/10/22 16:28:56 phk Exp
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.\"
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.Dd September 24, 2005
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.Dt MD2 3
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.Os
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.Sh NAME
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.Nm MD2Init ,
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.Nm MD2Update ,
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.Nm MD2Final ,
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.Nm MD2End ,
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.Nm MD2File ,
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.Nm MD2Data
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.Nd calculate the RSA Data Security, Inc.,
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.Dq MD2
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message digest
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.Sh LIBRARY
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.Lb libc
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.Sh SYNOPSIS
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.In sys/types.h
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.In mdX.h
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.Ft void
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.Fn MD2Init "MD2_CTX *context"
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.Ft void
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.Fn MD2Update "MD2_CTX *context" "const unsigned char *data" "unsigned int len"
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.Ft void
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.Fn MD2Final "unsigned char digest[16]" "MD2_CTX *context"
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.Ft "char *"
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.Fn MD2End "MD2_CTX *context" "char *buf"
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.Ft "char *"
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.Fn MD2File "const char *filename" "char *buf"
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.Ft "char *"
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.Fn MD2Data "const unsigned char *data" "unsigned int len" "char *buf"
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.Sh DESCRIPTION
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The MD2 functions calculate a 128-bit cryptographic checksum (digest)
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for any number of input bytes.
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A cryptographic checksum is a one-way
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hash-function, that is, you cannot find (except by exhaustive search)
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the input corresponding to a particular output.
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This net result is
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a ``fingerprint'' of the input-data, which doesn't disclose the actual
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input.
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.Pp
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The MD2 routines should not be used for any security-related purpose.
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.Pp
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The
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.Fn MD2Init ,
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.Fn MD2Update ,
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and
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.Fn MD2Final
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functions are the core functions.
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Allocate an MD2_CTX, initialize it with
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.Fn MD2Init ,
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run over the data with
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.Fn MD2Update ,
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and finally extract the result using
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.Fn MD2Final .
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.Pp
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.Fn MD2End
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is a wrapper for
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.Fn MD2Final
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which converts the return value to a 33-character
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(including the terminating '\e0')
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.Tn ASCII
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string which represents the 128 bits in hexadecimal.
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.Pp
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.Fn MD2File
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calculates the digest of a file, and uses
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.Fn MD2End
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to return the result.
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If the file cannot be opened, a null pointer is returned.
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.Fn MD2Data
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calculates the digest of a chunk of data in memory, and uses
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.Fn MD2End
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to return the result.
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.Pp
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When using
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.Fn MD2End ,
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.Fn MD2File ,
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or
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.Fn MD2Data ,
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the
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.Ar buf
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argument can be a null pointer, in which case the returned string
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is allocated with
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.Xr malloc 3
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and subsequently must be explicitly deallocated using
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.Xr free 3
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after use.
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If the
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.Ar buf
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argument is non-null it must point to at least 33 characters of buffer space.
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.Sh SEE ALSO
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.Xr md2 3 ,
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.Rs
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.%A B. Kaliski
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.%T The MD2 Message-Digest Algorithm
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.%O RFC 1319
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.Re
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.Rs
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.%A RSA Laboratories
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.%T Frequently Asked Questions About today's Cryptography
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.Re
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.Sh HISTORY
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These functions appeared in
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.Nx 1.3 .
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.Sh AUTHORS
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The original MD2 routines were developed by
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.Tn RSA
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Data Security, Inc., and published in the above references.
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This code is a public domain implementation by Andrew Brown.
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.Sh BUGS
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No method is known to exist which finds two files having the same hash value,
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nor to find a file with a specific hash value.
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There is on the other hand no guarantee that such a method doesn't exist.
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@ -1,4 +1,4 @@
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/* $NetBSD: md2c.c,v 1.5 2005/06/12 05:21:27 lukem Exp $ */
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/* $NetBSD: md2.c,v 1.1 2005/09/24 20:51:14 elad Exp $ */
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/*
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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@ -38,7 +38,7 @@
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: md2c.c,v 1.5 2005/06/12 05:21:27 lukem Exp $");
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__RCSID("$NetBSD: md2.c,v 1.1 2005/09/24 20:51:14 elad Exp $");
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#endif /* LIBC_SCCS and not lint */
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#include "namespace.h"
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23
lib/libc/hash/md2/md2hl.c
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23
lib/libc/hash/md2/md2hl.c
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/* $NetBSD: md2hl.c,v 1.1 2005/09/24 20:51:14 elad Exp $ */
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/*
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* Derived from code ritten by Jason R. Thorpe <thorpej@NetBSD.org>,
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* April 29, 1997.
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* Public domain.
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: md2hl.c,v 1.1 2005/09/24 20:51:14 elad Exp $");
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#endif /* LIBC_SCCS and not lint */
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#define HASH_ALGORITHM MD2
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#include "namespace.h"
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#include <md2.h> /* XXX */
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#if HAVE_NBTOOL_CONFIG_H
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#include "nbtool_config.h"
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#endif
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#include "../hash.c"
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@ -1,28 +1,22 @@
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# $NetBSD: Makefile.inc,v 1.6 2001/03/19 04:13:17 atatat Exp $
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# $NetBSD: Makefile.inc,v 1.7 2005/09/24 20:51:14 elad Exp $
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.include <bsd.own.mk>
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# MD2/MD4/MD5 sources
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# MD4/MD5 sources
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.PATH: ${ARCHDIR}/md ${.CURDIR}/md
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SRCS+= md2c.c md4c.c md5c.c md2hl.c md4hl.c md5hl.c
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SRCS+= md4c.c md5c.c md4hl.c md5hl.c
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MAN+= md2.3 md4.3 md5.3
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MAN+= md4.3 md5.3
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MLINKS+=md2.3 MD2Init.3 md2.3 MD2Update.3 md2.3 MD2Final.3
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MLINKS+=md2.3 MD2End.3 md2.3 MD2File.3 md2.3 MD2Data.3
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MLINKS+=md4.3 MD4Init.3 md4.3 MD4Update.3 md4.3 MD4Final.3
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MLINKS+=md4.3 MD4End.3 md4.3 MD4File.3 md4.3 MD4Data.3
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MLINKS+=md5.3 MD5Init.3 md5.3 MD5Update.3 md5.3 MD5Final.3
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MLINKS+=md5.3 MD5End.3 md5.3 MD5File.3 md5.3 MD5Data.3
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CLEANFILES+= md[245]hl.c md[245].3
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CLEANFILES+= md[45]hl.c md[45].3
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.if ${MKMAN} != "no"
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md2.3: mdX.3
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sed -e 's/mdX/md2/g' -e 's/MDX/MD2/g' $> > $@
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cat ${>:H}/md2.copyright >> $@
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md4.3: mdX.3
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sed -e 's/mdX/md4/g' -e 's/MDX/MD4/g' $> > $@
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cat ${>:H}/md4.copyright >> $@
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@ -1,2 +0,0 @@
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.\" $NetBSD: md2.copyright,v 1.1 2001/03/19 04:13:17 atatat Exp $
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This code is in the public domain.
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