Add MD2, MD4, SHA1, and RMD160 support to cksum. Adding new hashes to

cksum(1) should now be easy.

usr.bin/cksum/Makefile

@@ -1,11 +1,19 @@
-#	$NetBSD: Makefile,v 1.9 1997/10/18 12:49:08 lukem Exp $
+#	$NetBSD: Makefile,v 1.10 2001/03/20 18:46:25 atatat Exp $
 #	@(#)Makefile	8.2 (Berkeley) 4/28/95
 
 PROG=	cksum
-SRCS=	cksum.c crc.c md5.c print.c sum1.c sum2.c
+SRCS=	cksum.c crc.c md2.c md4.c md5.c sha1.c rmd160.c print.c sum1.c sum2.c
 LINKS=	${BINDIR}/cksum ${BINDIR}/sum
+LINKS+=	${BINDIR}/cksum ${BINDIR}/md2
+LINKS+=	${BINDIR}/cksum ${BINDIR}/md4
 LINKS+=	${BINDIR}/cksum ${BINDIR}/md5
+LINKS+=	${BINDIR}/cksum ${BINDIR}/sha1
+LINKS+=	${BINDIR}/cksum ${BINDIR}/rmd160
 MLINKS=	cksum.1 sum.1
+MLINKS+=cksum.1 md2.1
+MLINKS+=cksum.1 md4.1
 MLINKS+=cksum.1 md5.1
+MLINKS+=cksum.1 sha1.1
+MLINKS+=cksum.1 rmd160.1
 
 .include <bsd.prog.mk>

usr.bin/cksum/cksum.1

@@ -1,4 +1,4 @@
-.\"	$NetBSD: cksum.1,v 1.14 2000/07/03 05:27:15 enami Exp $
+.\"	$NetBSD: cksum.1,v 1.15 2001/03/20 18:46:25 atatat Exp $
 .\"
 .\" Copyright (c) 1991, 1993
 .\"	The Regents of the University of California.  All rights reserved.
@@ -41,24 +41,57 @@
 .Os
 .Sh NAME
 .Nm cksum ,
+.Nm md2 ,
+.Nm md4 ,
 .Nm md5 ,
+.Nm sha1 ,
+.Nm rmd160 ,
 .Nm sum
 .Nd display file checksums and block counts
 .Sh SYNOPSIS
 .Nm
 .Oo
 .Fl m |
+.Fl 1 |
+.Fl 2 |
+.Fl 4 |
+.Fl 5 |
+.Fl 6 |
 .Op Fl o Ar 1 | Ar 2
 .Oc
 .Op Ar
 .Nm sum
 .Op Ar
+.Nm md2
+.Op Fl p
+.Op Fl t
+.Op Fl x
+.Op Fl s Ar string
+.Op Ar
+.Nm md4
+.Op Fl p
+.Op Fl t
+.Op Fl x
+.Op Fl s Ar string
+.Op Ar
 .Nm md5
 .Op Fl p
 .Op Fl t
 .Op Fl x
 .Op Fl s Ar string
 .Op Ar
+.Nm sha1
+.Op Fl p
+.Op Fl t
+.Op Fl x
+.Op Fl s Ar string
+.Op Ar
+.Nm rmd160
+.Op Fl p
+.Op Fl t
+.Op Fl x
+.Op Fl s Ar string
+.Op Ar
 .Sh DESCRIPTION
 The
 .Nm
@@ -95,10 +128,33 @@ in a secure manner before being encrypted with a private (secret)
 key under a public-key encryption system such as
 .Pa RSA .
 .Pp
+The
+.Nm md2
+and
+.Nm md4
+utilities behave in exactly the same manner as
+.Nm md5
+but use a different algorithms.
+.Pp
+The
+.Nm sha1
+and
+.Nm rmd160
+utilities also produce message digests, however the output from these
+two programs is 160 bits in length, as opposed to 128.
+.Pp
 The options are as follows:
 .Bl -tag -width indent
-.It Fl m
+.It Fl 1
+Use the SHA1 algorithm rather than the default one.
+.It Fl 2
+Use the MD2 algorithm rather than the default one.
+.It Fl 4
+Use the MD4 algorithm rather than the default one.
+.It Fl m | 5
 Use the MD5 algorithm rather than the default one.
+.It Fl 6
+Use the RMD160 algorithm rather than the default one.
 .It Fl o
 Use historic algorithms instead of the (superior) default one.
 .Pp
@@ -137,17 +193,23 @@ for algorithm 2.
 Partial blocks are rounded up.
 .El
 .Pp
-The following options apply only when using the MD5 algorithm:
+The following options apply only when using the one of the message
+digest algorithms:
 .Bl -tag -width indent
 .It Fl s Ar string
-Print the MD5 checksum of the given string
+Print the hash of the given string
 .Ar string .
 .It Fl p
-Echo input from standard input to standard output, and append an MD5 checksum.
+Echo input from standard input to standard output, and append the
+selected message digest.
 .It Fl t
-Run a built-in MD5 time trial.
+Run a built-in message digest time trial.
 .It Fl x
-Run a built-in MD5 test script.
+Run a built-in message digest test script.  The tests that are run
+are supposed to encompass all the various tests in the suites that
+accompany the algorithms' descriptions with the exception of the the
+last test for the SHA-1 algorithm and the RIPEMD-160 algorithm.  The
+last test for these is one million copies of the lower letter a.
 .El
 .Pp
 The default
@@ -210,6 +272,26 @@ article.
 .%J "Communications of the \\*(tNACM\\*(sP"
 .%D "August 1988"
 .Re
+.Rs
+.%A R. Rivest
+.%T The MD2 Message-Digest Algorithm
+.%O RFC 1319
+.Re
+.Rs
+.%A R. Rivest
+.%T The MD4 Message-Digest Algorithm
+.%O RFC 1186 and RFC 1320
+.Re
+.Rs
+.%A R. Rivest
+.%T The MD5 Message-Digest Algorithm
+.%O RFC 1321
+.Re
+.Rs
+.%A U.S. DOC/NIST
+.%T Secure Hash Standard
+.%O FIPS PUB 180-1
+.Re
 .Sh STANDARDS
 The
 .Nm
@@ -220,6 +302,14 @@ The
 .Nm
 utility appeared in
 .Bx 4.4 .
+The functionality for
+.Nm md2 ,
+.Nm md4 ,
+.Nm sha1 ,
+and
+.Nm rmd160
+was added in
+.Nx 1.6 .
 .\" .Pp
 .\" The
 .\" .Nm sum

usr.bin/cksum/cksum.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: cksum.c,v 1.12 2001/02/19 23:03:45 cgd Exp $	*/
+/*	$NetBSD: cksum.c,v 1.13 2001/03/20 18:46:25 atatat Exp $	*/
 
 /*-
  * Copyright (c) 1997 Jason R. Thorpe.  All rights reserved.
@@ -47,7 +47,7 @@ __COPYRIGHT("@(#) Copyright (c) 1991, 1993\n\
 #if 0
 static char sccsid[] = "@(#)cksum.c	8.2 (Berkeley) 4/28/95";
 #endif
-__RCSID("$NetBSD: cksum.c,v 1.12 2001/02/19 23:03:45 cgd Exp $");
+__RCSID("$NetBSD: cksum.c,v 1.13 2001/03/20 18:46:25 atatat Exp $");
 #endif /* not lint */
 
 #include <sys/cdefs.h>
@@ -58,6 +58,10 @@ __RCSID("$NetBSD: cksum.c,v 1.12 2001/02/19 23:03:45 cgd Exp $");
 #include <fcntl.h>
 #include <locale.h>
 #include <md5.h>
+#include <md4.h>
+#include <md2.h>
+#include <sha1.h>
+#include <rmd160.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -65,9 +69,44 @@ __RCSID("$NetBSD: cksum.c,v 1.12 2001/02/19 23:03:45 cgd Exp $");
 
 #include "extern.h"
 
+#define HASH_MD2	0
+#define HASH_MD4	1
+#define HASH_MD5	2
+#define HASH_SHA1	3
+#define HASH_RMD160	4
+
+typedef char *(*_filefunc)(const char *, char *);
+
+struct hash {
+	const char *progname;
+	const char *hashname;
+	void (*stringfunc)(const char *);
+	void (*timetrialfunc)(void);
+	void (*testsuitefunc)(void);
+	void (*filterfunc)(int);
+	char *(*filefunc)(const char *, char *);
+} hashes[] = {
+	{ "md2", "MD2",
+	  MD2String, MD2TimeTrial, MD2TestSuite,
+	  MD2Filter, MD2File },
+	{ "md4", "MD4",
+	  MD4String, MD4TimeTrial, MD4TestSuite,
+	  MD4Filter, MD4File },
+	{ "md5", "MD5",
+	  MD5String, MD5TimeTrial, MD5TestSuite,
+	  MD5Filter, MD5File },
+	{ "sha1", "SHA1",
+	  SHA1String, SHA1TimeTrial, SHA1TestSuite,
+	  SHA1Filter, (_filefunc) SHA1File },
+	{ "rmd160", "RMD160",
+	  RMD160String, RMD160TimeTrial, RMD160TestSuite,
+	  RMD160Filter, (_filefunc) RMD160File },
+	{ NULL }
+};
+
 int	main __P((int, char **));
-int	md5_digest_file __P((char *));
+int	hash_digest_file __P((char *, struct hash *));
-void	requiremd5 __P((const char *));
+void	requirehash __P((const char *));
 void	usage __P((void));
 
 int
@@ -75,41 +114,81 @@ main(argc, argv)
 	int argc;
 	char **argv;
 {
-	register int ch, fd, rval, domd5, dosum, pflag, nomd5stdin;
+	register int ch, fd, rval, dosum, pflag, nohashstdin;
 	u_int32_t len, val;
 	char *fn;
+	const char *progname;
 	int (*cfncn) __P((int, u_int32_t *, u_int32_t *));
 	void (*pfncn) __P((char *, u_int32_t, u_int32_t));
+	struct hash *hash;
 
 	cfncn = NULL;
 	pfncn = NULL;
-	dosum = domd5 = pflag = nomd5stdin = 0;
+	dosum = pflag = nohashstdin = 0;
 
 	setlocale(LC_ALL, "");
 
-	if (!strcmp(getprogname(), "md5"))
+	progname = getprogname();
-		domd5 = 1;
+
-	else if (!strcmp(getprogname(), "sum")) {
+	for (hash = hashes; hash->hashname != NULL; hash++)
-		dosum = 1;
+		if (strcmp(progname, hash->progname) == 0)
-		cfncn = csum1;
+			break;
-		pfncn = psum1;
+
-	} else {
+	if (hash->hashname == NULL) {
-		cfncn = crc;
+		hash = NULL;
-		pfncn = pcrc;
+
+		if (!strcmp(progname, "sum")) {
+			dosum = 1;
+			cfncn = csum1;
+			pfncn = psum1;
+		} else {
+			cfncn = crc;
+			pfncn = pcrc;
+		}
 	}
 
-	while ((ch = getopt(argc, argv, "mo:ps:tx")) != -1)
+	while ((ch = getopt(argc, argv, "mo:ps:tx12456")) != -1)
 		switch(ch) {
+		case '2':
+			if (dosum) {
+				warnx("sum mutually exclusive with md2");
+				usage();
+			}
+			hash = &hashes[HASH_MD2];
+			break;
+		case '4':
+			if (dosum) {
+				warnx("sum mutually exclusive with md4");
+				usage();
+			}
+			hash = &hashes[HASH_MD4];
+			break;
 		case 'm':
+		case '5':
 			if (dosum) {
 				warnx("sum mutually exclusive with md5");
 				usage();
 			}
-			domd5 = 1;
+			hash = &hashes[HASH_MD5];
+			break;
+		case '1':
+			if (dosum) {
+				warnx("sum mutually exclusive with sha1");
+				usage();
+			}
+			hash = &hashes[HASH_SHA1];
+			break;
+		case '6':
+			if (dosum) {
+				warnx("sum mutually exclusive with rmd160");
+				usage();
+			}
+			hash = &hashes[HASH_RMD160];
 			break;
 		case 'o':
-			if (domd5) {
+			if (hash) {
-				warnx("md5 mutually exclusive with sum");
+				warnx("%s mutually exclusive with sum",
+				      hash->hashname);
 				usage();
 			}
 			if (!strcmp(optarg, "1")) {
@@ -124,27 +203,27 @@ main(argc, argv)
 			}
 			break;
 		case 'p':
-			if (!domd5)
+			if (hash == NULL)
-				requiremd5("-p");
+				requirehash("-p");
 			pflag = 1;
 			break;
 		case 's':
-			if (!domd5)
+			if (hash == NULL)
-				requiremd5("-s");
+				requirehash("-s");
-			nomd5stdin = 1;
+			nohashstdin = 1;
-			MDString(optarg);
+			hash->stringfunc(optarg);
 			break;
 		case 't':
-			if (!domd5)
+			if (hash == NULL)
-				requiremd5("-t");
+				requirehash("-t");
-			MDTimeTrial();
+			nohashstdin = 1;
-			nomd5stdin = 1;
+			hash->timetrialfunc();
 			break;
 		case 'x':
-			if (!domd5)
+			if (hash == NULL)
-				requiremd5("-x");
+				requirehash("-x");
-			MDTestSuite();
+			nohashstdin = 1;
-			nomd5stdin = 1;
+			hash->testsuitefunc();
 			break;
 		case '?':
 		default:
@@ -159,8 +238,8 @@ main(argc, argv)
 	do {
 		if (*argv) {
 			fn = *argv++;
-			if (domd5) {
+			if (hash != NULL) {
-				if (md5_digest_file(fn)) {
+				if (hash_digest_file(fn, hash)) {
 					warn("%s", fn);
 					rval = 1;
 				}
@@ -171,10 +250,11 @@ main(argc, argv)
 				rval = 1;
 				continue;
 			}
-		} else if (domd5 && !nomd5stdin)
+		} else if (hash && !nohashstdin) {
-			MDFilter(pflag);
+			hash->filterfunc(pflag);
+		}
 
-		if (!domd5) {
+		if (hash == NULL) {
 			if (cfncn(fd, &val, &len)) {
 				warn("%s", fn ? fn : "stdin");
 				rval = 1;
@@ -187,24 +267,26 @@ main(argc, argv)
 }
 
 int
-md5_digest_file(fn)
+hash_digest_file(fn, hash)
 	char *fn;
+	struct hash *hash;
 {
-	char buf[33], *cp;
+	char buf[41], *cp;
 
-	cp = MD5File(fn, buf);
+	cp = hash->filefunc(fn, buf);
 	if (cp == NULL)
 		return (1);
 
-	printf("MD5 (%s) = %s\n", fn, cp);
+	printf("%s (%s) = %s\n", hash->hashname, fn, cp);
 	return (0);
 }
 
 void
-requiremd5(flg)
+requirehash(flg)
 	const char *flg;
 {
-	warnx("%s flag requires `md5' or -m", flg);
+	warnx("%s flag requires `md2', `md4', `md5', `sha1', or `rmd160'",
+	    flg);
 	usage();
 }
 
@@ -214,7 +296,15 @@ usage()
 
 	(void)fprintf(stderr, "usage: cksum [-m | [-o 1 | 2]] [file ...]\n");
 	(void)fprintf(stderr, "       sum [file ...]\n");
+	(void)fprintf(stderr,
+	    "       md2 [-p | -t | -x | -s string] [file ...]\n");
+	(void)fprintf(stderr,
+	    "       md4 [-p | -t | -x | -s string] [file ...]\n");
 	(void)fprintf(stderr,
 	    "       md5 [-p | -t | -x | -s string] [file ...]\n");
+	(void)fprintf(stderr,
+	    "       sha1 [-p | -t | -x | -s string] [file ...]\n");
+	(void)fprintf(stderr,
+	    "       rmd160 [-p | -t | -x | -s string] [file ...]\n");
 	exit(1);
 }

usr.bin/cksum/extern.h

@@ -1,4 +1,4 @@
-/*	$NetBSD: extern.h,v 1.6 1997/01/30 01:10:35 thorpej Exp $	*/
+/*	$NetBSD: extern.h,v 1.7 2001/03/20 18:46:26 atatat Exp $	*/
 
 /*-
  * Copyright (c) 1991, 1993
@@ -46,8 +46,28 @@ int	csum1 __P((int, u_int32_t *, u_int32_t *));
 int	csum2 __P((int, u_int32_t *, u_int32_t *));
 int	md5 __P((int, u_int32_t *, u_int32_t *));
 
-void	MDString __P((const char *));
+void	MD2String __P((const char *));
-void	MDTimeTrial __P((void));
+void	MD2TimeTrial __P((void));
-void	MDTestSuite __P((void));
+void	MD2TestSuite __P((void));
-void	MDFilter __P((int));
+void	MD2Filter __P((int));
+
+void	MD4String __P((const char *));
+void	MD4TimeTrial __P((void));
+void	MD4TestSuite __P((void));
+void	MD4Filter __P((int));
+
+void	MD5String __P((const char *));
+void	MD5TimeTrial __P((void));
+void	MD5TestSuite __P((void));
+void	MD5Filter __P((int));
+
+void	SHA1String __P((const char *));
+void	SHA1TimeTrial __P((void));
+void	SHA1TestSuite __P((void));
+void	SHA1Filter __P((int));
+
+void	RMD160String __P((const char *));
+void	RMD160TimeTrial __P((void));
+void	RMD160TestSuite __P((void));
+void	RMD160Filter __P((int));
 __END_DECLS

usr.bin/cksum/md2.c

@@ -0,0 +1,21 @@
+/*	$NetBSD: md2.c,v 1.1 2001/03/20 18:46:26 atatat Exp $	*/
+
+#include <md2.h>	/* this hash type */
+#include <md5.h>	/* the hash we're replacing */
+
+#define HASHTYPE	"MD2"
+#define HASHLEN		32
+
+#define MD5Filter	MD2Filter
+#define MD5String	MD2String
+#define MD5TestSuite	MD2TestSuite
+#define MD5TimeTrial	MD2TimeTrial
+
+#define MD5Data		MD2Data
+#define MD5Init		MD2Init
+#define MD5Update	MD2Update
+#define MD5End		MD2End
+
+#define MD5_CTX		MD2_CTX
+
+#include "md5.c"

usr.bin/cksum/md4.c

@@ -0,0 +1,21 @@
+/*	$NetBSD: md4.c,v 1.1 2001/03/20 18:46:26 atatat Exp $	*/
+
+#include <md4.h>	/* this hash type */
+#include <md5.h>	/* the hash we're replacing */
+
+#define HASHTYPE	"MD4"
+#define HASHLEN		32
+
+#define MD5Filter	MD4Filter
+#define MD5String	MD4String
+#define MD5TestSuite	MD4TestSuite
+#define MD5TimeTrial	MD4TimeTrial
+
+#define MD5Data		MD4Data
+#define MD5Init		MD4Init
+#define MD5Update	MD4Update
+#define MD5End		MD4End
+
+#define MD5_CTX		MD4_CTX
+
+#include "md5.c"

usr.bin/cksum/md5.c

@@ -1,4 +1,4 @@
-/*	$NetBSD: md5.c,v 1.2 1997/10/17 11:37:09 lukem Exp $	*/
+/*	$NetBSD: md5.c,v 1.3 2001/03/20 18:46:26 atatat Exp $	*/
 
 /*
  * MDDRIVER.C - test driver for MD2, MD4 and MD5
@@ -19,7 +19,7 @@
 
 #include <sys/cdefs.h>
 #ifndef lint
-__RCSID("$NetBSD: md5.c,v 1.2 1997/10/17 11:37:09 lukem Exp $");
+__RCSID("$NetBSD: md5.c,v 1.3 2001/03/20 18:46:26 atatat Exp $");
 #endif /* not lint */
 
 #include <sys/types.h>
@@ -30,10 +30,18 @@ __RCSID("$NetBSD: md5.c,v 1.2 1997/10/17 11:37:09 lukem Exp $");
 #include <string.h>
 #include <time.h>
 
-void	MDFilter __P((int));
+void	MD5Filter __P((int));
-void	MDString __P((const char *));
+void	MD5String __P((const char *));
-void	MDTestSuite __P((void));
+void	MD5TestSuite __P((void));
-void	MDTimeTrial __P((void));
+void	MD5TimeTrial __P((void));
+
+#ifndef HASHTYPE
+#define HASHTYPE "MD5"
+#endif
+
+#ifndef HASHLEN
+#define HASHLEN 32
+#endif
 
 /*
  * Length of test block, number of test blocks.
@@ -45,28 +53,29 @@ void	MDTimeTrial __P((void));
  * Digests a string and prints the result.
  */
 void
-MDString(string)
+MD5String(string)
 	const char *string;
 {
 	unsigned int len = strlen(string);
-	char buf[33];
+	char buf[HASHLEN + 1];
 
-	printf("MD5 (\"%s\") = %s\n", string, MD5Data(string, len, buf));
+	printf("%s (\"%s\") = %s\n", HASHTYPE, string,
+	       MD5Data(string, len, buf));
 }
 
 /*
  * Measures the time to digest TEST_BLOCK_COUNT TEST_BLOCK_LEN-byte blocks.
  */
 void
-MDTimeTrial()
+MD5TimeTrial()
 {
 	MD5_CTX context;
 	time_t endTime, startTime;
 	unsigned char block[TEST_BLOCK_LEN];
 	unsigned int i;
-	char *p, buf[33];
+	char *p, buf[HASHLEN + 1];
 
-	printf("MD5 time trial.  Digesting %d %d-byte blocks ...",
+	printf("%s time trial.  Digesting %d %d-byte blocks ...", HASHTYPE,
 	    TEST_BLOCK_LEN, TEST_BLOCK_COUNT);
 	fflush(stdout);
 
@@ -103,18 +112,19 @@ MDTimeTrial()
  * Digests a reference suite of strings and prints the results.
  */
 void
-MDTestSuite()
+MD5TestSuite()
 {
-	printf("MD5 test suite:\n");
+	printf("%s test suite:\n", HASHTYPE);
 
-	MDString("");
+	MD5String("");
-	MDString("a");
+	MD5String("a");
-	MDString("abc");
+	MD5String("abc");
-	MDString("message digest");
+	MD5String("message digest");
-	MDString("abcdefghijklmnopqrstuvwxyz");
+	MD5String("abcdefghijklmnopqrstuvwxyz");
-	MDString
+	MD5String("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq");
+	MD5String
 	    ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789");
-	MDString
+	MD5String
 	    ("1234567890123456789012345678901234567890\
 1234567890123456789012345678901234567890");
 }
@@ -123,13 +133,13 @@ MDTestSuite()
  * Digests the standard input and prints the result.
  */
 void
-MDFilter(pipe)
+MD5Filter(pipe)
 	int pipe;
 {
 	MD5_CTX context;
 	int len;
 	unsigned char buffer[BUFSIZ];
-	char buf[33];
+	char buf[HASHLEN + 1];
 
 	MD5Init(&context);
 	while ((len = fread(buffer, 1, BUFSIZ, stdin)) > 0) {

usr.bin/cksum/rmd160.c

@@ -0,0 +1,21 @@
+/*	$NetBSD: rmd160.c,v 1.1 2001/03/20 18:46:26 atatat Exp $	*/
+
+#include <rmd160.h>	/* this hash type */
+#include <md5.h>	/* the hash we're replacing */
+
+#define HASHTYPE	"RMD160"
+#define HASHLEN		40
+
+#define MD5Filter	RMD160Filter
+#define MD5String	RMD160String
+#define MD5TestSuite	RMD160TestSuite
+#define MD5TimeTrial	RMD160TimeTrial
+
+#define MD5Data		RMD160Data
+#define MD5Init		RMD160Init
+#define MD5Update	RMD160Update
+#define MD5End		RMD160End
+
+#define MD5_CTX		RMD160_CTX
+
+#include "md5.c"

usr.bin/cksum/sha1.c

@@ -0,0 +1,21 @@
+/*	$NetBSD: sha1.c,v 1.1 2001/03/20 18:46:27 atatat Exp $	*/
+
+#include <sha1.h>	/* this hash type */
+#include <md5.h>	/* the hash we're replacing */
+
+#define HASHTYPE	"SHA1"
+#define HASHLEN		40
+
+#define MD5Filter	SHA1Filter
+#define MD5String	SHA1String
+#define MD5TestSuite	SHA1TestSuite
+#define MD5TimeTrial	SHA1TimeTrial
+
+#define MD5Data		SHA1Data
+#define MD5Init		SHA1Init
+#define MD5Update	SHA1Update
+#define MD5End		SHA1End
+
+#define MD5_CTX		SHA1_CTX
+
+#include "md5.c"