/*      $NetBSD: md5.c,v 1.10 2008/12/29 00:51:29 christos Exp $        */

/*
 * MDDRIVER.C - test driver for MD2, MD4 and MD5
 */

/*
 *  Copyright (C) 1990-2, RSA Data Security, Inc. Created 1990. All
 *  rights reserved.
 *
 *  RSA Data Security, Inc. makes no representations concerning either
 *  the merchantability of this software or the suitability of this
 *  software for any particular purpose. It is provided "as is"
 *  without express or implied warranty of any kind.
 *
 *  These notices must be retained in any copies of any part of this
 *  documentation and/or software.
 */

#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif

#include <sys/cdefs.h>
#if defined(__RCSID) && !defined(lint)
__RCSID("$NetBSD: md5.c,v 1.10 2008/12/29 00:51:29 christos Exp $");
#endif /* not lint */

#include <sys/types.h>

#include <err.h>
#include <md5.h>
#include <stdio.h>
#include <string.h>
#include <time.h>

void    MD5Filter(int);
void    MD5String(const char *);
void    MD5TestSuite(void);
void    MD5TimeTrial(void);

#ifndef HASHTYPE
#define HASHTYPE "MD5"
#endif

#ifndef HASHLEN
#define HASHLEN 32
#endif

/*
 * Length of test block, number of test blocks.
 */
#define TEST_BLOCK_LEN 1000
#define TEST_BLOCK_COUNT 1000

/*
 * Digests a string and prints the result.
 */
void
MD5String(const char *string)
{
        unsigned int len = strlen(string);
        char buf[HASHLEN + 1];

        printf("%s (\"%s\") = %s\n", HASHTYPE, string,
               MD5Data((const unsigned char *)string, len, buf));
}

/*
 * Measures the time to digest TEST_BLOCK_COUNT TEST_BLOCK_LEN-byte blocks.
 */
void
MD5TimeTrial(void)
{
        MD5_CTX context;
        time_t endTime, startTime;
        unsigned char block[TEST_BLOCK_LEN];
        unsigned int i;
        char *p, buf[HASHLEN + 1];

        printf("%s time trial.  Digesting %d %d-byte blocks ...", HASHTYPE,
            TEST_BLOCK_LEN, TEST_BLOCK_COUNT);
        fflush(stdout);

        /* Initialize block */
        for (i = 0; i < TEST_BLOCK_LEN; i++)
                block[i] = (unsigned char) (i & 0xff);

        /* Start timer */
        time(&startTime);

        /* Digest blocks */
        MD5Init(&context);
        for (i = 0; i < TEST_BLOCK_COUNT; i++)
                MD5Update(&context, block, TEST_BLOCK_LEN);
        p = MD5End(&context,buf);

        /* Stop timer */
        time(&endTime);

        printf(" done\n");
        printf("Digest = %s\n", p);
        printf("Time = %ld seconds\n", (long) (endTime - startTime));

        /*
         * Be careful that endTime-startTime is not zero.
         * (Bug fix from Ric * Anderson, ric@Artisoft.COM.)
         */
        printf("Speed = %lld bytes/second\n",
            (long long) TEST_BLOCK_LEN * TEST_BLOCK_COUNT /
            ((endTime - startTime) != 0 ? (endTime - startTime) : 1));
}

/*
 * Digests a reference suite of strings and prints the results.
 */
void
MD5TestSuite(void)
{
        printf("%s test suite:\n", HASHTYPE);

        MD5String("");
        MD5String("a");
        MD5String("abc");
        MD5String("message digest");
        MD5String("abcdefghijklmnopqrstuvwxyz");
        MD5String("abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq");
        MD5String
            ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789");
        MD5String
            ("1234567890123456789012345678901234567890\
1234567890123456789012345678901234567890");
}

/*
 * Digests the standard input and prints the result.
 */
void
MD5Filter(int pipe)
{
        MD5_CTX context;
        size_t len;
        unsigned char buffer[BUFSIZ];
        char buf[HASHLEN + 1];

        MD5Init(&context);
        while ((len = fread(buffer, (size_t)1, (size_t)BUFSIZ, stdin)) > 0) {
                if (pipe && (len != fwrite(buffer, (size_t)1, len, stdout)))
                        err(1, "stdout");
                MD5Update(&context, buffer, (unsigned int)len);
        }
        printf("%s\n", MD5End(&context,buf));
}