md2.c revision 296465 
1/* crypto/md2/md2.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to.  The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 *    notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 *    notice, this list of conditions and the following disclaimer in the
30 *    documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 *    must display the following acknowledgement:
33 *    "This product includes cryptographic software written by
34 *     Eric Young (eay@cryptsoft.com)"
35 *    The word 'cryptographic' can be left out if the rouines from the library
36 *    being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 *    the apps directory (application code) you must include an acknowledgement:
39 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed.  i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60#include <stdlib.h>
61#include <openssl/md2.h>
62
63#define BUFSIZE 1024*16
64
65void do_fp(FILE *f);
66void pt(unsigned char *md);
67int read(int, void *, unsigned int);
68void exit(int);
69int main(int argc, char *argv[])
70{
71    int i, err = 0;
72    FILE *IN;
73
74    if (argc == 1) {
75        do_fp(stdin);
76    } else {
77        for (i = 1; i < argc; i++) {
78            IN = fopen(argv[i], "r");
79            if (IN == NULL) {
80                perror(argv[i]);
81                err++;
82                continue;
83            }
84            printf("MD2(%s)= ", argv[i]);
85            do_fp(IN);
86            fclose(IN);
87        }
88    }
89    exit(err);
90    return (err);
91}
92
93void do_fp(FILE *f)
94{
95    MD2_CTX c;
96    unsigned char md[MD2_DIGEST_LENGTH];
97    int fd, i;
98    static unsigned char buf[BUFSIZE];
99
100    fd = fileno(f);
101    MD2_Init(&c);
102    for (;;) {
103        i = read(fd, buf, BUFSIZE);
104        if (i <= 0)
105            break;
106        MD2_Update(&c, buf, (unsigned long)i);
107    }
108    MD2_Final(&(md[0]), &c);
109    pt(md);
110}
111
112void pt(unsigned char *md)
113{
114    int i;
115
116    for (i = 0; i < MD2_DIGEST_LENGTH; i++)
117        printf("%02x", md[i]);
118    printf("\n");
119}
120