md5.c revision 52949 
1/*
2 * Derived from:
3 *
4 * MDDRIVER.C - test driver for MD2, MD4 and MD5
5 */
6
7/*
8 *  Copyright (C) 1990-2, RSA Data Security, Inc. Created 1990. All
9 *  rights reserved.
10 *
11 *  RSA Data Security, Inc. makes no representations concerning either
12 *  the merchantability of this software or the suitability of this
13 *  software for any particular purpose. It is provided "as is"
14 *  without express or implied warranty of any kind.
15 *
16 *  These notices must be retained in any copies of any part of this
17 *  documentation and/or software.
18 */
19
20#ifndef lint
21static const char rcsid[] =
22  "$FreeBSD: head/sbin/md5/md5.c 52949 1999-11-07 04:14:55Z obrien $";
23#endif /* not lint */
24
25#include <sys/types.h>
26#include <err.h>
27#include <md5.h>
28#include <stdio.h>
29#include <time.h>
30#include <unistd.h>
31#include <string.h>
32
33#include "global.h"
34
35/*
36 * Length of test block, number of test blocks.
37 */
38#define TEST_BLOCK_LEN 10000
39#define TEST_BLOCK_COUNT 100000
40
41int rflag;
42
43static void MDString PROTO_LIST((char *));
44static void MDTimeTrial PROTO_LIST((void));
45static void MDTestSuite PROTO_LIST((void));
46static void MDFilter PROTO_LIST((int));
47static void usage PROTO_LIST((void));
48
49/* Main driver.
50
51Arguments (may be any combination):
52  -sstring - digests string
53  -t       - runs time trial
54  -x       - runs test script
55  filename - digests file
56  (none)   - digests standard input
57 */
58int
59main(argc, argv)
60	int     argc;
61	char   *argv[];
62{
63	int     ch;
64	char   *p;
65	char	buf[33];
66
67	if (argc > 1) {
68		while ((ch = getopt(argc, argv, "ps:rtx")) != -1) {
69			switch (ch) {
70			case 'p':
71				MDFilter(1);
72				break;
73			case 'r':
74				rflag = 1;
75				break;
76			case 's':
77				MDString(optarg);
78				break;
79			case 't':
80				MDTimeTrial();
81				break;
82			case 'x':
83				MDTestSuite();
84				break;
85			default:
86				usage();
87			}
88		}
89		while (optind < argc) {
90			p = MD5File(argv[optind], buf);
91			if (!p)
92				warn("%s", argv[optind]);
93			else
94				if (rflag)
95					printf("MD5 %s  %s\n", p, argv[optind]);
96				else
97					printf("MD5 (%s) = %s\n", argv[optind],
98					    p);
99			optind++;
100		}
101	} else
102		MDFilter(0);
103
104	return (0);
105}
106/*
107 * Digests a string and prints the result.
108 */
109static void
110MDString(string)
111	char   *string;
112{
113	size_t len = strlen(string);
114	char buf[33];
115
116	if (rflag)
117		printf("MD5 %s (\"%s\")\n", MD5Data(string, len, buf), string);
118	else
119		printf("MD5 (\"%s\") = %s\n", string, MD5Data(string, len, buf));
120}
121/*
122 * Measures the time to digest TEST_BLOCK_COUNT TEST_BLOCK_LEN-byte blocks.
123 */
124static void
125MDTimeTrial()
126{
127	MD5_CTX context;
128	time_t  endTime, startTime;
129	unsigned char block[TEST_BLOCK_LEN];
130	unsigned int i;
131	char   *p, buf[33];
132
133	printf
134	    ("MD5 time trial. Digesting %d %d-byte blocks ...",
135	    TEST_BLOCK_COUNT, TEST_BLOCK_LEN);
136	fflush(stdout);
137
138	/* Initialize block */
139	for (i = 0; i < TEST_BLOCK_LEN; i++)
140		block[i] = (unsigned char) (i & 0xff);
141
142	/* Start timer */
143	time(&startTime);
144
145	/* Digest blocks */
146	MD5Init(&context);
147	for (i = 0; i < TEST_BLOCK_COUNT; i++)
148		MD5Update(&context, block, TEST_BLOCK_LEN);
149	p = MD5End(&context,buf);
150
151	/* Stop timer */
152	time(&endTime);
153
154	printf(" done\n");
155	printf("Digest = %s", p);
156	printf("\nTime = %ld seconds\n", (long) (endTime - startTime));
157	/* Be careful that endTime-startTime is not zero. (Bug fix from Ric
158	 * Anderson, ric@Artisoft.COM.) */
159	printf
160	    ("Speed = %ld bytes/second\n",
161	    (long) TEST_BLOCK_LEN * (long) TEST_BLOCK_COUNT / ((endTime - startTime) != 0 ? (endTime - startTime) : 1));
162}
163/*
164 * Digests a reference suite of strings and prints the results.
165 */
166static void
167MDTestSuite()
168{
169
170	printf("MD5 test suite:\n");
171
172	MDString("");
173	MDString("a");
174	MDString("abc");
175	MDString("message digest");
176	MDString("abcdefghijklmnopqrstuvwxyz");
177	MDString
178	    ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789");
179	MDString
180	    ("1234567890123456789012345678901234567890\
1811234567890123456789012345678901234567890");
182}
183
184/*
185 * Digests the standard input and prints the result.
186 */
187static void
188MDFilter(pipe)
189	int pipe;
190{
191	MD5_CTX context;
192	int     len;
193	unsigned char buffer[BUFSIZ];
194	char buf[33];
195
196	MD5Init(&context);
197	while ((len = fread(buffer, 1, BUFSIZ, stdin))) {
198		if(pipe && (len != fwrite(buffer, 1, len, stdout)))
199			err(1, "stdout");
200		MD5Update(&context, buffer, len);
201	}
202	printf("%s\n", MD5End(&context,buf));
203}
204
205static void
206usage()
207{
208
209	fprintf(stderr, "usage: md5 [-ptx] [-s string] [files ...]\n");
210	exit(1);
211}
212