md5.c revision 88226 
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 88226 2001-12-19 21:19:43Z phk $";
23#endif /* not lint */
24
25#include <sys/types.h>
26#include <err.h>
27#include <md5.h>
28#include <stdio.h>
29#include <stdlib.h>
30#include <string.h>
31#include <time.h>
32#include <unistd.h>
33
34/*
35 * Length of test block, number of test blocks.
36 */
37#define TEST_BLOCK_LEN 10000
38#define TEST_BLOCK_COUNT 100000
39
40int qflag;
41int rflag;
42int sflag;
43
44static void MDString(const char *);
45static void MDTimeTrial(void);
46static void MDTestSuite(void);
47static void MDFilter(int);
48static void usage(void);
49
50/* Main driver.
51
52Arguments (may be any combination):
53  -sstring - digests string
54  -t       - runs time trial
55  -x       - runs test script
56  filename - digests file
57  (none)   - digests standard input
58 */
59int
60main(int argc, char *argv[])
61{
62	int     ch;
63	char   *p;
64	char	buf[33];
65
66	while ((ch = getopt(argc, argv, "pqrs:tx")) != -1)
67		switch (ch) {
68		case 'p':
69			MDFilter(1);
70			break;
71		case 'q':
72			qflag = 1;
73			break;
74		case 'r':
75			rflag = 1;
76			break;
77		case 's':
78			sflag = 1;
79			MDString(optarg);
80			break;
81		case 't':
82			MDTimeTrial();
83			break;
84		case 'x':
85			MDTestSuite();
86			break;
87		default:
88			usage();
89		}
90	argc -= optind;
91	argv += optind;
92
93	if (*argv) {
94		do {
95			p = MD5File(*argv, buf);
96			if (!p)
97				warn("%s", *argv);
98			else
99				if (qflag)
100					printf("%s\n", p);
101				else if (rflag)
102					printf("%s %s\n", p, *argv);
103				else
104					printf("MD5 (%s) = %s\n", *argv, p);
105		} while (*++argv);
106	} else if (!sflag && (optind == 1 || qflag || rflag))
107		MDFilter(0);
108
109	return (0);
110}
111/*
112 * Digests a string and prints the result.
113 */
114static void
115MDString(const char *string)
116{
117	size_t len = strlen(string);
118	char buf[33];
119
120	if (qflag)
121		printf("%s\n", MD5Data(string, len, buf));
122	else if (rflag)
123		printf("%s \"%s\"\n", MD5Data(string, len, buf), string);
124	else
125		printf("MD5 (\"%s\") = %s\n", string, MD5Data(string, len, buf));
126}
127/*
128 * Measures the time to digest TEST_BLOCK_COUNT TEST_BLOCK_LEN-byte blocks.
129 */
130static void
131MDTimeTrial(void)
132{
133	MD5_CTX context;
134	time_t  endTime, startTime;
135	unsigned char block[TEST_BLOCK_LEN];
136	unsigned int i;
137	char   *p, buf[33];
138
139	printf
140	    ("MD5 time trial. Digesting %d %d-byte blocks ...",
141	    TEST_BLOCK_COUNT, TEST_BLOCK_LEN);
142	fflush(stdout);
143
144	/* Initialize block */
145	for (i = 0; i < TEST_BLOCK_LEN; i++)
146		block[i] = (unsigned char) (i & 0xff);
147
148	/* Start timer */
149	time(&startTime);
150
151	/* Digest blocks */
152	MD5Init(&context);
153	for (i = 0; i < TEST_BLOCK_COUNT; i++)
154		MD5Update(&context, block, TEST_BLOCK_LEN);
155	p = MD5End(&context,buf);
156
157	/* Stop timer */
158	time(&endTime);
159
160	printf(" done\n");
161	printf("Digest = %s", p);
162	printf("\nTime = %ld seconds\n", (long) (endTime - startTime));
163	/* Be careful that endTime-startTime is not zero. (Bug fix from Ric
164	 * Anderson, ric@Artisoft.COM.) */
165	printf
166	    ("Speed = %ld bytes/second\n",
167	    (long) TEST_BLOCK_LEN * (long) TEST_BLOCK_COUNT / ((endTime - startTime) != 0 ? (long)(endTime - startTime) : 1));
168}
169/*
170 * Digests a reference suite of strings and prints the results.
171 */
172static void
173MDTestSuite(void)
174{
175
176	printf("MD5 test suite:\n");
177
178	MDString("");
179	MDString("a");
180	MDString("abc");
181	MDString("message digest");
182	MDString("abcdefghijklmnopqrstuvwxyz");
183	MDString
184	    ("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789");
185	MDString
186	    ("1234567890123456789012345678901234567890\
1871234567890123456789012345678901234567890");
188}
189
190/*
191 * Digests the standard input and prints the result.
192 */
193static void
194MDFilter(int tee)
195{
196	MD5_CTX context;
197	unsigned int len;
198	unsigned char buffer[BUFSIZ];
199	char buf[33];
200
201	MD5Init(&context);
202	while ((len = fread(buffer, 1, BUFSIZ, stdin))) {
203		if (tee && len != fwrite(buffer, 1, len, stdout))
204			err(1, "stdout");
205		MD5Update(&context, buffer, len);
206	}
207	printf("%s\n", MD5End(&context,buf));
208}
209
210static void
211usage(void)
212{
213
214	fprintf(stderr, "usage: md5 [-pqrtx] [-s string] [files ...]\n");
215	exit(1);
216}
217