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+/*
+ Copyright (C) 2002 Aladdin Enterprises. All rights reserved.
+
+ This software is provided 'as-is', without any express or implied
+ warranty. In no event will the authors be held liable for any damages
+ arising from the use of this software.
+
+ Permission is granted to anyone to use this software for any purpose,
+ including commercial applications, and to alter it and redistribute it
+ freely, subject to the following restrictions:
+
+ 1. The origin of this software must not be misrepresented; you must not
+ claim that you wrote the original software. If you use this software
+ in a product, an acknowledgment in the product documentation would be
+ appreciated but is not required.
+ 2. Altered source versions must be plainly marked as such, and must not be
+ misrepresented as being the original software.
+ 3. This notice may not be removed or altered from any source distribution.
+
+ L. Peter Deutsch
+ ghost@aladdin.com
+
+ */
+/* $Id: md5main.c,v 1.1 2002/04/13 19:20:28 lpd Exp $ */
+/*
+ Independent implementation of MD5 (RFC 1321).
+
+ This code implements the MD5 Algorithm defined in RFC 1321, whose
+ text is available at
+ http://www.ietf.org/rfc/rfc1321.txt
+ The code is derived from the text of the RFC, including the test suite
+ (section A.5) but excluding the rest of Appendix A. It does not include
+ any code or documentation that is identified in the RFC as being
+ copyrighted.
+
+ The original and principal author of md5.c is L. Peter Deutsch
+ <ghost@aladdin.com>. Other authors are noted in the change history
+ that follows (in reverse chronological order):
+
+ 2002-04-13 lpd Splits off main program into a separate file, md5main.c.
+ */
+
+#include "md5.h"
+#include <math.h>
+#include <stdio.h>
+#include <string.h>
+
+/*
+ * This file builds an executable that performs various functions related
+ * to the MD5 library. Typical compilation:
+ * gcc -o md5main -lm md5main.c md5.c
+ */
+static const char *const usage = "\
+Usage:\n\
+ md5main --test # run the self-test (A.5 of RFC 1321)\n\
+ md5main --t-values # print the T values for the library\n\
+ md5main --version # print the version of the package\n\
+";
+static const char *const version = "2002-04-13";
+
+/* Run the self-test. */
+static int
+do_test(void)
+{
+ static const char *const test[7*2] = {
+ "", "d41d8cd98f00b204e9800998ecf8427e",
+ "a", "0cc175b9c0f1b6a831c399e269772661",
+ "abc", "900150983cd24fb0d6963f7d28e17f72",
+ "message digest", "f96b697d7cb7938d525a2f31aaf161d0",
+ "abcdefghijklmnopqrstuvwxyz", "c3fcd3d76192e4007dfb496cca67e13b",
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
+ "d174ab98d277d9f5a5611c2c9f419d9f",
+ "12345678901234567890123456789012345678901234567890123456789012345678901234567890", "57edf4a22be3c955ac49da2e2107b67a"
+ };
+ int i;
+ int status = 0;
+
+ for (i = 0; i < 7*2; i += 2) {
+ md5_state_t state;
+ md5_byte_t digest[16];
+ char hex_output[16*2 + 1];
+ int di;
+
+ md5_init(&state);
+ md5_append(&state, (const md5_byte_t *)test[i], strlen(test[i]));
+ md5_finish(&state, digest);
+ for (di = 0; di < 16; ++di)
+ sprintf(hex_output + di * 2, "%02x", digest[di]);
+ if (strcmp(hex_output, test[i + 1])) {
+ printf("MD5 (\"%s\") = ", test[i]);
+ puts(hex_output);
+ printf("**** ERROR, should be: %s\n", test[i + 1]);
+ status = 1;
+ }
+ }
+ if (status == 0)
+ puts("md5 self-test completed successfully.");
+ return status;
+}
+
+/* Print the T values. */
+static int
+do_t_values(void)
+{
+ int i;
+ for (i = 1; i <= 64; ++i) {
+ unsigned long v = (unsigned long)(4294967296.0 * fabs(sin((double)i)));
+
+ /*
+ * The following nonsense is only to avoid compiler warnings about
+ * "integer constant is unsigned in ANSI C, signed with -traditional".
+ */
+ if (v >> 31) {
+ printf("#define T%d /* 0x%08lx */ (T_MASK ^ 0x%08lx)\n", i,
+ v, (unsigned long)(unsigned int)(~v));
+ } else {
+ printf("#define T%d 0x%08lx\n", i, v);
+ }
+ }
+ return 0;
+}
+
+/* Main program */
+int
+main(int argc, char *argv[])
+{
+ if (argc == 2) {
+ if (!strcmp(argv[1], "--test"))
+ return do_test();
+ if (!strcmp(argv[1], "--t-values"))
+ return do_t_values();
+ if (!strcmp(argv[1], "--version")) {
+ puts(version);
+ return 0;
+ }
+ }
+ puts(usage);
+ return 0;
+}