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/*
* SPDX-License-Identifier: ISC
*
* Copyright (c) 2013-2015 Todd C. Miller <Todd.Miller@sudo.ws>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sudo_compat.h>
#include <sudo_fatal.h>
#include <sudo_queue.h>
#include <sudo_digest.h>
#include <sudo_util.h>
#include <parse.h>
sudo_dso_public int main(int argc, char *argv[]);
#define NUM_TESTS 8
static const char *test_strings[NUM_TESTS] = {
"",
"a",
"abc",
"message digest",
"abcdefghijklmnopqrstuvwxyz",
"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq",
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789",
"12345678901234567890123456789012345678901234567890123456789"
"012345678901234567890",
};
static unsigned char *
check_digest(unsigned int digest_type, const char *buf, size_t buflen,
size_t *digest_len)
{
char tfile[] = "digest.XXXXXX";
unsigned char *digest = NULL;
int tfd;
/* Write test data to temporary file. */
tfd = mkstemp(tfile);
if (tfd == -1) {
sudo_warn_nodebug("mkstemp");
goto done;
}
if ((size_t)write(tfd, buf, buflen) != buflen) {
sudo_warn_nodebug("write");
goto done;
}
lseek(tfd, 0, SEEK_SET);
/* Get file digest. */
digest = sudo_filedigest(tfd, tfile, digest_type, digest_len);
if (digest == NULL) {
/* Warning (if any) printed by sudo_filedigest() */
goto done;
}
done:
if (tfd != -1) {
close(tfd);
unlink(tfile);
}
return digest;
}
int
main(int argc, char *argv[])
{
static const char hex[] = "0123456789abcdef";
char buf[1000 * 1000];
unsigned char *digest;
unsigned int i, j;
size_t digest_len;
int ch;
unsigned int digest_type;
initprogname(argc > 0 ? argv[0] : "check_digest");
while ((ch = getopt(argc, argv, "v")) != -1) {
switch (ch) {
case 'v':
/* ignored */
break;
default:
fprintf(stderr, "usage: %s [-v]\n", getprogname());
return EXIT_FAILURE;
}
}
argc -= optind;
argv += optind;
for (digest_type = 0; digest_type < SUDO_DIGEST_INVALID; digest_type++) {
for (i = 0; i < NUM_TESTS; i++) {
digest = check_digest(digest_type, test_strings[i],
strlen(test_strings[i]), &digest_len);
if (digest != NULL) {
printf("%s (\"%s\") = ", digest_type_to_name(digest_type),
test_strings[i]);
for (j = 0; j < digest_len; j++) {
putchar(hex[digest[j] >> 4]);
putchar(hex[digest[j] & 0x0f]);
}
putchar('\n');
free(digest);
}
}
/* Simulate a string of a million 'a' characters. */
memset(buf, 'a', sizeof(buf));
digest = check_digest(digest_type, buf, sizeof(buf), &digest_len);
if (digest != NULL) {
printf("%s (one million 'a' characters) = ",
digest_type_to_name(digest_type));
for (j = 0; j < digest_len; j++) {
putchar(hex[digest[j] >> 4]);
putchar(hex[digest[j] & 0x0f]);
}
putchar('\n');
free(digest);
}
}
return 0;
}
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