228 lines
6.9 KiB
C
228 lines
6.9 KiB
C
/* apps/rand.c */
|
|
/* ====================================================================
|
|
* Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* 3. All advertising materials mentioning features or use of this
|
|
* software must display the following acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
|
|
*
|
|
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
|
|
* endorse or promote products derived from this software without
|
|
* prior written permission. For written permission, please contact
|
|
* openssl-core@openssl.org.
|
|
*
|
|
* 5. Products derived from this software may not be called "OpenSSL"
|
|
* nor may "OpenSSL" appear in their names without prior written
|
|
* permission of the OpenSSL Project.
|
|
*
|
|
* 6. Redistributions of any form whatsoever must retain the following
|
|
* acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
|
|
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
|
|
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
|
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
* ====================================================================
|
|
*
|
|
* This product includes cryptographic software written by Eric Young
|
|
* (eay@cryptsoft.com). This product includes software written by Tim
|
|
* Hudson (tjh@cryptsoft.com).
|
|
*
|
|
*/
|
|
|
|
#include "apps.h"
|
|
|
|
#include <ctype.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include <openssl/bio.h>
|
|
#include <openssl/err.h>
|
|
#include <openssl/rand.h>
|
|
|
|
#undef PROG
|
|
#define PROG rand_main
|
|
|
|
/*-
|
|
* -out file - write to file
|
|
* -rand file:file - PRNG seed files
|
|
* -base64 - base64 encode output
|
|
* -hex - hex encode output
|
|
* num - write 'num' bytes
|
|
*/
|
|
|
|
int MAIN(int, char **);
|
|
|
|
int MAIN(int argc, char **argv)
|
|
{
|
|
int i, r, ret = 1;
|
|
int badopt;
|
|
char *outfile = NULL;
|
|
char *inrand = NULL;
|
|
int base64 = 0;
|
|
int hex = 0;
|
|
BIO *out = NULL;
|
|
int num = -1;
|
|
ENGINE *e = NULL;
|
|
char *engine = NULL;
|
|
|
|
apps_startup();
|
|
|
|
if (bio_err == NULL)
|
|
if ((bio_err = BIO_new(BIO_s_file())) != NULL)
|
|
BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
|
|
|
|
if (!load_config(bio_err, NULL))
|
|
goto err;
|
|
|
|
badopt = 0;
|
|
i = 0;
|
|
while (!badopt && argv[++i] != NULL) {
|
|
if (strcmp(argv[i], "-out") == 0) {
|
|
if ((argv[i + 1] != NULL) && (outfile == NULL))
|
|
outfile = argv[++i];
|
|
else
|
|
badopt = 1;
|
|
}
|
|
#ifndef OPENSSL_NO_ENGINE
|
|
else if (strcmp(argv[i], "-engine") == 0) {
|
|
if ((argv[i + 1] != NULL) && (engine == NULL))
|
|
engine = argv[++i];
|
|
else
|
|
badopt = 1;
|
|
}
|
|
#endif
|
|
else if (strcmp(argv[i], "-rand") == 0) {
|
|
if ((argv[i + 1] != NULL) && (inrand == NULL))
|
|
inrand = argv[++i];
|
|
else
|
|
badopt = 1;
|
|
} else if (strcmp(argv[i], "-base64") == 0) {
|
|
if (!base64)
|
|
base64 = 1;
|
|
else
|
|
badopt = 1;
|
|
} else if (strcmp(argv[i], "-hex") == 0) {
|
|
if (!hex)
|
|
hex = 1;
|
|
else
|
|
badopt = 1;
|
|
} else if (isdigit((unsigned char)argv[i][0])) {
|
|
if (num < 0) {
|
|
r = sscanf(argv[i], "%d", &num);
|
|
if (r == 0 || num < 0)
|
|
badopt = 1;
|
|
} else
|
|
badopt = 1;
|
|
} else
|
|
badopt = 1;
|
|
}
|
|
|
|
if (hex && base64)
|
|
badopt = 1;
|
|
|
|
if (num < 0)
|
|
badopt = 1;
|
|
|
|
if (badopt) {
|
|
BIO_printf(bio_err, "Usage: rand [options] num\n");
|
|
BIO_printf(bio_err, "where options are\n");
|
|
BIO_printf(bio_err, "-out file - write to file\n");
|
|
#ifndef OPENSSL_NO_ENGINE
|
|
BIO_printf(bio_err,
|
|
"-engine e - use engine e, possibly a hardware device.\n");
|
|
#endif
|
|
BIO_printf(bio_err, "-rand file%cfile%c... - seed PRNG from files\n",
|
|
LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
|
|
BIO_printf(bio_err, "-base64 - base64 encode output\n");
|
|
BIO_printf(bio_err, "-hex - hex encode output\n");
|
|
goto err;
|
|
}
|
|
e = setup_engine(bio_err, engine, 0);
|
|
|
|
app_RAND_load_file(NULL, bio_err, (inrand != NULL));
|
|
if (inrand != NULL)
|
|
BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
|
|
app_RAND_load_files(inrand));
|
|
|
|
out = BIO_new(BIO_s_file());
|
|
if (out == NULL)
|
|
goto err;
|
|
if (outfile != NULL)
|
|
r = BIO_write_filename(out, outfile);
|
|
else {
|
|
r = BIO_set_fp(out, stdout, BIO_NOCLOSE | BIO_FP_TEXT);
|
|
#ifdef OPENSSL_SYS_VMS
|
|
{
|
|
BIO *tmpbio = BIO_new(BIO_f_linebuffer());
|
|
out = BIO_push(tmpbio, out);
|
|
}
|
|
#endif
|
|
}
|
|
if (r <= 0)
|
|
goto err;
|
|
|
|
if (base64) {
|
|
BIO *b64 = BIO_new(BIO_f_base64());
|
|
if (b64 == NULL)
|
|
goto err;
|
|
out = BIO_push(b64, out);
|
|
}
|
|
|
|
while (num > 0) {
|
|
unsigned char buf[4096];
|
|
int chunk;
|
|
|
|
chunk = num;
|
|
if (chunk > (int)sizeof(buf))
|
|
chunk = sizeof(buf);
|
|
r = RAND_bytes(buf, chunk);
|
|
if (r <= 0)
|
|
goto err;
|
|
if (!hex)
|
|
BIO_write(out, buf, chunk);
|
|
else {
|
|
for (i = 0; i < chunk; i++)
|
|
BIO_printf(out, "%02x", buf[i]);
|
|
}
|
|
num -= chunk;
|
|
}
|
|
if (hex)
|
|
BIO_puts(out, "\n");
|
|
(void)BIO_flush(out);
|
|
|
|
app_RAND_write_file(NULL, bio_err);
|
|
ret = 0;
|
|
|
|
err:
|
|
ERR_print_errors(bio_err);
|
|
release_engine(e);
|
|
if (out)
|
|
BIO_free_all(out);
|
|
apps_shutdown();
|
|
OPENSSL_EXIT(ret);
|
|
}
|