333b070ec0
Make setup_engine be a dummy if NO_ENGINE is enabled. The option is not enabled if NO_ENGINE is enabled, so the one "wasted" variable just sits there. Removes some variables and code. Reviewed-by: Richard Levitte <levitte@openssl.org>
173 lines
5.5 KiB
C
173 lines
5.5 KiB
C
/* ====================================================================
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* Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include "apps.h"
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#include <ctype.h>
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#include <stdio.h>
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#include <string.h>
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#include <openssl/bio.h>
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#include <openssl/err.h>
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#include <openssl/rand.h>
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typedef enum OPTION_choice {
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OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
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OPT_OUT, OPT_ENGINE, OPT_RAND, OPT_BASE64, OPT_HEX
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} OPTION_CHOICE;
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OPTIONS rand_options[] = {
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{OPT_HELP_STR, 1, '-', "Usage: %s [flags] num\n"},
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{OPT_HELP_STR, 1, '-', "Valid options are:\n"},
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{"help", OPT_HELP, '-', "Display this summary"},
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{"out", OPT_OUT, '>', "Output file"},
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{"rand", OPT_RAND, 's',
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"Load the file(s) into the random number generator"},
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{"base64", OPT_BASE64, '-', "Base64 encode output"},
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{"hex", OPT_HEX, '-', "Hex encode output"},
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#ifndef OPENSSL_NO_ENGINE
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{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
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#endif
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{NULL}
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};
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int rand_main(int argc, char **argv)
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{
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BIO *out = NULL;
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char *inrand = NULL, *outfile = NULL, *prog;
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OPTION_CHOICE o;
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int base64 = 0, hex = 0, i, num = -1, r, ret = 1;
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prog = opt_init(argc, argv, rand_options);
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while ((o = opt_next()) != OPT_EOF) {
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switch (o) {
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case OPT_EOF:
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case OPT_ERR:
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opthelp:
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BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
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goto end;
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case OPT_HELP:
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opt_help(rand_options);
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ret = 0;
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goto end;
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case OPT_OUT:
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outfile = opt_arg();
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break;
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case OPT_ENGINE:
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(void)setup_engine(opt_arg(), 0);
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break;
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case OPT_RAND:
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inrand = opt_arg();
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break;
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case OPT_BASE64:
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base64 = 1;
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break;
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case OPT_HEX:
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hex = 1;
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break;
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}
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}
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argc = opt_num_rest();
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argv = opt_rest();
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if (argc != 1 || (hex && base64))
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goto opthelp;
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if (sscanf(argv[0], "%d", &num) != 1 || num < 0)
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goto opthelp;
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app_RAND_load_file(NULL, (inrand != NULL));
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if (inrand != NULL)
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BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
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app_RAND_load_files(inrand));
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out = bio_open_default(outfile, "w");
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if (out == NULL)
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goto end;
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if (base64) {
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BIO *b64 = BIO_new(BIO_f_base64());
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if (b64 == NULL)
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goto end;
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out = BIO_push(b64, out);
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}
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while (num > 0) {
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unsigned char buf[4096];
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int chunk;
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chunk = num;
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if (chunk > (int)sizeof(buf))
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chunk = sizeof buf;
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r = RAND_bytes(buf, chunk);
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if (r <= 0)
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goto end;
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if (!hex)
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BIO_write(out, buf, chunk);
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else {
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for (i = 0; i < chunk; i++)
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BIO_printf(out, "%02x", buf[i]);
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}
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num -= chunk;
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}
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if (hex)
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BIO_puts(out, "\n");
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(void)BIO_flush(out);
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app_RAND_write_file(NULL);
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ret = 0;
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end:
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BIO_free_all(out);
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return (ret);
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}
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