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/* apps/rand.c */ |
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/* ==================================================================== |
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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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|
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#include "apps.h" |
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|
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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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|
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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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|
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#undef PROG |
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#define PROG rand_main |
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|
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/*- |
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* -out file - write to file |
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* -rand file:file - PRNG seed files |
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* -base64 - base64 encode output |
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* -hex - hex encode output |
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* num - write 'num' bytes |
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*/ |
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|
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int MAIN(int, char **); |
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|
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int MAIN(int argc, char **argv) |
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{ |
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int i, r, ret = 1; |
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int badopt; |
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char *outfile = NULL; |
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char *inrand = NULL; |
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int base64 = 0; |
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int hex = 0; |
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BIO *out = NULL; |
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int num = -1; |
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ENGINE *e = NULL; |
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char *engine = NULL; |
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|
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apps_startup(); |
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|
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if (bio_err == NULL) |
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if ((bio_err = BIO_new(BIO_s_file())) != NULL) |
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BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); |
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|
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if (!load_config(bio_err, NULL)) |
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goto err; |
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|
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badopt = 0; |
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i = 0; |
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while (!badopt && argv[++i] != NULL) { |
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if (strcmp(argv[i], "-out") == 0) { |
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if ((argv[i + 1] != NULL) && (outfile == NULL)) |
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outfile = argv[++i]; |
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else |
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badopt = 1; |
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} |
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#ifndef OPENSSL_NO_ENGINE |
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else if (strcmp(argv[i], "-engine") == 0) { |
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if ((argv[i + 1] != NULL) && (engine == NULL)) |
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engine = argv[++i]; |
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else |
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badopt = 1; |
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} |
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#endif |
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else if (strcmp(argv[i], "-rand") == 0) { |
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if ((argv[i + 1] != NULL) && (inrand == NULL)) |
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inrand = argv[++i]; |
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else |
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badopt = 1; |
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} else if (strcmp(argv[i], "-base64") == 0) { |
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if (!base64) |
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base64 = 1; |
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else |
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badopt = 1; |
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} else if (strcmp(argv[i], "-hex") == 0) { |
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if (!hex) |
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hex = 1; |
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else |
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badopt = 1; |
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} else if (isdigit((unsigned char)argv[i][0])) { |
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if (num < 0) { |
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r = sscanf(argv[i], "%d", &num); |
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if (r == 0 || num < 0) |
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badopt = 1; |
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} else |
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badopt = 1; |
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} else |
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badopt = 1; |
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} |
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|
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if (hex && base64) |
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badopt = 1; |
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|
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if (num < 0) |
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badopt = 1; |
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|
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if (badopt) { |
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BIO_printf(bio_err, "Usage: rand [options] num\n"); |
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BIO_printf(bio_err, "where options are\n"); |
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BIO_printf(bio_err, "-out file - write to file\n"); |
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#ifndef OPENSSL_NO_ENGINE |
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BIO_printf(bio_err, |
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"-engine e - use engine e, possibly a hardware device.\n"); |
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#endif |
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BIO_printf(bio_err, "-rand file%cfile%c... - seed PRNG from files\n", |
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LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); |
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BIO_printf(bio_err, "-base64 - base64 encode output\n"); |
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BIO_printf(bio_err, "-hex - hex encode output\n"); |
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goto err; |
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} |
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e = setup_engine(bio_err, engine, 0); |
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|
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app_RAND_load_file(NULL, bio_err, (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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|
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out = BIO_new(BIO_s_file()); |
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if (out == NULL) |
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goto err; |
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if (outfile != NULL) |
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r = BIO_write_filename(out, outfile); |
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else { |
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r = BIO_set_fp(out, stdout, BIO_NOCLOSE | BIO_FP_TEXT); |
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#ifdef OPENSSL_SYS_VMS |
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{ |
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BIO *tmpbio = BIO_new(BIO_f_linebuffer()); |
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out = BIO_push(tmpbio, out); |
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} |
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#endif |
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} |
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if (r <= 0) |
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goto err; |
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|
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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 err; |
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out = BIO_push(b64, out); |
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} |
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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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|
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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 err; |
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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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|
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app_RAND_write_file(NULL, bio_err); |
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ret = 0; |
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|
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err: |
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ERR_print_errors(bio_err); |
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release_engine(e); |
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if (out) |
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BIO_free_all(out); |
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apps_shutdown(); |
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OPENSSL_EXIT(ret); |
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} |
