| /* 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; |
| #ifndef OPENSSL_NO_ENGINE |
| char *engine = NULL; |
| #endif |
| |
| 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; |
| } |
| #ifndef OPENSSL_NO_ENGINE |
| setup_engine(bio_err, engine, 0); |
| #endif |
| |
| 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); |
| if (out) |
| BIO_free_all(out); |
| apps_shutdown(); |
| OPENSSL_EXIT(ret); |
| } |
