1/* apps/rand.c */ 2/* ==================================================================== 3 * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved.
| 1/* 2 * Copyright 1998-2016 The OpenSSL Project Authors. All Rights Reserved.
|
4 *
| 3 *
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5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the 15 * distribution. 16 * 17 * 3. All advertising materials mentioning features or use of this 18 * software must display the following acknowledgment: 19 * "This product includes software developed by the OpenSSL Project 20 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 21 * 22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 23 * endorse or promote products derived from this software without 24 * prior written permission. For written permission, please contact 25 * openssl-core@openssl.org. 26 * 27 * 5. Products derived from this software may not be called "OpenSSL" 28 * nor may "OpenSSL" appear in their names without prior written 29 * permission of the OpenSSL Project. 30 * 31 * 6. Redistributions of any form whatsoever must retain the following 32 * acknowledgment: 33 * "This product includes software developed by the OpenSSL Project 34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 35 * 36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 47 * OF THE POSSIBILITY OF SUCH DAMAGE. 48 * ==================================================================== 49 * 50 * This product includes cryptographic software written by Eric Young 51 * (eay@cryptsoft.com). This product includes software written by Tim 52 * Hudson (tjh@cryptsoft.com). 53 *
| 4 * Licensed under the OpenSSL license (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html
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54 */ 55 56#include "apps.h" 57 58#include <ctype.h> 59#include <stdio.h> 60#include <string.h> 61 62#include <openssl/bio.h> 63#include <openssl/err.h> 64#include <openssl/rand.h> 65
| 8 */ 9 10#include "apps.h" 11 12#include <ctype.h> 13#include <stdio.h> 14#include <string.h> 15 16#include <openssl/bio.h> 17#include <openssl/err.h> 18#include <openssl/rand.h> 19
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66#undef PROG 67#define PROG rand_main
| 20typedef enum OPTION_choice { 21 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, 22 OPT_OUT, OPT_ENGINE, OPT_RAND, OPT_BASE64, OPT_HEX 23} OPTION_CHOICE;
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68
| 24
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69/*- 70 * -out file - write to file 71 * -rand file:file - PRNG seed files 72 * -base64 - base64 encode output 73 * -hex - hex encode output 74 * num - write 'num' bytes 75 */
| 25OPTIONS rand_options[] = { 26 {OPT_HELP_STR, 1, '-', "Usage: %s [flags] num\n"}, 27 {OPT_HELP_STR, 1, '-', "Valid options are:\n"}, 28 {"help", OPT_HELP, '-', "Display this summary"}, 29 {"out", OPT_OUT, '>', "Output file"}, 30 {"rand", OPT_RAND, 's', 31 "Load the file(s) into the random number generator"}, 32 {"base64", OPT_BASE64, '-', "Base64 encode output"}, 33 {"hex", OPT_HEX, '-', "Hex encode output"}, 34#ifndef OPENSSL_NO_ENGINE 35 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, 36#endif 37 {NULL} 38};
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76
| 39
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77int MAIN(int, char **); 78 79int MAIN(int argc, char **argv)
| 40int rand_main(int argc, char **argv)
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80{
| 41{
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81 int i, r, ret = 1; 82 int badopt; 83 char *outfile = NULL; 84 char *inrand = NULL; 85 int base64 = 0; 86 int hex = 0; 87 BIO *out = NULL; 88 int num = -1;
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89 ENGINE *e = NULL;
| 42 ENGINE *e = NULL;
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90 char *engine = NULL;
| 43 BIO *out = NULL; 44 char *inrand = NULL, *outfile = NULL, *prog; 45 OPTION_CHOICE o; 46 int format = FORMAT_BINARY, i, num = -1, r, ret = 1;
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91
| 47
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92 apps_startup(); 93 94 if (bio_err == NULL) 95 if ((bio_err = BIO_new(BIO_s_file())) != NULL) 96 BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); 97 98 if (!load_config(bio_err, NULL)) 99 goto err; 100 101 badopt = 0; 102 i = 0; 103 while (!badopt && argv[++i] != NULL) { 104 if (strcmp(argv[i], "-out") == 0) { 105 if ((argv[i + 1] != NULL) && (outfile == NULL)) 106 outfile = argv[++i]; 107 else 108 badopt = 1;
| 48 prog = opt_init(argc, argv, rand_options); 49 while ((o = opt_next()) != OPT_EOF) { 50 switch (o) { 51 case OPT_EOF: 52 case OPT_ERR: 53 opthelp: 54 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); 55 goto end; 56 case OPT_HELP: 57 opt_help(rand_options); 58 ret = 0; 59 goto end; 60 case OPT_OUT: 61 outfile = opt_arg(); 62 break; 63 case OPT_ENGINE: 64 e = setup_engine(opt_arg(), 0); 65 break; 66 case OPT_RAND: 67 inrand = opt_arg(); 68 break; 69 case OPT_BASE64: 70 format = FORMAT_BASE64; 71 break; 72 case OPT_HEX: 73 format = FORMAT_TEXT; 74 break;
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109 }
| 75 }
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110#ifndef OPENSSL_NO_ENGINE 111 else if (strcmp(argv[i], "-engine") == 0) { 112 if ((argv[i + 1] != NULL) && (engine == NULL)) 113 engine = argv[++i]; 114 else 115 badopt = 1; 116 } 117#endif 118 else if (strcmp(argv[i], "-rand") == 0) { 119 if ((argv[i + 1] != NULL) && (inrand == NULL)) 120 inrand = argv[++i]; 121 else 122 badopt = 1; 123 } else if (strcmp(argv[i], "-base64") == 0) { 124 if (!base64) 125 base64 = 1; 126 else 127 badopt = 1; 128 } else if (strcmp(argv[i], "-hex") == 0) { 129 if (!hex) 130 hex = 1; 131 else 132 badopt = 1; 133 } else if (isdigit((unsigned char)argv[i][0])) { 134 if (num < 0) { 135 r = sscanf(argv[i], "%d", &num); 136 if (r == 0 || num < 0) 137 badopt = 1; 138 } else 139 badopt = 1; 140 } else 141 badopt = 1;
| |
142 }
| 76 }
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| 77 argc = opt_num_rest(); 78 argv = opt_rest();
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143
| 79
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144 if (hex && base64) 145 badopt = 1;
| 80 if (argc != 1 || !opt_int(argv[0], &num) || num < 0) 81 goto opthelp;
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146
| 82
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147 if (num < 0) 148 badopt = 1; 149 150 if (badopt) { 151 BIO_printf(bio_err, "Usage: rand [options] num\n"); 152 BIO_printf(bio_err, "where options are\n"); 153 BIO_printf(bio_err, "-out file - write to file\n"); 154#ifndef OPENSSL_NO_ENGINE 155 BIO_printf(bio_err, 156 "-engine e - use engine e, possibly a hardware device.\n"); 157#endif 158 BIO_printf(bio_err, "-rand file%cfile%c... - seed PRNG from files\n", 159 LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR); 160 BIO_printf(bio_err, "-base64 - base64 encode output\n"); 161 BIO_printf(bio_err, "-hex - hex encode output\n"); 162 goto err; 163 } 164 e = setup_engine(bio_err, engine, 0); 165 166 app_RAND_load_file(NULL, bio_err, (inrand != NULL));
| 83 app_RAND_load_file(NULL, (inrand != NULL));
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167 if (inrand != NULL) 168 BIO_printf(bio_err, "%ld semi-random bytes loaded\n", 169 app_RAND_load_files(inrand)); 170
| 84 if (inrand != NULL) 85 BIO_printf(bio_err, "%ld semi-random bytes loaded\n", 86 app_RAND_load_files(inrand)); 87
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171 out = BIO_new(BIO_s_file());
| 88 out = bio_open_default(outfile, 'w', format);
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172 if (out == NULL)
| 89 if (out == NULL)
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173 goto err; 174 if (outfile != NULL) 175 r = BIO_write_filename(out, outfile); 176 else { 177 r = BIO_set_fp(out, stdout, BIO_NOCLOSE | BIO_FP_TEXT); 178#ifdef OPENSSL_SYS_VMS 179 { 180 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 181 out = BIO_push(tmpbio, out); 182 } 183#endif 184 } 185 if (r <= 0) 186 goto err;
| 90 goto end;
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187
| 91
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188 if (base64) {
| 92 if (format == FORMAT_BASE64) {
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189 BIO *b64 = BIO_new(BIO_f_base64()); 190 if (b64 == NULL)
| 93 BIO *b64 = BIO_new(BIO_f_base64()); 94 if (b64 == NULL)
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191 goto err;
| 95 goto end;
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192 out = BIO_push(b64, out); 193 } 194 195 while (num > 0) { 196 unsigned char buf[4096]; 197 int chunk; 198 199 chunk = num; 200 if (chunk > (int)sizeof(buf)) 201 chunk = sizeof buf; 202 r = RAND_bytes(buf, chunk); 203 if (r <= 0)
| 96 out = BIO_push(b64, out); 97 } 98 99 while (num > 0) { 100 unsigned char buf[4096]; 101 int chunk; 102 103 chunk = num; 104 if (chunk > (int)sizeof(buf)) 105 chunk = sizeof buf; 106 r = RAND_bytes(buf, chunk); 107 if (r <= 0)
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204 goto err; 205 if (!hex) 206 BIO_write(out, buf, chunk); 207 else {
| 108 goto end; 109 if (format != FORMAT_TEXT) { 110 if (BIO_write(out, buf, chunk) != chunk) 111 goto end; 112 } else {
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208 for (i = 0; i < chunk; i++)
| 113 for (i = 0; i < chunk; i++)
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209 BIO_printf(out, "%02x", buf[i]);
| 114 if (BIO_printf(out, "%02x", buf[i]) != 2) 115 goto end;
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210 } 211 num -= chunk; 212 }
| 116 } 117 num -= chunk; 118 }
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213 if (hex)
| 119 if (format == FORMAT_TEXT)
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214 BIO_puts(out, "\n");
| 120 BIO_puts(out, "\n");
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215 (void)BIO_flush(out);
| 121 if (BIO_flush(out) <= 0 || !app_RAND_write_file(NULL)) 122 goto end;
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216
| 123
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217 app_RAND_write_file(NULL, bio_err);
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218 ret = 0; 219
| 124 ret = 0; 125
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220 err: 221 ERR_print_errors(bio_err);
| 126 end: 127 if (ret != 0) 128 ERR_print_errors(bio_err);
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222 release_engine(e);
| 129 release_engine(e);
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223 if (out) 224 BIO_free_all(out); 225 apps_shutdown(); 226 OPENSSL_EXIT(ret);
| 130 BIO_free_all(out); 131 return (ret);
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227}
| 132}
|