-/* 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 <openssl/bio.h>
#include <openssl/err.h>
#include <openssl/rand.h>
-#include <openssl/engine.h>
-
-#undef PROG
-#define PROG rand_main
-
-/* -out file - write to file
- * -rand file:file - PRNG seed files
- * -base64 - encode output
- * num - write 'num' bytes
- */
-int MAIN(int, char **);
-
-int MAIN(int argc, char **argv)
- {
- ENGINE *e = NULL;
- int i, r, ret = 1;
- int badopt;
- char *outfile = NULL;
- char *inrand = NULL;
- int base64 = 0;
- BIO *out = NULL;
- int num = -1;
- 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);
-
- 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;
- }
- else if (strcmp(argv[i], "-engine") == 0)
- {
- if ((argv[i+1] != NULL) && (engine == NULL))
- engine = argv[++i];
- else
- badopt = 1;
- }
- 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 (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 (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");
- BIO_printf(bio_err," -engine e - use engine e, possibly a hardware device.\n");
- BIO_printf(bio_err, "-rand file%cfile%c... - seed PRNG from files\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
- BIO_printf(bio_err, "-base64 - encode output\n");
- goto err;
- }
-
- if (engine != NULL)
- {
- if((e = ENGINE_by_id(engine)) == NULL)
- {
- BIO_printf(bio_err,"invalid engine \"%s\"\n",
- engine);
- goto err;
- }
- if(!ENGINE_set_default(e, ENGINE_METHOD_ALL))
- {
- BIO_printf(bio_err,"can't use that engine\n");
- goto err;
- }
- BIO_printf(bio_err,"engine \"%s\" set.\n", engine);
- /* Free our "structural" reference. */
- ENGINE_free(e);
- }
-
- 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 VMS
- {
- BIO *tmpbio = BIO_new(BIO_f_linebuffer());
- out = BIO_push(tmpbio, out);
- }
+typedef enum OPTION_choice {
+ OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
+ OPT_OUT, OPT_ENGINE, OPT_RAND, OPT_BASE64, OPT_HEX
+} OPTION_CHOICE;
+
+OPTIONS rand_options[] = {
+ {OPT_HELP_STR, 1, '-', "Usage: %s [flags] num\n"},
+ {OPT_HELP_STR, 1, '-', "Valid options are:\n"},
+ {"help", OPT_HELP, '-', "Display this summary"},
+ {"out", OPT_OUT, '>', "Output file"},
+ {"rand", OPT_RAND, 's',
+ "Load the file(s) into the random number generator"},
+ {"base64", OPT_BASE64, '-', "Base64 encode output"},
+ {"hex", OPT_HEX, '-', "Hex encode output"},
+#ifndef OPENSSL_NO_ENGINE
+ {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
+#endif
+ {NULL}
+};
+
+int rand_main(int argc, char **argv)
+{
+ BIO *out = NULL;
+ char *engine = NULL, *inrand = NULL, *outfile = NULL, *prog;
+ OPTION_CHOICE o;
+ int base64 = 0, hex = 0, i, num = -1, r, ret = 1;
+
+ prog = opt_init(argc, argv, rand_options);
+ while ((o = opt_next()) != OPT_EOF) {
+ switch (o) {
+ case OPT_EOF:
+ case OPT_ERR:
+ opthelp:
+ BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
+ goto end;
+ case OPT_HELP:
+ opt_help(rand_options);
+ ret = 0;
+ goto end;
+ case OPT_OUT:
+ outfile = opt_arg();
+ break;
+ case OPT_ENGINE:
+ engine = opt_arg();
+ break;
+ case OPT_RAND:
+ inrand = opt_arg();
+ break;
+ case OPT_BASE64:
+ base64 = 1;
+ break;
+ case OPT_HEX:
+ hex = 1;
+ break;
+ }
+ }
+ argc = opt_num_rest();
+ argv = opt_rest();
+
+ if (argc != 1 || (hex && base64))
+ goto opthelp;
+ if (sscanf(argv[0], "%d", &num) != 1 || num < 0)
+ goto opthelp;
+
+#ifndef OPENSSL_NO_ENGINE
+ setup_engine(engine, 0);
#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 > sizeof buf)
- chunk = sizeof buf;
- r = RAND_bytes(buf, chunk);
- if (r <= 0)
- goto err;
- BIO_write(out, buf, chunk);
- num -= chunk;
- }
- BIO_flush(out);
-
- app_RAND_write_file(NULL, bio_err);
- ret = 0;
-
-err:
- ERR_print_errors(bio_err);
- if (out)
- BIO_free_all(out);
- EXIT(ret);
- }
+
+ app_RAND_load_file(NULL, (inrand != NULL));
+ if (inrand != NULL)
+ BIO_printf(bio_err, "%ld semi-random bytes loaded\n",
+ app_RAND_load_files(inrand));
+
+ out = bio_open_default(outfile, "w");
+ if (out == NULL)
+ goto end;
+
+ if (base64) {
+ BIO *b64 = BIO_new(BIO_f_base64());
+ if (b64 == NULL)
+ goto end;
+ 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 end;
+ 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);
+ ret = 0;
+
+ end:
+ BIO_free_all(out);
+ return (ret);
+}
projects / openssl.git / blobdiff