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-rw-r--r--openssl/apps/rand.c248
1 files changed, 248 insertions, 0 deletions
diff --git a/openssl/apps/rand.c b/openssl/apps/rand.c
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+++ b/openssl/apps/rand.c
@@ -0,0 +1,248 @@
+/* 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)
+ {
+#ifndef OPENSSL_NO_ENGINE
+ ENGINE *e = NULL;
+#endif
+ 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
+ e = 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);
+ }
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