1 files changed, 204 insertions, 0 deletions

diff --git a/src/usr.bin/openssl/gendh.c b/src/usr.bin/openssl/gendh.c
new file mode 100644
index 0000000000..06d62c1b0d
--- /dev/null
+++ b/src/usr.bin/openssl/gendh.c
@@ -0,0 +1,204 @@
+/* $OpenBSD: gendh.c,v 1.1 2014/08/26 17:47:24 jsing Exp $ */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * 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 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 acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS 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 AUTHOR OR 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.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <openssl/opensslconf.h>
+
+/* Until the key-gen callbacks are modified to use newer prototypes, we allow
+ * deprecated functions for openssl-internal code */
+#ifdef OPENSSL_NO_DEPRECATED
+#undef OPENSSL_NO_DEPRECATED
+#endif
+
+#ifndef OPENSSL_NO_DH
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <stdio.h>
+#include <string.h>
+
+#include "apps.h"
+
+#include <openssl/bio.h>
+#include <openssl/bn.h>
+#include <openssl/dh.h>
+#include <openssl/err.h>
+#include <openssl/pem.h>
+#include <openssl/rand.h>
+#include <openssl/x509.h>
+
+#define DEFBITS 512
+
+static int dh_cb(int p, int n, BN_GENCB * cb);
+
+int gendh_main(int, char **);
+
+int
+gendh_main(int argc, char **argv)
+{
+        BN_GENCB cb;
+        DH *dh = NULL;
+        int ret = 1, num = DEFBITS;
+        int g = 2;
+        char *outfile = NULL;
+#ifndef OPENSSL_NO_ENGINE
+        char *engine = NULL;
+#endif
+        BIO *out = NULL;
+
+        BN_GENCB_set(&cb, dh_cb, bio_err);
+
+        argv++;
+        argc--;
+        for (;;) {
+                if (argc <= 0)
+                        break;
+                if (strcmp(*argv, "-out") == 0) {
+                        if (--argc < 1)
+                                goto bad;
+                        outfile = *(++argv);
+                } else if (strcmp(*argv, "-2") == 0)
+                        g = 2;
+                /*
+                 * else if (strcmp(*argv,"-3") == 0) g=3;
+                 */
+                else if (strcmp(*argv, "-5") == 0)
+                        g = 5;
+#ifndef OPENSSL_NO_ENGINE
+                else if (strcmp(*argv, "-engine") == 0) {
+                        if (--argc < 1)
+                                goto bad;
+                        engine = *(++argv);
+                }
+#endif
+                else
+                        break;
+                argv++;
+                argc--;
+        }
+        if ((argc >= 1) && ((sscanf(*argv, "%d", &num) == 0) || (num < 0))) {
+bad:
+                BIO_printf(bio_err, "usage: gendh [args] [numbits]\n");
+                BIO_printf(bio_err, " -out file - output the key to 'file\n");
+                BIO_printf(bio_err, " -2        - use 2 as the generator value\n");
+                /*
+                 * BIO_printf(bio_err," -3        - use 3 as the generator
+                 * value\n");
+                 */
+                BIO_printf(bio_err, " -5        - use 5 as the generator value\n");
+#ifndef OPENSSL_NO_ENGINE
+                BIO_printf(bio_err, " -engine e - use engine e, possibly a hardware device.\n");
+#endif
+                goto end;
+        }
+#ifndef OPENSSL_NO_ENGINE
+        setup_engine(bio_err, engine, 0);
+#endif
+
+        out = BIO_new(BIO_s_file());
+        if (out == NULL) {
+                ERR_print_errors(bio_err);
+                goto end;
+        }
+        if (outfile == NULL) {
+                BIO_set_fp(out, stdout, BIO_NOCLOSE);
+        } else {
+                if (BIO_write_filename(out, outfile) <= 0) {
+                        perror(outfile);
+                        goto end;
+                }
+        }
+
+        BIO_printf(bio_err, "Generating DH parameters, %d bit long safe prime, generator %d\n", num, g);
+        BIO_printf(bio_err, "This is going to take a long time\n");
+
+        if (((dh = DH_new()) == NULL) || !DH_generate_parameters_ex(dh, num, g, &cb))
+                goto end;
+
+        if (!PEM_write_bio_DHparams(out, dh))
+                goto end;
+        ret = 0;
+end:
+        if (ret != 0)
+                ERR_print_errors(bio_err);
+        if (out != NULL)
+                BIO_free_all(out);
+        if (dh != NULL)
+                DH_free(dh);
+
+        return (ret);
+}
+
+static int
+dh_cb(int p, int n, BN_GENCB * cb)
+{
+        char c = '*';
+
+        if (p == 0)
+                c = '.';
+        if (p == 1)
+                c = '+';
+        if (p == 2)
+                c = '*';
+        if (p == 3)
+                c = '\n';
+        BIO_write(cb->arg, &c, 1);
+        (void) BIO_flush(cb->arg);
+        return 1;
+}
+#endif