1/* apps/ciphers.c */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to.  The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 *    notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 *    notice, this list of conditions and the following disclaimer in the
30 *    documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 *    must display the following acknowledgement:
33 *    "This product includes cryptographic software written by
34 *     Eric Young (eay@cryptsoft.com)"
35 *    The word 'cryptographic' can be left out if the rouines from the library
36 *    being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 *    the apps directory (application code) you must include an acknowledgement:
39 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed.  i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60#include <stdlib.h>
61#include <string.h>
62#ifdef OPENSSL_NO_STDIO
63#define APPS_WIN16
64#endif
65#include "apps.h"
66#include <openssl/err.h>
67#include <openssl/ssl.h>
68
69#undef PROG
70#define PROG	ciphers_main
71
72static const char *ciphers_usage[]={
73"usage: ciphers args\n",
74" -v          - verbose mode, a textual listing of the SSL/TLS ciphers in OpenSSL\n",
75" -V          - even more verbose\n",
76" -ssl2       - SSL2 mode\n",
77" -ssl3       - SSL3 mode\n",
78" -tls1       - TLS1 mode\n",
79NULL
80};
81
82int MAIN(int, char **);
83
84int MAIN(int argc, char **argv)
85	{
86	int ret=1,i;
87	int verbose=0,Verbose=0;
88	const char **pp;
89	const char *p;
90	int badops=0;
91	SSL_CTX *ctx=NULL;
92	SSL *ssl=NULL;
93	char *ciphers=NULL;
94	const SSL_METHOD *meth=NULL;
95	STACK_OF(SSL_CIPHER) *sk;
96	char buf[512];
97	BIO *STDout=NULL;
98
99#if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
100	meth=SSLv23_server_method();
101#elif !defined(OPENSSL_NO_SSL3)
102	meth=SSLv3_server_method();
103#elif !defined(OPENSSL_NO_SSL2)
104	meth=SSLv2_server_method();
105#endif
106
107	apps_startup();
108
109	if (bio_err == NULL)
110		bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
111	STDout=BIO_new_fp(stdout,BIO_NOCLOSE);
112#ifdef OPENSSL_SYS_VMS
113	{
114	BIO *tmpbio = BIO_new(BIO_f_linebuffer());
115	STDout = BIO_push(tmpbio, STDout);
116	}
117#endif
118	if (!load_config(bio_err, NULL))
119		goto end;
120
121	argc--;
122	argv++;
123	while (argc >= 1)
124		{
125		if (strcmp(*argv,"-v") == 0)
126			verbose=1;
127		else if (strcmp(*argv,"-V") == 0)
128			verbose=Verbose=1;
129#ifndef OPENSSL_NO_SSL2
130		else if (strcmp(*argv,"-ssl2") == 0)
131			meth=SSLv2_client_method();
132#endif
133#ifndef OPENSSL_NO_SSL3
134		else if (strcmp(*argv,"-ssl3") == 0)
135			meth=SSLv3_client_method();
136#endif
137#ifndef OPENSSL_NO_TLS1
138		else if (strcmp(*argv,"-tls1") == 0)
139			meth=TLSv1_client_method();
140#endif
141		else if ((strncmp(*argv,"-h",2) == 0) ||
142			 (strcmp(*argv,"-?") == 0))
143			{
144			badops=1;
145			break;
146			}
147		else
148			{
149			ciphers= *argv;
150			}
151		argc--;
152		argv++;
153		}
154
155	if (badops)
156		{
157		for (pp=ciphers_usage; (*pp != NULL); pp++)
158			BIO_printf(bio_err,"%s",*pp);
159		goto end;
160		}
161
162	OpenSSL_add_ssl_algorithms();
163
164	ctx=SSL_CTX_new(meth);
165	if (ctx == NULL) goto err;
166	if (ciphers != NULL) {
167		if(!SSL_CTX_set_cipher_list(ctx,ciphers)) {
168			BIO_printf(bio_err, "Error in cipher list\n");
169			goto err;
170		}
171	}
172	ssl=SSL_new(ctx);
173	if (ssl == NULL) goto err;
174
175
176	if (!verbose)
177		{
178		for (i=0; ; i++)
179			{
180			p=SSL_get_cipher_list(ssl,i);
181			if (p == NULL) break;
182			if (i != 0) BIO_printf(STDout,":");
183			BIO_printf(STDout,"%s",p);
184			}
185		BIO_printf(STDout,"\n");
186		}
187	else /* verbose */
188		{
189		sk=SSL_get_ciphers(ssl);
190
191		for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
192			{
193			SSL_CIPHER *c;
194
195			c = sk_SSL_CIPHER_value(sk,i);
196
197			if (Verbose)
198				{
199				unsigned long id = SSL_CIPHER_get_id(c);
200				int id0 = (int)(id >> 24);
201				int id1 = (int)((id >> 16) & 0xffL);
202				int id2 = (int)((id >> 8) & 0xffL);
203				int id3 = (int)(id & 0xffL);
204
205				if ((id & 0xff000000L) == 0x02000000L)
206					BIO_printf(STDout, "     0x%02X,0x%02X,0x%02X - ", id1, id2, id3); /* SSL2 cipher */
207				else if ((id & 0xff000000L) == 0x03000000L)
208					BIO_printf(STDout, "          0x%02X,0x%02X - ", id2, id3); /* SSL3 cipher */
209				else
210					BIO_printf(STDout, "0x%02X,0x%02X,0x%02X,0x%02X - ", id0, id1, id2, id3); /* whatever */
211				}
212
213			BIO_puts(STDout,SSL_CIPHER_description(c,buf,sizeof buf));
214			}
215		}
216
217	ret=0;
218	if (0)
219		{
220err:
221		SSL_load_error_strings();
222		ERR_print_errors(bio_err);
223		}
224end:
225	if (ctx != NULL) SSL_CTX_free(ctx);
226	if (ssl != NULL) SSL_free(ssl);
227	if (STDout != NULL) BIO_free_all(STDout);
228	apps_shutdown();
229	OPENSSL_EXIT(ret);
230	}
231
232