apps/ciphers.c

   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 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
  72 static char *ciphers_usage[]={
  73 "usage: ciphers args\n",
  74 " -v          - verbose mode, a textual listing of the ciphers in SSLeay\n",
  75 " -ssl2       - SSL2 mode\n",
  76 " -ssl3       - SSL3 mode\n",
  77 NULL
  78 };
  79
  80 int MAIN(int argc, char **argv)
  81         {
  82         int ret=1,i;
  83         int verbose=0;
  84         char **pp;
  85         const char *p;
  86         int badops=0;
  87         SSL_CTX *ctx=NULL;
  88         SSL *ssl=NULL;
  89         char *ciphers=NULL;
  90         SSL_METHOD *meth=NULL;
  91         STACK_OF(SSL_CIPHER) *sk;
  92         char buf[512];
  93         BIO *STDout=NULL;
  94
  95 #if !defined(NO_SSL2) && !defined(NO_SSL3)
  96         meth=SSLv23_server_method();
  97 #elif !defined(NO_SSL3)
  98         meth=SSLv3_server_method();
  99 #elif !defined(NO_SSL2)
 100         meth=SSLv2_server_method();
 101 #endif
 102
 103         apps_startup();
 104
 105         if (bio_err == NULL)
 106                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 107         STDout=BIO_new_fp(stdout,BIO_NOCLOSE);
 108
 109         argc--;
 110         argv++;
 111         while (argc >= 1)
 112                 {
 113                 if (strcmp(*argv,"-v") == 0)
 114                         verbose=1;
 115 #ifndef NO_SSL2
 116                 else if (strcmp(*argv,"-ssl2") == 0)
 117                         meth=SSLv2_client_method();
 118 #endif
 119 #ifndef NO_SSL3
 120                 else if (strcmp(*argv,"-ssl3") == 0)
 121                         meth=SSLv3_client_method();
 122 #endif
 123                 else if ((strncmp(*argv,"-h",2) == 0) ||
 124                          (strcmp(*argv,"-?") == 0))
 125                         {
 126                         badops=1;
 127                         break;
 128                         }
 129                 else
 130                         {
 131                         ciphers= *argv;
 132                         }
 133                 argc--;
 134                 argv++;
 135                 }
 136
 137         if (badops)
 138                 {
 139                 for (pp=ciphers_usage; (*pp != NULL); pp++)
 140                         BIO_printf(bio_err,*pp);
 141                 goto end;
 142                 }
 143
 144         SSLeay_add_ssl_algorithms();
 145
 146         ctx=SSL_CTX_new(meth);
 147         if (ctx == NULL) goto err;
 148         if (ciphers != NULL)
 149                 SSL_CTX_set_cipher_list(ctx,ciphers);
 150         ssl=SSL_new(ctx);
 151         if (ssl == NULL) goto err;
 152
 153
 154         if (!verbose)
 155                 {
 156                 for (i=0; ; i++)
 157                         {
 158                         p=SSL_get_cipher_list(ssl,i);
 159                         if (p == NULL) break;
 160                         if (i != 0) BIO_printf(STDout,":");
 161                         BIO_printf(STDout,"%s",p);
 162                         }
 163                 BIO_printf(STDout,"\n");
 164                 }
 165         else
 166                 {
 167                 sk=SSL_get_ciphers(ssl);
 168
 169                 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
 170                         {
 171                         BIO_puts(STDout,SSL_CIPHER_description(
 172                                 sk_SSL_CIPHER_value(sk,i),
 173                                 buf,512));
 174                         }
 175                 }
 176
 177         ret=0;
 178         if (0)
 179                 {
 180 err:
 181                 SSL_load_error_strings();
 182                 ERR_print_errors(bio_err);
 183                 }
 184 end:
 185         if (ctx != NULL) SSL_CTX_free(ctx);
 186         if (ssl != NULL) SSL_free(ssl);
 187         if (STDout != NULL) BIO_free(STDout);
 188         EXIT(ret);
 189         }
 190