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 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
  72 static 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",
  79 NULL
  80 };
  81
  82 int MAIN(int, char **);
  83
  84 int MAIN(int argc, char **argv)
  85         {
  86         int ret=1,i;
  87         int verbose=0,Verbose=0;
  88         int use_supported = 0;
  89 #ifndef OPENSSL_NO_SSL_TRACE
  90         int stdname = 0;
  91 #endif
  92         const char **pp;
  93         const char *p;
  94         int badops=0;
  95         SSL_CTX *ctx=NULL;
  96         SSL *ssl=NULL;
  97         char *ciphers=NULL;
  98         const SSL_METHOD *meth=NULL;
  99         STACK_OF(SSL_CIPHER) *sk=NULL;
 100         char buf[512];
 101         BIO *STDout=NULL;
 102
 103 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3)
 104         meth=SSLv23_server_method();
 105 #elif !defined(OPENSSL_NO_SSL3)
 106         meth=SSLv3_server_method();
 107 #elif !defined(OPENSSL_NO_SSL2)
 108         meth=SSLv2_server_method();
 109 #endif
 110
 111         apps_startup();
 112
 113         if (bio_err == NULL)
 114                 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE);
 115         STDout=BIO_new_fp(stdout,BIO_NOCLOSE);
 116 #ifdef OPENSSL_SYS_VMS
 117         {
 118         BIO *tmpbio = BIO_new(BIO_f_linebuffer());
 119         STDout = BIO_push(tmpbio, STDout);
 120         }
 121 #endif
 122         if (!load_config(bio_err, NULL))
 123                 goto end;
 124
 125         argc--;
 126         argv++;
 127         while (argc >= 1)
 128                 {
 129                 if (strcmp(*argv,"-v") == 0)
 130                         verbose=1;
 131                 else if (strcmp(*argv,"-V") == 0)
 132                         verbose=Verbose=1;
 133                 else if (strcmp(*argv,"-s") == 0)
 134                         use_supported = 1;
 135 #ifndef OPENSSL_NO_SSL_TRACE
 136                 else if (strcmp(*argv,"-stdname") == 0)
 137                         stdname=verbose=1;
 138 #endif
 139 #ifndef OPENSSL_NO_SSL2
 140                 else if (strcmp(*argv,"-ssl2") == 0)
 141                         meth=SSLv2_client_method();
 142 #endif
 143 #ifndef OPENSSL_NO_SSL3
 144                 else if (strcmp(*argv,"-ssl3") == 0)
 145                         meth=SSLv3_client_method();
 146 #endif
 147 #ifndef OPENSSL_NO_TLS1
 148                 else if (strcmp(*argv,"-tls1") == 0)
 149                         meth=TLSv1_client_method();
 150 #endif
 151                 else if ((strncmp(*argv,"-h",2) == 0) ||
 152                          (strcmp(*argv,"-?") == 0))
 153                         {
 154                         badops=1;
 155                         break;
 156                         }
 157                 else
 158                         {
 159                         ciphers= *argv;
 160                         }
 161                 argc--;
 162                 argv++;
 163                 }
 164
 165         if (badops)
 166                 {
 167                 for (pp=ciphers_usage; (*pp != NULL); pp++)
 168                         BIO_printf(bio_err,"%s",*pp);
 169                 goto end;
 170                 }
 171
 172         OpenSSL_add_ssl_algorithms();
 173
 174         ctx=SSL_CTX_new(meth);
 175         if (ctx == NULL) goto err;
 176         if (ciphers != NULL) {
 177                 if(!SSL_CTX_set_cipher_list(ctx,ciphers)) {
 178                         BIO_printf(bio_err, "Error in cipher list\n");
 179                         goto err;
 180                 }
 181         }
 182         ssl=SSL_new(ctx);
 183         if (ssl == NULL) goto err;
 184
 185         if (use_supported)
 186                 sk=SSL_get1_supported_ciphers(ssl);
 187         else
 188                 sk=SSL_get_ciphers(ssl);
 189
 190         if (!verbose)
 191                 {
 192                 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
 193                         {
 194                         SSL_CIPHER *c = sk_SSL_CIPHER_value(sk,i);
 195                         p = SSL_CIPHER_get_name(c);
 196                         if (p == NULL) break;
 197                         if (i != 0) BIO_printf(STDout,":");
 198                         BIO_printf(STDout,"%s",p);
 199                         }
 200                 BIO_printf(STDout,"\n");
 201                 }
 202         else /* verbose */
 203                 {
 204
 205                 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
 206                         {
 207                         SSL_CIPHER *c;
 208
 209                         c = sk_SSL_CIPHER_value(sk,i);
 210
 211                         if (Verbose)
 212                                 {
 213                                 unsigned long id = SSL_CIPHER_get_id(c);
 214                                 int id0 = (int)(id >> 24);
 215                                 int id1 = (int)((id >> 16) & 0xffL);
 216                                 int id2 = (int)((id >> 8) & 0xffL);
 217                                 int id3 = (int)(id & 0xffL);
 218
 219                                 if ((id & 0xff000000L) == 0x02000000L)
 220                                         BIO_printf(STDout, "     0x%02X,0x%02X,0x%02X - ", id1, id2, id3); /* SSL2 cipher */
 221                                 else if ((id & 0xff000000L) == 0x03000000L)
 222                                         BIO_printf(STDout, "          0x%02X,0x%02X - ", id2, id3); /* SSL3 cipher */
 223                                 else
 224                                         BIO_printf(STDout, "0x%02X,0x%02X,0x%02X,0x%02X - ", id0, id1, id2, id3); /* whatever */
 225                                 }
 226 #ifndef OPENSSL_NO_SSL_TRACE
 227                         if (stdname)
 228                                 {
 229                                 const char *nm = SSL_CIPHER_standard_name(c);
 230                                 if (nm == NULL)
 231                                         nm = "UNKNOWN";
 232                                 BIO_printf(STDout, "%s - ", nm);
 233                                 }
 234 #endif
 235                         BIO_puts(STDout,SSL_CIPHER_description(c,buf,sizeof buf));
 236                         }
 237                 }
 238
 239         ret=0;
 240         if (0)
 241                 {
 242 err:
 243                 SSL_load_error_strings();
 244                 ERR_print_errors(bio_err);
 245                 }
 246 end:
 247         if (use_supported && sk)
 248                 sk_SSL_CIPHER_free(sk);
 249         if (ctx != NULL) SSL_CTX_free(ctx);
 250         if (ssl != NULL) SSL_free(ssl);
 251         if (STDout != NULL) BIO_free_all(STDout);
 252         apps_shutdown();
 253         OPENSSL_EXIT(ret);
 254         }
 255