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 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 = c->id; 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 { 220 err: 221 SSL_load_error_strings(); 222 ERR_print_errors(bio_err); 223 } 224 end: 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