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 ciphers in SSLeay\n", 75 " -ssl2 - SSL2 mode\n", 76 " -ssl3 - SSL3 mode\n", 77 " -tls1 - TLS1 mode\n", 78 NULL 79 }; 80 81 int MAIN(int, char **); 82 83 int MAIN(int argc, char **argv) 84 { 85 int ret=1,i; 86 int verbose=0; 87 const char **pp; 88 const char *p; 89 int badops=0; 90 SSL_CTX *ctx=NULL; 91 SSL *ssl=NULL; 92 char *ciphers=NULL; 93 SSL_METHOD *meth=NULL; 94 STACK_OF(SSL_CIPHER) *sk; 95 char buf[512]; 96 BIO *STDout=NULL; 97 98 #if !defined(OPENSSL_NO_SSL2) && !defined(OPENSSL_NO_SSL3) 99 meth=SSLv23_server_method(); 100 #elif !defined(OPENSSL_NO_SSL3) 101 meth=SSLv3_server_method(); 102 #elif !defined(OPENSSL_NO_SSL2) 103 meth=SSLv2_server_method(); 104 #endif 105 106 apps_startup(); 107 108 if (bio_err == NULL) 109 bio_err=BIO_new_fp(stderr,BIO_NOCLOSE); 110 STDout=BIO_new_fp(stdout,BIO_NOCLOSE); 111 #ifdef OPENSSL_SYS_VMS 112 { 113 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 114 STDout = BIO_push(tmpbio, STDout); 115 } 116 #endif 117 118 argc--; 119 argv++; 120 while (argc >= 1) 121 { 122 if (strcmp(*argv,"-v") == 0) 123 verbose=1; 124 #ifndef OPENSSL_NO_SSL2 125 else if (strcmp(*argv,"-ssl2") == 0) 126 meth=SSLv2_client_method(); 127 #endif 128 #ifndef OPENSSL_NO_SSL3 129 else if (strcmp(*argv,"-ssl3") == 0) 130 meth=SSLv3_client_method(); 131 #endif 132 #ifndef OPENSSL_NO_TLS1 133 else if (strcmp(*argv,"-tls1") == 0) 134 meth=TLSv1_client_method(); 135 #endif 136 else if ((strncmp(*argv,"-h",2) == 0) || 137 (strcmp(*argv,"-?") == 0)) 138 { 139 badops=1; 140 break; 141 } 142 else 143 { 144 ciphers= *argv; 145 } 146 argc--; 147 argv++; 148 } 149 150 if (badops) 151 { 152 for (pp=ciphers_usage; (*pp != NULL); pp++) 153 BIO_printf(bio_err,"%s",*pp); 154 goto end; 155 } 156 157 OpenSSL_add_ssl_algorithms(); 158 159 ctx=SSL_CTX_new(meth); 160 if (ctx == NULL) goto err; 161 if (ciphers != NULL) { 162 if(!SSL_CTX_set_cipher_list(ctx,ciphers)) { 163 BIO_printf(bio_err, "Error in cipher list\n"); 164 goto err; 165 } 166 } 167 ssl=SSL_new(ctx); 168 if (ssl == NULL) goto err; 169 170 171 if (!verbose) 172 { 173 for (i=0; ; i++) 174 { 175 p=SSL_get_cipher_list(ssl,i); 176 if (p == NULL) break; 177 if (i != 0) BIO_printf(STDout,":"); 178 BIO_printf(STDout,"%s",p); 179 } 180 BIO_printf(STDout,"\n"); 181 } 182 else 183 { 184 sk=SSL_get_ciphers(ssl); 185 186 for (i=0; i<sk_SSL_CIPHER_num(sk); i++) 187 { 188 BIO_puts(STDout,SSL_CIPHER_description( 189 sk_SSL_CIPHER_value(sk,i), 190 buf,sizeof buf)); 191 } 192 } 193 194 ret=0; 195 if (0) 196 { 197 err: 198 SSL_load_error_strings(); 199 ERR_print_errors(bio_err); 200 } 201 end: 202 if (ctx != NULL) SSL_CTX_free(ctx); 203 if (ssl != NULL) SSL_free(ssl); 204 if (STDout != NULL) BIO_free_all(STDout); 205 apps_shutdown(); 206 OPENSSL_EXIT(ret); 207 } 208 209