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 #ifndef OPENSSL_NO_SSL_TRACE 89 int stdname = 0; 90 #endif 91 const char **pp; 92 const char *p; 93 int badops = 0; 94 SSL_CTX *ctx = NULL; 95 SSL *ssl = NULL; 96 char *ciphers = NULL; 97 const SSL_METHOD *meth = NULL; 98 STACK_OF(SSL_CIPHER) *sk; 99 char buf[512]; 100 BIO *STDout = NULL; 101 102 meth = SSLv23_server_method(); 103 104 apps_startup(); 105 106 if (bio_err == NULL) 107 bio_err = BIO_new_fp(stderr, BIO_NOCLOSE); 108 STDout = BIO_new_fp(stdout, BIO_NOCLOSE); 109 #ifdef OPENSSL_SYS_VMS 110 { 111 BIO *tmpbio = BIO_new(BIO_f_linebuffer()); 112 STDout = BIO_push(tmpbio, STDout); 113 } 114 #endif 115 if (!load_config(bio_err, NULL)) 116 goto end; 117 118 argc--; 119 argv++; 120 while (argc >= 1) { 121 if (strcmp(*argv, "-v") == 0) 122 verbose = 1; 123 else if (strcmp(*argv, "-V") == 0) 124 verbose = Verbose = 1; 125 #ifndef OPENSSL_NO_SSL_TRACE 126 else if (strcmp(*argv, "-stdname") == 0) 127 stdname = verbose = 1; 128 #endif 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) || (strcmp(*argv, "-?") == 0)) { 142 badops = 1; 143 break; 144 } else { 145 ciphers = *argv; 146 } 147 argc--; 148 argv++; 149 } 150 151 if (badops) { 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) 161 goto err; 162 if (ciphers != NULL) { 163 if (!SSL_CTX_set_cipher_list(ctx, ciphers)) { 164 BIO_printf(bio_err, "Error in cipher list\n"); 165 goto err; 166 } 167 } 168 ssl = SSL_new(ctx); 169 if (ssl == NULL) 170 goto err; 171 172 if (!verbose) { 173 for (i = 0;; i++) { 174 p = SSL_get_cipher_list(ssl, i); 175 if (p == NULL) 176 break; 177 if (i != 0) 178 BIO_printf(STDout, ":"); 179 BIO_printf(STDout, "%s", p); 180 } 181 BIO_printf(STDout, "\n"); 182 } else { /* verbose */ 183 184 sk = SSL_get_ciphers(ssl); 185 186 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { 187 SSL_CIPHER *c; 188 189 c = sk_SSL_CIPHER_value(sk, i); 190 191 if (Verbose) { 192 unsigned long id = SSL_CIPHER_get_id(c); 193 int id0 = (int)(id >> 24); 194 int id1 = (int)((id >> 16) & 0xffL); 195 int id2 = (int)((id >> 8) & 0xffL); 196 int id3 = (int)(id & 0xffL); 197 198 if ((id & 0xff000000L) == 0x02000000L) { 199 /* SSL2 cipher */ 200 BIO_printf(STDout, " 0x%02X,0x%02X,0x%02X - ", id1, 201 id2, id3); 202 } else if ((id & 0xff000000L) == 0x03000000L) { 203 /* SSL3 cipher */ 204 BIO_printf(STDout, " 0x%02X,0x%02X - ", id2, 205 id3); 206 } else { 207 /* whatever */ 208 BIO_printf(STDout, "0x%02X,0x%02X,0x%02X,0x%02X - ", id0, 209 id1, id2, id3); 210 } 211 } 212 #ifndef OPENSSL_NO_SSL_TRACE 213 if (stdname) { 214 const char *nm = SSL_CIPHER_standard_name(c); 215 if (nm == NULL) 216 nm = "UNKNOWN"; 217 BIO_printf(STDout, "%s - ", nm); 218 } 219 #endif 220 BIO_puts(STDout, SSL_CIPHER_description(c, buf, sizeof buf)); 221 } 222 } 223 224 ret = 0; 225 if (0) { 226 err: 227 SSL_load_error_strings(); 228 ERR_print_errors(bio_err); 229 } 230 end: 231 if (ctx != NULL) 232 SSL_CTX_free(ctx); 233 if (ssl != NULL) 234 SSL_free(ssl); 235 if (STDout != NULL) 236 BIO_free_all(STDout); 237 apps_shutdown(); 238 OPENSSL_EXIT(ret); 239 } 240