1 /* $OpenBSD: ciphers.c,v 1.1 2014/08/26 17:47:24 jsing Exp $ */ 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 63 #include "apps.h" 64 65 #include <openssl/err.h> 66 #include <openssl/ssl.h> 67 68 static const char *ciphers_usage[] = { 69 "usage: ciphers args\n", 70 " -v - verbose mode, a textual listing of the SSL/TLS ciphers in OpenSSL\n", 71 " -V - even more verbose\n", 72 " -ssl3 - SSL3 mode\n", 73 " -tls1 - TLS1 mode\n", 74 NULL 75 }; 76 77 int ciphers_main(int, char **); 78 79 int 80 ciphers_main(int argc, char **argv) 81 { 82 int ret = 1, i; 83 int verbose = 0, Verbose = 0; 84 const char **pp; 85 const char *p; 86 int badops = 0; 87 SSL_CTX *ctx = NULL; 88 SSL *ssl = NULL; 89 char *ciphers = NULL; 90 const SSL_METHOD *meth = NULL; 91 STACK_OF(SSL_CIPHER) * sk; 92 BIO *STDout = NULL; 93 char *desc; 94 95 meth = SSLv3_server_method(); 96 97 STDout = BIO_new_fp(stdout, BIO_NOCLOSE); 98 99 argc--; 100 argv++; 101 while (argc >= 1) { 102 if (strcmp(*argv, "-v") == 0) 103 verbose = 1; 104 else if (strcmp(*argv, "-V") == 0) 105 verbose = Verbose = 1; 106 else if (strcmp(*argv, "-ssl3") == 0) 107 meth = SSLv3_client_method(); 108 else if (strcmp(*argv, "-tls1") == 0) 109 meth = TLSv1_client_method(); 110 else if ((strncmp(*argv, "-h", 2) == 0) || 111 (strcmp(*argv, "-?") == 0)) { 112 badops = 1; 113 break; 114 } else { 115 ciphers = *argv; 116 } 117 argc--; 118 argv++; 119 } 120 121 if (badops) { 122 for (pp = ciphers_usage; (*pp != NULL); pp++) 123 BIO_printf(bio_err, "%s", *pp); 124 goto end; 125 } 126 127 ctx = SSL_CTX_new(meth); 128 if (ctx == NULL) 129 goto err; 130 if (ciphers != NULL) { 131 if (!SSL_CTX_set_cipher_list(ctx, ciphers)) { 132 BIO_printf(bio_err, "Error in cipher list\n"); 133 goto err; 134 } 135 } 136 ssl = SSL_new(ctx); 137 if (ssl == NULL) 138 goto err; 139 140 if (!verbose) { 141 for (i = 0; ; i++) { 142 p = SSL_get_cipher_list(ssl, i); 143 if (p == NULL) 144 break; 145 if (i != 0) 146 BIO_printf(STDout, ":"); 147 BIO_printf(STDout, "%s", p); 148 } 149 BIO_printf(STDout, "\n"); 150 } else { /* verbose */ 151 sk = SSL_get_ciphers(ssl); 152 153 for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { 154 SSL_CIPHER *c; 155 156 c = sk_SSL_CIPHER_value(sk, i); 157 158 if (Verbose) { 159 unsigned long id = SSL_CIPHER_get_id(c); 160 int id0 = (int) (id >> 24); 161 int id1 = (int) ((id >> 16) & 0xffL); 162 int id2 = (int) ((id >> 8) & 0xffL); 163 int id3 = (int) (id & 0xffL); 164 165 if ((id & 0xff000000L) == 0x02000000L) 166 BIO_printf(STDout, " 0x%02X,0x%02X,0x%02X - ", id1, id2, id3); /* SSL2 cipher */ 167 else if ((id & 0xff000000L) == 0x03000000L) 168 BIO_printf(STDout, " 0x%02X,0x%02X - ", id2, id3); /* SSL3 cipher */ 169 else 170 BIO_printf(STDout, "0x%02X,0x%02X,0x%02X,0x%02X - ", id0, id1, id2, id3); /* whatever */ 171 } 172 desc = SSL_CIPHER_description(c, NULL, 0); 173 BIO_puts(STDout, desc); 174 if (strcmp(desc, "OPENSSL_malloc Error") != 0) 175 free(desc); 176 } 177 } 178 179 ret = 0; 180 if (0) { 181 err: 182 ERR_print_errors(bio_err); 183 } 184 185 end: 186 if (ctx != NULL) 187 SSL_CTX_free(ctx); 188 if (ssl != NULL) 189 SSL_free(ssl); 190 if (STDout != NULL) 191 BIO_free_all(STDout); 192 193 return (ret); 194 } 195