1 /* Copyright (c) 2015, Google Inc. 2 * 3 * Permission to use, copy, modify, and/or distribute this software for any 4 * purpose with or without fee is hereby granted, provided that the above 5 * copyright notice and this permission notice appear in all copies. 6 * 7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ 14 15 #include <string> 16 #include <vector> 17 18 #include <stdint.h> 19 #include <stdlib.h> 20 21 #include <openssl/ssl.h> 22 23 #include "../crypto/test/scoped_types.h" 24 #include "../ssl/test/scoped_types.h" 25 #include "internal.h" 26 27 28 bool Ciphers(const std::vector<std::string> &args) { 29 if (args.size() != 1) { 30 fprintf(stderr, "Usage: bssl ciphers <cipher suite string>\n"); 31 return false; 32 } 33 34 const std::string &ciphers_string = args.back(); 35 36 ScopedSSL_CTX ctx(SSL_CTX_new(SSLv23_client_method())); 37 if (!SSL_CTX_set_cipher_list(ctx.get(), ciphers_string.c_str())) { 38 fprintf(stderr, "Failed to parse cipher suite config.\n"); 39 ERR_print_errors_fp(stderr); 40 return false; 41 } 42 43 const struct ssl_cipher_preference_list_st *pref_list = ctx->cipher_list; 44 STACK_OF(SSL_CIPHER) *ciphers = pref_list->ciphers; 45 46 bool last_in_group = false; 47 for (size_t i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { 48 bool in_group = pref_list->in_group_flags[i]; 49 const SSL_CIPHER *cipher = sk_SSL_CIPHER_value(ciphers, i); 50 51 if (in_group && !last_in_group) { 52 printf("[\n "); 53 } else if (last_in_group) { 54 printf(" "); 55 } 56 57 printf("%s\n", SSL_CIPHER_get_name(cipher)); 58 59 if (!in_group && last_in_group) { 60 printf("]\n"); 61 } 62 last_in_group = in_group; 63 } 64 65 return true; 66 } 67
