| /* Copyright (c) 2015, Google Inc. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY |
| * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN |
| * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ |
| |
| #include <string> |
| #include <vector> |
| |
| #include <stdint.h> |
| #include <stdlib.h> |
| |
| #include <openssl/ssl.h> |
| |
| #include "internal.h" |
| |
| |
| bool Ciphers(const std::vector<std::string> &args) { |
| if (args.size() != 1) { |
| fprintf(stderr, "Usage: bssl ciphers <cipher suite string>\n"); |
| return false; |
| } |
| |
| const std::string &ciphers_string = args.back(); |
| |
| bssl::UniquePtr<SSL_CTX> ctx(SSL_CTX_new(SSLv23_client_method())); |
| if (!SSL_CTX_set_cipher_list(ctx.get(), ciphers_string.c_str())) { |
| fprintf(stderr, "Failed to parse cipher suite config.\n"); |
| ERR_print_errors_fp(stderr); |
| return false; |
| } |
| |
| const struct ssl_cipher_preference_list_st *pref_list = ctx->cipher_list; |
| STACK_OF(SSL_CIPHER) *ciphers = pref_list->ciphers; |
| |
| bool last_in_group = false; |
| for (size_t i = 0; i < sk_SSL_CIPHER_num(ciphers); i++) { |
| bool in_group = pref_list->in_group_flags[i]; |
| const SSL_CIPHER *cipher = sk_SSL_CIPHER_value(ciphers, i); |
| |
| if (in_group && !last_in_group) { |
| printf("[\n "); |
| } else if (last_in_group) { |
| printf(" "); |
| } |
| |
| printf("%s\n", SSL_CIPHER_get_name(cipher)); |
| |
| if (!in_group && last_in_group) { |
| printf("]\n"); |
| } |
| last_in_group = in_group; |
| } |
| |
| return true; |
| } |