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
Ciphers(const std::vector<std::string> & args)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