Added intermediate casts to void* to prevent spurious warnings (with Clang and -Wcast...
[BearSSL] / tools / brssl.c
1 /*
2 * Copyright (c) 2016 Thomas Pornin <pornin@bolet.org>
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sublicense, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h>
28 #include <stdint.h>
29 #include <errno.h>
30
31 /*
32 * Network stuff on Windows requires some specific code.
33 */
34 #ifdef _WIN32
35 #include <winsock2.h>
36 #include <ws2tcpip.h>
37 #pragma comment(lib, "Ws2_32.lib")
38 #endif
39
40 #include "brssl.h"
41
42 static void
43 usage(void)
44 {
45 fprintf(stderr, "usage: brssl command [ options ]\n");
46 fprintf(stderr, "available commands:\n");
47 fprintf(stderr, " client run SSL client\n");
48 fprintf(stderr, " server run SSL server\n");
49 fprintf(stderr, " verify verify certificate chain\n");
50 fprintf(stderr, " skey decode private key\n");
51 fprintf(stderr, " ta decode trust anchors\n");
52 fprintf(stderr, " chain make C code for certificate chains\n");
53 fprintf(stderr, " twrch run the Twrch protocol\n");
54 }
55
56 int
57 main(int argc, char *argv[])
58 {
59 char *cmd;
60
61 if (argc < 2) {
62 usage();
63 return EXIT_FAILURE;
64 }
65 #ifdef _WIN32
66 {
67 WSADATA wd;
68 int r;
69
70 r = WSAStartup(MAKEWORD(2, 2), &wd);
71 if (r != 0) {
72 fprintf(stderr, "WARNING: network initialisation"
73 " failed (WSAStartup() returned %d)\n", r);
74 }
75 }
76 #endif
77 cmd = argv[1];
78 if (eqstr(cmd, "client")) {
79 if (do_client(argc - 2, argv + 2) < 0) {
80 return EXIT_FAILURE;
81 }
82 } else if (eqstr(cmd, "server")) {
83 if (do_server(argc - 2, argv + 2) < 0) {
84 return EXIT_FAILURE;
85 }
86 } else if (eqstr(cmd, "verify")) {
87 if (do_verify(argc - 2, argv + 2) < 0) {
88 return EXIT_FAILURE;
89 }
90 } else if (eqstr(cmd, "skey")) {
91 if (do_skey(argc - 2, argv + 2) < 0) {
92 return EXIT_FAILURE;
93 }
94 } else if (eqstr(cmd, "ta")) {
95 if (do_ta(argc - 2, argv + 2) < 0) {
96 return EXIT_FAILURE;
97 }
98 } else if (eqstr(cmd, "chain")) {
99 if (do_chain(argc - 2, argv + 2) < 0) {
100 return EXIT_FAILURE;
101 }
102 } else if (eqstr(cmd, "twrch")) {
103 int ret;
104
105 ret = do_twrch(argc - 2, argv + 2);
106 if (ret < 0) {
107 return EXIT_FAILURE;
108 } else {
109 return ret;
110 }
111 } else {
112 fprintf(stderr, "unknown command: '%s'\n", cmd);
113 usage();
114 return EXIT_FAILURE;
115 }
116 return 0;
117 }