1 /*
2 * Copyright 2013-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 #include <string.h>
11 #include <openssl/err.h>
12 #include <openssl/ssl.h>
13
main(int argc,char ** argv)14 int main(int argc, char **argv)
15 {
16 BIO *sbio = NULL, *out = NULL;
17 int len;
18 char tmpbuf[1024];
19 SSL_CTX *ctx;
20 SSL_CONF_CTX *cctx;
21 SSL *ssl;
22 char **args = argv + 1;
23 const char *connect_str = "localhost:4433";
24 int nargs = argc - 1;
25
26 ctx = SSL_CTX_new(TLS_client_method());
27 cctx = SSL_CONF_CTX_new();
28 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT);
29 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
30 while (*args && **args == '-') {
31 int rv;
32 /* Parse standard arguments */
33 rv = SSL_CONF_cmd_argv(cctx, &nargs, &args);
34 if (rv == -3) {
35 fprintf(stderr, "Missing argument for %s\n", *args);
36 goto end;
37 }
38 if (rv < 0) {
39 fprintf(stderr, "Error in command %s\n", *args);
40 ERR_print_errors_fp(stderr);
41 goto end;
42 }
43 /* If rv > 0 we processed something so proceed to next arg */
44 if (rv > 0)
45 continue;
46 /* Otherwise application specific argument processing */
47 if (strcmp(*args, "-connect") == 0) {
48 connect_str = args[1];
49 if (connect_str == NULL) {
50 fprintf(stderr, "Missing -connect argument\n");
51 goto end;
52 }
53 args += 2;
54 nargs -= 2;
55 continue;
56 } else {
57 fprintf(stderr, "Unknown argument %s\n", *args);
58 goto end;
59 }
60 }
61
62 if (!SSL_CONF_CTX_finish(cctx)) {
63 fprintf(stderr, "Finish error\n");
64 ERR_print_errors_fp(stderr);
65 goto end;
66 }
67
68 /*
69 * We'd normally set some stuff like the verify paths and * mode here
70 * because as things stand this will connect to * any server whose
71 * certificate is signed by any CA.
72 */
73
74 sbio = BIO_new_ssl_connect(ctx);
75
76 BIO_get_ssl(sbio, &ssl);
77
78 if (!ssl) {
79 fprintf(stderr, "Can't locate SSL pointer\n");
80 goto end;
81 }
82
83 /* We might want to do other things with ssl here */
84
85 BIO_set_conn_hostname(sbio, connect_str);
86
87 out = BIO_new_fp(stdout, BIO_NOCLOSE);
88 if (BIO_do_connect(sbio) <= 0) {
89 fprintf(stderr, "Error connecting to server\n");
90 ERR_print_errors_fp(stderr);
91 goto end;
92 }
93
94 /* Could examine ssl here to get connection info */
95
96 BIO_puts(sbio, "GET / HTTP/1.0\n\n");
97 for (;;) {
98 len = BIO_read(sbio, tmpbuf, 1024);
99 if (len <= 0)
100 break;
101 BIO_write(out, tmpbuf, len);
102 }
103 end:
104 SSL_CONF_CTX_free(cctx);
105 BIO_free_all(sbio);
106 BIO_free(out);
107 return 0;
108 }
109