1 /*
2 * Copyright 2013-2023 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 int ret = EXIT_FAILURE;
26
27 ctx = SSL_CTX_new(TLS_client_method());
28 cctx = SSL_CONF_CTX_new();
29 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT);
30 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
31 while (*args && **args == '-') {
32 int rv;
33 /* Parse standard arguments */
34 rv = SSL_CONF_cmd_argv(cctx, &nargs, &args);
35 if (rv == -3) {
36 fprintf(stderr, "Missing argument for %s\n", *args);
37 goto end;
38 }
39 if (rv < 0) {
40 fprintf(stderr, "Error in command %s\n", *args);
41 ERR_print_errors_fp(stderr);
42 goto end;
43 }
44 /* If rv > 0 we processed something so proceed to next arg */
45 if (rv > 0)
46 continue;
47 /* Otherwise application specific argument processing */
48 if (strcmp(*args, "-connect") == 0) {
49 connect_str = args[1];
50 if (connect_str == NULL) {
51 fprintf(stderr, "Missing -connect argument\n");
52 goto end;
53 }
54 args += 2;
55 nargs -= 2;
56 continue;
57 } else {
58 fprintf(stderr, "Unknown argument %s\n", *args);
59 goto end;
60 }
61 }
62
63 if (!SSL_CONF_CTX_finish(cctx)) {
64 fprintf(stderr, "Finish error\n");
65 ERR_print_errors_fp(stderr);
66 goto end;
67 }
68
69 /*
70 * We'd normally set some stuff like the verify paths and * mode here
71 * because as things stand this will connect to * any server whose
72 * certificate is signed by any CA.
73 */
74
75 sbio = BIO_new_ssl_connect(ctx);
76
77 BIO_get_ssl(sbio, &ssl);
78
79 if (!ssl) {
80 fprintf(stderr, "Can't locate SSL pointer\n");
81 goto end;
82 }
83
84 /* We might want to do other things with ssl here */
85
86 BIO_set_conn_hostname(sbio, connect_str);
87
88 out = BIO_new_fp(stdout, BIO_NOCLOSE);
89 if (BIO_do_connect(sbio) <= 0) {
90 fprintf(stderr, "Error connecting to server\n");
91 ERR_print_errors_fp(stderr);
92 goto end;
93 }
94
95 /* Could examine ssl here to get connection info */
96
97 BIO_puts(sbio, "GET / HTTP/1.0\n\n");
98 for (;;) {
99 len = BIO_read(sbio, tmpbuf, 1024);
100 if (len <= 0)
101 break;
102 BIO_write(out, tmpbuf, len);
103 }
104 ret = EXIT_SUCCESS;
105 end:
106 SSL_CONF_CTX_free(cctx);
107 BIO_free_all(sbio);
108 BIO_free(out);
109 return ret;
110 }
111
