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 #include <openssl/conf.h>
14
main(int argc,char ** argv)15 int main(int argc, char **argv)
16 {
17 BIO *sbio = NULL, *out = NULL;
18 int i, len, rv;
19 char tmpbuf[1024];
20 SSL_CTX *ctx = NULL;
21 SSL_CONF_CTX *cctx = NULL;
22 SSL *ssl = NULL;
23 CONF *conf = NULL;
24 STACK_OF(CONF_VALUE) *sect = NULL;
25 CONF_VALUE *cnf;
26 const char *connect_str = "localhost:4433";
27 long errline = -1;
28 int ret = EXIT_FAILURE;
29
30 conf = NCONF_new(NULL);
31
32 if (NCONF_load(conf, "connect.cnf", &errline) <= 0) {
33 if (errline <= 0)
34 fprintf(stderr, "Error processing config file\n");
35 else
36 fprintf(stderr, "Error on line %ld\n", errline);
37 goto end;
38 }
39
40 sect = NCONF_get_section(conf, "default");
41
42 if (sect == NULL) {
43 fprintf(stderr, "Error retrieving default section\n");
44 goto end;
45 }
46
47 ctx = SSL_CTX_new(TLS_client_method());
48 cctx = SSL_CONF_CTX_new();
49 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_CLIENT);
50 SSL_CONF_CTX_set_flags(cctx, SSL_CONF_FLAG_FILE);
51 SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
52 for (i = 0; i < sk_CONF_VALUE_num(sect); i++) {
53 cnf = sk_CONF_VALUE_value(sect, i);
54 rv = SSL_CONF_cmd(cctx, cnf->name, cnf->value);
55 if (rv > 0)
56 continue;
57 if (rv != -2) {
58 fprintf(stderr, "Error processing %s = %s\n",
59 cnf->name, cnf->value);
60 ERR_print_errors_fp(stderr);
61 goto end;
62 }
63 if (strcmp(cnf->name, "Connect") == 0) {
64 connect_str = cnf->value;
65 } else {
66 fprintf(stderr, "Unknown configuration option %s\n", cnf->name);
67 goto end;
68 }
69 }
70
71 if (!SSL_CONF_CTX_finish(cctx)) {
72 fprintf(stderr, "Finish error\n");
73 ERR_print_errors_fp(stderr);
74 goto end;
75 }
76
77 /*
78 * We'd normally set some stuff like the verify paths and * mode here
79 * because as things stand this will connect to * any server whose
80 * certificate is signed by any CA.
81 */
82
83 sbio = BIO_new_ssl_connect(ctx);
84
85 BIO_get_ssl(sbio, &ssl);
86
87 if (!ssl) {
88 fprintf(stderr, "Can't locate SSL pointer\n");
89 goto end;
90 }
91
92 /* We might want to do other things with ssl here */
93
94 BIO_set_conn_hostname(sbio, connect_str);
95
96 out = BIO_new_fp(stdout, BIO_NOCLOSE);
97 if (BIO_do_connect(sbio) <= 0) {
98 fprintf(stderr, "Error connecting to server\n");
99 ERR_print_errors_fp(stderr);
100 goto end;
101 }
102
103 /* Could examine ssl here to get connection info */
104
105 BIO_puts(sbio, "GET / HTTP/1.0\n\n");
106 for (;;) {
107 len = BIO_read(sbio, tmpbuf, 1024);
108 if (len <= 0)
109 break;
110 BIO_write(out, tmpbuf, len);
111 }
112 ret = EXIT_SUCCESS;
113
114 end:
115 SSL_CONF_CTX_free(cctx);
116 BIO_free_all(sbio);
117 BIO_free(out);
118 NCONF_free(conf);
119 return ret;
120 }
121
