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Commit | Line | Data |
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d02b48c6 RE |
1 | /* NOCW */ |
2 | /* demos/bio/sconnect.c */ | |
3 | ||
c695ebe2 MC |
4 | /*- |
5 | * A minimal program to do SSL to a passed host and port. | |
d02b48c6 RE |
6 | * It is actually using non-blocking IO but in a very simple manner |
7 | * sconnect host:port - it does a 'GET / HTTP/1.0' | |
8 | * | |
9 | * cc -I../../include sconnect.c -L../.. -lssl -lcrypto | |
10 | */ | |
11 | #include <stdio.h> | |
12 | #include <stdlib.h> | |
71f08093 | 13 | #include <unistd.h> |
ec577822 BM |
14 | #include <openssl/err.h> |
15 | #include <openssl/ssl.h> | |
d02b48c6 RE |
16 | |
17 | extern int errno; | |
18 | ||
ae5c8664 | 19 | int main(argc, argv) |
d02b48c6 RE |
20 | int argc; |
21 | char *argv[]; | |
ae5c8664 MC |
22 | { |
23 | char *host; | |
24 | BIO *out; | |
25 | char buf[1024 * 10], *p; | |
26 | SSL_CTX *ssl_ctx = NULL; | |
27 | SSL *ssl; | |
28 | BIO *ssl_bio; | |
29 | int i, len, off, ret = 1; | |
30 | ||
31 | if (argc <= 1) | |
32 | host = "localhost:4433"; | |
33 | else | |
34 | host = argv[1]; | |
d02b48c6 | 35 | |
8d6e6048 | 36 | #ifdef WATT32 |
ae5c8664 MC |
37 | dbug_init(); |
38 | sock_init(); | |
8d6e6048 RL |
39 | #endif |
40 | ||
ae5c8664 MC |
41 | /* Lets get nice error messages */ |
42 | SSL_load_error_strings(); | |
43 | ||
44 | /* Setup all the global SSL stuff */ | |
45 | OpenSSL_add_ssl_algorithms(); | |
46 | ssl_ctx = SSL_CTX_new(SSLv23_client_method()); | |
47 | ||
48 | /* Lets make a SSL structure */ | |
49 | ssl = SSL_new(ssl_ctx); | |
50 | SSL_set_connect_state(ssl); | |
51 | ||
52 | /* Use it inside an SSL BIO */ | |
53 | ssl_bio = BIO_new(BIO_f_ssl()); | |
54 | BIO_set_ssl(ssl_bio, ssl, BIO_CLOSE); | |
55 | ||
56 | /* Lets use a connect BIO under the SSL BIO */ | |
57 | out = BIO_new(BIO_s_connect()); | |
58 | BIO_set_conn_hostname(out, host); | |
59 | BIO_set_nbio(out, 1); | |
60 | out = BIO_push(ssl_bio, out); | |
61 | ||
62 | p = "GET / HTTP/1.0\r\n\r\n"; | |
63 | len = strlen(p); | |
64 | ||
65 | off = 0; | |
66 | for (;;) { | |
67 | i = BIO_write(out, &(p[off]), len); | |
68 | if (i <= 0) { | |
69 | if (BIO_should_retry(out)) { | |
70 | fprintf(stderr, "write DELAY\n"); | |
71 | sleep(1); | |
72 | continue; | |
73 | } else { | |
74 | goto err; | |
75 | } | |
76 | } | |
77 | off += i; | |
78 | len -= i; | |
79 | if (len <= 0) | |
80 | break; | |
81 | } | |
82 | ||
83 | for (;;) { | |
84 | i = BIO_read(out, buf, sizeof(buf)); | |
85 | if (i == 0) | |
86 | break; | |
87 | if (i < 0) { | |
88 | if (BIO_should_retry(out)) { | |
89 | fprintf(stderr, "read DELAY\n"); | |
90 | sleep(1); | |
91 | continue; | |
92 | } | |
93 | goto err; | |
94 | } | |
95 | fwrite(buf, 1, i, stdout); | |
96 | } | |
97 | ||
98 | ret = 1; | |
99 | ||
100 | if (0) { | |
101 | err: | |
102 | if (ERR_peek_error() == 0) { /* system call error */ | |
103 | fprintf(stderr, "errno=%d ", errno); | |
104 | perror("error"); | |
105 | } else | |
106 | ERR_print_errors_fp(stderr); | |
107 | } | |
108 | BIO_free_all(out); | |
109 | if (ssl_ctx != NULL) | |
110 | SSL_CTX_free(ssl_ctx); | |
111 | exit(!ret); | |
112 | return (ret); | |
113 | } |