2 /* demos/bio/sconnect.c */
5 * A minimal program to do SSL to a passed host and port.
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'
9 * cc -I../../include sconnect.c -L../.. -lssl -lcrypto
14 #include <openssl/err.h>
15 #include <openssl/ssl.h>
26 SSL_CTX *ssl_ctx=NULL;
32 host="localhost:4433";
41 /* Lets get nice error messages */
42 SSL_load_error_strings();
44 /* Setup all the global SSL stuff */
45 OpenSSL_add_ssl_algorithms();
46 ssl_ctx=SSL_CTX_new(SSLv23_client_method());
48 /* Lets make a SSL structure */
50 SSL_set_connect_state(ssl);
52 /* Use it inside an SSL BIO */
53 ssl_bio=BIO_new(BIO_f_ssl());
54 BIO_set_ssl(ssl_bio,ssl,BIO_CLOSE);
56 /* Lets use a connect BIO under the SSL BIO */
57 out=BIO_new(BIO_s_connect());
58 BIO_set_conn_hostname(out,host);
60 out=BIO_push(ssl_bio,out);
62 p="GET / HTTP/1.0\r\n\r\n";
68 i=BIO_write(out,&(p[off]),len);
71 if (BIO_should_retry(out))
73 fprintf(stderr,"write DELAY\n");
89 i=BIO_read(out,buf,sizeof(buf));
93 if (BIO_should_retry(out))
95 fprintf(stderr,"read DELAY\n");
101 fwrite(buf,1,i,stdout);
109 if (ERR_peek_error() == 0) /* system call error */
111 fprintf(stderr,"errno=%d ",errno);
115 ERR_print_errors_fp(stderr);
118 if (ssl_ctx != NULL) SSL_CTX_free(ssl_ctx);