+
+#ifdef CHARSET_EBCDIC
+static int ebcdic_new(BIO *bi);
+static int ebcdic_free(BIO *a);
+static int ebcdic_read(BIO *b, char *out, int outl);
+static int ebcdic_write(BIO *b, const char *in, int inl);
+static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr);
+static int ebcdic_gets(BIO *bp, char *buf, int size);
+static int ebcdic_puts(BIO *bp, const char *str);
+
+#define BIO_TYPE_EBCDIC_FILTER (18|0x0200)
+static BIO_METHOD methods_ebcdic=
+ {
+ BIO_TYPE_EBCDIC_FILTER,
+ "EBCDIC/ASCII filter",
+ ebcdic_write,
+ ebcdic_read,
+ ebcdic_puts,
+ ebcdic_gets,
+ ebcdic_ctrl,
+ ebcdic_new,
+ ebcdic_free,
+ };
+
+typedef struct
+{
+ size_t alloced;
+ char buff[1];
+} EBCDIC_OUTBUFF;
+
+BIO_METHOD *BIO_f_ebcdic_filter()
+{
+ return(&methods_ebcdic);
+}
+
+static int ebcdic_new(BIO *bi)
+{
+ EBCDIC_OUTBUFF *wbuf;
+
+ wbuf = (EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + 1024);
+ wbuf->alloced = 1024;
+ wbuf->buff[0] = '\0';
+
+ bi->ptr=(char *)wbuf;
+ bi->init=1;
+ bi->flags=0;
+ return(1);
+}
+
+static int ebcdic_free(BIO *a)
+{
+ if (a == NULL) return(0);
+ if (a->ptr != NULL)
+ OPENSSL_free(a->ptr);
+ a->ptr=NULL;
+ a->init=0;
+ a->flags=0;
+ return(1);
+}
+
+static int ebcdic_read(BIO *b, char *out, int outl)
+{
+ int ret=0;
+
+ if (out == NULL || outl == 0) return(0);
+ if (b->next_bio == NULL) return(0);
+
+ ret=BIO_read(b->next_bio,out,outl);
+ if (ret > 0)
+ ascii2ebcdic(out,out,ret);
+ return(ret);
+}
+
+static int ebcdic_write(BIO *b, const char *in, int inl)
+{
+ EBCDIC_OUTBUFF *wbuf;
+ int ret=0;
+ int num;
+ unsigned char n;
+
+ if ((in == NULL) || (inl <= 0)) return(0);
+ if (b->next_bio == NULL) return(0);
+
+ wbuf=(EBCDIC_OUTBUFF *)b->ptr;
+
+ if (inl > (num = wbuf->alloced))
+ {
+ num = num + num; /* double the size */
+ if (num < inl)
+ num = inl;
+ OPENSSL_free(wbuf);
+ wbuf=(EBCDIC_OUTBUFF *)OPENSSL_malloc(sizeof(EBCDIC_OUTBUFF) + num);
+
+ wbuf->alloced = num;
+ wbuf->buff[0] = '\0';
+
+ b->ptr=(char *)wbuf;
+ }
+
+ ebcdic2ascii(wbuf->buff, in, inl);
+
+ ret=BIO_write(b->next_bio, wbuf->buff, inl);
+
+ return(ret);
+}
+
+static long ebcdic_ctrl(BIO *b, int cmd, long num, void *ptr)
+{
+ long ret;
+
+ if (b->next_bio == NULL) return(0);
+ switch (cmd)
+ {
+ case BIO_CTRL_DUP:
+ ret=0L;
+ break;
+ default:
+ ret=BIO_ctrl(b->next_bio,cmd,num,ptr);
+ break;
+ }
+ return(ret);
+}
+
+static int ebcdic_gets(BIO *bp, char *buf, int size)
+{
+ int i, ret=0;
+ if (bp->next_bio == NULL) return(0);
+/* return(BIO_gets(bp->next_bio,buf,size));*/
+ for (i=0; i<size-1; ++i)
+ {
+ ret = ebcdic_read(bp,&buf[i],1);
+ if (ret <= 0)
+ break;
+ else if (buf[i] == '\n')
+ {
+ ++i;
+ break;
+ }
+ }
+ if (i < size)
+ buf[i] = '\0';
+ return (ret < 0 && i == 0) ? ret : i;
+}
+
+static int ebcdic_puts(BIO *bp, const char *str)
+{
+ if (bp->next_bio == NULL) return(0);
+ return ebcdic_write(bp, str, strlen(str));
+}
+#endif
+
+#ifndef OPENSSL_NO_TLSEXT
+
+/* This is a context that we pass to callbacks */
+typedef struct tlsextctx_st {
+ char * servername;
+ BIO * biodebug;
+ int extension_error;
+} tlsextctx;
+
+
+static int MS_CALLBACK ssl_servername_cb(SSL *s, int *ad, void *arg)
+ {
+ tlsextctx * p = (tlsextctx *) arg;
+ const char * servername = SSL_get_servername(s, TLSEXT_NAMETYPE_host_name);
+ if (servername && p->biodebug)
+ BIO_printf(p->biodebug,"Hostname in TLS extension: \"%s\"\n",servername);
+
+ if (!p->servername)
+ return SSL_TLSEXT_ERR_NOACK;
+
+ if (servername)
+ {
+ if (strcmp(servername,p->servername))
+ return p->extension_error;
+ if (ctx2)
+ {
+ BIO_printf(p->biodebug,"Swiching server context.\n");
+ SSL_set_SSL_CTX(s,ctx2);
+ }
+ }
+ return SSL_TLSEXT_ERR_OK;
+}
+
+/* Structure passed to cert status callback */
+
+typedef struct tlsextstatusctx_st {
+ /* Default responder to use */
+ char *host, *path, *port;
+ int use_ssl;
+ int timeout;
+ BIO *err;
+ int verbose;
+} tlsextstatusctx;
+
+static tlsextstatusctx tlscstatp = {NULL, NULL, NULL, 0, -1, NULL, 0};
+
+/* Certificate Status callback. This is called when a client includes a
+ * certificate status request extension.
+ *
+ * This is a simplified version. It examines certificates each time and
+ * makes one OCSP responder query for each request.
+ *
+ * A full version would store details such as the OCSP certificate IDs and
+ * minimise the number of OCSP responses by caching them until they were
+ * considered "expired".
+ */
+
+static int cert_status_cb(SSL *s, void *arg)
+ {
+ tlsextstatusctx *srctx = arg;
+ BIO *err = srctx->err;
+ char *host, *port, *path;
+ int use_ssl;
+ unsigned char *rspder = NULL;
+ int rspderlen;
+ STACK *aia = NULL;
+ X509 *x = NULL;
+ X509_STORE_CTX inctx;
+ X509_OBJECT obj;
+ OCSP_REQUEST *req = NULL;
+ OCSP_RESPONSE *resp = NULL;
+ OCSP_CERTID *id = NULL;
+ STACK_OF(X509_EXTENSION) *exts;
+ int ret = SSL_TLSEXT_ERR_NOACK;
+ int i;
+#if 0
+STACK_OF(OCSP_RESPID) *ids;
+SSL_get_tlsext_status_ids(s, &ids);
+BIO_printf(err, "cert_status: received %d ids\n", sk_OCSP_RESPID_num(ids));
+#endif
+ if (srctx->verbose)
+ BIO_puts(err, "cert_status: callback called\n");
+ /* Build up OCSP query from server certificate */
+ x = SSL_get_certificate(s);
+ aia = X509_get1_ocsp(x);
+ if (aia)
+ {
+ if (!OCSP_parse_url(sk_value(aia, 0),
+ &host, &port, &path, &use_ssl))
+ {
+ BIO_puts(err, "cert_status: can't parse AIA URL\n");
+ goto err;
+ }
+ if (srctx->verbose)
+ BIO_printf(err, "cert_status: AIA URL: %s\n",
+ sk_value(aia, 0));
+ }
+ else
+ {
+ if (!srctx->host)
+ {
+ BIO_puts(srctx->err, "cert_status: no AIA and no default responder URL\n");
+ goto done;
+ }
+ host = srctx->host;
+ path = srctx->path;
+ port = srctx->port;
+ use_ssl = srctx->use_ssl;
+ }
+
+ if (!X509_STORE_CTX_init(&inctx,
+ SSL_CTX_get_cert_store(SSL_get_SSL_CTX(s)),
+ NULL, NULL))
+ goto err;
+ if (X509_STORE_get_by_subject(&inctx,X509_LU_X509,
+ X509_get_issuer_name(x),&obj) <= 0)
+ {
+ BIO_puts(err, "cert_status: Can't retrieve issuer certificate.\n");
+ X509_STORE_CTX_cleanup(&inctx);
+ goto done;
+ }
+ req = OCSP_REQUEST_new();
+ if (!req)
+ goto err;
+ id = OCSP_cert_to_id(NULL, x, obj.data.x509);
+ X509_free(obj.data.x509);
+ X509_STORE_CTX_cleanup(&inctx);
+ if (!id)
+ goto err;
+ if (!OCSP_request_add0_id(req, id))
+ goto err;
+ id = NULL;
+ /* Add any extensions to the request */
+ SSL_get_tlsext_status_exts(s, &exts);
+ for (i = 0; i < sk_X509_EXTENSION_num(exts); i++)
+ {
+ X509_EXTENSION *ext = sk_X509_EXTENSION_value(exts, i);
+ if (!OCSP_REQUEST_add_ext(req, ext, -1))
+ goto err;
+ }
+ resp = process_responder(err, req, host, path, port, use_ssl,
+ srctx->timeout);
+ if (!resp)
+ {
+ BIO_puts(err, "cert_status: error querying responder\n");
+ goto done;
+ }
+ rspderlen = i2d_OCSP_RESPONSE(resp, &rspder);
+ if (rspderlen <= 0)
+ goto err;
+ SSL_set_tlsext_status_ocsp_resp(s, rspder, rspderlen);
+ if (srctx->verbose)
+ {
+ BIO_puts(err, "cert_status: ocsp response sent:\n");
+ OCSP_RESPONSE_print(err, resp, 2);
+ }
+ ret = SSL_TLSEXT_ERR_OK;
+ done:
+ if (ret != SSL_TLSEXT_ERR_OK)
+ ERR_print_errors(err);
+ if (aia)
+ {
+ OPENSSL_free(host);
+ OPENSSL_free(path);
+ OPENSSL_free(port);
+ X509_email_free(aia);
+ }
+ if (id)
+ OCSP_CERTID_free(id);
+ if (req)
+ OCSP_REQUEST_free(req);
+ if (resp)
+ OCSP_RESPONSE_free(resp);
+ return ret;
+ err:
+ ret = SSL_TLSEXT_ERR_ALERT_FATAL;
+ goto done;
+ }
+#endif
+
+int MAIN(int, char **);