Upgraded to openssl-1.0.2

1 files changed, 1492 insertions, 780 deletions

diff --git a/openssl/apps/s_cb.c b/openssl/apps/s_cb.c
index 146a96079..d5756c0ff 100644
--- a/openssl/apps/s_cb.c
+++ b/openssl/apps/s_cb.c
@@ -5,21 +5,21 @@
  * This package is an SSL implementation written
  * by Eric Young (eay@cryptsoft.com).
  * The implementation was written so as to conform with Netscapes SSL.
- * 
+ *
  * This library is free for commercial and non-commercial use as long as
  * the following conditions are aheared to.  The following conditions
  * apply to all code found in this distribution, be it the RC4, RSA,
  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  * included with this distribution is covered by the same copyright terms
  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- * 
+ *
  * Copyright remains Eric Young's, and as such any Copyright notices in
  * the code are not to be removed.
  * If this package is used in a product, Eric Young should be given attribution
  * as the author of the parts of the library used.
  * This can be in the form of a textual message at program startup or
  * in documentation (online or textual) provided with the package.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ -34,10 +34,10 @@
  *     Eric Young (eay@cryptsoft.com)"
  *    The word 'cryptographic' can be left out if the rouines from the library
  *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from 
+ * 4. If you include any Windows specific code (or a derivative thereof) from
  *    the apps directory (application code) you must include an acknowledgement:
  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -49,7 +49,7 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- * 
+ *
  * The licence and distribution terms for any publically available version or
  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  * copied and put under another distribution licence
@@ -63,7 +63,7 @@
  * are met:
  *
  * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer. 
+ *    notice, this list of conditions and the following disclaimer.
  *
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in
@@ -122,813 +122,1525 @@
 #include <openssl/ssl.h>
 #include "s_apps.h"
 
-#define	COOKIE_SECRET_LENGTH	16
+#define COOKIE_SECRET_LENGTH    16
 
-int verify_depth=0;
-int verify_error=X509_V_OK;
-int verify_return_error=0;
+int verify_depth = 0;
+int verify_quiet = 0;
+int verify_error = X509_V_OK;
+int verify_return_error = 0;
 unsigned char cookie_secret[COOKIE_SECRET_LENGTH];
-int cookie_initialized=0;
+int cookie_initialized = 0;
 
 int MS_CALLBACK verify_callback(int ok, X509_STORE_CTX *ctx)
-	{
-	X509 *err_cert;
-	int err,depth;
-
-	err_cert=X509_STORE_CTX_get_current_cert(ctx);
-	err=	X509_STORE_CTX_get_error(ctx);
-	depth=	X509_STORE_CTX_get_error_depth(ctx);
-
-	BIO_printf(bio_err,"depth=%d ",depth);
-	if (err_cert)
-		{
-		X509_NAME_print_ex(bio_err, X509_get_subject_name(err_cert),
-					0, XN_FLAG_ONELINE);
-		BIO_puts(bio_err, "\n");
-		}
-	else
-		BIO_puts(bio_err, "<no cert>\n");
-	if (!ok)
-		{
-		BIO_printf(bio_err,"verify error:num=%d:%s\n",err,
-			X509_verify_cert_error_string(err));
-		if (verify_depth >= depth)
-			{
-			if (!verify_return_error)
-				ok=1;
-			verify_error=X509_V_OK;
-			}
-		else
-			{
-			ok=0;
-			verify_error=X509_V_ERR_CERT_CHAIN_TOO_LONG;
-			}
-		}
-	switch (err)
-		{
-	case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
-		BIO_puts(bio_err,"issuer= ");
-		X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
-					0, XN_FLAG_ONELINE);
-		BIO_puts(bio_err, "\n");
-		break;
-	case X509_V_ERR_CERT_NOT_YET_VALID:
-	case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
-		BIO_printf(bio_err,"notBefore=");
-		ASN1_TIME_print(bio_err,X509_get_notBefore(err_cert));
-		BIO_printf(bio_err,"\n");
-		break;
-	case X509_V_ERR_CERT_HAS_EXPIRED:
-	case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
-		BIO_printf(bio_err,"notAfter=");
-		ASN1_TIME_print(bio_err,X509_get_notAfter(err_cert));
-		BIO_printf(bio_err,"\n");
-		break;
-	case X509_V_ERR_NO_EXPLICIT_POLICY:
-		policies_print(bio_err, ctx);
-		break;
-		}
-	if (err == X509_V_OK && ok == 2)
-		policies_print(bio_err, ctx);
-
-	BIO_printf(bio_err,"verify return:%d\n",ok);
-	return(ok);
-	}
+{
+    X509 *err_cert;
+    int err, depth;
+
+    err_cert = X509_STORE_CTX_get_current_cert(ctx);
+    err = X509_STORE_CTX_get_error(ctx);
+    depth = X509_STORE_CTX_get_error_depth(ctx);
+
+    if (!verify_quiet || !ok) {
+        BIO_printf(bio_err, "depth=%d ", depth);
+        if (err_cert) {
+            X509_NAME_print_ex(bio_err,
+                               X509_get_subject_name(err_cert),
+                               0, XN_FLAG_ONELINE);
+            BIO_puts(bio_err, "\n");
+        } else
+            BIO_puts(bio_err, "<no cert>\n");
+    }
+    if (!ok) {
+        BIO_printf(bio_err, "verify error:num=%d:%s\n", err,
+                   X509_verify_cert_error_string(err));
+        if (verify_depth >= depth) {
+            if (!verify_return_error)
+                ok = 1;
+            verify_error = X509_V_OK;
+        } else {
+            ok = 0;
+            verify_error = X509_V_ERR_CERT_CHAIN_TOO_LONG;
+        }
+    }
+    switch (err) {
+    case X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT:
+        BIO_puts(bio_err, "issuer= ");
+        X509_NAME_print_ex(bio_err, X509_get_issuer_name(err_cert),
+                           0, XN_FLAG_ONELINE);
+        BIO_puts(bio_err, "\n");
+        break;
+    case X509_V_ERR_CERT_NOT_YET_VALID:
+    case X509_V_ERR_ERROR_IN_CERT_NOT_BEFORE_FIELD:
+        BIO_printf(bio_err, "notBefore=");
+        ASN1_TIME_print(bio_err, X509_get_notBefore(err_cert));
+        BIO_printf(bio_err, "\n");
+        break;
+    case X509_V_ERR_CERT_HAS_EXPIRED:
+    case X509_V_ERR_ERROR_IN_CERT_NOT_AFTER_FIELD:
+        BIO_printf(bio_err, "notAfter=");
+        ASN1_TIME_print(bio_err, X509_get_notAfter(err_cert));
+        BIO_printf(bio_err, "\n");
+        break;
+    case X509_V_ERR_NO_EXPLICIT_POLICY:
+        if (!verify_quiet)
+            policies_print(bio_err, ctx);
+        break;
+    }
+    if (err == X509_V_OK && ok == 2 && !verify_quiet)
+        policies_print(bio_err, ctx);
+    if (ok && !verify_quiet)
+        BIO_printf(bio_err, "verify return:%d\n", ok);
+    return (ok);
+}
 
 int set_cert_stuff(SSL_CTX *ctx, char *cert_file, char *key_file)
-	{
-	if (cert_file != NULL)
-		{
-		/*
-		SSL *ssl;
-		X509 *x509;
-		*/
-
-		if (SSL_CTX_use_certificate_file(ctx,cert_file,
-			SSL_FILETYPE_PEM) <= 0)
-			{
-			BIO_printf(bio_err,"unable to get certificate from '%s'\n",cert_file);
-			ERR_print_errors(bio_err);
-			return(0);
-			}
-		if (key_file == NULL) key_file=cert_file;
-		if (SSL_CTX_use_PrivateKey_file(ctx,key_file,
-			SSL_FILETYPE_PEM) <= 0)
-			{
-			BIO_printf(bio_err,"unable to get private key from '%s'\n",key_file);
-			ERR_print_errors(bio_err);
-			return(0);
-			}
-
-		/*
-		In theory this is no longer needed 
-		ssl=SSL_new(ctx);
-		x509=SSL_get_certificate(ssl);
-
-		if (x509 != NULL) {
-			EVP_PKEY *pktmp;
-			pktmp = X509_get_pubkey(x509);
-			EVP_PKEY_copy_parameters(pktmp,
-						SSL_get_privatekey(ssl));
-			EVP_PKEY_free(pktmp);
-		}
-		SSL_free(ssl);
-		*/
-
-		/* If we are using DSA, we can copy the parameters from
-		 * the private key */
-
-
-		/* Now we know that a key and cert have been set against
-		 * the SSL context */
-		if (!SSL_CTX_check_private_key(ctx))
-			{
-			BIO_printf(bio_err,"Private key does not match the certificate public key\n");
-			return(0);
-			}
-		}
-	return(1);
-	}
-
-int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key)
-	{
-	if (cert ==  NULL)
-		return 1;
-	if (SSL_CTX_use_certificate(ctx,cert) <= 0)
-		{
-		BIO_printf(bio_err,"error setting certificate\n");
-		ERR_print_errors(bio_err);
-		return 0;
-		}
-	if (SSL_CTX_use_PrivateKey(ctx,key) <= 0)
-		{
-		BIO_printf(bio_err,"error setting private key\n");
-		ERR_print_errors(bio_err);
-		return 0;
-		}
-
-		
-		/* Now we know that a key and cert have been set against
-		 * the SSL context */
-	if (!SSL_CTX_check_private_key(ctx))
-		{
-		BIO_printf(bio_err,"Private key does not match the certificate public key\n");
-		return 0;
-		}
-	return 1;
-	}
+{
+    if (cert_file != NULL) {
+        /*-
+        SSL *ssl;
+        X509 *x509;
+        */
+
+        if (SSL_CTX_use_certificate_file(ctx, cert_file,
+                                         SSL_FILETYPE_PEM) <= 0) {
+            BIO_printf(bio_err, "unable to get certificate from '%s'\n",
+                       cert_file);
+            ERR_print_errors(bio_err);
+            return (0);
+        }
+        if (key_file == NULL)
+            key_file = cert_file;
+        if (SSL_CTX_use_PrivateKey_file(ctx, key_file, SSL_FILETYPE_PEM) <= 0) {
+            BIO_printf(bio_err, "unable to get private key from '%s'\n",
+                       key_file);
+            ERR_print_errors(bio_err);
+            return (0);
+        }
+
+        /*-
+        In theory this is no longer needed
+        ssl=SSL_new(ctx);
+        x509=SSL_get_certificate(ssl);
+
+        if (x509 != NULL) {
+                EVP_PKEY *pktmp;
+                pktmp = X509_get_pubkey(x509);
+                EVP_PKEY_copy_parameters(pktmp,
+                                        SSL_get_privatekey(ssl));
+                EVP_PKEY_free(pktmp);
+        }
+        SSL_free(ssl);
+        */
+
+        /*
+         * If we are using DSA, we can copy the parameters from the private
+         * key
+         */
+
+        /*
+         * Now we know that a key and cert have been set against the SSL
+         * context
+         */
+        if (!SSL_CTX_check_private_key(ctx)) {
+            BIO_printf(bio_err,
+                       "Private key does not match the certificate public key\n");
+            return (0);
+        }
+    }
+    return (1);
+}
+
+int set_cert_key_stuff(SSL_CTX *ctx, X509 *cert, EVP_PKEY *key,
+                       STACK_OF(X509) *chain, int build_chain)
+{
+    int chflags = chain ? SSL_BUILD_CHAIN_FLAG_CHECK : 0;
+    if (cert == NULL)
+        return 1;
+    if (SSL_CTX_use_certificate(ctx, cert) <= 0) {
+        BIO_printf(bio_err, "error setting certificate\n");
+        ERR_print_errors(bio_err);
+        return 0;
+    }
+
+    if (SSL_CTX_use_PrivateKey(ctx, key) <= 0) {
+        BIO_printf(bio_err, "error setting private key\n");
+        ERR_print_errors(bio_err);
+        return 0;
+    }
+
+    /*
+     * Now we know that a key and cert have been set against the SSL context
+     */
+    if (!SSL_CTX_check_private_key(ctx)) {
+        BIO_printf(bio_err,
+                   "Private key does not match the certificate public key\n");
+        return 0;
+    }
+    if (chain && !SSL_CTX_set1_chain(ctx, chain)) {
+        BIO_printf(bio_err, "error setting certificate chain\n");
+        ERR_print_errors(bio_err);
+        return 0;
+    }
+    if (build_chain && !SSL_CTX_build_cert_chain(ctx, chflags)) {
+        BIO_printf(bio_err, "error building certificate chain\n");
+        ERR_print_errors(bio_err);
+        return 0;
+    }
+    return 1;
+}
+
+static void ssl_print_client_cert_types(BIO *bio, SSL *s)
+{
+    const unsigned char *p;
+    int i;
+    int cert_type_num = SSL_get0_certificate_types(s, &p);
+    if (!cert_type_num)
+        return;
+    BIO_puts(bio, "Client Certificate Types: ");
+    for (i = 0; i < cert_type_num; i++) {
+        unsigned char cert_type = p[i];
+        char *cname;
+        switch (cert_type) {
+        case TLS_CT_RSA_SIGN:
+            cname = "RSA sign";
+            break;
+
+        case TLS_CT_DSS_SIGN:
+            cname = "DSA sign";
+            break;
+
+        case TLS_CT_RSA_FIXED_DH:
+            cname = "RSA fixed DH";
+            break;
+
+        case TLS_CT_DSS_FIXED_DH:
+            cname = "DSS fixed DH";
+            break;
+
+        case TLS_CT_ECDSA_SIGN:
+            cname = "ECDSA sign";
+            break;
+
+        case TLS_CT_RSA_FIXED_ECDH:
+            cname = "RSA fixed ECDH";
+            break;
+
+        case TLS_CT_ECDSA_FIXED_ECDH:
+            cname = "ECDSA fixed ECDH";
+            break;
+
+        case TLS_CT_GOST94_SIGN:
+            cname = "GOST94 Sign";
+            break;
+
+        case TLS_CT_GOST01_SIGN:
+            cname = "GOST01 Sign";
+            break;
+
+        default:
+            cname = NULL;
+        }
+
+        if (i)
+            BIO_puts(bio, ", ");
+
+        if (cname)
+            BIO_puts(bio, cname);
+        else
+            BIO_printf(bio, "UNKNOWN (%d),", cert_type);
+    }
+    BIO_puts(bio, "\n");
+}
+
+static int do_print_sigalgs(BIO *out, SSL *s, int shared)
+{
+    int i, nsig, client;
+    client = SSL_is_server(s) ? 0 : 1;
+    if (shared)
+        nsig = SSL_get_shared_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
+    else
+        nsig = SSL_get_sigalgs(s, -1, NULL, NULL, NULL, NULL, NULL);
+    if (nsig == 0)
+        return 1;
+
+    if (shared)
+        BIO_puts(out, "Shared ");
+
+    if (client)
+        BIO_puts(out, "Requested ");
+    BIO_puts(out, "Signature Algorithms: ");
+    for (i = 0; i < nsig; i++) {
+        int hash_nid, sign_nid;
+        unsigned char rhash, rsign;
+        const char *sstr = NULL;
+        if (shared)
+            SSL_get_shared_sigalgs(s, i, &sign_nid, &hash_nid, NULL,
+                                   &rsign, &rhash);
+        else
+            SSL_get_sigalgs(s, i, &sign_nid, &hash_nid, NULL, &rsign, &rhash);
+        if (i)
+            BIO_puts(out, ":");
+        if (sign_nid == EVP_PKEY_RSA)
+            sstr = "RSA";
+        else if (sign_nid == EVP_PKEY_DSA)
+            sstr = "DSA";
+        else if (sign_nid == EVP_PKEY_EC)
+            sstr = "ECDSA";
+        if (sstr)
+            BIO_printf(out, "%s+", sstr);
+        else
+            BIO_printf(out, "0x%02X+", (int)rsign);
+        if (hash_nid != NID_undef)
+            BIO_printf(out, "%s", OBJ_nid2sn(hash_nid));
+        else
+            BIO_printf(out, "0x%02X", (int)rhash);
+    }
+    BIO_puts(out, "\n");
+    return 1;
+}
+
+int ssl_print_sigalgs(BIO *out, SSL *s)
+{
+    int mdnid;
+    if (!SSL_is_server(s))
+        ssl_print_client_cert_types(out, s);
+    do_print_sigalgs(out, s, 0);
+    do_print_sigalgs(out, s, 1);
+    if (SSL_get_peer_signature_nid(s, &mdnid))
+        BIO_printf(out, "Peer signing digest: %s\n", OBJ_nid2sn(mdnid));
+    return 1;
+}
+
+#ifndef OPENSSL_NO_EC
+int ssl_print_point_formats(BIO *out, SSL *s)
+{
+    int i, nformats;
+    const char *pformats;
+    nformats = SSL_get0_ec_point_formats(s, &pformats);
+    if (nformats <= 0)
+        return 1;
+    BIO_puts(out, "Supported Elliptic Curve Point Formats: ");
+    for (i = 0; i < nformats; i++, pformats++) {
+        if (i)
+            BIO_puts(out, ":");
+        switch (*pformats) {
+        case TLSEXT_ECPOINTFORMAT_uncompressed:
+            BIO_puts(out, "uncompressed");
+            break;
+
+        case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_prime:
+            BIO_puts(out, "ansiX962_compressed_prime");
+            break;
+
+        case TLSEXT_ECPOINTFORMAT_ansiX962_compressed_char2:
+            BIO_puts(out, "ansiX962_compressed_char2");
+            break;
+
+        default:
+            BIO_printf(out, "unknown(%d)", (int)*pformats);
+            break;
+
+        }
+    }
+    if (nformats <= 0)
+        BIO_puts(out, "NONE");
+    BIO_puts(out, "\n");
+    return 1;
+}
+
+int ssl_print_curves(BIO *out, SSL *s, int noshared)
+{
+    int i, ncurves, *curves, nid;
+    const char *cname;
+    ncurves = SSL_get1_curves(s, NULL);
+    if (ncurves <= 0)
+        return 1;
+    curves = OPENSSL_malloc(ncurves * sizeof(int));
+    SSL_get1_curves(s, curves);
+
+    BIO_puts(out, "Supported Elliptic Curves: ");
+    for (i = 0; i < ncurves; i++) {
+        if (i)
+            BIO_puts(out, ":");
+        nid = curves[i];
+        /* If unrecognised print out hex version */
+        if (nid & TLSEXT_nid_unknown)
+            BIO_printf(out, "0x%04X", nid & 0xFFFF);
+        else {
+            /* Use NIST name for curve if it exists */
+            cname = EC_curve_nid2nist(nid);
+            if (!cname)
+                cname = OBJ_nid2sn(nid);
+            BIO_printf(out, "%s", cname);
+        }
+    }
+    if (ncurves == 0)
+        BIO_puts(out, "NONE");
+    OPENSSL_free(curves);
+    if (noshared) {
+        BIO_puts(out, "\n");
+        return 1;
+    }
+    BIO_puts(out, "\nShared Elliptic curves: ");
+    ncurves = SSL_get_shared_curve(s, -1);
+    for (i = 0; i < ncurves; i++) {
+        if (i)
+            BIO_puts(out, ":");
+        nid = SSL_get_shared_curve(s, i);
+        cname = EC_curve_nid2nist(nid);
+        if (!cname)
+            cname = OBJ_nid2sn(nid);
+        BIO_printf(out, "%s", cname);
+    }
+    if (ncurves == 0)
+        BIO_puts(out, "NONE");
+    BIO_puts(out, "\n");
+    return 1;
+}
+#endif
+int ssl_print_tmp_key(BIO *out, SSL *s)
+{
+    EVP_PKEY *key;
+    if (!SSL_get_server_tmp_key(s, &key))
+        return 1;
+    BIO_puts(out, "Server Temp Key: ");
+    switch (EVP_PKEY_id(key)) {
+    case EVP_PKEY_RSA:
+        BIO_printf(out, "RSA, %d bits\n", EVP_PKEY_bits(key));
+        break;
+
+    case EVP_PKEY_DH:
+        BIO_printf(out, "DH, %d bits\n", EVP_PKEY_bits(key));
+        break;
+#ifndef OPENSSL_NO_ECDH
+    case EVP_PKEY_EC:
+        {
+            EC_KEY *ec = EVP_PKEY_get1_EC_KEY(key);
+            int nid;
+            const char *cname;
+            nid = EC_GROUP_get_curve_name(EC_KEY_get0_group(ec));
+            EC_KEY_free(ec);
+            cname = EC_curve_nid2nist(nid);
+            if (!cname)
+                cname = OBJ_nid2sn(nid);
+            BIO_printf(out, "ECDH, %s, %d bits\n", cname, EVP_PKEY_bits(key));
+        }
+#endif
+    }
+    EVP_PKEY_free(key);
+    return 1;
+}
 
 long MS_CALLBACK bio_dump_callback(BIO *bio, int cmd, const char *argp,
-				   int argi, long argl, long ret)
-	{
-	BIO *out;
-
-	out=(BIO *)BIO_get_callback_arg(bio);
-	if (out == NULL) return(ret);
-
-	if (cmd == (BIO_CB_READ|BIO_CB_RETURN))
-		{
-		BIO_printf(out,"read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
- 			(void *)bio,argp,(unsigned long)argi,ret,ret);
-		BIO_dump(out,argp,(int)ret);
-		return(ret);
-		}
-	else if (cmd == (BIO_CB_WRITE|BIO_CB_RETURN))
-		{
-		BIO_printf(out,"write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
-			(void *)bio,argp,(unsigned long)argi,ret,ret);
-		BIO_dump(out,argp,(int)ret);
-		}
-	return(ret);
-	}
+                                   int argi, long argl, long ret)
+{
+    BIO *out;
+
+    out = (BIO *)BIO_get_callback_arg(bio);
+    if (out == NULL)
+        return (ret);
+
+    if (cmd == (BIO_CB_READ | BIO_CB_RETURN)) {
+        BIO_printf(out, "read from %p [%p] (%lu bytes => %ld (0x%lX))\n",
+                   (void *)bio, argp, (unsigned long)argi, ret, ret);
+        BIO_dump(out, argp, (int)ret);
+        return (ret);
+    } else if (cmd == (BIO_CB_WRITE | BIO_CB_RETURN)) {
+        BIO_printf(out, "write to %p [%p] (%lu bytes => %ld (0x%lX))\n",
+                   (void *)bio, argp, (unsigned long)argi, ret, ret);
+        BIO_dump(out, argp, (int)ret);
+    }
+    return (ret);
+}
 
 void MS_CALLBACK apps_ssl_info_callback(const SSL *s, int where, int ret)
-	{
-	const char *str;
-	int w;
-
-	w=where& ~SSL_ST_MASK;
-
-	if (w & SSL_ST_CONNECT) str="SSL_connect";
-	else if (w & SSL_ST_ACCEPT) str="SSL_accept";
-	else str="undefined";
-
-	if (where & SSL_CB_LOOP)
-		{
-		BIO_printf(bio_err,"%s:%s\n",str,SSL_state_string_long(s));
-		}
-	else if (where & SSL_CB_ALERT)
-		{
-		str=(where & SSL_CB_READ)?"read":"write";
-		BIO_printf(bio_err,"SSL3 alert %s:%s:%s\n",
-			str,
-			SSL_alert_type_string_long(ret),
-			SSL_alert_desc_string_long(ret));
-		}
-	else if (where & SSL_CB_EXIT)
-		{
-		if (ret == 0)
-			BIO_printf(bio_err,"%s:failed in %s\n",
-				str,SSL_state_string_long(s));
-		else if (ret < 0)
-			{
-			BIO_printf(bio_err,"%s:error in %s\n",
-				str,SSL_state_string_long(s));
-			}
-		}
-	}
-
-
-void MS_CALLBACK msg_cb(int write_p, int version, int content_type, const void *buf, size_t len, SSL *ssl, void *arg)
-	{
-	BIO *bio = arg;
-	const char *str_write_p, *str_version, *str_content_type = "", *str_details1 = "", *str_details2= "";
-	
-	str_write_p = write_p ? ">>>" : "<<<";
-
-	switch (version)
-		{
-	case SSL2_VERSION:
-		str_version = "SSL 2.0";
-		break;
-	case SSL3_VERSION:
-		str_version = "SSL 3.0 ";
-		break;
-	case TLS1_VERSION:
-		str_version = "TLS 1.0 ";
-		break;
-	case TLS1_1_VERSION:
-		str_version = "TLS 1.1 ";
-		break;
-	case TLS1_2_VERSION:
-		str_version = "TLS 1.2 ";
-		break;
-	case DTLS1_VERSION:
-		str_version = "DTLS 1.0 ";
-		break;
-	case DTLS1_BAD_VER:
-		str_version = "DTLS 1.0 (bad) ";
-		break;
-	default:
-		str_version = "???";
-		}
-
-	if (version == SSL2_VERSION)
-		{
-		str_details1 = "???";
-
-		if (len > 0)
-			{
-			switch (((const unsigned char*)buf)[0])
-				{
-				case 0:
-					str_details1 = ", ERROR:";
-					str_details2 = " ???";
-					if (len >= 3)
-						{
-						unsigned err = (((const unsigned char*)buf)[1]<<8) + ((const unsigned char*)buf)[2];
-						
-						switch (err)
-							{
-						case 0x0001:
-							str_details2 = " NO-CIPHER-ERROR";
-							break;
-						case 0x0002:
-							str_details2 = " NO-CERTIFICATE-ERROR";
-							break;
-						case 0x0004:
-							str_details2 = " BAD-CERTIFICATE-ERROR";
-							break;
-						case 0x0006:
-							str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR";
-							break;
-							}
-						}
-
-					break;
-				case 1:
-					str_details1 = ", CLIENT-HELLO";
-					break;
-				case 2:
-					str_details1 = ", CLIENT-MASTER-KEY";
-					break;
-				case 3:
-					str_details1 = ", CLIENT-FINISHED";
-					break;
-				case 4:
-					str_details1 = ", SERVER-HELLO";
-					break;
-				case 5:
-					str_details1 = ", SERVER-VERIFY";
-					break;
-				case 6:
-					str_details1 = ", SERVER-FINISHED";
-					break;
-				case 7:
-					str_details1 = ", REQUEST-CERTIFICATE";
-					break;
-				case 8:
-					str_details1 = ", CLIENT-CERTIFICATE";
-					break;
-				}
-			}
-		}
-
-	if (version == SSL3_VERSION ||
-	    version == TLS1_VERSION ||
-	    version == TLS1_1_VERSION ||
-	    version == TLS1_2_VERSION ||
-	    version == DTLS1_VERSION ||
-	    version == DTLS1_BAD_VER)
-		{
-		switch (content_type)
-			{
-		case 20:
-			str_content_type = "ChangeCipherSpec";
-			break;
-		case 21:
-			str_content_type = "Alert";
-			break;
-		case 22:
-			str_content_type = "Handshake";
-			break;
-			}
-
-		if (content_type == 21) /* Alert */
-			{
-			str_details1 = ", ???";
-			
-			if (len == 2)
-				{
-				switch (((const unsigned char*)buf)[0])
-					{
-				case 1:
-					str_details1 = ", warning";
-					break;
-				case 2:
-					str_details1 = ", fatal";
-					break;
-					}
-
-				str_details2 = " ???";
-				switch (((const unsigned char*)buf)[1])
-					{
-				case 0:
-					str_details2 = " close_notify";
-					break;
-				case 10:
-					str_details2 = " unexpected_message";
-					break;
-				case 20:
-					str_details2 = " bad_record_mac";
-					break;
-				case 21:
-					str_details2 = " decryption_failed";
-					break;
-				case 22:
-					str_details2 = " record_overflow";
-					break;
-				case 30:
-					str_details2 = " decompression_failure";
-					break;
-				case 40:
-					str_details2 = " handshake_failure";
-					break;
-				case 42:
-					str_details2 = " bad_certificate";
-					break;
-				case 43:
-					str_details2 = " unsupported_certificate";
-					break;
-				case 44:
-					str_details2 = " certificate_revoked";
-					break;
-				case 45:
-					str_details2 = " certificate_expired";
-					break;
-				case 46:
-					str_details2 = " certificate_unknown";
-					break;
-				case 47:
-					str_details2 = " illegal_parameter";
-					break;
-				case 48:
-					str_details2 = " unknown_ca";
-					break;
-				case 49:
-					str_details2 = " access_denied";
-					break;
-				case 50:
-					str_details2 = " decode_error";
-					break;
-				case 51:
-					str_details2 = " decrypt_error";
-					break;
-				case 60:
-					str_details2 = " export_restriction";
-					break;
-				case 70:
-					str_details2 = " protocol_version";
-					break;
-				case 71:
-					str_details2 = " insufficient_security";
-					break;
-				case 80:
-					str_details2 = " internal_error";
-					break;
-				case 90:
-					str_details2 = " user_canceled";
-					break;
-				case 100:
-					str_details2 = " no_renegotiation";
-					break;
-				case 110:
-					str_details2 = " unsupported_extension";
-					break;
-				case 111:
-					str_details2 = " certificate_unobtainable";
-					break;
-				case 112:
-					str_details2 = " unrecognized_name";
-					break;
-				case 113:
-					str_details2 = " bad_certificate_status_response";
-					break;
-				case 114:
-					str_details2 = " bad_certificate_hash_value";
-					break;
-				case 115:
-					str_details2 = " unknown_psk_identity";
-					break;
-					}
-				}
-			}
-		
-		if (content_type == 22) /* Handshake */
-			{
-			str_details1 = "???";
-
-			if (len > 0)
-				{
-				switch (((const unsigned char*)buf)[0])
-					{
-				case 0:
-					str_details1 = ", HelloRequest";
-					break;
-				case 1:
-					str_details1 = ", ClientHello";
-					break;
-				case 2:
-					str_details1 = ", ServerHello";
-					break;
-				case 3:
-					str_details1 = ", HelloVerifyRequest";
-					break;
-				case 11:
-					str_details1 = ", Certificate";
-					break;
-				case 12:
-					str_details1 = ", ServerKeyExchange";
-					break;
-				case 13:
-					str_details1 = ", CertificateRequest";
-					break;
-				case 14:
-					str_details1 = ", ServerHelloDone";
-					break;
-				case 15:
-					str_details1 = ", CertificateVerify";
-					break;
-				case 16:
-					str_details1 = ", ClientKeyExchange";
-					break;
-				case 20:
-					str_details1 = ", Finished";
-					break;
-					}
-				}
-			}
-
+{
+    const char *str;
+    int w;
+
+    w = where & ~SSL_ST_MASK;
+
+    if (w & SSL_ST_CONNECT)
+        str = "SSL_connect";
+    else if (w & SSL_ST_ACCEPT)
+        str = "SSL_accept";
+    else
+        str = "undefined";
+
+    if (where & SSL_CB_LOOP) {
+        BIO_printf(bio_err, "%s:%s\n", str, SSL_state_string_long(s));
+    } else if (where & SSL_CB_ALERT) {
+        str = (where & SSL_CB_READ) ? "read" : "write";
+        BIO_printf(bio_err, "SSL3 alert %s:%s:%s\n",
+                   str,
+                   SSL_alert_type_string_long(ret),
+                   SSL_alert_desc_string_long(ret));
+    } else if (where & SSL_CB_EXIT) {
+        if (ret == 0)
+            BIO_printf(bio_err, "%s:failed in %s\n",
+                       str, SSL_state_string_long(s));
+        else if (ret < 0) {
+            BIO_printf(bio_err, "%s:error in %s\n",
+                       str, SSL_state_string_long(s));
+        }
+    }
+}
+
+void MS_CALLBACK msg_cb(int write_p, int version, int content_type,
+                        const void *buf, size_t len, SSL *ssl, void *arg)
+{
+    BIO *bio = arg;
+    const char *str_write_p, *str_version, *str_content_type =
+        "", *str_details1 = "", *str_details2 = "";
+
+    str_write_p = write_p ? ">>>" : "<<<";
+
+    switch (version) {
+    case SSL2_VERSION:
+        str_version = "SSL 2.0";
+        break;
+    case SSL3_VERSION:
+        str_version = "SSL 3.0 ";
+        break;
+    case TLS1_VERSION:
+        str_version = "TLS 1.0 ";
+        break;
+    case TLS1_1_VERSION:
+        str_version = "TLS 1.1 ";
+        break;
+    case TLS1_2_VERSION:
+        str_version = "TLS 1.2 ";
+        break;
+    case DTLS1_VERSION:
+        str_version = "DTLS 1.0 ";
+        break;
+    case DTLS1_BAD_VER:
+        str_version = "DTLS 1.0 (bad) ";
+        break;
+    default:
+        str_version = "???";
+    }
+
+    if (version == SSL2_VERSION) {
+        str_details1 = "???";
+
+        if (len > 0) {
+            switch (((const unsigned char *)buf)[0]) {
+            case 0:
+                str_details1 = ", ERROR:";
+                str_details2 = " ???";
+                if (len >= 3) {
+                    unsigned err =
+                        (((const unsigned char *)buf)[1] << 8) +
+                        ((const unsigned char *)buf)[2];
+
+                    switch (err) {
+                    case 0x0001:
+                        str_details2 = " NO-CIPHER-ERROR";
+                        break;
+                    case 0x0002:
+                        str_details2 = " NO-CERTIFICATE-ERROR";
+                        break;
+                    case 0x0004:
+                        str_details2 = " BAD-CERTIFICATE-ERROR";
+                        break;
+                    case 0x0006:
+                        str_details2 = " UNSUPPORTED-CERTIFICATE-TYPE-ERROR";
+                        break;
+                    }
+                }
+
+                break;
+            case 1:
+                str_details1 = ", CLIENT-HELLO";
+                break;
+            case 2:
+                str_details1 = ", CLIENT-MASTER-KEY";
+                break;
+            case 3:
+                str_details1 = ", CLIENT-FINISHED";
+                break;
+            case 4:
+                str_details1 = ", SERVER-HELLO";
+                break;
+            case 5:
+                str_details1 = ", SERVER-VERIFY";
+                break;
+            case 6:
+                str_details1 = ", SERVER-FINISHED";
+                break;
+            case 7:
+                str_details1 = ", REQUEST-CERTIFICATE";
+                break;
+            case 8:
+                str_details1 = ", CLIENT-CERTIFICATE";
+                break;
+            }
+        }
+    }
+
+    if (version == SSL3_VERSION ||
+        version == TLS1_VERSION ||
+        version == TLS1_1_VERSION ||
+        version == TLS1_2_VERSION ||
+        version == DTLS1_VERSION || version == DTLS1_BAD_VER) {
+        switch (content_type) {
+        case 20:
+            str_content_type = "ChangeCipherSpec";
+            break;
+        case 21:
+            str_content_type = "Alert";
+            break;
+        case 22:
+            str_content_type = "Handshake";
+            break;
+        }
+
+        if (content_type == 21) { /* Alert */
+            str_details1 = ", ???";
+
+            if (len == 2) {
+                switch (((const unsigned char *)buf)[0]) {
+                case 1:
+                    str_details1 = ", warning";
+                    break;
+                case 2:
+                    str_details1 = ", fatal";
+                    break;
+                }
+
+                str_details2 = " ???";
+                switch (((const unsigned char *)buf)[1]) {
+                case 0:
+                    str_details2 = " close_notify";
+                    break;
+                case 10:
+                    str_details2 = " unexpected_message";
+                    break;
+                case 20:
+                    str_details2 = " bad_record_mac";
+                    break;
+                case 21:
+                    str_details2 = " decryption_failed";
+                    break;
+                case 22:
+                    str_details2 = " record_overflow";
+                    break;
+                case 30:
+                    str_details2 = " decompression_failure";
+                    break;
+                case 40:
+                    str_details2 = " handshake_failure";
+                    break;
+                case 42:
+                    str_details2 = " bad_certificate";
+                    break;
+                case 43:
+                    str_details2 = " unsupported_certificate";
+                    break;
+                case 44:
+                    str_details2 = " certificate_revoked";
+                    break;
+                case 45:
+                    str_details2 = " certificate_expired";
+                    break;
+                case 46:
+                    str_details2 = " certificate_unknown";
+                    break;
+                case 47:
+                    str_details2 = " illegal_parameter";
+                    break;
+                case 48:
+                    str_details2 = " unknown_ca";
+                    break;
+                case 49:
+                    str_details2 = " access_denied";
+                    break;
+                case 50:
+                    str_details2 = " decode_error";
+                    break;
+                case 51:
+                    str_details2 = " decrypt_error";
+                    break;
+                case 60:
+                    str_details2 = " export_restriction";
+                    break;
+                case 70:
+                    str_details2 = " protocol_version";
+                    break;
+                case 71:
+                    str_details2 = " insufficient_security";
+                    break;
+                case 80:
+                    str_details2 = " internal_error";
+                    break;
+                case 90:
+                    str_details2 = " user_canceled";
+                    break;
+                case 100:
+                    str_details2 = " no_renegotiation";
+                    break;
+                case 110:
+                    str_details2 = " unsupported_extension";
+                    break;
+                case 111:
+                    str_details2 = " certificate_unobtainable";
+                    break;
+                case 112:
+                    str_details2 = " unrecognized_name";
+                    break;
+                case 113:
+                    str_details2 = " bad_certificate_status_response";
+                    break;
+                case 114:
+                    str_details2 = " bad_certificate_hash_value";
+                    break;
+                case 115:
+                    str_details2 = " unknown_psk_identity";
+                    break;
+                }
+            }
+        }
+
+        if (content_type == 22) { /* Handshake */
+            str_details1 = "???";
+
+            if (len > 0) {
+                switch (((const unsigned char *)buf)[0]) {
+                case 0:
+                    str_details1 = ", HelloRequest";
+                    break;
+                case 1:
+                    str_details1 = ", ClientHello";
+                    break;
+                case 2:
+                    str_details1 = ", ServerHello";
+                    break;
+                case 3:
+                    str_details1 = ", HelloVerifyRequest";
+                    break;
+                case 11:
+                    str_details1 = ", Certificate";
+                    break;
+                case 12:
+                    str_details1 = ", ServerKeyExchange";
+                    break;
+                case 13:
+                    str_details1 = ", CertificateRequest";
+                    break;
+                case 14:
+                    str_details1 = ", ServerHelloDone";
+                    break;
+                case 15:
+                    str_details1 = ", CertificateVerify";
+                    break;
+                case 16:
+                    str_details1 = ", ClientKeyExchange";
+                    break;
+                case 20:
+                    str_details1 = ", Finished";
+                    break;
+                }
+            }
+        }
 #ifndef OPENSSL_NO_HEARTBEATS
-		if (content_type == 24) /* Heartbeat */
-			{
-			str_details1 = ", Heartbeat";
-			
-			if (len > 0)
-				{
-				switch (((const unsigned char*)buf)[0])
-					{
-				case 1:
-					str_details1 = ", HeartbeatRequest";
-					break;
-				case 2:
-					str_details1 = ", HeartbeatResponse";
-					break;
-					}
-				}
-			}
+        if (content_type == 24) { /* Heartbeat */
+            str_details1 = ", Heartbeat";
+
+            if (len > 0) {
+                switch (((const unsigned char *)buf)[0]) {
+                case 1:
+                    str_details1 = ", HeartbeatRequest";
+                    break;
+                case 2:
+                    str_details1 = ", HeartbeatResponse";
+                    break;
+                }
+            }
+        }
 #endif
-		}
+    }
 
-	BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version, str_content_type, (unsigned long)len, str_details1, str_details2);
+    BIO_printf(bio, "%s %s%s [length %04lx]%s%s\n", str_write_p, str_version,
+               str_content_type, (unsigned long)len, str_details1,
+               str_details2);
 
-	if (len > 0)
-		{
-		size_t num, i;
-		
-		BIO_printf(bio, "   ");
-		num = len;
+    if (len > 0) {
+        size_t num, i;
+
+        BIO_printf(bio, "   ");
+        num = len;
 #if 0
-		if (num > 16)
-			num = 16;
+        if (num > 16)
+            num = 16;
 #endif
-		for (i = 0; i < num; i++)
-			{
-			if (i % 16 == 0 && i > 0)
-				BIO_printf(bio, "\n   ");
-			BIO_printf(bio, " %02x", ((const unsigned char*)buf)[i]);
-			}
-		if (i < len)
-			BIO_printf(bio, " ...");
-		BIO_printf(bio, "\n");
-		}
-	(void)BIO_flush(bio);
-	}
+        for (i = 0; i < num; i++) {
+            if (i % 16 == 0 && i > 0)
+                BIO_printf(bio, "\n   ");
+            BIO_printf(bio, " %02x", ((const unsigned char *)buf)[i]);
+        }
+        if (i < len)
+            BIO_printf(bio, " ...");
+        BIO_printf(bio, "\n");
+    }
+    (void)BIO_flush(bio);
+}
 
 void MS_CALLBACK tlsext_cb(SSL *s, int client_server, int type,
-					unsigned char *data, int len,
-					void *arg)
-	{
-	BIO *bio = arg;
-	char *extname;
-
-	switch(type)
-		{
-		case TLSEXT_TYPE_server_name:
-		extname = "server name";
-		break;
-
-		case TLSEXT_TYPE_max_fragment_length:
-		extname = "max fragment length";
-		break;
-
-		case TLSEXT_TYPE_client_certificate_url:
-		extname = "client certificate URL";
-		break;
-
-		case TLSEXT_TYPE_trusted_ca_keys:
-		extname = "trusted CA keys";
-		break;
-
-		case TLSEXT_TYPE_truncated_hmac:
-		extname = "truncated HMAC";
-		break;
-
-		case TLSEXT_TYPE_status_request:
-		extname = "status request";
-		break;
-
-		case TLSEXT_TYPE_user_mapping:
-		extname = "user mapping";
-		break;
-
-		case TLSEXT_TYPE_client_authz:
-		extname = "client authz";
-		break;
-
-		case TLSEXT_TYPE_server_authz:
-		extname = "server authz";
-		break;
-
-		case TLSEXT_TYPE_cert_type:
-		extname = "cert type";
-		break;
-
-		case TLSEXT_TYPE_elliptic_curves:
-		extname = "elliptic curves";
-		break;
-
-		case TLSEXT_TYPE_ec_point_formats:
-		extname = "EC point formats";
-		break;
-
-		case TLSEXT_TYPE_srp:
-		extname = "SRP";
-		break;
-
-		case TLSEXT_TYPE_signature_algorithms:
-		extname = "signature algorithms";
-		break;
-
-		case TLSEXT_TYPE_use_srtp:
-		extname = "use SRTP";
-		break;
-
-		case TLSEXT_TYPE_heartbeat:
-		extname = "heartbeat";
-		break;
-
-		case TLSEXT_TYPE_session_ticket:
-		extname = "session ticket";
-		break;
-
-		case TLSEXT_TYPE_renegotiate: 
-		extname = "renegotiation info";
-		break;
+                           unsigned char *data, int len, void *arg)
+{
+    BIO *bio = arg;
+    char *extname;
+
+    switch (type) {
+    case TLSEXT_TYPE_server_name:
+        extname = "server name";
+        break;
+
+    case TLSEXT_TYPE_max_fragment_length:
+        extname = "max fragment length";
+        break;
+
+    case TLSEXT_TYPE_client_certificate_url:
+        extname = "client certificate URL";
+        break;
+
+    case TLSEXT_TYPE_trusted_ca_keys:
+        extname = "trusted CA keys";
+        break;
+
+    case TLSEXT_TYPE_truncated_hmac:
+        extname = "truncated HMAC";
+        break;
+
+    case TLSEXT_TYPE_status_request:
+        extname = "status request";
+        break;
+
+    case TLSEXT_TYPE_user_mapping:
+        extname = "user mapping";
+        break;
+
+    case TLSEXT_TYPE_client_authz:
+        extname = "client authz";
+        break;
+
+    case TLSEXT_TYPE_server_authz:
+        extname = "server authz";
+        break;
+
+    case TLSEXT_TYPE_cert_type:
+        extname = "cert type";
+        break;
+
+    case TLSEXT_TYPE_elliptic_curves:
+        extname = "elliptic curves";
+        break;
+
+    case TLSEXT_TYPE_ec_point_formats:
+        extname = "EC point formats";
+        break;
+
+    case TLSEXT_TYPE_srp:
+        extname = "SRP";
+        break;
+
+    case TLSEXT_TYPE_signature_algorithms:
+        extname = "signature algorithms";
+        break;
+
+    case TLSEXT_TYPE_use_srtp:
+        extname = "use SRTP";
+        break;
+
+    case TLSEXT_TYPE_heartbeat:
+        extname = "heartbeat";
+        break;
+
+    case TLSEXT_TYPE_session_ticket:
+        extname = "session ticket";
+        break;
+
+    case TLSEXT_TYPE_renegotiate:
+        extname = "renegotiation info";
+        break;
 
 #ifdef TLSEXT_TYPE_opaque_prf_input
-		case TLSEXT_TYPE_opaque_prf_input:
-		extname = "opaque PRF input";
-		break;
+    case TLSEXT_TYPE_opaque_prf_input:
+        extname = "opaque PRF input";
+        break;
 #endif
 #ifdef TLSEXT_TYPE_next_proto_neg
-		case TLSEXT_TYPE_next_proto_neg:
-		extname = "next protocol";
-		break;
+    case TLSEXT_TYPE_next_proto_neg:
+        extname = "next protocol";
+        break;
 #endif
 
-		case TLSEXT_TYPE_padding:
-		extname = "TLS padding";
-		break;
-
-		default:
-		extname = "unknown";
-		break;
-
-		}
-	
-	BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
-			client_server ? "server": "client",
-			extname, type, len);
-	BIO_dump(bio, (char *)data, len);
-	(void)BIO_flush(bio);
-	}
-
-int MS_CALLBACK generate_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len)
-	{
-	unsigned char *buffer, result[EVP_MAX_MD_SIZE];
-	unsigned int length, resultlength;
-	union {
-		struct sockaddr sa;
-		struct sockaddr_in s4;
+    case TLSEXT_TYPE_padding:
+        extname = "TLS padding";
+        break;
+
+    default:
+        extname = "unknown";
+        break;
+
+    }
+
+    BIO_printf(bio, "TLS %s extension \"%s\" (id=%d), len=%d\n",
+               client_server ? "server" : "client", extname, type, len);
+    BIO_dump(bio, (char *)data, len);
+    (void)BIO_flush(bio);
+}
+
+int MS_CALLBACK generate_cookie_callback(SSL *ssl, unsigned char *cookie,
+                                         unsigned int *cookie_len)
+{
+    unsigned char *buffer, result[EVP_MAX_MD_SIZE];
+    unsigned int length, resultlength;
+    union {
+        struct sockaddr sa;
+        struct sockaddr_in s4;
 #if OPENSSL_USE_IPV6
-		struct sockaddr_in6 s6;
+        struct sockaddr_in6 s6;
 #endif
-	} peer;
-
-	/* Initialize a random secret */
-	if (!cookie_initialized)
-		{
-		if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH))
-			{
-			BIO_printf(bio_err,"error setting random cookie secret\n");
-			return 0;
-			}
-		cookie_initialized = 1;
-		}
-
-	/* Read peer information */
-	(void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
-
-	/* Create buffer with peer's address and port */
-	length = 0;
-	switch (peer.sa.sa_family)
-		{
-	case AF_INET:
-		length += sizeof(struct in_addr);
-		length += sizeof(peer.s4.sin_port);
-		break;
+    } peer;
+
+    /* Initialize a random secret */
+    if (!cookie_initialized) {
+        if (!RAND_bytes(cookie_secret, COOKIE_SECRET_LENGTH)) {
+            BIO_printf(bio_err, "error setting random cookie secret\n");
+            return 0;
+        }
+        cookie_initialized = 1;
+    }
+
+    /* Read peer information */
+    (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
+
+    /* Create buffer with peer's address and port */
+    length = 0;
+    switch (peer.sa.sa_family) {
+    case AF_INET:
+        length += sizeof(struct in_addr);
+        length += sizeof(peer.s4.sin_port);
+        break;
 #if OPENSSL_USE_IPV6
-	case AF_INET6:
-		length += sizeof(struct in6_addr);
-		length += sizeof(peer.s6.sin6_port);
-		break;
+    case AF_INET6:
+        length += sizeof(struct in6_addr);
+        length += sizeof(peer.s6.sin6_port);
+        break;
 #endif
-	default:
-		OPENSSL_assert(0);
-		break;
-		}
-	buffer = OPENSSL_malloc(length);
-
-	if (buffer == NULL)
-		{
-		BIO_printf(bio_err,"out of memory\n");
-		return 0;
-		}
-
-	switch (peer.sa.sa_family)
-		{
-	case AF_INET:
-		memcpy(buffer,
-		       &peer.s4.sin_port,
-		       sizeof(peer.s4.sin_port));
-		memcpy(buffer + sizeof(peer.s4.sin_port),
-		       &peer.s4.sin_addr,
-		       sizeof(struct in_addr));
-		break;
+    default:
+        OPENSSL_assert(0);
+        break;
+    }
+    buffer = OPENSSL_malloc(length);
+
+    if (buffer == NULL) {
+        BIO_printf(bio_err, "out of memory\n");
+        return 0;
+    }
+
+    switch (peer.sa.sa_family) {
+    case AF_INET:
+        memcpy(buffer, &peer.s4.sin_port, sizeof(peer.s4.sin_port));
+        memcpy(buffer + sizeof(peer.s4.sin_port),
+               &peer.s4.sin_addr, sizeof(struct in_addr));
+        break;
 #if OPENSSL_USE_IPV6
-	case AF_INET6:
-		memcpy(buffer,
-		       &peer.s6.sin6_port,
-		       sizeof(peer.s6.sin6_port));
-		memcpy(buffer + sizeof(peer.s6.sin6_port),
-		       &peer.s6.sin6_addr,
-		       sizeof(struct in6_addr));
-		break;
+    case AF_INET6:
+        memcpy(buffer, &peer.s6.sin6_port, sizeof(peer.s6.sin6_port));
+        memcpy(buffer + sizeof(peer.s6.sin6_port),
+               &peer.s6.sin6_addr, sizeof(struct in6_addr));
+        break;
 #endif
-	default:
-		OPENSSL_assert(0);
-		break;
-		}
-
-	/* Calculate HMAC of buffer using the secret */
-	HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
-	     buffer, length, result, &resultlength);
-	OPENSSL_free(buffer);
-
-	memcpy(cookie, result, resultlength);
-	*cookie_len = resultlength;
-
-	return 1;
-	}
-
-int MS_CALLBACK verify_cookie_callback(SSL *ssl, unsigned char *cookie, unsigned int cookie_len)
-	{
-	unsigned char *buffer, result[EVP_MAX_MD_SIZE];
-	unsigned int length, resultlength;
-	union {
-		struct sockaddr sa;
-		struct sockaddr_in s4;
+    default:
+        OPENSSL_assert(0);
+        break;
+    }
+
+    /* Calculate HMAC of buffer using the secret */
+    HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
+         buffer, length, result, &resultlength);
+    OPENSSL_free(buffer);
+
+    memcpy(cookie, result, resultlength);
+    *cookie_len = resultlength;
+
+    return 1;
+}
+
+int MS_CALLBACK verify_cookie_callback(SSL *ssl, unsigned char *cookie,
+                                       unsigned int cookie_len)
+{
+    unsigned char *buffer, result[EVP_MAX_MD_SIZE];
+    unsigned int length, resultlength;
+    union {
+        struct sockaddr sa;
+        struct sockaddr_in s4;
 #if OPENSSL_USE_IPV6
-		struct sockaddr_in6 s6;
+        struct sockaddr_in6 s6;
 #endif
-	} peer;
-
-	/* If secret isn't initialized yet, the cookie can't be valid */
-	if (!cookie_initialized)
-		return 0;
-
-	/* Read peer information */
-	(void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
-
-	/* Create buffer with peer's address and port */
-	length = 0;
-	switch (peer.sa.sa_family)
-		{
-	case AF_INET:
-		length += sizeof(struct in_addr);
-		length += sizeof(peer.s4.sin_port);
-		break;
+    } peer;
+
+    /* If secret isn't initialized yet, the cookie can't be valid */
+    if (!cookie_initialized)
+        return 0;
+
+    /* Read peer information */
+    (void)BIO_dgram_get_peer(SSL_get_rbio(ssl), &peer);
+
+    /* Create buffer with peer's address and port */
+    length = 0;
+    switch (peer.sa.sa_family) {
+    case AF_INET:
+        length += sizeof(struct in_addr);
+        length += sizeof(peer.s4.sin_port);
+        break;
 #if OPENSSL_USE_IPV6
-	case AF_INET6:
-		length += sizeof(struct in6_addr);
-		length += sizeof(peer.s6.sin6_port);
-		break;
+    case AF_INET6:
+        length += sizeof(struct in6_addr);
+        length += sizeof(peer.s6.sin6_port);
+        break;
 #endif
-	default:
-		OPENSSL_assert(0);
-		break;
-		}
-	buffer = OPENSSL_malloc(length);
-	
-	if (buffer == NULL)
-		{
-		BIO_printf(bio_err,"out of memory\n");
-		return 0;
-		}
-
-	switch (peer.sa.sa_family)
-		{
-	case AF_INET:
-		memcpy(buffer,
-		       &peer.s4.sin_port,
-		       sizeof(peer.s4.sin_port));
-		memcpy(buffer + sizeof(peer.s4.sin_port),
-		       &peer.s4.sin_addr,
-		       sizeof(struct in_addr));
-		break;
+    default:
+        OPENSSL_assert(0);
+        break;
+    }
+    buffer = OPENSSL_malloc(length);
+
+    if (buffer == NULL) {
+        BIO_printf(bio_err, "out of memory\n");
+        return 0;
+    }
+
+    switch (peer.sa.sa_family) {
+    case AF_INET:
+        memcpy(buffer, &peer.s4.sin_port, sizeof(peer.s4.sin_port));
+        memcpy(buffer + sizeof(peer.s4.sin_port),
+               &peer.s4.sin_addr, sizeof(struct in_addr));
+        break;
 #if OPENSSL_USE_IPV6
-	case AF_INET6:
-		memcpy(buffer,
-		       &peer.s6.sin6_port,
-		       sizeof(peer.s6.sin6_port));
-		memcpy(buffer + sizeof(peer.s6.sin6_port),
-		       &peer.s6.sin6_addr,
-		       sizeof(struct in6_addr));
-		break;
+    case AF_INET6:
+        memcpy(buffer, &peer.s6.sin6_port, sizeof(peer.s6.sin6_port));
+        memcpy(buffer + sizeof(peer.s6.sin6_port),
+               &peer.s6.sin6_addr, sizeof(struct in6_addr));
+        break;
 #endif
-	default:
-		OPENSSL_assert(0);
-		break;
-		}
-
-	/* Calculate HMAC of buffer using the secret */
-	HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
-	     buffer, length, result, &resultlength);
-	OPENSSL_free(buffer);
-
-	if (cookie_len == resultlength && memcmp(result, cookie, resultlength) == 0)
-		return 1;
+    default:
+        OPENSSL_assert(0);
+        break;
+    }
+
+    /* Calculate HMAC of buffer using the secret */
+    HMAC(EVP_sha1(), cookie_secret, COOKIE_SECRET_LENGTH,
+         buffer, length, result, &resultlength);
+    OPENSSL_free(buffer);
+
+    if (cookie_len == resultlength
+        && memcmp(result, cookie, resultlength) == 0)
+        return 1;
+
+    return 0;
+}
+
+/*
+ * Example of extended certificate handling. Where the standard support of
+ * one certificate per algorithm is not sufficient an application can decide
+ * which certificate(s) to use at runtime based on whatever criteria it deems
+ * appropriate.
+ */
 
-	return 0;
-	}
+/* Linked list of certificates, keys and chains */
+struct ssl_excert_st {
+    int certform;
+    const char *certfile;
+    int keyform;
+    const char *keyfile;
+    const char *chainfile;
+    X509 *cert;
+    EVP_PKEY *key;
+    STACK_OF(X509) *chain;
+    int build_chain;
+    struct ssl_excert_st *next, *prev;
+};
+
+struct chain_flags {
+    int flag;
+    const char *name;
+};
+
+struct chain_flags chain_flags_list[] = {
+    {CERT_PKEY_VALID, "Overall Validity"},
+    {CERT_PKEY_SIGN, "Sign with EE key"},
+    {CERT_PKEY_EE_SIGNATURE, "EE signature"},
+    {CERT_PKEY_CA_SIGNATURE, "CA signature"},
+    {CERT_PKEY_EE_PARAM, "EE key parameters"},
+    {CERT_PKEY_CA_PARAM, "CA key parameters"},
+    {CERT_PKEY_EXPLICIT_SIGN, "Explicity sign with EE key"},
+    {CERT_PKEY_ISSUER_NAME, "Issuer Name"},
+    {CERT_PKEY_CERT_TYPE, "Certificate Type"},
+    {0, NULL}
+};
+
+static void print_chain_flags(BIO *out, SSL *s, int flags)
+{
+    struct chain_flags *ctmp = chain_flags_list;
+    while (ctmp->name) {
+        BIO_printf(out, "\t%s: %s\n", ctmp->name,
+                   flags & ctmp->flag ? "OK" : "NOT OK");
+        ctmp++;
+    }
+    BIO_printf(out, "\tSuite B: ");
+    if (SSL_set_cert_flags(s, 0) & SSL_CERT_FLAG_SUITEB_128_LOS)
+        BIO_puts(out, flags & CERT_PKEY_SUITEB ? "OK\n" : "NOT OK\n");
+    else
+        BIO_printf(out, "not tested\n");
+}
+
+/*
+ * Very basic selection callback: just use any certificate chain reported as
+ * valid. More sophisticated could prioritise according to local policy.
+ */
+static int set_cert_cb(SSL *ssl, void *arg)
+{
+    int i, rv;
+    SSL_EXCERT *exc = arg;
+#ifdef CERT_CB_TEST_RETRY
+    static int retry_cnt;
+    if (retry_cnt < 5) {
+        retry_cnt++;
+        fprintf(stderr, "Certificate callback retry test: count %d\n",
+                retry_cnt);
+        return -1;
+    }
+#endif
+    SSL_certs_clear(ssl);
+
+    if (!exc)
+        return 1;
+
+    /*
+     * Go to end of list and traverse backwards since we prepend newer
+     * entries this retains the original order.
+     */
+    while (exc->next)
+        exc = exc->next;
+
+    i = 0;
+
+    while (exc) {
+        i++;
+        rv = SSL_check_chain(ssl, exc->cert, exc->key, exc->chain);
+        BIO_printf(bio_err, "Checking cert chain %d:\nSubject: ", i);
+        X509_NAME_print_ex(bio_err, X509_get_subject_name(exc->cert), 0,
+                           XN_FLAG_ONELINE);
+        BIO_puts(bio_err, "\n");
+
+        print_chain_flags(bio_err, ssl, rv);
+        if (rv & CERT_PKEY_VALID) {
+            SSL_use_certificate(ssl, exc->cert);
+            SSL_use_PrivateKey(ssl, exc->key);
+            /*
+             * NB: we wouldn't normally do this as it is not efficient
+             * building chains on each connection better to cache the chain
+             * in advance.
+             */
+            if (exc->build_chain) {
+                if (!SSL_build_cert_chain(ssl, 0))
+                    return 0;
+            } else if (exc->chain)
+                SSL_set1_chain(ssl, exc->chain);
+        }
+        exc = exc->prev;
+    }
+    return 1;
+}
+
+void ssl_ctx_set_excert(SSL_CTX *ctx, SSL_EXCERT *exc)
+{
+    SSL_CTX_set_cert_cb(ctx, set_cert_cb, exc);
+}
+
+static int ssl_excert_prepend(SSL_EXCERT **pexc)
+{
+    SSL_EXCERT *exc;
+    exc = OPENSSL_malloc(sizeof(SSL_EXCERT));
+    if (!exc)
+        return 0;
+    exc->certfile = NULL;
+    exc->keyfile = NULL;
+    exc->chainfile = NULL;
+    exc->cert = NULL;
+    exc->key = NULL;
+    exc->chain = NULL;
+    exc->prev = NULL;
+    exc->build_chain = 0;
+
+    exc->next = *pexc;
+    *pexc = exc;
+
+    if (exc->next) {
+        exc->certform = exc->next->certform;
+        exc->keyform = exc->next->keyform;
+        exc->next->prev = exc;
+    } else {
+        exc->certform = FORMAT_PEM;
+        exc->keyform = FORMAT_PEM;
+    }
+    return 1;
+
+}
+
+void ssl_excert_free(SSL_EXCERT *exc)
+{
+    SSL_EXCERT *curr;
+    while (exc) {
+        if (exc->cert)
+            X509_free(exc->cert);
+        if (exc->key)
+            EVP_PKEY_free(exc->key);
+        if (exc->chain)
+            sk_X509_pop_free(exc->chain, X509_free);
+        curr = exc;
+        exc = exc->next;
+        OPENSSL_free(curr);
+    }
+}
+
+int load_excert(SSL_EXCERT **pexc, BIO *err)
+{
+    SSL_EXCERT *exc = *pexc;
+    if (!exc)
+        return 1;
+    /* If nothing in list, free and set to NULL */
+    if (!exc->certfile && !exc->next) {
+        ssl_excert_free(exc);
+        *pexc = NULL;
+        return 1;
+    }
+    for (; exc; exc = exc->next) {
+        if (!exc->certfile) {
+            BIO_printf(err, "Missing filename\n");
+            return 0;
+        }
+        exc->cert = load_cert(err, exc->certfile, exc->certform,
+                              NULL, NULL, "Server Certificate");
+        if (!exc->cert)
+            return 0;
+        if (exc->keyfile) {
+            exc->key = load_key(err, exc->keyfile, exc->keyform,
+                                0, NULL, NULL, "Server Key");
+        } else {
+            exc->key = load_key(err, exc->certfile, exc->certform,
+                                0, NULL, NULL, "Server Key");
+        }
+        if (!exc->key)
+            return 0;
+        if (exc->chainfile) {
+            exc->chain = load_certs(err,
+                                    exc->chainfile, FORMAT_PEM,
+                                    NULL, NULL, "Server Chain");
+            if (!exc->chain)
+                return 0;
+        }
+    }
+    return 1;
+}
+
+int args_excert(char ***pargs, int *pargc,
+                int *badarg, BIO *err, SSL_EXCERT **pexc)
+{
+    char *arg = **pargs, *argn = (*pargs)[1];
+    SSL_EXCERT *exc = *pexc;
+    int narg = 2;
+    if (!exc) {
+        if (ssl_excert_prepend(&exc))
+            *pexc = exc;
+        else {
+            BIO_printf(err, "Error initialising xcert\n");
+            *badarg = 1;
+            goto err;
+        }
+    }
+    if (strcmp(arg, "-xcert") == 0) {
+        if (!argn) {
+            *badarg = 1;
+            return 1;
+        }
+        if (exc->certfile && !ssl_excert_prepend(&exc)) {
+            BIO_printf(err, "Error adding xcert\n");
+            *badarg = 1;
+            goto err;
+        }
+        exc->certfile = argn;
+    } else if (strcmp(arg, "-xkey") == 0) {
+        if (!argn) {
+            *badarg = 1;
+            return 1;
+        }
+        if (exc->keyfile) {
+            BIO_printf(err, "Key already specified\n");
+            *badarg = 1;
+            return 1;
+        }
+        exc->keyfile = argn;
+    } else if (strcmp(arg, "-xchain") == 0) {
+        if (!argn) {
+            *badarg = 1;
+            return 1;
+        }
+        if (exc->chainfile) {
+            BIO_printf(err, "Chain already specified\n");
+            *badarg = 1;
+            return 1;
+        }
+        exc->chainfile = argn;
+    } else if (strcmp(arg, "-xchain_build") == 0) {
+        narg = 1;
+        exc->build_chain = 1;
+    } else if (strcmp(arg, "-xcertform") == 0) {
+        if (!argn) {
+            *badarg = 1;
+            goto err;
+        }
+        exc->certform = str2fmt(argn);
+    } else if (strcmp(arg, "-xkeyform") == 0) {
+        if (!argn) {
+            *badarg = 1;
+            goto err;
+        }
+        exc->keyform = str2fmt(argn);
+    } else
+        return 0;
+
+    (*pargs) += narg;
+
+    if (pargc)
+        *pargc -= narg;
+
+    *pexc = exc;
+
+    return 1;
+
+ err:
+    ERR_print_errors(err);
+    ssl_excert_free(exc);
+    *pexc = NULL;
+    return 1;
+}
+
+static void print_raw_cipherlist(BIO *bio, SSL *s)
+{
+    const unsigned char *rlist;
+    static const unsigned char scsv_id[] = { 0, 0, 0xFF };
+    size_t i, rlistlen, num;
+    if (!SSL_is_server(s))
+        return;
+    num = SSL_get0_raw_cipherlist(s, NULL);
+    rlistlen = SSL_get0_raw_cipherlist(s, &rlist);
+    BIO_puts(bio, "Client cipher list: ");
+    for (i = 0; i < rlistlen; i += num, rlist += num) {
+        const SSL_CIPHER *c = SSL_CIPHER_find(s, rlist);
+        if (i)
+            BIO_puts(bio, ":");
+        if (c)
+            BIO_puts(bio, SSL_CIPHER_get_name(c));
+        else if (!memcmp(rlist, scsv_id - num + 3, num))
+            BIO_puts(bio, "SCSV");
+        else {
+            size_t j;
+            BIO_puts(bio, "0x");
+            for (j = 0; j < num; j++)
+                BIO_printf(bio, "%02X", rlist[j]);
+        }
+    }
+    BIO_puts(bio, "\n");
+}
+
+void print_ssl_summary(BIO *bio, SSL *s)
+{
+    const SSL_CIPHER *c;
+    X509 *peer;
+    /*
+     * const char *pnam = SSL_is_server(s) ? "client" : "server";
+     */
+    BIO_printf(bio, "Protocol version: %s\n", SSL_get_version(s));
+    print_raw_cipherlist(bio, s);
+    c = SSL_get_current_cipher(s);
+    BIO_printf(bio, "Ciphersuite: %s\n", SSL_CIPHER_get_name(c));
+    do_print_sigalgs(bio, s, 0);
+    peer = SSL_get_peer_certificate(s);
+    if (peer) {
+        int nid;
+        BIO_puts(bio, "Peer certificate: ");
+        X509_NAME_print_ex(bio, X509_get_subject_name(peer),
+                           0, XN_FLAG_ONELINE);
+        BIO_puts(bio, "\n");
+        if (SSL_get_peer_signature_nid(s, &nid))
+            BIO_printf(bio, "Hash used: %s\n", OBJ_nid2sn(nid));
+    } else
+        BIO_puts(bio, "No peer certificate\n");
+    if (peer)
+        X509_free(peer);
+#ifndef OPENSSL_NO_EC
+    ssl_print_point_formats(bio, s);
+    if (SSL_is_server(s))
+        ssl_print_curves(bio, s, 1);
+    else
+        ssl_print_tmp_key(bio, s);
+#else
+    if (!SSL_is_server(s))
+        ssl_print_tmp_key(bio, s);
+#endif
+}
+
+int args_ssl(char ***pargs, int *pargc, SSL_CONF_CTX *cctx,
+             int *badarg, BIO *err, STACK_OF(OPENSSL_STRING) **pstr)
+{
+    char *arg = **pargs, *argn = (*pargs)[1];
+    int rv;
+
+    /* Attempt to run SSL configuration command */
+    rv = SSL_CONF_cmd_argv(cctx, pargc, pargs);
+    /* If parameter not recognised just return */
+    if (rv == 0)
+        return 0;
+    /* see if missing argument error */
+    if (rv == -3) {
+        BIO_printf(err, "%s needs an argument\n", arg);
+        *badarg = 1;
+        goto end;
+    }
+    /* Check for some other error */
+    if (rv < 0) {
+        BIO_printf(err, "Error with command: \"%s %s\"\n",
+                   arg, argn ? argn : "");
+        *badarg = 1;
+        goto end;
+    }
+    /* Store command and argument */
+    /* If only one argument processed store value as NULL */
+    if (rv == 1)
+        argn = NULL;
+    if (!*pstr)
+        *pstr = sk_OPENSSL_STRING_new_null();
+    if (!*pstr || !sk_OPENSSL_STRING_push(*pstr, arg) ||
+        !sk_OPENSSL_STRING_push(*pstr, argn)) {
+        BIO_puts(err, "Memory allocation failure\n");
+        goto end;
+    }
+
+ end:
+    if (*badarg)
+        ERR_print_errors(err);
+
+    return 1;
+}
+
+int args_ssl_call(SSL_CTX *ctx, BIO *err, SSL_CONF_CTX *cctx,
+                  STACK_OF(OPENSSL_STRING) *str, int no_ecdhe, int no_jpake)
+{
+    int i;
+    SSL_CONF_CTX_set_ssl_ctx(cctx, ctx);
+    for (i = 0; i < sk_OPENSSL_STRING_num(str); i += 2) {
+        const char *param = sk_OPENSSL_STRING_value(str, i);
+        const char *value = sk_OPENSSL_STRING_value(str, i + 1);
+        /*
+         * If no_ecdhe or named curve already specified don't need a default.
+         */
+        if (!no_ecdhe && !strcmp(param, "-named_curve"))
+            no_ecdhe = 1;
+#ifndef OPENSSL_NO_JPAKE
+        if (!no_jpake && !strcmp(param, "-cipher")) {
+            BIO_puts(err, "JPAKE sets cipher to PSK\n");
+            return 0;
+        }
+#endif
+        if (SSL_CONF_cmd(cctx, param, value) <= 0) {
+            BIO_printf(err, "Error with command: \"%s %s\"\n",
+                       param, value ? value : "");
+            ERR_print_errors(err);
+            return 0;
+        }
+    }
+    /*
+     * This is a special case to keep existing s_server functionality: if we
+     * don't have any curve specified *and* we haven't disabled ECDHE then
+     * use P-256.
+     */
+    if (!no_ecdhe) {
+        if (SSL_CONF_cmd(cctx, "-named_curve", "P-256") <= 0) {
+            BIO_puts(err, "Error setting EC curve\n");
+            ERR_print_errors(err);
+            return 0;
+        }
+    }
+#ifndef OPENSSL_NO_JPAKE
+    if (!no_jpake) {
+        if (SSL_CONF_cmd(cctx, "-cipher", "PSK") <= 0) {
+            BIO_puts(err, "Error setting cipher to PSK\n");
+            ERR_print_errors(err);
+            return 0;
+        }
+    }
+#endif
+    if (!SSL_CONF_CTX_finish(cctx)) {
+        BIO_puts(err, "Error finishing context\n");
+        ERR_print_errors(err);
+        return 0;
+    }
+    return 1;
+}
+
+static int add_crls_store(X509_STORE *st, STACK_OF(X509_CRL) *crls)
+{
+    X509_CRL *crl;
+    int i;
+    for (i = 0; i < sk_X509_CRL_num(crls); i++) {
+        crl = sk_X509_CRL_value(crls, i);
+        X509_STORE_add_crl(st, crl);
+    }
+    return 1;
+}
+
+int ssl_ctx_add_crls(SSL_CTX *ctx, STACK_OF(X509_CRL) *crls, int crl_download)
+{
+    X509_STORE *st;
+    st = SSL_CTX_get_cert_store(ctx);
+    add_crls_store(st, crls);
+    if (crl_download)
+        store_setup_crl_download(st);
+    return 1;
+}
+
+int ssl_load_stores(SSL_CTX *ctx,
+                    const char *vfyCApath, const char *vfyCAfile,
+                    const char *chCApath, const char *chCAfile,
+                    STACK_OF(X509_CRL) *crls, int crl_download)
+{
+    X509_STORE *vfy = NULL, *ch = NULL;
+    int rv = 0;
+    if (vfyCApath || vfyCAfile) {
+        vfy = X509_STORE_new();
+        if (!X509_STORE_load_locations(vfy, vfyCAfile, vfyCApath))
+            goto err;
+        add_crls_store(vfy, crls);
+        SSL_CTX_set1_verify_cert_store(ctx, vfy);
+        if (crl_download)
+            store_setup_crl_download(vfy);
+    }
+    if (chCApath || chCAfile) {
+        ch = X509_STORE_new();
+        if (!X509_STORE_load_locations(ch, chCAfile, chCApath))
+            goto err;
+        SSL_CTX_set1_chain_cert_store(ctx, ch);
+    }
+    rv = 1;
+ err:
+    if (vfy)
+        X509_STORE_free(vfy);
+    if (ch)
+        X509_STORE_free(ch);
+    return rv;
+}