diff --git a/modules/ssl/mod_ssl.h b/modules/ssl/mod_ssl.h

index 24a65a0..a360911 100644

--- a/modules/ssl/mod_ssl.h

+++ b/modules/ssl/mod_ssl.h

@@ -29,6 +29,7 @@

 #include "httpd.h"

 #include "http_config.h"

 #include "apr_optional.h"

+#include "apr_tables.h" /* for apr_array_header_t */

 /* Create a set of SSL_DECLARE(type), SSL_DECLARE_NONSTD(type) and

  * SSL_DECLARE_DATA with appropriate export and import tags for the platform

@@ -86,6 +87,34 @@ APR_DECLARE_OPTIONAL_FN(int, ssl_engine_disable, (conn_rec *));

 APR_DECLARE_OPTIONAL_FN(int, ssl_engine_set, (conn_rec *,

                                               ap_conf_vector_t *,

                                               int proxy, int enable));

+                                              

+/* Check for availability of new hooks */

+#define SSL_CERT_HOOKS

+#ifdef SSL_CERT_HOOKS

+

+/** Lets others add certificate and key files to the given server.

+ * For each cert a key must also be added.

+ * @param cert_file and array of const char* with the path to the certificate chain

+ * @param key_file and array of const char* with the path to the private key file

+ */

+APR_DECLARE_EXTERNAL_HOOK(ssl, SSL, int, add_cert_files,

+                          (server_rec *s, apr_pool_t *p, 

+                           apr_array_header_t *cert_files,

+                           apr_array_header_t *key_files))

+

+/** In case no certificates are available for a server, this

+ * lets other modules add a fallback certificate for the time

+ * being. Regular requests against this server will be answered

+ * with a 503. 

+ * @param cert_file and array of const char* with the path to the certificate chain

+ * @param key_file and array of const char* with the path to the private key file

+ */

+APR_DECLARE_EXTERNAL_HOOK(ssl, SSL, int, add_fallback_cert_files,

+                          (server_rec *s, apr_pool_t *p, 

+                           apr_array_header_t *cert_files,

+                           apr_array_header_t *key_files))

+

+#endif /* SSL_CERT_HOOKS */

 #endif /* __MOD_SSL_H__ */

 /** @} */

diff --git a/modules/ssl/mod_ssl_openssl.h b/modules/ssl/mod_ssl_openssl.h

index 0fa654a..d4f684f 100644

--- a/modules/ssl/mod_ssl_openssl.h

+++ b/modules/ssl/mod_ssl_openssl.h

@@ -69,5 +69,45 @@ APR_DECLARE_EXTERNAL_HOOK(ssl, SSL, int, pre_handshake,

 APR_DECLARE_EXTERNAL_HOOK(ssl, SSL, int, proxy_post_handshake,

                           (conn_rec *c, SSL *ssl))

+/** On TLS connections that do not relate to a configured virtual host,

+ * allow other modules to provide a X509 certificate and EVP_PKEY to

+ * be used on the connection. This first hook which does not

+ * return DECLINED will determine the outcome. */

+APR_DECLARE_EXTERNAL_HOOK(ssl, SSL, int, answer_challenge,

+                          (conn_rec *c, const char *server_name, 

+                          X509 **pcert, EVP_PKEY **pkey))

+

+/** During post_config phase, ask around if someone wants to provide

+ * OCSP stapling status information for the given cert (with the also

+ * provided issuer certificate). The first hook which does not

+ * return DECLINED promises to take responsibility (and respond

+ * in later calls via hook ssl_get_stapling_status).

+ * If no hook takes over, mod_ssl's own stapling implementation will

+ * be applied (if configured).

+ */

+APR_DECLARE_EXTERNAL_HOOK(ssl, SSL, int, init_stapling_status,

+                          (server_rec *s, apr_pool_t *p, 

+                          X509 *cert, X509 *issuer))

+

+/** Anyone answering positive to ssl_init_stapling_status for a 

+ * certificate, needs to register here and supply the actual OCSP stapling

+ * status data (OCSP_RESP) for a new connection.

+ * A hook supplying the response data must return APR_SUCCESS.

+ * The data is returned in DER encoded bytes via pder and pderlen. The

+ * returned pointer may be NULL, which indicates that data is (currently)

+ * unavailable.

+ * If DER data is returned, it MUST come from a response with

+ * status OCSP_RESPONSE_STATUS_SUCCESSFUL and V_OCSP_CERTSTATUS_GOOD

+ * or V_OCSP_CERTSTATUS_REVOKED, not V_OCSP_CERTSTATUS_UNKNOWN. This means

+ * errors in OCSP retrieval are to be handled/logged by the hook and

+ * are not done by mod_ssl.

+ * Any DER bytes returned MUST be allocated via malloc() and ownership

+ * passes to mod_ssl. Meaning, the hook must return a malloced copy of

+ * the data it has. mod_ssl (or OpenSSL) will free it. 

+ */

+APR_DECLARE_EXTERNAL_HOOK(ssl, SSL, int, get_stapling_status,

+                          (unsigned char **pder, int *pderlen, 

+                          conn_rec *c, server_rec *s, X509 *cert))

+                          

 #endif /* __MOD_SSL_OPENSSL_H__ */

 /** @} */

diff --git a/modules/ssl/ssl_engine_init.c b/modules/ssl/ssl_engine_init.c

index 397712b..5eec016 100644

--- a/modules/ssl/ssl_engine_init.c

+++ b/modules/ssl/ssl_engine_init.c

@@ -36,6 +36,25 @@ APR_IMPLEMENT_OPTIONAL_HOOK_RUN_ALL(ssl, SSL, int, init_server,

                                     (server_rec *s,apr_pool_t *p,int is_proxy,SSL_CTX *ctx),

                                     (s,p,is_proxy,ctx), OK, DECLINED)

+APR_IMPLEMENT_OPTIONAL_HOOK_RUN_ALL(ssl, SSL, int, add_cert_files,

+                                    (server_rec *s, apr_pool_t *p, 

+                                    apr_array_header_t *cert_files, apr_array_header_t *key_files),

+                                    (s, p, cert_files, key_files),

+                                    OK, DECLINED)

+

+APR_IMPLEMENT_OPTIONAL_HOOK_RUN_ALL(ssl, SSL, int, add_fallback_cert_files,

+                                    (server_rec *s, apr_pool_t *p, 

+                                    apr_array_header_t *cert_files, apr_array_header_t *key_files),

+                                    (s, p, cert_files, key_files),

+                                    OK, DECLINED)

+

+APR_IMPLEMENT_OPTIONAL_HOOK_RUN_ALL(ssl, SSL, int, answer_challenge,

+                                    (conn_rec *c, const char *server_name, 

+                                    X509 **pcert, EVP_PKEY **pkey),

+                                    (c, server_name, pcert, pkey),

+                                    DECLINED, DECLINED)

+

+

 /*  _________________________________________________________________

 **

 **  Module Initialization

@@ -165,18 +184,18 @@ static void ssl_add_version_components(apr_pool_t *p,

                  modver, AP_SERVER_BASEVERSION, incver);

 }

-/**************************************************************************************************/

-/* Managed Domains Interface */

-

-static APR_OPTIONAL_FN_TYPE(md_is_managed) *md_is_managed;

-static APR_OPTIONAL_FN_TYPE(md_get_certificate) *md_get_certificate;

-static APR_OPTIONAL_FN_TYPE(md_is_challenge) *md_is_challenge;

+/*  _________________________________________________________________

+**

+**  Let other answer special connection attempts. 

+**  Used in ACME challenge handling by mod_md.

+**  _________________________________________________________________

+*/

 int ssl_is_challenge(conn_rec *c, const char *servername, 

                      X509 **pcert, EVP_PKEY **pkey)

 {

-    if (md_is_challenge) {

-        return md_is_challenge(c, servername, pcert, pkey);

+    if (APR_SUCCESS == ssl_run_answer_challenge(c, servername, pcert, pkey)) {

+        return 1;

     }

     *pcert = NULL;

     *pkey = NULL;

@@ -223,16 +242,6 @@ apr_status_t ssl_init_Module(apr_pool_t *p, apr_pool_t *plog,

     ssl_config_global_create(base_server); /* just to avoid problems */

     ssl_config_global_fix(mc);

-    /* Initialize our interface to mod_md, if it is loaded 

-     */

-    md_is_managed = APR_RETRIEVE_OPTIONAL_FN(md_is_managed);

-    md_get_certificate = APR_RETRIEVE_OPTIONAL_FN(md_get_certificate);

-    md_is_challenge = APR_RETRIEVE_OPTIONAL_FN(md_is_challenge);

-    if (!md_is_managed || !md_get_certificate) {

-        md_is_managed = NULL;

-        md_get_certificate = NULL;

-    }

-

     /*

      *  try to fix the configuration and open the dedicated SSL

      *  logfile as early as possible

@@ -1292,8 +1301,7 @@ static apr_status_t ssl_init_server_certs(server_rec *s,

          * loaded via SSLOpenSSLConfCmd Certificate), so for 1.0.2 and

          * later, we defer to the code in ssl_init_server_ctx.

          */

-        if ((mctx->stapling_enabled == TRUE) &&

-            !ssl_stapling_init_cert(s, p, ptemp, mctx, cert)) {

+        if (!ssl_stapling_init_cert(s, p, ptemp, mctx, cert)) {

             ap_log_error(APLOG_MARK, APLOG_ERR, 0, s, APLOGNO(02567)

                          "Unable to configure certificate %s for stapling",

                          key_id);

@@ -1680,11 +1688,13 @@ static apr_status_t ssl_init_server_ctx(server_rec *s,

                                         apr_array_header_t *pphrases)

 {

     apr_status_t rv;

+    modssl_pk_server_t *pks;

 #ifdef HAVE_SSL_CONF_CMD

     ssl_ctx_param_t *param = (ssl_ctx_param_t *)sc->server->ssl_ctx_param->elts;

     SSL_CONF_CTX *cctx = sc->server->ssl_ctx_config;

     int i;

 #endif

+    int n;

     /*

      *  Check for problematic re-initializations

@@ -1696,50 +1706,24 @@ static apr_status_t ssl_init_server_ctx(server_rec *s,

         return APR_EGENERAL;

     }

-    ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, APLOGNO(10083)

-                 "Init: (%s) mod_md support is %s.", ssl_util_vhostid(p, s),

-                 md_is_managed? "available" : "unavailable");

-    if (md_is_managed && md_is_managed(s)) {

-        modssl_pk_server_t *const pks = sc->server->pks;

-        if (pks->cert_files->nelts > 0 || pks->key_files->nelts > 0) {

-            ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s, APLOGNO(10084)

-                         "Init: (%s) You configured certificate/key files on this host, but "

-                         "is is covered by a Managed Domain. You need to remove these directives "

-                         "for the Managed Domain to take over.", ssl_util_vhostid(p, s));

-        }

-        else {

-            const char *key_file, *cert_file, *chain_file;

-            

-            key_file = cert_file = chain_file = NULL;

-            

-            if (md_get_certificate) {

-                rv = md_get_certificate(s, p, &key_file, &cert_file);

-            }

-            else {

-                rv = APR_ENOTIMPL;

-            }

-            

-            if (key_file && cert_file) {

-                ap_log_error(APLOG_MARK, APLOG_TRACE1, 0, s, 

-                             "%s: installing key=%s, cert=%s, chain=%s", 

-                             ssl_util_vhostid(p, s), key_file, cert_file, chain_file);

-                APR_ARRAY_PUSH(pks->key_files, const char *) = key_file;

-                APR_ARRAY_PUSH(pks->cert_files, const char *) = cert_file;

-                sc->server->cert_chain = chain_file;

-            }

-            

-            if (APR_STATUS_IS_EAGAIN(rv)) {

-                /* Managed Domain not ready yet. This is not a reason to fail the config */

-                ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s, APLOGNO(10085)

-                             "Init: %s will respond with '503 Service Unavailable' for now. This "

-                             "host is part of a Managed Domain, but no SSL certificate is "

-                             "available (yet).", ssl_util_vhostid(p, s));

-                pks->service_unavailable = 1;

-            }

-            else if (rv != APR_SUCCESS) {

-                return rv;

-            }

-        }

+    /* Allow others to provide certificate files */

+    pks = sc->server->pks;

+    n = pks->cert_files->nelts;

+    ssl_run_add_cert_files(s, p, pks->cert_files, pks->key_files);

+

+    if (n < pks->cert_files->nelts) {

+        /* this overrides any old chain configuration */

+        sc->server->cert_chain = NULL;

+    }

+    

+    if (apr_is_empty_array(pks->cert_files) && !sc->server->cert_chain) {

+        ssl_run_add_fallback_cert_files(s, p, pks->cert_files, pks->key_files);

+        

+        pks->service_unavailable = 1;

+        ap_log_error(APLOG_MARK, APLOG_WARNING, 0, s, APLOGNO(10085)

+                     "Init: %s will respond with '503 Service Unavailable' for now. There "

+                     "are no SSL certificates configured and no other module contributed any.",

+                     ssl_util_vhostid(p, s));

     }

     if ((rv = ssl_init_ctx(s, p, ptemp, sc->server)) != APR_SUCCESS) {

@@ -1792,7 +1776,7 @@ static apr_status_t ssl_init_server_ctx(server_rec *s,

      * (late) point makes sure that we catch both certificates loaded

      * via SSLCertificateFile and SSLOpenSSLConfCmd Certificate.

      */

-    if (sc->server->stapling_enabled == TRUE) {

+    do {

         X509 *cert;

         int i = 0;

         int ret = SSL_CTX_set_current_cert(sc->server->ssl_ctx,

@@ -1809,7 +1793,7 @@ static apr_status_t ssl_init_server_ctx(server_rec *s,

                                            SSL_CERT_SET_NEXT);

             i++;

         }

-    }

+    } while(0);

 #endif

 #ifdef HAVE_TLS_SESSION_TICKETS

diff --git a/modules/ssl/ssl_engine_kernel.c b/modules/ssl/ssl_engine_kernel.c

index d6aa051..456984a 100644

--- a/modules/ssl/ssl_engine_kernel.c

+++ b/modules/ssl/ssl_engine_kernel.c

@@ -2114,6 +2114,37 @@ void ssl_callback_Info(const SSL *ssl, int where, int rc)

 }

 #ifdef HAVE_TLSEXT

+

+static apr_status_t set_challenge_creds(conn_rec *c, const char *servername,

+                                        SSL *ssl, X509 *cert, EVP_PKEY *key)

+{

+    SSLConnRec *sslcon = myConnConfig(c);

+    

+    sslcon->service_unavailable = 1;

+    if ((SSL_use_certificate(ssl, cert) < 1)) {

+        ap_log_cerror(APLOG_MARK, APLOG_WARNING, 0, c, APLOGNO(10086)

+                      "Failed to configure challenge certificate %s",

+                      servername);

+        return APR_EGENERAL;

+    }

+    

+    if (!SSL_use_PrivateKey(ssl, key)) {

+        ap_log_cerror(APLOG_MARK, APLOG_WARNING, 0, c, APLOGNO(10087)

+                      "error '%s' using Challenge key: %s",

+                      ERR_error_string(ERR_peek_last_error(), NULL), 

+                      servername);

+        return APR_EGENERAL;

+    }

+    

+    if (SSL_check_private_key(ssl) < 1) {

+        ap_log_cerror(APLOG_MARK, APLOG_WARNING, 0, c, APLOGNO(10088)

+                      "Challenge certificate and private key %s "

+                      "do not match", servername);

+        return APR_EGENERAL;

+    }

+    return APR_SUCCESS;

+}

+  

 /*

  * This function sets the virtual host from an extended

  * client hello with a server name indication extension ("SNI", cf. RFC 6066).

@@ -2144,29 +2175,12 @@ static apr_status_t init_vhost(conn_rec *c, SSL *ssl)

             }

             else if (ssl_is_challenge(c, servername, &cert, &key)) {

-                sslcon->service_unavailable = 1;

-                if ((SSL_use_certificate(ssl, cert) < 1)) {

-                    ap_log_cerror(APLOG_MARK, APLOG_WARNING, 0, c, APLOGNO(10086)

-                                  "Failed to configure challenge certificate %s",

-                                  servername);

+                /* With ACMEv1 we can have challenge connections to a unknown domains

+                 * that need to be answered with a special certificate and will

+                 * otherwise not answer any requests. */

+                if (set_challenge_creds(c, servername, ssl, cert, key) != APR_SUCCESS) {

                     return APR_EGENERAL;

                 }

-                

-                if (!SSL_use_PrivateKey(ssl, key)) {

-                    ap_log_cerror(APLOG_MARK, APLOG_WARNING, 0, c, APLOGNO(10087)

-                                  "error '%s' using Challenge key: %s",

-                                  ERR_error_string(ERR_peek_last_error(), NULL), 

-                                  servername);

-                    return APR_EGENERAL;

-                }

-                

-                if (SSL_check_private_key(ssl) < 1) {

-                    ap_log_cerror(APLOG_MARK, APLOG_WARNING, 0, c, APLOGNO(10088)

-                                  "Challenbge certificate and private key %s "

-                                  "do not match", servername);

-                    return APR_EGENERAL;

-                }

-                

             }

             else {

                 ap_log_cerror(APLOG_MARK, APLOG_DEBUG, 0, c, APLOGNO(02044)

@@ -2457,6 +2471,23 @@ int ssl_callback_alpn_select(SSL *ssl,

                           proposed);

             return SSL_TLSEXT_ERR_ALERT_FATAL;

         }

+        

+        /* protocol was switched, this could be a challenge protocol such as "acme-tls/1".

+         * For that to work, we need to allow overrides to our ssl certificate. 

+         * However, exclude challenge checks on our best known traffic protocol.

+         * (http/1.1 is the default, we never switch to it anyway.)

+         */

+        if (strcmp("h2", proposed)) {

+            const char *servername = SSL_get_servername(ssl, TLSEXT_NAMETYPE_host_name);

+            X509 *cert;

+            EVP_PKEY *key;

+            

+            if (ssl_is_challenge(c, servername, &cert, &key)) {

+                if (set_challenge_creds(c, servername, ssl, cert, key) != APR_SUCCESS) {

+                    return SSL_TLSEXT_ERR_ALERT_FATAL;

+                }

+            }

+        }

     }

     return SSL_TLSEXT_ERR_OK;

diff --git a/modules/ssl/ssl_util_stapling.c b/modules/ssl/ssl_util_stapling.c

index c3e2cfa..4df0a9a 100644

--- a/modules/ssl/ssl_util_stapling.c

+++ b/modules/ssl/ssl_util_stapling.c

@@ -31,12 +31,28 @@

 #include "ssl_private.h"

 #include "ap_mpm.h"

 #include "apr_thread_mutex.h"

+#include "mod_ssl_openssl.h"

+

+APR_IMPLEMENT_OPTIONAL_HOOK_RUN_ALL(ssl, SSL, int, init_stapling_status,

+                                    (server_rec *s, apr_pool_t *p, 

+                                     X509 *cert, X509 *issuer),

+                                     (s, p, cert, issuer),

+                                    DECLINED, DECLINED)

+

+APR_IMPLEMENT_OPTIONAL_HOOK_RUN_ALL(ssl, SSL, int, get_stapling_status,

+                                    (unsigned char **pder, int *pderlen, 

+                                     conn_rec *c, server_rec *s, X509 *cert),

+                                     (pder, pderlen, c, s, cert), 

+                                    DECLINED, DECLINED)

+                         

 #ifdef HAVE_OCSP_STAPLING

 static int stapling_cache_mutex_on(server_rec *s);

 static int stapling_cache_mutex_off(server_rec *s);

+static int stapling_cb(SSL *ssl, void *arg);

+

 /**

  * Maxiumum OCSP stapling response size. This should be the response for a

  * single certificate and will typically include the responder certificate chain

@@ -119,7 +135,38 @@ int ssl_stapling_init_cert(server_rec *s, apr_pool_t *p, apr_pool_t *ptemp,

     OCSP_CERTID *cid = NULL;

     STACK_OF(OPENSSL_STRING) *aia = NULL;

-    if ((x == NULL) || (X509_digest(x, EVP_sha1(), idx, NULL) != 1))

+    if (x == NULL)

+        return 0;

+

+    if (!(issuer = stapling_get_issuer(mctx, x))) {

+        /* In Apache pre 2.4.40, we use to come here only when mod_ssl stapling

+         * was enabled. With the new hooks, we give other modules the chance

+         * to provide stapling status. However, we do not want to log ssl errors

+         * where we did not do so in the past. */

+        if (mctx->stapling_enabled == TRUE) {

+            ssl_log_xerror(SSLLOG_MARK, APLOG_ERR, 0, ptemp, s, x, APLOGNO(02217)

+                           "ssl_stapling_init_cert: can't retrieve issuer "

+                           "certificate!");

+            return 0;

+        }

+        return 1;

+    }

+

+    if (ssl_run_init_stapling_status(s, p, x, issuer) == APR_SUCCESS) {

+        /* Someone's taken over or mod_ssl's own implementation is not enabled */

+        if (mctx->stapling_enabled != TRUE) {

+            SSL_CTX_set_tlsext_status_cb(mctx->ssl_ctx, stapling_cb);

+            ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, APLOGNO() "OCSP stapling added via hook");

+        }

+        return 1;

+    }

+    

+    if (mctx->stapling_enabled != TRUE) {

+        /* mod_ssl's own implementation is not enabled */

+        return 1;

+    }

+    

+    if (X509_digest(x, EVP_sha1(), idx, NULL) != 1)

         return 0;

     cinf = apr_hash_get(stapling_certinfo, idx, sizeof(idx));

@@ -139,13 +186,6 @@ int ssl_stapling_init_cert(server_rec *s, apr_pool_t *p, apr_pool_t *ptemp,

         return 1;

     }

-    if (!(issuer = stapling_get_issuer(mctx, x))) {

-        ssl_log_xerror(SSLLOG_MARK, APLOG_ERR, 0, ptemp, s, x, APLOGNO(02217)

-                       "ssl_stapling_init_cert: can't retrieve issuer "

-                       "certificate!");

-        return 0;

-    }

-

     cid = OCSP_cert_to_id(NULL, x, issuer);

     X509_free(issuer);

     if (!cid) {

@@ -182,18 +222,16 @@ int ssl_stapling_init_cert(server_rec *s, apr_pool_t *p, apr_pool_t *ptemp,

                    mctx->sc->vhost_id);

     apr_hash_set(stapling_certinfo, cinf->idx, sizeof(cinf->idx), cinf);

-

+    

     return 1;

 }

-static certinfo *stapling_get_certinfo(server_rec *s, modssl_ctx_t *mctx,

+static certinfo *stapling_get_certinfo(server_rec *s, X509 *x, modssl_ctx_t *mctx,

                                         SSL *ssl)

 {

     certinfo *cinf;

-    X509 *x;

     UCHAR idx[SHA_DIGEST_LENGTH];

-    x = SSL_get_certificate(ssl);

-    if ((x == NULL) || (X509_digest(x, EVP_sha1(), idx, NULL) != 1))

+    if (X509_digest(x, EVP_sha1(), idx, NULL) != 1)

         return NULL;

     cinf = apr_hash_get(stapling_certinfo, idx, sizeof(idx));

     if (cinf && cinf->cid)

@@ -750,18 +788,34 @@ static int stapling_cb(SSL *ssl, void *arg)

     OCSP_RESPONSE *rsp = NULL;

     int rv;

     BOOL ok = TRUE;

+    X509 *x;

+    unsigned char *rspder = NULL;

+    int rspderlen;

+    ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, APLOGNO(01951)

+                 "stapling_cb: OCSP Stapling callback called");

+

+    x = SSL_get_certificate(ssl);

+    if (x == NULL) {

+        return SSL_TLSEXT_ERR_NOACK;

+    }

+

+    if (ssl_run_get_stapling_status(&rspder, &rspderlen, conn, s, x) == APR_SUCCESS) {

+        /* a hook handles stapling for this certicate and determines the response */

+        if (rspder == NULL || rspderlen <= 0) {

+            return SSL_TLSEXT_ERR_NOACK;

+        }

+        SSL_set_tlsext_status_ocsp_resp(ssl, rspder, rspderlen);

+        return SSL_TLSEXT_ERR_OK;

+    }

+    

     if (sc->server->stapling_enabled != TRUE) {

         ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, APLOGNO(01950)

                      "stapling_cb: OCSP Stapling disabled");

         return SSL_TLSEXT_ERR_NOACK;

     }

-    ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, APLOGNO(01951)

-                 "stapling_cb: OCSP Stapling callback called");

-

-    cinf = stapling_get_certinfo(s, mctx, ssl);

-    if (cinf == NULL) {

+    if ((cinf = stapling_get_certinfo(s, x, mctx, ssl)) == NULL) {

         return SSL_TLSEXT_ERR_NOACK;

     }

@@ -864,9 +918,10 @@ apr_status_t modssl_init_stapling(server_rec *s, apr_pool_t *p,

     if (mctx->stapling_responder_timeout == UNSET) {

         mctx->stapling_responder_timeout = 10 * APR_USEC_PER_SEC;

     }

+

     SSL_CTX_set_tlsext_status_cb(ctx, stapling_cb);

     ap_log_error(APLOG_MARK, APLOG_DEBUG, 0, s, APLOGNO(01960) "OCSP stapling initialized");

-

+    

     return APR_SUCCESS;

 }