1 files changed, 82 insertions, 0 deletions
diff --git a/modules/md/md_os.c b/modules/md/md_os.c
new file mode 100644
index 0000000000..3379acbc2a
--- /dev/null
+++ b/modules/md/md_os.c
@@ -0,0 +1,82 @@
+/* Copyright 2017 greenbytes GmbH (https://www.greenbytes.de)
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <assert.h>
+#include <apr_strings.h>
+
+#include <mpm_common.h>
+#include <httpd.h>
+#include <http_log.h>
+#include <ap_mpm.h>
+
+#if APR_HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef WIN32
+#include "mpm_winnt.h"
+#endif
+#if AP_NEED_SET_MUTEX_PERMS
+#include "unixd.h"
+#endif
+
+#include "md_util.h"
+#include "md_os.h"
+
+apr_status_t md_try_chown(const char *fname, int uid, int gid, apr_pool_t *p)
+{
+#if AP_NEED_SET_MUTEX_PERMS
+    if (-1 == chown(fname, (uid_t)uid, (gid_t)gid)) {
+        apr_status_t rv = APR_FROM_OS_ERROR(errno);
+        if (!APR_STATUS_IS_ENOENT(rv)) {
+            ap_log_perror(APLOG_MARK, APLOG_ERR, rv, p, APLOGNO()
+                         "Can't change owner of %s", fname);
+        }
+        return rv;
+    }
+    return APR_SUCCESS;
+#else 
+    return APR_ENOTIMPL;
+#endif
+}
+
+apr_status_t md_make_worker_accessible(const char *fname, apr_pool_t *p)
+{
+#if AP_NEED_SET_MUTEX_PERMS
+    return md_try_chown(fname, ap_unixd_config.user_id, -1, p);
+#else 
+    return APR_ENOTIMPL;
+#endif
+}
+
+#ifdef WIN32
+
+apr_status_t md_server_graceful(apr_pool_t *p, server_rec *s)
+{
+    return APR_ENOTIMPL;
+}
+ 
+#else
+
+apr_status_t md_server_graceful(apr_pool_t *p, server_rec *s)
+{ 
+    apr_status_t rv;
+    
+    rv = (kill(getppid(), AP_SIG_GRACEFUL) < 0)? APR_ENOTIMPL : APR_SUCCESS;
+    ap_log_error(APLOG_MARK, APLOG_TRACE1, errno, NULL, "sent signal to parent");
+    return rv;
+}
+
+#endif
+