1 files changed, 88 insertions, 0 deletions
diff --git a/modules/md/mod_md_os.c b/modules/md/mod_md_os.c
new file mode 100644
index 0000000..06a5bee
--- /dev/null
+++ b/modules/md/mod_md_os.c
@@ -0,0 +1,88 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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
+#if AP_NEED_SET_MUTEX_PERMS
+#include "unixd.h"
+#endif
+
+#include "md_util.h"
+#include "mod_md_os.h"
+
+apr_status_t md_try_chown(const char *fname, unsigned int uid, int gid, apr_pool_t *p)
+{
+#if AP_NEED_SET_MUTEX_PERMS && HAVE_UNISTD_H
+    /* Since we only switch user when running as root, we only need to chown directories
+     * in that case. Otherwise, the server will ignore any "user/group" directives and
+     * child processes have the same privileges as the parent.
+     */
+    if (!geteuid()) {
+        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(10082)
+                              "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)
+{
+#ifdef WIN32
+    return APR_ENOTIMPL;
+#else 
+    return md_try_chown(fname, ap_unixd_config.user_id, -1, p);
+#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;
+    
+    (void)p;
+    (void)s;
+    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
+