1 files changed, 43 insertions, 0 deletions
diff --git a/mmap/unix/common.c b/mmap/unix/common.c
new file mode 100644
index 0000000..1172f3c
--- /dev/null
+++ b/mmap/unix/common.c
@@ -0,0 +1,43 @@
+/* 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.
+ */
+
+/* common .c
+ * This file has any function that is truly common and platform
+ * neutral.  Or at least that's the theory.
+ * 
+ * The header files are a problem so there are a few #ifdef's to take
+ * care of those.
+ *
+ */
+
+#include "apr.h"
+#include "apr_private.h"
+#include "apr_mmap.h"
+#include "apr_errno.h"
+
+#if APR_HAS_MMAP || defined(BEOS)
+
+APR_DECLARE(apr_status_t) apr_mmap_offset(void **addr, apr_mmap_t *mmap,
+                                          apr_off_t offset)
+{
+    if (offset < 0 || (apr_size_t)offset > mmap->size)
+        return APR_EINVAL;
+    
+    (*addr) = (char *) mmap->mm + offset;
+    return APR_SUCCESS;
+}
+
+#endif