1 files changed, 124 insertions, 0 deletions
diff --git a/file_io/os2/filedup.c b/file_io/os2/filedup.c
new file mode 100644
index 0000000..86f06f3
--- /dev/null
+++ b/file_io/os2/filedup.c
@@ -0,0 +1,124 @@
+/* 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 "apr_arch_file_io.h"
+#include "apr_file_io.h"
+#include "apr_lib.h"
+#include "apr_strings.h"
+#include <string.h>
+#include "apr_arch_inherit.h"
+
+static apr_status_t file_dup(apr_file_t **new_file, apr_file_t *old_file, apr_pool_t *p)
+{
+    int rv;
+    apr_file_t *dup_file;
+
+    if (*new_file == NULL) {
+        dup_file = (apr_file_t *)apr_palloc(p, sizeof(apr_file_t));
+
+        if (dup_file == NULL) {
+            return APR_ENOMEM;
+        }
+
+        dup_file->filedes = -1;
+    } else {
+      dup_file = *new_file;
+    }
+
+    dup_file->pool = p;
+    rv = DosDupHandle(old_file->filedes, &dup_file->filedes);
+
+    if (rv) {
+        return APR_FROM_OS_ERROR(rv);
+    }
+
+    dup_file->fname = apr_pstrdup(dup_file->pool, old_file->fname);
+    dup_file->buffered = old_file->buffered;
+    dup_file->isopen = old_file->isopen;
+    dup_file->flags = old_file->flags & ~APR_INHERIT;
+    /* TODO - dup pipes correctly */
+    dup_file->pipe = old_file->pipe;
+
+    if (*new_file == NULL) {
+        apr_pool_cleanup_register(dup_file->pool, dup_file, apr_file_cleanup,
+                            apr_pool_cleanup_null);
+        *new_file = dup_file;
+    }
+
+    return APR_SUCCESS;
+}
+
+
+
+APR_DECLARE(apr_status_t) apr_file_dup(apr_file_t **new_file, apr_file_t *old_file, apr_pool_t *p)
+{
+  if (*new_file) {
+      apr_file_close(*new_file);
+      (*new_file)->filedes = -1;
+  }
+
+  return file_dup(new_file, old_file, p);
+}
+
+
+
+APR_DECLARE(apr_status_t) apr_file_dup2(apr_file_t *new_file, apr_file_t *old_file, apr_pool_t *p)
+{
+  return file_dup(&new_file, old_file, p);
+}
+
+
+
+APR_DECLARE(apr_status_t) apr_file_setaside(apr_file_t **new_file,
+                                            apr_file_t *old_file,
+                                            apr_pool_t *p)
+{
+    *new_file = (apr_file_t *)apr_pmemdup(p, old_file, sizeof(apr_file_t));
+    (*new_file)->pool = p;
+
+    if (old_file->buffered) {
+        (*new_file)->buffer = apr_palloc(p, old_file->bufsize);
+        (*new_file)->bufsize = old_file->bufsize;
+
+        if (old_file->direction == 1) {
+            memcpy((*new_file)->buffer, old_file->buffer, old_file->bufpos);
+        }
+        else {
+            memcpy((*new_file)->buffer, old_file->buffer, old_file->dataRead);
+        }
+
+        if (old_file->mutex) {
+            apr_thread_mutex_create(&((*new_file)->mutex),
+                                    APR_THREAD_MUTEX_DEFAULT, p);
+            apr_thread_mutex_destroy(old_file->mutex);
+        }
+    }
+
+    if (old_file->fname) {
+        (*new_file)->fname = apr_pstrdup(p, old_file->fname);
+    }
+
+    if (!(old_file->flags & APR_FOPEN_NOCLEANUP)) {
+        apr_pool_cleanup_kill(old_file->pool, (void *)old_file,
+                              apr_file_cleanup);
+        apr_pool_cleanup_register(p, (void *)(*new_file), 
+                                  apr_file_cleanup,
+                                  apr_file_cleanup);
+    }
+
+    old_file->filedes = -1;
+    return APR_SUCCESS;
+}