1 files changed, 91 insertions, 0 deletions
diff --git a/nuttx/libc/spawn/lib_psfa_addaction.c b/nuttx/libc/spawn/lib_psfa_addaction.c
new file mode 100644
index 000000000..3f297d7cf
--- /dev/null
+++ b/nuttx/libc/spawn/lib_psfa_addaction.c
@@ -0,0 +1,91 @@
+/****************************************************************************
+ * libc/string/lib_psfa_addaction.c
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <spawn.h>
+
+#include "spawn/spawn.h"
+
+/****************************************************************************
+ * Global Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: add_file_action
+ *
+ * Description:
+ *   Add the file action to the end for the file action list.
+ *
+ * Input Parameters:
+ *   file_actions - The head of the file action list.
+ *   entry - The file action to be added
+ *
+ * Returned Value:
+ *   None
+ *
+ ****************************************************************************/
+
+void add_file_action(FAR posix_spawn_file_actions_t *file_actions,
+                     FAR struct spawn_general_file_action_s *entry)
+{
+  FAR struct spawn_general_file_action_s *prev;
+  FAR struct spawn_general_file_action_s *next;
+
+  /* Find the end of the list */
+
+  for (prev = NULL, next = (FAR struct spawn_general_file_action_s *)*file_actions;
+       next;
+       prev = next, next = next->flink);
+
+  /* Here next is NULL and prev points to the last entry in the list (or
+   * is NULL if the list is empty).
+   */
+
+  if (prev)
+    {
+      prev->flink = entry;
+    }
+  else
+    {
+      *file_actions = (posix_spawn_file_actions_t)entry;
+    }
+
+  entry->flink = NULL;
+}