1 files changed, 115 insertions, 0 deletions
diff --git a/misc/pascal/libpoff/pfrseek.c b/misc/pascal/libpoff/pfrseek.c
new file mode 100644
index 000000000..ea0b9c0aa
--- /dev/null
+++ b/misc/pascal/libpoff/pfrseek.c
@@ -0,0 +1,115 @@
+/**********************************************************************
+ * pfrseek.c
+ * Seek to a position in buffered program data from a  POFF file
+ *
+ *   Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include "keywords.h"  /* Standard types */
+#include "pedefs.h"    /* error code definitions */
+
+#include "perr.h"      /* error() */
+#include "pofflib.h"   /* POFF library interface */
+#include "pfprivate.h" /* POFF private definitions */
+
+/**********************************************************************
+ * Definitions
+ **********************************************************************/
+
+/**********************************************************************
+ * Global Variables
+ **********************************************************************/
+
+/**********************************************************************
+ * Private Variables
+ **********************************************************************/
+
+/***********************************************************************
+ * Private Function Prototypes
+ ***********************************************************************/
+
+/***********************************************************************
+ * Private Functions
+ ***********************************************************************/
+
+/***********************************************************************/
+
+sint32 poffProgTell(poffHandle_t handle)
+{
+  poffInfo_t *poffInfo = (poffInfo_t*)handle;
+  sint32 retval = -1;
+
+  /* Check if there is more data that has not yet been read */
+
+  if (poffInfo->progSectionData != NULL)
+    {
+      retval = poffInfo->progSectionIndex;
+    }
+  return retval;
+}
+
+/***********************************************************************/
+
+int poffProgSeek(poffHandle_t handle, uint32 offset)
+{
+  poffInfo_t *poffInfo = (poffInfo_t*)handle;
+  int retval = -1;
+
+  /* Check if there is more data that has not yet been read */
+
+  if ((offset < poffInfo->progSection.sh_size) &&
+      (poffInfo->progSectionData != NULL))
+    {
+      poffInfo->progSectionIndex = offset;
+      retval = offset;
+    }
+  return retval;
+}
+
+/***********************************************************************/
+
+uint32 poffGetProgSize(poffHandle_t handle)
+{
+  poffInfo_t *poffInfo = (poffInfo_t*)handle;
+  return poffInfo->progSection.sh_size;
+}
+
+/***********************************************************************/