1 files changed, 97 insertions, 0 deletions
diff --git a/apps/graphics/traveler/src/trv_fsutils.c b/apps/graphics/traveler/src/trv_fsutils.c
new file mode 100644
index 000000000..ad0f8d30d
--- /dev/null
+++ b/apps/graphics/traveler/src/trv_fsutils.c
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+/*******************************************************************************
+ * apps/graphics/traveler/src/trv_fsutils.c
+ * Miscellaneous file access utilities
+ *
+ *   Copyright (C) 2014 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 "trv_types.h"
+#include "trv_fsutils.h"
+
+#include <stdio.h>
+#include <ctype.h>
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: trv_read_decimal
+ *
+ * Description:
+ *   Read a decimal number from the steam 'fp'
+ *
+ ***************************************************************************/
+
+int16_t trv_read_decimal(FAR FILE *fp)
+{
+  int16_t value = 0;
+  bool negative = false;
+  int ch;
+
+  /* Skip over any leading whitespace  */
+
+  do
+    {
+      ch = getc(fp);
+    }
+  while (isspace(ch));
+
+  /* if the first character is '-', then its a negative number */
+
+  if (ch == '-')
+    {
+      negative = true;
+      ch = getc(fp);
+    }
+
+  /* Now get the unsigned portion of the number */
+
+  while (ch >= '0' && ch <= '9')
+    {
+      value = 10  *value + (ch - (int)'0');
+      ch = getc(fp);
+    }
+
+  /* Apply the negation, if appropriate */
+
+  if (negative)
+    {
+      value = -value;
+    }
+
+  return value;
+}