1 files changed, 64 insertions, 0 deletions
diff --git a/cpukit/libmisc/stringto/stringtounsignedlonglong.c b/cpukit/libmisc/stringto/stringtounsignedlonglong.c
new file mode 100644
index 0000000000..61c6e2e063
--- /dev/null
+++ b/cpukit/libmisc/stringto/stringtounsignedlonglong.c
@@ -0,0 +1,64 @@
+/*
+ *  COPYRIGHT (c) 2009.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  Copyright (c) 2011  Ralf Corsépius, Ulm, Germany.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <errno.h>
+#include <stdlib.h>
+#include <limits.h>
+
+#include <rtems/stringto.h>
+
+/* c99 has ULLONG_MAX instead of ULONG_LONG_MAX */
+#ifndef ULONG_LONG_MAX
+#define ULONG_LONG_MAX	ULLONG_MAX
+#endif
+
+/*
+ *  Instantiate an error checking wrapper for strtoull (unsigned long long)
+ */
+
+rtems_status_code rtems_string_to_unsigned_long_long (
+  const char *s,
+  unsigned long long *n,
+  char **endptr,
+  int base
+)
+{
+  unsigned long long result;
+  char *end;
+
+  if ( !n )
+    return RTEMS_INVALID_ADDRESS;
+
+  errno = 0;
+  *n = 0;
+
+  result = strtoull( s, &end, base );
+
+  if ( endptr )
+    *endptr = end;
+
+  if ( end == s )
+    return RTEMS_NOT_DEFINED;
+
+  if ( ( errno == ERANGE ) && 
+    (( result == 0 ) || ( result == ULONG_LONG_MAX )))
+      return RTEMS_INVALID_NUMBER;
+
+  *n = result;
+
+  return RTEMS_SUCCESSFUL;
+}