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-rw-r--r--cpukit/libmisc/stringto/stringtoint.c63
1 files changed, 57 insertions, 6 deletions
diff --git a/cpukit/libmisc/stringto/stringtoint.c b/cpukit/libmisc/stringto/stringtoint.c
index c07748ab00..41cf3c288a 100644
--- a/cpukit/libmisc/stringto/stringtoint.c
+++ b/cpukit/libmisc/stringto/stringtoint.c
@@ -2,6 +2,8 @@
* 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.
@@ -13,12 +15,61 @@
#include "config.h"
#endif
+#include <errno.h>
+#include <stdlib.h>
+#include <limits.h>
+
+#include <rtems/stringto.h>
+
/*
* Instantiate an error checking wrapper for strtol (int)
*/
-#define STRING_TO_INTEGER
-#define STRING_TO_TYPE int
-#define STRING_TO_NAME rtems_string_to_int
-#define STRING_TO_METHOD strtol
-#define STRING_TO_MAX LONG_MAX
-#include "stringto_template.h"
+
+rtems_status_code rtems_string_to_int (
+ const char *s,
+ int *n,
+ char **endptr,
+ int base
+)
+{
+ long result;
+ char *end;
+
+ if ( !n )
+ return RTEMS_INVALID_ADDRESS;
+
+ errno = 0;
+ *n = 0;
+
+ result = strtol( s, &end, base );
+
+ if ( endptr )
+ *endptr = end;
+
+ if ( end == s )
+ return RTEMS_NOT_DEFINED;
+
+ if ( (result == LONG_MAX) && (errno == ERANGE) )
+ return RTEMS_INVALID_NUMBER;
+
+ if ( (result == LONG_MIN) && (errno == ERANGE) )
+ return RTEMS_INVALID_NUMBER;
+
+#if (INT_MAX < LONG_MAX)
+ if ( result > INT_MAX ) {
+ errno = ERANGE;
+ return RTEMS_INVALID_NUMBER;
+ }
+#endif
+
+#if (INT_MIN < LONG_MIN)
+ if ( result < INT_MIN ) {
+ errno = ERANGE;
+ return RTEMS_INVALID_NUMBER;
+ }
+#endif
+
+ *n = result;
+
+ return RTEMS_SUCCESSFUL;
+}