blob: 41cf3c288a109939ececfcacdd4ad2887e2d5090 (
plain) (
tree)
|
|
/*
* 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>
/*
* Instantiate an error checking wrapper for strtol (int)
*/
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;
}
|