Subversion Repositories openrisc_2011-10-31

/*

 * Copyright (c) 1990, 2007 The Regents of the University of California.

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms are permitted

 * provided that the above copyright notice and this paragraph are

 * duplicated in all such forms and that any documentation,

 * advertising materials, and other materials related to such

 * distribution and use acknowledge that the software was developed

 * by the University of California, Berkeley.  The name of the

 * University may not be used to endorse or promote products derived

 * from this software without specific prior written permission.

 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR

 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED

 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

 */

/* doc in sprintf.c */

/* This code created by modifying sprintf.c so copyright inherited. */

#include <_ansi.h>

#include <reent.h>

#include <stdio.h>

#ifdef _HAVE_STDC

#include <stdarg.h>

#else

#include <varargs.h>

#endif

#include <limits.h>

#include <errno.h>

#include "local.h"

int

#ifdef _HAVE_STDC

_DEFUN(_snprintf_r, (ptr, str, size, fmt),

       struct _reent *ptr _AND

       char *str          _AND

       size_t size        _AND

       _CONST char *fmt _DOTS)

#else

_snprintf_r(ptr, str, size, fmt, va_alist)

            struct _reent *ptr;

            char *str;

            size_t size;

            _CONST char *fmt;

            va_dcl

#endif

{

  int ret;

  va_list ap;

  FILE f;

  if (size > INT_MAX)

    {

      ptr->_errno = EOVERFLOW;

      return EOF;

    }

  f._flags = __SWR | __SSTR;

  f._bf._base = f._p = (unsigned char *) str;

  f._bf._size = f._w = (size > 0 ? size - 1 : 0);

  f._file = -1;  /* No file. */

#ifdef _HAVE_STDC

  va_start (ap, fmt);

#else

  va_start (ap);

#endif

  ret = _svfprintf_r (ptr, &f, fmt, ap);

  va_end (ap);

  if (ret < EOF)

    ptr->_errno = EOVERFLOW;

  if (size > 0)

    *f._p = 0;

  return (ret);

}

#ifndef _REENT_ONLY

int

#ifdef _HAVE_STDC

_DEFUN(snprintf, (str, size, fmt),

       char *str   _AND

       size_t size _AND

       _CONST char *fmt _DOTS)

#else

snprintf(str, size, fmt, va_alist)

         char *str;

         size_t size;

         _CONST char *fmt;

         va_dcl

#endif

{

  int ret;

  va_list ap;

  FILE f;

  struct _reent *ptr = _REENT;

  if (size > INT_MAX)

    {

      ptr->_errno = EOVERFLOW;

      return EOF;

    }

  f._flags = __SWR | __SSTR;

  f._bf._base = f._p = (unsigned char *) str;

  f._bf._size = f._w = (size > 0 ? size - 1 : 0);

  f._file = -1;  /* No file. */

#ifdef _HAVE_STDC

  va_start (ap, fmt);

#else

  va_start (ap);

#endif

  ret = _svfprintf_r (ptr, &f, fmt, ap);

  va_end (ap);

  if (ret < EOF)

    ptr->_errno = EOVERFLOW;

  if (size > 0)

    *f._p = 0;

  return (ret);

}

#endif