nes-proj/cpu/stm32w108/small-printf/sp-snprintf.c

/**
 * \addtogroup stm32w-cpu
 *
 * @{
 */

/*
 * Copyright (c) 1990 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 sp-sprintf.c */
/* This code created by modifying sp-sprintf.c so copyright inherited. */

#include <stdio.h>
#ifdef _HAVE_STDC
#include <stdarg.h>
#else
#include <varargs.h>
#endif
#include <limits.h>
#include <errno.h>
#include <_ansi.h>

#ifndef _SMALL_PRINTF
		#include "local.h"
#else
	#ifdef INTEGER_ONLY
		#define _vfprintf_r  _vfiprintf_r 
	#endif
#endif


#ifndef _SMALL_PRINTF
	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 = _vfprintf_r (ptr, &f, fmt, ap);
	  va_end (ap);
	  if (ret < EOF)
		ptr->_errno = EOVERFLOW;
	  if (size > 0)
		*f._p = 0;
	  return (ret);
	}
#endif

#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 = _vfprintf_r (ptr, &f, fmt, ap);
  va_end (ap);
  if (ret < EOF)
    ptr->_errno = EOVERFLOW;
  if (size > 0)
	*f._p = 0;
  return (ret);
}
#endif

/** @} */