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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libc/] [stdio/] [vsnprintf.c] - Blame information for rev 158

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Line No. Rev Author Line
1 148 jeremybenn
/*
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 * Copyright (c) 1990 The Regents of the University of California.
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms are permitted
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 * provided that the above copyright notice and this paragraph are
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 * duplicated in all such forms and that any documentation,
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 * advertising materials, and other materials related to such
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 * distribution and use acknowledge that the software was developed
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 * by the University of California, Berkeley.  The name of the
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 * University may not be used to endorse or promote products derived
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 * from this software without specific prior written permission.
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 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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 */
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/* doc in vfprintf.c */
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#if defined(LIBC_SCCS) && !defined(lint)
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static char sccsid[] = "%W% (Berkeley) %G%";
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#endif /* LIBC_SCCS and not lint */
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#include <_ansi.h>
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#include <reent.h>
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#include <stdio.h>
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#include <limits.h>
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#include <stdarg.h>
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#include <errno.h>
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#ifndef _REENT_ONLY
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int
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_DEFUN(vsnprintf, (str, size, fmt, ap),
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       char *str        _AND
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       size_t size      _AND
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       const char *fmt _AND
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       va_list ap)
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{
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  return _vsnprintf_r (_REENT, str, size, fmt, ap);
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}
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#endif /* !_REENT_ONLY */
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int
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_DEFUN(_vsnprintf_r, (ptr, str, size, fmt, ap),
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       struct _reent *ptr _AND
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       char *str          _AND
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       size_t size        _AND
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       const char *fmt   _AND
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       va_list ap)
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{
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  int ret;
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  FILE f;
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  if (size > INT_MAX)
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    {
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      ptr->_errno = EOVERFLOW;
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      return EOF;
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    }
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  f._flags = __SWR | __SSTR;
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  f._bf._base = f._p = (unsigned char *) str;
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  f._bf._size = f._w = (size > 0 ? size - 1 : 0);
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  f._file = -1;  /* No file. */
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  ret = _svfprintf_r (ptr, &f, fmt, ap);
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  if (ret < EOF)
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    ptr->_errno = EOVERFLOW;
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  if (size > 0)
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    *f._p = 0;
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  return ret;
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}

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