WebSVN – Kolibri OS – Diff – /contrib/sdk/sources/newlib/libc/stdio/vsnprintf.c


/*
 * 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 vfprintf.c */
 
#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "%W% (Berkeley) %G%";
#endif /* LIBC_SCCS and not lint */
 
#include <_ansi.h>
#include 
#include 
#include 
#include 
#include 
 
#include "local.h"
 
#ifndef _REENT_ONLY
 
int
_DEFUN(vsnprintf, (str, size, fmt, ap),
       char *__restrict str        _AND
       size_t size      _AND
       const char *__restrict fmt _AND
       va_list ap)
{
  return _vsnprintf_r (_REENT, str, size, fmt, ap);
}
 
#endif /* !_REENT_ONLY */
 
int
_DEFUN(_vsnprintf_r, (ptr, str, size, fmt, ap),
       struct _reent *ptr _AND
       char *__restrict str          _AND
       size_t size        _AND
       const char *__restrict fmt   _AND
       va_list ap)
{
  int ret;
  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. */
  ret = _svfprintf_r (ptr, &f, fmt, ap);
  if (ret < EOF)
    ptr->_errno = EOVERFLOW;
  if (size > 0)
    *f._p = 0;
  return ret;
}

Rev 4874	Rev 4921
1	/*	1	/*
2	* Copyright (c) 1990 The Regents of the University of California.	2	* Copyright (c) 1990 The Regents of the University of California.
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms are permitted	5	* Redistribution and use in source and binary forms are permitted
6	* provided that the above copyright notice and this paragraph are	6	* provided that the above copyright notice and this paragraph are
7	* duplicated in all such forms and that any documentation,	7	* duplicated in all such forms and that any documentation,
8	* advertising materials, and other materials related to such	8	* advertising materials, and other materials related to such
9	* distribution and use acknowledge that the software was developed	9	* distribution and use acknowledge that the software was developed
10	* by the University of California, Berkeley. The name of the	10	* by the University of California, Berkeley. The name of the
11	* University may not be used to endorse or promote products derived	11	* University may not be used to endorse or promote products derived
12	* from this software without specific prior written permission.	12	* from this software without specific prior written permission.
13	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR	13	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED	14	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.	15	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
16	*/	16	*/
17	/* doc in vfprintf.c */	17	/* doc in vfprintf.c */
18		18
19	#if defined(LIBC_SCCS) && !defined(lint)	19	#if defined(LIBC_SCCS) && !defined(lint)
20	static char sccsid[] = "%W% (Berkeley) %G%";	20	static char sccsid[] = "%W% (Berkeley) %G%";
21	#endif /* LIBC_SCCS and not lint */	21	#endif /* LIBC_SCCS and not lint */
22		22
23	#include <_ansi.h>	23	#include <_ansi.h>
24	#include	24	#include
25	#include	25	#include
26	#include	26	#include
27	#include	27	#include
28	#include	28	#include
29		29
30	#include "local.h"	30	#include "local.h"
31		31
32	#ifndef _REENT_ONLY	32	#ifndef _REENT_ONLY
33		33
34	int	34	int
35	_DEFUN(vsnprintf, (str, size, fmt, ap),	35	_DEFUN(vsnprintf, (str, size, fmt, ap),
36	char *str _AND	36	char *__restrict str _AND
37	size_t size _AND	37	size_t size _AND
38	const char *fmt _AND	38	const char *__restrict fmt _AND
39	va_list ap)	39	va_list ap)
40	{	40	{
41	return _vsnprintf_r (_REENT, str, size, fmt, ap);	41	return _vsnprintf_r (_REENT, str, size, fmt, ap);
42	}	42	}
43		43
44	#endif /* !_REENT_ONLY */	44	#endif /* !_REENT_ONLY */
45		45
46	int	46	int
47	_DEFUN(_vsnprintf_r, (ptr, str, size, fmt, ap),	47	_DEFUN(_vsnprintf_r, (ptr, str, size, fmt, ap),
48	struct _reent *ptr _AND	48	struct _reent *ptr _AND
49	char *str _AND	49	char *__restrict str _AND
50	size_t size _AND	50	size_t size _AND
51	const char *fmt _AND	51	const char *__restrict fmt _AND
52	va_list ap)	52	va_list ap)
53	{	53	{
54	int ret;	54	int ret;
55	FILE f;	55	FILE f;
56		56
57	if (size > INT_MAX)	57	if (size > INT_MAX)
58	{	58	{
59	ptr->_errno = EOVERFLOW;	59	ptr->_errno = EOVERFLOW;
60	return EOF;	60	return EOF;
61	}	61	}
62	f._flags = __SWR \| __SSTR;	62	f._flags = __SWR \| __SSTR;
63	f._bf._base = f._p = (unsigned char *) str;	63	f._bf._base = f._p = (unsigned char *) str;
64	f._bf._size = f._w = (size > 0 ? size - 1 : 0);	64	f._bf._size = f._w = (size > 0 ? size - 1 : 0);
65	f._file = -1; /* No file. */	65	f._file = -1; /* No file. */
66	ret = _svfprintf_r (ptr, &f, fmt, ap);	66	ret = _svfprintf_r (ptr, &f, fmt, ap);
67	if (ret < EOF)	67	if (ret < EOF)
68	ptr->_errno = EOVERFLOW;	68	ptr->_errno = EOVERFLOW;
69	if (size > 0)	69	if (size > 0)
70	*f._p = 0;	70	*f._p = 0;
71	return ret;	71	return ret;
72	}	72	}

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(root)/contrib/sdk/sources/newlib/libc/stdio/vsnprintf.c – Rev 4874 → 4921