1/*
2 * Copyright (c) 2007, 2010 Apple Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24#ifndef _STDIO_H_
25 #error error "Never use <secure/_stdio.h> directly; include <stdio.h> instead."
26#endif
27
28#ifndef _SECURE__STDIO_H_
29#define _SECURE__STDIO_H_
30
31#include <secure/_common.h>
32
33#if _USE_FORTIFY_LEVEL > 0
34
35#ifndef __has_builtin
36#define _undef__has_builtin
37#define __has_builtin(x) 0
38#endif
39
40/* sprintf, vsprintf, snprintf, vsnprintf */
41#if __has_builtin(__builtin___sprintf_chk) || defined(__GNUC__)
42extern int __sprintf_chk (char * __restrict, int, size_t,
43			  const char * __restrict, ...);
44
45#undef sprintf
46#define sprintf(str, ...) \
47  __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
48#endif
49
50#if __DARWIN_C_LEVEL >= 200112L
51#if __has_builtin(__builtin___snprintf_chk) || defined(__GNUC__)
52extern int __snprintf_chk (char * __restrict, size_t, int, size_t,
53			   const char * __restrict, ...);
54
55#undef snprintf
56#define snprintf(str, len, ...) \
57  __builtin___snprintf_chk (str, len, 0, __darwin_obsz(str), __VA_ARGS__)
58#endif
59
60#if __has_builtin(__builtin___vsprintf_chk) || defined(__GNUC__)
61extern int __vsprintf_chk (char * __restrict, int, size_t,
62			   const char * __restrict, va_list);
63
64#undef vsprintf
65#define vsprintf(str, format, ap) \
66  __builtin___vsprintf_chk (str, 0, __darwin_obsz(str), format, ap)
67#endif
68
69#if __has_builtin(__builtin___vsnprintf_chk) || defined(__GNUC__)
70extern int __vsnprintf_chk (char * __restrict, size_t, int, size_t,
71			    const char * __restrict, va_list);
72
73#undef vsnprintf
74#define vsnprintf(str, len, format, ap) \
75  __builtin___vsnprintf_chk (str, len, 0, __darwin_obsz(str), format, ap)
76#endif
77
78#endif /* __DARWIN_C_LEVEL >= 200112L */
79
80#ifdef _undef__has_builtin
81#undef _undef__has_builtin
82#undef __has_builtin
83#endif
84
85#endif /* _USE_FORTIFY_LEVEL > 0 */
86#endif /* _SECURE__STDIO_H_ */
87