include/secure/_stdio.h

   1 /*
   2  * Copyright (c) 2007 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 #undef sprintf
  36 #undef vsprintf
  37 #undef snprintf
  38 #undef vsnprintf
  39
  40 /* sprintf, vsprintf, snprintf, vsnprintf */
  41
  42 extern int __sprintf_chk (char * __restrict, int, size_t,
  43                           const char * __restrict, ...)
  44   __DARWIN_LDBL_COMPAT (__sprintf_chk);
  45
  46 #define sprintf(str, ...) \
  47   __builtin___sprintf_chk (str, 0, __darwin_obsz(str), __VA_ARGS__)
  48
  49 extern int __snprintf_chk (char * __restrict, size_t, int, size_t,
  50                            const char * __restrict, ...)
  51   __DARWIN_LDBL_COMPAT (__snprintf_chk);
  52
  53 #define snprintf(str, len, ...) \
  54   __builtin___snprintf_chk (str, len, 0, __darwin_obsz(str), __VA_ARGS__)
  55
  56 extern int __vsprintf_chk (char * __restrict, int, size_t,
  57                            const char * __restrict, va_list)
  58   __DARWIN_LDBL_COMPAT (__vsprintf_chk);
  59
  60 #define vsprintf(str, format, ap) \
  61   __builtin___vsprintf_chk (str, 0, __darwin_obsz(str), format, ap)
  62
  63 extern int __vsnprintf_chk (char * __restrict, size_t, int, size_t,
  64                             const char * __restrict, va_list)
  65   __DARWIN_LDBL_COMPAT (__vsnprintf_chk);
  66
  67 #define vsnprintf(str, len, format, ap) \
  68   __builtin___vsnprintf_chk (str, len, 0, __darwin_obsz(str), format, ap)
  69
  70
  71 #endif
  72
  73 #endif