newlib/libc/include/ssp/stdio.h

   1 /*      $NetBSD: stdio.h,v 1.5 2011/07/17 20:54:34 joerg Exp $  */
   2
   3 /*-
   4  * Copyright (c) 2006 The NetBSD Foundation, Inc.
   5  * All rights reserved.
   6  *
   7  * This code is derived from software contributed to The NetBSD Foundation
   8  * by Christos Zoulas.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  29  * POSSIBILITY OF SUCH DAMAGE.
  30  */
  31 #ifndef _SSP_STDIO_H_
  32 #define _SSP_STDIO_H_
  33
  34 #include <ssp/ssp.h>
  35
  36 __BEGIN_DECLS
  37 int __sprintf_chk(char *__restrict, int, size_t, const char *__restrict, ...)
  38     __printflike(4, 5);
  39 int __vsprintf_chk(char *__restrict, int, size_t, const char *__restrict,
  40     __va_list)
  41     __printflike(4, 0);
  42 int __snprintf_chk(char *__restrict, size_t, int, size_t,
  43     const char *__restrict, ...)
  44     __printflike(5, 6);
  45 int __vsnprintf_chk(char *__restrict, size_t, int, size_t,
  46      const char *__restrict, __va_list)
  47     __printflike(5, 0);
  48 char *__gets_chk(char *, size_t);
  49 __END_DECLS
  50
  51 #if __SSP_FORTIFY_LEVEL > 0
  52
  53
  54 #define sprintf(str, ...) \
  55     __builtin___sprintf_chk(str, 0, __ssp_bos(str), __VA_ARGS__)
  56
  57 #define vsprintf(str, fmt, ap) \
  58     __builtin___vsprintf_chk(str, 0, __ssp_bos(str), fmt, ap)
  59
  60 #define snprintf(str, len, ...) \
  61     __builtin___snprintf_chk(str, len, 0, __ssp_bos(str), __VA_ARGS__)
  62
  63 #define vsnprintf(str, len, fmt, ap) \
  64     __builtin___vsnprintf_chk(str, len, 0, __ssp_bos(str), fmt, ap)
  65
  66 #define gets(str) \
  67     __gets_chk(str, __ssp_bos(str))
  68
  69 __ssp_decl(char *, fgets, (char *__restrict __buf, int __len, FILE *__fp))
  70 {
  71   if (__len > 0)
  72     __ssp_check(__buf, (size_t)__len, __ssp_bos);
  73   return __ssp_real_fgets(__buf, __len, __fp);
  74 }
  75
  76 #if __GNU_VISIBLE
  77 __ssp_decl(char *, fgets_unlocked, (char *__restrict __buf, int __len, FILE *__fp))
  78 {
  79   if (__len > 0)
  80     __ssp_check(__buf, (size_t)__len, __ssp_bos);
  81   return __ssp_real_fgets_unlocked(__buf, __len, __fp);
  82 }
  83 #endif /* __GNU_VISIBLE */
  84
  85 __ssp_decl(size_t, fread, (void *__restrict __ptr, size_t __size, size_t __n, FILE *__restrict __fp))
  86 {
  87   __ssp_check(__ptr, __size * __n, __ssp_bos0);
  88   return __ssp_real_fread(__ptr, __size, __n, __fp);
  89 }
  90
  91 #if __MISC_VISIBLE
  92 __ssp_decl(size_t, fread_unlocked, (void *__restrict __ptr, size_t __size, size_t __n, FILE *__restrict __fp))
  93 {
  94   __ssp_check(__ptr, __size * __n, __ssp_bos0);
  95   return __ssp_real_fread_unlocked(__ptr, __size, __n, __fp);
  96 }
  97 #endif /* __MISC_VISIBLE */
  98
  99 #endif /* __SSP_FORTIFY_LEVEL > 0 */
 100
 101 #endif /* _SSP_STDIO_H_ */