include/ssp/stdio.h

   1 /*      $NetBSD: stdio.h,v 1.5 2011/07/17 20:54:34 joerg Exp $  */
   2
   3 /*-
   4  *
   5  * SPDX-License-Identifier: BSD-2-Clause
   6  *
   7  * Copyright (c) 2006 The NetBSD Foundation, Inc.
   8  * All rights reserved.
   9  *
  10  * This code is derived from software contributed to The NetBSD Foundation
  11  * by Christos Zoulas.
  12  *
  13  * Redistribution and use in source and binary forms, with or without
  14  * modification, are permitted provided that the following conditions
  15  * are met:
  16  * 1. Redistributions of source code must retain the above copyright
  17  *    notice, this list of conditions and the following disclaimer.
  18  * 2. Redistributions in binary form must reproduce the above copyright
  19  *    notice, this list of conditions and the following disclaimer in the
  20  *    documentation and/or other materials provided with the distribution.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  23  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  24  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  25  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  26  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  */
  34 #ifndef _SSP_STDIO_H_
  35 #define _SSP_STDIO_H_
  36
  37 #include <ssp/ssp.h>
  38
  39 __BEGIN_DECLS
  40 #if __SSP_FORTIFY_LEVEL > 0
  41 #if __POSIX_VISIBLE
  42 __ssp_redirect_raw(char *, ctermid, ctermid, (char *__buf), (__buf),
  43     __buf != NULL, __ssp_bos, L_ctermid);
  44 #if __BSD_VISIBLE
  45 __ssp_redirect_raw(char *, ctermid_r, ctermid_r, (char *__buf), (__buf),
  46     __buf != NULL, __ssp_bos, L_ctermid);
  47 #endif /* __BSD_VISIBLE */
  48 #endif /* __POSIX_VISIBLE */
  49 __ssp_redirect(size_t, fread, (void *__restrict __buf, size_t __len,
  50     size_t __nmemb, FILE *__restrict __fp), (__buf, __len, __nmemb, __fp));
  51 __ssp_redirect(size_t, fread_unlocked, (void *__restrict __buf, size_t __len,
  52     size_t __nmemb, FILE *__restrict __fp), (__buf, __len, __nmemb, __fp));
  53 #if __EXT1_VISIBLE
  54 __ssp_redirect(char *, gets_s, (char *__buf, rsize_t __len), (__buf, __len));
  55 #endif /* __EXT1_VISIBLE */
  56 __ssp_redirect_raw(char *, tmpnam, tmpnam, (char *__buf), (__buf), 1,
  57     __ssp_bos, L_tmpnam);
  58 #endif
  59
  60 int __sprintf_chk(char *__restrict, int, size_t, const char *__restrict, ...)
  61     __printflike(4, 5);
  62 int __vsprintf_chk(char *__restrict, int, size_t, const char *__restrict,
  63     __va_list)
  64     __printflike(4, 0);
  65 int __snprintf_chk(char *__restrict, size_t, int, size_t,
  66     const char *__restrict, ...)
  67     __printflike(5, 6);
  68 int __vsnprintf_chk(char *__restrict, size_t, int, size_t,
  69      const char *__restrict, __va_list)
  70     __printflike(5, 0);
  71 char *__fgets_chk(char *, int, size_t, FILE *);
  72 __END_DECLS
  73
  74 #if __SSP_FORTIFY_LEVEL > 0
  75
  76 #define sprintf(str, ...) __extension__ ({      \
  77     char *_ssp_str = (str);     \
  78     __builtin___sprintf_chk(_ssp_str, 0, __ssp_bos(_ssp_str),           \
  79         __VA_ARGS__); \
  80 })
  81
  82 #define vsprintf(str, fmt, ap) __extension__ ({ \
  83     char *_ssp_str = (str);             \
  84     __builtin___vsprintf_chk(_ssp_str, 0, __ssp_bos(_ssp_str), fmt,     \
  85         ap);                            \
  86 })
  87
  88 #define snprintf(str, len, ...) __extension__ ({        \
  89     char *_ssp_str = (str);             \
  90     __builtin___snprintf_chk(_ssp_str, len, 0, __ssp_bos(_ssp_str),     \
  91         __VA_ARGS__);                   \
  92 })
  93
  94 #define vsnprintf(str, len, fmt, ap) __extension__ ({   \
  95     char *_ssp_str = (str);             \
  96     __builtin___vsnprintf_chk(_ssp_str, len, 0, __ssp_bos(_ssp_str),    \
  97         fmt, ap);                       \
  98 })
  99
 100 #define fgets(str, len, fp) __extension__ ({            \
 101     char *_ssp_str = (str);             \
 102     __fgets_chk(_ssp_str, len, __ssp_bos(_ssp_str), fp);        \
 103 })
 104
 105 #endif /* __SSP_FORTIFY_LEVEL > 0 */
 106
 107 #endif /* _SSP_STDIO_H_ */