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1/* Checking macros for stdio functions.
2 Copyright (C) 2004-2017 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify it under
7the terms of the GNU General Public License as published by the Free
8Software Foundation; either version 3, or (at your option) any later
9version.
10
11In addition to the permissions in the GNU General Public License, the
12Free Software Foundation gives you unlimited permission to link the
13compiled version of this file into combinations with other programs,
14and to distribute those combinations without any restriction coming
15from the use of this file. (The General Public License restrictions
16do apply in other respects; for example, they cover modification of
17the file, and distribution when not linked into a combine
18executable.)
19
20GCC is distributed in the hope that it will be useful, but WITHOUT ANY
21WARRANTY; without even the implied warranty of MERCHANTABILITY or
22FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
23for more details.
24
25Under Section 7 of GPL version 3, you are granted additional
26permissions described in the GCC Runtime Library Exception, version
273.1, as published by the Free Software Foundation.
28
29You should have received a copy of the GNU General Public License and
30a copy of the GCC Runtime Library Exception along with this program;
31see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
32<http://www.gnu.org/licenses/>. */
33
34
35#ifndef _SSP_STDIO_H
36#define _SSP_STDIO_H 1
37
38#include <ssp.h>
39#include_next <stdio.h>
40
41#if __SSP_FORTIFY_LEVEL > 0
42
43#include <stdarg.h>
44
45#undef sprintf
46#undef vsprintf
47#undef snprintf
48#undef vsnprintf
49#undef gets
50#undef fgets
51
52extern int __sprintf_chk (char *__restrict__ __s, int __flag, size_t __slen,
53 __const char *__restrict__ __format, ...);
54extern int __vsprintf_chk (char *__restrict__ __s, int __flag, size_t __slen,
55 __const char *__restrict__ __format,
56 va_list __ap);
57
58#define sprintf(str, ...) \
59 __builtin___sprintf_chk (str, 0, __ssp_bos (str), \
60 __VA_ARGS__)
61#define vsprintf(str, fmt, ap) \
62 __builtin___vsprintf_chk (str, 0, __ssp_bos (str), fmt, ap)
63
64extern int __snprintf_chk (char *__restrict__ __s, size_t __n, int __flag,
65 size_t __slen, __const char *__restrict__ __format,
66 ...);
67extern int __vsnprintf_chk (char *__restrict__ __s, size_t __n, int __flag,
68 size_t __slen, __const char *__restrict__ __format,
69 va_list __ap);
70
71#define snprintf(str, len, ...) \
72 __builtin___snprintf_chk (str, len, 0, __ssp_bos (str), __VA_ARGS__)
73#define vsnprintf(str, len, fmt, ap) \
74 __builtin___vsnprintf_chk (str, len, 0, __ssp_bos (str), fmt, ap)
75
76extern char *__gets_chk (char *__str, size_t);
77extern char *__SSP_REDIRECT (__gets_alias, (char *__str), gets);
78
79extern inline __attribute__((__always_inline__)) char *
80gets (char *__str)
81{
82 if (__ssp_bos (__str) != (size_t) -1)
83 return __gets_chk (__str, __ssp_bos (__str));
84 return __gets_alias (__str);
85}
86
87extern char *__SSP_REDIRECT (__fgets_alias,
88 (char *__restrict__ __s, int __n,
89 FILE *__restrict__ __stream), fgets);
90
91extern inline __attribute__((__always_inline__)) char *
92fgets (char *__restrict__ __s, int __n, FILE *__restrict__ __stream)
93{
94 if (__ssp_bos (__s) != (size_t) -1 && (size_t) __n > __ssp_bos (__s))
95 __chk_fail ();
96 return __fgets_alias (__s, __n, __stream);
97}
98
99#endif /* __SSP_FORTIFY_LEVEL > 0 */
100#endif /* _SSP_STDIO_H */
101

Warning: That file was not part of the compilation database. It may have many parsing errors.