| /* Checking macros for stdio functions. |
| Copyright (C) 2004-2018 Free Software Foundation, Inc. |
| |
| This file is part of GCC. |
| |
| GCC is free software; you can redistribute it and/or modify it under |
| the terms of the GNU General Public License as published by the Free |
| Software Foundation; either version 3, or (at your option) any later |
| version. |
| |
| In addition to the permissions in the GNU General Public License, the |
| Free Software Foundation gives you unlimited permission to link the |
| compiled version of this file into combinations with other programs, |
| and to distribute those combinations without any restriction coming |
| from the use of this file. (The General Public License restrictions |
| do apply in other respects; for example, they cover modification of |
| the file, and distribution when not linked into a combine |
| executable.) |
| |
| GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
| WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| for more details. |
| |
| Under Section 7 of GPL version 3, you are granted additional |
| permissions described in the GCC Runtime Library Exception, version |
| 3.1, as published by the Free Software Foundation. |
| |
| You should have received a copy of the GNU General Public License and |
| a copy of the GCC Runtime Library Exception along with this program; |
| see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| |
| #ifndef _SSP_STDIO_H |
| #define _SSP_STDIO_H 1 |
| |
| #include <ssp.h> |
| #include_next <stdio.h> |
| |
| #if __SSP_FORTIFY_LEVEL > 0 |
| |
| #include <stdarg.h> |
| |
| #undef sprintf |
| #undef vsprintf |
| #undef snprintf |
| #undef vsnprintf |
| #undef gets |
| #undef fgets |
| |
| extern int __sprintf_chk (char *__restrict__ __s, int __flag, size_t __slen, |
| __const char *__restrict__ __format, ...); |
| extern int __vsprintf_chk (char *__restrict__ __s, int __flag, size_t __slen, |
| __const char *__restrict__ __format, |
| va_list __ap); |
| |
| #define sprintf(str, ...) \ |
| __builtin___sprintf_chk (str, 0, __ssp_bos (str), \ |
| __VA_ARGS__) |
| #define vsprintf(str, fmt, ap) \ |
| __builtin___vsprintf_chk (str, 0, __ssp_bos (str), fmt, ap) |
| |
| extern int __snprintf_chk (char *__restrict__ __s, size_t __n, int __flag, |
| size_t __slen, __const char *__restrict__ __format, |
| ...); |
| extern int __vsnprintf_chk (char *__restrict__ __s, size_t __n, int __flag, |
| size_t __slen, __const char *__restrict__ __format, |
| va_list __ap); |
| |
| #define snprintf(str, len, ...) \ |
| __builtin___snprintf_chk (str, len, 0, __ssp_bos (str), __VA_ARGS__) |
| #define vsnprintf(str, len, fmt, ap) \ |
| __builtin___vsnprintf_chk (str, len, 0, __ssp_bos (str), fmt, ap) |
| |
| extern char *__gets_chk (char *__str, size_t); |
| extern char *__SSP_REDIRECT (__gets_alias, (char *__str), gets); |
| |
| extern inline __attribute__((__always_inline__)) char * |
| gets (char *__str) |
| { |
| if (__ssp_bos (__str) != (size_t) -1) |
| return __gets_chk (__str, __ssp_bos (__str)); |
| return __gets_alias (__str); |
| } |
| |
| extern char *__SSP_REDIRECT (__fgets_alias, |
| (char *__restrict__ __s, int __n, |
| FILE *__restrict__ __stream), fgets); |
| |
| extern inline __attribute__((__always_inline__)) char * |
| fgets (char *__restrict__ __s, int __n, FILE *__restrict__ __stream) |
| { |
| if (__ssp_bos (__s) != (size_t) -1 && (size_t) __n > __ssp_bos (__s)) |
| __chk_fail (); |
| return __fgets_alias (__s, __n, __stream); |
| } |
| |
| #endif /* __SSP_FORTIFY_LEVEL > 0 */ |
| #endif /* _SSP_STDIO_H */ |