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/* Checking macros for stdio functions. |
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Copyright (C) 2004-2021 Free Software Foundation, Inc. |
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|
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This file is part of GCC. |
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|
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GCC is free software; you can redistribute it and/or modify it under |
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the terms of the GNU General Public License as published by the Free |
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Software Foundation; either version 3, or (at your option) any later |
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version. |
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|
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In addition to the permissions in the GNU General Public License, the |
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Free Software Foundation gives you unlimited permission to link the |
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compiled version of this file into combinations with other programs, |
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and to distribute those combinations without any restriction coming |
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from the use of this file. (The General Public License restrictions |
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do apply in other respects; for example, they cover modification of |
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the file, and distribution when not linked into a combine |
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executable.) |
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|
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
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WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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for more details. |
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|
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Under Section 7 of GPL version 3, you are granted additional |
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permissions described in the GCC Runtime Library Exception, version |
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3.1, as published by the Free Software Foundation. |
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|
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You should have received a copy of the GNU General Public License and |
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a copy of the GCC Runtime Library Exception along with this program; |
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
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<http://www.gnu.org/licenses/>. */ |
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|
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|
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#ifndef _SSP_STDIO_H |
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#define _SSP_STDIO_H 1 |
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|
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#include <ssp.h> |
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#include_next <stdio.h> |
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|
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#if __SSP_FORTIFY_LEVEL > 0 |
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|
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#include <stdarg.h> |
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|
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#undef sprintf |
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#undef vsprintf |
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#undef snprintf |
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#undef vsnprintf |
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#undef gets |
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#undef fgets |
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|
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extern int __sprintf_chk (char *__restrict__ __s, int __flag, size_t __slen, |
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__const char *__restrict__ __format, ...); |
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extern int __vsprintf_chk (char *__restrict__ __s, int __flag, size_t __slen, |
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__const char *__restrict__ __format, |
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va_list __ap); |
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|
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#define sprintf(str, ...) \ |
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__builtin___sprintf_chk (str, 0, __ssp_bos (str), \ |
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__VA_ARGS__) |
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#define vsprintf(str, fmt, ap) \ |
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__builtin___vsprintf_chk (str, 0, __ssp_bos (str), fmt, ap) |
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|
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extern int __snprintf_chk (char *__restrict__ __s, size_t __n, int __flag, |
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size_t __slen, __const char *__restrict__ __format, |
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...); |
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extern int __vsnprintf_chk (char *__restrict__ __s, size_t __n, int __flag, |
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size_t __slen, __const char *__restrict__ __format, |
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va_list __ap); |
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|
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#define snprintf(str, len, ...) \ |
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__builtin___snprintf_chk (str, len, 0, __ssp_bos (str), __VA_ARGS__) |
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#define vsnprintf(str, len, fmt, ap) \ |
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__builtin___vsnprintf_chk (str, len, 0, __ssp_bos (str), fmt, ap) |
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|
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extern char *__gets_chk (char *__str, size_t); |
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extern char *__SSP_REDIRECT (__gets_alias, (char *__str), gets); |
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|
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extern inline __attribute__((__always_inline__)) char * |
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gets (char *__str) |
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{ |
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if (__ssp_bos (__str) != (size_t) -1) |
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return __gets_chk (__str, __ssp_bos (__str)); |
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return __gets_alias (__str); |
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} |
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|
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extern char *__SSP_REDIRECT (__fgets_alias, |
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(char *__restrict__ __s, int __n, |
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FILE *__restrict__ __stream), fgets); |
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|
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extern inline __attribute__((__always_inline__)) char * |
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fgets (char *__restrict__ __s, int __n, FILE *__restrict__ __stream) |
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{ |
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if (__ssp_bos (__s) != (size_t) -1 && (size_t) __n > __ssp_bos (__s)) |
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__chk_fail (); |
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return __fgets_alias (__s, __n, __stream); |
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} |
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|
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#endif /* __SSP_FORTIFY_LEVEL > 0 */ |
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#endif /* _SSP_STDIO_H */ |
