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101 lines
3.4 KiB
C
101 lines
3.4 KiB
C
/* Checking macros for stdio functions.
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Copyright (C) 2004-2019 Free Software Foundation, Inc.
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This file is part of GCC.
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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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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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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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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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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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#ifndef _SSP_STDIO_H
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#define _SSP_STDIO_H 1
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#include <ssp.h>
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#include_next <stdio.h>
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#if __SSP_FORTIFY_LEVEL > 0
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#include <stdarg.h>
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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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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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#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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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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#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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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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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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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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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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#endif /* __SSP_FORTIFY_LEVEL > 0 */
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#endif /* _SSP_STDIO_H */
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