117 lines
4.3 KiB
C
117 lines
4.3 KiB
C
/* Checking macros for stdio functions.
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Copyright (C) 2004, 2005 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _STDIO_H
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# error "Never include <bits/stdio2.h> directly; use <stdio.h> instead."
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#endif
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extern int __sprintf_chk (char *__restrict __s, int __flag, size_t __slen,
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__const char *__restrict __format, ...) __THROW;
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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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_G_va_list __ap) __THROW;
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#define sprintf(str, ...) \
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__builtin___sprintf_chk (str, __USE_FORTIFY_LEVEL - 1, __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, __USE_FORTIFY_LEVEL - 1, __bos (str), fmt, ap)
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#if defined __USE_BSD || defined __USE_ISOC99 || defined __USE_UNIX98
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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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...) __THROW;
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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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_G_va_list __ap) __THROW;
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# define snprintf(str, len, ...) \
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__builtin___snprintf_chk (str, len, __USE_FORTIFY_LEVEL - 1, __bos (str), \
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__VA_ARGS__)
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# define vsnprintf(str, len, fmt, ap) \
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__builtin___vsnprintf_chk (str, len, __USE_FORTIFY_LEVEL - 1, __bos (str), \
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fmt, ap)
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#endif
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#if __USE_FORTIFY_LEVEL > 1
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extern int __fprintf_chk (FILE *__restrict __stream, int __flag,
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__const char *__restrict __format, ...);
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extern int __printf_chk (int __flag, __const char *__restrict __format, ...);
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extern int __vfprintf_chk (FILE *__restrict __stream, int __flag,
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__const char *__restrict __format, _G_va_list __ap);
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extern int __vprintf_chk (int __flag, __const char *__restrict __format,
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_G_va_list __ap);
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# define printf(...) \
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__printf_chk (__USE_FORTIFY_LEVEL - 1, __VA_ARGS__)
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# define fprintf(stream, ...) \
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__fprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, __VA_ARGS__)
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# define vprintf(format, ap) \
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__vprintf_chk (__USE_FORTIFY_LEVEL - 1, format, ap)
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# define vfprintf(stream, format, ap) \
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__vfprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, format, ap)
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#endif
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extern char *__gets_chk (char *__str, size_t) __wur;
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extern char *__REDIRECT (__gets_alias, (char *__str), gets) __wur;
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extern __always_inline __wur char *
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gets (char *__str)
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{
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if (__bos (__str) != (size_t) -1)
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return __gets_chk (__str, __bos (__str));
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return __gets_alias (__str);
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}
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extern char *__fgets_chk (char *__restrict __s, size_t __size, int __n,
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FILE *__restrict __stream) __wur;
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extern char *__REDIRECT (__fgets_alias,
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(char *__restrict __s, int __n,
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FILE *__restrict __stream), fgets) __wur;
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extern __always_inline __wur char *
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fgets (char *__restrict __s, int __n, FILE *__restrict __stream)
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{
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if (__bos (__s) != (size_t) -1
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&& (!__builtin_constant_p (__n) || (size_t) __n > __bos (__s)))
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return __fgets_chk (__s, __bos (__s), __n, __stream);
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return __fgets_alias (__s, __n, __stream);
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}
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#ifdef __USE_GNU
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extern char *__fgets_unlocked_chk (char *__restrict __s, size_t __size,
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int __n, FILE *__restrict __stream) __wur;
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extern char *__REDIRECT (__fgets_unlocked_alias,
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(char *__restrict __s, int __n,
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FILE *__restrict __stream), fgets_unlocked) __wur;
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extern __always_inline __wur char *
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fgets_unlocked (char *__restrict __s, int __n, FILE *__restrict __stream)
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{
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if (__bos (__s) != (size_t) -1
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&& (!__builtin_constant_p (__n) || (size_t) __n > __bos (__s)))
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return __fgets_unlocked_chk (__s, __bos (__s), __n, __stream);
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return __fgets_unlocked_alias (__s, __n, __stream);
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}
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#endif
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