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- /* Checking macros for stdio functions.
- Copyright (C) 2004 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
-
- The GNU C Library 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
- Lesser General Public License for more details.
-
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
-
- #ifndef _STDIO_H
- # error "Never include <bits/stdio2.h> directly; use <stdio.h> instead."
- #endif
-
- extern int __sprintf_chk (char *__restrict __s, int __flag, size_t __slen,
- __const char *__restrict __format, ...) __THROW;
- extern int __vsprintf_chk (char *__restrict __s, int __flag, size_t __slen,
- __const char *__restrict __format,
- _G_va_list __ap) __THROW;
-
- #define sprintf(str, ...) \
- __builtin___sprintf_chk (str, __USE_FORTIFY_LEVEL - 1, __bos (str), \
- __VA_ARGS__)
- #define vsprintf(str, fmt, ap) \
- __builtin___vsprintf_chk (str, __USE_FORTIFY_LEVEL - 1, __bos (str), fmt, ap)
-
- #if defined __USE_BSD || defined __USE_ISOC99 || defined __USE_UNIX98
-
- extern int __snprintf_chk (char *__restrict __s, size_t __n, int __flag,
- size_t __slen, __const char *__restrict __format,
- ...) __THROW;
- extern int __vsnprintf_chk (char *__restrict __s, size_t __n, int __flag,
- size_t __slen, __const char *__restrict __format,
- _G_va_list __ap) __THROW;
-
- # define snprintf(str, len, ...) \
- __builtin___snprintf_chk (str, len, __USE_FORTIFY_LEVEL - 1, __bos (str), \
- __VA_ARGS__)
- # define vsnprintf(str, len, fmt, ap) \
- __builtin___vsnprintf_chk (str, len, __USE_FORTIFY_LEVEL - 1, __bos (str), \
- fmt, ap)
-
- #endif
-
- #if __USE_FORTIFY_LEVEL > 1
-
- extern int __fprintf_chk (FILE *__restrict __stream, int __flag,
- __const char *__restrict __format, ...);
- extern int __printf_chk (int __flag, __const char *__restrict __format, ...);
- extern int __vfprintf_chk (FILE *__restrict __stream, int __flag,
- __const char *__restrict __format, _G_va_list __ap);
- extern int __vprintf_chk (int __flag, __const char *__restrict __format,
- _G_va_list __ap);
-
- # define printf(...) \
- __printf_chk (__USE_FORTIFY_LEVEL - 1, __VA_ARGS__)
- # define fprintf(stream, ...) \
- __fprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, __VA_ARGS__)
- # define vprintf(format, ap) \
- __vprintf_chk (__USE_FORTIFY_LEVEL - 1, format, ap)
- # define vfprintf(stream, format, ap) \
- __vfprintf_chk (stream, __USE_FORTIFY_LEVEL - 1, format, ap)
-
- #endif
-
- extern char *__gets_chk (char *__str, size_t);
- #define gets(__str) \
- ((__bos (__str) == (size_t) -1) \
- ? (gets) (__str) : __gets_chk (__str, __bos (__str)))
-