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/* Checking routines for unistd functions. Declaration only.
Copyright (C) 2023-2025 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, see
<https://www.gnu.org/licenses/>. */
#ifndef _BITS_UNISTD_DECL_H
#define _BITS_UNISTD_DECL_H 1
#ifndef _UNISTD_H
# error "Never include <bits/unistd-decl.h> directly; use <unistd.h> instead."
#endif
extern ssize_t __read_chk (int __fd, void *__buf, size_t __nbytes,
size_t __buflen)
__wur __attr_access ((__write_only__, 2, 3));
extern ssize_t __REDIRECT_FORTIFY (__read_alias, (int __fd, void *__buf,
size_t __nbytes), read)
__wur __attr_access ((__write_only__, 2, 3));
extern ssize_t __REDIRECT (__read_chk_warn,
(int __fd, void *__buf, size_t __nbytes,
size_t __buflen), __read_chk)
__wur __warnattr ("read called with bigger length than size of "
"the destination buffer");
#if defined __USE_UNIX98 || defined __USE_XOPEN2K8
extern ssize_t __pread_chk (int __fd, void *__buf, size_t __nbytes,
__off_t __offset, size_t __bufsize)
__wur __attr_access ((__write_only__, 2, 3));
extern ssize_t __pread64_chk (int __fd, void *__buf, size_t __nbytes,
__off64_t __offset, size_t __bufsize)
__wur __attr_access ((__write_only__, 2, 3));
extern ssize_t __REDIRECT (__pread_alias,
(int __fd, void *__buf, size_t __nbytes,
__off_t __offset), pread)
__wur __attr_access ((__write_only__, 2, 3));
extern ssize_t __REDIRECT (__pread64_alias,
(int __fd, void *__buf, size_t __nbytes,
__off64_t __offset), pread64)
__wur __attr_access ((__write_only__, 2, 3));
extern ssize_t __REDIRECT (__pread_chk_warn,
(int __fd, void *__buf, size_t __nbytes,
__off_t __offset, size_t __bufsize), __pread_chk)
__wur __warnattr ("pread called with bigger length than size of "
"the destination buffer");
extern ssize_t __REDIRECT (__pread64_chk_warn,
(int __fd, void *__buf, size_t __nbytes,
__off64_t __offset, size_t __bufsize),
__pread64_chk)
__wur __warnattr ("pread64 called with bigger length than size of "
"the destination buffer");
#endif
#if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K
extern ssize_t __readlink_chk (const char *__restrict __path,
char *__restrict __buf, size_t __len,
size_t __buflen)
__THROW __nonnull ((1, 2)) __wur __attr_access ((__write_only__, 2, 3));
extern ssize_t __REDIRECT_NTH (__readlink_alias,
(const char *__restrict __path,
char *__restrict __buf, size_t __len), readlink)
__nonnull ((1, 2)) __wur __attr_access ((__write_only__, 2, 3));
extern ssize_t __REDIRECT_NTH (__readlink_chk_warn,
(const char *__restrict __path,
char *__restrict __buf, size_t __len,
size_t __buflen), __readlink_chk)
__nonnull ((1, 2)) __wur __warnattr ("readlink called with bigger length "
"than size of destination buffer");
#endif
#ifdef __USE_ATFILE
extern ssize_t __readlinkat_chk (int __fd, const char *__restrict __path,
char *__restrict __buf, size_t __len,
size_t __buflen)
__THROW __nonnull ((2, 3)) __wur __attr_access ((__write_only__, 3, 4));
extern ssize_t __REDIRECT_NTH (__readlinkat_alias,
(int __fd, const char *__restrict __path,
char *__restrict __buf, size_t __len),
readlinkat)
__nonnull ((2, 3)) __wur __attr_access ((__write_only__, 3, 4));
extern ssize_t __REDIRECT_NTH (__readlinkat_chk_warn,
(int __fd, const char *__restrict __path,
char *__restrict __buf, size_t __len,
size_t __buflen), __readlinkat_chk)
__nonnull ((2, 3)) __wur __warnattr ("readlinkat called with bigger "
"length than size of destination "
"buffer");
#endif
extern char *__getcwd_chk (char *__buf, size_t __size, size_t __buflen)
__THROW __wur;
extern char *__REDIRECT_NTH (__getcwd_alias,
(char *__buf, size_t __size), getcwd) __wur;
extern char *__REDIRECT_NTH (__getcwd_chk_warn,
(char *__buf, size_t __size, size_t __buflen),
__getcwd_chk)
__wur __warnattr ("getcwd caller with bigger length than size of "
"destination buffer");
#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
extern char *__getwd_chk (char *__buf, size_t buflen)
__THROW __nonnull ((1)) __wur __attr_access ((__write_only__, 1, 2));
extern char *__REDIRECT_NTH (__getwd_warn, (char *__buf), getwd)
__nonnull ((1)) __wur __warnattr ("please use getcwd instead, as getwd "
"doesn't specify buffer size");
#endif
extern size_t __confstr_chk (int __name, char *__buf, size_t __len,
size_t __buflen) __THROW
__attr_access ((__write_only__, 2, 3));
extern size_t __REDIRECT_NTH (__confstr_alias, (int __name, char *__buf,
size_t __len), confstr)
__attr_access ((__write_only__, 2, 3));
extern size_t __REDIRECT_NTH (__confstr_chk_warn,
(int __name, char *__buf, size_t __len
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