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/* Checking macros for unistd functions.
Copyright (C) 2005-2024 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 _UNISTD_H
# error "Never include <bits/unistd.h> directly; use <unistd.h> instead."
#endif
# include <bits/unistd-decl.h>
__fortify_function __attribute_overloadable__ __wur ssize_t
read (int __fd, __fortify_clang_overload_arg0 (void *, ,__buf), size_t __nbytes)
__fortify_clang_warning_only_if_bos0_lt (__nbytes, __buf,
"read called with bigger length than "
"size of the destination buffer")
{
return __glibc_fortify (read, __nbytes, sizeof (char),
__glibc_objsize0 (__buf),
__fd, __buf, __nbytes);
}
#if defined __USE_UNIX98 || defined __USE_XOPEN2K8
# ifndef __USE_FILE_OFFSET64
__fortify_function __attribute_overloadable__ __wur ssize_t
pread (int __fd, __fortify_clang_overload_arg0 (void *, ,__buf),
size_t __nbytes, __off_t __offset)
__fortify_clang_warning_only_if_bos0_lt (__nbytes, __buf,
"pread called with bigger length than "
"size of the destination buffer")
{
return __glibc_fortify (pread, __nbytes, sizeof (char),
__glibc_objsize0 (__buf),
__fd, __buf, __nbytes, __offset);
}
# else
__fortify_function __attribute_overloadable__ __wur ssize_t
pread (int __fd, __fortify_clang_overload_arg0 (void *, ,__buf),
size_t __nbytes, __off64_t __offset)
__fortify_clang_warning_only_if_bos0_lt (__nbytes, __buf,
"pread called with bigger length than "
"size of the destination buffer")
{
return __glibc_fortify (pread64, __nbytes, sizeof (char),
__glibc_objsize0 (__buf),
__fd, __buf, __nbytes, __offset);
}
# endif
# ifdef __USE_LARGEFILE64
__fortify_function __attribute_overloadable__ __wur ssize_t
pread64 (int __fd, __fortify_clang_overload_arg0 (void *, ,__buf),
size_t __nbytes, __off64_t __offset)
__fortify_clang_warning_only_if_bos0_lt (__nbytes, __buf,
"pread64 called with bigger length than "
"size of the destination buffer")
{
return __glibc_fortify (pread64, __nbytes, sizeof (char),
__glibc_objsize0 (__buf),
__fd, __buf, __nbytes, __offset);
}
# endif
#endif
#if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K
__fortify_function __attribute_overloadable__ __nonnull ((1, 2)) __wur ssize_t
__NTH (readlink (const char *__restrict __path,
__fortify_clang_overload_arg0 (char *, __restrict, __buf),
size_t __len))
__fortify_clang_warning_only_if_bos_lt (__len, __buf,
"readlink called with bigger length "
"than size of destination buffer")
{
return __glibc_fortify (readlink, __len, sizeof (char),
__glibc_objsize (__buf),
__path, __buf, __len);
}
#endif
#ifdef __USE_ATFILE
__fortify_function __attribute_overloadable__ __nonnull ((2, 3)) __wur ssize_t
__NTH (readlinkat (int __fd, const char *__restrict __path,
__fortify_clang_overload_arg0 (char *, __restrict, __buf),
size_t __len))
__fortify_clang_warning_only_if_bos_lt (__len, __buf,
"readlinkat called with bigger length "
"than size of destination buffer")
{
return __glibc_fortify (readlinkat, __len, sizeof (char),
__glibc_objsize (__buf),
__fd, __path, __buf, __len);
}
#endif
__fortify_function __attribute_overloadable__ __wur char *
__NTH (getcwd (__fortify_clang_overload_arg (char *, , __buf), size_t __size))
__fortify_clang_warning_only_if_bos_lt (__size, __buf,
"getcwd called with bigger length "
"than size of destination buffer")
{
return __glibc_fortify (getcwd, __size, sizeof (char),
__glibc_objsize (__buf),
__buf, __size);
}
#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
__fortify_function __attribute_overloadable__ __nonnull ((1))
__attribute_deprecated__ __wur char *
__NTH (getwd (__fortify_clang_overload_arg (char *,, __buf)))
{
if (__glibc_objsize (__buf) != (size_t) -1)
return __getwd_chk (__buf, __glibc_objsize (__buf));
return __getwd_warn (__buf);
}
#endif
__fortify_function __attribute_overloadable__ size_t
__NTH (confstr (int __name, __fortify_clang_overload_arg (char *, ,__buf),
size_t __len))
__fortify_clang_warning_only_if_bos_lt (__len, __buf,
"confstr called with bigger length than "
"size of destination buffer")
{
return __glibc_fortify (confstr, __len, sizeof (char),
__glibc_objsize (__buf),
__name, __buf, __len);
}
__fortify_function __attribute_overloadable__ int
__NTH (getgroups (int __size,
__fortify_clang_overload_arg (__gid_t *, , __list)))
__fortify_clang_warning_only_if_bos_lt (__size * sizeof (__gid_t), __list,
"getgroups called with bigger group "
"count than what can fit into "
"destination buffer")
{
return __glibc_fortify (getgroups, __size, sizeof (__gid_t),
__glibc_objsize (__list),
__size, __list);
}
__fortify_function __attribute_overloadable__ int
__NTH (ttyname_r (int __fd,
__fortify_clang_overload_arg (char *, ,__buf),
size_t __buflen))
__fortify_clang_warning_only_if_bos_lt (__buflen, __buf,
"ttyname_r called with bigger buflen "
"than size of destination buffer")
{
return __glibc_fortify (ttyname_r, __buflen, sizeof (char),
__glibc_objsize (__buf),
__fd, __buf, __buflen);
}
#ifdef __USE_POSIX199506
__fortify_function __attribute_overloadable__ int
getlogin_r (__fortify_clang_overload_arg (char *, ,__buf), size_t __buflen)
__fortify_clang_warning_only_if_bos_lt (__buflen, __buf,
"getlogin_r called with bigger buflen "
"than size of destination buffer")
{
return __glibc_fortify (getlogin_r, __buflen, sizeof (char),
__glibc_objsize (__buf),
__buf, __buflen);
}
#endif
#if defined __USE_MISC || defined __USE_UNIX98
__fortify_function __attribute_overloadable__ int
__NTH (gethostname (__fortify_clang_overload_arg (char *, ,__buf),
size_t __buflen))
__fortify_clang_warning_only_if_bos_lt (__buflen, __buf,
"gethostname called with bigger buflen "
"than size of destination buffer")
{
return __glibc_fortify (gethostname, __buflen, sizeof (char),
__glibc_objsize (__buf),
__buf, __buflen);
}
#endif
#if defined __USE_MISC || (defined __USE_XOPEN && !defined __USE_UNIX98)
__fortify_function __attribute_overloadable__ int
__NTH (getdomainname (__fortify_clang_overload_arg (char *, ,__buf),
size_t __buflen))
__fortify_clang_warning_only_if_bos_lt (__buflen, __buf,
"getdomainname called with bigger "
"buflen than size of destination buffer")
{
return __glibc_fortify (getdomainname, __buflen, sizeof (char),
__glibc_objsize (__buf),
__buf, __buflen);
}
#endif
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