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b17d65ff92
The change is meant to avoid unwanted PLT entries for the read_chk, getdomainname_chk and getlogin_r_chk routines when _FORTIFY_SOURCE is set. Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
199 lines
8.5 KiB
C
199 lines
8.5 KiB
C
/* Checking routines for unistd functions. Declaration only.
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Copyright (C) 2023 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, see
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<https://www.gnu.org/licenses/>. */
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#ifndef _BITS_UNISTD_DECL_H
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#define _BITS_UNISTD_DECL_H 1
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#ifndef _UNISTD_H
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# error "Never include <bits/unistd-decl.h> directly; use <unistd.h> instead."
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#endif
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extern ssize_t __read_chk (int __fd, void *__buf, size_t __nbytes,
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size_t __buflen)
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__wur __attr_access ((__write_only__, 2, 3));
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extern ssize_t __REDIRECT_FORTIFY (__read_alias, (int __fd, void *__buf,
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size_t __nbytes), read)
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__wur __attr_access ((__write_only__, 2, 3));
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extern ssize_t __REDIRECT (__read_chk_warn,
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(int __fd, void *__buf, size_t __nbytes,
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size_t __buflen), __read_chk)
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__wur __warnattr ("read called with bigger length than size of "
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"the destination buffer");
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#if defined __USE_UNIX98 || defined __USE_XOPEN2K8
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extern ssize_t __pread_chk (int __fd, void *__buf, size_t __nbytes,
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__off_t __offset, size_t __bufsize)
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__wur __attr_access ((__write_only__, 2, 3));
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extern ssize_t __pread64_chk (int __fd, void *__buf, size_t __nbytes,
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__off64_t __offset, size_t __bufsize)
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__wur __attr_access ((__write_only__, 2, 3));
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extern ssize_t __REDIRECT (__pread_alias,
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(int __fd, void *__buf, size_t __nbytes,
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__off_t __offset), pread)
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__wur __attr_access ((__write_only__, 2, 3));
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extern ssize_t __REDIRECT (__pread64_alias,
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(int __fd, void *__buf, size_t __nbytes,
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__off64_t __offset), pread64)
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__wur __attr_access ((__write_only__, 2, 3));
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extern ssize_t __REDIRECT (__pread_chk_warn,
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(int __fd, void *__buf, size_t __nbytes,
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__off_t __offset, size_t __bufsize), __pread_chk)
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__wur __warnattr ("pread called with bigger length than size of "
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"the destination buffer");
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extern ssize_t __REDIRECT (__pread64_chk_warn,
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(int __fd, void *__buf, size_t __nbytes,
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__off64_t __offset, size_t __bufsize),
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__pread64_chk)
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__wur __warnattr ("pread64 called with bigger length than size of "
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"the destination buffer");
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#endif
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#if defined __USE_XOPEN_EXTENDED || defined __USE_XOPEN2K
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extern ssize_t __readlink_chk (const char *__restrict __path,
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char *__restrict __buf, size_t __len,
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size_t __buflen)
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__THROW __nonnull ((1, 2)) __wur __attr_access ((__write_only__, 2, 3));
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extern ssize_t __REDIRECT_NTH (__readlink_alias,
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(const char *__restrict __path,
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char *__restrict __buf, size_t __len), readlink)
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__nonnull ((1, 2)) __wur __attr_access ((__write_only__, 2, 3));
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extern ssize_t __REDIRECT_NTH (__readlink_chk_warn,
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(const char *__restrict __path,
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char *__restrict __buf, size_t __len,
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size_t __buflen), __readlink_chk)
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__nonnull ((1, 2)) __wur __warnattr ("readlink called with bigger length "
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"than size of destination buffer");
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#endif
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#ifdef __USE_ATFILE
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extern ssize_t __readlinkat_chk (int __fd, const char *__restrict __path,
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char *__restrict __buf, size_t __len,
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size_t __buflen)
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__THROW __nonnull ((2, 3)) __wur __attr_access ((__write_only__, 3, 4));
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extern ssize_t __REDIRECT_NTH (__readlinkat_alias,
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(int __fd, const char *__restrict __path,
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char *__restrict __buf, size_t __len),
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readlinkat)
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__nonnull ((2, 3)) __wur __attr_access ((__write_only__, 3, 4));
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extern ssize_t __REDIRECT_NTH (__readlinkat_chk_warn,
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(int __fd, const char *__restrict __path,
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char *__restrict __buf, size_t __len,
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size_t __buflen), __readlinkat_chk)
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__nonnull ((2, 3)) __wur __warnattr ("readlinkat called with bigger "
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"length than size of destination "
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"buffer");
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#endif
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extern char *__getcwd_chk (char *__buf, size_t __size, size_t __buflen)
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__THROW __wur;
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extern char *__REDIRECT_NTH (__getcwd_alias,
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(char *__buf, size_t __size), getcwd) __wur;
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extern char *__REDIRECT_NTH (__getcwd_chk_warn,
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(char *__buf, size_t __size, size_t __buflen),
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__getcwd_chk)
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__wur __warnattr ("getcwd caller with bigger length than size of "
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"destination buffer");
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#if defined __USE_MISC || defined __USE_XOPEN_EXTENDED
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extern char *__getwd_chk (char *__buf, size_t buflen)
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__THROW __nonnull ((1)) __wur __attr_access ((__write_only__, 1, 2));
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extern char *__REDIRECT_NTH (__getwd_warn, (char *__buf), getwd)
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__nonnull ((1)) __wur __warnattr ("please use getcwd instead, as getwd "
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"doesn't specify buffer size");
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#endif
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extern size_t __confstr_chk (int __name, char *__buf, size_t __len,
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size_t __buflen) __THROW
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__attr_access ((__write_only__, 2, 3));
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extern size_t __REDIRECT_NTH (__confstr_alias, (int __name, char *__buf,
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size_t __len), confstr)
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__attr_access ((__write_only__, 2, 3));
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extern size_t __REDIRECT_NTH (__confstr_chk_warn,
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(int __name, char *__buf, size_t __len,
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size_t __buflen), __confstr_chk)
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__warnattr ("confstr called with bigger length than size of destination "
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"buffer");
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extern int __getgroups_chk (int __size, __gid_t __list[], size_t __listlen)
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__THROW __wur __attr_access ((__write_only__, 2, 1));
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extern int __REDIRECT_NTH (__getgroups_alias, (int __size, __gid_t __list[]),
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getgroups) __wur __attr_access ((__write_only__, 2, 1));
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extern int __REDIRECT_NTH (__getgroups_chk_warn,
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(int __size, __gid_t __list[], size_t __listlen),
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__getgroups_chk)
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__wur __warnattr ("getgroups called with bigger group count than what "
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"can fit into destination buffer");
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extern int __ttyname_r_chk (int __fd, char *__buf, size_t __buflen,
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size_t __nreal) __THROW __nonnull ((2))
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__attr_access ((__write_only__, 2, 3));
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extern int __REDIRECT_NTH (__ttyname_r_alias, (int __fd, char *__buf,
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size_t __buflen), ttyname_r)
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__nonnull ((2));
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extern int __REDIRECT_NTH (__ttyname_r_chk_warn,
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(int __fd, char *__buf, size_t __buflen,
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size_t __nreal), __ttyname_r_chk)
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__nonnull ((2)) __warnattr ("ttyname_r called with bigger buflen than "
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"size of destination buffer");
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#ifdef __USE_POSIX199506
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extern int __getlogin_r_chk (char *__buf, size_t __buflen, size_t __nreal)
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__nonnull ((1)) __attr_access ((__write_only__, 1, 2));
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extern int __REDIRECT_FORTIFY (__getlogin_r_alias, (char *__buf, size_t __buflen),
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getlogin_r) __nonnull ((1));
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extern int __REDIRECT (__getlogin_r_chk_warn,
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(char *__buf, size_t __buflen, size_t __nreal),
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__getlogin_r_chk)
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__nonnull ((1)) __warnattr ("getlogin_r called with bigger buflen than "
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"size of destination buffer");
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#endif
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#if defined __USE_MISC || defined __USE_UNIX98
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extern int __gethostname_chk (char *__buf, size_t __buflen, size_t __nreal)
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__THROW __nonnull ((1)) __attr_access ((__write_only__, 1, 2));
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extern int __REDIRECT_NTH (__gethostname_alias, (char *__buf, size_t __buflen),
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gethostname)
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__nonnull ((1)) __attr_access ((__write_only__, 1, 2));
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extern int __REDIRECT_NTH (__gethostname_chk_warn,
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(char *__buf, size_t __buflen, size_t __nreal),
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__gethostname_chk)
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__nonnull ((1)) __warnattr ("gethostname called with bigger buflen than "
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"size of destination buffer");
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#endif
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#if defined __USE_MISC || (defined __USE_XOPEN && !defined __USE_UNIX98)
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extern int __getdomainname_chk (char *__buf, size_t __buflen, size_t __nreal)
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__THROW __nonnull ((1)) __wur __attr_access ((__write_only__, 1, 2));
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extern int __REDIRECT_FORTIFY_NTH (__getdomainname_alias, (char *__buf,
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size_t __buflen),
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getdomainname) __nonnull ((1))
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__wur __attr_access ((__write_only__, 1, 2));
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extern int __REDIRECT_NTH (__getdomainname_chk_warn,
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(char *__buf, size_t __buflen, size_t __nreal),
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__getdomainname_chk)
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__nonnull ((1)) __wur __warnattr ("getdomainname called with bigger "
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"buflen than size of destination "
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"buffer");
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#endif
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#endif /* bits/unistd-decl.h. */
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