ssp: add Object Size Checking for unistd.h, part 1
The implementation is from NetBSD, with the addition of feature test macros
for readlink. glibc also wraps the following functions:
confstr, getdomainname, getgroups, gethostname, getlogin_r, getwd, pread,
readlinkat, ttyname_r.
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-28 13:49:18 +08:00
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/* $NetBSD: unistd.h,v 1.7 2015/06/25 18:41:03 joerg Exp $ */
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/*-
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* Copyright (c) 2006 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _SSP_UNISTD_H_
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#define _SSP_UNISTD_H_
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#include <ssp/ssp.h>
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#if __SSP_FORTIFY_LEVEL > 0
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__BEGIN_DECLS
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2017-12-01 05:38:15 +08:00
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#if __POSIX_VISIBLE >= 199209
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__ssp_redirect(size_t, confstr, (int __name, char *__buf, size_t __len), \
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(__name, __buf, __len));
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#endif
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__ssp_redirect_raw(char *, getcwd, (char *__buf, size_t __len),
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(__buf, __len), __buf != 0, __ssp_bos);
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#if __BSD_VISIBLE || (__XSI_VISIBLE && __XSI_VISIBLE < 500)
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__ssp_redirect(int, getdomainname, (char *__buf, size_t __len), \
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(__buf, __len));
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#endif
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__ssp_decl(int, getgroups, (int __n, gid_t __buf[]))
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{
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__ssp_check(__buf, __n * sizeof(gid_t), __ssp_bos);
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return __ssp_real_getgroups (__n, __buf);
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}
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#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 500
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#if !(defined (_WINSOCK_H) || defined (_WINSOCKAPI_) || defined (__USE_W32_SOCKETS))
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__ssp_redirect(int, gethostname, (char *__buf, size_t __len), \
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(__buf, __len));
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#endif
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#endif
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__ssp_redirect(int, getlogin_r, (char *__buf, size_t __len), \
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(__buf, __len));
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#if __POSIX_VISIBLE >= 200809 || __XSI_VISIBLE >= 500
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__ssp_redirect0(ssize_t, pread, (int __fd, void *__buf, size_t __len, off_t __off), \
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(__fd, __buf, __len, __off));
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#endif
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ssp: add Object Size Checking for unistd.h, part 1
The implementation is from NetBSD, with the addition of feature test macros
for readlink. glibc also wraps the following functions:
confstr, getdomainname, getgroups, gethostname, getlogin_r, getwd, pread,
readlinkat, ttyname_r.
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-28 13:49:18 +08:00
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__ssp_redirect0(_READ_WRITE_RETURN_TYPE, read, \
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(int __fd, void *__buf, size_t __len), (__fd, __buf, __len));
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#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 4
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__ssp_redirect(ssize_t, readlink, (const char *__restrict __path, \
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char *__restrict __buf, size_t __len), (__path, __buf, __len));
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#endif
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2017-12-01 05:38:15 +08:00
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#if __ATFILE_VISIBLE
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__ssp_redirect(ssize_t, readlinkat, \
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(int __dirfd1, const char *__restrict __path, char *__restrict __buf, size_t __len), \
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(__dirfd1, __path, __buf, __len));
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#endif
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__ssp_redirect(int, ttyname_r, (int __fd, char *__buf, size_t __len), \
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(__fd, __buf, __len));
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ssp: add Object Size Checking for unistd.h, part 1
The implementation is from NetBSD, with the addition of feature test macros
for readlink. glibc also wraps the following functions:
confstr, getdomainname, getgroups, gethostname, getlogin_r, getwd, pread,
readlinkat, ttyname_r.
Signed-off-by: Yaakov Selkowitz <yselkowi@redhat.com>
2017-11-28 13:49:18 +08:00
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__END_DECLS
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#endif /* __SSP_FORTIFY_LEVEL > 0 */
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#endif /* _SSP_UNISTD_H_ */
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