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cf8e5289a1
ssp/ssp.h needed some improvements:
- `len` isn't always a size_t, it may need casted
- In some cases we may want to use a len that isn't specified as a
parameter (e.g., L_ctermid), so __ssp_redirect() should be more
flexible.
- In other cases we may want additional checking, so pull all of the
declaration bits out of __ssp_redirect_raw() so that some functions
can implement the body themselves.
strlcat/strlcpy should be the last of the fortified functions that get
their own __*_chk symbols, and these cases are only done to be
consistent with the rest of the str*() set.
Reviewed by: markj
Sponsored by: Klara, Inc.
Sponsored by: Stormshield
Differential Revision: https://reviews.freebsd.org/D45679
91 lines
3.4 KiB
C
91 lines
3.4 KiB
C
/* $NetBSD: unistd.h,v 1.7 2015/06/25 18:41:03 joerg Exp $ */
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/*-
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*
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* SPDX-License-Identifier: BSD-2-Clause
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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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#ifndef _FORTIFY_SOURCE_read
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#define _FORTIFY_SOURCE_read read
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#endif
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__ssp_inline size_t
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__ssp_gid_bos(const void *ptr)
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{
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size_t ptrsize = __ssp_bos(ptr);
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if (ptrsize == (size_t)-1)
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return (ptrsize);
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return (ptrsize / sizeof(gid_t));
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}
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__ssp_redirect_raw(int, getgrouplist, getgrouplist,
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(const char *__name, gid_t __base, gid_t *__buf, int *__lenp),
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(__name, __base, __buf, __lenp), 1, __ssp_gid_bos, *__lenp);
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__ssp_redirect_raw(int, getgroups, getgroups, (int __len, gid_t *__buf),
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(__len, __buf), 1, __ssp_gid_bos, __len);
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__ssp_redirect(int, getloginclass, (char *__buf, size_t __len),
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(__buf, __len));
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__ssp_redirect(ssize_t, _FORTIFY_SOURCE_read, (int __fd, void *__buf,
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size_t __len), (__fd, __buf, __len));
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__ssp_redirect(ssize_t, pread, (int __fd, void *__buf, size_t __len,
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off_t __offset), (__fd, __buf, __len, __offset));
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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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__ssp_redirect(ssize_t, readlinkat, (int __fd, const char *__restrict __path,
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char *__restrict __buf, size_t __len), (__fd, __path, __buf, __len));
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__ssp_redirect_raw(char *, getcwd, getcwd, (char *__buf, size_t __len),
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(__buf, __len), __buf != 0, __ssp_bos, __len);
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__ssp_redirect(int, getdomainname, (char *__buf, int __len), (__buf, __len));
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__ssp_redirect(int, getentropy, (void *__buf, size_t __len), (__buf, __len));
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__ssp_redirect(int, gethostname, (char *__buf, size_t __len), (__buf, __len));
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__ssp_redirect(int, getlogin_r, (char *__buf, size_t __len), (__buf, __len));
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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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__END_DECLS
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#endif /* __SSP_FORTIFY_LEVEL > 0 */
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#endif /* _SSP_UNISTD_H_ */
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