f499cd524a
This adds bounds checking for the following functions:
memset, fgets, gets, memcpy, memmove, memset, snprintf, sprintf, strcat,
strcpy, strncat, strncpy, vsnprintf, vsprintf
This functionality is enabled by compiling with:
gcc -I/usr/include/ssp -D_FORTIFY_SOURCE=<1|2> -lssp
Eventually gcc will provide -ffortify-source or something to automate this
[we hope :-)]
64 lines
2.6 KiB
C
64 lines
2.6 KiB
C
/* $NetBSD: unistd.h,v 1.1 2006/11/08 19:52:11 christos 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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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.h>
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#include_next <unistd.h>
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#if __SSP_FORTIFY_LEVEL > 0
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__BEGIN_DECLS
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__ssp_redirect0(ssize_t, read, (int __fd, void *__buf, size_t __len), \
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(__fd, __buf, __len));
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__ssp_redirect(int, readlink, (const char *__restrict __path, \
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char *__restrict __buf, size_t __len), (__path, __buf, __len));
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__ssp_redirect(char *, getcwd, (char *__buf, size_t __len), (__buf, __len));
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__END_DECLS
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#define read(fd, buf, len) __read_alias(fd, buf, len)
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#define readlink(path, buf, len) __readlink_alias(path, buf, len)
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#define getcwd(buf, len) __getcwd_alias(buf, len)
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#endif /* __SSP_FORTIFY_LEVEL > 0 */
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#endif /* _SSP_UNISTD_H_ */
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