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From: Yaakov Selkowitz <yselkowitz@sourceware.org> To: newlib-cvs@sourceware.org Subject: [newlib-cygwin] ssp: add Object Size Checking for unistd.h, part 1 Date: Wed, 29 Nov 2017 17:27:00 -0000 [thread overview] Message-ID: <20171129172707.108311.qmail@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=6b02865d80f6a38caff78e9bff5c866ac0d6dff6 commit 6b02865d80f6a38caff78e9bff5c866ac0d6dff6 Author: Yaakov Selkowitz <yselkowi@redhat.com> Date: Mon Nov 27 23:49:18 2017 -0600 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> Diff: --- newlib/libc/include/ssp/unistd.h | 53 ++++++++++++++++++++++++++++++++++++++++ newlib/libc/include/sys/unistd.h | 5 ++++ 2 files changed, 58 insertions(+) diff --git a/newlib/libc/include/ssp/unistd.h b/newlib/libc/include/ssp/unistd.h new file mode 100644 index 0000000..861edd3 --- /dev/null +++ b/newlib/libc/include/ssp/unistd.h @@ -0,0 +1,53 @@ +/* $NetBSD: unistd.h,v 1.7 2015/06/25 18:41:03 joerg Exp $ */ + +/*- + * Copyright (c) 2006 The NetBSD Foundation, Inc. + * All rights reserved. + * + * This code is derived from software contributed to The NetBSD Foundation + * by Christos Zoulas. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS + * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS + * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + */ +#ifndef _SSP_UNISTD_H_ +#define _SSP_UNISTD_H_ + +#include <ssp/ssp.h> + +#if __SSP_FORTIFY_LEVEL > 0 +__BEGIN_DECLS + +__ssp_redirect0(_READ_WRITE_RETURN_TYPE, read, \ + (int __fd, void *__buf, size_t __len), (__fd, __buf, __len)); + +#if __BSD_VISIBLE || __POSIX_VISIBLE >= 200112 || __XSI_VISIBLE >= 4 +__ssp_redirect(ssize_t, readlink, (const char *__restrict __path, \ + char *__restrict __buf, size_t __len), (__path, __buf, __len)); +#endif + +__ssp_redirect_raw(char *, getcwd, (char *__buf, size_t __len), + (__buf, __len), __buf != 0, __ssp_bos); + +__END_DECLS + +#endif /* __SSP_FORTIFY_LEVEL > 0 */ +#endif /* _SSP_UNISTD_H_ */ diff --git a/newlib/libc/include/sys/unistd.h b/newlib/libc/include/sys/unistd.h index 75f8a51..0df4dc3 100644 --- a/newlib/libc/include/sys/unistd.h +++ b/newlib/libc/include/sys/unistd.h @@ -567,4 +567,9 @@ int _EXFUN(unlinkat, (int, const char *, int)); #ifdef __cplusplus } #endif + +#if __SSP_FORTIFY_LEVEL > 0 +#include <ssp/unistd.h> +#endif + #endif /* _SYS_UNISTD_H */
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