1 /* $NetBSD: strings.h,v 1.3 2008/04/28 20:22:54 martin Exp $ */ 2 3 /*- 4 * 5 * SPDX-License-Identifier: BSD-2-Clause 6 * 7 * Copyright (c) 2007 The NetBSD Foundation, Inc. 8 * All rights reserved. 9 * 10 * This code is derived from software contributed to The NetBSD Foundation 11 * by Christos Zoulas. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 24 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 25 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 32 * POSSIBILITY OF SUCH DAMAGE. 33 */ 34 #ifndef _SSP_STRINGS_H_ 35 #define _SSP_STRINGS_H_ 36 37 #include <ssp/ssp.h> 38 #include <string.h> 39 40 #if __SSP_FORTIFY_LEVEL > 0 41 42 #define _ssp_bcopy(srcvar, src, dstvar, dst, lenvar, len) __extension__ ({ \ 43 const void *srcvar = (src); \ 44 void *dstvar = (dst); \ 45 size_t lenvar = (len); \ 46 ((__ssp_bos0(dstvar) != (size_t)-1) ? \ 47 __builtin___memmove_chk(dstvar, srcvar, lenvar, \ 48 __ssp_bos0(dstvar)) : \ 49 __memmove_ichk(dstvar, srcvar, lenvar)); \ 50 }) 51 52 #define bcopy(src, dst, len) \ 53 _ssp_bcopy(__ssp_var(srcv), src, __ssp_var(dstv), dst, __ssp_var(lenv), len) 54 55 #define _ssp_bzero(dstvar, dst, lenvar, len) __extension__ ({ \ 56 void *dstvar = (dst); \ 57 size_t lenvar = (len); \ 58 ((__ssp_bos0(dstvar) != (size_t)-1) ? \ 59 __builtin___memset_chk(dstvar, 0, lenvar, \ 60 __ssp_bos0(dstvar)) : \ 61 __memset_ichk(dstvar, 0, lenvar)); \ 62 }) 63 64 #define bzero(dst, len) _ssp_bzero(__ssp_var(dstv), dst, __ssp_var(lenv), len) 65 66 __BEGIN_DECLS 67 __ssp_redirect(void, explicit_bzero, (void *__buf, size_t __len), 68 (__buf, __len)); 69 __END_DECLS 70 71 #endif /* __SSP_FORTIFY_LEVEL > 0 */ 72 #endif /* _SSP_STRINGS_H_ */ 73