1 /* $NetBSD: string.h,v 1.14 2020/09/05 13:37:59 mrg Exp $ */ 2 3 /*- 4 * Copyright (c) 2006 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 #ifndef _SSP_STRING_H_ 32 #define _SSP_STRING_H_ 33 34 #include <sys/cdefs.h> 35 #include <ssp/ssp.h> 36 37 __BEGIN_DECLS 38 void *__memcpy_chk(void *, const void *, size_t, size_t); 39 void *__memmove_chk(void *, const void *, size_t, size_t); 40 void *__memset_chk(void *, int, size_t, size_t); 41 char *__stpcpy_chk(char *, const char *, size_t); 42 char *__strcat_chk(char *, const char *, size_t); 43 char *__strcpy_chk(char *, const char *, size_t); 44 char *__strncat_chk(char *, const char *, size_t, size_t); 45 char *__strncpy_chk(char *, const char *, size_t, size_t); 46 __END_DECLS 47 48 #if __SSP_FORTIFY_LEVEL > 0 49 50 #define __ssp_bos_check3(fun, dst, src, len) \ 51 ((__ssp_bos0(dst) != (size_t)-1) ? \ 52 __builtin___ ## fun ## _chk(dst, src, len, __ssp_bos0(dst)) : \ 53 __ ## fun ## _ichk(dst, src, len)) 54 55 #define __ssp_bos_check2(fun, dst, src) \ 56 ((__ssp_bos0(dst) != (size_t)-1) ? \ 57 __builtin___ ## fun ## _chk(dst, src, __ssp_bos0(dst)) : \ 58 __ ## fun ## _ichk(dst, src)) 59 60 #define __ssp_bos_icheck3_restrict(fun, type1, type2) \ 61 static __inline type1 __ ## fun ## _ichk(type1 __restrict, type2 __restrict, size_t); \ 62 static __inline __attribute__((__always_inline__)) type1 \ 63 __ ## fun ## _ichk(type1 __restrict dst, type2 __restrict src, size_t len) { \ 64 return __builtin___ ## fun ## _chk(dst, src, len, __ssp_bos0(dst)); \ 65 } 66 67 #define __ssp_bos_icheck3(fun, type1, type2) \ 68 static __inline type1 __ ## fun ## _ichk(type1, type2, size_t); \ 69 static __inline __attribute__((__always_inline__)) type1 \ 70 __ ## fun ## _ichk(type1 dst, type2 src, size_t len) { \ 71 return __builtin___ ## fun ## _chk(dst, src, len, __ssp_bos0(dst)); \ 72 } 73 74 #define __ssp_bos_icheck2_restrict(fun, type1, type2) \ 75 static __inline type1 __ ## fun ## _ichk(type1, type2); \ 76 static __inline __attribute__((__always_inline__)) type1 \ 77 __ ## fun ## _ichk(type1 __restrict dst, type2 __restrict src) { \ 78 return __builtin___ ## fun ## _chk(dst, src, __ssp_bos0(dst)); \ 79 } 80 81 __BEGIN_DECLS 82 __ssp_bos_icheck3_restrict(memcpy, void *, const void *) 83 __ssp_bos_icheck3(memmove, void *, const void *) 84 __ssp_bos_icheck3(memset, void *, int) 85 __ssp_bos_icheck2_restrict(stpcpy, char *, const char *) 86 #if __GNUC_PREREQ__(4,8) || defined(__clang__) 87 __ssp_bos_icheck3_restrict(stpncpy, char *, const char *) 88 #endif 89 __ssp_bos_icheck2_restrict(strcpy, char *, const char *) 90 __ssp_bos_icheck2_restrict(strcat, char *, const char *) 91 __ssp_bos_icheck3_restrict(strncpy, char *, const char *) 92 __ssp_bos_icheck3_restrict(strncat, char *, const char *) 93 __END_DECLS 94 95 #define memcpy(dst, src, len) __ssp_bos_check3(memcpy, dst, src, len) 96 #define memmove(dst, src, len) __ssp_bos_check3(memmove, dst, src, len) 97 #define memset(dst, val, len) __ssp_bos_check3(memset, dst, val, len) 98 #define stpcpy(dst, src) __ssp_bos_check2(stpcpy, dst, src) 99 #if __GNUC_PREREQ__(4,8) || defined(__clang__) 100 #define stpncpy(dst, src, len) __ssp_bos_check3(stpncpy, dst, src, len) 101 #endif 102 #define strcpy(dst, src) __ssp_bos_check2(strcpy, dst, src) 103 #define strcat(dst, src) __ssp_bos_check2(strcat, dst, src) 104 #define strncpy(dst, src, len) __ssp_bos_check3(strncpy, dst, src, len) 105 #define strncat(dst, src, len) __ssp_bos_check3(strncat, dst, src, len) 106 107 #endif /* __SSP_FORTIFY_LEVEL > 0 */ 108 #endif /* _SSP_STRING_H_ */ 109
Indexes created Sat Sep 20 22:09:52 GMT 2025