1/*
2 * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28/*
29 * NOTICE: This file was modified by McAfee Research in 2004 to introduce
30 * support for mandatory and extensible security protections. This notice
31 * is included in support of clause 2.2 (b) of the Apple Public License,
32 * Version 2.0.
33 */
34/*
35 * HISTORY
36 * @OSF_COPYRIGHT@
37 */
38#ifndef _STRING_H_
39#define _STRING_H_ 1
40
41#ifdef MACH_KERNEL_PRIVATE
42#include <types.h>
43#else
44#include <sys/types.h>
45#endif
46
47#ifdef __cplusplus
48extern "C" {
49#endif
50
51#ifndef NULL
52#if defined (__cplusplus)
53#define NULL 0
54#else
55#define NULL ((void *)0)
56#endif
57#endif
58
59extern void *memcpy(void *, const void *, size_t);
60extern int memcmp(const void *, const void *, size_t);
61extern void *memmove(void *, const void *, size_t);
62extern void *memset(void *, int, size_t);
63extern int memset_s(void *, size_t, int, size_t);
64
65extern size_t strlen(const char *);
66extern size_t strnlen(const char *, size_t);
67
68/* strcpy() is being deprecated. Please use strlcpy() instead. */
69extern char *strcpy(char *, const char *) __deprecated;
70extern char *strncpy(char *, const char *, size_t);
71
72extern size_t strlcat(char *, const char *, size_t);
73extern size_t strlcpy(char *, const char *, size_t);
74
75/* strcat() is being deprecated. Please use strlcat() instead. */
76extern char *strcat(char *, const char *) __deprecated;
77extern char *strncat(char *, const char *, size_t);
78
79/* strcmp() is being deprecated. Please use strncmp() instead. */
80extern int strcmp(const char *, const char *);
81extern int strncmp(const char *,const char *, size_t);
82
83extern int strcasecmp(const char *s1, const char *s2);
84extern int strncasecmp(const char *s1, const char *s2, size_t n);
85extern char *strnstr(char *s, const char *find, size_t slen);
86extern char *strchr(const char *s, int c);
87#ifdef XNU_KERNEL_PRIVATE
88extern char *strrchr(const char *s, int c);
89#endif
90extern char *STRDUP(const char *, int);
91extern int strprefix(const char *s1, const char *s2);
92
93extern int bcmp(const void *, const void *, size_t);
94extern void bcopy(const void *, void *, size_t);
95extern void bzero(void *, size_t);
96
97#ifdef PRIVATE
98#include <san/memintrinsics.h>
99#endif
100
101#if defined(__MAC_OS_X_VERSION_MIN_REQUIRED) && __MAC_OS_X_VERSION_MIN_REQUIRED < __MAC_10_13
102/* older deployment target */
103#elif defined(KASAN) || (defined (_FORTIFY_SOURCE) && _FORTIFY_SOURCE == 0)
104/* FORTIFY_SOURCE disabled */
105#else /* _chk macros */
106#if __has_builtin(__builtin___memcpy_chk)
107#define memcpy(dest, src, len) __builtin___memcpy_chk(dest, src, len, __builtin_object_size(dest, 0))
108#endif
109
110#if __has_builtin(__builtin___memmove_chk)
111#define memmove(dest, src, len) __builtin___memmove_chk(dest, src, len, __builtin_object_size(dest, 0))
112#endif
113
114#if __has_builtin(__builtin___strncpy_chk)
115#define strncpy(dest, src, len) __builtin___strncpy_chk(dest, src, len, __builtin_object_size(dest, 1))
116#endif
117
118#if __has_builtin(__builtin___strncat_chk)
119#define strncat(dest, src, len) __builtin___strncat_chk(dest, src, len, __builtin_object_size(dest, 1))
120#endif
121
122#if __has_builtin(__builtin___strlcat_chk)
123#define strlcat(dest, src, len) __builtin___strlcat_chk(dest, src, len, __builtin_object_size(dest, 1))
124#endif
125
126#if __has_builtin(__builtin___strlcpy_chk)
127#define strlcpy(dest, src, len) __builtin___strlcpy_chk(dest, src, len, __builtin_object_size(dest, 1))
128#endif
129
130#if __has_builtin(__builtin___strcpy_chk)
131#define strcpy(dest, src, len) __builtin___strcpy_chk(dest, src, __builtin_object_size(dest, 1))
132#endif
133
134#if __has_builtin(__builtin___strcat_chk)
135#define strcat(dest, src) __builtin___strcat_chk(dest, src, __builtin_object_size(dest, 1))
136#endif
137
138#if __has_builtin(__builtin___memmove_chk)
139#define bcopy(src, dest, len) __builtin___memmove_chk(dest, src, len, __builtin_object_size(dest, 0))
140#endif
141
142#endif /* _chk macros */
143#ifdef __cplusplus
144}
145#endif
146
147#endif /* _STRING_H_ */
148