1 : /*
2 : * Copyright (c) 2007 Apple Inc. All rights reserved.
3 : *
4 : * @APPLE_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. Please obtain a copy of the License at
10 : * http://www.opensource.apple.com/apsl/ and read it before using this
11 : * file.
12 : *
13 : * The Original Code and all software distributed under the License are
14 : * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 : * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 : * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 : * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 : * Please see the License for the specific language governing rights and
19 : * limitations under the License.
20 : *
21 : * @APPLE_LICENSE_HEADER_END@
22 : */
23 :
24 : #ifndef _STRING_H_
25 : # error "Never use <secure/_string.h> directly; include <string.h> instead."
26 : #endif
27 :
28 : #ifndef _SECURE__STRING_H_
29 : #define _SECURE__STRING_H_
30 :
31 : #include <sys/cdefs.h>
32 : #include <secure/_common.h>
33 :
34 : #if _USE_FORTIFY_LEVEL > 0
35 :
36 : /* memcpy, mempcpy, memmove, memset, strcpy, stpcpy, strncpy, strcat
37 : and strncat */
38 :
39 : #undef memcpy
40 : #undef memmove
41 : #undef memset
42 : #undef strcpy
43 : #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
44 : #undef stpcpy
45 : #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
46 : #undef strncpy
47 : #undef strcat
48 : #undef strncat
49 :
50 : #define memcpy(dest, src, len) \
51 : ((__darwin_obsz0 (dest) != (size_t) -1) \
52 : ? __builtin___memcpy_chk (dest, src, len, __darwin_obsz0 (dest)) \
53 : : __inline_memcpy_chk (dest, src, len))
54 :
55 : static __inline void *
56 4487470 : __inline_memcpy_chk (void *__dest, const void *__src, size_t __len)
57 : {
58 4487470 : return __builtin___memcpy_chk (__dest, __src, __len, __darwin_obsz0(__dest));
59 : }
60 :
61 : #define memmove(dest, src, len) \
62 : ((__darwin_obsz0 (dest) != (size_t) -1) \
63 : ? __builtin___memmove_chk (dest, src, len, __darwin_obsz0 (dest)) \
64 : : __inline_memmove_chk (dest, src, len))
65 :
66 : static __inline void *
67 36143 : __inline_memmove_chk (void *__dest, const void *__src, size_t __len)
68 : {
69 36143 : return __builtin___memmove_chk (__dest, __src, __len, __darwin_obsz0(__dest));
70 : }
71 :
72 : #define memset(dest, val, len) \
73 : ((__darwin_obsz0 (dest) != (size_t) -1) \
74 : ? __builtin___memset_chk (dest, val, len, __darwin_obsz0 (dest)) \
75 : : __inline_memset_chk (dest, val, len))
76 :
77 : static __inline void *
78 597311 : __inline_memset_chk (void *__dest, int __val, size_t __len)
79 : {
80 597311 : return __builtin___memset_chk (__dest, __val, __len, __darwin_obsz0(__dest));
81 : }
82 :
83 : #define strcpy(dest, src) \
84 : ((__darwin_obsz0 (dest) != (size_t) -1) \
85 : ? __builtin___strcpy_chk (dest, src, __darwin_obsz (dest)) \
86 : : __inline_strcpy_chk (dest, src))
87 :
88 : static __inline char *
89 24806 : __inline_strcpy_chk (char *__restrict __dest, const char *__restrict __src)
90 : {
91 24806 : return __builtin___strcpy_chk (__dest, __src, __darwin_obsz(__dest));
92 : }
93 :
94 : #if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
95 : #define stpcpy(dest, src) \
96 : ((__darwin_obsz0 (dest) != (size_t) -1) \
97 : ? __builtin___stpcpy_chk (dest, src, __darwin_obsz (dest)) \
98 : : __inline_stpcpy_chk (dest, src))
99 :
100 : static __inline char *
101 : __inline_stpcpy_chk (char *__dest, const char *__src)
102 : {
103 : return __builtin___stpcpy_chk (__dest, __src, __darwin_obsz(__dest));
104 : }
105 : #endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
106 :
107 : #define strncpy(dest, src, len) \
108 : ((__darwin_obsz0 (dest) != (size_t) -1) \
109 : ? __builtin___strncpy_chk (dest, src, len, __darwin_obsz (dest)) \
110 : : __inline_strncpy_chk (dest, src, len))
111 :
112 : static __inline char *
113 9063 : __inline_strncpy_chk (char *__restrict __dest, const char *__restrict __src,
114 9063 : size_t __len)
115 : {
116 9063 : return __builtin___strncpy_chk (__dest, __src, __len, __darwin_obsz(__dest));
117 : }
118 :
119 : #define strcat(dest, src) \
120 : ((__darwin_obsz0 (dest) != (size_t) -1) \
121 : ? __builtin___strcat_chk (dest, src, __darwin_obsz (dest)) \
122 : : __inline_strcat_chk (dest, src))
123 :
124 : static __inline char *
125 : __inline_strcat_chk (char *__restrict __dest, const char *__restrict __src)
126 : {
127 : return __builtin___strcat_chk (__dest, __src, __darwin_obsz(__dest));
128 : }
129 :
130 : #define strncat(dest, src, len) \
131 : ((__darwin_obsz0 (dest) != (size_t) -1) \
132 : ? __builtin___strncat_chk (dest, src, len, __darwin_obsz (dest)) \
133 : : __inline_strncat_chk (dest, src, len))
134 :
135 : static __inline char *
136 : __inline_strncat_chk (char *__restrict __dest, const char *__restrict __src,
137 : size_t __len)
138 : {
139 : return __builtin___strncat_chk (__dest, __src, __len, __darwin_obsz(__dest));
140 : }
141 :
142 : #endif
143 : #endif
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