san/memintrinsics.h

   1 /*
   2  * Copyright (c) 2016-2020 Apple 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 #ifndef _SAN_MEMINTRINSICS_H_
  29 #define _SAN_MEMINTRINSICS_H_
  30
  31 /*
  32  * Non-sanitized versions of memory intrinsics
  33  */
  34 static inline void *
  35 __nosan_memcpy(void *dst, const void *src, size_t sz)
  36 {
  37         return memcpy(dst, src, sz);
  38 }
  39 static inline void *
  40 __nosan_memset(void *src, int c, size_t sz)
  41 {
  42         return memset(src, c, sz);
  43 }
  44 static inline void *
  45 __nosan_memmove(void *src, const void *dst, size_t sz)
  46 {
  47         return memmove(src, dst, sz);
  48 }
  49 static inline int
  50 __nosan_bcmp(const void *a, const void *b, size_t sz)
  51 {
  52         return bcmp(a, b, sz);
  53 }
  54 static inline void
  55 __nosan_bcopy(const void *src, void *dst, size_t sz)
  56 {
  57         bcopy(src, dst, sz);
  58 }
  59 static inline int
  60 __nosan_memcmp(const void *a, const void *b, size_t sz)
  61 {
  62         return memcmp(a, b, sz);
  63 }
  64 static inline void
  65 __nosan_bzero(void *dst, size_t sz)
  66 {
  67         bzero(dst, sz);
  68 }
  69
  70 static inline size_t
  71 __nosan_strlcpy(char *dst, const char *src, size_t sz)
  72 {
  73         return strlcpy(dst, src, sz);
  74 }
  75 static inline char  *
  76 __nosan_strncpy(char *dst, const char *src, size_t sz)
  77 {
  78 #ifdef __clang__
  79 #pragma clang diagnostic push
  80 #pragma clang diagnostic ignored "-Wdeprecated-declarations"
  81 #endif
  82         return strncpy(dst, src, sz);
  83 #ifdef __clang__
  84 #pragma clang diagnostic pop
  85 #endif
  86 }
  87 static inline size_t
  88 __nosan_strlcat(char *dst, const char *src, size_t sz)
  89 {
  90         return strlcat(dst, src, sz);
  91 }
  92 static inline char  *
  93 __nosan_strncat(char *dst, const char *src, size_t sz)
  94 {
  95 #ifdef __clang__
  96 #pragma clang diagnostic push
  97 #pragma clang diagnostic ignored "-Wdeprecated-declarations"
  98 #endif
  99         return strncat(dst, src, sz);
 100 #ifdef __clang__
 101 #pragma clang diagnostic pop
 102 #endif
 103 }
 104 static inline size_t
 105 __nosan_strnlen(const char *src, size_t sz)
 106 {
 107         return strnlen(src, sz);
 108 }
 109 static inline size_t
 110 __nosan_strlen(const char *src)
 111 {
 112         return strlen(src);
 113 }
 114
 115 #if KASAN
 116 void *__asan_memcpy(void *src, const void *dst, size_t sz);
 117 void *__asan_memset(void *src, int c, size_t sz);
 118 void *__asan_memmove(void *src, const void *dst, size_t sz);
 119 void  __asan_bcopy(const void *src, void *dst, size_t sz);
 120 void  __asan_bzero(void *dst, size_t sz);
 121 int   __asan_bcmp(const void *a, const void *b, size_t sz);
 122 int   __asan_memcmp(const void *a, const void *b, size_t sz);
 123
 124 size_t __asan_strlcpy(char *dst, const char *src, size_t sz);
 125 char  *__asan_strncpy(char *dst, const char *src, size_t sz);
 126 size_t __asan_strlcat(char *dst, const char *src, size_t sz);
 127 char  *__asan_strncat(char *dst, const char *src, size_t sz);
 128 size_t __asan_strnlen(const char *src, size_t sz);
 129 size_t __asan_strlen(const char *src);
 130
 131 #define memcpy    __asan_memcpy
 132 #define memmove   __asan_memmove
 133 #define memset    __asan_memset
 134 #define bcopy     __asan_bcopy
 135 #define bzero     __asan_bzero
 136 #define bcmp      __asan_bcmp
 137 #define memcmp    __asan_memcmp
 138
 139 #define strlcpy   __asan_strlcpy
 140 #define strncpy   __asan_strncpy
 141 #define strlcat   __asan_strlcat
 142 #define strncat   __asan_strncat
 143 // #define strnlen   __asan_strnlen
 144 // #define strlen    __asan_strlen
 145
 146 #endif
 147
 148 #endif /* _SAN_MEMINTRINSICS_H_ */