san/memintrinsics.h

   1 /*
   2  * Copyright (c) 2016 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         return strncpy(dst, src, sz);
  79 }
  80 static inline size_t
  81 __nosan_strlcat(char *dst, const char *src, size_t sz)
  82 {
  83         return strlcat(dst, src, sz);
  84 }
  85 static inline char  *
  86 __nosan_strncat(char *dst, const char *src, size_t sz)
  87 {
  88         return strncat(dst, src, sz);
  89 }
  90 static inline size_t
  91 __nosan_strnlen(const char *src, size_t sz)
  92 {
  93         return strnlen(src, sz);
  94 }
  95 static inline size_t
  96 __nosan_strlen(const char *src)
  97 {
  98         return strlen(src);
  99 }
 100
 101 #if KASAN
 102 void *__asan_memcpy(void *src, const void *dst, size_t sz);
 103 void *__asan_memset(void *src, int c, size_t sz);
 104 void *__asan_memmove(void *src, const void *dst, size_t sz);
 105 void  __asan_bcopy(const void *src, void *dst, size_t sz);
 106 void  __asan_bzero(void *dst, size_t sz);
 107 int   __asan_bcmp(const void *a, const void *b, size_t sz);
 108 int   __asan_memcmp(const void *a, const void *b, size_t sz);
 109
 110 size_t __asan_strlcpy(char *dst, const char *src, size_t sz);
 111 char  *__asan_strncpy(char *dst, const char *src, size_t sz);
 112 size_t __asan_strlcat(char *dst, const char *src, size_t sz);
 113 char  *__asan_strncat(char *dst, const char *src, size_t sz);
 114 size_t __asan_strnlen(const char *src, size_t sz);
 115 size_t __asan_strlen(const char *src);
 116
 117 #define memcpy    __asan_memcpy
 118 #define memmove   __asan_memmove
 119 #define memset    __asan_memset
 120 #define bcopy     __asan_bcopy
 121 #define bzero     __asan_bzero
 122 #define bcmp      __asan_bcmp
 123 #define memcmp    __asan_memcmp
 124
 125 #define strlcpy   __asan_strlcpy
 126 #define strncpy   __asan_strncpy
 127 #define strlcat   __asan_strlcat
 128 #define strncat   __asan_strncat
 129 // #define strnlen   __asan_strnlen
 130 // #define strlen    __asan_strlen
 131
 132 #endif
 133
 134 #endif /* _SAN_MEMINTRINSICS_H_ */