1    :  // Copyright 2015 Google Inc. All Rights Reserved.
   2    :  //
   3    :  // Licensed under the Apache License, Version 2.0 (the "License");
   4    :  // you may not use this file except in compliance with the License.
   5    :  // You may obtain a copy of the License at
   6    :  //
   7    :  //     http://www.apache.org/licenses/LICENSE-2.0
   8    :  //
   9    :  // Unless required by applicable law or agreed to in writing, software
  10    :  // distributed under the License is distributed on an "AS IS" BASIS,
  11    :  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12    :  // See the License for the specific language governing permissions and
  13    :  // limitations under the License.
  14    :  //
  15    :  // Defines the Asan Hot Patching CRT interceptors.
  16    :  //
  17    :  // Hot Patching Asan transformed links modules against these functions
  18    :  // instead of the CRT ones. When hot patching is inactive, these functions
  19    :  // call the respective system functions.
  20    :  // TODO(cseri): When hot patching Asan mode is activated, the import entries
  21    :  // of these functions must be overwritten to call the respective functions
  22    :  // from the SyzyAsan runtime library.
  23    :  #ifndef SYZYGY_AGENT_ASAN_HP_CRT_INTERCEPTORS_H_
  24    :  #define SYZYGY_AGENT_ASAN_HP_CRT_INTERCEPTORS_H_
  25    :  
  26    :  // Exposes the CRT interceptors.
  27  m :  extern "C" {
  28    :  
  29  m :  const void* __cdecl hp_asan_memchr(const unsigned char* ptr,
  30  m :                                     int value,
  31  m :                                     size_t num);
  32    :  
  33  m :  void* __cdecl hp_asan_memcpy(unsigned char* destination,
  34  m :                               const unsigned char* source,
  35  m :                               size_t num);
  36    :  
  37  m :  void* __cdecl hp_asan_memmove(unsigned char* destination,
  38  m :                           const unsigned char* source,
  39  m :                           size_t num);
  40    :  
  41  m :  void* __cdecl hp_asan_memset(unsigned char* ptr, int value, size_t num);
  42    :  
  43  m :  int __cdecl hp_asan_strcmp(const char* str1, const char* str2);
  44    :  
  45  m :  size_t __cdecl hp_asan_strcspn(const char* str1, const char* str2);
  46    :  
  47  m :  size_t __cdecl hp_asan_strlen(const char* str);
  48    :  
  49  m :  char* __cdecl hp_asan_strncat(char* destination,
  50  m :                                const char* source,
  51  m :                                size_t num);
  52    :  
  53  m :  char* __cdecl hp_asan_strncpy(char* destination,
  54  m :                                const char* source,
  55  m :                                size_t num);
  56    :  
  57  m :  const char* __cdecl hp_asan_strpbrk(const char* str1, const char* str2);
  58    :  
  59  m :  const char* __cdecl hp_asan_strrchr(const char* str, int character);
  60    :  
  61  m :  size_t __cdecl hp_asan_strspn(const char* str1, const char* str2);
  62    :  
  63  m :  const char* __cdecl hp_asan_strstr(const char* str1, const char* str2);
  64    :  
  65  m :  const wchar_t* hp_asan_wcschr(const wchar_t* str, wchar_t character);
  66    :  
  67  m :  const wchar_t* hp_asan_wcsrchr(const wchar_t* str, wchar_t character);
  68    :  
  69  m :  const wchar_t* hp_asan_wcsstr(const wchar_t* str, const wchar_t* keys);
  70    :  
  71  m :  }  // extern "C"
  72    :  
  73    :  #endif  // SYZYGY_AGENT_ASAN_HP_CRT_INTERCEPTORS_H_