lib/roken/win32_alloc.c

   1 /***********************************************************************
   2  * Copyright (c) 2012, Secure Endpoints Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  *
   9  * - Redistributions of source code must retain the above copyright
  10  *   notice, this list of conditions and the following disclaimer.
  11  *
  12  * - Redistributions in binary form must reproduce the above copyright
  13  *   notice, this list of conditions and the following disclaimer in
  14  *   the documentation and/or other materials provided with the
  15  *   distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  18  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  19  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  20  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  21  * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
  22  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  23  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  24  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  26  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  28  * OF THE POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  **********************************************************************/
  31 #include <config.h>
  32 #include "roken.h"
  33 #undef calloc
  34 #undef malloc
  35 #undef free
  36 #undef strdup
  37 #undef wcsdup
  38
  39 /*
  40  * Windows executables and dlls suffer when memory is
  41  * allocated with one allocator and deallocated with
  42  * another because each allocator is backed by a separate
  43  * heap.  Reduce the exposure by ensuring that all
  44  * binaries that are built using roken will build against
  45  * same allocator.
  46  */
  47
  48 ROKEN_LIB_FUNCTION void * ROKEN_LIB_CALL
  49 rk_calloc(size_t elements, size_t size)
  50 {
  51     return calloc( elements, size);
  52 }
  53
  54 ROKEN_LIB_FUNCTION void ROKEN_LIB_CALL
  55 rk_free(void * ptr)
  56 {
  57     free( ptr);
  58 }
  59
  60 ROKEN_LIB_FUNCTION void * ROKEN_LIB_CALL
  61 rk_malloc(size_t size)
  62 {
  63     return malloc( size);
  64 }
  65
  66 ROKEN_LIB_FUNCTION char * ROKEN_LIB_CALL
  67 rk_strdup(const char *str)
  68 {
  69     return strdup( str);
  70 }
  71
  72 ROKEN_LIB_FUNCTION unsigned short * ROKEN_LIB_CALL
  73 rk_wcsdup(const unsigned short *str)
  74 {
  75     return wcsdup( str);
  76 }