Security/libsecurity_apple_csp/lib/bsobjects.h

   1 /*
   2  * Copyright (c) 2000-2001,2011,2014 Apple Inc. All Rights Reserved.
   3  *
   4  * The contents of this file constitute Original Code as defined in and are
   5  * subject to the Apple Public Source License Version 1.2 (the 'License').
   6  * You may not use this file except in compliance with the License. Please obtain
   7  * a copy of the License at http://www.apple.com/publicsource and read it before
   8  * using this file.
   9  *
  10  * This Original Code and all software distributed under the License are
  11  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS
  12  * OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT
  13  * LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
  14  * PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the
  15  * specific language governing rights and limitations under the License.
  16  */
  17
  18 #ifdef  BSAFE_CSP_ENABLE
  19
  20
  21 //
  22 // bsobjects - C++ adaptations of popular BSafe 4 object types
  23 //
  24 #ifndef _H_BSOBJECTS
  25 #define _H_BSOBJECTS
  26
  27 #include <security_cdsa_utilities/cssmutilities.h>
  28 #include <security_utilities/alloc.h>
  29 #include <aglobal.h>
  30 #include <bsafe.h>
  31
  32 //
  33 // A PodWrapper for BSafe's ITEM objects
  34 //
  35 class BSafeItem : public PodWrapper<BSafeItem, ITEM> {
  36 public:
  37     BSafeItem() { ((ITEM *)this)->data = NULL; len = 0; }
  38     BSafeItem(void *addr, size_t sz)
  39     { ((ITEM *)this)->data = (unsigned char *)addr; len = sz; }
  40     BSafeItem(const CSSM_DATA &cData)
  41     { ((ITEM *)this)->data = cData.Data; len = cData.Length; }
  42     BSafeItem(const ITEM &cData)
  43     { *(ITEM *)this = cData; }
  44
  45     void operator = (const CssmData &cData)
  46     { ((ITEM *)this)->data = (unsigned char *)cData.data(); len = cData.length(); }
  47
  48     void *data() const { return ((ITEM *)this)->data; }
  49     size_t length() const { return len; }
  50
  51     template <class T>
  52     T copy(Allocator &alloc)
  53     { return T(memcpy(alloc.malloc(length()), data(), length()), length()); }
  54
  55     template <class T>
  56     T *copyp(Allocator &alloc)
  57     { return new(alloc) T(copy<T>(alloc)); }
  58
  59     void *operator new (size_t size, Allocator &alloc)
  60     { return alloc.malloc(size); }
  61 };
  62
  63 #endif //_H_BSOBJECTS
  64 #endif  /* BSAFE_CSP_ENABLE */