OSX/libsecurity_keychain/libDER/libDER/libDER_config.h

   1 /*
   2  * Copyright (c) 2005-2007,2011-2012,2014 Apple Inc. All Rights Reserved.
   3  *
   4  * @APPLE_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. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23
  24
  25 /*
  26  * libDER_config.h - platform dependent #defines and typedefs for libDER
  27  *
  28  */
  29
  30 #ifndef _LIB_DER_CONFIG_H_
  31 #define _LIB_DER_CONFIG_H_
  32
  33 #include <stdint.h>
  34 #include <string.h>
  35
  36 /* include defintion of DERSize and DERByte */
  37 #include "libDER/oids.h"
  38
  39 #ifdef __cplusplus
  40 extern "C" {
  41 #endif
  42
  43 /*
  44  * Basic data types: unsigned 8-bit integer, unsigned 32-bit integer
  45  */
  46 typedef uint16_t DERShort;
  47
  48
  49 /*
  50  * Use these #defines of you have memset, memmove, and memcmp; else
  51  * write your own equivalents.
  52  */
  53
  54 #define DERMemset(ptr, c, len)          memset(ptr, c, len)
  55 #define DERMemmove(dst, src, len)       memmove(dst, src, len)
  56 #define DERMemcmp(b1, b2, len)          memcmp(b1, b2, len)
  57
  58
  59 /***
  60  *** Compile time options to trim size of the library.
  61  ***/
  62
  63 /* enable general DER encode */
  64 #define DER_ENCODE_ENABLE               1
  65
  66 /* enable general DER decode */
  67 #define DER_DECODE_ENABLE               1
  68
  69 #ifndef DER_MULTIBYTE_TAGS
  70 /* enable multibyte tag support. */
  71 #define DER_MULTIBYTE_TAGS              1
  72 #endif
  73
  74 #ifndef DER_TAG_SIZE
  75 /* Iff DER_MULTIBYTE_TAGS is 1 this is the sizeof(DERTag) in bytes. Note that
  76    tags are still encoded and decoded from a minimally encoded DER
  77    represantation.  This value determines how big each DERItemSpecs is, we
  78    choose 2 since that makes DERItemSpecs 8 bytes wide.  */
  79 #define DER_TAG_SIZE            2
  80 #endif
  81
  82
  83 /* ---------------------- Do not edit below this line ---------------------- */
  84
  85 /*
  86  * Logical representation of a tag (the encoded representation is always in
  87  * the minimal number of bytes). The top 3 bits encode class and method
  88  * The remaining bits encode the tag value.  To obtain smaller DERItemSpecs
  89  * sizes, choose the smallest type that fits your needs.  Most standard ASN.1
  90  * usage only needs single byte tags, but ocasionally custom applications
  91  * require a larger tag namespace.
  92  */
  93 #if DER_MULTIBYTE_TAGS
  94
  95 #if DER_TAG_SIZE == 1
  96 typedef uint8_t DERTag;
  97 #elif DER_TAG_SIZE == 2
  98 typedef uint16_t DERTag;
  99 #elif DER_TAG_SIZE == 4
 100 typedef uint32_t DERTag;
 101 #elif DER_TAG_SIZE == 8
 102 typedef uint64_t DERTag;
 103 #else
 104 #error DER_TAG_SIZE invalid
 105 #endif
 106
 107 #else /* DER_MULTIBYTE_TAGS */
 108 typedef DERByte DERTag;
 109 #endif /* !DER_MULTIBYTE_TAGS */
 110
 111 #ifdef __cplusplus
 112 }
 113 #endif
 114
 115 #endif  /* _LIB_DER_CONFIG_H_ */