SecuritySNACCRuntime/c-lib/src/asn-bool.c

   1 /*
   2  * Copyright (c) 2000-2001 Apple Computer, 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
  19 /*
  20  * asn_bool.c
  21  *
  22  * MS 92
  23  * Copyright (C) 1992 Michael Sample and the University of British Columbia
  24  *
  25  * This library is free software; you can redistribute it and/or
  26  * modify it provided that this copyright/license information is retained
  27  * in original form.
  28  *
  29  * If you modify this file, you must clearly indicate your changes.
  30  *
  31  * This source code is distributed in the hope that it will be
  32  * useful, but WITHOUT ANY WARRANTY; without even the implied warranty
  33  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  34  *
  35  * $Header: /cvs/Darwin/Security/SecuritySNACCRuntime/c-lib/src/asn-bool.c,v 1.1.1.1 2001/05/18 23:14:08 mb Exp $
  36  * $Log: asn-bool.c,v $
  37  * Revision 1.1.1.1  2001/05/18 23:14:08  mb
  38  * Move from private repository to open source repository
  39  *
  40  * Revision 1.2  2001/05/05 00:59:25  rmurphy
  41  * Adding darwin license headers
  42  *
  43  * Revision 1.1.1.1  1999/03/16 18:06:30  aram
  44  * Originals from SMIME Free Library.
  45  *
  46  * Revision 1.3  1995/07/24 21:04:49  rj
  47  * changed `_' to `-' in file names.
  48  *
  49  * Revision 1.2  1994/09/01  00:05:57  rj
  50  * reduce the risk of unwanted surprises with macro expansion by properly separating the C tokens.
  51  *
  52  * Revision 1.1  1994/08/28  09:45:51  rj
  53  * first check-in. for a list of changes to the snacc-1.1 distribution please refer to the ChangeLog.
  54  *
  55  */
  56
  57 #include "asn-config.h"
  58 #include "asn-len.h"
  59 #include "asn-tag.h"
  60 #include "asn-bool.h"
  61
  62 /*
  63  * encodes universal TAG LENGTH and Contents of and ASN.1 BOOLEAN
  64  */
  65 AsnLen
  66 BEncAsnBool PARAMS ((b, data),
  67     BUF_TYPE b _AND_
  68     AsnBool *data)
  69 {
  70     AsnLen len;
  71
  72     len =  BEncAsnBoolContent (b, data);
  73     len += BEncDefLen (b, len);
  74     len += BEncTag1 (b, UNIV, PRIM, BOOLEAN_TAG_CODE);
  75     return len;
  76 }  /* BEncAsnBool */
  77
  78 /*
  79  * decodes universal TAG LENGTH and Contents of and ASN.1 BOOLEAN
  80  */
  81 void
  82 BDecAsnBool PARAMS ((b, result, bytesDecoded, env),
  83     BUF_TYPE   b _AND_
  84     AsnBool    *result _AND_
  85     AsnLen *bytesDecoded _AND_
  86     jmp_buf env)
  87 {
  88     AsnTag tag;
  89     AsnLen elmtLen;
  90
  91     if ((tag = BDecTag (b, bytesDecoded, env)) != MAKE_TAG_ID (UNIV, PRIM, BOOLEAN_TAG_CODE))
  92     {
  93          Asn1Error ("BDecAsnBool: ERROR - wrong tag on BOOLEAN.\n");
  94          longjmp (env, -40);
  95     }
  96
  97     elmtLen = BDecLen (b, bytesDecoded, env);
  98     BDecAsnBoolContent (b, tag, elmtLen, result, bytesDecoded, env);
  99
 100 }  /* BDecAsnBool */
 101
 102 /*
 103  * Encodes just the content of the given BOOLEAN value to the given buffer.
 104  */
 105 AsnLen
 106 BEncAsnBoolContent PARAMS ((b, data),
 107     BUF_TYPE  b _AND_
 108     AsnBool  *data)
 109 {
 110     BufPutByteRvs (b, *data ? 0xFF : 0);
 111     return 1;
 112 }  /* BEncAsnBoolContent */
 113
 114 /*
 115  * Decodes just the content of an ASN.1 BOOLEAN from the given buffer.
 116  * longjmps if there is a buffer reading problem
 117  */
 118 void
 119 BDecAsnBoolContent PARAMS ((b, tagId, len, result, bytesDecoded, env),
 120     BUF_TYPE b _AND_
 121     AsnTag tagId _AND_
 122     AsnLen len _AND_
 123     AsnBool  *result _AND_
 124     AsnLen  *bytesDecoded _AND_
 125     jmp_buf env)
 126 {
 127     if (len != 1)
 128     {
 129         Asn1Error ("BDecAsnBoolContent: ERROR - BOOLEAN length must be 1\n");
 130         longjmp (env,-5);
 131     }
 132
 133     (*bytesDecoded)++;
 134     *result = (BufGetByte (b) != 0);
 135
 136     if (BufReadError (b))
 137     {
 138          Asn1Error ("BDecAsnBoolContent: ERROR - decoded past end of data\n");
 139          longjmp (env, -6);
 140     }
 141 }  /* BDecAsnBoolContent */
 142
 143 /*
 144  * Prints the given BOOLEAN to the given FILE * in ASN.1 Value notation.
 145  * Does not use the indent.
 146  */
 147 void
 148 PrintAsnBool PARAMS ((f, v, indent),
 149     FILE *f _AND_
 150     AsnBool *v _AND_
 151     unsigned short int indent)
 152 {
 153     if (*v)
 154         fprintf (f, "TRUE");
 155     else
 156         fprintf (f, "FALSE");
 157 }