crypto/external/bsd/heimdal/dist/lib/asn1/der.c

   1 /*      $NetBSD: der.c,v 1.1.1.2 2014/04/24 12:45:28 pettai Exp $       */
   2
   3 /*
   4  * Copyright (c) 1997 - 2005 Kungliga Tekniska Högskolan
   5  * (Royal Institute of Technology, Stockholm, Sweden).
   6  * All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  *
  19  * 3. Neither the name of the Institute nor the names of its contributors
  20  *    may be used to endorse or promote products derived from this software
  21  *    without specific prior written permission.
  22  *
  23  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  */
  35
  36 #include "der_locl.h"
  37 #include <krb5/com_err.h>
  38 #include <sys/types.h>
  39 #include <sys/stat.h>
  40 #include <krb5/getarg.h>
  41 #include <err.h>
  42
  43 __RCSID("NetBSD");
  44
  45
  46 static const char *class_names[] = {
  47     "UNIV",                     /* 0 */
  48     "APPL",                     /* 1 */
  49     "CONTEXT",                  /* 2 */
  50     "PRIVATE"                   /* 3 */
  51 };
  52
  53 static const char *type_names[] = {
  54     "PRIM",                     /* 0 */
  55     "CONS"                      /* 1 */
  56 };
  57
  58 static const char *tag_names[] = {
  59     "EndOfContent",             /* 0 */
  60     "Boolean",                  /* 1 */
  61     "Integer",                  /* 2 */
  62     "BitString",                /* 3 */
  63     "OctetString",              /* 4 */
  64     "Null",                     /* 5 */
  65     "ObjectID",                 /* 6 */
  66     NULL,                       /* 7 */
  67     NULL,                       /* 8 */
  68     NULL,                       /* 9 */
  69     "Enumerated",               /* 10 */
  70     NULL,                       /* 11 */
  71     NULL,                       /* 12 */
  72     NULL,                       /* 13 */
  73     NULL,                       /* 14 */
  74     NULL,                       /* 15 */
  75     "Sequence",                 /* 16 */
  76     "Set",                      /* 17 */
  77     NULL,                       /* 18 */
  78     "PrintableString",          /* 19 */
  79     NULL,                       /* 20 */
  80     NULL,                       /* 21 */
  81     "IA5String",                /* 22 */
  82     "UTCTime",                  /* 23 */
  83     "GeneralizedTime",          /* 24 */
  84     NULL,                       /* 25 */
  85     "VisibleString",            /* 26 */
  86     "GeneralString",            /* 27 */
  87     NULL,                       /* 28 */
  88     NULL,                       /* 29 */
  89     "BMPString"                 /* 30 */
  90 };
  91
  92 static int
  93 get_type(const char *name, const char *list[], unsigned len)
  94 {
  95     unsigned i;
  96     for (i = 0; i < len; i++)
  97         if (list[i] && strcasecmp(list[i], name) == 0)
  98             return i;
  99     return -1;
 100 }
 101
 102 #define SIZEOF_ARRAY(a) (sizeof((a))/sizeof((a)[0]))
 103
 104 const char *
 105 der_get_class_name(unsigned num)
 106 {
 107     if (num >= SIZEOF_ARRAY(class_names))
 108         return NULL;
 109     return class_names[num];
 110 }
 111
 112 int
 113 der_get_class_num(const char *name)
 114 {
 115     return get_type(name, class_names, SIZEOF_ARRAY(class_names));
 116 }
 117
 118 const char *
 119 der_get_type_name(unsigned num)
 120 {
 121     if (num >= SIZEOF_ARRAY(type_names))
 122         return NULL;
 123     return type_names[num];
 124 }
 125
 126 int
 127 der_get_type_num(const char *name)
 128 {
 129     return get_type(name, type_names, SIZEOF_ARRAY(type_names));
 130 }
 131
 132 const char *
 133 der_get_tag_name(unsigned num)
 134 {
 135     if (num >= SIZEOF_ARRAY(tag_names))
 136         return NULL;
 137     return tag_names[num];
 138 }
 139
 140 int
 141 der_get_tag_num(const char *name)
 142 {
 143     return get_type(name, tag_names, SIZEOF_ARRAY(tag_names));
 144 }