crypto/asn1/tasn_prn.c

   1 /* tasn_prn.c */
   2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
   3  * project 2000.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2000 The OpenSSL Project.  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
  17  *    the documentation and/or other materials provided with the
  18  *    distribution.
  19  *
  20  * 3. All advertising materials mentioning features or use of this
  21  *    software must display the following acknowledgment:
  22  *    "This product includes software developed by the OpenSSL Project
  23  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  24  *
  25  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  26  *    endorse or promote products derived from this software without
  27  *    prior written permission. For written permission, please contact
  28  *    licensing@OpenSSL.org.
  29  *
  30  * 5. Products derived from this software may not be called "OpenSSL"
  31  *    nor may "OpenSSL" appear in their names without prior written
  32  *    permission of the OpenSSL Project.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  39  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  40  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  41  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  42  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  43  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  44  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  47  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  48  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  49  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  50  * OF THE POSSIBILITY OF SUCH DAMAGE.
  51  * ====================================================================
  52  *
  53  * This product includes cryptographic software written by Eric Young
  54  * (eay@cryptsoft.com).  This product includes software written by Tim
  55  * Hudson (tjh@cryptsoft.com).
  56  *
  57  */
  58
  59
  60 #include <stddef.h>
  61 #include <openssl/asn1.h>
  62 #include <openssl/objects.h>
  63 #include <openssl/buffer.h>
  64 #include <openssl/err.h>
  65 #include <openssl/nasn.h>
  66
  67 /* Print routines. Print out a whole structure from a template.
  68  */
  69
  70 static int asn1_item_print_nm(BIO *out, void *fld, int indent, const ASN1_ITEM *it, const char *name);
  71
  72 int ASN1_item_print(BIO *out, void *fld, int indent, const ASN1_ITEM *it)
  73 {
  74         return asn1_item_print_nm(out, fld, indent, it, it->sname);
  75 }
  76
  77 static int asn1_item_print_nm(BIO *out, void *fld, int indent, const ASN1_ITEM *it, const char *name)
  78 {
  79         ASN1_STRING *str;
  80         const ASN1_TEMPLATE *tt;
  81         void *tmpfld;
  82         int i;
  83         if(!fld) {
  84                 BIO_printf(out, "%*s%s ABSENT\n", indent, "", name);
  85                 return 1;
  86         }
  87         switch(it->itype) {
  88
  89                 case ASN1_ITYPE_PRIMITIVE:
  90                 if(it->templates)
  91                         return ASN1_template_print(out, fld, indent, it->templates);
  92                 return asn1_primitive_print(out, fld, it->utype, indent, name);
  93                 break;
  94
  95                 case ASN1_ITYPE_MSTRING:
  96                 str = fld;
  97                 return asn1_primitive_print(out, fld, str->type, indent, name);
  98
  99                 case ASN1_ITYPE_EXTERN:
 100                 BIO_printf(out, "%*s%s:EXTERNAL TYPE %s %s\n", indent, "", name, it->sname, fld ? "" : "ABSENT");
 101                 return 1;
 102                 case ASN1_ITYPE_COMPAT:
 103                 BIO_printf(out, "%*s%s:COMPATIBLE TYPE %s %s\n", indent, "", name, it->sname, fld ? "" : "ABSENT");
 104                 return 1;
 105
 106
 107                 case ASN1_ITYPE_CHOICE:
 108                 /* CHOICE type, get selector */
 109                 i = asn1_get_choice_selector(fld, it);
 110                 /* This should never happen... */
 111                 if((i < 0) || (i >= it->tcount)) {
 112                         BIO_printf(out, "%s selector [%d] out of range\n", it->sname, i);
 113                         return 1;
 114                 }
 115                 tt = it->templates + i;
 116                 tmpfld = asn1_get_field(fld, tt);
 117                 return ASN1_template_print(out, tmpfld, indent, tt);
 118
 119                 case ASN1_ITYPE_SEQUENCE:
 120                 BIO_printf(out, "%*s%s {\n", indent, "", name);
 121                 /* Get each field entry */
 122                 for(i = 0, tt = it->templates; i < it->tcount; i++, tt++) {
 123                         tmpfld = asn1_get_field(fld, tt);
 124                         ASN1_template_print(out, tmpfld, indent + 2, tt);
 125                 }
 126                 BIO_printf(out, "%*s}\n", indent, "");
 127                 return 1;
 128
 129                 default:
 130                 return 0;
 131         }
 132 }
 133
 134 int ASN1_template_print(BIO *out, void *fld, int indent, const ASN1_TEMPLATE *tt)
 135 {
 136         int i, flags;
 137 #if 0
 138         if(!fld) return 0;
 139 #endif
 140         flags = tt->flags;
 141         if(flags & ASN1_TFLG_SK_MASK) {
 142                 char *tname;
 143                 void *skitem;
 144                 /* SET OF, SEQUENCE OF */
 145                 if(flags & ASN1_TFLG_SET_OF) tname = "SET";
 146                 else tname = "SEQUENCE";
 147                 if(fld) {
 148                         BIO_printf(out, "%*s%s OF %s {\n", indent, "", tname, tt->field_name);
 149                         for(i = 0; i < sk_num(fld); i++) {
 150                                 skitem = sk_value(fld, i);
 151                                 asn1_item_print_nm(out, skitem, indent + 2, tt->item, "");
 152                         }
 153                         BIO_printf(out, "%*s}\n", indent, "");
 154                 } else
 155                         BIO_printf(out, "%*s%s OF %s ABSENT\n", indent, "", tname, tt->field_name);
 156                 return 1;
 157         }
 158         return asn1_item_print_nm(out, fld, indent, tt->item, tt->field_name);
 159 }
 160
 161 static int asn1_primitive_print(BIO *out, void *fld, long utype, int indent, const char *name)
 162 {
 163         ASN1_STRING *str = fld;
 164         if(fld) {
 165                 if(utype == V_ASN1_BOOLEAN) {
 166                         int *bool = fld;
 167 if(*bool == -1) printf("BOOL MISSING\n");
 168                         BIO_printf(out, "%*s%s:%s", indent, "", "BOOLEAN", *bool ? "TRUE" : "FALSE");
 169                 } else if((utype == V_ASN1_INTEGER)
 170                           || (utype == V_ASN1_ENUMERATED)) {
 171                         char *s, *nm;
 172                         s = i2s_ASN1_INTEGER(NULL, fld);
 173                         if(utype == V_ASN1_INTEGER) nm = "INTEGER";
 174                         else nm = "ENUMERATED";
 175                         BIO_printf(out, "%*s%s:%s", indent, "", nm, s);
 176                         OPENSSL_free(s);
 177                 } else if(utype == V_ASN1_NULL) {
 178                         BIO_printf(out, "%*s%s", indent, "", "NULL");
 179                 } else if(utype == V_ASN1_UTCTIME) {
 180                         BIO_printf(out, "%*s%s:%s:", indent, "", name, "UTCTIME");
 181                         ASN1_UTCTIME_print(out, str);
 182                 } else if(utype == V_ASN1_GENERALIZEDTIME) {
 183                         BIO_printf(out, "%*s%s:%s:", indent, "", name, "GENERALIZEDTIME");
 184                         ASN1_GENERALIZEDTIME_print(out, str);
 185                 } else if(utype == V_ASN1_OBJECT) {
 186                         char objbuf[80], *ln;
 187                         ln = OBJ_nid2ln(OBJ_obj2nid(fld));
 188                         if(!ln) ln = "";
 189                         OBJ_obj2txt(objbuf, 80, fld, 1);
 190                         BIO_printf(out, "%*s%s:%s (%s)", indent, "", "OBJECT", ln, objbuf);
 191                 } else {
 192                         BIO_printf(out, "%*s%s:", indent, "", name);
 193                         ASN1_STRING_print_ex(out, str, ASN1_STRFLGS_DUMP_UNKNOWN|ASN1_STRFLGS_SHOW_TYPE);
 194                 }
 195                 BIO_printf(out, "\n");
 196         } else BIO_printf(out, "%*s%s [ABSENT]\n", indent, "", name);
 197         return 1;
 198 }