crypto/x509v3/v3_prn.c

   1 /* v3_prn.c */
   2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
   3  * project 1999.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 1999 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 /* X509 v3 extension utilities */
  59
  60 #include <stdio.h>
  61 #include "cryptlib.h"
  62 #include <openssl/conf.h>
  63 #include <openssl/x509v3.h>
  64
  65 /* Extension printing routines */
  66
  67 static int unknown_ext_print(BIO *out, X509_EXTENSION *ext, unsigned long flag, int indent, int supported);
  68
  69 /* Print out a name+value stack */
  70
  71 void X509V3_EXT_val_prn(BIO *out, STACK_OF(CONF_VALUE) *val, int indent, int ml)
  72 {
  73         int i;
  74         CONF_VALUE *nval;
  75         if(!val) return;
  76         if(!ml || !sk_CONF_VALUE_num(val)) {
  77                 BIO_printf(out, "%*s", indent, "");
  78                 if(!sk_CONF_VALUE_num(val)) BIO_puts(out, "<EMPTY>\n");
  79         }
  80         for(i = 0; i < sk_CONF_VALUE_num(val); i++) {
  81                 if(ml) BIO_printf(out, "%*s", indent, "");
  82                 else if(i > 0) BIO_printf(out, ", ");
  83                 nval = sk_CONF_VALUE_value(val, i);
  84                 if(!nval->name) BIO_puts(out, nval->value);
  85                 else if(!nval->value) BIO_puts(out, nval->name);
  86 #ifndef CHARSET_EBCDIC
  87                 else BIO_printf(out, "%s:%s", nval->name, nval->value);
  88 #else
  89                 else {
  90                         int len;
  91                         char *tmp;
  92                         len = strlen(nval->value)+1;
  93                         tmp = OPENSSL_malloc(len);
  94                         if (tmp)
  95                         {
  96                                 ascii2ebcdic(tmp, nval->value, len);
  97                                 BIO_printf(out, "%s:%s", nval->name, tmp);
  98                                 OPENSSL_free(tmp);
  99                         }
 100                 }
 101 #endif
 102                 if(ml) BIO_puts(out, "\n");
 103         }
 104 }
 105
 106 /* Main routine: print out a general extension */
 107
 108 int X509V3_EXT_print(BIO *out, X509_EXTENSION *ext, unsigned long flag, int indent)
 109 {
 110         void *ext_str = NULL;
 111         char *value = NULL;
 112         const unsigned char *p;
 113         X509V3_EXT_METHOD *method;
 114         STACK_OF(CONF_VALUE) *nval = NULL;
 115         int ok = 1;
 116
 117         if(!(method = X509V3_EXT_get(ext)))
 118                 return unknown_ext_print(out, ext, flag, indent, 0);
 119         p = ext->value->data;
 120         if(method->it) ext_str = ASN1_item_d2i(NULL, &p, ext->value->length, ASN1_ITEM_ptr(method->it));
 121         else ext_str = method->d2i(NULL, &p, ext->value->length);
 122
 123         if(!ext_str) return unknown_ext_print(out, ext, flag, indent, 1);
 124
 125         if(method->i2s) {
 126                 if(!(value = method->i2s(method, ext_str))) {
 127                         ok = 0;
 128                         goto err;
 129                 }
 130 #ifndef CHARSET_EBCDIC
 131                 BIO_printf(out, "%*s%s", indent, "", value);
 132 #else
 133                 {
 134                         int len;
 135                         char *tmp;
 136                         len = strlen(value)+1;
 137                         tmp = OPENSSL_malloc(len);
 138                         if (tmp)
 139                         {
 140                                 ascii2ebcdic(tmp, value, len);
 141                                 BIO_printf(out, "%*s%s", indent, "", tmp);
 142                                 OPENSSL_free(tmp);
 143                         }
 144                 }
 145 #endif
 146         } else if(method->i2v) {
 147                 if(!(nval = method->i2v(method, ext_str, NULL))) {
 148                         ok = 0;
 149                         goto err;
 150                 }
 151                 X509V3_EXT_val_prn(out, nval, indent,
 152                                  method->ext_flags & X509V3_EXT_MULTILINE);
 153         } else if(method->i2r) {
 154                 if(!method->i2r(method, ext_str, out, indent)) ok = 0;
 155         } else ok = 0;
 156
 157         err:
 158                 sk_CONF_VALUE_pop_free(nval, X509V3_conf_free);
 159                 if(value) OPENSSL_free(value);
 160                 if(method->it) ASN1_item_free(ext_str, ASN1_ITEM_ptr(method->it));
 161                 else method->ext_free(ext_str);
 162                 return ok;
 163 }
 164
 165 int X509V3_extensions_print(BIO *bp, char *title, STACK_OF(X509_EXTENSION) *exts, unsigned long flag, int indent)
 166 {
 167         int i, j;
 168
 169         if(sk_X509_EXTENSION_num(exts) <= 0) return 1;
 170
 171         if(title)
 172                 {
 173                 BIO_printf(bp,"%*s%s:\n",indent, "", title);
 174                 indent += 4;
 175                 }
 176
 177         for (i=0; i<sk_X509_EXTENSION_num(exts); i++)
 178                 {
 179                 ASN1_OBJECT *obj;
 180                 X509_EXTENSION *ex;
 181                 ex=sk_X509_EXTENSION_value(exts, i);
 182                 if (indent && BIO_printf(bp,"%*s",indent, "") <= 0) return 0;
 183                 obj=X509_EXTENSION_get_object(ex);
 184                 i2a_ASN1_OBJECT(bp,obj);
 185                 j=X509_EXTENSION_get_critical(ex);
 186                 if (BIO_printf(bp,": %s\n",j?"critical":"") <= 0)
 187                         return 0;
 188                 if(!X509V3_EXT_print(bp, ex, flag, indent + 4))
 189                         {
 190                         BIO_printf(bp, "%*s", indent + 4, "");
 191                         M_ASN1_OCTET_STRING_print(bp,ex->value);
 192                         }
 193                 if (BIO_write(bp,"\n",1) <= 0) return 0;
 194                 }
 195         return 1;
 196 }
 197
 198 static int unknown_ext_print(BIO *out, X509_EXTENSION *ext, unsigned long flag, int indent, int supported)
 199 {
 200         switch(flag & X509V3_EXT_UNKNOWN_MASK) {
 201
 202                 case X509V3_EXT_DEFAULT:
 203                 return 0;
 204
 205                 case X509V3_EXT_ERROR_UNKNOWN:
 206                 if(supported)
 207                         BIO_printf(out, "%*s<Parse Error>", indent, "");
 208                 else
 209                         BIO_printf(out, "%*s<Not Supported>", indent, "");
 210                 return 1;
 211
 212                 case X509V3_EXT_PARSE_UNKNOWN:
 213                         return ASN1_parse_dump(out,
 214                                 ext->value->data, ext->value->length, indent, -1);
 215                 case X509V3_EXT_DUMP_UNKNOWN:
 216                         return BIO_dump_indent(out, (char *)ext->value->data, ext->value->length, indent);
 217
 218                 default:
 219                 return 1;
 220         }
 221 }
 222
 223
 224 #ifndef OPENSSL_NO_FP_API
 225 int X509V3_EXT_print_fp(FILE *fp, X509_EXTENSION *ext, int flag, int indent)
 226 {
 227         BIO *bio_tmp;
 228         int ret;
 229         if(!(bio_tmp = BIO_new_fp(fp, BIO_NOCLOSE))) return 0;
 230         ret = X509V3_EXT_print(bio_tmp, ext, flag, indent);
 231         BIO_free(bio_tmp);
 232         return ret;
 233 }
 234 #endif