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 /* Print out a name+value stack */
  68
  69 void X509V3_EXT_val_prn(BIO *out, STACK *val, int indent, int ml)
  70 {
  71         int i;
  72         CONF_VALUE *nval;
  73         if(!val) return;
  74         if(!ml) BIO_printf(out, "%*s", indent, "");
  75         for(i = 0; i < sk_num(val); i++) {
  76                 if(ml) BIO_printf(out, "%*s", indent, "");
  77                 else if(i > 0) BIO_printf(out, ", ");
  78                 nval = (CONF_VALUE *)sk_value(val, i);
  79                 if(!nval->name) BIO_printf(out, "%s", nval->value);
  80                 else if(!nval->value) BIO_printf(out, "%s", nval->name);
  81                 else BIO_printf(out, "%s:%s", nval->name, nval->value);
  82                 if(ml) BIO_puts(out, "\n");
  83         }
  84 }
  85
  86 /* Main routine: print out a general extension */
  87
  88 int X509V3_EXT_print(BIO *out, X509_EXTENSION *ext, int flag, int indent)
  89 {
  90         char *ext_str = NULL, *value = NULL;
  91         unsigned char *p;
  92         X509V3_EXT_METHOD *method;
  93         STACK *nval = NULL;
  94         int ok = 1;
  95         if(!(method = X509V3_EXT_get(ext))) return 0;
  96         p = ext->value->data;
  97         if(!(ext_str = method->d2i(NULL, &p, ext->value->length))) return 0;
  98         if(method->i2s) {
  99                 if(!(value = method->i2s(method, ext_str))) {
 100                         ok = 0;
 101                         goto err;
 102                 }
 103                 BIO_printf(out, "%*s%s", indent, "", value);
 104         } else if(method->i2v) {
 105                 if(!(nval = method->i2v(method, ext_str, NULL))) {
 106                         ok = 0;
 107                         goto err;
 108                 }
 109                 X509V3_EXT_val_prn(out, nval, indent,
 110                                  method->ext_flags & X509V3_EXT_MULTILINE);
 111         } else if(method->i2r) {
 112                 if(!method->i2r(method, ext_str, out, indent)) ok = 0;
 113         } else ok = 0;
 114
 115         err:
 116                 sk_pop_free(nval, X509V3_conf_free);
 117                 if(value) Free(value);
 118                 method->ext_free(ext_str);
 119                 return ok;
 120 }
 121
 122 int X509V3_EXT_print_fp(FILE *fp, X509_EXTENSION *ext, int flag, int indent)
 123 {
 124         BIO *bio_tmp;
 125         int ret;
 126         if(!(bio_tmp = BIO_new_fp(fp, BIO_NOCLOSE))) return 0;
 127         ret = X509V3_EXT_print(bio_tmp, ext, flag, indent);
 128         BIO_free(bio_tmp);
 129         return ret;
 130 }