crypto/asn1/tasn_scn.c

   1 /* tasn_scn.c */
   2 /*
   3  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
   4  * 2010.
   5  */
   6 /* ====================================================================
   7  * Copyright (c) 2010 The OpenSSL Project.  All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  *
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  *
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in
  18  *    the documentation and/or other materials provided with the
  19  *    distribution.
  20  *
  21  * 3. All advertising materials mentioning features or use of this
  22  *    software must display the following acknowledgment:
  23  *    "This product includes software developed by the OpenSSL Project
  24  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  25  *
  26  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  27  *    endorse or promote products derived from this software without
  28  *    prior written permission. For written permission, please contact
  29  *    licensing@OpenSSL.org.
  30  *
  31  * 5. Products derived from this software may not be called "OpenSSL"
  32  *    nor may "OpenSSL" appear in their names without prior written
  33  *    permission of the OpenSSL Project.
  34  *
  35  * 6. Redistributions of any form whatsoever must retain the following
  36  *    acknowledgment:
  37  *    "This product includes software developed by the OpenSSL Project
  38  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  41  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  43  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  44  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  45  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  46  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  47  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  49  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  50  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  51  * OF THE POSSIBILITY OF SUCH DAMAGE.
  52  * ====================================================================
  53  *
  54  * This product includes cryptographic software written by Eric Young
  55  * (eay@cryptsoft.com).  This product includes software written by Tim
  56  * Hudson (tjh@cryptsoft.com).
  57  *
  58  */
  59
  60 #include <stddef.h>
  61 #include "internal/cryptlib.h"
  62 #include <openssl/asn1.h>
  63 #include <openssl/asn1t.h>
  64 #include <openssl/objects.h>
  65 #include <openssl/buffer.h>
  66 #include <openssl/err.h>
  67 #include <openssl/x509v3.h>
  68 #include "asn1_locl.h"
  69
  70 /*
  71  * General ASN1 structure recursive scanner: iterate through all fields
  72  * passing details to a callback.
  73  */
  74
  75 ASN1_SCTX *ASN1_SCTX_new(int (*scan_cb) (ASN1_SCTX *ctx))
  76 {
  77     ASN1_SCTX *ret;
  78     ret = OPENSSL_malloc(sizeof(*ret));
  79     if (ret == NULL) {
  80         ASN1err(ASN1_F_ASN1_SCTX_NEW, ERR_R_MALLOC_FAILURE);
  81         return NULL;
  82     }
  83     ret->scan_cb = scan_cb;
  84     return ret;
  85 }
  86
  87 void ASN1_SCTX_free(ASN1_SCTX *p)
  88 {
  89     OPENSSL_free(p);
  90 }
  91
  92 const ASN1_ITEM *ASN1_SCTX_get_item(ASN1_SCTX *p)
  93 {
  94     return p->it;
  95 }
  96
  97 const ASN1_TEMPLATE *ASN1_SCTX_get_template(ASN1_SCTX *p)
  98 {
  99     return p->tt;
 100 }
 101
 102 unsigned long ASN1_SCTX_get_flags(ASN1_SCTX *p)
 103 {
 104     return p->flags;
 105 }
 106
 107 void ASN1_SCTX_set_app_data(ASN1_SCTX *p, void *data)
 108 {
 109     p->app_data = data;
 110 }
 111
 112 void *ASN1_SCTX_get_app_data(ASN1_SCTX *p)
 113 {
 114     return p->app_data;
 115 }