crypto/asn1/tasn_scn.c

   1 /*
   2  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
   3  * 2010.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2010 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 #include <stddef.h>
  60 #include "internal/cryptlib.h"
  61 #include <openssl/asn1.h>
  62 #include <openssl/asn1t.h>
  63 #include <openssl/objects.h>
  64 #include <openssl/buffer.h>
  65 #include <openssl/err.h>
  66 #include <openssl/x509v3.h>
  67 #include "asn1_locl.h"
  68
  69 /*
  70  * General ASN1 structure recursive scanner: iterate through all fields
  71  * passing details to a callback.
  72  */
  73
  74 ASN1_SCTX *ASN1_SCTX_new(int (*scan_cb) (ASN1_SCTX *ctx))
  75 {
  76     ASN1_SCTX *ret;
  77     ret = OPENSSL_malloc(sizeof(*ret));
  78     if (ret == NULL) {
  79         ASN1err(ASN1_F_ASN1_SCTX_NEW, ERR_R_MALLOC_FAILURE);
  80         return NULL;
  81     }
  82     ret->scan_cb = scan_cb;
  83     return ret;
  84 }
  85
  86 void ASN1_SCTX_free(ASN1_SCTX *p)
  87 {
  88     OPENSSL_free(p);
  89 }
  90
  91 const ASN1_ITEM *ASN1_SCTX_get_item(ASN1_SCTX *p)
  92 {
  93     return p->it;
  94 }
  95
  96 const ASN1_TEMPLATE *ASN1_SCTX_get_template(ASN1_SCTX *p)
  97 {
  98     return p->tt;
  99 }
 100
 101 unsigned long ASN1_SCTX_get_flags(ASN1_SCTX *p)
 102 {
 103     return p->flags;
 104 }
 105
 106 void ASN1_SCTX_set_app_data(ASN1_SCTX *p, void *data)
 107 {
 108     p->app_data = data;
 109 }
 110
 111 void *ASN1_SCTX_get_app_data(ASN1_SCTX *p)
 112 {
 113     return p->app_data;
 114 }