crypto/asn1/tasn_scn.c

   1 /*
   2  * Copyright 2010-2016 The OpenSSL Project Authors. All Rights Reserved.
   3  *
   4  * Licensed under the Apache License 2.0 (the "License").  You may not use
   5  * this file except in compliance with the License.  You can obtain a copy
   6  * in the file LICENSE in the source distribution or at
   7  * https://www.openssl.org/source/license.html
   8  */
   9
  10 #include <stddef.h>
  11 #include "internal/cryptlib.h"
  12 #include <openssl/asn1.h>
  13 #include <openssl/asn1t.h>
  14 #include <openssl/objects.h>
  15 #include <openssl/buffer.h>
  16 #include <openssl/err.h>
  17 #include <openssl/x509v3.h>
  18 #include "asn1_local.h"
  19
  20 /*
  21  * General ASN1 structure recursive scanner: iterate through all fields
  22  * passing details to a callback.
  23  */
  24
  25 ASN1_SCTX *ASN1_SCTX_new(int (*scan_cb) (ASN1_SCTX *ctx))
  26 {
  27     ASN1_SCTX *ret = OPENSSL_zalloc(sizeof(*ret));
  28
  29     if (ret == NULL) {
  30         ASN1err(ASN1_F_ASN1_SCTX_NEW, ERR_R_MALLOC_FAILURE);
  31         return NULL;
  32     }
  33     ret->scan_cb = scan_cb;
  34     return ret;
  35 }
  36
  37 void ASN1_SCTX_free(ASN1_SCTX *p)
  38 {
  39     OPENSSL_free(p);
  40 }
  41
  42 const ASN1_ITEM *ASN1_SCTX_get_item(ASN1_SCTX *p)
  43 {
  44     return p->it;
  45 }
  46
  47 const ASN1_TEMPLATE *ASN1_SCTX_get_template(ASN1_SCTX *p)
  48 {
  49     return p->tt;
  50 }
  51
  52 unsigned long ASN1_SCTX_get_flags(ASN1_SCTX *p)
  53 {
  54     return p->flags;
  55 }
  56
  57 void ASN1_SCTX_set_app_data(ASN1_SCTX *p, void *data)
  58 {
  59     p->app_data = data;
  60 }
  61
  62 void *ASN1_SCTX_get_app_data(ASN1_SCTX *p)
  63 {
  64     return p->app_data;
  65 }