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-rw-r--r--crypto/asn1/tasn_scn.c65
1 files changed, 65 insertions, 0 deletions
diff --git a/crypto/asn1/tasn_scn.c b/crypto/asn1/tasn_scn.c
new file mode 100644
index 000000000000..e1df2cfcae04
--- /dev/null
+++ b/crypto/asn1/tasn_scn.c
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2010-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stddef.h>
+#include "internal/cryptlib.h"
+#include <openssl/asn1.h>
+#include <openssl/asn1t.h>
+#include <openssl/objects.h>
+#include <openssl/buffer.h>
+#include <openssl/err.h>
+#include <openssl/x509v3.h>
+#include "asn1_locl.h"
+
+/*
+ * General ASN1 structure recursive scanner: iterate through all fields
+ * passing details to a callback.
+ */
+
+ASN1_SCTX *ASN1_SCTX_new(int (*scan_cb) (ASN1_SCTX *ctx))
+{
+ ASN1_SCTX *ret = OPENSSL_zalloc(sizeof(*ret));
+
+ if (ret == NULL) {
+ ASN1err(ASN1_F_ASN1_SCTX_NEW, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+ ret->scan_cb = scan_cb;
+ return ret;
+}
+
+void ASN1_SCTX_free(ASN1_SCTX *p)
+{
+ OPENSSL_free(p);
+}
+
+const ASN1_ITEM *ASN1_SCTX_get_item(ASN1_SCTX *p)
+{
+ return p->it;
+}
+
+const ASN1_TEMPLATE *ASN1_SCTX_get_template(ASN1_SCTX *p)
+{
+ return p->tt;
+}
+
+unsigned long ASN1_SCTX_get_flags(ASN1_SCTX *p)
+{
+ return p->flags;
+}
+
+void ASN1_SCTX_set_app_data(ASN1_SCTX *p, void *data)
+{
+ p->app_data = data;
+}
+
+void *ASN1_SCTX_get_app_data(ASN1_SCTX *p)
+{
+ return p->app_data;
+}