Support routines for ASN1 scanning function, doesn't do much yet.

1 files changed, 117 insertions, 0 deletions

diff --git a/crypto/asn1/tasn_scn.c b/crypto/asn1/tasn_scn.c
new file mode 100644
index 0000000..9729179
--- /dev/null
+++ b/crypto/asn1/tasn_scn.c
@@ -0,0 +1,117 @@
+/* tasn_scn.c */
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project 2010.
+ */
+/* ====================================================================
+ * Copyright (c) 2010 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+
+#include <stddef.h>
+#include "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;
+	ret = OPENSSL_malloc(sizeof(ASN1_SCTX));
+	if (ret == NULL)
+		{
+		ASN1err(ASN1_F_ASN1_PCTX_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;
+	}
+
+