Add ASN1_ITEM lookup and enumerate functions.

Reviewed-by: Rich Salz <rsalz@openssl.org>

1 files changed, 40 insertions, 0 deletions

diff --git a/crypto/asn1/asn1_item_list.c b/crypto/asn1/asn1_item_list.c
new file mode 100644
index 0000000000..eaeb34fcc9
--- /dev/null
+++ b/crypto/asn1/asn1_item_list.c
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2000-2016 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 <stdio.h>
+#include "internal/cryptlib.h"
+#include <openssl/asn1.h>
+#include <openssl/asn1t.h>
+#include <openssl/cms.h>
+#include <openssl/ocsp.h>
+#include <openssl/pkcs7.h>
+#include <openssl/pkcs12.h>
+#include <openssl/x509v3.h>
+
+#include "asn1_item_list.h"
+
+const ASN1_ITEM *ASN1_ITEM_lookup(const char *name)
+{
+    size_t i;
+
+    for (i = 0; i < OSSL_NELEM(asn1_item_list); i++) {
+        const ASN1_ITEM *it = ASN1_ITEM_ptr(asn1_item_list[i]);
+
+        if (strcmp(it->sname, name) == 0)
+            return it;
+    }
+    return NULL;
+}
+
+const ASN1_ITEM *ASN1_ITEM_get(size_t i)
+{
+    if (i >= OSSL_NELEM(asn1_item_list))
+        return NULL;
+    return ASN1_ITEM_ptr(asn1_item_list[i]);
+}