1 files changed, 68 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/asn1/a_dup.c b/openssl-1.1.0h/crypto/asn1/a_dup.c
new file mode 100644
index 0000000..d9a57b2
--- /dev/null
+++ b/openssl-1.1.0h/crypto/asn1/a_dup.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright 1995-2016 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>
+
+#ifndef NO_OLD_ASN1
+
+void *ASN1_dup(i2d_of_void *i2d, d2i_of_void *d2i, void *x)
+{
+    unsigned char *b, *p;
+    const unsigned char *p2;
+    int i;
+    char *ret;
+
+    if (x == NULL)
+        return (NULL);
+
+    i = i2d(x, NULL);
+    b = OPENSSL_malloc(i + 10);
+    if (b == NULL) {
+        ASN1err(ASN1_F_ASN1_DUP, ERR_R_MALLOC_FAILURE);
+        return (NULL);
+    }
+    p = b;
+    i = i2d(x, &p);
+    p2 = b;
+    ret = d2i(NULL, &p2, i);
+    OPENSSL_free(b);
+    return (ret);
+}
+
+#endif
+
+/*
+ * ASN1_ITEM version of dup: this follows the model above except we don't
+ * need to allocate the buffer. At some point this could be rewritten to
+ * directly dup the underlying structure instead of doing and encode and
+ * decode.
+ */
+
+void *ASN1_item_dup(const ASN1_ITEM *it, void *x)
+{
+    unsigned char *b = NULL;
+    const unsigned char *p;
+    long i;
+    void *ret;
+
+    if (x == NULL)
+        return (NULL);
+
+    i = ASN1_item_i2d(x, &b, it);
+    if (b == NULL) {
+        ASN1err(ASN1_F_ASN1_ITEM_DUP, ERR_R_MALLOC_FAILURE);
+        return (NULL);
+    }
+    p = b;
+    ret = ASN1_item_d2i(NULL, &p, i, it);
+    OPENSSL_free(b);
+    return (ret);
+}