1 files changed, 29 insertions, 8 deletions

diff --git a/src/lib/libcrypto/asn1/a_dup.c b/src/lib/libcrypto/asn1/a_dup.c
index 961b4cb069..58a017884c 100644
--- a/src/lib/libcrypto/asn1/a_dup.c
+++ b/src/lib/libcrypto/asn1/a_dup.c
@@ -58,14 +58,11 @@
 
 #include <stdio.h>
 #include "cryptlib.h"
-#include "asn1_mac.h"
+#include <openssl/asn1.h>
 
-#define READ_CHUNK   2048
+#ifndef NO_OLD_ASN1
 
-char *ASN1_dup(i2d,d2i,x)
-int (*i2d)();
-char *(*d2i)();
-char *x;
+char *ASN1_dup(int (*i2d)(), char *(*d2i)(), char *x)
         {
         unsigned char *b,*p;
         long i;
@@ -74,13 +71,37 @@ char *x;
         if (x == NULL) return(NULL);
 
         i=(long)i2d(x,NULL);
-        b=(unsigned char *)Malloc((unsigned int)i+10);
+        b=(unsigned char *)OPENSSL_malloc((unsigned int)i+10);
         if (b == NULL)
                 { ASN1err(ASN1_F_ASN1_DUP,ERR_R_MALLOC_FAILURE); return(NULL); }
         p= b;
         i=i2d(x,&p);
         p= b;
         ret=d2i(NULL,&p,i);
-        Free((char *)b);
+        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, *p;
+        long i;
+        void *ret;
+
+        if (x == NULL) return(NULL);
+
+        i=ASN1_item_i2d(x,&b,it);
+        if (b == NULL)
+                { ASN1err(ASN1_F_ASN1_DUP,ERR_R_MALLOC_FAILURE); return(NULL); }
+        p= b;
+        ret=ASN1_item_d2i(NULL,&p,i, it);
+        OPENSSL_free(b);
         return(ret);
         }