X-Git-Url: https://git.openssl.org/gitweb/?a=blobdiff_plain;f=crypto%2Fasn1%2Fa_dup.c;h=60d3544365feacd33b59643f66302d48a830800e;hb=cf517a6d3d2548b1a79155df5c384f4a4b3924d6;hp=3202a816d0adae53b3ebd774a3892a352d48d346;hpb=51ca375e7e640c6f1441d74abcda731ef7306d0c;p=openssl.git

diff --git a/crypto/asn1/a_dup.c b/crypto/asn1/a_dup.c
index 3202a816d0..60d3544365 100644
--- a/crypto/asn1/a_dup.c
+++ b/crypto/asn1/a_dup.c
@@ -5,21 +5,21 @@
  * This package is an SSL implementation written
  * by Eric Young (eay@cryptsoft.com).
  * The implementation was written so as to conform with Netscapes SSL.
- * 
+ *
  * This library is free for commercial and non-commercial use as long as
  * the following conditions are aheared to.  The following conditions
  * apply to all code found in this distribution, be it the RC4, RSA,
  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  * included with this distribution is covered by the same copyright terms
  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- * 
+ *
  * Copyright remains Eric Young's, and as such any Copyright notices in
  * the code are not to be removed.
  * If this package is used in a product, Eric Young should be given attribution
  * as the author of the parts of the library used.
  * This can be in the form of a textual message at program startup or
  * in documentation (online or textual) provided with the package.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ -34,10 +34,10 @@
  *     Eric Young (eay@cryptsoft.com)"
  *    The word 'cryptographic' can be left out if the rouines from the library
  *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from 
+ * 4. If you include any Windows specific code (or a derivative thereof) from
  *    the apps directory (application code) you must include an acknowledgement:
  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -49,7 +49,7 @@
  * 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.
- * 
+ *
  * The licence and distribution terms for any publically available version or
  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  * copied and put under another distribution licence
@@ -57,27 +57,61 @@
  */
 
 #include <stdio.h>
-#include "cryptlib.h"
-#include <openssl/asn1_mac.h>
+#include "internal/cryptlib.h"
+#include <openssl/asn1.h>
+
+#ifndef NO_OLD_ASN1
 
-#define READ_CHUNK   2048
+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.
+ */
 
-char *ASN1_dup(int (*i2d)(), char *(*d2i)(), char *x)
-	{
-	unsigned char *b,*p;
-	long i;
-	char *ret;
+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);
+    if (x == NULL)
+        return (NULL);
 
-	i=(long)i2d(x,NULL);
-	b=(unsigned char *)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(b);
-	return(ret);
-	}
+    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);
+}