Commit f86c5c9a authored by Dr. Stephen Henson's avatar Dr. Stephen Henson
Browse files

ASN1_ITEM version of ASN1_dup(). Might want 

something more efficient later...
parent 66a0def8

crypto/asn1/a_dup.c

+25 −1
Original line number Diff line number Diff line
@@ -60,7 +60,7 @@ 
#include "cryptlib.h"

#include <openssl/asn1.h>



#define READ_CHUNK   2048

#ifndef NO_OLD_ASN1



char *ASN1_dup(int (*i2d)(), char *(*d2i)(), char *x)

	{
@@ -81,3 +81,27 @@ char *ASN1_dup(int (*i2d)(), char *(*d2i)(), char *x) 
	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);

	}

crypto/asn1/asn1.h

+2 −0
Original line number Diff line number Diff line
@@ -801,6 +801,8 @@ int ASN1_object_size(int constructed, int length, int tag); 
/* Used to implement other functions */

char *ASN1_dup(int (*i2d)(),char *(*d2i)(),char *x);



void *ASN1_item_dup(const ASN1_ITEM *it, void *x);



#ifndef NO_FP_API

char *ASN1_d2i_fp(char *(*xnew)(),char *(*d2i)(),FILE *fp,unsigned char **x);

int ASN1_i2d_fp(int (*i2d)(),FILE *out,unsigned char *x);