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ASN1_ITEM version of ASN1_dup(). Might want

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something more efficient later...
This commit is contained in:
Dr. Stephen Henson 2000-12-28 22:41:46 +00:00
parent 66a0def81b
commit f86c5c9ac7
2 changed files with 27 additions and 1 deletions
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26
crypto/asn1/a_dup.c
View File

@ -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);
}

2
crypto/asn1/asn1.h
View File

@ -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);