155714Skris/* crypto/asn1/a_dup.c */ 255714Skris/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 355714Skris * All rights reserved. 455714Skris * 555714Skris * This package is an SSL implementation written 655714Skris * by Eric Young (eay@cryptsoft.com). 755714Skris * The implementation was written so as to conform with Netscapes SSL. 855714Skris * 955714Skris * This library is free for commercial and non-commercial use as long as 1055714Skris * the following conditions are aheared to. The following conditions 1155714Skris * apply to all code found in this distribution, be it the RC4, RSA, 1255714Skris * lhash, DES, etc., code; not just the SSL code. The SSL documentation 1355714Skris * included with this distribution is covered by the same copyright terms 1455714Skris * except that the holder is Tim Hudson (tjh@cryptsoft.com). 1555714Skris * 1655714Skris * Copyright remains Eric Young's, and as such any Copyright notices in 1755714Skris * the code are not to be removed. 1855714Skris * If this package is used in a product, Eric Young should be given attribution 1955714Skris * as the author of the parts of the library used. 2055714Skris * This can be in the form of a textual message at program startup or 2155714Skris * in documentation (online or textual) provided with the package. 2255714Skris * 2355714Skris * Redistribution and use in source and binary forms, with or without 2455714Skris * modification, are permitted provided that the following conditions 2555714Skris * are met: 2655714Skris * 1. Redistributions of source code must retain the copyright 2755714Skris * notice, this list of conditions and the following disclaimer. 2855714Skris * 2. Redistributions in binary form must reproduce the above copyright 2955714Skris * notice, this list of conditions and the following disclaimer in the 3055714Skris * documentation and/or other materials provided with the distribution. 3155714Skris * 3. All advertising materials mentioning features or use of this software 3255714Skris * must display the following acknowledgement: 3355714Skris * "This product includes cryptographic software written by 3455714Skris * Eric Young (eay@cryptsoft.com)" 3555714Skris * The word 'cryptographic' can be left out if the rouines from the library 3655714Skris * being used are not cryptographic related :-). 3755714Skris * 4. If you include any Windows specific code (or a derivative thereof) from 3855714Skris * the apps directory (application code) you must include an acknowledgement: 3955714Skris * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 4055714Skris * 4155714Skris * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 4255714Skris * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 4355714Skris * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 4455714Skris * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 4555714Skris * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 4655714Skris * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 4755714Skris * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4855714Skris * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4955714Skris * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 5055714Skris * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 5155714Skris * SUCH DAMAGE. 5255714Skris * 5355714Skris * The licence and distribution terms for any publically available version or 5455714Skris * derivative of this code cannot be changed. i.e. this code cannot simply be 5555714Skris * copied and put under another distribution licence 5655714Skris * [including the GNU Public Licence.] 5755714Skris */ 5855714Skris 5955714Skris#include <stdio.h> 6055714Skris#include "cryptlib.h" 61109998Smarkm#include <openssl/asn1.h> 6255714Skris 63109998Smarkm#ifndef NO_OLD_ASN1 6455714Skris 65238405Sjkimvoid *ASN1_dup(i2d_of_void *i2d, d2i_of_void *d2i, void *x) 6655714Skris { 6755714Skris unsigned char *b,*p; 68160814Ssimon const unsigned char *p2; 69160814Ssimon int i; 7055714Skris char *ret; 7155714Skris 7255714Skris if (x == NULL) return(NULL); 7355714Skris 74160814Ssimon i=i2d(x,NULL); 75160814Ssimon b=OPENSSL_malloc(i+10); 7655714Skris if (b == NULL) 7755714Skris { ASN1err(ASN1_F_ASN1_DUP,ERR_R_MALLOC_FAILURE); return(NULL); } 7855714Skris p= b; 7955714Skris i=i2d(x,&p); 80160814Ssimon p2= b; 81160814Ssimon ret=d2i(NULL,&p2,i); 8268651Skris OPENSSL_free(b); 8355714Skris return(ret); 8455714Skris } 85109998Smarkm 86109998Smarkm#endif 87109998Smarkm 88109998Smarkm/* ASN1_ITEM version of dup: this follows the model above except we don't need 89109998Smarkm * to allocate the buffer. At some point this could be rewritten to directly dup 90109998Smarkm * the underlying structure instead of doing and encode and decode. 91109998Smarkm */ 92109998Smarkm 93109998Smarkmvoid *ASN1_item_dup(const ASN1_ITEM *it, void *x) 94109998Smarkm { 95160814Ssimon unsigned char *b = NULL; 96160814Ssimon const unsigned char *p; 97109998Smarkm long i; 98109998Smarkm void *ret; 99109998Smarkm 100109998Smarkm if (x == NULL) return(NULL); 101109998Smarkm 102109998Smarkm i=ASN1_item_i2d(x,&b,it); 103109998Smarkm if (b == NULL) 104160814Ssimon { ASN1err(ASN1_F_ASN1_ITEM_DUP,ERR_R_MALLOC_FAILURE); return(NULL); } 105109998Smarkm p= b; 106109998Smarkm ret=ASN1_item_d2i(NULL,&p,i, it); 107109998Smarkm OPENSSL_free(b); 108109998Smarkm return(ret); 109109998Smarkm } 110