1 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com) 2 * All rights reserved. 3 * 4 * This package is an SSL implementation written 5 * by Eric Young (eay (at) cryptsoft.com). 6 * The implementation was written so as to conform with Netscapes SSL. 7 * 8 * This library is free for commercial and non-commercial use as long as 9 * the following conditions are aheared to. The following conditions 10 * apply to all code found in this distribution, be it the RC4, RSA, 11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 12 * included with this distribution is covered by the same copyright terms 13 * except that the holder is Tim Hudson (tjh (at) cryptsoft.com). 14 * 15 * Copyright remains Eric Young's, and as such any Copyright notices in 16 * the code are not to be removed. 17 * If this package is used in a product, Eric Young should be given attribution 18 * as the author of the parts of the library used. 19 * This can be in the form of a textual message at program startup or 20 * in documentation (online or textual) provided with the package. 21 * 22 * Redistribution and use in source and binary forms, with or without 23 * modification, are permitted provided that the following conditions 24 * are met: 25 * 1. Redistributions of source code must retain the copyright 26 * notice, this list of conditions and the following disclaimer. 27 * 2. Redistributions in binary form must reproduce the above copyright 28 * notice, this list of conditions and the following disclaimer in the 29 * documentation and/or other materials provided with the distribution. 30 * 3. All advertising materials mentioning features or use of this software 31 * must display the following acknowledgement: 32 * "This product includes cryptographic software written by 33 * Eric Young (eay (at) cryptsoft.com)" 34 * The word 'cryptographic' can be left out if the rouines from the library 35 * being used are not cryptographic related :-). 36 * 4. If you include any Windows specific code (or a derivative thereof) from 37 * the apps directory (application code) you must include an acknowledgement: 38 * "This product includes software written by Tim Hudson (tjh (at) cryptsoft.com)" 39 * 40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 50 * SUCH DAMAGE. 51 * 52 * The licence and distribution terms for any publically available version or 53 * derivative of this code cannot be changed. i.e. this code cannot simply be 54 * copied and put under another distribution licence 55 * [including the GNU Public Licence.] */ 56 57 #include <openssl/asn1.h> 58 59 #include <openssl/err.h> 60 #include <openssl/mem.h> 61 62 63 void *ASN1_dup(i2d_of_void *i2d, d2i_of_void *d2i, void *x) 64 { 65 unsigned char *b,*p; 66 const unsigned char *p2; 67 int i; 68 char *ret; 69 70 if (x == NULL) return(NULL); 71 72 i=i2d(x,NULL); 73 b=OPENSSL_malloc(i+10); 74 if (b == NULL) 75 { OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE); return(NULL); } 76 p= b; 77 i=i2d(x,&p); 78 p2= b; 79 ret=d2i(NULL,&p2,i); 80 OPENSSL_free(b); 81 return(ret); 82 } 83 84 /* ASN1_ITEM version of dup: this follows the model above except we don't need 85 * to allocate the buffer. At some point this could be rewritten to directly dup 86 * the underlying structure instead of doing and encode and decode. */ 87 void *ASN1_item_dup(const ASN1_ITEM *it, void *x) 88 { 89 unsigned char *b = NULL; 90 const unsigned char *p; 91 long i; 92 void *ret; 93 94 if (x == NULL) return(NULL); 95 96 i=ASN1_item_i2d(x,&b,it); 97 if (b == NULL) 98 { OPENSSL_PUT_ERROR(ASN1, ERR_R_MALLOC_FAILURE); return(NULL); } 99 p= b; 100 ret=ASN1_item_d2i(NULL,&p,i, it); 101 OPENSSL_free(b); 102 return(ret); 103 } 104
