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d02b48c6 | 1 | /* crypto/asn1/a_dup.c */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
3 | * All rights reserved. |
4 | * | |
5 | * This package is an SSL implementation written | |
6 | * by Eric Young (eay@cryptsoft.com). | |
7 | * The implementation was written so as to conform with Netscapes SSL. | |
0f113f3e | 8 | * |
d02b48c6 RE |
9 | * This library is free for commercial and non-commercial use as long as |
10 | * the following conditions are aheared to. The following conditions | |
11 | * apply to all code found in this distribution, be it the RC4, RSA, | |
12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
13 | * included with this distribution is covered by the same copyright terms | |
14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
0f113f3e | 15 | * |
d02b48c6 RE |
16 | * Copyright remains Eric Young's, and as such any Copyright notices in |
17 | * the code are not to be removed. | |
18 | * If this package is used in a product, Eric Young should be given attribution | |
19 | * as the author of the parts of the library used. | |
20 | * This can be in the form of a textual message at program startup or | |
21 | * in documentation (online or textual) provided with the package. | |
0f113f3e | 22 | * |
d02b48c6 RE |
23 | * Redistribution and use in source and binary forms, with or without |
24 | * modification, are permitted provided that the following conditions | |
25 | * are met: | |
26 | * 1. Redistributions of source code must retain the copyright | |
27 | * notice, this list of conditions and the following disclaimer. | |
28 | * 2. Redistributions in binary form must reproduce the above copyright | |
29 | * notice, this list of conditions and the following disclaimer in the | |
30 | * documentation and/or other materials provided with the distribution. | |
31 | * 3. All advertising materials mentioning features or use of this software | |
32 | * must display the following acknowledgement: | |
33 | * "This product includes cryptographic software written by | |
34 | * Eric Young (eay@cryptsoft.com)" | |
35 | * The word 'cryptographic' can be left out if the rouines from the library | |
36 | * being used are not cryptographic related :-). | |
0f113f3e | 37 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d02b48c6 RE |
38 | * the apps directory (application code) you must include an acknowledgement: |
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
0f113f3e | 40 | * |
d02b48c6 RE |
41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
51 | * SUCH DAMAGE. | |
0f113f3e | 52 | * |
d02b48c6 RE |
53 | * The licence and distribution terms for any publically available version or |
54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
55 | * copied and put under another distribution licence | |
56 | * [including the GNU Public Licence.] | |
57 | */ | |
58 | ||
59 | #include <stdio.h> | |
b39fc560 | 60 | #include "internal/cryptlib.h" |
9d6b1ce6 | 61 | #include <openssl/asn1.h> |
d02b48c6 | 62 | |
f86c5c9a | 63 | #ifndef NO_OLD_ASN1 |
d02b48c6 | 64 | |
f4274da1 | 65 | void *ASN1_dup(i2d_of_void *i2d, d2i_of_void *d2i, void *x) |
0f113f3e MC |
66 | { |
67 | unsigned char *b, *p; | |
68 | const unsigned char *p2; | |
69 | int i; | |
70 | char *ret; | |
d02b48c6 | 71 | |
0f113f3e MC |
72 | if (x == NULL) |
73 | return (NULL); | |
d02b48c6 | 74 | |
0f113f3e MC |
75 | i = i2d(x, NULL); |
76 | b = OPENSSL_malloc(i + 10); | |
77 | if (b == NULL) { | |
78 | ASN1err(ASN1_F_ASN1_DUP, ERR_R_MALLOC_FAILURE); | |
79 | return (NULL); | |
80 | } | |
81 | p = b; | |
82 | i = i2d(x, &p); | |
83 | p2 = b; | |
84 | ret = d2i(NULL, &p2, i); | |
85 | OPENSSL_free(b); | |
86 | return (ret); | |
87 | } | |
f86c5c9a DSH |
88 | |
89 | #endif | |
90 | ||
0f113f3e MC |
91 | /* |
92 | * ASN1_ITEM version of dup: this follows the model above except we don't | |
93 | * need to allocate the buffer. At some point this could be rewritten to | |
94 | * directly dup the underlying structure instead of doing and encode and | |
95 | * decode. | |
f86c5c9a DSH |
96 | */ |
97 | ||
98 | void *ASN1_item_dup(const ASN1_ITEM *it, void *x) | |
0f113f3e MC |
99 | { |
100 | unsigned char *b = NULL; | |
101 | const unsigned char *p; | |
102 | long i; | |
103 | void *ret; | |
f86c5c9a | 104 | |
0f113f3e MC |
105 | if (x == NULL) |
106 | return (NULL); | |
f86c5c9a | 107 | |
0f113f3e MC |
108 | i = ASN1_item_i2d(x, &b, it); |
109 | if (b == NULL) { | |
110 | ASN1err(ASN1_F_ASN1_ITEM_DUP, ERR_R_MALLOC_FAILURE); | |
111 | return (NULL); | |
112 | } | |
113 | p = b; | |
114 | ret = ASN1_item_d2i(NULL, &p, i, it); | |
115 | OPENSSL_free(b); | |
116 | return (ret); | |
117 | } |