Line data Source code
1 : /* crypto/objects/obj_lib.c */
2 : /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
8 : *
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).
15 : *
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.
22 : *
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 :-).
37 : * 4. If you include any Windows specific code (or a derivative thereof) from
38 : * the apps directory (application code) you must include an acknowledgement:
39 : * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 : *
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.
52 : *
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>
60 : #include "cryptlib.h"
61 : #include <openssl/lhash.h>
62 : #include <openssl/objects.h>
63 : #include <openssl/buffer.h>
64 :
65 14692 : ASN1_OBJECT *OBJ_dup(const ASN1_OBJECT *o)
66 : {
67 : ASN1_OBJECT *r;
68 : int i;
69 : char *ln = NULL, *sn = NULL;
70 : unsigned char *data = NULL;
71 :
72 14692 : if (o == NULL)
73 : return (NULL);
74 14692 : if (!(o->flags & ASN1_OBJECT_FLAG_DYNAMIC))
75 : return ((ASN1_OBJECT *)o); /* XXX: ugh! Why? What kind of duplication
76 : * is this??? */
77 :
78 14692 : r = ASN1_OBJECT_new();
79 14692 : if (r == NULL) {
80 0 : OBJerr(OBJ_F_OBJ_DUP, ERR_R_ASN1_LIB);
81 0 : return (NULL);
82 : }
83 14692 : data = OPENSSL_malloc(o->length);
84 14692 : if (data == NULL)
85 : goto err;
86 14692 : if (o->data != NULL)
87 14692 : memcpy(data, o->data, o->length);
88 : /* once data attached to object it remains const */
89 14692 : r->data = data;
90 14692 : r->length = o->length;
91 14692 : r->nid = o->nid;
92 14692 : r->ln = r->sn = NULL;
93 14692 : if (o->ln != NULL) {
94 0 : i = strlen(o->ln) + 1;
95 0 : ln = OPENSSL_malloc(i);
96 0 : if (ln == NULL)
97 : goto err;
98 0 : memcpy(ln, o->ln, i);
99 0 : r->ln = ln;
100 : }
101 :
102 14692 : if (o->sn != NULL) {
103 0 : i = strlen(o->sn) + 1;
104 0 : sn = OPENSSL_malloc(i);
105 0 : if (sn == NULL)
106 : goto err;
107 0 : memcpy(sn, o->sn, i);
108 0 : r->sn = sn;
109 : }
110 14692 : r->flags = o->flags | (ASN1_OBJECT_FLAG_DYNAMIC |
111 : ASN1_OBJECT_FLAG_DYNAMIC_STRINGS |
112 : ASN1_OBJECT_FLAG_DYNAMIC_DATA);
113 14692 : return (r);
114 : err:
115 0 : OBJerr(OBJ_F_OBJ_DUP, ERR_R_MALLOC_FAILURE);
116 0 : if (ln != NULL)
117 0 : OPENSSL_free(ln);
118 0 : if (sn != NULL)
119 0 : OPENSSL_free(sn);
120 0 : if (data != NULL)
121 0 : OPENSSL_free(data);
122 0 : if (r != NULL)
123 0 : OPENSSL_free(r);
124 : return (NULL);
125 : }
126 :
127 4385 : int OBJ_cmp(const ASN1_OBJECT *a, const ASN1_OBJECT *b)
128 : {
129 : int ret;
130 :
131 4385 : ret = (a->length - b->length);
132 4385 : if (ret)
133 : return (ret);
134 4385 : return (memcmp(a->data, b->data, a->length));
135 : }
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