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 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 if (o == NULL) return(NULL);
73 if (!(o->flags & ASN1_OBJECT_FLAG_DYNAMIC))
74 return((ASN1_OBJECT *)o); /* XXX: ugh! Why? What kind of
75 duplication is this??? */
76
77 r=ASN1_OBJECT_new();
78 if (r == NULL)
79 {
80 OBJerr(OBJ_F_OBJ_DUP,ERR_R_ASN1_LIB);
81 return(NULL);
82 }
83 data=OPENSSL_malloc(o->length);
84 if (data == NULL)
85 goto err;
86 if (o->data != NULL)
87 memcpy(data,o->data,o->length);
88 /* once data attached to object it remains const */
89 r->data = data;
90 r->length=o->length;
91 r->nid=o->nid;
92 r->ln=r->sn=NULL;
93 if (o->ln != NULL)
94 {
95 i=strlen(o->ln)+1;
96 ln=OPENSSL_malloc(i);
97 if (ln == NULL) goto err;
98 memcpy(ln,o->ln,i);
99 r->ln=ln;
100 }
101
102 if (o->sn != NULL)
103 {
104 i=strlen(o->sn)+1;
105 sn=OPENSSL_malloc(i);
106 if (sn == NULL) goto err;
107 memcpy(sn,o->sn,i);
108 r->sn=sn;
109 }
110 r->flags=o->flags|(ASN1_OBJECT_FLAG_DYNAMIC|
111 ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|ASN1_OBJECT_FLAG_DYNAMIC_DATA);
112 return(r);
113 err:
114 OBJerr(OBJ_F_OBJ_DUP,ERR_R_MALLOC_FAILURE);
115 if (ln != NULL) OPENSSL_free(ln);
116 if (sn != NULL) OPENSSL_free(sn);
117 if (data != NULL) OPENSSL_free(data);
118 if (r != NULL) OPENSSL_free(r);
119 return(NULL);
120 }
121
122 int OBJ_cmp(const ASN1_OBJECT *a, const ASN1_OBJECT *b)
123 {
124 int ret;
125
126 ret=(a->length-b->length);
127 if (ret) return(ret);
128 return(memcmp(a->data,b->data,a->length));
129 }