1 /* $OpenBSD: asn1_old.c,v 1.2 2021/12/25 13:17:48 jsing Exp $ */
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 <limits.h>
60 #include <stdio.h>
61
62 #include <openssl/asn1.h>
63 #include <openssl/buffer.h>
64 #include <openssl/err.h>
65
66 #include "asn1_locl.h"
67
68 #ifndef NO_OLD_ASN1
69
70 void *
ASN1_dup(i2d_of_void * i2d,d2i_of_void * d2i,void * x)71 ASN1_dup(i2d_of_void *i2d, d2i_of_void *d2i, void *x)
72 {
73 unsigned char *b, *p;
74 const unsigned char *p2;
75 int i;
76 char *ret;
77
78 if (x == NULL)
79 return (NULL);
80
81 i = i2d(x, NULL);
82 b = malloc(i + 10);
83 if (b == NULL) {
84 ASN1error(ERR_R_MALLOC_FAILURE);
85 return (NULL);
86 }
87 p = b;
88 i = i2d(x, &p);
89 p2 = b;
90 ret = d2i(NULL, &p2, i);
91 free(b);
92 return (ret);
93 }
94
95 void *
ASN1_d2i_fp(void * (* xnew)(void),d2i_of_void * d2i,FILE * in,void ** x)96 ASN1_d2i_fp(void *(*xnew)(void), d2i_of_void *d2i, FILE *in, void **x)
97 {
98 BIO *b;
99 void *ret;
100
101 if ((b = BIO_new(BIO_s_file())) == NULL) {
102 ASN1error(ERR_R_BUF_LIB);
103 return (NULL);
104 }
105 BIO_set_fp(b, in, BIO_NOCLOSE);
106 ret = ASN1_d2i_bio(xnew, d2i, b, x);
107 BIO_free(b);
108 return (ret);
109 }
110
111 void *
ASN1_d2i_bio(void * (* xnew)(void),d2i_of_void * d2i,BIO * in,void ** x)112 ASN1_d2i_bio(void *(*xnew)(void), d2i_of_void *d2i, BIO *in, void **x)
113 {
114 BUF_MEM *b = NULL;
115 const unsigned char *p;
116 void *ret = NULL;
117 int len;
118
119 len = asn1_d2i_read_bio(in, &b);
120 if (len < 0)
121 goto err;
122
123 p = (unsigned char *)b->data;
124 ret = d2i(x, &p, len);
125
126 err:
127 if (b != NULL)
128 BUF_MEM_free(b);
129 return (ret);
130 }
131
132 int
ASN1_i2d_fp(i2d_of_void * i2d,FILE * out,void * x)133 ASN1_i2d_fp(i2d_of_void *i2d, FILE *out, void *x)
134 {
135 BIO *b;
136 int ret;
137
138 if ((b = BIO_new(BIO_s_file())) == NULL) {
139 ASN1error(ERR_R_BUF_LIB);
140 return (0);
141 }
142 BIO_set_fp(b, out, BIO_NOCLOSE);
143 ret = ASN1_i2d_bio(i2d, b, x);
144 BIO_free(b);
145 return (ret);
146 }
147
148 int
ASN1_i2d_bio(i2d_of_void * i2d,BIO * out,unsigned char * x)149 ASN1_i2d_bio(i2d_of_void *i2d, BIO *out, unsigned char *x)
150 {
151 char *b;
152 unsigned char *p;
153 int i, j = 0, n, ret = 1;
154
155 n = i2d(x, NULL);
156 b = malloc(n);
157 if (b == NULL) {
158 ASN1error(ERR_R_MALLOC_FAILURE);
159 return (0);
160 }
161
162 p = (unsigned char *)b;
163 i2d(x, &p);
164
165 for (;;) {
166 i = BIO_write(out, &(b[j]), n);
167 if (i == n)
168 break;
169 if (i <= 0) {
170 ret = 0;
171 break;
172 }
173 j += i;
174 n -= i;
175 }
176 free(b);
177 return (ret);
178 }
179
180 #endif
181