1 /* crypto/asn1/a_bool.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/asn1t.h>
62
63 int i2d_ASN1_BOOLEAN(int a, unsigned char **pp)
64 {
65 int r;
66 unsigned char *p;
67
68 r=ASN1_object_size(0,1,V_ASN1_BOOLEAN);
69 if (pp == NULL) return(r);
70 p= *pp;
71
72 ASN1_put_object(&p,0,1,V_ASN1_BOOLEAN,V_ASN1_UNIVERSAL);
73 *(p++)= (unsigned char)a;
74 *pp=p;
75 return(r);
76 }
77
78 int d2i_ASN1_BOOLEAN(int *a, const unsigned char **pp, long length)
79 {
80 int ret= -1;
81 const unsigned char *p;
82 long len;
83 int inf,tag,xclass;
84 int i=0;
85
86 p= *pp;
87 inf=ASN1_get_object(&p,&len,&tag,&xclass,length);
88 if (inf & 0x80)
89 {
90 i=ASN1_R_BAD_OBJECT_HEADER;
91 goto err;
92 }
93
94 if (tag != V_ASN1_BOOLEAN)
95 {
96 i=ASN1_R_EXPECTING_A_BOOLEAN;
97 goto err;
98 }
99
100 if (len != 1)
101 {
102 i=ASN1_R_BOOLEAN_IS_WRONG_LENGTH;
103 goto err;
104 }
105 ret= (int)*(p++);
106 if (a != NULL) (*a)=ret;
107 *pp=p;
108 return(ret);
109 err:
110 ASN1err(ASN1_F_D2I_ASN1_BOOLEAN,i);
111 return(ret);
112 }
113
114