a_bool.c revision 296341
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 63int 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) 70 return (r); 71 p = *pp; 72 73 ASN1_put_object(&p, 0, 1, V_ASN1_BOOLEAN, V_ASN1_UNIVERSAL); 74 *(p++) = (unsigned char)a; 75 *pp = p; 76 return (r); 77} 78 79int d2i_ASN1_BOOLEAN(int *a, const unsigned char **pp, long length) 80{ 81 int ret = -1; 82 const unsigned char *p; 83 long len; 84 int inf, tag, xclass; 85 int i = 0; 86 87 p = *pp; 88 inf = ASN1_get_object(&p, &len, &tag, &xclass, length); 89 if (inf & 0x80) { 90 i = ASN1_R_BAD_OBJECT_HEADER; 91 goto err; 92 } 93 94 if (tag != V_ASN1_BOOLEAN) { 95 i = ASN1_R_EXPECTING_A_BOOLEAN; 96 goto err; 97 } 98 99 if (len != 1) { 100 i = ASN1_R_BOOLEAN_IS_WRONG_LENGTH; 101 goto err; 102 } 103 ret = (int)*(p++); 104 if (a != NULL) 105 (*a) = ret; 106 *pp = p; 107 return (ret); 108 err: 109 ASN1err(ASN1_F_D2I_ASN1_BOOLEAN, i); 110 return (ret); 111} 112