1 /* $OpenBSD: asn1_old.c,v 1.6 2024/04/10 14:55:12 beck 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_local.h" 67 68 #ifndef NO_OLD_ASN1 69 70 void * 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 LCRYPTO_ALIAS(ASN1_dup); 95 96 void * 97 ASN1_d2i_fp(void *(*xnew)(void), d2i_of_void *d2i, FILE *in, void **x) 98 { 99 BIO *b; 100 void *ret; 101 102 if ((b = BIO_new(BIO_s_file())) == NULL) { 103 ASN1error(ERR_R_BUF_LIB); 104 return (NULL); 105 } 106 BIO_set_fp(b, in, BIO_NOCLOSE); 107 ret = ASN1_d2i_bio(xnew, d2i, b, x); 108 BIO_free(b); 109 return (ret); 110 } 111 LCRYPTO_ALIAS(ASN1_d2i_fp); 112 113 void * 114 ASN1_d2i_bio(void *(*xnew)(void), d2i_of_void *d2i, BIO *in, void **x) 115 { 116 BUF_MEM *b = NULL; 117 const unsigned char *p; 118 void *ret = NULL; 119 int len; 120 121 len = asn1_d2i_read_bio(in, &b); 122 if (len < 0) 123 goto err; 124 125 p = (unsigned char *)b->data; 126 ret = d2i(x, &p, len); 127 128 err: 129 if (b != NULL) 130 BUF_MEM_free(b); 131 return (ret); 132 } 133 LCRYPTO_ALIAS(ASN1_d2i_bio); 134 135 int 136 ASN1_i2d_fp(i2d_of_void *i2d, FILE *out, void *x) 137 { 138 BIO *b; 139 int ret; 140 141 if ((b = BIO_new(BIO_s_file())) == NULL) { 142 ASN1error(ERR_R_BUF_LIB); 143 return (0); 144 } 145 BIO_set_fp(b, out, BIO_NOCLOSE); 146 ret = ASN1_i2d_bio(i2d, b, x); 147 BIO_free(b); 148 return (ret); 149 } 150 LCRYPTO_ALIAS(ASN1_i2d_fp); 151 152 int 153 ASN1_i2d_bio(i2d_of_void *i2d, BIO *out, unsigned char *x) 154 { 155 char *b; 156 unsigned char *p; 157 int i, j = 0, n, ret = 1; 158 159 n = i2d(x, NULL); 160 b = malloc(n); 161 if (b == NULL) { 162 ASN1error(ERR_R_MALLOC_FAILURE); 163 return (0); 164 } 165 166 p = (unsigned char *)b; 167 i2d(x, &p); 168 169 for (;;) { 170 i = BIO_write(out, &(b[j]), n); 171 if (i == n) 172 break; 173 if (i <= 0) { 174 ret = 0; 175 break; 176 } 177 j += i; 178 n -= i; 179 } 180 free(b); 181 return (ret); 182 } 183 LCRYPTO_ALIAS(ASN1_i2d_bio); 184 185 #endif 186