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 * 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 * 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 * 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 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 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