1 /* $OpenBSD: p12_utl.c,v 1.19 2022/09/11 17:30:13 tb Exp $ */ 2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 3 * project 1999. 4 */ 5 /* ==================================================================== 6 * Copyright (c) 1999 The OpenSSL Project. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in 17 * the documentation and/or other materials provided with the 18 * distribution. 19 * 20 * 3. All advertising materials mentioning features or use of this 21 * software must display the following acknowledgment: 22 * "This product includes software developed by the OpenSSL Project 23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 24 * 25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 26 * endorse or promote products derived from this software without 27 * prior written permission. For written permission, please contact 28 * licensing@OpenSSL.org. 29 * 30 * 5. Products derived from this software may not be called "OpenSSL" 31 * nor may "OpenSSL" appear in their names without prior written 32 * permission of the OpenSSL Project. 33 * 34 * 6. Redistributions of any form whatsoever must retain the following 35 * acknowledgment: 36 * "This product includes software developed by the OpenSSL Project 37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 38 * 39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 50 * OF THE POSSIBILITY OF SUCH DAMAGE. 51 * ==================================================================== 52 * 53 * This product includes cryptographic software written by Eric Young 54 * (eay@cryptsoft.com). This product includes software written by Tim 55 * Hudson (tjh@cryptsoft.com). 56 * 57 */ 58 59 #include <limits.h> 60 #include <stdio.h> 61 #include <string.h> 62 63 #include <openssl/pkcs12.h> 64 65 #include "pkcs12_local.h" 66 67 /* Cheap and nasty Unicode stuff */ 68 69 unsigned char * 70 OPENSSL_asc2uni(const char *asc, int asclen, unsigned char **uni, int *unilen) 71 { 72 size_t ulen, i; 73 unsigned char *unitmp; 74 75 if (asclen < 0) 76 ulen = strlen(asc); 77 else 78 ulen = (size_t)asclen; 79 ulen++; 80 if (ulen == 0) /* unlikely overflow */ 81 return NULL; 82 if ((unitmp = reallocarray(NULL, ulen, 2)) == NULL) 83 return NULL; 84 ulen *= 2; 85 /* XXX This interface ought to use unsigned types */ 86 if (ulen > INT_MAX) { 87 free(unitmp); 88 return NULL; 89 } 90 for (i = 0; i < ulen - 2; i += 2) { 91 unitmp[i] = 0; 92 unitmp[i + 1] = *asc++; 93 } 94 /* Make result double-NUL terminated */ 95 unitmp[ulen - 2] = 0; 96 unitmp[ulen - 1] = 0; 97 if (unilen) 98 *unilen = ulen; 99 if (uni) 100 *uni = unitmp; 101 return unitmp; 102 } 103 104 char * 105 OPENSSL_uni2asc(const unsigned char *uni, int unilen) 106 { 107 size_t asclen, u16len, i; 108 char *asctmp; 109 110 if (unilen < 0) 111 return NULL; 112 113 asclen = u16len = (size_t)unilen / 2; 114 /* If no terminating NUL, allow for one */ 115 if (unilen == 0 || uni[unilen - 1] != '\0') 116 asclen++; 117 if ((asctmp = malloc(asclen)) == NULL) 118 return NULL; 119 /* Skip first zero byte */ 120 uni++; 121 for (i = 0; i < u16len; i++) { 122 asctmp[i] = *uni; 123 uni += 2; 124 } 125 asctmp[asclen - 1] = '\0'; 126 return asctmp; 127 } 128 129 int 130 i2d_PKCS12_bio(BIO *bp, PKCS12 *p12) 131 { 132 return ASN1_item_i2d_bio(&PKCS12_it, bp, p12); 133 } 134 135 int 136 i2d_PKCS12_fp(FILE *fp, PKCS12 *p12) 137 { 138 return ASN1_item_i2d_fp(&PKCS12_it, fp, p12); 139 } 140 141 PKCS12 * 142 d2i_PKCS12_bio(BIO *bp, PKCS12 **p12) 143 { 144 return ASN1_item_d2i_bio(&PKCS12_it, bp, p12); 145 } 146 147 PKCS12 * 148 d2i_PKCS12_fp(FILE *fp, PKCS12 **p12) 149 { 150 return ASN1_item_d2i_fp(&PKCS12_it, fp, p12); 151 } 152