1 /* $OpenBSD: p12_utl.c,v 1.16 2018/05/30 15:32:11 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 /* Cheap and nasty Unicode stuff */ 66 67 unsigned char * 68 OPENSSL_asc2uni(const char *asc, int asclen, unsigned char **uni, int *unilen) 69 { 70 size_t ulen, i; 71 unsigned char *unitmp; 72 73 if (asclen < 0) 74 ulen = strlen(asc); 75 else 76 ulen = (size_t)asclen; 77 ulen++; 78 if (ulen == 0) /* unlikely overflow */ 79 return NULL; 80 if ((unitmp = reallocarray(NULL, ulen, 2)) == NULL) 81 return NULL; 82 ulen *= 2; 83 /* XXX This interface ought to use unsigned types */ 84 if (ulen > INT_MAX) { 85 free(unitmp); 86 return NULL; 87 } 88 for (i = 0; i < ulen - 2; i += 2) { 89 unitmp[i] = 0; 90 unitmp[i + 1] = *asc++; 91 } 92 /* Make result double-NUL terminated */ 93 unitmp[ulen - 2] = 0; 94 unitmp[ulen - 1] = 0; 95 if (unilen) 96 *unilen = ulen; 97 if (uni) 98 *uni = unitmp; 99 return unitmp; 100 } 101 102 char * 103 OPENSSL_uni2asc(const unsigned char *uni, int unilen) 104 { 105 size_t asclen, u16len, i; 106 char *asctmp; 107 108 if (unilen < 0) 109 return NULL; 110 111 asclen = u16len = (size_t)unilen / 2; 112 /* If no terminating NUL, allow for one */ 113 if (unilen == 0 || uni[unilen - 1] != '\0') 114 asclen++; 115 if ((asctmp = malloc(asclen)) == NULL) 116 return NULL; 117 /* Skip first zero byte */ 118 uni++; 119 for (i = 0; i < u16len; i++) { 120 asctmp[i] = *uni; 121 uni += 2; 122 } 123 asctmp[asclen - 1] = '\0'; 124 return asctmp; 125 } 126 127 int 128 i2d_PKCS12_bio(BIO *bp, PKCS12 *p12) 129 { 130 return ASN1_item_i2d_bio(&PKCS12_it, bp, p12); 131 } 132 133 int 134 i2d_PKCS12_fp(FILE *fp, PKCS12 *p12) 135 { 136 return ASN1_item_i2d_fp(&PKCS12_it, fp, p12); 137 } 138 139 PKCS12 * 140 d2i_PKCS12_bio(BIO *bp, PKCS12 **p12) 141 { 142 return ASN1_item_d2i_bio(&PKCS12_it, bp, p12); 143 } 144 145 PKCS12 * 146 d2i_PKCS12_fp(FILE *fp, PKCS12 **p12) 147 { 148 return ASN1_item_d2i_fp(&PKCS12_it, fp, p12); 149 } 150 151 PKCS12_SAFEBAG * 152 PKCS12_x5092certbag(X509 *x509) 153 { 154 return PKCS12_item_pack_safebag(x509, &X509_it, 155 NID_x509Certificate, NID_certBag); 156 } 157 158 PKCS12_SAFEBAG * 159 PKCS12_x509crl2certbag(X509_CRL *crl) 160 { 161 return PKCS12_item_pack_safebag(crl, &X509_CRL_it, 162 NID_x509Crl, NID_crlBag); 163 } 164 165 X509 * 166 PKCS12_certbag2x509(PKCS12_SAFEBAG *bag) 167 { 168 if (OBJ_obj2nid(bag->type) != NID_certBag) 169 return NULL; 170 if (OBJ_obj2nid(bag->value.bag->type) != NID_x509Certificate) 171 return NULL; 172 return ASN1_item_unpack(bag->value.bag->value.octet, 173 &X509_it); 174 } 175 176 X509_CRL * 177 PKCS12_certbag2x509crl(PKCS12_SAFEBAG *bag) 178 { 179 if (OBJ_obj2nid(bag->type) != NID_crlBag) 180 return NULL; 181 if (OBJ_obj2nid(bag->value.bag->type) != NID_x509Crl) 182 return NULL; 183 return ASN1_item_unpack(bag->value.bag->value.octet, 184 &X509_CRL_it); 185 } 186