1 /* $OpenBSD: p12_utl.c,v 1.21 2023/02/16 08:38:17 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 *
OPENSSL_asc2uni(const char * asc,int asclen,unsigned char ** uni,int * unilen)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 LCRYPTO_ALIAS(OPENSSL_asc2uni);
104
105 char *
OPENSSL_uni2asc(const unsigned char * uni,int unilen)106 OPENSSL_uni2asc(const unsigned char *uni, int unilen)
107 {
108 size_t asclen, u16len, i;
109 char *asctmp;
110
111 if (unilen < 0)
112 return NULL;
113
114 asclen = u16len = (size_t)unilen / 2;
115 /* If no terminating NUL, allow for one */
116 if (unilen == 0 || uni[unilen - 1] != '\0')
117 asclen++;
118 if ((asctmp = malloc(asclen)) == NULL)
119 return NULL;
120 /* Skip first zero byte */
121 uni++;
122 for (i = 0; i < u16len; i++) {
123 asctmp[i] = *uni;
124 uni += 2;
125 }
126 asctmp[asclen - 1] = '\0';
127 return asctmp;
128 }
129 LCRYPTO_ALIAS(OPENSSL_uni2asc);
130
131 int
i2d_PKCS12_bio(BIO * bp,PKCS12 * p12)132 i2d_PKCS12_bio(BIO *bp, PKCS12 *p12)
133 {
134 return ASN1_item_i2d_bio(&PKCS12_it, bp, p12);
135 }
136 LCRYPTO_ALIAS(i2d_PKCS12_bio);
137
138 int
i2d_PKCS12_fp(FILE * fp,PKCS12 * p12)139 i2d_PKCS12_fp(FILE *fp, PKCS12 *p12)
140 {
141 return ASN1_item_i2d_fp(&PKCS12_it, fp, p12);
142 }
143 LCRYPTO_ALIAS(i2d_PKCS12_fp);
144
145 PKCS12 *
d2i_PKCS12_bio(BIO * bp,PKCS12 ** p12)146 d2i_PKCS12_bio(BIO *bp, PKCS12 **p12)
147 {
148 return ASN1_item_d2i_bio(&PKCS12_it, bp, p12);
149 }
150 LCRYPTO_ALIAS(d2i_PKCS12_bio);
151
152 PKCS12 *
d2i_PKCS12_fp(FILE * fp,PKCS12 ** p12)153 d2i_PKCS12_fp(FILE *fp, PKCS12 **p12)
154 {
155 return ASN1_item_d2i_fp(&PKCS12_it, fp, p12);
156 }
157 LCRYPTO_ALIAS(d2i_PKCS12_fp);
158