remove malloc casts
[openssl.git] / crypto / x509v3 / v3_info.c
1 /* v3_info.c */
2 /*
3  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
4  * 1999.
5  */
6 /* ====================================================================
7  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  *
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in
18  *    the documentation and/or other materials provided with the
19  *    distribution.
20  *
21  * 3. All advertising materials mentioning features or use of this
22  *    software must display the following acknowledgment:
23  *    "This product includes software developed by the OpenSSL Project
24  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25  *
26  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27  *    endorse or promote products derived from this software without
28  *    prior written permission. For written permission, please contact
29  *    licensing@OpenSSL.org.
30  *
31  * 5. Products derived from this software may not be called "OpenSSL"
32  *    nor may "OpenSSL" appear in their names without prior written
33  *    permission of the OpenSSL Project.
34  *
35  * 6. Redistributions of any form whatsoever must retain the following
36  *    acknowledgment:
37  *    "This product includes software developed by the OpenSSL Project
38  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39  *
40  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
44  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51  * OF THE POSSIBILITY OF SUCH DAMAGE.
52  * ====================================================================
53  *
54  * This product includes cryptographic software written by Eric Young
55  * (eay@cryptsoft.com).  This product includes software written by Tim
56  * Hudson (tjh@cryptsoft.com).
57  *
58  */
59
60 #include <stdio.h>
61 #include "cryptlib.h"
62 #include <openssl/conf.h>
63 #include <openssl/asn1.h>
64 #include <openssl/asn1t.h>
65 #include <openssl/x509v3.h>
66
67 static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD
68                                                        *method, AUTHORITY_INFO_ACCESS
69                                                        *ainfo, STACK_OF(CONF_VALUE)
70                                                        *ret);
71 static AUTHORITY_INFO_ACCESS *v2i_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD
72                                                         *method,
73                                                         X509V3_CTX *ctx,
74                                                         STACK_OF(CONF_VALUE)
75                                                         *nval);
76
77 const X509V3_EXT_METHOD v3_info = { NID_info_access, X509V3_EXT_MULTILINE,
78     ASN1_ITEM_ref(AUTHORITY_INFO_ACCESS),
79     0, 0, 0, 0,
80     0, 0,
81     (X509V3_EXT_I2V) i2v_AUTHORITY_INFO_ACCESS,
82     (X509V3_EXT_V2I)v2i_AUTHORITY_INFO_ACCESS,
83     0, 0,
84     NULL
85 };
86
87 const X509V3_EXT_METHOD v3_sinfo = { NID_sinfo_access, X509V3_EXT_MULTILINE,
88     ASN1_ITEM_ref(AUTHORITY_INFO_ACCESS),
89     0, 0, 0, 0,
90     0, 0,
91     (X509V3_EXT_I2V) i2v_AUTHORITY_INFO_ACCESS,
92     (X509V3_EXT_V2I)v2i_AUTHORITY_INFO_ACCESS,
93     0, 0,
94     NULL
95 };
96
97 ASN1_SEQUENCE(ACCESS_DESCRIPTION) = {
98         ASN1_SIMPLE(ACCESS_DESCRIPTION, method, ASN1_OBJECT),
99         ASN1_SIMPLE(ACCESS_DESCRIPTION, location, GENERAL_NAME)
100 } ASN1_SEQUENCE_END(ACCESS_DESCRIPTION)
101
102 IMPLEMENT_ASN1_FUNCTIONS(ACCESS_DESCRIPTION)
103
104 ASN1_ITEM_TEMPLATE(AUTHORITY_INFO_ACCESS) =
105         ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, GeneralNames, ACCESS_DESCRIPTION)
106 ASN1_ITEM_TEMPLATE_END(AUTHORITY_INFO_ACCESS)
107
108 IMPLEMENT_ASN1_FUNCTIONS(AUTHORITY_INFO_ACCESS)
109
110 static STACK_OF(CONF_VALUE) *i2v_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD
111                                                        *method, AUTHORITY_INFO_ACCESS
112                                                        *ainfo, STACK_OF(CONF_VALUE)
113                                                        *ret)
114 {
115     ACCESS_DESCRIPTION *desc;
116     int i, nlen;
117     char objtmp[80], *ntmp;
118     CONF_VALUE *vtmp;
119     for (i = 0; i < sk_ACCESS_DESCRIPTION_num(ainfo); i++) {
120         desc = sk_ACCESS_DESCRIPTION_value(ainfo, i);
121         ret = i2v_GENERAL_NAME(method, desc->location, ret);
122         if (!ret)
123             break;
124         vtmp = sk_CONF_VALUE_value(ret, i);
125         i2t_ASN1_OBJECT(objtmp, sizeof objtmp, desc->method);
126         nlen = strlen(objtmp) + strlen(vtmp->name) + 5;
127         ntmp = OPENSSL_malloc(nlen);
128         if (!ntmp) {
129             X509V3err(X509V3_F_I2V_AUTHORITY_INFO_ACCESS,
130                       ERR_R_MALLOC_FAILURE);
131             return NULL;
132         }
133         BUF_strlcpy(ntmp, objtmp, nlen);
134         BUF_strlcat(ntmp, " - ", nlen);
135         BUF_strlcat(ntmp, vtmp->name, nlen);
136         OPENSSL_free(vtmp->name);
137         vtmp->name = ntmp;
138
139     }
140     if (!ret)
141         return sk_CONF_VALUE_new_null();
142     return ret;
143 }
144
145 static AUTHORITY_INFO_ACCESS *v2i_AUTHORITY_INFO_ACCESS(X509V3_EXT_METHOD
146                                                         *method,
147                                                         X509V3_CTX *ctx,
148                                                         STACK_OF(CONF_VALUE)
149                                                         *nval)
150 {
151     AUTHORITY_INFO_ACCESS *ainfo = NULL;
152     CONF_VALUE *cnf, ctmp;
153     ACCESS_DESCRIPTION *acc;
154     int i, objlen;
155     char *objtmp, *ptmp;
156     if (!(ainfo = sk_ACCESS_DESCRIPTION_new_null())) {
157         X509V3err(X509V3_F_V2I_AUTHORITY_INFO_ACCESS, ERR_R_MALLOC_FAILURE);
158         return NULL;
159     }
160     for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
161         cnf = sk_CONF_VALUE_value(nval, i);
162         if (!(acc = ACCESS_DESCRIPTION_new())
163             || !sk_ACCESS_DESCRIPTION_push(ainfo, acc)) {
164             X509V3err(X509V3_F_V2I_AUTHORITY_INFO_ACCESS,
165                       ERR_R_MALLOC_FAILURE);
166             goto err;
167         }
168         ptmp = strchr(cnf->name, ';');
169         if (!ptmp) {
170             X509V3err(X509V3_F_V2I_AUTHORITY_INFO_ACCESS,
171                       X509V3_R_INVALID_SYNTAX);
172             goto err;
173         }
174         objlen = ptmp - cnf->name;
175         ctmp.name = ptmp + 1;
176         ctmp.value = cnf->value;
177         if (!v2i_GENERAL_NAME_ex(acc->location, method, ctx, &ctmp, 0))
178             goto err;
179         if (!(objtmp = OPENSSL_malloc(objlen + 1))) {
180             X509V3err(X509V3_F_V2I_AUTHORITY_INFO_ACCESS,
181                       ERR_R_MALLOC_FAILURE);
182             goto err;
183         }
184         strncpy(objtmp, cnf->name, objlen);
185         objtmp[objlen] = 0;
186         acc->method = OBJ_txt2obj(objtmp, 0);
187         if (!acc->method) {
188             X509V3err(X509V3_F_V2I_AUTHORITY_INFO_ACCESS,
189                       X509V3_R_BAD_OBJECT);
190             ERR_add_error_data(2, "value=", objtmp);
191             OPENSSL_free(objtmp);
192             goto err;
193         }
194         OPENSSL_free(objtmp);
195
196     }
197     return ainfo;
198  err:
199     sk_ACCESS_DESCRIPTION_pop_free(ainfo, ACCESS_DESCRIPTION_free);
200     return NULL;
201 }
202
203 int i2a_ACCESS_DESCRIPTION(BIO *bp, ACCESS_DESCRIPTION *a)
204 {
205     i2a_ASN1_OBJECT(bp, a->method);
206     return 2;
207 }