Yet another stack.
[openssl.git] / crypto / asn1 / x_cinf.c
1 /* crypto/asn1/x_cinf.c */
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 <stdio.h>
60 #include "cryptlib.h"
61 #include <openssl/asn1_mac.h>
62
63 int i2d_X509_CINF(X509_CINF *a, unsigned char **pp)
64         {
65         int v1=0,v2=0;
66         M_ASN1_I2D_vars(a);
67
68         M_ASN1_I2D_len_EXP_opt(a->version,i2d_ASN1_INTEGER,0,v1);
69         M_ASN1_I2D_len(a->serialNumber,         i2d_ASN1_INTEGER);
70         M_ASN1_I2D_len(a->signature,            i2d_X509_ALGOR);
71         M_ASN1_I2D_len(a->issuer,               i2d_X509_NAME);
72         M_ASN1_I2D_len(a->validity,             i2d_X509_VAL);
73         M_ASN1_I2D_len(a->subject,              i2d_X509_NAME);
74         M_ASN1_I2D_len(a->key,                  i2d_X509_PUBKEY);
75         M_ASN1_I2D_len_IMP_opt(a->issuerUID,    i2d_ASN1_BIT_STRING);
76         M_ASN1_I2D_len_IMP_opt(a->subjectUID,   i2d_ASN1_BIT_STRING);
77         M_ASN1_I2D_len_EXP_SEQUENCE_opt_type(X509_EXTENSION,a->extensions,
78                                              i2d_X509_EXTENSION,3,
79                                              V_ASN1_SEQUENCE,v2);
80
81         M_ASN1_I2D_seq_total();
82
83         M_ASN1_I2D_put_EXP_opt(a->version,i2d_ASN1_INTEGER,0,v1);
84         M_ASN1_I2D_put(a->serialNumber,         i2d_ASN1_INTEGER);
85         M_ASN1_I2D_put(a->signature,            i2d_X509_ALGOR);
86         M_ASN1_I2D_put(a->issuer,               i2d_X509_NAME);
87         M_ASN1_I2D_put(a->validity,             i2d_X509_VAL);
88         M_ASN1_I2D_put(a->subject,              i2d_X509_NAME);
89         M_ASN1_I2D_put(a->key,                  i2d_X509_PUBKEY);
90         M_ASN1_I2D_put_IMP_opt(a->issuerUID,    i2d_ASN1_BIT_STRING,1);
91         M_ASN1_I2D_put_IMP_opt(a->subjectUID,   i2d_ASN1_BIT_STRING,2);
92         M_ASN1_I2D_put_EXP_SEQUENCE_opt_type(X509_EXTENSION,a->extensions,
93                                              i2d_X509_EXTENSION,3,
94                                              V_ASN1_SEQUENCE,v2);
95
96         M_ASN1_I2D_finish();
97         }
98
99 X509_CINF *d2i_X509_CINF(X509_CINF **a, unsigned char **pp, long length)
100         {
101         int ver=0;
102         M_ASN1_D2I_vars(a,X509_CINF *,X509_CINF_new);
103
104         M_ASN1_D2I_Init();
105         M_ASN1_D2I_start_sequence();
106         /* we have the optional version field */
107         if (M_ASN1_next == (V_ASN1_CONTEXT_SPECIFIC | V_ASN1_CONSTRUCTED | 0))
108                 {
109                 M_ASN1_D2I_get_EXP_opt(ret->version,d2i_ASN1_INTEGER,0);
110                 if (ret->version->data != NULL)
111                         ver=ret->version->data[0];
112                 }
113         else
114                 {
115                 if (ret->version != NULL)
116                         {
117                         ASN1_INTEGER_free(ret->version);
118                         ret->version=NULL;
119                         }
120                 }
121         M_ASN1_D2I_get(ret->serialNumber,d2i_ASN1_INTEGER);
122         M_ASN1_D2I_get(ret->signature,d2i_X509_ALGOR);
123         M_ASN1_D2I_get(ret->issuer,d2i_X509_NAME);
124         M_ASN1_D2I_get(ret->validity,d2i_X509_VAL);
125         M_ASN1_D2I_get(ret->subject,d2i_X509_NAME);
126         M_ASN1_D2I_get(ret->key,d2i_X509_PUBKEY);
127         if (ver >= 1) /* version 2 extensions */
128                 {
129                 if (ret->issuerUID != NULL)
130                         {
131                         ASN1_BIT_STRING_free(ret->issuerUID);
132                         ret->issuerUID=NULL;
133                         }
134                 if (ret->subjectUID != NULL)
135                         {
136                         ASN1_BIT_STRING_free(ret->subjectUID);
137                         ret->subjectUID=NULL;
138                         }
139                 M_ASN1_D2I_get_IMP_opt(ret->issuerUID,d2i_ASN1_BIT_STRING,  1,
140                         V_ASN1_BIT_STRING);
141                 M_ASN1_D2I_get_IMP_opt(ret->subjectUID,d2i_ASN1_BIT_STRING, 2,
142                         V_ASN1_BIT_STRING);
143                 }
144 /* Note: some broken certificates include extensions but don't set
145  * the version number properly. By bypassing this check they can
146  * be parsed.
147  */
148
149 #ifdef VERSION_EXT_CHECK
150         if (ver >= 2) /* version 3 extensions */
151 #endif
152                 {
153                 if (ret->extensions != NULL)
154                         while (sk_X509_EXTENSION_num(ret->extensions))
155                                 X509_EXTENSION_free(
156                                       sk_X509_EXTENSION_pop(ret->extensions));
157                 M_ASN1_D2I_get_EXP_set_opt_type(X509_EXTENSION,ret->extensions,
158                                                 d2i_X509_EXTENSION,
159                                                 X509_EXTENSION_free,3,
160                                                 V_ASN1_SEQUENCE);
161                 }
162         M_ASN1_D2I_Finish(a,X509_CINF_free,ASN1_F_D2I_X509_CINF);
163         }
164
165 X509_CINF *X509_CINF_new(void)
166         {
167         X509_CINF *ret=NULL;
168         ASN1_CTX c;
169
170         M_ASN1_New_Malloc(ret,X509_CINF);
171         ret->version=NULL;
172         M_ASN1_New(ret->serialNumber,ASN1_INTEGER_new);
173         M_ASN1_New(ret->signature,X509_ALGOR_new);
174         M_ASN1_New(ret->issuer,X509_NAME_new);
175         M_ASN1_New(ret->validity,X509_VAL_new);
176         M_ASN1_New(ret->subject,X509_NAME_new);
177         M_ASN1_New(ret->key,X509_PUBKEY_new);
178         ret->issuerUID=NULL;
179         ret->subjectUID=NULL;
180         ret->extensions=NULL;
181         return(ret);
182         M_ASN1_New_Error(ASN1_F_X509_CINF_NEW);
183         }
184
185 void X509_CINF_free(X509_CINF *a)
186         {
187         if (a == NULL) return;
188         ASN1_INTEGER_free(a->version);
189         ASN1_INTEGER_free(a->serialNumber);
190         X509_ALGOR_free(a->signature);
191         X509_NAME_free(a->issuer);
192         X509_VAL_free(a->validity);
193         X509_NAME_free(a->subject);
194         X509_PUBKEY_free(a->key);
195         ASN1_BIT_STRING_free(a->issuerUID);
196         ASN1_BIT_STRING_free(a->subjectUID);
197         sk_X509_EXTENSION_pop_free(a->extensions,X509_EXTENSION_free);
198         Free(a);
199         }
200