Support for ASN1 ENUMERATED type. This copies and duplicates the ASN1_INTEGER
[openssl.git] / crypto / asn1 / a_type.c
1 /* crypto/asn1/a_type.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 "asn1_mac.h"
62
63 /* ASN1err(ASN1_F_D2I_ASN1_BYTES,ASN1_R_WRONG_TAG);
64  * ASN1err(ASN1_F_ASN1_COLLATE_PRIMATIVE,ASN1_R_WRONG_TAG);
65  */
66
67 #ifndef NOPROTO
68 static void ASN1_TYPE_component_free(ASN1_TYPE *a);
69 #else
70 static void ASN1_TYPE_component_free();
71 #endif
72
73 int i2d_ASN1_TYPE(a,pp)
74 ASN1_TYPE *a;
75 unsigned char **pp;
76         {
77         int r=0;
78
79         if (a == NULL) return(0);
80
81         switch (a->type)
82                 {
83         case V_ASN1_NULL:
84                 if (pp != NULL)
85                         ASN1_put_object(pp,0,0,V_ASN1_NULL,V_ASN1_UNIVERSAL);
86                 r=2;
87                 break;
88         case V_ASN1_INTEGER:
89         case V_ASN1_NEG_INTEGER:
90                 r=i2d_ASN1_INTEGER(a->value.integer,pp);
91                 break;
92         case V_ASN1_ENUMERATED:
93         case V_ASN1_NEG_ENUMERATED:
94                 r=i2d_ASN1_ENUMERATED(a->value.enumerated,pp);
95                 break;
96         case V_ASN1_BIT_STRING:
97                 r=i2d_ASN1_BIT_STRING(a->value.bit_string,pp);
98                 break;
99         case V_ASN1_OCTET_STRING:
100                 r=i2d_ASN1_OCTET_STRING(a->value.octet_string,pp);
101                 break;
102         case V_ASN1_OBJECT:
103                 r=i2d_ASN1_OBJECT(a->value.object,pp);
104                 break;
105         case V_ASN1_PRINTABLESTRING:
106                 r=M_i2d_ASN1_PRINTABLESTRING(a->value.printablestring,pp);
107                 break;
108         case V_ASN1_T61STRING:
109                 r=M_i2d_ASN1_T61STRING(a->value.t61string,pp);
110                 break;
111         case V_ASN1_IA5STRING:
112                 r=M_i2d_ASN1_IA5STRING(a->value.ia5string,pp);
113                 break;
114         case V_ASN1_GENERALSTRING:
115                 r=M_i2d_ASN1_GENERALSTRING(a->value.generalstring,pp);
116                 break;
117         case V_ASN1_UNIVERSALSTRING:
118                 r=M_i2d_ASN1_UNIVERSALSTRING(a->value.universalstring,pp);
119                 break;
120         case V_ASN1_BMPSTRING:
121                 r=M_i2d_ASN1_BMPSTRING(a->value.bmpstring,pp);
122                 break;
123         case V_ASN1_UTCTIME:
124                 r=i2d_ASN1_UTCTIME(a->value.utctime,pp);
125                 break;
126         case V_ASN1_GENERALIZEDTIME:
127                 r=i2d_ASN1_GENERALIZEDTIME(a->value.generalizedtime,pp);
128                 break;
129         case V_ASN1_SET:
130         case V_ASN1_SEQUENCE:
131                 if (a->value.set == NULL)
132                         r=0;
133                 else
134                         {
135                         r=a->value.set->length;
136                         if (pp != NULL)
137                                 {
138                                 memcpy(*pp,a->value.set->data,r);
139                                 *pp+=r;
140                                 }
141                         }
142                 break;
143                 }
144         return(r);
145         }
146
147 ASN1_TYPE *d2i_ASN1_TYPE(a,pp,length)
148 ASN1_TYPE **a;
149 unsigned char **pp;
150 long length;
151         {
152         ASN1_TYPE *ret=NULL;
153         unsigned char *q,*p,*max;
154         int inf,tag,xclass;
155         long len;
156
157         if ((a == NULL) || ((*a) == NULL))
158                 {
159                 if ((ret=ASN1_TYPE_new()) == NULL) goto err;
160                 }
161         else
162                 ret=(*a);
163
164         p= *pp;
165         q=p;
166         max=(p+length);
167
168         inf=ASN1_get_object(&q,&len,&tag,&xclass,length);
169         if (inf & 0x80) goto err;
170         
171         ASN1_TYPE_component_free(ret);
172
173         switch (tag)
174                 {
175         case V_ASN1_NULL:
176                 p=q;
177                 ret->value.ptr=NULL;
178                 break;
179         case V_ASN1_INTEGER:
180                 if ((ret->value.integer=
181                         d2i_ASN1_INTEGER(NULL,&p,max-p)) == NULL)
182                         goto err;
183                 break;
184         case V_ASN1_ENUMERATED:
185                 if ((ret->value.enumerated=
186                         d2i_ASN1_ENUMERATED(NULL,&p,max-p)) == NULL)
187                         goto err;
188                 break;
189         case V_ASN1_BIT_STRING:
190                 if ((ret->value.bit_string=
191                         d2i_ASN1_BIT_STRING(NULL,&p,max-p)) == NULL)
192                         goto err;
193                 break;
194         case V_ASN1_OCTET_STRING:
195                 if ((ret->value.octet_string=
196                         d2i_ASN1_OCTET_STRING(NULL,&p,max-p)) == NULL)
197                         goto err;
198                 break;
199         case V_ASN1_OBJECT:
200                 if ((ret->value.object=
201                         d2i_ASN1_OBJECT(NULL,&p,max-p)) == NULL)
202                         goto err;
203                 break;
204         case V_ASN1_PRINTABLESTRING:
205                 if ((ret->value.printablestring=
206                         d2i_ASN1_PRINTABLESTRING(NULL,&p,max-p)) == NULL)
207                         goto err;
208                 break;
209         case V_ASN1_T61STRING:
210                 if ((ret->value.t61string=
211                         M_d2i_ASN1_T61STRING(NULL,&p,max-p)) == NULL)
212                         goto err;
213                 break;
214         case V_ASN1_IA5STRING:
215                 if ((ret->value.ia5string=
216                         M_d2i_ASN1_IA5STRING(NULL,&p,max-p)) == NULL)
217                         goto err;
218                 break;
219         case V_ASN1_GENERALSTRING:
220                 if ((ret->value.generalstring=
221                         M_d2i_ASN1_GENERALSTRING(NULL,&p,max-p)) == NULL)
222                         goto err;
223                 break;
224         case V_ASN1_UNIVERSALSTRING:
225                 if ((ret->value.universalstring=
226                         M_d2i_ASN1_UNIVERSALSTRING(NULL,&p,max-p)) == NULL)
227                         goto err;
228                 break;
229         case V_ASN1_BMPSTRING:
230                 if ((ret->value.bmpstring=
231                         M_d2i_ASN1_BMPSTRING(NULL,&p,max-p)) == NULL)
232                         goto err;
233                 break;
234         case V_ASN1_UTCTIME:
235                 if ((ret->value.utctime=
236                         d2i_ASN1_UTCTIME(NULL,&p,max-p)) == NULL)
237                         goto err;
238                 break;
239         case V_ASN1_GENERALIZEDTIME:
240                 if ((ret->value.generalizedtime=
241                         d2i_ASN1_GENERALIZEDTIME(NULL,&p,max-p)) == NULL)
242                         goto err;
243                 break;
244         case V_ASN1_SET:
245         case V_ASN1_SEQUENCE:
246                 /* Sets and sequences are left complete */
247                 if ((ret->value.set=ASN1_STRING_new()) == NULL) goto err;
248                 ret->value.set->type=tag;
249                 len+=(q-p);
250                 if (!ASN1_STRING_set(ret->value.set,p,(int)len)) goto err;
251                 p+=len;
252                 break;
253         default:
254                 ASN1err(ASN1_F_D2I_ASN1_TYPE,ASN1_R_BAD_TYPE);
255                 goto err;
256                 }
257
258         ret->type=tag;
259         if (a != NULL) (*a)=ret;
260         *pp=p;
261         return(ret);
262 err:
263         if ((ret != NULL) && ((a == NULL) || (*a != ret))) ASN1_TYPE_free(ret);
264         return(NULL);
265         }
266
267 ASN1_TYPE *ASN1_TYPE_new()
268         {
269         ASN1_TYPE *ret=NULL;
270         ASN1_CTX c;
271
272         M_ASN1_New_Malloc(ret,ASN1_TYPE);
273         ret->type= -1;
274         ret->value.ptr=NULL;
275         return(ret);
276         M_ASN1_New_Error(ASN1_F_ASN1_TYPE_NEW);
277         }
278
279 void ASN1_TYPE_free(a)
280 ASN1_TYPE *a;
281         {
282         if (a == NULL) return;
283         ASN1_TYPE_component_free(a);
284         Free((char *)(char *)a);
285         }
286
287 int ASN1_TYPE_get(a)
288 ASN1_TYPE *a;
289         {
290         if (a->value.ptr != NULL)
291                 return(a->type);
292         else
293                 return(0);
294         }
295
296 void ASN1_TYPE_set(a,type,value)
297 ASN1_TYPE *a;
298 int type;
299 char *value;
300         {
301         if (a->value.ptr != NULL)
302                 ASN1_TYPE_component_free(a);
303         a->type=type;
304         a->value.ptr=value;
305         }
306
307 static void ASN1_TYPE_component_free(a)
308 ASN1_TYPE *a;
309         {
310         if (a == NULL) return;
311
312         if (a->value.ptr != NULL)
313                 {
314                 switch (a->type)
315                         {
316                 case V_ASN1_OBJECT:
317                         ASN1_OBJECT_free(a->value.object);
318                         break;
319                 case V_ASN1_INTEGER:
320                 case V_ASN1_NEG_INTEGER:
321                 case V_ASN1_ENUMERATED:
322                 case V_ASN1_NEG_ENUMERATED:
323                 case V_ASN1_BIT_STRING:
324                 case V_ASN1_OCTET_STRING:
325                 case V_ASN1_SEQUENCE:
326                 case V_ASN1_SET:
327                 case V_ASN1_NUMERICSTRING:
328                 case V_ASN1_PRINTABLESTRING:
329                 case V_ASN1_T61STRING:
330                 case V_ASN1_VIDEOTEXSTRING:
331                 case V_ASN1_IA5STRING:
332                 case V_ASN1_UTCTIME:
333                 case V_ASN1_GENERALIZEDTIME:
334                 case V_ASN1_GRAPHICSTRING:
335                 case V_ASN1_VISIBLESTRING:
336                 case V_ASN1_GENERALSTRING:
337                 case V_ASN1_UNIVERSALSTRING:
338                 case V_ASN1_BMPSTRING:
339                         ASN1_STRING_free((ASN1_STRING *)a->value.ptr);
340                         break;
341                 default:
342                         /* MEMORY LEAK */
343                         break;
344                         }
345                 a->type=0;
346                 a->value.ptr=NULL;
347                 }
348         }
349