Add support for VISIBLESTRING and UTF8String
[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_UTF8STRING:
121                 r=M_i2d_ASN1_UTF8STRING(a->value.utf8string,pp);
122                 break;
123         case V_ASN1_VISIBLESTRING:
124                 r=M_i2d_ASN1_VISIBLESTRING(a->value.visiblestring,pp);
125                 break;
126         case V_ASN1_BMPSTRING:
127                 r=M_i2d_ASN1_BMPSTRING(a->value.bmpstring,pp);
128                 break;
129         case V_ASN1_UTCTIME:
130                 r=i2d_ASN1_UTCTIME(a->value.utctime,pp);
131                 break;
132         case V_ASN1_GENERALIZEDTIME:
133                 r=i2d_ASN1_GENERALIZEDTIME(a->value.generalizedtime,pp);
134                 break;
135         case V_ASN1_SET:
136         case V_ASN1_SEQUENCE:
137                 if (a->value.set == NULL)
138                         r=0;
139                 else
140                         {
141                         r=a->value.set->length;
142                         if (pp != NULL)
143                                 {
144                                 memcpy(*pp,a->value.set->data,r);
145                                 *pp+=r;
146                                 }
147                         }
148                 break;
149                 }
150         return(r);
151         }
152
153 ASN1_TYPE *d2i_ASN1_TYPE(a,pp,length)
154 ASN1_TYPE **a;
155 unsigned char **pp;
156 long length;
157         {
158         ASN1_TYPE *ret=NULL;
159         unsigned char *q,*p,*max;
160         int inf,tag,xclass;
161         long len;
162
163         if ((a == NULL) || ((*a) == NULL))
164                 {
165                 if ((ret=ASN1_TYPE_new()) == NULL) goto err;
166                 }
167         else
168                 ret=(*a);
169
170         p= *pp;
171         q=p;
172         max=(p+length);
173
174         inf=ASN1_get_object(&q,&len,&tag,&xclass,length);
175         if (inf & 0x80) goto err;
176         
177         ASN1_TYPE_component_free(ret);
178
179         switch (tag)
180                 {
181         case V_ASN1_NULL:
182                 p=q;
183                 ret->value.ptr=NULL;
184                 break;
185         case V_ASN1_INTEGER:
186                 if ((ret->value.integer=
187                         d2i_ASN1_INTEGER(NULL,&p,max-p)) == NULL)
188                         goto err;
189                 break;
190         case V_ASN1_ENUMERATED:
191                 if ((ret->value.enumerated=
192                         d2i_ASN1_ENUMERATED(NULL,&p,max-p)) == NULL)
193                         goto err;
194                 break;
195         case V_ASN1_BIT_STRING:
196                 if ((ret->value.bit_string=
197                         d2i_ASN1_BIT_STRING(NULL,&p,max-p)) == NULL)
198                         goto err;
199                 break;
200         case V_ASN1_OCTET_STRING:
201                 if ((ret->value.octet_string=
202                         d2i_ASN1_OCTET_STRING(NULL,&p,max-p)) == NULL)
203                         goto err;
204                 break;
205         case V_ASN1_VISIBLESTRING:
206                 if ((ret->value.visiblestring=
207                         d2i_ASN1_VISIBLESTRING(NULL,&p,max-p)) == NULL)
208                         goto err;
209                 break;
210         case V_ASN1_UTF8STRING:
211                 if ((ret->value.utf8string=
212                         d2i_ASN1_UTF8STRING(NULL,&p,max-p)) == NULL)
213                         goto err;
214                 break;
215         case V_ASN1_OBJECT:
216                 if ((ret->value.object=
217                         d2i_ASN1_OBJECT(NULL,&p,max-p)) == NULL)
218                         goto err;
219                 break;
220         case V_ASN1_PRINTABLESTRING:
221                 if ((ret->value.printablestring=
222                         d2i_ASN1_PRINTABLESTRING(NULL,&p,max-p)) == NULL)
223                         goto err;
224                 break;
225         case V_ASN1_T61STRING:
226                 if ((ret->value.t61string=
227                         M_d2i_ASN1_T61STRING(NULL,&p,max-p)) == NULL)
228                         goto err;
229                 break;
230         case V_ASN1_IA5STRING:
231                 if ((ret->value.ia5string=
232                         M_d2i_ASN1_IA5STRING(NULL,&p,max-p)) == NULL)
233                         goto err;
234                 break;
235         case V_ASN1_GENERALSTRING:
236                 if ((ret->value.generalstring=
237                         M_d2i_ASN1_GENERALSTRING(NULL,&p,max-p)) == NULL)
238                         goto err;
239                 break;
240         case V_ASN1_UNIVERSALSTRING:
241                 if ((ret->value.universalstring=
242                         M_d2i_ASN1_UNIVERSALSTRING(NULL,&p,max-p)) == NULL)
243                         goto err;
244                 break;
245         case V_ASN1_BMPSTRING:
246                 if ((ret->value.bmpstring=
247                         M_d2i_ASN1_BMPSTRING(NULL,&p,max-p)) == NULL)
248                         goto err;
249                 break;
250         case V_ASN1_UTCTIME:
251                 if ((ret->value.utctime=
252                         d2i_ASN1_UTCTIME(NULL,&p,max-p)) == NULL)
253                         goto err;
254                 break;
255         case V_ASN1_GENERALIZEDTIME:
256                 if ((ret->value.generalizedtime=
257                         d2i_ASN1_GENERALIZEDTIME(NULL,&p,max-p)) == NULL)
258                         goto err;
259                 break;
260         case V_ASN1_SET:
261         case V_ASN1_SEQUENCE:
262                 /* Sets and sequences are left complete */
263                 if ((ret->value.set=ASN1_STRING_new()) == NULL) goto err;
264                 ret->value.set->type=tag;
265                 len+=(q-p);
266                 if (!ASN1_STRING_set(ret->value.set,p,(int)len)) goto err;
267                 p+=len;
268                 break;
269         default:
270                 ASN1err(ASN1_F_D2I_ASN1_TYPE,ASN1_R_BAD_TYPE);
271                 goto err;
272                 }
273
274         ret->type=tag;
275         if (a != NULL) (*a)=ret;
276         *pp=p;
277         return(ret);
278 err:
279         if ((ret != NULL) && ((a == NULL) || (*a != ret))) ASN1_TYPE_free(ret);
280         return(NULL);
281         }
282
283 ASN1_TYPE *ASN1_TYPE_new()
284         {
285         ASN1_TYPE *ret=NULL;
286         ASN1_CTX c;
287
288         M_ASN1_New_Malloc(ret,ASN1_TYPE);
289         ret->type= -1;
290         ret->value.ptr=NULL;
291         return(ret);
292         M_ASN1_New_Error(ASN1_F_ASN1_TYPE_NEW);
293         }
294
295 void ASN1_TYPE_free(a)
296 ASN1_TYPE *a;
297         {
298         if (a == NULL) return;
299         ASN1_TYPE_component_free(a);
300         Free((char *)(char *)a);
301         }
302
303 int ASN1_TYPE_get(a)
304 ASN1_TYPE *a;
305         {
306         if (a->value.ptr != NULL)
307                 return(a->type);
308         else
309                 return(0);
310         }
311
312 void ASN1_TYPE_set(a,type,value)
313 ASN1_TYPE *a;
314 int type;
315 char *value;
316         {
317         if (a->value.ptr != NULL)
318                 ASN1_TYPE_component_free(a);
319         a->type=type;
320         a->value.ptr=value;
321         }
322
323 static void ASN1_TYPE_component_free(a)
324 ASN1_TYPE *a;
325         {
326         if (a == NULL) return;
327
328         if (a->value.ptr != NULL)
329                 {
330                 switch (a->type)
331                         {
332                 case V_ASN1_OBJECT:
333                         ASN1_OBJECT_free(a->value.object);
334                         break;
335                 case V_ASN1_INTEGER:
336                 case V_ASN1_NEG_INTEGER:
337                 case V_ASN1_ENUMERATED:
338                 case V_ASN1_NEG_ENUMERATED:
339                 case V_ASN1_BIT_STRING:
340                 case V_ASN1_OCTET_STRING:
341                 case V_ASN1_SEQUENCE:
342                 case V_ASN1_SET:
343                 case V_ASN1_NUMERICSTRING:
344                 case V_ASN1_PRINTABLESTRING:
345                 case V_ASN1_T61STRING:
346                 case V_ASN1_VIDEOTEXSTRING:
347                 case V_ASN1_IA5STRING:
348                 case V_ASN1_UTCTIME:
349                 case V_ASN1_GENERALIZEDTIME:
350                 case V_ASN1_GRAPHICSTRING:
351                 case V_ASN1_VISIBLESTRING:
352                 case V_ASN1_GENERALSTRING:
353                 case V_ASN1_UNIVERSALSTRING:
354                 case V_ASN1_BMPSTRING:
355                 case V_ASN1_UTF8STRING:
356                         ASN1_STRING_free((ASN1_STRING *)a->value.ptr);
357                         break;
358                 default:
359                         /* MEMORY LEAK */
360                         break;
361                         }
362                 a->type=0;
363                 a->value.ptr=NULL;
364                 }
365         }
366