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d02b48c6 | 1 | /* crypto/asn1/a_object.c */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
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 "buffer.h" | |
62 | #include "asn1.h" | |
63 | #include "objects.h" | |
64 | ||
65 | /* ASN1err(ASN1_F_ASN1_OBJECT_NEW,ASN1_R_EXPECTING_AN_OBJECT); | |
66 | * ASN1err(ASN1_F_D2I_ASN1_OBJECT,ASN1_R_BAD_OBJECT_HEADER); | |
58964a49 | 67 | * ASN1err(ASN1_F_I2T_ASN1_OBJECT,ASN1_R_BAD_OBJECT_HEADER); |
d02b48c6 RE |
68 | */ |
69 | ||
6b691a5c | 70 | int i2d_ASN1_OBJECT(ASN1_OBJECT *a, unsigned char **pp) |
d02b48c6 RE |
71 | { |
72 | unsigned char *p; | |
73 | ||
74 | if ((a == NULL) || (a->data == NULL)) return(0); | |
75 | ||
76 | if (pp == NULL) | |
77 | return(ASN1_object_size(0,a->length,V_ASN1_OBJECT)); | |
78 | ||
79 | p= *pp; | |
80 | ASN1_put_object(&p,0,a->length,V_ASN1_OBJECT,V_ASN1_UNIVERSAL); | |
81 | memcpy(p,a->data,a->length); | |
82 | p+=a->length; | |
83 | ||
84 | *pp=p; | |
85 | return(a->length); | |
86 | } | |
87 | ||
6b691a5c | 88 | int a2d_ASN1_OBJECT(unsigned char *out, int olen, const char *buf, int num) |
d02b48c6 RE |
89 | { |
90 | int i,first,len=0,c; | |
e778802f BL |
91 | char tmp[24]; |
92 | const char *p; | |
d02b48c6 RE |
93 | unsigned long l; |
94 | ||
95 | if (num == 0) | |
96 | return(0); | |
97 | else if (num == -1) | |
98 | num=strlen(buf); | |
99 | ||
100 | p=buf; | |
101 | c= *(p++); | |
102 | num--; | |
103 | if ((c >= '0') && (c <= '2')) | |
104 | { | |
105 | first=(c-'0')*40; | |
106 | } | |
107 | else | |
108 | { | |
109 | ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_FIRST_NUM_TOO_LARGE); | |
110 | goto err; | |
111 | } | |
112 | ||
113 | if (num <= 0) | |
114 | { | |
115 | ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_MISSING_SECOND_NUMBER); | |
116 | goto err; | |
117 | } | |
118 | c= *(p++); | |
119 | num--; | |
120 | for (;;) | |
121 | { | |
122 | if (num <= 0) break; | |
123 | if ((c != '.') && (c != ' ')) | |
124 | { | |
125 | ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_INVALID_SEPARATOR); | |
126 | goto err; | |
127 | } | |
128 | l=0; | |
129 | for (;;) | |
130 | { | |
131 | if (num <= 0) break; | |
132 | num--; | |
133 | c= *(p++); | |
134 | if ((c == ' ') || (c == '.')) | |
135 | break; | |
136 | if ((c < '0') || (c > '9')) | |
137 | { | |
138 | ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_INVALID_DIGIT); | |
139 | goto err; | |
140 | } | |
141 | l=l*10L+(long)(c-'0'); | |
142 | } | |
143 | if (len == 0) | |
144 | { | |
145 | if ((first < 2) && (l >= 40)) | |
146 | { | |
147 | ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_SECOND_NUMBER_TOO_LARGE); | |
148 | goto err; | |
149 | } | |
150 | l+=(long)first; | |
151 | } | |
152 | i=0; | |
153 | for (;;) | |
154 | { | |
155 | tmp[i++]=(unsigned char)l&0x7f; | |
156 | l>>=7L; | |
157 | if (l == 0L) break; | |
158 | } | |
159 | if (out != NULL) | |
160 | { | |
161 | if (len+i > olen) | |
162 | { | |
163 | ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_BUFFER_TOO_SMALL); | |
164 | goto err; | |
165 | } | |
166 | while (--i > 0) | |
167 | out[len++]=tmp[i]|0x80; | |
168 | out[len++]=tmp[0]; | |
169 | } | |
170 | else | |
171 | len+=i; | |
172 | } | |
173 | return(len); | |
174 | err: | |
175 | return(0); | |
176 | } | |
177 | ||
6b691a5c | 178 | int i2t_ASN1_OBJECT(char *buf, int buf_len, ASN1_OBJECT *a) |
d02b48c6 | 179 | { |
58964a49 | 180 | int i,idx=0,n=0,len,nid; |
d02b48c6 RE |
181 | unsigned long l; |
182 | unsigned char *p; | |
e778802f | 183 | const char *s; |
58964a49 RE |
184 | char tbuf[32]; |
185 | ||
186 | if (buf_len <= 0) return(0); | |
d02b48c6 RE |
187 | |
188 | if ((a == NULL) || (a->data == NULL)) | |
189 | { | |
58964a49 RE |
190 | buf[0]='\0'; |
191 | return(0); | |
d02b48c6 RE |
192 | } |
193 | ||
194 | nid=OBJ_obj2nid(a); | |
195 | if (nid == NID_undef) | |
196 | { | |
197 | len=a->length; | |
198 | p=a->data; | |
199 | ||
200 | idx=0; | |
201 | l=0; | |
202 | while (idx < a->length) | |
203 | { | |
204 | l|=(p[idx]&0x7f); | |
205 | if (!(p[idx] & 0x80)) break; | |
206 | l<<=7L; | |
207 | idx++; | |
208 | } | |
209 | idx++; | |
210 | i=(int)(l/40); | |
211 | if (i > 2) i=2; | |
212 | l-=(long)(i*40); | |
213 | ||
58964a49 RE |
214 | sprintf(tbuf,"%d.%ld",i,l); |
215 | i=strlen(tbuf); | |
216 | strncpy(buf,tbuf,buf_len); | |
217 | buf_len-=i; | |
218 | buf+=i; | |
d02b48c6 RE |
219 | n+=i; |
220 | ||
221 | l=0; | |
222 | for (; idx<len; idx++) | |
223 | { | |
224 | l|=p[idx]&0x7f; | |
225 | if (!(p[idx] & 0x80)) | |
226 | { | |
58964a49 RE |
227 | sprintf(tbuf,".%ld",l); |
228 | i=strlen(tbuf); | |
229 | if (buf_len > 0) | |
230 | strncpy(buf,tbuf,buf_len); | |
231 | buf_len-=i; | |
232 | buf+=i; | |
d02b48c6 RE |
233 | n+=i; |
234 | l=0; | |
235 | } | |
236 | l<<=7L; | |
237 | } | |
238 | } | |
239 | else | |
240 | { | |
e778802f | 241 | s=OBJ_nid2ln(nid); |
d02b48c6 | 242 | if (s == NULL) |
e778802f | 243 | s=OBJ_nid2sn(nid); |
58964a49 RE |
244 | strncpy(buf,s,buf_len); |
245 | n=strlen(s); | |
d02b48c6 | 246 | } |
58964a49 | 247 | buf[buf_len-1]='\0'; |
d02b48c6 | 248 | return(n); |
58964a49 RE |
249 | } |
250 | ||
6b691a5c | 251 | int i2a_ASN1_OBJECT(BIO *bp, ASN1_OBJECT *a) |
58964a49 RE |
252 | { |
253 | char buf[80]; | |
254 | int i; | |
255 | ||
256 | if ((a == NULL) || (a->data == NULL)) | |
257 | return(BIO_write(bp,"NULL",4)); | |
258 | i=i2t_ASN1_OBJECT(buf,80,a); | |
259 | if (i > 80) i=80; | |
260 | BIO_write(bp,buf,i); | |
261 | return(i); | |
d02b48c6 RE |
262 | } |
263 | ||
6b691a5c UM |
264 | ASN1_OBJECT *d2i_ASN1_OBJECT(ASN1_OBJECT **a, unsigned char **pp, |
265 | long length) | |
d02b48c6 RE |
266 | { |
267 | ASN1_OBJECT *ret=NULL; | |
268 | unsigned char *p; | |
269 | long len; | |
270 | int tag,xclass; | |
271 | int inf,i; | |
272 | ||
273 | /* only the ASN1_OBJECTs from the 'table' will have values | |
274 | * for ->sn or ->ln */ | |
275 | if ((a == NULL) || ((*a) == NULL) || | |
276 | !((*a)->flags & ASN1_OBJECT_FLAG_DYNAMIC)) | |
277 | { | |
278 | if ((ret=ASN1_OBJECT_new()) == NULL) return(NULL); | |
279 | } | |
280 | else ret=(*a); | |
281 | ||
282 | p= *pp; | |
283 | ||
284 | inf=ASN1_get_object(&p,&len,&tag,&xclass,length); | |
285 | if (inf & 0x80) | |
286 | { | |
287 | i=ASN1_R_BAD_OBJECT_HEADER; | |
288 | goto err; | |
289 | } | |
290 | ||
291 | if (tag != V_ASN1_OBJECT) | |
292 | { | |
293 | i=ASN1_R_EXPECTING_AN_OBJECT; | |
294 | goto err; | |
295 | } | |
296 | if ((ret->data == NULL) || (ret->length < len)) | |
297 | { | |
298 | if (ret->data != NULL) Free((char *)ret->data); | |
299 | ret->data=(unsigned char *)Malloc((int)len); | |
300 | ret->flags|=ASN1_OBJECT_FLAG_DYNAMIC_DATA; | |
301 | if (ret->data == NULL) | |
302 | { i=ERR_R_MALLOC_FAILURE; goto err; } | |
303 | } | |
304 | memcpy(ret->data,p,(int)len); | |
305 | ret->length=(int)len; | |
306 | ret->sn=NULL; | |
307 | ret->ln=NULL; | |
308 | /* ret->flags=ASN1_OBJECT_FLAG_DYNAMIC; we know it is dynamic */ | |
309 | p+=len; | |
310 | ||
311 | if (a != NULL) (*a)=ret; | |
312 | *pp=p; | |
313 | return(ret); | |
314 | err: | |
315 | ASN1err(ASN1_F_D2I_ASN1_OBJECT,i); | |
316 | if ((ret != NULL) && ((a == NULL) || (*a != ret))) | |
317 | ASN1_OBJECT_free(ret); | |
318 | return(NULL); | |
319 | } | |
320 | ||
6b691a5c | 321 | ASN1_OBJECT *ASN1_OBJECT_new(void) |
d02b48c6 RE |
322 | { |
323 | ASN1_OBJECT *ret; | |
324 | ||
325 | ret=(ASN1_OBJECT *)Malloc(sizeof(ASN1_OBJECT)); | |
326 | if (ret == NULL) | |
327 | { | |
328 | ASN1err(ASN1_F_ASN1_OBJECT_NEW,ERR_R_MALLOC_FAILURE); | |
329 | return(NULL); | |
330 | } | |
331 | ret->length=0; | |
332 | ret->data=NULL; | |
333 | ret->nid=0; | |
334 | ret->sn=NULL; | |
335 | ret->ln=NULL; | |
336 | ret->flags=ASN1_OBJECT_FLAG_DYNAMIC; | |
337 | return(ret); | |
338 | } | |
339 | ||
6b691a5c | 340 | void ASN1_OBJECT_free(ASN1_OBJECT *a) |
d02b48c6 RE |
341 | { |
342 | if (a == NULL) return; | |
343 | if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_STRINGS) | |
344 | { | |
e778802f BL |
345 | #ifndef CONST_STRICT /* disable purely for compile-time strict const checking. Doing this on a "real" compile will cause mempory leaks */ |
346 | if (a->sn != NULL) Free((void *)a->sn); | |
347 | if (a->ln != NULL) Free((void *)a->ln); | |
348 | #endif | |
d02b48c6 RE |
349 | a->sn=a->ln=NULL; |
350 | } | |
351 | if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_DATA) | |
352 | { | |
353 | if (a->data != NULL) Free(a->data); | |
354 | a->data=NULL; | |
355 | a->length=0; | |
356 | } | |
357 | if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC) | |
e778802f | 358 | Free(a); |
d02b48c6 RE |
359 | } |
360 | ||
6b691a5c UM |
361 | ASN1_OBJECT *ASN1_OBJECT_create(int nid, unsigned char *data, int len, |
362 | char *sn, char *ln) | |
d02b48c6 RE |
363 | { |
364 | ASN1_OBJECT o; | |
365 | ||
366 | o.sn=sn; | |
367 | o.ln=ln; | |
368 | o.data=data; | |
369 | o.nid=nid; | |
370 | o.length=len; | |
dfeab068 RE |
371 | o.flags=ASN1_OBJECT_FLAG_DYNAMIC|ASN1_OBJECT_FLAG_DYNAMIC_STRINGS| |
372 | ASN1_OBJECT_FLAG_DYNAMIC_DATA; | |
d02b48c6 RE |
373 | return(OBJ_dup(&o)); |
374 | } | |
375 |