1 /* crypto/asn1/a_object.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
62 #include <openssl/buffer.h>
63 #include <openssl/asn1.h>
64 #include <openssl/objects.h>
65 #include <openssl/bn.h>
67 int i2d_ASN1_OBJECT(ASN1_OBJECT *a, unsigned char **pp)
72 if ((a == NULL) || (a->data == NULL)) return(0);
74 objsize = ASN1_object_size(0,a->length,V_ASN1_OBJECT);
75 if (pp == NULL) return objsize;
78 ASN1_put_object(&p,0,a->length,V_ASN1_OBJECT,V_ASN1_UNIVERSAL);
79 memcpy(p,a->data,a->length);
86 size_t a2d_ASN1_OBJECT(unsigned char *out, size_t olen, const char *buf,
89 int i,len=0,c, use_bn;
91 char ftmp[24], *tmp = ftmp;
92 size_t tmpsize = sizeof ftmp;
105 if ((c >= '0') && (c <= '2'))
111 ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_FIRST_NUM_TOO_LARGE);
117 ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_MISSING_SECOND_NUMBER);
125 if ((c != '.') && (c != ' '))
127 ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_INVALID_SEPARATOR);
137 if ((c == ' ') || (c == '.'))
139 if ((c < '0') || (c > '9'))
141 ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_INVALID_DIGIT);
144 if (!use_bn && l > (ULONG_MAX / 10L))
149 if (!bl || !BN_set_word(bl, l))
154 if (!BN_mul_word(bl, 10L)
155 || !BN_add_signed_word(bl, c-'0'))
163 if ((first < 2) && (l >= 40))
165 ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_SECOND_NUMBER_TOO_LARGE);
170 if (!BN_add_word(bl, first * 40))
180 blsize = BN_num_bits(bl);
181 blsize = (blsize + 6)/7;
182 if (blsize > tmpsize)
186 tmpsize = blsize + 32;
187 tmp = OPENSSL_malloc(tmpsize);
192 tmp[i++] = (unsigned char)BN_div_word(bl, 0x80L);
199 tmp[i++]=(unsigned char)l&0x7f;
209 ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_BUFFER_TOO_SMALL);
213 out[len++]=tmp[i]|0x80;
232 int i2t_ASN1_OBJECT(char *buf, size_t buf_len, ASN1_OBJECT *a)
234 return OBJ_obj2txt(buf, buf_len, a, 0);
237 int i2a_ASN1_OBJECT(BIO *bp, ASN1_OBJECT *a)
239 char buf[80], *p = buf;
242 if ((a == NULL) || (a->data == NULL))
243 return(BIO_write(bp,"NULL",4));
244 i=i2t_ASN1_OBJECT(buf,sizeof buf,a);
245 if (i > (int)(sizeof(buf) - 1))
247 p = OPENSSL_malloc(i + 1);
250 i2t_ASN1_OBJECT(p,i + 1,a);
253 return BIO_write(bp, "<INVALID>", 9);
260 ASN1_OBJECT *d2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
263 const unsigned char *p;
267 ASN1_OBJECT *ret = NULL;
270 inf=ASN1_get_object(&p,&len,&tag,&xclass,length);
273 i=ASN1_R_BAD_OBJECT_HEADER;
277 if (tag != V_ASN1_OBJECT)
279 i=ASN1_R_EXPECTING_AN_OBJECT;
282 ret = c2i_ASN1_OBJECT(a, &p, len);
286 ASN1err(ASN1_F_D2I_ASN1_OBJECT,i);
289 ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
292 ASN1_OBJECT *ret=NULL;
293 const unsigned char *p;
297 /* only the ASN1_OBJECTs from the 'table' will have values
298 * for ->sn or ->ln */
299 if ((a == NULL) || ((*a) == NULL) ||
300 !((*a)->flags & ASN1_OBJECT_FLAG_DYNAMIC))
302 if ((ret=ASN1_OBJECT_new()) == NULL) return(NULL);
307 /* detach data from object */
308 data = (unsigned char *)ret->data;
310 /* once detached we can change it */
311 if ((data == NULL) || (ret->length < len))
314 if (data != NULL) OPENSSL_free(data);
315 data=OPENSSL_malloc(len ? len : 1);
317 { i=ERR_R_MALLOC_FAILURE; goto err; }
318 ret->flags|=ASN1_OBJECT_FLAG_DYNAMIC_DATA;
321 /* reattach data to object, after which it remains const */
326 /* ret->flags=ASN1_OBJECT_FLAG_DYNAMIC; we know it is dynamic */
329 if (a != NULL) (*a)=ret;
333 ASN1err(ASN1_F_C2I_ASN1_OBJECT,i);
334 if ((ret != NULL) && ((a == NULL) || (*a != ret)))
335 ASN1_OBJECT_free(ret);
339 ASN1_OBJECT *ASN1_OBJECT_new(void)
343 ret=(ASN1_OBJECT *)OPENSSL_malloc(sizeof(ASN1_OBJECT));
346 ASN1err(ASN1_F_ASN1_OBJECT_NEW,ERR_R_MALLOC_FAILURE);
354 ret->flags=ASN1_OBJECT_FLAG_DYNAMIC;
358 void ASN1_OBJECT_free(ASN1_OBJECT *a)
360 if (a == NULL) return;
361 if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_STRINGS)
363 #ifndef CONST_STRICT /* disable purely for compile-time strict const checking. Doing this on a "real" compile will cause memory leaks */
364 if (a->sn != NULL) OPENSSL_free((void *)a->sn);
365 if (a->ln != NULL) OPENSSL_free((void *)a->ln);
369 if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_DATA)
371 if (a->data != NULL) OPENSSL_free((void *)a->data);
375 if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC)
379 ASN1_OBJECT *ASN1_OBJECT_create(int nid, unsigned char *data, size_t len,
380 const char *sn, const char *ln)
389 o.flags=ASN1_OBJECT_FLAG_DYNAMIC|ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|
390 ASN1_OBJECT_FLAG_DYNAMIC_DATA;
394 IMPLEMENT_STACK_OF(ASN1_OBJECT)
395 IMPLEMENT_ASN1_SET_OF(ASN1_OBJECT)