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 int a2d_ASN1_OBJECT(unsigned char *out, int olen, const char *buf, int num)
88 int i,first,len=0,c, use_bn;
89 char ftmp[24], *tmp = ftmp;
90 int tmpsize = sizeof ftmp;
103 if ((c >= '0') && (c <= '2'))
109 ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_FIRST_NUM_TOO_LARGE);
115 ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_MISSING_SECOND_NUMBER);
123 if ((c != '.') && (c != ' '))
125 ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_INVALID_SEPARATOR);
135 if ((c == ' ') || (c == '.'))
137 if ((c < '0') || (c > '9'))
139 ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_INVALID_DIGIT);
142 if (!use_bn && l >= ((ULONG_MAX - 80) / 10L))
147 if (!bl || !BN_set_word(bl, l))
152 if (!BN_mul_word(bl, 10L)
153 || !BN_add_word(bl, c-'0'))
157 l=l*10L+(long)(c-'0');
161 if ((first < 2) && (l >= 40))
163 ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_SECOND_NUMBER_TOO_LARGE);
168 if (!BN_add_word(bl, first * 40))
178 blsize = BN_num_bits(bl);
179 blsize = (blsize + 6)/7;
180 if (blsize > tmpsize)
184 tmpsize = blsize + 32;
185 tmp = OPENSSL_malloc(tmpsize);
190 tmp[i++] = (unsigned char)BN_div_word(bl, 0x80L);
197 tmp[i++]=(unsigned char)l&0x7f;
207 ASN1err(ASN1_F_A2D_ASN1_OBJECT,ASN1_R_BUFFER_TOO_SMALL);
211 out[len++]=tmp[i]|0x80;
230 int i2t_ASN1_OBJECT(char *buf, int buf_len, ASN1_OBJECT *a)
232 return OBJ_obj2txt(buf, buf_len, a, 0);
235 int i2a_ASN1_OBJECT(BIO *bp, ASN1_OBJECT *a)
237 char buf[80], *p = buf;
240 if ((a == NULL) || (a->data == NULL))
241 return(BIO_write(bp,"NULL",4));
242 i=i2t_ASN1_OBJECT(buf,sizeof buf,a);
243 if (i > (int)(sizeof(buf) - 1))
245 p = OPENSSL_malloc(i + 1);
248 i2t_ASN1_OBJECT(p,i + 1,a);
252 i = BIO_write(bp, "<INVALID>", 9);
253 i += BIO_dump(bp, (const char *)a->data, a->length);
262 ASN1_OBJECT *d2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
265 const unsigned char *p;
269 ASN1_OBJECT *ret = NULL;
271 inf=ASN1_get_object(&p,&len,&tag,&xclass,length);
274 i=ASN1_R_BAD_OBJECT_HEADER;
278 if (tag != V_ASN1_OBJECT)
280 i=ASN1_R_EXPECTING_AN_OBJECT;
283 ret = c2i_ASN1_OBJECT(a, &p, len);
287 ASN1err(ASN1_F_D2I_ASN1_OBJECT,i);
291 ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
294 ASN1_OBJECT *ret=NULL;
295 const unsigned char *p;
299 /* Sanity check OID encoding.
300 * Need at least one content octet.
301 * MSB must be clear in the last octet.
302 * can't have leading 0x80 in subidentifiers, see: X.690 8.19.2
304 if (len <= 0 || len > INT_MAX || pp == NULL || (p = *pp) == NULL ||
307 ASN1err(ASN1_F_C2I_ASN1_OBJECT,ASN1_R_INVALID_OBJECT_ENCODING);
310 /* Now 0 < len <= INT_MAX, so the cast is safe. */
312 for (i = 0; i < length; i++, p++)
314 if (*p == 0x80 && (!i || !(p[-1] & 0x80)))
316 ASN1err(ASN1_F_C2I_ASN1_OBJECT,ASN1_R_INVALID_OBJECT_ENCODING);
321 /* only the ASN1_OBJECTs from the 'table' will have values
322 * for ->sn or ->ln */
323 if ((a == NULL) || ((*a) == NULL) ||
324 !((*a)->flags & ASN1_OBJECT_FLAG_DYNAMIC))
326 if ((ret=ASN1_OBJECT_new()) == NULL) return(NULL);
331 /* detach data from object */
332 data = (unsigned char *)ret->data;
334 /* once detached we can change it */
335 if ((data == NULL) || (ret->length < length))
338 if (data != NULL) OPENSSL_free(data);
339 data=(unsigned char *)OPENSSL_malloc(length);
341 { i=ERR_R_MALLOC_FAILURE; goto err; }
342 ret->flags|=ASN1_OBJECT_FLAG_DYNAMIC_DATA;
344 memcpy(data,p,length);
345 /* reattach data to object, after which it remains const */
350 /* ret->flags=ASN1_OBJECT_FLAG_DYNAMIC; we know it is dynamic */
353 if (a != NULL) (*a)=ret;
357 ASN1err(ASN1_F_C2I_ASN1_OBJECT,i);
358 if ((ret != NULL) && ((a == NULL) || (*a != ret)))
359 ASN1_OBJECT_free(ret);
363 ASN1_OBJECT *ASN1_OBJECT_new(void)
367 ret=(ASN1_OBJECT *)OPENSSL_malloc(sizeof(ASN1_OBJECT));
370 ASN1err(ASN1_F_ASN1_OBJECT_NEW,ERR_R_MALLOC_FAILURE);
378 ret->flags=ASN1_OBJECT_FLAG_DYNAMIC;
382 void ASN1_OBJECT_free(ASN1_OBJECT *a)
384 if (a == NULL) return;
385 if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_STRINGS)
387 #ifndef CONST_STRICT /* disable purely for compile-time strict const checking. Doing this on a "real" compile will cause memory leaks */
388 if (a->sn != NULL) OPENSSL_free((void *)a->sn);
389 if (a->ln != NULL) OPENSSL_free((void *)a->ln);
393 if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_DATA)
395 if (a->data != NULL) OPENSSL_free((void *)a->data);
399 if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC)
403 ASN1_OBJECT *ASN1_OBJECT_create(int nid, unsigned char *data, int len,
404 const char *sn, const char *ln)
413 o.flags=ASN1_OBJECT_FLAG_DYNAMIC|ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|
414 ASN1_OBJECT_FLAG_DYNAMIC_DATA;
418 IMPLEMENT_STACK_OF(ASN1_OBJECT)
419 IMPLEMENT_ASN1_SET_OF(ASN1_OBJECT)