1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.] */
57 #include <openssl/asn1.h>
61 #include <openssl/err.h>
62 #include <openssl/mem.h>
63 #include <openssl/obj.h>
66 int i2d_ASN1_OBJECT(ASN1_OBJECT *a, unsigned char **pp)
71 if ((a == NULL) || (a->data == NULL)) return(0);
73 objsize = ASN1_object_size(0,a->length,V_ASN1_OBJECT);
74 if (pp == NULL) return objsize;
77 ASN1_put_object(&p,0,a->length,V_ASN1_OBJECT,V_ASN1_UNIVERSAL);
78 memcpy(p,a->data,a->length);
85 int a2d_ASN1_OBJECT(unsigned char *out, int olen, const char *buf, int num)
87 int i,first,len=0,c, use_bn;
88 char ftmp[24], *tmp = ftmp;
89 int tmpsize = sizeof ftmp;
102 if ((c >= '0') && (c <= '2'))
108 OPENSSL_PUT_ERROR(ASN1, a2d_ASN1_OBJECT, ASN1_R_FIRST_NUM_TOO_LARGE);
114 OPENSSL_PUT_ERROR(ASN1, a2d_ASN1_OBJECT, ASN1_R_MISSING_SECOND_NUMBER);
122 if ((c != '.') && (c != ' '))
124 OPENSSL_PUT_ERROR(ASN1, a2d_ASN1_OBJECT, ASN1_R_INVALID_SEPARATOR);
134 if ((c == ' ') || (c == '.'))
136 if ((c < '0') || (c > '9'))
138 OPENSSL_PUT_ERROR(ASN1, a2d_ASN1_OBJECT, ASN1_R_INVALID_DIGIT);
141 if (!use_bn && l >= ((ULONG_MAX - 80) / 10L))
146 if (!bl || !BN_set_word(bl, l))
151 if (!BN_mul_word(bl, 10L)
152 || !BN_add_word(bl, c-'0'))
156 l=l*10L+(long)(c-'0');
160 if ((first < 2) && (l >= 40))
162 OPENSSL_PUT_ERROR(ASN1, a2d_ASN1_OBJECT, ASN1_R_SECOND_NUMBER_TOO_LARGE);
167 if (!BN_add_word(bl, first * 40))
177 blsize = BN_num_bits(bl);
178 blsize = (blsize + 6)/7;
179 if (blsize > tmpsize)
183 tmpsize = blsize + 32;
184 tmp = OPENSSL_malloc(tmpsize);
189 tmp[i++] = (unsigned char)BN_div_word(bl, 0x80L);
196 tmp[i++]=(unsigned char)l&0x7f;
206 OPENSSL_PUT_ERROR(ASN1, a2d_ASN1_OBJECT, ASN1_R_BUFFER_TOO_SMALL);
210 out[len++]=tmp[i]|0x80;
229 int i2t_ASN1_OBJECT(char *buf, int buf_len, ASN1_OBJECT *a)
231 return OBJ_obj2txt(buf, buf_len, a, 0);
234 int i2a_ASN1_OBJECT(BIO *bp, ASN1_OBJECT *a)
236 char buf[80], *p = buf;
239 if ((a == NULL) || (a->data == NULL))
240 return(BIO_write(bp,"NULL",4));
241 i=i2t_ASN1_OBJECT(buf,sizeof buf,a);
242 if (i > (int)(sizeof(buf) - 1))
244 p = OPENSSL_malloc(i + 1);
247 i2t_ASN1_OBJECT(p,i + 1,a);
250 return BIO_write(bp, "<INVALID>", 9);
257 ASN1_OBJECT *d2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
260 const unsigned char *p;
264 ASN1_OBJECT *ret = NULL;
266 inf=ASN1_get_object(&p,&len,&tag,&xclass,length);
269 i=ASN1_R_BAD_OBJECT_HEADER;
273 if (tag != V_ASN1_OBJECT)
275 i=ASN1_R_EXPECTING_AN_OBJECT;
278 ret = c2i_ASN1_OBJECT(a, &p, len);
282 OPENSSL_PUT_ERROR(ASN1, d2i_ASN1_OBJECT, i);
286 ASN1_OBJECT *c2i_ASN1_OBJECT(ASN1_OBJECT **a, const unsigned char **pp,
289 ASN1_OBJECT *ret=NULL;
290 const unsigned char *p;
294 /* Sanity check OID encoding.
295 * Need at least one content octet.
296 * MSB must be clear in the last octet.
297 * can't have leading 0x80 in subidentifiers, see: X.690 8.19.2
299 if (len <= 0 || len > INT_MAX || pp == NULL || (p = *pp) == NULL ||
302 OPENSSL_PUT_ERROR(ASN1, c2i_ASN1_OBJECT, ASN1_R_INVALID_OBJECT_ENCODING);
305 /* Now 0 < len <= INT_MAX, so the cast is safe. */
307 for (i = 0; i < length; i++, p++)
309 if (*p == 0x80 && (!i || !(p[-1] & 0x80)))
311 OPENSSL_PUT_ERROR(ASN1, c2i_ASN1_OBJECT, ASN1_R_INVALID_OBJECT_ENCODING);
316 /* only the ASN1_OBJECTs from the 'table' will have values
317 * for ->sn or ->ln */
318 if ((a == NULL) || ((*a) == NULL) ||
319 !((*a)->flags & ASN1_OBJECT_FLAG_DYNAMIC))
321 if ((ret=ASN1_OBJECT_new()) == NULL) return(NULL);
326 /* detach data from object */
327 data = (unsigned char *)ret->data;
329 /* once detached we can change it */
330 if ((data == NULL) || (ret->length < length))
333 if (data != NULL) OPENSSL_free(data);
334 data=(unsigned char *)OPENSSL_malloc(length);
336 { i=ERR_R_MALLOC_FAILURE; goto err; }
337 ret->flags|=ASN1_OBJECT_FLAG_DYNAMIC_DATA;
339 memcpy(data,p,length);
340 /* reattach data to object, after which it remains const */
345 /* ret->flags=ASN1_OBJECT_FLAG_DYNAMIC; we know it is dynamic */
348 if (a != NULL) (*a)=ret;
352 OPENSSL_PUT_ERROR(ASN1, c2i_ASN1_OBJECT, i);
353 if ((ret != NULL) && ((a == NULL) || (*a != ret)))
354 ASN1_OBJECT_free(ret);
358 ASN1_OBJECT *ASN1_OBJECT_new(void)
362 ret=(ASN1_OBJECT *)OPENSSL_malloc(sizeof(ASN1_OBJECT));
365 OPENSSL_PUT_ERROR(ASN1, ASN1_OBJECT_new, ERR_R_MALLOC_FAILURE);
373 ret->flags=ASN1_OBJECT_FLAG_DYNAMIC;
377 void ASN1_OBJECT_free(ASN1_OBJECT *a)
379 if (a == NULL) return;
380 if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_STRINGS)
382 #ifndef CONST_STRICT /* disable purely for compile-time strict const checking. Doing this on a "real" compile will cause memory leaks */
383 if (a->sn != NULL) OPENSSL_free((void *)a->sn);
384 if (a->ln != NULL) OPENSSL_free((void *)a->ln);
388 if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC_DATA)
390 if (a->data != NULL) OPENSSL_free((void *)a->data);
394 if (a->flags & ASN1_OBJECT_FLAG_DYNAMIC)
398 ASN1_OBJECT *ASN1_OBJECT_create(int nid, unsigned char *data, int len,
399 const char *sn, const char *ln)
408 o.flags=ASN1_OBJECT_FLAG_DYNAMIC|ASN1_OBJECT_FLAG_DYNAMIC_STRINGS|
409 ASN1_OBJECT_FLAG_DYNAMIC_DATA;