1 /* crypto/asn1/a_bytes.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.]
63 /* ASN1err(ASN1_F_D2I_ASN1_TYPE_BYTES,ASN1_R_WRONG_TYPE);
64 * ASN1err(ASN1_F_ASN1_COLLATE_PRIMATIVE,ASN1_R_WRONG_TAG);
67 static unsigned long tag2bit[32]={
68 0, 0, 0, B_ASN1_BIT_STRING, /* tags 0 - 3 */
69 B_ASN1_OCTET_STRING, 0, 0, B_ASN1_UNKNOWN,/* tags 4- 7 */
70 B_ASN1_UNKNOWN, B_ASN1_UNKNOWN, B_ASN1_UNKNOWN, B_ASN1_UNKNOWN,/* tags 8-11 */
71 B_ASN1_UTF8STRING,B_ASN1_UNKNOWN,B_ASN1_UNKNOWN,B_ASN1_UNKNOWN,/* tags 12-15 */
72 0, 0, B_ASN1_NUMERICSTRING,B_ASN1_PRINTABLESTRING,
73 B_ASN1_T61STRING,B_ASN1_VIDEOTEXSTRING,B_ASN1_IA5STRING,0,
74 0,B_ASN1_GRAPHICSTRING,B_ASN1_ISO64STRING,B_ASN1_GENERALSTRING,
75 B_ASN1_UNIVERSALSTRING,B_ASN1_UNKNOWN,B_ASN1_BMPSTRING,B_ASN1_UNKNOWN,
79 static int asn1_collate_primative(ASN1_STRING *a, ASN1_CTX *c);
81 static int asn1_collate_primative();
84 /* type is a 'bitmap' of acceptable string types.
86 ASN1_STRING *d2i_ASN1_type_bytes(ASN1_STRING **a, unsigned char **pp,
87 long length, int type)
89 ASN1_STRING *ret=NULL;
96 inf=ASN1_get_object(&p,&len,&tag,&xclass,length);
97 if (inf & 0x80) goto err;
101 i=ASN1_R_TAG_VALUE_TOO_HIGH;;
104 if (!(tag2bit[tag] & type))
110 /* If a bit-string, exit early */
111 if (tag == V_ASN1_BIT_STRING)
112 return(d2i_ASN1_BIT_STRING(a,pp,length));
114 if ((a == NULL) || ((*a) == NULL))
116 if ((ret=ASN1_STRING_new()) == NULL) return(NULL);
123 s=(unsigned char *)Malloc((int)len+1);
126 i=ERR_R_MALLOC_FAILURE;
129 memcpy(s,p,(int)len);
136 if (ret->data != NULL) Free((char *)ret->data);
137 ret->length=(int)len;
140 if (a != NULL) (*a)=ret;
144 ASN1err(ASN1_F_D2I_ASN1_TYPE_BYTES,i);
145 if ((ret != NULL) && ((a == NULL) || (*a != ret)))
146 ASN1_STRING_free(ret);
150 int i2d_ASN1_bytes(ASN1_STRING *a, unsigned char **pp, int tag, int xclass)
152 int ret,r,constructed;
155 if (a == NULL) return(0);
157 if (tag == V_ASN1_BIT_STRING)
158 return(i2d_ASN1_BIT_STRING(a,pp));
161 r=ASN1_object_size(0,ret,tag);
162 if (pp == NULL) return(r);
165 if ((tag == V_ASN1_SEQUENCE) || (tag == V_ASN1_SET))
169 ASN1_put_object(&p,constructed,ret,tag,xclass);
170 memcpy(p,a->data,a->length);
176 ASN1_STRING *d2i_ASN1_bytes(ASN1_STRING **a, unsigned char **pp, long length,
177 int Ptag, int Pclass)
179 ASN1_STRING *ret=NULL;
185 if ((a == NULL) || ((*a) == NULL))
187 if ((ret=ASN1_STRING_new()) == NULL) return(NULL);
193 inf=ASN1_get_object(&p,&len,&tag,&xclass,length);
196 i=ASN1_R_BAD_OBJECT_HEADER;
206 if (inf & V_ASN1_CONSTRUCTED)
216 c.max=(length == 0)?0:(p+length);
217 if (!asn1_collate_primative(ret,&c))
228 if ((ret->length < len) || (ret->data == NULL))
230 if (ret->data != NULL) Free((char *)ret->data);
231 s=(unsigned char *)Malloc((int)len);
234 i=ERR_R_MALLOC_FAILURE;
240 memcpy(s,p,(int)len);
246 if (ret->data != NULL) Free((char *)ret->data);
249 ret->length=(int)len;
254 if (a != NULL) (*a)=ret;
258 if ((ret != NULL) && ((a == NULL) || (*a != ret)))
259 ASN1_STRING_free(ret);
260 ASN1err(ASN1_F_D2I_ASN1_BYTES,i);
265 /* We are about to parse 0..n d2i_ASN1_bytes objects, we are to collapes
266 * them into the one struture that is then returned */
267 /* There have been a few bug fixes for this function from
268 * Paul Keogh <paul.keogh@sse.ie>, many thanks to him */
269 static int asn1_collate_primative(ASN1_STRING *a, ASN1_CTX *c)
271 ASN1_STRING *os=NULL;
281 c->error=ERR_R_PASSED_NULL_PARAMETER;
290 c->eos=ASN1_check_infinite_end(&c->p,
291 (long)(c->max-c->p));
296 if (c->slen <= 0) break;
300 if (d2i_ASN1_bytes(&os,&c->p,c->max-c->p,c->tag,c->xclass)
303 c->error=ERR_R_ASN1_LIB;
307 if (!BUF_MEM_grow(&b,num+os->length))
309 c->error=ERR_R_BUF_LIB;
312 memcpy(&(b.data[num]),os->data,os->length);
314 c->slen-=(c->p-c->q);
318 if (!asn1_Finish(c)) goto err;
321 if (a->data != NULL) Free(a->data);
322 a->data=(unsigned char *)b.data;
323 if (os != NULL) ASN1_STRING_free(os);
326 ASN1err(ASN1_F_ASN1_COLLATE_PRIMATIVE,c->error);
327 if (os != NULL) ASN1_STRING_free(os);
328 if (b.data != NULL) Free(b.data);