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git.ipfire.org Git - thirdparty/openssl.git/blob - crypto/asn1/asn1_par.c
1 /* crypto/asn1/asn1_par.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.]
61 #include <openssl/buffer.h>
62 #include <openssl/objects.h>
63 #include <openssl/x509.h>
66 static int asn1_print_info(BIO
*bp
, int tag
, int xclass
,int constructed
,
68 static int asn1_parse2(BIO
*bp
, unsigned char **pp
, long length
,
69 int offset
, int depth
, int indent
);
71 static int asn1_print_info();
72 static int asn1_parse2();
75 static int asn1_print_info(BIO
*bp
, int tag
, int xclass
, int constructed
,
78 static const char fmt
[]="%-18s";
79 static const char fmt2
[]="%2d %-15s";
81 const char *p
,*p2
=NULL
;
83 if (constructed
& V_ASN1_CONSTRUCTED
)
87 if (BIO_write(bp
,p
,6) < 6) goto err
;
90 if (indent
> 128) indent
=128;
91 memset(str
,' ',indent
);
92 if (BIO_write(bp
,str
,indent
) < indent
) goto err
;
96 if ((xclass
& V_ASN1_PRIVATE
) == V_ASN1_PRIVATE
)
97 sprintf(str
,"priv [ %d ] ",tag
);
98 else if ((xclass
& V_ASN1_CONTEXT_SPECIFIC
) == V_ASN1_CONTEXT_SPECIFIC
)
99 sprintf(str
,"cont [ %d ]",tag
);
100 else if ((xclass
& V_ASN1_APPLICATION
) == V_ASN1_APPLICATION
)
101 sprintf(str
,"appl [ %d ]",tag
);
102 else if ((tag
== V_ASN1_EOC
) /* && (xclass == V_ASN1_UNIVERSAL) */)
104 else if (tag
== V_ASN1_BOOLEAN
)
106 else if (tag
== V_ASN1_INTEGER
)
108 else if (tag
== V_ASN1_ENUMERATED
)
110 else if (tag
== V_ASN1_BIT_STRING
)
112 else if (tag
== V_ASN1_OCTET_STRING
)
114 else if (tag
== V_ASN1_NULL
)
116 else if (tag
== V_ASN1_OBJECT
)
118 else if (tag
== V_ASN1_SEQUENCE
)
120 else if (tag
== V_ASN1_SET
)
122 else if (tag
== V_ASN1_PRINTABLESTRING
)
124 else if (tag
== V_ASN1_T61STRING
)
126 else if (tag
== V_ASN1_IA5STRING
)
128 else if (tag
== V_ASN1_UTCTIME
)
132 else if (tag
== V_ASN1_NUMERICSTRING
)
134 else if (tag
== V_ASN1_VIDEOTEXSTRING
)
136 else if (tag
== V_ASN1_GENERALIZEDTIME
)
138 else if (tag
== V_ASN1_GRAPHICSTRING
)
140 else if (tag
== V_ASN1_VISIBLESTRING
)
142 else if (tag
== V_ASN1_GENERALSTRING
)
144 else if (tag
== V_ASN1_UNIVERSALSTRING
)
146 else if (tag
== V_ASN1_BMPSTRING
)
153 if (BIO_printf(bp
,fmt2
,tag
,p2
) <= 0) goto err
;
157 if (BIO_printf(bp
,fmt
,p
) <= 0) goto err
;
164 int ASN1_parse(BIO
*bp
, unsigned char *pp
, long len
, int indent
)
166 return(asn1_parse2(bp
,&pp
,len
,0,0,indent
));
169 static int asn1_parse2(BIO
*bp
, unsigned char **pp
, long length
, int offset
,
170 int depth
, int indent
)
172 unsigned char *p
,*ep
,*tot
,*op
,*opp
;
174 int tag
,xclass
,ret
=0;
177 ASN1_OCTET_STRING
*os
=NULL
;
178 /* ASN1_BMPSTRING *bmp=NULL;*/
183 while ((p
< tot
) && (op
< p
))
186 j
=ASN1_get_object(&p
,&len
,&tag
,&xclass
,length
);
192 if (BIO_write(bp
,"Error in encoding\n",18) <= 0)
199 /* if j == 0x21 it is a constructed indefinite length object */
200 if (BIO_printf(bp
,"%5ld:",(long)offset
+(long)(op
- *pp
))
203 if (j
!= (V_ASN1_CONSTRUCTED
| 1))
205 if (BIO_printf(bp
,"d=%-2d hl=%ld l=%4ld ",
206 depth
,(long)hl
,len
) <= 0)
211 if (BIO_printf(bp
,"d=%-2d hl=%ld l=inf ",
212 depth
,(long)hl
) <= 0)
215 if (!asn1_print_info(bp
,tag
,xclass
,j
,(indent
)?depth
:0))
217 if (j
& V_ASN1_CONSTRUCTED
)
220 if (BIO_write(bp
,"\n",1) <= 0) goto end
;
224 "length is greater than %ld\n",length
);
228 if ((j
== 0x21) && (len
== 0))
232 r
=asn1_parse2(bp
,&p
,(long)(tot
-p
),
233 offset
+(p
- *pp
),depth
+1,
235 if (r
== 0) { ret
=0; goto end
; }
236 if ((r
== 2) || (p
>= tot
)) break;
242 r
=asn1_parse2(bp
,&p
,(long)len
,
243 offset
+(p
- *pp
),depth
+1,
245 if (r
== 0) { ret
=0; goto end
; }
248 else if (xclass
!= 0)
251 if (BIO_write(bp
,"\n",1) <= 0) goto end
;
256 if ( (tag
== V_ASN1_PRINTABLESTRING
) ||
257 (tag
== V_ASN1_T61STRING
) ||
258 (tag
== V_ASN1_IA5STRING
) ||
259 (tag
== V_ASN1_VISIBLESTRING
) ||
260 (tag
== V_ASN1_UTCTIME
) ||
261 (tag
== V_ASN1_GENERALIZEDTIME
))
263 if (BIO_write(bp
,":",1) <= 0) goto end
;
265 BIO_write(bp
,(char *)p
,(int)len
)
269 else if (tag
== V_ASN1_OBJECT
)
272 if (d2i_ASN1_OBJECT(&o
,&opp
,len
+hl
) != NULL
)
274 if (BIO_write(bp
,":",1) <= 0) goto end
;
275 i2a_ASN1_OBJECT(bp
,o
);
279 if (BIO_write(bp
,":BAD OBJECT",11) <= 0)
283 else if (tag
== V_ASN1_BOOLEAN
)
288 ii
=d2i_ASN1_BOOLEAN(NULL
,&opp
,len
+hl
);
291 if (BIO_write(bp
,"Bad boolean\n",12))
294 BIO_printf(bp
,":%d",ii
);
296 else if (tag
== V_ASN1_BMPSTRING
)
298 /* do the BMP thang */
300 else if (tag
== V_ASN1_OCTET_STRING
)
305 os
=d2i_ASN1_OCTET_STRING(NULL
,&opp
,len
+hl
);
309 for (i
=0; i
<os
->length
; i
++)
311 if (( (opp
[i
] < ' ') &&
321 if (printable
&& (os
->length
> 0))
323 if (BIO_write(bp
,":",1) <= 0)
325 if (BIO_write(bp
,(char *)opp
,
329 ASN1_OCTET_STRING_free(os
);
333 else if (tag
== V_ASN1_INTEGER
)
339 bs
=d2i_ASN1_INTEGER(NULL
,&opp
,len
+hl
);
342 if (BIO_write(bp
,":",1) <= 0) goto end
;
343 if (bs
->type
== V_ASN1_NEG_INTEGER
)
344 if (BIO_write(bp
,"-",1) <= 0)
346 for (i
=0; i
<bs
->length
; i
++)
348 if (BIO_printf(bp
,"%02X",
354 if (BIO_write(bp
,"00",2) <= 0)
360 if (BIO_write(bp
,"BAD INTEGER",11) <= 0)
363 ASN1_INTEGER_free(bs
);
365 else if (tag
== V_ASN1_ENUMERATED
)
371 bs
=d2i_ASN1_ENUMERATED(NULL
,&opp
,len
+hl
);
374 if (BIO_write(bp
,":",1) <= 0) goto end
;
375 if (bs
->type
== V_ASN1_NEG_ENUMERATED
)
376 if (BIO_write(bp
,"-",1) <= 0)
378 for (i
=0; i
<bs
->length
; i
++)
380 if (BIO_printf(bp
,"%02X",
386 if (BIO_write(bp
,"00",2) <= 0)
392 if (BIO_write(bp
,"BAD ENUMERATED",11) <= 0)
395 ASN1_ENUMERATED_free(bs
);
400 if (BIO_write(bp
,"\n",1) <= 0) goto end
;
403 if ((tag
== V_ASN1_EOC
) && (xclass
== 0))
405 ret
=2; /* End of sequence */
413 if (o
!= NULL
) ASN1_OBJECT_free(o
);
414 if (os
!= NULL
) ASN1_OCTET_STRING_free(os
);