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git.ipfire.org Git - thirdparty/openssl.git/blob - apps/asn1pars.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.]
59 /* A nice addition from Dr Stephen Henson <shenson@bigfoot.com> to
60 * add the -strparse option which parses nested binary structures
67 #include <openssl/err.h>
68 #include <openssl/evp.h>
69 #include <openssl/x509.h>
70 #include <openssl/pem.h>
72 /* -inform arg - input format - default PEM (DER or PEM)
73 * -in arg - input file - default stdin
74 * -i - indent the details by depth
75 * -offset - where in the file to start
76 * -length - how many bytes to use
77 * -oid file - extra oid decription file
81 #define PROG asn1parse_main
83 int MAIN(int argc
, char **argv
)
85 int i
,badops
=0,offset
=0,ret
=1,j
;
86 unsigned int length
=0;
88 BIO
*in
=NULL
,*out
=NULL
,*b64
=NULL
, *derout
= NULL
;
89 int informat
,indent
=0;
90 char *infile
=NULL
,*str
=NULL
,*prog
,*oidfile
=NULL
, *derfile
=NULL
;
91 unsigned char *tmpbuf
;
101 if ((bio_err
=BIO_new(BIO_s_file())) != NULL
)
102 BIO_set_fp(bio_err
,stderr
,BIO_NOCLOSE
|BIO_FP_TEXT
);
107 if ((osk
=sk_new_null()) == NULL
)
109 BIO_printf(bio_err
,"Malloc failure\n");
114 if (strcmp(*argv
,"-inform") == 0)
116 if (--argc
< 1) goto bad
;
117 informat
=str2fmt(*(++argv
));
119 else if (strcmp(*argv
,"-in") == 0)
121 if (--argc
< 1) goto bad
;
124 else if (strcmp(*argv
,"-out") == 0)
126 if (--argc
< 1) goto bad
;
129 else if (strcmp(*argv
,"-i") == 0)
133 else if (strcmp(*argv
,"-oid") == 0)
135 if (--argc
< 1) goto bad
;
138 else if (strcmp(*argv
,"-offset") == 0)
140 if (--argc
< 1) goto bad
;
141 offset
= atoi(*(++argv
));
143 else if (strcmp(*argv
,"-length") == 0)
145 if (--argc
< 1) goto bad
;
146 length
= atoi(*(++argv
));
147 if (length
== 0) goto bad
;
149 else if (strcmp(*argv
,"-strparse") == 0)
151 if (--argc
< 1) goto bad
;
152 sk_push(osk
,*(++argv
));
156 BIO_printf(bio_err
,"unknown option %s\n",*argv
);
167 BIO_printf(bio_err
,"%s [options] <infile\n",prog
);
168 BIO_printf(bio_err
,"where options are\n");
169 BIO_printf(bio_err
," -inform arg input format - one of DER TXT PEM\n");
170 BIO_printf(bio_err
," -in arg input file\n");
171 BIO_printf(bio_err
," -offset arg offset into file\n");
172 BIO_printf(bio_err
," -length arg lenth of section in file\n");
173 BIO_printf(bio_err
," -i indent entries\n");
174 BIO_printf(bio_err
," -oid file file of extra oid definitions\n");
175 BIO_printf(bio_err
," -strparse offset\n");
176 BIO_printf(bio_err
," a series of these can be used to 'dig' into multiple\n");
177 BIO_printf(bio_err
," ASN1 blob wrappings\n");
178 BIO_printf(bio_err
," -out filename output DER encoding to file\n");
182 ERR_load_crypto_strings();
184 in
=BIO_new(BIO_s_file());
185 out
=BIO_new(BIO_s_file());
186 if ((in
== NULL
) || (out
== NULL
))
188 ERR_print_errors(bio_err
);
191 BIO_set_fp(out
,stdout
,BIO_NOCLOSE
|BIO_FP_TEXT
);
195 if (BIO_read_filename(in
,oidfile
) <= 0)
197 BIO_printf(bio_err
,"problems opening %s\n",oidfile
);
198 ERR_print_errors(bio_err
);
201 OBJ_create_objects(in
);
205 BIO_set_fp(in
,stdin
,BIO_NOCLOSE
);
208 if (BIO_read_filename(in
,infile
) <= 0)
216 if(!(derout
= BIO_new_file(derfile
, "wb"))) {
217 BIO_printf(bio_err
,"problems opening %s\n",derfile
);
218 ERR_print_errors(bio_err
);
223 if ((buf
=BUF_MEM_new()) == NULL
) goto end
;
224 if (!BUF_MEM_grow(buf
,BUFSIZ
*8)) goto end
; /* Pre-allocate :-) */
226 if (informat
== FORMAT_PEM
)
230 if ((b64
=BIO_new(BIO_f_base64())) == NULL
)
241 if (!BUF_MEM_grow(buf
,(int)num
+BUFSIZ
)) goto end
;
242 i
=BIO_read(in
,&(buf
->data
[num
]),BUFSIZ
);
248 /* If any structs to parse go through in sequence */
252 tmpbuf
=(unsigned char *)str
;
254 for (i
=0; i
<sk_num(osk
); i
++)
257 j
=atoi(sk_value(osk
,i
));
260 BIO_printf(bio_err
,"'%s' is an invalid number\n",sk_value(osk
,i
));
266 at
= d2i_ASN1_TYPE(NULL
,&tmpbuf
,tmplen
);
267 ASN1_TYPE_free(atmp
);
270 BIO_printf(bio_err
,"Error parsing structure\n");
271 ERR_print_errors(bio_err
);
274 /* hmm... this is a little evil but it works */
275 tmpbuf
=at
->value
.asn1_string
->data
;
276 tmplen
=at
->value
.asn1_string
->length
;
282 if (length
== 0) length
=(unsigned int)num
;
284 if(BIO_write(derout
, str
+ offset
, length
) != length
) {
285 BIO_printf(bio_err
, "Error writing output\n");
286 ERR_print_errors(bio_err
);
290 if (!ASN1_parse(out
,(unsigned char *)&(str
[offset
]),length
,indent
))
292 ERR_print_errors(bio_err
);
298 if (in
!= NULL
) BIO_free(in
);
299 if (out
!= NULL
) BIO_free(out
);
300 if (b64
!= NULL
) BIO_free(b64
);
302 ERR_print_errors(bio_err
);
303 if (buf
!= NULL
) BUF_MEM_free(buf
);
304 if (at
!= NULL
) ASN1_TYPE_free(at
);
305 if (osk
!= NULL
) sk_free(osk
);