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 description file
81 #define PROG asn1parse_main
83 int MAIN(int, char **);
85 int MAIN(int argc, char **argv)
87 int i,badops=0,offset=0,ret=1,j;
88 unsigned int length=0;
90 BIO *in=NULL,*out=NULL,*b64=NULL, *derout = NULL;
91 int informat,indent=0, noout = 0, dump = 0;
92 char *infile=NULL,*str=NULL,*prog,*oidfile=NULL, *derfile=NULL;
93 unsigned char *tmpbuf;
103 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
104 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
106 if (!load_config(bio_err, NULL))
112 if ((osk=sk_new_null()) == NULL)
114 BIO_printf(bio_err,"Memory allocation failure\n");
119 if (strcmp(*argv,"-inform") == 0)
121 if (--argc < 1) goto bad;
122 informat=str2fmt(*(++argv));
124 else if (strcmp(*argv,"-in") == 0)
126 if (--argc < 1) goto bad;
129 else if (strcmp(*argv,"-out") == 0)
131 if (--argc < 1) goto bad;
134 else if (strcmp(*argv,"-i") == 0)
138 else if (strcmp(*argv,"-noout") == 0) noout = 1;
139 else if (strcmp(*argv,"-oid") == 0)
141 if (--argc < 1) goto bad;
144 else if (strcmp(*argv,"-offset") == 0)
146 if (--argc < 1) goto bad;
147 offset= atoi(*(++argv));
149 else if (strcmp(*argv,"-length") == 0)
151 if (--argc < 1) goto bad;
152 length= atoi(*(++argv));
153 if (length == 0) goto bad;
155 else if (strcmp(*argv,"-dump") == 0)
159 else if (strcmp(*argv,"-dlimit") == 0)
161 if (--argc < 1) goto bad;
162 dump= atoi(*(++argv));
163 if (dump <= 0) goto bad;
165 else if (strcmp(*argv,"-strparse") == 0)
167 if (--argc < 1) goto bad;
168 sk_push(osk,*(++argv));
172 BIO_printf(bio_err,"unknown option %s\n",*argv);
183 BIO_printf(bio_err,"%s [options] <infile\n",prog);
184 BIO_printf(bio_err,"where options are\n");
185 BIO_printf(bio_err," -inform arg input format - one of DER TXT PEM\n");
186 BIO_printf(bio_err," -in arg input file\n");
187 BIO_printf(bio_err," -out arg output file (output format is always DER\n");
188 BIO_printf(bio_err," -noout arg don't produce any output\n");
189 BIO_printf(bio_err," -offset arg offset into file\n");
190 BIO_printf(bio_err," -length arg length of section in file\n");
191 BIO_printf(bio_err," -i indent entries\n");
192 BIO_printf(bio_err," -dump dump unknown data in hex form\n");
193 BIO_printf(bio_err," -dlimit arg dump the first arg bytes of unknown data in hex form\n");
194 BIO_printf(bio_err," -oid file file of extra oid definitions\n");
195 BIO_printf(bio_err," -strparse offset\n");
196 BIO_printf(bio_err," a series of these can be used to 'dig' into multiple\n");
197 BIO_printf(bio_err," ASN1 blob wrappings\n");
201 ERR_load_crypto_strings();
203 in=BIO_new(BIO_s_file());
204 out=BIO_new(BIO_s_file());
205 if ((in == NULL) || (out == NULL))
207 ERR_print_errors(bio_err);
210 BIO_set_fp(out,stdout,BIO_NOCLOSE|BIO_FP_TEXT);
211 #ifdef OPENSSL_SYS_VMS
213 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
214 out = BIO_push(tmpbio, out);
220 if (BIO_read_filename(in,oidfile) <= 0)
222 BIO_printf(bio_err,"problems opening %s\n",oidfile);
223 ERR_print_errors(bio_err);
226 OBJ_create_objects(in);
230 BIO_set_fp(in,stdin,BIO_NOCLOSE);
233 if (BIO_read_filename(in,infile) <= 0)
241 if(!(derout = BIO_new_file(derfile, "wb"))) {
242 BIO_printf(bio_err,"problems opening %s\n",derfile);
243 ERR_print_errors(bio_err);
248 if ((buf=BUF_MEM_new()) == NULL) goto end;
249 if (!BUF_MEM_grow(buf,BUFSIZ*8)) goto end; /* Pre-allocate :-) */
251 if (informat == FORMAT_PEM)
255 if ((b64=BIO_new(BIO_f_base64())) == NULL)
266 if (!BUF_MEM_grow(buf,(int)num+BUFSIZ)) goto end;
267 i=BIO_read(in,&(buf->data[num]),BUFSIZ);
273 /* If any structs to parse go through in sequence */
277 tmpbuf=(unsigned char *)str;
279 for (i=0; i<sk_num(osk); i++)
282 j=atoi(sk_value(osk,i));
285 BIO_printf(bio_err,"'%s' is an invalid number\n",sk_value(osk,i));
291 at = d2i_ASN1_TYPE(NULL,&tmpbuf,tmplen);
292 ASN1_TYPE_free(atmp);
295 BIO_printf(bio_err,"Error parsing structure\n");
296 ERR_print_errors(bio_err);
299 /* hmm... this is a little evil but it works */
300 tmpbuf=at->value.asn1_string->data;
301 tmplen=at->value.asn1_string->length;
307 if (length == 0) length=(unsigned int)num;
309 if(BIO_write(derout, str + offset, length) != (int)length) {
310 BIO_printf(bio_err, "Error writing output\n");
311 ERR_print_errors(bio_err);
316 !ASN1_parse_dump(out,(unsigned char *)&(str[offset]),length,
319 ERR_print_errors(bio_err);
325 if (in != NULL) BIO_free(in);
326 if (out != NULL) BIO_free_all(out);
327 if (b64 != NULL) BIO_free(b64);
329 ERR_print_errors(bio_err);
330 if (buf != NULL) BUF_MEM_free(buf);
331 if (at != NULL) ASN1_TYPE_free(at);
332 if (osk != NULL) sk_free(osk);