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 <steve@openssl.org> 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
84 int MAIN(int, char **);
86 static int do_generate(BIO *bio, char *genstr, char *genconf, BUF_MEM *buf);
88 int MAIN(int argc, char **argv)
90 int i,badops=0,offset=0,ret=1,j;
91 unsigned int length=0;
93 BIO *in=NULL,*out=NULL,*b64=NULL, *derout = NULL;
94 int informat,indent=0, noout = 0, dump = 0, strictpem = 0;
95 char *infile=NULL,*str=NULL,*prog,*oidfile=NULL, *derfile=NULL, *name=NULL, *header=NULL;
96 char *genstr=NULL, *genconf=NULL;
97 unsigned char *tmpbuf;
98 const unsigned char *ctmpbuf;
100 STACK_OF(OPENSSL_STRING) *osk=NULL;
108 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
109 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
111 if (!load_config(bio_err, NULL))
117 if ((osk=sk_OPENSSL_STRING_new_null()) == NULL)
119 BIO_printf(bio_err,"Memory allocation failure\n");
124 if (strcmp(*argv,"-inform") == 0)
126 if (--argc < 1) goto bad;
127 informat=str2fmt(*(++argv));
129 else if (strcmp(*argv,"-in") == 0)
131 if (--argc < 1) goto bad;
134 else if (strcmp(*argv,"-out") == 0)
136 if (--argc < 1) goto bad;
139 else if (strcmp(*argv,"-i") == 0)
143 else if (strcmp(*argv,"-noout") == 0) noout = 1;
144 else if (strcmp(*argv,"-oid") == 0)
146 if (--argc < 1) goto bad;
149 else if (strcmp(*argv,"-offset") == 0)
151 if (--argc < 1) goto bad;
152 offset= atoi(*(++argv));
154 else if (strcmp(*argv,"-length") == 0)
156 if (--argc < 1) goto bad;
157 length= atoi(*(++argv));
158 if (length == 0) goto bad;
160 else if (strcmp(*argv,"-dump") == 0)
164 else if (strcmp(*argv,"-dlimit") == 0)
166 if (--argc < 1) goto bad;
167 dump= atoi(*(++argv));
168 if (dump <= 0) goto bad;
170 else if (strcmp(*argv,"-strparse") == 0)
172 if (--argc < 1) goto bad;
173 sk_OPENSSL_STRING_push(osk,*(++argv));
175 else if (strcmp(*argv,"-genstr") == 0)
177 if (--argc < 1) goto bad;
180 else if (strcmp(*argv,"-genconf") == 0)
182 if (--argc < 1) goto bad;
185 else if (strcmp(*argv,"-strictpem") == 0)
188 informat = FORMAT_PEM;
192 BIO_printf(bio_err,"unknown option %s\n",*argv);
203 BIO_printf(bio_err,"%s [options] <infile\n",prog);
204 BIO_printf(bio_err,"where options are\n");
205 BIO_printf(bio_err," -inform arg input format - one of DER PEM\n");
206 BIO_printf(bio_err," -in arg input file\n");
207 BIO_printf(bio_err," -out arg output file (output format is always DER\n");
208 BIO_printf(bio_err," -noout arg don't produce any output\n");
209 BIO_printf(bio_err," -offset arg offset into file\n");
210 BIO_printf(bio_err," -length arg length of section in file\n");
211 BIO_printf(bio_err," -i indent entries\n");
212 BIO_printf(bio_err," -dump dump unknown data in hex form\n");
213 BIO_printf(bio_err," -dlimit arg dump the first arg bytes of unknown data in hex form\n");
214 BIO_printf(bio_err," -oid file file of extra oid definitions\n");
215 BIO_printf(bio_err," -strparse offset\n");
216 BIO_printf(bio_err," a series of these can be used to 'dig' into multiple\n");
217 BIO_printf(bio_err," ASN1 blob wrappings\n");
218 BIO_printf(bio_err," -genstr str string to generate ASN1 structure from\n");
219 BIO_printf(bio_err," -genconf file file to generate ASN1 structure from\n");
220 BIO_printf(bio_err," -strictpem do not attempt base64 decode outside PEM markers (-inform \n");
221 BIO_printf(bio_err," will be ignored)\n");
225 ERR_load_crypto_strings();
227 in=BIO_new(BIO_s_file());
228 out=BIO_new(BIO_s_file());
229 if ((in == NULL) || (out == NULL))
231 ERR_print_errors(bio_err);
234 BIO_set_fp(out,stdout,BIO_NOCLOSE|BIO_FP_TEXT);
235 #ifdef OPENSSL_SYS_VMS
237 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
238 out = BIO_push(tmpbio, out);
244 if (BIO_read_filename(in,oidfile) <= 0)
246 BIO_printf(bio_err,"problems opening %s\n",oidfile);
247 ERR_print_errors(bio_err);
250 OBJ_create_objects(in);
254 BIO_set_fp(in,stdin,BIO_NOCLOSE);
257 if (BIO_read_filename(in,infile) <= 0)
265 if(!(derout = BIO_new_file(derfile, "wb"))) {
266 BIO_printf(bio_err,"problems opening %s\n",derfile);
267 ERR_print_errors(bio_err);
274 if(PEM_read_bio(in, &name, &header, (unsigned char **)&str, &num) != 1)
276 BIO_printf(bio_err,"Error reading PEM file\n");
277 ERR_print_errors(bio_err);
284 if ((buf=BUF_MEM_new()) == NULL) goto end;
285 if (!BUF_MEM_grow(buf,BUFSIZ*8)) goto end; /* Pre-allocate :-) */
287 if (genstr || genconf)
289 num = do_generate(bio_err, genstr, genconf, buf);
292 ERR_print_errors(bio_err);
300 if (informat == FORMAT_PEM)
304 if ((b64=BIO_new(BIO_f_base64())) == NULL)
315 if (!BUF_MEM_grow(buf,(int)num+BUFSIZ)) goto end;
316 i=BIO_read(in,&(buf->data[num]),BUFSIZ);
325 /* If any structs to parse go through in sequence */
327 if (sk_OPENSSL_STRING_num(osk))
329 tmpbuf=(unsigned char *)str;
331 for (i=0; i<sk_OPENSSL_STRING_num(osk); i++)
335 j=atoi(sk_OPENSSL_STRING_value(osk,i));
338 BIO_printf(bio_err,"'%s' is an invalid number\n",sk_OPENSSL_STRING_value(osk,i));
345 at = d2i_ASN1_TYPE(NULL,&ctmpbuf,tmplen);
346 ASN1_TYPE_free(atmp);
349 BIO_printf(bio_err,"Error parsing structure\n");
350 ERR_print_errors(bio_err);
353 typ = ASN1_TYPE_get(at);
354 if ((typ == V_ASN1_OBJECT)
355 || (typ == V_ASN1_NULL))
357 BIO_printf(bio_err, "Can't parse %s type\n",
358 typ == V_ASN1_NULL ? "NULL" : "OBJECT");
359 ERR_print_errors(bio_err);
362 /* hmm... this is a little evil but it works */
363 tmpbuf=at->value.asn1_string->data;
364 tmplen=at->value.asn1_string->length;
372 BIO_printf(bio_err, "Error: offset too large\n");
378 if ((length == 0) || ((long)length > num)) length=(unsigned int)num;
380 if(BIO_write(derout, str + offset, length) != (int)length) {
381 BIO_printf(bio_err, "Error writing output\n");
382 ERR_print_errors(bio_err);
387 !ASN1_parse_dump(out,(unsigned char *)&(str[offset]),length,
390 ERR_print_errors(bio_err);
396 if (in != NULL) BIO_free(in);
397 if (out != NULL) BIO_free_all(out);
398 if (b64 != NULL) BIO_free(b64);
400 ERR_print_errors(bio_err);
401 if (buf != NULL) BUF_MEM_free(buf);
402 if (name != NULL) OPENSSL_free(name);
403 if (header != NULL) OPENSSL_free(header);
404 if (strictpem && str != NULL) OPENSSL_free(str);
405 if (at != NULL) ASN1_TYPE_free(at);
406 if (osk != NULL) sk_OPENSSL_STRING_free(osk);
412 static int do_generate(BIO *bio, char *genstr, char *genconf, BUF_MEM *buf)
418 ASN1_TYPE *atyp = NULL;
422 cnf = NCONF_new(NULL);
423 if (!NCONF_load(cnf, genconf, &errline))
426 genstr = NCONF_get_string(cnf, "default", "asn1");
429 BIO_printf(bio, "Can't find 'asn1' in '%s'\n", genconf);
434 atyp = ASN1_generate_nconf(genstr, cnf);
441 len = i2d_ASN1_TYPE(atyp, NULL);
446 if (!BUF_MEM_grow(buf,len))
449 p=(unsigned char *)buf->data;
451 i2d_ASN1_TYPE(atyp, &p);
453 ASN1_TYPE_free(atyp);
459 BIO_printf(bio, "Error on line %ld of config file '%s'\n",
462 BIO_printf(bio, "Error loading config file '%s'\n", genconf);
466 ASN1_TYPE_free(atyp);