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
83 /* Minimum buffer size to be used */
84 #define MIN_BUFFER 256
86 int MAIN(int, char **);
88 static int do_generate(BIO *bio, char *genstr, char *genconf, BUF_MEM *buf);
90 int MAIN(int argc, char **argv)
92 int i,badops=0,offset=0,ret=1,j;
93 unsigned int length=0;
95 BIO *in=NULL,*out=NULL,*b64=NULL, *derout = NULL;
96 int informat,indent=0, noout = 0, dump = 0, strictpem = 0;
97 char *infile=NULL,*str=NULL,*prog,*oidfile=NULL, *derfile=NULL;
98 char *genstr=NULL, *genconf=NULL;
99 unsigned char *tmpbuf;
100 const unsigned char *ctmpbuf;
102 STACK_OF(OPENSSL_STRING) *osk=NULL;
110 if ((bio_err=BIO_new(BIO_s_file())) != NULL)
111 BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);
113 if (!load_config(bio_err, NULL))
119 if ((osk=sk_OPENSSL_STRING_new_null()) == NULL)
121 BIO_printf(bio_err,"Memory allocation failure\n");
126 if (strcmp(*argv,"-inform") == 0)
128 if (--argc < 1) goto bad;
129 informat=str2fmt(*(++argv));
131 else if (strcmp(*argv,"-in") == 0)
133 if (--argc < 1) goto bad;
136 else if (strcmp(*argv,"-out") == 0)
138 if (--argc < 1) goto bad;
141 else if (strcmp(*argv,"-i") == 0)
145 else if (strcmp(*argv,"-noout") == 0) noout = 1;
146 else if (strcmp(*argv,"-oid") == 0)
148 if (--argc < 1) goto bad;
151 else if (strcmp(*argv,"-offset") == 0)
153 if (--argc < 1) goto bad;
154 offset= atoi(*(++argv));
156 else if (strcmp(*argv,"-length") == 0)
158 if (--argc < 1) goto bad;
159 length= atoi(*(++argv));
160 if (length == 0) goto bad;
162 else if (strcmp(*argv,"-dump") == 0)
166 else if (strcmp(*argv,"-dlimit") == 0)
168 if (--argc < 1) goto bad;
169 dump= atoi(*(++argv));
170 if (dump <= 0) goto bad;
172 else if (strcmp(*argv,"-strparse") == 0)
174 if (--argc < 1) goto bad;
175 sk_OPENSSL_STRING_push(osk,*(++argv));
177 else if (strcmp(*argv,"-genstr") == 0)
179 if (--argc < 1) goto bad;
182 else if (strcmp(*argv,"-genconf") == 0)
184 if (--argc < 1) goto bad;
187 else if (strcmp(*argv,"-strictpem") == 0)
190 informat = FORMAT_PEM;
194 BIO_printf(bio_err,"unknown option %s\n",*argv);
205 BIO_printf(bio_err,"%s [options] <infile\n",prog);
206 BIO_printf(bio_err,"where options are\n");
207 BIO_printf(bio_err," -inform arg input format - one of DER PEM\n");
208 BIO_printf(bio_err," -in arg input file\n");
209 BIO_printf(bio_err," -out arg output file (output format is always DER\n");
210 BIO_printf(bio_err," -noout arg don't produce any output\n");
211 BIO_printf(bio_err," -offset arg offset into file\n");
212 BIO_printf(bio_err," -length arg length of section in file\n");
213 BIO_printf(bio_err," -i indent entries\n");
214 BIO_printf(bio_err," -dump dump unknown data in hex form\n");
215 BIO_printf(bio_err," -dlimit arg dump the first arg bytes of unknown data in hex form\n");
216 BIO_printf(bio_err," -oid file file of extra oid definitions\n");
217 BIO_printf(bio_err," -strparse offset\n");
218 BIO_printf(bio_err," a series of these can be used to 'dig' into multiple\n");
219 BIO_printf(bio_err," ASN1 blob wrappings\n");
220 BIO_printf(bio_err," -genstr str string to generate ASN1 structure from\n");
221 BIO_printf(bio_err," -genconf file file to generate ASN1 structure from\n");
222 BIO_printf(bio_err," -strictpem do not attempt base64 decode outside PEM markers (-inform \n");
223 BIO_printf(bio_err," will be ignored)\n");
227 ERR_load_crypto_strings();
229 in=BIO_new(BIO_s_file());
230 out=BIO_new(BIO_s_file());
231 if ((in == NULL) || (out == NULL))
233 ERR_print_errors(bio_err);
236 BIO_set_fp(out,stdout,BIO_NOCLOSE|BIO_FP_TEXT);
237 #ifdef OPENSSL_SYS_VMS
239 BIO *tmpbio = BIO_new(BIO_f_linebuffer());
240 out = BIO_push(tmpbio, out);
246 if (BIO_read_filename(in,oidfile) <= 0)
248 BIO_printf(bio_err,"problems opening %s\n",oidfile);
249 ERR_print_errors(bio_err);
252 OBJ_create_objects(in);
256 BIO_set_fp(in,stdin,BIO_NOCLOSE);
259 if (BIO_read_filename(in,infile) <= 0)
267 if(!(derout = BIO_new_file(derfile, "wb"))) {
268 BIO_printf(bio_err,"problems opening %s\n",derfile);
269 ERR_print_errors(bio_err);
274 if ((buf=BUF_MEM_new()) == NULL) goto end;
275 if (!BUF_MEM_grow(buf,(BUFSIZ*8)<MIN_BUFFER?MIN_BUFFER:(BUFSIZ*8))) goto end; /* Pre-allocate :-) */
277 if (genstr || genconf)
279 num = do_generate(bio_err, genstr, genconf, buf);
282 ERR_print_errors(bio_err);
290 if (informat == FORMAT_PEM)
299 i=BIO_gets(in,buf->data,MIN_BUFFER-1);
303 BIO_printf(bio_err, "Error: Cannot find start line\n");
307 /* Strip trailing spaces etc */
310 while ((i >= 0) && (buf->data[i] <= ' '));
314 /* Check if we have a PEM BEGIN marker */
315 if (strncmp(buf->data,"-----BEGIN ",11) == 0)
317 if (strncmp(&(buf->data[i-5]),"-----",5) != 0)
326 if ((b64=BIO_new(BIO_f_base64())) == NULL)
337 if (!BUF_MEM_grow(buf,(int)num+BUFSIZ)) goto end;
338 i=BIO_read(in,&(buf->data[num]),BUFSIZ);
345 /* If any structs to parse go through in sequence */
347 if (sk_OPENSSL_STRING_num(osk))
349 tmpbuf=(unsigned char *)str;
351 for (i=0; i<sk_OPENSSL_STRING_num(osk); i++)
355 j=atoi(sk_OPENSSL_STRING_value(osk,i));
358 BIO_printf(bio_err,"'%s' is an invalid number\n",sk_OPENSSL_STRING_value(osk,i));
365 at = d2i_ASN1_TYPE(NULL,&ctmpbuf,tmplen);
366 ASN1_TYPE_free(atmp);
369 BIO_printf(bio_err,"Error parsing structure\n");
370 ERR_print_errors(bio_err);
373 typ = ASN1_TYPE_get(at);
374 if ((typ == V_ASN1_OBJECT)
375 || (typ == V_ASN1_NULL))
377 BIO_printf(bio_err, "Can't parse %s type\n",
378 typ == V_ASN1_NULL ? "NULL" : "OBJECT");
379 ERR_print_errors(bio_err);
382 /* hmm... this is a little evil but it works */
383 tmpbuf=at->value.asn1_string->data;
384 tmplen=at->value.asn1_string->length;
392 BIO_printf(bio_err, "Error: offset too large\n");
398 if ((length == 0) || ((long)length > num)) length=(unsigned int)num;
400 if(BIO_write(derout, str + offset, length) != (int)length) {
401 BIO_printf(bio_err, "Error writing output\n");
402 ERR_print_errors(bio_err);
407 !ASN1_parse_dump(out,(unsigned char *)&(str[offset]),length,
410 ERR_print_errors(bio_err);
416 if (in != NULL) BIO_free(in);
417 if (out != NULL) BIO_free_all(out);
418 if (b64 != NULL) BIO_free(b64);
420 ERR_print_errors(bio_err);
421 if (buf != NULL) BUF_MEM_free(buf);
422 if (at != NULL) ASN1_TYPE_free(at);
423 if (osk != NULL) sk_OPENSSL_STRING_free(osk);
429 static int do_generate(BIO *bio, char *genstr, char *genconf, BUF_MEM *buf)
435 ASN1_TYPE *atyp = NULL;
439 cnf = NCONF_new(NULL);
440 if (!NCONF_load(cnf, genconf, &errline))
443 genstr = NCONF_get_string(cnf, "default", "asn1");
446 BIO_printf(bio, "Can't find 'asn1' in '%s'\n", genconf);
451 atyp = ASN1_generate_nconf(genstr, cnf);
458 len = i2d_ASN1_TYPE(atyp, NULL);
463 if (!BUF_MEM_grow(buf,len))
466 p=(unsigned char *)buf->data;
468 i2d_ASN1_TYPE(atyp, &p);
470 ASN1_TYPE_free(atyp);
476 BIO_printf(bio, "Error on line %ld of config file '%s'\n",
479 BIO_printf(bio, "Error loading config file '%s'\n", genconf);
483 ASN1_TYPE_free(atyp);