[thirdparty/openssl.git] / apps / asn1pars.c

/* apps/asn1pars.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 * 
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 * 
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from 
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 * 
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * 
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

/* A nice addition from Dr Stephen Henson <steve@openssl.org> to 
 * add the -strparse option which parses nested binary structures
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "apps.h"
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/pem.h>

/* -inform arg	- input format - default PEM (DER or PEM)
 * -in arg	- input file - default stdin
 * -i		- indent the details by depth
 * -offset	- where in the file to start
 * -length	- how many bytes to use
 * -oid file	- extra oid description file
 */

#undef PROG
#define PROG	asn1parse_main

int MAIN(int, char **);

static int do_generate(BIO *bio, char *genstr, char *genconf, BUF_MEM *buf);

int MAIN(int argc, char **argv)
	{
	int i,badops=0,offset=0,ret=1,j;
	unsigned int length=0;
	long num,tmplen;
	BIO *in=NULL,*out=NULL,*b64=NULL, *derout = NULL;
	int informat,indent=0, noout = 0, dump = 0;
	char *infile=NULL,*str=NULL,*prog,*oidfile=NULL, *derfile=NULL;
	char *genstr=NULL, *genconf=NULL;
	unsigned char *tmpbuf;
	const unsigned char *ctmpbuf;
	BUF_MEM *buf=NULL;
	STACK_OF(STRING) *osk=NULL;
	ASN1_TYPE *at=NULL;

	informat=FORMAT_PEM;

	apps_startup();

	if (bio_err == NULL)
		if ((bio_err=BIO_new(BIO_s_file())) != NULL)
			BIO_set_fp(bio_err,stderr,BIO_NOCLOSE|BIO_FP_TEXT);

	if (!load_config(bio_err, NULL))
		goto end;

	prog=argv[0];
	argc--;
	argv++;
	if ((osk=sk_STRING_new_null()) == NULL)
		{
		BIO_printf(bio_err,"Memory allocation failure\n");
		goto end;
		}
	while (argc >= 1)
		{
		if 	(strcmp(*argv,"-inform") == 0)
			{
			if (--argc < 1) goto bad;
			informat=str2fmt(*(++argv));
			}
		else if (strcmp(*argv,"-in") == 0)
			{
			if (--argc < 1) goto bad;
			infile= *(++argv);
			}
		else if (strcmp(*argv,"-out") == 0)
			{
			if (--argc < 1) goto bad;
			derfile= *(++argv);
			}
		else if (strcmp(*argv,"-i") == 0)
			{
			indent=1;
			}
		else if (strcmp(*argv,"-noout") == 0) noout = 1;
		else if (strcmp(*argv,"-oid") == 0)
			{
			if (--argc < 1) goto bad;
			oidfile= *(++argv);
			}
		else if (strcmp(*argv,"-offset") == 0)
			{
			if (--argc < 1) goto bad;
			offset= atoi(*(++argv));
			}
		else if (strcmp(*argv,"-length") == 0)
			{
			if (--argc < 1) goto bad;
			length= atoi(*(++argv));
			if (length == 0) goto bad;
			}
		else if (strcmp(*argv,"-dump") == 0)
			{
			dump= -1;
			}
		else if (strcmp(*argv,"-dlimit") == 0)
			{
			if (--argc < 1) goto bad;
			dump= atoi(*(++argv));
			if (dump <= 0) goto bad;
			}
		else if (strcmp(*argv,"-strparse") == 0)
			{
			if (--argc < 1) goto bad;
			sk_STRING_push(osk,*(++argv));
			}
		else if (strcmp(*argv,"-genstr") == 0)
			{
			if (--argc < 1) goto bad;
			genstr= *(++argv);
			}
		else if (strcmp(*argv,"-genconf") == 0)
			{
			if (--argc < 1) goto bad;
			genconf= *(++argv);
			}
		else
			{
			BIO_printf(bio_err,"unknown option %s\n",*argv);
			badops=1;
			break;
			}
		argc--;
		argv++;
		}

	if (badops)
		{
bad:
		BIO_printf(bio_err,"%s [options] <infile\n",prog);
		BIO_printf(bio_err,"where options are\n");
		BIO_printf(bio_err," -inform arg   input format - one of DER PEM\n");
		BIO_printf(bio_err," -in arg       input file\n");
		BIO_printf(bio_err," -out arg      output file (output format is always DER\n");
		BIO_printf(bio_err," -noout arg    don't produce any output\n");
		BIO_printf(bio_err," -offset arg   offset into file\n");
		BIO_printf(bio_err," -length arg   length of section in file\n");
		BIO_printf(bio_err," -i            indent entries\n");
		BIO_printf(bio_err," -dump         dump unknown data in hex form\n");
		BIO_printf(bio_err," -dlimit arg   dump the first arg bytes of unknown data in hex form\n");
		BIO_printf(bio_err," -oid file     file of extra oid definitions\n");
		BIO_printf(bio_err," -strparse offset\n");
		BIO_printf(bio_err,"               a series of these can be used to 'dig' into multiple\n");
		BIO_printf(bio_err,"               ASN1 blob wrappings\n");
		BIO_printf(bio_err," -genstr str   string to generate ASN1 structure from\n");
		BIO_printf(bio_err," -genconf file file to generate ASN1 structure from\n");
		goto end;
		}

	ERR_load_crypto_strings();

	in=BIO_new(BIO_s_file());
	out=BIO_new(BIO_s_file());
	if ((in == NULL) || (out == NULL))
		{
		ERR_print_errors(bio_err);
		goto end;
		}
	BIO_set_fp(out,stdout,BIO_NOCLOSE|BIO_FP_TEXT);
#ifdef OPENSSL_SYS_VMS
	{
	BIO *tmpbio = BIO_new(BIO_f_linebuffer());
	out = BIO_push(tmpbio, out);
	}
#endif

	if (oidfile != NULL)
		{
		if (BIO_read_filename(in,oidfile) <= 0)
			{
			BIO_printf(bio_err,"problems opening %s\n",oidfile);
			ERR_print_errors(bio_err);
			goto end;
			}
		OBJ_create_objects(in);
		}

	if (infile == NULL)
		BIO_set_fp(in,stdin,BIO_NOCLOSE);
	else
		{
		if (BIO_read_filename(in,infile) <= 0)
			{
			perror(infile);
			goto end;
			}
		}

	if (derfile) {
		if(!(derout = BIO_new_file(derfile, "wb"))) {
			BIO_printf(bio_err,"problems opening %s\n",derfile);
			ERR_print_errors(bio_err);
			goto end;
		}
	}

	if ((buf=BUF_MEM_new()) == NULL) goto end;
	if (!BUF_MEM_grow(buf,BUFSIZ*8)) goto end; /* Pre-allocate :-) */

	if (genstr || genconf)
		{
		num = do_generate(bio_err, genstr, genconf, buf);
		if (num < 0)
			{
			ERR_print_errors(bio_err);
			goto end;
			}
		}

	else
		{

		if (informat == FORMAT_PEM)
			{
			BIO *tmp;

			if ((b64=BIO_new(BIO_f_base64())) == NULL)
				goto end;
			BIO_push(b64,in);
			tmp=in;
			in=b64;
			b64=tmp;
			}

		num=0;
		for (;;)
			{
			if (!BUF_MEM_grow(buf,(int)num+BUFSIZ)) goto end;
			i=BIO_read(in,&(buf->data[num]),BUFSIZ);
			if (i <= 0) break;
			num+=i;
			}
		}
	str=buf->data;

	/* If any structs to parse go through in sequence */

	if (sk_STRING_num(osk))
		{
		tmpbuf=(unsigned char *)str;
		tmplen=num;
		for (i=0; i<sk_STRING_num(osk); i++)
			{
			ASN1_TYPE *atmp;
			int typ;
			j=atoi(sk_STRING_value(osk,i));
			if (j == 0)
				{
				BIO_printf(bio_err,"'%s' is an invalid number\n",sk_STRING_value(osk,i));
				continue;
				}
			tmpbuf+=j;
			tmplen-=j;
			atmp = at;
			ctmpbuf = tmpbuf;
			at = d2i_ASN1_TYPE(NULL,&ctmpbuf,tmplen);
			ASN1_TYPE_free(atmp);
			if(!at)
				{
				BIO_printf(bio_err,"Error parsing structure\n");
				ERR_print_errors(bio_err);
				goto end;
				}
			typ = ASN1_TYPE_get(at);
			if ((typ == V_ASN1_OBJECT)
				|| (typ == V_ASN1_NULL))
				{
				BIO_printf(bio_err, "Can't parse %s type\n",
					typ == V_ASN1_NULL ? "NULL" : "OBJECT");
				ERR_print_errors(bio_err);
				goto end;
				}
			/* hmm... this is a little evil but it works */
			tmpbuf=at->value.asn1_string->data;
			tmplen=at->value.asn1_string->length;
			}
		str=(char *)tmpbuf;
		num=tmplen;
		}

	if (offset >= num)
		{
		BIO_printf(bio_err, "Error: offset too large\n");
		goto end;
		}

	num -= offset;

	if ((length == 0) || ((long)length > num)) length=(unsigned int)num;
	if(derout) {
		if(BIO_write(derout, str + offset, length) != (int)length) {
			BIO_printf(bio_err, "Error writing output\n");
			ERR_print_errors(bio_err);
			goto end;
		}
	}
	if (!noout &&
	    !ASN1_parse_dump(out,(unsigned char *)&(str[offset]),length,
		    indent,dump))
		{
		ERR_print_errors(bio_err);
		goto end;
		}
	ret=0;
end:
	BIO_free(derout);
	if (in != NULL) BIO_free(in);
	if (out != NULL) BIO_free_all(out);
	if (b64 != NULL) BIO_free(b64);
	if (ret != 0)
		ERR_print_errors(bio_err);
	if (buf != NULL) BUF_MEM_free(buf);
	if (at != NULL) ASN1_TYPE_free(at);
	if (osk != NULL) sk_STRING_free(osk);
	OBJ_cleanup();
	apps_shutdown();
	OPENSSL_EXIT(ret);
	}

static int do_generate(BIO *bio, char *genstr, char *genconf, BUF_MEM *buf)
	{
	CONF *cnf = NULL;
	int len;
	long errline;
	unsigned char *p;
	ASN1_TYPE *atyp = NULL;

	if (genconf)
		{
		cnf = NCONF_new(NULL);
		if (!NCONF_load(cnf, genconf, &errline))
			goto conferr;
		if (!genstr)
			genstr = NCONF_get_string(cnf, "default", "asn1");
		if (!genstr)
			{
			BIO_printf(bio, "Can't find 'asn1' in '%s'\n", genconf);
			goto err;
			}
		}

	atyp = ASN1_generate_nconf(genstr, cnf);
	NCONF_free(cnf);

	if (!atyp)
		return -1;

	len = i2d_ASN1_TYPE(atyp, NULL);

	if (len <= 0)
		goto err;

	if (!BUF_MEM_grow(buf,len))
		goto err;

	p=(unsigned char *)buf->data;

	i2d_ASN1_TYPE(atyp, &p);

	ASN1_TYPE_free(atyp);
	return len;

	conferr:

	if (errline > 0)
		BIO_printf(bio, "Error on line %ld of config file '%s'\n",
							errline, genconf);
	else
		BIO_printf(bio, "Error loading config file '%s'\n", genconf);

	err:
	NCONF_free(cnf);
	ASN1_TYPE_free(atyp);

	return -1;

	}
Commit	Line	Data
d02b48c6	1	/* apps/asn1pars.c */
58964a49	2	/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
d02b48c6 RE	3	* All rights reserved.
	4	*
	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.
	8	*
	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).
	15	*
	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.
	22	*
	23	* Redistribution and use in source and binary forms, with or without
	24	* modification, are permitted provided that the following conditions
	25	* are met:
	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)"
	40	*
	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
	51	* SUCH DAMAGE.
	52	*
	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.]
	57	*/
	58
2e597528	59	/* A nice addition from Dr Stephen Henson <steve@openssl.org> to
651d0aff	60	* add the -strparse option which parses nested binary structures
dfeab068 RE	61	*/
dfeab068 RE	62
d02b48c6 RE	63	#include <stdio.h>
	64	#include <stdlib.h>
	65	#include <string.h>
	66	#include "apps.h"
ec577822 BM	67	#include <openssl/err.h>
	68	#include <openssl/evp.h>
	69	#include <openssl/x509.h>
	70	#include <openssl/pem.h>
d02b48c6	71
d02b48c6 RE	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
657e60fa	77	* -oid file - extra oid description file
d02b48c6 RE	78	*/
	79
	80	#undef PROG
	81	#define PROG asn1parse_main
	82
667ac4ec RE	83	int MAIN(int, char **);
667ac4ec RE	84
9ea1b878 DSH	85	static int do_generate(BIO bio, char genstr, char genconf, BUF_MEM buf);
9ea1b878 DSH	86
6b691a5c	87	int MAIN(int argc, char **argv)
d02b48c6	88	{
dfeab068	89	int i,badops=0,offset=0,ret=1,j;
d02b48c6	90	unsigned int length=0;
dfeab068	91	long num,tmplen;
f5eac85e	92	BIO in=NULL,out=NULL,b64=NULL, derout = NULL;
ca1e465f	93	int informat,indent=0, noout = 0, dump = 0;
f5eac85e	94	char infile=NULL,str=NULL,prog,oidfile=NULL, *derfile=NULL;
9ea1b878	95	char genstr=NULL, genconf=NULL;
dfeab068	96	unsigned char *tmpbuf;
875a644a	97	const unsigned char *ctmpbuf;
d02b48c6	98	BUF_MEM *buf=NULL;
5ce278a7	99	STACK_OF(STRING) *osk=NULL;
dfeab068	100	ASN1_TYPE *at=NULL;
d02b48c6	101
d02b48c6 RE	102	informat=FORMAT_PEM;
	103
	104	apps_startup();
	105
	106	if (bio_err == NULL)
	107	if ((bio_err=BIO_new(BIO_s_file())) != NULL)
58964a49	108	BIO_set_fp(bio_err,stderr,BIO_NOCLOSE\|BIO_FP_TEXT);
d02b48c6	109
3647bee2 DSH	110	if (!load_config(bio_err, NULL))
	111	goto end;
	112
d02b48c6 RE	113	prog=argv[0];
	114	argc--;
	115	argv++;
5ce278a7	116	if ((osk=sk_STRING_new_null()) == NULL)
dfeab068	117	{
26a3a48d	118	BIO_printf(bio_err,"Memory allocation failure\n");
dfeab068 RE	119	goto end;
dfeab068 RE	120	}
d02b48c6 RE	121	while (argc >= 1)
	122	{
	123	if (strcmp(*argv,"-inform") == 0)
	124	{
	125	if (--argc < 1) goto bad;
	126	informat=str2fmt(*(++argv));
	127	}
	128	else if (strcmp(*argv,"-in") == 0)
	129	{
	130	if (--argc < 1) goto bad;
	131	infile= *(++argv);
	132	}
f5eac85e DSH	133	else if (strcmp(*argv,"-out") == 0)
	134	{
	135	if (--argc < 1) goto bad;
	136	derfile= *(++argv);
	137	}
d02b48c6 RE	138	else if (strcmp(*argv,"-i") == 0)
	139	{
	140	indent=1;
	141	}
d71c6bc5	142	else if (strcmp(*argv,"-noout") == 0) noout = 1;
58964a49 RE	143	else if (strcmp(*argv,"-oid") == 0)
	144	{
	145	if (--argc < 1) goto bad;
	146	oidfile= *(++argv);
	147	}
d02b48c6 RE	148	else if (strcmp(*argv,"-offset") == 0)
	149	{
	150	if (--argc < 1) goto bad;
	151	offset= atoi(*(++argv));
	152	}
	153	else if (strcmp(*argv,"-length") == 0)
	154	{
	155	if (--argc < 1) goto bad;
	156	length= atoi(*(++argv));
	157	if (length == 0) goto bad;
	158	}
ca1e465f RL	159	else if (strcmp(*argv,"-dump") == 0)
	160	{
	161	dump= -1;
	162	}
	163	else if (strcmp(*argv,"-dlimit") == 0)
	164	{
	165	if (--argc < 1) goto bad;
	166	dump= atoi(*(++argv));
	167	if (dump <= 0) goto bad;
	168	}
dfeab068 RE	169	else if (strcmp(*argv,"-strparse") == 0)
	170	{
	171	if (--argc < 1) goto bad;
5ce278a7	172	sk_STRING_push(osk,*(++argv));
dfeab068	173	}
9ea1b878 DSH	174	else if (strcmp(*argv,"-genstr") == 0)
	175	{
	176	if (--argc < 1) goto bad;
	177	genstr= *(++argv);
	178	}
	179	else if (strcmp(*argv,"-genconf") == 0)
	180	{
	181	if (--argc < 1) goto bad;
	182	genconf= *(++argv);
	183	}
d02b48c6 RE	184	else
	185	{
	186	BIO_printf(bio_err,"unknown option %s\n",*argv);
	187	badops=1;
	188	break;
	189	}
	190	argc--;
	191	argv++;
	192	}
	193
	194	if (badops)
	195	{
	196	bad:
	197	BIO_printf(bio_err,"%s [options] <infile\n",prog);
	198	BIO_printf(bio_err,"where options are\n");
417f8973	199	BIO_printf(bio_err," -inform arg input format - one of DER PEM\n");
9fe84296	200	BIO_printf(bio_err," -in arg input file\n");
c56fb0f1	201	BIO_printf(bio_err," -out arg output file (output format is always DER\n");
d71c6bc5	202	BIO_printf(bio_err," -noout arg don't produce any output\n");
d02b48c6	203	BIO_printf(bio_err," -offset arg offset into file\n");
657e60fa	204	BIO_printf(bio_err," -length arg length of section in file\n");
d02b48c6	205	BIO_printf(bio_err," -i indent entries\n");
ca1e465f RL	206	BIO_printf(bio_err," -dump dump unknown data in hex form\n");
ca1e465f RL	207	BIO_printf(bio_err," -dlimit arg dump the first arg bytes of unknown data in hex form\n");
58964a49	208	BIO_printf(bio_err," -oid file file of extra oid definitions\n");
dfeab068 RE	209	BIO_printf(bio_err," -strparse offset\n");
	210	BIO_printf(bio_err," a series of these can be used to 'dig' into multiple\n");
	211	BIO_printf(bio_err," ASN1 blob wrappings\n");
9ea1b878 DSH	212	BIO_printf(bio_err," -genstr str string to generate ASN1 structure from\n");
9ea1b878 DSH	213	BIO_printf(bio_err," -genconf file file to generate ASN1 structure from\n");
d02b48c6 RE	214	goto end;
	215	}
	216
	217	ERR_load_crypto_strings();
	218
	219	in=BIO_new(BIO_s_file());
	220	out=BIO_new(BIO_s_file());
	221	if ((in == NULL) \|\| (out == NULL))
	222	{
	223	ERR_print_errors(bio_err);
	224	goto end;
	225	}
58964a49	226	BIO_set_fp(out,stdout,BIO_NOCLOSE\|BIO_FP_TEXT);
bc36ee62	227	#ifdef OPENSSL_SYS_VMS
645749ef RL	228	{
	229	BIO *tmpbio = BIO_new(BIO_f_linebuffer());
	230	out = BIO_push(tmpbio, out);
	231	}
	232	#endif
58964a49 RE	233
	234	if (oidfile != NULL)
	235	{
	236	if (BIO_read_filename(in,oidfile) <= 0)
	237	{
	238	BIO_printf(bio_err,"problems opening %s\n",oidfile);
	239	ERR_print_errors(bio_err);
	240	goto end;
	241	}
	242	OBJ_create_objects(in);
	243	}
	244
d02b48c6 RE	245	if (infile == NULL)
	246	BIO_set_fp(in,stdin,BIO_NOCLOSE);
	247	else
	248	{
	249	if (BIO_read_filename(in,infile) <= 0)
	250	{
	251	perror(infile);
	252	goto end;
	253	}
	254	}
	255
f5eac85e DSH	256	if (derfile) {
	257	if(!(derout = BIO_new_file(derfile, "wb"))) {
	258	BIO_printf(bio_err,"problems opening %s\n",derfile);
	259	ERR_print_errors(bio_err);
	260	goto end;
	261	}
	262	}
	263
d02b48c6 RE	264	if ((buf=BUF_MEM_new()) == NULL) goto end;
	265	if (!BUF_MEM_grow(buf,BUFSIZ8)) goto end; / Pre-allocate :-) */
	266
9ea1b878	267	if (genstr \|\| genconf)
d02b48c6	268	{
9ea1b878 DSH	269	num = do_generate(bio_err, genstr, genconf, buf);
	270	if (num < 0)
	271	{
	272	ERR_print_errors(bio_err);
d02b48c6	273	goto end;
9ea1b878	274	}
d02b48c6 RE	275	}
d02b48c6 RE	276
9ea1b878	277	else
d02b48c6	278	{
9ea1b878 DSH	279
	280	if (informat == FORMAT_PEM)
	281	{
	282	BIO *tmp;
	283
	284	if ((b64=BIO_new(BIO_f_base64())) == NULL)
	285	goto end;
	286	BIO_push(b64,in);
	287	tmp=in;
	288	in=b64;
	289	b64=tmp;
	290	}
	291
	292	num=0;
	293	for (;;)
	294	{
	295	if (!BUF_MEM_grow(buf,(int)num+BUFSIZ)) goto end;
	296	i=BIO_read(in,&(buf->data[num]),BUFSIZ);
	297	if (i <= 0) break;
	298	num+=i;
	299	}
d02b48c6 RE	300	}
	301	str=buf->data;
	302
dfeab068 RE	303	/* If any structs to parse go through in sequence */
dfeab068 RE	304
5ce278a7	305	if (sk_STRING_num(osk))
dfeab068 RE	306	{
	307	tmpbuf=(unsigned char *)str;
	308	tmplen=num;
5ce278a7	309	for (i=0; i<sk_STRING_num(osk); i++)
dfeab068	310	{
f5eac85e	311	ASN1_TYPE *atmp;
0efea28d	312	int typ;
5ce278a7	313	j=atoi(sk_STRING_value(osk,i));
dfeab068 RE	314	if (j == 0)
dfeab068 RE	315	{
5ce278a7	316	BIO_printf(bio_err,"'%s' is an invalid number\n",sk_STRING_value(osk,i));
dfeab068 RE	317	continue;
	318	}
	319	tmpbuf+=j;
	320	tmplen-=j;
f5eac85e	321	atmp = at;
875a644a RL	322	ctmpbuf = tmpbuf;
875a644a RL	323	at = d2i_ASN1_TYPE(NULL,&ctmpbuf,tmplen);
f5eac85e DSH	324	ASN1_TYPE_free(atmp);
f5eac85e DSH	325	if(!at)
dfeab068 RE	326	{
	327	BIO_printf(bio_err,"Error parsing structure\n");
	328	ERR_print_errors(bio_err);
0efea28d DSH	329	goto end;
	330	}
	331	typ = ASN1_TYPE_get(at);
	332	if ((typ == V_ASN1_OBJECT)
	333	\|\| (typ == V_ASN1_NULL))
	334	{
	335	BIO_printf(bio_err, "Can't parse %s type\n",
	336	typ == V_ASN1_NULL ? "NULL" : "OBJECT");
	337	ERR_print_errors(bio_err);
dfeab068 RE	338	goto end;
	339	}
	340	/* hmm... this is a little evil but it works */
	341	tmpbuf=at->value.asn1_string->data;
	342	tmplen=at->value.asn1_string->length;
	343	}
	344	str=(char *)tmpbuf;
	345	num=tmplen;
	346	}
	347
37ead9be DSH	348	if (offset >= num)
	349	{
	350	BIO_printf(bio_err, "Error: offset too large\n");
	351	goto end;
	352	}
	353
	354	num -= offset;
	355
6c430321	356	if ((length == 0) \|\| ((long)length > num)) length=(unsigned int)num;
f5eac85e	357	if(derout) {
a74c55cd	358	if(BIO_write(derout, str + offset, length) != (int)length) {
f5eac85e DSH	359	BIO_printf(bio_err, "Error writing output\n");
	360	ERR_print_errors(bio_err);
	361	goto end;
	362	}
	363	}
d71c6bc5	364	if (!noout &&
ca1e465f RL	365	!ASN1_parse_dump(out,(unsigned char *)&(str[offset]),length,
ca1e465f RL	366	indent,dump))
d02b48c6 RE	367	{
	368	ERR_print_errors(bio_err);
	369	goto end;
	370	}
	371	ret=0;
	372	end:
f5eac85e	373	BIO_free(derout);
d02b48c6	374	if (in != NULL) BIO_free(in);
645749ef	375	if (out != NULL) BIO_free_all(out);
d02b48c6 RE	376	if (b64 != NULL) BIO_free(b64);
	377	if (ret != 0)
	378	ERR_print_errors(bio_err);
	379	if (buf != NULL) BUF_MEM_free(buf);
dfeab068	380	if (at != NULL) ASN1_TYPE_free(at);
5ce278a7	381	if (osk != NULL) sk_STRING_free(osk);
58964a49	382	OBJ_cleanup();
c04f8cf4	383	apps_shutdown();
1c3e4a36	384	OPENSSL_EXIT(ret);
d02b48c6 RE	385	}
d02b48c6 RE	386
9ea1b878 DSH	387	static int do_generate(BIO bio, char genstr, char genconf, BUF_MEM buf)
	388	{
	389	CONF *cnf = NULL;
	390	int len;
	391	long errline;
	392	unsigned char *p;
	393	ASN1_TYPE *atyp = NULL;
	394
	395	if (genconf)
	396	{
	397	cnf = NCONF_new(NULL);
	398	if (!NCONF_load(cnf, genconf, &errline))
	399	goto conferr;
	400	if (!genstr)
	401	genstr = NCONF_get_string(cnf, "default", "asn1");
	402	if (!genstr)
	403	{
	404	BIO_printf(bio, "Can't find 'asn1' in '%s'\n", genconf);
	405	goto err;
	406	}
	407	}
	408
	409	atyp = ASN1_generate_nconf(genstr, cnf);
	410	NCONF_free(cnf);
	411
	412	if (!atyp)
	413	return -1;
	414
	415	len = i2d_ASN1_TYPE(atyp, NULL);
	416
	417	if (len <= 0)
	418	goto err;
	419
	420	if (!BUF_MEM_grow(buf,len))
	421	goto err;
	422
	423	p=(unsigned char *)buf->data;
	424
	425	i2d_ASN1_TYPE(atyp, &p);
	426
	427	ASN1_TYPE_free(atyp);
	428	return len;
	429
	430	conferr:
	431
	432	if (errline > 0)
	433	BIO_printf(bio, "Error on line %ld of config file '%s'\n",
	434	errline, genconf);
	435	else
	436	BIO_printf(bio, "Error loading config file '%s'\n", genconf);
	437
	438	err:
	439	NCONF_free(cnf);
	440	ASN1_TYPE_free(atyp);
	441
	442	return -1;
	443
	444	}