[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 <shenson@bigfoot.com> 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 decription file
 */

#undef PROG
#define PROG	asn1parse_main

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;
	char *infile=NULL,*str=NULL,*prog,*oidfile=NULL, *derfile=NULL;
	unsigned char *tmpbuf;
	BUF_MEM *buf=NULL;
	STACK *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);

	prog=argv[0];
	argc--;
	argv++;
	if ((osk=sk_new_null()) == NULL)
		{
		BIO_printf(bio_err,"Malloc 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,"-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,"-strparse") == 0)
			{
			if (--argc < 1) goto bad;
			sk_push(osk,*(++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 TXT PEM\n");
		BIO_printf(bio_err," -in arg       input file\n");
		BIO_printf(bio_err," -offset arg   offset into file\n");
		BIO_printf(bio_err," -length arg   lenth of section in file\n");
		BIO_printf(bio_err," -i            indent entries\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," -out filename output DER encoding to file\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);

	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 (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_num(osk))
		{
		tmpbuf=(unsigned char *)str;
		tmplen=num;
		for (i=0; i<sk_num(osk); i++)
			{
			ASN1_TYPE *atmp;
			j=atoi(sk_value(osk,i));
			if (j == 0)
				{
				BIO_printf(bio_err,"'%s' is an invalid number\n",sk_value(osk,i));
				continue;
				}
			tmpbuf+=j;
			tmplen-=j;
			atmp = at;
			at = d2i_ASN1_TYPE(NULL,&tmpbuf,tmplen);
			ASN1_TYPE_free(atmp);
			if(!at)
				{
				BIO_printf(bio_err,"Error parsing structure\n");
				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 (length == 0) length=(unsigned int)num;
	if(derout) {
		if(BIO_write(derout, str + offset, length) != length) {
			BIO_printf(bio_err, "Error writing output\n");
			ERR_print_errors(bio_err);
			goto end;
		}
	}
	if (!ASN1_parse(out,(unsigned char *)&(str[offset]),length,indent))
		{
		ERR_print_errors(bio_err);
		goto end;
		}
	ret=0;
end:
	BIO_free(derout);
	if (in != NULL) BIO_free(in);
	if (out != NULL) BIO_free(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_free(osk);
	OBJ_cleanup();
	EXIT(ret);
	}
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
dfeab068	59	/* A nice addition from Dr Stephen Henson <shenson@bigfoot.com> 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
58964a49	77	* -oid file - extra oid decription file
d02b48c6 RE	78	*/
	79
	80	#undef PROG
	81	#define PROG asn1parse_main
	82
6b691a5c	83	int MAIN(int argc, char **argv)
d02b48c6	84	{
dfeab068	85	int i,badops=0,offset=0,ret=1,j;
d02b48c6	86	unsigned int length=0;
dfeab068	87	long num,tmplen;
f5eac85e	88	BIO in=NULL,out=NULL,b64=NULL, derout = NULL;
d02b48c6	89	int informat,indent=0;
f5eac85e	90	char infile=NULL,str=NULL,prog,oidfile=NULL, *derfile=NULL;
dfeab068	91	unsigned char *tmpbuf;
d02b48c6	92	BUF_MEM *buf=NULL;
dfeab068 RE	93	STACK *osk=NULL;
dfeab068 RE	94	ASN1_TYPE *at=NULL;
d02b48c6	95
d02b48c6 RE	96	informat=FORMAT_PEM;
	97
	98	apps_startup();
	99
	100	if (bio_err == NULL)
	101	if ((bio_err=BIO_new(BIO_s_file())) != NULL)
58964a49	102	BIO_set_fp(bio_err,stderr,BIO_NOCLOSE\|BIO_FP_TEXT);
d02b48c6 RE	103
	104	prog=argv[0];
	105	argc--;
	106	argv++;
dfeab068 RE	107	if ((osk=sk_new_null()) == NULL)
	108	{
	109	BIO_printf(bio_err,"Malloc failure\n");
	110	goto end;
	111	}
d02b48c6 RE	112	while (argc >= 1)
	113	{
	114	if (strcmp(*argv,"-inform") == 0)
	115	{
	116	if (--argc < 1) goto bad;
	117	informat=str2fmt(*(++argv));
	118	}
	119	else if (strcmp(*argv,"-in") == 0)
	120	{
	121	if (--argc < 1) goto bad;
	122	infile= *(++argv);
	123	}
f5eac85e DSH	124	else if (strcmp(*argv,"-out") == 0)
	125	{
	126	if (--argc < 1) goto bad;
	127	derfile= *(++argv);
	128	}
d02b48c6 RE	129	else if (strcmp(*argv,"-i") == 0)
	130	{
	131	indent=1;
	132	}
58964a49 RE	133	else if (strcmp(*argv,"-oid") == 0)
	134	{
	135	if (--argc < 1) goto bad;
	136	oidfile= *(++argv);
	137	}
d02b48c6 RE	138	else if (strcmp(*argv,"-offset") == 0)
	139	{
	140	if (--argc < 1) goto bad;
	141	offset= atoi(*(++argv));
	142	}
	143	else if (strcmp(*argv,"-length") == 0)
	144	{
	145	if (--argc < 1) goto bad;
	146	length= atoi(*(++argv));
	147	if (length == 0) goto bad;
	148	}
dfeab068 RE	149	else if (strcmp(*argv,"-strparse") == 0)
	150	{
	151	if (--argc < 1) goto bad;
	152	sk_push(osk,*(++argv));
	153	}
d02b48c6 RE	154	else
	155	{
	156	BIO_printf(bio_err,"unknown option %s\n",*argv);
	157	badops=1;
	158	break;
	159	}
	160	argc--;
	161	argv++;
	162	}
	163
	164	if (badops)
	165	{
	166	bad:
	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");
9fe84296	170	BIO_printf(bio_err," -in arg input file\n");
d02b48c6 RE	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");
58964a49	174	BIO_printf(bio_err," -oid file file of extra oid definitions\n");
dfeab068 RE	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");
f5eac85e	178	BIO_printf(bio_err," -out filename output DER encoding to file\n");
d02b48c6 RE	179	goto end;
	180	}
	181
	182	ERR_load_crypto_strings();
	183
	184	in=BIO_new(BIO_s_file());
	185	out=BIO_new(BIO_s_file());
	186	if ((in == NULL) \|\| (out == NULL))
	187	{
	188	ERR_print_errors(bio_err);
	189	goto end;
	190	}
58964a49 RE	191	BIO_set_fp(out,stdout,BIO_NOCLOSE\|BIO_FP_TEXT);
	192
	193	if (oidfile != NULL)
	194	{
	195	if (BIO_read_filename(in,oidfile) <= 0)
	196	{
	197	BIO_printf(bio_err,"problems opening %s\n",oidfile);
	198	ERR_print_errors(bio_err);
	199	goto end;
	200	}
	201	OBJ_create_objects(in);
	202	}
	203
d02b48c6 RE	204	if (infile == NULL)
	205	BIO_set_fp(in,stdin,BIO_NOCLOSE);
	206	else
	207	{
	208	if (BIO_read_filename(in,infile) <= 0)
	209	{
	210	perror(infile);
	211	goto end;
	212	}
	213	}
	214
f5eac85e DSH	215	if (derfile) {
	216	if(!(derout = BIO_new_file(derfile, "wb"))) {
	217	BIO_printf(bio_err,"problems opening %s\n",derfile);
	218	ERR_print_errors(bio_err);
	219	goto end;
	220	}
	221	}
	222
d02b48c6 RE	223	if ((buf=BUF_MEM_new()) == NULL) goto end;
	224	if (!BUF_MEM_grow(buf,BUFSIZ8)) goto end; / Pre-allocate :-) */
	225
	226	if (informat == FORMAT_PEM)
	227	{
	228	BIO *tmp;
	229
	230	if ((b64=BIO_new(BIO_f_base64())) == NULL)
	231	goto end;
	232	BIO_push(b64,in);
	233	tmp=in;
	234	in=b64;
	235	b64=tmp;
	236	}
	237
	238	num=0;
	239	for (;;)
	240	{
	241	if (!BUF_MEM_grow(buf,(int)num+BUFSIZ)) goto end;
	242	i=BIO_read(in,&(buf->data[num]),BUFSIZ);
	243	if (i <= 0) break;
	244	num+=i;
	245	}
	246	str=buf->data;
	247
dfeab068 RE	248	/* If any structs to parse go through in sequence */
	249
	250	if (sk_num(osk))
	251	{
	252	tmpbuf=(unsigned char *)str;
	253	tmplen=num;
	254	for (i=0; i<sk_num(osk); i++)
	255	{
f5eac85e	256	ASN1_TYPE *atmp;
dfeab068 RE	257	j=atoi(sk_value(osk,i));
	258	if (j == 0)
	259	{
	260	BIO_printf(bio_err,"'%s' is an invalid number\n",sk_value(osk,i));
	261	continue;
	262	}
	263	tmpbuf+=j;
	264	tmplen-=j;
f5eac85e DSH	265	atmp = at;
	266	at = d2i_ASN1_TYPE(NULL,&tmpbuf,tmplen);
	267	ASN1_TYPE_free(atmp);
	268	if(!at)
dfeab068 RE	269	{
	270	BIO_printf(bio_err,"Error parsing structure\n");
	271	ERR_print_errors(bio_err);
	272	goto end;
	273	}
	274	/* hmm... this is a little evil but it works */
	275	tmpbuf=at->value.asn1_string->data;
	276	tmplen=at->value.asn1_string->length;
	277	}
	278	str=(char *)tmpbuf;
	279	num=tmplen;
	280	}
	281
d02b48c6	282	if (length == 0) length=(unsigned int)num;
f5eac85e DSH	283	if(derout) {
	284	if(BIO_write(derout, str + offset, length) != length) {
	285	BIO_printf(bio_err, "Error writing output\n");
	286	ERR_print_errors(bio_err);
	287	goto end;
	288	}
	289	}
d02b48c6 RE	290	if (!ASN1_parse(out,(unsigned char *)&(str[offset]),length,indent))
	291	{
	292	ERR_print_errors(bio_err);
	293	goto end;
	294	}
	295	ret=0;
	296	end:
f5eac85e	297	BIO_free(derout);
d02b48c6 RE	298	if (in != NULL) BIO_free(in);
	299	if (out != NULL) BIO_free(out);
	300	if (b64 != NULL) BIO_free(b64);
	301	if (ret != 0)
	302	ERR_print_errors(bio_err);
	303	if (buf != NULL) BUF_MEM_free(buf);
dfeab068 RE	304	if (at != NULL) ASN1_TYPE_free(at);
dfeab068 RE	305	if (osk != NULL) sk_free(osk);
58964a49	306	OBJ_cleanup();
d02b48c6 RE	307	EXIT(ret);
	308	}
	309