Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.bin/openssl/asn1pars.c	Lines:	0	169	0.0 %
Date:	2016-12-06	Branches:	0	92	0.0 %


/* $OpenBSD: asn1pars.c,v 1.6 2015/10/17 15:00:11 doug Exp $ */
/* 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 <limits.h>
#include <string.h>

#include "apps.h"
#include "progs.h"

#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/pem.h>
#include <openssl/x509.h>

static struct {
	char *derfile;
	int dump;
	char *genconf;
	char *genstr;
	int indent;
	char *infile;
	int informat;
	unsigned int length;
	int noout;
	int offset;
	char *oidfile;
	STACK_OF(OPENSSL_STRING) *osk;
} asn1pars_config;

static int
asn1pars_opt_dlimit(char *arg)
{
	const char *errstr;

	asn1pars_config.dump = strtonum(arg, 1, INT_MAX, &errstr);
	if (errstr) {
		fprintf(stderr, "-dlimit must be from 1 to INT_MAX: %s\n",
		    errstr);
		return (-1);
	}
	return (0);
}

static int
asn1pars_opt_length(char *arg)
{
	const char *errstr;

	asn1pars_config.length = strtonum(arg, 1, UINT_MAX, &errstr);
	if (errstr) {
		fprintf(stderr, "-length must be from 1 to UINT_MAX: %s\n",
		    errstr);
		return (-1);
	}
	return (0);
}

static int
asn1pars_opt_strparse(char *arg)
{
	if (sk_OPENSSL_STRING_push(asn1pars_config.osk, arg) == 0) {
		fprintf(stderr, "-strparse cannot add argument\n");
		return (-1);
	}
	return (0);
}

static struct option asn1pars_options[] = {
	{
		.name = "dump",
		.desc = "Dump unknown data in hex form",
		.type = OPTION_VALUE,
		.value = -1,
		.opt.value = &asn1pars_config.dump,
	},
	{
		.name = "dlimit",
		.argname = "num",
		.desc = "Dump the first num bytes of unknown data in hex form",
		.type = OPTION_ARG_FUNC,
		.opt.argfunc = asn1pars_opt_dlimit,
	},
	{
		.name = "genconf",
		.argname = "file",
		.desc = "File to generate ASN.1 structure from",
		.type = OPTION_ARG,
		.opt.arg = &asn1pars_config.genconf,
	},
	{
		.name = "genstr",
		.argname = "string",
		.desc = "String to generate ASN.1 structure from",
		.type = OPTION_ARG,
		.opt.arg = &asn1pars_config.genstr,
	},
	{
		.name = "i",
		.desc = "Indent output according to depth of structures",
		.type = OPTION_FLAG,
		.opt.flag = &asn1pars_config.indent,
	},
	{
		.name = "in",
		.argname = "file",
		.desc = "The input file (default stdin)",
		.type = OPTION_ARG,
		.opt.arg = &asn1pars_config.infile,
	},
	{
		.name = "inform",
		.argname = "fmt",
		.desc = "Input format (DER, TXT or PEM (default))",
		.type = OPTION_ARG_FORMAT,
		.opt.value = &asn1pars_config.informat,
	},
	{
		.name = "length",
		.argname = "num",
		.desc = "Number of bytes to parse (default until EOF)",
		.type = OPTION_ARG_FUNC,
		.opt.argfunc = asn1pars_opt_length,
	},
	{
		.name = "noout",
		.desc = "Do not produce any output",
		.type = OPTION_FLAG,
		.opt.flag = &asn1pars_config.noout,
	},
	{
		.name = "offset",
		.argname = "num",
		.desc = "Offset to begin parsing",
		.type = OPTION_ARG_INT,
		.opt.value = &asn1pars_config.offset,
	},
	{
		.name = "oid",
		.argname = "file",
		.desc = "File containing additional object identifiers (OIDs)",
		.type = OPTION_ARG,
		.opt.arg = &asn1pars_config.oidfile,
	},
	{
		.name = "out",
		.argname = "file",
		.desc = "Output file in DER format",
		.type = OPTION_ARG,
		.opt.arg = &asn1pars_config.derfile,
	},
	{
		.name = "strparse",
		.argname = "offset",
		.desc = "Parse the content octets of ASN.1 object starting at"
		" offset",
		.type = OPTION_ARG_FUNC,
		.opt.argfunc = asn1pars_opt_strparse,
	},
	{ NULL },
};

static void
asn1pars_usage()
{
	fprintf(stderr,
	    "usage: asn1parse [-i] [-dlimit num] [-dump] [-genconf file] "
	    "[-genstr string]\n"
	    "    [-in file] [-inform fmt] [-length num] [-noout] [-offset num] "
	    "[-oid file]\n"
	    "    [-out file] [-strparse offset]\n\n");
	options_usage(asn1pars_options);
}

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

int
asn1parse_main(int argc, char **argv)
{
	int i, j, ret = 1;
	long num, tmplen;
	BIO *in = NULL, *out = NULL, *b64 = NULL, *derout = NULL;
	char *str = NULL;
	const char *errstr = NULL;
	unsigned char *tmpbuf;
	const unsigned char *ctmpbuf;
	BUF_MEM *buf = NULL;
	ASN1_TYPE *at = NULL;

	if (single_execution) {
		if (pledge("stdio rpath wpath cpath", NULL) == -1) {
			perror("pledge");
			exit(1);
		}
	}

	memset(&asn1pars_config, 0, sizeof(asn1pars_config));

	asn1pars_config.informat = FORMAT_PEM;
	if ((asn1pars_config.osk = sk_OPENSSL_STRING_new_null()) == NULL) {
		BIO_printf(bio_err, "Memory allocation failure\n");
		goto end;
	}

	if (options_parse(argc, argv, asn1pars_options, NULL, NULL) != 0) {
		asn1pars_usage();
		return (1);
	}

	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 (asn1pars_config.oidfile != NULL) {
		if (BIO_read_filename(in, asn1pars_config.oidfile) <= 0) {
			BIO_printf(bio_err, "problems opening %s\n",
			    asn1pars_config.oidfile);
			ERR_print_errors(bio_err);
			goto end;
		}
		OBJ_create_objects(in);
	}
	if (asn1pars_config.infile == NULL)
		BIO_set_fp(in, stdin, BIO_NOCLOSE);
	else {
		if (BIO_read_filename(in, asn1pars_config.infile) <= 0) {
			perror(asn1pars_config.infile);
			goto end;
		}
	}

	if (asn1pars_config.derfile) {
		if (!(derout = BIO_new_file(asn1pars_config.derfile, "wb"))) {
			BIO_printf(bio_err, "problems opening %s\n",
			    asn1pars_config.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 (asn1pars_config.genstr || asn1pars_config.genconf) {
		num = do_generate(bio_err, asn1pars_config.genstr,
		    asn1pars_config.genconf, buf);
		if (num < 0) {
			ERR_print_errors(bio_err);
			goto end;
		}
	} else {

		if (asn1pars_config.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_OPENSSL_STRING_num(asn1pars_config.osk)) {
		tmpbuf = (unsigned char *) str;
		tmplen = num;
		for (i = 0; i < sk_OPENSSL_STRING_num(asn1pars_config.osk);
		     i++) {
			ASN1_TYPE *atmp;
			int typ;
			j = strtonum(
			    sk_OPENSSL_STRING_value(asn1pars_config.osk, i),
			    1, INT_MAX, &errstr);
			if (errstr) {
				BIO_printf(bio_err,
				    "'%s' is an invalid number: %s\n",
				    sk_OPENSSL_STRING_value(asn1pars_config.osk,
				    i), errstr);
				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 (asn1pars_config.offset >= num) {
		BIO_printf(bio_err, "Error: offset too large\n");
		goto end;
	}
	num -= asn1pars_config.offset;

	if ((asn1pars_config.length == 0) ||
	    ((long)asn1pars_config.length > num))
		asn1pars_config.length = (unsigned int) num;
	if (derout) {
		if (BIO_write(derout, str + asn1pars_config.offset,
		    asn1pars_config.length) != (int)asn1pars_config.length) {
			BIO_printf(bio_err, "Error writing output\n");
			ERR_print_errors(bio_err);
			goto end;
		}
	}
	if (!asn1pars_config.noout &&
	    !ASN1_parse_dump(out,
	    (unsigned char *)&(str[asn1pars_config.offset]),
	    asn1pars_config.length, asn1pars_config.indent,
	    asn1pars_config.dump)) {
		ERR_print_errors(bio_err);
		goto end;
	}
	ret = 0;
end:
	BIO_free(derout);
	BIO_free(in);
	BIO_free_all(out);
	BIO_free(b64);
	if (ret != 0)
		ERR_print_errors(bio_err);
	BUF_MEM_free(buf);
	if (at != NULL)
		ASN1_TYPE_free(at);
	sk_OPENSSL_STRING_free(asn1pars_config.osk);
	OBJ_cleanup();

	return (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);
	cnf = NULL;

	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;

}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: asn1pars.c,v 1.6 2015/10/17 15:00:11 doug Exp $ */
2			/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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
59			/* A nice addition from Dr Stephen Henson <steve@openssl.org> to
60			* add the -strparse option which parses nested binary structures
61			*/
62
63			#include <stdio.h>
64			#include <stdlib.h>
65			#include <limits.h>
66			#include <string.h>
67
68			#include "apps.h"
69			#include "progs.h"
70
71			#include <openssl/err.h>
72			#include <openssl/evp.h>
73			#include <openssl/pem.h>
74			#include <openssl/x509.h>
75
76			static struct {
77			char *derfile;
78			int dump;
79			char *genconf;
80			char *genstr;
81			int indent;
82			char *infile;
83			int informat;
84			unsigned int length;
85			int noout;
86			int offset;
87			char *oidfile;
88			STACK_OF(OPENSSL_STRING) *osk;
89			} asn1pars_config;
90
91			static int
92			asn1pars_opt_dlimit(char *arg)
93			{
94			const char *errstr;
95
96			asn1pars_config.dump = strtonum(arg, 1, INT_MAX, &errstr);
97			if (errstr) {
98			fprintf(stderr, "-dlimit must be from 1 to INT_MAX: %s\n",
99			errstr);
100			return (-1);
101			}
102			return (0);
103			}
104
105			static int
106			asn1pars_opt_length(char *arg)
107			{
108			const char *errstr;
109
110			asn1pars_config.length = strtonum(arg, 1, UINT_MAX, &errstr);
111			if (errstr) {
112			fprintf(stderr, "-length must be from 1 to UINT_MAX: %s\n",
113			errstr);
114			return (-1);
115			}
116			return (0);
117			}
118
119			static int
120			asn1pars_opt_strparse(char *arg)
121			{
122			if (sk_OPENSSL_STRING_push(asn1pars_config.osk, arg) == 0) {
123			fprintf(stderr, "-strparse cannot add argument\n");
124			return (-1);
125			}
126			return (0);
127			}
128
129			static struct option asn1pars_options[] = {
130			{
131			.name = "dump",
132			.desc = "Dump unknown data in hex form",
133			.type = OPTION_VALUE,
134			.value = -1,
135			.opt.value = &asn1pars_config.dump,
136			},
137			{
138			.name = "dlimit",
139			.argname = "num",
140			.desc = "Dump the first num bytes of unknown data in hex form",
141			.type = OPTION_ARG_FUNC,
142			.opt.argfunc = asn1pars_opt_dlimit,
143			},
144			{
145			.name = "genconf",
146			.argname = "file",
147			.desc = "File to generate ASN.1 structure from",
148			.type = OPTION_ARG,
149			.opt.arg = &asn1pars_config.genconf,
150			},
151			{
152			.name = "genstr",
153			.argname = "string",
154			.desc = "String to generate ASN.1 structure from",
155			.type = OPTION_ARG,
156			.opt.arg = &asn1pars_config.genstr,
157			},
158			{
159			.name = "i",
160			.desc = "Indent output according to depth of structures",
161			.type = OPTION_FLAG,
162			.opt.flag = &asn1pars_config.indent,
163			},
164			{
165			.name = "in",
166			.argname = "file",
167			.desc = "The input file (default stdin)",
168			.type = OPTION_ARG,
169			.opt.arg = &asn1pars_config.infile,
170			},
171			{
172			.name = "inform",
173			.argname = "fmt",
174			.desc = "Input format (DER, TXT or PEM (default))",
175			.type = OPTION_ARG_FORMAT,
176			.opt.value = &asn1pars_config.informat,
177			},
178			{
179			.name = "length",
180			.argname = "num",
181			.desc = "Number of bytes to parse (default until EOF)",
182			.type = OPTION_ARG_FUNC,
183			.opt.argfunc = asn1pars_opt_length,
184			},
185			{
186			.name = "noout",
187			.desc = "Do not produce any output",
188			.type = OPTION_FLAG,
189			.opt.flag = &asn1pars_config.noout,
190			},
191			{
192			.name = "offset",
193			.argname = "num",
194			.desc = "Offset to begin parsing",
195			.type = OPTION_ARG_INT,
196			.opt.value = &asn1pars_config.offset,
197			},
198			{
199			.name = "oid",
200			.argname = "file",
201			.desc = "File containing additional object identifiers (OIDs)",
202			.type = OPTION_ARG,
203			.opt.arg = &asn1pars_config.oidfile,
204			},
205			{
206			.name = "out",
207			.argname = "file",
208			.desc = "Output file in DER format",
209			.type = OPTION_ARG,
210			.opt.arg = &asn1pars_config.derfile,
211			},
212			{
213			.name = "strparse",
214			.argname = "offset",
215			.desc = "Parse the content octets of ASN.1 object starting at"
216			" offset",
217			.type = OPTION_ARG_FUNC,
218			.opt.argfunc = asn1pars_opt_strparse,
219			},
220			{ NULL },
221			};
222
223			static void
224			asn1pars_usage()
225			{
226			fprintf(stderr,
227			"usage: asn1parse [-i] [-dlimit num] [-dump] [-genconf file] "
228			"[-genstr string]\n"
229			" [-in file] [-inform fmt] [-length num] [-noout] [-offset num] "
230			"[-oid file]\n"
231			" [-out file] [-strparse offset]\n\n");
232			options_usage(asn1pars_options);
233			}
234
235			static int do_generate(BIO bio, char genstr, char genconf, BUF_MEM buf);
236
237			int
238			asn1parse_main(int argc, char **argv)
239			{
240			int i, j, ret = 1;
241			long num, tmplen;
242			BIO in = NULL, out = NULL, b64 = NULL, derout = NULL;
243			char *str = NULL;
244			const char *errstr = NULL;
245			unsigned char *tmpbuf;
246			const unsigned char *ctmpbuf;
247			BUF_MEM *buf = NULL;
248			ASN1_TYPE *at = NULL;
249
250			if (single_execution) {
251			if (pledge("stdio rpath wpath cpath", NULL) == -1) {
252			perror("pledge");
253			exit(1);
254			}
255			}
256
257			memset(&asn1pars_config, 0, sizeof(asn1pars_config));
258
259			asn1pars_config.informat = FORMAT_PEM;
260			if ((asn1pars_config.osk = sk_OPENSSL_STRING_new_null()) == NULL) {
261			BIO_printf(bio_err, "Memory allocation failure\n");
262			goto end;
263			}
264
265			if (options_parse(argc, argv, asn1pars_options, NULL, NULL) != 0) {
266			asn1pars_usage();
267			return (1);
268			}
269
270			in = BIO_new(BIO_s_file());
271			out = BIO_new(BIO_s_file());
272			if ((in == NULL) \|\| (out == NULL)) {
273			ERR_print_errors(bio_err);
274			goto end;
275			}
276			BIO_set_fp(out, stdout, BIO_NOCLOSE \| BIO_FP_TEXT);
277
278			if (asn1pars_config.oidfile != NULL) {
279			if (BIO_read_filename(in, asn1pars_config.oidfile) <= 0) {
280			BIO_printf(bio_err, "problems opening %s\n",
281			asn1pars_config.oidfile);
282			ERR_print_errors(bio_err);
283			goto end;
284			}
285			OBJ_create_objects(in);
286			}
287			if (asn1pars_config.infile == NULL)
288			BIO_set_fp(in, stdin, BIO_NOCLOSE);
289			else {
290			if (BIO_read_filename(in, asn1pars_config.infile) <= 0) {
291			perror(asn1pars_config.infile);
292			goto end;
293			}
294			}
295
296			if (asn1pars_config.derfile) {
297			if (!(derout = BIO_new_file(asn1pars_config.derfile, "wb"))) {
298			BIO_printf(bio_err, "problems opening %s\n",
299			asn1pars_config.derfile);
300			ERR_print_errors(bio_err);
301			goto end;
302			}
303			}
304			if ((buf = BUF_MEM_new()) == NULL)
305			goto end;
306			if (!BUF_MEM_grow(buf, BUFSIZ * 8))
307			goto end; /* Pre-allocate :-) */
308
309			if (asn1pars_config.genstr \|\| asn1pars_config.genconf) {
310			num = do_generate(bio_err, asn1pars_config.genstr,
311			asn1pars_config.genconf, buf);
312			if (num < 0) {
313			ERR_print_errors(bio_err);
314			goto end;
315			}
316			} else {
317
318			if (asn1pars_config.informat == FORMAT_PEM) {
319			BIO *tmp;
320
321			if ((b64 = BIO_new(BIO_f_base64())) == NULL)
322			goto end;
323			BIO_push(b64, in);
324			tmp = in;
325			in = b64;
326			b64 = tmp;
327			}
328			num = 0;
329			for (;;) {
330			if (!BUF_MEM_grow(buf, (int) num + BUFSIZ))
331			goto end;
332			i = BIO_read(in, &(buf->data[num]), BUFSIZ);
333			if (i <= 0)
334			break;
335			num += i;
336			}
337			}
338			str = buf->data;
339
340			/* If any structs to parse go through in sequence */
341
342			if (sk_OPENSSL_STRING_num(asn1pars_config.osk)) {
343			tmpbuf = (unsigned char *) str;
344			tmplen = num;
345			for (i = 0; i < sk_OPENSSL_STRING_num(asn1pars_config.osk);
346			i++) {
347			ASN1_TYPE *atmp;
348			int typ;
349			j = strtonum(
350			sk_OPENSSL_STRING_value(asn1pars_config.osk, i),
351			1, INT_MAX, &errstr);
352			if (errstr) {
353			BIO_printf(bio_err,
354			"'%s' is an invalid number: %s\n",
355			sk_OPENSSL_STRING_value(asn1pars_config.osk,
356			i), errstr);
357			continue;
358			}
359			tmpbuf += j;
360			tmplen -= j;
361			atmp = at;
362			ctmpbuf = tmpbuf;
363			at = d2i_ASN1_TYPE(NULL, &ctmpbuf, tmplen);
364			ASN1_TYPE_free(atmp);
365			if (!at) {
366			BIO_printf(bio_err, "Error parsing structure\n");
367			ERR_print_errors(bio_err);
368			goto end;
369			}
370			typ = ASN1_TYPE_get(at);
371			if ((typ == V_ASN1_OBJECT) \|\|
372			(typ == V_ASN1_NULL)) {
373			BIO_printf(bio_err, "Can't parse %s type\n",
374			typ == V_ASN1_NULL ? "NULL" : "OBJECT");
375			ERR_print_errors(bio_err);
376			goto end;
377			}
378			/* hmm... this is a little evil but it works */
379			tmpbuf = at->value.asn1_string->data;
380			tmplen = at->value.asn1_string->length;
381			}
382			str = (char *) tmpbuf;
383			num = tmplen;
384			}
385			if (asn1pars_config.offset >= num) {
386			BIO_printf(bio_err, "Error: offset too large\n");
387			goto end;
388			}
389			num -= asn1pars_config.offset;
390
391			if ((asn1pars_config.length == 0) \|\|
392			((long)asn1pars_config.length > num))
393			asn1pars_config.length = (unsigned int) num;
394			if (derout) {
395			if (BIO_write(derout, str + asn1pars_config.offset,
396			asn1pars_config.length) != (int)asn1pars_config.length) {
397			BIO_printf(bio_err, "Error writing output\n");
398			ERR_print_errors(bio_err);
399			goto end;
400			}
401			}
402			if (!asn1pars_config.noout &&
403			!ASN1_parse_dump(out,
404			(unsigned char *)&(str[asn1pars_config.offset]),
405			asn1pars_config.length, asn1pars_config.indent,
406			asn1pars_config.dump)) {
407			ERR_print_errors(bio_err);
408			goto end;
409			}
410			ret = 0;
411			end:
412			BIO_free(derout);
413			BIO_free(in);
414			BIO_free_all(out);
415			BIO_free(b64);
416			if (ret != 0)
417			ERR_print_errors(bio_err);
418			BUF_MEM_free(buf);
419			if (at != NULL)
420			ASN1_TYPE_free(at);
421			sk_OPENSSL_STRING_free(asn1pars_config.osk);
422			OBJ_cleanup();
423
424			return (ret);
425			}
426
427			static int
428			do_generate(BIO * bio, char genstr, char genconf, BUF_MEM * buf)
429			{
430			CONF *cnf = NULL;
431			int len;
432			long errline;
433			unsigned char *p;
434			ASN1_TYPE *atyp = NULL;
435
436			if (genconf) {
437			cnf = NCONF_new(NULL);
438			if (!NCONF_load(cnf, genconf, &errline))
439			goto conferr;
440			if (!genstr)
441			genstr = NCONF_get_string(cnf, "default", "asn1");
442			if (!genstr) {
443			BIO_printf(bio, "Can't find 'asn1' in '%s'\n", genconf);
444			goto err;
445			}
446			}
447			atyp = ASN1_generate_nconf(genstr, cnf);
448			NCONF_free(cnf);
449			cnf = NULL;
450
451			if (!atyp)
452			return -1;
453
454			len = i2d_ASN1_TYPE(atyp, NULL);
455			if (len <= 0)
456			goto err;
457
458			if (!BUF_MEM_grow(buf, len))
459			goto err;
460
461			p = (unsigned char *) buf->data;
462
463			i2d_ASN1_TYPE(atyp, &p);
464
465			ASN1_TYPE_free(atyp);
466			return len;
467
468			conferr:
469
470			if (errline > 0)
471			BIO_printf(bio, "Error on line %ld of config file '%s'\n",
472			errline, genconf);
473			else
474			BIO_printf(bio, "Error loading config file '%s'\n", genconf);
475
476			err:
477			NCONF_free(cnf);
478			ASN1_TYPE_free(atyp);
479
480			return -1;
481
482			}