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

/*
 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

/*
 * 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>
#include <openssl/asn1t.h>

typedef enum OPTION_choice {
    OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
    OPT_INFORM, OPT_IN, OPT_OUT, OPT_INDENT, OPT_NOOUT,
    OPT_OID, OPT_OFFSET, OPT_LENGTH, OPT_DUMP, OPT_DLIMIT,
    OPT_STRPARSE, OPT_GENSTR, OPT_GENCONF, OPT_STRICTPEM,
    OPT_ITEM
} OPTION_CHOICE;

OPTIONS asn1parse_options[] = {
    {"help", OPT_HELP, '-', "Display this summary"},
    {"inform", OPT_INFORM, 'F', "input format - one of DER PEM"},
    {"in", OPT_IN, '<', "input file"},
    {"out", OPT_OUT, '>', "output file (output format is always DER)"},
    {"i", OPT_INDENT, 0, "indents the output"},
    {"noout", OPT_NOOUT, 0, "do not produce any output"},
    {"offset", OPT_OFFSET, 'p', "offset into file"},
    {"length", OPT_LENGTH, 'p', "length of section in file"},
    {"oid", OPT_OID, '<', "file of extra oid definitions"},
    {"dump", OPT_DUMP, 0, "unknown data in hex form"},
    {"dlimit", OPT_DLIMIT, 'p',
     "dump the first arg bytes of unknown data in hex form"},
    {"strparse", OPT_STRPARSE, 's',
     "offset; a series of these can be used to 'dig'"},
    {OPT_MORE_STR, 0, 0, "into multiple ASN1 blob wrappings"},
    {"genstr", OPT_GENSTR, 's', "string to generate ASN1 structure from"},
    {"genconf", OPT_GENCONF, 's', "file to generate ASN1 structure from"},
    {OPT_MORE_STR, 0, 0, "(-inform  will be ignored)"},
    {"strictpem", OPT_STRICTPEM, 0,
     "do not attempt base64 decode outside PEM markers"},
    {"item", OPT_ITEM, 's', "item to parse and print"},
    {NULL}
};

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

int asn1parse_main(int argc, char **argv)
{
    ASN1_TYPE *at = NULL;
    BIO *in = NULL, *b64 = NULL, *derout = NULL;
    BUF_MEM *buf = NULL;
    STACK_OF(OPENSSL_STRING) *osk = NULL;
    char *genstr = NULL, *genconf = NULL;
    char *infile = NULL, *oidfile = NULL, *derfile = NULL;
    unsigned char *str = NULL;
    char *name = NULL, *header = NULL, *prog;
    const unsigned char *ctmpbuf;
    int indent = 0, noout = 0, dump = 0, strictpem = 0, informat = FORMAT_PEM;
    int offset = 0, ret = 1, i, j;
    long num, tmplen;
    unsigned char *tmpbuf;
    unsigned int length = 0;
    OPTION_CHOICE o;
    const ASN1_ITEM *it = NULL;

    prog = opt_init(argc, argv, asn1parse_options);

    if ((osk = sk_OPENSSL_STRING_new_null()) == NULL) {
        BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
        goto end;
    }

    while ((o = opt_next()) != OPT_EOF) {
        switch (o) {
        case OPT_EOF:
        case OPT_ERR:
 opthelp:
            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
            goto end;
        case OPT_HELP:
            opt_help(asn1parse_options);
            ret = 0;
            goto end;
        case OPT_INFORM:
            if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
                goto opthelp;
            break;
        case OPT_IN:
            infile = opt_arg();
            break;
        case OPT_OUT:
            derfile = opt_arg();
            break;
        case OPT_INDENT:
            indent = 1;
            break;
        case OPT_NOOUT:
            noout = 1;
            break;
        case OPT_OID:
            oidfile = opt_arg();
            break;
        case OPT_OFFSET:
            offset = strtol(opt_arg(), NULL, 0);
            break;
        case OPT_LENGTH:
            length = atoi(opt_arg());
            break;
        case OPT_DUMP:
            dump = -1;
            break;
        case OPT_DLIMIT:
            dump = atoi(opt_arg());
            break;
        case OPT_STRPARSE:
            sk_OPENSSL_STRING_push(osk, opt_arg());
            break;
        case OPT_GENSTR:
            genstr = opt_arg();
            break;
        case OPT_GENCONF:
            genconf = opt_arg();
            break;
        case OPT_STRICTPEM:
            strictpem = 1;
            informat = FORMAT_PEM;
            break;
        case OPT_ITEM:
            it = ASN1_ITEM_lookup(opt_arg());
            if (it == NULL) {
                size_t tmp;

                BIO_printf(bio_err, "Unknown item name %s\n", opt_arg());
                BIO_puts(bio_err, "Supported types:\n");
                for (tmp = 0;; tmp++) {
                    it = ASN1_ITEM_get(tmp);
                    if (it == NULL)
                        break;
                    BIO_printf(bio_err, "    %s\n", it->sname);
                }
                goto end;
            }
            break;
        }
    }
    argc = opt_num_rest();
    if (argc != 0)
        goto opthelp;

    if (oidfile != NULL) {
        in = bio_open_default(oidfile, 'r', FORMAT_TEXT);
        if (in == NULL)
            goto end;
        OBJ_create_objects(in);
        BIO_free(in);
    }

    if ((in = bio_open_default(infile, 'r', informat)) == NULL)
        goto end;

    if (derfile && (derout = bio_open_default(derfile, 'w', FORMAT_ASN1)) == NULL)
        goto end;

    if (strictpem) {
        if (PEM_read_bio(in, &name, &header, &str, &num) !=
            1) {
            BIO_printf(bio_err, "Error reading PEM file\n");
            ERR_print_errors(bio_err);
            goto end;
        }
    } else {

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

    }

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

    if (sk_OPENSSL_STRING_num(osk)) {
        tmpbuf = str;
        tmplen = num;
        for (i = 0; i < sk_OPENSSL_STRING_num(osk); i++) {
            ASN1_TYPE *atmp;
            int typ;
            j = atoi(sk_OPENSSL_STRING_value(osk, i));
            if (j == 0) {
                BIO_printf(bio_err, "'%s' is an invalid number\n",
                           sk_OPENSSL_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_BOOLEAN)
                || (typ == V_ASN1_NULL)) {
                BIO_printf(bio_err, "Can't parse %s type\n", ASN1_tag2str(typ));
                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 = 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) {
        const unsigned char *p = str + offset;

        if (it != NULL) {
            ASN1_VALUE *value = ASN1_item_d2i(NULL, &p, length, it);
            if (value == NULL) {
                BIO_printf(bio_err, "Error parsing item %s\n", it->sname);
                ERR_print_errors(bio_err);
                goto end;
            }
            ASN1_item_print(bio_out, value, 0, it, NULL);
            ASN1_item_free(value, it);
        } else {
            if (!ASN1_parse_dump(bio_out, p, length, indent, dump)) {
                ERR_print_errors(bio_err);
                goto end;
            }
        }
    }
    ret = 0;
 end:
    BIO_free(derout);
    BIO_free(in);
    BIO_free(b64);
    if (ret != 0)
        ERR_print_errors(bio_err);
    BUF_MEM_free(buf);
    OPENSSL_free(name);
    OPENSSL_free(header);
    if (strictpem)
        OPENSSL_free(str);
    ASN1_TYPE_free(at);
    sk_OPENSSL_STRING_free(osk);
    return (ret);
}

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

    if (genconf) {
        if ((cnf = app_load_config(genconf)) == NULL)
            goto err;
        if (!genstr)
            genstr = NCONF_get_string(cnf, "default", "asn1");
        if (!genstr) {
            BIO_printf(bio_err, "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;

 err:
    NCONF_free(cnf);
    ASN1_TYPE_free(atyp);
    return -1;
}
Commit	Line	Data
846e33c7 RS	1	/*
846e33c7 RS	2	* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
0f113f3e	3	*
846e33c7 RS	4	* Licensed under the OpenSSL license (the "License"). You may not use
	5	* this file except in compliance with the License. You can obtain a copy
	6	* in the file LICENSE in the source distribution or at
	7	* https://www.openssl.org/source/license.html
d02b48c6 RE	8	*/
d02b48c6 RE	9
0f113f3e MC	10	/*
	11	* A nice addition from Dr Stephen Henson <steve@openssl.org> to add the
	12	* -strparse option which parses nested binary structures
dfeab068 RE	13	*/
dfeab068 RE	14
d02b48c6 RE	15	#include <stdio.h>
	16	#include <stdlib.h>
	17	#include <string.h>
	18	#include "apps.h"
ec577822 BM	19	#include <openssl/err.h>
	20	#include <openssl/evp.h>
	21	#include <openssl/x509.h>
	22	#include <openssl/pem.h>
5fb10059	23	#include <openssl/asn1t.h>
d02b48c6	24
7e1b7485 RS	25	typedef enum OPTION_choice {
	26	OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
	27	OPT_INFORM, OPT_IN, OPT_OUT, OPT_INDENT, OPT_NOOUT,
	28	OPT_OID, OPT_OFFSET, OPT_LENGTH, OPT_DUMP, OPT_DLIMIT,
5fb10059 DSH	29	OPT_STRPARSE, OPT_GENSTR, OPT_GENCONF, OPT_STRICTPEM,
5fb10059 DSH	30	OPT_ITEM
7e1b7485 RS	31	} OPTION_CHOICE;
	32
	33	OPTIONS asn1parse_options[] = {
	34	{"help", OPT_HELP, '-', "Display this summary"},
	35	{"inform", OPT_INFORM, 'F', "input format - one of DER PEM"},
	36	{"in", OPT_IN, '<', "input file"},
	37	{"out", OPT_OUT, '>', "output file (output format is always DER)"},
6755ff11	38	{"i", OPT_INDENT, 0, "indents the output"},
16e1b281	39	{"noout", OPT_NOOUT, 0, "do not produce any output"},
7e1b7485 RS	40	{"offset", OPT_OFFSET, 'p', "offset into file"},
	41	{"length", OPT_LENGTH, 'p', "length of section in file"},
	42	{"oid", OPT_OID, '<', "file of extra oid definitions"},
	43	{"dump", OPT_DUMP, 0, "unknown data in hex form"},
	44	{"dlimit", OPT_DLIMIT, 'p',
	45	"dump the first arg bytes of unknown data in hex form"},
	46	{"strparse", OPT_STRPARSE, 's',
	47	"offset; a series of these can be used to 'dig'"},
	48	{OPT_MORE_STR, 0, 0, "into multiple ASN1 blob wrappings"},
	49	{"genstr", OPT_GENSTR, 's', "string to generate ASN1 structure from"},
	50	{"genconf", OPT_GENCONF, 's', "file to generate ASN1 structure from"},
	51	{OPT_MORE_STR, 0, 0, "(-inform will be ignored)"},
	52	{"strictpem", OPT_STRICTPEM, 0,
	53	"do not attempt base64 decode outside PEM markers"},
5fb10059	54	{"item", OPT_ITEM, 's', "item to parse and print"},
7e1b7485 RS	55	{NULL}
7e1b7485 RS	56	};
667ac4ec	57
cc696296	58	static int do_generate(char genstr, const char genconf, BUF_MEM *buf);
9ea1b878	59
7e1b7485	60	int asn1parse_main(int argc, char **argv)
0f113f3e	61	{
7e1b7485 RS	62	ASN1_TYPE *at = NULL;
7e1b7485 RS	63	BIO in = NULL, b64 = NULL, *derout = NULL;
0f113f3e MC	64	BUF_MEM *buf = NULL;
0f113f3e MC	65	STACK_OF(OPENSSL_STRING) *osk = NULL;
7e1b7485	66	char genstr = NULL, genconf = NULL;
d012c1a1 MC	67	char infile = NULL, oidfile = NULL, *derfile = NULL;
d012c1a1 MC	68	unsigned char *str = NULL;
7e1b7485 RS	69	char name = NULL, header = NULL, *prog;
	70	const unsigned char *ctmpbuf;
	71	int indent = 0, noout = 0, dump = 0, strictpem = 0, informat = FORMAT_PEM;
	72	int offset = 0, ret = 1, i, j;
	73	long num, tmplen;
	74	unsigned char *tmpbuf;
	75	unsigned int length = 0;
	76	OPTION_CHOICE o;
5fb10059	77	const ASN1_ITEM *it = NULL;
0f113f3e	78
7e1b7485	79	prog = opt_init(argc, argv, asn1parse_options);
0f113f3e	80
0f113f3e	81	if ((osk = sk_OPENSSL_STRING_new_null()) == NULL) {
7e1b7485	82	BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
0f113f3e MC	83	goto end;
0f113f3e MC	84	}
7e1b7485 RS	85
	86	while ((o = opt_next()) != OPT_EOF) {
	87	switch (o) {
	88	case OPT_EOF:
	89	case OPT_ERR:
	90	opthelp:
	91	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
	92	goto end;
	93	case OPT_HELP:
	94	opt_help(asn1parse_options);
	95	ret = 0;
	96	goto end;
	97	case OPT_INFORM:
	98	if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
	99	goto opthelp;
2d4deb25	100	break;
7e1b7485 RS	101	case OPT_IN:
	102	infile = opt_arg();
	103	break;
	104	case OPT_OUT:
	105	derfile = opt_arg();
	106	break;
	107	case OPT_INDENT:
0f113f3e	108	indent = 1;
7e1b7485 RS	109	break;
7e1b7485 RS	110	case OPT_NOOUT:
0f113f3e	111	noout = 1;
7e1b7485 RS	112	break;
	113	case OPT_OID:
	114	oidfile = opt_arg();
	115	break;
	116	case OPT_OFFSET:
	117	offset = strtol(opt_arg(), NULL, 0);
	118	break;
	119	case OPT_LENGTH:
	120	length = atoi(opt_arg());
	121	break;
	122	case OPT_DUMP:
0f113f3e	123	dump = -1;
7e1b7485 RS	124	break;
	125	case OPT_DLIMIT:
	126	dump = atoi(opt_arg());
	127	break;
	128	case OPT_STRPARSE:
	129	sk_OPENSSL_STRING_push(osk, opt_arg());
	130	break;
	131	case OPT_GENSTR:
	132	genstr = opt_arg();
	133	break;
	134	case OPT_GENCONF:
	135	genconf = opt_arg();
	136	break;
	137	case OPT_STRICTPEM:
0f113f3e MC	138	strictpem = 1;
0f113f3e MC	139	informat = FORMAT_PEM;
0f113f3e	140	break;
5fb10059 DSH	141	case OPT_ITEM:
	142	it = ASN1_ITEM_lookup(opt_arg());
	143	if (it == NULL) {
	144	size_t tmp;
	145
	146	BIO_printf(bio_err, "Unknown item name %s\n", opt_arg());
	147	BIO_puts(bio_err, "Supported types:\n");
	148	for (tmp = 0;; tmp++) {
	149	it = ASN1_ITEM_get(tmp);
	150	if (it == NULL)
	151	break;
	152	BIO_printf(bio_err, " %s\n", it->sname);
	153	}
	154	goto end;
	155	}
	156	break;
0f113f3e	157	}
0f113f3e	158	}
7e1b7485	159	argc = opt_num_rest();
03358517 KR	160	if (argc != 0)
03358517 KR	161	goto opthelp;
58964a49	162
0f113f3e	163	if (oidfile != NULL) {
bdd58d98	164	in = bio_open_default(oidfile, 'r', FORMAT_TEXT);
7e1b7485	165	if (in == NULL)
0f113f3e	166	goto end;
0f113f3e	167	OBJ_create_objects(in);
7e1b7485	168	BIO_free(in);
0f113f3e MC	169	}
0f113f3e MC	170
bdd58d98	171	if ((in = bio_open_default(infile, 'r', informat)) == NULL)
7e1b7485	172	goto end;
0f113f3e	173
bdd58d98	174	if (derfile && (derout = bio_open_default(derfile, 'w', FORMAT_ASN1)) == NULL)
7e1b7485	175	goto end;
0f113f3e MC	176
0f113f3e MC	177	if (strictpem) {
d012c1a1	178	if (PEM_read_bio(in, &name, &header, &str, &num) !=
0f113f3e MC	179	1) {
	180	BIO_printf(bio_err, "Error reading PEM file\n");
	181	ERR_print_errors(bio_err);
	182	goto end;
	183	}
	184	} else {
	185
	186	if ((buf = BUF_MEM_new()) == NULL)
	187	goto end;
	188	if (!BUF_MEM_grow(buf, BUFSIZ * 8))
	189	goto end; /* Pre-allocate :-) */
	190
	191	if (genstr \|\| genconf) {
ecf3a1fb	192	num = do_generate(genstr, genconf, buf);
0f113f3e MC	193	if (num < 0) {
	194	ERR_print_errors(bio_err);
	195	goto end;
	196	}
	197	}
	198
	199	else {
	200
	201	if (informat == FORMAT_PEM) {
	202	BIO *tmp;
	203
	204	if ((b64 = BIO_new(BIO_f_base64())) == NULL)
	205	goto end;
	206	BIO_push(b64, in);
	207	tmp = in;
	208	in = b64;
	209	b64 = tmp;
	210	}
	211
	212	num = 0;
	213	for (;;) {
	214	if (!BUF_MEM_grow(buf, (int)num + BUFSIZ))
	215	goto end;
	216	i = BIO_read(in, &(buf->data[num]), BUFSIZ);
	217	if (i <= 0)
	218	break;
	219	num += i;
	220	}
	221	}
d012c1a1	222	str = (unsigned char *)buf->data;
0f113f3e MC	223
	224	}
	225
	226	/* If any structs to parse go through in sequence */
	227
	228	if (sk_OPENSSL_STRING_num(osk)) {
d012c1a1	229	tmpbuf = str;
0f113f3e MC	230	tmplen = num;
	231	for (i = 0; i < sk_OPENSSL_STRING_num(osk); i++) {
	232	ASN1_TYPE *atmp;
	233	int typ;
	234	j = atoi(sk_OPENSSL_STRING_value(osk, i));
	235	if (j == 0) {
	236	BIO_printf(bio_err, "'%s' is an invalid number\n",
	237	sk_OPENSSL_STRING_value(osk, i));
	238	continue;
	239	}
	240	tmpbuf += j;
	241	tmplen -= j;
	242	atmp = at;
	243	ctmpbuf = tmpbuf;
	244	at = d2i_ASN1_TYPE(NULL, &ctmpbuf, tmplen);
	245	ASN1_TYPE_free(atmp);
	246	if (!at) {
	247	BIO_printf(bio_err, "Error parsing structure\n");
	248	ERR_print_errors(bio_err);
	249	goto end;
	250	}
	251	typ = ASN1_TYPE_get(at);
	252	if ((typ == V_ASN1_OBJECT)
e58c4d3c	253	\|\| (typ == V_ASN1_BOOLEAN)
0f113f3e	254	\|\| (typ == V_ASN1_NULL)) {
e58c4d3c	255	BIO_printf(bio_err, "Can't parse %s type\n", ASN1_tag2str(typ));
0f113f3e MC	256	ERR_print_errors(bio_err);
	257	goto end;
	258	}
	259	/* hmm... this is a little evil but it works */
	260	tmpbuf = at->value.asn1_string->data;
	261	tmplen = at->value.asn1_string->length;
	262	}
d012c1a1	263	str = tmpbuf;
0f113f3e MC	264	num = tmplen;
	265	}
	266
	267	if (offset >= num) {
	268	BIO_printf(bio_err, "Error: offset too large\n");
	269	goto end;
	270	}
	271
	272	num -= offset;
	273
	274	if ((length == 0) \|\| ((long)length > num))
	275	length = (unsigned int)num;
	276	if (derout) {
	277	if (BIO_write(derout, str + offset, length) != (int)length) {
	278	BIO_printf(bio_err, "Error writing output\n");
	279	ERR_print_errors(bio_err);
	280	goto end;
	281	}
	282	}
5fb10059 DSH	283	if (!noout) {
	284	const unsigned char *p = str + offset;
	285
	286	if (it != NULL) {
	287	ASN1_VALUE *value = ASN1_item_d2i(NULL, &p, length, it);
	288	if (value == NULL) {
	289	BIO_printf(bio_err, "Error parsing item %s\n", it->sname);
	290	ERR_print_errors(bio_err);
	291	goto end;
	292	}
	293	ASN1_item_print(bio_out, value, 0, it, NULL);
	294	ASN1_item_free(value, it);
	295	} else {
	296	if (!ASN1_parse_dump(bio_out, p, length, indent, dump)) {
	297	ERR_print_errors(bio_err);
	298	goto end;
	299	}
	300	}
0f113f3e MC	301	}
	302	ret = 0;
	303	end:
	304	BIO_free(derout);
ca3a82c3	305	BIO_free(in);
ca3a82c3	306	BIO_free(b64);
0f113f3e MC	307	if (ret != 0)
0f113f3e MC	308	ERR_print_errors(bio_err);
25aaa98a	309	BUF_MEM_free(buf);
b548a1f1 RS	310	OPENSSL_free(name);
	311	OPENSSL_free(header);
	312	if (strictpem)
0f113f3e	313	OPENSSL_free(str);
2ace7450	314	ASN1_TYPE_free(at);
25aaa98a	315	sk_OPENSSL_STRING_free(osk);
7e1b7485	316	return (ret);
0f113f3e	317	}
d02b48c6	318
cc696296	319	static int do_generate(char genstr, const char genconf, BUF_MEM *buf)
0f113f3e MC	320	{
	321	CONF *cnf = NULL;
	322	int len;
0f113f3e MC	323	unsigned char *p;
0f113f3e MC	324	ASN1_TYPE *atyp = NULL;
9ea1b878	325
0f113f3e	326	if (genconf) {
cc01d217 RS	327	if ((cnf = app_load_config(genconf)) == NULL)
cc01d217 RS	328	goto err;
0f113f3e MC	329	if (!genstr)
	330	genstr = NCONF_get_string(cnf, "default", "asn1");
	331	if (!genstr) {
ecf3a1fb	332	BIO_printf(bio_err, "Can't find 'asn1' in '%s'\n", genconf);
0f113f3e MC	333	goto err;
	334	}
	335	}
9ea1b878	336
0f113f3e MC	337	atyp = ASN1_generate_nconf(genstr, cnf);
	338	NCONF_free(cnf);
	339	cnf = NULL;
9ea1b878	340
0f113f3e MC	341	if (!atyp)
0f113f3e MC	342	return -1;
9ea1b878	343
0f113f3e	344	len = i2d_ASN1_TYPE(atyp, NULL);
9ea1b878	345
0f113f3e MC	346	if (len <= 0)
0f113f3e MC	347	goto err;
9ea1b878	348
0f113f3e MC	349	if (!BUF_MEM_grow(buf, len))
0f113f3e MC	350	goto err;
9ea1b878	351
0f113f3e	352	p = (unsigned char *)buf->data;
9ea1b878	353
0f113f3e	354	i2d_ASN1_TYPE(atyp, &p);
9ea1b878	355
0f113f3e MC	356	ASN1_TYPE_free(atyp);
0f113f3e MC	357	return len;
9ea1b878	358
0f113f3e MC	359	err:
	360	NCONF_free(cnf);
	361	ASN1_TYPE_free(atyp);
0f113f3e	362	return -1;
0f113f3e	363	}