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

/*
 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (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
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "apps.h"
#include "progs.h"
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#include <openssl/asn1t.h>

DEFINE_STACK_OF(ASN1_OBJECT)

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;

const OPTIONS asn1parse_options[] = {
    OPT_SECTION("General"),
    {"help", OPT_HELP, '-', "Display this summary"},
    {"oid", OPT_OID, '<', "file of extra oid definitions"},

    OPT_SECTION("I/O"),
    {"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)"},
    {"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"},
    {"strparse", OPT_STRPARSE, 'p',
     "offset; a series of these can be used to 'dig'"},
    {"genstr", OPT_GENSTR, 's', "string to generate ASN1 structure from"},
    {OPT_MORE_STR, 0, 0, "into multiple ASN1 blob wrappings"},
    {"genconf", OPT_GENCONF, 's', "file to generate ASN1 structure from"},
    {"strictpem", OPT_STRICTPEM, 0,
     "do not attempt base64 decode outside PEM markers"},
    {"item", OPT_ITEM, 's', "item to parse and print"},
    {OPT_MORE_STR, 0, 0, "(-inform  will be ignored)"},

    OPT_SECTION("Formatting"),
    {"i", OPT_INDENT, 0, "indents the output"},
    {"dump", OPT_DUMP, 0, "unknown data in hex form"},
    {"dlimit", OPT_DLIMIT, 'p',
     "dump the first arg bytes of unknown data in hex form"},
    {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 = strtol(opt_arg(), NULL, 0);
            break;
        case OPT_DUMP:
            dump = -1;
            break;
        case OPT_DLIMIT:
            dump = strtol(opt_arg(), NULL, 0);
            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 ((buf = BUF_MEM_new()) == 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;
        }
        buf->data = (char *)str;
        buf->length = buf->max = num;
    } else {
        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, 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 = strtol(sk_OPENSSL_STRING_value(osk, i), NULL, 0);
            if (j <= 0 || j >= tmplen) {
                BIO_printf(bio_err, "'%s' is out of range\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 < 0 || offset >= num) {
        BIO_printf(bio_err, "Error: offset out of range\n");
        goto end;
    }

    num -= offset;

    if (length == 0 || length > (unsigned int)num)
        length = (unsigned int)num;
    if (derout != NULL) {
        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);
    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 != NULL) {
        if ((cnf = app_load_config(genconf)) == NULL)
            goto err;
        if (genstr == NULL)
            genstr = NCONF_get_string(cnf, "default", "asn1");
        if (genstr == NULL) {
            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 == NULL)
        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	1	/*
454afd98	2	* Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
0f113f3e	3	*
dffa7520	4	* Licensed under the Apache License 2.0 (the "License"). You may not use
846e33c7 RS	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	*/
	9
	10	#include <stdio.h>
	11	#include <stdlib.h>
	12	#include <string.h>
	13	#include "apps.h"
dab2cd68	14	#include "progs.h"
ec577822 BM	15	#include <openssl/err.h>
	16	#include <openssl/evp.h>
	17	#include <openssl/x509.h>
	18	#include <openssl/pem.h>
5fb10059	19	#include <openssl/asn1t.h>
d02b48c6	20
852c2ed2	21	DEFINE_STACK_OF(ASN1_OBJECT)
852c2ed2	22
7e1b7485 RS	23	typedef enum OPTION_choice {
	24	OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
	25	OPT_INFORM, OPT_IN, OPT_OUT, OPT_INDENT, OPT_NOOUT,
	26	OPT_OID, OPT_OFFSET, OPT_LENGTH, OPT_DUMP, OPT_DLIMIT,
5fb10059 DSH	27	OPT_STRPARSE, OPT_GENSTR, OPT_GENCONF, OPT_STRICTPEM,
5fb10059 DSH	28	OPT_ITEM
7e1b7485 RS	29	} OPTION_CHOICE;
7e1b7485 RS	30
44c83ebd	31	const OPTIONS asn1parse_options[] = {
5388f986	32	OPT_SECTION("General"),
7e1b7485	33	{"help", OPT_HELP, '-', "Display this summary"},
5388f986 RS	34	{"oid", OPT_OID, '<', "file of extra oid definitions"},
	35
	36	OPT_SECTION("I/O"),
7e1b7485 RS	37	{"inform", OPT_INFORM, 'F', "input format - one of DER PEM"},
	38	{"in", OPT_IN, '<', "input file"},
	39	{"out", OPT_OUT, '>', "output file (output format is always DER)"},
16e1b281	40	{"noout", OPT_NOOUT, 0, "do not produce any output"},
7e1b7485 RS	41	{"offset", OPT_OFFSET, 'p', "offset into file"},
7e1b7485 RS	42	{"length", OPT_LENGTH, 'p', "length of section in file"},
b998745a	43	{"strparse", OPT_STRPARSE, 'p',
7e1b7485	44	"offset; a series of these can be used to 'dig'"},
7e1b7485	45	{"genstr", OPT_GENSTR, 's', "string to generate ASN1 structure from"},
5388f986	46	{OPT_MORE_STR, 0, 0, "into multiple ASN1 blob wrappings"},
7e1b7485	47	{"genconf", OPT_GENCONF, 's', "file to generate ASN1 structure from"},
7e1b7485 RS	48	{"strictpem", OPT_STRICTPEM, 0,
7e1b7485 RS	49	"do not attempt base64 decode outside PEM markers"},
5fb10059	50	{"item", OPT_ITEM, 's', "item to parse and print"},
5388f986 RS	51	{OPT_MORE_STR, 0, 0, "(-inform will be ignored)"},
	52
	53	OPT_SECTION("Formatting"),
	54	{"i", OPT_INDENT, 0, "indents the output"},
	55	{"dump", OPT_DUMP, 0, "unknown data in hex form"},
	56	{"dlimit", OPT_DLIMIT, 'p',
	57	"dump the first arg bytes of unknown data in hex form"},
7e1b7485 RS	58	{NULL}
7e1b7485 RS	59	};
667ac4ec	60
cc696296	61	static int do_generate(char genstr, const char genconf, BUF_MEM *buf);
9ea1b878	62
7e1b7485	63	int asn1parse_main(int argc, char **argv)
0f113f3e	64	{
7e1b7485 RS	65	ASN1_TYPE *at = NULL;
7e1b7485 RS	66	BIO in = NULL, b64 = NULL, *derout = NULL;
0f113f3e MC	67	BUF_MEM *buf = NULL;
0f113f3e MC	68	STACK_OF(OPENSSL_STRING) *osk = NULL;
7e1b7485	69	char genstr = NULL, genconf = NULL;
d012c1a1 MC	70	char infile = NULL, oidfile = NULL, *derfile = NULL;
d012c1a1 MC	71	unsigned char *str = NULL;
7e1b7485 RS	72	char name = NULL, header = NULL, *prog;
	73	const unsigned char *ctmpbuf;
	74	int indent = 0, noout = 0, dump = 0, strictpem = 0, informat = FORMAT_PEM;
	75	int offset = 0, ret = 1, i, j;
	76	long num, tmplen;
	77	unsigned char *tmpbuf;
	78	unsigned int length = 0;
	79	OPTION_CHOICE o;
5fb10059	80	const ASN1_ITEM *it = NULL;
0f113f3e	81
7e1b7485	82	prog = opt_init(argc, argv, asn1parse_options);
0f113f3e	83
0f113f3e	84	if ((osk = sk_OPENSSL_STRING_new_null()) == NULL) {
7e1b7485	85	BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
0f113f3e MC	86	goto end;
0f113f3e MC	87	}
7e1b7485 RS	88
	89	while ((o = opt_next()) != OPT_EOF) {
	90	switch (o) {
	91	case OPT_EOF:
	92	case OPT_ERR:
	93	opthelp:
	94	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
	95	goto end;
	96	case OPT_HELP:
	97	opt_help(asn1parse_options);
	98	ret = 0;
	99	goto end;
	100	case OPT_INFORM:
	101	if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
	102	goto opthelp;
2d4deb25	103	break;
7e1b7485 RS	104	case OPT_IN:
	105	infile = opt_arg();
	106	break;
	107	case OPT_OUT:
	108	derfile = opt_arg();
	109	break;
	110	case OPT_INDENT:
0f113f3e	111	indent = 1;
7e1b7485 RS	112	break;
7e1b7485 RS	113	case OPT_NOOUT:
0f113f3e	114	noout = 1;
7e1b7485 RS	115	break;
	116	case OPT_OID:
	117	oidfile = opt_arg();
	118	break;
	119	case OPT_OFFSET:
	120	offset = strtol(opt_arg(), NULL, 0);
	121	break;
	122	case OPT_LENGTH:
18ada952	123	length = strtol(opt_arg(), NULL, 0);
7e1b7485 RS	124	break;
7e1b7485 RS	125	case OPT_DUMP:
0f113f3e	126	dump = -1;
7e1b7485 RS	127	break;
7e1b7485 RS	128	case OPT_DLIMIT:
18ada952	129	dump = strtol(opt_arg(), NULL, 0);
7e1b7485 RS	130	break;
	131	case OPT_STRPARSE:
	132	sk_OPENSSL_STRING_push(osk, opt_arg());
	133	break;
	134	case OPT_GENSTR:
	135	genstr = opt_arg();
	136	break;
	137	case OPT_GENCONF:
	138	genconf = opt_arg();
	139	break;
	140	case OPT_STRICTPEM:
0f113f3e MC	141	strictpem = 1;
0f113f3e MC	142	informat = FORMAT_PEM;
0f113f3e	143	break;
5fb10059 DSH	144	case OPT_ITEM:
	145	it = ASN1_ITEM_lookup(opt_arg());
	146	if (it == NULL) {
	147	size_t tmp;
	148
	149	BIO_printf(bio_err, "Unknown item name %s\n", opt_arg());
	150	BIO_puts(bio_err, "Supported types:\n");
	151	for (tmp = 0;; tmp++) {
	152	it = ASN1_ITEM_get(tmp);
	153	if (it == NULL)
	154	break;
	155	BIO_printf(bio_err, " %s\n", it->sname);
	156	}
	157	goto end;
	158	}
	159	break;
0f113f3e	160	}
0f113f3e	161	}
7e1b7485	162	argc = opt_num_rest();
03358517 KR	163	if (argc != 0)
03358517 KR	164	goto opthelp;
58964a49	165
0f113f3e	166	if (oidfile != NULL) {
bdd58d98	167	in = bio_open_default(oidfile, 'r', FORMAT_TEXT);
7e1b7485	168	if (in == NULL)
0f113f3e	169	goto end;
0f113f3e	170	OBJ_create_objects(in);
7e1b7485	171	BIO_free(in);
0f113f3e MC	172	}
0f113f3e MC	173
bdd58d98	174	if ((in = bio_open_default(infile, 'r', informat)) == NULL)
7e1b7485	175	goto end;
0f113f3e	176
bdd58d98	177	if (derfile && (derout = bio_open_default(derfile, 'w', FORMAT_ASN1)) == NULL)
7e1b7485	178	goto end;
0f113f3e	179
4f29f3a2 RL	180	if ((buf = BUF_MEM_new()) == NULL)
4f29f3a2 RL	181	goto end;
0f113f3e	182	if (strictpem) {
4f29f3a2	183	if (PEM_read_bio(in, &name, &header, &str, &num) != 1) {
0f113f3e MC	184	BIO_printf(bio_err, "Error reading PEM file\n");
	185	ERR_print_errors(bio_err);
	186	goto end;
	187	}
4f29f3a2 RL	188	buf->data = (char *)str;
4f29f3a2 RL	189	buf->length = buf->max = num;
0f113f3e	190	} else {
0f113f3e MC	191	if (!BUF_MEM_grow(buf, BUFSIZ * 8))
	192	goto end; /* Pre-allocate :-) */
	193
	194	if (genstr \|\| genconf) {
ecf3a1fb	195	num = do_generate(genstr, genconf, buf);
0f113f3e MC	196	if (num < 0) {
	197	ERR_print_errors(bio_err);
	198	goto end;
	199	}
2234212c	200	} else {
0f113f3e MC	201
	202	if (informat == FORMAT_PEM) {
	203	BIO *tmp;
	204
	205	if ((b64 = BIO_new(BIO_f_base64())) == NULL)
	206	goto end;
	207	BIO_push(b64, in);
	208	tmp = in;
	209	in = b64;
	210	b64 = tmp;
	211	}
	212
	213	num = 0;
	214	for (;;) {
21db0e1a	215	if (!BUF_MEM_grow(buf, num + BUFSIZ))
0f113f3e MC	216	goto end;
	217	i = BIO_read(in, &(buf->data[num]), BUFSIZ);
	218	if (i <= 0)
	219	break;
	220	num += i;
	221	}
	222	}
d012c1a1	223	str = (unsigned char *)buf->data;
0f113f3e MC	224
	225	}
	226
	227	/* If any structs to parse go through in sequence */
	228
	229	if (sk_OPENSSL_STRING_num(osk)) {
d012c1a1	230	tmpbuf = str;
0f113f3e MC	231	tmplen = num;
	232	for (i = 0; i < sk_OPENSSL_STRING_num(osk); i++) {
	233	ASN1_TYPE *atmp;
	234	int typ;
18ada952	235	j = strtol(sk_OPENSSL_STRING_value(osk, i), NULL, 0);
752837e0	236	if (j <= 0 \|\| j >= tmplen) {
b998745a	237	BIO_printf(bio_err, "'%s' is out of range\n",
0f113f3e MC	238	sk_OPENSSL_STRING_value(osk, i));
	239	continue;
	240	}
	241	tmpbuf += j;
	242	tmplen -= j;
	243	atmp = at;
	244	ctmpbuf = tmpbuf;
	245	at = d2i_ASN1_TYPE(NULL, &ctmpbuf, tmplen);
	246	ASN1_TYPE_free(atmp);
	247	if (!at) {
	248	BIO_printf(bio_err, "Error parsing structure\n");
	249	ERR_print_errors(bio_err);
	250	goto end;
	251	}
	252	typ = ASN1_TYPE_get(at);
	253	if ((typ == V_ASN1_OBJECT)
e58c4d3c	254	\|\| (typ == V_ASN1_BOOLEAN)
0f113f3e	255	\|\| (typ == V_ASN1_NULL)) {
e58c4d3c	256	BIO_printf(bio_err, "Can't parse %s type\n", ASN1_tag2str(typ));
0f113f3e MC	257	ERR_print_errors(bio_err);
	258	goto end;
	259	}
	260	/* hmm... this is a little evil but it works */
	261	tmpbuf = at->value.asn1_string->data;
	262	tmplen = at->value.asn1_string->length;
	263	}
d012c1a1	264	str = tmpbuf;
0f113f3e MC	265	num = tmplen;
	266	}
	267
16e1eea6	268	if (offset < 0 \|\| offset >= num) {
1518c55a	269	BIO_printf(bio_err, "Error: offset out of range\n");
0f113f3e MC	270	goto end;
	271	}
	272
	273	num -= offset;
	274
16e1eea6	275	if (length == 0 \|\| length > (unsigned int)num)
0f113f3e	276	length = (unsigned int)num;
2234212c	277	if (derout != NULL) {
0f113f3e MC	278	if (BIO_write(derout, str + offset, length) != (int)length) {
	279	BIO_printf(bio_err, "Error writing output\n");
	280	ERR_print_errors(bio_err);
	281	goto end;
	282	}
	283	}
5fb10059 DSH	284	if (!noout) {
	285	const unsigned char *p = str + offset;
	286
	287	if (it != NULL) {
	288	ASN1_VALUE *value = ASN1_item_d2i(NULL, &p, length, it);
	289	if (value == NULL) {
	290	BIO_printf(bio_err, "Error parsing item %s\n", it->sname);
	291	ERR_print_errors(bio_err);
	292	goto end;
	293	}
	294	ASN1_item_print(bio_out, value, 0, it, NULL);
	295	ASN1_item_free(value, it);
	296	} else {
	297	if (!ASN1_parse_dump(bio_out, p, length, indent, dump)) {
	298	ERR_print_errors(bio_err);
	299	goto end;
	300	}
	301	}
0f113f3e MC	302	}
	303	ret = 0;
	304	end:
	305	BIO_free(derout);
ca3a82c3	306	BIO_free(in);
ca3a82c3	307	BIO_free(b64);
0f113f3e MC	308	if (ret != 0)
0f113f3e MC	309	ERR_print_errors(bio_err);
25aaa98a	310	BUF_MEM_free(buf);
b548a1f1 RS	311	OPENSSL_free(name);
b548a1f1 RS	312	OPENSSL_free(header);
2ace7450	313	ASN1_TYPE_free(at);
25aaa98a	314	sk_OPENSSL_STRING_free(osk);
26a7d938	315	return ret;
0f113f3e	316	}
d02b48c6	317
cc696296	318	static int do_generate(char genstr, const char genconf, BUF_MEM *buf)
0f113f3e MC	319	{
	320	CONF *cnf = NULL;
	321	int len;
0f113f3e MC	322	unsigned char *p;
0f113f3e MC	323	ASN1_TYPE *atyp = NULL;
9ea1b878	324
2234212c	325	if (genconf != NULL) {
cc01d217 RS	326	if ((cnf = app_load_config(genconf)) == NULL)
cc01d217 RS	327	goto err;
2234212c	328	if (genstr == NULL)
0f113f3e	329	genstr = NCONF_get_string(cnf, "default", "asn1");
2234212c	330	if (genstr == NULL) {
ecf3a1fb	331	BIO_printf(bio_err, "Can't find 'asn1' in '%s'\n", genconf);
0f113f3e MC	332	goto err;
	333	}
	334	}
9ea1b878	335
0f113f3e MC	336	atyp = ASN1_generate_nconf(genstr, cnf);
	337	NCONF_free(cnf);
	338	cnf = NULL;
9ea1b878	339
2234212c	340	if (atyp == NULL)
0f113f3e	341	return -1;
9ea1b878	342
0f113f3e	343	len = i2d_ASN1_TYPE(atyp, NULL);
9ea1b878	344
0f113f3e MC	345	if (len <= 0)
0f113f3e MC	346	goto err;
9ea1b878	347
0f113f3e MC	348	if (!BUF_MEM_grow(buf, len))
0f113f3e MC	349	goto err;
9ea1b878	350
0f113f3e	351	p = (unsigned char *)buf->data;
9ea1b878	352
0f113f3e	353	i2d_ASN1_TYPE(atyp, &p);
9ea1b878	354
0f113f3e MC	355	ASN1_TYPE_free(atyp);
0f113f3e MC	356	return len;
9ea1b878	357
0f113f3e MC	358	err:
	359	NCONF_free(cnf);
	360	ASN1_TYPE_free(atyp);
0f113f3e	361	return -1;
0f113f3e	362	}