/src/openssl/crypto/asn1/asn1_par.c

Source (jump to first uncovered line)
/* crypto/asn1/asn1_par.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.]
 */

#include <stdio.h>
#include "cryptlib.h"
#include <openssl/buffer.h>
#include <openssl/objects.h>
#include <openssl/asn1.h>

#ifndef ASN1_PARSE_MAXDEPTH
#define ASN1_PARSE_MAXDEPTH 128
#endif

static int asn1_print_info(BIO *bp, int tag, int xclass, int constructed,
                           int indent);
static int asn1_parse2(BIO *bp, const unsigned char **pp, long length,
                       int offset, int depth, int indent, int dump);
static int asn1_print_info(BIO *bp, int tag, int xclass, int constructed,
                           int indent)
{
    static const char fmt[] = "%-18s";
    char str[128];
    const char *p;

    if (constructed & V_ASN1_CONSTRUCTED)
        p = "cons: ";
    else
        p = "prim: ";
    if (BIO_write(bp, p, 6) < 6)
        goto err;
    BIO_indent(bp, indent, 128);

    p = str;
    if ((xclass & V_ASN1_PRIVATE) == V_ASN1_PRIVATE)
        BIO_snprintf(str, sizeof str, "priv [ %d ] ", tag);
    else if ((xclass & V_ASN1_CONTEXT_SPECIFIC) == V_ASN1_CONTEXT_SPECIFIC)
        BIO_snprintf(str, sizeof str, "cont [ %d ]", tag);
    else if ((xclass & V_ASN1_APPLICATION) == V_ASN1_APPLICATION)
        BIO_snprintf(str, sizeof str, "appl [ %d ]", tag);
    else if (tag > 30)
        BIO_snprintf(str, sizeof str, "<ASN1 %d>", tag);
    else
        p = ASN1_tag2str(tag);

    if (BIO_printf(bp, fmt, p) <= 0)
        goto err;
    return (1);
 err:
    return (0);
}

int ASN1_parse(BIO *bp, const unsigned char *pp, long len, int indent)
{
    return (asn1_parse2(bp, &pp, len, 0, 0, indent, 0));
}

int ASN1_parse_dump(BIO *bp, const unsigned char *pp, long len, int indent,
                    int dump)
{
    return (asn1_parse2(bp, &pp, len, 0, 0, indent, dump));
}

static int asn1_parse2(BIO *bp, const unsigned char **pp, long length,
                       int offset, int depth, int indent, int dump)
{
    const unsigned char *p, *ep, *tot, *op, *opp;
    long len;
    int tag, xclass, ret = 0;
    int nl, hl, j, r;
    ASN1_OBJECT *o = NULL;
    ASN1_OCTET_STRING *os = NULL;
    /* ASN1_BMPSTRING *bmp=NULL; */
    int dump_indent;

#if 0
    dump_indent = indent;
#else
    dump_indent = 6;            /* Because we know BIO_dump_indent() */
#endif

    if (depth > ASN1_PARSE_MAXDEPTH) {
            BIO_puts(bp, "BAD RECURSION DEPTH\n");
            return 0;
    }

    p = *pp;
    tot = p + length;
    op = p - 1;
    while ((p < tot) && (op < p)) {
        op = p;
        j = ASN1_get_object(&p, &len, &tag, &xclass, length);
#ifdef LINT
        j = j;
#endif
        if (j & 0x80) {
            if (BIO_write(bp, "Error in encoding\n", 18) <= 0)
                goto end;
            ret = 0;
            goto end;
        }
        hl = (p - op);
        length -= hl;
        /*
         * if j == 0x21 it is a constructed indefinite length object
         */
        if (BIO_printf(bp, "%5ld:", (long)offset + (long)(op - *pp))
            <= 0)
            goto end;

        if (j != (V_ASN1_CONSTRUCTED | 1)) {
            if (BIO_printf(bp, "d=%-2d hl=%ld l=%4ld ",
                           depth, (long)hl, len) <= 0)
                goto end;
        } else {
            if (BIO_printf(bp, "d=%-2d hl=%ld l=inf  ", depth, (long)hl) <= 0)
                goto end;
        }
        if (!asn1_print_info(bp, tag, xclass, j, (indent) ? depth : 0))
            goto end;
        if (j & V_ASN1_CONSTRUCTED) {
            const unsigned char *sp;

            ep = p + len;
            if (BIO_write(bp, "\n", 1) <= 0)
                goto end;
            if (len > length) {
                BIO_printf(bp, "length is greater than %ld\n", length);
                ret = 0;
                goto end;
            }
            if ((j == 0x21) && (len == 0)) {
                sp = p;
                for (;;) {
                    r = asn1_parse2(bp, &p, (long)(tot - p),
                                    offset + (p - *pp), depth + 1,
                                    indent, dump);
                    if (r == 0) {
                        ret = 0;
                        goto end;
                    }
                    if ((r == 2) || (p >= tot)) {
                        len = p - sp;
                        break;
                    }
                }
            } else {
                long tmp = len;

                while (p < ep) {
                    sp = p;
                    r = asn1_parse2(bp, &p, tmp, offset + (p - *pp), depth + 1,
                                    indent, dump);
                    if (r == 0) {
                        ret = 0;
                        goto end;
                    }
                    tmp -= p - sp;
                }
            }
        } else if (xclass != 0) {
            p += len;
            if (BIO_write(bp, "\n", 1) <= 0)
                goto end;
        } else {
            nl = 0;
            if ((tag == V_ASN1_PRINTABLESTRING) ||
                (tag == V_ASN1_T61STRING) ||
                (tag == V_ASN1_IA5STRING) ||
                (tag == V_ASN1_VISIBLESTRING) ||
                (tag == V_ASN1_NUMERICSTRING) ||
                (tag == V_ASN1_UTF8STRING) ||
                (tag == V_ASN1_UTCTIME) || (tag == V_ASN1_GENERALIZEDTIME)) {
                if (BIO_write(bp, ":", 1) <= 0)
                    goto end;
                if ((len > 0) && BIO_write(bp, (const char *)p, (int)len)
                    != (int)len)
                    goto end;
            } else if (tag == V_ASN1_OBJECT) {
                opp = op;
                if (d2i_ASN1_OBJECT(&o, &opp, len + hl) != NULL) {
                    if (BIO_write(bp, ":", 1) <= 0)
                        goto end;
                    i2a_ASN1_OBJECT(bp, o);
                } else {
                    if (BIO_write(bp, ":BAD OBJECT", 11) <= 0)
                        goto end;
                }
            } else if (tag == V_ASN1_BOOLEAN) {
                int ii;

                opp = op;
                ii = d2i_ASN1_BOOLEAN(NULL, &opp, len + hl);
                if (ii < 0) {
                    if (BIO_write(bp, "Bad boolean\n", 12) <= 0)
                        goto end;
                }
                BIO_printf(bp, ":%d", ii);
            } else if (tag == V_ASN1_BMPSTRING) {
                /* do the BMP thang */
            } else if (tag == V_ASN1_OCTET_STRING) {
                int i, printable = 1;

                opp = op;
                os = d2i_ASN1_OCTET_STRING(NULL, &opp, len + hl);
                if (os != NULL && os->length > 0) {
                    opp = os->data;
                    /*
                     * testing whether the octet string is printable
                     */
                    for (i = 0; i < os->length; i++) {
                        if (((opp[i] < ' ') &&
                             (opp[i] != '\n') &&
                             (opp[i] != '\r') &&
                             (opp[i] != '\t')) || (opp[i] > '~')) {
                            printable = 0;
                            break;
                        }
                    }
                    if (printable)
                        /* printable string */
                    {
                        if (BIO_write(bp, ":", 1) <= 0)
                            goto end;
                        if (BIO_write(bp, (const char *)opp, os->length) <= 0)
                            goto end;
                    } else if (!dump)
                        /*
                         * not printable => print octet string as hex dump
                         */
                    {
                        if (BIO_write(bp, "[HEX DUMP]:", 11) <= 0)
                            goto end;
                        for (i = 0; i < os->length; i++) {
                            if (BIO_printf(bp, "%02X", opp[i]) <= 0)
                                goto end;
                        }
                    } else
                        /* print the normal dump */
                    {
                        if (!nl) {
                            if (BIO_write(bp, "\n", 1) <= 0)
                                goto end;
                        }
                        if (BIO_dump_indent(bp,
                                            (const char *)opp,
                                            ((dump == -1 || dump >
                                              os->
                                              length) ? os->length : dump),
                                            dump_indent) <= 0)
                            goto end;
                        nl = 1;
                    }
                }
                if (os != NULL) {
                    M_ASN1_OCTET_STRING_free(os);
                    os = NULL;
                }
            } else if (tag == V_ASN1_INTEGER) {
                ASN1_INTEGER *bs;
                int i;

                opp = op;
                bs = d2i_ASN1_INTEGER(NULL, &opp, len + hl);
                if (bs != NULL) {
                    if (BIO_write(bp, ":", 1) <= 0)
                        goto end;
                    if (bs->type == V_ASN1_NEG_INTEGER)
                        if (BIO_write(bp, "-", 1) <= 0)
                            goto end;
                    for (i = 0; i < bs->length; i++) {
                        if (BIO_printf(bp, "%02X", bs->data[i]) <= 0)
                            goto end;
                    }
                    if (bs->length == 0) {
                        if (BIO_write(bp, "00", 2) <= 0)
                            goto end;
                    }
                } else {
                    if (BIO_write(bp, "BAD INTEGER", 11) <= 0)
                        goto end;
                }
                M_ASN1_INTEGER_free(bs);
            } else if (tag == V_ASN1_ENUMERATED) {
                ASN1_ENUMERATED *bs;
                int i;

                opp = op;
                bs = d2i_ASN1_ENUMERATED(NULL, &opp, len + hl);
                if (bs != NULL) {
                    if (BIO_write(bp, ":", 1) <= 0)
                        goto end;
                    if (bs->type == V_ASN1_NEG_ENUMERATED)
                        if (BIO_write(bp, "-", 1) <= 0)
                            goto end;
                    for (i = 0; i < bs->length; i++) {
                        if (BIO_printf(bp, "%02X", bs->data[i]) <= 0)
                            goto end;
                    }
                    if (bs->length == 0) {
                        if (BIO_write(bp, "00", 2) <= 0)
                            goto end;
                    }
                } else {
                    if (BIO_write(bp, "BAD ENUMERATED", 14) <= 0)
                        goto end;
                }
                M_ASN1_ENUMERATED_free(bs);
            } else if (len > 0 && dump) {
                if (!nl) {
                    if (BIO_write(bp, "\n", 1) <= 0)
                        goto end;
                }
                if (BIO_dump_indent(bp, (const char *)p,
                                    ((dump == -1 || dump > len) ? len : dump),
                                    dump_indent) <= 0)
                    goto end;
                nl = 1;
            }

            if (!nl) {
                if (BIO_write(bp, "\n", 1) <= 0)
                    goto end;
            }
            p += len;
            if ((tag == V_ASN1_EOC) && (xclass == 0)) {
                ret = 2;        /* End of sequence */
                goto end;
            }
        }
        length -= len;
    }
    ret = 1;
 end:
    if (o != NULL)
        ASN1_OBJECT_free(o);
    if (os != NULL)
        M_ASN1_OCTET_STRING_free(os);
    *pp = p;
    return (ret);
}

const char *ASN1_tag2str(int tag)
{
    static const char *const tag2str[] = {
        /* 0-4 */
        "EOC", "BOOLEAN", "INTEGER", "BIT STRING", "OCTET STRING",
        /* 5-9 */
        "NULL", "OBJECT", "OBJECT DESCRIPTOR", "EXTERNAL", "REAL",
        /* 10-13 */
        "ENUMERATED", "<ASN1 11>", "UTF8STRING", "<ASN1 13>",
        /* 15-17 */
        "<ASN1 14>", "<ASN1 15>", "SEQUENCE", "SET",
        /* 18-20 */
        "NUMERICSTRING", "PRINTABLESTRING", "T61STRING",
        /* 21-24 */
        "VIDEOTEXSTRING", "IA5STRING", "UTCTIME", "GENERALIZEDTIME",
        /* 25-27 */
        "GRAPHICSTRING", "VISIBLESTRING", "GENERALSTRING",
        /* 28-30 */
        "UNIVERSALSTRING", "<ASN1 29>", "BMPSTRING"
    };

    if ((tag == V_ASN1_NEG_INTEGER) || (tag == V_ASN1_NEG_ENUMERATED))
        tag &= ~0x100;

    if (tag < 0 || tag > 30)
        return "(unknown)";
    return tag2str[tag];
}

Coverage Report

Created: 2022-11-30 06:20

Line	Count	Source (jump to first uncovered line)
1		/* crypto/asn1/asn1_par.c */
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		#include <stdio.h>
60		#include "cryptlib.h"
61		#include <openssl/buffer.h>
62		#include <openssl/objects.h>
63		#include <openssl/asn1.h>
64
65		#ifndef ASN1_PARSE_MAXDEPTH
66	0	#define ASN1_PARSE_MAXDEPTH 128
67		#endif
68
69		static int asn1_print_info(BIO *bp, int tag, int xclass, int constructed,
70		int indent);
71		static int asn1_parse2(BIO bp, const unsigned char *pp, long length,
72		int offset, int depth, int indent, int dump);
73		static int asn1_print_info(BIO *bp, int tag, int xclass, int constructed,
74		int indent)
75	0	{
76	0	static const char fmt[] = "%-18s";
77	0	char str[128];
78	0	const char *p;
79
80	0	if (constructed & V_ASN1_CONSTRUCTED)
81	0	p = "cons: ";
82	0	else
83	0	p = "prim: ";
84	0	if (BIO_write(bp, p, 6) < 6)
85	0	goto err;
86	0	BIO_indent(bp, indent, 128);
87
88	0	p = str;
89	0	if ((xclass & V_ASN1_PRIVATE) == V_ASN1_PRIVATE)
90	0	BIO_snprintf(str, sizeof str, "priv [ %d ] ", tag);
91	0	else if ((xclass & V_ASN1_CONTEXT_SPECIFIC) == V_ASN1_CONTEXT_SPECIFIC)
92	0	BIO_snprintf(str, sizeof str, "cont [ %d ]", tag);
93	0	else if ((xclass & V_ASN1_APPLICATION) == V_ASN1_APPLICATION)
94	0	BIO_snprintf(str, sizeof str, "appl [ %d ]", tag);
95	0	else if (tag > 30)
96	0	BIO_snprintf(str, sizeof str, "<ASN1 %d>", tag);
97	0	else
98	0	p = ASN1_tag2str(tag);
99
100	0	if (BIO_printf(bp, fmt, p) <= 0)
101	0	goto err;
102	0	return (1);
103	0	err:
104	0	return (0);
105	0	}
106
107		int ASN1_parse(BIO bp, const unsigned char pp, long len, int indent)
108	0	{
109	0	return (asn1_parse2(bp, &pp, len, 0, 0, indent, 0));
110	0	}
111
112		int ASN1_parse_dump(BIO bp, const unsigned char pp, long len, int indent,
113		int dump)
114	0	{
115	0	return (asn1_parse2(bp, &pp, len, 0, 0, indent, dump));
116	0	}
117
118		static int asn1_parse2(BIO bp, const unsigned char *pp, long length,
119		int offset, int depth, int indent, int dump)
120	0	{
121	0	const unsigned char p, ep, tot, op, *opp;
122	0	long len;
123	0	int tag, xclass, ret = 0;
124	0	int nl, hl, j, r;
125	0	ASN1_OBJECT *o = NULL;
126	0	ASN1_OCTET_STRING *os = NULL;
127		/* ASN1_BMPSTRING bmp=NULL; /
128	0	int dump_indent;
129
130		#if 0
131		dump_indent = indent;
132		#else
133	0	dump_indent = 6; /* Because we know BIO_dump_indent() */
134	0	#endif
135
136	0	if (depth > ASN1_PARSE_MAXDEPTH) {
137	0	BIO_puts(bp, "BAD RECURSION DEPTH\n");
138	0	return 0;
139	0	}
140
141	0	p = *pp;
142	0	tot = p + length;
143	0	op = p - 1;
144	0	while ((p < tot) && (op < p)) {
145	0	op = p;
146	0	j = ASN1_get_object(&p, &len, &tag, &xclass, length);
147		#ifdef LINT
148		j = j;
149		#endif
150	0	if (j & 0x80) {
151	0	if (BIO_write(bp, "Error in encoding\n", 18) <= 0)
152	0	goto end;
153	0	ret = 0;
154	0	goto end;
155	0	}
156	0	hl = (p - op);
157	0	length -= hl;
158		/*
159		* if j == 0x21 it is a constructed indefinite length object
160		*/
161	0	if (BIO_printf(bp, "%5ld:", (long)offset + (long)(op - *pp))
162	0	<= 0)
163	0	goto end;
164
165	0	if (j != (V_ASN1_CONSTRUCTED \| 1)) {
166	0	if (BIO_printf(bp, "d=%-2d hl=%ld l=%4ld ",
167	0	depth, (long)hl, len) <= 0)
168	0	goto end;
169	0	} else {
170	0	if (BIO_printf(bp, "d=%-2d hl=%ld l=inf ", depth, (long)hl) <= 0)
171	0	goto end;
172	0	}
173	0	if (!asn1_print_info(bp, tag, xclass, j, (indent) ? depth : 0))
174	0	goto end;
175	0	if (j & V_ASN1_CONSTRUCTED) {
176	0	const unsigned char *sp;
177
178	0	ep = p + len;
179	0	if (BIO_write(bp, "\n", 1) <= 0)
180	0	goto end;
181	0	if (len > length) {
182	0	BIO_printf(bp, "length is greater than %ld\n", length);
183	0	ret = 0;
184	0	goto end;
185	0	}
186	0	if ((j == 0x21) && (len == 0)) {
187	0	sp = p;
188	0	for (;;) {
189	0	r = asn1_parse2(bp, &p, (long)(tot - p),
190	0	offset + (p - *pp), depth + 1,
191	0	indent, dump);
192	0	if (r == 0) {
193	0	ret = 0;
194	0	goto end;
195	0	}
196	0	if ((r == 2) \|\| (p >= tot)) {
197	0	len = p - sp;
198	0	break;
199	0	}
200	0	}
201	0	} else {
202	0	long tmp = len;
203
204	0	while (p < ep) {
205	0	sp = p;
206	0	r = asn1_parse2(bp, &p, tmp, offset + (p - *pp), depth + 1,
207	0	indent, dump);
208	0	if (r == 0) {
209	0	ret = 0;
210	0	goto end;
211	0	}
212	0	tmp -= p - sp;
213	0	}
214	0	}
215	0	} else if (xclass != 0) {
216	0	p += len;
217	0	if (BIO_write(bp, "\n", 1) <= 0)
218	0	goto end;
219	0	} else {
220	0	nl = 0;
221	0	if ((tag == V_ASN1_PRINTABLESTRING) \|\|
222	0	(tag == V_ASN1_T61STRING) \|\|
223	0	(tag == V_ASN1_IA5STRING) \|\|
224	0	(tag == V_ASN1_VISIBLESTRING) \|\|
225	0	(tag == V_ASN1_NUMERICSTRING) \|\|
226	0	(tag == V_ASN1_UTF8STRING) \|\|
227	0	(tag == V_ASN1_UTCTIME) \|\| (tag == V_ASN1_GENERALIZEDTIME)) {
228	0	if (BIO_write(bp, ":", 1) <= 0)
229	0	goto end;
230	0	if ((len > 0) && BIO_write(bp, (const char *)p, (int)len)
231	0	!= (int)len)
232	0	goto end;
233	0	} else if (tag == V_ASN1_OBJECT) {
234	0	opp = op;
235	0	if (d2i_ASN1_OBJECT(&o, &opp, len + hl) != NULL) {
236	0	if (BIO_write(bp, ":", 1) <= 0)
237	0	goto end;
238	0	i2a_ASN1_OBJECT(bp, o);
239	0	} else {
240	0	if (BIO_write(bp, ":BAD OBJECT", 11) <= 0)
241	0	goto end;
242	0	}
243	0	} else if (tag == V_ASN1_BOOLEAN) {
244	0	int ii;
245
246	0	opp = op;
247	0	ii = d2i_ASN1_BOOLEAN(NULL, &opp, len + hl);
248	0	if (ii < 0) {
249	0	if (BIO_write(bp, "Bad boolean\n", 12) <= 0)
250	0	goto end;
251	0	}
252	0	BIO_printf(bp, ":%d", ii);
253	0	} else if (tag == V_ASN1_BMPSTRING) {
254		/* do the BMP thang */
255	0	} else if (tag == V_ASN1_OCTET_STRING) {
256	0	int i, printable = 1;
257
258	0	opp = op;
259	0	os = d2i_ASN1_OCTET_STRING(NULL, &opp, len + hl);
260	0	if (os != NULL && os->length > 0) {
261	0	opp = os->data;
262		/*
263		* testing whether the octet string is printable
264		*/
265	0	for (i = 0; i < os->length; i++) {
266	0	if (((opp[i] < ' ') &&
267	0	(opp[i] != '\n') &&
268	0	(opp[i] != '\r') &&
269	0	(opp[i] != '\t')) \|\| (opp[i] > '~')) {
270	0	printable = 0;
271	0	break;
272	0	}
273	0	}
274	0	if (printable)
275		/* printable string */
276	0	{
277	0	if (BIO_write(bp, ":", 1) <= 0)
278	0	goto end;
279	0	if (BIO_write(bp, (const char *)opp, os->length) <= 0)
280	0	goto end;
281	0	} else if (!dump)
282		/*
283		* not printable => print octet string as hex dump
284		*/
285	0	{
286	0	if (BIO_write(bp, "[HEX DUMP]:", 11) <= 0)
287	0	goto end;
288	0	for (i = 0; i < os->length; i++) {
289	0	if (BIO_printf(bp, "%02X", opp[i]) <= 0)
290	0	goto end;
291	0	}
292	0	} else
293		/* print the normal dump */
294	0	{
295	0	if (!nl) {
296	0	if (BIO_write(bp, "\n", 1) <= 0)
297	0	goto end;
298	0	}
299	0	if (BIO_dump_indent(bp,
300	0	(const char *)opp,
301	0	((dump == -1 \|\| dump >
302	0	os->
303	0	length) ? os->length : dump),
304	0	dump_indent) <= 0)
305	0	goto end;
306	0	nl = 1;
307	0	}
308	0	}
309	0	if (os != NULL) {
310	0	M_ASN1_OCTET_STRING_free(os);
311	0	os = NULL;
312	0	}
313	0	} else if (tag == V_ASN1_INTEGER) {
314	0	ASN1_INTEGER *bs;
315	0	int i;
316
317	0	opp = op;
318	0	bs = d2i_ASN1_INTEGER(NULL, &opp, len + hl);
319	0	if (bs != NULL) {
320	0	if (BIO_write(bp, ":", 1) <= 0)
321	0	goto end;
322	0	if (bs->type == V_ASN1_NEG_INTEGER)
323	0	if (BIO_write(bp, "-", 1) <= 0)
324	0	goto end;
325	0	for (i = 0; i < bs->length; i++) {
326	0	if (BIO_printf(bp, "%02X", bs->data[i]) <= 0)
327	0	goto end;
328	0	}
329	0	if (bs->length == 0) {
330	0	if (BIO_write(bp, "00", 2) <= 0)
331	0	goto end;
332	0	}
333	0	} else {
334	0	if (BIO_write(bp, "BAD INTEGER", 11) <= 0)
335	0	goto end;
336	0	}
337	0	M_ASN1_INTEGER_free(bs);
338	0	} else if (tag == V_ASN1_ENUMERATED) {
339	0	ASN1_ENUMERATED *bs;
340	0	int i;
341
342	0	opp = op;
343	0	bs = d2i_ASN1_ENUMERATED(NULL, &opp, len + hl);
344	0	if (bs != NULL) {
345	0	if (BIO_write(bp, ":", 1) <= 0)
346	0	goto end;
347	0	if (bs->type == V_ASN1_NEG_ENUMERATED)
348	0	if (BIO_write(bp, "-", 1) <= 0)
349	0	goto end;
350	0	for (i = 0; i < bs->length; i++) {
351	0	if (BIO_printf(bp, "%02X", bs->data[i]) <= 0)
352	0	goto end;
353	0	}
354	0	if (bs->length == 0) {
355	0	if (BIO_write(bp, "00", 2) <= 0)
356	0	goto end;
357	0	}
358	0	} else {
359	0	if (BIO_write(bp, "BAD ENUMERATED", 14) <= 0)
360	0	goto end;
361	0	}
362	0	M_ASN1_ENUMERATED_free(bs);
363	0	} else if (len > 0 && dump) {
364	0	if (!nl) {
365	0	if (BIO_write(bp, "\n", 1) <= 0)
366	0	goto end;
367	0	}
368	0	if (BIO_dump_indent(bp, (const char *)p,
369	0	((dump == -1 \|\| dump > len) ? len : dump),
370	0	dump_indent) <= 0)
371	0	goto end;
372	0	nl = 1;
373	0	}
374
375	0	if (!nl) {
376	0	if (BIO_write(bp, "\n", 1) <= 0)
377	0	goto end;
378	0	}
379	0	p += len;
380	0	if ((tag == V_ASN1_EOC) && (xclass == 0)) {
381	0	ret = 2; /* End of sequence */
382	0	goto end;
383	0	}
384	0	}
385	0	length -= len;
386	0	}
387	0	ret = 1;
388	0	end:
389	0	if (o != NULL)
390	0	ASN1_OBJECT_free(o);
391	0	if (os != NULL)
392	0	M_ASN1_OCTET_STRING_free(os);
393	0	*pp = p;
394	0	return (ret);
395	0	}
396
397		const char *ASN1_tag2str(int tag)
398	0	{
399	0	static const char *const tag2str[] = {
400		/* 0-4 */
401	0	"EOC", "BOOLEAN", "INTEGER", "BIT STRING", "OCTET STRING",
402		/* 5-9 */
403	0	"NULL", "OBJECT", "OBJECT DESCRIPTOR", "EXTERNAL", "REAL",
404		/* 10-13 */
405	0	"ENUMERATED", "<ASN1 11>", "UTF8STRING", "<ASN1 13>",
406		/* 15-17 */
407	0	"<ASN1 14>", "<ASN1 15>", "SEQUENCE", "SET",
408		/* 18-20 */
409	0	"NUMERICSTRING", "PRINTABLESTRING", "T61STRING",
410		/* 21-24 */
411	0	"VIDEOTEXSTRING", "IA5STRING", "UTCTIME", "GENERALIZEDTIME",
412		/* 25-27 */
413	0	"GRAPHICSTRING", "VISIBLESTRING", "GENERALSTRING",
414		/* 28-30 */
415	0	"UNIVERSALSTRING", "<ASN1 29>", "BMPSTRING"
416	0	};
417
418	0	if ((tag == V_ASN1_NEG_INTEGER) \|\| (tag == V_ASN1_NEG_ENUMERATED))
419	0	tag &= ~0x100;
420
421	0	if (tag < 0 \|\| tag > 30)
422	0	return "(unknown)";
423	0	return tag2str[tag];
424	0	}