/src/openssl111/crypto/asn1/asn1_par.c

Source (jump to first uncovered line)
/*
 * Copyright 1995-2021 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
 */

#include <stdio.h>
#include "internal/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_INTEGER *ai = NULL;
    ASN1_ENUMERATED *ae = NULL;
    /* ASN1_BMPSTRING *bmp=NULL; */
    int dump_indent, dump_cont = 0;

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

    dump_indent = 6;            /* Because we know BIO_dump_indent() */
    p = *pp;
    tot = p + length;
    while (length > 0) {
        op = p;
        j = ASN1_get_object(&p, &len, &tag, &xclass, length);
        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 = p;

            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)) {
                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_puts(bp, ":BAD OBJECT") <= 0)
                        goto end;
                    dump_cont = 1;
                }
            } else if (tag == V_ASN1_BOOLEAN) {
                if (len != 1) {
                    if (BIO_puts(bp, ":BAD BOOLEAN") <= 0)
                        goto end;
                    dump_cont = 1;
                }
                if (len > 0)
                    BIO_printf(bp, ":%u", p[0]);
            } 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;
                    }
                }
                ASN1_OCTET_STRING_free(os);
                os = NULL;
            } else if (tag == V_ASN1_INTEGER) {
                int i;

                opp = op;
                ai = d2i_ASN1_INTEGER(NULL, &opp, len + hl);
                if (ai != NULL) {
                    if (BIO_write(bp, ":", 1) <= 0)
                        goto end;
                    if (ai->type == V_ASN1_NEG_INTEGER)
                        if (BIO_write(bp, "-", 1) <= 0)
                            goto end;
                    for (i = 0; i < ai->length; i++) {
                        if (BIO_printf(bp, "%02X", ai->data[i]) <= 0)
                            goto end;
                    }
                    if (ai->length == 0) {
                        if (BIO_write(bp, "00", 2) <= 0)
                            goto end;
                    }
                } else {
                    if (BIO_puts(bp, ":BAD INTEGER") <= 0)
                        goto end;
                    dump_cont = 1;
                }
                ASN1_INTEGER_free(ai);
                ai = NULL;
            } else if (tag == V_ASN1_ENUMERATED) {
                int i;

                opp = op;
                ae = d2i_ASN1_ENUMERATED(NULL, &opp, len + hl);
                if (ae != NULL) {
                    if (BIO_write(bp, ":", 1) <= 0)
                        goto end;
                    if (ae->type == V_ASN1_NEG_ENUMERATED)
                        if (BIO_write(bp, "-", 1) <= 0)
                            goto end;
                    for (i = 0; i < ae->length; i++) {
                        if (BIO_printf(bp, "%02X", ae->data[i]) <= 0)
                            goto end;
                    }
                    if (ae->length == 0) {
                        if (BIO_write(bp, "00", 2) <= 0)
                            goto end;
                    }
                } else {
                    if (BIO_puts(bp, ":BAD ENUMERATED") <= 0)
                        goto end;
                    dump_cont = 1;
                }
                ASN1_ENUMERATED_free(ae);
                ae = NULL;
            } 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 (dump_cont) {
                int i;
                const unsigned char *tmp = op + hl;
                if (BIO_puts(bp, ":[") <= 0)
                    goto end;
                for (i = 0; i < len; i++) {
                    if (BIO_printf(bp, "%02X", tmp[i]) <= 0)
                        goto end;
                }
                if (BIO_puts(bp, "]") <= 0)
                    goto end;
                dump_cont = 0;
            }

            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:
    ASN1_OBJECT_free(o);
    ASN1_OCTET_STRING_free(os);
    ASN1_INTEGER_free(ai);
    ASN1_ENUMERATED_free(ae);
    *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: 2023-06-08 06:41

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
3		*
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
8		*/
9
10		#include <stdio.h>
11		#include "internal/cryptlib.h"
12		#include <openssl/buffer.h>
13		#include <openssl/objects.h>
14		#include <openssl/asn1.h>
15
16		#ifndef ASN1_PARSE_MAXDEPTH
17	0	#define ASN1_PARSE_MAXDEPTH 128
18		#endif
19
20		static int asn1_print_info(BIO *bp, int tag, int xclass, int constructed,
21		int indent);
22		static int asn1_parse2(BIO bp, const unsigned char *pp, long length,
23		int offset, int depth, int indent, int dump);
24		static int asn1_print_info(BIO *bp, int tag, int xclass, int constructed,
25		int indent)
26	0	{
27	0	static const char fmt[] = "%-18s";
28	0	char str[128];
29	0	const char *p;
30
31	0	if (constructed & V_ASN1_CONSTRUCTED)
32	0	p = "cons: ";
33	0	else
34	0	p = "prim: ";
35	0	if (BIO_write(bp, p, 6) < 6)
36	0	goto err;
37	0	BIO_indent(bp, indent, 128);
38
39	0	p = str;
40	0	if ((xclass & V_ASN1_PRIVATE) == V_ASN1_PRIVATE)
41	0	BIO_snprintf(str, sizeof(str), "priv [ %d ] ", tag);
42	0	else if ((xclass & V_ASN1_CONTEXT_SPECIFIC) == V_ASN1_CONTEXT_SPECIFIC)
43	0	BIO_snprintf(str, sizeof(str), "cont [ %d ]", tag);
44	0	else if ((xclass & V_ASN1_APPLICATION) == V_ASN1_APPLICATION)
45	0	BIO_snprintf(str, sizeof(str), "appl [ %d ]", tag);
46	0	else if (tag > 30)
47	0	BIO_snprintf(str, sizeof(str), "<ASN1 %d>", tag);
48	0	else
49	0	p = ASN1_tag2str(tag);
50
51	0	if (BIO_printf(bp, fmt, p) <= 0)
52	0	goto err;
53	0	return 1;
54	0	err:
55	0	return 0;
56	0	}
57
58		int ASN1_parse(BIO bp, const unsigned char pp, long len, int indent)
59	0	{
60	0	return asn1_parse2(bp, &pp, len, 0, 0, indent, 0);
61	0	}
62
63		int ASN1_parse_dump(BIO bp, const unsigned char pp, long len, int indent,
64		int dump)
65	0	{
66	0	return asn1_parse2(bp, &pp, len, 0, 0, indent, dump);
67	0	}
68
69		static int asn1_parse2(BIO bp, const unsigned char *pp, long length,
70		int offset, int depth, int indent, int dump)
71	0	{
72	0	const unsigned char p, ep, tot, op, *opp;
73	0	long len;
74	0	int tag, xclass, ret = 0;
75	0	int nl, hl, j, r;
76	0	ASN1_OBJECT *o = NULL;
77	0	ASN1_OCTET_STRING *os = NULL;
78	0	ASN1_INTEGER *ai = NULL;
79	0	ASN1_ENUMERATED *ae = NULL;
80		/* ASN1_BMPSTRING bmp=NULL; /
81	0	int dump_indent, dump_cont = 0;
82
83	0	if (depth > ASN1_PARSE_MAXDEPTH) {
84	0	BIO_puts(bp, "BAD RECURSION DEPTH\n");
85	0	return 0;
86	0	}
87
88	0	dump_indent = 6; /* Because we know BIO_dump_indent() */
89	0	p = *pp;
90	0	tot = p + length;
91	0	while (length > 0) {
92	0	op = p;
93	0	j = ASN1_get_object(&p, &len, &tag, &xclass, length);
94	0	if (j & 0x80) {
95	0	if (BIO_write(bp, "Error in encoding\n", 18) <= 0)
96	0	goto end;
97	0	ret = 0;
98	0	goto end;
99	0	}
100	0	hl = (p - op);
101	0	length -= hl;
102		/*
103		* if j == 0x21 it is a constructed indefinite length object
104		*/
105	0	if (BIO_printf(bp, "%5ld:", (long)offset + (long)(op - *pp))
106	0	<= 0)
107	0	goto end;
108
109	0	if (j != (V_ASN1_CONSTRUCTED \| 1)) {
110	0	if (BIO_printf(bp, "d=%-2d hl=%ld l=%4ld ",
111	0	depth, (long)hl, len) <= 0)
112	0	goto end;
113	0	} else {
114	0	if (BIO_printf(bp, "d=%-2d hl=%ld l=inf ", depth, (long)hl) <= 0)
115	0	goto end;
116	0	}
117	0	if (!asn1_print_info(bp, tag, xclass, j, (indent) ? depth : 0))
118	0	goto end;
119	0	if (j & V_ASN1_CONSTRUCTED) {
120	0	const unsigned char *sp = p;
121
122	0	ep = p + len;
123	0	if (BIO_write(bp, "\n", 1) <= 0)
124	0	goto end;
125	0	if (len > length) {
126	0	BIO_printf(bp, "length is greater than %ld\n", length);
127	0	ret = 0;
128	0	goto end;
129	0	}
130	0	if ((j == 0x21) && (len == 0)) {
131	0	for (;;) {
132	0	r = asn1_parse2(bp, &p, (long)(tot - p),
133	0	offset + (p - *pp), depth + 1,
134	0	indent, dump);
135	0	if (r == 0) {
136	0	ret = 0;
137	0	goto end;
138	0	}
139	0	if ((r == 2) \|\| (p >= tot)) {
140	0	len = p - sp;
141	0	break;
142	0	}
143	0	}
144	0	} else {
145	0	long tmp = len;
146
147	0	while (p < ep) {
148	0	sp = p;
149	0	r = asn1_parse2(bp, &p, tmp,
150	0	offset + (p - *pp), depth + 1,
151	0	indent, dump);
152	0	if (r == 0) {
153	0	ret = 0;
154	0	goto end;
155	0	}
156	0	tmp -= p - sp;
157	0	}
158	0	}
159	0	} else if (xclass != 0) {
160	0	p += len;
161	0	if (BIO_write(bp, "\n", 1) <= 0)
162	0	goto end;
163	0	} else {
164	0	nl = 0;
165	0	if ((tag == V_ASN1_PRINTABLESTRING) \|\|
166	0	(tag == V_ASN1_T61STRING) \|\|
167	0	(tag == V_ASN1_IA5STRING) \|\|
168	0	(tag == V_ASN1_VISIBLESTRING) \|\|
169	0	(tag == V_ASN1_NUMERICSTRING) \|\|
170	0	(tag == V_ASN1_UTF8STRING) \|\|
171	0	(tag == V_ASN1_UTCTIME) \|\| (tag == V_ASN1_GENERALIZEDTIME)) {
172	0	if (BIO_write(bp, ":", 1) <= 0)
173	0	goto end;
174	0	if ((len > 0) && BIO_write(bp, (const char *)p, (int)len)
175	0	!= (int)len)
176	0	goto end;
177	0	} else if (tag == V_ASN1_OBJECT) {
178	0	opp = op;
179	0	if (d2i_ASN1_OBJECT(&o, &opp, len + hl) != NULL) {
180	0	if (BIO_write(bp, ":", 1) <= 0)
181	0	goto end;
182	0	i2a_ASN1_OBJECT(bp, o);
183	0	} else {
184	0	if (BIO_puts(bp, ":BAD OBJECT") <= 0)
185	0	goto end;
186	0	dump_cont = 1;
187	0	}
188	0	} else if (tag == V_ASN1_BOOLEAN) {
189	0	if (len != 1) {
190	0	if (BIO_puts(bp, ":BAD BOOLEAN") <= 0)
191	0	goto end;
192	0	dump_cont = 1;
193	0	}
194	0	if (len > 0)
195	0	BIO_printf(bp, ":%u", p[0]);
196	0	} else if (tag == V_ASN1_BMPSTRING) {
197		/* do the BMP thang */
198	0	} else if (tag == V_ASN1_OCTET_STRING) {
199	0	int i, printable = 1;
200
201	0	opp = op;
202	0	os = d2i_ASN1_OCTET_STRING(NULL, &opp, len + hl);
203	0	if (os != NULL && os->length > 0) {
204	0	opp = os->data;
205		/*
206		* testing whether the octet string is printable
207		*/
208	0	for (i = 0; i < os->length; i++) {
209	0	if (((opp[i] < ' ') &&
210	0	(opp[i] != '\n') &&
211	0	(opp[i] != '\r') &&
212	0	(opp[i] != '\t')) \|\| (opp[i] > '~')) {
213	0	printable = 0;
214	0	break;
215	0	}
216	0	}
217	0	if (printable)
218		/* printable string */
219	0	{
220	0	if (BIO_write(bp, ":", 1) <= 0)
221	0	goto end;
222	0	if (BIO_write(bp, (const char *)opp, os->length) <= 0)
223	0	goto end;
224	0	} else if (!dump)
225		/*
226		* not printable => print octet string as hex dump
227		*/
228	0	{
229	0	if (BIO_write(bp, "[HEX DUMP]:", 11) <= 0)
230	0	goto end;
231	0	for (i = 0; i < os->length; i++) {
232	0	if (BIO_printf(bp, "%02X", opp[i]) <= 0)
233	0	goto end;
234	0	}
235	0	} else
236		/* print the normal dump */
237	0	{
238	0	if (!nl) {
239	0	if (BIO_write(bp, "\n", 1) <= 0)
240	0	goto end;
241	0	}
242	0	if (BIO_dump_indent(bp,
243	0	(const char *)opp,
244	0	((dump == -1 \|\| dump >
245	0	os->
246	0	length) ? os->length : dump),
247	0	dump_indent) <= 0)
248	0	goto end;
249	0	nl = 1;
250	0	}
251	0	}
252	0	ASN1_OCTET_STRING_free(os);
253	0	os = NULL;
254	0	} else if (tag == V_ASN1_INTEGER) {
255	0	int i;
256
257	0	opp = op;
258	0	ai = d2i_ASN1_INTEGER(NULL, &opp, len + hl);
259	0	if (ai != NULL) {
260	0	if (BIO_write(bp, ":", 1) <= 0)
261	0	goto end;
262	0	if (ai->type == V_ASN1_NEG_INTEGER)
263	0	if (BIO_write(bp, "-", 1) <= 0)
264	0	goto end;
265	0	for (i = 0; i < ai->length; i++) {
266	0	if (BIO_printf(bp, "%02X", ai->data[i]) <= 0)
267	0	goto end;
268	0	}
269	0	if (ai->length == 0) {
270	0	if (BIO_write(bp, "00", 2) <= 0)
271	0	goto end;
272	0	}
273	0	} else {
274	0	if (BIO_puts(bp, ":BAD INTEGER") <= 0)
275	0	goto end;
276	0	dump_cont = 1;
277	0	}
278	0	ASN1_INTEGER_free(ai);
279	0	ai = NULL;
280	0	} else if (tag == V_ASN1_ENUMERATED) {
281	0	int i;
282
283	0	opp = op;
284	0	ae = d2i_ASN1_ENUMERATED(NULL, &opp, len + hl);
285	0	if (ae != NULL) {
286	0	if (BIO_write(bp, ":", 1) <= 0)
287	0	goto end;
288	0	if (ae->type == V_ASN1_NEG_ENUMERATED)
289	0	if (BIO_write(bp, "-", 1) <= 0)
290	0	goto end;
291	0	for (i = 0; i < ae->length; i++) {
292	0	if (BIO_printf(bp, "%02X", ae->data[i]) <= 0)
293	0	goto end;
294	0	}
295	0	if (ae->length == 0) {
296	0	if (BIO_write(bp, "00", 2) <= 0)
297	0	goto end;
298	0	}
299	0	} else {
300	0	if (BIO_puts(bp, ":BAD ENUMERATED") <= 0)
301	0	goto end;
302	0	dump_cont = 1;
303	0	}
304	0	ASN1_ENUMERATED_free(ae);
305	0	ae = NULL;
306	0	} else if (len > 0 && dump) {
307	0	if (!nl) {
308	0	if (BIO_write(bp, "\n", 1) <= 0)
309	0	goto end;
310	0	}
311	0	if (BIO_dump_indent(bp, (const char *)p,
312	0	((dump == -1 \|\| dump > len) ? len : dump),
313	0	dump_indent) <= 0)
314	0	goto end;
315	0	nl = 1;
316	0	}
317	0	if (dump_cont) {
318	0	int i;
319	0	const unsigned char *tmp = op + hl;
320	0	if (BIO_puts(bp, ":[") <= 0)
321	0	goto end;
322	0	for (i = 0; i < len; i++) {
323	0	if (BIO_printf(bp, "%02X", tmp[i]) <= 0)
324	0	goto end;
325	0	}
326	0	if (BIO_puts(bp, "]") <= 0)
327	0	goto end;
328	0	dump_cont = 0;
329	0	}
330
331	0	if (!nl) {
332	0	if (BIO_write(bp, "\n", 1) <= 0)
333	0	goto end;
334	0	}
335	0	p += len;
336	0	if ((tag == V_ASN1_EOC) && (xclass == 0)) {
337	0	ret = 2; /* End of sequence */
338	0	goto end;
339	0	}
340	0	}
341	0	length -= len;
342	0	}
343	0	ret = 1;
344	0	end:
345	0	ASN1_OBJECT_free(o);
346	0	ASN1_OCTET_STRING_free(os);
347	0	ASN1_INTEGER_free(ai);
348	0	ASN1_ENUMERATED_free(ae);
349	0	*pp = p;
350	0	return ret;
351	0	}
352
353		const char *ASN1_tag2str(int tag)
354	0	{
355	0	static const char *const tag2str[] = {
356		/* 0-4 */
357	0	"EOC", "BOOLEAN", "INTEGER", "BIT STRING", "OCTET STRING",
358		/* 5-9 */
359	0	"NULL", "OBJECT", "OBJECT DESCRIPTOR", "EXTERNAL", "REAL",
360		/* 10-13 */
361	0	"ENUMERATED", "<ASN1 11>", "UTF8STRING", "<ASN1 13>",
362		/* 15-17 */
363	0	"<ASN1 14>", "<ASN1 15>", "SEQUENCE", "SET",
364		/* 18-20 */
365	0	"NUMERICSTRING", "PRINTABLESTRING", "T61STRING",
366		/* 21-24 */
367	0	"VIDEOTEXSTRING", "IA5STRING", "UTCTIME", "GENERALIZEDTIME",
368		/* 25-27 */
369	0	"GRAPHICSTRING", "VISIBLESTRING", "GENERALSTRING",
370		/* 28-30 */
371	0	"UNIVERSALSTRING", "<ASN1 29>", "BMPSTRING"
372	0	};
373
374	0	if ((tag == V_ASN1_NEG_INTEGER) \|\| (tag == V_ASN1_NEG_ENUMERATED))
375	0	tag &= ~0x100;
376
377	0	if (tag < 0 \|\| tag > 30)
378	0	return "(unknown)";
379	0	return tag2str[tag];
380	0	}