tasn_prn.c revision 296465 
1/* tasn_prn.c */
2/*
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
4 * 2000.
5 */
6/* ====================================================================
7 * Copyright (c) 2000 The OpenSSL Project.  All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in
18 *    the documentation and/or other materials provided with the
19 *    distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 *    software must display the following acknowledgment:
23 *    "This product includes software developed by the OpenSSL Project
24 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 *    endorse or promote products derived from this software without
28 *    prior written permission. For written permission, please contact
29 *    licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 *    nor may "OpenSSL" appear in their names without prior written
33 *    permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 *    acknowledgment:
37 *    "This product includes software developed by the OpenSSL Project
38 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 *
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com).  This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
57 *
58 */
59
60#include <stddef.h>
61#include <openssl/asn1.h>
62#include <openssl/objects.h>
63#include <openssl/buffer.h>
64#include <openssl/err.h>
65#include <openssl/nasn.h>
66
67/*
68 * Print routines. Print out a whole structure from a template.
69 */
70
71static int asn1_item_print_nm(BIO *out, void *fld, int indent,
72                              const ASN1_ITEM *it, const char *name);
73
74int ASN1_item_print(BIO *out, void *fld, int indent, const ASN1_ITEM *it)
75{
76    return asn1_item_print_nm(out, fld, indent, it, it->sname);
77}
78
79static int asn1_item_print_nm(BIO *out, void *fld, int indent,
80                              const ASN1_ITEM *it, const char *name)
81{
82    ASN1_STRING *str;
83    const ASN1_TEMPLATE *tt;
84    void *tmpfld;
85    int i;
86    if (!fld) {
87        BIO_printf(out, "%*s%s ABSENT\n", indent, "", name);
88        return 1;
89    }
90    switch (it->itype) {
91
92    case ASN1_ITYPE_PRIMITIVE:
93        if (it->templates)
94            return ASN1_template_print(out, fld, indent, it->templates);
95        return asn1_primitive_print(out, fld, it->utype, indent, name);
96        break;
97
98    case ASN1_ITYPE_MSTRING:
99        str = fld;
100        return asn1_primitive_print(out, fld, str->type, indent, name);
101
102    case ASN1_ITYPE_EXTERN:
103        BIO_printf(out, "%*s%s:EXTERNAL TYPE %s %s\n", indent, "", name,
104                   it->sname, fld ? "" : "ABSENT");
105        return 1;
106    case ASN1_ITYPE_COMPAT:
107        BIO_printf(out, "%*s%s:COMPATIBLE TYPE %s %s\n", indent, "", name,
108                   it->sname, fld ? "" : "ABSENT");
109        return 1;
110
111    case ASN1_ITYPE_CHOICE:
112        /* CHOICE type, get selector */
113        i = asn1_get_choice_selector(fld, it);
114        /* This should never happen... */
115        if ((i < 0) || (i >= it->tcount)) {
116            BIO_printf(out, "%s selector [%d] out of range\n", it->sname, i);
117            return 1;
118        }
119        tt = it->templates + i;
120        tmpfld = asn1_get_field(fld, tt);
121        return ASN1_template_print(out, tmpfld, indent, tt);
122
123    case ASN1_ITYPE_SEQUENCE:
124        BIO_printf(out, "%*s%s {\n", indent, "", name);
125        /* Get each field entry */
126        for (i = 0, tt = it->templates; i < it->tcount; i++, tt++) {
127            tmpfld = asn1_get_field(fld, tt);
128            ASN1_template_print(out, tmpfld, indent + 2, tt);
129        }
130        BIO_printf(out, "%*s}\n", indent, "");
131        return 1;
132
133    default:
134        return 0;
135    }
136}
137
138int ASN1_template_print(BIO *out, void *fld, int indent,
139                        const ASN1_TEMPLATE *tt)
140{
141    int i, flags;
142#if 0
143    if (!fld)
144        return 0;
145#endif
146    flags = tt->flags;
147    if (flags & ASN1_TFLG_SK_MASK) {
148        char *tname;
149        void *skitem;
150        /* SET OF, SEQUENCE OF */
151        if (flags & ASN1_TFLG_SET_OF)
152            tname = "SET";
153        else
154            tname = "SEQUENCE";
155        if (fld) {
156            BIO_printf(out, "%*s%s OF %s {\n", indent, "", tname,
157                       tt->field_name);
158            for (i = 0; i < sk_num(fld); i++) {
159                skitem = sk_value(fld, i);
160                asn1_item_print_nm(out, skitem, indent + 2, tt->item, "");
161            }
162            BIO_printf(out, "%*s}\n", indent, "");
163        } else
164            BIO_printf(out, "%*s%s OF %s ABSENT\n", indent, "", tname,
165                       tt->field_name);
166        return 1;
167    }
168    return asn1_item_print_nm(out, fld, indent, tt->item, tt->field_name);
169}
170
171static int asn1_primitive_print(BIO *out, void *fld, long utype, int indent,
172                                const char *name)
173{
174    ASN1_STRING *str = fld;
175    if (fld) {
176        if (utype == V_ASN1_BOOLEAN) {
177            int *bool = fld;
178            if (*bool == -1)
179                printf("BOOL MISSING\n");
180            BIO_printf(out, "%*s%s:%s", indent, "", "BOOLEAN",
181                       *bool ? "TRUE" : "FALSE");
182        } else if ((utype == V_ASN1_INTEGER)
183                   || (utype == V_ASN1_ENUMERATED)) {
184            char *s, *nm;
185            s = i2s_ASN1_INTEGER(NULL, fld);
186            if (utype == V_ASN1_INTEGER)
187                nm = "INTEGER";
188            else
189                nm = "ENUMERATED";
190            BIO_printf(out, "%*s%s:%s", indent, "", nm, s);
191            OPENSSL_free(s);
192        } else if (utype == V_ASN1_NULL) {
193            BIO_printf(out, "%*s%s", indent, "", "NULL");
194        } else if (utype == V_ASN1_UTCTIME) {
195            BIO_printf(out, "%*s%s:%s:", indent, "", name, "UTCTIME");
196            ASN1_UTCTIME_print(out, str);
197        } else if (utype == V_ASN1_GENERALIZEDTIME) {
198            BIO_printf(out, "%*s%s:%s:", indent, "", name, "GENERALIZEDTIME");
199            ASN1_GENERALIZEDTIME_print(out, str);
200        } else if (utype == V_ASN1_OBJECT) {
201            char objbuf[80], *ln;
202            ln = OBJ_nid2ln(OBJ_obj2nid(fld));
203            if (!ln)
204                ln = "";
205            OBJ_obj2txt(objbuf, sizeof objbuf, fld, 1);
206            BIO_printf(out, "%*s%s:%s (%s)", indent, "", "OBJECT", ln,
207                       objbuf);
208        } else {
209            BIO_printf(out, "%*s%s:", indent, "", name);
210            ASN1_STRING_print_ex(out, str,
211                                 ASN1_STRFLGS_DUMP_UNKNOWN |
212                                 ASN1_STRFLGS_SHOW_TYPE);
213        }
214        BIO_printf(out, "\n");
215    } else
216        BIO_printf(out, "%*s%s [ABSENT]\n", indent, "", name);
217    return 1;
218}
219