t_req.c revision 306195 
1/* crypto/asn1/t_req.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/bn.h>
63#include <openssl/objects.h>
64#include <openssl/x509.h>
65#include <openssl/x509v3.h>
66#ifndef OPENSSL_NO_RSA
67# include <openssl/rsa.h>
68#endif
69#ifndef OPENSSL_NO_DSA
70# include <openssl/dsa.h>
71#endif
72
73#ifndef OPENSSL_NO_FP_API
74int X509_REQ_print_fp(FILE *fp, X509_REQ *x)
75{
76    BIO *b;
77    int ret;
78
79    if ((b = BIO_new(BIO_s_file())) == NULL) {
80        X509err(X509_F_X509_REQ_PRINT_FP, ERR_R_BUF_LIB);
81        return (0);
82    }
83    BIO_set_fp(b, fp, BIO_NOCLOSE);
84    ret = X509_REQ_print(b, x);
85    BIO_free(b);
86    return (ret);
87}
88#endif
89
90int X509_REQ_print_ex(BIO *bp, X509_REQ *x, unsigned long nmflags,
91                      unsigned long cflag)
92{
93    unsigned long l;
94    int i;
95    const char *neg;
96    X509_REQ_INFO *ri;
97    EVP_PKEY *pkey;
98    STACK_OF(X509_ATTRIBUTE) *sk;
99    STACK_OF(X509_EXTENSION) *exts;
100    char mlch = ' ';
101    int nmindent = 0;
102
103    if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
104        mlch = '\n';
105        nmindent = 12;
106    }
107
108    if (nmflags == X509_FLAG_COMPAT)
109        nmindent = 16;
110
111    ri = x->req_info;
112    if (!(cflag & X509_FLAG_NO_HEADER)) {
113        if (BIO_write(bp, "Certificate Request:\n", 21) <= 0)
114            goto err;
115        if (BIO_write(bp, "    Data:\n", 10) <= 0)
116            goto err;
117    }
118    if (!(cflag & X509_FLAG_NO_VERSION)) {
119        neg = (ri->version->type == V_ASN1_NEG_INTEGER) ? "-" : "";
120        l = 0;
121        for (i = 0; i < ri->version->length; i++) {
122            l <<= 8;
123            l += ri->version->data[i];
124        }
125        if (BIO_printf(bp, "%8sVersion: %s%lu (%s0x%lx)\n", "", neg, l, neg,
126                       l) <= 0)
127            goto err;
128    }
129    if (!(cflag & X509_FLAG_NO_SUBJECT)) {
130        if (BIO_printf(bp, "        Subject:%c", mlch) <= 0)
131            goto err;
132        if (X509_NAME_print_ex(bp, ri->subject, nmindent, nmflags) < 0)
133            goto err;
134        if (BIO_write(bp, "\n", 1) <= 0)
135            goto err;
136    }
137    if (!(cflag & X509_FLAG_NO_PUBKEY)) {
138        if (BIO_write(bp, "        Subject Public Key Info:\n", 33) <= 0)
139            goto err;
140        if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
141            goto err;
142        if (i2a_ASN1_OBJECT(bp, ri->pubkey->algor->algorithm) <= 0)
143            goto err;
144        if (BIO_puts(bp, "\n") <= 0)
145            goto err;
146
147        pkey = X509_REQ_get_pubkey(x);
148        if (pkey == NULL) {
149            BIO_printf(bp, "%12sUnable to load Public Key\n", "");
150            ERR_print_errors(bp);
151        } else {
152            EVP_PKEY_print_public(bp, pkey, 16, NULL);
153            EVP_PKEY_free(pkey);
154        }
155    }
156
157    if (!(cflag & X509_FLAG_NO_ATTRIBUTES)) {
158        /* may not be */
159        if (BIO_printf(bp, "%8sAttributes:\n", "") <= 0)
160            goto err;
161
162        sk = x->req_info->attributes;
163        if (sk_X509_ATTRIBUTE_num(sk) == 0) {
164            if (BIO_printf(bp, "%12sa0:00\n", "") <= 0)
165                goto err;
166        } else {
167            for (i = 0; i < sk_X509_ATTRIBUTE_num(sk); i++) {
168                ASN1_TYPE *at;
169                X509_ATTRIBUTE *a;
170                ASN1_BIT_STRING *bs = NULL;
171                ASN1_TYPE *t;
172                int j, type = 0, count = 1, ii = 0;
173
174                a = sk_X509_ATTRIBUTE_value(sk, i);
175                if (X509_REQ_extension_nid(OBJ_obj2nid(a->object)))
176                    continue;
177                if (BIO_printf(bp, "%12s", "") <= 0)
178                    goto err;
179                if ((j = i2a_ASN1_OBJECT(bp, a->object)) > 0) {
180                    if (a->single) {
181                        t = a->value.single;
182                        type = t->type;
183                        bs = t->value.bit_string;
184                    } else {
185                        ii = 0;
186                        count = sk_ASN1_TYPE_num(a->value.set);
187 get_next:
188                        at = sk_ASN1_TYPE_value(a->value.set, ii);
189                        type = at->type;
190                        bs = at->value.asn1_string;
191                    }
192                }
193                for (j = 25 - j; j > 0; j--)
194                    if (BIO_write(bp, " ", 1) != 1)
195                        goto err;
196                if (BIO_puts(bp, ":") <= 0)
197                    goto err;
198                if ((type == V_ASN1_PRINTABLESTRING) ||
199                    (type == V_ASN1_UTF8STRING) ||
200                    (type == V_ASN1_T61STRING) ||
201                    (type == V_ASN1_IA5STRING)) {
202                    if (BIO_write(bp, (char *)bs->data, bs->length)
203                        != bs->length)
204                        goto err;
205                    BIO_puts(bp, "\n");
206                } else {
207                    BIO_puts(bp, "unable to print attribute\n");
208                }
209                if (++ii < count)
210                    goto get_next;
211            }
212        }
213    }
214    if (!(cflag & X509_FLAG_NO_EXTENSIONS)) {
215        exts = X509_REQ_get_extensions(x);
216        if (exts) {
217            BIO_printf(bp, "%8sRequested Extensions:\n", "");
218            for (i = 0; i < sk_X509_EXTENSION_num(exts); i++) {
219                ASN1_OBJECT *obj;
220                X509_EXTENSION *ex;
221                int j;
222                ex = sk_X509_EXTENSION_value(exts, i);
223                if (BIO_printf(bp, "%12s", "") <= 0)
224                    goto err;
225                obj = X509_EXTENSION_get_object(ex);
226                i2a_ASN1_OBJECT(bp, obj);
227                j = X509_EXTENSION_get_critical(ex);
228                if (BIO_printf(bp, ": %s\n", j ? "critical" : "") <= 0)
229                    goto err;
230                if (!X509V3_EXT_print(bp, ex, cflag, 16)) {
231                    BIO_printf(bp, "%16s", "");
232                    M_ASN1_OCTET_STRING_print(bp, ex->value);
233                }
234                if (BIO_write(bp, "\n", 1) <= 0)
235                    goto err;
236            }
237            sk_X509_EXTENSION_pop_free(exts, X509_EXTENSION_free);
238        }
239    }
240
241    if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
242        if (!X509_signature_print(bp, x->sig_alg, x->signature))
243            goto err;
244    }
245
246    return (1);
247 err:
248    X509err(X509_F_X509_REQ_PRINT_EX, ERR_R_BUF_LIB);
249    return (0);
250}
251
252int X509_REQ_print(BIO *bp, X509_REQ *x)
253{
254    return X509_REQ_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
255}
256