x509_obj.c revision 296465 
1/* crypto/x509/x509_obj.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/lhash.h>
62#include <openssl/objects.h>
63#include <openssl/x509.h>
64#include <openssl/buffer.h>
65
66char *X509_NAME_oneline(X509_NAME *a, char *buf, int len)
67{
68    X509_NAME_ENTRY *ne;
69    int i;
70    int n, lold, l, l1, l2, num, j, type;
71    const char *s;
72    char *p;
73    unsigned char *q;
74    BUF_MEM *b = NULL;
75    static char hex[17] = "0123456789ABCDEF";
76    int gs_doit[4];
77    char tmp_buf[80];
78#ifdef CHARSET_EBCDIC
79    char ebcdic_buf[1024];
80#endif
81
82    if (buf == NULL) {
83        if ((b = BUF_MEM_new()) == NULL)
84            goto err;
85        if (!BUF_MEM_grow(b, 200))
86            goto err;
87        b->data[0] = '\0';
88        len = 200;
89    }
90    if (a == NULL) {
91        if (b) {
92            buf = b->data;
93            OPENSSL_free(b);
94        }
95        strncpy(buf, "NO X509_NAME", len);
96        buf[len - 1] = '\0';
97        return buf;
98    }
99
100    len--;                      /* space for '\0' */
101    l = 0;
102    for (i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) {
103        ne = sk_X509_NAME_ENTRY_value(a->entries, i);
104        n = OBJ_obj2nid(ne->object);
105        if ((n == NID_undef) || ((s = OBJ_nid2sn(n)) == NULL)) {
106            i2t_ASN1_OBJECT(tmp_buf, sizeof(tmp_buf), ne->object);
107            s = tmp_buf;
108        }
109        l1 = strlen(s);
110
111        type = ne->value->type;
112        num = ne->value->length;
113        q = ne->value->data;
114#ifdef CHARSET_EBCDIC
115        if (type == V_ASN1_GENERALSTRING ||
116            type == V_ASN1_VISIBLESTRING ||
117            type == V_ASN1_PRINTABLESTRING ||
118            type == V_ASN1_TELETEXSTRING ||
119            type == V_ASN1_VISIBLESTRING || type == V_ASN1_IA5STRING) {
120            ascii2ebcdic(ebcdic_buf, q, (num > sizeof ebcdic_buf)
121                         ? sizeof ebcdic_buf : num);
122            q = ebcdic_buf;
123        }
124#endif
125
126        if ((type == V_ASN1_GENERALSTRING) && ((num % 4) == 0)) {
127            gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 0;
128            for (j = 0; j < num; j++)
129                if (q[j] != 0)
130                    gs_doit[j & 3] = 1;
131
132            if (gs_doit[0] | gs_doit[1] | gs_doit[2])
133                gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1;
134            else {
135                gs_doit[0] = gs_doit[1] = gs_doit[2] = 0;
136                gs_doit[3] = 1;
137            }
138        } else
139            gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1;
140
141        for (l2 = j = 0; j < num; j++) {
142            if (!gs_doit[j & 3])
143                continue;
144            l2++;
145#ifndef CHARSET_EBCDIC
146            if ((q[j] < ' ') || (q[j] > '~'))
147                l2 += 3;
148#else
149            if ((os_toascii[q[j]] < os_toascii[' ']) ||
150                (os_toascii[q[j]] > os_toascii['~']))
151                l2 += 3;
152#endif
153        }
154
155        lold = l;
156        l += 1 + l1 + 1 + l2;
157        if (b != NULL) {
158            if (!BUF_MEM_grow(b, l + 1))
159                goto err;
160            p = &(b->data[lold]);
161        } else if (l > len) {
162            break;
163        } else
164            p = &(buf[lold]);
165        *(p++) = '/';
166        memcpy(p, s, (unsigned int)l1);
167        p += l1;
168        *(p++) = '=';
169
170#ifndef CHARSET_EBCDIC          /* q was assigned above already. */
171        q = ne->value->data;
172#endif
173
174        for (j = 0; j < num; j++) {
175            if (!gs_doit[j & 3])
176                continue;
177#ifndef CHARSET_EBCDIC
178            n = q[j];
179            if ((n < ' ') || (n > '~')) {
180                *(p++) = '\\';
181                *(p++) = 'x';
182                *(p++) = hex[(n >> 4) & 0x0f];
183                *(p++) = hex[n & 0x0f];
184            } else
185                *(p++) = n;
186#else
187            n = os_toascii[q[j]];
188            if ((n < os_toascii[' ']) || (n > os_toascii['~'])) {
189                *(p++) = '\\';
190                *(p++) = 'x';
191                *(p++) = hex[(n >> 4) & 0x0f];
192                *(p++) = hex[n & 0x0f];
193            } else
194                *(p++) = q[j];
195#endif
196        }
197        *p = '\0';
198    }
199    if (b != NULL) {
200        p = b->data;
201        OPENSSL_free(b);
202    } else
203        p = buf;
204    if (i == 0)
205        *p = '\0';
206    return (p);
207 err:
208    X509err(X509_F_X509_NAME_ONELINE, ERR_R_MALLOC_FAILURE);
209    if (b != NULL)
210        BUF_MEM_free(b);
211    return (NULL);
212}
213