1 /* $OpenBSD: x509_obj.c,v 1.19 2021/11/01 20:53:08 tb Exp $ */
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 <string.h>
61
62 #include <openssl/buffer.h>
63 #include <openssl/err.h>
64 #include <openssl/lhash.h>
65 #include <openssl/objects.h>
66 #include <openssl/x509.h>
67
68 #include "x509_lcl.h"
69
70 char *
X509_NAME_oneline(const X509_NAME * a,char * buf,int len)71 X509_NAME_oneline(const X509_NAME *a, char *buf, int len)
72 {
73 X509_NAME_ENTRY *ne;
74 int i;
75 int n, lold, l, l1, l2, num, j, type;
76 const char *s;
77 char *p;
78 unsigned char *q;
79 BUF_MEM *b = NULL;
80 static const char hex[17] = "0123456789ABCDEF";
81 int gs_doit[4];
82 char tmp_buf[80];
83
84 if (buf == NULL) {
85 if ((b = BUF_MEM_new()) == NULL)
86 goto err;
87 if (!BUF_MEM_grow(b, 200))
88 goto err;
89 b->data[0] = '\0';
90 len = 200;
91 }
92 if (a == NULL) {
93 if (b) {
94 buf = b->data;
95 free(b);
96 }
97 strlcpy(buf, "NO X509_NAME", len);
98 return buf;
99 }
100
101 len--; /* space for '\0' */
102 l = 0;
103 for (i = 0; i < sk_X509_NAME_ENTRY_num(a->entries); i++) {
104 ne = sk_X509_NAME_ENTRY_value(a->entries, i);
105 n = OBJ_obj2nid(ne->object);
106 if ((n == NID_undef) || ((s = OBJ_nid2sn(n)) == NULL)) {
107 i2t_ASN1_OBJECT(tmp_buf, sizeof(tmp_buf), ne->object);
108 s = tmp_buf;
109 }
110 l1 = strlen(s);
111
112 type = ne->value->type;
113 num = ne->value->length;
114 q = ne->value->data;
115 if ((type == V_ASN1_GENERALSTRING) && ((num % 4) == 0)) {
116 gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 0;
117 for (j = 0; j < num; j++)
118 if (q[j] != 0)
119 gs_doit[j & 3] = 1;
120
121 if (gs_doit[0]|gs_doit[1]|gs_doit[2])
122 gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1;
123 else {
124 gs_doit[0] = gs_doit[1] = gs_doit[2] = 0;
125 gs_doit[3] = 1;
126 }
127 } else
128 gs_doit[0] = gs_doit[1] = gs_doit[2] = gs_doit[3] = 1;
129
130 for (l2 = j=0; j < num; j++) {
131 if (!gs_doit[j&3])
132 continue;
133 l2++;
134 if ((q[j] < ' ') || (q[j] > '~'))
135 l2 += 3;
136 }
137
138 lold = l;
139 l += 1 + l1 + 1 + l2;
140 if (b != NULL) {
141 if (!BUF_MEM_grow(b, l + 1))
142 goto err;
143 p = &(b->data[lold]);
144 } else if (l > len) {
145 break;
146 } else
147 p = &(buf[lold]);
148 *(p++) = '/';
149 memcpy(p, s, l1);
150 p += l1;
151 *(p++) = '=';
152 q = ne->value->data;
153 for (j = 0; j < num; j++) {
154 if (!gs_doit[j & 3])
155 continue;
156 n = q[j];
157 if ((n < ' ') || (n > '~')) {
158 *(p++) = '\\';
159 *(p++) = 'x';
160 *(p++) = hex[(n >> 4) & 0x0f];
161 *(p++) = hex[n & 0x0f];
162 } else
163 *(p++) = n;
164 }
165 *p = '\0';
166 }
167 if (b != NULL) {
168 p = b->data;
169 free(b);
170 } else
171 p = buf;
172 if (i == 0)
173 *p = '\0';
174 return (p);
175
176 err:
177 X509error(ERR_R_MALLOC_FAILURE);
178 if (b != NULL)
179 BUF_MEM_free(b);
180 return (NULL);
181 }
182