1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
2 * All rights reserved.
3 *
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
7 *
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
14 *
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
21 *
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
24 * are met:
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
50 * SUCH DAMAGE.
51 *
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
56 */
57 /* ====================================================================
58 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
59 *
60 * Redistribution and use in source and binary forms, with or without
61 * modification, are permitted provided that the following conditions
62 * are met:
63 *
64 * 1. Redistributions of source code must retain the above copyright
65 * notice, this list of conditions and the following disclaimer.
66 *
67 * 2. Redistributions in binary form must reproduce the above copyright
68 * notice, this list of conditions and the following disclaimer in
69 * the documentation and/or other materials provided with the
70 * distribution.
71 *
72 * 3. All advertising materials mentioning features or use of this
73 * software must display the following acknowledgment:
74 * "This product includes software developed by the OpenSSL Project
75 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
76 *
77 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
78 * endorse or promote products derived from this software without
79 * prior written permission. For written permission, please contact
80 * openssl-core@openssl.org.
81 *
82 * 5. Products derived from this software may not be called "OpenSSL"
83 * nor may "OpenSSL" appear in their names without prior written
84 * permission of the OpenSSL Project.
85 *
86 * 6. Redistributions of any form whatsoever must retain the following
87 * acknowledgment:
88 * "This product includes software developed by the OpenSSL Project
89 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
90 *
91 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
92 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
93 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
94 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
95 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
96 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
97 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
98 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
99 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
100 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
101 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
102 * OF THE POSSIBILITY OF SUCH DAMAGE.
103 * ====================================================================
104 *
105 * This product includes cryptographic software written by Eric Young
106 * (eay@cryptsoft.com). This product includes software written by Tim
107 * Hudson (tjh@cryptsoft.com).
108 *
109 */
110
111 #include <openssl/ssl.h>
112
113 #if !defined(OPENSSL_WINDOWS) && !defined(OPENSSL_PNACL)
114
115 #include <dirent.h>
116 #include <errno.h>
117 #include <stdlib.h>
118 #include <string.h>
119
120 #include <openssl/err.h>
121 #include <openssl/mem.h>
122
123
124 typedef struct {
125 DIR *dir;
126 struct dirent dirent;
127 } OPENSSL_DIR_CTX;
128
OPENSSL_DIR_read(OPENSSL_DIR_CTX ** ctx,const char * directory)129 static const char *OPENSSL_DIR_read(OPENSSL_DIR_CTX **ctx,
130 const char *directory) {
131 struct dirent *dirent;
132
133 if (ctx == NULL || directory == NULL) {
134 errno = EINVAL;
135 return NULL;
136 }
137
138 errno = 0;
139 if (*ctx == NULL) {
140 *ctx = malloc(sizeof(OPENSSL_DIR_CTX));
141 if (*ctx == NULL) {
142 errno = ENOMEM;
143 return 0;
144 }
145 memset(*ctx, 0, sizeof(OPENSSL_DIR_CTX));
146
147 (*ctx)->dir = opendir(directory);
148 if ((*ctx)->dir == NULL) {
149 int save_errno = errno; /* Probably not needed, but I'm paranoid */
150 free(*ctx);
151 *ctx = NULL;
152 errno = save_errno;
153 return 0;
154 }
155 }
156
157 if (readdir_r((*ctx)->dir, &(*ctx)->dirent, &dirent) != 0 ||
158 dirent == NULL) {
159 return 0;
160 }
161
162 return (*ctx)->dirent.d_name;
163 }
164
OPENSSL_DIR_end(OPENSSL_DIR_CTX ** ctx)165 static int OPENSSL_DIR_end(OPENSSL_DIR_CTX **ctx) {
166 if (ctx != NULL && *ctx != NULL) {
167 int r = closedir((*ctx)->dir);
168 free(*ctx);
169 *ctx = NULL;
170 return r == 0;
171 }
172
173 errno = EINVAL;
174 return 0;
175 }
176
177
178 /* Add a directory of certs to a stack.
179 *
180 * \param stack the stack to append to.
181 * \param dir the directory to append from. All files in this directory will be
182 * examined as potential certs. Any that are acceptable to
183 * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will
184 * be included.
185 * \return 1 for success, 0 for failure. Note that in the case of failure some
186 * certs may have been added to \c stack. */
SSL_add_dir_cert_subjects_to_stack(STACK_OF (X509_NAME)* stack,const char * dir)187 int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
188 const char *dir) {
189 OPENSSL_DIR_CTX *d = NULL;
190 const char *filename;
191 int ret = 0;
192
193 /* Note that a side effect is that the CAs will be sorted by name */
194 while ((filename = OPENSSL_DIR_read(&d, dir))) {
195 char buf[1024];
196 int r;
197
198 if (strlen(dir) + strlen(filename) + 2 > sizeof(buf)) {
199 OPENSSL_PUT_ERROR(SSL, SSL_R_PATH_TOO_LONG);
200 goto err;
201 }
202
203 r = BIO_snprintf(buf, sizeof buf, "%s/%s", dir, filename);
204 if (r <= 0 || r >= (int)sizeof(buf) ||
205 !SSL_add_file_cert_subjects_to_stack(stack, buf)) {
206 goto err;
207 }
208 }
209
210 if (errno) {
211 OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB);
212 ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir, "')");
213 goto err;
214 }
215
216 ret = 1;
217
218 err:
219 if (d) {
220 OPENSSL_DIR_end(&d);
221 }
222 return ret;
223 }
224
225 #endif /* !WINDOWS && !PNACL */
226