2 * ! \file ssl/ssl_cert.c
4 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
7 * This package is an SSL implementation written
8 * by Eric Young (eay@cryptsoft.com).
9 * The implementation was written so as to conform with Netscapes SSL.
11 * This library is free for commercial and non-commercial use as long as
12 * the following conditions are aheared to. The following conditions
13 * apply to all code found in this distribution, be it the RC4, RSA,
14 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
15 * included with this distribution is covered by the same copyright terms
16 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
18 * Copyright remains Eric Young's, and as such any Copyright notices in
19 * the code are not to be removed.
20 * If this package is used in a product, Eric Young should be given attribution
21 * as the author of the parts of the library used.
22 * This can be in the form of a textual message at program startup or
23 * in documentation (online or textual) provided with the package.
25 * Redistribution and use in source and binary forms, with or without
26 * modification, are permitted provided that the following conditions
28 * 1. Redistributions of source code must retain the copyright
29 * notice, this list of conditions and the following disclaimer.
30 * 2. Redistributions in binary form must reproduce the above copyright
31 * notice, this list of conditions and the following disclaimer in the
32 * documentation and/or other materials provided with the distribution.
33 * 3. All advertising materials mentioning features or use of this software
34 * must display the following acknowledgement:
35 * "This product includes cryptographic software written by
36 * Eric Young (eay@cryptsoft.com)"
37 * The word 'cryptographic' can be left out if the rouines from the library
38 * being used are not cryptographic related :-).
39 * 4. If you include any Windows specific code (or a derivative thereof) from
40 * the apps directory (application code) you must include an acknowledgement:
41 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
43 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
44 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
45 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
46 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
47 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
48 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
49 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
50 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
51 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
52 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
55 * The licence and distribution terms for any publically available version or
56 * derivative of this code cannot be changed. i.e. this code cannot simply be
57 * copied and put under another distribution licence
58 * [including the GNU Public Licence.]
60 /* ====================================================================
61 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
63 * Redistribution and use in source and binary forms, with or without
64 * modification, are permitted provided that the following conditions
67 * 1. Redistributions of source code must retain the above copyright
68 * notice, this list of conditions and the following disclaimer.
70 * 2. Redistributions in binary form must reproduce the above copyright
71 * notice, this list of conditions and the following disclaimer in
72 * the documentation and/or other materials provided with the
75 * 3. All advertising materials mentioning features or use of this
76 * software must display the following acknowledgment:
77 * "This product includes software developed by the OpenSSL Project
78 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
80 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
81 * endorse or promote products derived from this software without
82 * prior written permission. For written permission, please contact
83 * openssl-core@openssl.org.
85 * 5. Products derived from this software may not be called "OpenSSL"
86 * nor may "OpenSSL" appear in their names without prior written
87 * permission of the OpenSSL Project.
89 * 6. Redistributions of any form whatsoever must retain the following
91 * "This product includes software developed by the OpenSSL Project
92 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
94 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
95 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
97 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
98 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
99 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
100 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
101 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
103 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
104 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
105 * OF THE POSSIBILITY OF SUCH DAMAGE.
106 * ====================================================================
108 * This product includes cryptographic software written by Eric Young
109 * (eay@cryptsoft.com). This product includes software written by Tim
110 * Hudson (tjh@cryptsoft.com).
113 /* ====================================================================
114 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
115 * ECC cipher suite support in OpenSSL originally developed by
116 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
122 #ifndef NO_SYS_TYPES_H
123 # include <sys/types.h>
127 #include <openssl/objects.h>
128 #include <openssl/bio.h>
129 #include <openssl/pem.h>
130 #include <openssl/x509v3.h>
131 #ifndef OPENSSL_NO_DH
132 # include <openssl/dh.h>
134 #include <openssl/bn.h>
135 #include "ssl_locl.h"
137 int SSL_get_ex_data_X509_STORE_CTX_idx(void)
139 static volatile int ssl_x509_store_ctx_idx
= -1;
140 int got_write_lock
= 0;
142 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX
);
144 if (ssl_x509_store_ctx_idx
< 0) {
145 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX
);
146 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX
);
149 if (ssl_x509_store_ctx_idx
< 0) {
150 ssl_x509_store_ctx_idx
=
151 X509_STORE_CTX_get_ex_new_index(0, "SSL for verify callback",
157 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX
);
159 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX
);
161 return ssl_x509_store_ctx_idx
;
164 static void ssl_cert_set_default_md(CERT
*cert
)
166 /* Set digest values to defaults */
167 #ifndef OPENSSL_NO_DSA
168 cert
->pkeys
[SSL_PKEY_DSA_SIGN
].digest
= EVP_sha1();
170 #ifndef OPENSSL_NO_RSA
171 cert
->pkeys
[SSL_PKEY_RSA_SIGN
].digest
= EVP_sha1();
172 cert
->pkeys
[SSL_PKEY_RSA_ENC
].digest
= EVP_sha1();
174 #ifndef OPENSSL_NO_ECDSA
175 cert
->pkeys
[SSL_PKEY_ECC
].digest
= EVP_sha1();
179 CERT
*ssl_cert_new(void)
183 ret
= (CERT
*)OPENSSL_malloc(sizeof(CERT
));
185 SSLerr(SSL_F_SSL_CERT_NEW
, ERR_R_MALLOC_FAILURE
);
188 memset(ret
, 0, sizeof(CERT
));
190 ret
->key
= &(ret
->pkeys
[SSL_PKEY_RSA_ENC
]);
192 ssl_cert_set_default_md(ret
);
196 CERT
*ssl_cert_dup(CERT
*cert
)
201 ret
= (CERT
*)OPENSSL_malloc(sizeof(CERT
));
203 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_MALLOC_FAILURE
);
207 memset(ret
, 0, sizeof(CERT
));
209 ret
->key
= &ret
->pkeys
[cert
->key
- &cert
->pkeys
[0]];
211 * or ret->key = ret->pkeys + (cert->key - cert->pkeys), if you find that
215 ret
->valid
= cert
->valid
;
216 ret
->mask_k
= cert
->mask_k
;
217 ret
->mask_a
= cert
->mask_a
;
218 ret
->export_mask_k
= cert
->export_mask_k
;
219 ret
->export_mask_a
= cert
->export_mask_a
;
221 #ifndef OPENSSL_NO_RSA
222 if (cert
->rsa_tmp
!= NULL
) {
223 RSA_up_ref(cert
->rsa_tmp
);
224 ret
->rsa_tmp
= cert
->rsa_tmp
;
226 ret
->rsa_tmp_cb
= cert
->rsa_tmp_cb
;
229 #ifndef OPENSSL_NO_DH
230 if (cert
->dh_tmp
!= NULL
) {
231 ret
->dh_tmp
= DHparams_dup(cert
->dh_tmp
);
232 if (ret
->dh_tmp
== NULL
) {
233 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_DH_LIB
);
236 if (cert
->dh_tmp
->priv_key
) {
237 BIGNUM
*b
= BN_dup(cert
->dh_tmp
->priv_key
);
239 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_BN_LIB
);
242 ret
->dh_tmp
->priv_key
= b
;
244 if (cert
->dh_tmp
->pub_key
) {
245 BIGNUM
*b
= BN_dup(cert
->dh_tmp
->pub_key
);
247 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_BN_LIB
);
250 ret
->dh_tmp
->pub_key
= b
;
253 ret
->dh_tmp_cb
= cert
->dh_tmp_cb
;
256 #ifndef OPENSSL_NO_ECDH
257 if (cert
->ecdh_tmp
) {
258 ret
->ecdh_tmp
= EC_KEY_dup(cert
->ecdh_tmp
);
259 if (ret
->ecdh_tmp
== NULL
) {
260 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_EC_LIB
);
264 ret
->ecdh_tmp_cb
= cert
->ecdh_tmp_cb
;
267 for (i
= 0; i
< SSL_PKEY_NUM
; i
++) {
268 if (cert
->pkeys
[i
].x509
!= NULL
) {
269 ret
->pkeys
[i
].x509
= cert
->pkeys
[i
].x509
;
270 CRYPTO_add(&ret
->pkeys
[i
].x509
->references
, 1, CRYPTO_LOCK_X509
);
273 if (cert
->pkeys
[i
].privatekey
!= NULL
) {
274 ret
->pkeys
[i
].privatekey
= cert
->pkeys
[i
].privatekey
;
275 CRYPTO_add(&ret
->pkeys
[i
].privatekey
->references
, 1,
276 CRYPTO_LOCK_EVP_PKEY
);
281 * ret->extra_certs *should* exist, but currently the own certificate
282 * chain is held inside SSL_CTX
287 * Set digests to defaults. NB: we don't copy existing values as they
288 * will be set during handshake.
290 ssl_cert_set_default_md(ret
);
294 #if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_ECDH)
297 #ifndef OPENSSL_NO_RSA
298 if (ret
->rsa_tmp
!= NULL
)
299 RSA_free(ret
->rsa_tmp
);
301 #ifndef OPENSSL_NO_DH
302 if (ret
->dh_tmp
!= NULL
)
303 DH_free(ret
->dh_tmp
);
305 #ifndef OPENSSL_NO_ECDH
306 if (ret
->ecdh_tmp
!= NULL
)
307 EC_KEY_free(ret
->ecdh_tmp
);
310 for (i
= 0; i
< SSL_PKEY_NUM
; i
++) {
311 if (ret
->pkeys
[i
].x509
!= NULL
)
312 X509_free(ret
->pkeys
[i
].x509
);
313 if (ret
->pkeys
[i
].privatekey
!= NULL
)
314 EVP_PKEY_free(ret
->pkeys
[i
].privatekey
);
320 void ssl_cert_free(CERT
*c
)
327 i
= CRYPTO_add(&c
->references
, -1, CRYPTO_LOCK_SSL_CERT
);
329 REF_PRINT("CERT", c
);
335 fprintf(stderr
, "ssl_cert_free, bad reference count\n");
340 #ifndef OPENSSL_NO_RSA
342 RSA_free(c
->rsa_tmp
);
344 #ifndef OPENSSL_NO_DH
348 #ifndef OPENSSL_NO_ECDH
350 EC_KEY_free(c
->ecdh_tmp
);
353 for (i
= 0; i
< SSL_PKEY_NUM
; i
++) {
354 if (c
->pkeys
[i
].x509
!= NULL
)
355 X509_free(c
->pkeys
[i
].x509
);
356 if (c
->pkeys
[i
].privatekey
!= NULL
)
357 EVP_PKEY_free(c
->pkeys
[i
].privatekey
);
359 if (c
->pkeys
[i
].publickey
!= NULL
)
360 EVP_PKEY_free(c
->pkeys
[i
].publickey
);
366 int ssl_cert_inst(CERT
**o
)
369 * Create a CERT if there isn't already one (which cannot really happen,
370 * as it is initially created in SSL_CTX_new; but the earlier code
371 * usually allows for that one being non-existant, so we follow that
372 * behaviour, as it might turn out that there actually is a reason for it
373 * -- but I'm not sure that *all* of the existing code could cope with
374 * s->cert being NULL, otherwise we could do without the initialization
379 SSLerr(SSL_F_SSL_CERT_INST
, ERR_R_PASSED_NULL_PARAMETER
);
383 if ((*o
= ssl_cert_new()) == NULL
) {
384 SSLerr(SSL_F_SSL_CERT_INST
, ERR_R_MALLOC_FAILURE
);
391 SESS_CERT
*ssl_sess_cert_new(void)
395 ret
= OPENSSL_malloc(sizeof *ret
);
397 SSLerr(SSL_F_SSL_SESS_CERT_NEW
, ERR_R_MALLOC_FAILURE
);
401 memset(ret
, 0, sizeof *ret
);
402 ret
->peer_key
= &(ret
->peer_pkeys
[SSL_PKEY_RSA_ENC
]);
408 void ssl_sess_cert_free(SESS_CERT
*sc
)
415 i
= CRYPTO_add(&sc
->references
, -1, CRYPTO_LOCK_SSL_SESS_CERT
);
417 REF_PRINT("SESS_CERT", sc
);
423 fprintf(stderr
, "ssl_sess_cert_free, bad reference count\n");
429 if (sc
->cert_chain
!= NULL
)
430 sk_X509_pop_free(sc
->cert_chain
, X509_free
);
431 for (i
= 0; i
< SSL_PKEY_NUM
; i
++) {
432 if (sc
->peer_pkeys
[i
].x509
!= NULL
)
433 X509_free(sc
->peer_pkeys
[i
].x509
);
434 #if 0 /* We don't have the peer's private key.
435 * These lines are just * here as a reminder
436 * that we're still using a
437 * not-quite-appropriate * data structure. */
438 if (sc
->peer_pkeys
[i
].privatekey
!= NULL
)
439 EVP_PKEY_free(sc
->peer_pkeys
[i
].privatekey
);
443 #ifndef OPENSSL_NO_RSA
444 if (sc
->peer_rsa_tmp
!= NULL
)
445 RSA_free(sc
->peer_rsa_tmp
);
447 #ifndef OPENSSL_NO_DH
448 if (sc
->peer_dh_tmp
!= NULL
)
449 DH_free(sc
->peer_dh_tmp
);
451 #ifndef OPENSSL_NO_ECDH
452 if (sc
->peer_ecdh_tmp
!= NULL
)
453 EC_KEY_free(sc
->peer_ecdh_tmp
);
459 int ssl_set_peer_cert_type(SESS_CERT
*sc
, int type
)
461 sc
->peer_cert_type
= type
;
465 int ssl_verify_cert_chain(SSL
*s
, STACK_OF(X509
) *sk
)
471 if ((sk
== NULL
) || (sk_X509_num(sk
) == 0))
474 x
= sk_X509_value(sk
, 0);
475 if (!X509_STORE_CTX_init(&ctx
, s
->ctx
->cert_store
, x
, sk
)) {
476 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN
, ERR_R_X509_LIB
);
480 if (SSL_get_verify_depth(s
) >= 0)
481 X509_STORE_CTX_set_depth(&ctx
, SSL_get_verify_depth(s
));
483 X509_STORE_CTX_set_ex_data(&ctx
, SSL_get_ex_data_X509_STORE_CTX_idx(), s
);
486 * We need to inherit the verify parameters. These can be determined by
487 * the context: if its a server it will verify SSL client certificates or
491 X509_STORE_CTX_set_default(&ctx
, s
->server
? "ssl_client" : "ssl_server");
493 * Anything non-default in "param" should overwrite anything in the ctx.
495 X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(&ctx
), s
->param
);
497 if (s
->verify_callback
)
498 X509_STORE_CTX_set_verify_cb(&ctx
, s
->verify_callback
);
500 if (s
->ctx
->app_verify_callback
!= NULL
)
501 #if 1 /* new with OpenSSL 0.9.7 */
502 i
= s
->ctx
->app_verify_callback(&ctx
, s
->ctx
->app_verify_arg
);
504 i
= s
->ctx
->app_verify_callback(&ctx
); /* should pass app_verify_arg */
507 #ifndef OPENSSL_NO_X509_VERIFY
508 i
= X509_verify_cert(&ctx
);
511 ctx
.error
= X509_V_ERR_APPLICATION_VERIFICATION
;
512 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN
, SSL_R_NO_VERIFY_CALLBACK
);
516 s
->verify_result
= ctx
.error
;
517 X509_STORE_CTX_cleanup(&ctx
);
522 static void set_client_CA_list(STACK_OF(X509_NAME
) **ca_list
,
523 STACK_OF(X509_NAME
) *name_list
)
525 if (*ca_list
!= NULL
)
526 sk_X509_NAME_pop_free(*ca_list
, X509_NAME_free
);
528 *ca_list
= name_list
;
531 STACK_OF(X509_NAME
) *SSL_dup_CA_list(STACK_OF(X509_NAME
) *sk
)
534 STACK_OF(X509_NAME
) *ret
;
537 ret
= sk_X509_NAME_new_null();
538 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
539 name
= X509_NAME_dup(sk_X509_NAME_value(sk
, i
));
540 if ((name
== NULL
) || !sk_X509_NAME_push(ret
, name
)) {
541 sk_X509_NAME_pop_free(ret
, X509_NAME_free
);
548 void SSL_set_client_CA_list(SSL
*s
, STACK_OF(X509_NAME
) *name_list
)
550 set_client_CA_list(&(s
->client_CA
), name_list
);
553 void SSL_CTX_set_client_CA_list(SSL_CTX
*ctx
, STACK_OF(X509_NAME
) *name_list
)
555 set_client_CA_list(&(ctx
->client_CA
), name_list
);
558 STACK_OF(X509_NAME
) *SSL_CTX_get_client_CA_list(const SSL_CTX
*ctx
)
560 return (ctx
->client_CA
);
563 STACK_OF(X509_NAME
) *SSL_get_client_CA_list(const SSL
*s
)
565 if (s
->type
== SSL_ST_CONNECT
) { /* we are in the client */
566 if (((s
->version
>> 8) == SSL3_VERSION_MAJOR
) && (s
->s3
!= NULL
))
567 return (s
->s3
->tmp
.ca_names
);
571 if (s
->client_CA
!= NULL
)
572 return (s
->client_CA
);
574 return (s
->ctx
->client_CA
);
578 static int add_client_CA(STACK_OF(X509_NAME
) **sk
, X509
*x
)
584 if ((*sk
== NULL
) && ((*sk
= sk_X509_NAME_new_null()) == NULL
))
587 if ((name
= X509_NAME_dup(X509_get_subject_name(x
))) == NULL
)
590 if (!sk_X509_NAME_push(*sk
, name
)) {
591 X509_NAME_free(name
);
597 int SSL_add_client_CA(SSL
*ssl
, X509
*x
)
599 return (add_client_CA(&(ssl
->client_CA
), x
));
602 int SSL_CTX_add_client_CA(SSL_CTX
*ctx
, X509
*x
)
604 return (add_client_CA(&(ctx
->client_CA
), x
));
607 static int xname_cmp(const X509_NAME
*const *a
, const X509_NAME
*const *b
)
609 return (X509_NAME_cmp(*a
, *b
));
612 #ifndef OPENSSL_NO_STDIO
614 * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed;
615 * it doesn't really have anything to do with clients (except that a common use
616 * for a stack of CAs is to send it to the client). Actually, it doesn't have
617 * much to do with CAs, either, since it will load any old cert.
618 * \param file the file containing one or more certs.
619 * \return a ::STACK containing the certs.
621 STACK_OF(X509_NAME
) *SSL_load_client_CA_file(const char *file
)
625 X509_NAME
*xn
= NULL
;
626 STACK_OF(X509_NAME
) *ret
= NULL
, *sk
;
628 sk
= sk_X509_NAME_new(xname_cmp
);
630 in
= BIO_new(BIO_s_file_internal());
632 if ((sk
== NULL
) || (in
== NULL
)) {
633 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE
, ERR_R_MALLOC_FAILURE
);
637 if (!BIO_read_filename(in
, file
))
641 if (PEM_read_bio_X509(in
, &x
, NULL
, NULL
) == NULL
)
644 ret
= sk_X509_NAME_new_null();
646 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE
, ERR_R_MALLOC_FAILURE
);
650 if ((xn
= X509_get_subject_name(x
)) == NULL
)
652 /* check for duplicates */
653 xn
= X509_NAME_dup(xn
);
656 if (sk_X509_NAME_find(sk
, xn
) >= 0)
659 sk_X509_NAME_push(sk
, xn
);
660 sk_X509_NAME_push(ret
, xn
);
667 sk_X509_NAME_pop_free(ret
, X509_NAME_free
);
671 sk_X509_NAME_free(sk
);
683 * Add a file of certs to a stack.
684 * \param stack the stack to add to.
685 * \param file the file to add from. All certs in this file that are not
686 * already in the stack will be added.
687 * \return 1 for success, 0 for failure. Note that in the case of failure some
688 * certs may have been added to \c stack.
691 int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME
) *stack
,
696 X509_NAME
*xn
= NULL
;
698 int (*oldcmp
) (const X509_NAME
*const *a
, const X509_NAME
*const *b
);
700 oldcmp
= sk_X509_NAME_set_cmp_func(stack
, xname_cmp
);
702 in
= BIO_new(BIO_s_file_internal());
705 SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK
,
706 ERR_R_MALLOC_FAILURE
);
710 if (!BIO_read_filename(in
, file
))
714 if (PEM_read_bio_X509(in
, &x
, NULL
, NULL
) == NULL
)
716 if ((xn
= X509_get_subject_name(x
)) == NULL
)
718 xn
= X509_NAME_dup(xn
);
721 if (sk_X509_NAME_find(stack
, xn
) >= 0)
724 sk_X509_NAME_push(stack
, xn
);
738 (void)sk_X509_NAME_set_cmp_func(stack
, oldcmp
);
744 * Add a directory of certs to a stack.
745 * \param stack the stack to append to.
746 * \param dir the directory to append from. All files in this directory will be
747 * examined as potential certs. Any that are acceptable to
748 * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will be
750 * \return 1 for success, 0 for failure. Note that in the case of failure some
751 * certs may have been added to \c stack.
754 int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME
) *stack
,
757 OPENSSL_DIR_CTX
*d
= NULL
;
758 const char *filename
;
761 CRYPTO_w_lock(CRYPTO_LOCK_READDIR
);
763 /* Note that a side effect is that the CAs will be sorted by name */
765 while ((filename
= OPENSSL_DIR_read(&d
, dir
))) {
769 if (strlen(dir
) + strlen(filename
) + 2 > sizeof buf
) {
770 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK
,
771 SSL_R_PATH_TOO_LONG
);
774 #ifdef OPENSSL_SYS_VMS
775 r
= BIO_snprintf(buf
, sizeof buf
, "%s%s", dir
, filename
);
777 r
= BIO_snprintf(buf
, sizeof buf
, "%s/%s", dir
, filename
);
779 if (r
<= 0 || r
>= (int)sizeof(buf
))
781 if (!SSL_add_file_cert_subjects_to_stack(stack
, buf
))
786 SYSerr(SYS_F_OPENDIR
, get_last_sys_error());
787 ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir
, "')");
788 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK
, ERR_R_SYS_LIB
);
797 CRYPTO_w_unlock(CRYPTO_LOCK_READDIR
);