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) 1998-2006 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 CERT
*ssl_cert_new(void)
168 ret
= (CERT
*)OPENSSL_malloc(sizeof(CERT
));
170 SSLerr(SSL_F_SSL_CERT_NEW
, ERR_R_MALLOC_FAILURE
);
173 memset(ret
, 0, sizeof(CERT
));
175 ret
->key
= &(ret
->pkeys
[SSL_PKEY_RSA_ENC
]);
181 CERT
*ssl_cert_dup(CERT
*cert
)
186 ret
= (CERT
*)OPENSSL_malloc(sizeof(CERT
));
188 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_MALLOC_FAILURE
);
192 memset(ret
, 0, sizeof(CERT
));
194 ret
->key
= &ret
->pkeys
[cert
->key
- &cert
->pkeys
[0]];
196 * or ret->key = ret->pkeys + (cert->key - cert->pkeys), if you find that
200 ret
->valid
= cert
->valid
;
201 ret
->mask
= cert
->mask
;
202 ret
->export_mask
= cert
->export_mask
;
204 #ifndef OPENSSL_NO_RSA
205 if (cert
->rsa_tmp
!= NULL
) {
206 RSA_up_ref(cert
->rsa_tmp
);
207 ret
->rsa_tmp
= cert
->rsa_tmp
;
209 ret
->rsa_tmp_cb
= cert
->rsa_tmp_cb
;
212 #ifndef OPENSSL_NO_DH
213 if (cert
->dh_tmp
!= NULL
) {
214 ret
->dh_tmp
= DHparams_dup(cert
->dh_tmp
);
215 if (ret
->dh_tmp
== NULL
) {
216 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_DH_LIB
);
219 if (cert
->dh_tmp
->priv_key
) {
220 BIGNUM
*b
= BN_dup(cert
->dh_tmp
->priv_key
);
222 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_BN_LIB
);
225 ret
->dh_tmp
->priv_key
= b
;
227 if (cert
->dh_tmp
->pub_key
) {
228 BIGNUM
*b
= BN_dup(cert
->dh_tmp
->pub_key
);
230 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_BN_LIB
);
233 ret
->dh_tmp
->pub_key
= b
;
236 ret
->dh_tmp_cb
= cert
->dh_tmp_cb
;
239 #ifndef OPENSSL_NO_ECDH
240 if (cert
->ecdh_tmp
) {
241 ret
->ecdh_tmp
= EC_KEY_dup(cert
->ecdh_tmp
);
242 if (ret
->ecdh_tmp
== NULL
) {
243 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_EC_LIB
);
247 ret
->ecdh_tmp_cb
= cert
->ecdh_tmp_cb
;
250 for (i
= 0; i
< SSL_PKEY_NUM
; i
++) {
251 if (cert
->pkeys
[i
].x509
!= NULL
) {
252 ret
->pkeys
[i
].x509
= cert
->pkeys
[i
].x509
;
253 CRYPTO_add(&ret
->pkeys
[i
].x509
->references
, 1, CRYPTO_LOCK_X509
);
256 if (cert
->pkeys
[i
].privatekey
!= NULL
) {
257 ret
->pkeys
[i
].privatekey
= cert
->pkeys
[i
].privatekey
;
258 CRYPTO_add(&ret
->pkeys
[i
].privatekey
->references
, 1,
259 CRYPTO_LOCK_EVP_PKEY
);
263 * If there was anything special to do for certain types of
264 * keys, we'd do it here. (Nothing at the moment, I think.)
267 case SSL_PKEY_RSA_ENC
:
268 case SSL_PKEY_RSA_SIGN
:
269 /* We have an RSA key. */
272 case SSL_PKEY_DSA_SIGN
:
273 /* We have a DSA key. */
276 case SSL_PKEY_DH_RSA
:
277 case SSL_PKEY_DH_DSA
:
278 /* We have a DH key. */
282 /* We have an ECC key */
287 SSLerr(SSL_F_SSL_CERT_DUP
, SSL_R_LIBRARY_BUG
);
293 * ret->extra_certs *should* exist, but currently the own certificate
294 * chain is held inside SSL_CTX
301 #if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_ECDH)
304 #ifndef OPENSSL_NO_RSA
305 if (ret
->rsa_tmp
!= NULL
)
306 RSA_free(ret
->rsa_tmp
);
308 #ifndef OPENSSL_NO_DH
309 if (ret
->dh_tmp
!= NULL
)
310 DH_free(ret
->dh_tmp
);
312 #ifndef OPENSSL_NO_ECDH
313 if (ret
->ecdh_tmp
!= NULL
)
314 EC_KEY_free(ret
->ecdh_tmp
);
317 for (i
= 0; i
< SSL_PKEY_NUM
; i
++) {
318 if (ret
->pkeys
[i
].x509
!= NULL
)
319 X509_free(ret
->pkeys
[i
].x509
);
320 if (ret
->pkeys
[i
].privatekey
!= NULL
)
321 EVP_PKEY_free(ret
->pkeys
[i
].privatekey
);
327 void ssl_cert_free(CERT
*c
)
334 i
= CRYPTO_add(&c
->references
, -1, CRYPTO_LOCK_SSL_CERT
);
336 REF_PRINT("CERT", c
);
342 fprintf(stderr
, "ssl_cert_free, bad reference count\n");
347 #ifndef OPENSSL_NO_RSA
349 RSA_free(c
->rsa_tmp
);
351 #ifndef OPENSSL_NO_DH
355 #ifndef OPENSSL_NO_ECDH
357 EC_KEY_free(c
->ecdh_tmp
);
360 for (i
= 0; i
< SSL_PKEY_NUM
; i
++) {
361 if (c
->pkeys
[i
].x509
!= NULL
)
362 X509_free(c
->pkeys
[i
].x509
);
363 if (c
->pkeys
[i
].privatekey
!= NULL
)
364 EVP_PKEY_free(c
->pkeys
[i
].privatekey
);
366 if (c
->pkeys
[i
].publickey
!= NULL
)
367 EVP_PKEY_free(c
->pkeys
[i
].publickey
);
373 int ssl_cert_inst(CERT
**o
)
376 * Create a CERT if there isn't already one (which cannot really happen,
377 * as it is initially created in SSL_CTX_new; but the earlier code
378 * usually allows for that one being non-existant, so we follow that
379 * behaviour, as it might turn out that there actually is a reason for it
380 * -- but I'm not sure that *all* of the existing code could cope with
381 * s->cert being NULL, otherwise we could do without the initialization
386 SSLerr(SSL_F_SSL_CERT_INST
, ERR_R_PASSED_NULL_PARAMETER
);
390 if ((*o
= ssl_cert_new()) == NULL
) {
391 SSLerr(SSL_F_SSL_CERT_INST
, ERR_R_MALLOC_FAILURE
);
398 SESS_CERT
*ssl_sess_cert_new(void)
402 ret
= OPENSSL_malloc(sizeof *ret
);
404 SSLerr(SSL_F_SSL_SESS_CERT_NEW
, ERR_R_MALLOC_FAILURE
);
408 memset(ret
, 0, sizeof *ret
);
409 ret
->peer_key
= &(ret
->peer_pkeys
[SSL_PKEY_RSA_ENC
]);
415 void ssl_sess_cert_free(SESS_CERT
*sc
)
422 i
= CRYPTO_add(&sc
->references
, -1, CRYPTO_LOCK_SSL_SESS_CERT
);
424 REF_PRINT("SESS_CERT", sc
);
430 fprintf(stderr
, "ssl_sess_cert_free, bad reference count\n");
436 if (sc
->cert_chain
!= NULL
)
437 sk_X509_pop_free(sc
->cert_chain
, X509_free
);
438 for (i
= 0; i
< SSL_PKEY_NUM
; i
++) {
439 if (sc
->peer_pkeys
[i
].x509
!= NULL
)
440 X509_free(sc
->peer_pkeys
[i
].x509
);
441 #if 0 /* We don't have the peer's private key.
442 * These lines are just * here as a reminder
443 * that we're still using a
444 * not-quite-appropriate * data structure. */
445 if (sc
->peer_pkeys
[i
].privatekey
!= NULL
)
446 EVP_PKEY_free(sc
->peer_pkeys
[i
].privatekey
);
450 #ifndef OPENSSL_NO_RSA
451 if (sc
->peer_rsa_tmp
!= NULL
)
452 RSA_free(sc
->peer_rsa_tmp
);
454 #ifndef OPENSSL_NO_DH
455 if (sc
->peer_dh_tmp
!= NULL
)
456 DH_free(sc
->peer_dh_tmp
);
458 #ifndef OPENSSL_NO_ECDH
459 if (sc
->peer_ecdh_tmp
!= NULL
)
460 EC_KEY_free(sc
->peer_ecdh_tmp
);
466 int ssl_set_peer_cert_type(SESS_CERT
*sc
, int type
)
468 sc
->peer_cert_type
= type
;
472 int ssl_verify_cert_chain(SSL
*s
, STACK_OF(X509
) *sk
)
478 if ((sk
== NULL
) || (sk_X509_num(sk
) == 0))
481 x
= sk_X509_value(sk
, 0);
482 if (!X509_STORE_CTX_init(&ctx
, s
->ctx
->cert_store
, x
, sk
)) {
483 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN
, ERR_R_X509_LIB
);
487 if (SSL_get_verify_depth(s
) >= 0)
488 X509_STORE_CTX_set_depth(&ctx
, SSL_get_verify_depth(s
));
490 X509_STORE_CTX_set_ex_data(&ctx
, SSL_get_ex_data_X509_STORE_CTX_idx(), s
);
493 * We need to inherit the verify parameters. These can be determined by
494 * the context: if its a server it will verify SSL client certificates or
498 X509_STORE_CTX_set_default(&ctx
, s
->server
? "ssl_client" : "ssl_server");
500 * Anything non-default in "param" should overwrite anything in the ctx.
502 X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(&ctx
), s
->param
);
504 if (s
->verify_callback
)
505 X509_STORE_CTX_set_verify_cb(&ctx
, s
->verify_callback
);
507 if (s
->ctx
->app_verify_callback
!= NULL
)
508 #if 1 /* new with OpenSSL 0.9.7 */
509 i
= s
->ctx
->app_verify_callback(&ctx
, s
->ctx
->app_verify_arg
);
511 i
= s
->ctx
->app_verify_callback(&ctx
); /* should pass app_verify_arg */
514 #ifndef OPENSSL_NO_X509_VERIFY
515 i
= X509_verify_cert(&ctx
);
518 ctx
.error
= X509_V_ERR_APPLICATION_VERIFICATION
;
519 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN
, SSL_R_NO_VERIFY_CALLBACK
);
523 s
->verify_result
= ctx
.error
;
524 X509_STORE_CTX_cleanup(&ctx
);
529 static void set_client_CA_list(STACK_OF(X509_NAME
) **ca_list
,
530 STACK_OF(X509_NAME
) *name_list
)
532 if (*ca_list
!= NULL
)
533 sk_X509_NAME_pop_free(*ca_list
, X509_NAME_free
);
535 *ca_list
= name_list
;
538 STACK_OF(X509_NAME
) *SSL_dup_CA_list(STACK_OF(X509_NAME
) *sk
)
541 STACK_OF(X509_NAME
) *ret
;
544 ret
= sk_X509_NAME_new_null();
545 for (i
= 0; i
< sk_X509_NAME_num(sk
); i
++) {
546 name
= X509_NAME_dup(sk_X509_NAME_value(sk
, i
));
547 if ((name
== NULL
) || !sk_X509_NAME_push(ret
, name
)) {
548 sk_X509_NAME_pop_free(ret
, X509_NAME_free
);
555 void SSL_set_client_CA_list(SSL
*s
, STACK_OF(X509_NAME
) *name_list
)
557 set_client_CA_list(&(s
->client_CA
), name_list
);
560 void SSL_CTX_set_client_CA_list(SSL_CTX
*ctx
, STACK_OF(X509_NAME
) *name_list
)
562 set_client_CA_list(&(ctx
->client_CA
), name_list
);
565 STACK_OF(X509_NAME
) *SSL_CTX_get_client_CA_list(const SSL_CTX
*ctx
)
567 return (ctx
->client_CA
);
570 STACK_OF(X509_NAME
) *SSL_get_client_CA_list(const SSL
*s
)
572 if (s
->type
== SSL_ST_CONNECT
) { /* we are in the client */
573 if (((s
->version
>> 8) == SSL3_VERSION_MAJOR
) && (s
->s3
!= NULL
))
574 return (s
->s3
->tmp
.ca_names
);
578 if (s
->client_CA
!= NULL
)
579 return (s
->client_CA
);
581 return (s
->ctx
->client_CA
);
585 static int add_client_CA(STACK_OF(X509_NAME
) **sk
, X509
*x
)
591 if ((*sk
== NULL
) && ((*sk
= sk_X509_NAME_new_null()) == NULL
))
594 if ((name
= X509_NAME_dup(X509_get_subject_name(x
))) == NULL
)
597 if (!sk_X509_NAME_push(*sk
, name
)) {
598 X509_NAME_free(name
);
604 int SSL_add_client_CA(SSL
*ssl
, X509
*x
)
606 return (add_client_CA(&(ssl
->client_CA
), x
));
609 int SSL_CTX_add_client_CA(SSL_CTX
*ctx
, X509
*x
)
611 return (add_client_CA(&(ctx
->client_CA
), x
));
614 static int xname_cmp(const X509_NAME
*const *a
, const X509_NAME
*const *b
)
616 return (X509_NAME_cmp(*a
, *b
));
619 #ifndef OPENSSL_NO_STDIO
621 * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed;
622 * it doesn't really have anything to do with clients (except that a common use
623 * for a stack of CAs is to send it to the client). Actually, it doesn't have
624 * much to do with CAs, either, since it will load any old cert.
625 * \param file the file containing one or more certs.
626 * \return a ::STACK containing the certs.
628 STACK_OF(X509_NAME
) *SSL_load_client_CA_file(const char *file
)
632 X509_NAME
*xn
= NULL
;
633 STACK_OF(X509_NAME
) *ret
= NULL
, *sk
;
635 sk
= sk_X509_NAME_new(xname_cmp
);
637 in
= BIO_new(BIO_s_file_internal());
639 if ((sk
== NULL
) || (in
== NULL
)) {
640 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE
, ERR_R_MALLOC_FAILURE
);
644 if (!BIO_read_filename(in
, file
))
648 if (PEM_read_bio_X509(in
, &x
, NULL
, NULL
) == NULL
)
651 ret
= sk_X509_NAME_new_null();
653 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE
, ERR_R_MALLOC_FAILURE
);
657 if ((xn
= X509_get_subject_name(x
)) == NULL
)
659 /* check for duplicates */
660 xn
= X509_NAME_dup(xn
);
663 if (sk_X509_NAME_find(sk
, xn
) >= 0)
666 sk_X509_NAME_push(sk
, xn
);
667 sk_X509_NAME_push(ret
, xn
);
674 sk_X509_NAME_pop_free(ret
, X509_NAME_free
);
678 sk_X509_NAME_free(sk
);
690 * Add a file of certs to a stack.
691 * \param stack the stack to add to.
692 * \param file the file to add from. All certs in this file that are not
693 * already in the stack will be added.
694 * \return 1 for success, 0 for failure. Note that in the case of failure some
695 * certs may have been added to \c stack.
698 int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME
) *stack
,
703 X509_NAME
*xn
= NULL
;
705 int (*oldcmp
) (const X509_NAME
*const *a
, const X509_NAME
*const *b
);
707 oldcmp
= sk_X509_NAME_set_cmp_func(stack
, xname_cmp
);
709 in
= BIO_new(BIO_s_file_internal());
712 SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK
,
713 ERR_R_MALLOC_FAILURE
);
717 if (!BIO_read_filename(in
, file
))
721 if (PEM_read_bio_X509(in
, &x
, NULL
, NULL
) == NULL
)
723 if ((xn
= X509_get_subject_name(x
)) == NULL
)
725 xn
= X509_NAME_dup(xn
);
728 if (sk_X509_NAME_find(stack
, xn
) >= 0)
731 sk_X509_NAME_push(stack
, xn
);
745 (void)sk_X509_NAME_set_cmp_func(stack
, oldcmp
);
751 * Add a directory of certs to a stack.
752 * \param stack the stack to append to.
753 * \param dir the directory to append from. All files in this directory will be
754 * examined as potential certs. Any that are acceptable to
755 * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will be
757 * \return 1 for success, 0 for failure. Note that in the case of failure some
758 * certs may have been added to \c stack.
761 int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME
) *stack
,
764 OPENSSL_DIR_CTX
*d
= NULL
;
765 const char *filename
;
768 CRYPTO_w_lock(CRYPTO_LOCK_READDIR
);
770 /* Note that a side effect is that the CAs will be sorted by name */
772 while ((filename
= OPENSSL_DIR_read(&d
, dir
))) {
776 if (strlen(dir
) + strlen(filename
) + 2 > sizeof buf
) {
777 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK
,
778 SSL_R_PATH_TOO_LONG
);
781 #ifdef OPENSSL_SYS_VMS
782 r
= BIO_snprintf(buf
, sizeof buf
, "%s%s", dir
, filename
);
784 r
= BIO_snprintf(buf
, sizeof buf
, "%s/%s", dir
, filename
);
786 if (r
<= 0 || r
>= (int)sizeof(buf
))
788 if (!SSL_add_file_cert_subjects_to_stack(stack
, buf
))
793 SYSerr(SYS_F_OPENDIR
, get_last_sys_error());
794 ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir
, "')");
795 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK
, ERR_R_SYS_LIB
);
804 CRYPTO_w_unlock(CRYPTO_LOCK_READDIR
);