1 /*! \file ssl/ssl_cert.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
58 /* ====================================================================
59 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@OpenSSL.org.
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
106 /* ====================================================================
107 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
108 * ECC cipher suite support in OpenSSL originally developed by
109 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
115 #ifndef NO_SYS_TYPES_H
116 # include <sys/types.h>
120 #include <openssl/objects.h>
121 #include <openssl/bio.h>
122 #include <openssl/pem.h>
123 #include <openssl/x509v3.h>
124 #ifndef OPENSSL_NO_DH
125 #include <openssl/dh.h>
127 #include <openssl/bn.h>
128 #include "ssl_locl.h"
130 int SSL_get_ex_data_X509_STORE_CTX_idx(void)
132 static volatile int ssl_x509_store_ctx_idx
= -1;
134 if (ssl_x509_store_ctx_idx
< 0)
136 /* any write lock will do; usually this branch
137 * will only be taken once anyway */
138 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX
);
140 if (ssl_x509_store_ctx_idx
< 0)
142 ssl_x509_store_ctx_idx
=X509_STORE_CTX_get_ex_new_index(
143 0,"SSL for verify callback",NULL
,NULL
,NULL
);
146 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX
);
148 return ssl_x509_store_ctx_idx
;
151 CERT
*ssl_cert_new(void)
155 ret
=(CERT
*)OPENSSL_malloc(sizeof(CERT
));
158 SSLerr(SSL_F_SSL_CERT_NEW
,ERR_R_MALLOC_FAILURE
);
161 memset(ret
,0,sizeof(CERT
));
163 ret
->key
= &(ret
->pkeys
[SSL_PKEY_RSA_ENC
]);
169 CERT
*ssl_cert_dup(CERT
*cert
)
174 ret
= (CERT
*)OPENSSL_malloc(sizeof(CERT
));
177 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_MALLOC_FAILURE
);
181 memset(ret
, 0, sizeof(CERT
));
183 ret
->key
= &ret
->pkeys
[cert
->key
- &cert
->pkeys
[0]];
184 /* or ret->key = ret->pkeys + (cert->key - cert->pkeys),
185 * if you find that more readable */
187 ret
->valid
= cert
->valid
;
188 ret
->mask
= cert
->mask
;
189 ret
->export_mask
= cert
->export_mask
;
191 #ifndef OPENSSL_NO_RSA
192 if (cert
->rsa_tmp
!= NULL
)
194 RSA_up_ref(cert
->rsa_tmp
);
195 ret
->rsa_tmp
= cert
->rsa_tmp
;
197 ret
->rsa_tmp_cb
= cert
->rsa_tmp_cb
;
200 #ifndef OPENSSL_NO_DH
201 if (cert
->dh_tmp
!= NULL
)
203 /* DH parameters don't have a reference count */
204 ret
->dh_tmp
= DHparams_dup(cert
->dh_tmp
);
205 if (ret
->dh_tmp
== NULL
)
207 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_DH_LIB
);
210 if (cert
->dh_tmp
->priv_key
)
212 BIGNUM
*b
= BN_dup(cert
->dh_tmp
->priv_key
);
215 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_BN_LIB
);
218 ret
->dh_tmp
->priv_key
= b
;
220 if (cert
->dh_tmp
->pub_key
)
222 BIGNUM
*b
= BN_dup(cert
->dh_tmp
->pub_key
);
225 SSLerr(SSL_F_SSL_CERT_DUP
, ERR_R_BN_LIB
);
228 ret
->dh_tmp
->pub_key
= b
;
231 ret
->dh_tmp_cb
= cert
->dh_tmp_cb
;
234 #ifndef OPENSSL_NO_ECDH
237 EC_KEY_up_ref(cert
->ecdh_tmp
);
238 ret
->ecdh_tmp
= cert
->ecdh_tmp
;
240 ret
->ecdh_tmp_cb
= cert
->ecdh_tmp_cb
;
243 for (i
= 0; i
< SSL_PKEY_NUM
; i
++)
245 if (cert
->pkeys
[i
].x509
!= NULL
)
247 ret
->pkeys
[i
].x509
= cert
->pkeys
[i
].x509
;
248 CRYPTO_add(&ret
->pkeys
[i
].x509
->references
, 1,
252 if (cert
->pkeys
[i
].privatekey
!= NULL
)
254 ret
->pkeys
[i
].privatekey
= cert
->pkeys
[i
].privatekey
;
255 CRYPTO_add(&ret
->pkeys
[i
].privatekey
->references
, 1,
256 CRYPTO_LOCK_EVP_PKEY
);
260 /* If there was anything special to do for
261 * certain types of keys, we'd do it here.
262 * (Nothing at the moment, I think.) */
264 case SSL_PKEY_RSA_ENC
:
265 case SSL_PKEY_RSA_SIGN
:
266 /* We have an RSA key. */
269 case SSL_PKEY_DSA_SIGN
:
270 /* We have a DSA key. */
273 case SSL_PKEY_DH_RSA
:
274 case SSL_PKEY_DH_DSA
:
275 /* We have a DH key. */
279 /* We have an ECC key */
284 SSLerr(SSL_F_SSL_CERT_DUP
, SSL_R_LIBRARY_BUG
);
289 /* ret->extra_certs *should* exist, but currently the own certificate
290 * chain is held inside SSL_CTX */
296 #ifndef OPENSSL_NO_DH /* avoid 'unreferenced label' warning if OPENSSL_NO_DH is defined */
299 #ifndef OPENSSL_NO_RSA
300 if (ret
->rsa_tmp
!= NULL
)
301 RSA_free(ret
->rsa_tmp
);
303 #ifndef OPENSSL_NO_DH
304 if (ret
->dh_tmp
!= NULL
)
305 DH_free(ret
->dh_tmp
);
307 #ifndef OPENSSL_NO_ECDH
308 if (ret
->ecdh_tmp
!= NULL
)
309 EC_KEY_free(ret
->ecdh_tmp
);
312 for (i
= 0; i
< SSL_PKEY_NUM
; i
++)
314 if (ret
->pkeys
[i
].x509
!= NULL
)
315 X509_free(ret
->pkeys
[i
].x509
);
316 if (ret
->pkeys
[i
].privatekey
!= NULL
)
317 EVP_PKEY_free(ret
->pkeys
[i
].privatekey
);
324 void ssl_cert_free(CERT
*c
)
331 i
=CRYPTO_add(&c
->references
,-1,CRYPTO_LOCK_SSL_CERT
);
339 fprintf(stderr
,"ssl_cert_free, bad reference count\n");
344 #ifndef OPENSSL_NO_RSA
345 if (c
->rsa_tmp
) RSA_free(c
->rsa_tmp
);
347 #ifndef OPENSSL_NO_DH
348 if (c
->dh_tmp
) DH_free(c
->dh_tmp
);
350 #ifndef OPENSSL_NO_ECDH
351 if (c
->ecdh_tmp
) EC_KEY_free(c
->ecdh_tmp
);
354 for (i
=0; i
<SSL_PKEY_NUM
; i
++)
356 if (c
->pkeys
[i
].x509
!= NULL
)
357 X509_free(c
->pkeys
[i
].x509
);
358 if (c
->pkeys
[i
].privatekey
!= NULL
)
359 EVP_PKEY_free(c
->pkeys
[i
].privatekey
);
361 if (c
->pkeys
[i
].publickey
!= NULL
)
362 EVP_PKEY_free(c
->pkeys
[i
].publickey
);
368 int ssl_cert_inst(CERT
**o
)
370 /* Create a CERT if there isn't already one
371 * (which cannot really happen, as it is initially created in
372 * SSL_CTX_new; but the earlier code usually allows for that one
373 * being non-existant, so we follow that behaviour, as it might
374 * turn out that there actually is a reason for it -- but I'm
375 * not sure that *all* of the existing code could cope with
376 * s->cert being NULL, otherwise we could do without the
377 * initialization in SSL_CTX_new).
382 SSLerr(SSL_F_SSL_CERT_INST
, ERR_R_PASSED_NULL_PARAMETER
);
387 if ((*o
= ssl_cert_new()) == NULL
)
389 SSLerr(SSL_F_SSL_CERT_INST
, ERR_R_MALLOC_FAILURE
);
397 SESS_CERT
*ssl_sess_cert_new(void)
401 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
);
431 fprintf(stderr
,"ssl_sess_cert_free, bad reference count\n");
437 if (sc
->cert_chain
!= NULL
)
438 sk_X509_pop_free(sc
->cert_chain
, X509_free
);
439 for (i
= 0; i
< SSL_PKEY_NUM
; i
++)
441 if (sc
->peer_pkeys
[i
].x509
!= NULL
)
442 X509_free(sc
->peer_pkeys
[i
].x509
);
443 #if 0 /* We don't have the peer's private key. These lines are just
444 * here as a reminder that we're still using a not-quite-appropriate
446 if (sc
->peer_pkeys
[i
].privatekey
!= NULL
)
447 EVP_PKEY_free(sc
->peer_pkeys
[i
].privatekey
);
451 #ifndef OPENSSL_NO_RSA
452 if (sc
->peer_rsa_tmp
!= NULL
)
453 RSA_free(sc
->peer_rsa_tmp
);
455 #ifndef OPENSSL_NO_DH
456 if (sc
->peer_dh_tmp
!= NULL
)
457 DH_free(sc
->peer_dh_tmp
);
459 #ifndef OPENSSL_NO_ECDH
460 if (sc
->peer_ecdh_tmp
!= NULL
)
461 EC_KEY_free(sc
->peer_ecdh_tmp
);
467 int ssl_set_peer_cert_type(SESS_CERT
*sc
,int type
)
469 sc
->peer_cert_type
= type
;
473 int ssl_verify_cert_chain(SSL
*s
,STACK_OF(X509
) *sk
)
479 if ((sk
== NULL
) || (sk_X509_num(sk
) == 0))
482 x
=sk_X509_value(sk
,0);
483 if(!X509_STORE_CTX_init(&ctx
,s
->ctx
->cert_store
,x
,sk
))
485 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN
,ERR_R_X509_LIB
);
489 X509_VERIFY_PARAM_inherit(X509_STORE_CTX_get0_param(&ctx
),
492 if (SSL_get_verify_depth(s
) >= 0)
493 X509_STORE_CTX_set_depth(&ctx
, SSL_get_verify_depth(s
));
495 X509_STORE_CTX_set_ex_data(&ctx
,SSL_get_ex_data_X509_STORE_CTX_idx(),s
);
497 /* We need to inherit the verify parameters. These can be determined by
498 * the context: if its a server it will verify SSL client certificates
502 X509_STORE_CTX_set_default(&ctx
,
503 s
->server
? "ssl_client" : "ssl_server");
505 if (s
->verify_callback
)
506 X509_STORE_CTX_set_verify_cb(&ctx
, s
->verify_callback
);
508 if (s
->ctx
->app_verify_callback
!= NULL
)
509 #if 1 /* new with OpenSSL 0.9.7 */
510 i
=s
->ctx
->app_verify_callback(&ctx
, s
->ctx
->app_verify_arg
);
512 i
=s
->ctx
->app_verify_callback(&ctx
); /* should pass app_verify_arg */
516 #ifndef OPENSSL_NO_X509_VERIFY
517 i
=X509_verify_cert(&ctx
);
520 ctx
.error
=X509_V_ERR_APPLICATION_VERIFICATION
;
521 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN
,SSL_R_NO_VERIFY_CALLBACK
);
525 s
->verify_result
=ctx
.error
;
526 X509_STORE_CTX_cleanup(&ctx
);
531 static void set_client_CA_list(STACK_OF(X509_NAME
) **ca_list
,STACK_OF(X509_NAME
) *name_list
)
533 if (*ca_list
!= NULL
)
534 sk_X509_NAME_pop_free(*ca_list
,X509_NAME_free
);
539 STACK_OF(X509_NAME
) *SSL_dup_CA_list(STACK_OF(X509_NAME
) *sk
)
542 STACK_OF(X509_NAME
) *ret
;
545 ret
=sk_X509_NAME_new_null();
546 for (i
=0; i
<sk_X509_NAME_num(sk
); i
++)
548 name
=X509_NAME_dup(sk_X509_NAME_value(sk
,i
));
549 if ((name
== NULL
) || !sk_X509_NAME_push(ret
,name
))
551 sk_X509_NAME_pop_free(ret
,X509_NAME_free
);
558 void SSL_set_client_CA_list(SSL
*s
,STACK_OF(X509_NAME
) *name_list
)
560 set_client_CA_list(&(s
->client_CA
),name_list
);
563 void SSL_CTX_set_client_CA_list(SSL_CTX
*ctx
,STACK_OF(X509_NAME
) *name_list
)
565 set_client_CA_list(&(ctx
->client_CA
),name_list
);
568 STACK_OF(X509_NAME
) *SSL_CTX_get_client_CA_list(const SSL_CTX
*ctx
)
570 return(ctx
->client_CA
);
573 STACK_OF(X509_NAME
) *SSL_get_client_CA_list(const SSL
*s
)
575 if (s
->type
== SSL_ST_CONNECT
)
576 { /* we are in the client */
577 if (((s
->version
>>8) == SSL3_VERSION_MAJOR
) &&
579 return(s
->s3
->tmp
.ca_names
);
585 if (s
->client_CA
!= NULL
)
586 return(s
->client_CA
);
588 return(s
->ctx
->client_CA
);
592 static int add_client_CA(STACK_OF(X509_NAME
) **sk
,X509
*x
)
596 if (x
== NULL
) return(0);
597 if ((*sk
== NULL
) && ((*sk
=sk_X509_NAME_new_null()) == NULL
))
600 if ((name
=X509_NAME_dup(X509_get_subject_name(x
))) == NULL
)
603 if (!sk_X509_NAME_push(*sk
,name
))
605 X509_NAME_free(name
);
611 int SSL_add_client_CA(SSL
*ssl
,X509
*x
)
613 return(add_client_CA(&(ssl
->client_CA
),x
));
616 int SSL_CTX_add_client_CA(SSL_CTX
*ctx
,X509
*x
)
618 return(add_client_CA(&(ctx
->client_CA
),x
));
621 static int xname_cmp(const X509_NAME
* const *a
, const X509_NAME
* const *b
)
623 return(X509_NAME_cmp(*a
,*b
));
626 #ifndef OPENSSL_NO_STDIO
628 * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed;
629 * it doesn't really have anything to do with clients (except that a common use
630 * for a stack of CAs is to send it to the client). Actually, it doesn't have
631 * much to do with CAs, either, since it will load any old cert.
632 * \param file the file containing one or more certs.
633 * \return a ::STACK containing the certs.
635 STACK_OF(X509_NAME
) *SSL_load_client_CA_file(const char *file
)
640 STACK_OF(X509_NAME
) *ret
= NULL
,*sk
;
642 sk
=sk_X509_NAME_new(xname_cmp
);
644 in
=BIO_new(BIO_s_file_internal());
646 if ((sk
== NULL
) || (in
== NULL
))
648 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE
,ERR_R_MALLOC_FAILURE
);
652 if (!BIO_read_filename(in
,file
))
657 if (PEM_read_bio_X509(in
,&x
,NULL
,NULL
) == NULL
)
661 ret
= sk_X509_NAME_new_null();
664 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE
,ERR_R_MALLOC_FAILURE
);
668 if ((xn
=X509_get_subject_name(x
)) == NULL
) goto err
;
669 /* check for duplicates */
670 xn
=X509_NAME_dup(xn
);
671 if (xn
== NULL
) goto err
;
672 if (sk_X509_NAME_find(sk
,xn
) >= 0)
676 sk_X509_NAME_push(sk
,xn
);
677 sk_X509_NAME_push(ret
,xn
);
684 if (ret
!= NULL
) sk_X509_NAME_pop_free(ret
,X509_NAME_free
);
687 if (sk
!= NULL
) sk_X509_NAME_free(sk
);
688 if (in
!= NULL
) BIO_free(in
);
689 if (x
!= NULL
) X509_free(x
);
697 * Add a file of certs to a stack.
698 * \param stack the stack to add to.
699 * \param file the file to add from. All certs in this file that are not
700 * already in the stack will be added.
701 * \return 1 for success, 0 for failure. Note that in the case of failure some
702 * certs may have been added to \c stack.
705 int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME
) *stack
,
712 int (*oldcmp
)(const X509_NAME
* const *a
, const X509_NAME
* const *b
);
714 oldcmp
=sk_X509_NAME_set_cmp_func(stack
,xname_cmp
);
716 in
=BIO_new(BIO_s_file_internal());
720 SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK
,ERR_R_MALLOC_FAILURE
);
724 if (!BIO_read_filename(in
,file
))
729 if (PEM_read_bio_X509(in
,&x
,NULL
,NULL
) == NULL
)
731 if ((xn
=X509_get_subject_name(x
)) == NULL
) goto err
;
732 xn
=X509_NAME_dup(xn
);
733 if (xn
== NULL
) goto err
;
734 if (sk_X509_NAME_find(stack
,xn
) >= 0)
737 sk_X509_NAME_push(stack
,xn
);
750 sk_X509_NAME_set_cmp_func(stack
,oldcmp
);
756 * Add a directory of certs to a stack.
757 * \param stack the stack to append to.
758 * \param dir the directory to append from. All files in this directory will be
759 * examined as potential certs. Any that are acceptable to
760 * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will be
762 * \return 1 for success, 0 for failure. Note that in the case of failure some
763 * certs may have been added to \c stack.
766 int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME
) *stack
,
769 OPENSSL_DIR_CTX
*d
= NULL
;
770 const char *filename
;
773 CRYPTO_w_lock(CRYPTO_LOCK_READDIR
);
775 /* Note that a side effect is that the CAs will be sorted by name */
777 while((filename
= OPENSSL_DIR_read(&d
, dir
)))
782 if(strlen(dir
)+strlen(filename
)+2 > sizeof buf
)
784 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK
,SSL_R_PATH_TOO_LONG
);
788 #ifdef OPENSSL_SYS_VMS
789 r
= BIO_snprintf(buf
,sizeof buf
,"%s%s",dir
,filename
);
791 r
= BIO_snprintf(buf
,sizeof buf
,"%s/%s",dir
,filename
);
793 if (r
<= 0 || r
>= (int)sizeof(buf
))
795 if(!SSL_add_file_cert_subjects_to_stack(stack
,buf
))
801 SYSerr(SYS_F_OPENDIR
, get_last_sys_error());
802 ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir
, "')");
803 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK
, ERR_R_SYS_LIB
);
810 if (d
) OPENSSL_DIR_end(&d
);
811 CRYPTO_w_unlock(CRYPTO_LOCK_READDIR
);