1 /* $OpenBSD: ssl_cert.c,v 1.72 2018/11/19 14:42:01 jsing 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 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. 60 * 61 * Redistribution and use in source and binary forms, with or without 62 * modification, are permitted provided that the following conditions 63 * are met: 64 * 65 * 1. Redistributions of source code must retain the above copyright 66 * notice, this list of conditions and the following disclaimer. 67 * 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 71 * distribution. 72 * 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/)" 77 * 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. 82 * 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. 86 * 87 * 6. Redistributions of any form whatsoever must retain the following 88 * acknowledgment: 89 * "This product includes software developed by the OpenSSL Project 90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 91 * 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 * ==================================================================== 105 * 106 * This product includes cryptographic software written by Eric Young 107 * (eay@cryptsoft.com). This product includes software written by Tim 108 * Hudson (tjh@cryptsoft.com). 109 * 110 */ 111 /* ==================================================================== 112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. 113 * ECC cipher suite support in OpenSSL originally developed by 114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. 115 */ 116 117 #include <sys/types.h> 118 119 #include <dirent.h> 120 #include <stdio.h> 121 #include <unistd.h> 122 123 #include <openssl/bio.h> 124 #include <openssl/bn.h> 125 #include <openssl/dh.h> 126 #include <openssl/objects.h> 127 #include <openssl/opensslconf.h> 128 #include <openssl/pem.h> 129 #include <openssl/x509v3.h> 130 131 #include "ssl_locl.h" 132 133 int 134 SSL_get_ex_data_X509_STORE_CTX_idx(void) 135 { 136 static volatile int ssl_x509_store_ctx_idx = -1; 137 int got_write_lock = 0; 138 139 CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); 140 141 if (ssl_x509_store_ctx_idx < 0) { 142 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 143 CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); 144 got_write_lock = 1; 145 146 if (ssl_x509_store_ctx_idx < 0) { 147 ssl_x509_store_ctx_idx = 148 X509_STORE_CTX_get_ex_new_index( 149 0, "SSL for verify callback", NULL, NULL, NULL); 150 } 151 } 152 153 if (got_write_lock) 154 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); 155 else 156 CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); 157 158 return ssl_x509_store_ctx_idx; 159 } 160 161 static void 162 ssl_cert_set_default_sigalgs(CERT *cert) 163 { 164 /* Set digest values to defaults */ 165 cert->pkeys[SSL_PKEY_RSA_SIGN].sigalg = 166 ssl_sigalg_lookup(SIGALG_RSA_PKCS1_SHA1); 167 cert->pkeys[SSL_PKEY_RSA_ENC].sigalg = 168 ssl_sigalg_lookup(SIGALG_RSA_PKCS1_SHA1); 169 cert->pkeys[SSL_PKEY_ECC].sigalg = 170 ssl_sigalg_lookup(SIGALG_ECDSA_SHA1); 171 #ifndef OPENSSL_NO_GOST 172 cert->pkeys[SSL_PKEY_GOST01].sigalg = 173 ssl_sigalg_lookup(SIGALG_GOSTR01_GOST94); 174 #endif 175 } 176 177 CERT * 178 ssl_cert_new(void) 179 { 180 CERT *ret; 181 182 ret = calloc(1, sizeof(CERT)); 183 if (ret == NULL) { 184 SSLerrorx(ERR_R_MALLOC_FAILURE); 185 return (NULL); 186 } 187 ret->key = &(ret->pkeys[SSL_PKEY_RSA_ENC]); 188 ret->references = 1; 189 ssl_cert_set_default_sigalgs(ret); 190 return (ret); 191 } 192 193 CERT * 194 ssl_cert_dup(CERT *cert) 195 { 196 CERT *ret; 197 int i; 198 199 ret = calloc(1, sizeof(CERT)); 200 if (ret == NULL) { 201 SSLerrorx(ERR_R_MALLOC_FAILURE); 202 return (NULL); 203 } 204 205 /* 206 * same as ret->key = ret->pkeys + (cert->key - cert->pkeys), 207 * if you find that more readable 208 */ 209 ret->key = &ret->pkeys[cert->key - &cert->pkeys[0]]; 210 211 ret->valid = cert->valid; 212 ret->mask_k = cert->mask_k; 213 ret->mask_a = cert->mask_a; 214 215 if (cert->dh_tmp != NULL) { 216 ret->dh_tmp = DHparams_dup(cert->dh_tmp); 217 if (ret->dh_tmp == NULL) { 218 SSLerrorx(ERR_R_DH_LIB); 219 goto err; 220 } 221 if (cert->dh_tmp->priv_key) { 222 BIGNUM *b = BN_dup(cert->dh_tmp->priv_key); 223 if (!b) { 224 SSLerrorx(ERR_R_BN_LIB); 225 goto err; 226 } 227 ret->dh_tmp->priv_key = b; 228 } 229 if (cert->dh_tmp->pub_key) { 230 BIGNUM *b = BN_dup(cert->dh_tmp->pub_key); 231 if (!b) { 232 SSLerrorx(ERR_R_BN_LIB); 233 goto err; 234 } 235 ret->dh_tmp->pub_key = b; 236 } 237 } 238 ret->dh_tmp_cb = cert->dh_tmp_cb; 239 ret->dh_tmp_auto = cert->dh_tmp_auto; 240 241 for (i = 0; i < SSL_PKEY_NUM; i++) { 242 if (cert->pkeys[i].x509 != NULL) { 243 ret->pkeys[i].x509 = cert->pkeys[i].x509; 244 CRYPTO_add(&ret->pkeys[i].x509->references, 1, 245 CRYPTO_LOCK_X509); 246 } 247 248 if (cert->pkeys[i].privatekey != NULL) { 249 ret->pkeys[i].privatekey = cert->pkeys[i].privatekey; 250 CRYPTO_add(&ret->pkeys[i].privatekey->references, 1, 251 CRYPTO_LOCK_EVP_PKEY); 252 253 switch (i) { 254 /* 255 * If there was anything special to do for 256 * certain types of keys, we'd do it here. 257 * (Nothing at the moment, I think.) 258 */ 259 260 case SSL_PKEY_RSA_ENC: 261 case SSL_PKEY_RSA_SIGN: 262 /* We have an RSA key. */ 263 break; 264 265 case SSL_PKEY_DH_RSA: 266 /* We have a DH key. */ 267 break; 268 269 case SSL_PKEY_ECC: 270 /* We have an ECC key */ 271 break; 272 273 default: 274 /* Can't happen. */ 275 SSLerrorx(SSL_R_LIBRARY_BUG); 276 } 277 } 278 } 279 280 /* 281 * ret->extra_certs *should* exist, but currently the own certificate 282 * chain is held inside SSL_CTX 283 */ 284 285 ret->references = 1; 286 /* 287 * Set sigalgs to defaults. NB: we don't copy existing values 288 * as they will be set during handshake. 289 */ 290 ssl_cert_set_default_sigalgs(ret); 291 292 return (ret); 293 294 err: 295 DH_free(ret->dh_tmp); 296 297 for (i = 0; i < SSL_PKEY_NUM; i++) { 298 X509_free(ret->pkeys[i].x509); 299 EVP_PKEY_free(ret->pkeys[i].privatekey); 300 } 301 free (ret); 302 return NULL; 303 } 304 305 306 void 307 ssl_cert_free(CERT *c) 308 { 309 int i; 310 311 if (c == NULL) 312 return; 313 314 i = CRYPTO_add(&c->references, -1, CRYPTO_LOCK_SSL_CERT); 315 if (i > 0) 316 return; 317 318 DH_free(c->dh_tmp); 319 320 for (i = 0; i < SSL_PKEY_NUM; i++) { 321 X509_free(c->pkeys[i].x509); 322 EVP_PKEY_free(c->pkeys[i].privatekey); 323 } 324 325 free(c); 326 } 327 328 SESS_CERT * 329 ssl_sess_cert_new(void) 330 { 331 SESS_CERT *ret; 332 333 ret = calloc(1, sizeof *ret); 334 if (ret == NULL) { 335 SSLerrorx(ERR_R_MALLOC_FAILURE); 336 return NULL; 337 } 338 ret->peer_key = &(ret->peer_pkeys[SSL_PKEY_RSA_ENC]); 339 ret->references = 1; 340 341 return ret; 342 } 343 344 void 345 ssl_sess_cert_free(SESS_CERT *sc) 346 { 347 int i; 348 349 if (sc == NULL) 350 return; 351 352 i = CRYPTO_add(&sc->references, -1, CRYPTO_LOCK_SSL_SESS_CERT); 353 if (i > 0) 354 return; 355 356 sk_X509_pop_free(sc->cert_chain, X509_free); 357 for (i = 0; i < SSL_PKEY_NUM; i++) 358 X509_free(sc->peer_pkeys[i].x509); 359 360 DH_free(sc->peer_dh_tmp); 361 EC_KEY_free(sc->peer_ecdh_tmp); 362 free(sc->peer_x25519_tmp); 363 364 free(sc); 365 } 366 367 int 368 ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk) 369 { 370 X509_STORE_CTX ctx; 371 X509 *x; 372 int ret; 373 374 if ((sk == NULL) || (sk_X509_num(sk) == 0)) 375 return (0); 376 377 x = sk_X509_value(sk, 0); 378 if (!X509_STORE_CTX_init(&ctx, s->ctx->cert_store, x, sk)) { 379 SSLerror(s, ERR_R_X509_LIB); 380 return (0); 381 } 382 X509_STORE_CTX_set_ex_data(&ctx, 383 SSL_get_ex_data_X509_STORE_CTX_idx(), s); 384 385 /* 386 * We need to inherit the verify parameters. These can be 387 * determined by the context: if its a server it will verify 388 * SSL client certificates or vice versa. 389 */ 390 X509_STORE_CTX_set_default(&ctx, 391 s->server ? "ssl_client" : "ssl_server"); 392 393 /* 394 * Anything non-default in "param" should overwrite anything 395 * in the ctx. 396 */ 397 X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(&ctx), s->param); 398 399 if (s->internal->verify_callback) 400 X509_STORE_CTX_set_verify_cb(&ctx, s->internal->verify_callback); 401 402 if (s->ctx->internal->app_verify_callback != NULL) 403 ret = s->ctx->internal->app_verify_callback(&ctx, 404 s->ctx->internal->app_verify_arg); 405 else 406 ret = X509_verify_cert(&ctx); 407 408 s->verify_result = ctx.error; 409 X509_STORE_CTX_cleanup(&ctx); 410 411 return (ret); 412 } 413 414 static void 415 set_client_CA_list(STACK_OF(X509_NAME) **ca_list, 416 STACK_OF(X509_NAME) *name_list) 417 { 418 sk_X509_NAME_pop_free(*ca_list, X509_NAME_free); 419 *ca_list = name_list; 420 } 421 422 STACK_OF(X509_NAME) * 423 SSL_dup_CA_list(const STACK_OF(X509_NAME) *sk) 424 { 425 int i; 426 STACK_OF(X509_NAME) *ret; 427 X509_NAME *name; 428 429 ret = sk_X509_NAME_new_null(); 430 for (i = 0; i < sk_X509_NAME_num(sk); i++) { 431 name = X509_NAME_dup(sk_X509_NAME_value(sk, i)); 432 if ((name == NULL) || !sk_X509_NAME_push(ret, name)) { 433 sk_X509_NAME_pop_free(ret, X509_NAME_free); 434 return (NULL); 435 } 436 } 437 return (ret); 438 } 439 440 void 441 SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list) 442 { 443 set_client_CA_list(&(s->internal->client_CA), name_list); 444 } 445 446 void 447 SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list) 448 { 449 set_client_CA_list(&(ctx->internal->client_CA), name_list); 450 } 451 452 STACK_OF(X509_NAME) * 453 SSL_CTX_get_client_CA_list(const SSL_CTX *ctx) 454 { 455 return (ctx->internal->client_CA); 456 } 457 458 STACK_OF(X509_NAME) * 459 SSL_get_client_CA_list(const SSL *s) 460 { 461 if (s->internal->type == SSL_ST_CONNECT) { 462 /* We are in the client. */ 463 if (((s->version >> 8) == SSL3_VERSION_MAJOR) && 464 (s->s3 != NULL)) 465 return (S3I(s)->tmp.ca_names); 466 else 467 return (NULL); 468 } else { 469 if (s->internal->client_CA != NULL) 470 return (s->internal->client_CA); 471 else 472 return (s->ctx->internal->client_CA); 473 } 474 } 475 476 static int 477 add_client_CA(STACK_OF(X509_NAME) **sk, X509 *x) 478 { 479 X509_NAME *name; 480 481 if (x == NULL) 482 return (0); 483 if ((*sk == NULL) && ((*sk = sk_X509_NAME_new_null()) == NULL)) 484 return (0); 485 486 if ((name = X509_NAME_dup(X509_get_subject_name(x))) == NULL) 487 return (0); 488 489 if (!sk_X509_NAME_push(*sk, name)) { 490 X509_NAME_free(name); 491 return (0); 492 } 493 return (1); 494 } 495 496 int 497 SSL_add_client_CA(SSL *ssl, X509 *x) 498 { 499 return (add_client_CA(&(ssl->internal->client_CA), x)); 500 } 501 502 int 503 SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x) 504 { 505 return (add_client_CA(&(ctx->internal->client_CA), x)); 506 } 507 508 static int 509 xname_cmp(const X509_NAME * const *a, const X509_NAME * const *b) 510 { 511 return (X509_NAME_cmp(*a, *b)); 512 } 513 514 /*! 515 * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed; 516 * it doesn't really have anything to do with clients (except that a common use 517 * for a stack of CAs is to send it to the client). Actually, it doesn't have 518 * much to do with CAs, either, since it will load any old cert. 519 * \param file the file containing one or more certs. 520 * \return a ::STACK containing the certs. 521 */ 522 STACK_OF(X509_NAME) * 523 SSL_load_client_CA_file(const char *file) 524 { 525 BIO *in; 526 X509 *x = NULL; 527 X509_NAME *xn = NULL; 528 STACK_OF(X509_NAME) *ret = NULL, *sk; 529 530 sk = sk_X509_NAME_new(xname_cmp); 531 532 in = BIO_new(BIO_s_file_internal()); 533 534 if ((sk == NULL) || (in == NULL)) { 535 SSLerrorx(ERR_R_MALLOC_FAILURE); 536 goto err; 537 } 538 539 if (!BIO_read_filename(in, file)) 540 goto err; 541 542 for (;;) { 543 if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) 544 break; 545 if (ret == NULL) { 546 ret = sk_X509_NAME_new_null(); 547 if (ret == NULL) { 548 SSLerrorx(ERR_R_MALLOC_FAILURE); 549 goto err; 550 } 551 } 552 if ((xn = X509_get_subject_name(x)) == NULL) goto err; 553 /* check for duplicates */ 554 xn = X509_NAME_dup(xn); 555 if (xn == NULL) 556 goto err; 557 if (sk_X509_NAME_find(sk, xn) >= 0) 558 X509_NAME_free(xn); 559 else { 560 sk_X509_NAME_push(sk, xn); 561 sk_X509_NAME_push(ret, xn); 562 } 563 } 564 565 if (0) { 566 err: 567 sk_X509_NAME_pop_free(ret, X509_NAME_free); 568 ret = NULL; 569 } 570 sk_X509_NAME_free(sk); 571 BIO_free(in); 572 X509_free(x); 573 if (ret != NULL) 574 ERR_clear_error(); 575 576 return (ret); 577 } 578 579 /*! 580 * Add a file of certs to a stack. 581 * \param stack the stack to add to. 582 * \param file the file to add from. All certs in this file that are not 583 * already in the stack will be added. 584 * \return 1 for success, 0 for failure. Note that in the case of failure some 585 * certs may have been added to \c stack. 586 */ 587 588 int 589 SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, 590 const char *file) 591 { 592 BIO *in; 593 X509 *x = NULL; 594 X509_NAME *xn = NULL; 595 int ret = 1; 596 int (*oldcmp)(const X509_NAME * const *a, const X509_NAME * const *b); 597 598 oldcmp = sk_X509_NAME_set_cmp_func(stack, xname_cmp); 599 600 in = BIO_new(BIO_s_file_internal()); 601 602 if (in == NULL) { 603 SSLerrorx(ERR_R_MALLOC_FAILURE); 604 goto err; 605 } 606 607 if (!BIO_read_filename(in, file)) 608 goto err; 609 610 for (;;) { 611 if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) 612 break; 613 if ((xn = X509_get_subject_name(x)) == NULL) goto err; 614 xn = X509_NAME_dup(xn); 615 if (xn == NULL) 616 goto err; 617 if (sk_X509_NAME_find(stack, xn) >= 0) 618 X509_NAME_free(xn); 619 else 620 sk_X509_NAME_push(stack, xn); 621 } 622 623 ERR_clear_error(); 624 625 if (0) { 626 err: 627 ret = 0; 628 } 629 BIO_free(in); 630 X509_free(x); 631 632 (void)sk_X509_NAME_set_cmp_func(stack, oldcmp); 633 634 return ret; 635 } 636 637 /*! 638 * Add a directory of certs to a stack. 639 * \param stack the stack to append to. 640 * \param dir the directory to append from. All files in this directory will be 641 * examined as potential certs. Any that are acceptable to 642 * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will 643 * be included. 644 * \return 1 for success, 0 for failure. Note that in the case of failure some 645 * certs may have been added to \c stack. 646 */ 647 648 int 649 SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, const char *dir) 650 { 651 DIR *dirp = NULL; 652 char *path = NULL; 653 int ret = 0; 654 655 dirp = opendir(dir); 656 if (dirp) { 657 struct dirent *dp; 658 while ((dp = readdir(dirp)) != NULL) { 659 if (asprintf(&path, "%s/%s", dir, dp->d_name) != -1) { 660 ret = SSL_add_file_cert_subjects_to_stack( 661 stack, path); 662 free(path); 663 } 664 if (!ret) 665 break; 666 } 667 (void) closedir(dirp); 668 } 669 if (!ret) { 670 SYSerror(errno); 671 ERR_asprintf_error_data("opendir ('%s')", dir); 672 SSLerrorx(ERR_R_SYS_LIB); 673 } 674 return ret; 675 } 676