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diff --git a/src/lib/libcrypto/cryptlib.c b/src/lib/libcrypto/cryptlib.c
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1/* $OpenBSD: cryptlib.c,v 1.34 2015/01/22 03:56:27 bcook Exp $ */
2/* ====================================================================
3 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
15 * distribution.
16 *
17 * 3. All advertising materials mentioning features or use of this
18 * software must display the following acknowledgment:
19 * "This product includes software developed by the OpenSSL Project
20 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
21 *
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 * endorse or promote products derived from this software without
24 * prior written permission. For written permission, please contact
25 * openssl-core@openssl.org.
26 *
27 * 5. Products derived from this software may not be called "OpenSSL"
28 * nor may "OpenSSL" appear in their names without prior written
29 * permission of the OpenSSL Project.
30 *
31 * 6. Redistributions of any form whatsoever must retain the following
32 * acknowledgment:
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
35 *
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 * OF THE POSSIBILITY OF SUCH DAMAGE.
48 * ====================================================================
49 *
50 * This product includes cryptographic software written by Eric Young
51 * (eay@cryptsoft.com). This product includes software written by Tim
52 * Hudson (tjh@cryptsoft.com).
53 *
54 */
55/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
56 * All rights reserved.
57 *
58 * This package is an SSL implementation written
59 * by Eric Young (eay@cryptsoft.com).
60 * The implementation was written so as to conform with Netscapes SSL.
61 *
62 * This library is free for commercial and non-commercial use as long as
63 * the following conditions are aheared to. The following conditions
64 * apply to all code found in this distribution, be it the RC4, RSA,
65 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
66 * included with this distribution is covered by the same copyright terms
67 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
68 *
69 * Copyright remains Eric Young's, and as such any Copyright notices in
70 * the code are not to be removed.
71 * If this package is used in a product, Eric Young should be given attribution
72 * as the author of the parts of the library used.
73 * This can be in the form of a textual message at program startup or
74 * in documentation (online or textual) provided with the package.
75 *
76 * Redistribution and use in source and binary forms, with or without
77 * modification, are permitted provided that the following conditions
78 * are met:
79 * 1. Redistributions of source code must retain the copyright
80 * notice, this list of conditions and the following disclaimer.
81 * 2. Redistributions in binary form must reproduce the above copyright
82 * notice, this list of conditions and the following disclaimer in the
83 * documentation and/or other materials provided with the distribution.
84 * 3. All advertising materials mentioning features or use of this software
85 * must display the following acknowledgement:
86 * "This product includes cryptographic software written by
87 * Eric Young (eay@cryptsoft.com)"
88 * The word 'cryptographic' can be left out if the rouines from the library
89 * being used are not cryptographic related :-).
90 * 4. If you include any Windows specific code (or a derivative thereof) from
91 * the apps directory (application code) you must include an acknowledgement:
92 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
93 *
94 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
95 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
97 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
98 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
99 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
100 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
101 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
102 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
103 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
104 * SUCH DAMAGE.
105 *
106 * The licence and distribution terms for any publically available version or
107 * derivative of this code cannot be changed. i.e. this code cannot simply be
108 * copied and put under another distribution licence
109 * [including the GNU Public Licence.]
110 */
111/* ====================================================================
112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
113 * ECDH support in OpenSSL originally developed by
114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
115 */
116
117#include <stdarg.h>
118#include <string.h>
119#include <unistd.h>
120
121#include <openssl/opensslconf.h>
122
123#include <openssl/crypto.h>
124#include <openssl/buffer.h>
125#include <openssl/err.h>
126#include <openssl/safestack.h>
127#include <openssl/sha.h>
128
129DECLARE_STACK_OF(CRYPTO_dynlock)
130
131/* real #defines in crypto.h, keep these upto date */
132static const char* const lock_names[CRYPTO_NUM_LOCKS] = {
133 "<<ERROR>>",
134 "err",
135 "ex_data",
136 "x509",
137 "x509_info",
138 "x509_pkey",
139 "x509_crl",
140 "x509_req",
141 "dsa",
142 "rsa",
143 "evp_pkey",
144 "x509_store",
145 "ssl_ctx",
146 "ssl_cert",
147 "ssl_session",
148 "ssl_sess_cert",
149 "ssl",
150 "ssl_method",
151 "rand",
152 "rand2",
153 "debug_malloc",
154 "BIO",
155 "gethostbyname",
156 "getservbyname",
157 "readdir",
158 "RSA_blinding",
159 "dh",
160 "debug_malloc2",
161 "dso",
162 "dynlock",
163 "engine",
164 "ui",
165 "ecdsa",
166 "ec",
167 "ecdh",
168 "bn",
169 "ec_pre_comp",
170 "store",
171 "comp",
172 "fips",
173 "fips2",
174#if CRYPTO_NUM_LOCKS != 41
175# error "Inconsistency between crypto.h and cryptlib.c"
176#endif
177};
178
179/* This is for applications to allocate new type names in the non-dynamic
180 array of lock names. These are numbered with positive numbers. */
181static STACK_OF(OPENSSL_STRING) *app_locks = NULL;
182
183/* For applications that want a more dynamic way of handling threads, the
184 following stack is used. These are externally numbered with negative
185 numbers. */
186static STACK_OF(CRYPTO_dynlock) *dyn_locks = NULL;
187
188static void (*locking_callback)(int mode, int type,
189 const char *file, int line) = 0;
190static int (*add_lock_callback)(int *pointer, int amount,
191 int type, const char *file, int line) = 0;
192#ifndef OPENSSL_NO_DEPRECATED
193static unsigned long (*id_callback)(void) = 0;
194#endif
195static void (*threadid_callback)(CRYPTO_THREADID *) = 0;
196static struct CRYPTO_dynlock_value *(*dynlock_create_callback)(
197 const char *file, int line) = 0;
198static void (*dynlock_lock_callback)(int mode,
199 struct CRYPTO_dynlock_value *l, const char *file, int line) = 0;
200static void (*dynlock_destroy_callback)(struct CRYPTO_dynlock_value *l,
201 const char *file, int line) = 0;
202
203int
204CRYPTO_get_new_lockid(char *name)
205{
206 char *str;
207 int i;
208
209 if ((app_locks == NULL) &&
210 ((app_locks = sk_OPENSSL_STRING_new_null()) == NULL)) {
211 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID, ERR_R_MALLOC_FAILURE);
212 return (0);
213 }
214 if (name == NULL || (str = strdup(name)) == NULL) {
215 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID, ERR_R_MALLOC_FAILURE);
216 return (0);
217 }
218 i = sk_OPENSSL_STRING_push(app_locks, str);
219 if (!i)
220 free(str);
221 else
222 i += CRYPTO_NUM_LOCKS; /* gap of one :-) */
223 return (i);
224}
225
226int
227CRYPTO_num_locks(void)
228{
229 return CRYPTO_NUM_LOCKS;
230}
231
232int
233CRYPTO_get_new_dynlockid(void)
234{
235 int i = 0;
236 CRYPTO_dynlock *pointer = NULL;
237
238 if (dynlock_create_callback == NULL) {
239 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,
240 CRYPTO_R_NO_DYNLOCK_CREATE_CALLBACK);
241 return (0);
242 }
243 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
244 if ((dyn_locks == NULL) &&
245 ((dyn_locks = sk_CRYPTO_dynlock_new_null()) == NULL)) {
246 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
247 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,
248 ERR_R_MALLOC_FAILURE);
249 return (0);
250 }
251 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
252
253 pointer = malloc(sizeof(CRYPTO_dynlock));
254 if (pointer == NULL) {
255 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,
256 ERR_R_MALLOC_FAILURE);
257 return (0);
258 }
259 pointer->references = 1;
260 pointer->data = dynlock_create_callback(__FILE__, __LINE__);
261 if (pointer->data == NULL) {
262 free(pointer);
263 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,
264 ERR_R_MALLOC_FAILURE);
265 return (0);
266 }
267
268 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
269 /* First, try to find an existing empty slot */
270 i = sk_CRYPTO_dynlock_find(dyn_locks, NULL);
271 /* If there was none, push, thereby creating a new one */
272 if (i == -1)
273 /* Since sk_push() returns the number of items on the
274 stack, not the location of the pushed item, we need
275 to transform the returned number into a position,
276 by decreasing it. */
277 i = sk_CRYPTO_dynlock_push(dyn_locks, pointer) - 1;
278 else
279 /* If we found a place with a NULL pointer, put our pointer
280 in it. */
281 (void)sk_CRYPTO_dynlock_set(dyn_locks, i, pointer);
282 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
283
284 if (i == -1) {
285 dynlock_destroy_callback(pointer->data, __FILE__, __LINE__);
286 free(pointer);
287 } else
288 i += 1; /* to avoid 0 */
289 return -i;
290}
291
292void
293CRYPTO_destroy_dynlockid(int i)
294{
295 CRYPTO_dynlock *pointer = NULL;
296
297 if (i)
298 i = -i - 1;
299 if (dynlock_destroy_callback == NULL)
300 return;
301
302 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
303
304 if (dyn_locks == NULL || i >= sk_CRYPTO_dynlock_num(dyn_locks)) {
305 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
306 return;
307 }
308 pointer = sk_CRYPTO_dynlock_value(dyn_locks, i);
309 if (pointer != NULL) {
310 --pointer->references;
311 if (pointer->references <= 0) {
312 (void)sk_CRYPTO_dynlock_set(dyn_locks, i, NULL);
313 } else
314 pointer = NULL;
315 }
316 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
317
318 if (pointer) {
319 dynlock_destroy_callback(pointer->data, __FILE__, __LINE__);
320 free(pointer);
321 }
322}
323
324struct CRYPTO_dynlock_value *
325CRYPTO_get_dynlock_value(int i)
326{
327 CRYPTO_dynlock *pointer = NULL;
328
329 if (i)
330 i = -i - 1;
331
332 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
333
334 if (dyn_locks != NULL && i < sk_CRYPTO_dynlock_num(dyn_locks))
335 pointer = sk_CRYPTO_dynlock_value(dyn_locks, i);
336 if (pointer)
337 pointer->references++;
338
339 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
340
341 if (pointer)
342 return pointer->data;
343 return NULL;
344}
345
346struct CRYPTO_dynlock_value *
347(*CRYPTO_get_dynlock_create_callback(void))(const char *file, int line)
348{
349 return (dynlock_create_callback);
350}
351
352void
353(*CRYPTO_get_dynlock_lock_callback(void))(int mode,
354 struct CRYPTO_dynlock_value *l, const char *file, int line)
355{
356 return (dynlock_lock_callback);
357}
358
359void
360(*CRYPTO_get_dynlock_destroy_callback(void))(struct CRYPTO_dynlock_value *l,
361 const char *file, int line)
362{
363 return (dynlock_destroy_callback);
364}
365
366void
367CRYPTO_set_dynlock_create_callback(
368 struct CRYPTO_dynlock_value *(*func)(const char *file, int line))
369{
370 dynlock_create_callback = func;
371}
372
373void
374CRYPTO_set_dynlock_lock_callback(void (*func)(int mode,
375 struct CRYPTO_dynlock_value *l, const char *file, int line))
376{
377 dynlock_lock_callback = func;
378}
379
380void
381CRYPTO_set_dynlock_destroy_callback(
382 void (*func)(struct CRYPTO_dynlock_value *l, const char *file, int line))
383{
384 dynlock_destroy_callback = func;
385}
386
387void
388(*CRYPTO_get_locking_callback(void))(int mode, int type, const char *file,
389 int line)
390{
391 return (locking_callback);
392}
393
394int
395(*CRYPTO_get_add_lock_callback(void))(int *num, int mount, int type,
396 const char *file, int line)
397{
398 return (add_lock_callback);
399}
400
401void
402CRYPTO_set_locking_callback(void (*func)(int mode, int type,
403 const char *file, int line))
404{
405 /* Calling this here ensures initialisation before any threads
406 * are started.
407 */
408 OPENSSL_init();
409 locking_callback = func;
410}
411
412void
413CRYPTO_set_add_lock_callback(int (*func)(int *num, int mount, int type,
414 const char *file, int line))
415{
416 add_lock_callback = func;
417}
418
419/* the memset() here and in set_pointer() seem overkill, but for the sake of
420 * CRYPTO_THREADID_cmp() this avoids any platform silliness that might cause two
421 * "equal" THREADID structs to not be memcmp()-identical. */
422void
423CRYPTO_THREADID_set_numeric(CRYPTO_THREADID *id, unsigned long val)
424{
425 memset(id, 0, sizeof(*id));
426 id->val = val;
427}
428
429void
430CRYPTO_THREADID_set_pointer(CRYPTO_THREADID *id, void *ptr)
431{
432 memset(id, 0, sizeof(*id));
433 id->ptr = ptr;
434#if LONG_MAX >= INTPTR_MAX
435 /*s u 'ptr' can be embedded in 'val' without loss of uniqueness */
436 id->val = (unsigned long)id->ptr;
437#else
438 {
439 SHA256_CTX ctx;
440 uint8_t results[SHA256_DIGEST_LENGTH];
441
442 SHA256_Init(&ctx);
443 SHA256_Update(&ctx, (char *)(&id->ptr), sizeof(id->ptr));
444 SHA256_Final(results, &ctx);
445 memcpy(&id->val, results, sizeof(id->val));
446 }
447#endif
448}
449
450int
451CRYPTO_THREADID_set_callback(void (*func)(CRYPTO_THREADID *))
452{
453 if (threadid_callback)
454 return 0;
455 threadid_callback = func;
456 return 1;
457}
458
459void (*CRYPTO_THREADID_get_callback(void))(CRYPTO_THREADID *)
460{
461 return threadid_callback;
462}
463
464void
465CRYPTO_THREADID_current(CRYPTO_THREADID *id)
466{
467 if (threadid_callback) {
468 threadid_callback(id);
469 return;
470 }
471#ifndef OPENSSL_NO_DEPRECATED
472 /* If the deprecated callback was set, fall back to that */
473 if (id_callback) {
474 CRYPTO_THREADID_set_numeric(id, id_callback());
475 return;
476 }
477#endif
478 /* Else pick a backup */
479 /* For everything else, default to using the address of 'errno' */
480 CRYPTO_THREADID_set_pointer(id, (void*)&errno);
481}
482
483int
484CRYPTO_THREADID_cmp(const CRYPTO_THREADID *a, const CRYPTO_THREADID *b)
485{
486 return memcmp(a, b, sizeof(*a));
487}
488
489void
490CRYPTO_THREADID_cpy(CRYPTO_THREADID *dest, const CRYPTO_THREADID *src)
491{
492 memcpy(dest, src, sizeof(*src));
493}
494
495unsigned long
496CRYPTO_THREADID_hash(const CRYPTO_THREADID *id)
497{
498 return id->val;
499}
500
501#ifndef OPENSSL_NO_DEPRECATED
502unsigned long (*CRYPTO_get_id_callback(void))(void)
503{
504 return (id_callback);
505}
506
507void
508CRYPTO_set_id_callback(unsigned long (*func)(void))
509{
510 id_callback = func;
511}
512
513unsigned long
514CRYPTO_thread_id(void)
515{
516 unsigned long ret = 0;
517
518 if (id_callback == NULL) {
519 ret = (unsigned long)getpid();
520 } else
521 ret = id_callback();
522 return (ret);
523}
524#endif
525
526void
527CRYPTO_lock(int mode, int type, const char *file, int line)
528{
529#ifdef LOCK_DEBUG
530 {
531 CRYPTO_THREADID id;
532 char *rw_text, *operation_text;
533
534 if (mode & CRYPTO_LOCK)
535 operation_text = "lock ";
536 else if (mode & CRYPTO_UNLOCK)
537 operation_text = "unlock";
538 else
539 operation_text = "ERROR ";
540
541 if (mode & CRYPTO_READ)
542 rw_text = "r";
543 else if (mode & CRYPTO_WRITE)
544 rw_text = "w";
545 else
546 rw_text = "ERROR";
547
548 CRYPTO_THREADID_current(&id);
549 fprintf(stderr, "lock:%08lx:(%s)%s %-18s %s:%d\n",
550 CRYPTO_THREADID_hash(&id), rw_text, operation_text,
551 CRYPTO_get_lock_name(type), file, line);
552 }
553#endif
554 if (type < 0) {
555 if (dynlock_lock_callback != NULL) {
556 struct CRYPTO_dynlock_value *pointer =
557 CRYPTO_get_dynlock_value(type);
558
559 OPENSSL_assert(pointer != NULL);
560
561 dynlock_lock_callback(mode, pointer, file, line);
562
563 CRYPTO_destroy_dynlockid(type);
564 }
565 } else if (locking_callback != NULL)
566 locking_callback(mode, type, file, line);
567}
568
569int
570CRYPTO_add_lock(int *pointer, int amount, int type, const char *file,
571 int line)
572{
573 int ret = 0;
574
575 if (add_lock_callback != NULL) {
576#ifdef LOCK_DEBUG
577 int before= *pointer;
578#endif
579
580 ret = add_lock_callback(pointer, amount, type, file, line);
581#ifdef LOCK_DEBUG
582 {
583 CRYPTO_THREADID id;
584 CRYPTO_THREADID_current(&id);
585 fprintf(stderr, "ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
586 CRYPTO_THREADID_hash(&id), before, amount, ret,
587 CRYPTO_get_lock_name(type),
588 file, line);
589 }
590#endif
591 } else {
592 CRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE, type, file, line);
593
594 ret= *pointer + amount;
595#ifdef LOCK_DEBUG
596 {
597 CRYPTO_THREADID id;
598 CRYPTO_THREADID_current(&id);
599 fprintf(stderr, "ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
600 CRYPTO_THREADID_hash(&id), *pointer, amount, ret,
601 CRYPTO_get_lock_name(type), file, line);
602 }
603#endif
604 *pointer = ret;
605 CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE, type, file, line);
606 }
607 return (ret);
608}
609
610const char *
611CRYPTO_get_lock_name(int type)
612{
613 if (type < 0)
614 return("dynamic");
615 else if (type < CRYPTO_NUM_LOCKS)
616 return (lock_names[type]);
617 else if (type - CRYPTO_NUM_LOCKS > sk_OPENSSL_STRING_num(app_locks))
618 return("ERROR");
619 else
620 return (sk_OPENSSL_STRING_value(app_locks,
621 type - CRYPTO_NUM_LOCKS));
622}
623
624#if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
625 defined(__INTEL__) || \
626 defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
627
628unsigned int OPENSSL_ia32cap_P[2];
629unsigned long *
630OPENSSL_ia32cap_loc(void)
631{
632 if (sizeof(long) == 4)
633 /*
634 * If 32-bit application pulls address of OPENSSL_ia32cap_P[0]
635 * clear second element to maintain the illusion that vector
636 * is 32-bit.
637 */
638 OPENSSL_ia32cap_P[1] = 0;
639 return (unsigned long *)OPENSSL_ia32cap_P;
640}
641
642#if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY)
643#define OPENSSL_CPUID_SETUP
644typedef unsigned long long IA32CAP;
645void
646OPENSSL_cpuid_setup(void)
647{
648 static int trigger = 0;
649 IA32CAP OPENSSL_ia32_cpuid(void);
650 IA32CAP vec;
651
652 if (trigger)
653 return;
654 trigger = 1;
655
656 vec = OPENSSL_ia32_cpuid();
657
658 /*
659 * |(1<<10) sets a reserved bit to signal that variable
660 * was initialized already... This is to avoid interference
661 * with cpuid snippets in ELF .init segment.
662 */
663 OPENSSL_ia32cap_P[0] = (unsigned int)vec | (1 << 10);
664 OPENSSL_ia32cap_P[1] = (unsigned int)(vec >> 32);
665}
666#endif
667
668#else
669unsigned long *
670OPENSSL_ia32cap_loc(void)
671{
672 return NULL;
673}
674#endif
675
676#if !defined(OPENSSL_CPUID_SETUP) && !defined(OPENSSL_CPUID_OBJ)
677void
678OPENSSL_cpuid_setup(void)
679{
680}
681#endif
682
683static void
684OPENSSL_showfatal(const char *fmta, ...)
685{
686 va_list ap;
687
688 va_start(ap, fmta);
689 vfprintf(stderr, fmta, ap);
690 va_end(ap);
691}
692
693void
694OpenSSLDie(const char *file, int line, const char *assertion)
695{
696 OPENSSL_showfatal(
697 "%s(%d): OpenSSL internal error, assertion failed: %s\n",
698 file, line, assertion);
699 abort();
700}
701
702int
703CRYPTO_memcmp(const void *in_a, const void *in_b, size_t len)
704{
705 size_t i;
706 const unsigned char *a = in_a;
707 const unsigned char *b = in_b;
708 unsigned char x = 0;
709
710 for (i = 0; i < len; i++)
711 x |= a[i] ^ b[i];
712
713 return x;
714}
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