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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 1.35 2015/06/27 22:42:02 doug 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 <limits.h>
118#include <stdarg.h>
119#include <stdint.h>
120#include <string.h>
121#include <unistd.h>
122
123#include <openssl/opensslconf.h>
124
125#include <openssl/crypto.h>
126#include <openssl/buffer.h>
127#include <openssl/err.h>
128#include <openssl/safestack.h>
129#include <openssl/sha.h>
130
131DECLARE_STACK_OF(CRYPTO_dynlock)
132
133/* real #defines in crypto.h, keep these upto date */
134static const char* const lock_names[CRYPTO_NUM_LOCKS] = {
135 "<<ERROR>>",
136 "err",
137 "ex_data",
138 "x509",
139 "x509_info",
140 "x509_pkey",
141 "x509_crl",
142 "x509_req",
143 "dsa",
144 "rsa",
145 "evp_pkey",
146 "x509_store",
147 "ssl_ctx",
148 "ssl_cert",
149 "ssl_session",
150 "ssl_sess_cert",
151 "ssl",
152 "ssl_method",
153 "rand",
154 "rand2",
155 "debug_malloc",
156 "BIO",
157 "gethostbyname",
158 "getservbyname",
159 "readdir",
160 "RSA_blinding",
161 "dh",
162 "debug_malloc2",
163 "dso",
164 "dynlock",
165 "engine",
166 "ui",
167 "ecdsa",
168 "ec",
169 "ecdh",
170 "bn",
171 "ec_pre_comp",
172 "store",
173 "comp",
174 "fips",
175 "fips2",
176#if CRYPTO_NUM_LOCKS != 41
177# error "Inconsistency between crypto.h and cryptlib.c"
178#endif
179};
180
181/* This is for applications to allocate new type names in the non-dynamic
182 array of lock names. These are numbered with positive numbers. */
183static STACK_OF(OPENSSL_STRING) *app_locks = NULL;
184
185/* For applications that want a more dynamic way of handling threads, the
186 following stack is used. These are externally numbered with negative
187 numbers. */
188static STACK_OF(CRYPTO_dynlock) *dyn_locks = NULL;
189
190static void (*locking_callback)(int mode, int type,
191 const char *file, int line) = 0;
192static int (*add_lock_callback)(int *pointer, int amount,
193 int type, const char *file, int line) = 0;
194#ifndef OPENSSL_NO_DEPRECATED
195static unsigned long (*id_callback)(void) = 0;
196#endif
197static void (*threadid_callback)(CRYPTO_THREADID *) = 0;
198static struct CRYPTO_dynlock_value *(*dynlock_create_callback)(
199 const char *file, int line) = 0;
200static void (*dynlock_lock_callback)(int mode,
201 struct CRYPTO_dynlock_value *l, const char *file, int line) = 0;
202static void (*dynlock_destroy_callback)(struct CRYPTO_dynlock_value *l,
203 const char *file, int line) = 0;
204
205int
206CRYPTO_get_new_lockid(char *name)
207{
208 char *str;
209 int i;
210
211 if ((app_locks == NULL) &&
212 ((app_locks = sk_OPENSSL_STRING_new_null()) == NULL)) {
213 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID, ERR_R_MALLOC_FAILURE);
214 return (0);
215 }
216 if (name == NULL || (str = strdup(name)) == NULL) {
217 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID, ERR_R_MALLOC_FAILURE);
218 return (0);
219 }
220 i = sk_OPENSSL_STRING_push(app_locks, str);
221 if (!i)
222 free(str);
223 else
224 i += CRYPTO_NUM_LOCKS; /* gap of one :-) */
225 return (i);
226}
227
228int
229CRYPTO_num_locks(void)
230{
231 return CRYPTO_NUM_LOCKS;
232}
233
234int
235CRYPTO_get_new_dynlockid(void)
236{
237 int i = 0;
238 CRYPTO_dynlock *pointer = NULL;
239
240 if (dynlock_create_callback == NULL) {
241 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,
242 CRYPTO_R_NO_DYNLOCK_CREATE_CALLBACK);
243 return (0);
244 }
245 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
246 if ((dyn_locks == NULL) &&
247 ((dyn_locks = sk_CRYPTO_dynlock_new_null()) == NULL)) {
248 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
249 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,
250 ERR_R_MALLOC_FAILURE);
251 return (0);
252 }
253 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
254
255 pointer = malloc(sizeof(CRYPTO_dynlock));
256 if (pointer == NULL) {
257 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,
258 ERR_R_MALLOC_FAILURE);
259 return (0);
260 }
261 pointer->references = 1;
262 pointer->data = dynlock_create_callback(__FILE__, __LINE__);
263 if (pointer->data == NULL) {
264 free(pointer);
265 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,
266 ERR_R_MALLOC_FAILURE);
267 return (0);
268 }
269
270 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
271 /* First, try to find an existing empty slot */
272 i = sk_CRYPTO_dynlock_find(dyn_locks, NULL);
273 /* If there was none, push, thereby creating a new one */
274 if (i == -1)
275 /* Since sk_push() returns the number of items on the
276 stack, not the location of the pushed item, we need
277 to transform the returned number into a position,
278 by decreasing it. */
279 i = sk_CRYPTO_dynlock_push(dyn_locks, pointer) - 1;
280 else
281 /* If we found a place with a NULL pointer, put our pointer
282 in it. */
283 (void)sk_CRYPTO_dynlock_set(dyn_locks, i, pointer);
284 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
285
286 if (i == -1) {
287 dynlock_destroy_callback(pointer->data, __FILE__, __LINE__);
288 free(pointer);
289 } else
290 i += 1; /* to avoid 0 */
291 return -i;
292}
293
294void
295CRYPTO_destroy_dynlockid(int i)
296{
297 CRYPTO_dynlock *pointer = NULL;
298
299 if (i)
300 i = -i - 1;
301 if (dynlock_destroy_callback == NULL)
302 return;
303
304 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
305
306 if (dyn_locks == NULL || i >= sk_CRYPTO_dynlock_num(dyn_locks)) {
307 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
308 return;
309 }
310 pointer = sk_CRYPTO_dynlock_value(dyn_locks, i);
311 if (pointer != NULL) {
312 --pointer->references;
313 if (pointer->references <= 0) {
314 (void)sk_CRYPTO_dynlock_set(dyn_locks, i, NULL);
315 } else
316 pointer = NULL;
317 }
318 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
319
320 if (pointer) {
321 dynlock_destroy_callback(pointer->data, __FILE__, __LINE__);
322 free(pointer);
323 }
324}
325
326struct CRYPTO_dynlock_value *
327CRYPTO_get_dynlock_value(int i)
328{
329 CRYPTO_dynlock *pointer = NULL;
330
331 if (i)
332 i = -i - 1;
333
334 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK);
335
336 if (dyn_locks != NULL && i < sk_CRYPTO_dynlock_num(dyn_locks))
337 pointer = sk_CRYPTO_dynlock_value(dyn_locks, i);
338 if (pointer)
339 pointer->references++;
340
341 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
342
343 if (pointer)
344 return pointer->data;
345 return NULL;
346}
347
348struct CRYPTO_dynlock_value *
349(*CRYPTO_get_dynlock_create_callback(void))(const char *file, int line)
350{
351 return (dynlock_create_callback);
352}
353
354void
355(*CRYPTO_get_dynlock_lock_callback(void))(int mode,
356 struct CRYPTO_dynlock_value *l, const char *file, int line)
357{
358 return (dynlock_lock_callback);
359}
360
361void
362(*CRYPTO_get_dynlock_destroy_callback(void))(struct CRYPTO_dynlock_value *l,
363 const char *file, int line)
364{
365 return (dynlock_destroy_callback);
366}
367
368void
369CRYPTO_set_dynlock_create_callback(
370 struct CRYPTO_dynlock_value *(*func)(const char *file, int line))
371{
372 dynlock_create_callback = func;
373}
374
375void
376CRYPTO_set_dynlock_lock_callback(void (*func)(int mode,
377 struct CRYPTO_dynlock_value *l, const char *file, int line))
378{
379 dynlock_lock_callback = func;
380}
381
382void
383CRYPTO_set_dynlock_destroy_callback(
384 void (*func)(struct CRYPTO_dynlock_value *l, const char *file, int line))
385{
386 dynlock_destroy_callback = func;
387}
388
389void
390(*CRYPTO_get_locking_callback(void))(int mode, int type, const char *file,
391 int line)
392{
393 return (locking_callback);
394}
395
396int
397(*CRYPTO_get_add_lock_callback(void))(int *num, int mount, int type,
398 const char *file, int line)
399{
400 return (add_lock_callback);
401}
402
403void
404CRYPTO_set_locking_callback(void (*func)(int mode, int type,
405 const char *file, int line))
406{
407 /* Calling this here ensures initialisation before any threads
408 * are started.
409 */
410 OPENSSL_init();
411 locking_callback = func;
412}
413
414void
415CRYPTO_set_add_lock_callback(int (*func)(int *num, int mount, int type,
416 const char *file, int line))
417{
418 add_lock_callback = func;
419}
420
421/* the memset() here and in set_pointer() seem overkill, but for the sake of
422 * CRYPTO_THREADID_cmp() this avoids any platform silliness that might cause two
423 * "equal" THREADID structs to not be memcmp()-identical. */
424void
425CRYPTO_THREADID_set_numeric(CRYPTO_THREADID *id, unsigned long val)
426{
427 memset(id, 0, sizeof(*id));
428 id->val = val;
429}
430
431void
432CRYPTO_THREADID_set_pointer(CRYPTO_THREADID *id, void *ptr)
433{
434 memset(id, 0, sizeof(*id));
435 id->ptr = ptr;
436#if ULONG_MAX >= UINTPTR_MAX
437 /*s u 'ptr' can be embedded in 'val' without loss of uniqueness */
438 id->val = (uintptr_t)id->ptr;
439#else
440 {
441 SHA256_CTX ctx;
442 uint8_t results[SHA256_DIGEST_LENGTH];
443
444 SHA256_Init(&ctx);
445 SHA256_Update(&ctx, (char *)(&id->ptr), sizeof(id->ptr));
446 SHA256_Final(results, &ctx);
447 memcpy(&id->val, results, sizeof(id->val));
448 }
449#endif
450}
451
452int
453CRYPTO_THREADID_set_callback(void (*func)(CRYPTO_THREADID *))
454{
455 if (threadid_callback)
456 return 0;
457 threadid_callback = func;
458 return 1;
459}
460
461void (*CRYPTO_THREADID_get_callback(void))(CRYPTO_THREADID *)
462{
463 return threadid_callback;
464}
465
466void
467CRYPTO_THREADID_current(CRYPTO_THREADID *id)
468{
469 if (threadid_callback) {
470 threadid_callback(id);
471 return;
472 }
473#ifndef OPENSSL_NO_DEPRECATED
474 /* If the deprecated callback was set, fall back to that */
475 if (id_callback) {
476 CRYPTO_THREADID_set_numeric(id, id_callback());
477 return;
478 }
479#endif
480 /* Else pick a backup */
481 /* For everything else, default to using the address of 'errno' */
482 CRYPTO_THREADID_set_pointer(id, (void*)&errno);
483}
484
485int
486CRYPTO_THREADID_cmp(const CRYPTO_THREADID *a, const CRYPTO_THREADID *b)
487{
488 return memcmp(a, b, sizeof(*a));
489}
490
491void
492CRYPTO_THREADID_cpy(CRYPTO_THREADID *dest, const CRYPTO_THREADID *src)
493{
494 memcpy(dest, src, sizeof(*src));
495}
496
497unsigned long
498CRYPTO_THREADID_hash(const CRYPTO_THREADID *id)
499{
500 return id->val;
501}
502
503#ifndef OPENSSL_NO_DEPRECATED
504unsigned long (*CRYPTO_get_id_callback(void))(void)
505{
506 return (id_callback);
507}
508
509void
510CRYPTO_set_id_callback(unsigned long (*func)(void))
511{
512 id_callback = func;
513}
514
515unsigned long
516CRYPTO_thread_id(void)
517{
518 unsigned long ret = 0;
519
520 if (id_callback == NULL) {
521 ret = (unsigned long)getpid();
522 } else
523 ret = id_callback();
524 return (ret);
525}
526#endif
527
528void
529CRYPTO_lock(int mode, int type, const char *file, int line)
530{
531#ifdef LOCK_DEBUG
532 {
533 CRYPTO_THREADID id;
534 char *rw_text, *operation_text;
535
536 if (mode & CRYPTO_LOCK)
537 operation_text = "lock ";
538 else if (mode & CRYPTO_UNLOCK)
539 operation_text = "unlock";
540 else
541 operation_text = "ERROR ";
542
543 if (mode & CRYPTO_READ)
544 rw_text = "r";
545 else if (mode & CRYPTO_WRITE)
546 rw_text = "w";
547 else
548 rw_text = "ERROR";
549
550 CRYPTO_THREADID_current(&id);
551 fprintf(stderr, "lock:%08lx:(%s)%s %-18s %s:%d\n",
552 CRYPTO_THREADID_hash(&id), rw_text, operation_text,
553 CRYPTO_get_lock_name(type), file, line);
554 }
555#endif
556 if (type < 0) {
557 if (dynlock_lock_callback != NULL) {
558 struct CRYPTO_dynlock_value *pointer =
559 CRYPTO_get_dynlock_value(type);
560
561 OPENSSL_assert(pointer != NULL);
562
563 dynlock_lock_callback(mode, pointer, file, line);
564
565 CRYPTO_destroy_dynlockid(type);
566 }
567 } else if (locking_callback != NULL)
568 locking_callback(mode, type, file, line);
569}
570
571int
572CRYPTO_add_lock(int *pointer, int amount, int type, const char *file,
573 int line)
574{
575 int ret = 0;
576
577 if (add_lock_callback != NULL) {
578#ifdef LOCK_DEBUG
579 int before= *pointer;
580#endif
581
582 ret = add_lock_callback(pointer, amount, type, file, line);
583#ifdef LOCK_DEBUG
584 {
585 CRYPTO_THREADID id;
586 CRYPTO_THREADID_current(&id);
587 fprintf(stderr, "ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
588 CRYPTO_THREADID_hash(&id), before, amount, ret,
589 CRYPTO_get_lock_name(type),
590 file, line);
591 }
592#endif
593 } else {
594 CRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE, type, file, line);
595
596 ret= *pointer + amount;
597#ifdef LOCK_DEBUG
598 {
599 CRYPTO_THREADID id;
600 CRYPTO_THREADID_current(&id);
601 fprintf(stderr, "ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n",
602 CRYPTO_THREADID_hash(&id), *pointer, amount, ret,
603 CRYPTO_get_lock_name(type), file, line);
604 }
605#endif
606 *pointer = ret;
607 CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE, type, file, line);
608 }
609 return (ret);
610}
611
612const char *
613CRYPTO_get_lock_name(int type)
614{
615 if (type < 0)
616 return("dynamic");
617 else if (type < CRYPTO_NUM_LOCKS)
618 return (lock_names[type]);
619 else if (type - CRYPTO_NUM_LOCKS > sk_OPENSSL_STRING_num(app_locks))
620 return("ERROR");
621 else
622 return (sk_OPENSSL_STRING_value(app_locks,
623 type - CRYPTO_NUM_LOCKS));
624}
625
626#if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
627 defined(__INTEL__) || \
628 defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
629
630unsigned int OPENSSL_ia32cap_P[2];
631unsigned long *
632OPENSSL_ia32cap_loc(void)
633{
634 if (sizeof(long) == 4)
635 /*
636 * If 32-bit application pulls address of OPENSSL_ia32cap_P[0]
637 * clear second element to maintain the illusion that vector
638 * is 32-bit.
639 */
640 OPENSSL_ia32cap_P[1] = 0;
641 return (unsigned long *)OPENSSL_ia32cap_P;
642}
643
644#if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY)
645#define OPENSSL_CPUID_SETUP
646typedef unsigned long long IA32CAP;
647void
648OPENSSL_cpuid_setup(void)
649{
650 static int trigger = 0;
651 IA32CAP OPENSSL_ia32_cpuid(void);
652 IA32CAP vec;
653
654 if (trigger)
655 return;
656 trigger = 1;
657
658 vec = OPENSSL_ia32_cpuid();
659
660 /*
661 * |(1<<10) sets a reserved bit to signal that variable
662 * was initialized already... This is to avoid interference
663 * with cpuid snippets in ELF .init segment.
664 */
665 OPENSSL_ia32cap_P[0] = (unsigned int)vec | (1 << 10);
666 OPENSSL_ia32cap_P[1] = (unsigned int)(vec >> 32);
667}
668#endif
669
670#else
671unsigned long *
672OPENSSL_ia32cap_loc(void)
673{
674 return NULL;
675}
676#endif
677
678#if !defined(OPENSSL_CPUID_SETUP) && !defined(OPENSSL_CPUID_OBJ)
679void
680OPENSSL_cpuid_setup(void)
681{
682}
683#endif
684
685static void
686OPENSSL_showfatal(const char *fmta, ...)
687{
688 va_list ap;
689
690 va_start(ap, fmta);
691 vfprintf(stderr, fmta, ap);
692 va_end(ap);
693}
694
695void
696OpenSSLDie(const char *file, int line, const char *assertion)
697{
698 OPENSSL_showfatal(
699 "%s(%d): OpenSSL internal error, assertion failed: %s\n",
700 file, line, assertion);
701 abort();
702}
703
704int
705CRYPTO_memcmp(const void *in_a, const void *in_b, size_t len)
706{
707 size_t i;
708 const unsigned char *a = in_a;
709 const unsigned char *b = in_b;
710 unsigned char x = 0;
711
712 for (i = 0; i < len; i++)
713 x |= a[i] ^ b[i];
714
715 return x;
716}
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