cryptlib.c revision 167613
1/* crypto/cryptlib.c */ 2/* ==================================================================== 3 * Copyright (c) 1998-2003 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 "cryptlib.h" 118#include <openssl/safestack.h> 119 120#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) 121static double SSLeay_MSVC5_hack=0.0; /* and for VC1.5 */ 122#endif 123 124DECLARE_STACK_OF(CRYPTO_dynlock) 125IMPLEMENT_STACK_OF(CRYPTO_dynlock) 126 127/* real #defines in crypto.h, keep these upto date */ 128static const char* const lock_names[CRYPTO_NUM_LOCKS] = 129 { 130 "<<ERROR>>", 131 "err", 132 "ex_data", 133 "x509", 134 "x509_info", 135 "x509_pkey", 136 "x509_crl", 137 "x509_req", 138 "dsa", 139 "rsa", 140 "evp_pkey", 141 "x509_store", 142 "ssl_ctx", 143 "ssl_cert", 144 "ssl_session", 145 "ssl_sess_cert", 146 "ssl", 147 "ssl_method", 148 "rand", 149 "rand2", 150 "debug_malloc", 151 "BIO", 152 "gethostbyname", 153 "getservbyname", 154 "readdir", 155 "RSA_blinding", 156 "dh", 157 "debug_malloc2", 158 "dso", 159 "dynlock", 160 "engine", 161 "ui", 162 "ecdsa", 163 "ec", 164 "ecdh", 165 "bn", 166 "ec_pre_comp", 167 "store", 168 "comp", 169#if CRYPTO_NUM_LOCKS != 39 170# error "Inconsistency between crypto.h and cryptlib.c" 171#endif 172 }; 173 174/* This is for applications to allocate new type names in the non-dynamic 175 array of lock names. These are numbered with positive numbers. */ 176static STACK *app_locks=NULL; 177 178/* For applications that want a more dynamic way of handling threads, the 179 following stack is used. These are externally numbered with negative 180 numbers. */ 181static STACK_OF(CRYPTO_dynlock) *dyn_locks=NULL; 182 183 184static void (MS_FAR *locking_callback)(int mode,int type, 185 const char *file,int line)=NULL; 186static int (MS_FAR *add_lock_callback)(int *pointer,int amount, 187 int type,const char *file,int line)=NULL; 188static unsigned long (MS_FAR *id_callback)(void)=NULL; 189static struct CRYPTO_dynlock_value *(MS_FAR *dynlock_create_callback) 190 (const char *file,int line)=NULL; 191static void (MS_FAR *dynlock_lock_callback)(int mode, 192 struct CRYPTO_dynlock_value *l, const char *file,int line)=NULL; 193static void (MS_FAR *dynlock_destroy_callback)(struct CRYPTO_dynlock_value *l, 194 const char *file,int line)=NULL; 195 196int CRYPTO_get_new_lockid(char *name) 197 { 198 char *str; 199 int i; 200 201#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) 202 /* A hack to make Visual C++ 5.0 work correctly when linking as 203 * a DLL using /MT. Without this, the application cannot use 204 * and floating point printf's. 205 * It also seems to be needed for Visual C 1.5 (win16) */ 206 SSLeay_MSVC5_hack=(double)name[0]*(double)name[1]; 207#endif 208 209 if ((app_locks == NULL) && ((app_locks=sk_new_null()) == NULL)) 210 { 211 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE); 212 return(0); 213 } 214 if ((str=BUF_strdup(name)) == NULL) 215 { 216 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE); 217 return(0); 218 } 219 i=sk_push(app_locks,str); 220 if (!i) 221 OPENSSL_free(str); 222 else 223 i+=CRYPTO_NUM_LOCKS; /* gap of one :-) */ 224 return(i); 225 } 226 227int CRYPTO_num_locks(void) 228 { 229 return CRYPTO_NUM_LOCKS; 230 } 231 232int CRYPTO_get_new_dynlockid(void) 233 { 234 int i = 0; 235 CRYPTO_dynlock *pointer = NULL; 236 237 if (dynlock_create_callback == NULL) 238 { 239 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,CRYPTO_R_NO_DYNLOCK_CREATE_CALLBACK); 240 return(0); 241 } 242 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); 243 if ((dyn_locks == NULL) 244 && ((dyn_locks=sk_CRYPTO_dynlock_new_null()) == NULL)) 245 { 246 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); 247 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE); 248 return(0); 249 } 250 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); 251 252 pointer = (CRYPTO_dynlock *)OPENSSL_malloc(sizeof(CRYPTO_dynlock)); 253 if (pointer == NULL) 254 { 255 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE); 256 return(0); 257 } 258 pointer->references = 1; 259 pointer->data = dynlock_create_callback(__FILE__,__LINE__); 260 if (pointer->data == NULL) 261 { 262 OPENSSL_free(pointer); 263 CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE); 264 return(0); 265 } 266 267 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); 268 /* First, try to find an existing empty slot */ 269 i=sk_CRYPTO_dynlock_find(dyn_locks,NULL); 270 /* If there was none, push, thereby creating a new one */ 271 if (i == -1) 272 /* Since sk_push() returns the number of items on the 273 stack, not the location of the pushed item, we need 274 to transform the returned number into a position, 275 by decreasing it. */ 276 i=sk_CRYPTO_dynlock_push(dyn_locks,pointer) - 1; 277 else 278 /* If we found a place with a NULL pointer, put our pointer 279 in it. */ 280 sk_CRYPTO_dynlock_set(dyn_locks,i,pointer); 281 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); 282 283 if (i == -1) 284 { 285 dynlock_destroy_callback(pointer->data,__FILE__,__LINE__); 286 OPENSSL_free(pointer); 287 } 288 else 289 i += 1; /* to avoid 0 */ 290 return -i; 291 } 292 293void CRYPTO_destroy_dynlockid(int i) 294 { 295 CRYPTO_dynlock *pointer = NULL; 296 if (i) 297 i = -i-1; 298 if (dynlock_destroy_callback == NULL) 299 return; 300 301 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); 302 303 if (dyn_locks == NULL || i >= sk_CRYPTO_dynlock_num(dyn_locks)) 304 { 305 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); 306 return; 307 } 308 pointer = sk_CRYPTO_dynlock_value(dyn_locks, i); 309 if (pointer != NULL) 310 { 311 --pointer->references; 312#ifdef REF_CHECK 313 if (pointer->references < 0) 314 { 315 fprintf(stderr,"CRYPTO_destroy_dynlockid, bad reference count\n"); 316 abort(); 317 } 318 else 319#endif 320 if (pointer->references <= 0) 321 { 322 sk_CRYPTO_dynlock_set(dyn_locks, i, NULL); 323 } 324 else 325 pointer = NULL; 326 } 327 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); 328 329 if (pointer) 330 { 331 dynlock_destroy_callback(pointer->data,__FILE__,__LINE__); 332 OPENSSL_free(pointer); 333 } 334 } 335 336struct CRYPTO_dynlock_value *CRYPTO_get_dynlock_value(int i) 337 { 338 CRYPTO_dynlock *pointer = NULL; 339 if (i) 340 i = -i-1; 341 342 CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); 343 344 if (dyn_locks != NULL && i < sk_CRYPTO_dynlock_num(dyn_locks)) 345 pointer = sk_CRYPTO_dynlock_value(dyn_locks, i); 346 if (pointer) 347 pointer->references++; 348 349 CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); 350 351 if (pointer) 352 return pointer->data; 353 return NULL; 354 } 355 356struct CRYPTO_dynlock_value *(*CRYPTO_get_dynlock_create_callback(void)) 357 (const char *file,int line) 358 { 359 return(dynlock_create_callback); 360 } 361 362void (*CRYPTO_get_dynlock_lock_callback(void))(int mode, 363 struct CRYPTO_dynlock_value *l, const char *file,int line) 364 { 365 return(dynlock_lock_callback); 366 } 367 368void (*CRYPTO_get_dynlock_destroy_callback(void)) 369 (struct CRYPTO_dynlock_value *l, const char *file,int line) 370 { 371 return(dynlock_destroy_callback); 372 } 373 374void CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value *(*func) 375 (const char *file, int line)) 376 { 377 dynlock_create_callback=func; 378 } 379 380void CRYPTO_set_dynlock_lock_callback(void (*func)(int mode, 381 struct CRYPTO_dynlock_value *l, const char *file, int line)) 382 { 383 dynlock_lock_callback=func; 384 } 385 386void CRYPTO_set_dynlock_destroy_callback(void (*func) 387 (struct CRYPTO_dynlock_value *l, const char *file, int line)) 388 { 389 dynlock_destroy_callback=func; 390 } 391 392 393void (*CRYPTO_get_locking_callback(void))(int mode,int type,const char *file, 394 int line) 395 { 396 return(locking_callback); 397 } 398 399int (*CRYPTO_get_add_lock_callback(void))(int *num,int mount,int type, 400 const char *file,int line) 401 { 402 return(add_lock_callback); 403 } 404 405void CRYPTO_set_locking_callback(void (*func)(int mode,int type, 406 const char *file,int line)) 407 { 408 locking_callback=func; 409 } 410 411void CRYPTO_set_add_lock_callback(int (*func)(int *num,int mount,int type, 412 const char *file,int line)) 413 { 414 add_lock_callback=func; 415 } 416 417unsigned long (*CRYPTO_get_id_callback(void))(void) 418 { 419 return(id_callback); 420 } 421 422void CRYPTO_set_id_callback(unsigned long (*func)(void)) 423 { 424 id_callback=func; 425 } 426 427unsigned long CRYPTO_thread_id(void) 428 { 429 unsigned long ret=0; 430 431 if (id_callback == NULL) 432 { 433#ifdef OPENSSL_SYS_WIN16 434 ret=(unsigned long)GetCurrentTask(); 435#elif defined(OPENSSL_SYS_WIN32) 436 ret=(unsigned long)GetCurrentThreadId(); 437#elif defined(GETPID_IS_MEANINGLESS) 438 ret=1L; 439#else 440 ret=(unsigned long)getpid(); 441#endif 442 } 443 else 444 ret=id_callback(); 445 return(ret); 446 } 447 448void CRYPTO_lock(int mode, int type, const char *file, int line) 449 { 450#ifdef LOCK_DEBUG 451 { 452 char *rw_text,*operation_text; 453 454 if (mode & CRYPTO_LOCK) 455 operation_text="lock "; 456 else if (mode & CRYPTO_UNLOCK) 457 operation_text="unlock"; 458 else 459 operation_text="ERROR "; 460 461 if (mode & CRYPTO_READ) 462 rw_text="r"; 463 else if (mode & CRYPTO_WRITE) 464 rw_text="w"; 465 else 466 rw_text="ERROR"; 467 468 fprintf(stderr,"lock:%08lx:(%s)%s %-18s %s:%d\n", 469 CRYPTO_thread_id(), rw_text, operation_text, 470 CRYPTO_get_lock_name(type), file, line); 471 } 472#endif 473 if (type < 0) 474 { 475 if (dynlock_lock_callback != NULL) 476 { 477 struct CRYPTO_dynlock_value *pointer 478 = CRYPTO_get_dynlock_value(type); 479 480 OPENSSL_assert(pointer != NULL); 481 482 dynlock_lock_callback(mode, pointer, file, line); 483 484 CRYPTO_destroy_dynlockid(type); 485 } 486 } 487 else 488 if (locking_callback != NULL) 489 locking_callback(mode,type,file,line); 490 } 491 492int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file, 493 int line) 494 { 495 int ret = 0; 496 497 if (add_lock_callback != NULL) 498 { 499#ifdef LOCK_DEBUG 500 int before= *pointer; 501#endif 502 503 ret=add_lock_callback(pointer,amount,type,file,line); 504#ifdef LOCK_DEBUG 505 fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n", 506 CRYPTO_thread_id(), 507 before,amount,ret, 508 CRYPTO_get_lock_name(type), 509 file,line); 510#endif 511 } 512 else 513 { 514 CRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE,type,file,line); 515 516 ret= *pointer+amount; 517#ifdef LOCK_DEBUG 518 fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n", 519 CRYPTO_thread_id(), 520 *pointer,amount,ret, 521 CRYPTO_get_lock_name(type), 522 file,line); 523#endif 524 *pointer=ret; 525 CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE,type,file,line); 526 } 527 return(ret); 528 } 529 530const char *CRYPTO_get_lock_name(int type) 531 { 532 if (type < 0) 533 return("dynamic"); 534 else if (type < CRYPTO_NUM_LOCKS) 535 return(lock_names[type]); 536 else if (type-CRYPTO_NUM_LOCKS > sk_num(app_locks)) 537 return("ERROR"); 538 else 539 return(sk_value(app_locks,type-CRYPTO_NUM_LOCKS)); 540 } 541 542#if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \ 543 defined(__INTEL__) || \ 544 defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) 545 546unsigned long OPENSSL_ia32cap_P=0; 547unsigned long *OPENSSL_ia32cap_loc(void) { return &OPENSSL_ia32cap_P; } 548 549#if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY) 550#define OPENSSL_CPUID_SETUP 551void OPENSSL_cpuid_setup(void) 552{ static int trigger=0; 553 unsigned long OPENSSL_ia32_cpuid(void); 554 char *env; 555 556 if (trigger) return; 557 558 trigger=1; 559 if ((env=getenv("OPENSSL_ia32cap"))) 560 OPENSSL_ia32cap_P = strtoul(env,NULL,0)|(1<<10); 561 else 562 OPENSSL_ia32cap_P = OPENSSL_ia32_cpuid()|(1<<10); 563 /* 564 * |(1<<10) sets a reserved bit to signal that variable 565 * was initialized already... This is to avoid interference 566 * with cpuid snippets in ELF .init segment. 567 */ 568} 569#endif 570 571#else 572unsigned long *OPENSSL_ia32cap_loc(void) { return NULL; } 573#endif 574int OPENSSL_NONPIC_relocated = 0; 575#if !defined(OPENSSL_CPUID_SETUP) 576void OPENSSL_cpuid_setup(void) {} 577#endif 578 579#if (defined(_WIN32) || defined(__CYGWIN__)) && defined(_WINDLL) 580#ifdef __CYGWIN__ 581/* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */ 582#include <windows.h> 583#endif 584 585/* All we really need to do is remove the 'error' state when a thread 586 * detaches */ 587 588BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, 589 LPVOID lpvReserved) 590 { 591 switch(fdwReason) 592 { 593 case DLL_PROCESS_ATTACH: 594 OPENSSL_cpuid_setup(); 595#if defined(_WIN32_WINNT) 596 { 597 IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *)hinstDLL; 598 IMAGE_NT_HEADERS *nt_headers; 599 600 if (dos_header->e_magic==IMAGE_DOS_SIGNATURE) 601 { 602 nt_headers = (IMAGE_NT_HEADERS *)((char *)dos_header 603 + dos_header->e_lfanew); 604 if (nt_headers->Signature==IMAGE_NT_SIGNATURE && 605 hinstDLL!=(HINSTANCE)(nt_headers->OptionalHeader.ImageBase)) 606 OPENSSL_NONPIC_relocated=1; 607 } 608 } 609#endif 610 break; 611 case DLL_THREAD_ATTACH: 612 break; 613 case DLL_THREAD_DETACH: 614 ERR_remove_state(0); 615 break; 616 case DLL_PROCESS_DETACH: 617 break; 618 } 619 return(TRUE); 620 } 621#endif 622 623#if defined(_WIN32) && !defined(__CYGWIN__) 624#include <tchar.h> 625 626#if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333 627int OPENSSL_isservice(void) 628{ HWINSTA h; 629 DWORD len; 630 WCHAR *name; 631 632 (void)GetDesktopWindow(); /* return value is ignored */ 633 634 h = GetProcessWindowStation(); 635 if (h==NULL) return -1; 636 637 if (GetUserObjectInformationW (h,UOI_NAME,NULL,0,&len) || 638 GetLastError() != ERROR_INSUFFICIENT_BUFFER) 639 return -1; 640 641 if (len>512) return -1; /* paranoia */ 642 len++,len&=~1; /* paranoia */ 643#ifdef _MSC_VER 644 name=(WCHAR *)_alloca(len+sizeof(WCHAR)); 645#else 646 name=(WCHAR *)alloca(len+sizeof(WCHAR)); 647#endif 648 if (!GetUserObjectInformationW (h,UOI_NAME,name,len,&len)) 649 return -1; 650 651 len++,len&=~1; /* paranoia */ 652 name[len/sizeof(WCHAR)]=L'\0'; /* paranoia */ 653#if 1 654 /* This doesn't cover "interactive" services [working with real 655 * WinSta0's] nor programs started non-interactively by Task 656 * Scheduler [those are working with SAWinSta]. */ 657 if (wcsstr(name,L"Service-0x")) return 1; 658#else 659 /* This covers all non-interactive programs such as services. */ 660 if (!wcsstr(name,L"WinSta0")) return 1; 661#endif 662 else return 0; 663} 664#else 665int OPENSSL_isservice(void) { return 0; } 666#endif 667 668void OPENSSL_showfatal (const char *fmta,...) 669{ va_list ap; 670 TCHAR buf[256]; 671 const TCHAR *fmt; 672#ifdef STD_ERROR_HANDLE /* what a dirty trick! */ 673 HANDLE h; 674 675 if ((h=GetStdHandle(STD_ERROR_HANDLE)) != NULL && 676 GetFileType(h)!=FILE_TYPE_UNKNOWN) 677 { /* must be console application */ 678 va_start (ap,fmta); 679 vfprintf (stderr,fmta,ap); 680 va_end (ap); 681 return; 682 } 683#endif 684 685 if (sizeof(TCHAR)==sizeof(char)) 686 fmt=(const TCHAR *)fmta; 687 else do 688 { int keepgoing; 689 size_t len_0=strlen(fmta)+1,i; 690 WCHAR *fmtw; 691 692#ifdef _MSC_VER 693 fmtw = (WCHAR *)_alloca (len_0*sizeof(WCHAR)); 694#else 695 fmtw = (WCHAR *)alloca (len_0*sizeof(WCHAR)); 696#endif 697 if (fmtw == NULL) { fmt=(const TCHAR *)L"no stack?"; break; } 698 699#ifndef OPENSSL_NO_MULTIBYTE 700 if (!MultiByteToWideChar(CP_ACP,0,fmta,len_0,fmtw,len_0)) 701#endif 702 for (i=0;i<len_0;i++) fmtw[i]=(WCHAR)fmta[i]; 703 704 for (i=0;i<len_0;i++) 705 { if (fmtw[i]==L'%') do 706 { keepgoing=0; 707 switch (fmtw[i+1]) 708 { case L'0': case L'1': case L'2': case L'3': case L'4': 709 case L'5': case L'6': case L'7': case L'8': case L'9': 710 case L'.': case L'*': 711 case L'-': i++; keepgoing=1; break; 712 case L's': fmtw[i+1]=L'S'; break; 713 case L'S': fmtw[i+1]=L's'; break; 714 case L'c': fmtw[i+1]=L'C'; break; 715 case L'C': fmtw[i+1]=L'c'; break; 716 } 717 } while (keepgoing); 718 } 719 fmt = (const TCHAR *)fmtw; 720 } while (0); 721 722 va_start (ap,fmta); 723 _vsntprintf (buf,sizeof(buf)/sizeof(TCHAR)-1,fmt,ap); 724 buf [sizeof(buf)/sizeof(TCHAR)-1] = _T('\0'); 725 va_end (ap); 726 727#if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333 728 /* this -------------v--- guards NT-specific calls */ 729 if (GetVersion() < 0x80000000 && OPENSSL_isservice()) 730 { HANDLE h = RegisterEventSource(0,_T("OPENSSL")); 731 const TCHAR *pmsg=buf; 732 ReportEvent(h,EVENTLOG_ERROR_TYPE,0,0,0,1,0,&pmsg,0); 733 DeregisterEventSource(h); 734 } 735 else 736#endif 737 MessageBox (NULL,buf,_T("OpenSSL: FATAL"),MB_OK|MB_ICONSTOP); 738} 739#else 740void OPENSSL_showfatal (const char *fmta,...) 741{ va_list ap; 742 743 va_start (ap,fmta); 744 vfprintf (stderr,fmta,ap); 745 va_end (ap); 746} 747int OPENSSL_isservice (void) { return 0; } 748#endif 749 750void OpenSSLDie(const char *file,int line,const char *assertion) 751 { 752 OPENSSL_showfatal( 753 "%s(%d): OpenSSL internal error, assertion failed: %s\n", 754 file,line,assertion); 755 abort(); 756 } 757 758void *OPENSSL_stderr(void) { return stderr; } 759