X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fcryptlib.c;h=897b5b5bc22a551e6ad21d82a3b21b39a885e9ec;hp=4eb584c90a5855c7ca643e73889fb079b3dddb86;hb=b62a4a1c0e77233e201517e5e32d575a0f20cc05;hpb=78f792358074666983fc868603798edb058acbf5 diff --git a/crypto/cryptlib.c b/crypto/cryptlib.c index 4eb584c90a..897b5b5bc2 100644 --- a/crypto/cryptlib.c +++ b/crypto/cryptlib.c @@ -1,4 +1,57 @@ /* crypto/cryptlib.c */ +/* ==================================================================== + * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * 3. All advertising materials mentioning features or use of this + * software must display the following acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" + * + * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to + * endorse or promote products derived from this software without + * prior written permission. For written permission, please contact + * openssl-core@openssl.org. + * + * 5. Products derived from this software may not be called "OpenSSL" + * nor may "OpenSSL" appear in their names without prior written + * permission of the OpenSSL Project. + * + * 6. Redistributions of any form whatsoever must retain the following + * acknowledgment: + * "This product includes software developed by the OpenSSL Project + * for use in the OpenSSL Toolkit (http://www.openssl.org/)" + * + * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY + * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR + * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + * ==================================================================== + * + * This product includes cryptographic software written by Eric Young + * (eay@cryptsoft.com). This product includes software written by Tim + * Hudson (tjh@cryptsoft.com). + * + */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * @@ -55,437 +108,305 @@ * copied and put under another distribution licence * [including the GNU Public Licence.] */ +/* ==================================================================== + * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. + * ECDH support in OpenSSL originally developed by + * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. + */ -#include -#include #include "cryptlib.h" -#include #include #if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) static double SSLeay_MSVC5_hack=0.0; /* and for VC1.5 */ #endif -DECLARE_STACK_OF(CRYPTO_dynlock) -IMPLEMENT_STACK_OF(CRYPTO_dynlock) +#if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \ + defined(__INTEL__) || \ + defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64) -/* real #defines in crypto.h, keep these upto date */ -static const char* lock_names[CRYPTO_NUM_LOCKS] = - { - "<>", - "err", - "ex_data", - "x509", - "x509_info", - "x509_pkey", - "x509_crl", - "x509_req", - "dsa", - "rsa", - "evp_pkey", - "x509_store", - "ssl_ctx", - "ssl_cert", - "ssl_session", - "ssl_sess_cert", - "ssl", - "rand", - "rand2", - "debug_malloc", - "BIO", - "gethostbyname", - "getservbyname", - "readdir", - "RSA_blinding", - "dh", - "debug_malloc2", - "dso", - "dynlock", - "engine", - "ui", -#if CRYPTO_NUM_LOCKS != 31 -# error "Inconsistency between crypto.h and cryptlib.c" -#endif - }; - -/* This is for applications to allocate new type names in the non-dynamic - array of lock names. These are numbered with positive numbers. */ -static STACK *app_locks=NULL; - -/* For applications that want a more dynamic way of handling threads, the - following stack is used. These are externally numbered with negative - numbers. */ -static STACK_OF(CRYPTO_dynlock) *dyn_locks=NULL; - - -static void (MS_FAR *locking_callback)(int mode,int type, - const char *file,int line)=NULL; -static int (MS_FAR *add_lock_callback)(int *pointer,int amount, - int type,const char *file,int line)=NULL; -static unsigned long (MS_FAR *id_callback)(void)=NULL; -static struct CRYPTO_dynlock_value *(MS_FAR *dynlock_create_callback) - (const char *file,int line)=NULL; -static void (MS_FAR *dynlock_lock_callback)(int mode, - struct CRYPTO_dynlock_value *l, const char *file,int line)=NULL; -static void (MS_FAR *dynlock_destroy_callback)(struct CRYPTO_dynlock_value *l, - const char *file,int line)=NULL; - -int CRYPTO_get_new_lockid(char *name) - { - char *str; - int i; +extern unsigned int OPENSSL_ia32cap_P[4]; +unsigned int *OPENSSL_ia32cap_loc(void) { return OPENSSL_ia32cap_P; } -#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16) - /* A hack to make Visual C++ 5.0 work correctly when linking as - * a DLL using /MT. Without this, the application cannot use - * and floating point printf's. - * It also seems to be needed for Visual C 1.5 (win16) */ - SSLeay_MSVC5_hack=(double)name[0]*(double)name[1]; +#if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY) +#define OPENSSL_CPUID_SETUP +#if defined(_WIN32) +typedef unsigned __int64 IA32CAP; +#else +typedef unsigned long long IA32CAP; #endif - - if ((app_locks == NULL) && ((app_locks=sk_new_null()) == NULL)) - { - CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE); - return(0); - } - if ((str=BUF_strdup(name)) == NULL) - { - CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_LOCKID,ERR_R_MALLOC_FAILURE); - return(0); - } - i=sk_push(app_locks,str); - if (!i) - OPENSSL_free(str); - else - i+=CRYPTO_NUM_LOCKS; /* gap of one :-) */ - return(i); +void OPENSSL_cpuid_setup(void) +{ static int trigger=0; + IA32CAP OPENSSL_ia32_cpuid(unsigned int *); + IA32CAP vec; + char *env; + + if (trigger) return; + + trigger=1; + if ((env=getenv("OPENSSL_ia32cap"))) { + int off = (env[0]=='~')?1:0; +#if defined(_WIN32) + if (!sscanf(env+off,"%I64i",&vec)) vec = strtoul(env+off,NULL,0); +#else + if (!sscanf(env+off,"%lli",(long long *)&vec)) vec = strtoul(env+off,NULL,0); +#endif + if (off) vec = OPENSSL_ia32_cpuid(OPENSSL_ia32cap_P)&~vec; + else if (env[0]==':') vec = OPENSSL_ia32_cpuid(OPENSSL_ia32cap_P); + + OPENSSL_ia32cap_P[2] = 0; + if ((env=strchr(env,':'))) { + unsigned int vecx; + env++; + off = (env[0]=='~')?1:0; + vecx = strtoul(env+off,NULL,0); + if (off) OPENSSL_ia32cap_P[2] &= ~vecx; + else OPENSSL_ia32cap_P[2] = vecx; } + } + else + vec = OPENSSL_ia32_cpuid(OPENSSL_ia32cap_P); + + /* + * |(1<<10) sets a reserved bit to signal that variable + * was initialized already... This is to avoid interference + * with cpuid snippets in ELF .init segment. + */ + OPENSSL_ia32cap_P[0] = (unsigned int)vec|(1<<10); + OPENSSL_ia32cap_P[1] = (unsigned int)(vec>>32); +} +#else +unsigned int OPENSSL_ia32cap_P[4]; +#endif -int CRYPTO_num_locks(void) - { - return CRYPTO_NUM_LOCKS; - } +#else +unsigned int *OPENSSL_ia32cap_loc(void) { return NULL; } +#endif +int OPENSSL_NONPIC_relocated = 0; +#if !defined(OPENSSL_CPUID_SETUP) && !defined(OPENSSL_CPUID_OBJ) +void OPENSSL_cpuid_setup(void) {} +#endif -int CRYPTO_get_new_dynlockid(void) - { - int i = 0; - CRYPTO_dynlock *pointer = NULL; +#if (defined(_WIN32) || defined(__CYGWIN__)) && defined(_WINDLL) +#ifdef __CYGWIN__ +/* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */ +#include +/* this has side-effect of _WIN32 getting defined, which otherwise + * is mutually exclusive with __CYGWIN__... */ +#endif - if (dynlock_create_callback == NULL) - { - CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,CRYPTO_R_NO_DYNLOCK_CREATE_CALLBACK); - return(0); - } - CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); - if ((dyn_locks == NULL) - && ((dyn_locks=sk_CRYPTO_dynlock_new_null()) == NULL)) - { - CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); - CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE); - return(0); - } - CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); +/* All we really need to do is remove the 'error' state when a thread + * detaches */ - pointer = (CRYPTO_dynlock *)OPENSSL_malloc(sizeof(CRYPTO_dynlock)); - if (pointer == NULL) +BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, + LPVOID lpvReserved) + { + switch(fdwReason) { - CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE); - return(0); - } - pointer->references = 1; - pointer->data = dynlock_create_callback(__FILE__,__LINE__); - if (pointer->data == NULL) + case DLL_PROCESS_ATTACH: + OPENSSL_cpuid_setup(); +#if defined(_WIN32_WINNT) { - OPENSSL_free(pointer); - CRYPTOerr(CRYPTO_F_CRYPTO_GET_NEW_DYNLOCKID,ERR_R_MALLOC_FAILURE); - return(0); - } - - CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); - /* First, try to find an existing empty slot */ - i=sk_CRYPTO_dynlock_find(dyn_locks,NULL); - /* If there was none, push, thereby creating a new one */ - if (i == -1) - i=sk_CRYPTO_dynlock_push(dyn_locks,pointer); - CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); + IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *)hinstDLL; + IMAGE_NT_HEADERS *nt_headers; - if (!i) - { - dynlock_destroy_callback(pointer->data,__FILE__,__LINE__); - OPENSSL_free(pointer); - } - else - i += 1; /* to avoid 0 */ - return -i; - } - -void CRYPTO_destroy_dynlockid(int i) - { - CRYPTO_dynlock *pointer = NULL; - if (i) - i = -i-1; - if (dynlock_destroy_callback == NULL) - return; - - CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); - - if (dyn_locks == NULL || i >= sk_CRYPTO_dynlock_num(dyn_locks)) - return; - pointer = sk_CRYPTO_dynlock_value(dyn_locks, i); - if (pointer != NULL) - { - --pointer->references; -#ifdef REF_CHECK - if (pointer->references < 0) + if (dos_header->e_magic==IMAGE_DOS_SIGNATURE) { - fprintf(stderr,"CRYPTO_destroy_dynlockid, bad reference count\n"); - abort(); + nt_headers = (IMAGE_NT_HEADERS *)((char *)dos_header + + dos_header->e_lfanew); + if (nt_headers->Signature==IMAGE_NT_SIGNATURE && + hinstDLL!=(HINSTANCE)(nt_headers->OptionalHeader.ImageBase)) + OPENSSL_NONPIC_relocated=1; } - else -#endif - if (pointer->references <= 0) - { - sk_CRYPTO_dynlock_set(dyn_locks, i, NULL); - } - else - pointer = NULL; } - CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); - - if (pointer) - { - dynlock_destroy_callback(pointer->data,__FILE__,__LINE__); - OPENSSL_free(pointer); +#endif + break; + case DLL_THREAD_ATTACH: + break; + case DLL_THREAD_DETACH: + break; + case DLL_PROCESS_DETACH: + break; } + return(TRUE); } +#endif -struct CRYPTO_dynlock_value *CRYPTO_get_dynlock_value(int i) - { - CRYPTO_dynlock *pointer = NULL; - if (i) - i = -i-1; - - CRYPTO_w_lock(CRYPTO_LOCK_DYNLOCK); - - if (dyn_locks != NULL && i < sk_CRYPTO_dynlock_num(dyn_locks)) - pointer = sk_CRYPTO_dynlock_value(dyn_locks, i); - if (pointer) - pointer->references++; - - CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK); - - if (pointer) - return pointer->data; - return NULL; - } - -struct CRYPTO_dynlock_value *(*CRYPTO_get_dynlock_create_callback(void)) - (const char *file,int line) - { - return(dynlock_create_callback); - } - -void (*CRYPTO_get_dynlock_lock_callback(void))(int mode, - struct CRYPTO_dynlock_value *l, const char *file,int line) - { - return(dynlock_lock_callback); - } - -void (*CRYPTO_get_dynlock_destroy_callback(void)) - (struct CRYPTO_dynlock_value *l, const char *file,int line) - { - return(dynlock_destroy_callback); - } - -void CRYPTO_set_dynlock_create_callback(struct CRYPTO_dynlock_value *(*func) - (const char *file, int line)) - { - dynlock_create_callback=func; - } - -void CRYPTO_set_dynlock_lock_callback(void (*func)(int mode, - struct CRYPTO_dynlock_value *l, const char *file, int line)) - { - dynlock_lock_callback=func; - } - -void CRYPTO_set_dynlock_destroy_callback(void (*func) - (struct CRYPTO_dynlock_value *l, const char *file, int line)) - { - dynlock_destroy_callback=func; - } - - -void (*CRYPTO_get_locking_callback(void))(int mode,int type,const char *file, - int line) - { - return(locking_callback); - } - -int (*CRYPTO_get_add_lock_callback(void))(int *num,int mount,int type, - const char *file,int line) - { - return(add_lock_callback); - } - -void CRYPTO_set_locking_callback(void (*func)(int mode,int type, - const char *file,int line)) - { - locking_callback=func; - } - -void CRYPTO_set_add_lock_callback(int (*func)(int *num,int mount,int type, - const char *file,int line)) - { - add_lock_callback=func; - } - -unsigned long (*CRYPTO_get_id_callback(void))(void) - { - return(id_callback); - } - -void CRYPTO_set_id_callback(unsigned long (*func)(void)) - { - id_callback=func; - } - -unsigned long CRYPTO_thread_id(void) - { - unsigned long ret=0; +#if defined(_WIN32) && !defined(__CYGWIN__) +#include +#include +#ifdef __WATCOMC__ +#if defined(_UNICODE) || defined(__UNICODE__) +#define _vsntprintf _vsnwprintf +#else +#define _vsntprintf _vsnprintf +#endif +#endif +#ifdef _MSC_VER +#define alloca _alloca +#endif - if (id_callback == NULL) - { -#ifdef OPENSSL_SYS_WIN16 - ret=(unsigned long)GetCurrentTask(); -#elif defined(OPENSSL_SYS_WIN32) - ret=(unsigned long)GetCurrentThreadId(); -#elif defined(GETPID_IS_MEANINGLESS) - ret=1L; +#if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333 +int OPENSSL_isservice(void) +{ HWINSTA h; + DWORD len; + WCHAR *name; + static union { void *p; int (*f)(void); } _OPENSSL_isservice = { NULL }; + + if (_OPENSSL_isservice.p == NULL) { + HANDLE h = GetModuleHandle(NULL); + if (h != NULL) + _OPENSSL_isservice.p = GetProcAddress(h,"_OPENSSL_isservice"); + if (_OPENSSL_isservice.p == NULL) + _OPENSSL_isservice.p = (void *)-1; + } + + if (_OPENSSL_isservice.p != (void *)-1) + return (*_OPENSSL_isservice.f)(); + + (void)GetDesktopWindow(); /* return value is ignored */ + + h = GetProcessWindowStation(); + if (h==NULL) return -1; + + if (GetUserObjectInformationW (h,UOI_NAME,NULL,0,&len) || + GetLastError() != ERROR_INSUFFICIENT_BUFFER) + return -1; + + if (len>512) return -1; /* paranoia */ + len++,len&=~1; /* paranoia */ + name=(WCHAR *)alloca(len+sizeof(WCHAR)); + if (!GetUserObjectInformationW (h,UOI_NAME,name,len,&len)) + return -1; + + len++,len&=~1; /* paranoia */ + name[len/sizeof(WCHAR)]=L'\0'; /* paranoia */ +#if 1 + /* This doesn't cover "interactive" services [working with real + * WinSta0's] nor programs started non-interactively by Task + * Scheduler [those are working with SAWinSta]. */ + if (wcsstr(name,L"Service-0x")) return 1; #else - ret=(unsigned long)getpid(); + /* This covers all non-interactive programs such as services. */ + if (!wcsstr(name,L"WinSta0")) return 1; +#endif + else return 0; +} +#else +int OPENSSL_isservice(void) { return 0; } #endif - } - else - ret=id_callback(); - return(ret); - } -void CRYPTO_lock(int mode, int type, const char *file, int line) - { -#ifdef LOCK_DEBUG - { - char *rw_text,*operation_text; - - if (mode & CRYPTO_LOCK) - operation_text="lock "; - else if (mode & CRYPTO_UNLOCK) - operation_text="unlock"; - else - operation_text="ERROR "; - - if (mode & CRYPTO_READ) - rw_text="r"; - else if (mode & CRYPTO_WRITE) - rw_text="w"; - else - rw_text="ERROR"; - - fprintf(stderr,"lock:%08lx:(%s)%s %-18s %s:%d\n", - CRYPTO_thread_id(), rw_text, operation_text, - CRYPTO_get_lock_name(type), file, line); - } +void OPENSSL_showfatal (const char *fmta,...) +{ va_list ap; + TCHAR buf[256]; + const TCHAR *fmt; +#ifdef STD_ERROR_HANDLE /* what a dirty trick! */ + HANDLE h; + + if ((h=GetStdHandle(STD_ERROR_HANDLE)) != NULL && + GetFileType(h)!=FILE_TYPE_UNKNOWN) + { /* must be console application */ + int len; + DWORD out; + + va_start (ap,fmta); + len=_vsnprintf((char *)buf,sizeof(buf),fmta,ap); + WriteFile(h,buf,len<0?sizeof(buf):(DWORD)len,&out,NULL); + va_end (ap); + return; + } #endif - if (type < 0) - { - struct CRYPTO_dynlock_value *pointer - = CRYPTO_get_dynlock_value(type); - if (pointer && dynlock_lock_callback) - { - dynlock_lock_callback(mode, pointer, file, line); - } + if (sizeof(TCHAR)==sizeof(char)) + fmt=(const TCHAR *)fmta; + else do + { int keepgoing; + size_t len_0=strlen(fmta)+1,i; + WCHAR *fmtw; + + fmtw = (WCHAR *)alloca(len_0*sizeof(WCHAR)); + if (fmtw == NULL) { fmt=(const TCHAR *)L"no stack?"; break; } - CRYPTO_destroy_dynlockid(type); +#ifndef OPENSSL_NO_MULTIBYTE + if (!MultiByteToWideChar(CP_ACP,0,fmta,len_0,fmtw,len_0)) +#endif + for (i=0;i=0x0333 + /* this -------------v--- guards NT-specific calls */ + if (check_winnt() && OPENSSL_isservice() > 0) + { HANDLE h = RegisterEventSource(0,_T("OPENSSL")); + const TCHAR *pmsg=buf; + ReportEvent(h,EVENTLOG_ERROR_TYPE,0,0,0,1,0,&pmsg,0); + DeregisterEventSource(h); + } + else +#endif + MessageBox (NULL,buf,_T("OpenSSL: FATAL"),MB_OK|MB_ICONSTOP); +} +#else +void OPENSSL_showfatal (const char *fmta,...) +{ va_list ap; + + va_start (ap,fmta); + vfprintf (stderr,fmta,ap); + va_end (ap); +} +int OPENSSL_isservice (void) { return 0; } #endif - ret=add_lock_callback(pointer,amount,type,file,line); -#ifdef LOCK_DEBUG - fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n", - CRYPTO_thread_id(), - before,amount,ret, - CRYPTO_get_lock_name(type), - file,line); +void OpenSSLDie(const char *file,int line,const char *assertion) + { + OPENSSL_showfatal( + "%s(%d): OpenSSL internal error, assertion failed: %s\n", + file,line,assertion); +#if !defined(_WIN32) || defined(__CYGWIN__) + abort(); +#else + /* Win32 abort() customarily shows a dialog, but we just did that... */ +#if !defined(_WIN32_WCE) + raise(SIGABRT); #endif - } - else - { - CRYPTO_lock(CRYPTO_LOCK|CRYPTO_WRITE,type,file,line); - - ret= *pointer+amount; -#ifdef LOCK_DEBUG - fprintf(stderr,"ladd:%08lx:%2d+%2d->%2d %-18s %s:%d\n", - CRYPTO_thread_id(), - *pointer,amount,ret, - CRYPTO_get_lock_name(type), - file,line); + _exit(3); #endif - *pointer=ret; - CRYPTO_lock(CRYPTO_UNLOCK|CRYPTO_WRITE,type,file,line); - } - return(ret); } -const char *CRYPTO_get_lock_name(int type) - { - if (type < 0) - return("dynamic"); - else if (type < CRYPTO_NUM_LOCKS) - return(lock_names[type]); - else if (type-CRYPTO_NUM_LOCKS >= sk_num(app_locks)) - return("ERROR"); - else - return(sk_value(app_locks,type-CRYPTO_NUM_LOCKS)); - } +#ifndef OPENSSL_FIPSCANISTER +void *OPENSSL_stderr(void) { return stderr; } +#endif -#ifdef _DLL -#ifdef OPENSSL_SYS_WIN32 +int CRYPTO_memcmp(const void *in_a, const void *in_b, size_t len) + { + size_t i; + const unsigned char *a = in_a; + const unsigned char *b = in_b; + unsigned char x = 0; -/* All we really need to do is remove the 'error' state when a thread - * detaches */ + for (i = 0; i < len; i++) + x |= a[i] ^ b[i]; -BOOL WINAPI DLLEntryPoint(HINSTANCE hinstDLL, DWORD fdwReason, - LPVOID lpvReserved) - { - switch(fdwReason) - { - case DLL_PROCESS_ATTACH: - break; - case DLL_THREAD_ATTACH: - break; - case DLL_THREAD_DETACH: - ERR_remove_state(0); - break; - case DLL_PROCESS_DETACH: - break; - } - return(TRUE); + return x; } -#endif - -#endif