perlasm/x86asm.pl: recognize elf-1 denoting old ELF platforms.
[openssl.git] / crypto / cryptlib.c
index 38e2a53..897b5b5 100644 (file)
@@ -1,6 +1,6 @@
 /* crypto/cryptlib.c */
 /* ====================================================================
- * Copyright (c) 1998-2002 The OpenSSL Project.  All rights reserved.
+ * 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
  * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
  */
 
-#include <stdio.h>
-#include <string.h>
 #include "cryptlib.h"
-#include <openssl/crypto.h>
 #include <openssl/safestack.h>
 
 #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] =
-       {
-       "<<ERROR>>",
-       "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",
-       "ssl_method",
-       "rand",
-       "rand2",
-       "debug_malloc",
-       "BIO",
-       "gethostbyname",
-       "getservbyname",
-       "readdir",
-       "RSA_blinding",
-       "dh",
-       "debug_malloc2",
-       "dso",
-       "dynlock",
-       "engine",
-       "ui",
-       "ecdsa",
-       "ec",
-       "ecdh",
-       "bn",
-#if CRYPTO_NUM_LOCKS != 36
-# 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);
-       }
-
-int CRYPTO_num_locks(void)
-       {
-       return CRYPTO_NUM_LOCKS;
-       }
-
-int CRYPTO_get_new_dynlockid(void)
-       {
-       int i = 0;
-       CRYPTO_dynlock *pointer = NULL;
-
-       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);
-
-       pointer = (CRYPTO_dynlock *)OPENSSL_malloc(sizeof(CRYPTO_dynlock));
-       if (pointer == NULL)
-               {
-               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)
-               {
-               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);
-
-       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))
-               {
-               CRYPTO_w_unlock(CRYPTO_LOCK_DYNLOCK);
-               return;
-               }
-       pointer = sk_CRYPTO_dynlock_value(dyn_locks, i);
-       if (pointer != NULL)
-               {
-               --pointer->references;
-#ifdef REF_CHECK
-               if (pointer->references < 0)
-                       {
-                       fprintf(stderr,"CRYPTO_destroy_dynlockid, bad reference count\n");
-                       abort();
-                       }
-               else
+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 (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);
-               }
-       }
-
-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);
+       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;
        }
-
-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 (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;
+    }
+    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
-               ret=(unsigned long)getpid();
+unsigned int OPENSSL_ia32cap_P[4];
 #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);
-               }
+#else
+unsigned int *OPENSSL_ia32cap_loc(void) { return NULL; }
 #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);
-                       }
-
-               CRYPTO_destroy_dynlockid(type);
-               }
-       else
-               if (locking_callback != NULL)
-                       locking_callback(mode,type,file,line);
-       }
-
-int CRYPTO_add_lock(int *pointer, int amount, int type, const char *file,
-            int line)
-       {
-       int ret = 0;
-
-       if (add_lock_callback != NULL)
-               {
-#ifdef LOCK_DEBUG
-               int before= *pointer;
+int OPENSSL_NONPIC_relocated = 0;
+#if !defined(OPENSSL_CPUID_SETUP) && !defined(OPENSSL_CPUID_OBJ)
+void OPENSSL_cpuid_setup(void) {}
 #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);
+#if (defined(_WIN32) || defined(__CYGWIN__)) && defined(_WINDLL)
+#ifdef __CYGWIN__
+/* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */
+#include <windows.h>
+/* this has side-effect of _WIN32 getting defined, which otherwise
+ * is mutually exclusive with __CYGWIN__... */
 #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);
-#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));
-       }
-
-#ifdef _DLL
-#ifdef OPENSSL_SYS_WIN32
 
 /* All we really need to do is remove the 'error' state when a thread
  * detaches */
 
-BOOL WINAPI DLLEntryPoint(HINSTANCE hinstDLL, DWORD fdwReason,
+BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
             LPVOID lpvReserved)
        {
        switch(fdwReason)
                {
        case DLL_PROCESS_ATTACH:
+               OPENSSL_cpuid_setup();
+#if defined(_WIN32_WINNT)
+               {
+               IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *)hinstDLL;
+               IMAGE_NT_HEADERS *nt_headers;
+
+               if (dos_header->e_magic==IMAGE_DOS_SIGNATURE)
+                       {
+                       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;
+                       }
+               }
+#endif
                break;
        case DLL_THREAD_ATTACH:
                break;
        case DLL_THREAD_DETACH:
-               ERR_remove_state(0);
                break;
        case DLL_PROCESS_DETACH:
                break;
@@ -554,12 +232,181 @@ BOOL WINAPI DLLEntryPoint(HINSTANCE hinstDLL, DWORD fdwReason,
        }
 #endif
 
+#if defined(_WIN32) && !defined(__CYGWIN__)
+#include <tchar.h>
+#include <signal.h>
+#ifdef __WATCOMC__
+#if defined(_UNICODE) || defined(__UNICODE__)
+#define _vsntprintf _vsnwprintf
+#else
+#define _vsntprintf _vsnprintf
+#endif
+#endif
+#ifdef _MSC_VER
+#define alloca _alloca
+#endif
+
+#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
+    /* 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
+
+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 (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; }
+
+#ifndef OPENSSL_NO_MULTIBYTE
+       if (!MultiByteToWideChar(CP_ACP,0,fmta,len_0,fmtw,len_0))
+#endif
+           for (i=0;i<len_0;i++) fmtw[i]=(WCHAR)fmta[i];
+
+       for (i=0;i<len_0;i++)
+       {   if (fmtw[i]==L'%') do
+           {   keepgoing=0;
+               switch (fmtw[i+1])
+               {   case L'0': case L'1': case L'2': case L'3': case L'4':
+                   case L'5': case L'6': case L'7': case L'8': case L'9':
+                   case L'.': case L'*':
+                   case L'-':  i++; keepgoing=1; break;
+                   case L's':  fmtw[i+1]=L'S';   break;
+                   case L'S':  fmtw[i+1]=L's';   break;
+                   case L'c':  fmtw[i+1]=L'C';   break;
+                   case L'C':  fmtw[i+1]=L'c';   break;
+               }
+           } while (keepgoing);
+       }
+       fmt = (const TCHAR *)fmtw;
+    } while (0);
+
+    va_start (ap,fmta);
+    _vsntprintf (buf,sizeof(buf)/sizeof(TCHAR)-1,fmt,ap);
+    buf [sizeof(buf)/sizeof(TCHAR)-1] = _T('\0');
+    va_end (ap);
+
+#if defined(_WIN32_WINNT) && _WIN32_WINNT>=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
 
 void OpenSSLDie(const char *file,int line,const char *assertion)
        {
-       fprintf(stderr,
+       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
+       _exit(3);
+#endif
+       }
+
+#ifndef OPENSSL_FIPSCANISTER
+void *OPENSSL_stderr(void)     { return stderr; }
+#endif
+
+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;
+
+       for (i = 0; i < len; i++)
+               x |= a[i] ^ b[i];
+
+       return x;
        }