1 /* crypto/cryptlib.c */
2 /* ====================================================================
3 * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
31 * 6. Redistributions of any form whatsoever must retain the following
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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 * ====================================================================
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).
55 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
56 * All rights reserved.
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.
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).
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.
76 * Redistribution and use in source and binary forms, with or without
77 * modification, are permitted provided that the following conditions
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)"
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
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.]
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.
117 #include "cryptlib.h"
118 #include <openssl/safestack.h>
120 #if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_WIN16)
121 static double SSLeay_MSVC5_hack=0.0; /* and for VC1.5 */
124 #if defined(__i386) || defined(__i386__) || defined(_M_IX86) || \
125 defined(__INTEL__) || \
126 defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
128 unsigned int OPENSSL_ia32cap_P[2];
129 unsigned int *OPENSSL_ia32cap_loc(void) { return OPENSSL_ia32cap_P; }
131 #if defined(OPENSSL_CPUID_OBJ) && !defined(OPENSSL_NO_ASM) && !defined(I386_ONLY)
132 #define OPENSSL_CPUID_SETUP
134 typedef unsigned __int64 IA32CAP;
136 typedef unsigned long long IA32CAP;
138 void OPENSSL_cpuid_setup(void)
139 { static int trigger=0;
140 IA32CAP OPENSSL_ia32_cpuid(void);
147 if ((env=getenv("OPENSSL_ia32cap")))
149 { if (!sscanf(env,"%I64i",&vec)) vec = strtoul(env,NULL,0); }
151 vec = strtoull(env,NULL,0);
154 vec = OPENSSL_ia32_cpuid();
157 * |(1<<10) sets a reserved bit to signal that variable
158 * was initialized already... This is to avoid interference
159 * with cpuid snippets in ELF .init segment.
161 OPENSSL_ia32cap_P[0] = (unsigned int)vec|(1<<10);
162 OPENSSL_ia32cap_P[1] = (unsigned int)(vec>>32);
167 unsigned int *OPENSSL_ia32cap_loc(void) { return NULL; }
169 int OPENSSL_NONPIC_relocated = 0;
170 #if !defined(OPENSSL_CPUID_SETUP) && !defined(OPENSSL_CPUID_OBJ)
171 void OPENSSL_cpuid_setup(void) {}
174 #if (defined(_WIN32) || defined(__CYGWIN__)) && defined(_WINDLL)
176 /* pick DLL_[PROCESS|THREAD]_[ATTACH|DETACH] definitions */
178 /* this has side-effect of _WIN32 getting defined, which otherwise
179 * is mutually exclusive with __CYGWIN__... */
182 /* All we really need to do is remove the 'error' state when a thread
185 BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason,
190 case DLL_PROCESS_ATTACH:
191 OPENSSL_cpuid_setup();
192 #if defined(_WIN32_WINNT)
194 IMAGE_DOS_HEADER *dos_header = (IMAGE_DOS_HEADER *)hinstDLL;
195 IMAGE_NT_HEADERS *nt_headers;
197 if (dos_header->e_magic==IMAGE_DOS_SIGNATURE)
199 nt_headers = (IMAGE_NT_HEADERS *)((char *)dos_header
200 + dos_header->e_lfanew);
201 if (nt_headers->Signature==IMAGE_NT_SIGNATURE &&
202 hinstDLL!=(HINSTANCE)(nt_headers->OptionalHeader.ImageBase))
203 OPENSSL_NONPIC_relocated=1;
208 case DLL_THREAD_ATTACH:
210 case DLL_THREAD_DETACH:
213 case DLL_PROCESS_DETACH:
220 #if defined(_WIN32) && !defined(__CYGWIN__)
224 #if defined(_UNICODE) || defined(__UNICODE__)
225 #define _vsntprintf _vsnwprintf
227 #define _vsntprintf _vsnprintf
231 #define alloca _alloca
234 #if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
235 int OPENSSL_isservice(void)
239 static union { void *p; int (*f)(void); } _OPENSSL_isservice = { NULL };
241 if (_OPENSSL_isservice.p == NULL) {
242 HANDLE h = GetModuleHandle(NULL);
244 _OPENSSL_isservice.p = GetProcAddress(h,"_OPENSSL_isservice");
245 if (_OPENSSL_isservice.p == NULL)
246 _OPENSSL_isservice.p = (void *)-1;
249 if (_OPENSSL_isservice.p != (void *)-1)
250 return (*_OPENSSL_isservice.f)();
252 (void)GetDesktopWindow(); /* return value is ignored */
254 h = GetProcessWindowStation();
255 if (h==NULL) return -1;
257 if (GetUserObjectInformationW (h,UOI_NAME,NULL,0,&len) ||
258 GetLastError() != ERROR_INSUFFICIENT_BUFFER)
261 if (len>512) return -1; /* paranoia */
262 len++,len&=~1; /* paranoia */
263 name=(WCHAR *)alloca(len+sizeof(WCHAR));
264 if (!GetUserObjectInformationW (h,UOI_NAME,name,len,&len))
267 len++,len&=~1; /* paranoia */
268 name[len/sizeof(WCHAR)]=L'\0'; /* paranoia */
270 /* This doesn't cover "interactive" services [working with real
271 * WinSta0's] nor programs started non-interactively by Task
272 * Scheduler [those are working with SAWinSta]. */
273 if (wcsstr(name,L"Service-0x")) return 1;
275 /* This covers all non-interactive programs such as services. */
276 if (!wcsstr(name,L"WinSta0")) return 1;
281 int OPENSSL_isservice(void) { return 0; }
284 void OPENSSL_showfatal (const char *fmta,...)
288 #ifdef STD_ERROR_HANDLE /* what a dirty trick! */
291 if ((h=GetStdHandle(STD_ERROR_HANDLE)) != NULL &&
292 GetFileType(h)!=FILE_TYPE_UNKNOWN)
293 { /* must be console application */
295 vfprintf (stderr,fmta,ap);
301 if (sizeof(TCHAR)==sizeof(char))
302 fmt=(const TCHAR *)fmta;
305 size_t len_0=strlen(fmta)+1,i;
308 fmtw = (WCHAR *)alloca(len_0*sizeof(WCHAR));
309 if (fmtw == NULL) { fmt=(const TCHAR *)L"no stack?"; break; }
311 #ifndef OPENSSL_NO_MULTIBYTE
312 if (!MultiByteToWideChar(CP_ACP,0,fmta,len_0,fmtw,len_0))
314 for (i=0;i<len_0;i++) fmtw[i]=(WCHAR)fmta[i];
316 for (i=0;i<len_0;i++)
317 { if (fmtw[i]==L'%') do
320 { case L'0': case L'1': case L'2': case L'3': case L'4':
321 case L'5': case L'6': case L'7': case L'8': case L'9':
322 case L'.': case L'*':
323 case L'-': i++; keepgoing=1; break;
324 case L's': fmtw[i+1]=L'S'; break;
325 case L'S': fmtw[i+1]=L's'; break;
326 case L'c': fmtw[i+1]=L'C'; break;
327 case L'C': fmtw[i+1]=L'c'; break;
331 fmt = (const TCHAR *)fmtw;
335 _vsntprintf (buf,sizeof(buf)/sizeof(TCHAR)-1,fmt,ap);
336 buf [sizeof(buf)/sizeof(TCHAR)-1] = _T('\0');
339 #if defined(_WIN32_WINNT) && _WIN32_WINNT>=0x0333
340 /* this -------------v--- guards NT-specific calls */
341 if (GetVersion() < 0x80000000 && OPENSSL_isservice() > 0)
342 { HANDLE h = RegisterEventSource(0,_T("OPENSSL"));
343 const TCHAR *pmsg=buf;
344 ReportEvent(h,EVENTLOG_ERROR_TYPE,0,0,0,1,0,&pmsg,0);
345 DeregisterEventSource(h);
349 MessageBox (NULL,buf,_T("OpenSSL: FATAL"),MB_OK|MB_ICONSTOP);
352 void OPENSSL_showfatal (const char *fmta,...)
356 vfprintf (stderr,fmta,ap);
359 int OPENSSL_isservice (void) { return 0; }
362 void OpenSSLDie(const char *file,int line,const char *assertion)
365 "%s(%d): OpenSSL internal error, assertion failed: %s\n",
366 file,line,assertion);
367 #if !defined(_WIN32) || defined(__CYGWIN__)
370 /* Win32 abort() customarily shows a dialog, but we just did that... */
376 void *OPENSSL_stderr(void) { return stderr; }